JP2006000034A - Rice grain coating equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To properly perform coating of a coating material solution on the surface of rice grains in a state where variation in coating state is reduced even when the ratio of the amount of coating material solution supplied to the amount of rice grains is small. A rice grain coating device that can be used is provided.
A coating material solution for coating rice grains is supplied through a coating material supply port and a stirring and conveying means for conveying rice grains received from the rice grain receiving port into a stirring chamber forming member and discharged from the rice grain discharge port. And a coating material solution supplying means for mixing the air ejected from the air ejection part E and the coating material solution ejected from the coating material solution ejection part F and atomizing the coating material solution, The atomized coating material solution is configured to be supplied to the rice grains that are transported inside the stirring chamber forming member 52.
[Selection] FIG.

Description

  The present invention provides a cylindrical stirring chamber forming member and a rice grain which is provided in the stirring chamber forming member and received in the stirring chamber forming member from the rice grain receiving port in the longitudinal direction of the stirring chamber forming member. And agitating and conveying means for discharging from the rice grain outlet, and the inside of the agitating chamber forming member through the coating material supply port formed at a position closer to the lower side of the rice grain conveying direction than the rice grain receiving port. And a covering material solution supplying means for supplying a covering material solution for covering the rice grains to the rice grains, and configured to coat the covering material solution on the rice grains conveyed inside the stirring chamber forming member. The present invention relates to a rice grain coating apparatus.

  The rice grain coating apparatus having the above-mentioned configuration accepts, for example, rice grains from which all or almost all of the paste powder layer has been removed as rice grains, and supplies a starch solution or the like as a coating material, so that all or almost all of the paste powder layer is applied. Although it is used for washing-free rice production in which a film is formed on the surface of the removed rice grain to produce washing-free rice, such rice grain coating apparatus has conventionally been configured as follows. .

  That is, a screw type stirring and conveying means is provided inside the cylindrical stirring chamber forming member, and the rice grains received from the rice grain receiving port to the inside of the stirring chamber forming member are conveyed by the stirring and conveying means from the rice grain discharge port. A coating material supply port is formed at a position closer to the lower side of the rice grain conveying direction than the rice grain receiving port, and an aqueous gelatin solution as an example of the coating material solution is stirred through the coating material supply port. There was a configuration in which the rice grains were supplied in a state of being dropped with respect to the rice grains being conveyed inside the chamber forming member, and the rice grains were coated with the coating material solution while being stirred and conveyed by the agitating and conveying means ( For example, see Patent Document 1.)

JP-A-5-137521

  In the above conventional configuration, the coating material solution is dropped onto the rice grains conveyed by the stirring and conveying means inside the stirring chamber forming member, that is, the coating material solution is dropped through the coating material supply port in a liquid state. Since it is configured to be supplied in a state, it has the following disadvantages.

  That is, to the rice grain on which the dripping liquid coating material solution directly falls, the liquid coating material solution directly falls on and adheres to the surface of the rice grain, so that the entire surface of the rice grain can be coated. For rice grains that are far from the dripping position where the coating material solution is dripping, it is difficult to attach the liquid coating material solution to the surface of the rice grains in a sufficiently diffused state so as to reach many rice grains. It was.

  In addition, when the film is formed by coating the surface of the rice grain with a coating material solution, it is desirable that the film formed on the surface of the rice grain be formed as thin and even as possible. When the ratio of the amount of the liquid coating material solution to the amount of rice grains is small and the supply amount per unit time of the coating material solution supplied to the rice grains conveyed by the stirring and conveying means is small, the coating material For rice grains that are far from the dropping position where the solution is dripping, it is difficult to attach the liquid coating material solution to the surface of the rice grains in a sufficiently diffused state so as to reach many rice grains. It was. As a result, the covering material cannot be sufficiently adhered to the rice grains away from the dripping position, and there is a high possibility that the rice grains cannot be coated with the covering material solution over the entire surface of the rice grains. There is a disadvantage that the variation becomes large and the rice grain cannot be properly coated.

  The object of the present invention is to reduce the variation in the coating state even when the amount of the coating material solution supplied to the rice grain being conveyed by the agitating and conveying means is small per unit time. It is in the point which provides the rice grain coating | coated apparatus which makes it possible to make the surface coat | cover with a coating material solution appropriately.

  A first characteristic configuration of the present invention is a cylindrical stirring chamber forming member, and the stirring chamber forming member which is provided in the stirring chamber forming member and receives rice grains received from the rice grain receiving port into the stirring chamber forming member. Agitating and conveying means for conveying in the longitudinal direction of the rice grains and discharging from the rice grain outlet, and through the coating material supply port formed at a position closer to the lower side of the rice grain conveying direction than the rice grain receiving port, into the inside of the stirring chamber forming member And a coating material solution supplying means for supplying a coating material solution for coating the rice grains to the rice grains being conveyed, and covering the rice grains conveyed within the stirring chamber forming member with the coating material solution A rice grain coating apparatus configured as described above, wherein the coating material solution supply means includes an air ejection unit that ejects the supplied air, and a coating material solution ejection unit that ejects the supplied coating material solution. Prepared, said The air ejected from the air ejection part and the coating material solution ejected from the coating material solution ejection part are mixed and the coating material solution is atomized, and the atomized coating material solution is added to the atomized coating material solution. It exists in the point comprised so that it may supply with respect to the rice grain currently conveyed inside the stirring chamber formation member.

  According to the first characteristic configuration, the rice grains received in the inside of the stirring chamber forming member from the rice grain receiving port are transported in the longitudinal direction of the stirring chamber forming member by the stirring transporting means, but the coating material is supplied by the coating material solution supplying means. The rice grain coating material solution is supplied to the rice grains conveyed inside the stirring chamber forming member through the mouth, and the rice grains are coated with the coating material solution and discharged from the rice grain discharge port to the outside. Then, the air ejected from the air ejection part and the coating material solution ejected from the coating material solution ejection part are mixed to atomize the coating material solution, and the atomized coating material A solution will be supplied with respect to the rice grain currently conveyed in the inside of a stirring chamber formation member.

  Thus, since the coating material solution is supplied to the rice grains in an atomized state, for example, even when a small amount of the coating material solution is supplied, the coating material solution is atomized. As a result, the rice grains are supplied evenly as much as possible while being diffused over a wide range. In addition, since the atomized coating material solution is supplied in a state in which the jetted air is mixed, it can be supplied in a state of being permeated between the rice grains by the air, and is as wide as possible. It is possible to coat the entire surface of the rice grain with the coating material solution in a state of being diffused over the range. As a result, for example, even when the ratio of the amount of the coating material solution to the amount of rice grains is small and the supply amount of the coating material solution is small, the coating material solution is applied to the surface of the rice grain in a state where the variation in the coating state is as small as possible. It can be coated.

  Therefore, even when the amount of the coating solution supplied to the rice grains being conveyed by the agitating and conveying means per unit time is small, the coating material is applied to the surface of the rice grains with less variation in the coated state. It came to be able to provide the rice grain coating device which makes it possible to perform covering with a solution appropriately.

  According to a second characteristic configuration of the present invention, in addition to the first characteristic configuration, the coating material solution supply means includes an air ejection hole as the air ejection portion and a coating material solution ejection hole as the coating material solution ejection portion, respectively. It is in the point comprised with the nozzle for spraying formed.

  According to the second characteristic configuration, each of the air ejection hole and the coating material solution ejection hole is formed in the spray nozzle, and the air ejection part and the coating material solution ejection part are configured by separate members. As a result, it is easier to assemble compared to those separately assembled. For example, even if it is frequently detached for cleaning or the like, the air ejection holes formed in the spray nozzle and the coating material solution ejection Since the relative positional relationship with the holes is always the same, when mixing the atomized air from the air ejection holes with the coating material solution ejected from the coating material solution ejection holes and atomizing, the coating material solution is always the same. So that it can be atomized in a stable state.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
The washing-free rice production equipment is for producing washing-free rice by forming a film covering the surface of the rice grain by adding a coating material solution to the rice grain from which all or most of the paste layer has been removed, and drying it. And when the structure is divided roughly, as shown in FIG. 1, the post-process which performs the washing | cleaning rice manufacture part A which manufactures non-washing rice, the inspection, packaging, etc. of the non-washing rice manufactured in the non-washing rice manufacturing part A Part B and a control part C with a display operation panel for controlling the operation of each part of the equipment under preset operating conditions.

First, the structure of the non-washed rice production unit A will be described.
This washing-free rice production department A has, as its main equipment, a coating material solution generator 1 for producing a coating material solution in which a quality improver for improving the quality of starch and rice grains as a coating material is dissolved in water. It is obtained in the rice mill 2 as the rice grain producing device to be coated, which removes all or most of the paste layer of the rice grain (milled rice) after the treatment is finished to produce the rice grain to be coated, and the rice mill 2 The agitating and conveying machine 3 for producing the adhered rice grains by adhering the covering material solution generated in the covering material solution generating apparatus 1 while stirring and conveying the coated rice grains to be coated, is supplied from the agitating and conveying machine 3 It comprises a drying device 4 or the like that dries the coating material solution adhered to the adhered rice grains to form a film on the surface of the rice grains to be coated.

  Further, the washing-free rice production department A is configured so that rice grains conveyed by a conveying machine (not shown) are supplied to the rice mill 2 after the rice milling process is completed. The rice grains thus supplied are supplied to the agitating / conveying machine 3, and the rice grains discharged from the agitating / conveying machine 3 are supplied to the drying device 4. Further, the rice grains that have been dried with the starch solution by the drying device 4 are transported to the post-processing section B by the transport device 7.

  The post-processing unit B temporarily removes the crushed grains and small-diameter foreign substances in the rice grain group conveyed by the conveying apparatus 7 and the rice grains that have been subjected to the foreign substance removing process by the foreign substance removing apparatus 8. The rice grain tank 9 to be stored, the defective substance removing apparatus 10 for removing defective grains such as colored grains and waste rice from the rice grains dropped and supplied from the rice grain tank 9, and the defective substances are removed by the defective article removing apparatus 10 and air A metal detector 12 that inspects the presence or absence of metal contaminants for rice grains that are air-conveyed by the conveying device 11; a measuring tank 13 that measures and discharges the rice grains inspected by the metal detector 12 by a predetermined amount; A packaging device 14 for packaging rice grains discharged from the measuring tank 13 by a predetermined amount in a packaging bag is provided.

Next, each part of the non-washed rice production department A will be described.
The coating material solution generator 1 stirs and mixes starch and water at a set ratio and sends out the starch aqueous solution, and stores the quality improver and stores the quality improver stored therein. A high-temperature steam (110) while stirring the quality improver supply unit 16 for sending out a set amount, the starch aqueous solution stirred and mixed in the starch aqueous solution generation supply unit 15 and the quality improver supplied from the quality improver supply unit 16 And a high-temperature solution generation unit 17 that generates a coating material solution by spraying.

  If explanation is added, as shown in FIG. 1, the starch aqueous solution production | generation supply part 15 is set to the starch storage tank 18 which stores solid-powder-like starch, and the set amount per unit time with the vibration feeder 19 from the starch storage tank 18 A starch aqueous solution tank 21 for storing the starch fed out one by one and the water supplied through the water supply channel 20, a suspended load cell 22 for measuring the weight of the starch aqueous solution tank 21, and the stirring provided in the starch aqueous solution tank 21. It comprises a stirring device 23 for rotating the blades 23a by an electric motor 23b to stir and mix the starch and water in the starch aqueous solution tank 21.

  As the solid powdery starch, phosphoric acid crosslinked starch which is a crosslinked type modified starch is used. In addition, other types of modified starches such as etherified starch such as hydroxypropyl starch and esterified starch such as starch acetate may be used as the starch.

  In addition, the water supply channel 20 is provided with an on / off valve 24 for interrupting the flow. Water is supplied while measuring the weight by the load cell 22 and is stopped when the set weight is reached. While the starch is supplied, the supply is stopped when the ratio of water and starch reaches a weight corresponding to the set ratio. The starch aqueous solution of starch and water stirred and mixed in the starch aqueous solution tank 21 is configured to be supplied to the high-temperature solution generating unit 17 through the starch aqueous solution supply path 25, and the starch aqueous solution supply path 25 has a starch. An intermittent valve 26 is provided that can be switched between a state in which the aqueous solution is supplied and a state in which the supply is stopped.

  The quality improver supply unit 16 sends out a quality improver from the quality improver storage tank 27 for storing the solid powder quality improver, and the quality improver storage tank 27, and then sends the quality improver through the quality improver supply path 28. A vibration feeder 29 and the like for supplying the solution generation unit 17 are provided.

  Explaining about the quality improver, for example, improving the nutritional quality, improving the taste of rice, or improving the cooked condition such as whether the rice is glossy or not when it is cooked unwashed rice There are things to make. Specifically, as a quality improver for improving nutrition as quality, for example, protein, dietary fiber, mineral (potassium, calcium, magnesium, iron, zinc, etc.), phytic acid, vitamins B1, B2, B6, There are various nutritional supplements such as inositol. Examples of the quality improver that improves the taste of rice as a quality include a taste improver that improves the taste of rice such as sugar and sugar alcohol. Moreover, as a quality improvement agent which improves the above-mentioned cooking condition as quality, there exist rice cooking improvers, such as vegetable fats and oils and an emulsifier, for example. Furthermore, as a quality improving agent, a diet food material or the like that can obtain a diet effect by delaying digestion of ingested food can be used.

  The high-temperature solution generation unit 17 includes a coating solution storage tank 30 that stores the starch aqueous solution supplied from the starch aqueous solution generation supply unit 15 and the quality improvement agent supplied from the quality improvement agent supply unit 16, and the coating solution storage tank 30. A boiler 32 that supplies steam for heating through a steam supply path 31, a water softener 33 that prepares tap water to be supplied to the boiler 32 into soft water, and a high-temperature starch solution in the coating solution storage tank 30 is coated with a coating material solution supply path 34. And a delivery pump 35 and the like that are supplied to the agitating and conveying machine 3. Then, a jet nozzle 36 for jetting hot steam from the steam supply path 31 into the coating solution storage tank 30 is provided, and hot steam generated by the boiler 32 is jetted from the jet nozzle 36 into the coating solution storage tank 30. It is the composition which makes it.

  In the coating solution storage tank 30, high-temperature steam is jetted from the jet nozzle 36, so that the starch aqueous solution and the quality improver of starch and water are heated by the high-temperature thermal energy of the steam, and the starch and quality The improver is dissolved and gelatinized to produce a high-temperature coating material solution. At this time, not only heating with high-temperature steam but also heating with high-temperature solution is carried out.

  In the coating solution storage tank 30, the starch which is located near the bottom of the tank and is precipitated at the bottom of the tank or the starch to be precipitated is agitated, and the starch and water (solution) are well mixed with each other. Is provided with a lower stirring blade 37 that maintains a sufficiently dispersed state. Also provided is an upper stirring blade 38 that stirs a quality improver that is likely to remain in a powdery state while floating near the surface of the solution stored in the coating solution storage tank 30 and maintains the state dispersed in the solution. It has been. The lower stirring blade 37 and the upper stirring blade 38 are configured to be rotated by a common electric motor 39. However, the lower stirring blade 37 is configured by setting the shape of the blade so that the starch is moved and dispersed upward by rotation, and the upper stirring blade 38 moves the quality improver downward by rotation. The shape of the blade is set so as to be dispersed.

  The starch aqueous solution tank 21 of the starch aqueous solution generation and supply unit 15 is constituted by a tank having a capacity smaller than the capacity of the coating solution storage tank 30, and the starch aqueous solution is repeatedly supplied from the starch aqueous solution generation and supply unit 15 to the coating solution storage tank 30. Is configured to do. More specifically, a coating solution storage tank 30 is prepared by repeatedly supplying a set amount of starch aqueous solution obtained by stirring and mixing starch and water at a set ratio to the coating solution storage tank 30 a plurality of times. A predetermined amount of starch aqueous solution is supplied into 30. Then, after a predetermined amount of solution is supplied, steam is supplied to gelatinize the starch to produce a starch solution. Thereafter, when the temperature of the starch solution becomes sufficiently high, the quality improver supply unit 16 Then, a set amount of the solid powder quality improver is collected and supplied to the coating solution storage tank 30. The lower stirring blade 37 and the upper stirring blade 38 are rotated from the start of supply from the starch aqueous solution generation supply unit 15. Incidentally, as the mixing ratio of the coating material solution, for example, the ratio of starch to 1 liter of water is set to 40 g, and the ratio of the quality improver is set to 300 g.

  As shown in FIG. 2, the starch aqueous solution generation / supply unit 15 and the quality improver supply unit 16 are disposed above the coating solution storage tank 30, and the starch generated in the starch aqueous solution generation / supply unit 15. The quality improving agent supplied from the aqueous solution and quality improving agent supply unit 16 through the supply path 28 is supplied to the coating solution storage tank 30.

  The coating material solution supply path 33 is provided with a switching valve V1 that can freely open and close the supply path and a flow meter 42 that measures the flow rate of the coating material solution, and the flow meter 42 measures the amount supplied to the agitating and conveying machine 3. However, the operating state of the delivery pump 35 is controlled. A flow path switching valve 43 is provided in the middle of the coating material solution supply path 34 so that all of the supplied coating material solution can be returned to the coating solution storage tank 30 through the circulation path 44. Further, the circulation path 44 further includes a flow path switching valve 45 that can be switched between a state in which the coating material solution is returned to the coating solution storage tank 30 and a state in which the circulating water for cleaning flows further to the lower side, On the lower side in the flow direction, the switching valve V2 for switching between the state in which the circulating water for cleaning is supplied to the coating solution storage tank 30 and the state in which it is shielded, and the state in which the circulating water for cleaning is discharged and the state in which the drainage is stopped are switched. A flexible switching valve V3 is provided. In the figure, reference numeral 48 denotes a cleaning pump for circulating and supplying cleaning water for cleaning the inside of the pipe at the end of the work, and V4 to V7 are switching valves for opening and closing the flow path of the cleaning water.

  Then, when generating the coating material solution, as shown by the one-dot chain line in FIG. 1, a pre-circulation operation is performed in which the high-temperature solution is circulated through the circulation path 44 and the temperature of the pipe is raised only during the set time. Like to do. Further, after the generation and supply operation of the coating material solution is completed, as shown by the two-dot chain line in FIG. 1, clean water is circulated and supplied through the circulation path 44 by the cleaning pump 48 to provide the coating solution storage tank 30 and the piping. It is the structure which can clean the inside. In addition, the return part to the coating solution storage tank 30 of circulating water is comprised as an ejection nozzle, and the inner surface of the coating solution storage tank 30 can be cleaned now.

  The rice mill 2 is not described in detail, but as shown in FIG. 2 to FIG. 4, after receiving the polished rice grains supplied by a feeder (not shown) in the rice hopper 2a, It is configured to be fed laterally by a lateral feed screw 2b and uses an upward transfer type that grinds rice grains while moving them upward. In other words, a polishing rice processing chamber is formed inside the cylindrical polishing rice processing cylinder 2c, and a discharge chute 2d for discharging rice grains is provided on the upper side of the polishing rice processing cylinder 2c. Although not shown, in the polished rice processing cylinder 2c, there is a gap between a rotating roll that is provided with a brush around and rotated around the longitudinal axis by an electric motor and a porous cylindrical member positioned on the outer periphery thereof. While transferring the rice grains upward, the brush removes all or most of the residue remaining on the surface of the rice grains, that is, the paste powder layer, and polishes the rice grains, and discharges the rice grains after the polishing process through the discharge chute 2d. It has become.

  The grinding machine 2 is provided with a grinding member such as a grindstone around the rotary roll, instead of removing the paste layer by the scraping action by the brush as described above, and the grinding action by the grinding member. For example, the paste powder layer may be removed. Further, a bar-like rubbing member made of iron or the like may be provided around the rotating roll, and the paste powder layer may be removed by the rubbing action of the rubbing member.

The agitating / conveying machine 3 includes a cylindrical stirring chamber forming member 52 in a sideways posture, and a coating target that is provided in the stirring chamber forming member 52 and received from the rice grain receiving port 53 into the stirring chamber forming member 52. It comprises a stirring and conveying means 55 for conveying the rice grains in the longitudinal direction of the stirring chamber forming member 52 to discharge them from the rice grain outlet 54 and for attaching the coating material solution to the rice grains to be coated. Then, as will be described later, the coating material solution is supplied to the coating material supply port 60 formed in the stirring chamber forming member 52 through the coating material solution supply path 34 in the high-temperature solution generation unit 17 by the feeding action by the delivery pump 35, The coating material solution is supplied into the stirring chamber forming member 52 through the coating material supply port 60. Further, as will be described later, a spray nozzle 100 for spraying the coating material solution in an atomized state is provided at a location where the coating material solution is supplied into the stirring chamber forming member 52 through the coating material supply port 60. In addition, air supply means 101 for supplying the spraying air to the spray nozzle 100 is provided.
Accordingly, the coating material solution is supplied into the stirring chamber forming member 53 by the coating material solution supply path 34, the delivery pump 35, the spray nozzle 100, the air supply means 101, the coating material supply port 60, and the like. The material solution supply means 56 is configured, and the coating material solution is attached to the rice grains to be coated that are conveyed inside the agitating chamber forming member 52 by the coating material solution supply means 56 and the agitating and conveying device 3. A rice grain coating apparatus H is constructed.

Hereinafter, the configuration of the stirring and conveying machine 3 will be described.
That is, as shown in FIGS. 6 and 9, the agitating / conveying machine 3 is integrated integrally with the agitating chamber forming member 52 as the agitating / conveying means 55 over substantially the entire length in the longitudinal direction of the agitating chamber forming member 52. A drive shaft 57 extending in a formed state, and a helical body 58 as a stirring / conveying rotary body that is externally fitted to the drive shaft 57 so as to be integrally rotatable. In addition, an electric motor 59 is provided as drive means for rotationally driving the drive shaft 57 and the spiral body 58.

  The rice grain receiving port 53 for receiving the rice grains supplied from the rice polishing machine 2 is formed at the upper side portion on one end side in the longitudinal direction of the stirring chamber forming member 52, and on the upper side of the rice grain receiving port 53, A hopper-type polishing rice tank 6 is provided, and rice grains supplied from the polishing machine 2 are received by the polishing rice tank 6 and supplied to the inside of the stirring chamber forming member 52 from the rice grain receiving port 53. Yes. A rice grain discharge port 54 for discharging the rice grains toward the drying device 4 is formed at the other end of the stirring chamber forming member 52 in the longitudinal direction. A coating material supply port 60 is formed at a position that is intermediate in the longitudinal direction of the stirring chamber forming member 52 and slightly closer to the lower side in the conveying direction than the rice grain receiving port 53.

  Thus, the reason why the covering material supply port 60 is formed at a position slightly closer to the lower side in the conveying direction than the rice grain receiving port 53 is as follows. That is, in the vicinity of the rice grain receiving port inside the stirring chamber forming member 52, the rice grain conveyance speed is caused by fluctuations in the density and flow rate of rice grains received from the rice grain receiving port 53 into the stirring chamber forming member 52. The rice grains received from the rice grain receiving port 53 may not be satisfactorily covered with the coating material solution over the entire surface due to fluctuations in the conveyance density of the rice grains. Therefore, by forming the coating material supply port 60 at a position closer to the lower side of the rice grain conveying direction than the rice grain receiving port 53 in the stirring chamber forming member 52, a stable conveying state with less fluctuation of the rice grain conveying speed is achieved. In this state, the coating material solution can be supplied, and the entire surface of the rice grain can be satisfactorily coated with the coating material solution.

  As shown in FIG. 9, the spiral body 58 is attached to the outer peripheral portion of a cylindrical shaft portion 58 a that is externally fitted to the drive shaft 57 and connected by a key 61 so as to rotate integrally with the drive shaft 57. A single spiral blade body 58b (screw blade) is integrally connected, and the spiral blade body 58b is continuously connected to the end portion in the conveying direction so as to be continuously connected to the axial direction. Is provided with a scraping blade 58c along the line. Further, spiral blade breakage portions 62 where the spiral blade body 58b is cut off are provided at three locations on the lower side of the rice grain conveying direction with respect to the portion corresponding to the coating material supply port 60. Are formed with a plurality of rod-like stirring bodies 63 extending in the radial direction with appropriate intervals in the circumferential direction. The spiral blade breakage portion 62 has a structure in which the stirring of the rice grains is promoted by acting as a resistance to the transportation of the rice grains by the spiral body 58 because the stirring action by the stirring body 63 is not performed.

  As shown in FIG. 7, the rice grain outlet 54 is formed in a long shape in the rice grain conveying direction, and is an opening adjusting member that is mounted on the outer periphery of the stirring chamber forming member 52 so as to be capable of changing the position. A long discharge port part 54a whose opening degree can be freely adjusted by 64 and a terminal discharge port part 54b formed wider than that are formed.

  And the said coating material solution supply means 56 which supplies the said coating material solution to the inside of the said stirring chamber formation member 53 is supplied, and the air ejection hole 102 as the air ejection part E which ejects the supplied air The covering material solution jetting hole 103 serving as a coating material solution jetting part F for jetting the coating material solution is provided, and the air jetted from the air jetting hole 102 serving as the air jetting part E and the coating material The coating material solution ejected from the coating material solution ejection hole 103 as the solution ejection part F is mixed to atomize the coating material solution, and the atomized coating material solution is formed into the stirring chamber. It is comprised so that it may supply with respect to the rice grain conveyed within the member 52. FIG. The coating material solution supply means 56 includes a spray nozzle 100 in which an air ejection hole 102 as the air ejection part E and a coating material solution ejection hole 103 as the coating material solution ejection part F are formed. Configured.

  When a specific configuration is described, as shown in FIGS. 13 and 14, the coating material solution supply passage 34 is provided on the lower side in the supply direction, that is, the coating material supply port formed in the stirring chamber forming member 52. Spray nozzles 100 are provided at 60 desired locations. The spray nozzle 100 sprays the coating material solution supplied through the coating material solution supply passage 34 downward through the coating material supply port 60 toward the inside of the stirring chamber forming member 52. Is formed, and an air ejection hole 102 for ejecting air toward the obliquely downward direction intersecting the ejection direction of the coating material solution ejection hole 103 in a state corresponding to the discharge side tip of the coating material solution ejection hole 103 is provided. Is formed. An air compressor 104 that supplies the air for jetting to the air jet hole 102, and a pressure adjusting valve 105 as an air supply pressure adjusting means that can change and adjust the supply pressure of the air supplied from the air compressor 104 to the air jet hole 102. And are provided. This pressure adjustment valve 105 is configured to adjust the supply pressure of the air supplied to the air ejection hole 102 to an appropriate pressure set as an appropriate value in advance through experiments or the like. Therefore, the air supply unit 101 is configured by the air compressor 104 and the pressure adjustment valve 105.

  On the other hand, the discharge amount of the coating material solution discharged from the coating material solution ejection hole 103 is configured to be measured by the flow meter 42 described above, and the measured value is appropriate for the surface of the rice grain by an experiment or the like in advance. The operation state of the delivery pump 35 is controlled so as to be an appropriate value set as an appropriate value for forming the film. An appropriate value for the discharge amount of the coating material solution is, for example, a small flow rate of several milliliters per second.

Next, the operation of the stirring and conveying machine 3 configured as described above will be described.
Rice grains received from the rice grain receiving port 53 into the stirring chamber forming member 52 are conveyed while being stirred toward the rice grain discharge port 54 by the spiral body 58, and are conveyed while being stirred as such. A coating material solution is supplied from the coating material supply port 60 to the rice grains. At this time, as described above, the coating material solution is discharged from the coating material solution ejection hole 103 at a discharge amount set to an appropriate value, and the blown air adjusted to an appropriate pressure is supplied to the air outlet 102. The coating material solution is atomized by the blown air, and is supplied to the rice grains in a sprayed state by the blowing action of the blown air in the atomized state. As a result, even if a small amount of coating material solution is supplied as described above, it is evenly spread over the surface of the rice grain in a state of being atomized and widely diffused, and covers the entire surface of each grain of rice grains. The coating material solution can be attached in the state, and the surface of the rice grain can be coated with the coating material solution in a state where the variation in the coating state is reduced as much as possible.

  Then, when the rice grains reach the long discharge port portion 54a of the rice grain discharge port 54, they are discharged uniformly over a wide range in the direction along the rice grain conveying direction, and the rice grains that have passed through the long discharge port portion 54a are scraped off. It is discharged from the terminal discharge port portion 54b in a state of being scraped by 58c. Furthermore, as described above, the spiral blade breakage portion 62 acts as a resistance to the rice grain conveyance by the spiral blade body 58b, so that the rice grains are rubbed together to spread the coating material solution over the entire surface of each grain of rice grains. It becomes possible to adhere evenly.

  As shown in FIG. 2, the drying device 4 includes a plurality of mounting and transporting portions 65 that receive and transport rice grains dropped and discharged from the rice grain discharge port 54 of the stirring and transporting machine 3. The rice grains that are coated with the coating material solution by the conveyor 3 and fallen and discharged from the rice grain outlet 54 are received by the placing and conveying section 65 and dried while being placed and conveyed, thereby forming a film on the surface of the rice grains. It has become. The placement conveyance unit 65 is formed of a porous body whose outer peripheral shape is formed in a circular shape and is driven to rotate around the vertical axis by a drying electric motor 66, and receives rice grains supplied from above. After being placed and conveyed, it is configured to drop and discharge downward. A plurality of such loading / conveying units 65 are arranged side by side in the vertical direction in such a manner that rice grains dropped and discharged from the upper side are received by the lower side. The plurality of mounting and conveying sections 65 are configured to be accommodated in a substantially cylindrical drying device casing 67.

  Furthermore, a discharge chute 68 for receiving rice grains dropped and discharged from the lowermost loading and transporting portion 65 from the lowermost loading and transporting portion 65 and discharging it to the outside of the apparatus is provided from the drying device casing 67 below the discharge portion of the lowermost loading and transporting portion 65. The rice grains that are provided so as to protrude outward and are discharged to the outside from the discharge chute 68 are conveyed toward the post-processing section B. In the drying device casing 67, an electric heater 69 is provided above the uppermost loading and transporting unit 65, and drying air is supplied to the inside of the drying device 4 above the drying device casing 67. A drying blower 70 is provided. Further, the air inside the drying device 4 is exhausted to the outside by being sucked by an external suction device. Incidentally, a portion of the outer peripheral side wall portion of the drying device casing 67 located above the electric heater 69 is made of a porous punching metal, and a portion below the electric heater 69 is made of a non-porous plate material. ing.

  That is, the adhered rice grains to which the coating material solution has adhered are dropped and discharged from the rice grain discharge port 54 of the agitating and conveying machine 3 onto the uppermost loading and conveying unit 65, and the rice grains are loaded on each loading and conveying unit 65. While being placed and transported, it is sequentially dropped and discharged to the placing and transporting section 65 on the lower side, transferred to the placing and transporting section 65 at the bottom, and discharged from the discharge chute 68 to the outside of the apparatus. In the process in which the rice grains are transferred between the respective mounting and conveying sections, the rice grains that are placed and conveyed by the uppermost loading and conveying section 65 are dried by the radiant heat of the electric heater 69, and the upper portion of the drying device casing 67. After the drying air sucked or sucked from the air is heated by the electric heater 69, the coating adhering to the rice grains is made to pass through the respective mounting and transporting portions 65 arranged vertically and to be discharged out of the apparatus. The material solution is to be driedThat is, the attached rice grains are dried by the cooperative drying action by the radiant heat from the electric heater 69 and the ventilation of the drying air to form a film.

  In this washing-free rice production facility, the coating material solution generating device 1 excluding the water softener 33, the polishing machine 2, the stirring and conveying machine 3, the drying device 4 and the control unit C are integrally assembled to produce washing-free rice. The unit U is configured. As shown in FIGS. 2 and 3, the washing-free rice production unit U includes the drying device casing 67 and a base frame 73 that is lower than the drying device casing 67 and is assembled in a substantially rectangular parallelepiped shape. They are arranged side by side in the horizontal direction, and the base frame 73 is constructed by assembling the polishing machine 2, the stirring and conveying machine 3, the control unit C and the like. Although not shown, cleaning pipes and the like are also assembled.

  The agitating / conveying machine 3 overlaps the drying device 4 in a plan view with one end in the longitudinal direction where the rice grain discharge port 54 is located in the stirring chamber forming member 52 and the rice grain receiving port in the stirring chamber forming member 52. A state in which the other end portion in the longitudinal direction where 53 is located protrudes laterally outward of the drying device 4 is set as a working position, and by turning around a turning fulcrum located laterally outward of the drying device 4 The operation position and a maintenance position in which the entire stirring chamber forming member 52 protrudes outward in the lateral direction of the drying device 4 are configured to be switchable.

  Then, the work passage 74 along the direction intersecting with the longitudinal direction of the stirring chamber forming member 52 at the work position is positioned on the side opposite to the side where the drying device 4 is present from the swivel fulcrum position. Is formed. In other words, the work passage 74 is configured by forming a mounting table on the upper part of the rectangular parallelepiped-shaped passage forming frame 74a, so that the operator can perform the work in a state of being mounted on the mounting table. Yes. The working passage 74 is positioned on the opposite side of the drying device 4 with respect to the base frame 73 and is fixedly connected to the base frame 73, and the working passage 74, the base frame 73, and The drying device casing 67 is arranged in the horizontal direction in that order and integrally connected to constitute the washing-free rice production unit U.

  Further, between the drying apparatus 4 and the working passage 74, a rice polishing machine 2, an agitating and conveying machine 3, a boiler 32, a control unit C, and the like are provided. And the starch aqueous solution production | generation supply part 15 as the coating material injection | throwing-in part T for supplying a coating material in the location on the opposite side to the side where the said stirring chamber formation member 52 is located with respect to the said working channel | path 74, and quality improvement An agent supply unit 16 is provided, and a coating solution storage tank 30 and the like are provided below them.

  The assembly configuration of the starch aqueous solution generation and supply unit 15 and the quality improver supply unit 16 will be described. As shown in FIGS. 2 and 5, the starch aqueous solution generation and supply unit 15 and the quality improver supply unit 16 have a passage. A solid powdery coating material (starch, quality improver) is supported by a substantially rectangular machine frame 75 connected to the forming frame 74a and is placed on the work passage 74 by the worker. The starch storage tank 18 and the quality improver storage tank 27 are respectively provided at a height that is easy to input, and a covering material input portion T for supplying the covering material is formed. The vibration feeder 19, the starch aqueous solution tank 21, the load cell 22, and the like as described above are provided below the starch storage tank 18, and the vibration feeder 29 and the like are provided below the quality improver storage tank 27. Has been. Note that reference numeral 78 in FIG. 5 denotes a reduction gear electric motor that rotates a stirrer that stirs the starch and the quality improver in the starch storage tank 18 and the quality improver storage tank 27 at a low speed.

  The agitating / conveying machine 3 is provided with a stirring chamber forming member 52, the drive shaft 57, and a spiral body 58 as a rotating body for agitating / conveying by a base end side support member 79 provided so as to be rotatable around the turning fulcrum. The agitating chamber forming member 52 and the spiral body 58 are detachably connected to the base end side support member 79, respectively. Further, each of the stirring chamber forming member 52 and the spiral body 58 is detachably connected to the proximal support member 79 in a state where the stirring chamber forming member 52 and the spiral body 58 are separated into a plurality of divided unit bodies along the longitudinal direction of the stirring chamber forming member 52. Has been.

  Also, a connecting flange portion 80 is formed in each of the plurality of divided unit bodies 52A, 52B of the stirring chamber forming member 52, and the plurality of divided unit bodies 52A, 52B can be detachably clamped at the connection locations. The flanges 80 are sandwiched and connected by the member 81.

Hereinafter, a specific assembly configuration of the agitating and conveying machine 3 will be described.
That is, as shown in FIG. 9, the base end side support member 79 is pivotally fitted to a fixed pin 82 erected in a fixed position on the machine frame 75 so as to be rotatable around the vertical axis Y. A support boss 79a and a laterally-cylinder part 79b positioned on the upper part of the pivotal boss 79a are integrally formed, and the agitating chamber forming member 52, the drive shaft 57, and the spiral body are formed by the laterally-directed cylinder part 79b. 58 is configured to be cantilevered. Accordingly, the base end side support member 79 is configured to support the stirring chamber forming member 52, the drive shaft 57, and the spiral body 58 in a cantilevered manner so as to be rotatable around the longitudinal axis Y of the fixing pin 82. Yes.

  An electric motor 59 with a reduction gear that integrally rotates the drive shaft 57 and the spiral body 58 is attached to the base end side support member 79 in a fixed state. The drive shaft 57 is rotatably supported by a bearing 83 inside the sideways cylindrical portion 79b. The output shaft 59a of the electric motor 59 and the drive shaft 57 are directly connected by a coupling 84 so as to be integrally rotatable. ing. Further, one end of the stirring chamber forming member 52 is externally fitted and attached to the end of the horizontal tube portion 79b, and a plurality of locations are connected and supported by a connecting screw 85, and the connecting screw 85 is removed. The entire stirring chamber forming member 52 can be removed.

Further, the stirring chamber forming member 52 is divided at an intermediate position in the longitudinal direction, and a connecting flange portion 80 is formed at a connecting portion of each of the divided unit bodies 52A and 52B. The divided unit bodies 52A and 52B are connected to each other by sandwiching the flange portions 80 by a detachable clamp member 81 at the connection location. Positioning pins 86 that are fitted so that the circumferential phase is constant are provided on the mating surface portions of the flange portions 80.
As shown in FIG. 8, the clamp member 80 is configured to be able to tighten or loosen the flange portion 80 by adjusting a thumbscrew 87, and can be attached and detached with a simple operation. The agitating chamber forming member 52 is configured such that the swinging end portion side is received and held by a bearing unit 89 that is fastened and fixed to the drive shaft 57 by a fixing screw 88.

  That is, when removing the stirring chamber forming member 52, as shown in FIG. 10, after loosening the fixing screw 88 and removing the bearing unit 89, the intermediate clamp member 81 is removed and the position is set to the swing end side. The division unit body 52A positioned on the base end side can be removed by removing the division unit body 52B to be removed and then removing the connecting screw 85. In addition, the stirring chamber forming member 52 is similarly connected to the flange portion 80 by a detachable clamp member 81 at the connection location with the polishing material hopper 2a and the coating material solution supply path 34 connected to the coating material supply port 60. It is the structure which pinches | interposes and connects. In other words, each flange portion is connected by a detachable clamp member 81 at each of the connection location of the spray nozzle 100 to the coating material supply port 60 and the connection location of the coating material solution supply path 34 to the lower end in the supply direction. It is the structure which pinches | interposes 80 and connects. Accordingly, the spray nozzle 100 is removed so that maintenance work such as cleaning can be easily performed so as to be freely cleaned.

  Similarly, the spiral body 58 is configured to be detachable from the proximal support member 79 in a state where the spiral body 58 is separated into a plurality of divided unit bodies 58A and 58b. That is, the spiral body 58 has a configuration in which the cylindrical shaft portions 58a are separated from each other at the intermediate portion in the longitudinal direction as shown in FIG. 11, and the cylinders of the separated divided unit bodies 58A and 58B are separated. Engagement portions 90 that can be engaged with each other in the axial direction are formed at opposite end portions of the shaft portion 58a, and are configured to rotate integrally by engaging with each other. In addition, the divided unit body 58A located on the base end side and the drive shaft 57 are interlocked and coupled so as to be integrally rotatable by the engagement of the key 91 located at the end on the base end side. The spiral body 58 is also configured to be received and held by the bearing unit 89 that is fastened and fixed to the drive shaft 57 by a fixing screw 88, similarly to the stirring chamber forming member 52. When removing the spiral body 58, the fixing unit 88 is loosened and the bearing unit 89 is removed, so that the divided unit body 58B located on the swing end side can be removed, and the split located on the base end side. The unit body 58A can also be removed in the axial direction.

  And the said stirring chamber formation member 52 is comprised so that the said longitudinal direction one end side part may enter the inside of the said drying apparatus 4 through the side wall part 92 of the said drying apparatus 4 in the said working position, The side wall 92 is formed with an opening 93 through which the stirring chamber forming member 52 passes for switching between the working position and the maintenance position. The opening 93 closes the opening 93 and the opening 93 opens. A door member 94 that can be switched to a state is provided, and the stirring chamber forming member 52 is held in the working position by the door member 94 in the closed state.

  In addition, as shown in FIGS. 2 and 12, an opening 93 for the stirring chamber forming member 52 to enter and exit is formed in the side wall portion 92 of the drying device casing 67 formed in a substantially cylindrical shape. There is provided a door member 94 that can swing open and close around the vertical axis Y2 between the state of covering 93 and the state of opening 93. The swinging edge of the door member 94 is formed in an arc shape along the outer peripheral portion of the stirring chamber forming member 52 and is provided with a packing 95, and the opening 93 of the opening 93 with which the stirring chamber forming member 52 contacts is provided. Similarly, the inner edge portion is formed in an arc shape along the outer peripheral portion of the stirring chamber forming member 52, and a packing 95 is provided. That is, when the door member 94 is switched to the closed state, the door member 94 is brought into contact with the stirring chamber forming member 52 and held at the working position, and the outer peripheral portion of the stirring chamber forming member 52 and the drying device A large gap is prevented from being generated between the casing 67 and the side wall portion 93.

  Then, when performing a maintenance operation such as cleaning, the stirring chamber forming member 52 switches the door member 94 to an open state to open the opening 93 and opens the vertical axis to the maintenance position indicated by a virtual line in FIG. It can be swung around Y1. Then, when turning to this maintenance position, a contact portion 96 (see FIG. 9) formed integrally with the pivot boss 79 a of the base end side support member 79 is provided in the machine frame 73. 97 and is configured to restrict further swinging. In this maintenance position, as shown in FIG. 3, the entire stirring chamber forming member 52 is in a state of approaching the work passage 74, and the maintenance work can be easily performed at a position close to the work passage 74. it can.

[Another embodiment]
Next, another embodiment will be described.

(A) In the above-described embodiment, as the spray nozzle 100, the coating material solution ejection hole 103 formed downward is configured to eject the coating material solution toward the inside of the stirring chamber forming member located on the lower side. An air ejection hole 102 is formed for ejecting air in an obliquely downward direction intersecting the ejection direction of the coating material solution ejection hole 103 in a state corresponding to the discharge side tip of the coating material solution ejection hole 103. However, instead of such a configuration, the following configuration may be used.

  As shown in FIG. 15, with respect to the coating material solution ejection hole 103 as the coating material solution ejection portion F formed downward to eject the coating material solution toward the inside of the stirring chamber forming member 52 located on the lower side. An annular air ejection hole 102 a as the air ejection part E may be formed on the outer periphery of the coating material solution ejection hole 103. The air ejection holes 102a are formed in a substantially concentric annular shape centering on the coating material solution ejection holes 103, and are configured to eject air so as to be gathered in an obliquely lower side and in the central direction. Further, a cylindrical shape that surrounds the radially outer side of the air ejection hole 102a so that the air that is ejected acts on the coating material solution ejected from the coating material solution ejection hole 103 as much as possible. A protrusion 106 is formed. In this configuration, the coating material solution ejected downward from the coating material solution ejection hole 103 is atomized by the ejection of air from the air ejection port 102a, and the atomized coating material solution is It will be supplied to the rice grains being conveyed inside the stirring chamber forming member.

Further, the spray nozzle 100 may be configured as follows.
As shown in FIG. 16, with respect to the coating material solution ejection hole 103 as the coating material solution ejection portion F formed downward to eject the coating material solution toward the inside of the stirring chamber forming member located on the lower side, The air ejection port 102b as the air ejection part E is formed in a state where the air is ejected downwardly in the same manner as the coating material solution ejection hole 103, positioned on the side of the coating material solution ejection hole 103. It is good also as composition to do. That is, the air is ejected in a state parallel to the same direction as the ejection direction of the coating material solution ejected from the coating material solution ejection hole 103. Further, the radially outer side portion of the air ejection hole 102a is surrounded by the radially outer side portion so that the blown air acts on the coating material solution ejected from the coating material solution ejection hole 103 as much as possible. A cylindrical protrusion 106 is formed. In this configuration, the coating material solution ejected from the coating material solution ejection hole 103 is sucked and atomized by the ejector action of the air ejected from the air ejection port 102b, and the atomized coating material solution is stirred. It will be supplied to the rice grains being transported inside the forming member 52.

(B) In the above embodiment, the coating material solution supply means includes a spray nozzle in which each of an air ejection hole as the air ejection portion and a coating material solution ejection hole as the coating material solution ejection portion is formed. However, instead of such a configuration, a dedicated member for air ejection provided with an air ejection part and a dedicated member for coating material solution ejection provided with a coating material solution ejection part are provided. It is good also as a structure provided separately, and is not limited to the said structure.

(C) In the above-described embodiment, the spiral body as a rotating body for stirring and transporting, and a screw conveyor configured by integrally connecting a single spiral blade body (screw blade) to the outer peripheral portion of the shaft Although what was comprised was illustrated, it may replace with such a structure and may be comprised as follows.

  As shown in FIG. 17, inside the stirring chamber forming member 52, a spiral that is formed by a coiled body in which a round bar is bent in a spiral shape and extends spirally along the longitudinal direction of the stirring chamber forming member 52. The drive shaft 57 is connected to the longitudinal direction of the stirring chamber forming member 52 between the outer peripheral surface and the spiral transfer body 58 on the radially inner side of the spiral transfer body 58. It is good also as a structure provided in the state which forms the internal space K. FIG.

  In other words, a cylindrical support body 62 that constitutes a support portion S that supports the helical transport body 58 so as to be integrally rotatable at the both ends in the longitudinal direction of the stirring chamber forming member 52 of the drive shaft 57, 63 are provided. Among these, the cylindrical support body 62 on the side where the electric motor 59 is disposed is externally fitted to the rotary shaft 57 so as to rotate integrally with the rotary shaft 57 by the key 61. A spiral body holding portion 62a that winds and supports a part of the cylindrical transport body 58 in contact and a locking portion 62b that locks one end portion of the spiral transport body 58 in the circumferential direction and transmits rotational force is formed. ing. On the other hand, the cylindrical support 63 on the side opposite to the side where the electric motor 59 is disposed is externally fitted to the rotating shaft 57, and the stepped portion 63 c on the shaft end side is fixed to the shaft end of the rotating shaft 57. The bearing unit 89 fixed at 88 and the end of the rotary shaft 57 are fastened and fixed so as to rotate together with the rotary shaft 57. Similarly to the cylindrical support body 63 on the other side, a spiral body holding portion 63a that winds and supports a part of the spiral transport body 58 in contact with a part of the spiral transport body 58, and one end portion of the spiral transport body 58 in the circumferential direction. And a locking portion 63b for transmitting the rotational force.

  The portion corresponding to the rice grain outlet 54 in the spiral transport body 58 is linear or substantially along the longitudinal direction of the stirring chamber forming member 52 while being close to the inner peripheral surface of the stirring chamber forming member 52. A scraping action portion 58b extending in a straight line is provided. That is, the bar material is integrally connected from the end of the spiral conveying action portion 58a bent in a spiral manner to a location corresponding to the terminal side location of the rice grain outlet 54 in the spiral conveying body 58. The scraping action portion 58b is formed by extending in a linear or substantially linear shape in a state of being close to the inner peripheral surface of the stirring chamber forming member 52. The scraping action part 58b is received by the spiral body holding part 63a in the front cylindrical support 63 so as to prevent the radially outward movement, and the end part of the scraping action part 58b is cylindrical. It is configured to be engaged with the engaging portion 63b of the support 63.

  Also in this configuration, the stirring chamber forming member 52 can be divided and removed, and the spiral conveyance body can be easily removed by releasing the locking of the locking portions 62b and 63b on both sides in the longitudinal direction. Be able to.

(D) In the above embodiment, the stirring chamber forming member is exemplified as having a configuration in which the longitudinal direction is provided in a posture in which the longitudinal direction is horizontal or substantially along the horizontal direction. However, the configuration is not limited to such a configuration, and the longitudinal direction is in the horizontal direction. For example, the rice grain receiving port in the longitudinal direction may be positioned on the upper side and the rice grain discharging port may be positioned on the lower side. Specifically, the stirring chamber forming member may be provided in a posture in which the longitudinal direction is inclined by about 30 degrees with respect to the horizontal direction. Further, instead of such a configuration in which the stirring chamber forming member is provided in a sideways posture, the stirring chamber forming member may be configured to have a vertical posture in which the longitudinal direction thereof is along the vertical direction.

(E) In the above embodiment, as a coating material solution generating device that generates a coating material solution from supplied coating material and supplied water, starch and water are mixed at a set ratio and the starch aqueous solution is sent out. An aqueous solution generation supply unit 15, a quality improvement agent supply unit 16 that stores the quality improvement agent while storing the quality improvement agent, and a starch aqueous solution that is stirred and mixed in the starch aqueous solution generation supply unit 15; While the quality improver supplied from the quality improver supply unit 16 is agitated with the high temperature solution generator 17 which sprays high temperature steam to make a high temperature coating material solution while stirring, It is good also as a structure provided only with any one of the said starch aqueous solution production | generation supply part 15 and the said quality improver supply part 16 not only.

  Moreover, it is good also as a structure which replaces with the said structure and neither of the said starch aqueous solution production | generation supply part 15 and the said quality improvement agent supply part 16 is provided. That is, in the configuration in which neither the starch aqueous solution generation supply unit 15 nor the quality improver supply unit 16 is provided, the ratio of starch and water set in advance with respect to the coating solution storage tank 30 in the high temperature solution generation unit 17 It is good also as a structure which an operator supplies each of the thing stirred and mixed and the set amount of quality improvement agents by manual work. In this configuration, there is no covering material input portion for supplying the covering material.

(F) The specific configuration of the drying device is not limited to the configuration exemplified in the above embodiment. For example, you may comprise an endless rotation belt or a vibration conveyor type as an installation conveyance part mentioned above.

Block diagram showing the overall structure of washing-free rice production equipment Front view of washing-free rice production unit Plan view of washing-free rice production unit Side view of the area where the machine is installed The figure which shows the structure of a starch aqueous solution production | generation supply part and a quality improvement agent supply part. Side view of agitating and conveying machine Diagram showing rice grain outlet Diagram showing clamp member Cross section of agitating and conveying machine Explanatory drawing showing the disassembled state of the agitating and conveying machine Explanatory drawing showing the disassembled state of the agitating and conveying machine The figure which shows the opening formation part of drying equipment Vertical side view of spray nozzle Cross-sectional plan view of spray nozzle The figure which shows the structure of the nozzle for spraying of another embodiment. The figure which shows the structure of the nozzle for spraying of another embodiment. Sectional drawing of the agitation conveyance machine of another embodiment

Explanation of symbols

52 Stirring chamber forming member 53 Rice grain inlet 54 Rice grain outlet 55 Stirring conveying means 56 Coating material solution supplying means 60 Coating material supply port 100 Nozzle for spraying 102, 102a, 102b Air ejection hole 103 Coating material solution ejection hole E Air ejection part F Covering material solution ejection part

Claims (2)

A cylindrical stirring chamber forming member and the rice grains provided inside the stirring chamber forming member and received in the stirring chamber forming member from the rice grain receiving port in the longitudinal direction of the stirring chamber forming member Rice grains coated on the rice grains conveyed inside the agitating chamber forming member through the agitating and conveying means to be discharged from the outlet and the coating material supply port formed at a position closer to the lower side of the rice grain conveying direction than the rice grain receiving port The rice grain coating apparatus is provided with a coating material solution supply means for supplying a coating material solution for use, and is configured to coat the rice grain material conveyed inside the stirring chamber forming member with the coating material solution Because
The coating material solution supply means includes
From the air ejected from the air ejection section and the coating material solution ejection section, comprising an air ejection section for ejecting the supplied air and a coating material solution ejection section for ejecting the supplied coating material solution The coating material solution to be ejected is mixed and the coating material solution is atomized, and the atomized coating material solution is supplied to the rice grains conveyed inside the stirring chamber forming member. A rice grain coating apparatus configured to do. The said coating material solution supply means is provided with the nozzle for spraying in which each of the air ejection hole as said air ejection part and the coating material solution ejection hole as said coating material solution ejection part was formed. The rice grain coating apparatus as described.

Images