JP6260895B2 - Additive addition device and additive addition method - Google Patents

Description

  The present invention relates to an additive material adding apparatus and an additive material for adding an additive material to a material to be added at a desired ratio when an additive material such as steelmaking slag is mixed with the material to be added such as clay. It relates to an addition method.

  Conventionally, calcia-modified soil, which is made by improving strength of dredged materials and other additives by mixing steelmaking slag produced as a by-product during the steel refining process with dredged materials and other materials, has been developed as a ground material, tidal flat and shallow ground. A method of using it as a civil engineering material such as wood has been proposed (see, for example, Patent Document 1, paragraph 0035).

  In order to mix steelmaking slag with the additive such as clay, a method of adding the additive at a desired ratio to the additive and forcibly mixing it using a mixing device such as a mechanical mixer, In-pipe mixing method, etc. is known in which steelmaking slag added to a material to be added, such as clay, is pneumatically fed and agitated and mixed using the turbulent flow effect of the plug flow generated in the feed pipe. It has been.

  In addition, as a method of mixing two substances in a simple and large amount, the additive to which the additive is added at the desired ratio is moved while connecting between the belt conveyors, and the drop energy at the time of connecting is utilized. A method of mixing an additive with a substance by doing so is also known (see, for example, Non-Patent Document 1).

  On the other hand, as a method of adding steelmaking slag at a desired ratio to the additive such as clay, the additive such as clay moving at a constant speed on a belt conveyor for transferring the additive such as clay. On the other hand, there is known a method in which an additive is dropped onto an additive to be added on the belt conveyor by a predetermined amount from an additive supply means arranged above the belt conveyor.

  Further, as shown in FIG. 10, additive material supply means cuts out additive material B from a hopper 101 having a feeder capable of adjusting the discharge amount arranged on the belt conveyor 100 at regular intervals, and uses the additive material B as the additive material. The material is transferred by the supply belt conveyor 102 and dropped from the end of the additive material supply belt conveyor 102 toward the additive A moving on the belt conveyor 100. There is a method of cutting out and dropping the cut out additive directly onto the belt conveyor (see, for example, Patent Document 2, FIG. 1 and the like).

JP 2009-121167 A JP 2002-205041 A Pre-mixing treatment method technical manual (revised version) Coastal Technology Research Center, December 2008, p. 61

  However, in the conventional technology as described above, depending on the dispersion state of the additive with respect to the additive when the additive such as steelmaking slag is added to the additive such as clay, the subsequent mixing depends on the state of initial stirring. There is a possibility of affecting the work efficiency and the quality of the mixture, and it is desirable that the additive such as steelmaking slag is uniformly dispersed and distributed with respect to the additive such as clay during the initial stirring at the time of addition.

  In particular, in the mixing method using the energy dropped during belt conveyor transfer, there is a risk that a sufficiently mixed state may not be obtained if an additive such as steel slag is added to the additive such as clay. there were.

  On the other hand, the distribution of additives such as steelmaking slag with respect to the additive such as dredged material depends on the additive material dropping width of the additive adding device, so the additive material dropping of the additive adding device compared to the belt width of the belt conveyor When the width, that is, the belt width of the additive material supply belt conveyor or the hopper cut-out port width is narrow, the additive material is distributed unevenly toward the center or one side of the belt width direction of the additive to be moved on the belt conveyor. There was a problem of doing.

  In addition, when the additive is dredged material having a high water content ratio, when the additive is dropped on the belt conveyor from the additive supply means, the dropped additive becomes a wall and causes the additive to flow backward. There is a risk that the additive will be bounced off due to a drop impact at the time of dropping.

  In view of such a conventional problem, the present invention is an additive that can be suitably added in a state in which an additive such as steelmaking slag is evenly dispersed with respect to an additive such as clay moving on a belt conveyor. The object is to provide a material addition device and a method for adding the additive.

  The feature of the invention according to claim 1 for solving the conventional problems as described above is that a rotary feeder disposed above a belt conveyor and an additive supply for dropping the additive toward the rotary feeder The rotary feeder has a plurality of blades projecting from the outer peripheral portion of the rotating shaft in the direction of the rotation radius, and the additive material can be accommodated between the blades in a certain amount. An impeller-shaped supply rotating body in which a plurality of cutout portions are formed, and a power unit that rotates the supply rotary body, and is accommodated in each cutout portion as the supply rotation body rotates. In the additive material addition apparatus, the fixed amount of the additive material is dropped onto the additive material that moves on the belt conveyor, and the additive material is added to the additive material at a desired ratio. Type feeder is the rotating shaft of the supply rotating body Is arranged in parallel with the belt width direction of the belt conveyor, and is provided with a dispersion inclined body inclined in the rotation axis direction so that the inclination is different between the cutting parts adjacent to each other at the inner bottom part of each cutting part, The additive material adding apparatus is configured such that the additive materials dispersed in different directions in the rotation axis direction by the cutout portions adjacent to each other are sequentially dropped onto the additive to be moved on the belt conveyor.

  According to a second aspect of the present invention, in addition to the configuration of the first aspect, as the dispersion inclined body, a right inclined dispersion inclined body that is inclined so as to be lowered toward one end side in the rotation axis direction of the cutout portion. And a left-tilting dispersion slant that is inclined toward the other end side in the rotation axis direction of the cut-out portion, and a combination of the right-tilting dispersion slant and the left-tilt dispersion slant from both ends. It is provided with an uneven-type dispersion inclined body that is inclined so as to descend toward the inside or descend toward both ends from the top on the inside.

  According to a third aspect of the present invention, in addition to the configuration of the second aspect, the right-tilting dispersion sloping body, the left-tilting dispersion sloping body, and the uneven-type dispersion sloping body are each in a desired order in the circumferential direction. The cutout unit is provided so as to be repeatedly arranged.

  According to a fourth aspect of the present invention, in addition to the structure of any one of the first to third aspects, the power means abuts against the belt surface of the belt conveyor and rotates in conjunction with the movement of the belt. And a transmission means for transmitting the rotation of the power transmission rotating body to the supply rotating body.

  According to a fifth aspect of the present invention, in addition to the configuration of any one of the first to fourth aspects, the rotary feeder is configured such that an outer periphery of the supply rotating body is close to a belt surface of the belt conveyor. It is in having been arranged.

  According to a sixth aspect of the present invention, in addition to the configuration of the fifth aspect, the rotary feeder includes movable support means for movably supporting the supply rotating body with respect to the surface of the belt conveyor. It is in.

  A feature of the invention described in claim 7 is that a plurality of cutout portions capable of accommodating the additive material in a certain amount are formed between a plurality of blades protruding in the rotation radius direction on the outer peripheral portion of the rotating shaft. A rotary feeder having an impeller-shaped supply rotating body is disposed above the belt conveyor, and the additive material supplied to the rotary feeder by cutting the supply rotating body is cut out at a constant amount; In the method of adding an additive that drops the additive on the belt conveyor and adds the additive to the additive in a desired ratio, the rotary feeder is connected to the rotating shaft of the supply rotating body. Are arranged so as to be parallel to the belt width direction of the belt conveyor, and a dispersive inclined body inclined in the rotation axis direction so that the inclination is different between the adjacent cutout parts is included in each of the cutout parts. The additive material is housed in each of the cutout portions, and the cutout portions adjacent to each other are dispersed with different distributions in the direction of the rotation axis. In the method of adding an additive, the additive dispersed in a different distribution is dropped onto an additive to be sequentially moved on a belt conveyor, and the additive is dispersed in the additive.

  According to an eighth aspect of the present invention, in addition to the configuration of the seventh aspect, as the dispersion inclined body, a right inclined dispersion inclined body inclined so as to be lowered toward one end side in the rotation axis direction of the cutout portion. And a left-tilting dispersion slant that is inclined toward the other end side in the rotation axis direction of the cut-out portion, and a combination of the right-tilting dispersion slant and the left-tilt dispersion slant from both ends. An uneven-type dispersion inclined body that is inclined so as to descend toward the inner side or toward both ends from the inner top part, and the additive material extends over the belt width over the belt width. A belt-like right-side addition portion that is densely distributed on the right side of the direction and is distributed so as to become rougher toward the left side, and the additive material extends in the belt width direction across the belt width of the article to be added. It is densely distributed on the left side and minutes as you move to the right side. A belt-like left-side addition portion added to become rough, and the additive material is distributed densely on the center side in the belt width direction over the belt width and distributed as it goes to both ends. And forming a belt-like centrally added portion added in a rough state continuously in a desired order.

  According to a ninth aspect of the present invention, in addition to the configuration of the seventh or eighth aspect, the rotary feeder is arranged so that an outer periphery of the supply rotating body is close to a belt surface of the belt conveyor. In addition to adding the additive in the cutout portion to the additive on the belt conveyor by the rotation of the supply rotating body, the additive to which the additive is added is pushed out by the blade plate.

  A feature of the invention described in claim 10 is that, in addition to the configuration of any one of claims 7 to 9, the supply rotating body is rotated in synchronization with the moving speed of the belt conveyor.

  As described above, the additive material adding apparatus according to the present invention includes a rotary feeder disposed above the belt conveyor, and an additive material supply means for dropping the additive material toward the rotary feeder, and the rotation The type feeder has a plurality of blades projecting in the direction of the rotation radius on the outer peripheral portion of the rotating shaft, and a plurality of cutout portions capable of accommodating the additive material in fixed amounts are formed between the blade plates. An impeller-shaped supply rotating body, and a power means for rotating the supply rotating body, and the predetermined amount of addition accommodated in each of the cutout portions as the supply rotating body rotates. In the additive material addition apparatus, the material is dropped onto the additive to be moved on the belt conveyor, and the additive is added to the additive in a desired ratio. Rotating body rotation shaft Are arranged so as to be parallel to the belt width direction of the belt, and each of the cutout portions adjacent to each other is provided with a dispersion inclined body inclined in the rotation axis direction so that the inclination is different from each other at the cutout portions adjacent to each other. The additive material dispersed with different distribution in the rotation axis direction by each part is sequentially dropped onto the additive to be moved on the belt conveyor, thereby cutting out the additive such as clay. The distribution of the additive material such as the steelmaking slag is distributed in the belt width direction for each part, and the additive material such as the steelmaking slag can be added uniformly over the entire width in the belt width direction as a whole.

  Further, in the present invention, as the dispersion inclined body, a right-tilt type dispersion inclined body inclined so as to descend toward one end side in the rotation axis direction of the cutout portion, and the other end side in the rotation axis direction of the cutout portion. A left-tilting dispersion slant that is inclined toward the bottom, and a combination of the right-tilting dispersion slant and the left-tilting dispersion slant so as to be inward from both ends, or both ends from the inner top. By providing the uneven-type dispersion inclined body inclined downward toward the side, the distribution of the additive material in the cutout portion can be suitably distributed in the direction of the rotation axis.

  Further, in the present invention, the cut-out part is provided so that the right-tilting dispersion sloping body, the left-tilting dispersion sloping body, and the uneven-type dispersion sloping body are repeatedly arranged in a desired order in the circumferential direction. As a result, the additive can be suitably and uniformly added to the additive.

  Also, in the present invention, the power means abuts on the belt surface of the belt conveyor and rotates in conjunction with the movement of the belt, and rotates the power transmission rotating body. Since the transmission means for transmitting to the rotary body for use is provided, the addition work can be performed efficiently without requiring separate power.

  In the present invention, the rotary feeder is disposed so that the outer periphery of the supply rotating body is close to the belt surface of the belt conveyor, so that the additive is made of high water content soil such as dredged soil. Even if it is a case, while being able to add an additive suitably, preventing the backflow and rebound of an additive, a high initial stirring effect can be acquired.

  Further, in the present invention, the rotary feeder is provided with movable support means for movably supporting the supply rotating body with respect to the surface of the belt conveyor, whereby obstacles such as stones and the like are added on the belt conveyor together with the additive. Even when an object flows down, the obstacle can be avoided by overcoming the obstacle, and the apparatus can be prevented from being damaged or interrupted.

  In addition, as described above, the method for adding an additive according to the present invention can accommodate the additive in a certain amount between a plurality of blades protruding in the rotational radius direction on the outer peripheral portion of the rotating shaft. A rotary feeder having an impeller-shaped supply rotating body in which a plurality of cutout portions are formed is disposed above a belt conveyor, and an additive supplied to the rotary feeder by the rotation of the supply rotating body In the method of adding an additive material, which is cut out at a fixed amount and dropped onto an additive material that moves on the belt conveyor, and the additive material is added to the additive material at a desired ratio, the rotary feeder is Distributing slopes in which the rotation axis of the supply rotating body is arranged so as to be parallel to the belt width direction of the belt conveyor, and the inclination is different in the rotation axis direction so that the respective cutting portions adjacent to each other have different inclinations. Is provided at the inner bottom of each cutout portion, and the additive is accommodated in each cutout portion so that the cutout portions adjacent to each other have different distributions in the rotation axis direction and are distributed, The additive material dispersed with different distribution in the rotation axis direction by rotation is dropped onto the additive to be moved on the belt conveyor sequentially, and the additive material is dispersed with respect to the additive, thereby making the clay The distribution of the additive material such as steelmaking slag is distributed in the belt width direction for each cut out portion, and the additive material such as steelmaking slag as a whole is spread over the entire width in the belt width direction. Can be added evenly.

  Further, in the present invention, as the dispersion inclined body, a right-tilt type dispersion inclined body inclined so as to descend toward one end side in the rotation axis direction of the cutout portion, and the other end side in the rotation axis direction of the cutout portion. A left-tilting dispersion slant that is inclined toward the bottom, and a combination of the right-tilting dispersion slant and the left-tilting dispersion slant so as to be inward from both ends, or both ends from the inner top. An uneven-type dispersion inclined body inclined downward toward the side is used, and the additive is densely distributed on the right side in the belt width direction over the belt width and proceeds to the left side. A belt-like right-side addition portion added to a state where the distribution becomes coarse as the distribution increases, and the additive material is densely distributed on the left side in the belt width direction over the belt width and distributed as it progresses to the right side. Band added in a rough state And a band-like shape in which the additive material is densely distributed on the center side in the belt width direction and the distribution becomes coarse as it goes to both ends. The distribution of the additive material is appropriately distributed in the direction of the rotation axis, and the additive material is uniformly distributed to the additive as a whole and uniformly. Can be added.

  Further, in the present invention, the rotary feeder is disposed so that the outer periphery of the supply rotating body is close to the belt surface of the belt conveyor, and the additive in the cutout portion is rotated by the rotation of the supply rotating body. Is added to the additive on the belt conveyor, and the additive to which the additive is added is extruded by the blade plate, so that the additive is added even if the additive is a clay with a high water content. An additive can be suitably added while preventing backflow and rebounding.

  Moreover, in this invention, an additive can be added to a predetermined range of a to-be-added material by a predetermined ratio by rotating the said supply rotary body synchronizing with the moving speed of the said belt conveyor.

(A) is a longitudinal cross-sectional view which shows the outline of the additive addition apparatus which concerns on this invention, (b) is the same front view. (A) The side view which shows an example of the rotary body for supply in FIG. 2, (b) is the same front view. (A) is the sectional view on the aa line in FIG. 2, (b) is the sectional view on the bb line, (c) is the sectional view on the cc line. It is a schematic plan view for demonstrating the addition method of the additive which concerns on this invention. (A) is a longitudinal cross-sectional view which shows the outline of another example of the additive addition apparatus which concerns on this invention, (b) is the same front view. It is a partial expansion schematic base view for demonstrating the addition method of the additive which uses the apparatus same as the above. It is a schematic plan view same as the above. It is a side view which shows the outline of another example same as the above. It is a side view which shows the outline of another example same as the above. (A) is a longitudinal cross-sectional view which shows the outline of the conventional additive addition apparatus, (b) is the same front view.

  Next, a first embodiment of an additive material addition apparatus and an additive material addition method using the same according to the present invention will be described based on the examples shown in FIGS.

  In the figure, reference numeral 1 denotes a belt conveyor for transferring an additive A installed on a base 2 such as a deck of a landing ship (reclaimer ship), and reference numeral 3 denotes dredging that moves on the belt conveyor 1. It is an additive addition device for adding additive B such as steelmaking slag to the additive A at a desired ratio.

  The additive material adding device 3 includes a rotary feeder 4 disposed above the belt conveyor 1, and an additive material supply means 5 for dropping the additive material B such as steelmaking slag onto the rotary feeder 4. The additive B such as steelmaking slag is added at a desired ratio to the additive A such as clay moving at a constant speed.

  To the belt conveyor 1, an additive A such as clay is cut out from the hopper (not shown) having a feeder whose discharge amount can be adjusted, and the like, and is sequentially supplied, and the additive B at a desired ratio. The additive A to which is added is dropped from the end of the belt conveyor 1 to the inlet 6 to the mixing means or the like.

  The additive supply means 5 includes a hopper 7 having a feeder capable of adjusting the discharge amount, and an additive transfer belt conveyor 8 for transferring the additive B cut out from the hopper 7 to above the rotary feeder 4; The additive is transferred to the rotary feeder 4 disposed at a desired height below the end of the belt conveyor 8 for transferring the material.

  The additive supply means 5 is not limited to the above-described configuration, and the hopper 7 is arranged above the rotary feeder 4 at a desired height, and the additive B is directly applied to the rotary feeder 4 from the hopper 7. You may make it drop.

  In this embodiment, the additive material dropping width of the additive material supply means 5, that is, the belt width of the additive material transfer belt conveyor 8 or the cutout width of the hopper 7 is narrower than the belt width of the belt conveyor 1. Assume the case.

  The rotary feeder 4 includes an impeller-like supply rotating body 10 and power means for rotating the supply rotating body 10, and the rotation shaft 11 of the supply rotating body 10 is arranged in the belt width direction of the belt conveyor 1. The supply rotating body 10 is disposed so as to be parallel to each other, and is placed so as to be positioned immediately below the terminal end of the additive material transfer belt conveyor 8 of the additive material transfer means 5 of the additive material supply means 5.

  The supply rotator 10 includes a rotary shaft 11 that is rotatably supported at a desired distance from the belt conveyor 1, and a plurality of blades that project from the outer peripheral portion of the rotary shaft 11 toward the rotational radius direction. And a plurality of cutout portions 13A, 13B, 13C,... Capable of accommodating the additive material B for each fixed amount.

  For example, as shown in FIG. 1B, the rotary shaft 11 is a pair of bearing members 14 erected on a base portion 2 such as a reclaimer ship deck on which the belt conveyor 1 is installed at intervals in the belt width direction. , 14 are pivotally supported at both ends, and are supported in parallel with the belt conveyor 1 at a desired interval.

  One end of the rotating shaft 11 is directly connected to a drive shaft of a power source 15 such as an electric motor constituting power means, and is rotated by the power source 15.

  The power means is not limited to the above-described example, and a rotating power transmission rotating body that contacts the belt surface of the belt conveyor 1 and rotates in conjunction with the movement of the belt and a rotation of the power transmitting rotating body is supplied. A transmission means for transmitting to the rotating body 10 for rotation, and a structure for rotating the rotating body 10 for supply in conjunction with the movement of the belt of the belt conveyor 1.

  Each of the blades 12, 12... Is formed in a rectangular flat plate shape whose length in the rotation axis direction is substantially the same as or slightly shorter than the belt width of the belt conveyor 1, and the short direction is directed to the rotation radius direction. The outer periphery of the rotating shaft 11 is fixed at equal intervals in the rotational direction, the periphery of the rotating shaft 11 is partitioned, and the cutout portions 13A, 13B, 13C,. The

  In the figure, reference numeral 16 denotes an end plate that is arranged at an interval in the axial direction of the rotary shaft 11 and closes both ends of the cutout portions 13A, 13B, 13C.

  In addition, the inner bottom portions of the cutout portions 13A, 13B, 13C,... Are respectively provided with dispersion inclined bodies 17A, 17B, 17 that are inclined in the rotation axis direction so that the inclinations of the cutout portions adjacent to each other are different. Further, the additive B dispersed with different distributions in the rotation axis direction by mutually adjacent cutout portions is sequentially added to the additive A moving on the belt conveyor 1 as the supply rotating body 10 rotates. It has become.

  As the dispersion slant, a right slanting dispersion slant 17A shown in FIG. 3A, a left slanting dispersion slant 17B shown in FIG. 3B, and a concavo-convex dispersion slant shown in FIG. 3C. As shown in FIG. 2 (a), the right tilting dispersion slant body 17A, the left slanting dispersion slant body 17B, and the concave / convex dispersion slant body 17C are arranged in a desired order (this embodiment). In the example, the cutout portions 13A, 13B, 13C,... Are arranged so as to be repeatedly arranged in the clockwise direction in the drawing in the clockwise direction, the left-inclined type, and the concave-convex type in this order.

  The right-inclined dispersion inclined body 17A is formed in a shape inclined so as to descend toward one end in the rotation axis direction of the cutout portion 13A, that is, the right end side in FIG. 17B is formed in a shape that is inclined so as to be lowered toward the other end side in the rotation axis direction of the cutout portion 13B, that is, toward the left end portion, and the concave / convex-type dispersion inclined body 17C is provided so as to be lowered inward from both ends. Is formed.

  In addition, the inclination of each dispersion | distribution inclination body 17A, 17B, 17C is set so that each accommodating part of each cutout part 13A, 13B, 13C ... may become the same, and the rotation body for supply which rotates at fixed speed | rate By dropping the additive B from the additive supply means 5 to 10, the dropped additive B is accommodated in each of the cutout portions 13A, 13B, 13C... Accordingly, the additive B accommodated in each of the cutout portions 13A, 13B, 13C... Is sent out onto the belt conveyor 1.

  Next, the addition method of the additive B using the additive addition apparatus 3 comprised in this way is demonstrated.

  First, the additive A such as clay cut out every certain amount is put on the belt conveyor 1, and the transfer of the additive A such as clay by the belt conveyor 1 is started.

  The additive A is transported at a constant speed on the belt conveyor 1, and the additive B (steel slag, etc.) is added to the additive A such as clay to be transferred. It adds with the desired ratio from the addition apparatus 3. FIG.

  In order to add the additive B, the supplying rotating body 10 is rotated at a constant speed synchronized with the speed of the belt conveyor 1 by the power means, and the additive feeder B is sequentially supplied to the rotary feeder 4 from the additive supplying means 5. The additive material B is dropped, and the additive material B is cut out by the cutout portions 13A, 13B, 13C... In accordance with the rotation of the supply rotating body 10, and belts are cut from the cutout portions 13A, 13B, 13C. It is added to the surface of the additive A moving on the conveyor 1.

  In order to cut out the dropped additive material B by a predetermined amount, first, as the supply rotating body 10 rotates, the cutout portion 13A (here, for the sake of convenience, a right-tilt type dispersion at the bottom is provided immediately below the dropping track of the additive supply means 5). The cut-out portion 13 </ b> A provided with the inclined body 17 </ b> A is moved), and the additive B falls there.

  At that time, the additive B is received by the supply rotating body 10, that is, the inclined surface of the right-inclined dispersion inclined body 17A at the inner bottom of the cutout portion 13A by receiving the additive B dropped with a dropping width narrower than the belt width. In addition, it is dispersed outward in the rotation axis direction in the cut-out portion 13A due to the falling energy, is densely distributed on the right side due to the inclination of the right-tilt-type dispersion inclined body 17A, and the distribution becomes rough as it goes to the left side (hereinafter, (Referred to as rightward dispersion state)

  Then, by rotating the supply rotator 10 in this state, the cutout portion 13A moves to the belt conveyor 1 side, and the additive B is cut out in the cutout portion 13A in a constant amount and rightward dispersion state (rightward cutout step). ).

  Next, along with the rotation of the supplying rotator 10, the cutout portion 13A in which the additive B is accommodated in a constant amount and in the right-side dispersed state rotates and moves to the belt conveyor 1 side, and the next cutout portion 13B, that is, the bottom portion Then, the cut-out part 13B provided with the left-tilt-type dispersion inclined body 17B moves immediately below the dropping track of the additive supply means 5.

  At that time, additive material B dropped with a dropping width narrower than the belt width is received by the inclined surface of the left-inclined dispersion inclined body 17B at the bottom of the cut-out portion 13B, so that the additive B is dropped into the cut-out portion 13B by the drop energy. In the direction of the rotation axis, and is distributed to the left side due to the inclination of the left-tilt-type dispersion inclined body 17B, and the distribution becomes coarse as it goes to the right side (hereinafter referred to as a left-side dispersion state). 13B.

  Then, by rotating the supply rotator 10 in this state, the cutout portions 13A and 13B move to the belt conveyor 1 side, and the additive B is cut out in a fixed amount and leftward dispersion state in the cutout portion 13B (leftward shift). Cutting process).

  Next, along with the rotation of the supplying rotator 10, the cutout portion 13A in which the additive material B is accommodated in a constant amount and in the right side dispersion state and the cutout portion 13B in which the additive material B is accommodated in a constant amount and the left side dispersion state are belts. While rotating to the conveyor 1 side, the next cutout portion 13 </ b> C, that is, the cutout portion 13 </ b> C provided with the uneven-type dispersion inclined body 17 </ b> C at the bottom moves to the position just below the dropping track of the additive supply means 5.

  At that time, the additive material B dropped with a drop width narrower than the belt width is received by the inclined surface of the concavo-convex-type dispersion inclined body 17C in the bottom portion of the cutout portion 13C, so that the additive material B is dropped into the cutout portion 13C by the drop energy. In the direction of the rotation axis, and is distributed densely on the center side due to the inclination of the concavo-convex-type dispersion inclined body 17C, and the distribution becomes coarser toward both ends (hereinafter referred to as a center-side dispersion state). Is accommodated in the cutout part 13C.

  When the supply rotating body 10 rotates in this state, the cutout portions 13A, 13B, and 13C move to the belt conveyor 1 side, and the additive B is cut out in the cutout portion 13C in a constant amount and in a distributed state near the center ( Center cutting step).

  Then, along with the rotation of the supplying rotator 10, a cutout part 13A in which the additive B is accommodated in a constant amount and in a rightward dispersion state, a cutout part 13B in which the additive B is accommodated in a constant and leftward dispersion state, and a constant amount In addition, the cutout portion 13C in which the additive B is accommodated in a state of dispersion toward the center rotates and moves to the belt conveyor 1 side, and the next cutout portion 13A provided with a right-tilt-type dispersion inclined body 17A at the bottom is the additive supply means 5 The right cutout process, the left cutout process, and the center cutout process are sequentially repeated.

  On the other hand, the additive B cut out by each of the above cutting steps moves to the belt conveyor 1 side with the rotation of the supply rotating body 10 and the cutting portions 13A, 13B, 13C of the cutting portions 13A, 13B, 13C. When the opening side is directed to the belt conveyor 1 side, as shown in FIG. 4, it is sequentially added to the additive A such as clay moving on the belt conveyor 1 from the cutout portions 13A, 13B, and 13C.

  More specifically, the first cutout portion 13A (here, for the sake of convenience, the cutout portion 13A in which the additive B is accommodated in a constant amount and in a rightward dispersion state) is rotated along with the rotation of the supply rotating body 10. It moves to the conveyor 1 side, and the opening of the cutout portion 13A is directed to the lower side, that is, the belt conveyor 1 side, so that the additive material B in the right-side dispersed state in the cutout portion 13A moves on the belt conveyor 1 It falls by its own weight on the surface of the additive A such as soil.

  At that time, since the transfer speed of the belt conveyor 1 and the rotation speed of the supply rotator 10 are synchronized, the additive B is applied to the surface of the article A to be added across the belt width. That is, a band-like right-side addition portion DR1 is formed which is densely distributed on the right side and is added in a state where the distribution becomes coarser toward the left side.

  Subsequently, with the rotation of the supply rotating body 10, the next cutout portion 13B, that is, the cutout portion 13B in which the additive B is accommodated in a constant amount and in a leftward dispersion state moves to the belt conveyor 1 side, and the cutout portion 13B The surface portion of the additive A, such as clay, in which the additive B in the left-side dispersed state in the cut-out portion 13B moves on the belt conveyor 1 is directed to the lower side, that is, the belt conveyor 1 side. The additive B is densely distributed on the other end side in the belt width direction, that is, the left side over the belt width on the surface portion of the article A to be added, and the distribution becomes rougher as it goes to the right side. The belt-like left addition portion DL1 added to the state is formed continuously with the right addition portion DR1.

  Further, along with the rotation of the supply rotating body 10, the next cutout portion 13C, that is, the cutout portion 13C in which the additive B is accommodated in a constant amount and in a centrally distributed state moves to the belt conveyor 1 side, and the cutout portion 13C Of the additive A, such as clay, in which the additive B in the dispersed state near the center in the cutout portion 13C moves on the belt conveyor 1 while being rotated toward the lower side, that is, the belt conveyor 1 side. A belt-like shape in which the additive B is densely distributed on the center side in the belt width direction over the belt width on the surface portion of the article A to be added, and the distribution becomes rough as it goes to both ends. The center addition part DM1 added to the right side is formed continuously with the right addition part DR1 and the left addition part DL1.

  As the supply rotator 10 rotates, the additive B in the right-side dispersed state, the left-side dispersed state, and the center-side dispersed state sequentially from the cutout portions 13A, 13B, 13C. The right addition part DR1, the left addition part DL1, and the center addition part DM1 are sequentially and repeatedly formed, and the additive B is added to the additive A at a desired ratio.

  In addition, the additive material B, which is distributed with different distributions in the rotation axis direction at the cut-out portions adjacent to each other, is dropped onto the additive A moving on the belt conveyor 1 in sequence, and the additive B is added to the additive A. As a whole, the additive B such as steelmaking slag is distributed in a uniformly dispersed state with respect to the additive A such as clay, and the subsequent mixing is efficiently performed to produce a high quality mixed product. In particular, a great effect is exhibited in the mixing method using the drop energy at the time of connecting the belt conveyor.

  Next, the 2nd embodiment of the addition material addition apparatus concerning this invention and the addition method of the addition material B which uses it is demonstrated based on the Example shown in FIGS. In addition, the same code | symbol is attached | subjected to the structure similar to the above-mentioned Example, and description is abbreviate | omitted suitably.

  Further, in the present embodiment, an example will be described in which a clay having a high water content is used as the additive A and the additive B made of steel slag is added to the additive A having a high water content.

  The water content ratio of the additive A made of kneaded clay is adjusted by a water content ratio adjusting means made of a water adding device, and the water content ratio of the additive A is 1.1 to 1.8 times the liquid limit (wL). In addition, the state where the additive A made of clay has an appropriate viscosity and fluidity, specifically, the flow value by the cylinder flow test (JHS A 313) is adjusted to be 81 to 350 mm.

  The additive B made of steelmaking slag has a large disturbance effect in the clay when the particle size is somewhat large and heavy. For example, the particle size is 10 mm to 25 mm, the surface dry density is about 3.0, and the bulk specific gravity is about 3.0. It is preferable that 20% or more of 2.0 is contained in the entire steelmaking slag.

  The additive material addition device 3 includes a rotary feeder 20 disposed above the belt conveyor 1, and an additive material supply means 5 that drops the additive material B such as steelmaking slag on the rotary feeder 20. The additive B such as steelmaking slag is added to the additive A such as clay moving at a constant speed at a desired ratio (10 to 40 vol%).

  The belt conveyor 1 and the additive supply means 5 have the same configuration as that of the first embodiment shown in FIGS. 1 to 4 described above, and the same reference numerals are given here and description thereof is omitted.

  The rotary feeder 20 includes an impeller-like supply rotating body 10 and power means for rotating the supply rotating body 10, and the rotation shaft 11 of the supply rotating body 10 is arranged in the belt width direction of the belt conveyor 1. The supply rotator 10 is arranged in parallel, and the supply rotator 10 is immediately below the end of the additive material transfer belt conveyor 8 of the additive supply means 5, here, the additive transfer belt conveyor 8. The outer periphery is disposed so as to be close to the belt surface of the belt conveyor 1.

  The supplying rotator 10 is configured in the same manner as that shown in FIGS. 2 and 3 described above, and has a plurality of blades 12, 12 that protrude from the outer peripheral portion of the rotating shaft 11 toward the rotational radius direction. , And a plurality of cutout portions 13A, 13B, 13C... Capable of accommodating the additive material B for each fixed amount are formed between the blades 12 and 12.

  Further, each of the cutout portions 13A, 13B, 13C... Has a dispersion slant that is inclined in the direction of the rotation axis so that the cutout portions adjacent to each other at the inner bottom portions thereof have different inclinations, that is, FIG. 2A, a left-inclined dispersion inclined body 17B shown in FIG. 3B, and an uneven-type dispersion inclined body 17C shown in FIG. 3C, as shown in FIG. 2A. In addition, the right-tilt type dispersion slant body 17A, the left-tilt type dispersion slant body 17B, and the concave-convex type dispersion slant body 17C are arranged in a desired order (in this embodiment, the right-tilt type, the left-tilt type, the concave-convex pattern in the clockwise direction in the rotation circumferential direction). The cutout portions 13A, 13B, 13C,... Are arranged so as to be repeatedly arranged in the order of the molds.

  As shown in FIG. 5B, the rotary shaft 11 is a pair of bearing members 21 and 21 erected on a base portion 2 such as a reclaimer ship deck on which the belt conveyor 1 is installed at intervals in the belt width direction. Both ends are pivotally supported on the belt conveyor 1 and arranged in parallel with a predetermined interval with respect to the belt conveyor 1, that is, with a spacing substantially equal to or slightly wider than the rotational radial direction (short direction) length of the blades 12, 12. It is supported by.

  The rotary shaft 11 is directly connected to a drive shaft of a power source 15 such as an electric motor that constitutes a power means, and is rotated by the power source 15.

  Therefore, the rotating body 10 for supply is arranged in a state where the outer peripheral portion thereof is close to the belt surface of the belt conveyor 1, and the additive such as clay that the lower end portion of the rotating body 10 for supply moves on the belt conveyor 1. The blades 12, 12... Function as a paddle by the rotation of the supply rotating body 10, and the additive B in the cutout portions 13 A, 13 B, 13 C. Is pushed while preventing backflow and rebound of the additive A, and the additive A to which the additive B is added is pushed out by the blades 12, 12.

  Next, the addition method of the additive B using the additive addition apparatus 3 comprised in this way is demonstrated.

  First, the additive A such as clay cut out every certain amount is put on the belt conveyor 1, and the transfer of the additive A such as clay by the belt conveyor 1 is started.

  The additive A is transported on the belt conveyor 1 at a constant speed and at a constant speed, and the steel additive slag is added to the additive A consisting of a certain amount of the transferred clay at a predetermined ratio from the additive adding device 3. Additive material B consisting of

  In order to add the additive B, the supply rotating body 10 is rotated at a constant speed synchronized with the speed of the belt conveyor 1 by the power means, and the additive feeder 5 is sequentially supplied to the rotary feeder 20 from the additive supply means 5. Additive material B is dropped, and the additive material B is cut into a predetermined amount for each of the cutout portions 13A, 13B, 13C... With the rotation of the supply rotating body 10, and belts are cut out from the cutout portions 13A, 13B, 13C. Add to the additive A moving on the conveyor 1.

  In the same manner as in the above-described embodiment, the additive B is cut out by sequentially repeating the right-side cutting step, the left-side cutting step, and the center-side cutting step as the supply rotating body 10 rotates. The additive B cut out for each of the cutout portions 13A, 13B, 13C... Is sequentially added to the additive A that moves on the belt conveyor 1.

  At that time, as shown in FIG. 6, since the outer periphery of the supply rotating body 10 is close to the belt surface of the belt conveyor 1 and the lower end portion is located in the additive A, it is added along with the rotation. The blades 12 at the rear of the cutout portions 13A, 13B, 13C... In which the material B is accommodated are fed out in a paddle toward the additive A, and the additive A is cut out at the cutout portions 13A, 13B, While being entrained in 13C ..., the additive B in the cut-out portions 13A, 13B, 13C ... is added to the portion in which the additive A is entrained.

  And with the rotation, the blade 12 at the rear of the cutout portions 13A, 13B, 13C ... in the rotation direction pushes out the additive A to which the additive B is added in the moving direction of the belt conveyor 1, Additive B is added into the additive A.

  Then, by repeating this operation sequentially with the rotation of the supply rotator 10, the additive material B in the right-side dispersed state, the left-side dispersed state, and the center-side dispersed state from each of the cutout portions 13A, 13B, 13C. As shown in FIG. 7, the additive B is densely distributed on the right side in the belt width direction over the belt width and proceeds to the left side as shown in FIG. The belt-like right-side addition part DR2 added to a state where the distribution becomes coarse as the distribution increases, the additive material B is densely distributed on the left side in the belt width direction over the belt width, and progresses to the right side. The additive material B is densely distributed on the center side in the belt width direction over the belt width in the belt-like left-side addition portion DL2 and the material A to be added in a state where the distribution becomes coarse, and proceeds to both end sides. The band is added to the state where the distribution becomes coarse as Are sequentially repeatedly formed inboard added portion DM2 is continuously, additive B is added in the desired proportions in the additive A.

  As a result, the additive B, which is dispersed with different cutout portions adjacent to each other in the circumferential direction in the circumferential direction, is added to the additive A that sequentially moves on the belt conveyor 1, and the additive By dispersing additive B in A, the additive B such as steelmaking slag is distributed in a uniformly dispersed state with respect to the additive A such as clay as a whole, and can be efficiently performed by subsequent mixing. Moreover, it is possible to produce a mixed product with high quality.

  In the present embodiment, the aspect of the rotary feeder 20 is not limited to the above-described configuration, but may include a movable support means 30 that supports the supply rotating body 10 so as to be movable with respect to the surface of the belt conveyor 1. Good.

  For example, as shown in FIG. 8, the movable support means 30 has a base portion 2 such as a reclaimer ship deck portion on which a rotating shaft 11 of a supply rotating body 10 is pivotally supported at one end and a belt conveyor 1 is installed at the other end. The arm portion 32 is rotatably supported via the bearing member 31, and the supply rotating body 10 can move relative to the surface of the belt conveyor 1 by rotating the arm portion 32. . In the figure, reference numeral 33 denotes a power source such as an electric motor, and the rotation of the power source 33 is transmitted to the supplying rotator 10 by the endless belt 34.

  By providing the movable feeder 30 in the rotary feeder 20 as described above, even when an obstacle such as unscheduled stones flows along the belt conveyor 1 together with the additive A such as clay, the supplying rotator 10 is supplied. Can overcome obstacles, preventing damage and stoppage of the device.

  Further, in this embodiment, the mode of the power means is not limited to the above-described embodiment. For example, as shown in FIG. 9, the rotation that contacts the belt surface of the belt conveyor 1 and rotates in conjunction with the movement of the belt. The power transmission rotating body 34 and the transmission means 35 that transmits the rotation of the power transmission rotating body 34 to the supplying rotating body 10 may be provided.

  The transmission means 35 may be, for example, a structure in which the supply rotating body 10 is provided with a pulley 10a, and an endless belt 36 is wound around the rotating power transmission rotating body 34 and the pulley 10a.

  In each of the above-described embodiments, an example in which clay is used as the additive A and steelmaking slag is used as the additive B has been described. However, the additive A and the additive B are not limited thereto.

  In the above-described embodiment, the example in which the rotation speed of the supply rotating body 10 and the transfer speed of the belt conveyor 1 are synchronized has been described. However, the inclination of the belt conveyor 1, the additive A, and the additive B The speed may be adjusted according to the physical properties.

A Additive material B Additive material DR1 Right side addition part DL1 Left side addition part DM1 Center side addition part DR2 Right side addition part DL2 Left side addition part DM2 Center side addition part 1 Belt conveyor 2 Base part 3 Additive material addition device 4 Rotary feeder 5 Addition Material supply means 6 Hopper 7 Hopper 8 Additive transfer belt conveyor 10 Supply rotating body 11 Rotating shaft 12 Blade plate 13A, 13B, 13C Cutout portion 14 Bearing member 15 Power source 16 End plate 17A Right tilt type dispersion tilt body 17B Left tilt Mold dispersion inclined body 17C Concavity and convexity dispersion inclined body 20 Rotary feeder 21 Bearing member 30 Movable support means 31 Arm portion 32 Power source 33 Endless belt 34 Rotating power transmission rotary body 35 Transmission means 36 Endless belt

Claims (10)

A rotary feeder disposed above the belt conveyor, and an additive supply means for dropping the additive toward the rotary feeder,
The rotary feeder has a plurality of blades projecting in the direction of the rotation radius on the outer peripheral portion of the rotating shaft, and a plurality of cutout portions capable of accommodating the additive material for each fixed amount between the blades. An impeller-shaped supply rotating body formed, and power means for rotating the supply rotating body,
Along with the rotation of the supply rotating body, the fixed amount of additive material accommodated in each of the cutout portions is dropped onto an additive to be moved on the belt conveyor, and the additive material is added at a desired ratio. In the additive material adding device adapted to be added to the product,
The rotary feeder is disposed so that the rotation axis of the supply rotating body is parallel to the belt width direction of the belt conveyor;
Provided on the inner bottom portion of each cutout portion with a dispersion inclined body that is inclined in the rotation axis direction so that the inclination is different between the cutout portions adjacent to each other,
The additive material adding apparatus characterized in that the additive materials dispersed in different directions in the rotation axis direction by the cutout portions adjacent to each other are sequentially dropped onto the additive to be moved on the belt conveyor.   As the dispersion inclined body, a right-tilt-type dispersion inclined body that is inclined so as to be lowered toward one end side in the rotation axis direction of the cutout portion, and a lower end toward the other end side in the rotation axis direction of the cutout portion. A combination of an inclined left-tilt-type dispersion slant body and the right-tilt-type dispersion slant body and the left-tilt-type dispersion slant body so as to descend from both ends toward the inside or from the inner top portion toward both ends. The additive-adding device according to claim 1, further comprising an uneven-type dispersion inclined body inclined to the surface.   3. The cutout unit is provided in the cutout unit so that the right-tilting dispersion slant, the left-tilting dispersion slant, and the uneven-dispersion slant are repeatedly arranged in a desired order in the circumferential direction. The additive addition apparatus as described.   The power means is in contact with the belt surface of the belt conveyor and rotates in response to the movement of the belt, and transmits the rotation of the power transmission rotating body to the supply rotating body. The additive addition apparatus according to any one of claims 1 to 3, further comprising a transmission means.   The said rotary feeder is an additive addition apparatus of any one of Claims 1-4 arrange | positioned so that the outer periphery of the said rotary body for supply may adjoin to the belt surface of the said belt conveyor.   The said rotary feeder is an additive addition apparatus of Claim 5 provided with the movable support means which supports the said rotary body for supply so that a movement with respect to the surface of the said belt conveyor is possible. An impeller-like supply rotating body in which a plurality of cutout portions capable of accommodating an additive material for each fixed amount are formed between a plurality of blade plates projecting in the radial direction of rotation on the outer peripheral portion of the rotating shaft. A rotary feeder having a position above the belt conveyor;
The additive material supplied to the rotary feeder by the rotation of the supply rotating body is cut out at a constant amount, dropped onto the additive to be moved on the belt conveyor, and the additive material is fed at a desired ratio. In the method of adding the additive to be added to the additive,
The rotary feeder is disposed so that the rotation axis of the supply rotating body is parallel to the belt width direction of the belt conveyor, and is inclined in the rotation axis direction so that the inclination is different between the cutout portions adjacent to each other. A dispersion inclined body is provided at the inner bottom of each cutout part,
The additive material is housed in each of the cutout portions to disperse the distribution in the rotation axis direction at the cutout portions adjacent to each other, and the distribution in the rotation axis direction is different from each other by the rotation of the supply rotating body. A method for adding an additive comprising: dropping the additive to an additive to be sequentially moved on a belt conveyor, and dispersing the additive in the additive. As the dispersion inclined body, a right-tilt-type dispersion inclined body that is inclined so as to be lowered toward one end side in the rotation axis direction of the cutout portion, and a lower end toward the other end side in the rotation axis direction of the cutout portion. A combination of an inclined left-tilt-type dispersion slant body and the right-tilt-type dispersion slant body and the left-tilt-type dispersion slant body so as to descend from both ends toward the inside or from the inner top portion toward both ends. And using an uneven type dispersion inclined body inclined to
A belt-like right-side addition part added in a state where the additive is densely distributed on the right side in the belt width direction over the belt width, and the distribution becomes coarse as it progresses to the left side,
A belt-like left-side addition part added in a state where the additive is densely distributed on the left side in the belt width direction over the belt width, and the distribution is coarsened toward the right side,
A belt-like centrally added portion in which the additive material is densely distributed on the center side in the belt width direction over the belt width, and is added in a state where the distribution becomes coarse as it goes to both ends. ,
The method for adding the additive according to claim 7, wherein the materials are continuously formed in a desired order.   The rotary feeder is disposed so that the outer periphery of the supply rotating body is close to the belt surface of the belt conveyor, and the additive in the cutout portion is placed on the belt conveyor by the rotation of the supply rotating body. The addition method of the additive material of Claim 7 or 8 which extrudes the to-be-added material which added the said additive material with the said blade board while adding to an additive material.   The method for adding an additive according to any one of claims 7 to 9, wherein the supply rotating body is rotated in synchronization with a moving speed of the belt conveyor.

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