KR20230137541A - Food waste drying equipment - Google Patents

Abstract

The present invention seeks to provide a food waste disposal device for drying food waste and drastically reducing its volume.
That is, the present invention includes a main drying room (10) formed with an inlet (12) that is opened and closed by a cover (11), a lower flow path (13) through which objects to be dried are discharged, and an upper flow path 14 through which wet air is discharged; A heater unit 20 installed on one or more of the bottom and sides of the main drying room 10 and provided to heat the inside of the main drying room 10; A stirring blade 30 installed on the inner floor of the main drying room 10 and rotated by a motor to stir the object to be dried; A filter unit (40) connected to the upper flow path (14) of the main drying room (10) and provided to filter and discharge wet air; and an auxiliary drying unit 60 that has an auxiliary drying room 62 connected to the lower flow path 13 of the main drying room 10, and stores the discharged drying object for secondary drying. .
The use of the food waste treatment device has an improved structure so that the items to be dried first and the items to be dried are dried step by step in separate spaces, so even if the items to be dried are continuously added, the drying time can be shortened and energy efficiency can be maximized. .

Description

Food waste processing equipment {Food waste drying equipment}

The present invention is a food waste treatment device, and to be described in more detail, it relates to a food waste treatment device that can effectively dry food waste in an independent space so that food waste that is dried first is not mixed with food waste with a high water content that is subsequently introduced.

Typically, most of the food waste discharged from homes or restaurants is discarded in a dehydrated state with only the moisture removed. However, even after dehydration, the moisture contained in the food waste itself does not significantly help in reducing the volume, and it produces a strong odor during the collection and transportation process. There is some inconvenience that arises.

In order to improve the inconvenience caused by food waste disposal, some homes and restaurants are applying the grinding method of shredding food waste and discharging it through the sewer. However, this causes serious social problems such as sewer blockage and environmental pollution. The standards for pulverized material discharge according to the use of pulverizers are legally regulated. In other words, under the Waste Management Act, when processing through shredding or crushing, less than 20% of solids can be discharged and 80% must be recovered. If 100% of food waste is ground and thrown away, it is illegal and subject to a fine of up to 1 million won.

Accordingly, in previously disclosed patent registration number 10-1418605, a hollow drum unit; a rotating member rotatably mounted inside the drum unit and having at least one inclined protrusion formed on an inner peripheral surface; And a rotating screw provided with a rotating body rotating along a vertical rotation axis and at least one blade extending in a radial direction from the center of the rotating body, and located inside the drum unit. When the rotating screw rotates, the blade is interlocked with the protrusion, so that the rotating screw and the rotating member rotate at a constant speed.

In addition, in another prior art, Patent Publication No. 10-2009-0073392, a cylindrical drum unit having an inlet through which dehydrated food waste is input and an outlet through which dried food waste is discharged, is rotatably disposed in the inner space of the drum part. A stirring screw consisting of a plurality of rotary blades that agitate and crush the food waste put into the drum unit and a rotating shaft equipped with rotary blades, a motor unit provided on one side of the drum unit and providing power to rotate the stirring screw, and the body of the drum unit. A technology including a heater member provided on the outer surface and drying food waste by providing high heat to the inner space of the drum unit when power is applied, and a cutting unit provided on the entrance surface of the outlet to cut the discharged food waste has been previously disclosed. there is.

However, the above conventional technologies process food waste by drying it and then discharging it, so moisture is removed during drying, reducing the volume by more than 50% and weight by more than 80%, but it takes a lot of time to dry the food waste. If additional food waste is added during the drying process, it is mixed with the previously added food waste and the drying process starts again from the beginning, delaying the drying time and making it impossible to continuously dry the food waste. There was a cumbersome problem in use, as the process of manually discharging food waste and emptying the drum unit was repeated.

KR 10-1418605 B1 (2014.07.04.) KR 10-2009-0073392 A (2009.07.03.)

The present invention has created a new technology to solve all the problems of the prior art described above, and provides a food waste treatment device that improves moisture removal efficiency by shredding dried materials, including food waste, into small pieces during the drying process. Make it a task you want to do.

In particular, the purpose is to provide a food waste disposal device configured to dry the first input drying material (food waste) and the subsequent input drying material with high water content in stages in separate spaces.

As a specific means for solving the above-described problem of the invention, the present invention constitutes a food waste treatment device, which includes an inlet 12 that is opened and closed by a cover 11, a lower flow path 13 through which the dried matter is discharged, and humid air. A main drying room (10) in which an upper flow path (14) through which is discharged is formed; A heater unit 20 installed on one or more of the bottom and sides of the main drying room 10 and provided to heat the inside of the main drying room 10; A stirring blade 30 installed on the inner floor of the main drying room 10 and rotated by a motor to stir the object to be dried; A filter unit (40) connected to the upper flow path (14) of the main drying room (10) and provided to filter and discharge wet air; and an auxiliary drying unit 60 that has an auxiliary drying room 62 connected to the lower flow path 13 of the main drying room 10, and stores the discharged drying object for secondary drying. .

In addition, the lower passage 13 of the main drying room 10 is provided with a transfer unit 100 including a transfer screw 104 installed vertically or upwardly inclined to forcibly discharge the object to be dried, and the transfer unit 100 On one side of the auxiliary drying room 62 located at the bottom, an outlet 108 connected to the guide pipe 109 is formed, and the outlet 108 has a predetermined height (h) from the bottom of the main drying room 10. It is characterized by being formed so as to suppress discharge of undried residual liquid.

In addition, the auxiliary drying unit 60 includes a multi heater 66 installed on the bottom or side of the auxiliary drying chamber 62 to heat the interior of the auxiliary drying chamber 62, and an inner floor of the auxiliary drying chamber 62. It is characterized by including a multi-stirring blade (64) installed in and rotated by a motor.

In addition, the lower passage 13 is formed at the bottom of the main drying room 10, and a door 18 that is opened and closed by an actuator is installed in the lower passage 13, and the upper part of the auxiliary drying room 62 is the main drying room 62. It is configured to be in close contact with the lower part of the drying room 10, and when the door 18 is opened, the items to be dried in the main drying room 10 are dropped and moved into the auxiliary drying room 62 by the rotation of the stirring blade 30. Do it as

The stirring blade 30 and the multi-stirring blade 64 are installed on the reduction shaft 6 of the same motor, and the opening and closing operation of the door 18 installed in the lower passage 13 is controlled by the control unit 80. The control unit 80 measures the moisture content of the object to be dried in the main drying room 10 and automatically opens the door 18 when it reaches a set value.

According to the specific means for solving the above-described problem, the present invention has the advantage of improving moisture removal efficiency by finely crushing dried materials, including food waste, during the drying process, and making it easy to discharge the dried materials after completion of drying.

In particular, the structure has been improved so that the items to be dried first and those with high water content added later are dried step by step in separate spaces, which has the effect of shortening the drying time and maximizing energy efficiency even when the items are continuously added.

1 is a cross-sectional view showing the overall configuration of a preferred embodiment of the food waste disposal device provided by the present invention.
Figure 2 is an enlarged perspective view of the main part of the food waste treatment device of the present invention.
Figure 3 is an enlarged perspective view of an embodiment of the transport unit in the food waste disposal apparatus of the present invention.
Figure 4 is an overall cross-sectional view showing another embodiment of the auxiliary drying unit in the food waste disposal apparatus of the present invention.

Hereinafter, the present invention will be described in more detail according to specific embodiments of the attached drawings. The technical terms used in this specification are terms selected in consideration of their functions in the embodiments, and the meaning of the terms may vary depending on the specific embodiment of the invention. And throughout the specification, when a part is said to be "connected" to another part, this includes not only the case where it is "directly connected" but also the case where it is "indirectly connected" with another member in between. do.

In addition, expressions indicating directions such as “up, down, front, back” used in the following description are defined based on the drawings, and the shape and position of each component are not limited by these terms.

The present invention relates to a food waste disposal device, which improves moisture removal efficiency by finely crushing dried materials including food waste during the drying process, and facilitates the discharge of dried materials. In particular, the first inputted food is easily disposed of. The structure has been improved so that the dried material and the items to be dried are dried step by step in a separate space, and the main drying room (10), heater unit (20), and stirring blade are installed to shorten the drying time and maximize energy efficiency even when the items to be dried are continuously added. It consists of a main structure including (30), a filtering unit (40), and an auxiliary drying unit (60).

Figure 1 is a cross-sectional configuration diagram overall showing a preferred embodiment of the food waste disposal device provided by the present invention. First, the main drying room 10 according to the present invention has an inlet 12 opened and closed by a cover 11, and the main drying room 10 has an inlet 12 opened and closed by a cover 11. A lower flow path 13 through which objects to be dried are discharged is formed on the lower side of the drying chamber 10, and an upper flow path 14 through which wet air is discharged is formed on the upper side.

The main drying room 10 is a space in which objects to be dried, including food waste, are accommodated. It is preferably made of aluminum alloy to improve the heating efficiency by the heater unit 20, which will be described later, and an insulating material for insulation is provided on the outer peripheral surface. Can be installed.

In addition, a lower flow path 13 is opened on one side of the lower part of the main drying room 10 to discharge the dried object. At this time, the lower flow path 13 is remotely opened and closed by a door 18, which will be described later. The object to be dried is forcibly discharged by the transport unit 100, which will be described later.

At this time, in order to prevent undried liquid from being discharged through the lower passage 13, the floor of the main drying room 10 may be configured to slope downward as it moves away from the lower passage 13.

The heater unit 20 according to the present invention is designed to heat food introduced into the main drying room 10, and is installed on one or more of the bottom and sides of the main drying room 10.

The heater unit 20 may be manufactured using an insert molding method when molding the main drying room 10, or may be provided on the outer surface of the main drying room 10 in a detachable and replaceable manner.

Additionally, an insulating material may be further formed on the outside of the heating wire to prevent heat emitted from the heater from being dissipated to the outside and thus increase insulation properties.

In addition, the on/off operation of the heater unit 20 is controlled by the control unit, and the control unit controls the operation of the heater unit 20 based on the internal temperature of the main drying room 10 detected by the temperature sensor.

Figure 2 is a configuration diagram showing the stirring blade of a food waste treatment device according to an embodiment of the present invention. The stirring blade 30 according to the present invention is installed on the inner floor of the main drying room 10 and is used to stir the object to be dried while being rotated by a motor. The stirring blade 30 is located at the bottom of the main drying room 10. It is installed on the reduction shaft 6 installed in the direction and is provided to rotate in the forward and reverse directions by the control unit.

In addition, the stirring blade unit 30 is provided to crush the object to be dried while crossing the crushing blade unit 16 installed on the inner wall of the main drying room 10.

At this time, the shredding blade part 16 is bent so as not to interfere with the path of the rotating stirring blade 30 to form a horizontal blade and a longitudinal blade, so that bulky or long food waste can be separated from the shredding blade part 16 and the stirring blade 30. It provides a cutting effect, and the cutting effect can be improved by forming a crushing protrusion (16a) on the inner wall of the main drying room (10).

Referring to FIG. 2, the stirring blade 30 includes a lower rotating blade 32 that is formed in the same shape as the bottom of the crushing blade 16 and intersects the bottom of the crushing blade 160 to crush and agitate the dried object, It is formed in the same shape as the upper surface of the crushing blade unit 16, and intersects the upper surface of the crushing blade unit 30, and includes an upper rotating blade 34 that crushes and agitates the dried object, and protrudes in the longitudinal direction at the end of the upper rotating blade 34, It includes a grinding blade 36 whose rotation radius is close to the crushing protrusion 16a to crush the dried object.

In this way, the lower rotating blade 32 and the upper rotating blade 34 of the stirring blade 30 alternately pass through the bottom and upper surfaces of the crushing blade portion 16 to crush the dried material by the scissors principle, and the upper rotating blade ( At the point when 34) passes through the crushing blade portion 16, the crushing blade 36 passes close to the crushing protrusion 16a and the dried material is finely pulverized.

The filter 40 according to the present invention is connected to the upper flow path 14 of the main drying room 10 and is provided to filter and discharge wet air.

Specifically, the filtering unit 40 is connected to a fan 42 that is connected to the upper flow path 14 of the main drying room 10 to suck in wet air, and is connected to the discharge port of the fan 42 so that wet air moves upward from the bottom. An upward filtration passage 44 that guides the upward filtration passage, a filtration filter 46 that is replaceably installed within the upward filtration passage 44 and removes odors contained in moist air, and an upward filtration passage corresponding to the lower end of the filtration filter 46. (44) Includes a drain tank (48) installed at the bottom to collect and discharge leachate.

The filtration filter 46 is formed of a filter box and a cover, and a filter cartridge (deodorizing filter containing an activated carbon pack) is replaceably accommodated inside the filter box, thereby reducing maintenance costs by replacing the filter cartridge locally. I do it.

In addition, a through hole is formed in the lower part of the upward filtration passage 44 to allow the wet air introduced by the fan 42 to enter, and the wet air is discharged upward along the upward filtration passage 44 and passes through the filtration filter 46. Since the leachate condensed during filtration is separated in the direction of gravity and collected in the drain tank 48 located at the bottom, external outflow of moisture contained in wet air can be minimized. At this time, a pipe is connected so that the air discharged through the upward filtration passage 44 flows into the sewer.

The food waste treatment device provided by the present invention is designed to dry food waste in an independent space so that food waste that is dried first is not mixed with food waste that is subsequently introduced. For this purpose, in the present invention, the lower flow path (13) of the main drying room (10) is provided. ) is provided with an auxiliary drying room 62 connected to the main drying room 10 to store the drying material discharged from the main drying room 10 and secondary drying at a lower moisture content to form an auxiliary drying section 60.

Referring to FIG. 1, the auxiliary drying unit 60 includes a multi heater 66 installed on the bottom or side of the auxiliary drying chamber 62 to heat the interior of the auxiliary drying chamber 62, and the auxiliary drying chamber 62. It includes a multi-stirring blade (64) installed on the inner floor of and rotated by a motor.

Accordingly, when new food waste with a high moisture content is input into the treatment device while food waste is being dried in the main drying room 10, the food waste being dried is first moved to the auxiliary drying unit 60, so that the dried food waste is then inputted. It is possible to completely dry quickly and efficiently through the action of the multi-stirring blade (64) and multi-heater (66) without mixing with it.

Figure 3 is an enlarged perspective view of an embodiment of the transport unit in the food waste disposal apparatus of the present invention. In order to move the items to be dried in the main drying room 10 to the auxiliary drying room 62, as shown in FIGS. 1 and 3, it is installed in the lower passage 13 of the main drying room 10 to force the items to be dried. A conveying unit 100 for discharging may be further provided.

The conveying unit 100 may be configured to include a conveying screw 104 installed inside the pipe body to implement forced discharge of the dried material, but in addition, buckets are installed at predetermined intervals on the conveyor belt. It can also be implemented in the form of a disk carrier with a plurality of disks arranged in series on a conveyor or endless wire.

If the transfer screw 104 is implemented so that the rotation axis of the screw is formed vertically or is installed to be inclined upward to transfer the dried material upward, it is possible to prevent the undried residual liquid from being discharged together with the object to be dried.

In addition, an outlet 108 connected to the guide pipe 109 and the auxiliary drying chamber 62 located below is formed on one side of the transport unit 100. At this time, the outlet 108 is formed to have a predetermined height (h) from the floor of the drying room to prevent moisture that may remain on the floor from being discharged along with the items to be dried.

According to the above configuration, the drying object in the main drying room 10 falls through the discharge port 108 open on one side while being transported upward by the transfer screw 104 and goes through the guide pipe 109 to the auxiliary drying room 62. It is moved.

Meanwhile, the transfer unit 100 is provided to operate in conjunction with the stirring blade 30 by a power transmission member 102. That is, the central axis of the motor coupled to the stirring blade 30 and the central axis of the transfer screw 104 are connected to the power transmission member 102 formed of a belt or chain.

At this time, when the food waste introduced into the main drying room 10 is dried while the stirring blade 30 is rotated in one direction, the transfer screw 104 opposes the discharge so that the dried object is not forcibly discharged through the transfer unit 100. It must be set to rotate in this direction, and when discharging through the transfer unit 100 after drying, the motor is rotated in reverse so that the transfer screw 104 is provided to forcibly discharge the dried items in the main drying room 10, so one motor is used. There is an advantage in that the stirring blade 30 and the conveyance unit 100 can be controlled complexly.

Figure 4 is an overall cross-sectional view showing another embodiment of the auxiliary drying unit in the food waste disposal apparatus of the present invention.

According to the configuration of FIG. 1 described above, food waste in the main drying room 10 is provided to be moved to the auxiliary drying room 62 by the transfer unit 100, but as shown in FIG. 4, the food waste is placed on the floor of the main drying room 10. When a lower passage 13 is formed and a door 18 that is opened and closed by an actuator is installed in the lower passage 13, the object to be built can be moved only by opening and closing the door 18.

Specifically, an auxiliary drying room 62 is formed below the main drying room 10, and the stirring blade 30 and the multi-stirring blade 64 are installed on the reduction shaft 6 of the same motor and operated by one motor. Let it run.

At this time, the upper part of the auxiliary drying room 62 is configured to be in close contact with the lower part of the main drying room 10 so that the auxiliary drying room 62 is sealed, thereby improving insulation and preventing odors from leaking to the outside.

In addition, the opening and closing operation of the door 18 installed in the lower passage 13 is controlled by the control unit 80, and the control unit 80 measures the moisture content of the object to be dried in each drying room 10 and 62 and adjusts the moisture content to the set value. Upon arrival, the door 18 is provided to automatically open.

As shown in FIG. 4, when two auxiliary drying units 60 are arranged vertically, a multi-door 68 that is opened and closed by an actuator is also formed in the bottom passage 63 of each auxiliary drying room 62.

At this time, in order to finally recover the dried object, a recovery unit 50 for storing the dried object is formed in the lower passage 63 of the auxiliary drying room 62 located at the lowest side.

The recovery unit 50 is comprised of a collection container 51 that can be pulled out in a drawer style, and an opening/closing door 52 formed in the main body to take it out to the outside, so that anyone can easily discharge the dried items.

The recovery container 51 can be separately provided at the lower part of the auxiliary drying unit 60 as shown in FIG. 4, but can be used as the recovery container 51 by installing a handle on the auxiliary drying chamber 62 as shown in FIG. 1. Configuration is also possible.

The operation method of the food waste disposal device equipped with the multi-stage auxiliary drying unit 60 as described above will be described.

In the case where two auxiliary drying units 60 are formed in series as shown in FIG. 4, if the door 18 is set to open when the moisture content in the main drying room 10 reaches 40%, the moisture content of food waste is When it reaches 40%, the door 18 is opened, and the object to be dried is moved to the auxiliary drying chamber 62 below through the lower passage 13 due to the rotating action of the stirring blade. Accordingly, the main drying room 10 is emptied and prepared to immediately receive newly introduced food waste.

In addition, the auxiliary drying room 62 is set to dry at a lower moisture content than the main drying room 10, for example 20%, and secondary drying is performed. When the secondary drying is completed and the multi-door 68 is opened, the object to be dried is dried. It is moved to the lowest auxiliary drying room 62 and finally dried to reach the target moisture content (5% or less).

In this way, as the object to be dried is dried through a multi-stage drying process, the food waste that is dried first is not mixed with the food waste with a high moisture content and is dried step by step in a separate space, thereby shortening the drying time and improving energy efficiency.

As described above, the most preferred embodiments of the present invention have been described in the detailed description of the present invention, but various modifications may be made without departing from the technical scope of the present invention. Therefore, the scope of protection of the present invention should not be limited to the above embodiments, but should be recognized to the technologies in the patent claims described later and to equivalent technical means from these technologies.

10: Main drying room
11: cover 12: inlet 13: lower flow path
14: upper flow path 16: crushing blade 16a: crushing protrusion
18: door
20: heater unit
22: heat sink 24: heat insulation material
30: Stirring blade
32: lower rotating blade 34: upper rotating blade 36: grinding blade
40: filtration unit
42: Fan 44: Upward filtration passage 46: Filtration filter 48: Drain container
50: recovery unit
51: recovery container 52: opening and closing door
60: Auxiliary drying unit
62: Auxiliary drying chamber 63: Lower flow path 64: Multi-stirring blade
66: Multi heater 68: Multi door
80: control unit
100: Conveyance department
102: Power transmission member 104: Transfer screw
106: Eccentric push piece 108: Outlet 109: Guide pipe

Claims (5)

A main drying room (10) formed with an inlet (12) opened and closed by a cover (11), a lower flow path (13) through which objects to be dried are discharged, and an upper flow path (14) through which wet air is discharged;
A heater unit 20 installed on one or more of the bottom and sides of the main drying room 10 and provided to heat the inside of the main drying room 10;
A stirring blade 30 installed on the inner floor of the main drying room 10 and rotated by a motor to stir the object to be dried;
A filter unit (40) connected to the upper flow path (14) of the main drying room (10) and provided to filter and discharge wet air; and
A food product comprising: an auxiliary drying unit 60 having an auxiliary drying chamber 62 connected to the lower flow path 13 of the main drying chamber 10, and storing and secondary drying the discharged items to be dried; Garbage disposal device.
According to clause 1,
The lower passage 13 of the main drying room 10 is provided with a conveying unit 100 including a conveying screw 104 installed vertically or upwardly inclined to forcibly discharge the object to be dried,
On one side of the transport unit 100, an outlet 108 is formed that is connected to the auxiliary drying chamber 62 located at the bottom and the guide pipe 109,
The outlet (108) is formed to have a predetermined height (h) from the bottom of the main drying room (10) to suppress discharge of undried residual liquid.
According to clause 1,
The auxiliary drying unit 60,
A multi heater 66 installed on the bottom or side of the auxiliary drying chamber 62 to heat the interior of the auxiliary drying chamber 62,
A food waste disposal device comprising a multi-stirring blade (64) installed on the inner floor of the auxiliary drying room (62) and rotated by a motor.
According to clause 3,
The lower passage 13 is formed at the bottom of the main drying room 10,
A door 18 that is opened and closed by an actuator is installed in the lower passage 13,
The upper part of the auxiliary drying room 62 is configured to be in close contact with the lower part of the main drying room 10,
A food waste disposal device characterized in that when the door (18) is opened, the items to be dried in the main drying room (10) are dropped and moved into the auxiliary drying room (62) by the rotation of the stirring blade (30).
According to clause 3,
The stirring blade 30 and the multi-stirring blade 64 are installed on the reduction shaft 6 of the same motor,
The opening and closing operation of the door 18 installed in the lower passage 13 is controlled by the control unit 80,
The control unit 80 measures the moisture content of the drying object in the main drying room 10 and automatically opens the door 18 when it reaches a set value.

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