KR20010027616A - process device and method of food waste - Google Patents

Abstract

PURPOSE: A food waste treatment equipment is provided, which collects food waste without any bags and selects foreign material such as metal by manual works. The process is operated automatically through the whole process of crushing, de-watering, fermenting and drying and bagging. CONSTITUTION: The system comprises the followings: (i) a hopper(1) for feeding food waste; (ii) a selection device for selecting foreign material that is harmful to livestock; (iii) a crusher; (iv) a de-watering device; (v) a fermenting and drying tank(35) for fermenting and drying the food waste at optimum temperature and humidity; (vi) a screen(38) for screening by particle size using vibration; and (vii) a bagging machine(40).

Description

Processing device and method of food waste

The present invention relates to a food waste processing apparatus and a method thereof, and more particularly, to collecting livestock feed without using a disposable bag for collecting these food wastes when processing food wastes including residues discharged from homes and restaurants. The present invention relates to a food waste treatment apparatus and a method for manufacturing the same.

Food wastes, including residues, which are increased due to the development of the food culture, lead to waste of resources at the national level, and the disposal of such food wastes entails huge disposal costs and economic losses.

That is, the food waste is disposed in a disposable bag directly in a designated place or incinerated in a predetermined incineration device, a method of putting a predetermined fermentation bacteria in food waste and recycling it as an organic fertilizer, and includes water or It is a situation that a lot of methods to recycle the livestock feed in a dried state.

However, when the food waste is reclaimed, the collected food waste is transported to a landfill located in the outlying area, which increases the logistics cost, which is burdened by users, and a disposable bag does not rot in the ground, promoting soil contamination. Leachate and odor generated during landfilling cause serious water pollution such as soil and groundwater, and complaints about landfill sites are continuously generated in the surrounding area, which causes a serious social problem.

In addition, incineration of food waste causes air and environmental pollution due to dioxin, which is fatal to the human body, and causes complaints about the place where incinerators are installed, and excessive acidification of the soil when recycling with organic fertilizer. As a result, there is a problem of inhibiting the growth of the plant, and when the animal feed is recycled, there is a problem of inhibiting the growth of livestock due to a failure to completely filter out foreign substances of metal components by a detection sensor, a magnetic substance, etc. in the feed manufacturing process.

As described above, when the food waste is disposed of by using a disposable collection bag or incinerated, the logistics cost is increased, and the landfill and water quality are most seriously damaged by landfill. The problem arises.

For this reason, a waste-based system is implemented to reduce the amount of waste including food waste, and disposable bags are separately paid by the user when purchasing items in department stores, markets, etc. to minimize the amount of disposable waste bags.

Accordingly, an object of the present invention is to eliminate the use of disposable bags at the time of collection so that food waste, including residues discharged from restaurants, etc., can be recycled as livestock feed. It is to provide a food waste treatment apparatus and method for preventing soil and environmental pollution.

Another object of the present invention is to provide a food waste treatment apparatus and a method for completely sorting and taking out foreign substances such as metals harmful to livestock by hand in the process of manufacturing food waste into livestock feed.

Another object of the present invention is to minimize the cost of maintenance (A / S) maintenance by unauthorized operation by automating the operation of the entire process of crushing, dehydration, fermentation and drying, packaging the collected food waste It is to provide a waste disposal apparatus and a method thereof.

It is still another object of the present invention to provide a food waste treatment apparatus and method for supplying livestock feed using food waste to a livestock farm at a low price, thereby remarkably reducing the economic burden of purchasing livestock feed. It is.

1 is a schematic diagram of a food waste treatment apparatus according to the present invention;

Figure 2 is a schematic diagram of the foreign matter sorter of the food waste treatment apparatus according to the present invention,

Figure 3 is a schematic view of the crusher and feeder of the food waste treatment apparatus according to the present invention,

Figure 4 is a schematic view of the dehydrator and distributor of the food waste treatment apparatus according to the present invention,

Figure 5 is a schematic diagram showing that the food waste is discharged from the storage tank in the food waste processing apparatus according to the present invention is transferred to the fermentation and dryer,

Figure 6 is a schematic diagram showing that the food waste is discharged from the fermentation and dryer in the food waste processing apparatus according to the present invention is transported to the sorter,

7 is a schematic view of a sorter in a food waste treatment apparatus according to the present invention;

8 is a schematic view of a packaging machine for packaging after treating food waste in the food waste treatment apparatus according to the present invention,

9 is a flowchart illustrating a food waste treatment method according to the present invention.

* Explanation of symbols used in the main part of the drawing

One; Hopper 2; Belt conveyer

3; Foreign body sorter 4; cover

5; Casing 6; Lighting

7; Insertion opening 8; Dust collector

9; Flight conveyor 10; grinder

11; Casing 12; Drive motor

13; Chain 14; supporter

15; Knife 16; screw

17; Distributor 18; Drive motor

19,20; First conveyor 21,22; Reservoir

23; Stirring blade 24; Axis of rotation

25; Air cylinder 26; Slide gate

27; Drive motor 28; Belt conveyer

29; Feeder 30; Dehydrator

33,34; Second conveyor 35,36; Fermentation and Dryer

37; Belt conveyor 38; Classifier

39; Belt conveyor 40; Packing machine

The object of the present invention described above is a foreign matter sorter and a foreign matter sorter to identify and separate by manual hopper to check the foreign matter harmful to the livestock included in the food waste transported from the hopper and the food waste, and the hopper A pulverizer for crushing food wastes transported when the duct-shaped flight conveyor is driven after being sorted, a dehydrator for dehydrating a portion of moisture contained in the crushed food wastes by screw compression, and a pair of first dehydrators A distributor which is formed in a transfer section between the conveyors and selectively distributes the food waste discharged from the dehydrator to the pair of first conveyors according to a driving direction of a screw conveyor interlocked when driving the driving motor thereof; Food waste discharged from the distributor and conveyed through a pair of first conveyors Store each group independently, and when the blade formed on the drive shaft is rotated first to prevent the sediment of food waste located on the bottom of its own, and the storage tank for stirring to facilitate the fermentation of food waste, and is discharged from the storage tank A fermentation and drying machine for fermenting and drying food wastes conveyed through a pair of second conveyors under atmospheric conditions maintaining a predetermined temperature and humidity, and food wastes transferred from the fermentation and dryers are generated when the driving motor is driven. A sorter for sorting and classifying the food waste by predetermined particles according to the type of livestock feed while transferring in one direction by vibration and its inclination, and receiving livestock feed of predetermined particles passing through the sorter to a predetermined packing means. Sealed by packing machine and the above series of units A controller for automatically controlling the driving values to be achieved by the food waste treatment apparatus, characterized by configured to provide.

According to a preferred embodiment, the foreign matter sorter is a tunnel-shaped casing is mounted on the left and right sides, respectively, the cover is formed as a transparent material so as to see the inside from the outside, and the conveyed along the belt conveyor It is formed on the illumination lamp for irradiating the food waste and the left and right covers so as to visually identify the foreign matter such as iron contained in the food waste, and to extract the foreign matter when checking the foreign matter contained in the food waste. It is provided with an insertion hole into which the hand of the worker is put.

According to a preferred embodiment, it is provided below the reservoir, and is provided with a slide gate for sliding the opening and closing of the outlet of the reservoir by sliding according to the expansion and contraction of the air cylinder to drive in accordance with the signal input from the controller.

According to a preferred embodiment, the flight conveyor is mounted to the outside of the casing of the duct, the drive motor to drive in accordance with the signal input from the controller, and the left and right inside the casing to be interlocked when driving the drive motor. It is fixed under the supporter formed integrally by maintaining a predetermined interval in the driving direction of the chain between the chain and the chain, and has an elastic force for supplying the food waste conveyed from the foreign matter separator to the grinder when the drive motor is driven. With a knife.

According to a preferred embodiment, the foreign matter sorter further includes a dust collecting device for sucking and discharging dust generated in the casing to prevent the food waste transported along the belt conveyor from scattering.

The object of the present invention described above, by the input step of injecting the food waste into the hopper, the foreign matter harmful to livestock by the lighting lamp for irradiating the food waste discharged from the hopper and transported along the belt conveyor with the naked eye, foreign matter Foreign material sorting step of inserting and separating the worker's hand into the insertion hole formed in the cover which is mounted on the left and right sides to be opened and closed at the check, and the food waste conveyed during the operation of the duct-shaped flight conveyor after the foreign matter is sorted by the rotation of the blade. Due to the crushing step of crushing to a predetermined size, the dehydration step of dehydrating a part of the water contained in the food waste to be crushed and conveyed by the compression of the screw, the dehydrated food waste according to the driving direction of its screw conveyor 1 Dispensing step for distributing and selectively distributing food to the conveyor Each group is independently stored, and the first food waste is prevented from settling on its bottom due to the rotation of the blade, the storage step having a process of stirring to facilitate the fermentation of food waste, discharged from the storage step The fermentation and drying step of fermenting and drying the food waste under atmospheric conditions maintaining a randomly set temperature and humidity, and the fermented and dried food waste in one direction by vibrating the driving motor and its inclination. It is achieved by providing a food waste treatment method comprising a sorting step of sorting and sorting by a predetermined particle according to the type and a packing step of receiving and classifying livestock feed classified and sealed by the packaging means.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, which will be described in detail to be easily carried out by those skilled in the art in order to facilitate understanding of the present disclosure. This does not mean that the technical scope of the present application is limited.

1 and 2, a hopper to which food waste including residues collected by using a separate collection container without using disposable collection bags from apartments, restaurants, etc. 1), the belt conveyor (2) for transporting the food waste discharged from the hopper (1) is formed to be repeatedly driven in conjunction with the drive motor drive according to the signal input from the controller (C), belt conveyor ( Form a foreign matter sorter (3) to the side of the hopper (1) to identify and separate foreign substances such as metal components harmful to the livestock included in the food waste transported along 2).

At this time, as shown in Figure 2, the foreign matter sorter 3, the tunnel-shaped casing (4) is formed to be opened and closed on the left and right, the cover 4 is formed as a transparent material such as acrylic so as to see the inside ( 5) and the lighting lamp 6 for irradiating the food waste so that the foreign matter contained in the food waste transported along the belt conveyor 2 can be visually checked and the foreign material included in the food waste can be withdrawn. The casing (5) is formed in the above-described left and right cover (4) so as to prevent the scattering of food waste conveyed along the belt conveyor (2) and the insertion hole (7) into which the operator's hand is inserted. A dust collecting device 8 for sucking and discharging dust generated therein is provided.

On the other hand, the above-described belt conveyor (2) can be installed at a predetermined position inside the casing (5) to the nozzle (not shown) to be cleaned by using pneumatic or water pressure after work.

As shown in FIG. 3, the food waste sorted by the above-mentioned foreign matter sorter 3 is crushed to a predetermined size by driving a duct-shaped flight conveyor 9. Supplied to.

2 and 3, the above-described flight conveyor 9 is driven at a predetermined position outside the casing 11 to be driven in accordance with the signal input from the controller C described above. A supporter fixed integrally to the left and right chains 13 and the chain 13 installed at the left and right sides of the casing 11 so as to interlock when the motor 12 and the driving motor 12 are driven. 14 and an elastic force, such as rubber, which is fixed to the lower end of the supporter 14 and integrally transports the food waste, from which the foreign matter is supplied from the foreign matter sorter 3, to the grinder 10 when the driving motor 12 is driven. And a knife 15 having.

To transfer the food waste, which is crushed to a predetermined size by the above-described mill 10, through its belt conveyor 28, which is interlocked when driving the drive motor 27 to drive according to the signal input from the above-mentioned controller C. Inlet 29a of feeder 29 is connected to outlet 10b of mill 10 (shown in FIG. 3).

The inlet port 30a of the dehydrator 30, which dehydrates a part of moisture contained in the food waste conveyed through the above-described feeder 29 by compression of a screw, is connected to the outlet 29b of the feeder 29. At this time, the wastewater discharged through the dehydration hole (30b) when dewatered by the dehydrator 30 is supplied to a predetermined purification device is connected to a predetermined purification device through the discharge pipe 31 so that it can be purified (see FIG. 3). being).

The inside of the screw conveyor (secrew conveyor) through the left and right outlet 17b of the food waste crushed to a predetermined size introduced through its inlet 17a connected to the outlet 30a of the dehydrator 30 described above. Distributers 17 are provided for selectively distributing and supplying them in the left or right direction according to the driving direction (forward and reverse rotation) of the screw 16, and the screw conveyor 16 is installed from the controller C. It is formed to drive repeatedly in conjunction with the drive motor 18 of its own driving according to the signal input of (shown in Figure 4).

The storage tanks 21 and 22 are formed to independently store the food wastes discharged from the aforementioned distributor 17 and transferred through the pair of first and second conveyors 19 and 20 in the duct shape. Drive motor for driving the screw conveyor 16 in the above-mentioned controller (C) by the detection of a sensor (not shown) to check if the food waste flows into any one of the reservoir (21, 22) ( It is formed to control the driving direction of 18) (shown in Figs. 4 and 5).

The above-described storage tank (21, 22) prevents the food waste introduced first from among the food wastes to be repeatedly settled by its own weight to be compressed, and the stirring blade (23) for stirring to facilitate the fermentation of food wastes is controlled by the controller ( In accordance with the signal input from C) is formed at a predetermined angle on the rotating shaft 24 that is interlocked when driving the drive motor (shown in Figure 6).

At this time, the storage of food waste in the above-described storage tank (21, 22) is preferably stored for 2 to 4 hours.

When the expansion and contraction of the air cylinder 25 to be driven in accordance with the signal input from the controller (C) under the above-described reservoir (21, 22) is moved to open and close the outlet 21a of the reservoir (21, 22) A slide gate 26 is integrally fixed to the rod of the air cylinder 25.

The food waste discharged from the above-described storage tanks 21 and 22 and transferred through the left and right pair of second conveyors 33 and 34 having a duct shape is fermented under atmospheric conditions maintaining a predetermined temperature and humidity. Drying fermentation and dryers 35 and 36 are formed (shown in FIG. 6).

A sorter 38 is formed to classify the food waste discharged from the fermentation and dryers 35 and 36 described above and transported along the belt conveyor 37 by predetermined particles according to the type of livestock feed (shown in FIG. 7). ), The classifier 38 can sort food by one particle while transporting the food waste in one direction by vibration and its own inclination generated when the drive motor is driven in response to a signal input from the controller C. A screen having a predetermined mesh is provided.

Install a packing machine 40 for receiving the animal feed of the predetermined particles discharged from the above-described sorter 38 and transported along the belt conveyor 39 after weighing a predetermined weight on a packing table not shown and sealingly packed. But (shown in Figure 8), the packaging using the packaging machine 40 will be described in the field of the general industry in the industry of sealing and packing the packaging, so the detailed description thereof will be omitted.

It is provided with a controller (C) for automatically controlling the operation of the series of units for treating the above-mentioned food waste into livestock feed.

Reference numerals R1, R2, and R3 are horizontally installed at the center to prevent sagging of the belt conveyor when transporting food waste, and are rollers that are inclined at predetermined angles on the left and right sides to support the bottom surface of the belt conveyor.

Hereinafter, the food waste treatment method using the apparatus according to the present invention will be described with reference to the accompanying drawings.

As shown in Figure 1 and 2, when collecting the food waste, including the residues to be taken out from the apartment, such as apartments, large restaurants, and the like collected by using a separate collection container without using a disposable bag tactical Into one hopper 1 (see S10). In other words, it is possible to prevent environmental pollution such as soil and water quality generated when landfilling or incineration using disposable bags without using disposable collection bags when collecting food waste.

The food waste containing moisture discharged from the hopper 1 is transported along the belt conveyor 2 which is repeatedly driven by the driving motor according to a predetermined signal input from the controller C. It flows into the tunnel-shaped foreign matter sorter 3 side (shown in FIG. 2).

Therefore, as shown in Figure 2, it is possible to screen the foreign substances such as metal components harmful to the livestock included in the food waste introduced into the foreign matter sorter (3) described above. That is, as the light by the illumination lamp 6 formed inside the tunnel-shaped casing 5 is irradiated with food waste, it is formed as a transparent material such as acrylic so that the inside of the casing 5 can be seen. By the cover (4) mounted to be openable and open to the foreign matter contained in the food waste transported along the belt conveyor (2) can be visually confirmed.

When the foreign matter is visually checked from the outside of the casing (5), the worker's hand is put through the insertion hole (7) formed in the left and right covers (4) to immediately take out the foreign matter to the outside of the casing (5) (see S20). .

At this time, the scattering of the food waste generated inside the casing 5 when the food waste is transported along the belt conveyor 2 described above is installed outside the casing 5 to suck and discharge the internal air of the predetermined particles. It is possible to remove by driving the predetermined dust collector (8).

Therefore, as the foreign matter contained in the food waste is completely sorted and separated by manual labor, the foreign matter cannot be found when the foreign matter is selected by using a sensor or a magnetic substance in the prior art. It can prevent.

On the other hand, after the operation it is possible to wash the inner surface of the left and right cover 4 and the belt conveyor 2 by pneumatic or hydraulic pressure sprayed through a nozzle installed at the predetermined position inside the casing 5 described above.

The food waste in which foreign matters are selected through the above-described foreign matter sorter 3 is transported along the duct-shaped flight conveyor 9 and supplied to the grinder 10 (see FIG. 3). That is, as the driving motor 12 mounted on the outer side of the casing 11 is driven by the predetermined signal input from the controller C described above, the casing 11 to be interlocked when the driving motor 12 is driven. The chain 13 installed left and right inside is driven.

Accordingly, the food waste is conveyed in the driving direction of the chain 13 by the knife 15 having the elastic force fixed to the lower side of the supporter 14, in which both ends are integrally fixed to the left and right chains 13, and then the grinder 10 Can be supplied to.

In the above-described grinder 10, the food waste can be crushed to a predetermined size by the rotation of the blade fixed to the rotating shaft (see S30).

The food waste passing through the discharge port 10b of the pulverizer 10 is introduced into the inlet port 29a of the feeder 29 and then driven by the belt conveyor 28 which is linked when the drive motor 27 is driven. It is possible to supply to the dehydrator 30 by the (shown in Figure 3).

Food waste containing moisture supplied to the dehydrator 30 is dewatered by compression of a screw that is interlocked when the drive motor 30a is driven (shown in FIGS. 3 and 4). At this time, the wastewater dewatered from the food waste is supplied to a predetermined purification apparatus through a discharge pipe 31 connected to the dehydrator 30 to be purified (see S40). At this time, since the purification of wastewater corresponds to the technical content commonly used in the industry, detailed descriptions thereof will be omitted.

The dehydrated food waste discharged through the outlet 30a of the dehydrator 30 is introduced into the distributor 17 through its inlet 17a (shown in FIGS. 3 and 4). The food waste flowing into the distributor 17 is left or right according to the driving direction (forward clockwise rotation or counterclockwise rotation) of the screw conveyor 16 which is interlocked when the drive motor 18 is driven. It is supplied to the 1st conveyors 19 and 20 of the left side or the right side of a duct shape through the discharge port 17b of (refer S50).

Food waste transported along the first conveyors 19 and 20 described above is selectively introduced into the reservoirs 21 and 22 (shown in FIG. 5). That is, when the food waste reaches the predetermined amount (level) which is arbitrarily set by being supplied to the storage tank 21 along the above-mentioned first conveyor 19, the detection signal according to the detection of the sensor which is not shown which detects this is mentioned above. As input to one controller C, the controller C converts the driving direction of the drive motor 18 of the distributor 17 described above to convert the driving direction of the screw conveyor 16 (shown in FIG. 4). being).

Therefore, the dispenser 17 blocks the supply of food waste to the first conveyor 19 described above, and at the same time supplies the food waste to the first conveyor 20 to dispose of food waste in the storage tank 22 for 2 hours. Store for 4 hours (see S60).

At this time, while the food waste is filled in the storage tank 22 described above, the food waste supplied to the storage tank 21 is integrally fixed to the rod due to the expansion and contraction of the air cylinder 25 mounted below the storage tank 21. As the opening 21a of the reservoir 21 is opened by the sliding movement of the slide gate 26, it is transferred to the fermentation and the dryer 35 or 36 (shown in FIG. 6).

In the above-described fermentation and dryers 35 and 36, the food wastes are fermented and dried under atmospheric conditions maintaining a predetermined temperature and humidity (see S70), and then supplied to the classifier 38 according to the belt conveyor 37 driving. (Shown in FIG. 6).

The food waste flowing into the sorter 38 can be sorted by a predetermined particle according to the type of livestock feed while moving in one direction by the vibration and the inclination of its own generated when the drive motor is driven (shown in FIG. 7). . That is, according to the size (mesh) of the screen net installed in the classifier 38, the size of the particles according to the type of livestock feed can be classified into large, medium and small (see S80).

The livestock feed classified by predetermined particles is conveyed to the packing machine 40 which is sealed-packed on the packing table via the belt conveyor 39 (shown in FIG. 8). In other words, the livestock feed supplied to the packing machine 40 is measured to a predetermined weight and then sealed the inlet of the package by a predetermined sealing means (see S90).

As described above, according to a preferred embodiment, it is not necessary to use a disposable bag at the time of collection so that food waste, including residue left from a restaurant, etc., can be recycled as livestock feed, so that food waste using a disposable bag is landfilled and incinerated. Soil and environmental pollution generated during the operation can be greatly prevented.

In the process of manufacturing food waste from livestock feed, foreign substances such as metals, which are harmful to livestock, can be completely selected by hand.

Feeding livestock feed using food waste to livestock farmers can significantly reduce the economic burden of buying livestock feed.

By automating the operation of the entire process of crushing, dehydrating, fermenting, drying, and packing the collected food waste, it is possible to minimize the cost of follow-up maintenance due to unauthorized operation.

Claims (6)

Hopper to which food waste is put; A foreign matter sorter which visually checks foreign substances harmful to the livestock included in the food waste conveyed from the hopper and separates them by manual labor; A pulverizer for crushing food wastes transported when the duct-shaped flight conveyor is driven after the foreign matter is sorted out; A dehydrator for dehydrating a part of moisture contained in the food waste crushed to a predetermined size by screw compression; It is formed in the transfer section between the dehydrator and the pair of first conveyor, the food waste discharged from the dehydrator is selectively selected to the pair of first conveyor according to the driving direction of the screw conveyor linked to drive the drive motor of its own Dispenser for dispensing and supplying to Each of the food wastes discharged from the distributor and transported through the pair of first conveyors are independently stored, and when the blades formed on the drive shaft are rotated, the food wastes are first introduced to prevent the food wastes from being deposited on the bottom thereof. A storage tank for stirring to facilitate the fermentation of food waste; A fermentation and drying machine for fermenting and drying food waste discharged from the storage tank and conveyed through a pair of second conveyors under atmospheric conditions maintaining a predetermined temperature and humidity; A sorter for classifying and sorting the food waste by predetermined particles according to the type of animal feed while transporting the food waste conveyed from the fermentation and the dryer in one direction by vibration and self inclination of the driving motor; A packing machine for accommodating livestock feed of predetermined particles passing through the sorter and sealingly packing by predetermined packing means; And Food waste treatment apparatus characterized in that it comprises a controller for automatically controlling the operation of the series unit. The method of claim 1, wherein the foreign material selector; A tunnel-shaped casing having a cover formed as a transparent material so as to see the inside from the outside so as to be opened and closed on the left and right sides, respectively; An illumination lamp for irradiating the food waste to visually identify foreign substances such as iron contained in the food waste conveyed along the belt conveyor; And Food waste treatment apparatus is formed on the left, right cover, characterized in that it comprises an insertion hole into which the operator's hand is inserted so as to withdraw the foreign matter when checking the foreign matter contained in the food waste. The method of claim 2, wherein the foreign material selector; And a dust collector for sucking and discharging dust generated in the casing to prevent scattering of the food waste conveyed along the belt conveyor. The food and drink according to claim 1, further comprising a slide gate formed below the reservoir and slidingly moved in accordance with expansion and contraction of an air cylinder driven according to a signal input from the controller. Waste disposal device. According to claim 1, wherein the flight conveyor; A drive motor mounted outside the casing of the duct shape and driven according to a signal input from the controller; A chain installed at the left and right sides of the casing to be interlocked when the driving motor is driven; And A knife having an elastic force that is fixed to the lower side of the supporter formed integrally by maintaining a predetermined interval in the driving direction of the chain between the chains, and supplies the food waste conveyed from the foreign matter separator to the grinder when the driving motor is driven; Food waste treatment apparatus characterized in that it comprises. Inputting food waste into the hopper; The foreign material harmful to livestock is visually checked by an illumination lamp for irradiating food waste that is discharged from the hopper and transported along the belt conveyor. When the foreign material is checked, it is inserted into an opening formed in a cover that can be opened and closed on the left and right sides. A foreign material sorting step of inserting and separating a worker's hand; A pulverizing step of pulverizing the food waste conveyed when the duct-shaped flight conveyor is driven to the predetermined size due to the rotation of the blade after the foreign matter is selected; A dehydration step of dewatering a part of moisture contained in the food waste to be crushed and conveyed by screw compression; A distribution step of selectively distributing and supplying the dehydrated food waste to a pair of first conveyors according to a driving direction of its screw conveyor; A storage step of separately storing the distributed food waste, preventing the first food waste from being deposited on its bottom due to the rotation of the blade, and having a process of stirring to facilitate fermentation of the food waste; A fermentation and drying step of fermenting and drying the food waste discharged from the storage step under atmospheric conditions maintaining a predetermined temperature and humidity; A sorting step of sorting and classifying the fermented and dried food waste in one direction by vibrating the driving motor and inclination of the food waste in one direction according to the type of livestock feed; And Food waste disposal method comprising the step of receiving and packing the sorted livestock feed sealed packaging by means of packaging.