Perishable waste disposal device and working method thereof

Abstract

The application discloses a perishable garbage treatment device and a working method thereof, which comprises a perishable garbage crushing and extruding reduction device, a perishable garbage bucket elevator, a vacuum drying device and a solid residue oil-water separation device. A turnover garbage bucket hanging plate is arranged on the perishable garbage bucket elevator. A feeding hopper matched with the perishable garbage bucket elevator is arranged on the top of the perishable garbage crushing and extruding reduction device. A feeding inlet of the vacuum drying device is connected with a discharging outlet of the perishable garbage crushing and extruding reduction device through a suction pipe. The garbage bucket elevator is designed to improve the degree of automation and garbage treatment efficiency. The garbage crushing and extruding reduction device and the vacuum drying device are communicated through the suction pipe of vacuum suction, so that the garbage crushing, extruding and drying processes are smooth and reliable, and the garbage jamming phenomenon is eliminated. The solid residue oil-water separation device is matched, so that the waste water and oil mixture can be treated and recycled in time, the environment is protected, and the garbage treatment cost is reduced.

Description

Technical Field

[0001] This invention belongs to the field of energy-saving and environmental protection equipment technology, specifically a perishable waste treatment device and its working method. Background Technology

[0002] Perishable waste, due to its rapid decomposition and the generation of odors and even toxic gases that pollute the environment, requires specialized treatment equipment. However, current conventional perishable waste treatment equipment suffers from the following drawbacks: 1. Low processing efficiency: Existing perishable waste treatment equipment generally suffers from long process flows and low processing efficiency. The equipment is simple and not enclosed, resulting in low production efficiency, poor working conditions, and high labor intensity for workers. 2. Equipment prone to clogging: Due to the complex composition of perishable waste, often mixed with lightweight materials such as packaging paper, foam bags, and plastic bags, the treatment equipment is prone to serious problems such as entanglement and malfunctions during operation. 3. Insufficient automation: Most equipment is non-automatic, lacking a front-end crushing and bag-removal pre-treatment system, making fully automated processing impossible. Summary of the Invention

[0003] To address the deficiencies and shortcomings of the existing technology, this invention provides a waste bin lifting machine designed into a waste crushing, compression, and volume reduction device, thereby improving its automation level and waste treatment efficiency. Simultaneously, the waste crushing, compression, and volume reduction device and the vacuum drying device are connected through a vacuum suction pipe to ensure smooth and reliable operation of the waste crushing, compression, and drying processes, preventing waste blockage. Furthermore, a solid-slag-oil-water separation device is included to ensure timely treatment and recycling of wastewater and waste oil mixtures, protecting the environment while reducing waste treatment costs. This invention provides a perishable waste treatment device and its operating method.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a perishable waste treatment device, comprising a perishable waste crushing, pressing and reducing device, a perishable waste bin elevator installed on the feeding side of the perishable waste crushing, pressing and reducing device, a vacuum drying device connected to the discharging side of the perishable waste crushing, pressing and reducing device, and a solid-slag-oil-water separation device for treating wastewater and waste oil generated during the operation of the perishable waste crushing, pressing and reducing device and the vacuum drying device. The perishable waste bin elevator is equipped with a tilting garbage bin hanging plate, and the top of the perishable waste crushing, pressing and reducing device is equipped with a feeding hopper that cooperates with the perishable waste bin elevator. The feeding port of the vacuum drying device is connected to the discharging port of the perishable waste crushing, pressing and reducing device through a suction pipe.

[0005] This invention incorporates a garbage bin elevator into the garbage crushing, compression, and volume reduction device, enhancing its automation level and thus improving garbage processing efficiency. Simultaneously, the garbage crushing, compression, and volume reduction device and the vacuum drying device are connected via a vacuum suction pipe, ensuring smooth and reliable operation of the garbage crushing, compression, and drying processes, and preventing garbage blockage. Furthermore, a solid-slag-oil-water separation device is included to ensure that wastewater and waste oil mixtures can be treated and recycled in a timely manner, protecting the environment while reducing garbage processing costs.

[0006] Preferably, the perishable waste bin elevator is installed on the front of the perishable waste crushing, squeezing and reducing device, the discharge port of the perishable waste crushing, squeezing and reducing device is located on the lower back side of the perishable waste crushing, squeezing and reducing device, and the feed port of the vacuum drying device is located on the upper front side of the vacuum drying device.

[0007] This structure facilitates the feeding and discharging of materials into the perishable waste crushing, extrusion, and weight reduction device, and also facilitates the feeding of materials into the vacuum drying device.

[0008] Preferably, a perishable waste crushing mechanism is provided below the feed hopper, and a screw extrusion conveying mechanism is connected to the discharge end of the perishable waste crushing mechanism. The discharge end of the screw extrusion conveying mechanism is connected to the discharge port of the perishable waste crushing and extrusion reduction device.

[0009] This structure ensures that the perishable waste crushing, extrusion and volume reduction device crushes and extrudes perishable waste smoothly and reliably, thus ensuring its volume reduction effect.

[0010] Preferably, the vacuum drying device is equipped with a drying conveying mechanism for drying and conveying materials, and a vacuum negative pressure mechanism for sucking materials from the perishable waste crushing and compression reduction device to the drying conveying mechanism through a suction pipe.

[0011] This structure ensures that the material from the perishable waste crushing and compression reduction device is smoothly drawn into the vacuum drying device, thus ensuring the drying and conveying effect of the vacuum drying device.

[0012] Preferably, the vacuum drying device has a material outlet on one side of the lower part, and the drying conveying mechanism includes a drying drum and a reciprocating conveying screw mechanism disposed inside the drying drum. The feeding end of the drying drum is connected to a suction pipe, and the discharging end of the drying drum is connected to a material outlet.

[0013] This structure ensures that the vacuum drying device dries materials more smoothly and reliably, and that the dried materials are transported more smoothly.

[0014] Preferably, the reciprocating conveying screw mechanism controls the position of the material in the drying drum by rotating it forward and backward. During drying, the material moves back and forth repeatedly in both directions, so that the material is heated evenly inside. When discharging, it only rotates forward to make the material move in the discharge direction and push the material out of the drying drum.

[0015] This structure further ensures the drying and weight reduction effect of the vacuum drying device on materials.

[0016] Preferably, the solid-sludge oil-water separation device includes an oil-water separation tank, a solid-sludge filter, an oil removal roller, and an oil skimmer disposed inside the oil-water separation tank. The interior of the oil-water separation tank is divided into a sedimentation zone, an oil-water separation zone, and an overflow zone by two partitions. The solid-sludge filter is disposed inside the sedimentation zone. A mixed wastewater inlet and a flushing water inlet, cooperating with the solid-sludge filter, are provided on the upper part of one side of the oil-water separation tank. The oil removal roller and the oil skimmer are disposed in cooperation with each other on the upper part of the oil-water separation zone. A [further details about the other side of the oil-water separation tank are missing]. The device has an oil drain port for the oil scraper and an overflow port for the overflow area. The perishable waste crushing, squeezing and reducing device and the vacuum drying device are both equipped with mixed waste liquid discharge ports for connecting to the mixed waste liquid inlet. The lower part of the other side of the oil-water separator is equipped with a first drain port for the sedimentation area and a second drain port for the oil-water separation area. The first and second drain ports are located on the same side of the oil-water separator as the oil drain port and the overflow port. The first and second drain ports are located on the opposite side of the oil-water separator as the mixed waste liquid inlet and the flushing water inlet.

[0017] Preferably, the two partitions are a first partition located between the sedimentation zone and the oil-water separation zone, and a second partition located between the oil-water separation zone and the overflow zone. The bottom of the first partition is fixed to the inner bottom of the oil-water separation tank, and a first opening is left between the top of the first partition and the inner top of the oil-water separation tank. The top of the first partition is fixed to the inner top of the oil-water separation tank, and a second opening is left between the bottom of the second partition and the inner bottom of the oil-water separation tank.

[0018] Preferably, the front of the perishable waste crushing and compression reducing device is provided with a lifting guide rail that matches the flip-type garbage bin hanging plate, and the flip-type garbage bin hanging plate is provided with several slots and hanging holes; the width of the lifting guide rail matches the width of the feeding hopper, the side of the perishable waste crushing and compression reducing device is provided with several lower ventilation holes, and the top of the vacuum drying device and the top of the perishable waste crushing and compression reducing device are both provided with upper ventilation holes.

[0019] This structure ensures stable and reliable lifting of the garbage bin, while also ensuring the ventilation effect of the perishable waste crushing, compression, and volume reduction device and the vacuum drying device.

[0020] A method for operating a perishable waste treatment device includes the following steps: S1. The perishable waste elevator lifts perishable waste in buckets and pours it into the feed hopper; S2. The perishable waste crushing, extrusion and reduction device crushes the perishable waste entering from the feed hopper into particles with a particle size of less than 10mm, and then removes oil and water from the perishable waste through the spiral extrusion action. S3. The vacuum drying device provides vacuum suction to draw the reduced perishable waste into the device through the suction pipe. Under high temperature and a certain vacuum conditions, the perishable waste is further dried and reduced in volume, while being sterilized and disinfected. The final product can be used as raw material for animal feed. S4. Wastewater and waste oil generated throughout the process can be separated by a solid-slag oil-water separation device. Solid slag can be separated and treated, waste oil can be recycled and reused, and wastewater can be discharged into the city's sewage system after purification to meet standards.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: a garbage bin elevator is designed on the garbage crushing, squeezing and reducing device to improve its automation level, thereby improving garbage treatment efficiency. At the same time, the garbage crushing, squeezing and reducing device and the vacuum drying device are connected through a vacuum suction pipe to ensure that the series of processes of garbage crushing, squeezing and drying are smooth and reliable, and to prevent garbage blockage. In addition, a solid slag oil-water separation device is provided to ensure that the wastewater and waste oil mixture can be treated and recycled in a timely manner, protecting the environment while reducing garbage treatment costs. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a side view of the present invention; Figure 3 This is a top view of the present invention; Figure 4 This is a schematic diagram of the solid-slag-oil-water separation device of the present invention; Figure 5 This is a top view schematic diagram of the solid slag oil-water separation device of the present invention; In the diagram: 1. Perishable waste crushing and compression reduction device; 2. Perishable waste bin elevator; 3. Vacuum drying device; 4. Solid slag oil-water separation device; 5. Tilting garbage bin hanging plate; 6. Feed hopper; 7. Suction pipe; 8. Mixed waste liquid inlet; 9. Rinse water inlet; 10. Oil outlet; 11. First water outlet; 12. Second water outlet; 13. Material outlet; 14. Lower ventilation hole; 15. Upper ventilation hole; 16. Overflow port; 17. Solid slag filter; 18. Oil removal roller; 19. Oil scraper; 20. Oil-water separation tank; 21. First partition; 22. Second partition; 23. First opening; 24. Second opening; 25. Lifting guide rail. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0024] like Figure 1-3 As shown, a perishable waste treatment device includes a perishable waste crushing, squeezing and reducing device 1, a perishable waste bin elevator 2 installed on the feeding side of the perishable waste crushing, squeezing and reducing device 1, a vacuum drying device 3 connected to the discharging side of the perishable waste crushing, squeezing and reducing device 1, and a solid-slag-oil-water separation device 4 for treating wastewater and waste oil generated during the operation of the perishable waste crushing, squeezing and reducing device 1 and the vacuum drying device 3. The perishable waste bin elevator 2 is equipped with a tilting garbage bin hanging plate 5. The top of the perishable waste crushing, squeezing and reducing device 1 is equipped with a feeding hopper 6 that cooperates with the perishable waste bin elevator 2. The feeding port of the vacuum drying device 3 is connected to the discharging port of the perishable waste crushing, squeezing and reducing device 1 through a suction pipe 7.

[0025] The perishable waste bin elevator 2 is installed on the front of the perishable waste crushing, squeezing and reducing device 1. The discharge port of the perishable waste crushing, squeezing and reducing device 1 is located on the lower back side of the perishable waste crushing, squeezing and reducing device 1. The feed port of the vacuum drying device 3 is located on the upper front side of the vacuum drying device 3.

[0026] Below the feed hopper 6 is a perishable waste crushing mechanism. The discharge end of the perishable waste crushing mechanism is connected to a screw extrusion conveying mechanism. The discharge end of the screw extrusion conveying mechanism is connected to the discharge port of the perishable waste crushing and extrusion reduction device 1.

[0027] The vacuum drying device 3 is equipped with a drying conveying mechanism for drying and conveying materials, and a vacuum negative pressure mechanism for sucking materials from the perishable waste crushing, squeezing and reducing device 1 through the suction pipe 7 into the drying conveying mechanism.

[0028] The vacuum drying device 3 has a material outlet 13 on one side of the lower part. The drying conveying mechanism includes a drying drum and a reciprocating conveying screw mechanism set inside the drying drum. The feeding end of the drying drum is connected to the suction pipe 7, and the discharging end of the drying drum is connected to the material outlet 13.

[0029] The reciprocating conveyor screw mechanism controls the position of the material in the drying drum by rotating it forward and backward. During drying, the material moves back and forth repeatedly, so that the material is heated evenly inside. When discharging, it only rotates forward to make the material move in the discharge direction and push the material out of the drying drum. Example 2

[0030] like Figure 4-5 As shown, the solid-sludge oil-water separation device 4 includes an oil-water separation tank 20, a solid-sludge filter 17, an oil removal roller 18, and an oil skimmer 19 disposed inside the oil-water separation tank 20. The interior of the oil-water separation tank 20 is divided into a sedimentation zone, an oil-water separation zone, and an overflow zone by two partitions. The solid-sludge filter 17 is disposed inside the sedimentation zone. A mixed waste liquid inlet 8 and a flushing water inlet 9 are provided on the upper side of one side of the oil-water separation tank 20 to cooperate with the solid-sludge filter 17. The oil removal roller 18 and the oil skimmer 19 are disposed in cooperation with each other on the upper part of the oil-water separation zone. A corresponding oil skimmer is provided on the upper side of the other side of the oil-water separation tank 20. The oil outlet 10 of the device 19 and the overflow outlet 16 of the overflow area are provided. The perishable waste crushing and compression reduction device 1 and the vacuum drying device 3 are both provided with mixed waste liquid discharge outlets for connecting the mixed waste liquid inlet 8). The lower part of the other side of the oil-water separator 20 is provided with a first water outlet 11 for the sedimentation area and a second water outlet 12 for the oil-water separation area. The first water outlet 11 and the second water outlet 12 are located on the same side of the oil-water separator 20 as the oil outlet 10 and the overflow outlet 16. The first water outlet 11 and the second water outlet 12 are located on the opposite side of the oil-water separator 20 as the mixed waste liquid inlet 8 and the flushing water inlet 9.

[0031] The two partitions are a first partition 21 located between the sedimentation zone and the oil-water separation zone, and a second partition 22 located between the oil-water separation zone and the overflow zone. The bottom of the first partition 21 is fixed to the inner bottom of the oil-water separation tank 20. A first opening 23 is left between the top of the first partition 21 and the inner top of the oil-water separation tank 20. The top of the first partition 22 is fixed to the inner top of the oil-water separation tank 20. A second opening 24 is left between the bottom of the second partition 22 and the inner bottom of the oil-water separation tank 20.

[0032] Wastewater extruded from perishable waste (such as swill) by a screw extrusion device is a mixture of solid residue, oil and water. The waste oil can be recycled and refined, the wastewater needs to be purified to meet discharge standards, and the waste residue needs to be extracted for harmless treatment. The separation of solid residue, oil and water is accomplished by a solid residue oil-water separation device.

[0033] The device consists of several parts, including an oil-water separator, a solids filter, an oil removal drum, and an oil skimmer. The oil-water separator has two partitions, which are divided into three areas according to the direction of water flow: sedimentation zone, oil-water separation zone, and overflow zone. The wastewater is initially separated into oil and water through the partitions. The mixed wastewater entering the oil-water separator first enters the solids filter (with a certain mesh size filter screen on the outside) to perform preliminary filtration of the solids in the mixed wastewater. Some of the solids that escape from the solids filter continue to remain in the sedimentation zone through sedimentation. After filtration and sedimentation, the oil-water mixture enters the oil-water separation zone after passing through the first baffle. In the oil-water separation zone, the oil floats on the water surface. Since the oil-water separation zone and the overflow zone are connected at the bottom of the second baffle, the liquid level in these two zones is determined by the height of the overflow port. At this time, the liquid level is just enough to ensure that the oil removal drum is immersed in the floating oil. At this time, the oil removal drum is slowly rotated counterclockwise by the externally provided rotational power. Due to the oil adsorption effect, the oil is adsorbed on the outer wall of the drum and carried towards the oil scraper. The oil scraper is a scraper with an oil-resistant and wear-resistant rubber at the front end. When the oil scraping roller moves to the scraper, the oil is scraped off by the scraper, separated from the oil removal roller, enters the oil guide groove, and is discharged through the oil drain port connected to the oil guide groove. After passing through the filter residue and removing the oil, the wastewater enters the overflow area and is discharged through the overflow port; In order to ensure that the oil removal roller is always submerged in the liquid level line after oil removal during the oil removal process, and to fully extract the waste oil mixed with solids in the solids filter, it is necessary to inject flushing water into the flushing water inlet in a timely manner throughout the process. After all the mixed wastewater has been drained and all the oil in the oil-water separation zone has been completely removed, the first and second drain outlets at the bottom can be opened to release the wastewater from the oil-water separation tank. Example 3

[0034] The front of the perishable waste crushing, squeezing and reducing device 1 is provided with a lifting guide rail 25 that matches the flip-type garbage bin hanging plate 5. The flip-type garbage bin hanging plate 5 is provided with several slots and hanging holes. The width of the lifting guide rail 25 matches the width of the feeding hopper 6. The side of the perishable waste crushing, squeezing and reducing device 1 is provided with several lower ventilation holes 14. The top of the vacuum drying device 3 and the top of the perishable waste crushing, squeezing and reducing device 1 are both provided with upper ventilation holes 15. Example 4

[0035] A method for operating a perishable waste treatment device includes the following steps: S1. The perishable waste elevator lifts perishable waste in buckets and pours it into the feed hopper; S2. The perishable waste crushing, extrusion and reduction device crushes the perishable waste entering from the feed hopper into particles with a particle size of less than 10mm, and then removes oil and water from the perishable waste through the spiral extrusion action. S3. The vacuum drying device provides vacuum suction to draw the reduced perishable waste into the device through the suction pipe. Under high temperature and a certain vacuum conditions, the perishable waste is further dried and reduced in volume, while being sterilized and disinfected. The final product can be used as raw material for animal feed. S4. Wastewater and waste oil generated throughout the process can be separated by a solid-slag oil-water separation device. Solid slag can be separated and treated, waste oil can be recycled and reused, and wastewater can be discharged into the city's sewage system after purification to meet standards.

[0036] The perishable waste crushing mechanism, spiral extrusion conveying mechanism, vacuum negative pressure mechanism, reciprocating conveying spiral mechanism, and drying drum in this invention are all conventional components purchased from the market. Their specific structures and working processes are all conventional methods, so they will not be described in detail.

[0037] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A perishable waste treatment device, characterized in that: The device includes a perishable waste crushing, squeezing and reducing device (1), a perishable waste bin elevator (2) installed on the feed side of the perishable waste crushing, squeezing and reducing device (1), a vacuum drying device (3) connected to the discharge side of the perishable waste crushing, squeezing and reducing device (1), and a solid slag oil-water separation device (4) for treating the wastewater and waste oil generated during the operation of the perishable waste crushing, squeezing and reducing device (1) and the vacuum drying device (3). The perishable waste bin elevator (2) is equipped with a flip-type garbage bin hanging plate (5). The top of the perishable waste crushing, squeezing and reducing device (1) is equipped with a feed hopper (6) that cooperates with the perishable waste bin elevator (2). The feed port of the vacuum drying device (3) is connected to the discharge port of the perishable waste crushing, squeezing and reducing device (1) through a suction pipe (7).

2. The perishable waste treatment device according to claim 1, characterized in that: The perishable waste bin elevator (2) is installed on the front of the perishable waste crushing, squeezing and reducing device (1), the discharge port of the perishable waste crushing, squeezing and reducing device (1) is located on the lower back side of the perishable waste crushing, squeezing and reducing device (1), and the feed port of the vacuum drying device (3) is located on the upper front side of the vacuum drying device (3).

3. The perishable waste treatment device according to claim 2, characterized in that: Below the feed hopper (6) is a perishable waste crushing mechanism. The discharge end of the perishable waste crushing mechanism is connected to a spiral extrusion conveying mechanism. The discharge end of the spiral extrusion conveying mechanism is connected to the discharge port of the perishable waste crushing and extrusion reduction device (1).

4. The perishable waste treatment device according to claim 1, characterized in that: The vacuum drying device (3) is equipped with a drying conveying mechanism for drying and conveying materials, and a vacuum negative pressure mechanism for sucking materials from the perishable waste crushing and compression reduction device (1) through the suction pipe (7) into the drying conveying mechanism.

5. The perishable waste treatment device according to claim 4, characterized in that: The vacuum drying device (3) has a material outlet (13) on one side of the lower part. The drying conveying mechanism includes a drying barrel and a reciprocating conveying screw mechanism set inside the drying barrel. The feeding end of the drying barrel is connected to the suction pipe (7), and the discharging end of the drying barrel is connected to the material outlet (13).

6. The perishable waste treatment device according to claim 5, characterized in that: The reciprocating conveying screw mechanism controls the position of the material in the drying drum by rotating it forward and backward. During drying, the material moves back and forth repeatedly in both directions, so that the material is heated evenly inside. When discharging, it only rotates forward to make the material move in the discharge direction and push the material out of the drying drum.

7. The perishable waste treatment device according to claim 1, characterized in that: The solid-sludge oil-water separation device (4) includes an oil-water separation tank (20), a solid-sludge filter (17), an oil removal roller (18), and an oil skimmer (19) installed inside the oil-water separation tank (20). The interior of the oil-water separation tank (20) is divided into a sedimentation zone, an oil-water separation zone, and an overflow zone by two partitions. The solid-sludge filter (17) is installed inside the sedimentation zone. A mixed waste liquid inlet (8) and a flushing water inlet (9) are provided on the upper side of one side of the oil-water separation tank (20) to cooperate with the solid-sludge filter (17). The oil removal roller (18) and the oil skimmer (19) are installed in cooperation with each other on the upper part of the oil-water separation zone. A scraper (19) is provided on the upper side of the other side of the oil-water separation tank (20). The oil outlet (10) and the overflow outlet (16) of the overflow area are provided on the perishable waste crushing and squeezing reduction device (1) and the vacuum drying device (3). The oil-water separator (20) is provided with a first water outlet (11) of the sedimentation area and a second water outlet (12) of the oil-water separator (20). The first water outlet (11) and the second water outlet (12) are located on the same side of the oil-water separator (20) as the oil outlet (10) and the overflow outlet (16). The first water outlet (11) and the second water outlet (12) are located on the opposite side of the oil-water separator (20) as the mixed waste inlet (8) and the flushing water inlet (9).

8. The perishable waste treatment device according to claim 7, characterized in that: The two partitions are a first partition (21) located between the sedimentation zone and the oil-water separation zone and a second partition (22) located between the oil-water separation zone and the overflow zone. The bottom of the first partition (21) is fixed to the inner side of the bottom of the oil-water separation tank (20). A first opening (23) is left between the top of the first partition (21) and the inner side of the top of the oil-water separation tank (20). The top of the first partition (22) is fixed to the inner side of the top of the oil-water separation tank (20). A second opening (24) is left between the bottom of the second partition (22) and the inner side of the bottom of the oil-water separation tank (20).

9. The perishable waste treatment device according to claim 1, characterized in that: The front of the perishable waste crushing and compression reducing device (1) is provided with a lifting guide rail (25) that matches the flip-type garbage bin hanging plate (5). The flip-type garbage bin hanging plate (5) is provided with several slots and hanging holes. The width of the lifting guide rail (25) matches the width of the feeding hopper (6). The side of the perishable waste crushing and compression reducing device (1) is provided with several lower ventilation holes (14). The top of the vacuum drying device (3) and the top of the perishable waste crushing and compression reducing device (1) are both provided with upper ventilation holes (15).

10. A method of operating the perishable waste treatment device as described in claim 6, characterized in that: Includes the following steps: S1. The perishable waste elevator lifts perishable waste in buckets and pours it into the feed hopper; S2. The perishable waste crushing, extrusion and reduction device crushes the perishable waste entering from the feed hopper into particles with a particle size of less than 10mm, and then removes oil and water from the perishable waste through the spiral extrusion action. S3. The vacuum drying device provides vacuum suction to draw the reduced perishable waste into the device through the suction pipe. Under high temperature and a certain vacuum conditions, the perishable waste is further dried and reduced in volume, while being sterilized and disinfected. The final product can be used as raw material for animal feed. S4. Wastewater and waste oil generated throughout the process can be separated by a solid-slag oil-water separation device. Solid slag can be separated and treated, waste oil can be recycled and reused, and wastewater can be discharged into the city's sewage system after purification to meet standards.

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