An integrated kitchen waste recycling and processing system

Abstract

The present invention relates to the technical field of waste treatment, and discloses an integrated kitchen waste recycling and treatment system, comprising a first treatment unit and a second treatment unit, wherein the first treatment unit comprises a pulverizing device, a pretreatment device, a solid-liquid separation device and a composting box connected in sequence, wherein the pretreatment device is used to perform wet heat pretreatment on the kitchen waste, the composting box is connected to the solid outlet of the solid-liquid separation device, the second treatment unit comprises a liquid fertilizer tank, the liquid outlet of the solid-liquid separation device is connected to the liquid inlet of the liquid fertilizer tank, and the liquid fertilizer tank comprises an oil-water separation component. The integrated kitchen waste recycling and treatment system provided by the present invention adopts graded and phased fermentation, can process kitchen waste to the maximum extent, obtain three products of waste oil, liquid fertilizer and solid fertilizer, and can also operate continuously, and is suitable for schools, restaurants and construction sites to carry out separate kitchen waste treatment.

Description

Technical Field

[0001] The present invention relates to the technical field of garbage disposal, and in particular to an integrated kitchen garbage recycling and disposal system. Background Art

[0002] With the improvement of residents' living standards and the rapid development of the catering industry, the amount of food waste discharged is increasing. According to statistics, cities generate more than 60 million tons of food waste each year, more than 160,000 tons per day. How to deal with large quantities of food waste to achieve reduction has become an urgent problem to be solved. At the same time, due to the "four high characteristics" of high oil content, water content, salt content and organic matter content, food waste is very easy to rot and deteriorate, emit bad odors, and is also very easy to breed pathogenic microorganisms. It needs to be treated quickly and effectively, otherwise it will cause serious pollution to the environment. In recent years, some areas have begun to implement garbage classification, and food waste can be collected separately. On the one hand, it is conducive to the separate recycling and treatment of food waste. On the other hand, there is a greater need for technologies and devices for efficient and rapid recycling and treatment of food waste.

[0003] On the other hand, many cities are advocating green living and do not advocate the use of chemical fertilizers in the cultivation process. The fertilizer obtained after the treatment of food waste is an excellent biologically active fertilizer, which not only increases soil fertility, but is also green and environmentally friendly, which is beneficial to environmental protection. Therefore, how to convert food waste into organic fertilizer for municipal gardening, greening projects, etc. is a problem that needs to be solved. Summary of the invention

[0004] The embodiment of the present invention provides an integrated restaurant kitchen waste recycling and processing system, which is used to solve or partially solve the problem of how to convert restaurant kitchen waste into organic fertilizer.

[0005] An embodiment of the present invention provides an integrated restaurant kitchen waste recycling and processing system, comprising a box body and a first processing unit and a second processing unit arranged inside the box body, wherein the first processing unit comprises a crushing device, a pretreatment device, a solid-liquid separation device and a composting box connected in sequence, wherein the pretreatment device is used to perform wet heat pretreatment on the restaurant kitchen waste, the composting box is connected to the solid outlet of the solid-liquid separation device, the second processing unit comprises a liquid fertilizer tank, the liquid outlet of the solid-liquid separation device is connected to the liquid inlet of the liquid fertilizer tank, and an oil-water separation component is arranged inside the liquid fertilizer tank.

[0006] On the basis of the above scheme, the oil-water separation component includes an aerator, an oil scraper, a collecting plate and a rotating shaft; the aerator is fixed to the lower part of the interior of the liquid fertilizer tank, the rotating shaft is fixed to the upper part of the interior of the liquid fertilizer tank and is connected to a rotating shaft motor, one side of the oil scraper is fixedly connected to the rotating shaft, and the other side is connected to the inner wall of the liquid fertilizer tank, the collecting plate is fixedly arranged between the rotating shaft and the inner wall of the liquid fertilizer tank, the collecting plate is a hollow structure and oil inlet grooves are respectively provided on both side surfaces of the collecting plate.

[0007] Based on the above scheme, an oil outlet connected to the outside is opened below the side where the collecting plate is connected to the inner wall of the liquid fertilizer tank; a wedge block is provided on the inner side of the bottom surface of the collecting plate, and the end of the wedge block with a smaller thickness is connected to the oil outlet.

[0008] On the basis of the above solution, a feed port connecting the crushing device and the outside is opened on the box body, and a first door body is installed at the feed port.

[0009] On the basis of the above scheme, a bracket is rotatably connected to the feed port, and the bracket is used to support the trash can and rotate to dump the trash can; the end of the bracket connected to the feed port is also connected to a diversion nozzle, and the diversion nozzle is used to be clamped at the opening of the trash can.

[0010] On the basis of the above scheme, the crushing device includes a crushing bucket, a crusher and a storage box. The crusher is arranged inside the crushing bucket, and the storage box is connected to the bottom of the crushing bucket. The top of the storage box is provided with an inlet and the side is provided with an outlet. The inlet is connected to the crushing bucket, and the outlet is connected to the pretreatment device through a conveying device.

[0011] On the basis of the above scheme, the pretreatment device includes a pretreatment barrel and a heating jacket arranged outside the pretreatment barrel, a first stirring shaft is arranged inside the pretreatment barrel, and a first blade is arranged on the first stirring shaft.

[0012] Based on the above scheme, a spiral blade is provided inside the solid-liquid separation device, the pretreatment device is connected to the solid-liquid separation device at a corresponding position at one end of the spiral blade, the solid outlet of the solid-liquid separation device is arranged at a corresponding position at the other end of the spiral blade, and the liquid outlet of the solid-liquid separation device is arranged at the bottom.

[0013] On the basis of the above solution, an exhaust port is provided on the top of the composting box, and the exhaust port is connected to the odor treatment device.

[0014] On the basis of the above scheme, the compost box is provided with a solid fertilizer outlet, an operating space is provided between the compost box and the inner wall of the box body, and a second door body is respectively installed at the solid fertilizer outlet and on the box body; a liquid fertilizer discharge pipe is connected to the side of the liquid fertilizer tank, and a discharge valve is provided on the liquid fertilizer discharge pipe.

[0015] An integrated kitchen waste recycling and processing system provided by an embodiment of the present invention is provided with a pretreatment device to perform wet heat pretreatment on the kitchen waste. On the one hand, it can achieve uniform physical and chemical shapes, thereby improving the efficiency of subsequent composting. On the other hand, it can reduce pathogens in the kitchen waste through medium and high temperature cooking, and appropriately increase the temperature to provide a suitable temperature for the composting flora. In addition, the integrated machine adopts graded and phased fermentation, which can maximize the processing of kitchen waste and obtain three products of waste oil, liquid fertilizer, and solid fertilizer. It can also operate continuously and is suitable for schools, restaurants, construction sites, etc. to carry out separate kitchen waste processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the top view of the integrated kitchen waste recycling and treatment system according to an embodiment of the present invention;

[0018] Figure 2 It is a first side structural schematic diagram of the integrated restaurant kitchen waste recycling and processing system according to an embodiment of the present invention;

[0019] Figure 3 It is a structural schematic diagram of an oil-water separation component of an integrated restaurant kitchen waste recycling and processing system according to an embodiment of the present invention;

[0020] Figure 4 It is a front view schematic diagram of an integrated restaurant kitchen waste recycling and processing system according to an embodiment of the present invention;

[0021] Figure 5 It is a second side structural schematic diagram of the integrated restaurant kitchen waste recycling and processing system according to an embodiment of the present invention.

[0022] Description of reference numerals:

[0023] Among them, 1. bracket; 2. rotating shaft; 3. feed port; 4. guide nozzle; 5. first door body; 6. box body; 7. crushing bucket; 8. crusher; 9. storage box; 10. feed port; 11. discharge port; 12. conveying device; 13. pretreatment barrel; 14. first stirring shaft; 15. first stirring shaft motor; 16. first blade; 17. heating jacket; 18. solid outlet; 19. liquid outlet; 20. spiral blade; 21. spiral blade motor; 22. compost box; 23. second stirring shaft; 24. second stirring shaft motor ; 25. T-shaped long blade; 26. T-shaped short blade; 27. Solid fertilizer outlet; 28. Second door; 29. ​​Operating space; 30. Liquid inlet; 31. Liquid fertilizer tank; 32. Aerator; 33. Oil scraper; 34. Collecting plate; 35. Oil inlet trough; 36. Wedge block; 37. Oil outlet; 38. Rotating shaft; 39. Rotating shaft motor; 40. Oil outlet pipe; 41. Liquid fertilizer discharge pipe; 42. Bacteria seed placement port; 43. Bacteria seed tank; 44. Impurity pump; 45. Exhaust port; 46. Odor treatment device; 47. Water tank; 48. Water pump. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] refer to Figure 1The embodiment of the present invention provides an integrated kitchen waste recycling and processing system, which includes a box body 6 and a first processing unit and a second processing unit arranged inside the box body 6. The first processing unit includes a crushing device, a pretreatment device, a solid-liquid separation device and a composting box 22 connected in sequence, wherein the pretreatment device is used to perform wet heat pretreatment on the kitchen waste. The composting box 22 is connected to the solid outlet 18 of the solid-liquid separation device. The second processing unit includes a liquid fertilizer tank 31, and the liquid outlet 19 of the solid-liquid separation device is connected to the liquid inlet 30 of the liquid fertilizer tank 31; an oil-water separation component is arranged inside the liquid fertilizer tank 31.

[0027] The first processing unit is mainly used to crush, pre-treat, separate solid and liquid from kitchen waste in sequence, and compost the separated solid materials to obtain solid fertilizer. The second processing unit is mainly used to separate oil and water from the liquid materials separated by the solid-liquid separation device, and ferment and condition the water materials after oil-water separation to obtain liquid fertilizer.

[0028] The present embodiment provides an integrated kitchen waste recycling and treatment system, in which a pretreatment device is provided to perform wet heat pretreatment on the kitchen waste. On the one hand, the uniformity of the physical and chemical shapes can be achieved, thereby improving the efficiency of subsequent composting. On the other hand, the pathogens in the kitchen waste can be reduced by medium and high temperature steaming, and the temperature can be appropriately increased to provide a suitable temperature for the composting flora. In addition, the integrated machine adopts graded and phased fermentation, which can maximize the treatment of kitchen waste and obtain three products of waste oil, liquid fertilizer and solid fertilizer. It can also operate continuously to achieve immediate production and cleaning of kitchen waste, and is suitable for separate kitchen waste treatment in schools, restaurants and construction sites.

[0029] In addition, a box 6 is provided to encapsulate the integrated kitchen waste recycling and processing system, so that the integrated machine has a high degree of integration, no separate other operations are required outside the facility, no waste gas, waste water and waste residue are discharged, the processing operation is convenient and it is beneficial to improve the utilization efficiency of kitchen waste.

[0030] In addition, the integrated kitchen waste recycling and processing system also proposes to integrate the oil-water separation component into the liquid fertilizer tank 31, so that oil and water separation can be carried out in the liquid fertilizer tank 31 to remove the oil for better liquid fertilizer fermentation; and the setting of a separate oil-water separation device can be avoided, which is beneficial to reducing the volume occupied by the equipment and improving the equipment integration.

[0031] On the basis of the above embodiments, further, referring to Figure 2 and Figure 3The oil-water separation component includes an aerator 32, an oil scraper 33, a collecting plate 34 and a rotating shaft 38; the aerator 32 is fixed to the lower part of the liquid fertilizer tank 31, the rotating shaft 38 is fixed to the upper part of the liquid fertilizer tank 31 and is connected to a rotating shaft motor 39; one side of the oil scraper 33 is fixedly connected to the rotating shaft 38, and the other side is connected to the inner wall of the liquid fertilizer tank 31; the collecting plate 34 is fixedly arranged between the rotating shaft 38 and the inner wall of the liquid fertilizer tank 31; the collecting plate 34 is a hollow structure and oil inlet grooves 35 are respectively arranged on both side surfaces of the collecting plate 34.

[0032] refer to Figure 3 The oil scraper plate 33 is integrally connected to the rotating shaft 38 for rotation. The two sides of the collecting plate 34 are sealed and connected to the inner wall of the liquid fertilizer tank 31 and the rotating shaft 38 respectively. The collecting plate 34 is fixedly arranged and does not rotate with the rotation of the rotating shaft 38. An oil inlet groove 35 is provided on the side of the collecting plate 34 facing the oil scraper plate 33. The oil inlet groove 35 is a slot that runs through the side of the collecting plate 34. The rotating shaft motor 39 is used to drive the rotating shaft 38 to rotate so as to realize the swing of the oil scraper plate 33 between the two sides of the collecting plate 34. Thereby, the oil floating on the liquid surface is scraped into the oil inlet groove and collected inside the collecting plate 34.

[0033] Specifically, the collecting plate 34 can be fixedly connected to the inner wall of the liquid fertilizer tank 31; the collecting plate 34 and the rotating shaft 38 can be sealed and not connected to each other, so as to smoothly realize the rotation of the rotating shaft. Alternatively, the collecting plate 34 can also be connected to the rotating shaft 38 through a bearing; the bearing is fixedly arranged relative to the liquid fertilizer tank, and the collecting plate 34 is fixedly connected to the bearing, and the bearing and the rotating shaft 38 can rotate relative to each other, so that the collecting plate 34 remains stationary when the rotating shaft 38 rotates. At this time, the collecting plate 34 and the inner wall of the liquid fertilizer tank 31 can be sealed. The specific fixing measures of the collecting plate 34 are not limited, and the purpose is to be able to rotate relative to the rotating shaft and effectively collect oil.

[0034] Furthermore, an oil outlet 37 communicating with the outside is provided below the side where the collecting plate 34 is connected to the inner wall of the liquid fertilizer tank 31. The oil outlet 37 can be connected to the oil outlet pipe 40 for collecting oil. A wedge block 36 is provided on the inner side of the bottom surface of the collecting plate 34, and the end of the wedge block 36 with a smaller thickness is connected to the oil outlet 37. That is, the wedge block 36 is a slope, and the lower end is connected to the oil outlet 37, which is used to play a guiding role, so that the oil collected in the collecting plate 34 flows smoothly to the oil outlet 37.

[0035] Specifically, the oil-water separation assembly inside the liquid fertilizer tank 31 includes an oil scraper 33 arranged on the top, a fixed collecting plate 34, a rotating shaft 38, a rotating shaft motor 39 and an aerator 32 at the bottom of the tank body. The collecting plate 34 is tightly fixed between the liquid fertilizer tank wall and the rotating shaft 38. An oil outlet 37 is provided at the bottom end of the connection between the collecting plate 34 and the tank wall, an oil inlet groove 35 is provided on both sides of the collecting plate 34, and a wedge block 36 is provided at the bottom end. After the liquid enters the liquid fertilizer tank 31, it mixes with the tiny bubbles generated by the aerator 32, and the gas floating body with a specific gravity less than that of water rises to the water surface and condenses into floating oil, which forms an oil layer after standing. The shaft motor 39 drives the scraper plate 33 connected to the shaft 38 to swing clockwise and counterclockwise, and the oil is scraped to the collecting plate 34 through the scraper plate 33. The waste oil enters the collecting plate 34 through the oil inlet groove 35 on the collecting plate 34. The wedge block 36 drains the entering waste oil to the oil outlet 37. The oil outlet 37 is connected to the external oil outlet pipe 40. The liquid after oil-water separation is stored in the tank for fermentation.

[0036] Further, refer to Figure 3 The edge of one side where the scraper plate 33 meets the inner wall of the liquid fertilizer tank 31 is pointed. That is, the edge thickness of the scraper plate 33 gradually decreases near the tank wall end to reduce the fluid resistance during rotation.

[0037] On the basis of the above embodiments, further, referring to Figure 1 The top of the compost bin 22 is provided with an exhaust port 45, which is connected to an odor treatment device 46. The odor treatment device 46 can deodorize and disinfect the gas generated during the composting process in the compost bin 22, avoid direct discharge to pollute the air, and improve the environmental protection of the integrated machine.

[0038] On the basis of the above embodiments, further, referring to Figure 1 The liquid fertilizer tank 31 is also provided with a strain introduction port 42, which is connected to the strain tank 43. The liquid fertilizer tank 31 is provided with a strain introduction port 42 for adding strains during the liquid fertilizer fermentation process. For example, during the fermentation process, prokaryotic nitrogen-fixing bacteria can be input from the strain tank 43 into the liquid fertilizer tank 31 through the impurity pump 44, and mixed with the waste liquid for fermentation to produce liquid fertilizer.

[0039] On the basis of the above embodiments, further, referring to Figure 4 The box body 6 is provided with a feed port 3 connecting the crushing device and the outside, and a first door body 5 is installed at the feed port 3. The feed port 3 is the entrance of the kitchen waste. The first door body 5 is installed and can be closed after the waste is poured in to achieve the sealing of the integrated machine.

[0040] On the basis of the above embodiments, further, referring to Figure 5A bracket 1 is rotatably connected to the feed port 3, and the bracket 1 is used to support the trash can and rotate to dump the trash can; one end of the bracket 1 connected to the feed port 3 is also connected to a guide nozzle 4, and the guide nozzle 4 is used to be clamped at the opening of the trash can.

[0041] A bracket 1 and a rotating shaft 2 are provided at the bottom of the feed port 3; the rotating shaft 2 can be fixed at the feed port 3 of the box body 6, and the top of the bracket 1 is rotatably connected to the rotating shaft 2. A support plate can be connected to the bottom of the bracket 1 to support and fix the trash can. The bracket 1 can fix the trash can, and then rotate around the top rotating shaft 2 to pour the trash into the feed port 3. A diversion nozzle 4 is installed on the top of the bracket 1, and the diversion nozzle 4 can clamp the edge of the trash can to prevent the food waste from spilling outside the feed port 3 during the dumping process. The bracket 1 can rotate around the rotating shaft 2 to complete the dumping and recycling steps of the food waste.

[0042] Furthermore, the guide nozzle 4 can be a clamp fixed on the top of the bracket 1, and can clamp and fix the top side wall of the trash can. And the clamp body of the guide nozzle 4 used to clamp the trash can can be an arc-shaped tapered shape, which is used to guide the garbage in the trash can into the feed port 3 to prevent the garbage from spilling.

[0043] Furthermore, the first door body 5 at the feed port 3 can be a double-opening door, which is manually closed after the garbage is dumped to ensure the sealing of the interior of the device.

[0044] Furthermore, the bracket 1 can be detachably installed at the feed port 3, so that the bracket 1 can be disassembled after the garbage is poured in to prevent the closing of the first door 5 from being affected. Specifically, the top of the bracket 1 can be detachably connected to the rotating shaft 2, for example, by a clamp, etc., and the specific connection structure is not limited.

[0045] The bracket 1 can also be installed as a whole below the first door body 5. After dumping the garbage, the bracket 1 can be rotated to the bottom of the first door body 5 to avoid affecting the closing of the first door body 5. The specific connection structure between the bracket 1 and the box body 6 is not limited, and the purpose is to be able to dump the garbage into the feed port 3 by rotation without affecting the closing of the first door body 5.

[0046] Furthermore, the bracket 1 is connected to a driving mechanism, and the driving mechanism drives the bracket 1 to rotate to dump the trash can. The driving mechanism can realize the electric dumping of the trash can, eliminating the need for manual dumping, reducing labor intensity, and improving processing efficiency. Specifically, a motor can be connected to the rotating shaft 2 to drive the rotating shaft 2 to rotate to realize the rotation of the bracket 1; the driving mechanism can also be other structures, which are not specifically limited.

[0047] On the basis of the above embodiments, further, referring to Figure 5The crushing device includes a crushing bucket 7, a crusher 8 and a storage box 9. The crusher 8 is arranged inside the crushing bucket 7, and the storage box 9 is connected to the bottom of the crushing bucket 7. The top of the storage box 9 is provided with an inlet 10 and the side is provided with an outlet 11. The inlet 10 is connected to the crushing bucket 7, and the outlet 11 is connected to the pretreatment device through a conveying device 12.

[0048] The crushing bucket 7 is connected to the feed port 3 and can be connected to the drop hopper. The drop hopper is connected to the feed port 3, so that the material can be poured into the crushing bucket 7 through the drop hopper. The food waste to be processed enters the crushing bucket 7 through the feed port 3 and is crushed by the crusher 8. The waste after crushing by the crusher 8 enters the storage box 9 through the feed port 10. When the crushed food waste in the storage box 9 reaches the discharge port 11, the crushed food waste is sent to the pretreatment device under the drive of the conveying device 12. Furthermore, the conveying device 12 can be a vertical impurity pump, which is not specifically limited, with the purpose of being able to transport the crushed food waste.

[0049] On the basis of the above embodiments, further, referring to Figure 5 The pretreatment device includes a pretreatment barrel 13 and a heating sleeve 17 disposed outside the pretreatment barrel 13. A first stirring shaft 14 is disposed inside the pretreatment barrel 13, and a first blade 16 is disposed on the first stirring shaft 14. The heating sleeve 17 is used to heat the pretreatment barrel 13 so that the food waste in the barrel is steamed in a medium-high temperature environment to achieve wet heat pretreatment of the food waste. The first stirring shaft 14 and the first blade 16 can be provided to stir the food waste during the pretreatment process to achieve uniform pretreatment of the food waste.

[0050] Furthermore, the temperature at which the pretreatment device performs wet heat pretreatment on the kitchen waste can be 60°.

[0051] Further, refer to Figure 1 The pretreatment device is also connected to a water tank 47, and a water pump 48 is provided between the water tank 47 and the pretreatment device. The water pump 48 is used to drive the water in the water tank 47 to be added to the pretreatment device. Water can be added to the pretreatment device as needed to reduce the concentration of grease and salt in the kitchen waste, achieve uniform physical and chemical shapes, and thus improve the efficiency of subsequent composting.

[0052] On the basis of the above embodiments, further, referring to Figure 5 A spiral blade 20 is provided inside the solid-liquid separation device, the pretreatment device is connected to the solid-liquid separation device at a corresponding position at one end of the spiral blade 20, the solid outlet 18 of the solid-liquid separation device is provided at a corresponding position at the other end of the spiral blade 20, and the liquid outlet 19 of the solid-liquid separation device is provided at the bottom.

[0053] The food waste treated by the pretreatment device is transported from one end of the spiral blade 20 to the solid outlet 18 at the other end, which is conducive to increasing the moving distance of the material in the solid-liquid separation device, thereby ensuring the solid-liquid separation effect. The solid-liquid separation device includes a spiral blade 20, which is connected to a spiral blade motor 21; the spiral blade motor 21 drives the spiral blade motor 21 to rotate to realize the transportation of materials and solid-liquid separation. The food waste entering the solid-liquid separation device is squeezed out of the liquid through the spiral blade 20, and the extruded liquid is discharged through the liquid outlet 19, and the residual solid is discharged through the solid outlet 18.

[0054] Furthermore, a filter is provided at the liquid outlet 19 of the solid-liquid separation device. The filter may be a filter screen, which is used to prevent solid materials from entering the liquid outlet 19.

[0055] On the basis of the above embodiment, further, a second stirring shaft 23 is provided inside the compost bin 22. A large second stirring shaft 23 is provided inside the compost bin 22, and the second stirring shaft 23 is connected to a second stirring shaft motor 24, and rotates under the drive of the second stirring shaft motor 24 to stir the materials inside the compost bin 22. The second stirring shaft 23 is provided with second blades, and the second blades include at least two blades of different lengths, and the at least two blades of different lengths are cross-arranged on the second stirring shaft 23. Figure 5 For example, the second stirring shaft 23 may be provided with a T-shaped long blade 25 and a T-shaped short blade 26 , and the two blades are intersected on the second stirring shaft 23 .

[0056] On the basis of the above embodiments, further, referring to Figure 1 The compost box 22 is provided with a solid fertilizer outlet 27, and there is an operating space 29 between the compost box 22 and the inner wall of the box body, and a second door body 28 is installed at the solid fertilizer outlet 27 and on the box body. The side end of the compost box 22 is provided with a solid fertilizer outlet 27, and the solid fertilizer outlet 27 is installed with a second door body 28, which can be a single-leaf single-opening door. An operating space 29 is formed between the solid fertilizer outlet 27 and the box body 6. After the composting is completed, the staff opens the second door body 28, enters the solid fertilizer outlet 27 at the operating space 29, and takes the fertilizer. The staff can also enter the operating space 29 through the second door body 28 on the box body to perform operations such as maintenance on other components.

[0057] The side of the liquid fertilizer tank 31 is connected to a liquid fertilizer discharge pipe 41, and a discharge valve is provided on the liquid fertilizer discharge pipe 41. The user manually opens the discharge valve to take the liquid fertilizer. Figure 2 The liquid inlet 30 on the liquid fertilizer tank 31 is arranged on the side wall of the liquid fertilizer tank 31 and is located below the liquid surface to avoid excessive disturbance of the oil stratification on the liquid surface by the inlet liquid. A slag discharge valve is arranged at the bottom of the liquid fertilizer tank.

[0058] On the basis of the above embodiments, further, this embodiment provides a large-scale integrated kitchen waste treatment system with high integration, capable of continuous operation, large-scale treatment of high-oil and high-salt kitchen waste, and obtaining solid fertilizer and liquid fertilizer, including a box body 6, and two front and rear units are arranged inside the box body 6; the front unit, i.e., the first treatment unit, is provided with a crushing device, a pretreatment barrel 13, a solid-liquid separation device, and a composting box 22; the rear unit, i.e., the second treatment unit, includes an odor treatment device 46 and a liquid fertilizer tank 31; a feed port 3 is arranged on the side of the box body 6; and the feed port 3 is connected to the crushing device. The crushing device includes a crushing bucket 7, a double-shaft metal crusher 8, and a storage box 9. The storage box 9 is provided with an upper feeding port 10 and a side discharge port 11; the side discharge port 11 is connected to the pretreatment barrel 13 through a vertical impurity pump; a first stirring shaft 14 and a first blade 16 on the first stirring shaft 14 are arranged inside the pretreatment barrel 13, and a first stirring shaft motor 15 and a heating sleeve 17 are arranged outside; the lower end of the pretreatment barrel 13 is connected to a solid-liquid separation device; the solid-liquid separation device is provided with a solid outlet 18 and a liquid outlet 19; the solid outlet 18 is connected to the compost box 22; the liquid outlet 19 is connected to the upper liquid inlet 30 of the liquid fertilizer tank 31; the exhaust port 45 at the top of the compost box 22 is connected to the odor treatment device 46.

[0059] Furthermore, a driving pump may be provided on the liquid pipeline in the processing system in the above-mentioned embodiments.

[0060] The all-in-one machine has a high degree of integration and does not require separate dehydration and crushing operations outside the facility. On the one hand, it is convenient to operate, and on the other hand, it effectively improves the treatment efficiency of food waste and the effectiveness of the products. A pretreatment tank is set up to perform wet heat pretreatment on the garbage. On the one hand, it reduces the concentration of oil and salt in the food waste and achieves uniformity of physical and chemical shape, thereby improving the efficiency of subsequent composting; on the other hand, it reduces pathogens in food waste through medium and high temperature steaming, and appropriately increases the temperature to provide a suitable temperature for the composting flora.

[0061] The processing system has a compact structure and adopts a bracket 1 to transport and dump the food waste. It does not require manual operation and the position of the discharge port 11 can be set according to demand. One person can easily complete the material collection operation. It adopts graded and phased fermentation to maximize the processing of food waste and obtain three products: waste oil, liquid fertilizer, and solid fertilizer. It can also operate continuously to realize the immediate production and removal of food waste. It is suitable for separate food waste processing in schools, restaurants, construction sites, etc.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An integrated kitchen waste recycling and treatment system, suitable for schools, restaurants and construction sites to carry out separate kitchen waste treatment, characterized in that: It comprises a box body and two front and rear units arranged inside the box body; the front unit is a first processing unit, the rear unit is a second processing unit, the first processing unit comprises a crushing device, a pre-processing device, a solid-liquid separation device and a composting box connected in sequence, wherein the pre-processing device is used to perform wet heat pre-processing on kitchen waste, the composting box is connected to the solid outlet of the solid-liquid separation device, the second processing unit comprises a liquid fertilizer tank, the liquid outlet of the solid-liquid separation device is connected to the liquid inlet of the liquid fertilizer tank, and an oil-water separation component is arranged inside the liquid fertilizer tank; The liquid fertilizer tank is also provided with a strain introduction port, which is connected to the strain tank; the liquid fertilizer tank is provided with the strain introduction port for adding strains during the liquid fertilizer fermentation process; The first processing unit is used to sequentially crush, pre-treat, separate solid and liquid from the kitchen waste, and compost the separated solid materials to obtain solid fertilizer; the second processing unit is mainly used to separate oil and water from the liquid materials separated by the solid-liquid separation device, and ferment and condition the water materials after the oil-water separation to obtain liquid fertilizer; The oil-water separation assembly includes an aerator, an oil scraper plate arranged on the top, a collecting plate and a rotating shaft; the aerator is fixed to the lower part of the liquid fertilizer tank, the rotating shaft is fixed to the upper part of the liquid fertilizer tank and is connected to a rotating shaft motor, one side of the oil scraper plate is fixedly connected to the rotating shaft, and the other side is connected to the inner wall of the liquid fertilizer tank, and the edge of one side of the oil scraper plate connected to the inner wall of the liquid fertilizer tank is pointed, the collecting plate is fixedly arranged and arranged between the rotating shaft and the inner wall of the liquid fertilizer tank, the two sides of the collecting plate are correspondingly sealed and connected to the inner wall of the liquid fertilizer tank and the rotating shaft, the collecting plate is a hollow structure and oil inlet grooves are respectively provided on the two side surfaces of the collecting plate, and the oil inlet grooves are slots that penetrate the side of the collecting plate; An oil outlet connected to the outside is provided below the side where the collecting plate is connected to the inner wall of the liquid fertilizer tank; a wedge-shaped block is provided on the inner side of the bottom surface of the collecting plate, and the end of the wedge-shaped block with a smaller thickness is connected to the oil outlet; The pretreatment device is connected to a water tank, and a water pump is provided between the water tank and the pretreatment device. The pretreatment device comprises a pretreatment barrel and a heating jacket provided outside the pretreatment barrel. A first stirring shaft is provided inside the pretreatment barrel, and a first blade is provided on the first stirring shaft.

2. The integrated kitchen waste recycling and processing system according to claim 1 is characterized in that: The box body is provided with a feed port communicating with the pulverizing device and the outside, and a first door body is installed at the feed port.

3. The integrated kitchen waste recycling and processing system according to claim 2 is characterized in that: The feed port is rotatably connected to a bracket, which is used to support the trash can and rotate to dump the trash can; one end of the bracket connected to the feed port is also connected to a diversion nozzle, which is used to be clamped at the opening of the trash can.

4. The integrated kitchen waste recycling and processing system according to claim 1 is characterized in that: The crushing device includes a crushing bucket, a crusher and a storage box, the crusher is arranged inside the crushing bucket, the storage box is connected to the bottom of the crushing bucket, the top of the storage box is provided with an inlet, and the side is provided with an outlet, the inlet is connected to the crushing bucket, and the outlet is connected to the pretreatment device through a conveying device.

5. The integrated kitchen waste recycling and processing system according to claim 1 is characterized in that: A spiral blade is provided inside the solid-liquid separation device, the pretreatment device is connected to the solid-liquid separation device at a corresponding position at one end of the spiral blade, the solid outlet of the solid-liquid separation device is arranged at a corresponding position at the other end of the spiral blade, and the liquid outlet of the solid-liquid separation device is arranged at the bottom.

6. The integrated kitchen waste recycling and processing system according to claim 1 is characterized in that: An exhaust port is arranged on the top of the compost box, and the exhaust port is connected to an odor treatment device.

7. The integrated kitchen waste recycling and processing system according to claim 1 is characterized in that: The compost box is provided with a solid fertilizer outlet, an operating space is provided between the compost box and the inner wall of the box body, and a second door body is respectively installed at the solid fertilizer outlet and on the box body; a liquid fertilizer discharge pipe is connected to the side of the liquid fertilizer tank, and a discharge valve is provided on the liquid fertilizer discharge pipe.

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