Kitchen waste in-situ liquefaction treatment device

Abstract

According to the in-situ liquefaction treatment device for the kitchen waste, the spiral blades are driven to rotate by using the rotary driving mechanism, so that the kitchen waste can be effectively mixed with a liquefaction bacterium agent, the mixing uniformity is improved, and the liquefaction effect is improved. The design of the spiral blades in the liquefying tank is beneficial to uniform distribution of the materials in the liquefying process, the situation of insufficient local liquefying is avoided, and a more suitable breeding environment is provided for microorganisms. A filtrate hole is formed in the bottom of the liquefying tank and is matched with a filtrate collecting device, so that liquid generated in the liquefying process can be discharged in time, odor caused by anaerobic liquefaction due to accumulation of the liquid is avoided, and meanwhile, semi-liquefied materials which are not completely liquefied are liquefied repeatedly to reach the production standard. Through the inclined design of the liquefying tank on the rack, the flowing and discharging of liquid can be assisted by utilizing gravity, the energy consumption is reduced, and the treatment capacity of the liquefying tank is improved.

Description

Technical Field

[0001] The present application relates to the technical field of food waste liquefaction, and in particular to an on-site food waste liquefaction treatment device. Background Art

[0002] Compared with other garbage, restaurant garbage contains catering garbage with high organic matter content, so in order to achieve the purpose of maximum resource utilization. It is necessary to use a stirring device to mix the catering garbage separated from the restaurant garbage with the liquefaction bacterial agent to obtain a liquefied product. The liquefied product of the restaurant garbage can be used to make a carbon source. The catering garbage separated from the restaurant garbage generally has a high water content. The liquefaction effect after the uneven mixing of the catering garbage and the liquefaction bacterial agent is poor, and the liquid produced during the liquefaction process cannot be discharged, which affects the reproduction of microorganisms in the tank and reduces the liquefaction efficiency. Summary of the invention

[0003] The present application provides an on-site liquefaction treatment device for restaurant kitchen waste, which has a good stirring effect and can filter out liquid in the liquefaction process to improve the liquefaction effect.

[0004] The present application provides an on-site liquefaction treatment device for kitchen waste, which adopts the following technical solution:

[0005] A device for liquefying and treating kitchen waste on site, comprising a frame, a liquefaction tank and a rotary drive mechanism.

[0006] The liquefaction tank is installed on the frame, and the interior of the liquefaction tank has a liquefaction chamber for microbial liquefaction treatment of food waste;

[0007] The liquefaction tank is provided with a material inlet and outlet, which are connected to the liquefaction chamber, and are used for inputting food waste or discharging non-liquefiable food waste and excess food waste;

[0008] The interior of the liquefaction tank is provided with a rotatable spiral blade, and a rotary drive mechanism is arranged on the frame and is in transmission connection with the spiral blade, and is used to drive the spiral blade to rotate relative to the frame, so as to stir or convey the food waste, realize full contact between the waste and the filler with bacteria, realize aerobic reaction, and thus liquefy the food waste into liquid;

[0009] A plurality of filtrate holes are distributed circumferentially on the side wall of the liquefaction tank away from the material inlet and outlet, and are all connected to the liquefaction chamber. The filtrate holes are used to filter and discharge excess liquid in the liquefaction chamber. A filtrate collecting device is provided outside the filtrate holes to collect liquid liquefied from food waste.

[0010] For further improvement, the liquefaction tank is installed at an inclination, with its axis forming a predetermined inclination angle with the horizontal plane, the material inlet and outlet are located at the upper end of the liquefaction tank in the vertical direction, and the filtrate hole is located at the lower end of the liquefaction tank in the vertical direction.

[0011] For further improvement, the liquefaction tank and the frame are rotationally connected, the spiral blades are fixedly connected to the inner wall of the liquefaction chamber of the liquefaction tank, and the rotary drive mechanism is used to drive the liquefaction tank and the spiral blades to rotate along the axis of the liquefaction tank.

[0012] Further improvement, the filtrate collecting device includes an arc-shaped guide plate for preventing liquid from splashing and a filtrate collecting pool for collecting liquid after liquefaction of food waste, the arc-shaped guide plate is arranged correspondingly on the outside of the filtrate hole, and there is a gap between the liquefaction tank and the arc-shaped guide plate for liquid discharge, an opening is provided at the bottom of the arc-shaped guide plate, and the filtrate collecting pool is arranged directly below the opening of the arc-shaped guide plate.

[0013] For further improvement, a baffle groove is provided on the inner side of the arc guide plate to prevent the liquid from flowing horizontally, two baffle rings are fixedly installed on the outer wall of the liquefaction tank, the filtrate hole is located between the two baffle rings, and the two baffle rings are placed in the baffle groove.

[0014] Further improvement includes a feed hopper, a feed pipe is provided at the bottom of the feed hopper, a feed valve for controlling the amount of food waste entering the liquefaction tank is provided between the feed hopper and the feed pipe, the feed pipe extends into the material inlet and outlet, and the food waste is fed into the liquefaction tank from the feed pipe; a liquid collecting chamber for collecting liquid in the food waste is provided on the outside of the feed hopper, a filter plate for separating the food waste is provided between the liquid collecting chamber and the feed hopper, and a drain pipe is provided at the bottom of the liquid collecting chamber.

[0015] Further improvement, the bottom of the feed hopper is an arc-shaped bottom, and the filter plate includes a side filter plate and a bottom filter plate, the side filter plate constitutes a part of the side wall of the feed hopper, and the bottom filter plate constitutes a part of the arc-shaped bottom.

[0016] Further improvement also includes a deodorization system, which includes a deodorization water tank, a water pump and a water sprinkler. The filtrate collection tank is connected to the water pump, the water pump is connected to the input end of the deodorization water tank, and the output end of the deodorization water tank is connected to the water sprinkler. The water sprinkler is used to spray the catalytic liquid into the liquefaction tank to promote the liquefaction process.

[0017] Further improvement also includes an agitator to prevent kitchen waste from being blocked at the material inlet and outlet. The agitator includes a stirring motor and a stirring shaft. The stirring shaft is rotatably installed on the top of the feed hopper. One end of the stirring shaft is connected to the output end of the stirring motor, and the other end extends into the bottom of the feed hopper.

[0018] Further improvement also includes a discharge collection device for collecting food waste that cannot be liquefied and excess food waste, the discharge collection device includes a discharge hopper and multiple collection buckets, the discharge hopper is located below the material inlet and outlet and the feed hopper, the collection bucket is arranged below the discharge hopper, a movable base is arranged at the bottom of the collection bucket, and movable wheels are arranged at the bottom of the movable base, the movable wheels are connected to roller tracks, and the roller tracks are fixedly connected to the frame.

[0019] In summary, the present application includes at least one of the following beneficial technical effects:

[0020] 1. Improve mixing uniformity: By using a rotary drive mechanism to drive the spiral blade to rotate, the restaurant waste can be effectively mixed with the liquefied bacteria agent, improving the mixing uniformity and thus improving the liquefaction effect. The spiral blade design inside the liquefaction tank helps to evenly distribute the material during the liquefaction process, avoids the situation of insufficient local liquefaction, and provides a more suitable breeding environment for microorganisms.

[0021] 2. Improve drainage performance: There is a filtrate hole at the bottom of the liquefaction tank, which can be used with a filtrate collection device to timely discharge excess liquid generated during the liquefaction process to avoid liquid accumulation affecting liquefaction efficiency. Through the tilting design of the liquefaction tank on the rack, gravity can be used to assist the flow and discharge of the liquid, reduce energy consumption, and improve the processing capacity of the liquefaction tank.

[0022] 3. Improve resource utilization rate: The present invention uses such an external rotating mechanism to achieve full contact between garbage and fillers with bacteria, realize aerobic reaction, and liquefy the restaurant garbage into liquid, which leaks out from the mesh holes on the periphery. The liquefied liquid is then processed in the next step to become a zero-emission carbon source. The liquefaction of restaurant garbage into liquid can have more valuable utilization channels, realize the resource utilization of waste, reduce environmental pollution, and promote ecological balance. By improving the liquefaction efficiency and resource utilization rate, the system can reduce processing costs and improve economic benefits, and has a good market application prospect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional diagram of the internal structure of the device.

[0024] Figure 2 is a cross-sectional view of the device.

[0025] Figure 3 It is a structural schematic diagram of a discharge valve provided on a feed hopper.

[0026] Figure 4 It is an enlarged schematic diagram of the structure inside the feed hopper.

[0027] Figure 5 It is a schematic diagram of the rack frame shell structure.

[0028] Figure 6It is a functional block diagram of the device.

[0029] Explanation of the reference numerals: 1. Frame, 11. Left rotating support, 12. Right rotating support, 13. Rotating shaft, 14. Support wheel, 15. Air conditioner, 2. Liquefaction tank, 21. Material inlet and outlet, 22. Baffle ring, 23. Filtrate hole, 24. Arc guide plate, 25. Spiral blade, 3. Feed hopper, 31. Feed pipe, 32. Liquid collecting chamber, 34. Filter plate, 35. Drain pipe, 36. Feed valve, 37. Discharge valve, 38. Stirring shaft, 4. Discharge hopper, 41. Collecting barrel, 42. Movable base, 43. Moving wheel, 44. Roller track, 5. Filtrate collecting pool, 6. Deodorizing water tank. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-5 This application is described in further detail.

[0031] The embodiment of the present application discloses an on-site liquefaction treatment device for restaurant kitchen waste.

[0032] Reference Figure 1 A device for liquefying kitchen waste in situ comprises a frame 1, a liquefaction tank 2 and a rotary drive mechanism.

[0033] The liquefaction tank 2 is installed on the frame 1, and has a liquefaction chamber inside for microbial liquefaction treatment of food waste; the liquefaction medium (enzyme bacteria) can be pre-added inside the liquefaction tank 2 for cultivation, or it can be mixed with the material before feeding and then added to the tank.

[0034] The liquefaction tank 2 is provided with a material inlet and outlet 21, which is connected to the liquefaction chamber and is used for inputting or discharging food waste;

[0035] The interior of the liquefaction tank 2 is provided with a spiral blade 25, and a rotary drive mechanism is provided between the spiral blade and the frame 1, for driving the spiral blade to rotate relative to the frame 1, so as to stir or convey the food waste; the waste is fully contacted with the filler with bacteria, and an aerobic reaction is achieved, so as to liquefy the food waste;

[0036] A plurality of filtrate holes 23 are circumferentially distributed on the side wall of the liquefaction tank 2. The filtrate holes 23 are connected to the liquefaction chamber and are used to filter and discharge excess liquid in the liquefaction chamber. A filtrate collecting device for collecting liquid is provided outside the filtrate holes 23.

[0037] The stirring device for liquefying food waste is mainly composed of a frame 1, a liquefaction tank 2 and a rotary drive mechanism. The liquefaction tank 2 is installed on the frame 1, and the liquefaction chamber inside the liquefaction tank 2 is used to contain food waste and liquefy it. The material inlet and outlet 21 is used for the entry and exit of materials.

[0038] The liquefaction tank 2 is equipped with spiral blades inside, and these blades are driven by a rotary drive mechanism arranged between the frame 1 and the spiral blades. When the spiral blades rotate forward, they drive the material to be input and stirred, and when the spiral blades rotate reversely, they transport the material.

[0039] Whether it is anaerobic liquefaction or aerobic liquefaction, a certain amount of liquid will be produced during the liquefaction process of food waste. The filtrate hole 23 can filter and discharge the excess liquid in the liquefaction chamber to prevent excessive liquid from causing particle agglomeration, poor ventilation and bacterial contamination, which will affect the normal growth of microorganisms. Liquid control can optimize the metabolic activity of microorganisms, thereby improving liquefaction efficiency.

[0040] As attached Figure 2 As described above, the kitchen waste enters the system through the material inlet and outlet 21. A feed pipe 31 is connected to the bottom of the feed hopper 3, and the feed pipe 31 directly extends into the material inlet and outlet 21 to ensure that the material enters the liquefaction tank 2 smoothly.

[0041] In the liquefaction tank 2, the positive rotation of the spiral blades not only promotes the mixing of the material and the microorganisms, but also helps the material to be uniformly liquefied. The filtrate generated during the liquefaction process is discharged through the filtrate hole 23 at the bottom of the liquefaction tank 2, and the filtrate collection device collects and temporarily stores the filtrate for further processing or utilization.

[0042] The liquefied material is discharged from the liquefaction tank 2 by the reverse rotation of the spiral blades, and then discharged through the discharge hopper 4 located below the material inlet and outlet 21. The bottom of the discharge hopper 4 is provided with a discharge port, which is connected to a discharge collection device for collecting the liquefied material for subsequent processing or use as insect feed.

[0043] The entire system is designed to achieve efficient liquefaction of food waste. Through automated feeding, mixing, liquefaction and discharging processes, the liquefaction efficiency is improved, manual intervention is reduced, and the stability and controllability of the liquefaction process are ensured.

[0044] The liquefaction tank 2 is installed at an angle, with its axis forming a predetermined inclination angle with the horizontal plane. The material inlet and outlet 21 is located at the upper end of the liquefaction tank 2, and the filtrate hole 23 is located at the lower end of the liquefaction tank 2, so that the liquefaction tank can discharge the internal liquid faster by gravity when rotating or standing still.

[0045] The liquefied tank 2 is rotatably connected to the frame 1, and the liquefied tank 2 is connected to a rotating drive mechanism. A left rotating support 11 and a right rotating support 12 are provided at the bottom of the frame 1. A rotating shaft 13 is rotatably mounted on the left rotating support 11. One end of the rotating shaft 13 is fixedly connected to the liquefied tank 2, and the other end of the rotating shaft 13 is connected to the rotating drive mechanism to ensure that the liquefied tank 2 can rotate stably; the other end of the rotating shaft 13 is connected to the rotating drive mechanism, which provides power to drive the liquefied tank 2 to rotate. A pair of spaced support wheels 14 are rotatably mounted on the right rotating support 12, and the liquefied tank 2 is placed on the pair of support wheels 14. The support wheels 14 play a role in supporting and positioning the liquefied tank 2, and ensure the stability of the liquefied tank 2 during rotation.

[0046] The spiral blades are divided into two types: shaftless and shafted. Here, shaftless spiral blades are preferably used, and the spiral blades are fixedly connected to the inner wall of the liquefaction chamber of the liquefaction tank 2 (the spiral blade structure is the same as the blade structure principle inside the concrete mixer tank).

[0047] This design avoids the wear and damage to the equipment caused by the axial force that may occur in the traditional shafted screw conveyor, and also reduces the maintenance cost. The rotary drive mechanism drives the liquefied tank 2 to rotate through the rotating shaft 13, thereby driving the internal shaftless spiral blades to rotate.

[0048] This rotational action allows the food waste to be fully stirred and mixed in the liquefaction tank 2, promoting the contact between the material and the microorganisms and accelerating the liquefaction process. As the shaftless spiral blades rotate, the material is continuously lifted and mixed in the liquefaction tank 2, achieving uniform distribution and effective liquefaction of the material. At the same time, the design of the spiral blades also facilitates the transportation and movement of the material during the liquefaction process.

[0049] The filtrate collecting device includes an arc-shaped guide plate 24 and a filtrate collecting pool 5. The arc-shaped guide plate 24 is correspondingly arranged on the outside of the filtrate hole 23, and there is a gap between the liquefaction tank 2 and the arc-shaped guide plate 24. The arc-shaped guide plate 24 is relatively fixedly connected to the frame, and the liquefaction tank 2 can rotate relative to the arc-shaped guide plate 24. An opening is provided at the bottom of the arc-shaped guide plate 24, and the filtrate collecting pool 5 is arranged directly below the opening.

[0050] The arc-shaped guide plate 24 can prevent the filtrate from splashing during the rotation of the liquefaction tank. The opening of the arc-shaped guide plate 24 faces downward to form a semi-closed guide body, ensuring that the filtrate discharged from the filtrate hole 23 can flow into the filtrate collection tank 5.

[0051] The opening width of the arc guide plate 24 is smaller than the pool opening width of the filtrate collection pool 5, which can ensure that the filtrate will not splash due to the excessive opening when flowing into the collection pool. The filtrate holes 23 are circumferentially distributed around the axis on the side of the liquefaction tank 2 and are located in the arc guide plate 24. Such a layout helps to evenly collect the filtrate discharged from the filtrate holes 23 and reduce uneven distribution and splashing of the filtrate during the collection process.

[0052] Due to the presence of the arc guide plate 24, the filtrate will be guided by the arc guide plate when discharged and flow along the inner surface of the arc guide plate to the filtrate collection tank 5, effectively preventing the filtrate from directly splashing to the outside of the liquefaction tank 2 during the discharge process.

[0053] This design also helps to improve the collection efficiency of the filtrate, because the filtrate is guided by the arc guide plate during the discharge process, which reduces the loss of the filtrate and ensures that the filtrate can be effectively collected. By reducing the splashing of the filtrate, the arc guide plate 24 helps to keep the operating environment clean and tidy, reduces pollution to the surrounding environment, and also reduces the workload of later cleaning and maintenance.

[0054] The inner side of the arc-shaped guide plate 24 is provided with a baffle groove, which can guide the filtrate to flow along the inner side of the arc-shaped guide plate, thereby reducing the possibility of splashing. Two baffle rings 22 are fixedly installed on the outer wall of the liquefied tank 2, and the filtrate hole 23 is located between the two baffle rings 22, and the two baffle rings 22 are placed in the baffle groove. A restricted area is formed between the two baffle rings 22, and the filtrate hole 23 is located in this annular groove, further preventing the filtrate from flowing to other positions on the surface of the liquefied tank 2 when discharged.

[0055] Such a layout ensures that the filtrate first enters the baffle groove of the arc-shaped guide plate 24 when being discharged, and the filtrate can flow to the filtrate collection tank 5 below in an orderly manner.

[0056] It also includes a feed hopper 3. A loading mechanism for a trash can is also provided on the outside of the frame box, so that the garbage in the trash can can be poured into the feed hopper 3. A feed pipe 31 is provided at the bottom of the feed hopper 3. The feed pipe 31 extends into the material inlet and outlet 21. The kitchen waste is fed into the liquefaction tank 2 from the feed pipe 31. A liquid collecting chamber 32 is provided on the outside of the feed hopper 3. The liquid collecting chamber 32 is used to collect liquid overflowing or dripping from the feed hopper 3.

[0057] A filter plate 34 is provided between the liquid collecting chamber 32 and the feed hopper 3. The filter plate 34 separates the liquid collecting chamber 32 from the feed hopper 3. The function of the filter plate 34 is to prevent solid materials from directly entering the liquid collecting chamber 32 while allowing liquid to pass through. In this way, the solid materials and liquid can be separated for separate treatment or recycling.

[0058] A drain pipe 35 is provided at the bottom of the liquid collecting chamber 32, and the drain pipe 35 is used to discharge the collected liquid from the liquid collecting chamber 32. The drain pipe 35 can be connected to other processing systems or storage containers to further process or recycle the collected liquid. A feed valve 36 is provided between the feed hopper 3 and the feed pipe 31. The function of the feed valve 36 is to control the flow rate and speed of the material in the feed hopper 3 entering the feed pipe 31. By adjusting the opening of the feed valve 36, the feeding process can be accurately controlled to prevent excessive or insufficient material, thereby ensuring the stability and efficiency of the liquefaction process.

[0059] As attached Figure 4 As shown, the bottom of the feed hopper 3 is an arc-shaped bottom, which helps to reduce the accumulation of materials at the bottom of the hopper, promotes the flow of materials, avoids dead corners, and ensures that the materials smoothly enter the feed pipe 31. A discharge valve 37 is provided on the arc-shaped bottom of the hopper, and the discharge valve is used to control the flow rate of the material directly discharged downward from the feed hopper 3. By adjusting the opening of the discharge valve 37, material blockage can be avoided and cleaning can be facilitated.

[0060] The filter plate 34 includes a side filter plate and a bottom filter plate. This design improves the filtering efficiency and ensures that only liquid can enter the liquid collecting chamber 32 through the filter plate 34, while the solid materials are retained in the feed hopper 3. The side filter plate constitutes a part of the side wall of the feed hopper 3, so that the liquid can penetrate from the side of the feed hopper 3 to the liquid collecting chamber 32 at this position, while keeping the solid materials in the hopper. The bottom filter plate constitutes a part of the arc-shaped hopper bottom. The bottom filter plate allows the liquid at the bottom of the hopper to pass through, further preventing the solid materials from entering the liquid collecting chamber 32.

[0061] The above-mentioned design of setting a filtering structure at the feed hopper position not only improves the efficiency of material drying and liquefaction processing, but also helps to maintain the uniformity and stability of the liquefaction environment in the liquefaction tank 2. At the same time, by effectively separating solid materials and liquids, it is convenient to separately process and recycle the liquid, thereby improving the functionality and environmental protection performance of the entire stirring device for liquefying food waste.

[0062] The side filter plate is composed of two inclined triangular filter plates, each of which has a certain inclination angle. This double-bevel design can increase the filtration area and improve the filtration efficiency. The upper triangular filter plate has a smaller inclination angle, which helps to control the flow direction of the material.

[0063] The design of the triangular filter plate helps to reduce the accumulation and blockage of materials on the filter plate surface and keep the filter channel unobstructed. In addition, the lower triangular filter plate is tilted toward the feed pipe, which helps to guide the liquid from the filter plate surface to the feed pipe 31.

[0064] The above-mentioned specific tilting design can effectively separate the liquid and solid materials. The liquid can more easily pass through the filter plate into the liquid collecting chamber 32 under the action of gravity, while the solid materials are retained in the feed hopper 3 or flow out from the feed pipe 31.

[0065] As attached Figure 3 and Figure 6 As shown, the deodorization system also includes a deodorization water tank 6, a water pump and a water sprayer. The filtrate collection tank 5 is connected to the water pump, the water pump is connected to the input end of the deodorization water tank 6, and the output end of the deodorization water tank 6 is connected to the water sprayer. The water sprayer is used to spray liquid into the liquefaction tank 2 to promote the liquefaction process. The deodorization water tank 6 is located above the liquefaction tank 2. The water drained when the catering waste is poured in is now pumped to the upper deodorization water tank 6 through the water pump, and then this part of the water is sprayed into the tank once every 30 minutes through the water sprayer, and so on, so as to ensure the enzymatic hydrolysis effect of the catering waste.

[0066] The upper deodorizing water tank 6 can be equipped with a weighing system to accurately measure the amount of water to be sprayed into the tank. The water sprayer can be set at the material inlet and outlet, or above the feed hopper 3. The deodorizing water tank also has an oil separation function. By separating the pages in the deodorizing water tank, the grease in the catering waste can be separated (refer to the prior art such as CN202310082960.6 A system and method for treating catering waste).

[0067] The stirrer also includes a stirring motor, a stirring shaft 38 and a stirring paddle. The stirring shaft 38 is rotatably mounted on the top of the feed hopper 3. One end of the stirring shaft 38 is connected to the output end of the stirring motor. The stirring motor is the power source of the stirrer and is responsible for providing the necessary torque and speed to drive the stirring shaft 38 to rotate. The other end extends into the bottom of the feed hopper 3, and the stirring shaft can transmit power to the inside of the feed hopper.

[0068] The stirring paddles are provided in three groups, which are upper stirring paddles, middle stirring paddles and lower stirring paddles respectively. The design of the three groups of stirring paddles helps to improve the stirring efficiency and ensure that the material is fully stirred in the feed hopper 3, thereby improving the uniformity and efficiency of the liquefaction process.

[0069] The upper stirring paddle is located at the upper part of the stirring shaft 38, and is responsible for stirring and mixing the materials at the upper part of the feed hopper. The middle stirring paddle is located at the middle part of the stirring shaft 38, and further mixes the materials to ensure that the materials are in full contact with the liquefied medium. The lower stirring paddle approaches or reaches the bottom of the feed hopper 3 to ensure that the materials at the bottom can also be effectively stirred to prevent sedimentation. The upper stirring paddle, the middle stirring paddle and the lower stirring paddle are sequentially installed and fixed on the stirring shaft 38 from top to bottom, which helps to achieve uniform mixing and stirring of the materials at the entire height of the feed hopper 3.

[0070] The discharge collection device includes a discharge hopper 4 and a plurality of collection barrels 41. The discharge hopper 4 is located below the material inlet and outlet 21 and the feed hopper 3. The collection barrels 41 are arranged below the discharge hopper 4. The collection barrels 41 are used to receive the liquefied material discharged from the discharge hopper 4. Its design capacity and size should meet the discharge requirements of the liquefaction tank 2.

[0071] A movable base 42 is provided at the bottom of the collection barrel 41, and the movable base 42 allows the collection barrel to be moved or adjusted when necessary, and a new barrel can be replaced to adapt to different discharging operations. A movable wheel 43 is provided at the bottom of the movable base 42, and these wheels allow the collection barrel to be easily moved, so that the operator can adjust the position of the collection barrel as needed. The movable wheel 43 is connected to a roller track 44, and the roller track 44 is fixedly connected to the frame 1.

[0072] The roller track 44 provides guidance for the moving wheel 43, ensuring that the collection bucket 41 moves smoothly along the predetermined path. The design of the movable base 42 and the moving wheel 43 facilitates the replacement, cleaning and maintenance of the collection bucket 41, which helps to keep the equipment in good operating condition. The design of the moving wheel and the track reduces the physical labor of the operator during the discharge process, reduces the work intensity, and improves the safety of the operation.

[0073] As attached Figure 1 , Figure 3 and Figure 5 As shown, the device is a box structure, and the frame is equipped with cabinet doors, side panels and other accessories to form a certain isolation from the external environment. An air conditioner 15 is installed inside the box to adjust the liquefaction temperature. For example, the liquefaction temperature is maintained at 25°C-30°C. The rotation speed of the liquefaction tank during stirring is 5-6 rpm, and then it is left to stand for liquefaction.

Claims

1. A device for in-situ liquefaction treatment of kitchen waste, comprising a frame (1), a liquefaction tank (2) and a rotary drive mechanism, characterized in that: The liquefaction tank (2) is installed on the frame (1), and the interior of the liquefaction tank (2) is provided with a liquefaction chamber for performing microbial liquefaction treatment on the kitchen waste; The liquefaction tank (2) is provided with a material inlet and outlet (21), the material inlet and outlet (21) is connected to the liquefaction chamber, and the material inlet and outlet (21) is used for inputting food waste or discharging food waste that cannot be liquefied and excess food waste; The liquefaction tank (2) is provided with a rotatable spiral blade inside, and a rotary drive mechanism is arranged on the frame (1) and is transmission-connected to the spiral blade, and is used to drive the spiral blade to rotate relative to the frame (1), so as to stir or convey the food waste, achieve full contact between the waste and the filler with bacteria, and realize aerobic reaction, thereby liquefying the food waste into liquid; A plurality of filtrate holes (23) are distributed along the circumferential direction on the side wall of the liquefaction tank (2) at one end away from the material inlet and outlet (21), each of which is connected to the liquefaction chamber. The filtrate holes (23) are used to filter and discharge excess liquid in the liquefaction chamber. A filtrate collection device for collecting liquid liquefied from food waste is provided outside the filtrate holes (23).

2. The on-site liquefaction treatment device for food waste according to claim 1 is characterized in that: The liquefaction tank (2) is installed in an inclined manner, with its axis forming a predetermined inclination angle with the horizontal plane, the material inlet and outlet (21) being located at the upper end of the liquefaction tank (2) in the vertical direction, and the filtrate hole (23) being located at the lower end of the liquefaction tank (2) in the vertical direction.

3. The on-site liquefaction treatment device for food waste according to claim 2 is characterized in that: The liquefaction tank (2) and the frame (1) are rotatably connected, the spiral blades are fixedly connected to the inner wall of the liquefaction chamber of the liquefaction tank (2), and the rotary drive mechanism is used to drive the liquefaction tank (2) and the spiral blades to rotate along the axis of the liquefaction tank (2).

4. The on-site liquefaction treatment device for food waste according to claim 1 is characterized in that: The filtrate collecting device comprises an arc-shaped guide plate (24) for preventing liquid from splashing and a filtrate collecting pool (5) for collecting liquid after liquefaction of food waste, the arc-shaped guide plate (24) being arranged correspondingly on the outside of the filtrate hole (23), and a gap for liquid discharge is provided between the liquefaction tank (2) and the arc-shaped guide plate (24), an opening is provided at the bottom of the arc-shaped guide plate (24), and the filtrate collecting pool (5) is arranged directly below the opening of the arc-shaped guide plate (24).

5. The on-site liquefaction treatment device for food waste according to claim 4 is characterized in that: A baffle groove for preventing lateral flow of liquid is provided on the inner side of the arc-shaped guide plate (24); two baffle rings (22) are fixedly mounted on the outer wall of the liquefaction tank (2); the filtrate hole (23) is located between the two baffle rings (22); and the two baffle rings (22) are placed in the baffle groove.

6. The on-site liquefaction treatment device for food waste according to claim 1, characterized in that: The invention also comprises a feed hopper (3), a feed pipe (31) is provided at the bottom of the feed hopper (3), a feed valve (36) for controlling the amount of food waste entering the liquefaction tank (2) is provided between the feed hopper (3) and the feed pipe (31), the feed pipe (31) extends into the material inlet and outlet (21), and the food waste is fed into the liquefaction tank (2) through the feed pipe (31); a liquid collecting chamber (32) for collecting liquid in the food waste is provided outside the feed hopper (3), a filter plate (34) for separating the food waste is provided between the liquid collecting chamber (32) and the feed hopper (3), and a liquid drain pipe (35) is provided at the bottom of the liquid collecting chamber (32).

7. The on-site liquefaction treatment device for food waste according to claim 6 is characterized by: The bottom of the feed hopper (3) is an arc-shaped bottom, and the filter plate (34) comprises a side filter plate and a bottom filter plate, the side filter plate constitutes a part of the side wall of the feed hopper (3), and the bottom filter plate constitutes a part of the arc-shaped bottom.

8. The on-site liquefaction treatment device for food waste according to claim 4 is characterized by: The deodorization system also includes a deodorization water tank (6), a water pump and a water sprayer. The filtrate collection tank (5) is connected to the water pump, the water pump is connected to the input end of the deodorization water tank (6), and the output end of the deodorization water tank (6) is connected to the water sprayer. The water sprayer is used to spray the catalytic liquid into the liquefaction tank (2) to promote the liquefaction process.

9. The on-site liquefaction treatment device for food waste according to claim 6, characterized in that: It also includes a stirrer for preventing kitchen waste from being blocked at the material inlet and outlet (21), the stirrer including a stirring motor and a stirring shaft (38), the stirring shaft (38) being rotatably mounted on the top of the feed hopper (3), one end of the stirring shaft (38) being connected to the output end of the stirring motor, and the other end extending into the bottom of the feed hopper (3).

10. The on-site liquefaction treatment device for food waste according to claim 6, characterized in that: The invention also comprises a discharge collection device for collecting food waste that cannot be liquefied and excess food waste, the discharge collection device comprising a discharge hopper (4) and a plurality of collection buckets (41), the discharge hopper (4) being located below the material inlet and outlet (21) and the feed hopper (3), the collection buckets (41) being arranged below the discharge hopper (4), a movable base (42) being arranged at the bottom of the collection bucket (41), a movable wheel (43) being arranged at the bottom of the movable base (42), the movable wheel (43) being connected to a roller track (44), and the roller track (44) being fixedly connected to the frame (1).

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