Kitchen residue solid-liquid separation environment-friendly treatment equipment

Abstract

The application discloses a kind of kitchen residue solid-liquid separation environmental protection treatment equipment, including support frame, processing assembly, feeding assembly and discharge assembly;Processing assembly includes shell and processing spindle, the processing spindle is rotatably installed in shell, the outer surface of the processing spindle is fixedly installed with spiral extrusion piece, and spiral extrusion piece is variable-diameter variable-pitch spiral piece, the processing spindle and shell middle are equipped with filter assembly, and the filter assembly is fixedly installed in shell interior.The application has the advantages that: by the feeding assembly and processing assembly, the crushing knife of spiral arrangement on the crushing shaft can cut kitchen residue in advance before the material enters the extrusion cavity, reduce the problem that large block material directly extrusion causes equipment blockage, machine jamming;Subsequently rely on the variable-diameter variable-pitch spiral extrusion piece outside processing spindle, material is gradually gradient compression, cavity volume gradually reduces, can according to the material conveying state steady lifting extrusion force.

Description

Technical Field

[0001] This invention relates to the treatment of kitchen waste, and particularly to an environmentally friendly solid-liquid separation treatment device for kitchen waste. Background Technology

[0002] Food waste generated daily by canteens and restaurants constitutes a large volume of urban organic waste. This type of material generally has a high moisture content and complex impurities. It not only includes soft residues such as leftover food and food scraps, but also bone fragments, plant fibers, plastic debris, and a large amount of waste cooking oil. The overall material is complex in nature and highly polluting. Currently, the industry commonly uses screw extrusion solid-liquid separation equipment as the core front-end equipment for food waste pretreatment. It mainly relies on physical extrusion and screening to separate solid residues from oil-water mixtures, without involving biochemical degradation treatment. It is an indispensable basic unit in the food waste pretreatment process.

[0003] Existing traditional solid-liquid separation equipment has many shortcomings in actual working conditions and is poorly adapted to complex kitchen waste materials. First, plant fibers and fine debris in kitchen waste easily entangle and adhere to the screen surface. In addition, high-viscosity kitchen grease cools and hardens easily, which will block the screen holes for a long time, causing the equipment's filtration efficiency to drop rapidly. This requires frequent shutdowns for disassembly, cleaning, and manual unblocking, which not only increases the workload of maintenance but also directly delays continuous operation, resulting in very low production efficiency. The inner wall of the screen cylinder of the equipment is prone to the accumulation of thick oil stains and residual fine residues. During solid-liquid separation, the screen will deform under stress. Long-term accumulation of oil residues is not only difficult to clean but also generates odors, making it difficult to guarantee the stability and environmental treatment effect of the entire kitchen waste pretreatment system. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an environmentally friendly solid-liquid separation and treatment device for kitchen waste, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is an environmentally friendly treatment device for solid-liquid separation of kitchen waste, comprising: Support frame; The processing assembly includes a housing and a processing spindle. The processing spindle is rotatably mounted inside the housing. A spiral extrusion plate is fixedly mounted on the outer surface of the processing spindle. The spiral extrusion plate is a variable diameter and variable pitch spiral plate. A filter assembly is provided between the processing spindle and the housing. The filter assembly is fixedly mounted inside the housing. The feeding assembly includes a crushing box and a crushing shaft. The crushing box is fixedly installed at one end of the housing and communicates with the inside of the housing. One end of the crushing shaft is fixedly installed at one end of the processing main shaft, and the other end of the crushing shaft is rotatably installed inside the crushing box. A crushing blade is fixedly installed on the outside of the crushing shaft. The discharge assembly includes a sealing structure, a discharge box, a rotating seat, and a discharge hole. The discharge hole is located at one end of the housing. The discharge box is fixedly installed on one side of the housing and covers the outside of the discharge hole. The sealing structure is installed inside the discharge box and corresponds to the position of the discharge hole. The rotating seat is rotatably installed on one side of the housing and is fixedly connected to the end of the processing main shaft away from the crushing shaft. The rotating seat rotates synchronously with the processing main shaft. An inclined surface is provided on the outer side of the rotating seat, which slides with a connecting plate. A connecting seat is rotatably installed on the periphery of the connecting plate, and one end of the connecting seat is connected to the sealing structure.

[0006] Preferably, the sealing structure includes a fixed column and a sliding column. The fixed column is fixedly installed on the inner wall of the discharge box, and the sliding column is slidably installed on the fixed column. A spring is installed on the inner side of the fixed column. One end of the spring is fixedly connected to the sliding column, and the other end of the spring is abutted and fixed to the inner end face of the fixed column. One end of the connecting seat is fixedly connected to the sliding column.

[0007] Preferably, the connecting plate is circular in shape, and the connecting seat is rotatably mounted on the outer circumferential surface of the connecting plate.

[0008] Preferably, the crushing blades are arranged in a spiral shape and installed on the crushing shaft, and the upper side of the crushing box is provided with a feeding port.

[0009] Preferably, the housing includes an outer shell and an inner shell, the inner shell being installed inside the outer shell, and an inner guide vane being fixedly installed on the inner wall of the inner shell.

[0010] Preferably, a heating assembly is installed on the outer side of the housing. The heating assembly includes an inlet pipe, an outlet pipe, and a guide plate. The guide plates are staggered and installed between the outer shell and the inner shell, forming a meandering flow channel. The inlet pipe and the outlet pipe are respectively installed at both ends of the outer shell, and the inlet pipe and the outlet pipe are respectively connected to both ends of the flow channel.

[0011] Preferably, a drive assembly is installed at one end of the support frame. The drive assembly is connected to one end of the crushing shaft. The drive assembly includes a motor and two pulleys. The motor is fixedly installed at one end of the support frame, and the two pulleys are respectively fixedly installed at the output end of the motor and one end of the crushing shaft.

[0012] Preferably, the filter assembly includes a filter cylinder, with multiple reinforcing ribs fixedly installed on the outer side of the filter cylinder and multiple reinforcing rings fixedly installed on the inner wall of the filter cylinder. The reinforcing ribs are arranged along the axial direction of the filter cylinder, and the reinforcing rings are arranged circumferentially along the inner wall of the filter cylinder. The reinforcing ribs and reinforcing rings are spatially perpendicular to each other.

[0013] Preferably, a plurality of cleaning scrapers are fixedly installed on the outer side of the spiral extrusion plate, the cleaning scrapers are slidably installed on the inner wall of the filter cylinder, and the cleaning scrapers are located between adjacent reinforcing rings.

[0014] Preferably, a liquid collection assembly is installed on the inner side of the support frame. The liquid collection assembly includes a collection box, which is fixedly installed on the inner side of the support frame. The upper end of the collection box is connected to the interior of the shell, and a drain port is provided on one side of the collection box.

[0015] By adopting the above technical solution, the present invention has the following beneficial effects: 1. Through the feeding and processing components, the spirally arranged crushing blades on the crushing shaft can pre-crush the fibers and lumpy debris entangled in the kitchen waste before the material enters the extrusion chamber, reducing the problem of equipment blockage and jamming caused by direct extrusion of large pieces of material; subsequently, relying on the variable diameter and variable pitch spiral extrusion blades on the outside of the processing main shaft, the material is compressed in a step-by-step gradient, and the chamber volume gradually decreases, which can steadily increase the extrusion pressure according to the material conveying state; it can adapt to kitchen materials with different dryness and wetness and different impurity contents, improve the solid-liquid separation effect, reduce the moisture content of the output residue, and enhance the overall operational stability and material adaptability of the equipment.

[0016] 2. Through the designed discharge assembly, relying on the cooperation of fixed columns, sliding columns, and springs, combined with the inclined push transmission structure of the rotating seat, fully automatic periodic opening and closing of the discharge is achieved. Under normal conditions, the springs tightly seal the discharge holes, maintaining a stable working back pressure inside the extrusion chamber, structurally ensuring the quality of material extrusion and dewatering. At the same time, the cleaning scrapers mounted on the edge of the spiral extrusion plates can rotate synchronously with the main shaft, continuously wiping the inner wall of the filter screen cylinder, promptly removing attached grease, fine residue, and fibrous debris. Combined with the reinforcement structure of the outer reinforcing ribs and inner reinforcing rings of the filter screen cylinder, it reduces the deformation of the filter screen under pressure and reduces the problems of grease caking and blockage in the screen holes. The equipment can operate continuously for a long time without frequent shutdowns for manual cleaning, reducing daily maintenance workload and equipment failure rate.

[0017] 3. By installing a heating component between the outer shell and the inner shell, and through the meandering flow channel formed by the inlet pipe, outlet pipe and staggered guide plates, the heat medium can circulate evenly and heat the material inside the equipment at a constant temperature. In low-temperature environments, it can melt solidified grease and reduce the occurrence of grease clumping, which affects the oil-water separation efficiency. At the same time, the equipment is equipped with a sealed discharge box and a bottom liquid collection component, and the separated oil and water filtrate is collected in the collection box. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure; Figure 2 This is a schematic diagram of the overall cross-sectional structure; Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 for Figure 2 Enlarged structural diagram at point B; Figure 5 This is a schematic diagram of the shell structure; Figure 6 This is a schematic diagram of the shell cross-section structure; Figure 7 This is a schematic diagram of the material discharge box structure; Figure 8 This is a schematic diagram of the filter component structure; Figure 9 This is a schematic diagram of the cross-sectional structure of the filter assembly; Figure 10 This is a schematic diagram of the material feeding process structure; Figure 11 This is a schematic diagram of the cross-sectional structure for the material feeding process.

[0019] In the diagram, 1. Support frame; 2. Processing assembly; 21. Outer shell; 22. Inner shell; 23. Inner guide vane; 24. Processing main shaft; 25. Spiral extrusion blade; 26. Cleaning scraper; 3. Feeding assembly; 31. Crushing shaft; 32. Crushing blade; 33. Feeding port; 34. Crushing box; 4. Discharge assembly; 41. Discharge box; 42. Fixed column; 43. Sliding column; 44. Spring; 45. Connecting seat; 46. Connecting plate; 47. Rotating seat; 49. Discharge hole; 5. Heating assembly; 51. Inlet pipe; 52. Discharge pipe; 53. Guide plate; 54. Guide channel; 6. Drive assembly; 61. Motor; 62. Pulley; 7. Liquid collection assembly; 71. Collection box; 72. Discharge port; 8. Filter assembly; 81. Filter screen cylinder; 82. Reinforcing rib; 83. Reinforcing ring. Detailed Implementation

[0020] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding the present invention, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0021] Please see Figures 1 to 11 The present invention provides a technical solution: an environmentally friendly treatment device for solid-liquid separation of kitchen waste, including a support frame 1, a treatment component 2, a feeding component 3 and a discharging component 4; The processing assembly 2 includes a housing and a processing spindle 24. The processing spindle 24 is rotatably mounted in the inner cavity of the housing via bearings. A spiral extrusion plate 25 is fixed to the outer circular surface of the processing spindle 24 by welding. The spiral extrusion plate 25 adopts a variable diameter and variable pitch structure design, which can gradually compress materials and improve the dewatering effect. A filter assembly 8 is installed in the sandwich position between the processing spindle 24 and the housing. The filter assembly 8 is fixed inside the housing by bolt locking and is used to isolate the solid and liquid phases. The feeding assembly 3 includes a crushing box 34 and a crushing shaft 31. The crushing box 34 is fixed to one end of the housing by a flange, and the inner cavity of the crushing box 34 is connected to the squeezing cavity inside the housing to ensure smooth material conveying. One end of the crushing shaft 31 is fixed to one end of the processing main shaft 24 by a key, so as to achieve coaxial synchronous rotation. The other end of the crushing shaft 31 is supported inside the crushing box 34 by a bearing. The outer shaft of the crushing shaft 31 is equipped with crushing blades 32 by bolt fastening. The discharge assembly 4 includes a sealing structure, a discharge box 41, a rotating seat 47, and a discharge hole 49. The discharge hole 49 is opened through one end of the shell sidewall and serves as a discharge channel for solid residue. The discharge box 41 is fixed to the outer sidewall of the shell by screws and completely covers the discharge hole 49, which serves to seal and prevent dust and odor leakage. The sealing structure is assembled inside the discharge box 41 and is precisely aligned with the discharge hole 49 to control the discharge flow and maintain the back pressure of the cavity. The rotating seat 47 is fixedly connected to the end of the processing main shaft 24 away from the crushing shaft 31 and can rotate synchronously with the processing main shaft 24. The outer side of the rotating seat 47 is machined with an inclined structure, which slides with the surface of the connecting plate 46 and achieves axial pushing transmission by rotation. The outer circumferential surface of the connecting plate 46 is rotatably equipped with a connecting seat 45, one end of which is fixedly connected to the sealing structure to drive the sealing structure to reciprocate.

[0022] During normal operation, the entire machine is kept horizontally and stably supported by the support frame 1 to reduce shaking during operation. The material is first pre-processed by the feeding component 3 to crush and refine large pieces of kitchen waste. The refined material falls directly into the shell. Then, the processing main shaft 24 drives the spiral extrusion plate 25 to rotate at a uniform speed, using the structural characteristics of variable diameter and variable pitch to extrude the material step by step, squeezing out the oil and water inside the residue. The oil and water generated by the extrusion will be precisely screened by the filter component 8 to achieve solid-liquid separation. Finally, the dehydrated dry residue is pushed to the tail discharge component 4 for discharge.

[0023] Further reading is available. Figure 1-7The sealing structure includes a fixed column 42 and a sliding column 43. The fixed column 42 is fixed to the inner wall of the discharge box 41 by welding, ensuring a stable and secure position. The sliding column 43 is slidably sleeved on the body of the fixed column 42, allowing for smooth sliding along the axial direction of the fixed column 42. A spring 44 is installed in the internal cavity of the fixed column 42. One end of the spring 44 is spot-welded to the end face of the sliding column 43, and the other end of the spring 44 abuts against and limits, fixing it to the inner end face of the fixed column 42. One end of the connecting seat 45 is fixed to the sliding column 43 by a threaded locking method, achieving linkage transmission. During the extrusion operation, the spring 44 is normally in a slightly tightened state, pushing the sliding column 43 to block the discharge hole 49, creating a stable back pressure inside the extrusion chamber and ensuring the dewatering effect of the material. When the rotating seat 47 rotates and pushes the connecting plate 46, the connecting seat... 45 drives the sliding column 43 to compress the spring 44 and retract axially, making way for the discharge hole 49, allowing the dewatered residue to be discharged smoothly. After the pushing force disappears, the spring 44 automatically rebounds and resets, resealing the discharge hole 49. The entire process is a mechanical cycle of opening and closing, requiring no manual adjustment. The connecting plate 46 is designed as a circular disc structure, and the connecting seat 45 is rotatably mounted on the outer circumference of the connecting plate 46 via a pin, allowing for flexible rotation and low transmission resistance. During equipment operation, the rotating seat 47 continuously rotates, and the inclined surface continuously contacts the connecting plate 46 to perform sliding and pushing motion. The circular structure of the connecting plate 46 can smoothly bear the rotational thrust, while the connecting seat 45 can rotate freely, adapting to angular deviations and reducing transmission jamming and jamming. This structure can smoothly convert rotational motion into linear pushing and pulling power, ensuring smooth reciprocating motion of the sealing structure and improving the stability of equipment operation.

[0024] Further reading is available. Figure 1-11 The crushing blades 32 are evenly assembled on the shaft of the crushing shaft 31 in a spiral arrangement, which can cut and break down kitchen waste in all directions, resulting in more uniform crushing. The top surface of the upper box of the crushing box 34 has a feeding port 33, which serves as the material input channel for the equipment. During daily operation, the operator directly pours the kitchen waste into the feeding port 33. After the material enters the crushing box 34, it is cut in all directions by the spiral crushing blades 32 that rotate at high speed with the crushing shaft 31. Whether it is vegetable leaves, vermicelli, small pieces of bone or tangled fibrous debris, it can be evenly chopped and broken down, reducing the entry of large pieces of material into the extrusion chamber and causing blockage, thus providing a uniform and qualified material state for subsequent solid-liquid separation.

[0025] Further reading is available. Figure 2-6The shell is composed of an outer shell 21 and an inner shell 22. The inner shell 22 is assembled inside the center of the outer shell 21 by means of bracket limiting and bolt fixing. The inner sidewall of the inner shell 22 is fixed with an inner guide plate 23 by welding, which is used to guide the oil-water filtrate to flow down quickly and reduce liquid accumulation. During the extrusion separation operation of the equipment, the material is extruded and dehydrated inside the inner shell 22, and the precipitated oil-water mixture drips onto the inner wall. Relying on the guiding effect of the inner guide plate 23, the oil and water will quickly and smoothly slide down and collect, and will not accumulate in the dead corner of the inner cavity. The double shell structure can not only protect the internal working structure, but also provide installation space for subsequent heating, heat preservation and oil leakage prevention structures, and the overall sealing and stability are better.

[0026] Further reading is available. Figure 1-6 A heating assembly 5 is installed in the outer interlayer of the shell. The heating assembly 5 includes an inlet pipe 51, an outlet pipe 52, and guide plates 53. The guide plates 53 are staggered and welded to the interlayer cavity between the outer shell 21 and the inner shell 22. Adjacent guide plates 53 form a meandering guide channel 54, which can extend the flow path of the heat medium and make the heating more uniform. The inlet pipe 51 and the outlet pipe 52 are respectively fixed to the pipe holes at both ends of the outer shell 21 by flange connection. The inlet pipe 51 and the outlet pipe 52 are connected to the two ends of the guide channel 54 to realize the circulation of the heat medium. In low temperature environment or in the case of severe grease solidification, the operator can access the heat medium through the inlet pipe 51. The heat medium flows slowly along the meandering guide channel 54, wrapping the inner shell 22 for uniform heating throughout the process, and finally flows out from the outlet pipe 52 for recycling. Continuous constant temperature heating can melt solidified oil stains, reduce grease caking and screen blockage, make oil-water separation more thorough, and improve the equipment processing efficiency under low temperature conditions.

[0027] Further reading is available. Figure 1 and Figure 2 , Figure 10 and Figure 11 A drive assembly 6 is mounted on one side of the support frame 1. The drive assembly 6 is connected to the end of the crushing shaft 31 to provide power to the whole machine. The drive assembly 6 includes a motor 61 and two pulleys 62. The motor 61 is locked and fixed to the end bracket of the support frame 1 by bolt base. The two pulleys 62 are respectively mounted on the output shaft end of the motor 61 and the shaft end of the crushing shaft 31 by flat key fixing. Power is transmitted through belt drive. After the equipment is started, the motor 61 runs and outputs power. Through the belt drive of the two sets of pulleys 62, the power is stably transmitted to the crushing shaft 31. Relying on the coaxial fixed structure, the main processing shaft 24 is driven to rotate synchronously.

[0028] Further reading is available. Figure 2 , Figure 4 , Figure 8 and Figure 9The filter assembly 8 includes a filter cylinder 81. Multiple reinforcing ribs 82 are welded to the outer wall of the filter cylinder 81 to enhance its overall compressive strength. Multiple reinforcing rings 83 are welded to the inner wall of the filter cylinder 81, providing radial reinforcement and preventing deformation. The reinforcing ribs 82 are arranged vertically along the axial direction of the filter cylinder 81, while the reinforcing rings 83 are arranged circumferentially along the inner wall of the filter cylinder 81. These two ribs are perpendicular to each other in spatial structure, forming a stable grid reinforcement structure. When the equipment continuously compresses materials, the filter cylinder 81 withstands the material compression pressure for a long time. The outer reinforcing ribs 82 and the inner reinforcing rings 83 form a three-dimensional reinforcement frame, reducing the likelihood of the filter screen bulging, deforming, or cracking under pressure. During operation, oil and water can flow smoothly through the mesh, while solid residue is reliably retained, ensuring the accuracy of solid-liquid separation and extending the service life of the filter screen, reducing the hassle of frequent replacement and maintenance.

[0029] Further reading is available. Figure 2-4 , Figure 10 and Figure 11 Multiple cleaning scrapers 26 are fixed to the outer edge of the spiral extrusion plate 25 by screws. The cleaning scrapers 26 are slidably fitted onto the inner wall surface of the filter cylinder 81, and each cleaning scraper 26 is arranged between the gaps of two adjacent reinforcing rings 83. They can rotate synchronously with the spiral structure and clear blockages in real time. During the entire operation of the equipment, the cleaning scrapers 26 follow the spiral extrusion plate 25 to continuously rotate in a circular motion, continuously wiping and scraping against the inner wall of the filter cylinder 81. This can promptly remove grease, food residue, and plant fibers adhering to the mesh, reducing the accumulation and blockage of the screen holes. The entire process is self-cleaning, eliminating the need for manual screen cleaning during machine shutdown, ensuring continuous operation efficiency of the equipment.

[0030] Further reading is available. Figures 1-6 The inner side of the support frame 1 is equipped with a liquid collection assembly 7, which includes a collection box 71. The collection box 71 is bolted and fixed to the inner crossbeam of the support frame 1, ensuring a stable position without shaking. The upper opening of the collection box 71 is connected to the inside of the filtrate chamber of the shell, and is used to collect the separated oil-water filtrate. The lower side wall of the collection box 71 has a drain port 72 for convenient centralized discharge of the collected wastewater and grease. All the oil-water filtrate separated by the equipment falls into the collection box 71 below through the internal guide structure of the shell for centralized storage, preventing leakage and spillage that could pollute the site. After the filtrate accumulates to a certain amount, the operator can discharge it through the drain port 72 and transport it to the subsequent oil-water separation equipment for further treatment. The overall collection is neat and the sewage discharge is convenient, meeting the requirements of environmental protection operations.

[0031] The working principle and usage process of this invention: When in use, the operator puts kitchen waste into the feed port 33 at the top of the crushing box 34. After starting the motor 61, the crushing shaft 31 and the processing main shaft 24 are driven to rotate synchronously through the belt drive of the two sets of pulleys 62. During rotation, the spirally arranged crushing blades 32 on the crushing shaft 31 will first shear and break up the mixed residues, long fiber debris, and blocky food waste, cutting large pieces of material into small particles to reduce the blockage of large debris in the subsequent extrusion structure; the shredded material falls directly into the inner cavity of the shell and is continuously pushed forward by the variable diameter and variable pitch spiral extrusion blades 25 on the outside of the processing main shaft 24. As the cavity space gradually shrinks, the material is extruded step by step, and the sewage and grease contained inside will be extruded and separated. The separated oil-water mixture passes through the mesh of the filter cylinder 81 to complete solid-liquid separation. The axial reinforcing ribs 82 on the outside of the filter cylinder 81 and the circumferential reinforcing rings 83 on the inside can reduce the deformation of the filter cylinder 81 under pressure and ensure filtration stability. At the same time, the cleaning scraper 26 on the spiral extrusion plate 25 will slide and wipe against the inner wall of the filter screen to remove the adhering grease and fiber residue in time, reduce the clogging of the screen holes, and realize automatic unclogging during operation. The separated oil-water filtrate flows down quickly along the inner guide plate 23 on the inner wall of the inner shell 22 and finally flows into the collection box 71 at the bottom. After accumulation, it is discharged from the drain port 72 for convenient subsequent centralized treatment. In addition, the heating component 5 between the outer shell 21 and the inner shell 22 can be introduced with a heat medium through the inlet pipe 51 and circulate through the meandering guide channel 54 formed by the staggered guide plate 53 to heat the inside of the shell at a constant temperature, which can melt solidified grease, reduce the caking of oil stains, and further improve the solid-liquid separation efficiency. After dehydration, the solid residue is pushed by the spiral structure to the discharge hole 49 at the end of the shell. The equipment automatically controls the discharge by relying on the pure mechanical structure of the main shaft linkage: the processing main shaft 24 drives the rotating seat 47 at the end to rotate synchronously. The inclined surface of the rotating seat 47 slides and pushes the connecting plate 46. Through the connecting seat 45, the sliding column 43 moves axially against the elastic force of the spring 44, opening the discharge hole 49 to complete the automatic discharge. At the same time, the rotating seat 47 drives the cleaning plate 48 to scrape down. At other positions, the sliding column 43 is pushed by the elastic force of the spring 44 to close the discharge hole 49. The discharge is only carried out when the rotating seat 47 rotates and lifts the corresponding sliding column 43. While ensuring the discharge, the working back pressure in the extrusion chamber can be stably maintained, thereby ensuring the dehydration effect and realizing the closed slag discharge to reduce the overflow of odor.

[0032] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and these variations still fall within the protection scope of the present invention.

Claims

1. An environmentally friendly solid-liquid separation and treatment device for kitchen waste, characterized in that, include: Support frame (1); The processing assembly (2) includes a housing and a processing spindle (24). The processing spindle (24) is rotatably mounted inside the housing. A spiral extrusion plate (25) is fixedly mounted on the outer surface of the processing spindle (24). The spiral extrusion plate (25) is a variable diameter and variable pitch spiral plate. A filter assembly (8) is provided between the processing spindle (24) and the housing. The filter assembly (8) is fixedly mounted inside the housing. The feeding assembly (3) includes a crushing box (34) and a crushing shaft (31). The crushing box (34) is fixedly installed at one end of the housing and is connected to the inside of the housing. One end of the crushing shaft (31) is fixedly installed at one end of the processing main shaft (24), and the other end of the crushing shaft (31) is rotatably installed inside the crushing box (34). A crushing blade (32) is fixedly installed on the outside of the crushing shaft (31). The discharge assembly (4) includes a sealing structure, a discharge box (41), a rotating seat (47), and a discharge hole (49). The discharge hole (49) is located at one end of the housing. The discharge box (41) is fixedly installed on one side of the housing and covers the outside of the discharge hole (49). The sealing structure is installed inside the discharge box (41) and corresponds to the position of the discharge hole (49). The rotating seat (47) is rotatably installed on one side of the housing. The rotating seat (47) is fixedly connected to the end of the processing main shaft (24) away from the crushing shaft (31). The rotating seat (47) is fixedly connected to the end of the processing main shaft (24) away from the crushing shaft (31). The rotating seat (47) rotates synchronously with the processing main shaft (24). An inclined surface is provided on the outside of the rotating seat (47). The inclined surface is slidably engaged with the connecting plate (46). A connecting seat (45) is rotatably installed on the periphery of the connecting plate (46). One end of the connecting seat (45) is connected to the sealing structure.

2. The environmentally friendly solid-liquid separation treatment equipment for kitchen waste according to claim 1, characterized in that: The sealing structure includes a fixed column (42) and a sliding column (43). The fixed column (42) is fixedly installed on the inner wall of the discharge box (41). The sliding column (43) is slidably installed on the fixed column (42). A spring (44) is installed on the inner side of the fixed column (42). One end of the spring (44) is fixedly connected to the sliding column (43), and the other end of the spring (44) is abutted and fixed to the inner end face of the fixed column (42). One end of the connecting seat (45) is fixedly connected to the sliding column (43).

3. The environmentally friendly solid-liquid separation treatment equipment for kitchen waste according to claim 2, characterized in that: The connecting plate (46) is circular in shape, and the connecting seat (45) is rotatably mounted on the outer circumferential surface of the connecting plate (46).

4. The environmentally friendly solid-liquid separation treatment equipment for kitchen waste according to claim 1, characterized in that: The crushing blades (32) are arranged in a spiral shape and installed on the crushing shaft (31). The upper side of the crushing box (34) is provided with a feeding port (33).

5. The environmentally friendly solid-liquid separation treatment equipment for kitchen waste according to claim 1, characterized in that: The housing includes an outer shell (21) and an inner shell (22). The inner shell (22) is installed inside the outer shell (21), and an inner guide vane (23) is fixedly installed on the inner wall of the inner shell (22).

6. The environmentally friendly solid-liquid separation treatment equipment for kitchen waste according to claim 5, characterized in that: A heating assembly (5) is installed on the outside of the housing. The heating assembly (5) includes an inlet pipe (51), an outlet pipe (52), and a guide plate (53). The guide plates (53) are staggered and installed between the outer shell (21) and the inner shell (22). A meandering guide channel (54) is formed between the guide plates (53). The inlet pipe (51) and the outlet pipe (52) are respectively installed at both ends of the outer shell (21), and the inlet pipe (51) and the outlet pipe (52) are respectively connected to both ends of the guide channel (54).

7. The environmentally friendly solid-liquid separation treatment equipment for kitchen waste according to claim 1, characterized in that: One end of the support frame (1) is equipped with a drive assembly (6), which is connected to one end of the crushing shaft (31). The drive assembly (6) includes a motor (61) and two pulleys (62). The motor (61) is fixedly installed at one end of the support frame (1), and the two pulleys (62) are respectively fixedly installed at the output end of the motor (61) and one end of the crushing shaft (31).

8. The environmentally friendly solid-liquid separation treatment equipment for kitchen waste according to claim 1, characterized in that: The filter assembly (8) includes a filter cylinder (81), with multiple reinforcing ribs (82) fixedly installed on the outer side of the filter cylinder (81) and multiple reinforcing rings (83) fixedly installed on the inner wall of the filter cylinder (81). The reinforcing ribs (82) are arranged axially along the filter cylinder (81), and the reinforcing rings (83) are arranged circumferentially along the inner wall of the filter cylinder (81). The reinforcing ribs (82) and the reinforcing rings (83) are spatially perpendicular to each other.

9. The environmentally friendly solid-liquid separation treatment equipment for kitchen waste according to claim 8, characterized in that: Multiple cleaning scrapers (26) are fixedly installed on the outer side of the spiral extrusion plate (25). The cleaning scrapers (26) are slidably installed on the inner wall of the filter screen cylinder (81) and the cleaning scrapers (26) are located between adjacent reinforcing rings (83).

10. The environmentally friendly solid-liquid separation treatment equipment for kitchen waste according to claim 1, characterized in that: The support frame (1) is equipped with a liquid collection assembly (7) on its inner side. The liquid collection assembly (7) includes a collection box (71). The collection box (71) is fixedly installed on the inner side of the support frame (1). The upper end of the collection box (71) is connected to the interior of the shell. A drain port (72) is provided on one side of the collection box (71).

Images