Kitchen garbage treatment system

Abstract

The kitchen garbage treatment system comprises a treatment bin, a crushing part, a filtering part, a stirring part and a tail gas treatment part, the treatment bin is provided with a crushing chamber, a separation chamber and a microorganism chamber which are sequentially communicated; the crushing part is arranged in the crushing chamber; the filtering part is arranged in the separation chamber; the stirring part comprises a stirring part, a connecting arm and a flexible scraping plate, the stirring part is rotationally arranged in the microorganism chamber, the connecting arm is provided with a fixed end and a movable end, the fixed end is arranged on the stirring part, the distance between the movable end and the fixed end is adjustable in the direction perpendicular to the rotating axis of the stirring part, the movable end can be maintained at the adjusted position, and the flexible scraping plate is arranged at the movable end. The inner wall of the microorganism chamber is pressed and propped; the tail gas treatment part communicates with the microorganism chamber and is used for purifying waste gas. According to the scheme, the flexible scrapers can stably abut against the inner wall of the microorganism chamber, it is guaranteed that the flexible scrapers are effectively attached to the inner wall of the microorganism chamber, and therefore the scraping capacity of the flexible scrapers on materials on the inner wall of the microorganism chamber is guaranteed, and the kitchen garbage treatment efficiency of the system is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen waste treatment equipment, and particularly relates to a kitchen waste treatment system. Background Art

[0002] Kitchen waste is mainly composed of organic materials such as food waste and agricultural and sideline products, and has the characteristics of high water content, easy to rot, and easy to produce malodor. Currently, when treating kitchen waste, processes such as crushing, filtering, stirring, and microbial degradation are usually carried out in sequence.

[0003] Publication No. CN217492114U discloses a kitchen waste processor. When it works, kitchen waste enters from the feed port at the upper end of the housing, is ground and crushed by a crushing device at the bottom of the feed port of the housing, and then falls into a solid-liquid separation device. After being fully compressed, the oil and water contained in the kitchen waste are fully separated from it. The liquid enters the oil-water separation device, and the dry solid enters the microbial reaction device; the dry solid is stirred in the microbial reaction device, comes into full contact with the microorganisms, and is degraded by the microorganisms. The waste gas generated during the degradation process is absorbed and treated by the tail gas treatment device. After the biodegradation is completed, the UV lamp, spray head, and solenoid valve are opened, and the residue is then discharged into the sewer after being disinfected by the water flow passing through the UV lamp.

[0004] However, when the existing kitchen waste processor stirs the dry solid and the microorganisms, in order to prevent the material from adhering to the inner wall of the microbial chamber, a flexible scraper connected to the stirring rod is usually used for scraping. However, due to the continuous friction between the flexible scraper and the chamber wall, the flexible scraper is easily worn, reducing the scraping ability of the flexible scraper. Summary of the Invention

[0005] The purpose of the present invention is to overcome the above technical deficiencies, and propose a kitchen waste treatment system to solve the technical problem in the existing technology that a flexible scraper is usually connected to the stirring rod, and the flexible scraper is driven to rotate synchronously with the stirring rod to scrape the adhesion on the chamber wall, and the contact pressure between the flexible scraper and the chamber wall is adjusted by adjusting the rotation speed of the stirring rod. However, due to the continuous friction between the flexible scraper and the chamber wall, the flexible scraper is easily worn, reducing the scraping ability of the flexible scraper.

[0006] To achieve the above technical purpose, the present invention adopts the following technical solutions: The present invention provides a kitchen waste treatment system, including: A treatment chamber having a crushing chamber, a separation chamber, and a microbial chamber that are sequentially connected; A crushing part provided in the crushing chamber for crushing materials; A filtering part provided in the separation chamber for filtering out oil; The stirring part includes a stirring member, a connecting arm, and a flexible scraper. The stirring member is rotatably arranged in the microorganism chamber for stirring materials. The connecting arm has a fixed end and a movable end. The fixed end is arranged on the stirring member, and the distance between the movable end and the fixed end in a direction perpendicular to the rotation axis of the stirring member is adjustable and can be maintained at the adjusted position. The flexible scraper is arranged at the movable end and presses against the inner wall of the microorganism chamber; and The tail gas treatment part is communicated with the microorganism chamber for purifying waste gas.

[0007] In some embodiments, the connecting arm includes a mounting arm, a telescopic arm, and a locking structure. One end of the mounting arm is mounted on the stirring member. The telescopic arm is mounted on the mounting arm and can move relative to the mounting arm along its extending direction. The locking structure connects the mounting arm and the telescopic arm and can lock the telescopic arm to the mounting arm and can unlock the telescopic arm; The fixed end is located at one end of the mounting arm connecting the stirring member, and the movable end is located at one end of the telescopic arm away from the fixed end.

[0008] In some embodiments, the mounting arm is provided with a plurality of mounting holes, and the plurality of mounting holes are arranged at intervals along the extending direction of the mounting arm. The telescopic arm is provided with a locking screw hole, and the locking screw hole can selectively communicate with the mounting hole; The locking structure includes a locking bolt. The locking bolt is threadedly connected to the telescopic arm through the locking screw hole and can be inserted into the mounting hole communicating with the locking screw hole.

[0009] In some embodiments, one of the mounting arm and the telescopic arm is provided with a first sliding groove, and the other is provided with a first sliding block slidably arranged in the first sliding groove. The extending direction of the first sliding groove is the same as the extending direction of the first sliding block.

[0010] In some embodiments, the stirring part further includes an elastic member. The elastic member connects the mounting arm and the telescopic arm and is used to drive the movable end to move in a direction away from the fixed end.

[0011] In some embodiments, the telescopic arm has a mounting channel, and the inner wall of the mounting channel is provided with an annular protrusion. The mounting arm has a guiding arm extending into the mounting channel, and the guiding arm slidably penetrates inside the annular protrusion; The elastic member includes a compression spring. The compression spring is sleeved on the guiding arm and one end presses against the annular protrusion.

[0012] In some embodiments, the stirring part further includes a sealing ring. The sealing ring is mounted on the inner wall of the mounting channel and is located on one side of the mounting channel close to the fixed end.

[0013] In some embodiments, the stirring member includes a rotating shaft and stirring blades. The rotating shaft is rotatably installed in the microorganism chamber and is provided with a plug hole. The side wall of the plug hole is provided with a fixing screw hole communicating with the outside. The fixed end is correspondingly provided with a connection hole for the fixing screw hole. The stirring blades are arranged on the rotating shaft. The scraping wall assembly further includes a fixing bolt. The fixing bolt is threadedly connected to the rotating shaft through the fixing screw hole and passes through the connection hole.

[0014] In some embodiments, the movable end has an assembly channel, and the side wall of the assembly channel is provided with an assembly screw hole. The stirring part further includes an assembly arm and an assembly bolt. The assembly arm connects the flexible scraping plate and is inserted into the assembly channel. A matching hole is correspondingly provided for the assembly screw hole. The assembly bolt is threadedly connected to the movable end through the assembly screw hole and is inserted into the matching hole.

[0015] In some embodiments, the treatment chamber further has an inlet communicating with the crushing chamber. The crushing part includes a cutter barrel, a cutter disc, two toothed rollers and two groups of cutter blades. Wherein, the two toothed rollers mesh with each other and can rotate relatively. The cutter barrel is located on one side of the toothed roller close to the inlet, and its axial direction intersects with the arrangement direction of the inlet and the separation chamber. The cutter disc is arranged in the cutter barrel, and its axial direction is the same as that of the cutter barrel and can rotate relative to the cutter barrel around its own axial direction. A plurality of cutter blades are provided in each group, and the plurality of cutter blades are alternately arranged along the axial direction of the cutter barrel between the cutter barrel and the cutter disc.

[0016] In some embodiments, the axis of the cutter disc is located on one side of the axis of the cutter barrel close to the inlet and rotates eccentrically relative to the cutter barrel.

[0017] The crushing part further includes an air nozzle. The air nozzle is arranged in the crushing chamber, communicates with an external air source, and is used for spraying air flow towards the cutter blades.

[0018] In some embodiments, the cutter blade includes a blade, and cutting edges are respectively arranged on both sides of the blade in the rotation direction of the cutter disc relative to the cutter barrel.

[0019] In some embodiments, the crushing part further includes a crushing driving member. The crushing driving member is installed on the treatment chamber and is connected to at least one of the toothed rollers for driving the two toothed rollers to rotate relatively, and is at least connected to one of the cutter disc and the cutter barrel for driving the cutter disc to rotate relative to the cutter barrel around its own axial direction.

[0020] In some embodiments, the crushing part further includes a torque sensor. The torque sensor is arranged on the toothed roller for monitoring the torque of the toothed roller.

[0021] In some embodiments, the toothed roll includes a roll shaft and a plurality of crushing teeth. The roll shaft is rotatably installed in the crushing chamber. The plurality of crushing teeth are installed on the roll shaft and are arranged at intervals along the axial direction of the roll shaft, and a gap is formed between two adjacent crushing teeth. The crushing part further includes a hook knife. The hook knife is installed in the crushing chamber and has a material-hooking section extending into the gap. The material-hooking section is arranged in a semi-circular arc shape, and the arc opening thereof faces the roll shaft.

[0022] In some embodiments, the hook knife can rotate relative to the inner wall of the crushing chamber and adjust the included angle between the material-hooking section and the horizontal direction when rotating. The crushing part further includes an adjusting member. The adjusting member is installed in the crushing chamber and is connected to the hook knife for driving the hook knife to rotate relative to the crushing chamber.

[0023] In some embodiments, the adjusting member includes a mounting seat, a mounting shaft and an adjusting motor. The mounting seat is connected to the mounting shaft and is rotatably installed in the crushing chamber via the mounting shaft. A part of the mounting shaft extends out of the crushing chamber. The output shaft of the adjusting motor is connected to the mounting shaft and drives the mounting shaft to rotate. The hook knife is detachably installed on the mounting seat.

[0024] In some embodiments, the treatment bin further has an oil chamber. The oil chamber communicates with the separation chamber and is located below the separation chamber. The filtering part includes a filter screen. The filter screen is arranged between the separation chamber and the oil chamber.

[0025] In some embodiments, the crushing chamber, the separation chamber and the microorganism chamber are arranged in sequence from top to bottom. The crushing chamber and the microorganism chamber are respectively located at two ends of the separation chamber. The food waste treatment system further includes a feeding auger. The feeding auger is arranged in the separation chamber for driving the material to move towards the microorganism chamber.

[0026] Compared with the prior art, after the food waste treatment system provided by the present invention is used for a certain period of time, when the flexible scraper is severely worn, the distance between the movable end and the fixed end can be increased, so that the flexible scraper can effectively press against the inner wall of the microorganism chamber again, and the distance between the movable end and the fixed end is maintained at the adjusted value to ensure that the flexible scraper stably contacts the inner wall of the microorganism chamber.

[0027] Thus, when the contact pressure between the flexible scraper and the inner wall of the microbial chamber is detected to be in a high-pressure state, the rotation speed of the rotating shaft can be reduced, thereby reducing the resistance to material propulsion, so as to reduce the contact pressure between the flexible scraper and the inner wall of the microbial chamber, and avoid equipment overload, increased energy consumption, and serious wear of the flexible scraper under high pressure. And when the contact pressure between the flexible scraper and the inner wall of the microbial chamber is in a low-pressure state, the rotation speed of the rotating shaft can be increased, and the centrifugal force is used to enhance the fit between the flexible scraper and the inner wall of the microbial chamber, and the contact pressure between the two is increased. Therefore, when adjusting between the two states, since the distance between the movable end and the fixed end can be maintained at the adjusted value after expansion, the flexible scraper can stably press against the inner wall of the microbial chamber, ensuring the effective fit between the flexible scraper and the inner wall of the microbial chamber, thereby ensuring the scraping ability of the flexible scraper for the materials on the inner wall of the microbial chamber and improving the treatment efficiency of the system for kitchen waste. Description of the Drawings

[0028] Figure 1 is a cross-sectional view of the kitchen waste treatment system provided by an embodiment of the present invention; Figure 2 is Figure 1 a schematic diagram of the kitchen waste treatment system (part of the crushing part is shown); Figure 3 is Figure 1 a cross-sectional view of the stirring part in Figure 4 is Figure 3 a schematic diagram of the stirring part in Figure 5 is Figure 4 a partial schematic diagram of the stirring part in Figure 6 is Figure 5 an exploded view of the stirring part in Figure 7 is Figure 6 a cross-sectional view of the telescopic arm in Figure 8 is Figure 1 a cross-sectional view of the crushing part from another angle in Figure 9 is Figure 1 a top view of the toothed roller in Figure 10 is Figure 1 a schematic diagram of the hook knife in Figure 11 is Figure 10 a front view of the hook knife in

[0029] Description of the Reference Numerals: 1. Processing bin; 1a. Crushing chamber; 1b. Separation chamber; 1c. Microbial chamber; 1d. Oil chamber; 1e. Inlet; 2. Crushing section; 21. Tooth roller; 211. Roller shaft; 212. Crushing teeth; 212a. Gap; 22. Knife cylinder; 23. Knife disc; 24. Cutting knife; 25. Jet nozzle; 26. Crushing drive member; 27. Hook knife; 271. Hook material section; 28. Mounting seat; 3. Filter section; 4. Stirring section; 41. Stirring member; 411. Stirring blade; 412. Rotating shaft; 412a. Insertion hole; 412b. Fixed screw hole; 42. Connecting arm; 421. Fixed end; 421a. Connecting hole; 422. Movable end; 422a. Assembly channel; 422b. Assembly screw hole; 423. Mounting arm; 423a. Mounting hole; 424. First slider; 425. Guide arm; 426. Telescopic arm; 426a. Locking screw hole; 426b. Mounting channel; 426c. First chute; 427. Annular protrusion; 428. Locking structure; 429. Locking bolt; 43. Flexible scraper; 44. Elastic member; 45. Fixed bolt; 46. Assembly arm; 46a. Fitting hole; 47. Assembly bolt; 48. Driving motor; 5. Tail gas treatment section; 6. Feeding auger. Detailed implementation manner

[0030] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0031] In order to solve the technical problem in the prior art that a flexible scraper is usually connected to a stirring rod, the flexible scraper is synchronously driven by the stirring rod to rotate to scrape off the adhesion on the bin wall, and the contact pressure between the flexible scraper and the bin wall is adjusted by adjusting the rotation speed of the stirring rod. However, due to the continuous friction between the flexible scraper and the bin wall, the flexible scraper is easily worn, reducing the scraping ability of the flexible scraper. The present invention provides a kitchen waste treatment system, in which the flexible scraper can stably press against the inner wall of the microbial chamber, ensuring the effective fit between the flexible scraper and the inner wall of the microbial chamber, thereby ensuring the scraping ability of the flexible scraper for the materials on the inner wall of the microbial chamber and improving the treatment efficiency of the system for kitchen waste.

[0032] Please refer to Figures 1 to 5 , Figures 1 to 5The figure is a schematic structural diagram of a kitchen waste treatment system in an embodiment of the present invention. The kitchen waste treatment system includes a treatment bin 1, a crushing section 2, a filtering section 3, a stirring section 4, and an exhaust gas treatment section 5. The treatment bin 1 has a crushing chamber 1a, a separation chamber 1b, and a microorganism chamber 1c that are connected in sequence. The crushing section 2 is arranged in the crushing chamber 1a and is used for crushing materials. The filtering section 3 is arranged in the separation chamber 1b and is used for filtering out oil. The stirring section 4 includes a stirring member 41, a connecting arm 42, and a flexible scraper 43. The stirring member 41 is rotatably arranged in the microorganism chamber 1c and is used for stirring materials. The connecting arm 42 has a fixed end 421 and a movable end 422. The fixed end 421 is arranged on the stirring member 41. The distance between the movable end 422 and the fixed end 421 in the direction perpendicular to the rotation axis of the stirring member 41 is adjustable and can be maintained at the adjusted position. The flexible scraper 43 is arranged at the movable end 422 and presses against the inner wall of the microorganism chamber 1c. The exhaust gas treatment section 5 is communicated with the microorganism chamber 1c and is used for purifying waste gas.

[0033] After the kitchen waste treatment system provided by the present invention is used for a certain period of time, when the flexible scraper 43 is severely worn, the distance between the movable end 422 and the fixed end 421 can be increased, so that the flexible scraper 43 can effectively press against the inner wall of the microorganism chamber 1c again, and the distance between the movable end 422 and the fixed end 421 is maintained at the adjusted value, ensuring that the flexible scraper 43 stably contacts the inner wall of the microorganism chamber 1c.

[0034] Therefore, when it is monitored that the contact pressure between the flexible scraper 43 and the inner wall of the microorganism chamber 1c is in a high-pressure state, the rotation speed of the rotating shaft 412 can be reduced, thereby reducing the resistance of material propulsion, so as to reduce the contact pressure between the flexible scraper 43 and the inner wall of the microorganism chamber 1c, and avoid equipment overload, increased energy consumption, and severe wear of the flexible scraper 43 under high pressure. And when the contact pressure between the flexible scraper 43 and the inner wall of the microorganism chamber 1c is in a low-pressure state, the rotation speed of the rotating shaft 412 can be increased, and the centrifugal force is used to enhance the fit degree between the flexible scraper 43 and the inner wall of the microorganism chamber 1c, and the contact pressure between the two is increased. Therefore, during the adjustment of the two states, since the distance between the movable end 422 and the fixed end 421 can be maintained at the adjusted value after expansion, the flexible scraper 43 can stably press against the inner wall of the microorganism chamber 1c, ensuring the effective fit between the flexible scraper 43 and the inner wall of the microorganism chamber 1c, thereby ensuring the scraping ability of the flexible scraper 43 for the materials on the inner wall of the microorganism chamber 1c and improving the treatment efficiency of the system for kitchen waste.

[0035] It should be noted that the connecting arm 42 can be set in the form of a robotic arm, a hydraulic cylinder, or an electric push rod to realize the adjustment of the distance between the fixed end 421 and the movable end 422, or other forms.

[0036] In one embodiment, please refer to Figures 5 to 7, the connecting arm 42 includes a mounting arm 423, a telescopic arm 426 and a locking structure 428. One end of the mounting arm 423 is mounted on the stirring member 41. The telescopic arm 426 is mounted on the mounting arm 423 and can move relative to the mounting arm 423 along its extending direction. The locking structure 428 connects the mounting arm 423 and the telescopic arm 426, and can lock the telescopic arm 426 to the mounting arm 423 and unlock the telescopic arm 426. The fixed end 421 is located at one end of the mounting arm 423 connected to the stirring member 41, and the movable end 422 is located at one end of the telescopic arm 426 away from the fixed end 421.

[0037] In this embodiment, the telescopic arm 426 is unlocked by the locking structure 428 to adjust the distance between the fixed end 421 and the movable end 422, and the telescopic arm 426 is locked by the locking structure 428 to limit the movement of the telescopic end relative to the mounting arm 423 after the position of the movable end 422 is adjusted, ensuring that the flexible scraper 43 stably presses against the bin wall. The structure is simple and cost-saving.

[0038] It should be noted that the locking structure 428 can be set in the form of a tie or a pin, and corresponding slots and holes for the tie or the pin are respectively provided on the mounting arm 423 and the telescopic arm 426, or in other forms.

[0039] In one embodiment, the mounting arm 423 is provided with a plurality of mounting holes 423a which are arranged at intervals along the extending direction of the mounting arm 423. The telescopic arm 426 is provided with a locking screw hole 426a which can selectively communicate with the mounting hole 423a. The locking structure 428 includes a locking bolt 429 which is threadedly connected to the telescopic arm 426 through the locking screw hole 426a and can be inserted into the mounting hole 423a communicating with the locking screw hole 426a.

[0040] In this embodiment, when the flexible scraper 43 wears a certain amount, the locking bolt 429 can be loosened so that the locking bolt 429 disengages from the mounting hole 423a, and the telescopic arm 426 is moved so that the movable end 422 moves away from the fixed end 421, and further the flexible scraper 43 can be reattached to the bin wall. Then the locking bolt 429 is tightened again so that the locking bolt 429 extends into the next mounting hole 423a, and further the flexible scraper 43 stably presses against the bin wall. The structure is simple and reliable.

[0041] In one embodiment, one of the mounting arm 423 and the telescopic arm 426 is provided with a first sliding groove 426c, and the other is provided with a first sliding block 424 slidably arranged in the first sliding groove 426c. The extending direction of the first sliding groove 426c is the same as the extending direction of the first sliding block 424.

[0042] In this embodiment, the first slider 424 is slidably disposed in the first chute 426c. On the one hand, it facilitates the alignment of the mounting hole 423a and the locking screw hole 426a. On the other hand, it can effectively prevent the telescopic arm 426 from deviating relative to the mounting arm 423, improving the assembly convenience.

[0043] In one of the embodiments, the stirring part 4 further includes an elastic member 44. The elastic member 44 connects the mounting arm 423 and the telescopic arm 426 and is used to drive the movable end 422 to move in a direction away from the fixed end 421.

[0044] In this embodiment, when it is necessary to increase the distance between the movable end 422 and the fixed end 421, after loosening the locking bolt 429, the elastic member 44 can automatically push the telescopic arm 426, thereby increasing the distance between the movable end 422 and the fixed end 421, so that the flexible scraper 43 fits against the bin wall. Then, manually fine-tune the telescopic arm 426 to align the locking screw hole 426a with the mounting hole 423a, further improving the assembly convenience.

[0045] It should be noted that the elastic member 44 can be set as a gas spring, a wave spring or other forms.

[0046] In one of the embodiments, the telescopic arm 426 has a mounting channel 426b. An annular protrusion 427 is provided on the inner wall of the mounting channel 426b. The mounting arm 423 has a guiding arm 425 extending into the mounting channel 426b. The guiding arm 425 slidably passes through the inside of the annular protrusion 427; the elastic member 44 includes a compression spring. The compression spring is sleeved on the guiding arm 425 and one end abuts against the annular protrusion 427.

[0047] In this embodiment, the compression spring is assembled between the guiding arm 425 and the annular protrusion 427. The compression spring is isolated from the external materials through the mounting channel 426b to prevent the compression spring from being affected by the external materials. Specifically, in this solution, the first slider 424 is disposed on the mounting arm 423, and the first chute 426c is disposed on the inner wall of the mounting channel 426b. A sealing ring is installed on the inner wall of the mounting channel 426b and is located on one side of the mounting channel 426b close to the fixed end 421 to ensure the sealing performance of the mounting channel 426b. It should be understood that the above-mentioned sealing ring has a notch corresponding to the first slider 424.

[0048] It should be noted that the stirring member 41 can be set as a paddle, a stirring plate, a stirring arm or other forms.

[0049] In one embodiment, the stirring member 41 includes a rotating shaft 412 and stirring blades 411. The rotating shaft 412 is rotatably installed in the microorganism chamber 1c and is provided with a plug hole 412a. The side wall of the plug hole 412a is provided with a fixing screw hole 412b communicating with the outside. The fixed end 421 is correspondingly provided with a connection hole 421a for the fixing screw hole 412b. The stirring blades 411 are arranged on the rotating shaft 412. The wall scraping assembly further includes a fixing bolt 45. The fixing bolt 45 is threadedly connected to the rotating shaft 412 through the fixing screw hole 412b and passes through the connection hole 421a.

[0050] In this embodiment, through the cooperation of the fixing bolt 45, the plug hole 412a and the fixing screw hole 412b, the connecting arm 42 can be detached from the rotating shaft 412, which is convenient for maintenance and replacement, improves the convenience, and has a simple and reliable structure.

[0051] It should be noted that the rotating shaft 412 of the stirring blade 411 is connected to a driving motor 48, and is driven to rotate by the driving motor 48. The driving motor 48 is installed outside the microorganism chamber 1c. In addition, the stirring blade 411 can be set in the form of multiple stirring arms, the form of multiple fan-shaped sheets, or other forms.

[0052] In one embodiment, the stirring blade 411 is set as a variable-diameter spiral structure, and the whole can be detached from the microorganism chamber 1c. Its specific structure and principle are prior art and will not be elaborated here. Specifically, the diameter of the variable-diameter spiral structure changes periodically between 80 mm and 120 mm, forming a "shrinking-expanding" dynamic cycle. At the feed inlet, the outer diameter of the spiral is the minimum design value of 80 mm ± 5%. By reducing the spiral pitch, a local high-shear force field is formed. The material is subjected to radial compression force and circumferential shear force in this area, reducing the resistance for the material to enter and avoiding the risk of blockage, and promoting the initial mixing of the bacterial agent and the material. In the middle transition section, the outer diameter of the spiral changes periodically between 80 mm and 120 mm, forming a "shrinking-expanding" dynamic cycle, simulating the segmentation movement of the intestinal circular muscle, and significantly improving the contact efficiency between the material and the bacterial agent. Finally, at the discharge port section, the outer diameter of the spiral gradually increases to the maximum value of 120 mm ± 5%. The enlarged-diameter structure is used to enhance the axial propulsion force. When the material is axially propelled, eddy currents are generated due to the sudden expansion of the space, forming a reverse shearing effect, and at the same time ensuring the efficient discharge of the fully mixed material.

[0053] At the same time, combined with the variable-speed gradient of the rotating shaft 412 of 5 → 15 → 5 rpm and a cycle of 3 minutes, the high rotation speed in the contraction section enhances the shearing strength, the low rotation speed in the expansion section prolongs the mixing time, and at the same time, the reverse drag of the eddy current is used to form a reverse shear, realizing an alternating action mode of "pushing-pulling" and "fast shearing-slow pushing", realizing the reciprocating shearing movement of the material in the bin, improving the mixing uniformity, and perfectly simulating the mechanical characteristics of the intestinal segmentation movement. The test data shows that this design improves the mixing efficiency by 40% compared with the traditional stirring method.

[0054] In addition, the processing chamber 1 is made of stainless steel, and the internal rotating shaft 412 and the stirring blade 411 are made of engineering plastics, and need to be tested for waterproofness and airtightness.

[0055] In one embodiment, the movable end 422 has an assembly channel 422a, and the side wall of the assembly channel 422a is provided with an assembly screw hole 422b; the stirring portion 4 also includes an assembly arm 46 and an assembly bolt 47, the assembly arm 46 is connected to the flexible scraper 43, and is inserted into the assembly channel 422a, and is provided with a matching hole 46a corresponding to the assembly screw hole 422b, and the assembly bolt 47 is threadedly connected to the movable end 422 via the assembly screw hole 422b and is inserted into the matching hole 46a.

[0056] In this embodiment, the flexible scraper 43 is also detachably mounted to the movable end 422 via mounting bolts 47. This allows for complete replacement of the flexible scraper 43 when worn to the limit, improving practicality. Specifically, in this embodiment, a second chute and a second slider are provided between the inner wall of the assembly channel 422a and the assembly arm 46. The second chute extends in the same direction as the mounting arm 423, and the second slider slides within the second chute.

[0057] It should be noted that in one embodiment, the flexible scraper 43 is made of food-grade silicone. Its surface features a hierarchical micro-nano fiber array, similar to a gecko's foot. This allows it to swing with the axis and automatically conform to the inner wall of the silo. The flexible scraper 43 also has a built-in pressure sensor that monitors and maintains an optimal contact pressure of 50-100N in real time, significantly reducing material residue on the silo wall.

[0058] Micro-nano hierarchical fiber arrays have the following advantages: Bionic adhesion-desorption mechanism: The soles of geckos contact the reactor surface through a micro-nanoscale bristle array. In the stirring system, the micro-nanostructure on the scraper surface can enhance the fit with the silo wall and reduce material residue.

[0059] Dynamic desorption: By adjusting the scraper pressure through the rotation speed, the angle change when the gecko lifts its foot can be simulated, and the switching between adhesion and desorption can be easily realized to avoid the structure from getting stuck.

[0060] Adaptability advantage: It can reduce water film interference in a humid environment. Even in a high-humidity garbage environment, the van der Waals force can still work effectively, ensuring that the scraper is fully integrated with the container wall without slipping.

[0061] Self-cleaning ability: The hydrophobicity and high surface energy difference of micro-nano fibers make pollutants easier to fall off, and the dynamic movement of the scraper can reduce the adhesion of materials on the scraper.

[0062] In addition, it should be understood that when the scraper pressure exceeds 100 N, it indicates that there is a large accumulation of materials in the bin or the adhesion force has increased. At this time, if the pressure is not adjusted, it may lead to equipment overload, increased energy consumption, and wear of the flexible scraper 43. Reducing the rotation speed can reduce the resistance to material propulsion, thereby quickly alleviating the scraper pressure, protecting the equipment, and maintaining the system stability. This is the primary consideration for safe operation.

[0063] The system achieves dynamic balance through the "rotation speed - pressure coupling mode": after briefly reducing the speed and pressure under high pressure, when the pressure returns to the normal range of 50 - 100 N, the rotation speed can be restored, rather than running at a continuous low speed. This intermittent adjustment has a limited impact on the overall mixing efficiency and can effectively prevent material blockage or equipment damage.

[0064] The high - pressure state usually corresponds to scenarios with high material density or high viscosity. At this time, even if the rotation speed is reduced, the inertia of the material itself and the "contraction - expansion" effect of the spiral structure can still maintain a certain mixing effect. Forcibly maintaining a high speed may cause a sharp increase in energy consumption or uneven mixing due to excessive resistance, such as local material accumulation.

[0065] Although briefly reducing the speed may reduce the instantaneous shear force, it avoids shutdown for maintenance or scraper failure caused by excessive pressure, and instead improves the long - term efficiency of the system's continuous operation. The 40% increase in mixing efficiency in the test data already includes the effect of this adjustment mechanism.

[0066] It should be noted that the crushing part 2 can be set as a straight knife, a staggered knife, a stepped knife, a hammer knife, or other forms.

[0067] In one of the embodiments, please refer to Figure 8 and Figure 9 , the processing bin 1 also has an inlet 1e communicating with the crushing chamber 1a. The crushing part 2 includes a cutter barrel 22, a cutter disc 23, two toothed rollers 21, and two groups of cutting knives 24; among them, the two toothed rollers 21 mesh with each other and can rotate relative to each other. The cutter barrel 22 is located on the side of the toothed roller 21 close to the inlet 1e, and its axial direction intersects with the arrangement direction of the inlet 1e and the separation chamber 1b. The cutter disc 23 is arranged in the cutter barrel 22, and its axial direction is the same as that of the cutter barrel 22 and can rotate relative to the cutter barrel 22 around its own axial direction. Each group of cutting knives 24 has a plurality of them, and the plurality of cutting knives 24 are alternately arranged along the axial direction of the cutter barrel 22 between the cutter barrel 22 and the cutter disc 23. Specifically, the two groups of cutting knives 24 are respectively arranged on the cutter barrel 22 and the cutter disc 23 and can bite with each other. Each group of cutting knives 24 has a plurality of them, and the plurality of cutting knives 24 in the same group are arranged at intervals around the axial direction of the cutter disc 23.

[0068] In this embodiment, since the toothed roller 21 (toothed knife type crushing roller) has strong shearing force, tearing force and impact force, it can effectively crush kitchen waste and quickly process soft fibers and hard materials in the mixed waste. The cutter barrel 22 and the cutter disc 23 are located on the feeding side of the toothed roller 21, so that when the kitchen waste enters the crushing chamber 1a from the inlet 1e, it first passes through the cutter barrel 22 and the cutter disc 23, and then through the toothed roller 21. Since the axial direction of the cutter barrel 22 and the cutter disc 23 intersects with the material feeding direction, when the cutter disc 23 rotates relative to the cutter barrel 22, the high-fiber material that has just entered the crushing chamber 1a from the inlet 1e can be sheared by the cutter 24 rotated to the upper part, realizing the primary shearing of the high-fiber material.

[0069] During the downward movement of the high-fiber material after the primary shearing, it can be secondarily sheared by the cutter 24 rotated to the lower part. At the same time, the rotating cutter barrel 22 or cutter disc 23 can also stir the high-fiber material and other waste in the crushing chamber 1a circumferentially, facilitating the homogenization of the waste and enabling the high-fiber material to be sheared multiple times during the circumferential stirring, reducing the size of the high-fiber material. At this time, other waste can carry away the small-sized high-fiber material synchronously during the downward movement, effectively preventing the high-fiber material from winding around the toothed roller 21, improving the cleaning effect, and further ensuring the crushing ability of the toothed roller 21 for kitchen waste.

[0070] It should be understood that based on the flat structure of the cutter 24 itself, and the two groups of cutters 24 can effectively cut the high-fiber material during the relative rotation process and are not easily wound by the high-fiber material. In addition, in one embodiment, one of the cutter barrel 22 or the cutter disc 23 is set to rotate relative to the inner wall of the crushing chamber 1a, and the other is set to be fixed relative to the inner wall of the crushing chamber 1a. In addition, in one embodiment, the blades on the cutter barrel 22 and the cutter disc 23 can be respectively arranged at intervals along their respective axial and circumferential directions and are arranged staggeredly. And the cutter barrel 22 and the cutter disc 23 are set as a frame body with a hollow area to facilitate the passage of waste.

[0071] In one of the embodiments, the axis of the cutter disc 23 is located on the side closer to the inlet 1e of the axis of the cutter barrel 22 and rotates eccentrically relative to the cutter barrel 22; when the cutter disc 23 rotates relative to the cutter barrel 22, each cutter 24 can sequentially engage with a plurality of cutters 24 in the other group.

[0072] In this embodiment, since the size of the high-fiber material that has just entered the crushing chamber 1a from the inlet 1e is relatively large, while the size of the high-fiber material sheared during the downward movement is relatively small, the cutter disc 23 is eccentrically arranged as above, so that the overlap degree of the two groups of cutters 24 is relatively large when the cutter 24 rotates to the upper part, and the overlap degree of the two groups of cutters 24 is relatively small when the cutter 24 rotates to the lower part, thereby reasonably utilizing the rotational driving force and improving the shearing ability for the upper material.

[0073] In one embodiment, the crushing part 2 further includes a jet nozzle 25 which is arranged in the crushing chamber 1a, communicates with an external air source, and is used for jetting air flow towards the cutter 24.

[0074] In this embodiment, high-pressure air flow can be jetted towards the cutter 24 through the jet nozzle 25 to effectively remove the garbage sticking to the cutter 24 and ensure the shearing ability of the cutter 24. Meanwhile, the materials in the crushing chamber 1a can also be agitated by the high-pressure air flow to further improve the homogenization ability.

[0075] It should be noted that in one embodiment, a one-way valve is arranged on the jet nozzle 25, so that the jet nozzle 25 can only discharge air and cannot feed back, avoiding blockage of the jet nozzle 25. Its specific structure and principle are prior arts and will not be elaborated here.

[0076] In one embodiment, the cutter 24 includes a blade, and cutting edges are respectively arranged on both sides of the blade in the relative rotation direction of the cutter head 23 with respect to the cutter barrel 22.

[0077] In this embodiment, cutting edges are arranged on both sides in the rotation direction of the cutter 24, so that the relative rotation direction of the cutter barrel 22 and the cutter head 23 can be adjusted flexibly, improving the practicability. It should be noted that in one embodiment, the cutting edges are arranged in a herringbone edge shape, and the edge angle is optimized by fluid mechanics, which can efficiently grasp and cut various high-fiber substances.

[0078] It should be noted that in one embodiment, the drive shafts of the toothed rollers 21 and the cutter head 23 can be correspondingly extended outside the crushing chamber 1a and driven by manpower or wind power. Or the relative rotation of the toothed rollers 21 and the cutter head 23 can be realized in other forms.

[0079] In one embodiment, the crushing part 2 further includes a crushing drive member 26 which is installed on the processing bin 1, connects at least one toothed roller 21, is used for driving the two toothed rollers 21 to rotate relatively, and connects at least one of the cutter head 23 and the cutter barrel 22, and is used for driving the cutter head 23 to rotate around its own axis relative to the cutter barrel 22.

[0080] In this embodiment, the toothed rollers 21 and the cutter head 23 are driven by the crushing drive member 26, which is convenient for realizing automation. It should be noted that it can be directly driven by a rotating motor, or the rotation can be realized through the cooperation of a hydraulic rod, an electric push rod and a connecting rod. Specifically, in this solution, the crushing drive member 26 is respectively provided with a first motor, a second motor and a third motor, and corresponding transmission gears are arranged to independently drive the toothed rollers 21, the cutter barrel 22 and the cutter head 23 to rotate. Its specific structure and transmission principle are prior arts and will not be elaborated here.

[0081] In one embodiment, the crushing part 2 further includes a torque sensor which is arranged on the toothed roller 21 and is used for monitoring the torque of the toothed roller 21.

[0082] In this embodiment, when the torque sensor monitors that the torque of the toothed roller 21 reaches the threshold value, it is determined that the load of the toothed roller 21 is abnormal. At this time, it is necessary to stop the machine for maintenance to avoid damaging the toothed roller 21. It should be noted that the specific structure and principle of the torque sensor are prior art and will not be elaborated here.

[0083] In one of the embodiments, please refer to Figure 10 and Figure 11 , the toothed roller 21 includes a roller shaft 211 and a plurality of crushing teeth 212. The roller shaft 211 is rotatably installed in the crushing chamber 1a. The plurality of crushing teeth 212 are installed on the roller shaft 211 and are arranged at intervals along the axial direction of the roller shaft 211, and a gap 212a is formed between two adjacent crushing teeth 212; the crushing part 2 further includes a hook knife 27. The hook knife 27 is installed in the crushing chamber 1a and has a material-hooking section 271 extending into the gap 212a. The material-hooking section 271 is arranged in a semi-circular arc shape, and its arc opening faces the roller shaft 211.

[0084] In this embodiment, on the one hand, the high-fiber garbage wound around the roller shaft 211 can be directly hooked off by the hook knife 27; on the other hand, the hook knife 27 can also form a shearing action with the crushing teeth 212 to gradually cut and strip the remaining fiber substances, effectively avoiding the winding of the fiber substances on the toothed roller 21. Specifically, the hook knife 27 is integrally cast from high manganese steel. A plurality of hook knives 27 are provided corresponding to the plurality of crushing teeth 212. The axial distance between the hook knife 27 and the adjacent crushing tooth 212 is designed to be 8-12 mm according to the characteristics of common fiber garbage.

[0085] It should be noted that in one embodiment, the crushing teeth 212 are made of SKD-11 (high-carbon high-chromium alloy tool steel) alloy steel, and the material is evenly crushed to an ideal particle size of 5-8 mm at a variable frequency speed of 25-35 rpm, creating conditions for subsequent processing.

[0086] In one of the embodiments, the hook knife 27 can rotate relative to the inner wall of the crushing chamber 1a and adjust the angle between the material-hooking section 271 and the horizontal direction when rotating; the crushing part 2 further includes an adjusting member. The adjusting member is installed in the crushing chamber 1a and is connected to the hook knife 27 for driving the hook knife 27 to rotate relative to the crushing chamber 1a.

[0087] In this embodiment, it should be understood that the thickness direction of the hook knife 27 is the same as the axial direction of the crushing teeth 212, and the angle between the hook knife 27 and the horizontal direction can be adjusted. Thus, the angle between the hook knife 27 and the horizontal can be adjusted according to the characteristics of different garbage to ensure the best peeling effect.

[0088] Specifically, in one embodiment, the hook knife 27 has an angle adjustment scale of every 5°. The reference 0° position corresponds to the center line of the comb teeth and the perpendicular line of the tool shaft. The winding force and the garbage composition are analyzed through a multi-dimensional force sensor and near-infrared spectroscopy. Based on the BP neural network (backpropagation neural network), the optimal angle is predicted, and the installation angle of the comb teeth is accurately adjusted within a range of 15° according to different garbage characteristics through a hydraulic servo system to ensure the best peeling effect.

[0089] It should be noted that the hook knife 27 can be directly driven by a motor to rotate, or it can also be rotated through the cooperation of an electric push rod, a hydraulic rod with gears and racks.

[0090] In one embodiment, the adjusting member includes a mounting base 28, a mounting shaft and an adjusting motor. The mounting base 28 is connected to the mounting shaft and is rotatably mounted in the crushing chamber 1a via the mounting shaft. A part of the mounting shaft extends out of the crushing chamber 1a. The output shaft of the adjusting motor is connected to the mounting shaft and drives the mounting shaft to rotate; the hook knife 27 is detachably mounted on the mounting base 28.

[0091] In this embodiment, the mounting base 28 is directly driven by a motor to rotate, thereby driving the hook knife 27 to rotate. The motor is placed outside the crushing chamber 1a to extend its service life and facilitate replacement and maintenance. At the same time, the hook knife 27 is detachably connected to the mounting base 28 for easy replacement.

[0092] It should be noted that the hook knife 27 and the mounting base 28 can be detachably connected by bolts, pins or buckles. Specifically, in one embodiment, the hook knife 27 and the mounting base 28 are detachably connected by bolts and screw holes.

[0093] In addition, in one embodiment, an infrared detection unit is provided at the inlet 1e to preliminarily analyze the garbage composition. Its specific structure and working principle are prior art and will not be elaborated here.

[0094] It should be noted that the filtering part 3 can be set as a filter plate, a filter element or other forms.

[0095] In one embodiment, the treatment chamber 1 further has an oil chamber 1d. The oil chamber 1d communicates with the separation chamber 1b and is located below the separation chamber 1b; the filtering part 3 includes a filter screen, and the filter screen is arranged between the separation chamber 1b and the oil chamber 1d.

[0096] In this embodiment, the oil is transported to the oil chamber 1d through the filter screen, and the filtered solid phase enters the microorganism chamber 1c from the separation chamber 1b. The structure is simple and the cost is low.

[0097] It should be noted that in one embodiment, a liquid level sensor is provided in the oil chamber 1d, and a pipeline and a pump body communicating with the oil chamber 1d are correspondingly provided. When the detected oil layer thickness exceeds 3 cm, the pump body is automatically started, and the waste oil recovery rate can reach more than 95%, which is used as a raw material for biodiesel. The aqueous phase components then enter the subsequent treatment unit, and the demulsifier automatic dosing device equipped in the system can automatically intervene in the treatment when the detected emulsified layer is greater than 1 cm to ensure the oil-water separation effect.

[0098] In some embodiments, the crushing chamber 1a, the separation chamber 1b, and the microorganism chamber 1c are arranged in sequence from top to bottom. The crushing chamber 1a and the microorganism chamber 1c are respectively located at both ends of the separation chamber 1b; the kitchen waste treatment system further includes a feeding auger 6, and the feeding auger 6 is arranged in the separation chamber 1b and is used to drive the material to move towards the microorganism chamber 1c.

[0099] In this embodiment, during the process of the feeding auger 6 driving the material into the microorganism chamber 1c, it can further stir the solid-phase material to further improve the material uniformity. Specifically, in this embodiment, the feeding auger 6 is driven to rotate by an external motor, and the filter screen is spacedly coated on the outer periphery of the feeding auger 6. In addition, the feeding auger 6 also adopts a variable-diameter spiral design, and the spiral diameter periodically changes within the range of 80 - 120 mm, and efficient dehydration is achieved under the working pressure of 0.8 - 1.2 MPa.

[0100] It should be noted that the tail gas treatment unit 5 can be provided with a spray tower, a combustion tower or other tail gas treatment units.

[0101] In one of the embodiments, the tail gas treatment unit 5 adopts a multi-stage photocatalytic reaction tower for deep purification treatment. Specifically, the reaction tower uses an α-Bi2O3 (α-type bismuth oxide) / g-C3N4 (graphite-phase carbon nitride) composite catalyst, the coating thickness is 50 μm, and it is combined with a UV LED (ultraviolet light-emitting diode) array with a wavelength of 365 nm and an intensity of 80 μW / cm². Under the condition of an empty tower flow rate of 0.3 m / s, it is ensured that the residence time of the waste gas is not less than 30 seconds. After treatment, the concentration of NH3 (ammonia) in the waste gas ≤ 1.5 mg / m³, and the concentration of H2S (hydrogen sulfide) ≤ 0.06 mg / m³, fully meeting the strict emission standards. The catalyst has excellent stability, and it can maintain a stable treatment effect by being replaced once every 2000 hours.

[0102] The entire system is uniformly managed by an intelligent control system, and the operating parameters of each link are collected and adjusted in real time through an embedded monitoring module, including key indicators such as maintaining the dissolved oxygen concentration at 2.5 - 3.5 mg / L. The system supports 4G remote monitoring and diagnosis functions, greatly improving the maintainability and operation efficiency of the equipment. All functional modules adopt a standardized interface design, and the maintenance time of key equipment is controlled within 15 minutes. The modular design enables the system to flexibly adjust the configuration according to different treatment requirements.

[0103] In addition, an aerobic digestion system with constant temperature control is adopted in the microbial chamber 1c, and the temperature is precisely controlled within the range of 35 - 45°C with an accuracy of ±2°C. The system uses a patented compound bacterial agent formula, which is a mixture of Bacillus licheniformis subsp. CICC 24356, Bacillus subtilis CCTCC M2017387 and EM bacteria in proportion. Among them, EM bacteria are mixed bacteria, generally including beneficial bacteria such as photosynthetic bacteria, yeasts, and lactic acid bacteria. And the flexible scraper 43 and the inner wall of the microbial chamber 1c can be set to maintain a constant contact pressure of 70 ± 5N, ensuring full mixing of the materials and no residue on the bin wall. Under the action of this system, the kitchen waste can reach a degradation rate of more than 95% within 12 hours, and the pH value is automatically stabilized within the range of 3.85 - 4.46 during the treatment process.

[0104] This system shows significant advantages in practical applications: the reduction rate is as high as 95%, far exceeding the 80% upper limit of traditional technologies; the unit treatment energy consumption is only 25 - 30 kW·h / ton, which is 60% lower than that of incineration technology; the resource products are rich, and for every 1 kg of kitchen waste processed, 400 g of organic soil, 150 g of concentrated liquid and 40 g of biodiesel raw materials can be obtained. Moreover, the system occupies a relatively small area and the operating noise is lower than 65 decibels, making it suitable for collective catering places such as school canteens and catering enterprises.

[0105] It should be noted that in terms of garbage treatment efficiency, through the system main body and the compound bacterial agent formula, the degradation time of kitchen waste can be significantly shortened from 20 - 30 days required by traditional composting technology to within 12 hours, and the reduction rate is as high as 95%. And the stirring part 4 is combined with a gradient rotation speed cycle of "5 → 15 → 5 rpm", which improves the mixing uniformity of the materials by 60% and creates the best reaction environment for microorganisms. At the same time, the synergistic effect of Bacillus licheniformis subsp. and Bacillus subtilis in the compound bacterial agent realizes the synchronous and efficient degradation of complex organic substances such as fat, protein and cellulose.

[0106] In terms of energy consumption and carbon emissions, it can accurately adjust the dissolved oxygen concentration within the optimal range of 2.5 - 3.5 mg / L with the help of an intelligent control system to avoid energy waste; in addition, the photocatalytic purification module adopts a high-efficiency UV LED array, and the energy consumption is 60% lower than that of traditional ultraviolet lamps. The unit treatment energy consumption of this system is only 25 - 30 kW·h / ton, which is more than 60% lower than that of traditional incineration technology.

[0107] In terms of resource utilization, the system realizes the full-quantification conversion of kitchen waste. For every 1 kg of garbage processed, 400 g of organic soil meeting the NY / T3442 standard, 150 g of concentrated nutrient solution and 40 g of biodiesel raw materials can be produced, and the resource conversion rate reaches 97.5%. And it can increase the waste oil recovery rate to more than 95%, and when the microbial degradation is set with constant temperature control, it can increase the organic matter conversion efficiency by 35%.

[0108] In terms of environmental protection performance, the system can solve the problem of secondary pollution in food waste treatment through the photocatalysis-microbial coupling technology. The multi-stage photocatalytic reaction tower uses a -Bi2O3 / g-C3N4 composite catalyst, enabling the removal rates of NH3 and H2S in the waste gas to reach over 90%, and the emission concentrations are controlled below 1.5 mg / m³ and 0.06 mg / m³ respectively. Meanwhile, the COD value of the treated residue drops to 50 mg / L.

[0109] In terms of equipment applicability, the modular design of this system reduces its floor area by 90% compared with traditional anaerobic fermentation facilities. Only 5 square meters of space is required for the unit treatment capacity, meeting the installation requirements of collective dining places. The design of anti-winding blades enables the equipment to stably process various types of high-fiber waste, reducing the failure rate by 80%. And it can support 4G remote monitoring with the help of an intelligent control system, shortening the equipment maintenance response time to 1 / 3 of the traditional method and greatly improving the operation efficiency.

[0110] For a better understanding of the present invention, the following is combined with Figures 1 to 11 to elaborate on the technical solution of the present invention in detail: In this solution, through the relative rotation of the cutter head 23 and the cutter barrel 22, the high-fiber materials entering the crushing chamber 1a can be circularly sheared to reduce the size of the high-fiber materials and prevent the high-fiber materials from winding around the toothed roller 21. And the relative rotation of the cutter head 23 can stir the food waste in the crushing chamber 1a to facilitate homogenization. And the hooked knife 27 can timely clean the high-fiber winding.

[0111] The preset interval of the contact pressure between the flexible scraper 43 and the bin wall is set at 50 - 100 N. When it is detected that the pressure of the flexible scraper 43 deviates from the preset interval, the pressure is adjusted through the rotation speed-pressure coupling mode. Specifically, in the high-pressure state, the contact pressure is greater than 100 N, and the rotation speed of the rotating shaft 412 is reduced to reduce the resistance of material propulsion, thereby reducing the contact pressure between the flexible scraper 43 and the bin wall. In the low-pressure state, the contact pressure is less than 50 N, and the rotation speed of the stirring shaft is increased to enhance the adhesion of the scraper to the bin wall by using centrifugal force and increase the contact pressure. Thus, in the high-pressure state, the rotation speed of the stirring shaft is reduced to reduce the resistance of material propulsion; in the low-pressure state, the rotation speed is increased to enhance the adhesion of the scraper by using centrifugal force.

[0112] The specific implementation manners of the present invention described above do not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and deformations made according to the technical concept of the present invention should be included within the protection scope of the claims of the present invention.

Claims

1. A food waste treatment system, characterized in that, Comprising: A processing chamber having a crushing chamber, a separation chamber and a microorganism chamber that are sequentially connected; A crushing part disposed in the crushing chamber for crushing materials; A filtering part disposed in the separation chamber for filtering out oil; A stirring part including a stirring member, a connecting arm and a flexible scraper. The stirring member is rotatably disposed in the microorganism chamber. The connecting arm has a fixed end and a movable end. The fixed end is disposed on the stirring member. The distance between the movable end and the fixed end is adjustable in a direction perpendicular to the rotation axis of the stirring member and can be maintained at the adjusted position. The flexible scraper is disposed on the movable end and presses against the inner wall of the microorganism chamber; And An exhaust gas treatment part communicating with the microorganism chamber for purifying exhaust gas.

2. The food waste treatment system according to claim 1, characterized in that The processing chamber further has an oil chamber that communicates with the separation chamber and is located below the separation chamber; The filtering part includes a filter screen disposed between the separation chamber and the oil chamber.

3. The food waste treatment system according to claim 1, characterized in that, The crushing chamber, the separation chamber and the microorganism chamber are arranged in sequence from top to bottom. The crushing chamber and the microorganism chamber are respectively located at both ends of the separation chamber; The kitchen waste treatment system further includes a feeding auger disposed in the separation chamber for driving materials to move towards the microorganism chamber.

4. The food waste treatment system according to claim 1, wherein The connecting arm includes a mounting arm, a telescopic arm and a locking structure. One end of the mounting arm is mounted on the stirring member. The telescopic arm is mounted on the mounting arm and can move relative to the mounting arm along its extending direction. The locking structure connects the mounting arm and the telescopic arm and can lock the telescopic arm to the mounting arm and can unlock the telescopic arm; The fixed end is located at one end of the mounting arm connecting the stirring member, and the movable end is located at one end of the telescopic arm away from the fixed end.

5. The food waste treatment system according to claim 4, wherein, The mounting arm is provided with a plurality of mounting holes that are spaced apart along the extending direction of the mounting arm. The telescopic arm is provided with a locking screw hole that can selectively communicate with the mounting holes; The locking structure includes a locking bolt that is threadedly connected to the telescopic arm through the locking screw hole and can be inserted into the mounting hole communicating with the locking screw hole.

6. The food waste treatment system according to claim 4, characterized in that, The stirring part further includes an elastic member that connects the mounting arm and the telescopic arm for driving the movable end to move in a direction away from the fixed end.

7. The food waste treatment system according to claim 6, wherein The telescopic arm has a mounting channel. The inner wall of the mounting channel is provided with an annular protrusion. The mounting arm has a guiding arm that extends into the mounting channel. The guiding arm slidably passes through the inside of the annular protrusion; The elastic member includes a compression spring that is sleeved on the guiding arm and has one end pressing against the annular protrusion.

8. The food waste treatment system according to claim 1, wherein, The processing chamber further has an inlet communicating with the crushing chamber. The crushing part includes a cutter barrel, a cutter disc, two toothed rollers and two groups of cutting knives; Among them, the two toothed rollers mesh with each other and can rotate relative to each other. The cutter barrel is located on the side of the toothed roller close to the inlet, and its axis intersects the arrangement direction of the inlet and the separation chamber. The cutter disc is arranged in the cutter barrel, and its axis is the same as the axis of the cutter barrel and can rotate relative to the cutter barrel around its own axis. A plurality of the cutting knives in each group are provided, and the plurality of cutting knives are alternately arranged along the axis of the cutter barrel between the cutter barrel and the cutter disc.

9. The food waste treatment system according to claim 8, characterized in that, The axis of the cutter disc is located on the side of the axis of the cutter barrel close to the inlet and rotates eccentrically relative to the cutter barrel.

10. The food waste treatment system according to claim 8, wherein The toothed roller includes a roller shaft and a plurality of crushing teeth. The roller shaft is rotatably installed in the crushing chamber. The plurality of crushing teeth are installed on the roller shaft and are arranged at intervals along the axis of the roller shaft, and a gap is formed between two adjacent crushing teeth. The crushing part further includes a hook knife. The hook knife is installed in the crushing chamber and has a hook material section extending into the gap. The hook material section is arranged in a semi-circular shape, and its arc opening faces the roller shaft.

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