On-site treatment device for kitchen waste and its usage method

Abstract

This invention provides an in-situ food waste treatment device and its usage method, relating to the field of food waste treatment technology. The in-situ food waste treatment device includes a casing, a crushing mechanism, a conveying mechanism, a stirring and cutting mechanism, a centrifugal mechanism, a crushing hopper, a filter screen, a water-oil separation mechanism, a drying mechanism, a granulation mechanism, a control mechanism, a solid waste collection hopper, and a liquid waste collection hopper. The in-situ food waste treatment device provided by this invention is applied to the in-situ treatment of food waste, and has the technical effect of efficient processing and precise control of the cutting particles.

Description

Technical Field

[0001] This invention relates to the field of food waste treatment technology, and in particular to an in-situ food waste treatment device and its usage method. Background Technology

[0002] Food waste refers to the general term for catering waste and kitchen waste, which is an important component of organic waste in urban solid waste.

[0003] Food waste generally consists of scraps, leftovers, expired food, and other waste generated during the processing and consumption of food in restaurants, hotels, canteens of enterprises and institutions, food processing plants, and households.

[0004] Food waste is rich in components and has a high water content. Leachate from it seeps into the ground and flows into surface runoff, polluting water sources used by residents. Food waste is extremely perishable, especially in high-temperature environments. Accumulated and rotting food waste produces a foul odor, causing serious environmental pollution. Food waste mainly consists of protein, starch, and fat, and is rich in various trace elements, making it a highly nutritious residue. It is a breeding ground for microorganisms, attracting flies and spreading diseases. If not treated promptly or properly, it not only causes air and water pollution but also seriously disrupts people's normal lives, posing a significant health hazard.

[0005] Food waste, a major component of urban waste, is primarily concentrated in residential areas, restaurants, and canteens of various enterprises and institutions. While food waste treatment technologies are rapidly evolving both domestically and internationally, regardless of the method used, food waste must be collected and transported to a fixed location before further processing for resource recovery. This not only increases the difficulty of collection and transportation costs but also increases the risk of leakage and environmental pollution during transport, and occupies a significant amount of land.

[0006] Existing on-site food waste treatment devices include several mechanisms for crushing, filtering and washing, and then compact the treated food waste for further fermentation and other processes.

[0007] The above-mentioned method of treating kitchen waste is too crude, resulting in large particles of kitchen waste that do not meet the requirements for composting. The method is also too simplistic and cannot be tailored to the required degree of crushing of the kitchen waste raw materials.

[0008] Therefore, there is an urgent need for an improved device and method to address the aforementioned technical problems. Summary of the Invention

[0009] In view of this, the purpose of the present invention is to provide an on-site treatment device for kitchen waste and its method of use, so as to improve the above-mentioned problems.

[0010] This invention provides an in-situ food waste treatment device, comprising: a machine casing, a crushing mechanism, a conveying mechanism, a stirring and cutting mechanism, a centrifugal mechanism, a crushing hopper, a filter screen, a water-oil separation mechanism, a drying mechanism, a granulation mechanism, a control mechanism, a solid waste collection hopper, and a liquid waste collection hopper; wherein, the crushing mechanism is disposed on the top of the machine casing; the control mechanism is signal-connected to the crushing mechanism and controls the crushing mechanism to crush the food waste; the conveying mechanism is signal-connected to the control mechanism and is disposed between the crushing mechanism and the centrifugal mechanism for conveying the crushed food waste to the centrifugal mechanism; the centrifugal mechanism includes a first drive motor. The centrifuge comprises a centrifuge, a first drive shaft, and a centrifuge drum. A first drive motor drives the centrifuge drum to rotate along its axis via the first drive shaft. The centrifuge drum wall has a passageway for food waste. The mixing and cutting mechanism includes a second drive motor, a second drive shaft, and cutting tools. The first drive shaft and the second drive shaft are coaxially arranged. The cutting tools are disposed inside the centrifuge drum. The second drive motor drives the cutting tools to rotate within the centrifuge drum along the axis of the second drive shaft via the second drive shaft. The rotation direction of the cutting tools is opposite to the rotation direction of the centrifuge drum. A pulverizing hopper is fitted outside the centrifuge mechanism and the mixing and cutting mechanism to collect food waste passing through the passageway. The filter screen is located at the bottom of the crushing hopper, receiving the kitchen waste falling from it and conveying it to the solid waste collection hopper. The filter screen has a mesh for separating the kitchen waste into solid and liquid phases. The solid waste collection hopper is located between the filter screen and the drying mechanism to hold the solid kitchen waste. The liquid waste collection hopper is located below the filter screen to collect the liquid kitchen waste. The drying mechanism is located between the solid waste collection hopper and the granulation mechanism to dry the solid kitchen waste. The water-oil separation mechanism is located inside the liquid waste collection hopper to separate water and oil from the liquid kitchen waste. The centrifuge drum... The centrifuge includes an inner cylinder, an outer cylinder, and an adjusting assembly. The inner cylinder and the outer cylinder are concentrically arranged and closely connected to each other. A first drive motor is connected to both the inner cylinder and the outer cylinder, and is used to drive the inner cylinder and the outer cylinder to rotate along their concentric axes. The inner cylinder has a first discharge hole, and a first cutting blade is provided at the edge of the first discharge hole. The first cutting blade protrudes inward toward the inner side of the inner cylinder, and the tip of the first cutting blade faces the rotation direction of the centrifuge cylinder. A second discharge hole is provided on the outer cylinder at a position corresponding to the first discharge hole. A second cutting blade is provided at the edge of the second discharge hole, and the second cutting blade protrudes inward toward the inner side of the outer cylinder, and the tip of the second cutting blade faces the rotation direction of the centrifuge cylinder.The second cutting blade is inserted into the first discharge hole.

[0011] The passageway for food waste is formed at the overlap of the first discharge hole and the second discharge hole; the adjustment component is connected to the inner cylinder and the outer cylinder respectively, and is used to change the size of the passageway for food waste and change the position of the second cutting blade relative to the first cutting blade by adjusting the relative rotation angle of the inner cylinder and the outer cylinder; when the adjustment component adjusts the relative rotation angle of the inner cylinder and the outer cylinder, the first discharge hole moves relative to the second discharge hole, the passageway for food waste changes, and the second cutting blade moves in the first discharge hole, changing the relative position of the first cutting blade and the second cutting blade.

[0012] Preferably, the adjusting mechanism includes a screw, a nut, and a slide rail. The slide rail is formed on the outer cylinder, the screw is inserted into the slide rail, one end of the screw is connected to the inner cylinder, and the other end extends out of the slide rail of the outer cylinder. The nut is screwed in from the other end of the screw to fix the position of the screw on the slide rail.

[0013] Preferably, the adjusting mechanism includes a hydraulic cylinder, which includes a cylinder body and a hydraulic rod. The cylinder body is connected to the outer cylinder, and the hydraulic rod is connected to the inner cylinder. The hydraulic cylinder adjusts the relative rotation angle between the inner cylinder and the outer cylinder by extending and retracting the hydraulic rod.

[0014] Preferably, the centrifugal mechanism includes a support frame and a ring power supply. The hydraulic cylinder is equipped with a power-collecting brush, which is located at the bottom of the outer cylinder. The ring power supply is located on the support frame. When the outer cylinder rotates, the power-collecting brush of the hydraulic cylinder is electrically connected to the ring power supply.

[0015] Preferably, the in-situ food waste treatment device provided by the present invention further includes a spraying mechanism, which is disposed on the top of the centrifugal mechanism, and the spraying direction of the spraying mechanism is towards the top of the inner cylinder.

[0016] Preferably, the centrifuge tube is funnel-shaped, and the diameter of the top of the centrifuge tube is larger than the diameter of the bottom of the centrifuge tube.

[0017] Preferably, the crushing mechanism includes at least one pair of relatively moving crushing rollers, and the crushing rollers are provided with crushing blades for crushing kitchen waste.

[0018] Preferably, the in-situ food waste treatment device provided by the present invention further includes a water spraying mechanism, which includes a water tank, a water pump and a water spray nozzle. The water pump is connected to the water tank and the water spray nozzle and is used to pump water from the water tank to the water spray nozzle. The water spray nozzle is located on the side of the conveying mechanism near the crushing mechanism, and the water spraying direction of the water spray nozzle is towards the side of the conveying mechanism near the centrifugal mechanism.

[0019] Preferably, the in-situ food waste treatment device provided by the present invention further includes a heating mechanism, which is disposed in the water tank.

[0020] Preferably, the bottom of the crushing hopper is funnel-shaped.

[0021] Preferably, the outer casing of the machine body is provided with a top cover, which slides to cover the crushing mechanism.

[0022] Preferably, the crushing mechanism is provided with a material storage bin at the top, the material storage bin being funnel-shaped and used to centrally store kitchen waste placed on the crushing mechanism.

[0023] Preferably, the in-situ treatment device for kitchen waste provided by the present invention further includes a photolysis mechanism, which is disposed below the top cover. The photolysis mechanism is used to decompose the waste gas by using strong ultraviolet light with a short wavelength of 185nm, breaking the molecular chain, and at the same time generating a large amount of ozone to oxidize the waste gas.

[0024] Preferably, the on-site treatment device for kitchen waste provided by the present invention further includes an ultraviolet disinfection lamp, which is disposed below the spray device and the irradiation direction of the ultraviolet disinfection lamp is towards the centrifuge mechanism.

[0025] Preferably, the filter screen includes a vibrating component and a screen mesh, wherein the vibrating component is connected to the screen mesh.

[0026] Preferably, the water-oil separation mechanism is located within the liquid phase waste collection chamber. The water-oil separation mechanism includes a buoy, an identification sensor, a drive unit, a suction nozzle, a suction pipe, an electrically controlled valve, a suction pump, and an oil storage tank. The buoy is made of resin material and a counterweight, with a density between that of water and edible oil, and is used to indicate the water-oil separation position. The identification sensor is connected to the drive unit and is used to identify the buoy's position. The suction nozzle is one end of the suction pipe, and the other end of the suction pipe is connected to the oil storage tank. The suction pump is located on the suction pipe and is used to draw oil from the suction nozzle into the oil storage tank. The drive unit is connected to the sensor and is used to drive the suction nozzle to the location of the buoy. The electrically controlled valve, the sensor, the drive unit, and the suction pump are all electrically connected to the control mechanism. The electrically controlled valve is located on the suction nozzle and is used to control the opening or closing of the suction nozzle.

[0027] Preferably, the granulation mechanism includes a feed inlet, an extrusion chamber, an extrusion screw, a third drive motor, a heating component, an extrusion port, and a cutting component; the feed inlet is connected to the extrusion chamber, the third drive motor drives the extrusion screw to rotate within the extrusion chamber to extrude the solid food waste; the heating component is disposed within the extrusion chamber for heating the extrusion chamber; the extrusion port is disposed at one end of the extrusion chamber, and the cutting component is disposed at the extrusion port for cutting the extruded solid food waste.

[0028] Preferably, the conveying mechanism is a conveyor belt.

[0029] Preferably, the solid waste collection bin is equipped with a microbial culture bin for storing microbial cultures, and the microbial culture bin is connected to the solid waste collection bin.

[0030] Secondly, the invention provides a method for using an in-situ food waste treatment device. The method, using the in-situ food waste treatment device described in the above technical solution, includes: starting the in-situ food waste treatment device and pouring the food waste into a crushing mechanism; a conveying mechanism conveying the crushed food waste into a centrifugal mechanism; adjusting the relative rotation angle between the inner and outer cylinders to adjust the size of the passageway for the food waste; driving the centrifugal mechanism and the stirring and cutting mechanism to rotate, centrifuging and cutting the food waste; a crushing bin collecting the centrifuged and cut food waste and sending it to a filter screen for filtration; a liquid-phase waste collection bin holding the liquid-phase food waste, and a solid-phase waste collection bin containing the solid-phase food waste; a water-oil separation mechanism operating to separate the water and oil entering the liquid-phase waste collection bin; a drying mechanism operating to dry the solid-phase food waste entering the solid-phase waste collection bin; and a granulation mechanism extruding and granulating the solid-phase food waste.

[0031] The embodiments of the present invention bring the following beneficial effects: The present invention provides an in-situ treatment device for kitchen waste, which includes a machine shell, a crushing mechanism, a conveying mechanism, a stirring and cutting mechanism, a centrifugal mechanism, a crushing bin, a filter screen, a water-oil separation mechanism, a drying mechanism, a granulation mechanism, a control mechanism, a solid phase waste collection bin, and a liquid phase waste collection bin.

[0032] The crushing mechanism is located on the top of the machine casing; the control mechanism is signal-connected to the crushing mechanism, controlling the crushing mechanism to crush the food waste; the conveying mechanism is signal-connected to the control mechanism, and is located between the crushing mechanism and the centrifugal mechanism, used to convey the crushed food waste to the centrifugal mechanism; the centrifugal mechanism includes a first drive motor, a first transmission shaft, and a centrifugal drum, the first drive motor drives the centrifugal drum to rotate along the axis of the centrifugal drum through the first transmission shaft; the wall of the centrifugal drum has a passageway for food waste; the stirring and cutting mechanism includes a second drive motor, a second transmission shaft, and cutting tools; the first transmission shaft and the second transmission shaft are coaxially arranged, and the cutting tools are located inside the centrifugal drum. Two drive motors drive the cutting blades to rotate along the axis of the second drive shaft inside the centrifuge cylinder. A pulverizing hopper is fitted outside the centrifugal mechanism and the mixing and cutting mechanism to collect kitchen waste that passes through the accessible passageway. A filter screen is located at the bottom of the pulverizing hopper to receive kitchen waste falling from it and convey it to the solid waste collection hopper. The filter screen has a mesh to separate the kitchen waste into solid and liquid phases. The solid waste collection hopper is located between the filter screen and the drying mechanism to hold the solid phase kitchen waste. The liquid waste collection hopper is located below the filter screen to collect the liquid phase kitchen waste. The drying mechanism is located between the solid waste collection hopper and the centrifugal mechanism. Between the granulation unit, a dryer is used for solid-phase kitchen waste; a water-oil separation unit is installed in the liquid-phase waste collection chamber to separate water and oil from the liquid-phase kitchen waste; the centrifuge cylinder includes an inner cylinder, an outer cylinder, and an adjustment assembly, with the inner and outer cylinders concentrically arranged and closely connected; a first drive motor is connected to the inner and outer cylinders respectively, used to drive the inner and outer cylinders to rotate along the concentric axis of the inner and outer cylinders; the inner cylinder has a first discharge hole, and a first cutting blade is provided at the edge of the first discharge hole, the first cutting blade protruding towards the inner side of the inner cylinder, and the blade tip of the first cutting blade facing the rotation direction of the centrifuge cylinder; a second discharge hole is provided on the outer cylinder at a position corresponding to the first discharge hole; a second cutting blade is provided at the edge of the second discharge hole, the first... The two cutting blades protrude towards the inner side of the outer cylinder, with the blade tip facing the direction of centrifuge cylinder rotation. The second cutting blade is inserted into the first discharge hole. A passageway for food waste is formed in the overlapping portion of the first and second discharge holes. An adjusting component is connected to both the inner and outer cylinders to change the size of the passageway and the position of the second cutting blade relative to the first cutting blade by adjusting the relative rotation angle between the inner and outer cylinders. When the adjusting component adjusts the relative rotation angle between the inner and outer cylinders, the first discharge hole moves relative to the second discharge hole, the passageway for food waste changes, and the second cutting blade moves within the first discharge hole, changing the relative position of the first and second cutting blades.

[0033] The in-situ food waste treatment device provided by this invention requires the operator to first pour the food waste raw material into the crushing mechanism. The crushing mechanism crushes and pulverizes the food waste raw material, and then conveys it to the centrifugal mechanism via the conveying mechanism. The control mechanism controls the operation of the centrifugal mechanism, and the centrifugal drum of the centrifugal mechanism rotates around its own axis. The control mechanism also controls the stirring and cutting mechanism to rotate in the opposite direction to the rotation direction of the centrifugal drum along its own axis. At this time, the food waste located in the centrifugal drum is subjected to the centrifugal force of the centrifugal mechanism, the support force of the centrifugal drum wall, the friction force of the centrifugal drum wall, and possibly the shearing force of the cutting blades. Under the action of centrifugal force, the water and some small particles in the food waste enter the crushing hopper through the food waste passage on the centrifugal drum. Under the support force and friction force of the centrifugal drum wall, the food waste generates relative movement or compression with the inner drum. Under the action of the first cutting blade on the inner drum or the second cutting blade on the outer drum, the food waste is cut into more small particles, which enter the crushing hopper through the food waste passage.

[0034] Similarly, under the shearing force of the cutting blades, food waste will be cut into more small particles, which will then enter the crushing hopper through the food waste passage.

[0035] As can be seen from this solution, this solution utilizes a rotating cutting tool inside a closed separation cylinder that rotates in the opposite direction to the cylinder's rotation. This tool creates relative motion with the food waste moving with the cylinder, resulting in a faster relative speed, which is beneficial for quickly and powerfully cutting the food waste.

[0036] In addition, this solution fully considers the centrifugal force, friction force and support force on the food waste, and uses the first and second cutting blades on the separation cylinder to finely cut the food waste into smaller particles, which are easier to compost later.

[0037] Furthermore, the in-situ food waste treatment device provided by this invention can adjust the relative position of the inner and outer cylinders by adjusting the components, thereby adjusting the position of the first discharge hole of the inner cylinder relative to the second discharge hole of the outer cylinder. This allows for adjustment of the size of the passageway for food waste formed in the overlapping portion of the first and second discharge holes. In this way, the filtration accuracy of food waste within the centrifuge drum can be precisely controlled.

[0038] Food waste particles, oil, and moisture enter the crushing hopper via a centrifugal and agitating cutting mechanism. Under gravity, they fall onto a filter screen, while the moisture and oil drip down into a liquid waste collection hopper located below the filter screen for oil-liquid separation. The food waste particles, after passing through the filter screen, enter the solid waste collection hopper for storage.

[0039] The drying unit connected to the solid waste collection bin dries the solid kitchen waste. After drying, the kitchen waste enters the granulation unit for granulation to produce granular raw materials that can be used to make fertilizer.

[0040] The in-situ food waste treatment device provided by this invention can achieve precise control over the treatment of food waste. Its innovation lies in its ability to operate under multiple conditions. For example, when the adjustment component is used to minimize the relative rotation angle between the outer and inner cylinders, such as when the second and first cutting blades are stacked, the cutting ability for food waste in the separation cylinder is insufficient, and the passageway for food waste is at its maximum, making it more suitable for coarse and rapid processing of food waste. Alternatively, when the adjustment component is used to adjust the relative rotation angle between the outer and inner cylinders to an intermediate value between the maximum and minimum angles, the second and first cutting blades separate, enhancing the cutting ability for food waste in the separation cylinder, and narrowing the passageway for food waste, making it suitable for relatively refined processing of food waste. Finally, when the adjustment component is used to adjust the relative rotation angle between the outer and inner cylinders to a value between the maximum angles, the separation distance between the second and first cutting blades is at its maximum, enhancing the cutting ability for food waste in the separation cylinder, and the passageway for food waste is blocked by the outer shell of the outer cylinder, making it suitable for repeated refined processing of food waste.

[0041] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purposes and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description, claims and drawings.

[0042] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. Attached Figure Description

[0043] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0044] Figure 1 This is a schematic diagram of the on-site treatment device for kitchen waste provided in Embodiment 1 of the present invention;

[0045] Figure 2 This is another structural schematic diagram of the in-situ food waste treatment device provided in Embodiment 1 of the present invention;

[0046] Figure 3 This is another structural schematic diagram of the in-situ food waste treatment device provided in Embodiment 1 of the present invention;

[0047] Figure 4 This is a schematic diagram of the structure of the in-situ food waste treatment device provided in Embodiment 2 of the present invention;

[0048] Figure 5 This is another structural schematic diagram of the in-situ food waste treatment device provided in Embodiment 2 of the present invention;

[0049] Figure 6 This is another structural schematic diagram of the in-situ food waste treatment device provided in Embodiment 2 of the present invention;

[0050] Figure 7 This is a flowchart illustrating the method of using the in-situ food waste treatment device provided in Embodiment 3 of the present invention.

[0051] Diagram: 100 - Machine casing; 200 - Crushing mechanism; 300 - Conveying mechanism; 400 - Centrifugal mechanism; 500 - Stirring and cutting mechanism; 600 - Crushing bin; 700 - Filter screen; 800 - Water-oil separation mechanism; 900 - Drying mechanism; 101 - Granulation mechanism; 102 - Solid waste collection bin; 103 - Liquid waste collection bin; 104 - Spraying mechanism; 105 - Water tank; 106 - Water pump; 107 - Spray nozzle; 108 - Heating mechanism; 109 - Top cover ; 401-First drive motor; 402-First transmission shaft; 403-Centrifuge cylinder; 404-Passable passage for kitchen waste; 405-Inner cylinder; 406-Outer cylinder; 407-Adjusting component; 408-First cutting blade; 409-First discharge hole; 410-Second cutting blade; 411-Second discharge hole; 412-Screw; 413-Nut; 414-Slide rail; 415-Hydraulic cylinder; 501-Second drive motor; 502-Second transmission shaft; 503-Cutting tool. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present invention.

[0053] To facilitate understanding of this embodiment, the in-situ treatment device for kitchen waste disclosed in this embodiment of the invention will first be described in detail.

[0054] Example 1

[0055] This invention provides an in-situ treatment device for kitchen waste, see [link / reference]. Figure 1-3 The schematic diagram of the on-site treatment device for kitchen waste shown includes a machine shell 100, a crushing mechanism 200, a conveying mechanism 300, a stirring and cutting mechanism 500, a centrifugal mechanism 400, a crushing bin 600, a filter screen 700, a water-oil separation mechanism 800, a drying mechanism 900, a granulation mechanism 101, a control mechanism, a solid phase waste collection bin 102, and a liquid phase waste collection bin 103.

[0056] The outer shell 100 is made of food-grade stainless steel and has multiple interfaces, such as water inlet pipe and discharge pipe.

[0057] The crushing mechanism 200 is located at the top of the outer casing 100, specifically at the top inside the outer casing 100. In this invention, the crushing mechanism 200 has multiple cooperating crushing rollers. The relative rolling of the crushing rollers squeezes the kitchen waste, achieving the purpose of crushing. In some embodiments, the initial crushing of kitchen waste can also be achieved by setting multiple relatively moving blade groups.

[0058] In Embodiment 1 of the present invention, the control mechanism is communicatively connected to the crushing mechanism 200, the conveying mechanism 300, the stirring and cutting mechanism 500, the centrifugal mechanism 400, the crushing hopper 600, the water-oil separation mechanism 800, the drying mechanism 900, and the granulation mechanism 101. The control mechanism described in this invention has computing capabilities and can control the aforementioned components such as the crushing mechanism 200, the conveying mechanism 300, the stirring and cutting mechanism 500, the centrifugal mechanism 400, the crushing hopper 600, the water-oil separation mechanism 800, the drying mechanism 900, and the granulation mechanism 101 by outputting commands.

[0059] In this first embodiment, the control mechanism is signal-connected to the crushing mechanism 200, and the control mechanism controls the crushing mechanism 200 to crush the kitchen waste. Specifically, the control mechanism can adjust the on / off state of the crushing mechanism 200 and / or the crushing speed, etc.

[0060] The conveying mechanism 300 is connected to the control mechanism by signal. The conveying mechanism 300 is located between the crushing mechanism 200 and the centrifugal mechanism 400 and is used to convey the kitchen waste crushed by the crushing mechanism 200 to the centrifugal mechanism 400.

[0061] In this embodiment, the conveying mechanism 300 can be a conveyor belt or a conveying pipe, etc.

[0062] The centrifuge mechanism 400 includes a first drive motor 401, a first transmission shaft 402, and a centrifuge cylinder 403. The first drive motor 401 drives the centrifuge cylinder 403 to rotate along the axis of the centrifuge cylinder 403 through the first transmission shaft 402. The cylinder wall of the centrifuge cylinder 403 is provided with a passageway 404 for food waste.

[0063] The stirring and cutting mechanism 500 includes a second drive motor 501, a second transmission shaft 502, and a cutting tool 503.

[0064] In this first embodiment, both the first drive motor 401 and the second drive motor 501 can be stepper motors, servo motors, etc.

[0065] The first drive shaft 402 and the second drive shaft 502 are coaxially arranged. Specifically, the first drive shaft 402 can be set as a hollow shaft, and the second drive shaft 502 is inserted into the first drive shaft 402. The second drive shaft 502 and the first drive shaft 402 are connected by bearings, so that the first drive shaft 402 and the second drive shaft 502 are coaxially arranged and do not affect each other's movement.

[0066] The cutting tool 503 is disposed inside the centrifuge tube 403, and the second drive motor 501 drives the cutting tool 503 to rotate along the axis of the second drive shaft 502 inside the centrifuge tube 403 via the second drive shaft 502.

[0067] The length of the cutting tool 503 should be less than the radius of the centrifuge cylinder 403 on the horizontal plane where it is located, so as to avoid friction or rubbing between the cutting tool 503 and the inner wall of the centrifuge cylinder 403.

[0068] The cutting tool 503 rotates in the opposite direction to the centrifuge cylinder 403. The first drive shaft 402 and the second drive shaft 502 rotate in opposite directions, so the cutting tool 503 connected to the second drive shaft 502 rotates in the opposite direction to the centrifuge cylinder 403 connected to the first drive shaft 402.

[0069] The crushing hopper 600 is fitted outside the centrifugal mechanism 400 and the mixing and cutting mechanism 500, and is used to collect kitchen waste passing through the kitchen waste passage 404. In this embodiment, due to centrifugal force, the kitchen waste passing through the waste passage enters the crushing hopper 600 and falls onto the filter screen 700 located at the bottom of the crushing hopper 600 under the action of gravity.

[0070] The filter screen 700 is located at the bottom of the crushing hopper 600. It can receive the kitchen waste falling from the crushing hopper 600 and transfer the kitchen waste to the solid waste collection hopper 102.

[0071] The solid waste collection bin 102 is located between the filter screen 700 and the drying mechanism 900 and is used to hold solid kitchen waste.

[0072] The filter screen 700 has a screen for separating food waste into solid food waste and liquid food waste; the liquid food waste falls from the screen holes into the liquid waste collection chamber 103 located below.

[0073] The liquid phase waste collection bin 103 is located below the filter screen 700 and is used to collect liquid phase kitchen waste.

[0074] The drying unit 900 is located between the solid waste collection chamber 102 and the granulation unit 101. It is used to dry solid kitchen waste. Specifically, heated air is continuously blown onto the solid kitchen waste to achieve the drying process.

[0075] The water-oil separation mechanism 800 is installed inside the liquid phase waste collection chamber 103 to separate water and oil from liquid phase kitchen waste.

[0076] In this first embodiment, the centrifuge cylinder 403 includes an inner cylinder 405, an outer cylinder 406, and an adjustment component 407. The inner cylinder 405 and the outer cylinder 406 are concentrically arranged and closely connected to each other.

[0077] The first drive motor 401 is connected to the inner cylinder 405 and the outer cylinder 406 respectively, and is used to drive the inner cylinder 405 and the outer cylinder 406 to rotate along the concentric axis of the inner cylinder 405 and the outer cylinder 406; the outer cylinder 406 is sleeved on the outside of the inner cylinder 405 and fits snugly, and both the inner cylinder 405 and the outer cylinder 406 are made of antibacterial material.

[0078] The inner cylinder 405 is provided with a first discharge hole 409, and a first cutting blade 408 is provided at the edge of the first discharge hole 409. The first cutting blade 408 protrudes in the direction of the inner side of the inner cylinder 405, and the blade tip of the first cutting blade 408 faces the rotation direction of the centrifuge cylinder 403.

[0079] A second discharge hole 411 is provided on the outer cylinder 406 at a position corresponding to the first discharge hole 409; a second cutting blade 410 is provided at the edge of the second discharge hole 411, the second cutting blade 410 protrudes inward toward the inner side of the outer cylinder 406, and the blade tip of the second cutting blade 410 faces the rotation direction of the centrifuge cylinder 403; the second cutting blade 410 is inserted into the first discharge hole 409.

[0080] The passageway 404 for food waste is formed at the overlap of the first discharge hole 409 and the second discharge hole 411; the overlap area of ​​the passageway 404 for food waste can be adjusted by adjusting the relative position of the second discharge hole 411 with respect to the first discharge hole 409.

[0081] The adjustment component 407 is connected to the inner cylinder 405 and the outer cylinder 406 respectively, and is used to change the size of the passage 404 for food waste by adjusting the relative rotation angle between the inner cylinder 405 and the outer cylinder 406, and to change the position of the second cutting blade 410 relative to the first cutting blade 408.

[0082] When the adjusting component 407 adjusts the relative rotation angle between the inner cylinder 405 and the outer cylinder 406, the first discharge hole 409 moves relative to the second discharge hole 411, the passageway 404 for kitchen waste changes, and the second cutting blade 410 moves within the first discharge hole 409, changing the relative position between the first cutting blade 408 and the second cutting blade 410.

[0083] In the in-situ food waste treatment device provided in Embodiment 1 of the present invention, during use, the operator first needs to pour the food waste raw material into the crushing mechanism 200. The crushing mechanism 200 crushes and pulverizes the food waste raw material, and then conveys it to the centrifugal mechanism 400 via the conveying mechanism. The control mechanism controls the operation of the centrifugal mechanism 400, and the centrifugal cylinder 403 of the centrifugal mechanism 400 rotates around its own axis. The control mechanism controls the stirring and cutting mechanism 500 to rotate in the opposite direction to its own axis and the rotation direction of the centrifugal cylinder 403. At this time, the food waste located in the centrifugal cylinder 403 is subjected to the centrifugal force of the centrifugal mechanism 400, the support force of the cylinder wall of the centrifugal cylinder 403, the frictional force of the cylinder wall of the centrifugal cylinder 403, and possibly the shearing force of the cutting tool 503. Under the action of centrifugal force, the moisture and some small particles in the kitchen waste enter the crushing hopper 600 through the kitchen waste passage 404 on the centrifuge cylinder 403; under the support force and friction of the centrifuge cylinder 403 wall, the kitchen waste moves or is squeezed relative to the inner cylinder 405. Under the action of the first cutting blade 408 on the inner cylinder 405 or the second cutting blade 410 on the outer cylinder 406, the kitchen waste is cut into more small particles, which enter the crushing hopper 600 through the kitchen waste passage 404.

[0084] Similarly, under the shearing force of the cutting blade 503, the kitchen waste will be cut into more small particles, which will then enter the crushing hopper 600 through the kitchen waste passage 404.

[0085] As can be seen from the present solution, the present solution utilizes a rotating cutting tool 503 that rotates in the opposite direction to the rotation of the separation cylinder inside the closed separation cylinder, which generates relative motion with the kitchen waste moving with the separation cylinder inside the separation cylinder, resulting in a faster relative speed, which is conducive to cutting the kitchen waste quickly and powerfully.

[0086] In addition, this solution fully considers the centrifugal force, friction force and support force on the food waste, and uses the first cutting blade 408 and the second cutting blade 410 on the separation cylinder to finely cut the food waste into smaller particles, which are more convenient for subsequent composting.

[0087] Furthermore, the in-situ food waste treatment device provided in Embodiment 1 of the present invention can adjust the relative position of the inner cylinder 405 and the outer cylinder 406 using the adjusting component 407, thereby adjusting the position of the first discharge hole 409 of the inner cylinder 405 relative to the second discharge hole 411 of the outer cylinder 406. This allows for adjustment of the size of the food waste passageway 404 formed in the overlapping portion of the first discharge hole 409 and the second discharge hole 411. In this way, the filtration accuracy of the food waste in the centrifuge cylinder 403 can be precisely controlled.

[0088] Food waste particles, oil, and moisture, passing through the centrifugal mechanism 400 and the mixing and cutting mechanism 500, enter the crushing hopper 600. Under gravity, they fall onto the filter screen 700, while the moisture and oil drip into the liquid phase waste collection hopper 103 located below the filter screen 700 for oil-liquid separation. The food waste particles, after passing through the filter screen 700, enter the solid phase waste collection hopper 102 for storage.

[0089] The drying unit 900, which is connected to the solid waste collection bin 102, dries the solid kitchen waste. The dried kitchen waste then enters the granulation unit 101 for granulation to produce granular raw materials that can be used to make fertilizer.

[0090] The in-situ food waste treatment device provided in Embodiment 1 of this invention can achieve precise control over the treatment of food waste. Its innovation lies in its ability to handle multiple operating conditions. For example, when the adjusting component 407 adjusts the relative rotation angle between the outer cylinder 406 and the inner cylinder 405 to its minimum, the second cutting blade 410 and the first cutting blade 408 are stacked. At this time, the cutting ability for food waste in the separation cylinder is insufficient, and the food waste passageway 404 is at its maximum, making it more suitable for coarse and rapid processing of food waste. Another example is when the adjusting component 407 adjusts the relative rotation angle between the outer cylinder 406 and the inner cylinder 405 to an intermediate value between the maximum and minimum angles, the second cutting blade 410 and the first cutting blade 408... When the blade 408 separates, the cutting ability of the kitchen waste in the separation cylinder is enhanced, and the passageway 404 for kitchen waste becomes smaller, which is suitable for relatively fine processing of kitchen waste. For example, when the relative rotation angle between the outer cylinder 406 and the inner cylinder 405 is adjusted to the maximum angle using the adjusting component 407, the separation distance between the second cutting blade 410 and the first cutting blade 408 is the maximum. At this time, the cutting ability of the kitchen waste in the separation cylinder is enhanced, and the passageway 404 for kitchen waste is blocked by the outer shell of the outer cylinder 406, which is suitable for repeated fine processing of kitchen waste.

[0091] Furthermore, the adjusting mechanism includes a screw 412, a nut 413, and a slide 414. The slide 414 is formed on the outer cylinder 406, and the screw 412 is inserted into the slide 414. One end of the screw 412 is connected to the inner cylinder 405, and the other end extends out of the slide 414 of the outer cylinder 406. The nut 413 is screwed in from the other end of the screw 412 to fix the position of the screw 412 on the slide 414.

[0092] During use, the operator disassembles the outer casing 100, loosens the nut 413, and adjusts the position of the adjusting screw 412 on the slide rail 414. At this time, the inner cylinder 405 and the outer cylinder 406 rotate relative to each other. After adjustment, tighten the nut 413 to achieve a tight connection between the inner cylinder 405 and the outer cylinder 406.

[0093] Furthermore, the in-situ food waste treatment device provided in Embodiment 1 of the present invention also includes a spraying mechanism 104, which is disposed at the top of the centrifugal mechanism 400, and the spraying direction of the spraying mechanism 104 is towards the top of the inner cylinder 405. In this way, the sprayed water can flow from the top to the bottom of the centrifugal mechanism 400 to wash away the food waste attached to the cylinder wall.

[0094] Furthermore, the centrifuge cylinder 403 is funnel-shaped, with the top diameter of the centrifuge cylinder 403 being larger than the bottom diameter. This funnel-shaped design allows the centrifugal force to exert an upward component on the food waste on the cylinder wall during centrifugal rotation, causing the food waste to move upwards and re-enter the mixing and cutting mechanism 500 for secondary cutting.

[0095] Furthermore, the crushing mechanism 200 includes at least a pair of relatively moving crushing rollers, which are equipped with crushing blades for crushing kitchen waste.

[0096] The in-situ food waste treatment device provided in Embodiment 1 of the present invention further includes a water spraying mechanism, which includes a water tank 105, a water pump 106, and a water spray nozzle 107. The water pump 106 is connected to the water tank 105 and the water spray nozzle 107 and is used to send the water pump 106 in the water tank 105 to the water spray nozzle 107. The water spray nozzle 107 is located on the side of the conveying mechanism 300 near the crushing mechanism 200, and the water spraying direction of the water spray nozzle 107 is towards the side of the conveying mechanism 300 near the centrifugal mechanism 400.

[0097] The in-situ food waste treatment device provided in Embodiment 1 of the present invention further includes a heating mechanism 108, which is disposed in a water tank 105. Hot water can dissolve some of the food waste into small particles, resulting in better rinsing.

[0098] In the on-site food waste treatment device provided in this embodiment 2, the outer casing 100 is provided with a top cover 109, which slides and closes above the crushing mechanism 200. The top cover 109 is connected to the outer casing 100 via a slide rail, thereby achieving the sliding close-up of the top cover above the crushing mechanism 200.

[0099] Furthermore, the crushing mechanism 200 is equipped with a material storage bin at the top, which is funnel-shaped and used to centrally store kitchen waste placed on the crushing mechanism 200.

[0100] The in-situ treatment device for kitchen waste provided in Embodiment 1 of the present invention also includes a photolysis mechanism, which is located below the top cover 109. The photolysis mechanism is used to decompose the waste gas by using strong ultraviolet light with a short wavelength of 185nm, breaking the molecular chain, and at the same time generating a large amount of ozone to oxidize the waste gas.

[0101] Furthermore, the on-site treatment device for kitchen waste provided in Embodiment 1 of the present invention also includes an ultraviolet disinfection lamp, which is installed below the spray device and the irradiation direction of the ultraviolet disinfection lamp is towards the centrifugal mechanism 400.

[0102] In some embodiments, the filter screen 700 includes a vibrating assembly and a screen mesh, with the vibrating assembly connected to the screen mesh. A control mechanism is communicatively connected to the vibrating assembly and is used to control the vibration frequency and switching of the vibrating assembly, etc.

[0103] In this first embodiment, the conveying mechanism 300 is a conveyor belt.

[0104] In other embodiments, the conveying mechanism 300 may also be a conveying pipe or the like.

[0105] Example 2

[0106] This invention provides an in-situ treatment device for kitchen waste, see [link / reference]. Figure 4-6 The schematic diagram shown is of a structural diagram of an in-situ food waste treatment device. The device includes: a casing 100, a crushing mechanism 200, a conveying mechanism 300, a mixing and cutting mechanism 500, a centrifugal mechanism 400, a crushing hopper 600, a filter screen 700, a water-oil separation mechanism 800, a drying mechanism 900, a granulation mechanism 101, a control mechanism, a solid waste collection hopper 102, and a liquid waste collection hopper 103. The crushing mechanism 200 is located on top of the casing 100. The control mechanism is signal-connected to the crushing mechanism 200 and controls the crushing mechanism 200 to crush the food waste. The conveying mechanism 300 is signal-connected to the control mechanism and is located between the crushing mechanism 200 and the centrifugal mechanism 400, used to convey the crushed food waste from the crushing mechanism 200 to the centrifugal mechanism 400.

[0107] The centrifuge mechanism 400 includes a first drive motor 401, a first transmission shaft 402, and a centrifuge cylinder 403. The first drive motor 401 drives the centrifuge cylinder 403 to rotate along its axis via the first transmission shaft 402. The centrifuge cylinder 403 has a passageway 404 for food waste passage. The stirring and cutting mechanism 500 includes a second drive motor 501, a second transmission shaft 502, and a cutting tool 503. The first transmission shaft 402 and the second transmission shaft 502 are coaxially arranged. The cutting tool 503 is disposed inside the centrifuge cylinder 403. The second drive motor 501 drives the cutting tool 503 to rotate within the centrifuge cylinder 403 along the axis of the second transmission shaft 502 via the second transmission shaft 502. The crushing bin 600 is sleeved outside the centrifuge mechanism 400 and the stirring and cutting mechanism 500 and is used to collect food waste passing through the food waste passageway 404. The filter screen 700 is located at the bottom of the crushing bin 600. It can receive the kitchen waste falling from the crushing bin 600 and convey the kitchen waste to the solid waste collection bin 102. The filter screen 700 has a screen for screening the kitchen waste into solid kitchen waste and liquid kitchen waste.

[0108] The solid phase waste collection bin 102 is located between the filter screen 700 and the drying mechanism 900 and is used to hold solid phase kitchen waste; the liquid phase waste collection bin 103 is located below the filter screen 700 and is used to collect liquid phase kitchen waste; the drying mechanism 900 is located between the solid phase waste collection bin 102 and the granulation mechanism 101 and is used to dry the solid phase kitchen waste; the water-oil separation mechanism 800 is located inside the liquid phase waste collection bin 103 and is used to separate water and oil from the liquid phase kitchen waste.

[0109] Centrifuge cylinder 403 includes an inner cylinder 405, an outer cylinder 406, and an adjusting assembly 407. The inner cylinder 405 and the outer cylinder 406 are concentrically arranged and closely connected to each other. A first drive motor 401 is connected to the inner cylinder 405 and the outer cylinder 406 respectively, and is used to drive the inner cylinder 405 and the outer cylinder 406 to rotate along the concentric axis of the inner cylinder 405 and the outer cylinder 406. The inner cylinder 405 is provided with a first discharge hole 409, and a first cutting blade 408 is provided at the edge of the first discharge hole 409. The first cutting blade 408 is protruding inward toward the inner side of the inner cylinder 405, and the first cutting blade... The blade of 408 faces the rotation direction of the centrifuge cylinder 403; a second discharge hole 411 is provided on the outer cylinder 406 at a position corresponding to the first discharge hole 409; a second cutting blade 410 is provided at the edge of the second discharge hole 411, the second cutting blade 410 protrudes inward toward the inner side of the outer cylinder 406, and the blade of the second cutting blade 410 faces the rotation direction of the centrifuge cylinder 403; the second cutting blade 410 is inserted into the first discharge hole 409; a passageway 404 for food waste is formed in the overlapping part of the first discharge hole 409 and the second discharge hole 411.

[0110] The adjusting component 407 is connected to both the inner cylinder 405 and the outer cylinder 406. It is used to change the size of the passageway 404 for food waste and the position of the second cutting blade 410 relative to the first cutting blade 408 by adjusting the relative rotation angle between the inner cylinder 405 and the outer cylinder 406. When the adjusting component 407 adjusts the relative rotation angle between the inner cylinder 405 and the outer cylinder 406, the first discharge hole 409 moves relative to the second discharge hole 411, changing the passageway 404 for food waste. The second cutting blade 410 moves within the first discharge hole 409, changing the relative position of the first cutting blade 408 and the second cutting blade 410.

[0111] Optionally, the adjusting mechanism includes a hydraulic cylinder 415, which includes a cylinder body and a hydraulic rod. The cylinder body is connected to the outer cylinder 406, and the connection can be hinged to the outer cylinder 406. The hydraulic rod is connected to the inner cylinder 405, and the connection can also be hinged. The hydraulic cylinder 415 adjusts the relative rotation angle between the inner cylinder 405 and the outer cylinder 406 by extending and retracting the hydraulic rod.

[0112] In this second embodiment, the centrifugal mechanism 400 includes a support frame and a ring power supply. The hydraulic cylinder 415 is equipped with a power-collecting brush, which is located at the bottom of the outer cylinder 406. The ring power supply is mounted on the support frame, which supports and fixes the ring power supply. When the outer cylinder 406 rotates, the power-collecting brush of the hydraulic cylinder 415 is electrically connected to the ring power supply, thereby enabling the hydraulic cylinder 415 to collect power.

[0113] Furthermore, the water-oil separation mechanism 800 is installed inside the liquid phase waste collection chamber 103. The water-oil separation mechanism 800 includes a buoy, an identification sensor, a drive component, a suction nozzle, a suction pipe, an electrically controlled valve, a suction pump, and an oil storage tank.

[0114] The buoy is made of resin material and counterweight, with a density between that of water and edible oil, and is used to indicate the location of water-oil separation. The identification sensor is connected to the drive unit to identify the buoy's position. The suction nozzle is one end of the suction pipe, and the other end of the suction pipe is connected to the oil storage tank. The suction pump is located on the suction pipe and is used to draw oil from the suction nozzle into the oil storage tank. The drive unit is connected to the sensor and is used to drive the suction nozzle to the location of the buoy. The electrically controlled valve, sensor, drive unit, and suction pump are all electrically connected to the control mechanism. The electrically controlled valve is located on the suction nozzle and is used to control the opening or closing of the suction nozzle.

[0115] It should be noted that the granulation mechanism 101 includes a feed inlet, an extrusion chamber, an extrusion screw 412, a third drive motor, a heating component, an extrusion port, and a cutting component; the feed inlet is connected to the extrusion chamber, and the third drive motor drives the extrusion screw 412 to rotate inside the extrusion chamber to extrude solid kitchen waste; the heating component is located inside the extrusion chamber and is used to heat the extrusion chamber; the extrusion port is located at one end of the extrusion chamber, and the cutting component is located at the extrusion port and is used to cut the extruded solid kitchen waste.

[0116] It is worth mentioning that the solid waste collection bin 102 is equipped with a microbial culture bin, which is used to place microbial culture and is connected to the solid waste collection bin 102.

[0117] The microbial culture chamber contains microbial cultures for decomposing kitchen waste. The microbial culture chamber is located inside the solid waste collection chamber 102 and is used to add microbial cultures.

[0118] Example 3

[0119] Corresponding to the on-site food waste treatment device provided in Embodiment 1 or Embodiment 2, Embodiment 3 of the present invention also provides a method for using the on-site food waste treatment device, see [link to Embodiment 3]. Figure 7 The flowchart shown illustrates the usage method of the in-situ food waste treatment device. This embodiment three provides a method for using the in-situ food waste treatment device described in embodiment one or two. The method includes activating the device, pouring food waste into the crushing mechanism 200, conveying the crushed food waste through the conveying mechanism 300 into the centrifugal mechanism 400, adjusting the relative rotation angle between the inner cylinder 405 and the outer cylinder 406 using the adjusting component 407 to adjust the size of the food waste passageway 404, and driving the centrifugal mechanism. The mixing and cutting mechanism 500 rotates to centrifuge and cut the kitchen waste; the crushing bin 600 collects the centrifuged and cut kitchen waste and sends it to the filter screen 700 to filter the kitchen waste; the liquid phase waste collection bin 103 holds the liquid phase kitchen waste, and the solid phase waste collection bin 102 contains the solid phase kitchen waste; the water-oil separation mechanism 800 works to separate the water and oil entering the liquid phase waste collection bin 103; the drying mechanism 900 works to dry the solid phase kitchen waste entering the solid phase waste collection bin 102; and the granulation mechanism 101 extrudes and granulates the solid phase kitchen waste.

[0120] In addition, in the description of the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0121] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0122] Finally, it should be noted that the above embodiments are only specific implementation methods of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The scope of protection of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that any person skilled in the art can modify or easily conceive of changes to the technical solutions described in the above embodiments within the technical scope disclosed by the present invention, or replace some of the technical features therein with equivalents. Such modifications, changes or replacements do not deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A device for on-site treatment of kitchen waste, characterized in that, include: The machine body includes an outer shell, crushing mechanism, conveying mechanism, stirring and cutting mechanism, centrifugal mechanism, crushing bin, filter screen, water-oil separation mechanism, drying mechanism, granulation mechanism, control mechanism, solid waste collection bin, and liquid waste collection bin. The crushing mechanism is located on the top of the outer shell of the machine body; the control mechanism is signal-connected to the crushing mechanism, and the control mechanism controls the crushing mechanism to crush the kitchen waste. The conveying mechanism is signal-connected to the control mechanism. The conveying mechanism is located between the crushing mechanism and the centrifugal mechanism and is used to convey the kitchen waste crushed by the crushing mechanism to the centrifugal mechanism. The centrifugation mechanism includes a first drive motor, a first transmission shaft, and a centrifuge drum. The first drive motor drives the centrifuge drum to rotate along its axis via the first transmission shaft. The centrifuge drum wall is provided with a passageway for food waste. The stirring and cutting mechanism includes a second drive motor, a second transmission shaft, and a cutting tool; The first drive shaft and the second drive shaft are coaxially arranged, the cutting tool is arranged inside the centrifuge tube, and the second drive motor drives the cutting tool to rotate inside the centrifuge tube along the axis of the second drive shaft through the second drive shaft. The rotation direction of the cutting tool is opposite to the rotation direction of the centrifuge tube. The crushing hopper is fitted outside the centrifugal mechanism and the stirring and cutting mechanism, and is used to collect the kitchen waste that passes through the passageway for kitchen waste. The filter screen is located at the bottom of the crushing hopper, which can receive the kitchen waste falling from the crushing hopper and convey the kitchen waste to the solid waste collection hopper; The filter screen has a screen mesh, which is used to separate kitchen waste into solid phase kitchen waste and liquid phase kitchen waste; The solid waste collection bin is located between the filter screen and the drying mechanism and is used to hold solid kitchen waste. The liquid waste collection chamber is located below the filter screen and is used to collect liquid kitchen waste; The drying mechanism is located between the solid waste collection bin and the granulation mechanism and is used to dry the solid kitchen waste. The water-oil separation mechanism is installed inside the liquid phase waste collection chamber and is used to separate water and oil from liquid phase kitchen waste; The centrifuge cylinder includes an inner cylinder, an outer cylinder, and an adjustment assembly. The inner cylinder and the outer cylinder are concentrically arranged and closely connected to each other. The first drive motor is connected to the inner cylinder and the outer cylinder respectively, and is used to drive the inner cylinder and the outer cylinder to rotate along the concentric axis of the inner cylinder and the outer cylinder. The inner cylinder is provided with a first discharge hole, and a first cutting blade is provided at the edge of the first discharge hole. The first cutting blade protrudes in the direction of the inner side of the inner cylinder, and the blade tip of the first cutting blade faces the rotation direction of the centrifuge cylinder. A second discharge hole is provided on the outer cylinder at a position corresponding to the first discharge hole; a second cutting blade is provided at the edge of the second discharge hole, the second cutting blade protrudes inward toward the inner side of the outer cylinder, and the blade tip of the second cutting blade faces the rotation direction of the centrifuge cylinder; the second cutting blade is inserted into the first discharge hole; The passageway for food waste is formed at the overlap of the first discharge hole and the second discharge hole; The adjustment component is connected to the inner cylinder and the outer cylinder respectively, and is used to change the size of the passage for food waste by adjusting the relative rotation angle between the inner cylinder and the outer cylinder, and to change the position of the second cutting blade relative to the first cutting blade; When the adjusting component adjusts the relative rotation angle between the inner cylinder and the outer cylinder, the first discharge hole moves relative to the second discharge hole, the passageway for kitchen waste changes, and the second cutting blade moves within the first discharge hole, changing the relative position of the first cutting blade and the second cutting blade. Under the action of the first cutting blade on the inner cylinder and the second cutting blade on the outer cylinder, the kitchen waste is cut into more small particles, which can then enter the crushing hopper through the kitchen waste passage. When the adjustment component adjusts the relative rotation angle between the outer and inner cylinders to its minimum, such as when the second and first cutting blades are stacked, the cutting ability for food waste inside the centrifuge is insufficient, and the passageway for food waste is maximized, making it suitable for coarse and rapid processing of food waste. When the adjustment component adjusts the relative rotation angle between the outer and inner cylinders to an intermediate value between the maximum and minimum angles, the second and first cutting blades separate, increasing the cutting ability for food waste inside the centrifuge and reducing the passageway for food waste, making it suitable for relatively fine processing of food waste. When the adjustment component adjusts the relative rotation angle between the outer and inner cylinders to a value between the maximum angles, the separation distance between the second and first cutting blades is maximized, increasing the cutting ability for food waste inside the centrifuge, and the passageway for food waste is blocked by the outer shell of the outer cylinder, making it suitable for repeated fine processing of food waste. The centrifuge tube is funnel-shaped, and the diameter of the top of the centrifuge tube is larger than the diameter of the bottom of the centrifuge tube; It also includes a spraying mechanism, which is located on top of the centrifuge mechanism and sprays water towards the top of the inner cylinder. The spraying water flows from the top to the bottom of the centrifuge mechanism to wash away the kitchen waste attached to the cylinder wall.

2. The on-site treatment device for kitchen waste according to claim 1, characterized in that, The adjusting assembly includes a screw, a nut, and a slide rail. The slide rail is formed on the outer cylinder, and the screw is inserted into the slide rail. One end of the screw is connected to the inner cylinder, and the other end extends out of the slide rail of the outer cylinder. The nut is screwed in from the other end of the screw to fix the position of the screw on the slide rail.

3. The on-site treatment device for kitchen waste according to claim 1, characterized in that, The adjusting assembly includes a hydraulic cylinder, which includes a cylinder body and a hydraulic rod. The cylinder body is connected to the outer cylinder, and the hydraulic rod is connected to the inner cylinder. The hydraulic cylinder adjusts the relative rotation angle between the inner cylinder and the outer cylinder by extending and retracting the hydraulic rod.

4. The on-site treatment device for kitchen waste according to claim 3, characterized in that, The centrifugal mechanism includes a support frame and a ring power supply. The hydraulic cylinder is equipped with a power-collecting brush, which is located at the bottom of the outer cylinder. The ring power supply is located on the support frame. When the outer cylinder rotates, the power-taking brush of the hydraulic cylinder is electrically connected to the annular power supply.

5. The on-site treatment device for kitchen waste according to claim 1, characterized in that, The crushing mechanism includes at least one pair of relatively moving crushing rollers, and the crushing rollers are provided with crushing blades for crushing kitchen waste.

6. The on-site treatment device for kitchen waste according to claim 1, characterized in that, It also includes a water spraying mechanism, which includes a water tank, a water pump, and a water spray nozzle. The water pump is connected to the water tank and the water spray nozzle and is used to pump water from the water tank to the water spray nozzle. The water spray nozzle is located on the side of the conveying mechanism near the crushing mechanism, and the water spraying direction of the water spray nozzle is towards the side of the conveying mechanism near the centrifugal mechanism.

7. The on-site treatment device for kitchen waste according to claim 6, characterized in that, It also includes a heating mechanism, which is disposed in the water tank.

8. The on-site treatment device for kitchen waste according to claim 1, characterized in that, The bottom of the crushing hopper is funnel-shaped.

9. The on-site treatment device for kitchen waste according to claim 1, characterized in that, The outer casing of the machine body is provided with a top cover, which slides and closes on the crushing mechanism.

10. The on-site treatment device for kitchen waste according to claim 1, characterized in that, The crushing mechanism is equipped with a material storage bin at the top, which is funnel-shaped and used to centrally store kitchen waste on the crushing mechanism.

11. The on-site treatment device for kitchen waste according to claim 9, characterized in that, It also includes a photolysis mechanism, which is located below the top cover. The photolysis mechanism is used to decompose the waste gas with strong ultraviolet light at a short wavelength of 185nm, breaking the molecular chain, and at the same time generating a large amount of ozone to oxidize the waste gas.

12. The on-site treatment device for kitchen waste according to claim 1, characterized in that, It also includes an ultraviolet disinfection lamp, which is located below the spraying mechanism and the ultraviolet disinfection lamp is directed toward the centrifugal mechanism.

13. The on-site treatment device for kitchen waste according to claim 1, characterized in that, The filter screen includes a vibrating component and a screen mesh, wherein the vibrating component is connected to the screen mesh.

14. The on-site treatment device for kitchen waste according to claim 1, characterized in that, The water-oil separation mechanism is installed in the liquid phase waste collection bin. The water-oil separation mechanism includes a buoy, an identification sensor, a drive component, a suction nozzle, a suction pipe, an electrically controlled valve, a suction pump, and an oil storage tank. The buoy is made of resin material and counterweight, with a density between that of water and edible oil, and is used to indicate the location of water-oil separation. The identification sensor is connected to the drive unit and is used to identify the position of the buoy. The suction nozzle is one end of the suction tube, and the other end of the suction tube is connected to the oil storage tank. The suction pump is located on the suction tube and is used to draw oil from the suction nozzle into the oil storage tank. The drive unit is connected to the sensor and is used to drive the suction nozzle to the location of the buoy. The electrically controlled valve, the sensor, the drive unit, and the suction pump are all electrically connected to the control mechanism. The electrically controlled valve is located on the suction nozzle and is used to control the opening or closing of the suction nozzle.

15. The on-site treatment device for kitchen waste according to claim 1, characterized in that, The granulation mechanism includes a feed inlet, an extrusion chamber, an extrusion screw, a third drive motor, a heating component, an extrusion port, and a cutting component. The feed inlet is connected to the extrusion chamber, and the third drive motor drives the extrusion screw to rotate within the extrusion chamber to extrude the solid kitchen waste. The heating component is located within the extrusion chamber and is used to heat the extrusion chamber. The extrusion port is located at one end of the extrusion chamber, and the cutting component is located at the extrusion port and is used to cut the extruded solid kitchen waste.

16. The on-site treatment device for kitchen waste according to claim 1, characterized in that, The conveying mechanism is a conveyor belt.

17. The on-site treatment device for kitchen waste according to claim 1, characterized in that, The solid waste collection bin is equipped with a microbial culture bin, which is used to store microbial cultures and is connected to the solid waste collection bin.

18. A method of using an on-site food waste treatment device, comprising using the on-site food waste treatment device as described in any one of claims 1-17, characterized in that, include: Start the on-site food waste treatment device and pour the food waste into the crushing mechanism; The conveyor system transports the food waste, which has been crushed by the crushing mechanism, into the centrifuge system. Adjust the relative rotation angle between the inner and outer cylinders to adjust the size of the passageway for food waste; The centrifugal mechanism and the stirring and cutting mechanism are driven to rotate, centrifuging and cutting the kitchen waste; The crushing hopper collects the centrifuged and shredded kitchen waste, which is then fed into a filter screen to filter the kitchen waste. The liquid phase waste collection bin holds liquid phase kitchen waste, while the solid phase waste collection bin contains solid phase kitchen waste. The water-oil separation mechanism works to separate the water and oil that enter the liquid phase waste collection bin; The drying mechanism operates to dry the solid kitchen waste that has entered the solid waste collection bin; The granulation unit performs extrusion granulation treatment on solid-phase kitchen waste.

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