Centralized treatment device and treatment method for kitchen garbage

Abstract

The invention relates to the technical field of garbage treatment, and provides a kitchen garbage centralized treatment device and a treatment method.The kitchen garbage centralized treatment device is characterized in that a cleaning space, a feeding opening and a discharging opening are formed in a box body, and the feeding opening and the discharging opening communicate with the cleaning space; the multiple guide plates are arranged in the cleaning space, and a guide space is formed among the multiple guide plates and located below the feeding port; the sorting plate is rotationally arranged in the cleaning space, the sorting plate is located between the feeding port and the guide plate, the sorting plate is used for receiving kitchen garbage generated by residents, and the guide space is opened or closed after the sorting plate rotates; the two ends of the first elastic piece are arranged on the sorting plate and the box body correspondingly, and the first elastic piece is used for providing force for resetting the sorting plate. By means of the technical scheme, the problems that in the prior art, grease in kitchen waste containing large water or oil can be broken without being separated, and maximum utilization of resources cannot be achieved are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of garbage disposal, and in particular to a device and method for centralized treatment of kitchen waste. Background Art

[0002] With the improvement of people's living standards and the acceleration of urbanization, the amount of kitchen waste is increasing. Kitchen waste has the characteristics of high moisture content, high organic matter content, easy to rot and stink. If it is not properly handled, it will not only cause serious pollution to the environment, but also affect the quality of life and health of residents. Therefore, centralized treatment of kitchen waste has important practical significance. There are three common treatment methods, namely incineration, landfill and composting. Among them, landfill takes up a lot of land resources and may cause soil and groundwater pollution. At the same time, the organic matter in kitchen waste will produce greenhouse gases such as methane during the landfill process, aggravating global climate change. The high moisture content of incineration of kitchen waste will reduce the incineration efficiency and increase energy consumption. In addition, harmful substances such as dioxins may be produced during the incineration process, which will harm the environment and human health.

[0003] In the process of collecting kitchen waste, since different garbage has the same weight, the existing kitchen waste treatment process will directly crush the garbage, and the grease inside the kitchen waste with high water or oil content will be crushed without separation, which cannot achieve the maximum utilization of resources. Summary of the invention

[0004] The present invention provides a centralized kitchen waste treatment device and method, which solves the problem in the related art that the grease inside kitchen waste with a large water or oil content will be broken without separation, and the maximum utilization of resources cannot be achieved.

[0005] The technical solution of the present invention is as follows: A centralized kitchen waste treatment device, comprising: A box body, having a cleaning space inside and a feed inlet and a discharge port communicated with the cleaning space; A plurality of guide plates are provided in the cleaning space, wherein the plurality of guide plates form a guide space, and the guide space is located below the feed port; A sorting plate, rotatably disposed in the cleaning space, the sorting plate being located between the feed port and the guide space, the sorting plate, after the sorting plate rotates, opens or closes the guide space; A first elastic member, two ends of which are respectively arranged on the sorting plate and the box body, and the first elastic member is used to provide a force for the sorting plate to close the guide space; A crushing member is arranged in the cleaning space, the crushing member is located on one side outside the guide space, and the crushing member is also located at the other end of the sorting plate that opens or closes the guide space. The crushing member is far away from the crushing member and is used to crush the kitchen waste entering from the feed port.

[0006] As a further technical solution, it also includes: There are a plurality of turntables which are rotatably arranged on the guide plate. The turntables are provided with a plurality of teeth which are used for scraping the plastic bags containing the kitchen waste.

[0007] As a further technical solution, it also includes: A conveyor belt is arranged below the guide plate, and one end of the conveyor belt is used to receive and convey the kitchen waste dropped into the guide space, and to deliver the kitchen waste into the crushing element.

[0008] As a further technical solution, the conveyor belt is inclined and gradually rises in a direction close to the crushing element, and further comprises: There are a plurality of conveying plates which are arranged in an array and at intervals on the conveying belt.

[0009] As a further technical solution, the conveyor belt has a plurality of water holes, and further comprises: An oil separation pool is arranged in the cleaning space, and the oil separation pool is located below the conveyor belt. The oil separation pool is used to receive the water and grease in the kitchen waste dripping from the water hole.

[0010] As a further technical solution, it also includes: There are several spray heads, which are arranged on the box body and are used to spray hot water onto the kitchen waste.

[0011] As a further technical solution, it also includes: A refrigerator, arranged in the cleaning space; A scraper is slidably arranged on the oil separation pool, and is used to scrape the solidified grease above the oil separation pool; An oil storage tank is arranged at one side of the oil separation pool, and the scraper slides close to or away from the oil storage tank, and the oil storage tank is used to store grease; A mixing tank is arranged at one side of the oil separation tank, and is used to mix the crushed kitchen waste and the water in the oil separation tank after oil removal. The mixing tank is connected to the discharge port.

[0012] As a further technical solution, it also includes: A feeding plate is slidably arranged in the cleaning space, and the bottom of the feeding plate abuts against a side of the sorting plate away from the guide plate. After the feeding plate slides, it approaches or moves away from the feed port.

[0013] As a further technical solution, it also includes: A temporary fermentation storage tank is spherical and buried underground on one side of the box body. The temporary fermentation storage tank is connected to the mixing tank and is used to store and ferment the kitchen waste after crushing.

[0014] A method for centralized treatment of kitchen waste, using the centralized treatment device according to any one of claims 1 to 9 to treat kitchen waste, comprising the following steps: S1. Put the kitchen waste into the box through the feeding port of the box; S2. After the kitchen waste enters the box, it will be received by the sorting board; S3, the first elastic member will judge the weight of the kitchen waste. When the weight is large, the sorting plate will rotate, and the kitchen waste will fall from the sorting plate and enter the guiding space. When the weight is small, the sorting plate will not rotate; S4, the fallen kitchen waste will touch the teeth when falling, and the plastic bag will be cut and fall onto the conveyor belt; S5. When the kitchen waste is being transported along the conveyor belt, the nozzle will spray hot water on the waste; S6, the conveyor belt conveys the food waste to the crushing unit for crushing, and the crushed food waste enters the mixing tank; S7. The crushed kitchen waste is mixed with the water in the oil separation tank and discharged from the discharge port to complete the treatment.

[0015] The working principle and beneficial effects of the present invention are: In the present invention, the sorting plate is used to sort kitchen waste. Usually, kitchen waste with a large water or oil content is relatively heavy. When the heavier waste is placed on the sorting plate, the sorting plate will overcome the elasticity of the first elastic member and rotate, thereby opening the guide space. At this time, the waste will slide down the sorting plate and enter the guide space. After the kitchen waste slides down, the sorting plate will reset under the action of the first elastic member. Through the design of the sorting plate, the processing device can be used as a further technical solution for subsequent processing and transportation, and it is also beneficial to improve the processing speed and efficiency of the waste. The guiding space formed by the guide plate is located below the feed port, which can guide the kitchen waste to enter the cleaning space in an orderly manner, avoid the accumulation and confusion of waste in the processing device, and make the processing process smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0017] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is an axonometric view of the interior of the box in the present invention; Figure 3 For the present invention Figure 2 Schematic diagram of the structure at A in the middle; Figure 4 It is a front view of the internal structure of the box body in the present invention; Figure 5 It is a schematic diagram of the internal structure of the fermentation temporary storage tank in the present invention.

[0018] In the figure: 1. box body, 110. cleaning space, 120. feed port, 130. discharge port, 140. guide plate, 141. guide space, 200. sorting plate, 210. first elastic member, 3. crushing member, 410. turntable, 420. teeth, 500. conveyor belt, 510. conveyor plate, 520. water hole, 600. oil separation pool, 530. nozzle, 700. refrigerator, 710. scraper, 720. oil storage tank, 800. mixing pool, 820. feeding plate, 900. fermentation temporary storage tank. DETAILED DESCRIPTION

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, they can also be understood as further technical solutions without creative work. In some figures, components with the same structure or function are only schematically illustrated, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0020] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0022] Reference Figure 1~Figure 5 , which is the first embodiment of the present invention, proposes a centralized kitchen waste treatment device, including: a box body 1 has a cleaning space 110 and a feed port 120 and a discharge port 130 connected to the cleaning space 110; a plurality of guide plates 140 are arranged in the cleaning space 110, and the plurality of guide plates 140 form a guide space 141, and the guide space 141 is located below the feed port 120; a sorting plate 200 is rotatably arranged in the cleaning space 110, and the sorting plate 200 is located between the feed port 120 and the guide space 141, and the sorting plate 200 is used In order to receive the kitchen waste generated by the residents, the sorting plate 200 rotates to open or close the guide space 141; the two ends of the first elastic member 210 are respectively arranged on the sorting plate 200 and the box body 1, and the first elastic member 210 is used to provide the sorting plate 200 with a force to close the guide space 141; the crushing member 3 is arranged in the cleaning space 110, and the crushing member 3 is located on one side outside the guide space 141, and the crushing member 3 is also located at the other end of the sorting plate 200 that opens or closes the guide space 141, away from the crushing member 3 for crushing the kitchen waste entering from the feed port 120.

[0023] In this embodiment, the sorting plate 200 is used to sort kitchen waste. Generally, kitchen waste with a large amount of water or oil content is relatively heavy. When the heavier waste is placed on the sorting plate 200, the sorting plate 200 will overcome the elasticity of the first elastic member 210 and rotate the sorting plate 200, thereby opening the guide space 141. At this time, the waste will slide down the sorting plate 200 and enter the guide space 141. After the kitchen waste slides down, the sorting plate 200 will be reset under the action of the first elastic member 210. Through the design of the sorting plate 200, the processing device can be used as a further technical solution for subsequent processing and transportation, and it is also conducive to improving the processing speed and efficiency of the waste. The guide space 141 composed of the guide plate 140 is located below the feed port 120, which can guide the kitchen waste to enter the cleaning space 110 in an orderly manner, avoid the accumulation and confusion of waste in the processing device, and make the processing process smoother.

[0024] As a further technical solution, it also includes: there are a plurality of turntables 410, which are rotatably arranged on the guide plate 140, and the turntable 410 has a plurality of teeth 420, and the teeth 420 are used to scrape the plastic bag containing the kitchen waste.

[0025] In this embodiment, the rotating disk 410 and the teeth 420 on the rotating disk 410 provided on the guide plate 140 can effectively scrape the plastic bag containing the kitchen waste. In this way, the kitchen waste in the bag can be fully exposed. In this case, the grease and water in the bag can flow out effectively, ensuring the quality and effect of the grease separation stage. The kitchen waste after the bag is broken will be scattered, reducing the volume, preparing for subsequent crushing and processing. Since the weight of the garbage falling into the guide space 141 is usually large, it will not get stuck, ensuring the continuity of the processing.

[0026] As a further technical solution, it also includes: a conveyor belt 500 is arranged below the guide plate 140 , and one end of the conveyor belt 500 is used to receive and transport the kitchen waste dropped into the guide space 141 , and send the kitchen waste to the crushing part 3 .

[0027] In this embodiment, the conveyor belt 500 is arranged below the guide plate 140, and can promptly receive and transport the kitchen waste that falls from the guide space 141, ensuring that the waste quickly reaches the crushing part 3 for processing, and avoiding the accumulation of waste below the guide space 141, thereby greatly improving the processing efficiency. The conveyor belt 500 directly transports the kitchen waste to the crushing part 3, realizing automated waste transfer and making the processing flow more concise and efficient. There is no need to manually carry the waste, which reduces the labor intensity and also reduces the errors and risks that may be caused by manual operation. The design of the conveyor belt 500 can adapt to kitchen waste of different volumes and weights, improves the adaptability of the device to various waste situations, and enhances the stability of the device.

[0028] As a further technical solution, the conveyor belt 500 is inclined and gradually rises in the direction approaching the crushing part 3 , and further includes: a plurality of conveyor plates 510 , which are arranged on the conveyor belt 500 in an array and at intervals.

[0029] In this embodiment, the conveying plates 510 arranged at intervals in an array on the conveyor belt 500 can better fix and push the kitchen waste during the conveying process, prevent the waste from sliding or piling up, and ensure that the waste is stably conveyed to the crushing unit 3. The stable conveying process can ensure that the kitchen waste reaches the crushing unit 3 on time and accurately, avoid the subsequent crushing process being affected by the conveying problem, and ensure the continuous operation of the device.

[0030] As a further technical solution, the conveyor belt 500 is provided with a plurality of water holes 520 , and also includes: an oil separation pool 600 is arranged in the cleaning space 110 , the oil separation pool 600 is located below the conveyor belt 500 , and the oil separation pool 600 is used to receive the water and grease in the kitchen waste dripping from the water holes 520 .

[0031] In this embodiment, the water holes 520 on the conveyor belt 500 can make the water and grease in the kitchen waste gradually drip during the conveying process, thus achieving preliminary oil-water separation. The oil separation pool 600 is specially used to receive the water and grease dripping from the water holes 520, effectively collecting the oil-water mixture in the kitchen waste, and providing convenient conditions for oil-water separation. The separated grease can be recycled, for example, for the production of biodiesel, etc., thus achieving resource reuse and reducing the impact on the environment.

[0032] As a further technical solution, it also includes: there are a plurality of nozzles 530, which are arranged on the box body 1, and the nozzles 530 are used to spray hot water onto the kitchen waste.

[0033] In this embodiment, hot water can make the grease in the kitchen waste more easily melted and separated. Combined with the water holes 520 of the conveyor belt 500 and the oil separation pool 600, the effect of grease separation is improved, creating better conditions for the recycling of grease. The flow of the oil-water mixture is promoted, making it easier for it to drip into the oil separation pool 600, thereby improving the efficiency of oil-water separation. At the same time, hot water can soften some hard kitchen waste, reduce the wear on the crushing part 3, and extend the service life of the equipment.

[0034] As a further technical solution, it also includes: a refrigerator 700 is arranged in the cleaning space 110; a scraper 710 is slidably arranged on the oil separation pool 600, and the scraper 710 is used to scrape the solidified grease above the oil separation pool 600; an oil storage tank 720 is arranged on one side of the oil separation pool 600, and the scraper 710 slides close to or away from the oil storage tank 720, and the oil storage tank 720 is used to store grease.

[0035] In this embodiment, the setting of the refrigerator 700 enables the grease in the oil separation pool 600 to solidify quickly, which is convenient for the scraper 710 to perform the scraping operation. This greatly improves the efficiency of grease recovery and ensures that the grease can be collected in time for subsequent treatment or utilization. The scraper 710 is slidably set on the oil separation pool 600, and can accurately scrape the solidified grease and transfer it to the oil storage tank 720. The oil storage tank 720 is specifically used to store the scraped grease, so that the grease can be properly preserved and convenient for subsequent transportation and processing. The refrigerator 700, the scraper 710 and the oil storage tank 720 cooperate with other components to form a complete grease treatment system. This system can automatically complete the separation, solidification, scraping and storage of grease during the kitchen waste treatment process, optimizing the entire treatment process. The use of refrigerant can reduce the temperature inside the device, and while solidifying the grease, it can also delay the corruption of garbage inside the device.

[0036] As a further technical solution, it also includes: a mixing tank 800 is arranged on one side of the oil separation tank 600, and the mixing tank 800 is used to mix the crushed kitchen waste and the water in the oil separation tank 600 after oil removal, and the mixing tank 800 is connected to the discharge port 130.

[0037] In this embodiment, the mixing tank 800 mixes the crushed kitchen waste with the deoiled water in the oil separation tank 600, which can make full use of water resources, realize water recycling, and reduce dependence on fresh water resources. The mixed semi-solid waste can be pumped out of the mixing tank 800 by pumping, ensuring a smoother transfer process and reducing the difficulty of transfer.

[0038] As a further technical solution, it also includes: a fermentation temporary storage tank 900, which is spherical and buried underground on one side of the box body 1. The fermentation temporary storage tank 900 is connected to the mixing tank 800, and the fermentation temporary storage tank 900 is used to store and ferment the kitchen waste after crushing.

[0039] In this embodiment, after the mixing tank 800 completes the mixing, the waste will enter the fermentation storage tank 900 for fermentation, so that the waste after crushing is processed by microorganisms, so that it will have a better effect when it is returned to the field as fertilizer, and the odor will not be too strong. The material inlet of the fermentation storage tank 900 is located at the top, and the material outlet is located at the bottom. When the material inside the fermentation storage tank 900 is fermented, the pressure will gradually increase, so that the sediment at the bottom is sent out of the fermentation storage tank 900 under the action of pressure, realizing the transportation of materials without the need for additional power.

[0040] As a further technical solution, it also includes: the feeding plate 820 is slidably set in the cleaning space 110, and the bottom of the feeding plate 820 abuts against the side of the sorting plate 200 away from the guide plate 140. After the feeding plate 820 slides, it approaches or moves away from the feed port 120.

[0041] In this embodiment, the feeding plate 820 can push the garbage which is too light to make the sorting plate 200 overcome the elastic force of the first elastic member 210 and rotate directly into the crushing member 3 through the sliding of the feeding plate 820, without the need for degreasing operation. This can not only prevent the light garbage from getting stuck on the teeth 420 of the wheel after entering the guide channel, but also ensure the normal operation of the device.

[0042] A method for centralized treatment of kitchen waste, comprising the following steps: S1, feeding kitchen waste into a box body 1 through a feed port 120 of the box body 1; S2, after the kitchen waste enters the box body 1, it will be received by a sorting plate 200; S3, a first elastic member 210 will judge the weight of the kitchen waste, if the weight is large, the sorting plate 200 will rotate, and the kitchen waste will fall from the sorting plate 200 and enter the guide space 141, if the weight is small, the sorting plate 200 will not rotate; S4, the fallen kitchen waste When the garbage falls, it will contact the teeth 420, and the plastic bag will be cut and fall onto the conveyor belt 500; S5, when the kitchen waste is transported along the conveyor belt 500, the nozzle 530 will spray hot water on the garbage; S6, the conveyor belt 500 transports the kitchen waste to the crushing part 3 for crushing, and the kitchen waste after crushing will enter the mixing tank 800; S7, the crushed kitchen waste is mixed with the water in the oil separation tank 600 and discharged from the discharge port 130 to complete the treatment.

[0043] In this embodiment, when processing kitchen waste, the kitchen waste is put into the box body 1 through the feed port 120 of the box body 1. After the kitchen waste enters the box body 1, it will be received by the sorting plate 200, and at this time, the first elastic member 210 begins to sense the weight of the kitchen waste. If the weight of the kitchen waste is large, the first elastic member 210 is compressed, the sorting plate 200 rotates, and the kitchen waste falls from the sorting plate 200 and enters the guide space 141 composed of a plurality of guide plates 140; if the weight is small, the sorting plate 200 remains stable and does not rotate. The fallen kitchen waste contacts the turntable 410 rotatably set on the guide plate 140 and the teeth 420 thereon during the falling process, and the plastic bag containing the kitchen waste is cut, and the garbage falls onto the conveyor belt 500 which is inclined and has a plurality of conveyor plates 510. When the kitchen waste is transported by the conveyor belt 500, the nozzles 530 on the box 1 will spray hot water to clean the waste. The hot water can remove stains and residues on the surface of the waste and reduce the generation of odor. On the other hand, it can promote the melting and separation of grease in the waste. The hot water softens some hard kitchen waste and reduces the wear of the subsequent crushing parts 3. The conveyor belt 500 transports the kitchen waste to the crushing parts 3 for crushing. The crushed kitchen waste enters the mixing tank 800. At the same time, the conveyor belt 500 is provided with a water hole 520. The water and grease in the kitchen waste drip into the oil separation tank 600 through the water hole 520 during the transportation process. The grease above the oil separation tank 600 is quickly solidified under the action of the refrigerator 700. The scraper 710 slidably arranged on the oil separation tank 600 scrapes the solidified grease into the oil storage tank 720 for storage for subsequent recycling. The crushed kitchen waste and the deoiled water in the oil separation tank 600 are mixed in the mixing tank 800 and then discharged from the discharge port 130 to complete the treatment.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A centralized kitchen waste treatment device, characterized in that: include: A box body (1) having a cleaning space (110) therein and a feed inlet (120) and a discharge outlet (130) communicated with the cleaning space (110); A plurality of guide plates (140) are arranged in the cleaning space (110), wherein the plurality of guide plates (140) form a guide space (141), and the guide space (141) is located below the feed port (120); A sorting plate (200) is rotatably disposed in the cleaning space (110), the sorting plate (200) being located between the feed port (120) and the guide space (141), the sorting plate (200) opening or closing the guide space (141) after the sorting plate (200) rotates; a first elastic member (210), two ends of which are respectively arranged on the sorting plate (200) and the box body (1), the first elastic member (210) being used to provide a force for the sorting plate (200) to close the guide space (141); A crushing member (3) is arranged in the cleaning space (110), the crushing member (3) is located on a side outside the guide space (141), and the crushing member (3) is also located at the other end of the sorting plate (200) that opens or closes the guide space (141), and the crushing member (3) is used to crush the kitchen waste entering from the feed port (120).

2. A kitchen waste centralized treatment device according to claim 1, characterized in that: Also includes: There are a plurality of turntables (410) which are rotatably arranged on the guide plate (140); the turntable (410) has a plurality of teeth (420) which are used to scrape the plastic bag containing the kitchen waste.

3. The centralized kitchen waste treatment device according to claim 1, characterized in that: Also includes: A conveyor belt (500) is arranged below the guide plate (140); one end of the conveyor belt (500) is used to receive and convey the kitchen waste that falls into the guide space (141), and to deliver the kitchen waste to the crushing unit (3).

4. The centralized kitchen waste treatment device according to claim 3, characterized in that: The conveyor belt (500) is arranged to be inclined, and the conveyor belt (500) gradually rises in a direction approaching the crushing element (3), and further comprises: There are a plurality of conveying plates (510) which are arranged in an array at intervals on the conveying belt (500).

5. The centralized kitchen waste treatment device according to claim 3, characterized in that: The conveyor belt (500) is provided with a plurality of water holes (520), and further comprises: An oil separation pool (600) is arranged in the cleaning space (110); the oil separation pool (600) is located below the conveyor belt (500); the oil separation pool (600) is used to receive water and grease in the kitchen waste dripping from the water hole (520).

6. The centralized kitchen waste treatment device according to claim 1, characterized in that: Also includes: There are a plurality of spray heads (530) disposed on the box body (1), and the spray heads (530) are used to spray hot water onto the kitchen waste.

7. The centralized kitchen waste treatment device according to claim 5, characterized in that: Also includes: A refrigerator (700) is arranged in the cleaning space (110); a scraper (710) slidably disposed on the oil separation pool (600), the scraper (710) being used to scrape solidified grease above the oil separation pool (600); An oil storage tank (720) is arranged on one side of the oil separation pool (600), and the scraper (710) moves closer to or away from the oil storage tank (720) after sliding, and the oil storage tank (720) is used to store grease; A mixing tank (800) is arranged on one side of the oil separation tank (600), the mixing tank (800) is used to mix the crushed kitchen waste and the water in the oil separation tank (600) after oil removal, and the mixing tank (800) is connected to the discharge port (130).

8. The centralized kitchen waste treatment device according to claim 1, characterized in that: Also includes: A feeding plate (820) is slidably disposed in the cleaning space (110), and a bottom of the feeding plate (820) abuts against a side of the sorting plate (200) away from the guide plate (140). After sliding, the feeding plate (820) approaches or moves away from the feed port (120).

9. The centralized kitchen waste treatment device according to claim 5, characterized in that: Also includes: A fermentation temporary storage tank (900), the fermentation temporary storage tank (900) is spherical and buried underground on one side of the box body (1), the fermentation temporary storage tank (900) is connected to the mixing tank (800), and the fermentation temporary storage tank (900) is used to store and ferment the kitchen waste after the crushing is completed.

10. A method for centralized treatment of kitchen waste, characterized in that: The method of using the centralized processing device according to any one of claims 1 to 9 to process kitchen waste comprises the following steps: S1, feeding kitchen waste into the box (1) through the feeding port (120) of the box (1); S2, after the kitchen waste enters the box (1), it will be received by the sorting plate (200); S3, the first elastic member (210) determines the weight of the food waste. When the weight is large, the sorting plate (200) will rotate, and the food waste will fall from the sorting plate (200) and enter the guide space (141). When the weight is small, the sorting plate (200) will not rotate; S4, the fallen food waste contacts the teeth (420) when falling, and the plastic bag is cut and falls onto the conveyor belt (500); S5, when the kitchen waste is being transported by the conveyor belt (500), the nozzle (530) sprays hot water on the waste; S6, the conveyor belt (500) conveys the food waste to the crushing unit (3) for crushing, and the crushed food waste enters the mixing tank (800); S7. The crushed kitchen waste is mixed with the water in the oil separation tank (600) and discharged from the discharge port (130), completing the treatment.

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