Food waste sorting machine
By designing a food waste sorting machine and adopting a multi-stage filtration and crushing mechanism, the problems of low sorting efficiency and human contact risk of food waste have been solved, achieving efficient and safe waste sorting and classified collection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LESHAN JIANYING ENVIRONMENTAL PROTECTION ENGINEERING CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-06-05
AI Technical Summary
The current method of sorting food waste mainly relies on manual labor, which is inefficient and costly. It cannot efficiently separate inorganic and organic matter, and operators are susceptible to infection.
Design a food waste sorting machine that includes a multi-stage filtration and crushing mechanism to achieve multi-stage sorting and classified collection of waste. It includes a first sorting mechanism and a second sorting mechanism, which are used to separate large and small-sized waste and solid and liquid waste, respectively. It is also equipped with a crushing mechanism and a compression component to improve sorting efficiency and safety.
It enables efficient and automated sorting and collection of food waste, significantly improving processing efficiency, shortening the processing cycle, reducing transportation costs, and reducing the risk of human contact.
Smart Images

Figure CN224322060U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of food waste treatment technology, specifically to a food waste sorting machine. Background Technology
[0002] Food waste is characterized by high moisture content, high organic matter content, and easy decomposition. Improper handling can lead to bacterial growth, foul odors, and soil and water pollution, posing a threat to the ecological environment and human health. Traditional food waste treatment methods mainly include landfill, incineration, and composting. Landfilling consumes a large amount of land resources, and leachate can easily pollute groundwater; incineration consumes additional energy and may produce harmful gases; inorganic materials such as plastics and metals mixed in with food waste can reduce compost quality and even cause secondary soil pollution. Therefore, efficient sorting of food waste is a key prerequisite for subsequent resource utilization, mainly involving separating inorganic materials (such as plastic bottles and disposable tableware) from organic materials (such as food scraps).
[0003] Existing food waste sorting mainly relies on manual sorting, which, while flexible, is inefficient and unable to handle large volumes. Furthermore, operators are susceptible to infection from prolonged contact with rotting food waste, and the labor costs are prohibitively high. This invention proposes a food waste sorting machine capable of multi-stage filtration and classified collection. Summary of the Invention
[0004] The purpose of this utility model is to provide a food waste sorting machine that automatically sorts and collects food waste in categories, facilitating subsequent recycling.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A food waste sorting machine includes a sorting box with a feed inlet at the top. Inside the sorting box are a first sorting mechanism and a second sorting mechanism. The first sorting mechanism is located above the second sorting mechanism, with its feed end below the feed inlet. The feed end of the second sorting mechanism is located below the first sorting mechanism. A crushing mechanism and a first collection box are located between the discharge end of the first sorting mechanism and the feed end of the second sorting mechanism. The discharge end of the second sorting mechanism has a second collection box and a third collection box. The first, second, and third collection boxes are all pull-out connected to the sorting box and are used to collect different substances from the food waste.
[0007] As a preferred technical solution, the first sorting mechanism includes a first filter plate and a first guide plate. Both the first filter plate and the first guide plate are inclinedly arranged inside the sorting box. The first guide plate is located below the first filter plate. The first filter plate has a plurality of filter openings. The lower end of the first filter plate has a first discharge port. The upper surface of the first filter plate has two first baffles on both sides. The two first baffles are funnel-shaped. The leakage end of the funnel-shaped baffles is connected to the first discharge port. The lower end of the first guide plate has a second discharge port. The second discharge port has second baffles on both sides for blocking food waste.
[0008] As a preferred technical solution, each row of filter ports is provided with a guide strip at its higher end, with the side of the guide strip closer to the filter port being higher than the side farther away from the filter port.
[0009] As a preferred technical solution, the sorting box is provided with an L-shaped support plate, the support plate is provided with a crushing mechanism and a first collection box, the first collection box is located below the first discharge port, the first collection box is slidably connected to the support plate, and the crushing mechanism is located below the second discharge port.
[0010] As a preferred technical solution, the crushing mechanism includes a crushing cylinder and a crushing component disposed inside the crushing cylinder. The crushing cylinder is located below the second discharge port, and the bottom of the crushing cylinder has an opening for discharge. An electric control switch is provided at the opening. The crushing component includes a rotating shaft, several blades, and a motor. The top of the rotating shaft is rotatably connected to the top of the sorting box. The several blades are fixedly disposed on the outer surface of the rotating shaft. The motor is fixedly disposed on the top of the sorting box, and the drive end of the motor passes through the sorting box and is fixedly connected to the top of the rotating shaft.
[0011] As a preferred technical solution, the first collection box is provided with a compression assembly, which includes a push plate and a cylinder. The push plate is slidably disposed in the first collection box, and the cylinder is disposed between the push plate and the side wall of the first collection box. One end of the cylinder is hinged to the push plate, and the other end of the cylinder is hinged to the side wall of the first collection box.
[0012] As a preferred technical solution, the second sorting mechanism includes a second filter plate and a second guide plate. Both the second filter plate and the second guide plate are inclinedly arranged inside the sorting box. The second filter plate is located above the second guide plate. A third discharge port is provided at the lower end of the second filter plate. Third baffles for blocking food waste are provided on both sides of the third discharge port. A fourth discharge port is provided at the lower end of the second guide plate. Fourth baffles for blocking food waste are provided on both sides of the fourth discharge port.
[0013] As a preferred technical solution, the second collection box is located below the third discharge port, and the third collection box is located below the fourth discharge port.
[0014] Compared with the prior art, this utility model has the following advantages:
[0015] In this utility model, the sorting box is equipped with a first sorting mechanism and a second sorting mechanism. The first sorting mechanism and the second sorting mechanism work together to filter food waste. The first sorting mechanism separates small-sized waste from large-sized waste in the food waste, and the second sorting mechanism separates solids from liquids. It can separate plastic bottles and disposable tableware, as well as solid waste and liquids in food waste, and collect them in categories for easy subsequent processing and utilization.
[0016] This invention includes a crushing mechanism that can crush small-sized waste after filtration. The crushed food residue is more likely to release its internal liquid and is easier to separate into solid and liquid components. In subsequent treatments such as composting, incineration power generation, or bioconversion, the small particles of food waste decompose faster, which can significantly shorten the treatment cycle and improve the treatment quality.
[0017] In this invention, the first collection box is equipped with a compression component. The crushing component can compress the plastic bottles and disposable tableware in the first collection box to reduce their volume, making it easier for subsequent transportation and processing, and significantly reducing transportation costs. Attached Figure Description
[0018] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings:
[0019] Figure 1 This is a schematic diagram of the structure of the present utility model. Figure 1 ;
[0020] Figure 2 This is a cross-sectional view of the present invention;
[0021] Figure 3 This is a schematic diagram of the structure of the present utility model. Figure 2 ;
[0022] Figure 4 This is a cross-sectional view of the first collection box of this utility model;
[0023] Figure 5 This is a schematic diagram of the crushing mechanism of this utility model;
[0024] The reference numerals in the attached figures are as follows:
[0025] 1-Sorting box, 11-Feed inlet, 2-First filter plate, 21-Filter port, 22-Guide strip, 23-First baffle, 24-First discharge port, 3-First guide plate, 31-Second baffle, 32-Second discharge port, 4-Support plate, 5-First collection box, 51-Push plate, 52-Cylinder, 6-Crushing cylinder, 61-Rotating shaft, 62-Blade, 63-Motor, 7-Second filter plate, 71-Third baffle, 72-Third discharge port, 8-Second guide plate, 81-Fourth baffle, 82-Fourth discharge port, 9-Second collection box, 10-Third collection box. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0028] In the description of this application, it should be noted that the use of terms such as "center," "upper," "lower," "inner," and "outer" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product is in use. These are used solely for the convenience of describing this application and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Example
[0029] like Figure 1-5 As shown, a food waste sorting machine includes a sorting box 1 with an inlet 11 at the top. Food waste enters the sorting box 1 through the inlet 11. The box contains a first sorting mechanism and a second sorting mechanism. The first sorting mechanism is located above the second sorting mechanism, with its inlet located below the inlet 11 and its inlet located below the outlet of the first sorting mechanism. The first and second sorting mechanisms filter the food waste. The first sorting mechanism separates large and small waste from the food waste, while the second sorting mechanism separates the solids and liquids from the separated food waste.
[0030] A crushing mechanism and a first collection box 5 are provided between the discharge end of the first sorting mechanism and the feed end of the second sorting mechanism. The crushing mechanism crushes the small-sized waste after separation, and the first collection box 5 collects the large-sized waste. The discharge end of the second sorting mechanism is provided with a second collection box 9 and a third collection box 10. The second collection box 9 collects solid waste, and the third collection box 10 collects liquids. The first collection box 5, the second collection box 9, and the third collection box 10 are all connected to the sorting box 1 by a pull-out mechanism.
[0031] The large-sized waste mentioned above refers to plastic bottles and disposable tableware, while small-sized waste refers to food scraps, bottle caps, broken glass, and shredded paper. The first sorting unit separates plastic bottles and disposable tableware for separate collection, while food scraps, bottle caps, broken glass, and shredded paper are further broken into smaller particles during subsequent crushing. This ensures that the particle size of bottle caps, broken glass, and shredded paper is smaller than the standard specified particle size for composting impurities, greatly reducing the impact of impurities on subsequent composting.
[0032] The first sorting mechanism includes a first filter plate 2 and a first guide plate 3. Both the first filter plate 2 and the first guide plate 3 are inclinedly arranged in the sorting box 1. The first guide plate 3 is located below the first filter plate 2. The first filter plate 2 has several filter openings 21. The size of the filter openings 21 is set to allow small-sized waste to pass through, while larger plastic bottles and disposable lunch boxes cannot pass through. The lower end of the first filter plate 2 has a first discharge port 24. The upper surface of the first filter plate 2 has two first baffles 23 on both sides. The two first baffles 23 are funnel-shaped, and the leakage end of the funnel is connected to the first discharge port 24. The first baffles 23 play a guiding role, so that the plastic bottles and disposable lunch boxes on the first filter plate 2 can be gathered at the first discharge port 24. The lower end of the first guide plate 3 has a second discharge port 32. The second discharge port 32 has second baffles 31 on both sides to block food waste, ensuring that small-sized waste will not be discharged from areas outside the second discharge port 32. When food waste enters the first filter plate 2, larger plastic bottles and disposable lunch boxes cannot pass through the filter port 21 and slide down the first filter plate 2. They enter the first collection box 5 through the first discharge port 24 and are collected. Smaller waste can fall through the filter port 21 onto the first guide plate 3 below, slide down the first guide plate 3, and enter the crushing mechanism through the second discharge port 32.
[0033] The first discharge port 24 and the second discharge port 32 are staggered, that is, the first discharge port 24 is located diagonally above the second discharge port 32, ensuring that the discharge from the first discharge port 24 and the second discharge port 32 will not affect or mix with each other.
[0034] In some feasible embodiments, each row of filter ports 21 is provided with a guide strip 22 at its higher end. The side of the guide strip 22 closer to the filter port 21 is higher than the side farther away from the filter port 21. The guide strip 22 causes food waste to be lifted up before passing through the filter port 21, so as to avoid some long plastic bottles with small cross-sections from getting stuck in the filter port 21 when the length direction is consistent with the downward direction when they slide down the first filter plate 2, causing blockage.
[0035] The sorting box 1 is equipped with an L-shaped support plate 4. The support plate 4 is equipped with a crushing mechanism and a first collection box 5. The first collection box 5 is located below the first discharge port 24 and is slidably connected to the support plate 4. The crushing mechanism is located below the second discharge port 32.
[0036] The crushing mechanism includes a crushing cylinder 6 and crushing components disposed within the crushing cylinder 6. The crushing cylinder 6 is located below the second discharge port 32. The bottom of the crushing cylinder 6 has an opening for discharge. The support plate 4 at the bottom of the crushing cylinder 6 has a matching hole for the opening. An electric control switch is provided at the opening to control the opening and closing of the opening. During the crushing process, the opening is in a closed state. After the crushing is completed, the opening is in an open state, allowing small-sized waste to smoothly enter the second sorting mechanism for filtration. The crushing components include a rotating shaft 61, several blades 62, and a motor 63. The top of the rotating shaft 61 is rotatably connected to the top of the sorting box 1. Several blades 62 are fixedly disposed on the outer surface of the rotating shaft 61. The motor 63 is fixedly disposed on the top of the sorting box 1. The drive end of the motor 63 passes through the sorting box 1 and is fixedly connected to the top of the rotating shaft 61. The motor 63 drives the rotating shaft 61 to rotate, and the rotating shaft 61 drives several blades 62 to rotate and crush. The crushed food residue is more likely to release the internal liquid and is easier to separate solid and liquid. In subsequent treatments such as composting, incineration power generation or bioconversion, the small particles of food waste decompose faster, which can significantly shorten the treatment cycle and improve the treatment quality.
[0037] In some feasible embodiments, a compression assembly is provided inside the first collection box 5. The compression assembly includes a push plate 51 and a cylinder 52. The push plate 51 is slidably disposed inside the first collection box 5, and the cylinder 52 is disposed between the push plate 51 and the side wall of the first collection box 5. One end of the cylinder 52 is hinged to the push plate 51, and the other end of the cylinder 52 is hinged to the side wall of the first collection box 5. The extension and retraction of the cylinder 52 can push the push plate 51 to move inside the first collection box 5. The movement of the push plate 51 can compress the plastic bottles and disposable lunch boxes inside the first collection box 5, reducing their volume and facilitating subsequent collection.
[0038] Furthermore, the push plate 51 has several spikes on the side where it contacts the plastic bottle and the disposable lunch box. These spikes can pierce the plastic bottle, making it easier to expel the air inside the plastic bottle. This makes the plastic bottle more easily deformable under external pressure, thereby reducing its volume.
[0039] The second sorting mechanism includes a second filter plate 7 and a second guide plate 8. Both the second filter plate 7 and the second guide plate 8 are inclinedly arranged inside the sorting box 1. The second filter plate 7 is located above the second guide plate 8. The second filter plate 7 has several filter holes for liquid to pass through. The lower end of the second filter plate 7 has a third discharge port 72. The third discharge port 72 has third baffles 71 on both sides to block food waste, ensuring that solid waste will not be discharged from areas other than the third discharge port 72. The lower end of the second guide plate 8 has a fourth discharge port 82. The fourth discharge port 82 has fourth baffles 81 on both sides to block food waste, ensuring that liquid will not be discharged from areas other than the fourth discharge port 82. The second collection box 9 is located below the third discharge port 72, and the third collection box 10 is located below the fourth discharge port 82. After being filtered, small-sized waste enters the crushing cylinder 6 and is crushed, then falls onto the second filter plate 7. Solid waste slides down the second filter plate 7 and enters the second collection box 9 through the third discharge port 72 for collection. Liquid passes through the second filter plate 7 and falls onto the second guide plate 8, slides down the second guide plate 8, and enters the third collection box 10 through the fourth discharge port 82 for collection.
[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art. The various embodiments of this disclosure have been described in detail above. To avoid obscuring the concept of this disclosure, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description. The scope of this disclosure is defined by the appended claims.
Claims
1. A food waste sorting machine, comprising a sorting bin (1), wherein the top of the sorting bin (1) is provided with a feed inlet (11), characterized in that, The sorting box (1) is equipped with a first sorting mechanism and a second sorting mechanism. The first sorting mechanism is located above the second sorting mechanism. The feeding end of the first sorting mechanism is located below the feeding port (11). The feeding end of the second sorting mechanism is located below the first sorting mechanism. A crushing mechanism and a first collection box (5) are provided between the discharge end of the first sorting mechanism and the feeding end of the second sorting mechanism. The discharge end of the second sorting mechanism is equipped with a second collection box (9) and a third collection box (10). The first collection box (5), the second collection box (9) and the third collection box (10) are all connected to the sorting box (1) by a pull-out method and are used to collect different substances in food waste.
2. The food waste sorting machine according to claim 1, characterized in that, The first sorting mechanism includes a first filter plate (2) and a first guide plate (3). The first filter plate (2) and the first guide plate (3) are both inclinedly arranged in the sorting box (1). The first guide plate (3) is located below the first filter plate (2). The first filter plate (2) has several filter ports (21). The lower end of the first filter plate (2) is provided with a first discharge port (24). The upper surface of the first filter plate (2) is provided with first baffles (23) on both sides. The two first baffles (23) are funnel-shaped. The leakage end of the funnel-shaped baffle is connected to the first discharge port (24). The lower end of the first guide plate (3) is provided with a second discharge port (32). The second discharge port (32) is provided with second baffles (31) on both sides for blocking food waste.
3. The food waste sorting machine according to claim 2, characterized in that, Each row of filter ports (21) has a guide strip (22) at its higher end, with the side of the guide strip (22) closer to the filter port (21) higher than the side farther away from the filter port (21).
4. The food waste sorting machine according to claim 1, characterized in that, The sorting box (1) is provided with an L-shaped support plate (4), and the support plate (4) is provided with a crushing mechanism and a first collection box (5). The first collection box (5) is located below the first discharge port (24). The first collection box (5) is slidably connected to the support plate (4), and the crushing mechanism is located below the second discharge port (32).
5. The food waste sorting machine according to claim 1, characterized in that, The crushing mechanism includes a crushing cylinder (6) and a crushing component disposed inside the crushing cylinder (6). The crushing cylinder (6) is disposed below the second discharge port (32). The bottom of the crushing cylinder (6) is provided with an opening for discharge. An electric control switch is provided at the opening. The crushing component includes a rotating shaft (61), several blades (62) and a motor (63). The top of the rotating shaft (61) is rotatably connected to the top of the sorting box (1). The several blades (62) are fixedly disposed on the outer surface of the rotating shaft (61). The motor (63) is fixedly disposed on the top of the sorting box (1). The drive end of the motor (63) passes through the sorting box (1) and is fixedly connected to the top of the rotating shaft (61).
6. The food waste sorting machine according to claim 1, characterized in that, The first collection box (5) is provided with a compression assembly, which includes a push plate (51) and a cylinder (52). The push plate (51) is slidably disposed in the first collection box (5), and the cylinder (52) is disposed between the push plate (51) and the side wall of the first collection box (5). One end of the cylinder (52) is hinged to the push plate (51), and the other end of the cylinder (52) is hinged to the side wall of the first collection box (5).
7. The food waste sorting machine according to claim 1, characterized in that, The second sorting mechanism includes a second filter plate (7) and a second guide plate (8). The second filter plate (7) and the second guide plate (8) are both inclinedly arranged in the sorting box (1). The second filter plate (7) is located above the second guide plate (8). The lower end of the second filter plate (7) is provided with a third discharge port (72). The third discharge port (72) is provided with third baffles (71) on both sides for blocking food waste. The lower end of the second guide plate (8) is provided with a fourth discharge port (82). The fourth discharge port (82) is provided with fourth baffles (81) on both sides for blocking food waste.
8. The food waste sorting machine according to claim 1, characterized in that, The second collection box (9) is located below the third discharge port (72), and the third collection box (10) is located below the fourth discharge port (82).