Sorting device based on solid waste
By designing a sorting device consisting of a spiral chute, a filter cylinder, and a crushing roller, the problems of solid waste resource waste and pollution have been solved, and efficient resource recycling has been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING CHEM INDL PARK TIANYU SOLID WASTE DISPOSAL CO LTD
- Filing Date
- 2025-03-19
- Publication Date
- 2026-04-14
AI Technical Summary
Existing technologies for treating solid waste involve resource waste and potential pollution risks, and are difficult to efficiently separate metals and plastics, leading to land occupation and environmental pollution problems.
A sorting device was designed, including a spiral chute, a filter cylinder, a crushing roller, and a sorting plate. Through the screening of the filter holes of the spiral chute, the crushing of the crushing roller, and the separation of material density by the sorting plate, multi-stage separation and resource recycling of solid waste can be achieved.
It has improved resource utilization, reduced the amount of waste going to landfills and incinerating, and achieved efficient separation of solid waste and recycling of renewable resources.
Smart Images

Figure CN224114587U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of solid waste treatment technology, specifically a sorting device for solid waste. Background Technology
[0002] Solid waste includes household waste, commercial waste, and construction waste. If large amounts of solid waste are not properly treated, they will occupy a lot of land resources and may also pollute soil and groundwater through leachate, release harmful gases, and pose a serious threat to the environment and human health.
[0003] An investigation revealed that a Chinese utility model patent (publication number: CN211802990U) discloses a solid waste sorting device, including a sorting cylinder, a feeding port, and support columns. The feeding port is embedded at the bottom of the sorting cylinder, and four support columns are welded to the outside of the feeding port. A discharge pipe is embedded at the lower right side of the sorting cylinder, and a crushing device is fixedly installed at the top center of the sorting cylinder. This utility model utilizes an incinerator and stirring rollers. Based on the different melting points of metals and plastics, the incinerator burns the solid waste at high temperature, causing the plastic waste to be burned into gas. This gas is then purified through a duct and filtered by an exhaust gas filter before being discharged, facilitating the separation of metals from plastics in the solid waste mixture and allowing for the extraction and sorting of the metals from the waste.
[0004] Although the aforementioned patent facilitates the separation of metals and plastics in a mixture of solid wastes by using an incinerator and stirring rods, and allows for the extraction and sorting of metals from the waste, the increasing generation of solid waste and reliance on landfill and incineration not only poses a pollution hazard to soil, air, and groundwater when faced with large amounts of garbage, but also results in the waste that can be utilized being landfilled or incinerated, causing huge waste of resources and economic losses.
[0005] Therefore, this utility model provides a sorting device for solid waste to solve the above problems. Utility Model Content
[0006] This invention provides a sorting device for solid waste, which aims to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution: It includes a frame, a side frame fixedly mounted on one side of the frame, a servo motor fixedly mounted on the upper surface of the side frame, a connecting gear fixedly mounted on one output end of the servo motor, a chain movably sleeved on the outer arc surface of the connecting gear, a connecting shaft fixedly mounted on one side surface of the connecting gear, a spiral chute fixedly mounted on the outer arc surface of the connecting shaft, a filter cylinder movably sleeved on the outer arc surface of the spiral chute, a convex mesh body provided on one side of the outer arc surface of the filter cylinder, a mesh body provided on the side of the filter cylinder near the convex mesh body, filter holes provided on the outer arc surfaces of both the mesh body and the convex mesh body, and a ring gear fixedly mounted at the edge of one side of the outer arc surface of the spiral chute.
[0008] As a preferred technical solution of this application, the outer arc surface of the ring gear is meshed with a drive gear at the sawtooth part, and the bottom of the outer arc surface of the filter cylinder is provided with a sorting plate. The number of sorting plates is several, and the several sorting plates are all placed at the bottom of the outer arc surface of the filter cylinder.
[0009] As a preferred technical solution of this application, partitions are fixedly installed on both sides of the sorting plate, one side of the drive gear is movably connected to the surface of the partition, the sorting plate is fixedly installed on the frame by bolts, and a hinge rod is fixedly installed at one end of the connecting rod.
[0010] As a preferred technical solution of this application, a crushing roller is fixedly installed on the side of the hinge rod away from the connecting rod. The outer arc surface of the crushing roller is in close contact with the filter cylinder. The outer arc surface of the crushing roller is provided with a conical head, and the conical head of the crushing roller is adapted to the filter hole.
[0011] As a preferred technical solution of this application, a diversion box is fixedly installed on the top of the outer arc surface of the connecting rod, a baffle is provided in the middle of the upper surface of the diversion box, and a winding protrusion is provided on the side of the diversion box near the baffle.
[0012] As a preferred technical solution of this application, a connecting surface is provided on one side of the diversion box body, and a first expansion pipe and a second expansion pipe are connected through one side of the connecting surface. Both the first expansion pipe and the second expansion pipe are placed on the surface of the spiral chute.
[0013] Beneficial effects
[0014] 1. The filter cartridge can accommodate larger solid waste, allowing it to fall out of the filter cartridge through the filter holes. After the initial screening, smaller solid waste that falls onto the sorting plate will be further separated in the subsequent multi-stage sorting structure according to its material, density, and other characteristics. Meanwhile, larger solid waste that falls from the filter holes of the larger mesh body will have its size reduced and will re-enter the sorting process to achieve more complete resource recycling. Various resources in solid waste can be separated and recycled to the maximum extent, improving resource utilization and reducing the amount of waste that ultimately needs to be landfilled or incinerated.
[0015] 2. The waste materials are efficiently crushed by crushing rollers and sorting plates, reducing their size before falling into the sorting plates. After being crushed, the waste materials can be more easily and accurately separated on the sorting plates according to their material, density and other characteristics. Larger solid wastes are separated into different types of materials, which are then collected and transported to the corresponding recycling plants, realizing the transformation of solid waste into recycled resources. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall side view of a sorting device for solid waste;
[0017] Figure 2 This is a schematic diagram of a structure in a solid waste sorting device where a filter cylinder is connected to a spiral chute.
[0018] Figure 3 This is a schematic diagram of a diversion box structure based on a solid waste sorting device;
[0019] Figure 4 This is a schematic diagram showing the internal cross-sectional structure of a solid waste sorting device.
[0020] Figure 5 This is a schematic diagram of the overall front structure of a sorting device for solid waste.
[0021] In the picture:
[0022] 1. Frame; 101. Side frame; 2. Servo motor; 3. Connecting gear; 4. Chain; 5. Connecting shaft; 6. Spiral chute; 7. Filter cylinder; 701. Outwardly convex mesh; 702. Mesh body; 703. Filter holes; 8. Ring gear; 9. Drive gear; 10. Sorting plate; 11. Hinge rod; 12. Crushing roller; 13. Diverter box; 131. Baffle; 132. Winding protrusion; 133. Connecting surface; 134. First expansion tube; 135. Second expansion tube. Detailed Implementation
[0023] 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.
[0024] This utility model provides a sorting device, such as... Figures 1 to 5 As shown, the device includes a frame 1, a side frame 101 fixedly mounted on one side of the frame 1, a servo motor 2 fixedly mounted on the upper surface of the side frame 101, a connecting gear 3 fixedly mounted on one output end of the servo motor 2, a chain 4 movably sleeved on the outer arc surface of the connecting gear 3, a connecting shaft 5 fixedly mounted on one side surface of the connecting gear 3, a spiral chute 6 fixedly mounted on the outer arc surface of the connecting shaft 5, a filter cylinder 7 movably sleeved on the outer arc surface of the spiral chute 6, and a convex mesh 7 provided on one side of the outer arc surface of the filter cylinder 7. 01. A mesh body 702 is provided on the side of the filter cylinder 7 near the convex mesh body 701. Filter holes 703 are opened on the outer arc surface of both the mesh body 702 and the convex mesh body 701. A ring gear 8 is fixedly installed on one edge of the outer arc surface of the spiral chute 6. A drive gear 9 is meshed with the sawtooth part of the outer arc surface of the ring gear 8. A sorting plate 10 is provided at the bottom of the outer arc surface of the filter cylinder 7. There are several sorting plates 10, and several sorting plates 10 are placed at the bottom of the outer arc surface of the filter cylinder 7.
[0025] Workers only need to place solid waste in an orderly manner at the feed end of the conveyor belt, and the conveyor belt will automatically and efficiently transport the solid waste to the feed end of the filter cylinder 7 under the stable drive of the conveyor rollers. This reduces the labor intensity of the workers and avoids the inconvenience and difficulty of manually carrying solid waste to the feed end of the filter cylinder 7, which is located at a higher position.
[0026] Once solid waste enters the filter cylinder 7, due to the specific tilt angle of the filter cylinder 7, the solid waste rolls along the circumference of the filter cylinder 7 while automatically moving slowly along the axial direction of the filter cylinder 7. It is worth mentioning that the filter holes 703 of the filter cylinder 7 gradually increase in size along its axial direction, and the convex mesh 701 is corrugated. This structure increases its contact area with the solid waste, significantly increasing the resistance encountered by the solid waste as it moves along the axial direction of the filter cylinder 7. As a result, smaller solid waste is more easily... The solid waste easily falls out of the filter cylinder 7 through the filter holes 703 of the convex mesh 701 and is then fed into the sorting plate 10 through the initial waste channel. At the same time, the speed at which the solid waste moves along the circumference of the convex mesh 701 also increases. This means that smaller solid waste can pass through more filter holes 703 of the convex mesh 701, further improving the screening efficiency. Meanwhile, the internal spiral chute 6 rotates synchronously with the filter cylinder 7 under the drive of the gear 3. This coordinated operation makes it easier for smaller solid waste to fall out of the filter cylinder 7 smoothly through the filter holes.
[0027] In contrast, larger solid waste, due to its larger size than the filter holes 703 of the convex mesh 701, cannot fall through them. Instead, it continues to move automatically along its axis within the filter cylinder 7 until it reaches the larger mesh body 702 area. The filter holes 703 are larger enough to accommodate the passage of larger solid waste, allowing it to fall out of the filter cylinder 7. After the initial screening, smaller solid waste that falls onto the sorting plate 10 will be further separated in subsequent multi-stage sorting structures based on its material, density, and other characteristics. Meanwhile, the larger solid waste that falls from the filter holes 703 of the larger mesh body 702 will have its size reduced before re-entering the sorting process to achieve more efficient resource recycling. This maximizes the separation and recycling of various resources in solid waste, improves resource utilization, and reduces the amount of waste that ultimately needs to be landfilled or incinerated.
[0028] Both sides of the sorting plate 10 are fixedly installed with partitions. One side of the drive gear 9 is movably connected to the surface of the partition. The sorting plate 10 is fixedly installed on the frame 1 by bolts. One end of the connecting rod 5 is fixedly installed with a hinge rod 11. The side of the hinge rod 11 away from the connecting rod 5 is fixedly installed with a crushing roller 12. The outer arc surface of the crushing roller 12 is in close contact with the filter cylinder 7. The outer arc surface of the crushing roller 12 is provided with a conical head. The conical head of the crushing roller 12 is adapted to the filter hole 703. The top of the outer arc surface of the connecting rod 5 is fixedly installed with a diversion box 13. The middle of the upper surface of the diversion box 13 is provided with a baffle 131. The side of the diversion box 13 near the baffle 131 is provided with a winding protrusion 132. One side of the diversion box 13 is provided with a connecting surface 133. The first expansion tube 134 and the second expansion tube 135 are connected through one side of the connecting surface 133. The first expansion tube 134 and the second expansion tube 135 are both placed on the surface of the spiral chute 6.
[0029] During equipment installation, the diversion box 13 is securely connected to the central column of the spiral chute 6. When a large amount of solid waste continuously flows into the diversion box 13, the baffle 131 on the diversion box 13 effectively prevents the waste from accidentally falling out of the spiral chute 6, ensuring the orderliness and stability of the entire processing flow. The unique "S"-shaped flow channel inside the diversion box 13 can clamp individual larger and harder solid wastes, playing a significant buffering role for these hard materials. In this way, the risk of impact damage to the internal components of the equipment by hard materials is reduced.
[0030] As the waste material falls continuously, the connecting rod 5 rotates steadily before it falls into the sorting plate 10. Driven by this, the hinge rod 11 drives the crushing roller 12 to rotate around the surface of the filter cylinder 7. When large-diameter waste material passes through, the crushing roller 12 quickly performs its crushing function, efficiently crushing the waste material to reduce its size before it falls into the sorting plate 10. The crushed waste material can be more easily and accurately separated on the sorting plate 10 according to its material, density and other characteristics.
[0031] On the sorting plate 10, the magnetic separator can strongly adsorb the mixed metal substances, realizing the efficient recycling of metal resources. The wind-powered sorting equipment cleverly separates the lightweight plastics, paper and other materials from the heavy inorganic particles by utilizing the density difference of different materials. The larger solid waste that falls from the filter holes 703 of the larger mesh body 702 will be collected separately after sorting and transported to the corresponding recycling plant, realizing the practice of turning solid waste into recycled resources.
[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A sorting device for solid waste, comprising a frame (1), characterized in that: A side frame (101) is fixedly installed on one side of the frame (1). A servo motor (2) is fixedly installed on the upper surface of the side frame (101). A connecting gear (3) is fixedly installed on one side of the output end of the servo motor (2). A chain (4) is movably sleeved on the outer arc surface of the connecting gear (3). A connecting shaft (5) is fixedly installed on one side surface of the connecting gear (3). A spiral chute (6) is fixedly installed on the outer arc surface of the connecting shaft (5). A filter cylinder (7) is movably sleeved on the outer arc surface of the spiral chute (6). A convex mesh (701) is provided on one side of the outer arc surface of the filter cylinder (7). A mesh body (702) is provided on the side of the filter cylinder (7) close to the convex mesh (701). Filter holes (703) are opened on the outer arc surfaces of both the mesh body (702) and the convex mesh (701). A ring gear (8) is fixedly installed at the edge of one side of the outer arc surface of the spiral chute (6).
2. The solid waste sorting device according to claim 1, characterized in that: The outer arc surface of the ring gear (8) is meshed with the drive gear (9), and the bottom of the outer arc surface of the filter cylinder (7) is provided with a sorting plate (10). There are several sorting plates (10), and all of the sorting plates (10) are placed at the bottom of the outer arc surface of the filter cylinder (7).
3. A sorting device for solid waste according to claim 2, characterized in that: Both sides of the sorting plate (10) are fixedly installed with partitions. One side of the drive gear (9) is movably connected to the surface of the partition. The sorting plate (10) is fixedly installed on the frame (1) by bolts. One end of the connecting rod (5) is fixedly installed with a hinge rod (11).
4. A solid waste sorting device according to claim 3, characterized in that: A crushing roller (12) is fixedly installed on the side of the hinge rod (11) away from the connecting rod (5). The outer arc surface of the crushing roller (12) is in close contact with the filter cylinder (7). The outer arc surface of the crushing roller (12) is provided with a conical head. The conical head of the crushing roller (12) is adapted to the filter hole (703).
5. A sorting device for solid waste according to claim 4, characterized in that: A diversion box (13) is fixedly installed on the top of the outer arc surface of the connecting rod (5). A baffle (131) is provided in the middle of the upper surface of the diversion box (13). A winding protrusion (132) is provided on the side of the diversion box (13) near the baffle (131).
6. A solid waste sorting device according to claim 5, characterized in that: The diversion box (13) has a connecting surface (133) on one side. A first expansion pipe (134) and a second expansion pipe (135) are connected through one side of the connecting surface (133). The first expansion pipe (134) and the second expansion pipe (135) are both placed on the surface of the spiral chute (6).
Citation Information
Patent Citations
Sorting device based on solid waste
CN211802990U