Efficient pre-sorting system for construction waste
By combining screening and air separation modules, the efficient separation of slag, lightweight materials and coarse aggregates in construction waste is achieved, solving the problems of low production capacity and high transportation costs in the resource-based disposal of construction waste, and providing an environmentally friendly treatment solution with low noise and no dust.
Patent Information
- Application Number
- CN202423142746.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-19
AI Technical Summary
The presence of slag and lightweight materials in construction waste results in low production capacity of recycled aggregates in resource recovery production lines, high transportation costs, and poor economic benefits.
The high-efficiency pre-sorting system for construction waste, consisting of screening and air separation modules, includes a vibrating feeder, stepped screen, bucket elevator, and box-type air separator. It separates slag, light materials, and coarse aggregates, and transfers them via belt conveyor units. The equipment is equipped with protective covers for waterproofing, heat preservation, sound insulation, and dust suppression.
It has increased the capacity for resource-based disposal of construction waste, reduced transportation costs, and achieved environmentally friendly treatment with low noise and no dust, making it suitable for open-air, low-temperature environments.
Smart Images

Figure CN223530867U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of construction waste disposal technology, and in particular to a high-efficiency pre-sorting system for construction waste. Background Technology
[0002] Because construction waste contains a lot of slag and lightweight materials, these two types of materials must be removed first during the processing of resource recycling production lines. As a result, the production capacity of recycled aggregate, the main product of resource recycling production lines, is generally low. In addition, the transportation cost of construction waste raw materials containing a lot of slag and lightweight materials is high, resulting in low overall economic benefits. Utility Model Content
[0003] To address the above problems, this utility model provides a high-efficiency pre-sorting system for construction waste.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: a high-efficiency pre-sorting system for construction waste, characterized in that it includes a screening module, an air separation module, and a belt conveyor unit. The screening module includes a vibrating feeder, a feeding hopper, and a stepped screen. The bottom of the screening module is connected to a slag chute and a screening chute, respectively. The air separation module includes a bucket elevator, an air separation chute, and a box-type air separator. The bottom of the air separation module is connected to a light material chute and an aggregate chute, respectively. The belt conveyor unit includes belt conveyor one, belt conveyor two, belt conveyor three, and belt conveyor four.
[0005] Preferably, the slag chute is located to the left of the screening chute, the slag chute is connected to one end of belt conveyor three, the screening chute is connected to one end of belt conveyor four, the other end of belt conveyor four is connected to the feed hopper, the light material chute is located to the right of the aggregate chute, the light material chute is connected to one end of belt conveyor one, and the aggregate chute is connected to one end of belt conveyor two.
[0006] Preferably, the feeding hopper is fixed above the vibrating feeder, an inspection port is provided on the right side of the feeding hopper, and the stepped screen is located on the right side of the vibrating feeder.
[0007] Preferably, the feed hopper is fixed to the left side wall of the bottom end of the bucket elevator, the inlet of the air classifier chute is connected to the right side of the top end of the bucket elevator, and the outlet of the air classifier chute is connected to a box-type air classifier.
[0008] Preferably, the box-type air classifier includes a feeding roller, a fan, and a belt conveyor. The belt conveyor is located below the outlet of the air classifier chute, the fan is located to the lower left of the belt conveyor, and the feeding roller is located at the right end of the belt conveyor.
[0009] Preferably, the belt conveyor unit is fixed on the support.
[0010] Preferably, belt conveyors one, two, three and four are equipped with protective covers.
[0011] Preferably, belt conveyor one, belt conveyor four, and belt conveyor three are on the same horizontal line, and belt conveyor two is perpendicular to belt conveyor one, belt conveyor four, and belt conveyor three.
[0012] Preferably, the screening module and the air separation module are located inside a container, and the container is equipped with an inspection door.
[0013] Compared with existing technologies, the beneficial effects of this utility model are as follows: This utility model can pre-sort construction waste into three materials: slag, lightweight materials, and coarse aggregate. Slag and lightweight materials can be directly disposed of on-site, while coarse aggregate is transported to conventional construction waste recycling production lines for disposal, solving the problems of generally low capacity of recycled aggregate and high transportation costs of construction waste raw materials in conventional production lines; This utility model adopts modular integration and can be installed in the open air at the construction waste production site, solving the problems of large investment, long construction period, and high site requirements for on-site installation of conventional construction waste recycling production lines; All equipment is equipped with protective covers, effectively achieving waterproofing, heat preservation, sound insulation, and dust suppression, ensuring the reliable use of the high-efficiency pre-sorting system for construction waste in open-air and low-temperature environments, while achieving low noise and no dust, avoiding noise and dust pollution to the environment; This utility model is equipped with inspection ports and doors for convenient inspection, maintenance, and observation of operation. Attached Figure Description
[0014] Figure 1 This is a structural schematic diagram of a high-efficiency pre-sorting system for construction waste according to the present invention.
[0015] Figure 2 This is a top view of a high-efficiency pre-sorting system for construction waste according to this utility model.
[0016] Figure 3 This is a cross-sectional view (AA) of a high-efficiency pre-sorting system for construction waste according to this utility model.
[0017] Figure 4 This is a BB cross-sectional view of a high-efficiency pre-sorting system for construction waste according to this utility model.
[0018] Attached diagram descriptions: 1. Screening module, 11. Vibrating feeder, 12. Feeding hopper, 13. Inspection port, 14. Step screen, 15. Slag chute, 16. Screening chute, 2. Air classifier module, 21. Bucket elevator, 211. Feed hopper, 22. Air classifier chute, 23. Box-type air classifier, 231. Feed roller, 232. Fan, 233. Belt conveyor five, 24. Light material chute, 25. Aggregate chute, 3. Belt conveyor one, 4. Belt conveyor two, 5. Belt conveyor three, 6. Protective cover, 7. Container, 71. Inspection door, 8. Belt conveyor four, 9. Belt conveyor unit, 91. Support frame. Detailed Implementation
[0019] To provide a better understanding of the purpose, structure, features, and functions of this utility model, detailed descriptions are provided below with reference to specific embodiments.
[0020] Please refer to the reference. Figure 1 , Figure 2 , Figure 3 and Figure 4 This utility model discloses an efficient pre-sorting system for construction waste, characterized in that it includes a screening module 1, an air separation module 2, and a belt conveyor unit 9. The screening module 1 includes a vibrating feeder 11, a feeding hopper 12, and a stepped screen 14. The bottom of the screening module 1 is connected to a slag chute 15 and a screening chute 16, respectively. The air separation module 2 includes a bucket elevator 21, an air separation chute 22, and a box-type air separator 23. The bottom of the air separation module 2 is connected to a light material chute 24 and an aggregate chute 25, respectively. The belt conveyor unit 9 includes a first belt conveyor 3, a second belt conveyor 4, a third belt conveyor 5, and a fourth belt conveyor 8.
[0021] In one embodiment, such as Figure 3 and Figure 4 As shown, the slag chute 15 is located to the left of the screening chute 16. The slag chute 15 is connected to one end of the belt conveyor 3 5. The screening chute 16 is connected to one end of the belt conveyor 4 8. The other end of the belt conveyor 4 8 is connected to the feed hopper 211. The light material chute 24 is located to the right of the aggregate chute 25. The light material chute 24 is connected to one end of the belt conveyor 1 3. The aggregate chute 25 is connected to one end of the belt conveyor 2 4.
[0022] In one embodiment, such as Figure 1 and Figure 3 As shown, the feeding hopper 12 is fixed above the vibrating feeder 11. The feeding hopper 12 has an inspection port 13 on its right side for easy inspection, maintenance and observation of operation. The stepped screen 14 is located on the right side of the vibrating feeder 11. The material is screened in the screening module 1 for particle size, and the undersize material is slag.
[0023] In one embodiment, such as Figure 3 As shown, the feed hopper 211 is fixed to the left side wall of the bottom end of the bucket elevator 21, the inlet of the air classifier 22 is connected to the right side of the top end of the bucket elevator 21, and the outlet of the air classifier 22 is connected to the box-type air classifier 23.
[0024] In one embodiment, such as Figure 3 As shown, the box-type air separator 23 includes a material-distributing roller 231, a fan 232, and a belt conveyor 233. The belt conveyor 233 is located below the outlet of the air separator chute 22. The fan 232 is located to the lower left of the belt conveyor 233. The material-distributing roller 231 is located at the right end of the belt conveyor 233. The separated light materials are blown further by the wind and fall to the right of the material-distributing roller 231. The wind has little effect on the heavy materials and they fall to the left of the material-distributing roller 231.
[0025] In one embodiment, such as Figure 1 , Figure 3 and Figure 4 As shown, the belt conveyor unit 9 is fixed on the bracket 91.
[0026] In one embodiment, such as Figure 1 As shown, the belt conveyors 1 (3), 2 (4), 3 (5), and 4 (8) are equipped with protective covers (6), which can provide waterproofing, heat insulation, sound insulation, and dust suppression.
[0027] In one embodiment, such as Figure 2 and Figure 3 As shown, belt conveyors 1 (3), 4 (8), and 5 (5) are on the same horizontal line, and belt conveyor 2 (4) is perpendicular to belt conveyors 1 (3), 4 (8), and 5 (5), which can separate and stack slag, lightweight materials, and coarse aggregates for convenient subsequent processing.
[0028] In one embodiment, such as Figure 1 As shown, the screening module 1 and the air separation module 2 are located inside the container 7, which can be used reliably in open-air and low-temperature environments, and can also avoid noise and dust pollution to the environment. The container 7 is equipped with an inspection door 71 for convenient inspection, maintenance and observation of operation.
[0029] Usage: Combine Figures 1-4As shown, construction waste raw materials are fed to screening module 1 by a loader. The material is screened for particle size in screening module 1. The undersize material is slag and soil, which is transferred to the slag stockpile by belt conveyor 3 5 through slag chute 15. The oversize material falls onto belt conveyor 4 8 through screening chute 16 and is sent to bucket elevator 21. The bucket elevator 21 then conveys the material into air separation module 2. The material is separated into light and heavy materials in air separation module 2. The separated light materials are transferred to the light material stockpile by belt conveyor 1 3 through light material chute 24, and the heavy materials are transferred to the coarse aggregate stockpile by belt conveyor 2 4 through aggregate chute 25.
[0030] This utility model has been described by the above-described embodiments; however, these embodiments are merely examples for implementing this utility model. It must be noted that the disclosed embodiments do not limit the scope of this utility model. Conversely, any modifications and refinements made without departing from the spirit and scope of this utility model are within the scope of patent protection of this utility model.
Claims
1. A high-efficiency pre-sorting system for construction waste, characterized in that: The system includes a screening module (1), an air separation module (2), and a belt conveyor unit (9). The screening module (1) includes a vibrating feeder (11), a feeding hopper (12), and a stepped screen (14). The bottom of the screening module (1) is connected to a slag chute (15) and a screening chute (16). The air separation module (2) includes a bucket elevator (21), an air separation chute (22), and a box-type air separator (23). The bottom of the air separation module (2) is connected to a light material chute (24) and an aggregate chute (25). The belt conveyor unit (9) includes a belt conveyor one (3), a belt conveyor two (4), a belt conveyor three (5), and a belt conveyor four (8).
2. The efficient pre-sorting system for construction waste as described in claim 1, characterized in that: The slag chute (15) is located to the left of the screening chute (16). The slag chute (15) is connected to one end of the belt conveyor three (5). The screening chute (16) is connected to one end of the belt conveyor four (8). The other end of the belt conveyor four (8) is connected to the feed hopper (211). The light material chute (24) is located to the right of the aggregate chute (25). The light material chute (24) is connected to one end of the belt conveyor one (3). The aggregate chute (25) is connected to one end of the belt conveyor two (4).
3. The efficient pre-sorting system for construction waste as described in claim 1, characterized in that: The feeding hopper (12) is fixed above the vibrating feeder (11), and an inspection port (13) is provided on the right side of the feeding hopper (12). The stepped screen (14) is located on the right side of the vibrating feeder (11).
4. The efficient pre-sorting system for construction waste as described in claim 1, characterized in that: The feed bucket (211) is fixed to the left side wall of the bottom end of the bucket elevator (21), the inlet of the air classifier chute (22) is connected to the right side of the top of the bucket elevator (21), and the outlet of the air classifier chute (22) is connected to the box-type air classifier (23).
5. The efficient pre-sorting system for construction waste as described in claim 1, characterized in that: The box-type air classifier (23) includes a feeding roller (231), a fan (232) and a belt conveyor (233). The belt conveyor (233) is located below the outlet of the air classifier chute (22), the fan (232) is located to the lower left of the belt conveyor (233), and the feeding roller (231) is located at the right end of the belt conveyor (233).
6. The efficient pre-sorting system for construction waste as described in claim 1, characterized in that: The belt conveyor unit (9) is fixed on the bracket (91).
7. The efficient pre-sorting system for construction waste as described in claim 1, characterized in that: The belt conveyors 1 (3), 2 (4), 3 (5) and 4 (8) are equipped with protective covers (6).
8. The efficient pre-sorting system for construction waste as described in claim 1, characterized in that: The belt conveyor 1 (3), belt conveyor 4 (8) and belt conveyor 3 (5) are on the same horizontal line, and belt conveyor 2 (4) is perpendicular to belt conveyor 1 (3), belt conveyor 4 (8) and belt conveyor 3 (5).
9. The efficient pre-sorting system for construction waste as described in claim 1, characterized in that: The screening module (1) and the air separation module (2) are located inside the container (7), and the container (7) is equipped with an inspection door (71).