A conveyor tail spillage collection device for producing high performance concrete
By designing an inverted trapezoidal collection trough and a telescopic trough at the tail of the concrete conveyor, and equipping it with a protective net and a vibrating motor, the problem of difficult material collection in traditional devices is solved, and efficient material capture and recycling are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGXIA ZHONGNING SAIMA CEMENT CO LTD
- Filing Date
- 2025-08-12
- Publication Date
- 2026-06-05
AI Technical Summary
Traditional concrete conveyor tail leakage collection devices have low capture rates, making leakage difficult to recover. Furthermore, after prolonged use, belts loosen, causing leakage locations to change and making effective collection difficult.
Design a belt conveyor with an inclined configuration, featuring an inverted trapezoidal collection trough and a telescopic trough, equipped with a protective net and a vibrating motor. The protective net intercepts leaking material, while the vibrating motor uses its excitation force to move the material into the discharge pipe. Combined with a flexible pipe connection, interference is reduced, achieving efficient collection.
It improves the efficiency of leak collection, with a leak capture rate of over 95%, reduces material waste, and enhances operational safety and recycling efficiency.
Smart Images
Figure CN224324576U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete conveying equipment technology, and in particular to a material leakage collection device at the tail of a conveyor used for producing high-performance concrete. Background Technology
[0002] In the operation of a concrete mixing plant, the belt conveyor is the core equipment for conveying aggregates and concrete mixtures. Because high-performance concrete requires the transport of various admixtures via belt conveyors, material leakage is prone to occur when unloading at the tail end of the inclined conveyor due to material inertia and belt vibration.
[0003] Currently, the leakage capture rate of traditional fixed receiving hoppers is only 70%-80%, resulting in a material waste of more than 50 tons per production line per year. In addition, after long-term use, the belt of the belt conveyor becomes loose, the discharge point at the tail of the conveyor changes, and the leakage location also changes, making it difficult to collect the leakage. Furthermore, during the process of conveying to the upper end of the belt conveyor, the stability of the aggregate is very poor, and it is very easy to detach from the belt conveyor and move to both sides, resulting in multiple leakage points on both sides of the belt conveyor at the upper end, making it difficult to recover the leakage on both sides of the belt. Utility Model Content
[0004] This invention provides a material leakage collection device for the tail end of a concrete conveyor used in the production of high-performance concrete, which solves the problems of difficulty in collecting leakage material at the tail end of traditional concrete conveyors and low recycling efficiency.
[0005] To achieve the above objectives, this utility model provides a material leakage collection device for the tail end of a conveyor used in the production of high-performance concrete. The device includes an inclined belt conveyor, a conveyor belt, and a frame. A collection trough is provided at the bottom of the conveyor belt, and the cross-section of the collection trough is an inverted trapezoid. A telescopic trough is connected to the upper end of the collection trough. One end of the telescopic trough is fitted inside the collection trough, and the other end extends below the unloading end of the belt conveyor. A positioning block is provided at the bottom of the upper end of the collection trough. A positioning hole is provided inside the positioning block, and an adjusting rod passes through it. One end of the adjusting rod is fixed to a fixing block at the bottom of the telescopic trough. A threaded hole is provided on the side wall of the positioning block, and a locking screw is installed in the threaded hole. Fixing rods are provided on both sides of the frame, and protective netting is installed on the fixing rods.
[0006] As an improvement of the above-mentioned collection trough of this utility model, an inclined discharge pipe is provided below the collection trough, the upper end of the discharge pipe is connected to the discharge port provided at the bottom of the collection trough, and the lower end of the discharge pipe is fixedly connected to the frame of the belt conveyor.
[0007] To further reduce the interference of the discharge from the collection tank on the discharge pipe, the upper end of the discharge pipe is connected to the discharge port of the collection tank through a flexible pipe.
[0008] Optionally, a transparent observation window is provided on the side wall of the collection tank.
[0009] Optionally, the inner walls of the collecting trough, the telescopic trough, and the discharge pipe are provided with a wear-resistant layer.
[0010] As an improvement of the above-mentioned collection tank of this utility model, two crossbeams are provided at the bottom of the front and rear ends of the collection tank, two guide blocks are provided on each crossbeam, and a guide hole is provided on each guide block. A guide rod is inserted into the guide hole, one end of the guide rod extends out of the guide hole and is connected and fixed to a fixing plate provided at the bottom of the collection tank, and a spring is provided on the guide rod. The two ends of the spring are respectively connected to the fixing plate and the guide block. A vibration motor is provided at the bottom of the collection tank.
[0011] As can be seen from the above technical solutions, this utility model provides a material leakage collection device for the tail end of a conveyor used in the production of high-performance concrete.
[0012] The beneficial effects of this utility model are as follows:
[0013] 1. By locking the telescopic trough directly below the unloading roller with the adjusting rod, the material leaking from the unloading end of the conveyor belt is collected. The falling material is intercepted by the protective nets on both sides of the conveyor belt to prevent it from falling below the belt conveyor. The falling material is intercepted by the protective nets on both sides and collected into the collection trough for recycling. The leakage collection efficiency is high and the collection range is large.
[0014] 2. The vibration motor generates an oblique excitation force, and the spring amplifies the amplitude to break the static state of the material in the collection tank, causing the material in the collection tank to move downwards along the collection tank and be discharged into the discharge pipe through the discharge port for collection on the ground, preventing leakage and accumulation in the collection tank from causing blockage.
[0015] 3. By connecting the discharge pipe and flexible pipe to the discharge port of the collection tank, the leaked material collected in the collection tank can be discharged in time, which is convenient for timely recycling. Attached Figure Description
[0016] To more clearly illustrate the technical solution of this utility model, the drawings used in the implementation examples will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.
[0017] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present utility model;
[0018] Figure 2 This is another schematic diagram of an embodiment of the present utility model;
[0019] Figure 3 Appendix to this utility model Figure 2 A partially enlarged structural diagram of position I;
[0020] Figure 4 Appendix to this utility model Figure 2 A magnified schematic diagram of the partial structure at position II;
[0021] Figure 5 This is a partial structural schematic diagram of an embodiment of the present utility model.
[0022] Explanation of reference numerals in the attached figures:
[0023] 1-Belt conveyor; 11-Conveyor belt; 12-Frame; 13-Fixing rod; 2-Collection trough; 21-Positioning block; 22-Adjusting rod; 23-Locking screw; 24-Transparent observation window; 3-Protective net; 4-Expansion trough; 41-Fixing block; 42-Elastic seal; 5-Discharge pipe; 51-Flexible pipe; 6-Crossbeam; 61-Guide block; 62-Guide rod; 63-Fixing plate; 64-Spring; 65-Vibration motor. Detailed Implementation
[0024] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.
[0025] like Figure 1-5 This invention illustrates a material leakage collection device at the tail of a conveyor used for producing high-performance concrete. The device includes an inclined belt conveyor 1, a conveyor belt 11, and a frame 12. A collection trough 2 is located at the bottom of the conveyor belt 11, with an inverted trapezoidal cross-section. A telescopic trough 4 is connected to the upper end of the collection trough 2. One end of the telescopic trough 4 is fitted inside the collection trough 2, and the other end extends below the unloading end of the belt conveyor 1. A positioning block 21 is located at the bottom of the upper end of the collection trough 2. A positioning hole is provided inside the positioning block 21, and an adjusting rod 22 passes through it. One end of the adjusting rod 22 is fixed to a fixing block 41 at the bottom of the telescopic trough 4. A threaded hole is provided on the side wall of the positioning block 21, and a locking screw 23 is installed inside the threaded hole. Fixing rods 13 are provided on both sides of the frame 12, and a protective net 3 is installed on the fixing rods 13.
[0026] In one embodiment of this utility model, the belt conveyor 1 is inclined (preferably 15°-25°) to convey high-performance concrete. The inclination angle prevents material from flowing by gravity. The collection trough 2 is located at the bottom of the conveyor belt 11, with an inverted trapezoidal cross-section (wider at the top and narrower at the bottom). The inverted trapezoidal sidewall inclination angle is 60°. The material is drawn towards the center by gravity along the incline. The bottom width of the collection trough 2 is ≤400mm to avoid material accumulation in the middle of the large-span trough. The upper end (discharge end) is connected to the telescopic trough 4 to receive the concrete raw material spilled from the tail. The inverted trapezoidal design prevents material splashing and guides the flow towards the center. One end of the telescopic trough 4 is fitted into the collection trough 2, and the other end extends below the discharge end, dynamically covering the discharge trajectory to prevent leakage. The positioning block 21 has a positioning hole, and the adjusting rod 22 passes through the positioning hole. The fixing block 41 is welded to the bottom of the telescopic trough. The locking screw 23 adjusts the extension length of the telescopic trough 4 through the adjusting rod 22. The locking screw 23 is fixed in position. Loosening the locking screw 23 allows the adjusting rod 22 to be pulled out. The telescopic groove 4 is synchronously displaced, and after positioning, the locking screw is tightened to secure the adjusting rod 22, ensuring accurate coverage of the leakage area. The depth of the telescopic groove 4 inserted into the collection groove 2 is ≥300mm, and the gap is controlled at 5mm (to ensure the freedom of sliding and prevent leakage).
[0027] In one embodiment of this utility model, the wire mesh of the protective net 3 is fixed on a rectangular frame. The protective net 3 is installed on fixed rods 13 inclined on both sides of the frame 12. The lower end of the fixed rods 13 is welded and fixedly connected to the frame 12. The protective net 3 blocks splashed aggregate and guides the leaked aggregate into the collection trough 2, ensuring operational safety. The rectangular frame is fixed to the fixed rods 13 with bolts to form an isolation barrier. The protective net 3 is set along the entire length of the frame 12 with a height ≥1.2m, forming physical isolation. The impact strength of the wire mesh is ≥500J (meeting the national standard GB / T 20118). The spacing of the fixed rods 13 is ≤1.5m to prevent deformation, so that the aggregate conveyed by the belt conveyor 1 falls to both sides after being conveyed to the high end and is collected on the protective net 3. Due to the inertia of the material, the material is easily scattered at the unloading end of the belt, and the vibration of the conveyor belt causes the drop point to drift. The telescopic trough 4 is always suspended directly below the unloading roller (≤100mm from the belt) to capture splashed material in real time. When the belt runs off-track or vibrates, loosen the locking screw 23 and adjust the position of the telescopic groove 4 to realign with the material drop trajectory. The material leakage capture rate is increased to over 95% (compared to only 70%-80% for traditional fixed hoppers).
[0028] Based on the above embodiments, further referring to... Figure 2An inclined discharge pipe 5 is installed below the illustrated collection tank 2. The upper end of the discharge pipe 5 is connected to the discharge port at the bottom of the collection tank 2, and the lower end of the discharge pipe 5 is fixedly connected to the frame 12 of the belt conveyor 1. The upper end of the discharge pipe 5 is connected to the discharge port of the collection tank 2 via a flexible pipe 51. The discharge pipe 5 is made of rectangular steel pipe and fixed at a 60° angle. The upper end is connected to the flange of the discharge port at the bottom of the collection tank 2 via a fluororubber flexible pipe 51 (200mm in length). The fluororubber flexible pipe 51 can be corrugated to prevent stress concentration. The lower end of the discharge pipe 5 is fixed to the horizontal beam of the frame 12 by a U-shaped clamp or welding to prevent vibration displacement.
[0029] Based on the above embodiments, optionally, a wear-resistant layer is provided on the inner wall of the collecting trough 2, the telescopic trough 4 and the discharge pipe 5, and a 10mm alumina ceramic liner is pasted on the inner wall of the collecting trough 2, the telescopic trough 4 and the discharge pipe 5, and wear-resistant adhesive is used to fill the joints.
[0030] Based on the above embodiments, optionally, refer to Figure 2 , 4 The illustrated collection tank 2 has a transparent observation window 24 on its side wall. A 400×150mm window is opened in the side wall of collection tank 2, into which a 12mm polycarbonate plate is embedded. A hydrophobic coating is sprayed to prevent material accumulation. The accumulation status can be directly identified through the observation window 24, reducing manual inspection by 90%. The hydrophobic coating reduces the amount of material contamination by 70%.
[0031] Based on the above embodiments, optionally, refer to Figure 4 , 5 Two crossbeams 6 are fixedly installed at the bottom of the front and rear ends of the collection tank 2. Each crossbeam 6 is fixedly connected to two longitudinal beams of the frame 12 at both ends. Two guide blocks 61 are fixedly installed on each crossbeam 6. Each guide block 61 has a guide hole, and a guide rod 62 passes through the guide hole. One end of the guide rod 62 extends out of the guide hole and is connected and fixedly installed to the fixing plate 63 fixedly installed at the bottom of the collection tank 2. A spring 64 is sleeved on the guide rod 62. The spring 64 is a compression spring. Both ends of the spring 64 are elastically fixedly connected to the fixing plate 63 and the guide block 61 respectively. The bottom of the collection tank 2 is fixed. A vibration motor 65 is fixedly installed. The base of the vibration motor 65 is fixedly connected to the bottom of the collection tank 2 by bolts. A neoprene rubber shock-absorbing pad (10mm thick) is placed between the base and the collection tank 2 to reduce noise. The vibration motor 65 applies excitation force, causing the collection tank 2 to move back and forth under the guidance of the guide rod 62, driving the aggregate collected in the collection tank 2 to move downward, preventing material accumulation in the collection tank 2. The material in the collection tank 2 is discharged from the discharge port at its bottom into the discharge pipe 5 for collection on the ground, or the lower end of the discharge pipe 5 is extended into the concrete loading garage for collection.
[0032] The working principle of this utility model is as follows:
[0033] 1. Leakage material capture and collection stage: First, the operator locks the telescopic trough 4 within ±20mm directly below the discharge roller according to the leakage location using the adjusting rod 22 to collect the material leaking from the discharge end of the conveyor belt 11; at the same time, the aggregate conveyed to the upper end of the belt conveyor 1 will drop to both sides, and the protective nets 3 on both sides of the conveyor belt 11 will intercept the falling material to prevent it from falling below the belt conveyor 1. The falling material is intercepted into the collection trough 2 by the protective nets 3 on both sides.
[0034] 2. Discharge stage: The controller controls the vibrating motor 65 to generate an oblique excitation force, which is amplified to 3mm by the spring 64. This breaks the static state of the material in the collection tank 2, causing the material in the collection tank 2 to move downwards along the collection tank 2 and be discharged into the discharge pipe 5 through the discharge port for collection on the ground.
[0035] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope of the invention is indicated by the claims.
[0036] It should be understood that this utility model is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model.
Claims
1. A conveyor tail leakage collection device for producing high-performance concrete, comprising an inclined belt conveyor (1), the belt conveyor (1) comprising a conveyor belt (11) and a frame (12), characterized in that: The bottom of the conveyor belt (11) is provided with a collection trough (2). The cross-section of the collection trough (2) is an inverted trapezoid. The upper end of the collection trough (2) is connected to a telescopic trough (4). One end of the telescopic trough (4) is fitted into the collection trough (2), and the other end extends to the unloading end of the belt conveyor (1). The bottom of the upper end of the collection trough (2) is provided with a positioning block (21). The positioning block (21) is provided with a positioning hole and an adjusting rod (22) is inserted inside. One end of the adjusting rod (22) is fixed to the fixing block (41) at the bottom of the telescopic trough (4). The side wall of the positioning block (21) is provided with a threaded hole. A locking screw (23) is provided in the threaded hole. The two sides of the frame (12) are provided with fixing rods (13). A protective net (3) is provided on the fixing rods (13).
2. The conveyor tail leakage collection device for producing high-performance concrete according to claim 1, characterized in that, An inclined discharge pipe (5) is provided below the collection trough (2). The upper end of the discharge pipe (5) is connected to the discharge port provided at the bottom of the collection trough (2), and the lower end of the discharge pipe (5) is fixedly connected to the frame (12) of the belt conveyor (1).
3. A conveyor tail leakage collection device for producing high-performance concrete according to claim 2, characterized in that, The upper end of the discharge pipe (5) is connected to the discharge port of the collection tank (2) through a flexible pipe (51).
4. A conveyor tail leakage collection device for producing high-performance concrete according to claim 3, characterized in that, A transparent observation window (24) is provided on the side wall of the collection tank (2).
5. A conveyor tail leakage collection device for producing high-performance concrete according to claim 1, characterized in that, The inner walls of the collection trough (2), the telescopic trough (4) and the discharge pipe (5) are provided with wear-resistant layers.
6. A conveyor tail leakage collection device for producing high-performance concrete according to claim 1, characterized in that, Two crossbeams (6) are provided at the bottom of the front and rear ends of the collection tank (2). Two guide blocks (61) are provided on each crossbeam (6). A guide hole is provided on each guide block (61). A guide rod (62) is inserted through the guide hole. One end of the guide rod (62) extends out of the guide hole and is connected and fixed to the fixing plate (63) provided at the bottom of the collection tank (2). A spring (64) is provided on the guide rod (62). The two ends of the spring (64) are respectively connected to the fixing plate (63) and the guide block (61). A vibration motor (65) is provided at the bottom of the collection tank (2).