Dust screen fragment capturing device for coal gangue
By designing a coal gangue dust control net fragment capture device, a hook and claw structure is used to separate coal gangue from dust control net fragments in the feeding chute, solving the screen clogging problem, improving capture efficiency and equipment maintainability, and reducing maintenance costs.
Patent Information
- Application Number
- CN202520401372.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-10
AI Technical Summary
Dust screen fragments mixed in with coal gangue cause screen blockage, leading to screen overload shutdown, or even motor burnout, increasing maintenance costs. Existing technology lacks effective solutions to this problem.
A device for capturing coal gangue dust net fragments is designed. The device separates coal gangue from dust net fragments in the feeding chute using a hook and claw structure. The special structure and arrangement of the hook and claw are used to hook the fragments, while the coal gangue continues to slide down, thus achieving separation.
It improves capture efficiency, ensures the purity of coal gangue, reduces maintenance costs and downtime, and avoids damage to subsequent processes and equipment from fragments.
Smart Images
Figure CN223865951U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to coal processing and utilization technical field, concretely relates to a coal gangue dust screen broken block catching device. BACKGROUND
[0002] In the operation process of the circulating fluidized bed boiler, coal gangue is often used as fuel. However, in the process of mining, transportation and storage, the dust screen around the environment may be damaged for various reasons and mixed therein. When these coal gangues mixed with dust screen broken blocks enter the fuel sieve, it will cause the blockage of the sieve mesh, resulting in that the gangue fuel cannot flow into the transport belt below the sieve, a large amount of coal gangue is accumulated in the sieve box, causing the sieve to overload and stop, and even burning out the motor, which affects the normal operation of the boiler and increases the maintenance cost. At present, there is a lack of effective treatment means for the dust screen broken blocks in the coal gangue fuel of the circulating fluidized bed boiler, and a reliable catching device is needed to solve this problem. SUMMARY
[0003] The utility model aims at providing a coal gangue dust screen broken block catching device to solve the problem that when the coal gangue mixed with dust screen broken blocks enters the fuel sieve, it will cause the blockage of the sieve mesh, resulting in that the gangue fuel cannot flow into the transport belt below the sieve, a large amount of coal gangue is accumulated in the sieve box, causing the sieve to overload and stop, and even burning out the motor.
[0004] To achieve the above-mentioned purpose, the utility model provides a basic scheme: a coal gangue dust screen broken block catching device, including upper belt, discharge chute and lower belt, the discharge opening of the discharge chute is located at the end of the upper belt, the discharge opening of the discharge chute is located at the first end of the lower belt, the discharge chute is equipped with a frame, the frame is equipped with a support plate, the support plate is detachably connected with the frame, the support plate is equipped with a connecting plate, the connecting plate is equipped with a plurality of hooks, and the plurality of hooks are equidistantly staggered.
[0005] The working principle of the utility model is that when the coal gangue is conveyed to the end along with the upper belt, it will slide down through the discharge chute. In the sliding process, the coal gangue and the dust screen broken blocks mixed therein pass through the hook area together. Due to the special structure and arrangement mode of the hook, the dust screen broken blocks will be hooked by the hook, and the coal gangue will continue to slide down after passing through the hook by virtue of its own gravity and falling inertia, and finally fall from the discharge opening of the discharge chute onto the lower belt, realizing the separation of the coal gangue and the dust screen broken blocks.
[0006] The beneficial effects of the utility model lie in: the support plate and the frame are detachably connected, the support plate can be quickly detached for replacement or maintenance when the hook claws are worn or need to be cleaned, the maintainability of the equipment is greatly improved, and the maintenance cost and downtime are reduced; the hook claws are arranged at equal intervals, can capture the falling dust screen fragments in all directions without dead angles, greatly improve the capture efficiency, ensure that the dust screen fragments mixed in the coal gangue are separated as much as possible, ensure the purity of the coal gangue conveyed by the lower belt, and avoid damage or failure of the dust screen fragments to the subsequent process and equipment.
[0007] Scheme two, this is the preferred basis scheme, the inner side of the frame is provided with a groove, and the support plate is in sliding connection with the frame. The frame is concave in the inside, which increases the contact area of the material and improves the interception probability of the fragments. The support plate is in sliding connection with the frame, which facilitates quick pulling and replacement during maintenance and ensures efficient operation of the equipment.
[0008] Scheme three, this is the preferred scheme two, the frame is hingedly connected with a baffle plate, the baffle plate is provided with a screw rod at both ends, and the screw rod is threadedly connected with a nut. The baffle plate is hingedly connected to one side of the frame, and the screw rod at both ends is matched with the nut, so that the baffle plate can be flexibly opened and closed, which can prevent the material from splashing and facilitate adjustment and disassembly during maintenance.
[0009] Scheme four, this is the preferred basis scheme, one side of the frame is provided with a guide plate, and the angle between the guide plate and the horizontal direction is 30°. The frame is provided with a 30° guide plate on one side, which accurately guides the flow direction of the coal gangue, so that the coal gangue uniformly contacts the capture structure, and the capture efficiency and accuracy of the fragments are greatly improved.
[0010] Scheme five, this is the preferred basis scheme, the surface of the hook claw is sawtooth-shaped. The edge of the hook claw is designed to be sawtooth-shaped, which further increases the contact friction force with the dust screen fragments, especially for the fragments with light and thin texture which are easy to break free, the capture success rate can be effectively improved.
[0011] Scheme six, this is the preferred basis scheme, the connecting plate is internally provided with a magnetic material. The magnetic material is embedded in the connecting frame, and for the metal dust screen fragments mixed in the coal gangue, the magnetic force can be used to assist in capturing, and the capture efficiency of the special material fragments can be improved. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 is a perspective view of a coal gangue dust screen fragment capturing device according to the utility model;
[0013] Figure 2 is a perspective view of a frame and a baffle plate in a coal gangue dust screen fragment capturing device according to the utility model;
[0014] Figure 3 is a perspective view of a hook claw in a coal gangue dust screen fragment capturing device according to the utility model. DETAILED DESCRIPTION
[0015] The utility model will be further explained in detail through specific implementation below:
[0016] The reference signs in the description accompanying drawings include: 1. upper belt, 2. blanking chute, 3. lower belt, 4. frame, 5. support plate, 6. connecting plate, 7. hook claw, 8. baffle, 9. guide plate.
[0017] Embodiment
[0018] The embodiment is basically as shown in the accompanying drawings: Figure 1 to the accompanying drawings: Figure 3 A coal gangue dust screen broken block catching device, including upper belt 1, blanking chute 2 and lower belt 3, the blanking chute 2 is located at the end of the upper belt 1 of blanking, and the blanking chute 2 is located at the first end of the lower belt 3, and the blanking chute 2 is provided with frame 4, and the frame 4 is provided with support plate 5, and the inner side of the frame 4 is provided with recess, and the support plate 5 is slidably connected with the frame 4, and the frame 4 is hingedly connected with baffle 8, and the movable end of the baffle 8 is bolted with the frame 4, and the support plate 5 is provided with connecting plate 6, and the connecting plate 6 is provided with magnetic material, and the connecting plate 6 is provided with a plurality of hook claws 7, and the plurality of hook claws 7 are equidistantly staggered, and the frame 4 is provided with guide plate 9, and the angle between the guide plate 9 and the horizontal direction is 30 °.
[0019] The embodiment of the present application is:
[0020] When the coal gangue and other impurities are screened and separated, first, the upper belt 1 is started, the coal gangue and the dust screen broken block mixed therein are transported to the end along with the operation of the belt, then rely on gravity to enter the blanking chute 2, in the process of sliding, the guide plate 9 guides the material to the frame 4 area of concave type, so that the material is more evenly distributed, at this time, the hook claw 7 starts to intercept the dust screen broken block, and the magnetic material in the connecting plate 6 also has adsorption effect on the broken block of metal material, further improving the catching effect, the baffle 8 is fixed with the frame 4 by bolt, preventing the material from splashing, if maintenance or overhaul is needed, unscrew the bolt to open the baffle 8, the coal gangue after catching falls on the lower belt 3 from the discharge port of the blanking chute 2, and is transported to the subsequent process, completing the whole work flow.
[0021] The above is only the embodiment of the utility model, and the well-known specific structure and characteristics in the scheme are not described too much. It should be pointed out that for those skilled in the art, without departing from the structure of the utility model, a number of deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, which will not affect the effect and practicability of the utility model. The protection scope of the present application should be subject to the content of its claims, and the specific implementation mode and the like recorded in the specification can be used to explain the content of the claims.
Claims
1. A device for capturing fragments of coal gangue dust netting, characterized in that, It includes an upper belt (1), a discharge chute (2) and a lower belt (3). The discharge port of the discharge chute (2) is located at the end of the upper belt (1), and the discharge port of the discharge chute (2) is located at the beginning of the lower belt (3). The discharge chute (2) is provided with a frame (4), and a support plate (5) is provided inside the frame (4). The support plate (5) is detachably connected to the frame (4). The support plate (5) is provided with a connecting plate (6), and the connecting plate (6) is provided with several hooks (7). The hooks (7) are arranged equidistantly and alternately.
2. The coal gangue dust control net fragment capture device according to claim 1, characterized in that, The inner side of the frame (4) is provided with a groove, and the support plate (5) is slidably connected to the frame (4).
3. The coal gangue dust control net fragment capture device according to claim 2, characterized in that, A baffle (8) is hinged to one side of the frame (4), and the movable end of the baffle (8) is bolted to the frame (4).
4. The coal gangue dust control net fragment capture device according to claim 1, characterized in that, The frame (4) is provided with a guide plate (9) on one side, and the guide plate (9) is at an angle of 30° to the horizontal direction.
5. A coal gangue dust control net fragment capture device according to claim 1, characterized in that, The surface of the hook (7) is serrated.
6. The coal gangue dust control net fragment capture device according to claim 1, characterized in that, The connecting plate (6) contains magnetic material.