Mining gangue tumbling prevention device and assembly and large-dip-angle belt conveyor

Abstract

The utility model discloses a mining gangue rolling-down prevention device, a mining gangue rolling-down prevention assembly and a large-dip-angle belt conveyor, the mining gangue rolling-down prevention device comprises a support arranged on a belt of the large-dip-angle belt conveyor, and the support comprises a cross beam transversely arranged above the belt; a flexible baffle is fixedly mounted on the cross beam and droops from the cross beam to the upper surface of the belt, and an overlapping section is arranged at the bottom of the flexible baffle and lapped on the belt; the length of the overlapping section is smaller than that from the beam to the top of the overlapping section; according to the utility model, the flexible baffle plate is additionally arranged on the belt, so that the speed of falling large gangues can be reduced, the impact force of the large gangues on the bottom of the belt close to the belt pressing roller is reduced, the belt is prevented from being torn, and equipment and workers are protected.

Description

Technical Field

[0001] This utility model belongs to the technical field of coal mine belt conveyor equipment, and particularly relates to a mine anti-gangue rolling device, component and large-angle belt conveyor. Background Technology

[0002] A steep-angle belt conveyor is a device capable of conveying bulk materials at a relatively large inclination angle. Its conveying angle is typically greater than that of ordinary belt conveyors (12°–16°), with a maximum inclination angle reaching 27.5° or even higher. If a patterned belt is used, the maximum inclination angle can reach 32°.

[0003] Inclined-angle belt conveyors are widely used in underground coal mines, open-pit mines, and ore processing plants, primarily for transporting bulk materials such as coal, gangue, and ore. They effectively reduce tunnel development and equipment investment, and accelerate project progress.

[0004] Typically, the rollers of a steeply inclined belt conveyor are located at the bottom of the belt. When conveying gangue, large pieces of gangue from the top of the belt often roll down and eventually fall near the pressure roller, causing the belt to tear, damaging the roller, or even injuring workers. Utility Model Content

[0005] The purpose of this utility model is to provide a mining anti-gangue rolling device, component and steep-angle belt conveyor to slow down the rolling speed of large gangue on steep-angle belts, so as to protect equipment and workers.

[0006] The present invention adopts the following technical solution: a mining anti-gangue rolling device, including a bracket installed on the belt of a large-angle belt conveyor, the bracket including a crossbeam horizontally installed above the belt;

[0007] A flexible baffle is fixedly installed on the crossbeam. The flexible baffle hangs down from the crossbeam to the upper surface of the belt, and the bottom of the flexible baffle has an overlapping section that rests on the belt.

[0008] The length of the overlapping section is less than the length from the crossbeam to the top of the overlapping section.

[0009] Furthermore, the flexible baffle includes flexible baffles and several flexible baffles;

[0010] The top of the flexible baffle is fixedly connected to the crossbeam;

[0011] The top of the flexible baffle is fixedly connected to the bottom of the flexible baffle.

[0012] Several flexible baffles are arranged sequentially along the left and right directions of the flexible baffle.

[0013] Furthermore, several flexible baffles cover the middle section of the belt.

[0014] Furthermore, the bottom of the flexible baffle is higher than the top of the lateral inclined section of the belt.

[0015] Furthermore, a device to prevent rockfall from rolling off is installed on the slope section of the conveyor belt.

[0016] Furthermore, the flexible baffle is located on the upper side of the crossbeam.

[0017] Another technical solution of this utility model: a mining anti-gangue rolling component, including the above-mentioned anti-gangue rolling device.

[0018] Another technical solution of this utility model: a large-angle belt conveyor, including the above-mentioned mine anti-gangue rolling device.

[0019] Another technical solution of this utility model: a large-angle belt conveyor, including the above-mentioned mine anti-gangue rolling component.

[0020] The beneficial effects of this utility model are: by adding a flexible baffle to the belt, this utility model can slow down the speed of rolling large pieces of gangue, thereby reducing and preventing the impact force of large pieces of gangue on the bottom of the belt near the pressure roller, preventing the belt from being torn, and protecting the equipment and workers. Attached Figure Description

[0021] Figure 1 This is a schematic diagram illustrating the usage state of a device for preventing rockfall according to an embodiment of the present invention.

[0022] Figure 2 This is a schematic diagram of the usage state of a device for preventing rockfall from falling, according to another perspective of an embodiment of this utility model.

[0023] Figure 3 This is a top view of a device for preventing gangue from rolling down, according to an embodiment of the present invention.

[0024] Among them: 10. Belt; 21. Bracket; 22. Flexible baffle; 23. Fixing plate; 24. Flexible baffle strip. Detailed Implementation

[0025] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0026] This utility model discloses a mining device to prevent gangue from rolling down, such as... Figure 1 and Figure 2 As shown, the device includes a support 21 mounted on the belt 10 of the inclined belt conveyor. The support 21 includes a crossbeam horizontally mounted above the belt 10. A flexible baffle is fixedly mounted on the crossbeam. The flexible baffle hangs down from the crossbeam to the upper surface of the belt 10, and the bottom of the flexible baffle has an overlapping section that rests on the belt 10. The length of the overlapping section is less than the length from the crossbeam to the top of the overlapping section.

[0027] This invention reduces the speed of large pieces of gangue rolling down the belt by adding a flexible baffle to the belt 10, thereby reducing the impact force of the large pieces of gangue on the bottom of the belt near the pressure roller, preventing the belt from being torn, and protecting the equipment and workers.

[0028] The support 21 consists of uprights on both sides of the belt 10 and a top crossbeam. The bottom of the uprights is mounted on the belt idler frame, and the plane of the installed support is perpendicular to the belt. The top of the flexible baffle has multiple through holes spaced horizontally, through which bolts are used to fix it to the crossbeam. More preferably, a fixing plate 23 can be added to the other side of the flexible baffle. The flexible baffle is clamped by the fixing plate 23 and the crossbeam, and then fixed with bolts to increase the fixing strength of the flexible baffle.

[0029] The flexible baffle can be made from scrap conveyor belts. By setting an overlapping section (referring to the overlapping section formed between the flexible baffle and the conveyor belt), the bottom flexible baffle strip 24 can be attached to the surface of the conveyor belt. When the conveyor belt transports gangue, there will be gangue on the surface of the conveyor belt. The gangue is usually less than 10cm in size. At this time, the lower end of the flexible baffle strip 24 will be attached to the top of the gangue, forming a "curtain"-like structure between the gangue and the crossbeam. When large pieces of gangue roll down, it can create resistance to the large pieces of gangue. Moreover, since the baffle strip and the baffle are flexible, the large pieces of gangue will be slowed down after "colliding" with the baffle strip and the baffle.

[0030] In addition, the overlapping section should not be too long to avoid extending into the gaps between small pieces of gangue being transported on the conveyor belt.

[0031] In one embodiment, the flexible baffle includes a flexible baffle plate 22 and several flexible baffle strips 24. The top of the flexible baffle plate 22 is fixedly connected to a crossbeam; the top of the flexible baffle strips 24 is fixedly connected to the bottom of the flexible baffle plate; the several flexible baffle strips 24 are arranged sequentially along the left and right direction of the flexible baffle plate 22. When a large piece of gangue rolls down, its upper part will touch the flexible baffle plate 22, which will absorb most of the impact force of the large piece of gangue. After the impact, the flexible baffle plate 22 deforms and its bottom bends backward and upward, causing the flexible baffle strips 24 to move backward (backward refers to the rolling direction of the gangue, i.e., from the top of the slope to the bottom of the slope). Then, the large piece of gangue continues to roll down from under the flexible baffle plate 22. At the same time, as the large piece of gangue continues to roll down, it will also hit several flexible baffle strips 24. This impact action will further reduce the speed of the large piece of gangue. The function of the flexible baffle strips 24 is to provide a passage for the large piece of gangue and to further resist the large piece of gangue.

[0032] Since large pieces of gangue usually fall along the middle section of the conveyor belt, several flexible baffles 24 cover the middle section of the conveyor belt 10, which can block most of the large pieces of gangue.

[0033] When transporting gangue on conveyor belt 10, the height of the gangue layer typically reaches the inclined section of the belt. It should be explained that, as... Figure 3 As shown, viewed laterally from the belt 10, it includes a left-sloping section, a middle section, and a right-sloping section. The middle section is typically designed parallel to the direction of the ramp. The left-sloping and right-sloping sections are usually higher than the middle section, thus creating a V-shaped or U-shaped cross-section for the belt. The gangue is located in the middle of the V-shaped or U-shaped structure. When large pieces of gangue roll down, they inevitably roll down along the surface of the gangue layer, so their height is usually slightly higher than the top of the inclined section of the belt.

[0034] Therefore, in order to prevent large pieces of gangue from directly impacting the crossbeam, the bottom of the flexible baffle 22 is higher than the top of the lateral inclined section of the belt 10, thus providing space for large pieces of gangue to roll off (i.e., between the flexible baffle 22 and the surface of the non-rolling gangue layer), so that the flexible baffle and the large pieces of gangue will have a "soft impact".

[0035] Since the slope of the ramp where the belt 10 is located is not constant, large pieces of gangue will accelerate under their own gravity at the bottom where the slope becomes steeper during the rolling process. Therefore, the anti-gangue rolling device of this utility model is set in the variable slope section of the belt 10 to minimize the increase and decrease of its rolling speed.

[0036] In one embodiment, the flexible baffle 22 is located on the upper side of the crossbeam. In this way, when the flexible baffle 22 "collides" with a large piece of gangue, some of the force will be dissipated onto the crossbeam, preventing damage to the flexible baffle.

[0037] This utility model also discloses a mining anti-gangue rolling component, which includes several of the above-mentioned anti-gangue rolling devices.

[0038] This utility model also discloses a large-angle belt conveyor, including the above-mentioned mine anti-gangue rolling device.

[0039] This utility model also discloses a large-angle belt conveyor, including the above-mentioned mine anti-gangue rolling component.

Claims

1. A mining device for preventing rockfall, characterized in that, Includes a bracket (21) mounted on the belt (10) of a steeply inclined belt conveyor, the bracket (21) including a crossbeam transversely mounted above the belt (10); A flexible baffle is fixedly installed on the crossbeam. The flexible baffle hangs down from the crossbeam to the upper surface of the belt (10). The bottom of the flexible baffle has an overlapping section, which rests on the belt (10). The length of the overlapping section is less than the length from the crossbeam to the top of the overlapping section.

2. The mining anti-slag rolling device as described in claim 1, characterized in that, The flexible baffle includes a flexible baffle plate (22) and a plurality of flexible baffle strips (24); The top of the flexible baffle (22) is fixedly connected to the crossbeam; The top of the flexible baffle (24) is fixedly connected to the bottom of the flexible baffle; Several of the flexible baffles (24) are arranged sequentially along the left and right directions of the flexible baffle (22).

3. A mining anti-slag rolling device as described in claim 2, characterized in that, Several of the flexible baffles (24) cover the middle section of the belt (10).

4. A mining anti-slag rolling device as described in claim 2, characterized in that, The bottom of the flexible baffle (22) is higher than the top of the lateral inclined section of the belt (10).

5. A mining anti-slag rolling device as described in claim 3 or 4, characterized in that, The anti-rock rolling device is installed on the slope section of the belt (10).

6. A mining anti-slag rolling device as described in claim 3 or 4, characterized in that, The flexible baffle (22) is located on the upper side of the crossbeam.

7. A mining component for preventing rockfall, characterized in that, Includes a device for preventing rockfall as described in any one of claims 1-6.

8. A belt conveyor with a large inclination angle, characterized in that, Includes a mining anti-gangue rolling device as described in any one of claims 1-6.

9. A belt conveyor with a large inclination angle, characterized in that, Includes the mining anti-gangue rolling component as described in claim 7.

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