Circulating type coal mine filling material conveying device

Abstract

The utility model provides a circulating coal mine filling material conveying device, which belongs to the technical field of mine goaf filling and comprises a mounting frame, a conveying component and a tamping component. Supporting legs are fixedly mounted at the bottom end of the mounting frame, and a discharging hopper is arranged at the top of one end of the mounting frame. The fixing frame is installed at the bottom of the front end of the installation frame, the baffle is installed at the front end of the fixing frame, the baffle plays a role in blocking bottom-layer padding and preventing the bottom-layer padding from collapsing and dispersing in the tamping process, the hydraulic telescopic cylinder is installed in the fixing frame, and the hydraulic telescopic cylinder stretches to drive the tamping pressing plate to gather and tamp the padding. A hydraulic telescopic cylinder is installed in a fixing frame, a tamping pressing plate is driven by the lifting oil cylinder to rise along with the increase of the filler, and the tamping pressing plate is driven by the lifting oil cylinder to change along with the increase of the filler, so that the loading capacity of the filler is improved, the effective supporting force of the filler is guaranteed, and the subsidence range of the goaf is prevented from being increased. And the tamping of high-altitude filler is met.

Description

Technical Field

[0001] This utility model relates to the field of mine goaf filling technology, specifically a circulating coal mine filling material conveying device. Background Technology

[0002] Mining goaf areas are underground voids left after mining. If they are not filled, they can cause ground subsidence and pose a danger. Filling goaf areas in coal mines can reduce ground subsidence and eliminate unsafe factors. Filling mining involves filling the goaf areas with filling materials underground or on the surface to control surface subsidence and improve the mining rate of coal resources. Currently, the main materials for filling coal mine goaf areas are gangue, as well as coal ash and steel slag. Filling technology mainly includes the selection of filling equipment, the selection and preparation of filling materials, and filling feeding and conveying systems. Solid material feeding and conveying systems generally use feeding holes to feed materials underground, and then use coal mine belt conveyors or scraper conveyors to transport them to the filling point. Existing conveyors can only transport slag such as gangue and coal ash to the filling area, and cannot compact the filling material, resulting in loose gaps in the filling material and low bearing capacity, leading to an increase in the later settlement range. Utility Model Content

[0003] The purpose of this utility model is to provide a circulating coal mine filling material conveying device to solve the problem mentioned in the background art that the existing conveyors can only transport slag materials such as gangue and coal ash to the filling area, and cannot compact the filling material, resulting in loose gaps in the filling material and low bearing capacity, which leads to an increase in the settlement range in the later stage.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a circulating coal mine filling material conveying device, comprising a mounting frame, a conveying component, and a compaction component;

[0005] Wherein: the bottom end of the mounting frame is fixedly installed with a support leg, and the top of one end of the mounting frame is provided with a material feeding hopper;

[0006] The conveying assembly includes drive rollers rotatably mounted at both ends of a mounting frame, a conveyor belt wound between the two drive rollers, a plurality of supports fixedly mounted on the surface of the mounting frame, a trough-shaped idler group rotatably mounted on the surface of the supports, the inner wall of the conveyor belt wound around the surface of the trough-shaped idler group, and a drive motor mounted on the top of one end of the mounting frame, the output end of the drive motor being connected to the drive roller at one end of the frame.

[0007] The compaction assembly includes a fixed frame that is fixedly installed at the bottom front end of the mounting frame. A baffle is fixedly installed at the front end of the fixed frame. A hydraulic telescopic cylinder is installed inside the fixed frame. A compaction pressure plate is installed at the telescopic end of the hydraulic telescopic cylinder. A lifting cylinder is also installed inside the fixed frame. The telescopic end of the lifting cylinder is hinged to the bottom of the hydraulic telescopic cylinder.

[0008] As a preferred embodiment of this utility model: a water pump is installed at the bottom of the mounting frame near the discharge hopper, arched supports are installed on both sides of the top of the mounting frame, a water supply pipe is installed on the surface of the arched supports, a number of spray heads are fixedly installed on the surface of the water supply pipe, the spray heads face the conveyor belt, and one end of the water supply pipe is connected to the water pump.

[0009] As a preferred embodiment of this utility model: an active flywheel is fixedly installed at the output end of the drive motor, and a driven flywheel is fixedly installed at one end of one of the drive rollers. The active flywheel and the driven flywheel are connected by a transmission belt.

[0010] As a preferred embodiment of this utility model: a hydraulic cylinder is installed at the bottom of the support leg, and a lifting leg is inserted inside the support leg; the telescopic end of the hydraulic cylinder is hinged to the bottom of the lifting leg.

[0011] As a preferred embodiment of this utility model: the front end of the mounting bracket is internally threaded with an adjusting screw, the surface of the adjusting screw is threaded with a slider, the slider slides through the surface of the mounting bracket, the top of the slider is mounted with a bearing seat, and another drive roller is rotatably mounted inside the bearing seat.

[0012] As a preferred embodiment of this utility model: a protective cover is installed on one side of the mounting bracket, and the protective cover covers the surface of the transmission belt.

[0013] As a preferred embodiment of this utility model: the mounting frame is provided with a control panel on the outside, and the drive motor, hydraulic telescopic cylinder, lifting cylinder, water pump and hydraulic cylinder are all electrically connected to the control panel, and the control panel is electrically connected to an external power supply.

[0014] As a preferred embodiment of this utility model: a drive sprocket is installed at one end of another drive roller, a cleaning roller brush is rotatably installed at the bottom of the mounting frame, the cleaning roller brush is in contact with the surface of the conveyor belt, a driven sprocket is installed at one end of the cleaning roller brush, the drive sprocket and the driven sprocket are connected by chain drive, and a guide nozzle is provided at the bottom of the cleaning roller brush.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] (1) A fixed frame is installed at the bottom front end of the mounting frame. A baffle is installed at the front end of the fixed frame. The baffle blocks the bottom layer of filling material to prevent it from collapsing and scattering during the compaction process. A hydraulic telescopic cylinder is installed inside the fixed frame. The hydraulic telescopic cylinder extends and drives the compaction plate to gather and compact the filling material, thereby increasing the filling material's interlocking degree and improving its pressure-bearing capacity. This ensures that the filling material can effectively support the force and prevents the subsidence range of the goaf from increasing. A lifting cylinder is installed inside the fixed frame. The lifting cylinder is used to adjust the lifting height of the hydraulic telescopic cylinder. As the filling material increases, the compaction plate rises and changes under the drive of the lifting cylinder to meet the compaction requirements of the filling material at higher locations.

[0017] (2) A water pump is installed at the bottom of the mounting frame near the discharge hopper. The water pump delivers external water to the water supply pipe. The arched bracket serves to fix and support the water supply pipe. Water is sprayed in a mist form above the conveyor belt through the spray nozzle, which facilitates dust suppression of the filler, avoids dust affecting the visibility at the work site, and provides a good working environment for personnel. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the conveying component structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the spray head installation structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the ramming component structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the slider mounting structure of this utility model;

[0023] Figure 6 This is a schematic diagram of the cleaning roller brush installation structure of this utility model.

[0024] In the diagram: 1. Mounting frame; 2. Support leg; 3. Feed hopper; 4. Conveying assembly; 41. Drive roller; 42. Conveyor belt; 43. Support; 44. Grooved idler roller assembly; 45. Drive motor; 5. Compaction assembly; 51. Fixing frame; 52. Baffle; 53. Hydraulic telescopic cylinder; 54. Compaction plate; 55. Lifting cylinder; 6. Water pump; 7. Arch support; 8. Water supply pipe; 9. Spray head; 10. Driven flywheel; 11. Driven flywheel; 12. Transmission belt; 13. Protective cover; 14. Hydraulic cylinder; 15. Lifting support leg; 16. Adjusting screw; 17. Slider; 18. Bearing seat; 19. Driven sprocket; 20. Cleaning roller brush; 21. Driven sprocket; 22. Guide nozzle. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] Example 1

[0027] Please see Figures 1-5 A circulating coal mine filling material conveying device includes: a mounting frame 1, a conveying component 4 and a compaction component 5; a support leg 2 is fixedly installed at the bottom end of the mounting frame 1, and a discharge hopper 3 is provided at the top of one end of the mounting frame 1;

[0028] Please see Figure 2 The conveying assembly 4 includes drive rollers 41 rotatably mounted at both ends of the mounting frame 1, a conveyor belt 42 wound between the two drive rollers 41, several supports 43 fixedly mounted on the surface of the mounting frame 1, a trough-shaped idler roller group 44 rotatably mounted on the surface of the supports 43, the inner wall of the conveyor belt 42 is wound around the surface of the trough-shaped idler roller group 44, a drive motor 45 is mounted on the top of one end of the mounting frame 1, the output end of the drive motor 45 is connected to the drive roller 41 at one end, a drive flywheel 10 is fixedly mounted on the output end of the drive motor 45, a driven flywheel 11 is fixedly mounted on one end of one of the drive rollers 41, the drive flywheel 10 and the driven flywheel 11 are connected by a transmission belt 12, and a protective cover 13 is mounted on one side of the mounting frame 1, the protective cover 13 covers the surface of the transmission belt 12.

[0029] In practical use: Drive rollers 41 are rotatably mounted at both ends of the mounting frame 1. When the drive motor 45 rotates, it drives the active flywheel 10 at the output end to rotate. The active flywheel 10 drives the driven flywheel 11 to rotate through the transmission belt 12. The driven flywheel 11 drives the drive roller 41 at one end to rotate, thereby driving the conveyor belt 42 to rotate and realize the conveying of the filler. A support 43 is mounted on the surface of the mounting frame 1. A trough-shaped idler roller group 44 is rotatably mounted on the surface of the support 43. The trough-shaped idler roller group 44 makes the conveyor belt 42 convey in a V-shaped structure, which on the one hand supports the conveyor belt 42, and on the other hand prevents the filler from rolling off. The protective cover 13 installed on one side of the mounting frame 1 protects the transmission belt 12 and prevents foreign objects from getting caught in it.

[0030] Please see Figure 4The compaction component 5 includes a fixed frame 51 fixedly installed at the bottom front end of the mounting frame 1. A baffle 52 is fixedly installed at the front end of the fixed frame 51. A hydraulic telescopic cylinder 53 is installed inside the fixed frame 51. A compaction pressure plate 54 is installed at the telescopic end of the hydraulic telescopic cylinder 53. A lifting cylinder 55 is also installed inside the fixed frame 51. The telescopic end of the lifting cylinder 55 is hinged to the bottom of the hydraulic telescopic cylinder 53.

[0031] In practical use: A fixed frame 51 is installed at the bottom front end of the mounting frame 1. A baffle 52 is installed at the front end of the fixed frame 51. The baffle 52 blocks the bottom packing material to prevent it from collapsing and scattering during the compaction process. A hydraulic telescopic cylinder 53 is installed inside the fixed frame 51. The extension of the hydraulic telescopic cylinder 53 drives the compaction plate 54 to gather and compact the packing material, thereby increasing the packing material's interlocking degree and improving its pressure-bearing capacity. This ensures that the packing material can effectively support the force and prevent the subsidence area of ​​the goaf from increasing. A lifting cylinder 55 is installed inside the fixed frame 51. The lifting cylinder 55 is used to adjust the lifting height of the hydraulic telescopic cylinder 53. As the packing material increases, the compaction plate 54 rises and changes accordingly under the action of the lifting cylinder 55, thus satisfying the compaction of the packing material at higher locations.

[0032] Please see Figure 1 , Figure 3 A water pump 6 is installed at the bottom of the mounting frame 1 near the discharge hopper 3. Arched supports 7 are installed on both sides of the top of the mounting frame 1. A water supply pipe 8 is installed on the surface of the arched support 7. Several spray heads 9 are fixedly installed on the surface of the water supply pipe 8. The spray heads 9 face the conveyor belt 42. One end of the water supply pipe 8 is connected to the water pump 6.

[0033] In practical use: A water pump 6 is installed at the bottom of the mounting frame 1 near the discharge hopper 3. The water pump 6 delivers external water to the water supply pipe 8. The arched bracket 7 serves to fix and support the water supply pipe 8. The water is sprayed in a mist form above the conveyor belt 42 through the spray head 9, which facilitates dust suppression of the filler, avoids dust from affecting the vision at the work site, and provides a good working environment for personnel.

[0034] Please see Figure 1 A hydraulic cylinder 14 is installed at the bottom of the support leg 2, and a lifting leg 15 is inserted inside the support leg 2. The telescopic end of the hydraulic cylinder 14 is hinged to the bottom of the lifting leg 15.

[0035] In practical use: a hydraulic cylinder 14 is installed at the bottom of the support leg 2. The extension of the hydraulic cylinder 14 drives the lifting support leg 15 inside the support leg 2 to extend and retract, so as to adjust the height of the device according to the height of the goaf area.

[0036] Please see Figure 5An adjusting screw 16 is threadedly connected to the front end of the mounting frame 1. A slider 17 is threadedly connected to the surface of the adjusting screw 16. The slider 17 slides through the surface of the mounting frame 1. A bearing seat 18 is installed on the top of the slider 17. Another drive roller 41 is rotatably installed inside the bearing seat 18.

[0037] In practical use: The front end of the mounting frame 1 is internally threaded with an adjusting screw 16. By rotating the adjusting screw 16, the slider 17 is driven to slide on the surface of the mounting frame 1. The sliding of the slider 17 drives the drive roller 41 inside the bearing seat 18 to move and adjust, which facilitates the adjustment of the tension of the conveyor belt 42.

[0038] Please see Figure 1 The mounting bracket 1 is equipped with a control panel on its exterior. The drive motor 45, hydraulic telescopic cylinder 53, lifting cylinder 55, water pump 6 and hydraulic cylinder 14 are all electrically connected to the control panel. The control panel is electrically connected to an external power supply.

[0039] In practical use: When the control panel is connected to an external power source, the drive motor 45, hydraulic telescopic cylinder 53, lifting cylinder 55, water pump 6, and hydraulic cylinder 14 are energized and controlled to work. When the control panel is disconnected from the external power source, the equipment stops running.

[0040] A fixed frame 51 is installed at the bottom front end of the mounting frame 1. A baffle 52 is installed at the front end of the fixed frame 51. The baffle 52 blocks the bottom packing material to prevent it from collapsing and scattering during the compaction process. A hydraulic telescopic cylinder 53 is installed inside the fixed frame 51. The extension of the hydraulic telescopic cylinder 53 drives the compaction plate 54 to gather and compact the packing material, thereby increasing the packing material's interlocking degree and improving its pressure-bearing capacity. This ensures that the packing material can effectively support the force and prevent the subsidence area of ​​the goaf from increasing. A lifting cylinder 55 is installed inside the fixed frame 51. The lifting cylinder 55 is used to adjust the lifting height of the hydraulic telescopic cylinder 53. As the packing material increases, the compaction plate 54 rises and changes accordingly under the action of the lifting cylinder 55, thus satisfying the compaction of the packing material at higher locations.

[0041] Example 2

[0042] Please see Figure 6 To facilitate cleaning of the conveyor belt 42, the difference from embodiment 1 is that a drive sprocket 19 is installed at one end of another drive roller 41, a cleaning roller brush 20 is rotatably installed at the bottom of the mounting frame 1, the cleaning roller brush 20 contacts the surface of the conveyor belt 42, a driven sprocket 21 is installed at one end of the cleaning roller brush 20, the drive sprocket 19 and the driven sprocket 21 are connected by chain drive, and a guide nozzle 22 is provided at the bottom of the cleaning roller brush 20.

[0043] In practical use: One end of the other drive roller 41 is equipped with a drive sprocket 19. When the drive roller 41 rotates, it drives the drive sprocket 19 to rotate. The drive sprocket 19 drives the driven sprocket 21 to rotate through the chain, thereby driving the cleaning roller brush 20 to brush the conveyor belt 42, so that the surface of the conveyor belt 42 is kept clean and to prevent mud and dust from sticking to the surface of the conveyor belt 42 during the dust removal process. The cleaned mud and dust are discharged to one side through the guide nozzle 22.

[0044] The contents not described in detail in this description are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A looped coal mine backfill material conveyor, characterised in that, include: Mounting frame (1), with a support leg (2) fixedly installed at the bottom end of the mounting frame (1), and a feeding hopper (3) provided at the top of one end of the mounting frame (1). The conveying assembly (4) includes drive rollers (41) rotatably mounted at both ends of the mounting frame (1), a conveyor belt (42) is wound between the two drive rollers (41), a plurality of supports (43) are fixedly mounted on the surface of the mounting frame (1), a trough roller group (44) is rotatably mounted on the surface of the supports (43), the inner wall of the conveyor belt (42) is wound around the surface of the trough roller group (44), a drive motor (45) is mounted on the top of one end of the mounting frame (1), and the output end of the drive motor (45) is connected to the drive roller (41) at one end of the frame. The compaction component (5) includes a fixed frame (51) fixedly installed at the bottom of the front end of the mounting frame (1). A baffle (52) is fixedly installed at the front end of the fixed frame (51). A hydraulic telescopic cylinder (53) is installed inside the fixed frame (51). A compaction plate (54) is installed at the telescopic end of the hydraulic telescopic cylinder (53). A lifting cylinder (55) is also installed inside the fixed frame (51). The telescopic end of the lifting cylinder (55) is hinged to the bottom of the hydraulic telescopic cylinder (53).

2. A looped coal mine backfill material conveyor as claimed in claim 1 wherein: A water pump (6) is installed at the bottom of the mounting frame (1) near the end of the discharge hopper (3). Arched brackets (7) are installed on both sides of the top of the mounting frame (1). A water supply pipe (8) is installed on the surface of the arched bracket (7). Several spray heads (9) are fixedly installed on the surface of the water supply pipe (8). The spray heads (9) face the conveyor belt (42). One end of the water supply pipe (8) is connected to the water pump (6).

3. A looped coal mine backfill material conveyor as claimed in claim 1 wherein: The output end of the drive motor (45) is fixedly equipped with an active flywheel (10), and one end of one of the drive rollers (41) is fixedly equipped with a driven flywheel (11). The active flywheel (10) and the driven flywheel (11) are connected by a transmission belt (12).

4. A looped coal mine backfill material conveyor as claimed in claim 1 wherein: A hydraulic cylinder (14) is installed at the bottom of the support leg (2), and a lifting leg (15) is inserted inside the support leg (2). The telescopic end of the hydraulic cylinder (14) is hinged to the bottom of the lifting leg (15).

5. A looped coal mine backfill material conveyor as claimed in claim 1 wherein: The front end of the mounting bracket (1) is internally threaded with an adjusting screw (16), and the surface of the adjusting screw (16) is threaded with a slider (17). The slider (17) slides through the surface of the mounting bracket (1), and a bearing seat (18) is installed on the top of the slider (17). Another drive roller (41) is rotatably installed inside the bearing seat (18).

6. A looped coal mine backfill material conveyor as claimed in claim 1 wherein: A protective cover (13) is installed on one side of the mounting bracket (1), and the protective cover (13) covers the surface of the transmission belt (12).

7. A looped coal mine backfill material conveyor as claimed in claim 4 wherein: The mounting bracket (1) is equipped with a control panel on its exterior. The drive motor (45), hydraulic telescopic cylinder (53), lifting cylinder (55), water pump (6) and hydraulic cylinder (14) are all electrically connected to the control panel. The control panel is electrically connected to an external power supply.

8. A looped coal mine backfill material conveyor as claimed in claim 3 wherein: One end of the other drive roller (41) is equipped with a drive sprocket (19), and a cleaning roller brush (20) is rotatably mounted on the bottom of the mounting frame (1). The cleaning roller brush (20) is in contact with the surface of the conveyor belt (42). One end of the cleaning roller brush (20) is equipped with a driven sprocket (21). The drive sprocket (19) and the driven sprocket (21) are connected by chain drive. The bottom of the cleaning roller brush (20) is provided with a guide nozzle (22).

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