Spraying and dust settling device for coal face belt conveyor

Abstract

The utility model discloses a coal face rubber belt conveyor spraying and dust settling device, which relates to the technical field of coal mine dust settling and comprises support frames fixedly mounted on two sides of a rubber belt conveyor, atomizing nozzles mounted on the support frames and a water conveying system connected with the atomizing nozzles. The supporting frame comprises two stand columns oppositely arranged left and right and a net pulling assembly connected between the two stand columns. The net pulling assembly is of a crossed connecting rod hinged grid structure. Two ends of the support are respectively arranged on the two stand columns; the atomizing nozzles are uniformly mounted on the crossed connecting rod hinged grid structure; the water conveying system comprises a flexible pipeline connected between the atomizing nozzles at adjacent heights, a water conveying pipeline connected with the flexible pipeline and a water pump connected with the water tank and the water conveying pipeline; and the deformation degree of the flexible pipeline is reserved. The atomization nozzles are uniformly fixed on the net pulling assembly, so that only two upright posts are disassembled and assembled, the disassembly of the plurality of atomization nozzles is realized, the working efficiency is improved, and the safety production of a coal face is guaranteed.

Description

A dust suppression spray device for a belt conveyor in a coal mining face Technical Field

[0001] This utility model relates to the field of dust suppression technology in coal mines, and in particular to a spray dust suppression device for a belt conveyor in a coal mining face. Background Technology

[0002] In coal mining operations, belt conveyors are the core equipment for coal transportation. However, during the operation of belt conveyors, the loading, unloading, and transfer of coal, as well as the friction between the belt and the material, generate a large amount of dust. This dust permeates the coal face, significantly reducing visibility and severely affecting workers' vision and operational safety. It also causes serious damage to workers' respiratory systems and skin, and long-term exposure to high concentrations of dust can lead to occupational diseases such as pneumoconiosis. Furthermore, high concentrations of dust can also cause explosions under certain conditions, posing a significant safety hazard to coal mine production.

[0003] Currently, the nozzle installation method used on both sides of the existing belt conveyor in coal mining faces has significant drawbacks. Nozzles typically need to be installed one by one and fixed to both sides of the conveyor. This installation method not only consumes a large amount of manpower and time, but also makes it difficult to guarantee installation accuracy, easily leading to nozzle misalignment, uneven spray coverage, and affecting dust suppression. When maintenance, replacement, or disassembly of the nozzles is required, it also needs to be done one by one, a cumbersome and complex process that greatly reduces work efficiency and increases the operating costs of coal mine production. Summary of the Invention

[0004] The purpose of this invention is to provide a dust suppression spray device for a belt conveyor in a coal mining face. This device uses a support frame to enable the rapid installation and disassembly of multiple nozzles, improving work efficiency. Simultaneously, it ensures consistent spacing between adjacent nozzles, guaranteeing uniform spray coverage, effective dust suppression, and safeguarding the safety of coal mining operations and the health of workers.

[0005] To achieve the above objectives, this utility model provides a dust suppression spray device for a coal mining face belt conveyor, comprising a support frame fixedly installed on both sides of the belt conveyor, atomizing nozzles installed on the support frame, and a water supply system connected to the atomizing nozzles; the support frame includes two columns arranged opposite each other and a mesh assembly connected between the two columns; the bottom of the columns is fixedly installed on a corresponding support beam on one side of the belt conveyor, and the top of the mesh assembly is fixedly installed; the mesh assembly is a cross-linked hinged mesh structure; its two ends are respectively installed on the two columns; the atomizing nozzles are evenly installed on the cross-linked hinged mesh structure; the water supply system includes a flexible pipe connecting atomizing nozzles at adjacent heights, a water supply pipe connecting the flexible pipe, and a water pump connecting a water tank and the water supply pipe; the flexible pipe is designed to accommodate deformation.

[0006] By adopting the above structure, two columns are set up, and a mesh assembly is installed between the two columns to evenly fix the atomizing nozzles on the mesh assembly. This allows for the disassembly of multiple atomizing nozzles by simply removing and installing two columns, thus improving work efficiency. At the same time, using the mesh as a reference, the atomizing nozzles can be evenly fixed, ensuring that the spacing between adjacent nozzles remains consistent. This guarantees uniform spray coverage, good dust suppression effect, and protects the safety of coal mining face production and the health of workers.

[0007] Preferably, the bottom of the column is provided with fixing holes, and the support beam is provided with threaded holes. The fixing holes and threaded holes are connected by a fixing plate. This structure enables the column to be stably and quickly fixed.

[0008] Preferably, the mesh assembly includes multiple interlocking cross-shaped units; each cross-shaped unit includes two connecting rods of the same length, hinged at their center points to form the cross-shaped unit; the four endpoints of each cross-shaped unit are hinged to the endpoints of adjacent cross-shaped units, forming a periodically repeating grid topology, creating a planar grid structure; a fixed hinge seat and a sliding hinge seat are mounted on the column; the fixed hinge seat is fixed to the column, and the sliding hinge seat is located below the fixed hinge seat and slides up and down on the column, with a slide rail for the sliding hinge seat to slide up and down; the two free endpoints at the top of the left and right sides of the mesh assembly are hinged to the two fixed hinge seats; and the two free endpoints at the bottom of the left and right sides of the mesh assembly are hinged to the two sliding hinge seats. This structure allows adjustment of the distance between the two columns, thus adjusting the distance between adjacent atomizing nozzles, while maintaining uniform adjustment, ensuring the atomization coverage and uniformity.

[0009] Preferably, the atomizing nozzles are evenly installed at the same positions in the cross-shaped units. This structural arrangement ensures the uniformity of the atomizing nozzle positions.

[0010] Preferably, the atomizing nozzles are positioned at the central hinge node and the end hinge node; only one nozzle is positioned at the overlapping location. This structural arrangement creates three atomizing layers (top, middle, and bottom), improving dust suppression and atomization area.

[0011] Preferably, both the central hinge node and the end hinge nodes are hinged using hollow rotating shafts; the atomizing nozzle includes a nozzle body, within which a spray chamber is provided; an inlet and an outlet are respectively provided on the left and right sides of the nozzle body; a nozzle mounting hole is provided in the middle of the nozzle body; the nozzle mounting hole communicates with the spray chamber; an atomizing nozzle is installed on the nozzle mounting hole; the nozzle body also has an insert rod that does not communicate with the spray chamber and is located in the opposite direction to the nozzle mounting hole; the insert rod passes through the central hole of the hollow rotating shaft; a nut is screwed to one end of the insert rod that protrudes from the hollow rotating shaft; the nut fixes the nozzle body to the hollow rotating shaft. This structural design achieves stable installation of the atomizing nozzle.

[0012] After adopting the above technical solution, the beneficial effects of this utility model are:

[0013] This utility model provides a dust suppression spray device for a coal mining face conveyor belt. It solves the technical problem of cumbersome individual fixing and disassembly of atomizing nozzles on both sides of a coal mining face conveyor belt in existing technologies. By setting up a support frame, this utility model enables the rapid installation and disassembly of multiple nozzles, improving work efficiency. Simultaneously, it ensures consistent spacing between adjacent nozzles, guaranteeing uniform spray coverage, effective dust suppression, and protecting the safety of coal mining faces and the health of workers. Attached Figure Description

[0014] Figure 1 is a schematic diagram of the position of a spray dust suppression device for a coal mining face conveyor belt conveyor installed on the conveyor belt conveyor according to the present invention.

[0015] Figure 2 is a schematic diagram of a dust suppression spray device for a belt conveyor in a coal mining face as shown in Figure 1.

[0016] Figure 3 is a magnified view of part A in Figure 2;

[0017] Figure 4 is a schematic diagram of the support frame in Figure 2;

[0018] Figure 5 is a schematic diagram of the atomizing nozzle.

[0019] In the diagram, 1 is a belt conveyor, 11 is a support beam, 2 is a support frame, 21 is a column, 211 is a fixing hole, 212 is a fixing plate, 213 is a sliding hinge seat, 214 is a fixed hinge seat, 22 is a mesh assembly, 221 is a connecting rod, 3 is an atomizing nozzle, 31 is a nozzle body, 311 is a liquid inlet, 312 is a liquid outlet, 313 is a nozzle mounting hole, 32 is an atomizing nozzle, 33 is an insertion rod, and 41 is a flexible pipe. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] The orientations mentioned in this specification are based on the orientation of the spray dust suppression device for a coal mining face conveyor during normal operation. They do not limit the orientation during storage and transportation, but only represent relative positional relationships, not absolute positional relationships.

[0022] As shown in Figures 1 and 2, a dust suppression spray device for a coal mining face conveyor belt includes a support frame 2 fixedly installed on both sides of the conveyor belt 1, an atomizing nozzle 3 installed on the support frame 2, and a water supply system connected to the atomizing nozzle 3.

[0023] The support frame 2 includes two uprights 21 arranged opposite each other and a mesh assembly 22 connecting the two uprights 21. The bottom of the uprights 21 is fixedly installed on the corresponding support beam 11 on one side of the belt conveyor 1. The fixing method can be a direct bolt connection or a binding rope. In this embodiment, to ensure installation accuracy, a fixing hole 211 is provided at the bottom of the upright 21, and a threaded hole is provided on the support beam 11. The fixing hole 211 and the threaded hole are connected by a fixing plate 212, which fixes the upright 21 to the support beam 11. The mesh assembly 22 is installed on the upright 21.

[0024] As shown in Figure 4, the mesh assembly 22 is a cross-linked hinged mesh structure. Specifically, the mesh assembly 22 includes multiple interlocking cross-shaped units. Each cross-shaped unit includes two connecting rods 221 of the same length, hinged at their center point (hereinafter referred to as the center hinge node) to form the cross-shaped unit, allowing the connecting rods 221 to rotate relative to each other in the plane. The four endpoints of each cross-shaped unit (the ends of the connecting rods 221) are hinged to the endpoints of adjacent cross-shaped units (hereinafter referred to as end hinge nodes), forming a periodically repeating mesh topology and creating a planar mesh structure.

[0025] A fixed hinge seat 214 and a sliding hinge seat 213 are installed on the column 21. The fixed hinge seat 214 is fixed on the column 21, and the sliding hinge seat 213 is located below the fixed hinge seat 214 and is slidably installed on the column 21. The column 21 is provided with a slide rail for the sliding hinge seat 213 to slide up and down.

[0026] The two free ends on the upper left and right sides of the mesh assembly 22 are hinged to two fixed hinge seats 214; while the two free ends on the lower left and right sides of the mesh assembly 22 are hinged to two sliding hinge seats 213.

[0027] The atomizing nozzles 3 are evenly installed at the same positions in the cross-shaped units. One or more atomizing nozzles 3 can be installed on one cross-shaped unit. If only one nozzle is installed, it can be located at the central hinge node. If multiple nozzles are installed, they can be located at both the central and end hinge nodes. In this embodiment, it is preferable to install one atomizing nozzle 3 at both the central and hinge node positions, with only one nozzle at overlapping positions. This arrangement forms three atomization layers (upper, middle, and lower), improving dust suppression and atomization area. The atomizing nozzles 3 can be fixed to the connecting rod 221 using cable ties. In this embodiment, for stability, hollow hinges are used for hinges at both the central and end hinge nodes.

[0028] As shown in Figures 3 and 5, the atomizing nozzle 3 includes a nozzle body 31, within which a spray chamber is provided. An inlet 311 and an outlet 312 are respectively provided on the left and right sides of the nozzle body 31. A nozzle mounting hole 313 is provided in the middle of the nozzle body 31, communicating with the spray chamber. An atomizing nozzle 32 is mounted on the nozzle mounting hole 313. The nozzle body 31 also has a rod 33, which is not connected to the spray chamber and is positioned in the opposite direction to the nozzle mounting hole 313. The rod 33 passes through the central hole of a hollow rotating shaft. A nut is screwed onto one end of the rod 33 extending out of the hollow rotating shaft, and the nut secures the nozzle body 31 to the hollow rotating shaft.

[0029] The water supply system includes a flexible pipe 41 connecting atomizing nozzles 3 at adjacent heights, a water supply pipe connecting the flexible pipe 41, and a water pump connecting the water tank and the water supply pipe. The flexible pipe is designed to accommodate deformation.

[0030] During installation, the mesh assembly 22 is fixedly mounted on two uprights 21; the atomizing nozzles 3 are installed on the mesh assembly 22; and the flexible pipe 41 is installed. The distance between the two uprights 21 is adjusted, and the flexible pipe 41 adapts to the distance between adjacent atomizing nozzles 32 by adjusting its own curvature. The structure of the mesh assembly 22 ensures that the distance between adjacent atomizing nozzles 32 remains consistent, thereby ensuring uniform spray coverage and good dust suppression effect. The fixing plate 212 is fixedly mounted on the corresponding support beams 11 on both sides of the belt conveyor with bolts, ensuring that the fixing plate is firmly installed and level. During disassembly, all atomizing nozzles 32 can be disassembled by removing only the two uprights 21, improving disassembly and maintenance efficiency.

[0031] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A dust suppression spray device for a belt conveyor in a coal mining face, characterized in that: The system includes support frames fixedly installed on both sides of a belt conveyor, atomizing nozzles mounted on the support frames, and a water supply system connected to the atomizing nozzles. The support frames include two opposing columns and a mesh assembly connecting the two columns. The bottom of each column is fixedly installed on a corresponding support beam on one side of the belt conveyor, and the top of the mesh assembly is fixedly installed. The mesh assembly is a cross-linked hinged mesh structure, with its two ends respectively mounted on the two columns. The atomizing nozzles are evenly installed on the cross-linked hinged mesh structure. The water supply system includes flexible pipes connecting atomizing nozzles of adjacent heights, a water supply pipe connecting the flexible pipes, and a water pump connecting a water tank and the water supply pipes. The flexible pipes are designed to accommodate deformation.

2. The dust suppression spray device for a coal mining face belt conveyor according to claim 1, characterized in that: The bottom of the column is provided with a fixing hole, and the support beam is provided with a threaded hole. The fixing hole and the threaded hole are connected by a fixing plate.

3. The dust suppression spray device for a coal mining face belt conveyor according to claim 1, characterized in that: The mesh assembly includes multiple interlocking cross-shaped units; each cross-shaped unit includes two connecting rods of the same length, which are hinged at their center points to form a cross-shaped unit; the four endpoints of each cross-shaped unit are hinged to the endpoints of adjacent cross-shaped units, forming a periodically repeating grid topology and a planar grid structure; a fixed hinge seat and a sliding hinge seat are installed on the column; the fixed hinge seat is fixed to the column, and the sliding hinge seat is located below the fixed hinge seat and is slidably mounted on the column; the column is provided with a slide rail for the sliding hinge seat to slide up and down; the two free endpoints on the upper left and right sides of the mesh assembly are hinged to the two fixed hinge seats; and the two free endpoints on the lower left and right sides of the mesh assembly are hinged to the two sliding hinge seats.

4. A dust suppression spray device for a coal mining face belt conveyor according to claim 3, characterized in that: The atomizing nozzles are evenly installed in the same position on the cross-shaped unit.

5. A dust suppression spray device for a coal mining face belt conveyor according to claim 4, characterized in that: The atomizing nozzles are located at the central hinge node and the end hinge node; only one nozzle is installed at the overlapping position.

6. A dust suppression spray device for a coal mining face belt conveyor according to claim 5, characterized in that: Both the central hinge node and the end hinge nodes are hinged using hollow rotating shafts; the atomizing nozzle includes a nozzle body, and a spray cavity is provided inside the nozzle body; an inlet and an outlet are respectively provided on the left and right sides of the nozzle body; a nozzle mounting hole is provided in the middle of the nozzle body; the nozzle mounting hole communicates with the spray cavity; an atomizing nozzle is installed on the nozzle mounting hole; the nozzle body is also provided with an insert rod that does not communicate with the spray cavity and is located in the opposite direction to the nozzle mounting hole; the insert rod passes through the central hole of the hollow rotating shaft; a nut is screwed to one end of the insert rod that protrudes from the hollow rotating shaft; the nut fixes the nozzle body to the hollow rotating shaft.

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