Dust removal device for coal mine roadway tunneling

Abstract

The utility model relates to the technical field of dust removal devices, in particular to a dust removal device for coal mine roadway tunneling, which comprises two groups of symmetrically arranged bases, foam machines are fixedly mounted at the front ends of the upper surfaces of the two groups of bases, and folding pipes are fixedly mounted at discharge ports of the foam machines. V-shaped shear type adjusting frames are symmetrically and movably installed at the two ends of the sides, close to each other, between the outer surfaces of the two bases, a connecting base is fixedly arranged on the lower surface of the movable cross hinge position of the shear type adjusting frames, a two-way screw rod is jointly and spirally installed in the middle of the rear end of the outer surface of the connecting base in a penetrating and inserting mode, and a motor is fixedly installed at the rear end of the two-way screw rod. And mixing boxes are fixedly mounted in the middles of the upper surfaces of the two bases. According to the utility model, the dust removal efficiency is improved, and the problem of humidity increase in the roadway is avoided; and secondly, the device is suitable for passing in narrow sections in the roadway tunneling process.

Description

Technical Field

[0001] This utility model relates to the technical field of dust removal devices, and more specifically, to a dust removal device for coal mine roadway excavation. Background Technology

[0002] Coal mine roadways refer to various underground passages drilled in coal mines, mainly used for transporting ore, ventilation and drainage, pedestrians and equipment installation, etc. During the excavation and opening of coal mine roadways, a large amount of coal dust is easily generated, which not only affects the visibility of the tunneling process but also poses a coal dust hazard. Therefore, dust removal is necessary during the excavation of coal mine roadways.

[0003] Existing dust suppression methods for coal mine roadway excavation typically employ atomization equipment. However, atomization dust suppression is inefficient and can easily lead to increased humidity in the roadway. Furthermore, the passable path during roadway excavation is difficult to guarantee, resulting in inconvenience for atomization equipment.

[0004] Based on this, a dust removal device for coal mine roadway excavation is proposed. Summary of the Invention

[0005] The main objective of this invention is to provide a dust removal device for coal mine roadway excavation, so as to overcome the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides a dust removal device for coal mine roadway excavation, comprising two symmetrically arranged bases. A foam machine is fixedly installed at the front end of the upper surface of each of the two bases. A folded tube is fixedly installed at the discharge port of the foam machine. A "V"-shaped scissor-type adjustment frame is symmetrically and movably installed at both ends of the outer surface of the two bases on the side closest to each other. A connecting seat is fixedly provided on the lower surface of the movable cross hinge of the scissor-type adjustment frame. A bidirectional screw is spirally inserted and installed in the middle of the rear end of the outer surface of the connecting seat.

[0007] A motor is fixedly installed at the rear end of the bidirectional screw. A mixing box is fixedly installed in the middle of the upper surface of both sets of bases. Support plates are fixedly installed on both sides of the outer surface of the mixing box. A storage box is fixedly installed on the side of the outer surface of the support plates that is close to each other.

[0008] As a further improvement of this utility model, baffles are fixedly provided on the opposite sides of the upper surfaces of the two sets of bases, handrails are fixedly provided at the rear ends of the upper surfaces of the two sets of bases, and batteries are fixedly installed at the rear ends of the upper surfaces of the two sets of bases. The batteries are located in the gap between the baffles and the handrails, and electric casters are fixedly installed at the four corners of the lower surfaces of the two sets of bases.

[0009] As a further improvement of this utility model, a guide pipe is fixedly installed at the inlet port of the foam machine, and the other end of the guide pipe is connected to the mixing box.

[0010] As a further improvement of this utility model, both ends of the outer surface of the bidirectional screw are movably fitted with mounting parts, and both ends of the outer surface of the mounting parts are movably fitted with connecting ears. The upper surface of the connecting ears is fixedly connected to the lower surface of the base. An assembly frame is fixedly fitted and installed on the outer surface of the motor, and the assembly frame is fixedly connected to both ends of one of the mounting parts.

[0011] As a further improvement of this utility model, an opening is provided in the middle of the upper surface of both the mixing box and the storage box, and a sealing nut is screwed into the inner surface of both the mixing box and the storage box. A flow port is provided through the outer surface of the side of the support plate that contacts the storage box.

[0012] The beneficial effects of this utility model are:

[0013] This utility model covers the tunnel excavation point of a coal mine with foam, which adsorbs coal dust and reduces its spread, thereby achieving source dust removal and improving dust removal efficiency. At the same time, it helps to avoid the problem of increased humidity in the tunnel caused by atomized dust removal.

[0014] This invention allows for adjustment of the passage size of the dust removal device, making it suitable for use in narrow sections during tunnel excavation. This avoids the problem of dust removal being affected by the inconvenience of the dust removal device in narrow sections of tunnel excavation, and helps to provide stable dust removal support for tunnel excavation. Attached Figure Description

[0015] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0016] Figure 1 This is a front three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a three-dimensional structural diagram of the rear side of this utility model;

[0018] Figure 3 This is a schematic diagram of the base structure of this utility model.

[0019] Figure 4 This is a bottom view of the disassembled base structure of this utility model;

[0020] Figure 5 This is a sectional view of the disassembled structure of the mixing box of this utility model.

[0021] In the diagram: 1. Base; 101. Baffle; 102. Battery; 103. Handrail; 104. Electric caster wheel; 2. Foam machine; 201. Folded tube; 202. Guide tube; 3. Scissor-type adjustment frame; 301. Connecting seat; 4. Two-way screw; 401. Assembly kit; 402. Connecting ear; 403. Assembly frame; 5. Motor; 6. Mixing box; 601. Storage box; 602. Sealing nut; 603. Support plate; 604. Flow port. Detailed Implementation

[0022] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0024] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of the utility model described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0025] To make the objectives and advantages of this utility model clearer, the utility model will be further described below with reference to the embodiments; it should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0026] Please see Figures 1-5As shown, a dust removal device for coal mine roadway excavation includes two symmetrically arranged bases 1. A baffle 101 is fixedly provided on the side of the upper surface of the two bases 1 that is far apart from each other. A handrail 103 is fixedly provided at the rear end of the upper surface of the two bases 1. A battery 102 is fixedly installed at the rear end of the upper surface of the two bases 1. The battery 102 is located in the gap between the baffle 101 and the handrail 103. Electric casters 104 are fixedly installed at the four corners of the lower surface of the two bases 1 to facilitate flexible movement of the device.

[0027] Foam machines 2 are fixedly installed on the front end of the upper surface of both sets of bases 1. A folded pipe 201 is fixedly installed at the discharge port of the foam machine 2, and a guide pipe 202 is fixedly installed at the inlet port of the foam machine 2. The other end of the guide pipe 202 is connected to the mixing box 6. A V-shaped scissor-type adjustment frame 3 is symmetrically and movably installed at both ends of the outer surface of the two sets of bases 1 on the side closest to each other. A connecting seat 301 is fixedly installed on the lower surface of the scissor-type adjustment frame 3 at the movable cross hinge. A bidirectional screw 4 is spirally inserted and installed in the middle of the rear end of the outer surface of the connecting seat 301. The foam machine 2 sprays foam through the folded pipe 201 to cover the dust source. The mixing box 6 and the guide pipe 202 form a gas-liquid mixing channel to improve the dust adsorption efficiency.

[0028] Both ends of the outer surface of the bidirectional screw 4 are movably fitted with a fitting 401. Both ends of the outer surface of the fitting 401 are movably fitted with a connecting ear 402. The upper surface of the connecting ear 402 is fixedly connected to the lower surface of the base 1. The rear end of the bidirectional screw 4 is fixedly fitted with a motor 5. The outer surface of the motor 5 is fitted with a mounting bracket 403. The mounting bracket 403 is fixedly connected to both ends of one of the fittings 401.

[0029] A mixing tank 6 is fixedly installed in the middle of the upper surface of both sets of bases 1. Support plates 603 are fixedly installed on both sides of the outer surface of the mixing tank 6. A storage tank 601 is fixedly installed on the side of the outer surface of the support plates 603 that is close to each other. An opening is provided in the middle of the upper surface of both the mixing tank 6 and the storage tank 601. A sealing nut 602 is screwed into the inner surface of both the mixing tank 6 and the storage tank 601 through the opening. A flow port 604 is provided through the outer surface of the support plate 603 on the side that contacts the storage tank 601. The mixing tank 6 and the storage tank 601 are connected through the opening, allowing for quick assembly and disassembly of the sealing nut 602, facilitating the replenishment of foaming agent and purified water.

[0030] The storage battery 102 is electrically connected to the electric caster 104, the foam machine 2, and the motor 5.

[0031] When using this utility model, the sealing nut 602 on the upper surface of the mixing box 6 and the storage box 601 can be unscrewed to open the opening. At this time, foaming agent can be added into the mixing box 6 through the opening, and pure water can be added into the storage box 601 at the same time. When adding pure water into the storage box 601, its volume should be lower than the position of the flow port 604. After the addition is completed, the sealing nut 602 can be resealed, and the handrail 103 can be used to control the dust removal device to move into the tunnel using the electric universal wheel 104.

[0032] When the dust removal device moves to the tunnel excavation point, the motor 5 can be started to control the bidirectional screw 4 to rotate clockwise. At this time, the connecting seats 301 at both ends of the outer surface of the bidirectional screw 4 can close together as the bidirectional screw 4 rotates clockwise, thereby controlling the scissor-type adjustment frame 3 to close. At this time, the electric universal wheel 104 can rotate in the direction of the scissor-type adjustment frame 3 to control the two sets of bases 1 to close together. When encountering narrow sections during tunnel excavation, the above operation can be used to control the two sets of bases 1 to close together, thereby reducing the passage size of the base 1 for passage in narrow sections during tunnel excavation, thus ensuring the stability of dust removal during tunnel excavation.

[0033] Secondly, when the two sets of bases 1 are closed, the baffle 101 will push the mixing box 6 to close together, thereby squeezing the storage box 601. Under this condition, the storage box 601 can be folded and overlapped, thereby squeezing the pure water stored inside and controlling it to enter the mixing box 6 through the flow port 604. At this time, the pure water comes into contact with the foaming agent in the mixing box 6 and reacts to produce foam. In the case of the dust removal device causing the reaction foam to be generated in the mixing box 6 in the narrow passage, the foaming agent can be added again when the tunneling point is reached.

[0034] At this point, the folded tube 201 can be stretched out and aligned with the source point of the tunnel excavation. The foam machine 2 is then started, and the foam is extracted from the mixing box 6 using the guide pipe 202. The extracted foam is further catalyzed in the foam machine 2 and sprayed onto the excavation source point through the folded tube 201, thus covering the excavation mechanism of the excavation equipment and the excavation source point. At this point, the excavation equipment can begin tunnel excavation, and the coal dust generated during excavation can be absorbed by the covering foam to prevent the spread of coal dust and achieve the dust removal effect.

[0035] The above are merely embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A dust removal device for coal mine roadway excavation, comprising two symmetrically arranged bases (1), wherein a foam machine (2) is fixedly installed at the front end of the upper surface of each of the two bases (1), and a folded pipe (201) is fixedly installed at the discharge port of the foam machine (2), characterized in that, Two sets of bases (1) are symmetrically and movably installed at the two ends of the outer surface of the bases (1) on the side close to each other. A scissor-type adjustment frame (3) in the shape of "V" is installed. A connecting seat (301) is fixedly provided on the lower surface of the scissor-type adjustment frame (3) at the movable cross hinge. A bidirectional screw (4) is spirally inserted and installed in the middle of the rear end of the outer surface of the connecting seat (301). A motor (5) is fixedly installed at the rear end of the bidirectional screw (4). A mixing box (6) is fixedly installed in the middle of the upper surface of the two sets of bases (1). Support plates (603) are fixedly installed on both sides of the outer surface of the mixing box (6). A storage box (601) is fixedly installed on the side of the outer surface of the support plates (603) that are close to each other.

2. The dust removal device for coal mine roadway excavation according to claim 1, characterized in that, A baffle (101) is fixedly provided on the side of the upper surface of the two sets of bases (1) that is far apart from each other. A handrail (103) is fixedly provided at the rear end of the upper surface of the two sets of bases (1). A battery (102) is fixedly installed at the rear end of the upper surface of the two sets of bases (1). The battery (102) is located at the gap between the baffle (101) and the handrail (103). Electric casters (104) are fixedly installed at the four corners of the lower surface of the two sets of bases (1).

3. The dust removal device for coal mine roadway excavation according to claim 1, characterized in that, The foam machine (2) has a guide pipe (202) fixedly installed at its inlet port, and the other end of the guide pipe (202) is connected to the mixing box (6).

4. A dust removal device for coal mine roadway excavation according to claim 1, characterized in that, Both ends of the outer surface of the bidirectional screw (4) are movably fitted with a fitting (401), and both ends of the outer surface of the fitting (401) are movably fitted with a connecting ear (402). The upper surface of the connecting ear (402) is fixedly connected to the lower surface of the base (1). The outer surface of the motor (5) is fitted with a mounting bracket (403), and the mounting bracket (403) is fixedly connected to both ends of one of the fittings (401).

5. A dust removal device for coal mine roadway excavation according to claim 1, characterized in that, Both the mixing tank (6) and the storage tank (601) have openings in the middle of their upper surfaces. Both the mixing tank (6) and the storage tank (601) have sealing nuts (602) screwed into the inner surfaces of their openings. The outer surface of the support plate (603) that is in contact with the storage tank (601) has a flow port (604) through it.

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