Dust fall device for mine haulage roadway

Abstract

The utility model provides a dust falling device for a mine haulage roadway, and relates to the field of dust removing devices. Comprising a water curtain structure, the water curtain structure comprises a mounting frame conforming to the section shape of a roadway, a dust catching net fixedly connected to the inner side of the mounting frame and a water inlet pipe fixedly connected to the edge of the mounting frame, and a pedestrian channel is fixedly connected to the center of the water curtain structure, penetrates through the water curtain structure and extends towards the two sides. Dust blocking doors are hinged to the two ends of the pedestrian passageway, sewage treatment mechanisms are arranged on the two sides of the water curtain structure and comprise water collecting tanks symmetrically arranged on the two sides of the pedestrian passageway, a connecting pipe is connected and communicated between the two water collecting tanks, and the connecting pipe is connected and communicated with a water pumping pipe. A flow guide slope is arranged at the front end of the water collecting tank and fixedly connected with the bottom end of the mounting frame, and a filter plate is arranged on the inner side of the water collecting tank. The dust catching net solves the problems that a dust catching net in an existing water curtain dust removal technology is inconvenient for workers to pass through and water resources are wasted.

Description

Technical Field

[0001] The utility model provides a dust reduction device for a mine transport tunnel, and relates to the field of dust removal devices. Background Art

[0002] The tunnel is a passageway drilled between the surface and the ore body, which is used for ore transportation, ventilation, drainage, pedestrians, and various necessary preparations for the new excavation of ore for metallurgical equipment. These passageways are collectively referred to as tunnels. The tunnel includes vertical shafts and blind vertical shafts. During the mining process, a large amount of dust is generated due to processing and crushing. At the same time, due to the small space in the tunnel, the air in the tunnel is polluted. A large amount of dust will cause potential harm to the surrounding environment and human body.

[0003] In the existing technology, wet dust removal technology is mainly used in underground coal mines in my country to deal with dust generated during production operations, including spray dust reduction technology, foam dust removal technology, water curtain dust removal technology, water bath dust removal technology, water film dust removal technology, etc. Among them, the core of the water curtain dust removal technology is to arrange a water curtain dust catcher net in the tunnel section. The droplets sprayed by the high-pressure nozzle collide with the dust catcher net to form a water film on the pore structure on the surface of the dust catcher net. When the airflow in the tunnel carries dust particles through the dust catcher net, it will be intercepted by the water film, and the water film on the dust catcher net will be broken up again to form smaller droplets combined with dust particles, thereby achieving the purpose of dust removal. In order to facilitate the entry and exit of staff, a metal mesh door is usually installed on the dust catcher net, but when staff pass through the dust catcher net, they are easily wetted, and the sewage flowing down from the dust catcher net is directly drained from the sink and treated without secondary utilization, resulting in a waste of water resources. To this end, we propose a dust reduction device for mine transportation tunnels. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the dust collecting net in the existing water curtain dust removal technology is inconvenient for workers to pass through and water resources are wasted.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model is: a dust reduction device for mine transportation tunnels, including a water curtain structure, the water curtain structure including a mounting frame that matches the cross-sectional shape of the tunnel, a dust catching net fixedly connected to the inner side of the mounting frame, and a water inlet pipe fixedly connected to the edge of the mounting frame, a pedestrian passage fixedly connected at the center of the water curtain structure, the pedestrian passage passes through the water curtain structure and extends to both sides, dust-blocking doors are hinged at both ends of the pedestrian passage, sewage treatment mechanisms are arranged on both sides of the water curtain structure, the sewage treatment mechanisms include water collecting tanks symmetrically arranged on both sides of the pedestrian passage, and the two water collecting tanks are connected by a connecting pipe, the connecting pipe is connected by a pumping pipe, a diversion slope is arranged at the front end of the water collecting tank and is fixedly connected to the bottom end of the mounting frame, and a filter plate is arranged on the inside of the water collecting tank.

[0006] Preferably, a box cover is hinged on the top of the water collecting box, slots are symmetrically fixedly connected to the inner side of the water collecting box, the filter plates are movably inserted inside the slots, and a plurality of the filter plates are equidistantly arranged.

[0007] Preferably, mud retaining ridges are fixedly connected to the diversion slope at equal intervals.

[0008] Preferably, fixing frames are fixedly connected to both sides of the pedestrian passage, and exhaust fans are fixedly connected to the fixing frames.

[0009] Preferably, reinforcing ribs are fixedly connected to the inner side of the mounting frame.

[0010] Preferably, water outlet pipes are fixedly connected to the water inlet pipe at equal distances, and an atomizing nozzle is fixedly connected to the end of the water outlet pipe, and the water outlet pipes are bent toward the inside of the installation frame.

[0011] Preferably, the water inlet pipe is connected to an external high-pressure water source, and the water pumping pipe is connected to a water pump.

[0012] Beneficial effects of the utility model:

[0013] The setting of pedestrian passages ensures that workers will not be exposed to water mist when passing through the water curtain structure, and thus will not get wet;

[0014] By setting up a sewage treatment mechanism, the sewage flowing down from the dust collection net can be collected and filtered, so that it can be reused and water resources can be saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The overall structure of a dust suppression device for mine transportation tunnels is shown in the utility model. Figure 1 .

[0016] Figure 2 The overall structure of a dust suppression device for mine transportation tunnels is shown in the utility model. Figure 2 .

[0017] Figure 3 This is a disassembled diagram of the water curtain structure of a dust reduction device for mine transport tunnels according to the utility model.

[0018] Figure 4 The utility model is a schematic diagram of a sewage treatment mechanism of a dust reduction device for a mine transport tunnel.

[0019] Figure 5 This is an enlarged view of point A of a dust reduction device for a mine transport tunnel according to the utility model.

[0020] (1. Pedestrian passage; 2. Water curtain structure; 3. Water collecting box; 4. Exhaust fan; 5. Dust-blocking door; 6. Fixing frame; 7. Water inlet pipe; 8. Diversion slope; 9. Box cover; 10. Water extraction pipe; 11. Connecting pipe; 12. Dust catcher; 13. Mounting frame; 14. Reinforcement rib; 15. Water outlet pipe; 16. Atomizing nozzle; 17. Mud-blocking ridge; 18. Filter plate; 19. Slot) DETAILED DESCRIPTION

[0021] The preferred embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings.

[0022] Reference Figures 1 to 5 The utility model provides a dust suppression device for a mine transport tunnel, including a water curtain structure 2, the water curtain structure 2 including a mounting frame 13 that matches the cross-sectional shape of the tunnel, a dust catching net 12 fixedly connected to the inner side of the mounting frame 13, and a water inlet pipe 7 fixedly connected to the edge of the mounting frame 13, a reinforcing rib 14 fixedly connected to the inner side of the mounting frame 13, and the reinforcing rib 14 improves the overall structural strength and stability of the mounting frame 13; an outlet pipe 15 is equidistantly fixedly connected to the water inlet pipe 7, and the ... The ends of the water outlet pipes 15 are fixedly connected with atomizing nozzles 16, and the water outlet pipes 15 are bent toward the inner side of the mounting frame 13. The bent design of the water outlet pipes 15 enables the atomizing nozzles 16 to spray spray toward the dust catching net 12, so that the water mist can better contact the dust catching net 12; the water inlet pipe 7 is connected to an external high-pressure water source, the external high-pressure water source is introduced into the water inlet pipe 7, and then sprayed from the atomizing nozzles 16, the water mist collides with the dust catching net 12 and forms a water film on the pore structure on the surface of the dust catching net 12 to capture dust.

[0023] Furthermore, if Figure 1 , Figure 2 As shown, in the utility model, a pedestrian passage 1 is fixedly connected at the center of the water curtain structure 2, the pedestrian passage 1 penetrates the water curtain structure 2 and extends to both sides, dust blocking doors 5 are hinged at both ends of the pedestrian passage 1, and fixed frames 6 are fixedly connected at both sides of the pedestrian passage 1, and exhaust fans 4 are fixedly connected to the fixed frames 6. Specifically, when a worker wants to pass through the water curtain structure 2, he can enter and exit through the pedestrian passage 1, and the pedestrian passage 1 extends to a relatively far distance in front and behind, so that the worker will not be exposed to water mist and will not get wet.

[0024] Furthermore, if Figure 1 , Figure 4 , Figure 5As shown, sewage treatment mechanisms are arranged on both sides of the water curtain structure 2 of the utility model, and the sewage treatment mechanisms include water collecting boxes 3 symmetrically arranged on both sides of the pedestrian passage 1, a guide slope 8 is arranged at the front end of the water collecting box 3 and is fixedly connected to the bottom end of the mounting frame 13, and mud retaining ridges 17 are fixedly connected to the guide slope 8 at equal intervals, and the sewage flowing down from the dust catching net 12 can flow into the water collecting box 3 along the guide slope 8, and when the sewage flows on the guide slope 8, a part of the dust in the sewage can be intercepted by the mud retaining ridges 17; slots 19 are symmetrically fixedly connected to the inner side of the water collecting box 3, and filter plates 18 are movably inserted between the slots 19, and a number of filter plates 18 are equidistantly arranged, and the sewage entering the water collecting box 3 can filter out most of the dust after being filtered by the filter plates 18, so that the filtered sewage can be reused for a second time, and the filter plates 18 adopt the existing technology, and can adopt filter screens, filter cotton, etc.

[0025] Furthermore, if Figure 4 As shown, in the utility model, a box cover 9 is hinged on the top of the water collecting box 3, and a connecting pipe 11 is connected between the two water collecting boxes 3, and the connecting pipe 11 is connected to a water pump 10, and the water pump 10 is connected to a water pump. The water after filtering in the water collecting box 3 can be pumped out by the water pump for secondary use, thereby saving water resources.

[0026] Working principle: The external high-pressure water source is introduced into the water inlet pipe 7, and then sprayed out from the atomizing nozzle 16. The water mist collides with the dust-catching net 12 and forms a water film on the porous structure on the surface of the dust-catching net 12. The airflow is formed through the exhaust fan 4, so that the dust-containing gas flows toward the water curtain structure 2. When the airflow in the tunnel carries dust particles through the dust-catching net 12, it will be intercepted by the water film, and the water film on the dust-catching net 12 will be broken up again to form smaller droplets combined with dust particles, thereby achieving the purpose of dust removal. The sewage flowing down from the dust-catching net 12 flows into the water collection tank 3 along the diversion slope 8. The sewage first intercepts part of the dust through the mud retaining ridge 17, and then passes through the filter plate 18 to filter out most of the dust, so that the filtered sewage can be reused for a second time, saving water resources.

[0027] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A dust suppression device for a mine transport tunnel, comprising a water curtain structure, characterized in that: The water curtain structure includes an installation frame that matches the cross-sectional shape of the tunnel, a dust catching net fixedly connected to the inner side of the installation frame, and a water inlet pipe fixedly connected to the edge of the installation frame. A pedestrian passage is fixedly connected at the center of the water curtain structure. The pedestrian passage passes through the water curtain structure and extends to both sides. Dust-blocking doors are hinged at both ends of the pedestrian passage. Sewage treatment mechanisms are arranged on both sides of the water curtain structure. The sewage treatment mechanisms include water collecting tanks symmetrically arranged on both sides of the pedestrian passage, and the two water collecting tanks are connected by a connecting pipe, and the connecting pipe is connected by a pumping pipe. A diversion slope is arranged at the front end of the water collecting tank and is fixedly connected to the bottom end of the installation frame. A filter plate is arranged on the inside of the water collecting tank.

2. A dust suppression device for mine transport tunnels according to claim 1, characterized in that: A box cover is hinged on the top of the water collecting box, a slot is symmetrically fixed on the inner side of the water collecting box, the filter plate is movably inserted in the inner side of the slot, and a plurality of the filter plates are equidistantly arranged.

3. A dust suppression device for mine transport tunnels according to claim 1, characterized in that: Mud retaining ridges are fixedly connected to the diversion slope at equal intervals.

4. A dust suppression device for mine transport tunnels according to claim 1, characterized in that: Both sides of the pedestrian passage are fixedly connected with fixing frames, and the fixing frames are fixedly connected with exhaust fans.

5. The dust suppression device for mine transport tunnel according to claim 1, characterized in that: A reinforcing rib is fixedly connected to the inner side of the installation frame.

6. A dust suppression device for mine transport tunnels according to claim 1, characterized in that: The water inlet pipe is fixedly connected with water outlet pipes at equal distances, and the end of the water outlet pipe is fixedly connected with an atomizing nozzle, and the water outlet pipes are all bent toward the inner side of the installation frame.

7. The dust suppression device for mine transport tunnel according to claim 1, characterized in that: The water inlet pipe is connected to an external high-pressure water source, and the water pumping pipe is connected to a water pump.

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