Movable dust deposition net for metal mine underground tunneling roadway

Abstract

The utility model discloses a movable dust accumulation net for an underground tunneling roadway of a well metal mine. The movable dust accumulation net comprises an arch-shaped water pipe connected with a roadway water source, water spraying nozzles arranged at equal intervals, supporting columns, dust accumulation net pieces, a lifting door net and fixing rods. The dust accumulation net pieces are spliced into a dust accumulation net body structure to be fixed to the supporting columns, roadway power facility installation unfilled corners are preset in the dust accumulation net body structure, the lifting door net can ascend and descend vertically through the guide rail columns, and it is guaranteed that personnel and equipment pass through the lifting door net. The dust deposition net body can move freely in the roadway direction through the lower moving rollers, and the dust deposition net body is fixed through the fixing rods. The device is reasonable in design, simple in structure and capable of being repeatedly moved and used, effectively reduces dirt and dust on a driving working face, and powerfully guarantees body health of underground staff and normal and safe production of a mine.

Description

Technical Field

[0001] This utility model relates to the field of dust collection and suppression devices for underground tunneling roadways in metal mines, specifically to a mobile dust collection net for underground tunneling roadways in metal mines. Background Technology

[0002] With the rapid development of my country's economy, the consumption of metal mining resources is increasing day by day. In order to meet the growing demand of society for mineral resources, the mining intensity and depth of metal mines are constantly increasing. However, the tunneling face in the mining process is a single-headed face. Due to the limited ventilation conditions, a large amount of dust is generated in the tunneling, blasting, and slag removal processes. The dust particles are small in size and have a large surface area. They are suspended in the airflow and do not settle easily, which has a continuous impact on the working environment and seriously threatens the safe production of enterprises and the health of front-line workers.

[0003] Most existing dust-collecting nets used for dust suppression in tunnel working faces are designed for coal mines, specifically for coal dust generated by conveyor belt transport of coal slag. Coal dust concentrations are high and pose significant hazards. Dust-collecting nets used in underground coal mines are often complex in structure, lack flexibility, and have conveyor belt cross-sections. However, metal mine tunneling roads do not have conveyor belts, and dust concentrations are low. Therefore, dust-collecting nets used in coal mines are not suitable for dust suppression under blasting tunneling and rail transport conditions in metal mines. In addition, existing underground spray dust suppression devices in metal mines have fixed installation locations, resulting in high installation and operating costs, making them unsuitable for tunneling projects. Utility Model Content

[0004] The purpose of this invention is to provide a mobile dust collection net for underground tunneling in metal mines, so as to reduce the dust concentration at the underground tunneling face and protect the health of underground workers and the safe production of enterprises.

[0005] To achieve its purpose, this utility model adopts the following technical solution:

[0006] A mobile dust collection net for underground tunneling roadways in metal mines includes water pipes, dust collection netting, support columns, and fixing rods.

[0007] The dust collection mesh consists of a top arched mesh, left and right side meshes, and a central lifting door mesh. The top arched mesh has a pre-reserved notch. The water pipe is arc-shaped and welded to the frame of the top arched mesh, and water spray nozzles are evenly distributed in the arc direction. The support columns include vertical support columns on both sides of the vertical direction of the tunnel, and horizontal support columns at the bottom of the horizontal arched structure of the tunnel. The bottom of the vertical support columns is fixed with movable rollers, and the movable rollers are connected to the tunnel floor.

[0008] As a further improvement to the technical solution of this utility model, the mesh frames on both sides of the central lifting door mesh are welded with door mesh connecting columns, and a circular collar is welded on the door mesh connecting column. The circular collar has a fixing hole, and a guide rail column is installed through the circular collar. The guide rail column is provided with a pin hole, and a movable roller is fixed at the bottom of the guide rail column. The movable roller is connected to the tunnel floor plate.

[0009] Furthermore, the vertical support column is anchored to the surrounding rock of the roadway by a fixing rod.

[0010] Furthermore, the fixing rod is an anchor rod made of threaded steel. One end of the anchor rod is anchored to the surrounding rock, and the other end is connected to the vertical support column through a fastener. The anchoring depth of the anchor rod is 1.5m.

[0011] Furthermore, the dust collection mesh is made of φ6.5mm round steel welded longitudinally and transversely, with a mesh size of 50mm×50mm.

[0012] Furthermore, the water pipe is connected to the water supply pipe in the alley, and the diameter of the water pipe is 30mm.

[0013] Furthermore, the vertical support column is a φ60mm steel pipe, and the horizontal support column is a channel steel. The vertical support column is 2.5m high, and the horizontal support column is 5m long.

[0014] Furthermore, the dust collection mesh frame is fixed to the support column by binding.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This utility model provides a mobile dust collection net for underground tunneling roadways in metal mines. The dust collection net is divided into four parts, which can be disassembled and combined on site for easy installation. The lifting gate net allows personnel and equipment to pass through the roadway. The vertical support columns and guide rail columns are equipped with moving rollers at their bottoms, allowing the dust collection net structure to move along the roadway. The full-section dense grid structure greatly improves the dust reduction rate, significantly promotes the standardized management of safe production at the tunneling face, and effectively protects the health of underground workers and the normal safe production of the mine. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 for Figure 1 Schematic diagram of the structure of a central lifting door;

[0019] Attached reference numerals: 1-Water pipe, 2-Sprinkler head, 3-Preset notch, 4-Vertical support column, 5-Horizontal support column, 6-Top arched mesh, 7-Left and right side mesh, 8-Central lifting door mesh, 9-Fixing rod, 10-Guide rail column, 11-Moving roller, 801-Circular collar, 802-Door mesh connecting column, 803-Fixing hole, 101-Pin hole. Detailed Implementation

[0020] The structure and usage of the mobile dust collection net for underground tunneling in metal mines according to this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of this utility model, and those skilled in the art can obtain other drawings based on these drawings.

[0021] like Figure 1-2 As shown, this utility model provides a mobile dust collection net for underground tunneling in metal mines, comprising a water pipe 1, a dust collection net sheet, support columns, and fixing rods 9. The dust collection net sheet consists of a top arched net 6, left and right side nets 7, and a central lifting gate net 8. The top arched net 6 has a reserved corner 3 to isolate the tunnel's ventilation, water, electricity, and ventilation duct facilities, preventing damage to these facilities as the dust collection net moves along the tunnel. The water pipe 1 is arched and welded to the frame of the top arched net 6. The water pipe 1 is a φ30mm arched round pipe, with water spray nozzles 2 evenly distributed along the arched direction. The water pipe 1 is connected to the tunnel's water supply pipe. The main purpose of water spraying is to wet the dust collection net, increasing its viscosity and enhancing its dust collection efficiency. Simultaneously, water spraying can also clean the dust particles deposited on the dust collection net.

[0022] The support columns include vertical support columns 4 located on both sides of the roadway in the vertical direction, and horizontal support columns 5 located at the bottom of the arched structure in the horizontal direction of the roadway. The bottom of each vertical support column 4 is fixed with a movable roller 11, which is connected to the roadway floor. The top arched mesh 6, the left and right side meshes 7, and the central lifting door mesh 8 are connected to the vertical support columns 4 and the horizontal support columns 5 by binding to form the main structure of the dust collection mesh.

[0023] Specifically, the side mesh frames of the central lifting door mesh 8 are welded with door mesh connecting posts 802, and circular collars 801 are welded on the door mesh connecting posts 802. The circular collars 801 have fixing holes 803, and guide rail posts 10 are installed through the circular collars 801. The guide rail posts 10 are provided with pin holes 101, and movable rollers 11 are fixed at the bottom of the guide rail posts 10. The movable rollers 11 are connected to the tunnel floor.

[0024] The vertical support column 4 is anchored to the surrounding rock of the roadway by a fixing rod 9. The fixing rod 9 is an anchor rod made of threaded steel. One end of the anchor rod is anchored to the surrounding rock, and the other end is connected to the vertical support column 4 by a fastener. The anchoring depth of the anchor rod is 1.5m, and the anchoring agent is cement mortar.

[0025] The dust collection mesh is made of φ6.5mm round steel welded longitudinally and transversely, with a mesh size of 50mm×50mm.

[0026] The vertical support column 4 is a φ60mm steel pipe, and the horizontal support column 5 is a channel steel; the vertical support column 4 is 2.5m high, and the horizontal support column 5 is 5m long.

[0027] After the dust collection net is assembled, the fixed rods 9 are installed on both sides of the roadway after the selected position is selected. One end of the fixed rod 9 is anchored to the surrounding rock, and the other end is connected to the vertical support column 4 through fasteners. The circular collar 801 is welded to the door net connecting column 802. The guide rail column 10 is placed in the circular collar 801. The door net 8 is raised and lowered along the direction of the guide rail column 10 to a suitable position. Then, the pin is inserted into the fixing hole 803 and the pin hole 101 to fix the raised door net 8.

[0028] After the dust collection net is installed, once tunneling begins, open valve 1 on water pipe and spray water onto the net surface using nozzle 2. The water spraying can be intermittent. The dust collection net is typically installed at the tunnel intake and 40m behind the working face, primarily to reduce dust in the intake air and for cleaning the working face. During tunnel excavation, the main body of the dust collection net can move freely along the tunnel direction via lower movable rollers 11 and is fixed in place by fixing rods 9.

Claims

1. A mobile dust collection net for underground tunneling in metal mines, characterized in that, Includes water pipe (1), dust collection mesh, support column and fixing rod (9); The dust collection mesh consists of a top arched mesh (6), left and right side meshes (7) and a middle lifting door mesh (8). The top arched mesh (6) has a reserved corner (3). The water pipe (1) is arc-shaped and welded to the frame of the top arched mesh (6), and water spray nozzles (2) are evenly distributed in the arch direction. The support column includes vertical support columns (4) on both sides of the vertical direction of the roadway, and horizontal support columns (5) at the bottom of the arched structure in the horizontal direction of the roadway. The bottom of the vertical support column (4) is fixed with a moving roller (11), and the moving roller (11) is connected to the bottom plate of the roadway.

2. The mobile dust collection net for underground tunneling in a metal mine according to claim 1, characterized in that, The central lifting door net (8) has door net connecting posts (802) welded to the mesh frame on both sides. A circular collar (801) is welded on the door net connecting post (802). The circular collar (801) has a fixing hole (803). A guide rail post (10) is installed through the circular collar (801). The guide rail post (10) has a pin hole (101). A movable roller (11) is fixed at the bottom of the guide rail post (10). The movable roller (11) is connected to the tunnel floor.

3. The mobile dust collection net for underground tunneling in a metal mine according to claim 1, characterized in that, The vertical support column (4) is anchored to the surrounding rock of the tunnel by a fixing rod (9).

4. A mobile dust collection net for underground tunneling in a metal mine according to claim 3, characterized in that, The fixing rod (9) is an anchor rod made of threaded steel. One end of the anchor rod is anchored to the surrounding rock, and the other end is connected to the vertical support column (4) through a fastener. The anchoring depth of the anchor rod is 1.5m.

5. A mobile dust collection net for underground tunneling in metal mines according to any one of claims 1-4, characterized in that, The dust collection mesh is made of φ6.5mm round steel welded longitudinally and transversely, with a mesh size of 50mm×50mm.

6. A mobile dust collection net for underground tunneling in metal mines according to any one of claims 1-4, characterized in that, The water pipe (1) is connected to the water supply pipe in the alley.

7. A mobile dust collection net for underground tunneling in a metal mine according to claim 6, characterized in that, The water pipe (1) has a diameter of 30 mm.

8. A mobile dust collection net for underground tunneling in metal mines according to any one of claims 1-4 and 7, characterized in that, The vertical support column (4) is a φ60mm steel pipe, and the horizontal support column (5) is a channel steel.

9. A mobile dust collection net for underground tunneling in a metal mine according to claim 8, characterized in that, The vertical support column (4) is 2.5m high and the horizontal support column (5) is 5m long.

10. A mobile dust collection net for underground tunneling in a metal mine according to any one of claims 1-4, 7, and 9, characterized in that, The dust collection mesh frame is fixed to the support column by binding.

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