Dust removal device for open pit coal mine exploitation

Abstract

The utility model relates to the technical field of open pit coal mining, in particular to a dust removal device for open pit coal mining, which comprises a bottom frame, the upper end of the bottom frame is fixedly connected with a U-shaped sun shield through a support rod, a cooling-water machine is mounted in the bottom frame, and the outer wall of the cooling-water machine is communicated with a drainage pipe. The outer wall of the drainage pipe communicates with two vertical pipes which are distributed left and right, the other ends of the two vertical pipes penetrate through the sun shield and communicate with flow guide pipes, and a plurality of evenly-distributed atomizing nozzles are installed on the opposite faces of the two flow guide pipes; cold water in the cooling-water machine is drained to the atomization spray head through the drainage pipe and the flow guide pipe to be sprayed out through the water pump, normal-temperature water is cooled into low-temperature ice water through the cooling-water machine, the water mist evaporation speed can be preliminarily reduced, the atomization spray head can be shielded through the sun shield, and the situation that the temperature of the spray head rises due to sun exposure is prevented; and the water mist evaporation speed is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of open-pit coal mine mining, in particular to a dust removal device for open-pit coal mine mining. Background Technique

[0002] A coal mine is an area where humans mine coal resources in coal-rich mining areas. Generally, it is divided into underground coal mines and open-pit coal mines. When the coal seam is far from the surface, generally, underground roadways are dug to mine coal, which is an underground coal mine. When the distance between the coal seam and the surface is very close, generally, the surface soil layer is directly stripped to mine coal, which is an open-pit coal mine. A large amount of dust is generated during coal mine mining, and a dust removal device is required for dust removal.

[0003] During the coal seam mining process of most open-pit coal mines, spray-type dust removal equipment is usually used for dust removal. However, when the existing spray-type dust removal equipment is used for dust removal in high-temperature weather, the sprayed water is easily evaporated, resulting in a significant reduction in the dust removal effect. In addition, the nozzles of the existing spray-type dust removal equipment can usually rotate horizontally, but it is not convenient to rotate vertically, resulting in a spray blind area and reducing the dust removal efficiency. Therefore, it is necessary to propose a dust removal device for open-pit coal mine mining to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a dust removal device for open-pit coal mine mining, which has the characteristics of reducing the evaporation speed of water mist through the cooperation of a chiller and a sunshade board, improving the dust removal effect, and facilitating the vertical rotation of the nozzle, so that the water mist can quickly cover the area to be dusted and improve the dust removal efficiency.

[0005] The purpose of the utility model is to provide a dust removal device for open-pit coal mine mining, including a chassis. The upper end of the chassis is fixedly connected with a "U"-shaped sunshade board through a support rod. A chiller is installed inside the chassis. A drainage pipe is communicated with the outer wall of the chiller. Two vertical pipes distributed left and right are communicated with the outer wall of the drainage pipe. The other ends of the two vertical pipes both penetrate through the sunshade board and are communicated with a diversion pipe. A plurality of uniformly distributed atomizing nozzles are installed on one side of the two diversion pipes facing each other;

[0006] Two support blocks distributed left and right are fixedly connected inside the sunshade board. A rotating shaft is rotatably connected inside each of the two support blocks. Auxiliary blocks are fixedly connected to the outer walls of the two rotating shafts. Pipe clamps are respectively used to detachably connect the two diversion pipes to the opposite sides of the two auxiliary blocks.

[0007] To drive the rotation of two rotating shafts, as an optimization of the dust removal device for open-pit coal mines of the present utility model, an installation plate is fixedly connected to the front end of the sunshade. An electric push rod is installed on the upper end surface of the installation plate. The output end of the electric push rod penetrates through the installation plate and is fixedly connected to a driving rod. Two symmetrically distributed racks are fixedly connected to the lower end surface of the driving rod. Gears respectively meshing with the two racks are fixedly connected to the front ends of the two rotating shafts.

[0008] To facilitate the telescopic movement of the vertical pipes, as an optimization of the dust removal device for open-pit coal mines of the present utility model, one end of each of the two vertical pipes located inside the sunshade is an elastic corrugated pipe.

[0009] To facilitate the pumping of cold water, as an optimization of the dust removal device for open-pit coal mines of the present utility model, a water pump is installed on the outer wall of the diversion pipe.

[0010] To increase the stability of the movement of the racks, as an optimization of the dust removal device for open-pit coal mines of the present utility model, the rear ends of the two racks are both in contact with the sunshade.

[0011] To facilitate the introduction of normal temperature water into the chiller, as an optimization of the dust removal device for open-pit coal mines of the present utility model, a water inlet pipe is connected to the rear end of the chiller.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] In the present utility model, the cold water inside the chiller is drained through the diversion pipe and the guide pipe to the atomizing nozzle and sprayed out by the water pump. The normal temperature water is cooled to low-temperature ice water by the chiller, which can initially reduce the evaporation speed of the water mist. The atomizing nozzle can be shielded by the sunshade to prevent the temperature of the nozzle from rising due to sun exposure, further reducing the evaporation speed of the water mist.

[0014] The electric push rod drives the driving rod to move, thereby driving the two connected racks to move. When the two racks move, they drive the two meshing gears to rotate, and then drive the two rotating shafts to rotate, which can respectively drive the two connected guide pipes to rotate up and down reciprocally, so that the atomizing nozzle rotates reciprocally.

[0015] In summary, it can achieve the purpose of reducing the evaporation speed of the water mist through the cooperation of the chiller and the sunshade, improving the dust removal effect, facilitating the vertical rotation of the nozzle, enabling the water mist to quickly cover the area to be dusted, and improving the dust removal efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the overall structure diagram of the present utility model;

[0017] Figure 2Rear view structure diagram of the present utility model;

[0018] Figure 3 Partial structure diagram of the present utility model.

[0019] In the figure: 1, chassis; 2, chiller; 3, water inlet pipe; 4, water pump; 5, drainage pipe; 6, vertical pipe; 7, diversion pipe; 8, atomizing nozzle; 9, electric push rod; 10, mounting plate; 11, driving rod; 12, rack; 13, gear; 14, sunshade; 15, rotating shaft; 16, support block; 17, auxiliary block; 18, support rod. Specific embodiments

[0020] Please refer to Figures 1 to 3 , a dust removal device for open-pit coal mines, including a chassis 1, the upper end of the chassis 1 is fixedly connected with a "U"-shaped sunshade 14 through a support rod 18. Inside the chassis 1, there is a chiller 2 installed. The outer wall of the chiller 2 is communicated with a drainage pipe 5. The outer wall of the drainage pipe 5 is communicated with two vertical pipes 6 distributed left and right. The other ends of the two vertical pipes 6 both penetrate the sunshade 14 and are communicated with a diversion pipe 7. A plurality of evenly distributed atomizing nozzles 8 are installed on the opposite sides of the two diversion pipes 7;

[0021] Inside the sunshade 14, there are two support blocks 16 fixedly connected left and right. Inside the two support blocks 16, there are rotating shafts 15 rotatably connected. On the outer walls of the two rotating shafts 15, there are auxiliary blocks 17 fixedly connected. On the opposite sides of the two auxiliary blocks 17, they are respectively detachably connected to the two diversion pipes 7 through pipe clamps.

[0022] In this embodiment: When in use, place the sunshade 14 on both sides of the excavator's bucket wheel. The cold water inside the chiller 2 is drained through the drainage pipe 5 and the diversion pipe 7 to the atomizing nozzle 8 by the water pump 4 and sprayed out. The normal temperature water is cooled to low temperature ice water by the chiller 2, which can initially reduce the evaporation speed of the water mist. The sunshade 14 can shield the atomizing nozzle 8 to prevent the temperature of the nozzle from rising due to sun exposure, further reducing the evaporation speed of the water mist;

[0023] By rotating the two rotating shafts 15, the two diversion pipes 7 connected thereto can be respectively driven to rotate up and down reciprocally, so that the atomizing nozzle 8 can rotate reciprocally, enabling the water mist to quickly cover the area that needs dust removal, improving the dust removal efficiency.

[0024] As a technical optimization scheme of the present utility model, the front end of the sunshade 14 is fixedly connected with a mounting plate 10. An electric push rod 9 is installed on the upper end surface of the mounting plate 10. The output end of the electric push rod 9 penetrates the mounting plate 10 and is fixedly connected with a driving rod 11. The lower end surface of the driving rod 11 is fixedly connected with two symmetrically distributed racks 12. The front ends of the two rotating shafts 15 are fixedly connected with gears 13 respectively meshing with the two racks 12.

[0025] In this embodiment: The electric push rod 9 drives the driving rod 11 to move, so as to drive the two racks 12 connected thereto to move. When the two racks 12 move, they will drive the two gears 13 meshed therewith to rotate, and further drive the two rotating shafts 15 to rotate.

[0026] As a technical optimization scheme of the present utility model, one ends of the two vertical pipes 6 located inside the sunshade 14 are elastic corrugated pipes.

[0027] In this embodiment: One ends of the two vertical pipes 6 located inside the sunshade 14 are elastic corrugated pipes, which can assist the flow guide pipe 7 to perform telescopic movement.

[0028] As a technical optimization scheme of the present utility model, a water pump 4 is installed on the outer wall of the drainage pipe 5.

[0029] In this embodiment: Through the water pump 4, the cold water inside the chiller 2 can be transported into the drainage pipe 5.

[0030] As a technical optimization scheme of the present utility model, the rear ends of the two racks 12 are both abutted against the sunshade 14.

[0031] In this embodiment: By the rear ends of the two racks 12 being both abutted against the sunshade 14, the stability of the movement of the two racks 12 can be increased

[0032] As a technical optimization scheme of the present utility model, a water inlet pipe 3 is connected to the rear end of the chiller 2.

[0033] In this embodiment: By connecting the water inlet pipe 3 with the water source pipe, the water source can be transported into the chiller 2.

[0034] Working principle: When in use, first place the sunshade 14 on both sides of the excavator's picking wheel bucket. The cold water inside the chiller 2 is drained through the drainage pipe 5 and the flow guide pipe 7 to the atomizing nozzle 8 by the water pump 4 and sprayed out. The normal temperature water is cooled to low temperature ice water by the chiller 2, which can initially reduce the evaporation speed of the water mist. The atomizing nozzle 8 can be shielded by the sunshade 14 to prevent the temperature of the nozzle from rising due to sun exposure, and further reduce the evaporation speed of the water mist;

[0035] Then the electric push rod 9 drives the driving rod 11 to move, so as to drive the two racks 12 connected thereto to move. When the two racks 12 move, they will drive the two gears 13 meshed therewith to rotate, and further drive the two rotating shafts 15 to rotate, which can respectively drive the two flow guide pipes 7 connected thereto to rotate up and down reciprocally. When the two flow guide pipes 7 rotate up and down reciprocally, the parts of the vertical pipes 6 that are elastic corrugated pipes follow the flow guide pipes 7 to perform telescopic movement, so that the atomizing nozzle 8 can rotate reciprocally, enabling the water mist to quickly cover the area to be dust-removed, improving the dust removal efficiency.

[0036] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A dust removal device for open-pit coal mining, comprising a base frame (1), characterized in that: The upper end of the base frame (1) is fixedly connected to a "U"-shaped sunshade (14) via a support rod (18); a water chiller (2) is installed inside the base frame (1); the outer wall of the water chiller (2) is connected to a drainage pipe (5); the outer wall of the drainage pipe (5) is connected to two vertical pipes (6) distributed on the left and right; the other ends of the two vertical pipes (6) penetrate the sunshade (14) and are connected to a guide pipe (7); and a plurality of evenly distributed atomizing nozzles (8) are installed on opposite sides of the two guide pipes (7); The sun visor (14) is internally fixedly connected to two support blocks (16) distributed on the left and right, the interiors of the two support blocks (16) are rotatably connected to a rotating shaft (15), the outer walls of the two rotating shafts (15) are fixedly connected to auxiliary blocks (17), and the opposite sides of the two auxiliary blocks (17) are detachably connected to the two guide pipes (7) via pipe clamps.

2. A dust removal device for open-pit coal mining according to claim 1, characterized in that: The front end of the sun visor (14) is fixedly connected to a mounting plate (10), the upper end surface of the mounting plate (10) is mounted with an electric push rod (9), the output end of the electric push rod (9) passes through the mounting plate (10) and is fixedly connected to a driving rod (11), the lower end surface of the driving rod (11) is fixedly connected to two symmetrically distributed racks (12), and the front ends of the two rotating shafts (15) are fixedly connected to gears (13) respectively meshing with the two racks (12).

3. The dust removal device for open-pit coal mining according to claim 1, characterized in that: One end of the two vertical pipes (6) located inside the sunshade (14) is an elastic bellows.

4. The dust removal device for open-pit coal mining according to claim 1, characterized in that: A water pump (4) is installed on the outer wall of the drainage pipe (5).

5. The dust removal device for open-pit coal mining according to claim 2, characterized in that: The rear ends of the two racks (12) are in contact with the sunshade (14).

6. The dust removal device for open-pit coal mining according to claim 1, characterized in that: The rear end of the water chiller (2) is connected to a water inlet pipe (3).

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