Open pit coal mine road surface watering and dust falling device

Abstract

The utility model discloses an open pit coal mine road surface watering and dust falling device which comprises a horizontally-arranged water supply pipe, a water inlet pipe is connected to the water supply pipe, a plurality of water outlet pipes are vertically and downwards connected to the water supply pipe in the length direction, and nozzles are installed on the water outlet pipes. A conical sealing cone is arranged under the spray head, the sealing cone is connected with an elastic telescopic assembly, the elastic telescopic assembly is installed on the water outlet pipe, the elastic telescopic assembly applies vertically upward elastic force to the sealing cone, and the sealing cone is used for blocking a spray hole of the spray head; the sprinkler has the advantages that the sprinkler is simple in structure, the elastic sealing cone assembly is arranged at the sprayer of the sprinkler, when the sprayer stops working, the sealing cone assembly blocks a spraying hole of the sprayer, dust is prevented from being sucked into the spraying hole of the sprayer, the sprayer can be effectively prevented from being blocked, the service life of the sprayer is prolonged, and the sprinkler is convenient to use. And normal operation of water sprinkling and dust falling operation is ensured.

Description

Technical fields:

[0001] This utility model relates to the field of tumbling equipment technology, and in particular to a dust suppression device for water spraying on the road surface of an open-pit coal mine. Background technology:

[0002] Open-pit coal mines generate significant dust, necessitating regular water spraying on coal transport routes to suppress it. Current technology utilizes water trucks for dust suppression. During operation, the trucks are equipped with water tanks, and T-shaped water pipes connected to these tanks are positioned beneath the trucks. Several nozzles are installed along the length of the T-shaped water pipes to spray water and reduce dust. However, this type of water-spraying dust suppression device is prone to nozzle clogging, has a short lifespan, requires frequent replacements, and incurs high operating costs, hindering the normal operation of the dust suppression system. The main reason for nozzle clogging is that a negative pressure is generated at the nozzle the moment water spraying stops, drawing dust into the nozzle orifices. By the next water spraying operation, the dust has already hardened or solidified, leading to nozzle clogging. Utility model content:

[0003] The purpose of this utility model is to provide a dust suppression device for water spraying on open-pit coal mine roads, so as to solve the technical problems of easy clogging and short service life of the nozzles of existing dust suppression devices.

[0004] The present invention relates to a dust suppression device for water spraying on the road surface of an open-pit coal mine, comprising a horizontally arranged water supply pipe, an inlet pipe connected to the water supply pipe, and a plurality of outlet pipes connected vertically downward along the length of the water supply pipe. A nozzle is installed on the outlet pipe, and a conical sealing cone is positioned directly below the nozzle. The sealing cone is connected to an elastic telescopic assembly, which is installed on the outlet pipe. The elastic telescopic assembly applies an upward elastic force to the sealing cone, which is used to seal the nozzle orifices.

[0005] Furthermore, the elastic telescopic assembly includes a limiting ring installed on the water outlet pipe. Several through holes are evenly distributed along the circumference of the limiting ring. A lifting rod is slidably connected in the through holes. The bottom end of the lifting rod is connected to the sealing cone. A limiting block is connected to the top end of the lifting rod. A compression spring is fitted on the lifting rod. The compression spring is located between the limiting block and the limiting ring.

[0006] Furthermore, the limiting ring is fitted onto the water outlet pipe, and an annular groove is formed on the outer wall of the water inlet pipe. A retaining ring is installed in the annular groove, and the limiting ring is located above the retaining ring.

[0007] Furthermore, the sealing cone is made of stainless steel, and the surface roughness of the sealing cone surface is Ra.

[0008] Furthermore, a tee is vertically connected to the water inlet pipe, and a ball valve is installed on a branch pipe of the tee.

[0009] Furthermore, a filter screen is installed inside the tee, and the filter screen is located below the branch pipe of the tee.

[0010] The beneficial effects of this utility model are as follows: This utility model has a simple structure and an elastic sealing cone assembly is designed at the nozzle of the sprinkler device. When the nozzle stops working, the sealing cone assembly seals the nozzle orifice to prevent dust from being sucked into the nozzle orifice. This can effectively prevent the nozzle from clogging, improve the service life of the nozzle, save costs, and ensure the normal operation of sprinkler dust suppression. Attached image description:

[0011] Figure 1 This is a perspective view of the present utility model;

[0012] Figure 2 This is the front view of the present invention;

[0013] Figure 3 This is a partial cross-sectional view of the present invention;

[0014] In the diagram, the components are: water supply pipe 1, water inlet pipe 2, water outlet pipe 3, nozzle 4, sealing cone 5, lifting rod 6, compression spring 7, limit block 8, limit ring 9, snap ring 10, filter screen 11, and tee 12. Detailed implementation method:

[0015] like Figure 1 and Figure 2 As shown, an open-pit coal mine road surface water spraying dust suppression device includes a horizontally arranged water supply pipe 1, an inlet pipe 2 connected to the water supply pipe 1, and several outlet pipes 3 connected vertically downward along the length of the water supply pipe 1. A nozzle 4 is installed on the outlet pipe 3, and a conical sealing cone 5 is arranged directly below the nozzle 4. The sealing cone 5 is connected to an elastic telescopic assembly, which is installed on the outlet pipe 3. The elastic telescopic assembly applies a vertically upward elastic force to the sealing cone 5, and the sealing cone 5 is used to seal the spray holes of the nozzle 4.

[0016] like Figure 3 As shown, the elastic telescopic assembly includes a limiting ring 9 installed on the water outlet pipe 3. Several through holes are evenly distributed along the circumferential direction on the limiting ring 9. A lifting rod 6 is slidably connected in the through holes. The bottom end of the lifting rod 6 is connected to the sealing cone 5. The top end of the lifting rod 6 is connected to a limiting block 8. A compression spring 7 is fitted on the lifting rod 6. The compression spring 7 is located between the limiting block 8 and the limiting ring 9.

[0017] To facilitate the disassembly and installation of elastic telescopic components, such as Figure 3 As shown, the limiting ring 9 is fitted onto the water outlet pipe 3, and an annular groove is formed on the outer wall of the water inlet pipe 2. A retaining ring 10 is installed in the annular groove, and the limiting ring 9 is located above the retaining ring 10. The sealing cone 5 is made of stainless steel, and the surface roughness of the cone surface of the sealing cone 5 is Ra0.4.

[0018] like Figure 2 As shown, in order to filter the water source and clean the dirt regularly, a tee 12 is vertically connected to the water inlet pipe 2, and a ball valve is installed on the branch pipe of the tee 12; a filter screen 11 is installed inside the tee 12, and the filter screen 11 is located below the branch pipe of the tee 12.

[0019] In specific work, such as Figures 1 to 3 As shown, when in use, this utility model is installed under the sprinkler truck, and the water inlet pipe 2 is connected to the water storage tank on the sprinkler truck. At the same time, common parts such as water pump and ball valve are matched on the water inlet pipe 2. During the water spraying operation, the water pressure pushes open the sealing cone 5 to carry out normal water spraying operation. After the water spraying operation is completed, due to the action of the compression spring 7, the sealing cone 5 seals the spray hole of the nozzle 4 to prevent dust from being sucked into the nozzle 4 and to prevent the nozzle 4 from becoming blocked.

[0020] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An open-pit coal mine road surface water spraying dust-settling device, comprising a water supply pipe (1) arranged horizontally, a water inlet pipe (2) connected to the water supply pipe (1), a plurality of water outlet pipes (3) connected to the water supply pipe (1) vertically downward along the length direction, and a spray head (4) mounted on the water outlet pipe (3), characterized in that: A conical sealing cone (5) is arranged directly below the spray head (4), the sealing cone (5) is connected with an elastic telescopic assembly, the elastic telescopic assembly is installed on the water outlet pipe (3), the elastic telescopic assembly exerts an elastic force vertically upward on the sealing cone (5), and the sealing cone (5) is used for plugging the spray hole of the spray head (4).

2. The road surface water spraying and dust settling device for strip coal mine according to claim 1, characterized in that: The elastic telescopic assembly comprises a limiting ring (9) installed on the water outlet pipe (3), a plurality of through holes are uniformly arranged on the limiting ring (9) in the circumferential direction, a lifting rod (6) is slidably connected in the through holes, the bottom end of the lifting rod (6) is connected with the sealing cone (5), the top end of the lifting rod (6) is connected with a limiting block (8), a compression spring (7) is sleeved on the lifting rod (6), and the compression spring (7) is located between the limiting block (8) and the limiting ring (9).

3. The road surface water spraying and dust settling device for strip coal mine according to claim 2, characterized in that: The limiting ring (9) is sleeved on the water outlet pipe (3), a ring groove is formed in the outer wall of the water inlet pipe (2), a clamping spring (10) is installed in the ring groove, and the limiting ring (9) is located above the clamping spring (10).

4. The road surface water spraying and dust settling device for strip coal mine according to claim 1, characterized in that: The sealing cone (5) is made of stainless steel, and the surface roughness of the conical surface of the sealing cone (5) is Ra0.

4.

5. A device for spraying water on a surface of an open cut coal mine to reduce dust according to any one of claims 1 to 4, characterised in that: A three-way pipe (12) is vertically connected to the water inlet pipe (2), and a ball valve is installed on the branch pipeline of the three-way pipe (12).

6. A device for spraying water on a surface of an open cut coal mine to reduce dust according to claim 5, characterised in that: A filter screen (11) is installed in the three-way pipe (12), and the filter screen (11) is located below the branch pipeline of the three-way pipe (12).

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