A device for reducing dust emission in open pit mining operations

Abstract

The utility model relates to the open -pit mining technical field, and specifically is a kind of open -pit mining operation's reduce dust device, including fixed seat, fixed seat is installed with support mechanism, support mechanism is fixed with water inlet mechanism, water inlet mechanism is communicated with dust suppression mechanism, dust suppression mechanism includes shunt pipe and connecting pipe, fixed seat is fixedly installed with shunt pipe, and the end portion of shunt pipe is communicated with connecting pipe, two groups of pipes are fixedly installed on shunt pipe symmetry, and one end of pipe, away from shunt pipe, is fixed with drain pipe, and a plurality of sector nozzles are fixedly installed on drain pipe equidistantly;Arc shunt pipe, drain pipe cooperate with the sector nozzle of inclined, horizontal setting, form low altitude, ground, high altitude's three-dimensional spray cover, compared with traditional linear type spray pipe, coverage area has somewhat promoted, can effectively inhibit mining area mine car transportation, ore loading and unloading, ore storage and other multi-scene dust.

Description

Technical Field

[0001] This utility model relates to a dust reduction device, specifically a dust reduction device for open-pit mining operations, and belongs to the field of open-pit mining technology. Background Technology

[0002] In open-pit mining operations, the processes of ore extraction, loading, transportation, and stockpiling generate large amounts of dust, which is one of the main sources of environmental pollution in mining areas. Large open-pit mines can emit hundreds of tons of dust daily, which not only reduces visibility and accelerates equipment wear, but also harms the respiratory health of workers, increasing the risk of pneumoconiosis with prolonged exposure. Furthermore, dust spreading to surrounding areas pollutes soil and water bodies, damaging the ecological environment. Some mining areas have installed straight steel pipes along both sides of roads, using fixed, straight sprinkler pipes with nozzles installed at intervals to suppress dust through water mist sprayed from the nozzles.

[0003] However, the nozzles of straight spray pipes are usually arranged horizontally or vertically, and the spray range covers the area in a linear band. For the arc-shaped roads and circular ore piles commonly found in open-pit mining areas, they cannot fit the contours of these areas and are prone to forming spray blind spots on the outer side of the arc. In addition, the height of dust sources in open-pit mining areas varies greatly, and most straight spray pipes are at a fixed height, which makes it inconvenient to adjust the nozzle height in a timely manner according to the height of the dust source, resulting in low utilization efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a dust reduction device for open-pit mining operations in order to solve the above-mentioned problems. The arc-shaped diversion pipe and drainage pipe, together with the inclined and horizontally set fan-shaped nozzles, form a three-dimensional spray coverage at low altitude, ground and high altitude. Compared with the traditional straight spray pipe, the coverage area is improved, which can effectively suppress dust in various scenarios such as mine car transportation, ore loading and unloading, and ore storage in the mining area.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a dust reduction device for open-pit mining operations, comprising a fixed base, a support mechanism installed on the fixed base, a water inlet mechanism fixed on the support mechanism, the water inlet mechanism being connected to a dust suppression mechanism, the dust suppression mechanism comprising a diversion pipe and a connecting pipe, the diversion pipe being fixedly installed on the fixed base, the end of the diversion pipe being connected to the connecting pipe, two sets of guide pipes being symmetrically fixedly installed on the diversion pipe, a drain pipe being fixedly installed at one end of the guide pipe opposite to the diversion pipe, and a plurality of fan-shaped nozzles being fixedly installed at equal intervals on the drain pipe.

[0006] Preferably, the drain pipe and the branch pipe are both arranged in an arc shape, and the connecting pipe is arranged in an L shape.

[0007] Preferably, the fan-shaped nozzles located at both ends of the drain pipe and the diversion pipe are inclined, and the drain pipe is connected to the interior of the diversion pipe through a conduit, wherein the diameter of the diversion pipe is larger than the diameter of the drain pipe.

[0008] Preferably, the support mechanism includes a column and a sliding column. The sliding column is fixedly installed on the fixed base by bolts, and the column is installed at the bottom end of the sliding column. The sliding column and the column are slidably connected.

[0009] Preferably, the support mechanism further includes a hydraulic rod, with the hydraulic rod fixedly installed at the top of the column, and the telescopic end of the hydraulic rod fixedly connected to a sliding column.

[0010] Preferably, the water inlet mechanism includes a water inlet pipe and a retainer. Several retainers are fixedly connected at equal intervals on the sliding column, and the water inlet pipe is engaged and installed in the retainer.

[0011] Preferably, the water inlet pipe is fixedly connected to the connecting pipe by bolts, and the water inlet pipe is internally connected to the diversion pipe through the connecting pipe.

[0012] Preferably, the water inlet mechanism further includes a rubber pad, the inner wall of the card holder is bonded with a rubber pad, the water inlet pipe abuts against the rubber pad, and the rubber pad is arranged in an arc-shaped structure.

[0013] The beneficial effects of this utility model are as follows: the diversion pipe, as the main hub for water flow distribution, receives high-pressure water flow from the connecting pipe. Through two sets of symmetrically arranged conduits, the water flow is evenly distributed to the drainage pipes on both sides, avoiding uneven spraying caused by insufficient water pressure on one side. The arc-shaped design can conform to the arc contour of the road and the edge of the ore pile in the open-pit mining area, reducing spray dead angles. The drainage pipe is also an arc-shaped structure, which is adapted to the arc of the diversion pipe. Fan-shaped nozzles are installed at equal intervals on the pipe body to receive the water flow transported by the conduit. The water flow is converted into water mist through the equally spaced nozzles. The arc-shaped structure combined with the fan-shaped nozzles can upgrade the water mist coverage from the linear coverage of the traditional straight pipe to the arc-shaped surface coverage, thus increasing the coverage area. The fan-shaped nozzles have a large atomization angle. The tilted nozzles can cover the dust areas above and outside the device, such as the top of the mine car and the high part of the ore pile. The horizontal nozzles cover the ground and low-altitude dust, forming a three-dimensional dust suppression net. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 for Figure 1 The diagram shown is an enlarged view of the structure of part A. Figure 3 This is a schematic diagram of the connection structure between the fixed base and the diversion pipe of this utility model; Figure 4 This is a schematic diagram of the connection structure between the water inlet pipe and the card holder of this utility model; Figure 5 This is a schematic diagram of the connection structure between the fan-shaped nozzle and the drain pipe of this utility model; Figure 6 This is a schematic diagram of the connection structure between the sliding column and the hydraulic rod of this utility model.

[0015] In the diagram: 1. Fixed base; 2. Support mechanism; 201. Column; 202. Sliding column; 203. Hydraulic rod; 3. Dust suppression mechanism; 301. Fan-shaped nozzle; 302. Drain pipe; 303. Conduit; 304. Diversion pipe; 305. Connecting pipe; 4. Water inlet mechanism; 401. Water inlet pipe; 402. Card seat; 403. Rubber pad. Detailed Implementation

[0016] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-6As shown, a dust reduction device for open-pit mining operations includes a fixed base 1, a support mechanism 2 mounted on the fixed base 1, and a water inlet mechanism 4 fixed on the support mechanism 2. The water inlet mechanism 4 is connected to a dust suppression mechanism 3. The dust suppression mechanism 3 includes a diversion pipe 304 and a connecting pipe 305. The diversion pipe 304 is fixedly mounted on the fixed base 1, and the end of the diversion pipe 304 is connected to the connecting pipe 305. Two sets of conduits 303 are symmetrically fixedly mounted on the diversion pipe 304. When the water source valve is opened and the water supply pressure is slowly adjusted, water can be transported from the water inlet pipe 401 to the connecting pipe 305. High-pressure water enters the arc-shaped diversion pipe 304 through the connecting pipe 305. The diameter of the diversion pipe 304 is larger than the diameter of the drain pipe 302, serving as the main hub for water flow distribution, evenly distributing the water to the two symmetrically arranged conduits 303. A drain pipe 302 is fixed to the end of the conduit 303 opposite to the diversion pipe 304. Both 302 and the diversion pipe 304 are arranged in an arc shape. The diameter of the diversion pipe 304 is larger than the diameter of the drainage pipe 302. Several fan-shaped nozzles 301 are fixedly installed at equal intervals on the drainage pipe 302. The connecting pipe 305 is arranged in an L-shape. The fan-shaped nozzles 301 located at both ends of the drainage pipe 302 and the diversion pipe 304 are all inclined. The drainage pipe 302 is connected to the inside of the diversion pipe 304 through the conduit 303. The high-pressure water is evenly distributed along the arc surface inside the pipe and finally delivered to the inlet of each fan-shaped nozzle 301. The outlet end of the fan-shaped nozzle 301 is designed as a flat fan-shaped cut. When the high-pressure water flows out through the flat cut, it will quickly diffuse to form a continuous fan-shaped water mist due to the constraint of the cut shape and the effect of air resistance. This upgrades the water mist coverage from the linear coverage of the traditional straight pipe to the arc-shaped surface coverage, thus increasing the coverage area and further reducing the dead zones for dust suppression in the mining area.

[0018] As a technical optimization of this utility model, the support mechanism 2 includes a column 201 and a sliding column 202. The sliding column 202 is fixedly installed on the fixed base 1 by bolts. The column 201 is installed at the bottom end of the sliding column 202, and the sliding column 202 and the column 201 are slidably connected. A hydraulic rod 203 is fixedly installed at the top end of the column 201. A hydraulic control system connected to the hydraulic rod 203 is activated. When the hydraulic system is started, the telescopic end of the hydraulic rod 203 drives the sliding column 202 to rise and fall on the side wall of the column 201. The sliding column 202 drives the fixed base 1 to move up and down, which can cause the diversion pipe 304 installed in the fixed base 1 to move the fan-shaped nozzle 301 and the drain pipe 302 connected on both sides to move, thereby facilitating the adjustment of the spraying height of the fan-shaped nozzle 301 according to the usage scenario of the equipment. The telescopic end of the hydraulic rod 203 is fixedly connected to the sliding column 202.

[0019] As a technical optimization of this utility model, the water inlet mechanism 4 includes a water inlet pipe 401 and a retainer 402. Several retainers 402 are fixedly connected at equal intervals on the sliding column 202. The water inlet pipe 401 is fitted and installed in the retainer 402. The water inlet pipe 401 is fixedly connected to the connecting pipe 305 by bolts, and the water inlet pipe 401 is internally connected to the diversion pipe 304 through the connecting pipe 305. A rubber pad 403 is adhered to the inner wall of the retainer 402. The water inlet pipe 401 is taken out and inserted into the retainer 402 section by section to ensure that the water inlet pipe 401 and the rubber pad 403 adhered to the inner wall of the retainer 402 are in complete contact. The rubber pad 403 has an arc surface structure, which can tightly fit the outer wall of the water inlet pipe 401 to prevent the water inlet pipe 401 from shaking. The water inlet pipe 401 and the rubber pad 403 are in contact, and the rubber pad 403 is set with an arc surface structure.

[0020] In use, this utility model is first implemented by selecting a location in the open-pit mining area with high dust levels, such as beside transport roads, ore loading and unloading points, or the edge of ore piles, and clearing debris from the installation site to ensure a level surface. The sliding column 202 is then fixed to the pre-set installation holes on the top of the fixing base 1 using expansion bolts. A level is used to calibrate the verticality of the sliding column 202, ensuring it is perpendicular to the ground. After installing the fixing base 1, the bottom end of the sliding column 202 is fitted onto the top end of the column 201. The sliding fit between the sliding column 202 and the column 201 is checked for smoothness. Then, both ends of the hydraulic rod 203 are fixedly connected to the top end of the column 201 and the inner wall of the sliding column 202, respectively, and the hydraulic rod 203 connector is tightened with bolts. Next, several [unclear text - possibly related to installation points] are installed along the pre-set installation points on the side wall of the sliding column 202. The mounting brackets 402 are fixed at equal intervals with bolts, ensuring that the openings of several mounting brackets 402 face the same direction. The inlet pipe 401 is removed and inserted segment by segment into the mounting brackets 402, ensuring that the inlet pipe 401 is in complete contact with the rubber pad 403 adhered to the inner wall of the mounting bracket 402. The rubber pad 403 has an arc-shaped structure, which can tightly fit the outer wall of the inlet pipe 401 to prevent the inlet pipe 401 from shaking. The end of the inlet pipe 401 is checked, and one end of the inlet pipe 401 is fixed to the connecting pipe 305 with an L-shaped structure using bolts. In use, the hydraulic control system of the hydraulic rod 203 is connected, and the hydraulic system is started. The telescopic end of the hydraulic rod 203 drives the sliding column 202 to rise and fall on the side wall of the column 201. The sliding column 202 drives the fixed seat 1 to move up and down, allowing the installation... The diversion pipe 304 within the fixed base 1 drives the displacement of the fan-shaped nozzles 301 and drain pipe 302 connected on both sides, thereby facilitating the adjustment of the spray height of the fan-shaped nozzles 301 according to the application scenario required by the equipment. Connecting the water source interface to the inlet pipe 401, opening the water source valve, and slowly adjusting the water supply pressure allows water to be delivered from the inlet pipe 401 to the connecting pipe 305. High-pressure water then enters the arc-shaped diversion pipe 304 through the connecting pipe 305. The diameter of the diversion pipe 304 is larger than that of the drain pipe 302, serving as the main hub for water distribution, evenly distributing water to the two symmetrically arranged sets of conduits 303. The arc-shaped structure of the diversion pipe 304 conforms to the arc-shaped contours of the mining area roads and ore piles, while preventing the formation of eddies within the pipe, ensuring the smooth flow of water to the two conduits 303. The inlet pressure of 3 is consistent; the two sets of conduits 303 respectively receive the water flow from the diversion pipe 304, and guide the arc-shaped drain pipes 302 on both sides vertically or inclined. The water flow enters the arc-shaped drain pipe 302 that matches the curvature of the diversion pipe 304. The inner wall of the drain pipe 302 is smooth and has equidistant pre-reserved nozzle installation holes. The high-pressure water is evenly distributed along the arc surface in the pipe and finally delivered to the inlet of each fan-shaped nozzle 301. The outlet end of the fan-shaped nozzle 301 is designed as a flat fan-shaped cut. When the high-pressure water flows out through the flat cut, it will quickly diffuse to form a continuous fan-shaped water mist due to the constraint of the cut shape and the effect of air resistance. This upgrades the water mist coverage from the linear coverage of the traditional straight pipe to the arc-shaped surface coverage, which increases the coverage area and further reduces the dead angles for dust suppression in the mining area.

[0021] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0022] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for reducing dust emission in open pit mining operations, comprising a stationary base (1), characterized in that: A support mechanism (2) is installed on the fixed base (1), and a water inlet mechanism (4) is fixed on the support mechanism (2). The water inlet mechanism (4) is connected to the dust suppression mechanism (3). The dust suppression mechanism (3) includes a diversion pipe (304) and a connecting pipe (305). A diversion pipe (304) is fixedly installed on the fixed base (1). The end of the diversion pipe (304) is connected to the connecting pipe (305). Two sets of conduits (303) are symmetrically fixedly installed on the diversion pipe (304). A drain pipe (302) is fixed at one end of the conduit (303) away from the diversion pipe (304). Several fan-shaped nozzles (301) are fixedly installed at equal intervals on the drain pipe (302).

2. A device for reducing dust emission in open pit mining operations according to claim 1, characterized in that: The drain pipe (302) and the diversion pipe (304) are both arranged in an arc shape, and the connecting pipe (305) is arranged in an L shape.

3. The dust reduction device for open-pit mining operations according to claim 1, characterized in that: The fan-shaped nozzles (301) located at both ends of the drain pipe (302) and the diversion pipe (304) are all inclined. The drain pipe (302) is connected to the interior of the diversion pipe (304) through the conduit (303). The diameter of the diversion pipe (304) is larger than the diameter of the drain pipe (302).

4. The dust reduction device for open-pit mining operations according to claim 1, characterized in that: The support mechanism (2) includes a column (201) and a sliding column (202). The sliding column (202) is fixedly installed on the fixed base (1) by bolts. The column (201) is installed at the bottom end of the sliding column (202). The sliding column (202) and the column (201) are slidably connected.

5. A dust reduction device for open-pit mining operations according to claim 4, characterized in that: The support mechanism (2) also includes a hydraulic rod (203), the top of the column (201) is fixedly installed with the hydraulic rod (203), and the telescopic end of the hydraulic rod (203) is fixedly connected with a sliding column (202).

6. A dust reduction device for open-pit mining operations according to claim 4, characterized in that: The water inlet mechanism (4) includes a water inlet pipe (401) and a card holder (402). Several card holders (402) are fixedly connected at equal intervals on the sliding column (202), and the water inlet pipe (401) is installed in the card holder (402).

7. A dust reduction device for open-pit mining operations according to claim 6, characterized in that: The inlet pipe (401) is fixedly connected to the connecting pipe (305) by bolts, and the inlet pipe (401) is internally connected to the diversion pipe (304) through the connecting pipe (305).

8. A dust reduction device for open-pit mining operations according to claim 6, characterized in that: The water inlet mechanism (4) also includes a rubber pad (403). The inner wall of the card holder (402) is bonded with a rubber pad (403). The water inlet pipe (401) abuts against the rubber pad (403), and the rubber pad (403) is arranged in an arc-shaped structure.

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