An underground mining dust removal device for mining engineering

Abstract

The utility model belongs to mining engineering technical field discloses a kind of underground mining dust removal device for mining engineering, including dust removal host, and the both ends lateral wall of dust removal host is respectively fixedly connected with negative pressure air suction pump and gas-collecting hood, the bottom of dust removal host is fixedly connected with water storage tank, and the lateral wall of water storage tank is fixedly connected with reflux pipe.The utility model provides that multiple groups of atomizing nozzles are arranged around on atomizing spray frame, clean water in water tank is transported to spray frame by water pump, and fine water mist is sprayed out by high-pressure atomization through atomizing nozzle, water mist is fully mixed with dust-containing airflow in host cavity, uses water mist adsorption to wrap dust particle, and realizes wet dust reduction.

Description

Technical Field

[0001] This utility model belongs to the field of mining engineering technology, and in particular relates to a dust removal device for underground mining in mining engineering. Background Technology

[0002] Mining engineering is an engineering technology field that studies mineral resource exploration, development and tunneling, ore body mining, surrounding rock support, ventilation and drainage, transportation and hoisting, disaster prevention and control, and mine safety management. It is divided into two major modes: open-pit mining and underground mining, to achieve safe and efficient extraction of resources such as coal, metal ores, and non-metallic minerals.

[0003] In existing technologies, during the use of mining engineering, mineral resources are affected by excavation or blasting, resulting in dust. If the dust is not treated in a timely manner, the mining environment will become more severe, affecting subsequent mining operations. Utility Model Content

[0004] The purpose of this invention is to address the problem that in the process of mining engineering, mineral resources are affected by dust generated during excavation or blasting. If the dust is not treated in a timely manner, it will lead to a harsh mining environment and affect subsequent mining operations. Therefore, this invention proposes an underground mining dust removal device for mining engineering.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A dust removal device for underground mining in mining engineering includes a dust removal main unit. A negative pressure suction pump and a gas collection hood are fixedly connected to the side walls at both ends of the dust removal main unit, respectively. A water storage tank is fixedly connected to the bottom of the dust removal main unit, and a return pipe is fixedly connected to the side wall of the water storage tank. A water pump is fixedly connected to the top of the dust removal main unit. An atomizing spray frame is installed inside the dust removal main unit, and multiple atomizing nozzles are arranged around the inner wall of the atomizing spray frame. The water outlet pipe of the water pump extends into the interior of the dust removal main unit and is fixedly connected to the atomizing spray frame. The water inlet pipe of the water pump is fixedly connected to the return pipe. A filter cartridge is installed on the inner wall of the dust removal main unit, and the filter cartridge is located outside the air inlet pipe of the negative pressure suction pump.

[0006] Preferably, an opening is provided at the connection between the dust removal host and the water storage tank, and a filter screen is fixedly connected to the inner wall of the opening of the dust removal host.

[0007] Preferably, a support base is fixedly connected to the inner wall of the bottom of the dust removal host, and a connecting plate is fixedly connected to the side wall of the support base. The end of the filter cartridge facing away from the negative pressure air pump is located on the outside of the connecting plate.

[0008] Preferably, a positioning block is fixedly connected to one end of the filter cartridge away from the connecting plate, and a slot is provided on the inner wall of the dust removal host, with the positioning block inserted into the inner wall of the slot.

[0009] Preferably, the inner wall of the support base has a notch, the inner wall of the connecting plate has a through hole, a threaded ring is fixedly connected to the inner wall of the support base at the notch, a screw is threadedly connected to the inner wall of the threaded ring, a limit block is fixedly connected to the end of the screw, a slot is opened at one end of the filter cartridge relative to the connecting plate, and the limit block is inserted into the inner wall of the slot.

[0010] Preferably, the filter cartridge is fixedly connected to the inner wall of the slot with a sealing gasket, the limiting block is inserted into the inner wall of the sealing gasket, the end of the screw away from the limiting block is fixedly connected to a handle, and the side wall of the limiting block is provided with a positioning retaining ring and fitted to the end of the filter cartridge.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. The underground mining dust removal device used in this mining project uses multiple sets of atomizing nozzles arranged around an atomizing spray frame. A water pump draws clean water from the water tank and delivers it to the spray frame. The water is then atomized by the atomizing nozzles and sprayed out as a fine water mist. The water mist mixes thoroughly with the dust-laden airflow in the main unit cavity, and the water mist adsorbs and encapsulates the dust particles to achieve wet dust suppression.

[0012] 2. The underground dust removal device used in this mining project uses a support base and connecting plate inside the main unit to stably install the filter cartridge. The filter cartridge is arranged outside the air inlet of the negative pressure air pump. The airflow, which has been initially purified by water mist wet filtration, then passes through the filter cartridge for dry fine filtration, further intercepting residual fine dust. The dual dust removal significantly improves the air purification effect underground. The clean gas is finally discharged by the negative pressure air pump. One end of the filter cartridge is inserted into the slot on the inner wall of the main unit through a positioning block to achieve initial alignment and limitation.

[0013] 3. The underground dust removal device used in this mining project has a threaded ring inside the support base. Turning the handle can drive the screw to rotate and advance, so that the end block can be inserted into the end slot of the filter cartridge, completing the bidirectional locking and fixing of the filter cartridge. A sealing gasket is installed inside the slot, which can achieve a seal after insertion to prevent dust-laden airflow from leaking out of the assembly gap and ensure the filtration seal. When the filter cartridge is replaced in the later maintenance, the handle can be turned in the opposite direction to remove the insert block and directly pull out the filter cartridge for disassembly and cleaning. The maintenance operation is simple and convenient. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 Enlarged schematic diagram of the structure of part A in the middle; Figure 3This is a schematic diagram of the limiting insert block of this utility model.

[0015] In the diagram: 1 Dust collector, 2 Negative pressure air pump, 3 Air collection hood, 4 Water tank, 5 Return pipe, 6 Water pump, 7 Atomizing spray frame, 8 Atomizing nozzle, 9 Filter screen, 10 Support base, 11 Connecting plate, 12 Filter cartridge, 13 Positioning block, 14 Threaded ring, 15 Screw, 16 Limiting block, 17 Sealing gasket, 18 Handle. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] like Figures 1-3 The diagram shows a dust removal device for underground mining operations, comprising a dust removal main unit 1. A negative pressure suction pump 2 and a gas collection hood 3 are fixedly connected to the side walls at both ends of the dust removal main unit 1, respectively. The negative pressure suction pump 2 is installed on one side of the device, and the gas collection hood 3 is installed on the other side. The negative pressure suction pump generates negative pressure, and the gas collection hood collects a wide range of dusty exhaust gases such as rock dust and coal dust generated during underground mining operations, achieving centralized collection of dust-laden airflow. A water storage tank 4 is fixedly connected to the bottom of the dust removal main unit 1, and a return pipe 5 is fixedly connected to the side wall of the water storage tank 4. A water pump 6 is fixedly connected to the top of the dust removal main unit 1. An atomizing spray frame 7 is installed inside the dust removal main unit 1. The water storage tank 4 is integrally installed at the bottom of the dust removal main unit for storing water used for dust removal. The side wall of the water storage tank is connected to the return pipe 5. The water pump 6 is fixed to the top of the main unit. The inlet of the water pump 6 is connected to the return pipe, and the outlet is connected to the atomizing spray frame 7 inside the main unit, forming a water circulation loop. The inner wall of the atomizing spray frame 7 is surrounded by multiple atomizing nozzles 8. The water outlet pipe of the water pump 6 extends into the interior of the dust removal host 1 and is fixedly connected to the atomizing spray frame 7. The water inlet pipe of the water pump 6 is fixedly connected to the return pipe 5. Multiple sets of atomizing nozzles 8 are arranged around the atomizing spray frame. The water pump 6 draws clean water from the water storage tank 4 and delivers it to the spray frame. The water is atomized by the atomizing nozzles and sprayed out as a fine water mist. The water mist is fully mixed with the dust-laden airflow in the host cavity. The water mist adsorbs and encapsulates the dust particles to achieve wet dust removal. The inner wall of the dust removal host 1 is equipped with a filter cartridge 12. The filter cartridge 12 is located outside the air inlet pipe of the negative pressure suction pump 2. The airflow that has been initially purified by the water mist wet method passes through the filter cartridge 12 for dry fine filtration, further intercepting residual fine dust. The dual dust removal greatly improves the air purification effect in the well. The clean gas is finally discharged by the negative pressure suction pump 2.

[0018] An opening is provided at the connection between the dust collector 1 and the water storage tank 4. A filter screen 9 is fixedly connected to the inner wall of the opening of the dust collector 1. The filter screen 9 is installed at the connection between the dust collector 1 and the water storage tank to intercept large particles of coal gangue impurities after sedimentation, allowing only clean water to flow back to the water storage tank, avoiding impurities from clogging the pipes and nozzles, and ensuring smooth water circulation. A support base 10 is fixedly connected to the inner wall of the bottom of the dust collector 1. A connecting plate 11 is fixedly connected to the side wall of the support base 10. The end of the filter cartridge 12 facing away from the negative pressure air pump 2 is located on the outside of the connecting plate 11. A positioning block 13 is fixedly connected to the end of the filter cartridge 12 facing away from the connecting plate 11. A slot is provided on the inner wall of the dust collector 1. The positioning block 13 is inserted into the inner wall of the slot. One end of the filter cartridge 12 is inserted into the slot on the inner wall of the main unit through the positioning block 13 to achieve initial alignment and limitation.

[0019] The dust removal host 1 is the main cavity of the complete set of underground dust removal equipment. A negative pressure air pump 2 is installed on one side of the equipment, and a gas collection hood 3 is installed on the other side. The negative pressure air pump generates negative pressure suction, and the gas collection hood collects the dust and exhaust gas such as rock dust and coal dust generated in the underground mining operation over a large area, thus completing the centralized collection of dust-laden airflow.

[0020] A water storage tank 4 is integrated into the bottom of the dust collector to store water for dust removal. The side wall of the water storage tank is connected to a return pipe 5. A water pump 6 is fixed on the top of the main unit. The water inlet of the water pump 6 is connected to the return pipe, and the water outlet is connected to the atomizing spray frame 7 inside the main unit to form a water circulation loop. Multiple sets of atomizing nozzles 8 are arranged around the atomizing spray frame. The water pump 6 draws clean water from the water storage tank 4 and delivers it to the spray frame. The water is then atomized by the atomizing nozzles and sprayed out as a fine water mist. The water mist mixes thoroughly with the dust-laden airflow inside the main unit cavity. The water mist adsorbs and encapsulates the dust particles, achieving wet dust suppression.

[0021] A filter screen 9 is installed at the connection between the dust collector and the water storage tank. This screen can intercept large particles of coal gangue impurities after settling, allowing only clean water to flow back into the water storage tank. This prevents impurities from clogging the pipes and nozzles, ensuring smooth water circulation.

[0022] The filter cartridge 12 is stably mounted inside the main unit by relying on the support base 10 and the connecting plate 11. The filter cartridge 12 is arranged outside the air inlet of the negative pressure pump. The airflow that has been initially purified by water mist wet filtration passes through the filter cartridge 12 for dry fine filtration, further intercepting residual fine dust. The dual dust removal greatly improves the air purification effect in the well. The clean gas is finally discharged by the negative pressure pump 2. One end of the filter cartridge 12 is inserted into the slot on the inner wall of the main unit through the positioning block 13 to achieve initial alignment and limitation.

[0023] For ease of maintenance and operation, such as Figures 1-3As shown, the inner wall of the support base 10 has a notch, and the inner wall of the connecting plate 11 has a through hole. A threaded ring 14 is fixedly connected to the inner wall of the support base 10 at the notch. A screw 15 is threadedly connected to the inner wall of the threaded ring 14. A limit block 16 is fixedly connected to the end of the screw 15. A slot is opened at one end of the filter cartridge 12 relative to the connecting plate 11. The limit block 16 is inserted into the inner wall of the slot. A sealing gasket 17 is fixedly connected to the inner wall of the filter cartridge 12 at the slot. The sealing gasket 17 is installed inside the slot on the inner wall of the sealing gasket 17. After insertion, it achieves sealing and blockage, preventing dust-laden airflow from leaking through the assembly gap and ensuring the filter's sealing performance. A handle 18 is fixedly connected to the end of the screw 15 away from the limiting plug 16. Rotating the handle 18 can drive the screw 15 to rotate and advance, so that the end limiting plug 16 is inserted into the end slot of the filter cartridge 12, completing the bidirectional locking and fixing of the filter cartridge 12. A positioning retaining ring is provided on the side wall of the limiting plug 16 and is fitted to the end of the filter cartridge 12.

[0024] The support base is equipped with a threaded ring 14. Rotating the handle 18 can drive the screw 15 to rotate and advance, so that the end limiting block 16 can be inserted into the end slot of the filter cartridge 12, completing the bidirectional locking and fixing of the filter cartridge 12. A sealing gasket 17 is installed inside the slot, which achieves sealing after insertion, preventing dust-laden airflow from leaking through the assembly gap and ensuring filtration sealing. When the filter cartridge is replaced in the later maintenance, the limiting block 16 can be removed by rotating the handle 18 in the opposite direction, and the filter cartridge 12 can be directly pulled out for disassembly and cleaning. The maintenance operation is simple and convenient.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A dust removal device for underground mining engineering, comprising a dust removal host (1), characterized in that: The dust collector (1) has a negative pressure suction pump (2) and a gas collection hood (3) fixedly connected to its two side walls respectively. The bottom of the dust collector (1) is fixedly connected to a water tank (4). The side wall of the water tank (4) is fixedly connected to a return pipe (5). The top of the dust collector (1) is fixedly connected to a water pump (6). The dust collector (1) is equipped with an atomizing spray frame (7). The inner wall of the atomizing spray frame (7) is surrounded by multiple atomizing nozzles (8). The water outlet pipe of the water pump (6) extends into the dust collector (1) and is fixedly connected to the atomizing spray frame (7). The water inlet pipe of the water pump (6) is fixedly connected to the return pipe (5). The inner wall of the dust collector (1) is equipped with a filter cartridge (12). The filter cartridge (12) is located outside the air inlet pipe of the negative pressure suction pump (2).

2. The underground mining dust removal device for mining engineering according to claim 1, characterized in that: An opening is provided at the connection between the dust removal host (1) and the water storage tank (4), and a filter screen (9) is fixedly connected to the inner wall of the opening of the dust removal host (1).

3. The underground mining dust removal device for mining engineering according to claim 1, characterized in that: The bottom inner wall of the dust removal host (1) is fixedly connected to a support base (10), and a connecting plate (11) is fixedly connected to the side wall of the support base (10). The end of the filter cartridge (12) facing away from the negative pressure air pump (2) is located on the outside of the connecting plate (11).

4. The underground mining dust removal device for mining engineering according to claim 1, characterized in that: The filter cartridge (12) is fixedly connected to a positioning block (13) at one end away from the connecting plate (11). The inner wall of the dust removal host (1) is provided with a slot, and the positioning block (13) is inserted into the inner wall of the slot.

5. A dust removal device for underground mining engineering according to claim 3, characterized in that: The inner wall of the support base (10) has a notch, and the inner wall of the connecting plate (11) has a through hole. The support base (10) is fixedly connected to the inner wall of the notch with a threaded ring (14). The inner wall of the threaded ring (14) is threadedly connected with a screw (15). The end of the screw (15) is fixedly connected with a limiting plug (16). The filter cylinder (12) has a slot at one end relative to the connecting plate (11). The limiting plug (16) is inserted into the inner wall of the slot.

6. A dust removal device for underground mining engineering according to claim 5, characterized in that: The filter cartridge (12) is fixedly connected to the inner wall of the slot with a sealing gasket (17). The limiting block (16) is inserted into the inner wall of the sealing gasket (17). The screw (15) is fixedly connected to a handle (18) at one end away from the limiting block (16). The side wall of the limiting block (16) is provided with a positioning retaining ring and is fitted to the end of the filter cartridge (12).

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