Pneumatic transmission type device for jointly removing gas and dust

Abstract

The invention discloses a pneumatic transmission type gas and dust joint removal device, and belongs to the technical field of mine underground safety equipment, the pneumatic transmission type gas and dust joint removal device comprises a shell, a gas and dust collection assembly, a gas decomposition assembly and a foam spraying assembly are arranged in the shell, and the gas and dust collection assembly comprises a first-stage throat pipe; the lower portion of the first-stage throat pipe is communicated with a first pressure ventilation pipe quick connector penetrating through the stainless steel shell, one side of the first-stage throat pipe is connected with a first-stage diffusion pipe, the upper portion of the first-stage diffusion pipe is communicated with a telescopic air suction arm, and the tail end of the telescopic air suction arm is communicated with a flexible rotating cover opening. According to the pneumatic transmission type gas and dust joint removal device, the telescopic air suction arm, the flexible rotary cover opening and the gas decomposition assembly are arranged, a dust source can be covered in all directions, gas and dust can be efficiently removed to prevent explosion, compressed air is adopted as a power source, spark generation can be avoided, and the device is convenient to use. The safety, reliability and applicability of underground use are improved, residues and waste liquid can be collected, and pollution to the working environment is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of underground mine safety equipment, and in particular to a pneumatically driven gas and dust removal device. Background Art

[0002] With the expansion of coal mine production scale and the continuous improvement of mechanized production, dust and gas pollution seriously affect the production efficiency of coal mines. Therefore, dust and gas control has always been an important issue, especially in the process of underground coal mining, the hazards of flammable and explosive dust and gas always exist. There is a close connection between dust and gas explosions in coal mines. Gas explosions and coal dust explosions often occur simultaneously in coal mines, because the shock wave generated by the gas explosion can blow up the deposited coal dust. When the coal dust concentration reaches the explosion range, it will cause the coal dust to participate in the secondary explosion after the explosion flame that lags behind the explosion shock wave is transmitted. Therefore, once a gas or dust explosion accident occurs, it will cause catastrophic consequences. Therefore, dust and gas concentration control is very important in the process of coal mining. Although traditional dust removal and gas control devices can play a certain role in dealing with large amounts of dust and gas accumulation, they often fail to achieve the ideal effect of dust removal and gas coordinated control due to inconvenient movement, small coverage, single dust removal or gas control function and low efficiency. Therefore, there is an urgent need to design a gas and dust co-control device that is easy to move, fully functional, has a wide coverage, and is highly efficient. Summary of the invention

[0003] The purpose of the present invention is to provide a pneumatically driven gas and dust removal device, which is provided with a telescopic suction arm, a flexible rotating hood and a gas decomposition component, which can cover the dust source in all directions and can efficiently remove gas and dust to prevent explosion. The use of compressed air as a power source can avoid the generation of sparks, improve the safety, reliability and applicability of underground use, and the gas decomposition component is connected to a solid-liquid separator to collect residues and waste liquid to avoid polluting the working environment.

[0004] To achieve the above-mentioned purpose, the present invention provides a pneumatically driven gas and dust removal device, including a shell, in which a gas dust collection component, a gas decomposition component and a foam spraying component are arranged, and the gas dust collection component includes a first-level throat, the lower part of the first-level throat is connected to a first compressed air pipe quick connector that runs through the stainless steel shell, one side of the first-level throat is connected to a first-level diffusion pipe, the upper part of the first-level diffusion pipe is connected to a telescopic suction arm, and the end of the telescopic suction arm is connected to a flexible rotating hood.

[0005] Preferably, the outer walls of the first-stage throat and the first-stage diffuser are in contact with the inner wall of the outer shell, an air inlet is provided on the other side of the first-stage throat, a filter is installed at the end of the air inlet, a supercharger is installed on the inside of the air inlet, the supercharger is close to the first-stage throat, and the center lines of the two are on the same horizontal line.

[0006] Preferably, a control valve and a compressed air filter are installed on the first compressed air pipe quick connector, a detachable filter bag is installed at the middle position of the first-level diffuser, and filter bag handles are installed above and below the detachable filter bag.

[0007] Preferably, a feeding port is provided on the top of the gas decomposition component, a liquid holding box is provided on one side of the feeding port, the bottom of the liquid holding box is connected to the high-pressure rotating nozzle, the high-pressure rotating nozzle is located inside the gas decomposition component, a liquid injection port is provided on the top of the liquid holding box, filters are installed on both sides of the gas decomposition component, distribution plates are evenly distributed inside the gas decomposition component, reactants are placed on the distribution plates, and the bottom of the gas decomposition component is connected to the solid-liquid separator through a slag discharge port.

[0008] Preferably, the foam spraying system includes a secondary throat pipe, the upper part of which is connected to a second compressed air pipe quick connector that passes through the stainless steel shell, a cyclone is installed on one side of the inner part of the secondary throat pipe, one side of the secondary throat pipe is connected to a secondary diffuser, an axial flow fan is installed in the middle position of the secondary diffuser, a fixing component is installed on the axial flow fan near the narrow side of the secondary diffuser, a water ring is installed at the end of the secondary diffuser, foam nozzles are evenly distributed on the water ring, the lower part of the water ring is connected to a stainless steel pneumatic diaphragm pump through an infusion pipeline, the stainless steel pneumatic diaphragm pump is provided with an air supply port and a liquid supply port, and the outer walls of the secondary throat pipe and the secondary diffuser are in contact with the inner wall of the shell.

[0009] Preferably, a load-bearing bracket is welded under the shell, and two fixing rings are provided on the top of the shell. The two fixing rings are respectively located above the primary throat and the secondary throat. The stainless steel pneumatic diaphragm pump is installed on the load-bearing bracket, and the load-bearing bracket and the shell are both made of stainless steel.

[0010] Therefore, the present invention adopts the above-mentioned gas pressure transmission type gas and dust removal device, which has the following beneficial effects:

[0011] 1. The telescopic suction arm and flexible rotating hood are set to cover the dust source in all directions;

[0012] 2. Equipped with detachable filter bags and gas decomposition components, which can effectively remove gas and dust to prevent explosion;

[0013] 3. Using compressed air as the power source can avoid sparks and improve the safety, reliability and applicability of underground use;

[0014] 4. The gas decomposition component is connected to the solid-liquid separator to collect residues and waste liquid to avoid polluting the working environment.

[0015] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1The present invention is a schematic structural diagram of a gas pressure transmission type gas and dust removal device.

[0017] Reference numerals

[0018] 1. Air inlet; 2. Supercharger; 3. Filter; 4. Load-bearing bracket; 5. First compressed air pipe quick connector; 6. Control valve; 7. Compressed air filter; 8. First-stage throat; 9. First-stage diffuser; 10. Removable filter bag; 11. Filter bag handle; 12. Telescopic suction arm; 13. Flexible rotating hood; 14. Fixed ring; 15. Feeding port; 16. Liquid injection port; 17. Liquid holding box; 18. High-pressure rotating nozzle; 19. , solid-liquid separator; 20, gas decomposition component; 21, distribution plate; 22, slag discharge port; 23, reactant; 24, shell; 25, air supply port; 26, liquid supply port; 27, stainless steel pneumatic diaphragm pump; 28, infusion pipeline; 29, water ring; 30, foam nozzle; 31, axial flow fan; 32, fixing component; 33, secondary diffuser; 34, cyclone; 35, secondary throat; 36, second compressed air duct quick connector. DETAILED DESCRIPTION

[0019] The technical solution of the present invention is further described below through the accompanying drawings and embodiments.

[0020] Unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] Embodiment 1

[0022] like Figure 1As shown, the present invention provides a pneumatically driven gas and dust removal device, comprising a housing 24, in which a gas dust collection component, a gas decomposition component 20 and a foam spraying component are arranged, and the housing 24 protects the gas dust collection component, the gas decomposition component 20 and the foam spraying component. The gas dust collection component comprises a primary throat pipe 8, and a first compressed air pipe quick connector 5 penetrating the stainless steel housing 24 is connected below the primary throat pipe 8, and compressed air can enter the first primary throat pipe 8 through the first compressed air pipe quick connector 5. A control valve 6 and a compressed air filter 7 are installed on the first compressed air pipe quick connector 5, and the control valve 6 can control the on and off of the first compressed air pipe quick connector 5, and the compressed air filter 7 can filter the compressed air.

[0023] A primary diffuser 9 is connected to one side of the primary throat 8. The outer walls of the primary throat 8 and the primary diffuser 9 are in contact with the inner wall of the housing 24. The primary diffuser 9 can reduce the airflow velocity. A telescopic suction arm 12 is connected above the primary diffuser 9, and a flexible rotating hood 13 is connected to the end of the telescopic suction arm 12. The telescopic suction arm 12 and the flexible rotating hood 13 can be used to treat the corners around the device according to specific conditions.

[0024] An air inlet 1 is provided on the other side of the first-level throat 8, and the air under the mine enters through the air inlet 1. A filter 3 is installed at the end of the air inlet 1, and the filter 3 can preliminarily filter the dust in the air. A supercharger 2 is installed on the inner side of the air inlet 1, and the supercharger 2 allows the gas to enter from the air inlet 1, and the supercharger generates a high-speed wind flow. The supercharger 2 is close to the first-level throat 8, and the center lines of the two are on the same horizontal line. Under the action of the supercharger 2, the high-speed wind flow enters the first-level diffuser 9. A detachable filter bag 10 is installed in the middle position of the first-level diffuser 9, and the detachable filter bag 10 will filter the dust in the high-speed wind flow. The detachable filter bag 10 is equipped with filter bag handles 11 above and below, which are convenient for installing and disassembling the detachable filter bag 10 and ensuring the sealing.

[0025] A feeding port 15 is provided at the top of the gas decomposition component 20, and a reactant 23 can be added into the gas decomposition component 20 through the feeding port 15. A liquid holding box 17 is provided on one side of the feeding port 15, and a hydrogen peroxide solution is contained in the liquid holding box 17. The hydrogen peroxide solution can remove gas from the air, and can effectively remove gas together with the reactant 23. The bottom of the liquid holding box 17 is connected to a high-pressure rotary nozzle 18, and the high-pressure rotary nozzle 18 is located inside the gas decomposition component 20. The hydrogen peroxide solution in the liquid holding box 17 can be sprayed inside the gas decomposition component 20 through the high-pressure rotary nozzle 18.

[0026] A liquid injection port 16 is provided at the top of the liquid holding box 17, and the hydrogen peroxide solution can be injected into the liquid holding box 17 through the liquid injection port 16. Filter screens 3 are installed on both sides of the gas decomposition component 20, and the filter screens 3 can filter dust in the air. Distribution plates 21 are evenly distributed inside the gas decomposition component 20, and reactants 23 are placed on the distribution plates 21. The reactants 23 are FeN4 / GN, which can remove gas from the air. The bottom of the gas decomposition component 20 is connected to the solid-liquid separator 19 through the slag discharge port 22, which can effectively collect residues and waste liquid.

[0027] The foam spraying system includes a secondary throat pipe 35. The outer walls of the secondary throat pipe 35 and the secondary diffuser 33 are in contact with the inner wall of the shell 24. The upper part of the secondary throat pipe 35 is connected to the second compressed air pipe quick connector 36 that penetrates the stainless steel shell 24. The compressed air enters the secondary throat pipe 35 through the second compressed air pipe quick connector 36. A cyclone 34 is installed on one side of the inside of the secondary throat pipe 35, and the cyclone 34 can achieve gas-liquid separation. One side of the secondary throat pipe 35 is connected to the secondary diffuser 33, and an axial flow fan 31 is installed in the middle position of the secondary diffuser 33. The compressed air and the high-speed wind flow pass through the axial flow fan 31 and drive it to rotate, thereby reinforcing the high-speed wind flow. A fixing component 32 is installed on the narrow side of the axial flow fan 31 near the secondary diffuser 33, and the fixing component 32 can fix the axial flow fan 31.

[0028] A water ring 29 is installed at the end of the secondary diffusion tube 33, and foam nozzles 30 are evenly distributed on the water ring 29. The bottom of the water ring 29 is connected to the stainless steel pneumatic diaphragm pump 27 through the infusion pipeline 28. The stainless steel pneumatic diaphragm pump 27 is provided with an air supply port 25 and a liquid supply port 26. The dust remover enters the stainless steel pneumatic diaphragm pump 27 from the liquid supply port 26. The dust remover is a two-phase foam dust remover OCAA, and its foaming performance, foam stabilization performance and wetting performance are greatly improved compared with traditional dust removers. High-pressure air enters the stainless steel pneumatic diaphragm pump 27 from the air supply port 25, driving the stainless steel pneumatic diaphragm pump 27 to transfer the dust remover to the water ring 29 through the infusion pipeline 28. The dust remover is sprayed out from the foam nozzle 30 under the action of the high-pressure air for dust removal.

[0029] A load-bearing bracket 4 is welded below the housing 24, and a stainless steel pneumatic diaphragm pump 27 is mounted on the load-bearing bracket 4. The load-bearing bracket 4 and the housing 24 are both made of stainless steel, and the load-bearing bracket 4 can support the housing 24 and the stainless steel pneumatic diaphragm pump 27. Two fixing rings 14 are provided on the top of the housing 24, and the two fixing rings 14 are respectively located above the primary throat 8 and the secondary throat 35. When it needs to be moved, the rope can be passed through the fixing rings 14 for hoisting.

[0030] When the pneumatically driven gas and dust removal device provided by the present invention is used, the reactant 23 is added from the feed port 15 and evenly scattered in the gas decomposition component 20 through the distribution plate 21. A hydrogen peroxide solution is added from the liquid injection port 16 to the liquid holding tank 17 and sprayed into the gas decomposition component 20 by the high-pressure rotating nozzle 18. A dust remover is added from the liquid supply port 26.

[0031] At the same time, compressed air enters from the first compressed air pipe quick connector 5, passes through the compressed air filter 7 and enters the first-level throat 8. Under the action of the supercharger 2, the high-speed wind flow passes through the filter 3 at the air inlet 1 and the detachable filter bag 10 at the first-level diffuser 9 in turn to achieve the purpose of dust filtration. At the same time, the air inhaled by the flexible rotating cover 13 is also collected through the first-level diffuser 9, and the compressed air after dust filtration enters the gas decomposition component 20, thereby removing the gas. Then the high-speed wind flow enters the second-level throat 35 again, and at the same time, the compressed air enters the second-level throat 35 from the second compressed air pipe quick connector 36, and then passes through the second-level diffuser 33, driving the axial flow fan 31 to rotate, thereby strengthening the high-speed wind flow again. The high-pressure air enters the stainless steel pneumatic diaphragm pump 27 from the air supply port 25, driving the stainless steel pneumatic diaphragm pump 27 to transfer the dust remover to the water ring 29 through the infusion pipeline 28, and then the foam nozzle 30 sprays the sprayed dust remover over a large area under the action of the high-speed wind flow, ultimately achieving efficient treatment of gas and dust.

[0032] Therefore, the present invention adopts the above-mentioned pneumatically driven gas and dust removal device, and is provided with a telescopic suction arm, a flexible rotating hood and a gas decomposition component, which can cover the dust source in all directions and can efficiently remove gas and dust to prevent explosion. The use of compressed air as a power source can avoid the generation of sparks, thereby improving the safety, reliability and applicability of underground use. The gas decomposition component is connected to the solid-liquid separator to collect residues and waste liquid to avoid polluting the working environment.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A gas pressure driven gas and dust removal device, characterized in that: It includes an outer shell, in which a gas dust collection component, a gas decomposition component and a foam spraying component are arranged. The gas dust collection component includes a first-level throat pipe, the lower part of which is connected to a first compressed air pipe quick connector that runs through the stainless steel outer shell, one side of the first-level throat pipe is connected to a first-level diffusion pipe, the upper part of the first-level diffusion pipe is connected to a telescopic suction arm, and the end of the telescopic suction arm is connected to a flexible rotating hood.

2. The pneumatically driven gas and dust removal device according to claim 1, characterized in that: The outer walls of the first-stage throat and the first-stage diffuser are in contact with the inner wall of the shell. An air inlet is arranged on the other side of the first-stage throat. A filter is installed at the end of the air inlet. A supercharger is installed inside the air inlet. The supercharger is close to the first-stage throat, and the center lines of the two are on the same horizontal line.

3. The pneumatically driven gas and dust removal device according to claim 1, characterized in that: A control valve and a compressed air filter are installed on the first compressed air pipe quick connector, a detachable filter bag is installed at the middle position of the first-level diffusion pipe, and filter bag handles are installed above and below the detachable filter bag.

4. The pneumatically driven gas and dust removal device according to claim 1, characterized in that: A feeding port is provided on the top of the gas decomposition component, a liquid holding box is provided on one side of the feeding port, the bottom of the liquid holding box is connected to a high-pressure rotating nozzle, the high-pressure rotating nozzle is located inside the gas decomposition component, a liquid injection port is provided on the top of the liquid holding box, filters are installed on both sides of the gas decomposition component, distribution plates are evenly distributed inside the gas decomposition component, reactants are placed on the distribution plates, and the bottom of the gas decomposition component is connected to the solid-liquid separator through a slag discharge port.

5. The pneumatically driven gas and dust removal device according to claim 1, characterized in that: The foam spraying system includes a secondary throat pipe, the upper part of which is connected to a second compressed air pipe quick connector penetrating a stainless steel shell, a cyclone is installed on one side of the inner part of the secondary throat pipe, one side of the secondary throat pipe is connected to a secondary diffuser, an axial flow fan is installed in the middle of the secondary diffuser, a fixing component is installed on the axial flow fan near the narrow side of the secondary diffuser, a water ring is installed at the end of the secondary diffuser, foam nozzles are evenly distributed on the water ring, the lower part of the water ring is connected to a stainless steel pneumatic diaphragm pump through an infusion pipeline, an air supply port and a liquid supply port are provided on the stainless steel pneumatic diaphragm pump, and the outer walls of the secondary throat pipe and the secondary diffuser are in contact with the inner wall of the shell.

6. The pneumatically driven gas and dust removal device according to claim 5, characterized in that: A load-bearing bracket is welded under the shell, and two fixing rings are arranged on the top of the shell. The two fixing rings are respectively located above the primary throat pipe and the secondary throat pipe. The stainless steel pneumatic diaphragm pump is installed on the load-bearing bracket, and the load-bearing bracket and the shell are both made of stainless steel.

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