Mine harmful gas purification device

Abstract

The application discloses a mine harmful gas purification device and relates to the technical field of mine gas purification. The device comprises a mine gas conveying system, a mine gas purification vehicle and a tail gas purification equipment. The mine gas conveying system comprises a mine tunnel main structure. A plurality of evenly distributed and horizontally arranged ventilation pipes are fixedly installed on the inner wall of the top of the mine tunnel main structure. The outermost ventilation pipe is connected with the input end of the tail gas purification equipment. A plurality of evenly distributed exhaust fans are arranged on the ventilation pipes. The filter cartridge is arranged to make the mixed gas flow enter the inside of the primary filter cabinet, and is conveyed into the filter cartridge through the primary air inlet. Most of the impurities such as dust and particulate matters in the gas flow are intercepted in the filter cartridge, preliminary filtration and dust reduction are realized, the impurity content in the gas flow is greatly reduced, and the accumulation of dust and other impurities in the air duct during the mine ventilation process is effectively prevented. After being wet, the air duct is blocked, and the ventilation efficiency is affected.

Description

Technical Field

[0001] This invention relates to the field of mining gas purification technology, specifically to a device for purifying harmful gases in mine tunnels. Background Technology

[0002] my country is a major mineral-producing country, and the rigid demand for mineral resources leads to high-intensity mining development. Traditional mining production methods suffer from frequent mining accidents, high labor costs, arduous and dangerous mining operations, and difficulty in improving mining efficiency. In particular, coal seams or rock strata adsorb a large amount of gas during the mineralization process, which is released during mining due to the pressure drop. Sulfur-containing minerals (such as pyrite) react with water and oxidize, generating harmful gases such as hydrogen sulfide and sulfur dioxide. Blasting operations also produce a large amount of dust, smoke, nitrogen oxides, and carbon monoxide. All these factors result in mine tunnels containing a large amount of harmful substances. Therefore, mine tunnel purification is a systemic necessity for survival and production.

[0003] Currently, mine tunnel purification mainly relies on "source control, ventilation dilution, and end-of-pipe purification." In daily production, it is necessary to use air ducts and fans to continuously ventilate the mine tunnel to ensure that harmful substances are absorbed and transported in a timely manner. However, the existing mine tunnel ventilation system is not effective in filtering mine tunnel dust. The gas in the mine tunnel is mixed with a large amount of dust and particulate matter. These impurities will gradually accumulate in the air duct, and after being damp, they will stick and clump together, seriously affecting ventilation efficiency. Therefore, a mine tunnel harmful gas purification device is proposed. Summary of the Invention

[0004] The purpose of this invention is to address the problem that existing mine ventilation systems are ineffective at filtering mine dust, and that the gas inside the mine contains a large amount of dust and particulate matter. These impurities gradually accumulate in the ventilation ducts, and become sticky and hardened when damp, seriously affecting ventilation efficiency. This invention provides a mine harmful gas purification device.

[0005] To achieve the above objectives, the present invention specifically adopts the following technical solution: A mine tunnel harmful gas purification device includes a mine tunnel gas conveying system, a mine tunnel gas purification vehicle, and an exhaust gas purification device. The mine tunnel gas conveying system includes a main structure of the mine tunnel. Multiple evenly distributed and horizontally arranged ventilation ducts are fixedly installed on the inner wall of the top of the main structure of the mine tunnel. The outermost ventilation duct is connected to the input end of the exhaust gas purification device. Multiple evenly distributed exhaust fans are installed on each ventilation duct. An inlet pipe and an outlet pipe are fixedly installed at the ends of any two adjacent ventilation ducts. Multiple evenly distributed exhaust fans are arranged inside the main structure of the mine tunnel. A mine gas filtration device, wherein multiple mine gas filtration devices are respectively located between any two adjacent ventilation ducts, the bottom ends of the inlet pipe and the outlet pipe are fixedly installed on the top of the mine gas filtration device, the inlet pipe and the outlet pipe are both connected to the interior of the mine gas filtration device, the interior of the mine gas filtration device is provided with a primary air filter cabinet, the interior of the primary air filter cabinet is fixedly installed with a primary air inlet connected to the inlet pipe, the bottom end of the primary air inlet is fixedly sleeved with a filter cartridge, and multiple evenly distributed air intakes are fixedly installed on the side wall of the ventilation duct.

[0006] Furthermore, multiple uniformly distributed and horizontally arranged first and second infusion pipes are fixedly installed on the inner wall of the main structure of the mine tunnel. Multiple uniformly distributed booster pump cabinets are fixedly installed on the inner wall of the main structure of the mine tunnel. The multiple booster pump cabinets are located between any two adjacent first infusion pipes. The first and second infusion pipes on the same side are connected to the input end of the booster pump cabinet, and the first and second infusion pipes on the other side are connected to the output end of the booster pump cabinet. A first water tap and a second water tap are fixedly installed on the first and second infusion pipes, respectively.

[0007] Furthermore, the mine gas filtration equipment is also equipped with a gas scrubbing cabinet. A secondary air inlet is fixedly installed inside the primary gas filter cabinet. One end of the secondary air inlet is connected to the interior of the gas scrubbing cabinet. A water supply pipe is fixedly installed on one side of the second liquid delivery pipe. The water supply pipe located at the same location is connected to the interior of the gas scrubbing cabinet. Drainage ditches are opened on both sides of the bottom of the main structure of the mine tunnel. Multiple evenly distributed drainage grates are placed on the top of the drainage ditches. A mud discharge valve corresponding to the position of the drainage ditch is set at the bottom of the gas scrubbing cabinet.

[0008] Furthermore, the mine gas purification vehicle includes a vehicle body placed inside the main structure of the mine tunnel. A transport frame is fixedly installed on one side of the vehicle body, and a roof is fixedly installed on the top of the vehicle body. A fog cannon is driven and installed on the top of the roof. A first liquid storage tank and a second liquid storage tank are fixedly installed on the top of the transport frame. The input end of the fog cannon is connected to the output ends of the first liquid storage tank and the second liquid storage tank. A docking tap connected to the first water supply tap and the second water supply tap is fixedly installed on one side of each of the first and second liquid storage tanks. A blower is fixedly installed at the bottom of the transport frame. Air guide plates are fixedly installed on both sides of the blower. One end of each air guide plate is connected to the output end of the blower, and the other end of each air guide plate faces the bottom of the main structure of the mine tunnel.

[0009] Furthermore, the mine gas filtration equipment is equipped with a secondary gas filter cabinet, which is located at the top of the gas washing cabinet and connected to the interior of the gas washing cabinet. The gas outlet pipe is connected to the interior of the second liquid delivery pipe. The interior of the secondary gas filter cabinet contains multiple composite activated carbon mesh plates evenly distributed from top to bottom.

[0010] Furthermore, a suction tank is fixedly installed on the top of the transport vehicle frame, and a suction pipe head is fixedly installed on one side of the suction tank.

[0011] Furthermore, transport cabinets are fixedly installed on both sides of the top of the suction tank.

[0012] Furthermore, an intercepting frame is fixedly installed inside the air intake, and multiple evenly distributed unidirectional films are rotatably installed on the side of the intercepting frame facing the ventilation duct.

[0013] The beneficial effects of this invention are as follows: 1. This invention, by setting up a filter cartridge, allows the mixed airflow to enter the interior of the primary air filter cabinet through the air inlet pipe and be transported to the filter cartridge through the primary air inlet. This allows most of the dust, particulate matter and other impurities carried in the airflow to be intercepted in the filter cartridge, achieving preliminary filtration and dust reduction. This significantly reduces the impurity content in the airflow and effectively prevents dust and other impurities from accumulating inside the ventilation duct during mine ventilation, and from clogging the ventilation duct after becoming damp, thus affecting ventilation efficiency. 2. This invention sets up a gas scrubbing cabinet and a secondary gas filtration cabinet. After the airflow is initially filtered by the primary gas filtration cabinet, it enters the gas scrubbing cabinet through the secondary air inlet for further washing, which further reduces the impurity content in the gas. When the gas flows into the secondary gas filtration cabinet, it is filtered and dehumidified layer by layer by various composite activated carbon mesh plates, which reduces the residue of harmful substances in the gas and prevents the moisture generated by the gas scrubbing from directly entering the air duct. After the gas undergoes multiple tertiary purification processes, it is finally transported to the exhaust gas treatment center to ensure harmless emission. 3. This invention, by setting up a mine tunnel gas purification vehicle, allows personnel to drive the vehicle into the main structure of the mine tunnel after blasting or large-scale mining operations. The first and second liquid storage tanks can store liquids such as water, adsorbents, and catalysts. These liquids are continuously sprayed into the main structure of the mine tunnel by a mist cannon on the top, causing smoke and dust to settle with water. This neutralizes and adsorbs harmful gases such as carbon monoxide, hydrogen sulfide, and methane, achieving rapid and specialized gas purification operations. 4. By setting up a sludge suction tank, the air scrubbing cabinet will also periodically open the sludge discharge valve to directly discharge the internal sewage into the drainage ditch. After a period of time, the sludge that cannot be discharged smoothly will accumulate in the drainage ditch. At this time, personnel will open the drain grate at the corresponding position, extend one end of the pipe into the drainage ditch, and connect the other end to the sludge suction pipe head, so that the sludge suction tank can extract the sludge in the drainage ditch, realize the sewage discharge operation, and prevent the accumulation of sludge, which could lead to the re-release of harmful substances. 5. By setting up a first water supply tap and a second water supply tap, the present invention ensures that the first and second infusion pipes are always supplied with liquids such as water, adsorbent, and catalyst required for gas purification operations. Personnel can drive to the nearest first or second water supply tap and connect the first or second water supply tap to the two docking taps through the pipes to replenish the liquid, so that the mine gas purification vehicle can continue to be put into subsequent purification operations, greatly improving the endurance of the mine gas purification vehicle. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the mine gas conveying system of the present invention; Figure 3 This is the present invention. Figure 2 Schematic diagram of the structure at point A in the middle; Figure 4 This is a three-dimensional structural diagram of the mine gas filtration equipment and booster pump cabinet of the present invention. Figure 5 This is a schematic diagram of the internal three-dimensional structure of the mine gas filtration device of the present invention; Figure 6 This is a first-view three-dimensional structural diagram of the mine gas purification vehicle of the present invention; Figure 7 This is a two-dimensional structural diagram of the mine gas purification vehicle of the present invention from a second perspective; Attached reference numerals: 1. Mine gas conveying system; 101. Main structure of the mine tunnel; 102. Ventilation duct; 103. Exhaust fan; 104. Mine gas filtration equipment; 105. Inlet pipe; 106. Outlet pipe; 107. Primary filter cabinet; 108. Primary air inlet; 109. Filter cartridge; 110. Air intake; 111. First liquid delivery pipe; 112. Second liquid delivery pipe; 113. Booster pump cabinet; 114. First water supply tap; 115. Second water supply tap; 116. Gas scrubbing cabinet; 117. Secondary air inlet; 118. Water supply pipe; 119. Sludge discharge valve; 120. Drainage ditch; 121. Drainage grate; 122. Secondary air filter cabinet; 123. Composite activated carbon mesh plate; 124. Interception frame; 125. One-way film; 2. Mine gas purification vehicle; 201. Vehicle body; 202. Transport frame; 203. Roof; 204. Fog cannon; 205. First liquid storage tank; 206. Second liquid storage tank; 207. Connecting faucet; 208. Blower; 209. Air guide plate; 210. Sewage suction tank; 211. Sewage suction pipe head; 212. Transport cabinet; 3. Exhaust gas purification equipment. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0016] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0017] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0018] In the description of the embodiments of the present invention, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0019] like Figures 1 to 7 As shown, a mine gas purification device includes a mine gas conveying system 1, a mine gas purification vehicle 2, and an exhaust gas purification device 3, such as... Figure 1 , Figure 2 As shown, specifically, the mine gas conveying system 1 includes a mine tunnel main structure 101. Multiple evenly distributed and horizontally arranged ventilation ducts 102 are fixedly installed on the top inner wall of the mine tunnel main structure 101. The outermost ventilation duct 102 is connected to the input end of the exhaust gas purification equipment 3. Multiple evenly distributed exhaust fans 103 are installed on each ventilation duct 102. Figure 4 , Figure 5 As shown, an air inlet pipe 105 and an air outlet pipe 106 are fixedly installed at the ends of any two adjacent ventilation ducts 102 that are close to each other. Multiple evenly distributed mine tunnel gas filtration devices 104 are installed inside the main structure 101 of the mine tunnel. The multiple mine tunnel gas filtration devices 104 are located between any two adjacent ventilation ducts 102. The bottom ends of the air inlet pipe 105 and the air outlet pipe 106 are fixedly installed on the top of the mine tunnel gas filtration device 104. The air inlet pipe 105 and the air outlet pipe 106 are connected to the inside of the mine tunnel gas filtration device 104. A primary air filter cabinet 107 is installed inside the mine tunnel gas filtration device 104. A primary air inlet 108 connected to the air inlet pipe 105 is fixedly installed inside the primary air filter cabinet 107. A filter cartridge 109 is fixedly sleeved at the bottom end of the primary air inlet 108. Multiple evenly distributed air intakes 110 are fixedly installed on the side walls of the ventilation ducts 102.

[0020] More specifically, the mixed gas inside the main structure 101 of the mine tunnel enters the ventilation duct 102 through the air inlets 110 at various locations. Under the suction of the exhaust gas purification equipment 3 at the farthest end and the air pressure of the exhaust fans 103 at various locations, an airflow is formed. This airflow flows along the air duct 102 and the air duct formed by the mine gas filtration equipment 104, the inlet pipe 105, and the outlet pipe 106. By setting up filter cartridges 109, when the mixed airflow flows through the mine gas filtration equipment 104 at each location, the airflow enters the interior of the primary air filter cabinet 107 through the inlet pipe 105 and is transported to the filter cartridge 109 through the primary air inlet 108. This allows most of the dust, particulate matter, and other impurities carried in the airflow to be intercepted in the filter cartridge 109, achieving preliminary filtration and dust reduction. This significantly reduces the impurity content in the airflow and effectively prevents dust and other impurities from accumulating inside the air duct during mine ventilation, which can then become damp and clog the air duct, affecting ventilation efficiency.

[0021] like Figure 3 As shown, specifically, an interception frame 124 is fixedly installed inside the air intake 110, and multiple evenly distributed unidirectional films 125 are rotatably installed on the side of the interception frame 124 facing the ventilation duct 102.

[0022] More specifically, by setting up one-way film 125, when the mine gas is pressurized and enters the air intake 110, the air pressure will push the one-way film 125 inward at a certain angle, so that each one-way film 125 opens and forms an inlet, allowing gas to enter and achieving one-way ventilation, which greatly reduces the leakage of dust in the air duct.

[0023] like Figure 4 , Figure 5 As shown, specifically, the mine gas filtration equipment 104 is also equipped with a gas scrubbing cabinet 116. The primary gas filter cabinet 107 is fixedly installed with a secondary air inlet 117. One end of the secondary air inlet 117 is connected to the interior of the gas scrubbing cabinet 116. A water supply pipe 118 is fixedly installed on one side of the second liquid supply pipe 112. The water supply pipe 118 located at the same location is connected to the interior of the gas scrubbing cabinet 116. The mine gas filtration equipment 104 is also equipped with a secondary gas filter cabinet 122. The secondary gas filter cabinet 122 is located on top of the gas scrubbing cabinet 116 and is connected to the interior of the gas scrubbing cabinet 116. The gas outlet pipe 106 is connected to the interior of the second liquid supply pipe 112. The interior of the secondary gas filter cabinet 122 contains multiple composite activated carbon mesh plates 123 evenly distributed from top to bottom.

[0024] In this embodiment, the composite activated carbon mesh plate 123 uses a mesh frame as the main structure, activated carbon particles as the main carrier, and is mixed with active substances such as potassium permanganate, potassium hydroxide, and calcium oxide, as well as other porous materials, to remove impurities, adsorb harmful substances, absorb water and dehumidify.

[0025] More specifically, by setting up a scrubbing cabinet 116 and a secondary air filter cabinet 122, the airflow is initially filtered by the primary air filter cabinet 107 and then enters the scrubbing cabinet 116 through the secondary air inlet 117. The scrubbing cabinet 116 contains water, and the gas rises in the scrubbing cabinet 116 as continuous bubbles. During this process, the gas is washed, further reducing the impurity content in the gas. When the gas enters the secondary air filter cabinet 122, it is filtered and dehumidified layer by layer by various composite activated carbon mesh plates 123, reducing the residue of harmful substances in the gas and preventing the moisture generated by the scrubbing gas from directly entering the air duct. After undergoing multiple tertiary purification processes, the gas is finally transported to stage 3 for exhaust gas treatment to ensure harmless emission.

[0026] like Figure 6 As shown, specifically, the mine gas purification vehicle 2 includes a vehicle body 201 placed inside the main structure 101 of the mine tunnel. A transport frame 202 is fixedly installed on one side of the vehicle body 201. A roof 203 is fixedly installed on the top of the vehicle body 201. A fog cannon 204 is driven and installed on the top of the roof 203. A first liquid storage tank 205 and a second liquid storage tank 206 are fixedly installed on the top of the transport frame 202. The input end of the fog cannon 204 is connected to the output end of the first liquid storage tank 205 and the second liquid storage tank 206.

[0027] More specifically, by setting up a mine tunnel gas purification vehicle 2, after mine blasting operations or large-scale mining operations, personnel can drive the mine tunnel gas purification vehicle 2 into the main structure 101 of the mine tunnel. The first liquid storage tank 205 and the second liquid storage tank 206 can store liquids such as water, adsorbents and catalysts. The mist cannon 204 on the top continuously sprays the liquids into the main structure 101 of the mine tunnel, causing smoke, dust and other particles to fall with water, neutralizing and adsorbing harmful gases such as carbon monoxide, hydrogen sulfide and methane, and realizing rapid special gas purification operations.

[0028] like Figure 6 , Figure 7 As shown, specifically, a blower 208 is fixedly installed at the bottom of the transport frame 202, and air guide plates 209 are fixedly installed on both sides of the blower 208. One end of each air guide plate 209 is connected to the output end of the blower 208, and the other end of each air guide plate 209 faces the bottom of the main structure 101 of the mine tunnel.

[0029] More specifically, by setting up a blower 208, harmful substances in the gas are mixed with liquid and accumulated on the road surface of the main structure 101 of the mine tunnel. The blower 208 at the bottom blows air to both sides through the air guide plate 209, blowing the sewage on the road surface into the drainage ditches 120 on both sides, and then flowing out under the suction of external equipment.

[0030] like Figure 5 , Figure 6As shown, specifically, a sludge suction tank 210 is fixedly installed on the top of the transport vehicle frame 202, and a sludge suction pipe head 211 is fixedly installed on one side of the sludge suction tank 210. Drainage ditches 120 are provided on both sides of the bottom of the main structure 101 of the mine tunnel. Multiple evenly distributed drainage grates 121 are placed on the top of the drainage ditches 120. A mud discharge valve 119 corresponding to the position of the drainage ditch 120 is provided at the bottom of the air washing cabinet 116.

[0031] More specifically, by setting up a sludge suction tank 210, the air scrubber 116 will also periodically open the sludge discharge valve 119 to directly discharge the internal sewage into the drainage ditch 120. After a period of time, the sludge that cannot be discharged smoothly inside the drainage ditch 120 will accumulate. At this time, personnel will open the corresponding drain grate 121, extend one end of the pipe into the drainage ditch 120, and connect the other end to the sludge suction pipe head 211, so that the sludge suction tank 210 can extract the sludge inside the drainage ditch 120 to achieve sewage discharge, prevent the accumulation of sludge, and prevent the re-release of harmful substances.

[0032] like Figure 2 , Figure 4 As shown, specifically, multiple evenly distributed and horizontally arranged first infusion pipes 111 and second infusion pipes 112 are fixedly installed on the inner wall of the main structure 101 of the mine tunnel. Multiple evenly distributed booster pump cabinets 113 are fixedly installed on the inner wall of the main structure 101 of the mine tunnel. The multiple booster pump cabinets 113 are located between any two adjacent first infusion pipes 111. The first infusion pipes 111 and second infusion pipes 112 on the same side are connected to the input end of the booster pump cabinet 113, and the first infusion pipes 111 and second infusion pipes 112 on the other side are connected to the output end of the booster pump cabinet 113. A first water supply tap 114 and a second water supply tap 115 are fixedly installed on the first infusion pipes 111 and second infusion pipes 112, respectively. Figure 7 As shown, each of the first liquid storage tank 205 and the second liquid storage tank 206 has a connecting tap 207 fixedly installed on one side, which is connected to the first water supply tap 114 and the second water supply tap 115.

[0033] More specifically, by setting up a first water supply tap 114 and a second water supply tap 115, the first liquid delivery pipe 111 and the second liquid delivery pipe 112 are always supplied with liquids such as water, adsorbent, and catalyst required for gas purification operations. The liquids are pressurized and delivered through booster pump cabinets 113 at various locations. When the liquids inside the first liquid storage tank 205 and the second liquid storage tank 206 are exhausted, personnel can drive to the nearest first water supply tap 114 or second water supply tap 115 and connect the first water supply tap 114 or second water supply tap 115 to the two docking taps 207 through pipes to replenish the liquids. This allows the mine gas purification vehicle 2 to continue to be used in subsequent purification operations, greatly improving the endurance of the mine gas purification vehicle 2.

[0034] like Figure 6 , Figure 7 As shown, specifically, transport cabinets 212 are fixedly installed on both sides of the top of the suction tank 210.

[0035] More specifically, by setting up transport cabinet 212, each independent compartment of transport cabinet 212 contains newly manufactured filter cartridges 109 and composite activated carbon mesh plates 123. After the mine gas purification vehicle 2 completes the purification and sewage discharge operation, it begins its return journey. At this time, personnel can replace the filter cartridges 109 and composite activated carbon mesh plates 123 that need maintenance based on the data feedback from flow meters, pressure gauges and other equipment at various points in the air duct, so as to ensure that the mine gas filtration equipment 104 maintains normal purification effect.

[0036] In summary: During routine ventilation, the mixed gas inside the main structure 101 of the mine tunnel enters the ventilation duct 102 through the air intakes 110 at various locations. Under the suction of the exhaust gas purification equipment 3 at the furthest end and the pressurization of the exhaust fans 103 at various locations, airflow is formed. This airflow flows along the ducts 102 and the ventilation system consisting of the mine gas filtration equipment 104, the inlet pipe 105, and the outlet pipe 106. As the mixed airflow passes through the mine gas filtration equipment 104, it enters the primary filter cabinet 107 through the inlet pipe 105 and is then transported to the filter cartridge 109 through the primary inlet 108. This traps most of the dust, particulate matter, and other impurities carried in the airflow within the filter cartridge 109, achieving preliminary filtration and dust reduction, and significantly reducing airflow pollution. The impurity content in the air is effectively reduced to prevent dust and other impurities from accumulating inside the ventilation duct during mine ventilation. This prevents the airflow from becoming damp and clogging the duct, thus affecting ventilation efficiency. After being initially filtered by the primary air filter 107, the airflow enters the secondary air inlet 117 into the gas scrubbing cabinet 116. The gas scrubbing cabinet 116 contains water, and the gas rises in the gas scrubbing cabinet 116 as continuous bubbles. During this process, the gas is washed, further reducing the impurity content in the gas. When the gas enters the secondary air filter 122, it is filtered and dehumidified layer by layer by various composite activated carbon mesh plates 123, reducing the residue of harmful substances in the gas and preventing the moisture generated by the gas scrubbing from directly entering the ventilation duct. After undergoing multiple tertiary purification processes, the gas is finally transported to the 3rd stage for tail gas treatment to ensure harmless emission. During gas purification: After blasting or large-scale mining operations in the mine, personnel can drive the mine tunnel gas purification vehicle 2 into the main structure 101 of the mine tunnel. The first liquid storage tank 205 and the second liquid storage tank 206 can store liquids such as water, adsorbents, and catalysts. These liquids are continuously sprayed into the main structure 101 of the mine tunnel by the top mist cannon 204, causing smoke, dust, etc. to be coated with water and fall down. This neutralizes and adsorbs harmful gases such as carbon monoxide, hydrogen sulfide, and methane, achieving rapid and specialized gas purification. The harmful substances in the gas mix with the liquid and accumulate on the surface of the main structure 101 of the mine tunnel. The blower 208 at the bottom blows air to both sides through the air guide plate 209, blowing the wastewater on the surface into the drainage ditches 120 on both sides. Under the suction of external equipment, the wastewater flows out. The gas washing tank 116 will also periodically open the sludge discharge valve 119 to directly discharge the internal wastewater into the drainage ditch 120. After a period of time, the dirt that cannot be discharged smoothly from the drainage ditch 120 will be discharged. During the accumulation phase, personnel open the corresponding drain grate 121 and insert one end of the pipe into the drainage ditch 120, then connect the other end to the suction pipe head 211, allowing the suction tank 210 to extract the sludge inside the drainage ditch 120, thus achieving sewage discharge and preventing the accumulation of sludge that could lead to the re-release of harmful substances. The first infusion pipe 111 and the second infusion pipe 112 continuously supply water, adsorbent, catalyst, and other liquids required for gas purification operations, which are then pressurized and transported by the booster pump cabinets 113 at various locations. When the liquid inside the first liquid storage tank 205 and the second liquid storage tank 206 is exhausted, personnel can drive to the nearest first water replenishment faucet 114 and second water replenishment faucet 115, and connect the first water replenishment faucet 114 and the second water replenishment faucet 115 to the two docking faucets 207 using pipes to replenish the liquid, enabling the mine gas purification vehicle 2 to continue to be used in subsequent purification operations, thus significantly improving the endurance of the mine gas purification vehicle 2. After gas purification: Each independent compartment of the transport cabinet 212 contains newly manufactured filter cartridges 109 and composite activated carbon mesh plates 123. After the mine gas purification vehicle 2 completes the purification and sewage discharge operations, it begins its return journey. At this time, personnel can replace the filter cartridges 109 and composite activated carbon mesh plates 123 that need maintenance based on the data feedback from the flow meters, pressure gauges and other equipment at various points in the air duct, so as to ensure that the mine gas filtration equipment 104 maintains normal purification effect.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mine tunnel harmful gas purification device characterized by comprising: The system includes a mine tunnel gas conveying system (1), a mine tunnel gas purification vehicle (2), and a tail gas purification device (3). The mine tunnel gas conveying system (1) includes a mine tunnel main structure (101). Multiple evenly distributed and horizontally arranged ventilation ducts (102) are fixedly installed on the top inner wall of the mine tunnel main structure (101). The outermost ventilation duct (102) is connected to the input end of the tail gas purification device (3). Multiple evenly distributed exhaust fans (103) are installed on each ventilation duct (102). An air inlet pipe (105) and an air outlet pipe (106) are fixedly installed at the ends of any two adjacent ventilation ducts (102) that are close to each other. Multiple evenly distributed mine tunnel gas filtration devices (104) are installed inside the mine tunnel main structure (101). The mine gas filtration device (104) is located between any two adjacent ventilation ducts (102). The bottom ends of the inlet pipe (105) and the outlet pipe (106) are fixedly installed on the top of the mine gas filtration device (104). The inlet pipe (105) and the outlet pipe (106) are connected to the interior of the mine gas filtration device (104). The mine gas filtration device (104) is equipped with a primary air filter cabinet (107). The primary air filter cabinet (107) is fixedly installed with a primary air inlet (108) connected to the inlet pipe (105). The bottom end of the primary air inlet (108) is fixedly fitted with a filter cartridge (109). Multiple evenly distributed air inlets (110) are fixedly installed on the side wall of the ventilation duct (102).

2. A mine tunnel harmful gas purification device according to claim 1, characterized in that, Multiple uniformly distributed and horizontally arranged first infusion pipes (111) and second infusion pipes (112) are fixedly installed on the inner wall of the main structure (101) of the mine tunnel. Multiple uniformly distributed booster pump cabinets (113) are fixedly installed on the inner wall of the main structure (101) of the mine tunnel. Multiple booster pump cabinets (113) are located between any two adjacent first infusion pipes (111). The first infusion pipes (111) and second infusion pipes (112) on the same side are connected to the input end of the booster pump cabinet (113), and the first infusion pipes (111) and second infusion pipes (112) on the other side are connected to the output end of the booster pump cabinet (113). A first water tap (114) and a second water tap (115) are fixedly installed on the first infusion pipes (111) and the second infusion pipes (112), respectively.

3. A mine tunnel harmful gas purification device according to claim 2, characterized in that, The mine gas filtration equipment (104) is also equipped with a gas scrubbing cabinet (116). The primary gas filter cabinet (107) is fixedly installed with a secondary air inlet (117). One end of the secondary air inlet (117) is connected to the interior of the gas scrubbing cabinet (116). A water supply pipe (118) is fixedly installed on one side of the second liquid delivery pipe (112). The water supply pipe (118) located at the same place is connected to the interior of the gas scrubbing cabinet (116). Drainage ditches (120) are opened on both sides of the bottom of the mine tunnel main structure (101). Multiple evenly distributed drainage grids (121) are placed on the top of the drainage ditches (120). A mud discharge valve (119) corresponding to the position of the drainage ditch (120) is set at the bottom of the gas scrubbing cabinet (116).

4. The mine harmful gas purification device according to claim 2, characterized by The mine gas purification vehicle (2) includes a vehicle body (201) placed inside the main structure (101) of the mine tunnel. A transport frame (202) is fixedly installed on one side of the vehicle body (201). A roof (203) is fixedly installed on the top of the vehicle body (201). A fog cannon (204) is driven and installed on the top of the roof (203). A first liquid storage tank (205) and a second liquid storage tank (206) are fixedly installed on the top of the transport frame (202). The input end of the fog cannon (204) is connected to the first liquid storage tank (205) and the second liquid storage tank (206). The output ends of the first liquid storage tank (205) and the second liquid storage tank (206) are connected. A docking faucet (207) connected to the first water supply faucet (114) and the second water supply faucet (115) is fixedly installed on one side of each tank. A blower (208) is fixedly installed at the bottom of the transport frame (202). A guide plate (209) is fixedly installed on both sides of the blower (208). One end of the guide plate (209) is connected to the output end of the blower (208), and the other end of the guide plate (209) faces the bottom of the main structure (101) of the mine tunnel.

5. A mine tunnel harmful gas purification device according to claim 3, characterized in that, The mine gas filtration device (104) is also equipped with a secondary gas filter cabinet (122). The secondary gas filter cabinet (122) is located on top of the gas washing cabinet (116) and is connected to the interior of the gas washing cabinet (116). The gas outlet pipe (106) is connected to the interior of the second liquid delivery pipe (112). The interior of the secondary gas filter cabinet (122) contains multiple composite activated carbon mesh plates (123) evenly distributed from top to bottom.

6. A mine tunnel harmful gas purification device according to claim 4, characterized in that, A suction tank (210) is fixedly installed on the top of the transport frame (202), and a suction pipe head (211) is fixedly installed on one side of the suction tank (210).

7. A mine tunnel harmful gas purification device according to claim 6, characterized in that, The suction tank (210) is fixedly installed with a transport cabinet (212) on both sides of its top.

8. A mine tunnel harmful gas purification device according to claim 1, characterized in that, An intercepting frame (124) is fixedly installed inside the air intake (110), and multiple evenly distributed unidirectional films (125) are rotatably installed on the side of the intercepting frame (124) facing the ventilation duct (102).

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