CN112588095A - Application method of device for treating hydrogen sulfide gas in coal body of coal face - Google Patents
Application method of device for treating hydrogen sulfide gas in coal body of coal face Download PDFInfo
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- B01D53/34—Chemical or biological purification of waste gases
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Abstract
A method for using a device for treating hydrogen sulfide gas in coal bodies of a working face belongs to the field of mine safety production, and is suitable for the treatment work of associated harmful gas in the mine production process. In the coal mining process, the hydrogen sulfide gas adsorbed in coal gaps due to coal geological occurrence reasons is directly released due to factors such as mining, the hydrogen sulfide is flammable and has extremely high toxicity, and the concentration exceeds 10 mg-
The invention is characterized in that alkaline water mist is utilized to neutralize and treat coal mine underground hydrogen sulfide, and in the process, the concentration of the alkaline water mist and fluid generated by a hydrogen sulfide detection device according to the concentration of the alkaline water mist are detected by the hydrogen sulfide detection deviceThe gas form of the impact density wave is automatically adjusted, and the concentration of the hydrogen sulfide under the coal mine is ensured to meet the national standard. By automatic control of intelligent equipment, the cost is saved, and meanwhile, the underground hydrogen sulfide gas in the coal mine is efficiently treated.
Description
Technical Field
The invention discloses a use method of a device for treating hydrogen sulfide gas in coal bodies of a working face, belongs to the field of mine safety production, and is suitable for the treatment work of associated harmful gas in the mine production process.
Background
In the coal mining process, the hydrogen sulfide gas adsorbed in coal gaps due to coal geological occurrence reasons is directly released due to factors such as mining, the hydrogen sulfide is flammable and has extremely high toxicity, and the concentration exceeds 10 mg-
The health of coal mine workers can be threatened in time, and the life is threatened in serious cases. The hydrogen sulfide can not only paralyze the smell of the human, influence the central nerve of the human and cause casualties, but also has very high chemical activity, is easy to corrode instruments and equipment and reduces the service life of the instruments and the equipment. How to treat hydrogen sulfide gas is always a key and difficult problem of safe operation in coal mine.
Although the hydrogen sulfide is extremely harmful, the relative density of the hydrogen sulfide is lower than that of air, and the hydrogen sulfide is very easy to dissolve in water to form a hydrogen-sulfuric acid solution, so that the hydrogen sulfide gas generated in the mining process is treated by means of strengthening ventilation, spraying water mist, neutralizing lime powder and the like. However, the above means are not efficient in practical operation. Because hydrogen sulfide is an acid gas, a new treatment idea is that an alkaline gas can be utilized for neutralization reaction, so that the aim of high-efficiency treatment is fulfilled.
As patents, the title of the invention is a method for treating hydrogen sulfide in oil wells, application No.: 201710149121.6, a method for treating hydrogen sulfide in an oil well is provided, comprising the steps of: (1) a hydrogen sulfide treatment process pipe column is arranged; (2) washing the well with sodium hydroxide solution, and then washing the well with water; (3) using water to try squeezing, and solving the water absorption index under 18 MPa; (4) squeezing sulfate reducing bacteria inhibitor solution, and injecting water for replacement; the treatment radius of the oil well is 2-4 m; (5) extruding and injecting tetrakis (hydroxymethyl) phosphonium sulfate (THPS) bactericide solution, and injecting water for replacement; (6) the well is closed and reacts for 10 days, and the well is opened to produce normally. Although the method can effectively treat the hydrogen sulfide, the treatment cost is increased by using the sulfate reducing bacteria inhibitor, and the normal production work is influenced because the well needs to be shut down to wait for the completion of the reaction;
as patents, the invention name-advanced alkali injection process and alkali liquor formula for tunneling high-hydrogen sulfide coal seam roadway, application number: 201510095707.X, relating to a hydrogen sulfide treatment process during tunneling of a high-hydrogen sulfide coal seam, wherein the problem of excessive hydrogen sulfide during tunneling of the coal seam is treated through a coal seam pre-alkali injection process, and the alkali liquor formula comprises 1% of sodium carbonate, 0.1% of sodium dodecyl benzene sulfonate and 0.1% of sodium hypochlorite. The advanced alkali injection process adopted by the scheme can ensure that a certain distance of safety curtain wetted by alkali liquor is formed around the driving roadway, and the emission amount of hydrogen sulfide during driving is reduced.
Therefore, at present, a high-efficiency and reliable hydrogen sulfide treatment device is urgently needed, production activities are not influenced while hydrogen sulfide emission is treated, and safe and high-efficiency work of a coal mine is guaranteed.
Disclosure of Invention
The invention discloses a using method of a device for treating hydrogen sulfide gas in a working face coal body, which aims to utilize alkaline aerosol fluid to quickly neutralize the hydrogen sulfide gas, overcome the defects in the prior art through automatic control of intelligent equipment, efficiently treat the hydrogen sulfide gas in a coal mine while saving cost, and provide the device for treating the hydrogen sulfide gas in the working face coal body, which is simple in structure, convenient to operate, reliable and dynamic in alkaline gas.
The invention relates to a device for treating hydrogen sulfide gas in coal body of working face, which is characterized in that a device which takes a hydrogen sulfide treatment unit and a hydrogen sulfide surge drainage port unit as core composition structures collects the hydrogen sulfide gas in the coal body by a device for detecting hydrogen sulfide and detects the concentration, and adjusts the concentration of alkaline aerosol fluid generated by the hydrogen sulfide treatment unit by taking the concentration as a reference, so that the alkaline aerosol fluid and the hydrogen sulfide gas in the coal body are quickly neutralized, thereby realizing the device for treating the hydrogen sulfide gas by gas with high efficiency, and the device comprises an equipment vehicle 1, a hydrogen sulfide surge drainage port detection device 2, a gas-water pretreatment device 3, an alkaline liquid online adder 4, an intelligent adjusting valve 5, a gas-water quick connecting hose 6, a jet generation diffusion accelerator 7, a hydrogen sulfide treatment multifunctional hole 8, an alkaline aerosol fluid 9, a control circuit 10, a hydrogen sulfide lead-out detection hole 11, The pressure water 12 and the pressure gas 13 used by the device enter the gas-water pretreatment device 3 through the gas-water quick connection hose 6 respectively, the gas-water pretreatment device 3 cleans and adjusts the impurities and the pressure in the water and the gas, wherein the pressure water is connected with an alkaline liquid online adding device 4 through a gas-water quick connection hose 6 to realize the online addition of the alkaline liquid, the working concentration of the pressure water-soluble alkaline liquid is 5-35%, the gas-water pretreatment device 3 and the alkaline liquid online adder 4 are arranged on the equipment vehicle 1, the intelligent regulating valve is connected with an intelligent regulating valve 5 through an air-water quick connecting hose 6, the intelligent regulating valve is connected with a jet flow generation diffusion accelerator 7 through the air-water quick connecting hose 6, the intelligent regulating valve is also connected with a hydrogen sulfide burst drainage port detection device 2 through the air-water quick connecting hose 6, and hydrogen sulfide gas led out from the hydrogen sulfide burst drainage port is directly neutralized with alkaline liquid; wherein gas water pretreatment device 3 connects hose 6 lug connection in efflux generation diffusion accelerator 7 again through air water soon after with pressure gas preliminary treatment, efflux generation diffusion accelerator 7 generates the alkaline aerial fog fluid 9 with the gaseous form of impact density wave as the characteristic, hydrogen sulfide gushes out drainage mouth detection device 2 and arranges in hydrogen sulfide drainage inspection hole 11, be connected with intelligent regulation valve 5 through control scheme 10, control intelligent regulation valve 5's opening degree, efflux generation diffusion accelerator 7 arranges in hydrogen sulfide administers multi-functional hole 8, produces alkaline aerial fog fluid 9.
The use method of the device for treating the hydrogen sulfide gas in the coal body of the working face is characterized by comprising the following steps:
i, arranging punching positions in the region needing to treat the hydrogen sulfide in the coal body at a distance of 1500-2000mm from the top and at a distance of 1500-2000mm from the bottom plate in the auxiliary roadway along the recovery direction of the working surface at intervals of 10-15 m, and punching, wherein the hole diameter is 100-150mm, and the hole length is 160-180 m; and as hydrogen sulfide treatment multifunctional holes 8, every two hydrogen sulfide treatment multifunctional holes 8 form a group, and jet flow generation diffusion accelerators 7 are respectively arranged in the hydrogen sulfide treatment multifunctional holes. Then, punching a position, which is 2-10 m away from one side of the hydrogen sulfide treatment multifunctional hole 8 away from the goaf, wherein the depth of the position is consistent with that of the hydrogen sulfide treatment multifunctional hole 8, 60-100 mm is taken as the aperture of a hydrogen sulfide drainage detection hole 11, and the hydrogen sulfide gush-out drainage port detection device 2 is arranged in the position;
II, the equipment vehicle 1 stops at an area needing to treat the hydrogen sulfide, and pressure air with the working pressure of 0.3-0.8MPa and pressure water with the working pressure of 0.2-0.5MPa which are needed to be used by the device are introduced into the gas-water pretreatment device 3 through the gas-water quick connection hose 6;
III, adding alkali liquor into the air-water quick-connection hose 6 through an alkaline liquid online adder 4, wherein the alkaline matters are as follows: na2CO3, NaHCO3 or Ca (OH)2, so that the working concentration of the pressure water-soluble alkaline liquid is 5-35%;
opening a jet flow generation diffusion accelerator 7, spraying alkaline aerosol fluid 9 into the hydrogen sulfide treatment multifunctional hole 8, wherein the volume ratio of pressure gas generated by the jet flow generation diffusion accelerator to pressure water-soluble alkaline liquid is 100: 3- - -100: 0.1 of alkaline aerial fog, alkaline aerial fog fluid 9 is in the form of impact density wave gas, flow and spread in the fracture in the coal body in the multi-functional hole 8 of hydrogen sulfide treatment, take place the neutralization reaction with hydrogen sulfide gas molecule absorbed in the fracture of coal body, make the hydrogen sulfide existing in the coal body can be neutralized to the maximum extent through this way of treating gas with gas, the hydrogen sulfide gas of free state is treated in the exploitation like this, achieve the goal of preconditioning hydrogen sulfide, when the working face is exploited the coal, the hydrogen sulfide is treated the pressure and will be greatly reduced;
and V, opening the hydrogen sulfide gushing and draining port detection device 2, adjusting the opening degree of the intelligent adjusting valve 5 by detecting the concentration of the hydrogen sulfide, and controlling the concentration of the alkaline aerosol fluid 9 and the gas form of fluid impact density waves so as to treat the hydrogen sulfide gas in an optimal mode.
The invention relates to a use method of a device for treating hydrogen sulfide gas in coal body of a working face, which is characterized in that the device takes a hydrogen sulfide treatment unit and a hydrogen sulfide inrush drainage outlet unit as core composition structures, collects the hydrogen sulfide gas in the coal body through a device for detecting the hydrogen sulfide and detects the concentration, and adjusts the concentration of alkaline aerosol fluid generated by the hydrogen sulfide treatment unit by taking the concentration as a reference, so that the alkaline aerosol fluid and the hydrogen sulfide gas in the coal body are quickly neutralized, thereby realizing automation and high efficiency 'gas treatment' and treating the hydrogen sulfide gas. The device utilizes alkaline water smoke to carry out neutralization treatment to colliery underground hydrogen sulfide, the in-process carries out automatically regulated according to the alkaline water smoke concentration that its concentration produced the device through hydrogen sulfide detection device, guarantee that colliery underground hydrogen sulfide concentration accords with national standard, its theory of operation utilizes the alkaline aerial fog fluid that generates, through "managing gas with gas" mode, the hydrogen sulfide gas that appears in the quick neutralization coal, still can gush out through hydrogen sulfide and detect drainage mouth hydrogen sulfide treatment effect real time control alkaline aerial fog fluid's concentration and pneumatic characteristics, control neutralization effect, guarantee that hydrogen sulfide gas gushes out concentration up to standard. The invention uses alkaline aerosol fluid to quickly neutralize hydrogen sulfide gas in coal, the core components of the invention are hydrogen sulfide treatment unit and hydrogen sulfide gushing drainage port detection device, the detection device collects hydrogen sulfide gas from coal and detects the concentration, and adjusts the concentration of alkaline aerosol fluid generated by the hydrogen sulfide treatment unit based on the concentration, thereby achieving the purpose of automatically and efficiently treating hydrogen sulfide gas, overcoming the defects that the common treatment means needs special persons and has low treatment efficiency, and ensuring the safe operation of underground coal mine and the physical and mental health of coal mine workers.
Drawings
FIG. 1 is a schematic view of a device for treating hydrogen sulfide gas in coal body of working face
The device comprises an equipment vehicle 1, a hydrogen sulfide gushing drainage port detection device 2, a gas-water pretreatment device 3, an alkaline liquid online adding device 4, an intelligent adjusting valve 5, a gas-water quick connection hose 6, a jet flow generation diffusion accelerator 7, a hydrogen sulfide treatment multifunctional hole 8, an alkaline aerosol fluid 9, a control circuit 10, pressure water 12 and pressure gas 13.
Detailed description of the preferred embodiment 1
The device for treating the hydrogen sulfide gas in the coal body of the working face utilizes alkaline water mist to neutralize and treat the underground hydrogen sulfide of a coal mine, and the concentration of the alkaline water mist generated by the device is automatically adjusted by a hydrogen sulfide detection device according to the concentration of the alkaline water mist in the process, so that the concentration of the underground hydrogen sulfide of the coal mine is ensured to meet the national standard. Pressure water 12 and pressure gas 13 used by the device respectively enter a gas-water pretreatment device 3 through a gas-water quick connection hose 6, the gas-water pretreatment device 3 cleans and adjusts impurities and pressure in water and gas, wherein the pressure water is connected with an alkaline liquid online adder 4 through the gas-water quick connection hose 6 to realize online addition of alkaline liquid, the gas-water pretreatment device 3 and the alkaline liquid online adder 4 are arranged on an equipment vehicle 1 and are connected with an intelligent adjusting valve 5 through the gas-water quick connection hose 6, the intelligent adjusting valve is connected with a jet flow generation diffusion accelerator 7 through the gas-water quick connection hose 6, the intelligent adjusting valve is also connected with a hydrogen sulfide outflow drainage port detection device 2 through the gas-water quick connection hose 6 to directly neutralize hydrogen sulfide gas led out from the hydrogen sulfide outflow drainage port with the alkaline liquid; wherein the gas-water pretreatment device 3 is directly connected with the jet flow generation diffusion accelerator 7 through the gas-water quick connection hose 6 after the pressure gas is pretreated, and the jet flow generation diffusion accelerator 7 generates the alkaline gas fog fluid 9 which is characterized by the gas form of the impact density wave. The hydrogen sulfide gushes out drainage mouth detection device 2 and arranges in hydrogen sulfide drainage inspection hole 11, is connected with intelligent regulation valve 5 through control scheme 10, controls intelligent regulation valve 5's opening degree, and efflux generation diffusion accelerator 7 arranges in hydrogen sulfide administers multi-functional hole 8, produces alkaline aerial fog fluid 9.
The application method of the device for treating the hydrogen sulfide gas in the coal body of the working face comprises the following steps:
i, arranging punching positions in a coal body in an area needing to treat hydrogen sulfide, which is 1800mm away from the top and 1800mm away from a bottom plate, in an auxiliary roadway along the mining direction of a working face at intervals of 13m, and punching, wherein the hole diameter is 130mm, and the hole length is 170 m; and as hydrogen sulfide treatment multifunctional holes 8, every two hydrogen sulfide treatment multifunctional holes 8 form a group, and jet flow generation diffusion accelerators 7 are respectively arranged in the hydrogen sulfide treatment multifunctional holes. Then, punching a position 5m away from one side of the hydrogen sulfide treatment multifunctional hole 8, wherein the depth is consistent with that of the hydrogen sulfide treatment multifunctional hole 8, the aperture is 50mm, the hole is used as a hydrogen sulfide drainage detection hole 11, and the hydrogen sulfide gushing drainage port detection device 2 is arranged in the hole;
II, the equipment vehicle 1 stops at an area needing to treat the hydrogen sulfide, and pressure air with the working pressure of 0.6MPa and pressure water with the working pressure of 0.3MPa which are needed by the device are introduced into the gas-water pretreatment device 3 through the gas-water quick connection hose 6;
III, adding alkali liquor into the air-water quick-connection hose 6 through an alkaline liquid online adder 4, wherein the alkaline matters are as follows: NaHCO 3;
opening a jet flow generation diffusion accelerator 7, spraying alkaline aerosol fluid 9 into the hydrogen sulfide treatment multifunctional hole 8, wherein the volume ratio of pressure gas generated by the jet flow generation diffusion accelerator to pressure water-soluble alkaline liquid is 100: 2, alkaline gas fog fluid 9 flows in the hydrogen sulfide treatment multifunctional hole 8 in the form of impact density wave gas and is diffused into fractures in the coal body to generate neutralization reaction with hydrogen sulfide gas molecules adsorbed in the fractures of the coal body, and the hydrogen sulfide existing in the coal body can be neutralized to the maximum extent by the gas treatment mode, so that the free hydrogen sulfide gas in exploitation is treated to achieve the purpose of pretreating the hydrogen sulfide, and the treatment pressure of the hydrogen sulfide is greatly reduced when coal is exploited on a working face;
and V, opening the hydrogen sulfide gushing and draining port detection device 2, adjusting the opening degree of the intelligent adjusting valve 5 by detecting the concentration of the hydrogen sulfide, and controlling the concentration of the alkaline aerosol fluid 9 and the gas form of fluid impact density waves so as to treat the hydrogen sulfide gas in an optimal mode.
Detailed description of the preferred embodiment 2
The device for treating the hydrogen sulfide gas in the coal body of the working face utilizes alkaline water mist to neutralize and treat the underground hydrogen sulfide of a coal mine, and the concentration of the alkaline water mist generated by the device is automatically adjusted by a hydrogen sulfide detection device according to the concentration of the alkaline water mist in the process, so that the concentration of the underground hydrogen sulfide of the coal mine is ensured to meet the national standard. Pressure water 12 and pressure gas 13 used by the device respectively enter a gas-water pretreatment device 3 through a gas-water quick connection hose 6, the gas-water pretreatment device 3 cleans and adjusts impurities and pressure in water and gas, wherein the pressure water is connected with an alkaline liquid online adder 4 through the gas-water quick connection hose 6 to realize online addition of alkaline liquid, the gas-water pretreatment device 3 and the alkaline liquid online adder 4 are arranged on an equipment vehicle 1 and are connected with an intelligent adjusting valve 5 through the gas-water quick connection hose 6, the intelligent adjusting valve is connected with a jet flow generation diffusion accelerator 7 through the gas-water quick connection hose 6, the intelligent adjusting valve is also connected with a hydrogen sulfide outflow drainage port detection device 2 through the gas-water quick connection hose 6 to directly neutralize hydrogen sulfide gas led out from the hydrogen sulfide outflow drainage port with the alkaline liquid; wherein the gas-water pretreatment device 3 is directly connected with the jet flow generation diffusion accelerator 7 through the gas-water quick connection hose 6 after the pressure gas is pretreated, and the jet flow generation diffusion accelerator 7 generates the alkaline gas fog fluid 9 which is characterized by the gas form of the impact density wave. The hydrogen sulfide gushes out drainage mouth detection device 2 and arranges in hydrogen sulfide drainage inspection hole 11, is connected with intelligent regulation valve 5 through control scheme 10, controls intelligent regulation valve 5's opening degree, and efflux generation diffusion accelerator 7 arranges in hydrogen sulfide administers multi-functional hole 8, produces alkaline aerial fog fluid 9.
The application method of the device for treating the hydrogen sulfide gas in the coal body of the working face comprises the following steps:
i, arranging punching positions in an area needing to treat hydrogen sulfide in the middle of a coal body at a distance of 2000mm from the top and 2000mm from a bottom plate at intervals of 15m in a secondary roadway along a working face extraction direction, and punching, wherein the hole diameter is 150mm, and the hole length is 180 m; and as hydrogen sulfide treatment multifunctional holes 8, every two hydrogen sulfide treatment multifunctional holes 8 form a group, and jet flow generation diffusion accelerators 7 are respectively arranged in the hydrogen sulfide treatment multifunctional holes. Then, punching a position 10m away from one side of the hydrogen sulfide treatment multifunctional hole 8, wherein the depth of the hole is consistent with that of the hydrogen sulfide treatment multifunctional hole 8, the aperture of the hole is 100mm, the hole is used as a hydrogen sulfide drainage detection hole 11, and the hydrogen sulfide gushing-out drainage port detection device 2 is arranged in the hole;
II, the equipment vehicle 1 stops at an area needing to treat the hydrogen sulfide, and pressure air with the working pressure of 0.8MPa and pressure water with the working pressure of 0.5MPa which are needed by the device are introduced into the gas-water pretreatment device 3 through a gas-water quick connection hose 6;
III, adding alkali liquor into the air-water quick-connection hose 6 through an alkaline liquid online adder 4, wherein the alkaline matters are as follows: ca (OH) 2;
opening a jet flow generation diffusion accelerator 7, spraying alkaline aerosol fluid 9 into the hydrogen sulfide treatment multifunctional hole 8, wherein the volume ratio of pressure gas generated by the jet flow generation diffusion accelerator to pressure water-soluble alkaline liquid is 100: 0.1 of alkaline aerial fog, alkaline aerial fog fluid 9 is in the form of impact density wave gas, flow and spread in the fracture in the coal body in the multi-functional hole 8 of hydrogen sulfide treatment, take place the neutralization reaction with hydrogen sulfide gas molecule absorbed in the fracture of coal body, make the hydrogen sulfide existing in the coal body can be neutralized to the maximum extent through this way of treating gas with gas, the hydrogen sulfide gas of free state is treated in the exploitation like this, achieve the goal of preconditioning hydrogen sulfide, when the working face is exploited the coal, the hydrogen sulfide is treated the pressure and will be greatly reduced;
and V, opening the hydrogen sulfide gushing and draining port detection device 2, adjusting the opening degree of the intelligent adjusting valve 5 by detecting the concentration of the hydrogen sulfide, and controlling the concentration of the alkaline aerosol fluid 9 and the gas form of fluid impact density waves so as to treat the hydrogen sulfide gas in an optimal mode.
Detailed description of preferred embodiments 3
The device for treating the hydrogen sulfide gas in the coal body of the working face utilizes alkaline water mist to neutralize and treat the underground hydrogen sulfide of a coal mine, and the concentration of the alkaline water mist generated by the device is automatically adjusted by a hydrogen sulfide detection device according to the concentration of the alkaline water mist in the process, so that the concentration of the underground hydrogen sulfide of the coal mine is ensured to meet the national standard. The device consists of an equipment vehicle 1, a hydrogen sulfide burst drainage port detection device 2, a gas-water pretreatment device 3, an alkaline liquid online adder 4, an intelligent regulating valve 5, a gas-water quick connection hose 6, a jet flow generation diffusion accelerator 7, a hydrogen sulfide treatment multifunctional hole 8, an alkaline aerosol fluid 9, a control circuit 10, a hydrogen sulfide discharge detection hole 11, pressure water 12 and pressure gas 13, wherein the pressure water 12 and the pressure gas 13 used by the device respectively enter the gas-water pretreatment device 3 through the gas-water quick connection hose 6, the gas-water pretreatment device 3 cleans and regulates impurities and pressure in water and gas, the pressure water is connected with the alkaline liquid online adder 4 through the gas-water quick connection hose 6 to realize online addition of the alkaline liquid, the gas-water pretreatment device 3 and the alkaline liquid online adder 4 are arranged on the equipment vehicle 1 and are connected with the intelligent regulating valve 5 through the gas-water quick connection hose 6, the intelligent regulating valve is connected with a jet flow generation diffusion accelerator 7 through an air-water quick connection hose 6, and the hydrogen sulfide gas led out from the hydrogen sulfide burst drainage port is directly neutralized with alkaline liquid; wherein the gas-water pretreatment device 3 is directly connected with the jet flow generation diffusion accelerator 7 through the gas-water quick connection hose 6 after the pressure gas is pretreated, and the jet flow generation diffusion accelerator 7 generates the alkaline gas fog fluid 9 which is characterized by the gas form of the impact density wave. The hydrogen sulfide gushes out drainage mouth detection device 2 and arranges in hydrogen sulfide drainage inspection hole 11, is connected with intelligent regulation valve 5 through control scheme 10, controls intelligent regulation valve 5's opening degree, and efflux generation diffusion accelerator 7 arranges in hydrogen sulfide administers multi-functional hole 8, produces alkaline aerial fog fluid 9.
The application method of the device for treating the hydrogen sulfide gas in the coal body of the working face comprises the following steps:
i, arranging punching positions in an area needing to treat hydrogen sulfide in the middle of a coal body 1500 mm away from the top and 1500 mm away from a bottom plate at intervals of 10m in a secondary roadway along a working face extraction direction, and punching, wherein the hole diameter is 100m, and the hole length is 160 m; and as hydrogen sulfide treatment multifunctional holes 8, every two hydrogen sulfide treatment multifunctional holes 8 form a group, and jet flow generation diffusion accelerators 7 are respectively arranged in the hydrogen sulfide treatment multifunctional holes. Then, punching a position which is 2m away from one side of the hydrogen sulfide treatment multifunctional hole 8, wherein the depth of the hole is consistent with that of the hydrogen sulfide treatment multifunctional hole 8, the aperture of the hole is 10mm, the hole is used as a hydrogen sulfide drainage detection hole 11, and the hydrogen sulfide gushing drainage port detection device 2 is arranged in the hole;
II, the equipment vehicle 1 stops at an area needing to treat the hydrogen sulfide, and pressure air with the working pressure of 0.3MPa and pressure water with the working pressure of 0.2MPa which are needed by the device are introduced into the gas-water pretreatment device 3 through a gas-water quick connection hose 6;
III, adding alkali liquor into the air-water quick-connection hose 6 through an alkaline liquid online adder 4, wherein the alkaline matters are as follows: na2CO 3;
opening a jet flow generation diffusion accelerator 7, spraying alkaline aerosol fluid 9 into the hydrogen sulfide treatment multifunctional hole 8, wherein the volume ratio of pressure gas generated by the jet flow generation diffusion accelerator to pressure water-soluble alkaline liquid is 100: 3, alkaline gas fog fluid 9 flows in the hydrogen sulfide treatment multifunctional hole 8 in the form of impact density wave gas and is diffused into fractures in the coal body to generate neutralization reaction with hydrogen sulfide gas molecules adsorbed in the fractures of the coal body, and the hydrogen sulfide existing in the coal body can be neutralized to the maximum extent by the gas treatment mode, so that the free hydrogen sulfide gas in exploitation is treated to achieve the purpose of pretreating the hydrogen sulfide, and the treatment pressure of the hydrogen sulfide is greatly reduced when coal is exploited on a working face;
and V, opening the hydrogen sulfide gushing and draining port detection device 2, adjusting the opening degree of the intelligent adjusting valve 5 by detecting the concentration of the hydrogen sulfide, and controlling the concentration of the alkaline aerosol fluid 9 and the gas form of fluid impact density waves so as to treat the hydrogen sulfide gas in an optimal mode.
Claims (1)
1. An application method of a device for treating hydrogen sulfide gas in coal bodies of a working face is characterized in that:
i, arranging punching positions in the region needing to treat the hydrogen sulfide in the coal body at a distance of 1500-2000mm from the top and at a distance of 1500-2000mm from the bottom plate in the auxiliary roadway along the recovery direction of the working surface at intervals of 10-15 m, and punching, wherein the hole diameter is 100-150mm, and the hole length is 160-180 m; the hole is used as a hydrogen sulfide treatment multifunctional hole (8), then every two hydrogen sulfide treatment multifunctional holes (8) are in a group, jet flow generation diffusion accelerators (7) are respectively arranged in the holes, then, holes are drilled at the positions, which are 2m-10m away from one side of a goaf, of the hydrogen sulfide treatment multifunctional hole (8), the depth of the holes is consistent with that of the hydrogen sulfide treatment multifunctional hole (8), 60mm-100mm is used as the aperture of a hydrogen sulfide drainage detection hole (11), and a detection device (2) for opening a hydrogen sulfide emission drainage port is arranged in the holes;
II, the equipment vehicle 1 stops at an area needing to treat the hydrogen sulfide, and pressure air with the working pressure of 0.3-0.8MPa and pressure water with the working pressure of 0.2-0.5MPa which are needed to be used by the device are introduced into the gas-water pretreatment device (3) through a gas-water quick connection hose (6);
III, adding alkali liquor into the gas-water quick-connection hose (6) through an alkaline liquid online adder (4), wherein the alkaline matters are as follows: na2CO3, NaHCO3 or Ca (OH)2, so that the working concentration of the pressure water-soluble alkaline liquid is 5-35%;
opening a jet flow generation diffusion accelerator (7), and spraying alkaline aerosol fluid (9) into the hydrogen sulfide treatment multifunctional hole (8), wherein the jet flow generation diffusion accelerator can generate a pressure gas and pressure water-soluble alkaline liquid with the volume ratio of 100: 3- - -100: 0.1 of alkaline aerial fog, alkaline aerial fog fluid (9) is in the form of impact density wave gas, flow in the hydrogen sulfide treatment multifunctional hole (8) and spread to the fissures in the coal body, and generate neutralization reaction with hydrogen sulfide gas molecules absorbed in the fissures of the coal body, through the gas treatment method, the hydrogen sulfide existing in the coal body can be neutralized to the maximum extent, so that the free hydrogen sulfide gas in exploitation is treated, the purpose of pretreating the hydrogen sulfide is achieved, and when coal is exploited on a working face, the treatment pressure of the hydrogen sulfide is greatly reduced;
and V, opening the hydrogen sulfide gushing-out drainage port detection device (2), adjusting the opening degree of the intelligent adjusting valve (5) by detecting the concentration of the hydrogen sulfide, and controlling the concentration of the alkaline aerosol fluid (9) and the gas form of the fluid impact density wave so as to treat the hydrogen sulfide gas in an optimal mode.
Priority Applications (1)
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