Underground coal mine hydrogen sulfide gas treatment device

Abstract

The utility model discloses an underground coal mine hydrogen sulfide gas treatment device which comprises a detection assembly, an absorption liquid supply assembly and a spraying water injection assembly. Absorption liquid is contained in the absorption liquid supply assembly; the spraying and water injection assembly comprises a high-pressure outer sprayer and a sectional type water injection hole packer. The output end of the high-pressure outer sprayer is connected with a detection assembly, and the input end of the high-pressure outer sprayer is connected with the first output end of the absorption liquid supply assembly; the output end of the sectional type water injection hole packer is connected with a detection assembly, and the input end of the sectional type water injection hole packer is connected with the second output end of the absorption liquid supply assembly; the detection assembly is configured to detect the concentration of hydrogen sulfide in the heading head coal body. The problems that in the prior art, in coal mining, a coal body contains hydrogen sulfide with extremely high toxicity, and the hydrogen sulfide is prone to hurting a human body are solved; the technical effect of effectively treating the hydrogen sulfide gas contained in the coal body is achieved, and the reliability and stability of hydrogen sulfide gas treatment are improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of coal mine equipment, and in particular to a hydrogen sulfide gas treatment device for underground coal mines. BACKGROUND

[0002] Coal production has been one of the important pillar industries in China. In order to better meet the demand of social production for coal, the depth and breadth of coal mining will continue to expand. At the same time, perfect occupational hazard prevention measures are also indispensable in coal production. Dust hazard accounts for the largest proportion in occupational hazards, and the data from the National Health Commission shows that, by the end of 2021, there were more than 915,000 cases of occupational diseases reported in China, of which nearly half were coal worker's pneumoconiosis. The problem of hydrogen sulfide, which belongs to the same category as dust in coal mine occupational hazards, cannot be ignored. Hydrogen sulfide in coal seams is extremely toxic, and it is difficult to find its occurrence regularity due to its high activity and unstable form, making prevention and control difficult.

[0003] At present, the domestic and foreign hydrogen sulfide treatment of coal mines mainly uses methods such as coal seam alkali injection, alkali spraying and ventilation. Hydrogen sulfide is one of the toxic and harmful gases in coal mines, but the existence of hydrogen sulfide is far less common than methane. At present, most mines do not have hydrogen sulfide gas or have very low hydrogen sulfide content, which does not affect the safety production of the mine. Therefore, the depth and breadth of the prevention and control research on hydrogen sulfide are far less than those on methane, and there is little research on its generation conditions, occurrence state, emission regularity, prediction and treatment methods. CONTENT OF THE INVENTION

[0004] The embodiment of the application provides a hydrogen sulfide gas treatment device for underground coal mines, which solves the problem that the existing technology contains extremely toxic hydrogen sulfide in coal bodies in coal mining, which can easily cause harm to the human body, achieves the technical effect of effectively treating the hydrogen sulfide gas contained in the coal body, and improves the reliability and stability of hydrogen sulfide gas treatment.

[0005] The embodiment of the application provides a hydrogen sulfide gas treatment device for underground coal mines, which includes a detection assembly, an absorption liquid supply assembly and a spraying and water injection assembly. The absorption liquid supply assembly contains absorption liquid. The spraying and water injection assembly includes a high-pressure external sprayer and a sectional water injection hole sealing device. The output end of the high-pressure external sprayer is connected with the detection assembly, and the input end of the high-pressure external sprayer is connected with the first output end of the absorption liquid supply assembly. The output end of the sectional water injection hole sealing device is connected with the detection assembly, and the input end of the sectional water injection hole sealing device is connected with the second output end of the absorption liquid supply assembly. The detection assembly is configured to detect the concentration of hydrogen sulfide in the coal body of the heading head.

[0006] In a possible implementation, the absorption liquid supply assembly comprises a supply tank, a mixing tank, an alkali substance tank, a surfactant tank and a water tank; the water tank contains water, and an output end of the water tank is connected to an input end of the mixing tank; the alkali substance tank contains an alkali solvent, and an output end of the water tank is connected to an input end of the mixing tank; the surfactant tank contains an active agent, and the surfactant tank is connected to an input end of the mixing tank; an output end of the mixing tank is connected to an input end of the supply tank; a first output end of the supply tank is connected to an input end of the high-pressure external jetting device, and a second output end of the supply tank is connected to an input end of the sectional water injection packer.

[0007] In a possible implementation, the absorption liquid supply assembly further comprises a liquid supply pipe; the first output end of the supply tank is connected to the input end of the high-pressure external jetting device through the liquid supply pipe, and the second output end of the supply tank is connected to the input end of the sectional water injection packer through the liquid supply pipe.

[0008] In a possible implementation, the absorption liquid supply assembly is arranged on the trolley.

[0009] In a possible implementation, the absorption liquid supply assembly is arranged on the trolley.

[0010] In a possible implementation, the absorption liquid supply assembly is arranged on the trolley.

[0011] In a possible implementation, the absorption liquid supply assembly is arranged on the trolley.

[0012] In a possible implementation, the absorption liquid supply assembly is arranged on the trolley.

[0013] In a possible implementation, the absorption liquid supply assembly is arranged on the trolley.

[0014] One or more technical solutions provided in the present application have at least the following technical effects:

[0015] The utility model discloses an underground coal mine hydrogen sulfide gas treatment device, including detection subassembly, absorption liquid supply component and spray water injection component, absorption liquid supply component contains absorption liquid, spray water injection component includes high pressure outer spout ware and sectional type water injection hole packer, the output of high pressure outer spout ware is connected with detection subassembly, and the input of high pressure outer spout ware is connected with the first output of absorption liquid supply component, the output of sectional type water injection hole packer is connected with detection subassembly, and the input of sectional type water injection hole packer is connected with the second output of absorption liquid supply component, and detection subassembly is configured as detecting hydrogen sulfide concentration in the coal body of heading head, can detect hydrogen sulfide concentration in the coal body through detection device, when reaching certain concentration, absorption liquid in absorption liquid supply component is transported to the coal body through high pressure outer spout ware and sectional type water injection hole packer, and absorption liquid can absorb hydrogen sulfide in the coal body, thereby realizing the purpose of reducing hydrogen sulfide content in the coal body, and when the alkaline absorption liquid is not enough, through mixing tank, the mixing of cation Gemini surfactant and sodium carbonate can be carried out in real time, and the alkaline absorption liquid of liquid supply tank is supplemented in time. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will be briefly introduced the drawings needed to be used in the description of the utility model embodiment, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0017] Figure 1 It is a schematic diagram of the underground coal mine hydrogen sulfide gas treatment device provided by the embodiment of the application.

[0018] Figure 2 It is a schematic diagram of the absorption liquid supply component provided by the embodiment of the application.

[0019] Figure: 1-the coal body of heading head; 2-absorption liquid supply component; 21-supply tank; 22-mixing tank; 23-alkaline substance tank; 24-surfactant tank; 25-water tank; 26-liquid supply pipe; 3-spray water injection component; 31-high pressure outer spout ware; 32-sectional type water injection hole packer; 4-trolley; 5-full mechanized header; 6-dual-function water meter; 7-high pressure pump station. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0021] In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. The terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In addition, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For a person of ordinary skill in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0022] The embodiment of the present application provides a kind of coal mine underground hydrogen sulfide gas treatment device, as shown in Figure Figures 1-2 It includes detection component, absorption liquid supply component 2 and spray water injection component 3;Absorption liquid supply component 2 contains absorption liquid;Spray water injection component 3 includes high-pressure external sprayer 31 and sectional water injection hole sealing device 32;The output end of high-pressure external sprayer 31 is connected with detection component, and the input end of high-pressure external sprayer 31 is connected with the first output end of absorption liquid supply component 2;The output end of sectional water injection hole sealing device 32 is connected with detection component, and the input end of sectional water injection hole sealing device 32 is connected with the second output end of absorption liquid supply component 2;Detection component is configured to detect the concentration of hydrogen sulfide in the coal body 1 of heading head.

[0023] Exemplarily, detection component and high-pressure external sprayer 31 and sectional water injection hole sealing device 32 are provided with automatic control module;When hydrogen sulfide concentration sensor detects that the concentration of hydrogen sulfide in coal body exceeds preset threshold, automatic control module triggers high-pressure pump station 7 to start, and absorption liquid is transported to high-pressure external sprayer 31 or sectional water injection hole sealing device 32 through liquid supply pipe 26.

[0024] Exemplarily, the sectional water injection hole sealing device 32 comprises a plurality of independent water injection units, each of which is provided with an adjustable flow valve, and the injection pressure and flow of each section can be dynamically adjusted according to the crack distribution of the coal body, so as to realize the directional plugging and absorption of hydrogen sulfide gas.

[0025] Exemplarily, the high-pressure external sprayer 31 adopts an atomizing nozzle design, and the spraying coverage range is matched with the tunneling track of the shearer 5, so as to ensure that the absorption liquid uniformly penetrates into the newly exposed coal body surface and inhibits the diffusion of hydrogen sulfide.

[0026] In the embodiment of the present application, as shown in Figures 1-2 The absorption liquid supply assembly 2 comprises a supply tank 21, a mixing tank 22, an alkaline substance tank 23, a surfactant tank 24 and a water tank 25; the water tank 25 contains water, and the output end of the water tank 25 is connected with the input end of the mixing tank 22; the alkaline substance tank 23 contains an alkaline solvent, and the output end of the water tank 25 is connected with the input end of the mixing tank 22; the surfactant tank 24 contains an active agent, and the surfactant tank 24 is connected with the input end of the mixing tank 22; the output end of the mixing tank 22 is connected with the input end of the supply tank 21; the first output end of the supply tank 21 is connected with the input end of the high-pressure external sprayer 31, and the second output end of the supply tank 21 is connected with the input end of the sectional water injection hole sealing device 32.

[0027] Exemplarily, the mixing tank 22 is provided with a stirring device for mixing water, alkaline solvent and active agent in a predetermined ratio to form homogeneous absorption liquid; and a filtering device is arranged between the mixing tank 22 and the supply tank 21 for removing impurity particles in the absorption liquid.

[0028] Exemplarily, the output ends of the alkaline substance tank 23, the surfactant tank 24 and the water tank 25 are provided with pump valves and flow meters, so that the flow of various solvents input into the mixing tank 22 can be controlled through the pump valves and flow meters, thereby realizing the function of automatically preparing the absorption liquid.

[0029] In the embodiment of the present application, as shown in Figures 1-2 The absorption liquid supply assembly 2 further comprises a liquid supply pipe 26; the first output end of the supply tank 21 is connected with the input end of the high-pressure external sprayer 31 through the liquid supply pipe 26, and the second output end of the supply tank 21 is connected with the input end of the sectional water injection hole sealing device 32 through the liquid supply pipe 26.

[0030] In the embodiment of the present application, as shown in Figures 1-2 The embodiment of the present application further comprises a trolley 4; and the absorption liquid supply assembly 2 is arranged on the trolley 4.

[0031] Exemplarily, the trolley 4 is provided with an explosion-proof power supply and a moving track, and can advance synchronously with the tunneling progress of the shearer 5, and can be linked with the ground monitoring center through a wireless communication module to realize remote state monitoring and emergency intervention.

[0032] As shown in the embodiment of the present application, Figures 1-2 The high-pressure external sprayer 31 is connected with the fully-mechanized coal mining machine 5 at the end away from the coal body 1.

[0033] As shown in the embodiment of the present application, Figures 1-2 The embodiment of the present application further comprises a dual-function water meter 6 and a high-pressure pump station 7; the dual-function water meter 6 and the high-pressure pump station 7 are further arranged between the liquid supply pipe 26 and the sectional water injection hole packer 32.

[0034] For example, the dual-function water meter 6 integrates flow metering and pressure monitoring functions, and feeds the absorption liquid parameters in the liquid supply pipe 26 to the control system in real time, and adjusts the output power of the high-pressure pump station 7 according to the demand, to ensure the injection efficiency and system stability.

[0035] As shown in the embodiment of the present application, Figures 1-2 The output end of the high-pressure external sprayer 31 is provided with a hydrogen sulfide concentration sensor.

[0036] As shown in the embodiment of the present application, Figures 1-2 The output end of the sectional water injection hole packer 32 is provided with a hydrogen sulfide concentration sensor.

[0037] As shown in the embodiment of the present application, Figures 1-2 The alkaline solvent is sodium carbonate; and the active agent is a cationic Gemini surfactant.

[0038] For example, the concentration of the cationic Gemini surfactant is 0.5%-2%, which is mixed with the sodium carbonate solution at a volume ratio of 1:3 to form a composite absorption liquid with high reactivity and strong permeability, which significantly improves the hydrogen sulfide neutralization efficiency. The combination of cationic Gemini surfactant and sodium carbonate surfactant also has good antibacterial performance.

[0039] For example, when the hydrogen sulfide gas in the coal mine is treated, first, the absorption liquid supply assembly 2 is installed, then the absorption liquid supply assembly 2 is installed on the trolley 4, and then each liquid injection pipe is installed. Before the formal experiment, the sectional water injection hole packer 32 and the high-pressure external sprayer 31 are sprayed, and when the alkaline absorption liquid can be uniformly sprayed, the sectional water injection hole packer 32 is used to inject the absorption liquid into the coal head, and at the same time, the high-pressure external sprayer 31 is used to spray the absorption liquid, and the above two methods are combined, so that the hydrogen sulfide can be better treated.

[0040] Exemplarily, during the working process of the treatment device, only periodic manual checking is needed, and the accurate sensor display value is calibrated, so that semi-automation is realized, and the possibility of data error being too large, liquid supplementing not being in time caused by improper manual operation or observation error and manual laziness can be effectively avoided. The application can save manpower, improve treatment efficiency, and better detect the concentration of hydrogen sulfide.

[0041] Exemplarily, the shell of the treatment device adopts a stainless steel material.

[0042] Each embodiment in the specification is described in a progressive manner, and the same or similar parts between each embodiment can be referred to each other, and each embodiment mainly describes the difference from other embodiments.

[0043] The above examples are only used to illustrate the technical solutions of the application, and are not limited to the application; although the application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the application.

Claims

1. A coal mine underground hydrogen sulfide gas treatment device, characterized in that, The detection assembly, the absorbent liquid supply assembly (2) and the spray water injection assembly (3) are included. The absorbent liquid supply assembly (2) contains absorbent liquid. The spray water injection assembly (3) includes a high-pressure external sprayer (31) and a sectional water injection packer (32). The output end of the high-pressure external sprayer (31) is connected with the detection assembly, and the input end of the high-pressure external sprayer (31) is connected with the first output end of the absorbent liquid supply assembly (2). The output end of the sectional water injection packer (32) is connected with the detection assembly, and the input end of the sectional water injection packer (32) is connected with the second output end of the absorbent liquid supply assembly (2). The detection assembly is configured to detect the concentration of hydrogen sulfide in the coal body (1) of the heading head.

2. The coal mine underground hydrogen sulfide gas treatment device according to claim 1, characterized in that, The absorbent liquid supply assembly (2) includes a supply tank (21), a mixing tank (22), an alkaline substance tank (23), a surfactant tank (24) and a water tank (25). The water tank (25) contains water, and the output end of the water tank (25) is connected with the input end of the mixing tank (22). The alkaline substance tank (23) contains alkaline solvent, and the output end of the water tank (25) is connected with the input end of the mixing tank (22). The surfactant tank (24) contains active agent, and the surfactant tank (24) is connected with the input end of the mixing tank (22). The output end of the mixing tank (22) is connected with the input end of the supply tank (21). The first output end of the supply tank (21) is connected with the input end of the high-pressure external sprayer (31), and the second output end of the supply tank (21) is connected with the input end of the sectional water injection packer (32).

3. The coal mine underground hydrogen sulfide gas treatment device according to claim 2, characterized in that, The absorbent liquid supply assembly (2) further includes a liquid supply pipe (26). The first output end of the supply tank (21) is connected with the input end of the high-pressure external sprayer (31) through the liquid supply pipe (26), and the second output end of the supply tank (21) is connected with the input end of the sectional water injection packer (32) through the liquid supply pipe (26).

4. The coal mine underground hydrogen sulfide gas treatment device according to claim 1, characterized in that, A trolley (4) is further included. The absorbent liquid supply assembly (2) is arranged on the trolley (4).

5. The coal mine underground hydrogen sulfide gas treatment device according to claim 1, characterized in that, A fully-mechanized coal mining machine (5) is further included. The high-pressure external sprayer (31) is connected with the fully-mechanized coal mining machine (5) at the end away from the coal body (1) of the heading head.

6. The coal mine underground hydrogen sulfide gas treatment device according to claim 3, characterized in that, A dual-function water meter (6) and a high-pressure pump station (7) are further included. The dual-function water meter (6) and the high-pressure pump station (7) are arranged in sequence between the liquid supply pipe (26) and the sectional water injection packer (32).

7. The coal mine underground hydrogen sulfide gas treatment device according to claim 1, characterized in that, The detection assembly includes a hydrogen sulfide concentration sensor. The output end of the high-pressure external sprayer (31) is provided with the hydrogen sulfide concentration sensor.

8. The coal mine underground hydrogen sulfide gas treatment device according to claim 7, characterized in that, The output end of the sectional water injection packer (32) is provided with the hydrogen sulfide concentration sensor.

9. The coal mine underground hydrogen sulfide gas treatment device according to claim 2, characterized in that, The alkaline solvent is sodium carbonate. The active agent is a cationic Gemini surfactant.

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