A reaction box for coal mine gas treatment and a treatment method thereof

Abstract

The application discloses a reaction box for coal mine gas treatment and a treatment method thereof, and relates to the field of gas treatment tools, which comprises a treatment box, and further comprises: an adsorption mechanism arranged at both ends of the treatment box, and a reaction mechanism arranged in the interior of the treatment box. The device has the advantages that: directional negative pressure suction is formed through a manual air pump, local gas that cannot be covered by a large-scale extraction system can be flexibly treated, the upper reaction tooth blocks and the lower reaction tooth blocks alternately arranged in the air passage significantly prolong the gas flow path and improve the reaction efficiency; the reaction frame is convenient for replacing reaction tooth blocks of different materials according to the gas composition, or replacing the reaction tooth blocks conveniently after the reaction tooth blocks are invalid; the treatment box is convenient to carry and stably place, the shell is made of scratch-resistant and wear-resistant materials, and is suitable for harsh coal mine environment, so that the blind area of the existing large-scale extraction system is effectively made up, and the safety and convenience of local gas treatment in coal mines are improved.

Description

Technical Field

[0001] This invention relates to the field of gas control tools, specifically to a reaction chamber for coal mine gas control and its control method. Background Technology

[0002] Coal mine gas refers to a mixture of gases, mainly methane (CH4), found in coal seams and surrounding rocks. It is generated from the remains of ancient plants through long-term biochemical processes and often contains small amounts of ethane, propane, carbon dioxide, nitrogen, etc. It exists in two forms: free (in the pores and fissures of the coal body) and adsorbed (attached to the surface of the coal body). It is both the most important source of disaster in coal mines, capable of exploding when exposed to open flames and causing asphyxiation when in high concentrations, and a clean energy source that can be extracted and utilized (i.e., coalbed methane). Therefore, gas control and utilization is one of the core aspects of safe coal mine production.

[0003] In existing coal mines, most methane gas is extracted and treated by large-scale extraction systems. However, during the extraction process, these systems sometimes fail to cover corners and dead zones within the mine. There is a lack of effective equipment to treat these unextracted areas of methane gas. As the gas remains and accumulates over a long period, it can easily form large amounts of methane gas, leading to safety hazards within the coal mine. Summary of the Invention

[0004] The purpose of this invention is to provide a reaction box and treatment method for coal mine gas control, so as to solve the problem that there is no corresponding treatment device for gas in the corners of coal mines in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a reaction box for coal mine gas control, comprising a control box and further comprising: an adsorption mechanism disposed at both ends of the control box, the adsorption mechanism comprising an air inlet cylinder screwed onto one end of the control box, a duckbill tube screwed onto the air inlet cylinder, and a one-way valve body fixedly disposed inside the duckbill tube; an exhaust pipe screwed onto one end of the control box opposite to the air inlet cylinder, and a manual air pump screwed onto the exhaust pipe; and a reaction mechanism disposed inside the control box, the reaction mechanism comprising a reaction frame limited and engaged inside the control box, the reaction frame having a plurality of ventilation slots, and the plurality of ventilation slots penetrating both ends of the reaction frame; a plurality of upper reaction teeth fixedly disposed on the top side inside the ventilation slots, and a plurality of lower reaction teeth fixedly disposed on the bottom side inside the ventilation slots, and the plurality of upper reaction teeth and lower reaction teeth being alternately disposed sequentially within the ventilation slots.

[0006] Furthermore, the adsorption mechanism also includes a filter plate fixedly disposed inside the air inlet cylinder, and a perforated plate is fixedly disposed inside the air inlet cylinder on the inner side of the filter plate.

[0007] Furthermore, the adsorption mechanism also includes an air inlet on the air inlet cylinder, and a threaded connector is fixedly provided at one end of the duckbill tube; the duckbill tube is screwed onto the air inlet cylinder through the threaded connector and the air inlet.

[0008] Furthermore, the adsorption mechanism also includes an exhaust port opened on the exhaust pipe, and one end of the manual air pump is fixedly provided with a threaded connector two; the manual air pump is screwed onto the exhaust pipe through the threaded connector two and the exhaust port.

[0009] Furthermore, the reaction mechanism also includes several movable adjustment blocks that are elastically slidably disposed on the reaction frame, and each of the movable adjustment blocks is fixedly provided with a limit block; and the inner wall of the treatment box is provided with several limit slots corresponding to the several limit blocks.

[0010] Furthermore, the reaction mechanism also includes several springs fixedly mounted on the movable adjustment block, and the movable adjustment block is elastically slidably mounted on the reaction frame by the several springs.

[0011] Furthermore, a shoulder strap is fixedly provided on the top of the treatment box; a carrying strap is fixedly provided on the side wall of the treatment box away from the reaction rack.

[0012] Furthermore, several pads are fixedly installed at the bottom of the treatment box.

[0013] Furthermore, a method for controlling coal mine gas using a reaction chamber includes the following steps:

[0014] Step 1: Safety preparation and personnel allocation before treatment. The aforementioned coal mine gas treatment reaction box is incorporated into the coal mine safety production management system. The operator is a full-time gas inspector or a trained underground worker. The operator must wear a portable methane detector and check the integrity of the treatment box before entering the gas accumulation area. At the same time, a safety supervisor should be on site to monitor changes in gas concentration in the working environment. When the gas concentration reaches the warning threshold, the operation should be stopped immediately and the emergency plan should be activated.

[0015] Step 2: Installation and replacement of the reaction mechanism. Based on the composition and concentration of the gas to be treated, select the reaction frame with the corresponding reaction material. Press the movable adjustment block to compress the spring, align the limit block with the corresponding limit slot on the inner wall of the treatment box, and then release it to lock the reaction frame inside the treatment box. Ensure that several ventilation slots pass through both ends of the reaction frame without blockage. Several upper reaction teeth fixed on the top side inside the ventilation slot and several lower reaction teeth fixed on the bottom side inside the slot are arranged alternately.

[0016] Step 3: Assembly and connection of the adsorption mechanism. Screw on the air inlet cylinder at one end of the treatment box. Screw on the duckbill tube at the air inlet of the air inlet cylinder through a threaded connector. The duckbill tube is equipped with a one-way valve body to ensure that the gas can only flow into the treatment box in one direction. Screw on the exhaust cylinder at the end of the treatment box away from the air inlet cylinder. Screw on the manual air pump at the exhaust port of the exhaust cylinder through a threaded connector. The manual air pump is equipped with a one-way valve to ensure that it can only extract the gas inside the treatment box.

[0017] Step 4: Carrying and deploying the device to the target area. Depending on the site conditions, the operator can choose to carry the device on their back using the shoulder straps fixed to the top of the treatment box, or carry it by hand using the handles fixed to the side wall of the treatment box, and go to corners, chambers, blind alleys, or other local areas where gas is easy to accumulate that are difficult to cover by large-scale extraction systems in the coal mine. After arriving at the target location, the treatment box is placed stably on the roadway floor or platform using several pads at the bottom, and the air inlet end of the duckbill pipe is aligned with the area where the gas to be treated is concentrated.

[0018] Step 5: Manual negative pressure suction operation. The operator holds the duckbill tube with one hand to keep it facing the gas source, and repeatedly pushes and pulls the piston rod of the manual air pump with the other hand. Using the negative pressure suction generated by the manual air pump, the gas in the local area of ​​the coal mine enters the air inlet cylinder through the duckbill tube and the one-way valve body in sequence. During the suction process, the safety supervisor continuously monitors the gas concentration in the work area to ensure the safety of the working environment.

[0019] Step six: filtration, diversion, and reaction treatment of methane gas. The methane gas entering the intake cylinder first passes through a filter plate fixed inside it to remove particulate impurities such as coal dust and rock powder. Then it flows through a perforated plate fixed inside the filter plate, where the numerous holes in the perforated plate evenly divert the chaotic airflow into an orderly and dispersed airflow. The uniformly treated methane gas enters the treatment box and passes through the reaction frame, where it comes into full contact with the alternating upper and lower reaction teeth in several ventilation slots to achieve adsorption or reaction treatment of the methane gas.

[0020] Step 7: Discharge and circulation of gas after reaction. The remaining harmless gas after reaction flows out from the other end of the reaction rack, enters the manual air pump through the exhaust port of the exhaust stack, and is finally discharged to the external environment or return airway through the exhaust end of the manual air pump. The operator continuously pumps the manual air pump back and forth to continuously draw external gas into the treatment box for reaction treatment until the portable methane detector alarm shows that the gas concentration in the area has dropped below the safety limit, thus realizing the circulation treatment of gas in the local area of ​​the coal mine.

[0021] Step 8: Disassembly, maintenance, and recording of the device. After the treatment is completed, stop operating the manual air pump and unscrew the duckbill tube, air inlet, manual air pump, and exhaust pipe in sequence. Press the movable adjustment block to disengage the limit block from the limit slot on the inner wall of the treatment box. Take out the used reaction frame and inspect or replace the upper and lower reaction teeth. Clean all parts and store them. The operator shall record the time, location, gas concentration changes, and reaction frame usage of this gas treatment in the coal mine gas treatment ledger and include it in the safety management system for archiving.

[0022] Compared with existing technologies, the present invention provides a reaction box and treatment method for coal mine gas control. The method involves installing a reaction frame inside the treatment box, screwing a duckbill tube onto the air inlet, and screwing a manual air pump onto the exhaust pipe. The treatment box is carried by hand or over the shoulder to a dead corner or bend in the coal mine. The duckbill tube is aligned with the area to be treated, and the manual air pump is pumped back and forth, allowing the gas to enter the air inlet unidirectionally through the duckbill tube and then into the treatment box. The gas passes through multiple ventilation slots on the reaction frame, where it reacts fully with alternating upper and lower reaction teeth. The reacted gas is then discharged through the exhaust pipe by the manual air pump, achieving continuous treatment. The advantages of this device are as follows: It uses a manual air pump to create directional negative pressure suction, enabling flexible handling of localized methane gas that cannot be covered by large-scale extraction systems; the alternating upper and lower reaction blocks in the ventilation duct significantly extend the gas flow path, improving reaction efficiency; the reaction frame allows for easy replacement of reaction blocks made of different materials according to the methane composition, or convenient replacement after the reaction blocks fail; the treatment box is easy to carry and stably place, and the outer shell is made of scratch-resistant and wear-resistant materials, suitable for harsh coal mine environments, thus effectively filling the blind spots of existing large-scale extraction systems and improving the safety and convenience of localized methane control in coal mines. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0024] Figure 1 This is a schematic diagram of the overall structure of the gas control box provided in an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the reaction rack position structure of the gas control box provided in an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the duckbill tube connection structure provided in an embodiment of the present invention;

[0027] Figure 4This is a schematic diagram of a manual air pump structure provided in an embodiment of the present invention;

[0028] Figure 5 Provided for embodiments of the present invention Figure 4 Schematic diagram of the structure at point A in the middle;

[0029] Figure 6 This is a schematic diagram of the reaction frame structure provided in an embodiment of the present invention;

[0030] Figure 7 This is a schematic diagram of the reaction tooth block structure provided in an embodiment of the present invention;

[0031] Figure 8 Provided for embodiments of the present invention Figure 7 Schematic diagram of the structure at point B;

[0032] Figure 9 This is a schematic diagram of the disassembled air intake structure provided in an embodiment of the present invention;

[0033] Figure 10 This is a schematic diagram of the active adjustment block structure provided in an embodiment of the present invention.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Treatment box; 2. Shoulder strap; 3. Air inlet; 4. Air inlet; 5. Duckbill tube; 6. Manual air pump; 7. Exhaust pipe; 8. Exhaust port; 9. Reaction frame; 10. Adjustable block; 11. Threaded connector one; 12. Threaded connector two; 13. Pad; 14. One-way valve body; 15. Limiting block; 16. Vent groove; 17. Upper reaction tooth block; 18. Lower reaction tooth block; 19. Filter plate; 20. Perforated plate; 21. Hand strap; 30. Spring. Detailed Implementation

[0036] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0037] As attached Figure 1 To be continued Figure 10 As shown:

[0038] Example 1:

[0039] This invention provides a reaction box for coal mine gas control, including a control box 1, and further comprising: an adsorption mechanism disposed at both ends of the control box 1, the adsorption mechanism including an air inlet cylinder 3 screwed onto one end of the control box 1, a duckbill tube 5 screwed onto the air inlet cylinder 3, and a one-way valve body 14 fixedly disposed inside the duckbill tube 5; an exhaust cylinder 7 screwed onto one end of the control box 1 opposite to the air inlet cylinder 3, and a manual air pump 6 screwed onto the exhaust cylinder 7; and a reaction mechanism disposed inside the control box 1, the reaction mechanism including a reaction frame 9 limited and engaged inside the control box 1, the reaction frame 9 having a plurality of ventilation slots 16 extending through both ends of the reaction frame 9; a plurality of upper reaction teeth 17 fixedly disposed on the top side inside the ventilation slots 16, and a plurality of lower reaction teeth 18 fixedly disposed on the bottom side inside the ventilation slots 16, the plurality of upper reaction teeth 17 and lower reaction teeth 18 being alternately arranged sequentially within the ventilation slots 16;

[0040] Simultaneously, the reaction frame 9 is installed inside the treatment box 1 by locking it in place, and the limiting block 15 on the movable adjusting block 10 is elastically locked in conjunction with the spring 30. Then, the duckbill tube 5 is screwed onto the air inlet cylinder 3, and the manual air pump 6 is screwed onto the exhaust cylinder 7. The treatment box 1 is carried by hand or through the shoulder strap 2 to a dead corner or bend in the coal mine. The duckbill tube 5 is aligned with the area to be treated, and the manual air pump 6 is pumped back and forth, so that the gas enters the air inlet cylinder 3 in one direction through the one-way valve body 14 in the duckbill tube 5. After passing through the filter plate 19 to filter impurities and the perforated plate 20 to evenly guide the gas into the treatment box 1, the gas passes through the multiple ventilation slots 16 on the reaction frame 9 and reacts fully with the alternating upper reaction teeth 17 and lower reaction teeth 18 in the ventilation slots 16. The gas after the reaction is discharged through the exhaust cylinder 7 by the manual air pump 6, thus achieving continuous treatment. The advantages of this device are as follows: A directional negative pressure suction is formed by the manual air pump 6 in conjunction with the one-way valve body 14, which can flexibly handle localized methane gas that cannot be covered by large-scale extraction systems; the filter plate 19 and the perforated plate 20 effectively prevent debris blockage and ensure uniform airflow, avoiding localized overload of the reaction frame 9; the alternating upper reaction teeth 17 and lower reaction teeth 18 in the ventilation slot 16 significantly extend the gas flow path and improve reaction efficiency; the reaction frame 9 can be quickly disassembled and assembled via the movable adjustment block 10 and the spring 30, facilitating the replacement of reaction teeth of different materials (such as zeolite molecular sieves or metal-organic framework materials) according to the methane composition, or conveniently replacing reaction teeth after failure; the treatment box 1 is equipped with a shoulder strap 2 on the top, a carrying strap 21 on the side wall, and a pad 13 at the bottom for easy carrying and stable placement; the outer shell is made of scratch-resistant and wear-resistant material, suitable for harsh coal mine environments, thus effectively filling the blind spots of existing large-scale extraction systems and improving the safety and convenience of localized methane control in coal mines.

[0041] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The adsorption mechanism includes an air inlet cylinder 3, a duckbill pipe 5, an exhaust pipe 7, a manual air pump 6, a filter plate 19, and a perforated plate 20.

[0042] By incorporating a treatment box 1 and a reaction frame 9 fitted inside it, the gas in corners or alleys of the coal mine can be treated by the reaction frame 9, preventing the accumulation of residual gas in the mine. An air inlet 3 is screwed onto one end of the treatment box 1, with an air inlet 4. A duckbill pipe 5 is screwed onto the air inlet 3, allowing the treatment box 1 to easily draw in residual gas from corners of the mine through the duckbill pipe 5 for treatment by the reaction frame 9. An exhaust pipe 7 is screwed onto the end of the treatment box 1 opposite to the air inlet 3, and an exhaust port 8 is provided on the exhaust pipe 7. This allows the exhaust pipe 7 to be screwed onto a manual air pump 6 through the exhaust port 8. The manual air pump 6 is located at the other end of the treatment box 1 and can be manually operated to discharge the gas inside the treatment box 1. This allows the residual methane gas in the coal mine to enter the treatment box 1 through the air inlet 3, and then be reacted and treated by the reaction frame 9 inside the treatment box 1. The treated gas is then discharged by the manual air pump 6, thereby achieving the purpose of continuously treating the residual methane gas in the coal mine.

[0043] Meanwhile, a one-way valve is installed inside the manual air pump 6, ensuring that during operation, the manual air pump 6 can only extract gas from inside the treatment chamber 1 and cannot guide gas into the treatment chamber 1 through the exhaust pipe 7. This ensures that the gas can only enter the treatment chamber 1 through the air inlet 3, react with the reaction rack 9, and then be discharged through the manual air pump 6. A threaded connector 11 is fixedly connected to the duckbill pipe 5, allowing the duckbill pipe 5 to be easily replaced and replaced with the air inlet 4 via the threaded connector 11. A threaded connector 2 12 is fixedly connected to one end of the manual air pump 6, allowing the manual air pump 6 to be easily replaced and replaced with the threaded connector 2 12. The exhaust port 8 is screwed onto the exhaust pipe 7, which allows the manual air pump 6 to be easily replaced during use. A filter plate 19 is fixedly connected inside the air inlet pipe 3, so that when the gas is introduced into the treatment box 1 through the air inlet pipe 3, the filter plate 19 can filter the impurities in the gas. A perforated plate 20 is fixedly connected inside the air inlet pipe 3 on the inner side of the filter plate 19, so that when the gas is introduced into the treatment box 1 through the air inlet pipe 3, the perforated plate 20 can guide the gas into the reaction rack 9 in an orderly manner for reaction treatment, thereby improving the gas treatment efficiency and preventing the gas from concentrating in one place in the reaction rack 9 for treatment.

[0044] Secondly, during the use of the treatment box 1, the shoulder strap 2 fixedly connected to the top of the treatment box 1 makes it easy for staff to carry the treatment box 1 on their backs. The handle 21 set on the side wall of the treatment box 1 makes it easy for staff to hold the treatment box 1 by hand and operate it. This improves the ease of use of the treatment box 1. In addition, several pads 13 are fixedly connected to the bottom of the treatment box 1, so that the treatment box 1 can be stably supported by the pads 13 when placed.

[0045] In addition, the outer shell of the treatment box 1 is made of scratch-resistant and wear-resistant material to improve the service life of the treatment box 1 in the coal mine.

[0046] Example 2:

[0047] refer to Figure 2 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10 The reaction mechanism includes a reaction frame 9, a ventilation slot 16, an upper reaction tooth block 17, a lower reaction tooth block 18, and a movable adjustment block 10;

[0048] By fixing a reaction frame 9 inside the treatment box 1, the gas introduced into the treatment box 1 can be reacted and treated by the reaction frame 9, thus preventing the gas from accumulating in the coal mine. Several ventilation slots 16 are provided inside the reaction frame 9, extending through both ends of the frame. This allows the gas to pass through the ventilation slots 16 at one end of the frame 9 for reaction treatment, and then be discharged from the other end, thereby achieving gas treatment. The purpose of the gas is to carry out reaction treatment. Several upper reaction tooth blocks 17 are fixedly connected to the top side inside the ventilation groove 16, and several lower reaction tooth blocks 18 are fixedly connected to the bottom side inside the ventilation groove 16. The several upper reaction tooth blocks 17 and lower reaction tooth blocks 18 are arranged alternately inside the ventilation groove 16, so that after the gas enters the ventilation groove 16, the flow time of the gas in the ventilation groove 16 can be increased, and the gas will contact and react with the several upper reaction tooth blocks 17 and lower reaction tooth blocks 18 in sequence, thereby achieving the purpose of efficient reaction treatment of the gas.

[0049] Meanwhile, the materials used in the upper reaction tooth block 17 and lower reaction tooth block 18 in the ventilation trough 16 include, but are not limited to, microbial complexes, artificial zeolite molecular sieves, metal-organic framework materials, specially made TD-539 adsorbent materials, and activated carbon materials. Furthermore, the upper reaction tooth block 17 and lower reaction tooth block 18 are both in solid form to avoid generating dust and posing safety hazards, thereby achieving the purpose of conveniently treating residual methane gas in coal mines.

[0050] Secondly, several movable adjustment blocks 10 are elastically slidably connected to the reaction frame 9, and a limiting block 15 is fixedly connected to one end of the movable adjustment block 10. A limiting slot is opened on the inner wall of the treatment box 1 at the corresponding position of the limiting block 15. This allows the reaction frame 9 to slide several movable adjustment blocks 10 during installation and use, locking the limiting block 15 into the inner wall of the treatment box 1, thereby achieving the purpose of stably locking the reaction frame 9. Several springs 30 are fixedly connected to the other end of the movable adjustment block 10, making it easy for the movable adjustment block 10 to be elastically slidably adjusted on the reaction frame 9 by several springs 30. This improves the convenience of installing and disassembling the reaction frame 9, and facilitates the convenient replacement of the reaction frame 9. Under different usage conditions, the upper reaction tooth block 17 and lower reaction tooth block 18 of different materials can be replaced to treat the gas, or the upper reaction tooth block 17 and lower reaction tooth block 18 can be conveniently replaced after they have reached the end of their service life.

[0051] Example 3:

[0052] refer to Figures 1-10 A method for controlling coal mine gas using a reaction tank includes the following steps:

[0053] Step 1: Safety preparation and personnel allocation before treatment. The aforementioned reaction box for coal mine gas treatment is incorporated into the coal mine safety production management system. The operator is a full-time gas inspector or a trained underground worker. The operator must wear a portable methane detector and check the integrity of the treatment box 1 before entering the gas accumulation area. At the same time, a safety supervisor should be on site to monitor changes in gas concentration in the working environment. When the gas concentration reaches the warning threshold, the operation should be stopped immediately and the emergency plan should be activated.

[0054] Step 2: Installation and replacement of the reaction mechanism. Based on the composition and concentration of the gas to be treated, select the reaction frame 9 with the corresponding reaction material. Press the movable adjusting block 10 to compress the spring 30, align the limiting block 15 with the corresponding limiting slot on the inner wall of the treatment box 1, and then release it to lock the reaction frame 9 into place inside the treatment box 1. Ensure that several ventilation slots 16 pass through both ends of the reaction frame 9 without blockage. Several upper reaction teeth 17 fixedly installed on the top side inside the ventilation slot 16 and several lower reaction teeth 18 fixedly installed on the bottom side inside the ventilation slot 16 are arranged alternately in sequence.

[0055] Step 3: Assembly and connection of the adsorption mechanism. Screw on the air inlet cylinder 3 at one end of the treatment box 1. Screw on the duckbill tube 5 at the air inlet 4 of the air inlet cylinder 3 through threaded connector 11. The duckbill tube 5 is fixedly equipped with a one-way valve body 14 to ensure that the gas can only flow into the treatment box 1 in one direction. Screw on the exhaust cylinder 7 at the end of the treatment box 1 away from the air inlet cylinder 3. Screw on the manual air pump 6 at the exhaust port 8 of the exhaust cylinder 7 through threaded connector 12. The manual air pump 6 is equipped with a one-way valve to ensure that it can only extract the gas inside the treatment box 1.

[0056] Step 4: Carrying and deploying the device to the target area. Depending on the site conditions, the operator can choose to carry the device on their back using the shoulder strap 2 fixed to the top of the treatment box 1, or carry it by hand using the hand strap 21 fixed to the side wall of the treatment box 1, and go to corners, chambers, blind alleys, or other local areas where gas is easy to accumulate that are difficult to cover by large-scale extraction systems in the coal mine. After arriving at the target location, the treatment box 1 is placed stably on the roadway floor or platform using several pads 13 set at the bottom, and the air inlet end of the duckbill pipe 5 is aligned with the gas accumulation area to be treated.

[0057] Step 5: Manual negative pressure suction operation. The operator holds the duckbill tube 5 with one hand to keep it facing the gas source, and repeatedly pushes and pulls the piston rod of the manual air pump 6 with the other hand. Using the negative pressure suction generated by the manual air pump 6, the gas in the local area of ​​the coal mine enters the air inlet cylinder 3 through the duckbill tube 5 and the one-way valve body 14 in sequence. During the suction process, the safety supervisor continuously monitors the gas concentration in the work area to ensure the safety of the working environment.

[0058] Step six: filtration, diversion, and reaction treatment of gas. The gas entering the intake cylinder 3 first passes through the filter plate 19 fixed inside it to filter out particulate impurities such as coal dust and rock powder. Then it flows through the porous plate 20 fixed inside the filter plate 19, where the numerous holes on the porous plate 20 evenly divert the chaotic airflow into an orderly dispersed airflow. The uniformly treated gas enters the treatment box 1 and passes through the reaction frame 9. In several ventilation slots 16, it comes into full contact with the alternating upper reaction tooth blocks 17 and lower reaction tooth blocks 18 to achieve the adsorption or reaction treatment of gas.

[0059] Step 7: Discharge and circulation treatment of gas after reaction. The remaining harmless gas after reaction treatment flows out from the other end of the reaction rack 9, enters the manual air pump 6 through the exhaust port 8 of the exhaust stack 7, and is finally discharged to the external environment or return air roadway through the exhaust end of the manual air pump 6. The operator continuously pumps the manual air pump 6 back and forth to continuously draw external gas into the treatment box 1 for reaction treatment until the portable methane detector alarm shows that the gas concentration in the area has dropped below the safety limit, thus realizing the circulation treatment of gas in the local area of ​​the coal mine.

[0060] Step 8: Disassembly, maintenance, and recording of the device. After the treatment is completed, stop pumping the manual air pump 6 and unscrew the duckbill pipe 5, air inlet 3, manual air pump 6, and exhaust pipe 7 in sequence. Press the movable adjusting block 10 to disengage the limiting block 15 from the limiting slot on the inner wall of the treatment box 1. Take out the used reaction frame 9 and inspect or replace the upper reaction tooth block 17 and lower reaction tooth block 18. Clean all parts and store them. The operator shall record the time, location, gas concentration changes, and usage of the reaction frame 9 in the coal mine gas treatment ledger and include it in the safety management system for archiving.

[0061] Working principle: First, assemble and prepare for use. Install the reaction rack 9 into the treatment box 1 by pressing the movable adjusting block 10 to compress the spring 30. Align the limiting block 15 with the corresponding limiting slot on the inner wall of the treatment box 1 and then release it. Under the elastic force of the spring 30, the limiting block 15 is firmly locked into the limiting slot, thus stably fixing the reaction rack 9 inside the treatment box 1. Then, screw the air inlet cylinder 3 into one end of the treatment box 1 and connect the duckbill tube 5 to the air inlet 4 of the air inlet cylinder 3 through the threaded connector 11. The duckbill tube 5 has a one-way valve body 14 fixed inside to ensure that the gas can only flow into the treatment box 1 in one direction. Next, screw the exhaust pipe 7 into the end of the treatment box 1 away from the air inlet cylinder 3 and connect the manual air pump 6 to the exhaust port 8 of the exhaust pipe 7 through the threaded connector 12. The manual air pump 6 also has a one-way valve inside to ensure that it can only draw out the gas inside the treatment box 1 and cannot inject it in the opposite direction.After assembly, the operator can choose to carry the device on their back using the shoulder strap 2 fixed to the top of the treatment box 1, or by hand using the carrying strap 21 fixed to the side wall, depending on the site conditions. The device can then be carried to corners, dead ends, and other areas prone to gas accumulation that are difficult for large-scale extraction systems to cover within the coal mine. Upon reaching the target location, the operator aligns the air inlet of the duckbill pipe 5 with the area of ​​localized gas to be treated. With the other hand, the operator repeatedly pushes and pulls the piston rod of the manual air pump 6. Under the negative pressure suction generated by the manual air pump 6, the gas from the corner of the coal mine passes sequentially through the duckbill pipe 5 and the one-way valve body 14 into the air inlet cylinder 3. The gas first passes through the filter plate 19 fixed inside the air inlet cylinder 3, where it is filtered out. Large particles of impurities, such as coal dust and rock powder, are mixed in and then flow through a perforated plate 20 fixed inside the filter plate 19. The perforations on the perforated plate 20 evenly guide the chaotic airflow into an orderly and dispersed airflow, preventing the gas from concentrating in one place on the reaction frame 9 for reaction. The uniformly mixed gas enters the treatment box 1 and then passes through the reaction frame 9 that is engaged inside the treatment box 1. The reaction frame 9 has several ventilation slots 16 that extend through both ends. Each ventilation slot 16 has multiple upper reaction teeth 17 fixedly installed on the top side and multiple lower reaction teeth 18 fixedly installed on the bottom side. The upper reaction teeth 17 and lower reaction teeth 18 are arranged alternately in the ventilation slot 16. As the gas flows through the ventilation trough 16, it zigs along the surface of the alternating toothed blocks in a wave-like pattern, significantly extending the contact path and residence time between the gas and the reaction toothed blocks. Components in the gas, such as methane, react fully with or are efficiently adsorbed by the reaction toothed block material (which can be a microbial complex, artificial zeolite molecular sieve, metal-organic framework material, specially formulated TD-539 adsorbent material, or activated carbon material, etc.). The remaining harmless gas after the reaction process flows out from the other end of the reaction rack 9, enters the manual air pump 6 through the exhaust port 8 of the exhaust stack 7, and is finally discharged to the external environment through the exhaust end of the manual air pump 6. The operator can continuously and repeatedly pump the manual air pump. 6. External methane gas is continuously drawn into the treatment box 1 for reaction, achieving cyclic treatment of methane in local areas of the coal mine. When the upper reaction tooth block 17 and lower reaction tooth block 18 on the reaction frame 9 become saturated or fail due to long-term use, or when it is necessary to replace the reaction frame 9 with a reaction tooth block of a different material for different methane components, simply press the movable adjusting block 10 to disengage the limiting card block 15 from the limiting card slot on the inner wall of the treatment box 1, and the old reaction frame 9 can be removed. Then, the new reaction frame 9 can be installed in the same way as described above. The entire replacement process does not require complicated tools. After use, the duckbill tube 5, air inlet 3, manual air pump 6, and exhaust pipe 7 can be unscrewed and disassembled in sequence for easy cleaning and storage.

[0062] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A reaction box for coal mine gas control, comprising a control box (1), characterized in that, Also includes: An adsorption mechanism is provided at both ends of the treatment box (1). The adsorption mechanism includes an air inlet cylinder (3) screwed onto one end of the treatment box (1), a duckbill tube (5) screwed onto the air inlet cylinder (3), and a one-way valve body (14) fixedly installed inside the duckbill tube (5). An exhaust cylinder (7) screwed onto one end of the treatment box (1) away from the air inlet cylinder (3), and a manual air pump (6) screwed onto the exhaust cylinder (7). The reaction mechanism is located inside the treatment box (1). The reaction mechanism includes a reaction frame (9) that is limited and engaged inside the treatment box (1). The reaction frame (9) has several ventilation slots (16) and the ventilation slots (16) pass through both ends of the reaction frame (9). Several upper reaction teeth (17) are fixedly arranged on the top side inside the ventilation slot (16), and several lower reaction teeth (18) are fixedly arranged on the bottom side inside the ventilation slot (16). The upper reaction teeth (17) and lower reaction teeth (18) are alternately arranged in sequence inside the ventilation slot (16).

2. The reaction box for coal mine gas control according to claim 1, characterized in that, The adsorption mechanism also includes a filter plate (19) fixedly disposed inside the air inlet cylinder (3), and a perforated plate (20) is fixedly disposed inside the air inlet cylinder (3) on the inner side of the filter plate (19).

3. The reaction box for coal mine gas control according to claim 2, characterized in that, The adsorption mechanism also includes an air inlet (4) opened on the air inlet cylinder (3), and a threaded connector (11) is fixedly provided at one end of the duckbill tube (5). The duckbill tube (5) is screwed onto the air inlet cylinder (3) through the threaded connector (11) and the air inlet (4).

4. The reaction box for coal mine gas control according to claim 3, characterized in that, The adsorption mechanism also includes an exhaust port (8) opened on the exhaust pipe (7), and a threaded pipe (12) is fixedly provided at one end of the manual air pump (6). The manual air pump (6) is screwed onto the exhaust pipe (7) through the threaded pipe (12) and the exhaust port (8).

5. A reaction chamber for coal mine gas control according to claim 1, characterized in that, The reaction mechanism also includes a plurality of movable adjustment blocks (10) that are elastically slidably disposed on the reaction frame (9), and each of the plurality of movable adjustment blocks (10) is fixedly provided with a limit block (15). Furthermore, the inner wall of the treatment box (1) is provided with several limiting slots corresponding to several limiting blocks (15).

6. A reaction chamber for coal mine gas control according to claim 5, characterized in that, The reaction mechanism also includes several springs (30) fixedly mounted on the movable adjustment block (10), and the movable adjustment block (10) is elastically slidably mounted on the reaction frame (9) by the several springs (30).

7. A reaction chamber for coal mine gas control according to claim 1, characterized in that, The top of the treatment box (1) is fixedly equipped with a shoulder strap (2); A carrying strap (21) is fixedly installed on the side wall of the treatment box (1) away from the reaction rack (9).

8. A reaction chamber for coal mine gas control according to claim 1, characterized in that, Several pads (13) are fixedly installed at the bottom of the treatment box (1).

9. A method for controlling coal mine gas using a reaction chamber, comprising the coal mine gas control reaction chamber as described in any one of claims 1 to 8, characterized in that, Includes the following steps: Step 1: Safety preparation and personnel allocation before treatment. The aforementioned reaction box for coal mine gas treatment shall be incorporated into the coal mine safety production management system. The operator shall be a full-time gas inspector or a trained underground worker. The operator shall wear a portable methane detector and check the integrity of the treatment box (1) before entering the gas accumulation area. At the same time, a safety supervisor shall be assigned to the site to monitor the changes in gas concentration in the working environment. When the gas concentration reaches the warning threshold, the operation shall be stopped immediately and the emergency plan shall be activated. Step 2, installation and replacement of the reaction mechanism. According to the composition and concentration of the gas to be treated, select the reaction frame (9) with the corresponding reaction material. Press the movable adjustment block (10) to compress the spring (30). Align the limiting block (15) with the corresponding limiting slot on the inner wall of the treatment box (1) and release it to make the reaction frame (9) limit and lock it inside the treatment box (1). Ensure that several ventilation slots (16) pass through both ends of the reaction frame (9) without blockage. Several upper reaction teeth (17) fixedly set on the top side inside the ventilation slot (16) and several lower reaction teeth (18) fixedly set on the bottom side inside are arranged alternately. Step 3, Assembly and connection of the adsorption mechanism: Screw on the air inlet cylinder (3) at one end of the treatment box (1), and screw on the duckbill tube (5) at the air inlet (4) of the air inlet cylinder (3) through threaded connector one (11). A one-way valve body (14) is fixedly installed inside the duckbill tube (5) to ensure that the gas can only flow into the treatment box (1) in one direction. Screw on the exhaust cylinder (7) at the end of the treatment box (1) away from the air inlet cylinder (3), and screw on the manual air pump (6) at the exhaust port (8) of the exhaust cylinder (7) through threaded connector two (12). A one-way valve is installed inside the manual air pump (6) to ensure that it can only extract the gas inside the treatment box (1). Step 4: Carrying and deploying the device to the target area. Depending on the site conditions, the operator can choose to carry the device on their back using the shoulder strap (2) fixed on the top of the treatment box (1), or carry it by hand using the hand strap (21) fixed on the side wall of the treatment box (1). The device is then carried to corners, chambers, blind alleys, or other local areas where gas is easy to accumulate that are difficult to cover by large-scale extraction systems in the coal mine. After arriving at the target location, the treatment box (1) is placed stably on the roadway floor or platform using several pads (13) at the bottom. The air inlet end of the duckbill pipe (5) is aligned with the gas accumulation area to be treated. Step 5: Manual negative pressure suction operation. The operator holds the duckbill tube (5) with one hand to keep it facing the gas source, and repeatedly pushes and pulls the piston rod of the manual air pump (6) with the other hand. Using the negative pressure suction effect generated by the manual air pump (6), the gas in the local area of ​​the coal mine enters the air inlet cylinder (3) through the duckbill tube (5) and the one-way valve body (14) in sequence. During the suction process, the safety supervisor continuously monitors the gas concentration in the work area to ensure the safety of the work environment. Step 6: Filtration, diversion and reaction treatment of gas. The gas entering the inlet cylinder (3) first passes through the filter plate (19) fixed inside it to filter out particulate impurities such as coal dust and rock powder mixed in the gas; then it flows through the porous plate (20) fixed inside the filter plate (19), and the chaotic airflow is evenly diverted into an orderly dispersed airflow by several holes on the porous plate (20); the uniform gas enters the treatment box (1) and passes through the reaction rack (9), and in several ventilation slots (16) it comes into full contact with the alternating upper reaction tooth block (17) and lower reaction tooth block (18) to achieve the adsorption or reaction treatment of gas. Step 7: Discharge and circulation treatment of gas after reaction. The remaining harmless gas after reaction treatment flows out from the other end of the reaction rack (9), enters the manual air pump (6) through the exhaust port (8) of the exhaust pipe (7), and is finally discharged to the external environment or return air roadway through the exhaust end of the manual air pump (6). The operator continuously pumps the manual air pump (6) back and forth to continuously draw the external gas into the treatment box (1) for reaction treatment until the portable methane detector alarm shows that the gas concentration in the area has dropped below the safety limit, thus realizing the circulation treatment of gas in the local area of ​​the coal mine. Step 8: Disassembly, maintenance and recording of the device. After the treatment is completed, stop pumping the manual air pump (6), and unscrew and disassemble the duckbill pipe (5), air inlet (3), manual air pump (6) and exhaust pipe (7) in sequence; press the movable adjustment block (10) to make the limit block (15) disengage from the limit slot on the inner wall of the treatment box (1), take out the used reaction frame (9), and inspect or replace the upper reaction tooth block (17) and lower reaction tooth block (18); clean all parts and store them; the operator shall record the time, location, gas concentration change and the usage of the reaction frame (9) in the coal mine gas treatment ledger and include it in the safety management system for archiving management.

Images