High-altitude low-pressure low-oxygen mine oxygen supplement and pressure regulation and dust toxin synergistic regulation system and method

Abstract

The application discloses a high-altitude low-pressure low-oxygen mine oxygen-increasing pressure-supplementing and dust-toxin synergistic regulation system and method, which comprises the following: a dry dust removal system for purifying and treating air in a mine roadway; a hierarchical molecular sieve oxygen production and air curtain dust separation system for separating and preparing oxygen-rich gas from the air treated by the dry dust removal system; a temperature-increasing pressure-increasing oxygen-supplementing system for receiving the oxygen-rich gas and forming directional oxygen-increasing air covering a working surface after heating; an environment monitoring and local oxygen-increasing integrated system for monitoring mine roadway environment parameters in real time and outputting regulation instructions of the dry dust removal system, the hierarchical molecular sieve oxygen production and air curtain dust separation system and the temperature-increasing pressure-increasing oxygen-supplementing system; and a track moving platform for connecting and controlling the whole system to move along the mine roadway. The application can effectively improve the extreme working environment of a high-altitude mine, realize accurate improvement of oxygen concentration, suitable adjustment of temperature and efficient synergistic treatment of dust and toxic and harmful gases in a working area.

Description

Technical Field

[0001] This invention belongs to the field of mine environmental control technology, specifically relating to a system and method for synergistic regulation of oxygenation and pressure replenishment and dust and toxic substances in high-altitude, low-pressure, and low-oxygen mines. Background Technology

[0002] As mineral resource development expands to higher altitudes and deeper areas, the working environment is becoming increasingly complex and challenging. High-altitude mines generally face a natural environment of low atmospheric pressure and thin oxygen content (hypoxia), making workers susceptible to altitude sickness, reduced labor capacity, and seriously threatening their health and safety. Simultaneously, underground blasting, tunneling, and transportation activities generate large amounts of dust (such as rock dust and coal dust) and toxic gases (such as nitrogen oxides and carbon oxides), which are more easily accumulated under low-pressure and limited ventilation conditions, creating a cumulative dust and toxic hazard. Traditional mine ventilation and dust removal technologies become less efficient in high-altitude, low-pressure environments, and single oxygen-enriching or dust-removing equipment is insufficient to address the complex pollution challenges of low oxygen, high dust, and toxic substances. Summary of the Invention

[0003] The purpose of this invention is to provide a system and method for oxygen replenishment and pressure supplementation and dust and toxic gas synergistic control in high-altitude, low-pressure, and low-oxygen mines, which can effectively improve the extreme working environment of high-altitude mines, achieve precise increase of oxygen concentration in the working area, appropriate temperature regulation, and efficient synergistic control of dust and toxic and harmful gases.

[0004] To achieve the above objectives, this invention provides a system for synergistic regulation of oxygenation and pressure replenishment and dust / toxicity control in high-altitude, low-pressure, and low-oxygen mines, comprising: Dry dust removal systems are used to purify the air in mine roadways; A graded molecular sieve oxygen generation and air curtain dust removal system is connected to a dry dust removal system to separate the air after it has been treated by the dry dust removal system and prepare oxygen-enriched gas. The heating, pressurizing and oxygen-supplementing system is connected to the graded molecular sieve oxygen generation and air curtain dust removal system. It is used to receive oxygen-enriched gas and heat it to form directional oxygen-enriching air covering the work surface. The integrated environmental monitoring and local oxygenation system is connected to the dry dust removal system. It is used to monitor the environmental parameters of the mine roadway in real time and output control commands for the dry dust removal system, the graded molecular sieve oxygen generation and air curtain dust removal system, and the heating, pressurizing and oxygenation system. The track-mounted mobile platform is used to connect and control the dry dust removal system, the graded molecular sieve oxygen generation and air curtain dust isolation system, the heating and pressurizing oxygen supplementation system, and the environmental monitoring and local oxygenation integrated system to move along the mine roadway.

[0005] As a further aspect of the present invention: the dry dust removal system includes a dry dust collector body, one end of which is provided with a dust suction port, and the other end is provided with a square to round flange for connecting the graded molecular sieve oxygen generation and air curtain dust separation system. A central controller is installed on the side of the dry dust collector body, and an environmental monitoring and local oxygenation integrated system connected to the central controller is connected to the top of the dry dust collector.

[0006] As a further embodiment of the present invention: the graded molecular sieve oxygen generation and air curtain dust isolation system includes a negative pressure fan connected to a square to round flange. The other end of the negative pressure fan is connected to a self-starting and shut-off air compressor via a one-to-three flange. The other end of the self-starting and shut-off air compressor is connected to an oxygen-generating molecular sieve via a connecting flange. The other ends of all oxygen-generating molecular sieves are connected to an oxygen integrated pipe via a one-to-two flange and are independently connected to an air curtain nozzle. The oxygen integrated pipe is connected to a heating, oxygenation and pressurization system via a quick-connect flange II.

[0007] As a further aspect of the present invention: the air curtain nozzle is connected to the first-to-second flange via an electric gate valve. The air curtain nozzle includes an air curtain pipe wall. An air curtain cone is connected to the end of the air curtain pipe wall away from the first-to-second flange via a tapered pipe frame. The size of the air curtain cone gradually decreases toward the first-to-second flange.

[0008] As a further aspect of the present invention: the environmental monitoring and local oxygenation integrated system includes a support platform located above the main body of the dry dust collector. An oxygen concentration sensor, a nitrogen oxide sensor, a dust concentration sensor, a carbon oxide sensor, and a temperature and humidity sensor are installed side by side on one end of the support platform near the dust inlet. The center of the support platform is connected to the oxygen integrated pipe through an oxygen delivery pipe. Several local oxygen supply pipes connected to the oxygen delivery pipe are provided on the side of the support platform.

[0009] As a further aspect of the present invention: the heating, pressurizing and oxygen-supplementing system includes a wall-mounted heating and oxygen-supplementing duct, the rear end of which is connected to an oxygen integrated pipe via a quick-connect tee pipe and a quick-connect flange I, and an electromagnetic heating system is connected to the wall-mounted heating and oxygen-supplementing duct.

[0010] As a further aspect of the present invention: the electromagnetic heating system includes a magnetic coil and an induction electromagnetic rod. The magnetic coil is fitted outside the wall-mounted heating and oxygenation duct and is connected to an alternating current controller. The induction electromagnetic rod is installed inside the wall-mounted heating and oxygenation duct via a support frame and is located at the center of the magnetic field of the magnetic coil.

[0011] As a further embodiment of the present invention: the track-moving platform includes guide rail I and guide rail II, which are parallel to the top surface of the mine roadway. Guide rail I is connected to and controls the heating, oxygenation and pressurization system to move in the mine roadway through hook I. Guide rail II is connected to and controls the environmental monitoring and intelligent control system, the graded molecular sieve oxygen generation and air curtain dust removal system and the dry dust removal system to move in the mine roadway through hook II.

[0012] To achieve the above-mentioned objectives, this invention also provides a control method based on the aforementioned high-altitude, low-pressure, and low-oxygen mine oxygenation and pressurization synergistic control system for dust and toxic substances, comprising the following steps: S1: The track-mounted mobile platform carries the entire system to the target work area; S2: The environmental monitoring and intelligent control system monitors the oxygen concentration, dust concentration, toxic and harmful gas concentration, temperature and humidity of the work area in real time. S3: The graded molecular sieve oxygen generation and air curtain dust removal system is working. The self-closing air compressor compresses the clean air discharged from the dry dust removal system. When the air passes through the oxygen generation molecular sieve, the molecular columns inside the oxygen generation molecular sieve adsorb nitrogen and separate oxygen to produce oxygen-enriched gas. S4: At the same time, another oxygen-generating molecular sieve shuts down the self-starting and shut-off air compressor connected to it. At this time, the air pressure drops sharply, the nitrogen adsorbed by the molecular column is re-desorbed and sprayed out from the air curtain nozzle, forming a dust-proof air curtain under the pressure of the air curtain cone. S5: The last oxygen-generating molecular sieve is in the open state, allowing air to flow out directly; S6: Based on the monitoring results of the environmental monitoring and intelligent control system, intelligent collaborative control is carried out to achieve stable control of environmental parameters.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention integrates a dry dust removal system, a graded molecular sieve oxygen generation and air curtain dust isolation system, a heating and pressurizing oxygen supplementation system, an environmental monitoring and local oxygen supplementation integrated system, and a track-mounted mobile platform into one unit. It utilizes the dry dust removal system to purify the air in mine roadways, and the graded molecular sieve oxygen generation and air curtain dust isolation system, the heating and pressurizing oxygen supplementation system, the environmental monitoring and local oxygen supplementation integrated system, and the track-mounted mobile platform work together to achieve oxygenation and supplementation based on oxygen concentration monitoring at different locations in the mine roadways. This integrated and coordinated control of oxygenation, supplementation, dust removal, and detoxification effectively protects the health and safety of workers. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the high-altitude, low-pressure, low-oxygen mine oxygenation and pressurization synergistic regulation system for dust and toxic substances according to the present invention. Figure 2 This is a schematic diagram showing the connection between the dry dust removal system and the graded molecular sieve oxygen generation and air curtain dust separation system in this invention; Figure 3 This is a schematic diagram of the environmental monitoring and intelligent control system in this invention; Figure 4 This is a schematic diagram of the graded molecular sieve oxygen generation and air curtain dust removal system in this invention; Figure 5 This is a schematic diagram of the cross-sectional structure of the air curtain nozzle in this invention; Figure 6 This is a schematic diagram of the electromagnetic heating system structure in this invention; Figure 7 This is a schematic diagram illustrating the principle of oxygen-generating molecular sieve compression oxygenation in this invention. Figure 8 This is a schematic diagram illustrating the principle of the oxygen-generating molecular sieve desorption process in this invention.

[0015] In the diagram: 1. Guide rail I, 2. Hook I, 3. Guide rail II, 4. Hook II, 5. Wall-mounted heating and oxygenation duct, 6. Electromagnetic heating system, 7. Quick-connect flange I, 8. Oxygen delivery pipe, 9. Dry dust removal system, 10. Environmental monitoring and local oxygenation integrated system, 11. Graded molecular sieve oxygen generation and air curtain dust removal system, 12. Quick-connect flange II, 13. Quick-connect tee pipe; 51. Wall-mounted compressed air outlet; 61. Alternating current controller; 62. Support frame; 63. Magnetic coil; 64. Induction electromagnetic rod; 91. Central controller; 92. Square to round flange; 93. Dust suction port; 94. Dry dust collector body; 101. Oxygen concentration sensor; 102. Nitrogen oxide sensor; 103. Dust concentration sensor; 104. Carbon oxide sensor; 105. Temperature and humidity sensor; 106. Local oxygen supply pipe; 107. Support platform. 111. One-to-three flange, 112. Negative pressure fan, 113. Oxygen integrated pipe, 114. Self-starting and closing air compressor, 115. Connecting flange, 116. Oxygen generating molecular sieve, 117. One-to-two flange, 118. Electric gate valve, 119. Air curtain nozzle. 1141. Hydraulic opening and closing support; 1191. Air curtain tube wall; 1192. Air curtain cone; 1193. Cone tube frame. Detailed Implementation

[0016] The present invention will be further illustrated by the following examples.

[0017] like Figure 1 As shown, the high-altitude, low-pressure, and low-oxygen mine oxygenation and pressurization synergistic control system for dust and toxic substances includes: Dry dust removal system 9 is used to purify the air in mine roadways; The graded molecular sieve oxygen generation and air curtain dust removal system 11 is connected to the dry dust removal system 9 and is used to separate the air after the dry dust removal system 9 is processed and to prepare oxygen-enriched gas. The heating, pressurizing and oxygen-supplementing system is connected to the graded molecular sieve oxygen generation and air curtain dust removal system 11. It is used to receive oxygen-enriched gas and heat it to form directional oxygen-enriching air covering the work surface. The environmental monitoring and local oxygenation integrated system 10 is connected to the dry dust removal system 9 and is used to monitor the environmental parameters of the mine roadway in real time and output control commands for the dry dust removal system 9, the graded molecular sieve oxygen generation and air curtain dust removal system 11, and the heating, pressurizing and oxygen replenishment system. The track-mounted mobile platform is used to connect and control the dry dust removal system 9, the graded molecular sieve oxygen generation and air curtain dust isolation system 11, the heating and pressurizing oxygen supplementation system, and the environmental monitoring and local oxygenation integrated system 10 to move along the mine roadway.

[0018] In order to efficiently purify the air in mine tunnels, further, such as Figure 2 As shown, the dry dust removal system 9 includes a dry dust collector body 94. One end of the dry dust collector body 94 is provided with a dust suction port 93, which collects dust-laden airflow in the mine roadway. After being purified by the dry dust collector body 94, it provides a clean air source for the entire system. The other end is provided with a square to round flange 92 for connecting the graded molecular sieve oxygen generation and air curtain dust isolation system 11. A central controller 91 is installed on the side of the dry dust collector body 94. An environmental monitoring and local oxygenation integrated system 10 connected to the central controller 91 is connected to the top of the dry dust collector.

[0019] Furthermore, such as Figure 2 and Figure 4 As shown, the graded molecular sieve oxygen generation and air curtain dust control system 11 includes a negative pressure fan 112 connected to a square-to-round flange 92 to adapt to low-pressure environments. The other end of the negative pressure fan 112 is connected to a self-starting air compressor 114 via a one-to-three flange 111. The other end of the self-starting air compressor 114 is connected to an oxygen-generating molecular sieve 116 via a connecting flange 115. All oxygen-generating molecular sieves 116 are connected to an oxygen integrated pipe 113 via a one-to-two flange 117, and each is independently connected to an air curtain nozzle 119. The oxygen integrated pipe 113 is connected to a heating, oxygenation, and pressurization system via a quick-connect flange II 12. For ease of installation and maintenance, the self-starting air compressor 114 is equipped with a hydraulic opening and closing bracket 1141.

[0020] Furthermore, such as Figure 4 and Figure 5 As shown, the air curtain nozzle 119 is connected to the first-to-second flange 117 via an electric gate valve 118. The air curtain nozzle 119 includes an air curtain pipe wall 1191. An air curtain cone 1192 is connected to the end of the air curtain pipe wall 1191 away from the first-to-second flange 117 via a cone pipe bracket 1193. The size of the air curtain cone 1192 gradually decreases towards the first-to-second flange 117, which can integrate the airflow into a stable air curtain with a wide coverage area.

[0021] In order to comprehensively perceive the environmental conditions within the mine roadways and thus adjust the overall system operation in real time, further, such as Figure 3As shown, the environmental monitoring and local oxygenation integrated system 10 includes a support platform 107 located above the dry dust collector body 94. On the support platform 107, near the dust inlet 93, an oxygen concentration sensor 101, a nitrogen oxide sensor 102, a dust concentration sensor 103, a carbon oxide sensor 104, and a temperature and humidity sensor 105 are installed in parallel, which can monitor the air quality entering the dust inlet 93 in real time. The center of the support platform 107 is connected to the oxygen integrated pipe 113 through an oxygen delivery pipe 8 for real-time delivery of generated oxygen to ensure that the oxygen concentration is within a certain range. Several local oxygen supply pipes connected to the oxygen delivery pipe 8 are provided on the side of the support platform 107 for precise oxygen replenishment to the oxygen deficiency points identified by the sensors.

[0022] Furthermore, such as Figure 1 As shown, the heating, pressurizing, and oxygen-supplementing system includes a wall-mounted heating and oxygen-supplementing duct 5. The rear end of the duct 5 is connected to an oxygen integrated pipe 113 via a quick-connect tee pipe 13 and a quick-connect flange I7, used to supplement the airflow with a high concentration of oxygen. An electromagnetic heating system 6 is connected to the wall-mounted heating and oxygen-supplementing duct 5. Furthermore, the duct wall is provided with a wall-mounted pressure air inlet 51, which can utilize the wall-mounted effect of airflow to enhance injection and mixing.

[0023] To achieve the heating effect on the airflow, further, such as Figure 6 As shown, the electromagnetic heating system 6 includes a magnetic coil 63 and an induction electromagnetic rod 64. The magnetic coil 63 is fitted onto the outside of the wall-mounted heating and oxygenation duct 5 and is connected to an alternating current controller 61. The induction electromagnetic rod 64 is installed inside the wall-mounted heating and oxygenation duct 5 via a support frame 62 and is located at the center of the magnetic field of the magnetic coil 63. Under the electromagnetic induction effect, the airflow can be heated efficiently and safely.

[0024] In order to enable the track-mounted mobile platform to support and drive the entire system, further, such as Figure 1 As shown, the track-moving platform includes guide rail I1 and guide rail II3 parallel to the top surface of the mine roadway. Guide rail I1 is connected to the heating, oxygenation and pressurization system via hook I2 to move within the mine roadway. Guide rail II3 is connected to the environmental monitoring and intelligent control system, the graded molecular sieve oxygen generation and air curtain dust removal system 11, and the dry dust removal system 9 via hook II4 to move within the mine roadway, realizing the flexible movement and positioning of the entire system along the mine roadway.

[0025] The control method based on the above-mentioned high-altitude, low-pressure, and low-oxygen mine oxygenation and pressurization synergistic control system for dust and toxic substances includes the following steps: S1: The track-mounted mobile platform carries the entire system to the target work area; S2: The environmental monitoring and intelligent control system monitors the oxygen concentration, dust concentration, toxic and harmful gas concentration, temperature and humidity of the work area in real time. S3: The graded molecular sieve oxygen generation and air curtain dust removal system 11 is in operation. The self-starting air compressor 114 compresses the clean air discharged from the dry dust removal system 9. When the air passes through the oxygen-generating molecular sieve 116, the molecular columns inside the oxygen-generating molecular sieve 116 adsorb nitrogen, separating oxygen to produce oxygen-enriched gas. Figure 7 As shown; S4: Simultaneously, another oxygen-generating molecular sieve 116 shuts down its corresponding self-starting and shut-off air compressor 114. At this time, the air pressure drops sharply, the nitrogen adsorbed by the molecular column is re-desorbed, and is ejected from the air curtain nozzle 119. Figure 8 As shown, a dust-proof air curtain is formed under the pressure of the air curtain cone 1192; S5: The last oxygen-generating molecular sieve 116 is in the open state to ensure system pressure balance, allowing air to flow out directly, thus forming a three-stage molecular sieve oxygen generation system with one production, one removal, and one discharge. S6: Based on the monitoring results of the environmental monitoring and intelligent control system, intelligent coordinated control is carried out, including local fixed-point oxygen supplementation, activation of heating and oxygenation air curtains to improve the overall environment, and strengthening dust removal. Each subsystem is dynamically adjusted to achieve stable control of environmental parameters.

[0026] Through this multi-parameter sensing and multi-system linkage collaborative control method, the present invention can effectively cope with the complex environmental challenges of low pressure, low oxygen, high dust, and toxicity in high-altitude mines.

Claims

1. A system for coordinated regulation of oxygenation and pressurization with dust and toxic substances in high-altitude, low-pressure, and low-oxygen mines, characterized in that: include: Dry dust removal system (9) is used to purify the air in mine roadways; The graded molecular sieve oxygen generation and air curtain dust separation system (11) is connected to the dry dust removal system (9) and is used to separate the air after the dry dust removal system (9) and prepare oxygen-enriched gas. The graded molecular sieve oxygen generation and air curtain dust separation system (11) includes three oxygen-generating molecular sieves (116). One oxygen-generating molecular sieve (116) adsorbs nitrogen in pressurized mode to produce oxygen-enriched gas, another oxygen-generating molecular sieve (116) desorbs nitrogen in depressurized mode to form a dust-separating air curtain, and the last oxygen-generating molecular sieve (116) is in the open state, allowing air to flow out directly. The heating and pressurizing oxygen supplementation system is connected to the graded molecular sieve oxygen generation and air curtain dust removal system (11) to receive oxygen-enriched gas and electromagnetically heat it to form directional oxygenation wind covering the working surface. An integrated environmental monitoring and local oxygenation system (10) is connected to a dry dust removal system (9) to monitor the environmental parameters of the mine roadway in real time and output control commands for the dry dust removal system (9), the graded molecular sieve oxygen generation and air curtain dust removal system (11), and the heating, pressurizing and oxygenation system. The track-mounted mobile platform is used to connect and control the dry dust removal system (9), the graded molecular sieve oxygen generation and air curtain dust isolation system (11), the heating and pressurizing oxygen supplementation system, and the environmental monitoring and local oxygenation integrated system (10) to move along the mine roadway.

2. The high-altitude, low-pressure, low-oxygen mine oxygenation and pressurization synergistic control system for dust and toxic substances according to claim 1, characterized in that, The dry dust removal system (9) includes a dry dust collector body (94), one end of which is provided with a dust suction port (93), and the other end is provided with a square to round flange (92) for connecting the graded molecular sieve oxygen generation and air curtain dust separation system (11). A central controller (91) is installed on the side of the dry dust collector body (94), and an environmental monitoring and local oxygenation integrated system (10) connected to the central controller (91) is connected to the top of the dry dust collector body (94).

3. The high-altitude, low-pressure, low-oxygen mine oxygenation and pressurization synergistic control system for dust and toxic substances according to claim 2, is characterized in that, The graded molecular sieve oxygen generation and air curtain dust control system (11) includes a negative pressure fan (112) connected to a square to round flange (92). The other end of the negative pressure fan (112) is connected to a self-starting and shut-off air compressor (114) via a one-to-three flange (111). The other end of the self-starting and shut-off air compressor (114) is connected to an oxygen-generating molecular sieve (116) via a connecting flange (115). The other end of all oxygen-generating molecular sieves (116) is connected to an oxygen integrated pipe (113) via a one-to-two flange (117), and each is independently connected to an air curtain nozzle (119). The oxygen integrated pipe (113) is connected to the heating and pressurizing oxygen supplementation system via a quick-connect flange II (12).

4. The high-altitude, low-pressure, low-oxygen mine oxygenation and pressurization synergistic control system for dust and toxic substances according to claim 3, is characterized in that, The air curtain nozzle (119) is connected to the first-to-second flange (117) via an electric gate valve (118). The air curtain nozzle (119) includes an air curtain pipe wall (1191). An air curtain cone (1192) is connected inside the end of the air curtain pipe wall (1191) away from the first-to-second flange (117) via a cone pipe bracket (1193). The size of the air curtain cone (1192) gradually decreases toward the first-to-second flange (117).

5. The high-altitude, low-pressure, low-oxygen mine oxygenation and pressurization synergistic control system for dust and toxic substances according to claim 3, is characterized in that, The integrated environmental monitoring and local oxygenation system (10) includes a support platform (107) located above the dry dust collector body (94). On the support platform (107), near the dust inlet (93), an oxygen concentration sensor (101), a nitrogen oxide sensor (102), a dust concentration sensor (103), a carbon oxide sensor (104), and a temperature and humidity sensor (105) are installed in parallel. The center of the support platform (107) is connected to the oxygen integrated pipe (113) through an oxygen delivery pipe (8). Several local oxygen supply pipes (106) connected to the oxygen delivery pipe (8) are provided on the side of the support platform (107).

6. The high-altitude, low-pressure, low-oxygen mine oxygenation and pressurization synergistic control system for dust and toxic substances according to claim 3, is characterized in that, The heating, pressurizing and oxygen supplementation system includes a wall-mounted heating and oxygen supplementation duct (5). The rear end of the wall-mounted heating and oxygen supplementation duct (5) is connected to the oxygen integrated pipe (113) through a quick-connect tee pipe (13) and a quick-connect flange I (7). An electromagnetic heating system (6) is connected to the wall-mounted heating and oxygen supplementation duct (5).

7. The high-altitude, low-pressure, low-oxygen mine oxygenation and pressurization synergistic control system for dust and toxic substances according to claim 6, is characterized in that, The electromagnetic heating system (6) includes a magnetic coil (63) and an induction electromagnetic rod (64). The magnetic coil (63) is fitted outside the wall-mounted heating and oxygenation duct (5) and is connected to an alternating current controller (61). The induction electromagnetic rod (64) is installed inside the wall-mounted heating and oxygenation duct (5) through a support frame (62) and is located at the center of the magnetic field of the magnetic coil (63).

8. The high-altitude, low-pressure, low-oxygen mine oxygenation and pressurization synergistic control system for dust and toxic substances according to any one of claims 1-7, characterized in that, The track-moving platform includes guide rail I (1) and guide rail II (3) which are parallel to the top surface of the mine roadway. Guide rail I (1) is connected to the heating, pressurizing and oxygen supplementation system via hook I (2) to move in the mine roadway. Guide rail II (3) is connected to the environmental monitoring and local oxygen supplementation integrated system (10), the graded molecular sieve oxygen generation and air curtain dust isolation system (11) and the dry dust removal system (9) via hook II (4) to move in the mine roadway.

9. A control method for a high-altitude, low-pressure, low-oxygen mine oxygenation and pressurization synergistic control system for dust and toxic substances, as described in any one of claims 3-7, characterized in that... Includes the following steps: S1: The track-mounted mobile platform carries the entire system to the target work area; S2: Environmental monitoring and local oxygenation integrated system (10) Real-time monitoring of oxygen concentration, dust concentration, toxic and harmful gas concentration and temperature and humidity in the work area; S3: The graded molecular sieve oxygen generation and air curtain dust removal system (11) is working. The self-starting air compressor (114) compresses the clean air discharged from the dry dust removal system (9). When the air passes through the oxygen generation molecular sieve (116), the molecular column inside the oxygen generation molecular sieve (116) adsorbs nitrogen and separates oxygen to produce oxygen-enriched gas. S4: At the same time, another oxygen-generating molecular sieve (116) shuts down the self-starting and shut-off air compressor (114) connected to it. At this time, the air pressure drops sharply, the nitrogen adsorbed by the molecular column is re-desorbed and sprayed out from the air curtain nozzle (119). Under the pressure of the air curtain cone (1192) in the air curtain nozzle (119), a dust-proof air curtain is formed. S5: The last oxygen-generating molecular sieve (116) is in the open state, allowing air to flow out directly; S6: Based on the monitoring results of the integrated environmental monitoring and local oxygenation system (10), intelligent coordinated regulation is carried out to achieve stable control of environmental parameters.

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