Mining intrinsic safety type aerial fog spraying controller

Abstract

The invention relates to the technical field of coal mine safety detection equipment, and provides a mining intrinsic safety type aerial fog spraying controller which comprises a rod tail seat, the top of the rod tail seat is connected with a telescopic rod piece, the top of the telescopic rod piece is connected with a handle pipe, the outer side of the handle pipe is connected with a handle cover, and the top of the handle pipe is connected with a first mounting plate. The two ends of the top of the first mounting plate are connected with connecting rods, the tops of the two connecting rods are connected with a shell, the outer side of the shell is connected with a control panel, a gas cylinder is connected between the two connecting rods, the top of the shell is connected with a second mounting plate, one end of the top of the second mounting plate is connected with an electromagnetic valve, and the outlet end of the electromagnetic valve is connected with a movable connector. The outlet end of the movable connector is connected with a smoke outlet nozzle, and the other end of the top of the second mounting plate is connected with a heating head. The technical defects of a traditional aerial fog spraying controller are comprehensively overcome through the height-adjustable telescopic rod piece, the direction-flexible spraying head, the uniform heat source design, the real-time monitoring system and safe and portable operation.

Description

Intrinsically Safe Aerosol Spray Controller for Mining Technical Field

[0001] This invention relates to the field of coal mine safety detection equipment technology, specifically to an intrinsically safe aerosol spray controller for mining. Background Technology

[0002] The underground environment of coal mines is complex, with risks of explosions from gas and coal dust, making safety monitoring equipment crucial. Aerosol spray controllers, as monitoring tools, are used to generate simulated smoke to verify sensor sensitivity. Traditional equipment needs to operate in narrow and variable tunnels, requiring adjustable height, flexible direction, realistic heat sources, and compliance with intrinsically safe standards to prevent accidents caused by electrical sparks. However, existing technologies have certain technical defects: First, most existing aerosol spray controllers use fixed rods, which cannot be flexibly adjusted according to tunnel height or detection position. The height of underground tunnels in coal mines varies, and fixed structures lead to blind spots or require additional tools, reducing efficiency. Second, the fixed direction of the smoke nozzles in traditional equipment makes it difficult to cope with curved or complex tunnel structures, easily creating detection blind spots. Third, the heating heads of existing equipment are often simply designed with uneven heat distribution, resulting in low visibility of simulated smoke or large temperature fluctuations, failing to realistically simulate fire scenarios. Fourth, existing equipment often lacks real-time monitoring systems, such as air pressure and temperature displays, making it impossible for users to intuitively grasp the remaining gas cylinder or equipment status, easily leading to detection interruptions or overheating failures. In view of this, this invention proposes an intrinsically safe aerosol spray controller for mining. Summary of the Invention

[0003] This invention proposes an intrinsically safe aerosol spray controller for mining, which solves the problem that existing aerosol spray controllers cannot be flexibly adjusted according to the roadway height or detection position.

[0004] The technical solution of the present invention is as follows: an intrinsically safe aerosol spray controller for mining, comprising a rod end seat, a telescopic rod fixedly connected to the top of the rod end seat, a handle tube fixedly connected to the top of the telescopic rod, a handle cover fixedly connected to the outer side of the handle tube, a first mounting plate fixedly connected to the top of the handle tube, connecting rods fixedly connected to both ends of the top of the first mounting plate, a housing fixedly connected to the top of the two connecting rods, a control panel fixedly connected to the outer side of the housing, a gas cylinder fixedly connected between the two connecting rods, a second mounting plate fixedly connected to the top of the housing, a solenoid valve fixedly connected to one end of the top of the second mounting plate, the inlet end of the solenoid valve being connected to the gas cylinder via a conduit, a movable joint rotatably connected to the outlet end of the solenoid valve, a smoke nozzle fixedly connected to the outlet end of the movable joint, and a heating head fixedly connected to the other end of the top of the second mounting plate.

[0005] Preferably, the telescopic rod includes a first electric actuator fixedly connected to the top of the rod end seat, a second electric actuator fixedly connected to the output end of the first electric actuator, a third electric actuator fixedly connected to the output end of the second electric actuator, a fourth electric actuator fixedly connected to the output end of the third electric actuator, and the output end of the fourth electric actuator fixedly connected to the handle tube.

[0006] Preferably, a power switch is fixedly connected to one end of the handle cover, a first smoke outlet switch is fixedly connected to the middle of the handle cover, a storage battery is fixedly connected to the inner side of the handle cover, the power switch is electrically connected to the storage battery, and the first smoke outlet switch is electrically connected to the power switch.

[0007] Preferably, a second smoke outlet switch is fixedly connected to the bottom of the rod end seat, and the second smoke outlet switch is electrically connected to the power switch.

[0008] Preferably, a charging port is provided at the bottom of the handle cover, and a silicone cover is slidably fitted on the inner side of the charging port.

[0009] Preferably, a heat dissipation copper chamber is fixedly connected to the inner side of the outer shell, and a heat pack is fixedly connected to the inner side of the heat dissipation copper chamber. The top of the heat dissipation copper chamber abuts against the heat head.

[0010] Preferably, a temperature display is fixedly connected to the top of the outer side of the control panel, and the temperature display is electrically connected to the power switch.

[0011] Preferably, a temperature sensor is fixedly connected to the inner side of the heat dissipation copper compartment, and the temperature sensor is electrically connected to a temperature display.

[0012] Preferably, a pressure gauge is fixedly connected to the bottom of the outer side of the control panel, and the pressure gauge is connected to the gas cylinder outlet pipe through a conduit.

[0013] Preferably, the heating head has a frustum structure and several through holes are provided on the heating head.

[0014] The working principle and beneficial effects of this invention are as follows: 1. The telescopic rod adopts a multi-stage electric actuator series design (including a first electric actuator, a second electric actuator, a third electric actuator, and a fourth electric actuator) to achieve smooth and stable height adjustment, with a maximum working height of up to 2.5 meters. This solves the problem that traditional fixed rods cannot adapt to the varying heights of coal mine roadways, reduces blind spots in detection, and can cover high and low position sensors without additional tools, thus improving detection efficiency.

[0015] 2. The solenoid valve outlet connects to the smoke nozzle via a movable connector, allowing the nozzle to rotate 360 ​​degrees, easily handling curved or complex tunnel structures. This avoids detection blind spots caused by traditional fixed nozzles, ensuring uniform mist coverage of the target sensor and improving the comprehensiveness and accuracy of detection.

[0016] 3. The heating head is designed as a frustum structure with several through holes, which, together with the heat dissipation copper chamber and heating pack, ensures uniform heat distribution and avoids localized overheating. This improves the visibility and realism of the simulated smoke, minimizes temperature fluctuations, meets the requirements of fire scenario simulation, and enhances the reliability of sensor testing.

[0017] 4. The control panel integrates a temperature display and a pressure gauge, allowing users to intuitively monitor the remaining gas level in the cylinders and the equipment's temperature status. This prevents detection interruptions or overheating failures, supports early leak detection, reduces resource waste, and complies with inherent safety standards for coal mines. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 is a schematic diagram of the intrinsically safe aerosol spray controller for mining according to the present invention (first diagram); Figure 2 is a schematic diagram of the intrinsically safe aerosol spray controller for mining according to the present invention (second diagram); Figure 3 is a schematic diagram of the telescopic rod of the intrinsically safe aerosol spray controller for mining according to the present invention; Figure 4 is a partial structural schematic diagram of the intrinsically safe aerosol spray controller for mining according to the present invention; Figure 5 is a schematic diagram of the handle cover of the intrinsically safe aerosol spray controller for mining according to the present invention; Figure 6 is a schematic diagram of the internal structure of the outer shell of the intrinsically safe aerosol spray controller for mining according to the present invention; Figure 7 is a schematic diagram of the control panel of the intrinsically safe aerosol spray controller for mining according to the present invention.

[0020] In the diagram: 1. Rod end seat; 2. Telescopic rod; 21. First electric actuator; 22. Second electric actuator; 23. Third electric actuator; 24. Fourth electric actuator; 3. Handle tube; 4. Handle cover; 41. Power switch; 42. First smoke outlet switch; 43. Charging interface; 44. Silicone cover; 5. First mounting plate; 6. Connecting rod; 7. Housing; 71. Heat dissipation copper chamber; 72. Heating pack; 73. Temperature sensor; 8. Control panel; 81. Temperature display; 82. Pressure gauge; 9. Gas cylinder; 10. Second mounting plate; 11. Heating head; 12. Movable joint; 13. Solenoid valve; 14. Smoke nozzle; 15. Second smoke outlet switch. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0022] As shown in Figures 1 to 7, this embodiment proposes an intrinsically safe aerosol spray controller for mining, including a rod end seat 1. A telescopic rod 2 is fixedly connected to the top of the rod end seat 1. A handle tube 3 is fixedly connected to the top of the telescopic rod 2. A handle cover 4 is fixedly connected to the outside of the handle tube 3. A first mounting plate 5 is fixedly connected to the top of the handle tube 3. Connecting rods 6 are fixedly connected to both ends of the top of the first mounting plate 5. A housing 7 is fixedly connected to the top of the two connecting rods 6. A control panel 8 is fixedly connected to the outside of the housing 7. A gas cylinder 9 is fixedly connected between the two connecting rods 6. A second mounting plate 10 is fixedly connected to the top of the housing 7. A solenoid valve 13 is fixedly connected to one end of the top of the second mounting plate 10. The inlet end of the solenoid valve 13 is connected to the gas cylinder 9 through a conduit. A movable joint 12 is rotatably connected to the outlet end of the solenoid valve 13. A smoke nozzle 14 is fixedly connected to the outlet end of the movable joint 12. A heating head 11 is fixedly connected to the other end of the top of the second mounting plate 10.

[0023] In this embodiment, the overall height is adjusted by the telescopic rod 2 to adapt to different coal mine detection scenarios. The gas cylinder 9 stores pressurized gas, which opens when the solenoid valve 13 receives a control signal. The gas flows through a conduit to the movable joint 12, which allows the smoke nozzle 14 to flexibly adjust its direction. Finally, the gas is ejected from the smoke nozzle 14 to form an aerosol. Simultaneously, the heating head 11 is heated by an external heating pack 72 to generate heat and simulate a real smoke environment. The control panel 8 integrates control logic, allowing users to operate the entire system via switches. This design enables height-adjustable aerosol spraying, improving the flexibility and coverage of coal mine safety detection. The combination of the movable joint 12 and the smoke nozzle 14 ensures 360-degree adjustment of the spray direction, avoiding blind spots. The heating head 11 enhances the visibility and realism of the aerosol, facilitating the detection of ventilation system efficiency. The overall structure is compact and suitable for narrow mine tunnels.

[0024] In a further preferred embodiment of the present invention, the heating head 11 has a frustum structure and several through holes are provided on the heating head 11.

[0025] In this embodiment, the heating head 11 is designed as a frustum structure with several through holes on its surface. Heat is conducted from the heat dissipation copper chamber 71 to the surface of the frustum and is evenly distributed through the through holes, expanding the heat exchange area and improving the coverage of the smoke simulation. The frustum structure and through holes enhance heat diffusion efficiency, making the smoke more uniform and realistic. It reduces hot spot concentration and improves equipment durability. The structure is simple and easy to manufacture, reducing costs and adapting to various scenarios.

[0026] In a further preferred embodiment of the present invention, the telescopic rod 2 includes a first electric actuator 21 fixedly connected to the top of the rod end seat 1, a second electric actuator 22 fixedly connected to the output end of the first electric actuator 21, a third electric actuator 23 fixedly connected to the output end of the second electric actuator 22, a fourth electric actuator 24 fixedly connected to the output end of the third electric actuator 23, and the output end of the fourth electric actuator 24 fixedly connected to the handle tube 3.

[0027] In this embodiment, the telescopic rod 2 consists of four stages connected in series: a first electric actuator 21, a second electric actuator 22, a third electric actuator 23, and a fourth electric actuator 24. Each stage of the electric actuator extends and retracts sequentially, and the movement is coordinated by electrical control signals to achieve smooth height expansion or contraction. The output ends of the electric actuators sequentially transmit power, ultimately driving the handle tube 3 to rise and fall. The multi-stage electric actuator design significantly expands the telescopic range (up to several meters), meeting the needs of high-level detection; the sequential extension and retraction reduces swaying and improves stability; the high precision of electric control avoids the laborious problem of manual adjustment, making it particularly suitable for high places or dangerous areas.

[0028] In a further preferred embodiment of the present invention, a power switch 41 is fixedly connected to one end of the handle cover 4, a first smoke outlet switch 42 is fixedly connected to the middle of the handle cover 4, a storage battery is fixedly connected to the inner side of the handle cover 4, the power switch 41 is electrically connected to the storage battery, the first smoke outlet switch 42 is electrically connected to the power switch 41, a second smoke outlet switch 15 is fixedly connected to the bottom of the rod end seat 1, and the second smoke outlet switch 15 is electrically connected to the power switch 41; a charging interface 43 is provided at the bottom of the handle cover 4, and a silicone cover 44 is slidably fitted on the inner side of the charging interface 43.

[0029] In this embodiment, the battery inside the handle cover 4 powers the entire system, and the power switch 41 controls the main power supply. The first smoke outlet switch 42 is electrically connected to the power switch 41. When the user presses the first smoke outlet switch 42, the signal triggers the solenoid valve 13 to open, releasing the gas in the gas cylinder 9. The battery is recharged through the charging interface 43, and the silicone cover 44 is dustproof and waterproof. The dual-switch design (power switch 41 and first smoke outlet switch 42) improves operational safety and prevents accidental activation. Battery power ensures that the device can work in an environment without external power, enhancing portability. The second smoke outlet switch 15 is located at the bottom of the rod end seat 1 and is electrically connected to the power switch 41. Users can trigger the second smoke outlet switch 15 with their foot or an auxiliary tool, and the signal directly controls the solenoid valve 13 to achieve remote or manual spraying operation. This design increases operational versatility, allowing users to start spraying when their hands are busy (such as holding other tools). The bottom switch design reduces operational difficulty and improves detection efficiency. The redundant switch design improves system reliability and avoids single point of failure. The charging interface 43 is located at the bottom of the handle cover 4 and is sealed by a sliding silicone cover 44. During charging, the silicone cover 44 is pushed open to connect the power supply to charge the battery. After charging, the silicone cover 44 is closed to prevent coal dust or moisture from entering. The silicone cover 44 provides IP-level protection to ensure the charging interface 43 is durable in harsh environments. The sliding design simplifies operation and reduces component wear. The convenient charging extends the equipment's battery life and reduces downtime.

[0030] In this embodiment, a further preferred embodiment of the present invention, a heat dissipation copper chamber 71 is fixedly connected to the inner side of the outer shell 7, and a heating pack 72 is fixedly connected to the inner side of the heat dissipation copper chamber 71. The top of the heat dissipation copper chamber 71 abuts against the heating head 11. A temperature display 81 is fixedly connected to the top of the outer side of the control panel 8. The temperature display 81 is electrically connected to the power switch 41. A temperature sensor 73 is fixedly connected to the inner side of the heat dissipation copper chamber 71. The temperature sensor 73 is electrically connected to the temperature display 81.

[0031] In this embodiment, the heat dissipation copper chamber 71 is fixed inside the outer casing 7. The heat-generating pack 72 inside the chamber generates heat, which is evenly transferred to the heating head 11 through the high thermal conductivity of the copper chamber. The top of the heat dissipation copper chamber 71 contacts the heating head 11 to ensure maximum thermal efficiency. The temperature sensor 73 monitors the heat in real time and feeds the data back to the control unit. The heat dissipation copper chamber 71 prevents localized overheating, improving heating uniformity and safety. The combination of the heating pack 72 and the copper chamber allows for rapid reaching of the operating temperature, saving energy. Temperature monitoring prevents overheating damage to the equipment, making it suitable for long-term continuous operation.

[0032] The temperature display 81 is fixed to the top of the outer side of the control panel 8 and electrically connected to the power switch 41. It receives data from the temperature sensor 73 and displays the real-time temperature of the heating element 11 or the ambient temperature, allowing users to intuitively monitor the system status. Visualized temperature data helps users accurately control smoke simulation conditions, improving detection accuracy. Early warning functions reduce the risk of malfunctions, meeting coal mine safety standards. The integrated display reduces reliance on external equipment. The temperature sensor 73 is embedded inside the heat dissipation copper chamber 71, directly detecting the temperature of the heating element 72 or the copper chamber and transmitting the signal to the temperature display 81. The sensor uses high-precision components to ensure real-time data and reliability; it can accurately monitor temperature to avoid equipment failures or safety accidents caused by overheating; the sensor and display work together to achieve automated control, reducing the need for manual intervention; it enhances the intelligence of the equipment and is suitable for automated detection systems.

[0033] In a further preferred embodiment of the present invention, a pressure gauge 82 is fixedly connected to the bottom of the outer side of the control panel 8, and the pressure gauge 82 is connected to the gas outlet pipe of the gas cylinder 9 through a conduit.

[0034] In this embodiment, the pressure gauge 82 is connected to the outlet pipe of the gas cylinder 9 via a conduit to display the gas pressure inside the cylinder in real time. Users can observe the pressure value through the control panel 8 to determine the remaining gas level in the cylinder or the system leakage situation; furthermore, the pressure gauge 82 provides critical pressure data to prevent detection interruptions caused by insufficient gas supply; early leak detection improves maintenance efficiency and reduces resource waste; the integrated design saves space and keeps the equipment compact.

[0035] Workflow: I. Equipment Assembly and Inspection: First, remove the controller from the carrying case and check the integrity of each component, including the main structure such as the rod end seat 1, telescopic rod 2, handle tube 3, and outer shell 7. Ensure there is no deformation or damage.

[0036] 2. Check the installation of gas cylinder 9: The gas cylinder is fixed between the two connecting rods 6 and connected to the solenoid valve 13 via a conduit. Observe the reading on the pressure gauge 82. The normal pressure range is 0.4 to 0.7 MPa. If the pressure is insufficient, the gas cylinder needs to be replaced.

[0037] 3. Install the heating pack 72: Unpack the heating pack and insert it into the heat dissipation copper chamber 71 within 2 minutes, then tighten it securely. The heating pack conforms to the QB / T4903-2016 standard and begins to heat up approximately 2 minutes after contact with air; confirm that the smoke nozzle 14 and heating head 11 are not blocked or damaged. The heating head has a frustum structure with through holes to ensure even heat distribution.

[0038] IV. Power Start-up and Display Initialization: Press the power switch 41 on the handle cover 4 to turn on battery power. The LCD display on the control panel 8 will then activate, first displaying the remaining battery power for about 3 seconds. When the battery power drops below 20%, it needs to be charged. Then it will automatically switch to temperature display mode. The temperature display 81 displays the ambient temperature in real time, and the temperature sensor 73 is embedded inside the heat dissipation copper compartment 71 to monitor the status of the heat pack. The pressure gauge 82 simultaneously displays the gas cylinder pressure value.

[0039] If lighting is required, press and hold the first smoke outlet switch on the function button for 423 seconds to turn on the intrinsically safe lighting, which is convenient for operation in low-light environments underground.

[0040] V. Height Adjustment and Positioning: The height of the controller is adjusted via the telescopic rod 2. The telescopic rod consists of a series of multi-stage electric actuators: first electric actuator 21, second electric actuator 22, third electric actuator 23, and fourth electric actuator 24, which extend and retract sequentially to achieve smooth lifting and lowering. The maximum working height can reach 2.5m, suitable for narrow underground tunnels.

[0041] During adjustment, the movement of the electric actuator is coordinated via an electronic control signal to ensure that the smoke nozzle 14 and the heating head 11 are aligned with the target sensor at a distance of 10–20 cm. The movable joint 12 allows the nozzle to rotate 360 ​​degrees, avoiding detection blind spots.

[0042] The core of the smoke testing operation phase is the alternating or independent execution of smoke and temperature tests. Operations must adhere to intrinsic safety guidelines to prevent the risk of methane or coal dust explosions.

[0043] Positioning and Preparation: Aim the smoke nozzle 14 at the smoke sensor being tested, such as a gas-sensitive or ionization type, maintaining a distance of 10–20 cm. If the underground wind speed is >4 m / s, a baffle should be installed in the direction of the incoming wind from the sensor to reduce airflow interference.

[0044] Triggering the spray: The solenoid valve 13 is triggered in one of the following ways: Handle operation: Briefly press the first smoke outlet switch 42 on the handle cover. The solenoid valve opens for 0.2 seconds, achieving quantitative spraying. The spray volume is stable with an error of <5%, ensuring repeatable testing.

[0045] Operation at the rod end: Briefly press the second smoke switch 15 at the bottom of the rod end seat 1 for remote triggering when both hands are busy.

[0046] Gas release and sensor response: After the solenoid valve opens, the pressurized gas in cylinder 9 is ejected from the smoke nozzle through the conduit and movable connector 12, forming a simulated mist. The sensor under test should display a change in ppm value or trigger an alarm on the main unit within 3-5 seconds after the gas is ejected, indicating that the function is normal.

[0047] Real-time monitoring: During operation, the pressure gauge 82 continuously displays the cylinder pressure. If the pressure is lower than 0.4 MPa, the cylinder must be replaced in time.

[0048] The temperature testing procedure is as follows: Heating start-up: After the heating pack 72 comes into contact with air inside the heat dissipation copper chamber 71, it begins to generate heat in about 2 minutes, with a maximum temperature ≤70℃. The temperature display 81 displays the heating process in real time. After the temperature stabilizes in the range of 50~70℃ for 4-5 hours, the test can begin.

[0049] Infrared temperature sensor: Align the heating head 11 with the infrared receiving window of the sensor to ensure the beam is aligned and avoid misalignment.

[0050] Contact temperature sensor: The heating head is placed close to or in close contact with the sensor's sensitive element, and effective heat conduction is achieved by utilizing the copper housing for heat conduction.

[0051] Response verification: The displayed value of the temperature sensor under test should rise significantly within 10 seconds after the test, such as from the ambient temperature of 20℃ to above 50℃, indicating that the sensor response is normal.

[0052] Safety warning: The heating pack operates at a high temperature. Operators must wear protective gloves and avoid direct contact with the heating head. If abnormal temperature rise or leakage is found during testing, stop using it immediately.

[0053] Dual-mode collaborative operation: In complex scenarios, smoke and temperature tests can be performed simultaneously. For example, smoke can be sprayed first, followed by verification of the temperature sensor using a heating head, with temperature and pressure data monitored synchronously via control panel 8; the lighting function can be maintained by holding down the switch during testing to ensure operational visibility; after testing, the equipment must be safely shut down and maintained to ensure long-term reliability.

[0054] Equipment shutdown: Briefly press the power switch 41 to cut off the main power supply, and the temperature display and barometer will stop working; if the lighting is on, briefly press the function button again to turn it off; wait for the temperature of the heat dissipation copper chamber 71 to drop to the ambient temperature for about 30 minutes before disassembling the heat pack remains and disposing of them in accordance with local regulations.

[0055] Storage and Maintenance: Retract the telescopic rod 2 step by step to a retracted height of approximately 74cm to reduce space occupation; check the gas cylinder level and replace it if the pressure is insufficient; clean the smoke nozzle and heating head orifice to prevent blockage; charge the battery through the charging port 43, and slide the silicone cover 44 for dust and water protection. Ensure the environment is dry during charging.

[0056] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A mine-use intrinsically safe aerosol spray controller, comprising a rod end seat (1), wherein a telescopic rod (2) is fixedly connected to the top of the rod end seat (1), characterized in that, The top of the telescopic rod (2) is fixedly connected to a handle tube (3), the outside of the handle tube (3) is fixedly connected to a handle cover (4), the top of the handle tube (3) is fixedly connected to a first mounting plate (5), both ends of the top of the first mounting plate (5) are fixedly connected to connecting rods (6), the tops of the two connecting rods (6) are fixedly connected to a housing (7), the outside of the housing (7) is fixedly connected to a control panel (8), the two connecting rods (6) are fixedly connected to a gas cylinder (9), the top of the housing (7) is fixedly connected to a second mounting plate (10), one end of the top of the second mounting plate (10) is fixedly connected to a solenoid valve (13), the inlet end of the solenoid valve (13) is connected to the gas cylinder (9) through a conduit, the outlet end of the solenoid valve (13) is rotatably connected to a movable joint (12), the outlet end of the movable joint (12) is fixedly connected to a smoke nozzle (14), and the other end of the top of the second mounting plate (10) is fixedly connected to a heating head (11).

2. The intrinsically safe aerosol spray controller for mining according to claim 1, characterized in that, The telescopic rod (2) includes a first electric actuator (21) fixedly connected to the top of the rod end seat (1), a second electric actuator (22) fixedly connected to the output end of the first electric actuator (21), a second electric actuator (22) fixedly connected to the output end of the second electric actuator (22), a third electric actuator (23) fixedly connected to the output end of the second electric actuator (22), a fourth electric actuator (24) fixedly connected to the output end of the third electric actuator (23), and the output end of the fourth electric actuator (24) fixedly connected to the handle tube (3).

3. The intrinsically safe aerosol spray controller for mining according to claim 1, characterized in that, A power switch (41) is fixedly connected to one end of the handle cover (4), a first smoke outlet switch (42) is fixedly connected to the middle of the handle cover (4), a storage battery is fixedly connected to the inside of the handle cover (4), the power switch (41) is electrically connected to the storage battery, and the first smoke outlet switch (42) is electrically connected to the power switch (41).

4. The intrinsically safe aerosol spray controller for mining according to claim 3, characterized in that, The bottom of the rod end seat (1) is fixedly connected to a second smoke outlet switch (15), which is electrically connected to a power switch (41).

5. The intrinsically safe aerosol spray controller for mining according to claim 4, characterized in that, The bottom end of the handle cover (4) is provided with a charging interface (43), and a silicone cover (44) is slidably fitted on the inner side of the charging interface (43).

6. The intrinsically safe aerosol spray controller for mining according to claim 5, characterized in that, A heat dissipation copper chamber (71) is fixedly connected to the inner side of the outer shell (7), and a heat pack (72) is fixedly connected to the inner side of the heat dissipation copper chamber (71). The top of the heat dissipation copper chamber (71) abuts against the heating head (11).

7. The intrinsically safe aerosol spray controller for mining according to claim 6, characterized in that, A temperature display (81) is fixedly connected to the top of the outer side of the control panel (8), and the temperature display (81) is electrically connected to the power switch (41).

8. The intrinsically safe aerosol spray controller for mining according to claim 6, characterized in that, A temperature sensor (73) is fixedly connected to the inside of the heat dissipation copper compartment (71), and the temperature sensor (73) is electrically connected to the temperature display (81).

9. The intrinsically safe aerosol spray controller for mining according to claim 6, characterized in that, A pressure gauge (82) is fixedly connected to the bottom of the outer side of the control panel (8), and the pressure gauge (82) is connected to the gas outlet pipe of the gas cylinder (9) through a conduit.

10. The intrinsically safe aerosol spray controller for mining according to claim 1, characterized in that, The heating head (11) has a frustum structure and several through holes are provided on the heating head (11).

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