Novel underground roadway air leakage prevention material spraying device

Abstract

The utility model discloses a novel air-leakage-preventing material spraying device for an underground roadway. The novel air-leakage-preventing material spraying device comprises a spraying gun mechanism, a material storage mechanism and a control mechanism. The material storage mechanism is used for storing the air-leakage-proof material, pushing the air-leakage-proof material to be conveyed to the spray gun mechanism by utilizing high-pressure gas, ensuring the stability of pushing force and keeping the distribution uniformity of each component of the air-leakage-proof material through a stirrer; the spray gun mechanism is used for mixing the conveyed air leakage prevention material with high-pressure gas and then spraying the mixture to the surface needing to be sprayed, and the spraying effect is guaranteed in a gas-liquid mixing mode; the control mechanism can control the rotating speed of the stirrer and control the LED curing lamp, and illumination curing of the sprayed surface is achieved. Therefore, the pressure during spraying can be kept stable, and meanwhile, the sprayed sealing material is cured quickly, so that the spraying efficiency is effectively improved on the premise of ensuring the spraying quality, and finally, the underground working safety of a coal mine is improved.

Description

Technical Field

[0001] This utility model relates to a novel underground roadway anti-leakage material spraying device, belonging to the field of gas extraction technology. Background Technology

[0002] Underground borehole gas extraction is the most effective and fundamental way to solve coal mine gas safety problems, and the quality of borehole sealing is key to improving the gas extraction concentration. Currently, various sealing materials and corresponding sealing methods have been applied to the internal sealing of underground gas extraction boreholes. However, the external fractures of gas extraction boreholes are widespread, serving as the main channel for air to enter the borehole from the roadway. Relying solely on internal sealing of gas extraction boreholes cannot maintain a high borehole sealing quality for an extended period. Therefore, it is necessary to use spraying equipment to apply sealing materials to the roadway walls of the gas extraction drilling site to further improve the borehole sealing quality. However, existing spraying equipment suffers from unstable spraying pressure and a long curing time for the sealant, resulting in low spraying efficiency.

[0003] Therefore, in view of the shortcomings of existing spraying equipment, how to provide a new spraying device that can maintain stable pressure during spraying and allow the sealing material to solidify quickly after spraying, thereby effectively improving spraying efficiency while ensuring spraying quality, and ultimately improving the safety of underground coal mine work, is the research direction required by this utility model. Summary of the Invention

[0004] To address the problems existing in the prior art, this utility model provides a novel underground roadway air-leakage prevention material spraying device, which can effectively solve the above problems.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a novel underground roadway anti-leakage material spraying device, including a spray gun mechanism, a material storage mechanism and a control mechanism;

[0006] The storage mechanism includes a base, a storage tank, and a stirrer. The storage tank is mounted on the base and is used to store air-proof material. The stirrer is installed inside the storage tank and is used to stir the air-proof material inside the tank. The storage tank has a discharge port at the bottom and a removable top cover. The top cover has an air inlet and an air outlet. The air inlet is equipped with a pressure regulating valve to regulate the gas pressure entering the storage tank. The air outlet is equipped with an exhaust control valve to discharge the gas inside the storage tank.

[0007] The spray gun mechanism includes a nozzle, a discharge pipe, and an air pipe. One end of the discharge pipe is connected to the nozzle inlet, and the other end is connected to the discharge port, for transporting the air-proof material from the storage tank to the nozzle. One end of the air pipe is connected to the nozzle inlet, and the other end is connected to an air source, for supplying high-pressure gas to the nozzle and mixing it with the air-proof material before spraying it out from the nozzle outlet. A first control valve is installed on the discharge pipe to control the opening and closing of the discharge pipe. A second control valve is installed on the nozzle to control the opening and closing of the nozzle outlet.

[0008] The control mechanism includes a control box, a display, an LED curing lamp, and a control button assembly. The control box is mounted on a base via a bracket. The display, LED curing lamp, and control button assembly are all mounted on the surface of the control box. The LED curing lamp is used to accelerate the curing of the surface after the air-proof material is sprayed. The control button assembly is used to control the opening and closing of the LED curing lamp and the stirrer, and to adjust the speed of the stirrer. The adjusted speed value is displayed on the display.

[0009] Furthermore, the storage tank is equipped with a pressure sensor to monitor the air pressure inside the tank and display it on a monitor. This component allows operators to promptly open the exhaust control valve to release gas from the tank when the air pressure inside becomes too high, until it drops to a safe level before closing, thus ensuring the safety of the spraying process.

[0010] Furthermore, the pressure regulating valve is a mechanical automatic pressure regulating valve, which consists of a pressure-sensing diaphragm, a spring, and a valve core. It is installed at the air inlet of the storage tank and its gas inlet is connected to the underground compressed air pipeline. During the spraying process, when the pressure inside the storage tank decreases due to paint consumption, the pressure-sensing diaphragm is displaced under the pressure difference between the pressure inside the tank and the external air pressure, which drives the valve core to move, increasing the opening of the air inlet and allowing more underground air pressure to enter the storage tank, thereby increasing the pressure inside the tank. Conversely, when the pressure inside the tank is too high, the diaphragm moves in the opposite direction, reducing the opening of the air inlet and lowering the pressure inside the tank, thus ensuring stable spraying pressure.

[0011] Furthermore, the agitator includes a baffle plate, a stirring motor, and stirring blades. The baffle plate is installed inside the storage tank to divide it into a storage chamber and a motor placement chamber. The stirring motor is installed in the motor placement chamber, and the output shaft of the stirring motor extends into the storage chamber. The stirring blades are installed on the surface of the output shaft. When the stirring motor is working, it can drive the stirring blades to rotate and stir the air-proof material in the storage chamber.

[0012] Furthermore, the bracket is a telescopic bracket used to adjust the irradiation position of the LED curing lamp. This not only allows for light curing of different spraying locations, but also enables the bracket to be adjusted to different heights for ease of use by personnel.

[0013] Furthermore, the base is equipped with casters at the bottom and a pusher at the top of the support. This design facilitates the movement of the entire device.

[0014] Furthermore, the control button group includes a stirrer switch, an LED curing lamp switch, and a stirrer adjustment button. The stirrer switch and the LED curing lamp switch are used to control the on / off connection of the stirrer and the LED curing lamp to the power supply, respectively; the stirrer adjustment button is used to adjust the speed of the stirrer.

[0015] Compared with existing technologies, this utility model combines a spray gun mechanism, a storage mechanism, and a control mechanism. The storage mechanism stores the leak-proof material and uses underground compressed air pipelines to provide power to the storage mechanism to push the leak-proof material to the spray gun mechanism, ensuring the stability of the pushing force. Simultaneously, its internal agitator maintains the uniform distribution of the components of the leak-proof material. The spray gun mechanism mixes the delivered leak-proof material with high-pressure gas and sprays it onto the surface to be coated, ensuring the coating effect through gas-liquid mixing. The control mechanism controls the rotation speed of the agitator and the LED curing lamp to achieve light curing of the coated surface. Through the above process, this utility model maintains stable pressure during spraying and allows the sealing material to cure quickly after spraying, thereby effectively improving spraying efficiency while ensuring coating quality, ultimately enhancing the safety of underground coal mine work. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the control mechanism in this utility model;

[0018] Figure 3 This is a cross-sectional view of the storage tank in this utility model;

[0019] Figure 4 This is a schematic diagram of the mechanical automatic pressure regulating valve in this utility model.

[0020] In the diagram: 1. Base, 2. Telescopic bracket, 3. Display, 4. Control box, 5. Push handle, 6. LED curing lamp, 7. Air inlet, 8. Air outlet, 9. Mechanical automatic pressure regulating valve, 10. Exhaust control valve, 11. Top cover, 12. Storage tank, 13. Discharge pipe, 14. Air pipe, 15. First control valve, 16. Nozzle, 17. Second control valve, 18. Agitator switch, 19. LED curing lamp switch, 20. Agitator adjustment button, 21. Agitator motor, 22. Agitator blades, 23. Pressure sensing diaphragm, 24. Spring, 25. Valve core, 26. Gas inlet. Detailed Implementation

[0021] The present invention will be further described below.

[0022] like Figure 1 As shown, this utility model includes a spray gun mechanism, a material storage mechanism, and a control mechanism;

[0023] The storage mechanism includes a base 1, a storage tank 12, and a stirrer. The storage tank 12 is mounted on the base 1 and is used to store airtight materials. Figure 3 As shown, a stirrer is installed inside the storage tank 12 to stir the air-proof material inside the tank. The stirrer includes a partition, a stirring motor 21, and stirring blades 22. The partition is installed inside the storage tank 12 to divide it into a storage chamber and a motor placement chamber. The stirring motor 21 is installed in the motor placement chamber, and the output shaft of the stirring motor 21 extends into the storage chamber. The stirring blades 22 are mounted on the surface of the output shaft. When the stirring motor 21 is working, it can drive the stirring blades 22 to rotate and stir the air-proof material in the storage chamber. The storage tank 12 has a discharge port at the bottom and a detachable top cover 11 on the top cover 11. The top cover 11 has an air inlet 7 and an air outlet 8. The air inlet 7 is equipped with a pressure regulating valve to regulate the gas pressure entering the storage tank 12. The air outlet 8 is equipped with an exhaust control valve 10 to discharge the gas in the storage tank 12.

[0024] The spray gun mechanism includes a nozzle 16, a discharge pipe 13, and an air pipe 14. One end of the discharge pipe 13 is connected to the inlet of the nozzle 16, and the other end is connected to the discharge port, for transporting the air-proof material from the storage tank 12 to the nozzle 16. One end of the air pipe 14 is connected to the inlet of the nozzle 16, and the other end is connected to an air source, for supplying high-pressure gas to the nozzle 16 and mixing it with the air-proof material before spraying it out from the nozzle 16 outlet. A first control valve 15 is installed on the discharge pipe 13 to control the opening and closing of the discharge pipe 13. A second control valve 17 is installed on the nozzle 16 to control the opening and closing of the nozzle 16 outlet.

[0025] like Figure 2 As shown, the control mechanism includes a control box 4, a display 3, an LED curing lamp 6, and a control button group. The control box 4 is mounted on the base 1 via a bracket. The display 3, LED curing lamp 6, and control button group are all mounted on the surface of the control box 4. The LED curing lamp 6 is used to accelerate the curing of the surface after the air-proof material is sprayed. The control button group is used to control the opening and closing of the LED curing lamp 6 and the stirrer, and to adjust the speed of the stirrer, displaying the adjusted speed value on the display 3. The control button group includes a stirrer switch 18, an LED curing lamp switch 19, and a stirrer adjustment button 20. The stirrer switch 18 and the LED curing lamp switch 19 are used to control the connection and disconnection of the stirrer and the LED curing lamp 6 with the power supply, respectively. The stirrer adjustment button 20 is used to adjust the speed of the stirrer.

[0026] As an improvement of this utility model, the storage tank 12 is equipped with a pressure sensor to monitor the air pressure inside the storage tank 12 and display it on the display 3. With this component, when the air pressure inside the storage tank 12 is too high, the operator can promptly open the exhaust control valve 10 to release the gas from the storage tank 12 until it drops to a safe level and then closes, thereby ensuring the safety of the spraying process. The pressure regulating valve is a mechanical automatic pressure regulating valve 9, such as... Figure 4 As shown, the existing structure consists of a pressure-sensing diaphragm 23, a spring 24, and a valve core 25. It is installed at the air inlet 7 of the storage tank 12, and its gas inlet 26 is connected to the underground compressed air pipeline. During the spraying process, when the pressure inside the storage tank 12 decreases due to paint consumption, the pressure-sensing diaphragm is displaced under the pressure difference between the pressure inside the tank and the external air pressure, which drives the valve core 25 to move, increasing the opening of the air inlet 7, allowing more underground air pressure to enter the storage tank 12 and increasing the pressure inside the tank. Conversely, when the pressure inside the tank is too high, the diaphragm moves in the opposite direction, reducing the opening of the air inlet 7, reducing the pressure inside the tank, and ensuring stable spraying pressure.

[0027] As another improvement of this utility model, the bracket is a telescopic bracket 2, used to adjust the irradiation position of the LED curing lamp 6. This not only allows for light curing of different spraying positions, but also allows for adjustment of the height according to operational needs, facilitating user operation. The base 1 is equipped with casters at the bottom, and a push handle 5 is mounted on the top of the bracket. This design facilitates the overall movement of the device.

[0028] During operation, first open the top cover 11, put the air-proof material into the storage tank 12, and then press the top cover 11 and the storage tank 12 tightly to seal them. Start the agitator using the control button group and adjust its speed to continuously agitate the air-proof material in the tank. If the air-proof material is not agitated due to gravity, the internal material will settle, resulting in uneven distribution and affecting the subsequent spraying effect. Connect the air pipe 14 and the air inlet 7 to the underground compressed air pipeline. When starting spraying, first open the second control valve 17 to allow the gas in the air pipe 14 to be sprayed onto the surface to be sprayed through the nozzle 16, using high-pressure airflow to remove dust from the surface. Then open the first control valve 15, at which point the high-pressure gas entering through the air inlet 7... The air-proof material enters the nozzle 16 through the discharge pipe 13 from the discharge port. After mixing with the high-pressure gas entering through the air pipe 14, it is sprayed onto the surface to be coated under air pressure. During the coating process, the mechanical automatic pressure regulating valve 9 can automatically adjust the valve opening size according to the air pressure in the tank, thereby automatically adjusting the air intake. This can effectively ensure the stability of the air-proof material delivery during the coating process. In addition, during the coating process, the operator can adjust the speed of the agitator to ensure the uniformity of the air-proof material mixing in the tank. After the air-proof material is coated, the control button group turns on the LED curing lamp 6 to irradiate and cure the coated tunnel wall, thereby effectively improving the coating and curing efficiency.

[0029] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A novel underground roadway anti-leakage material spraying device, characterized in that, This includes the spray gun mechanism, the material storage mechanism, and the control mechanism; The storage mechanism includes a base, a storage tank, and a stirrer. The storage tank is mounted on the base and is used to store air-proof material. The stirrer is installed inside the storage tank and is used to stir the air-proof material inside the tank. The storage tank has a discharge port at the bottom and a removable top cover. The top cover has an air inlet and an air outlet. The air inlet is equipped with a pressure regulating valve to regulate the gas pressure entering the storage tank. The air outlet is equipped with an exhaust control valve to discharge the gas inside the storage tank. The spray gun mechanism includes a nozzle, a discharge pipe, and an air pipe. One end of the discharge pipe is connected to the nozzle inlet, and the other end is connected to the discharge port, for transporting the air-proof material from the storage tank to the nozzle. One end of the air pipe is connected to the nozzle inlet, and the other end is connected to an air source, for supplying high-pressure gas to the nozzle and mixing it with the air-proof material before spraying it out from the nozzle outlet. A first control valve is installed on the discharge pipe to control the opening and closing of the discharge pipe. A second control valve is installed on the nozzle to control the opening and closing of the nozzle outlet. The control mechanism includes a control box, a display, an LED curing lamp, and a control button assembly. The control box is mounted on a base via a bracket. The display, LED curing lamp, and control button assembly are all mounted on the surface of the control box. The LED curing lamp is used to accelerate the curing of the surface after the air-proof material is sprayed. The control button group is used to control the opening and closing of the LED curing lamp and the stirrer, and to adjust the speed of the stirrer, and the adjusted speed value is displayed on the display.

2. The novel underground roadway air-leakage prevention material spraying device according to claim 1, characterized in that, The storage tank is equipped with a pressure sensor to monitor the air pressure inside the tank and display it on a monitor.

3. The novel underground roadway air-leakage prevention material spraying device according to claim 1, characterized in that, The pressure regulating valve is a mechanical automatic pressure regulating valve.

4. The novel underground roadway air-leakage prevention material spraying device according to claim 1, characterized in that, The agitator includes a baffle plate, a stirring motor, and stirring blades. The baffle plate is installed inside the storage tank to divide it into a storage chamber and a motor placement chamber. The stirring motor is installed in the motor placement chamber, and the output shaft of the stirring motor extends into the storage chamber. The stirring blades are installed on the surface of the output shaft. When the stirring motor is working, it can drive the stirring blades to rotate and stir the air-proof material in the storage chamber.

5. The novel underground roadway air-leakage prevention material spraying device according to claim 1, characterized in that, The bracket is a telescopic bracket used to adjust the irradiation position of the LED curing lamp.

6. The novel underground roadway air-leakage prevention material spraying device according to claim 1, characterized in that, The base is equipped with movable rollers at the bottom and a pusher at the top of the bracket.

7. The novel underground roadway anti-leakage material spraying device according to claim 1, characterized in that, The control button group includes a stirrer switch, an LED curing lamp switch, and a stirrer adjustment button. The stirrer switch and the LED curing lamp switch are used to control the on / off connection of the stirrer and the LED curing lamp to the power supply, respectively. The mixer adjustment button is used to adjust the mixer speed.

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