Intelligent gas control drilling hole sealing and grouting device

Abstract

The utility model provides a kind of intelligent gas management drilling hole sealing grouting device, belong to coal mine gas extraction and hole sealing grouting technical field.The device includes box, and the both sides of box top are equipped with regulating valve and injection port, and injection port bottom end is connected with water tank through pipeline, and water tank left side is connected with solenoid valve through pipeline, and regulating valve left side is equipped with high-pressure pump, and the inside of box is equipped with control mechanism;The utility model carries out structure and function innovation on the basis of conventional mine pneumatic grouting pump, and data interconnection can be realized by mine industrial ring network and ground gas extraction intelligent monitoring and control platform, to realize the real-time perception and dynamic regulation and control of the pressure change of "three plugging two injection" hole sealing section in gas management drilling hole.The device can automatically adjust the start-stop of solenoid valve and high-pressure pump according to pressure abnormal signal caused by ground stress disturbance or hole crack change, timely supplement injection and pressure stabilizing control, effectively prevent gas leakage and maintain hole sealing stability.

Description

Technical Field

[0001] This utility model relates to the field of borehole sealing and gas extraction technology, and in particular to an intelligent gas control borehole sealing grouting device. Background Technology

[0002] Grouting pumps for gas control borehole sealing are indispensable and important equipment in coal mine safety production. Currently, the most widely used type is the mine pneumatic grouting pump. These pumps use compressed air as a power source and have the advantages of small size, light weight, and resistance to damage from overload. Traditional mining pneumatic grouting pumps often struggle to precisely control pressure and flow during the grouting process, leading to uneven or excessive grouting, which severely affects the sealing effect. This can also result in resource waste and environmental pollution at the underground work site. Therefore, there is an urgent need for a new type of grouting device that can achieve real-time monitoring, automatic replenishment, and intelligent pressure stabilization control to improve the efficiency and safety of borehole sealing for gas control. Utility Model Content

[0003] To address the aforementioned problems, this utility model proposes an intelligent borehole sealing grouting device for gas control, which solves the problem that traditional mine pneumatic grouting pumps are difficult to control precisely in terms of pressure and flow, resulting in uneven or excessive grouting, affecting borehole sealing, wasting resources, and polluting the environment.

[0004] To achieve the objectives of this utility model, the following technical solution is provided: an intelligent gas control borehole sealing grouting device, comprising a housing, with a regulating valve and a grouting port respectively installed on the top two sides of the housing. The bottom end of the grouting port is connected to a water tank via a pipe, and the left side of the water tank is connected to a solenoid valve via a pipe. A high-pressure pump is installed on the left side of the regulating valve, and the input end of the high-pressure pump is connected to the left end of the solenoid valve via a pipe. A discharge port is installed on the left side of the top of the regulating valve, and the bottom of the discharge port is connected to the output end of the high-pressure pump via a pipe. A control mechanism is provided inside the housing. The control mechanism includes a pressure transmitter, a fault self-checking module, and an electronic control unit. The pressure transmitter is used to monitor the pressure changes in the sealing section of the grouting circuit in real time. The electronic control unit automatically controls the start and stop of the solenoid valve and the high-pressure pump according to the pressure signal, realizing automatic grout replenishment and pressure stabilization control.

[0005] The fault self-test module is used to monitor the system's operating status and issue an alarm signal when pipeline blockage, air leakage, or abnormal pressure occurs.

[0006] A further improvement is that an oil mist lubricator is fixedly installed at the bottom of the regulating valve, the output end of the oil mist lubricator is connected to the inside of the high-pressure pump through a pipe, and an air inlet is provided at the top of the regulating valve, and the input end of the oil mist lubricator is connected to the bottom end of the air inlet through a pipe.

[0007] A further improvement is that a high-pressure speed interface is installed at the bottom of the water tank, one end of which is connected to the output end of an external grouting pump, and the input end of the grouting pump is connected to the bottom of the grout storage device.

[0008] A further improvement is that a liquid level sensor is fixedly installed at the bottom inside the water tank. The liquid level sensor consists of a float, a guide rod, a magnetic switch or a potentiometer, and is used to detect the liquid level in real time and transmit the signal to the electronic control unit to indicate abnormal liquid level or automatically control liquid replenishment.

[0009] Further improvements include: a pressure gauge is installed on the regulating valve, and an electronic control unit is installed inside the housing. The electronic control unit includes an input interface, a microprocessor (CPU), a memory, and an output interface. The microprocessor (CPU) is used to process the pressure and liquid level signals collected by the sensor and output control commands to the actuator.

[0010] A further improvement is that a set of casters is symmetrically fixedly installed at the bottom of the box, and the outside of the casters is covered with a rubber protective cover to facilitate the movement of the equipment and safe use in the complex environment of the mine.

[0011] The beneficial effects of this invention are as follows: Compared with traditional technologies, the intelligent gas control borehole sealing and grouting device of this invention has significant advantages. Firstly, this device innovates upon the traditional mine-use pneumatic grouting pump by equipping it with an advanced sensor system. This allows it to connect to the surface gas extraction intelligent monitoring and control platform via the mine industrial ring network, enabling real-time monitoring of pressure changes in the "three-plug, two-injection" sealing section within the gas control borehole. This real-time monitoring capability allows the device to quickly respond to borehole perimeter crack development and gas leakage caused by mining disturbances or changes in ground stress.

[0012] Secondly, once a decrease in pressure is detected in the viscous sealing material chamber of the gas control borehole, the device will immediately activate an automatic replenishment mechanism to precisely inject specialized viscous sealing material into the borehole. This material can quickly fill newly formed cracks, thereby restoring and maintaining the borehole's sealing performance, ensuring the stability and safety of the gas control borehole. Its automated and intelligent replenishment method not only improves work efficiency but also significantly reduces the difficulty and error associated with manual operation.

[0013] Compared to traditional manual monitoring and injection methods, the device of this invention significantly improves the efficiency and safety of gas control. Its intelligent and automated operation not only reduces the need for manual intervention and lowers the labor intensity of operators, but also effectively avoids the blind and inefficient extraction problems of traditional gas control drilling through precise control and timely response, ensuring the continuity and stability of gas extraction.

[0014] Furthermore, this device plays a crucial role in improving gas extraction efficiency. Through real-time monitoring and an automatic replenishment mechanism, it effectively eliminates gas leakage in the sealing section of gas control boreholes, enabling more gas to be efficiently extracted from the coal seam. This reduces the risk of gas accumulation and further enhances the safety level of coal mine production. Attached Figure Description

[0015] Figure 1 This is the front view of the present invention; Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0016] The components include: 1. regulating valve; 2. filling port; 3. air pressure gauge; 4. solenoid valve; 5. water tank; 6. high-pressure speed interface; 7. liquid level sensor; 8. air inlet; 9. discharge port; 10. oil mist lubricator; 11. pressure transmitter; 12. fault self-diagnosis module; 13. high-pressure pump; 14. casters; 15. housing. Detailed Implementation

[0017] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.

[0018] according to Figure 1 and 2 As shown, this embodiment proposes an intelligent gas control borehole sealing grouting device, including a housing 15. A regulating valve 1 and a material inlet 2 are respectively installed on the top two sides of the housing 15. The bottom end of the material inlet 2 is connected to a water tank 5 via a pipe. A solenoid valve 4 is connected to the left side of the water tank 5 via a pipe. A high-pressure pump 13 is installed on the left side of the regulating valve 1. The input end of the high-pressure pump 13 is connected to the left end of the solenoid valve 4 via a pipe. A discharge port 9 is installed on the left side of the top of the regulating valve 1. The bottom of the discharge port 9 is connected to the output end of the high-pressure pump 13 via a pipe. A control mechanism is provided inside the housing 15. The solenoid valve 4 controls the flow of liquid in the grouting system, opening or closing according to the instructions of the intelligent control system to achieve automated control of the grouting. The high-pressure pump 13 is the power source of the grouting system, generating high pressure to drive the grouting material to be injected into the borehole through the discharge port and the PU high-pressure pipe. The control mechanism includes a pressure transmitter 11, a fault self-testing module 12, and an electronic control unit. The pressure transmitter 11 is used to monitor the pressure changes in the sealing section of the grouting circuit in real time. The electronic control unit automatically controls the start and stop of the solenoid valve 4 and the high-pressure pump 13 according to the pressure signal to realize automatic grouting replenishment and pressure stabilization control. The fault self-testing module 12 is used to monitor the system operating status and issue an alarm signal when pipeline blockage, air leakage, or abnormal pressure occurs. When a fault occurs in the grouting system, the fault self-testing module 12 can automatically detect and locate the fault point, and provide warnings to the operator through the display screen, alarm light, or by transmitting the warning to the intelligent control system, thereby improving the efficiency of fault handling.

[0019] The regulating valve 1 is located in an important position in the grouting system and is used to regulate the flow rate and pressure of grouting to ensure the stability and accuracy of the grouting process. The injection port 2 is the inlet of the grouting material, through which grouting materials such as cement slurry and viscous sealing materials are added to the grouting system.

[0020] Air inlet 8 provides compressed air to the grouting system and is a key part of the pneumatic grouting system, ensuring sufficient power during the grouting process.

[0021] The discharge port 9 feeds cement slurry, viscous sealing material and other grouting materials into the borehole sealing section through a PU high-pressure pipe, ensuring that the grouting materials can be injected into the borehole evenly and accurately.

[0022] The pressure transmitter 11 monitors the pressure changes inside the grouting system in real time and converts the pressure signal into an electrical signal, which is then transmitted to the intelligent control system to provide feedback on the pressure status of the viscous chamber in the sealing section, so as to seal the newly formed cracks in a timely manner.

[0023] An oil mist lubricator 10 is fixedly installed at the bottom of the regulating valve 1. The output end of the oil mist lubricator 10 is connected to the inside of the high-pressure pump 13 through a pipe. An air inlet 8 is also provided at the top of the regulating valve 1. The input end of the oil mist lubricator 10 is connected to the bottom end of the air inlet 8 through a pipe. The oil mist lubricator 10 is used to add lubricating oil to the pneumatic system to reduce the wear of pneumatic components and extend their service life.

[0024] The bottom of the water tank 5 is equipped with a high-pressure fast interface 6. One end of the high-pressure fast interface 6 is connected to the output end of the external grouting pump, and the input end of the grouting pump is connected to the bottom of the grout storage device. The water tank 5 is used to store cement grout, viscous sealing materials, etc. required for grouting. It is connected to the grouting system through pipelines to provide a stable source of liquid for grouting. The high-pressure fast interface 6 is used to connect the grouting pump and the external grout storage device to achieve rapid connection and stable delivery of grouting materials.

[0025] A liquid level sensor 7 is fixedly installed at the bottom inside the water tank 5. The liquid level sensor 7 consists of a float, a guide rod, a magnetic switch or a potentiometer. It is used to detect the liquid level in real time and transmit the signal to the electronic control unit to indicate abnormal liquid level or automatically control liquid replenishment. The float is usually a hollow sphere or cylinder. The liquid level sensor 7 monitors the liquid level in the water tank in real time. The float-type liquid level sensor changes the state of the magnetic switch by the displacement of the float and outputs a switch signal. When the liquid level is lower than the set value, it automatically sends a signal to the intelligent control system to remind the operator to add liquid in time.

[0026] The regulating valve 1 is equipped with a pressure gauge 3. The housing 15 is equipped with an electronic control unit. The electronic control unit includes an input interface, a microprocessor CPU, a memory, and an output interface. The microprocessor (CPU) is used to process the pressure and liquid level signals collected by the sensor and output control commands to the actuator. The pressure gauge 3 displays the pressure inside the grouting system, helping the operator monitor the pressure changes during the grouting process.

[0027] A set of casters 14 is symmetrically fixedly installed at the bottom of the housing 15. The casters 14 are covered with rubber protective sleeves to facilitate equipment movement and safe use in the complex environment of the mine. The casters 14 provide the device with movement and steering functions, enabling it to move easily at different positions and angles, facilitating rapid deployment and operation in the mine.

[0028] This intelligent grouting device for gas control borehole sealing achieves precise control of the grouting process through an intelligent control system. Operators set grouting parameters and plans through the intelligent control system's interface. The intelligent control system dynamically adjusts the grouting parameters based on preset parameters and real-time borehole data (such as borehole gas concentration and pressure changes in the sealing section). Actuators such as regulating valve 1 and solenoid valve 4 precisely control the grouting device's start / stop, output flow rate, pressure, and speed according to the instructions of the intelligent control system. Simultaneously, the grouting effect monitoring system (pressure transmitter) monitors the grouting process and effect in real time, providing a scientific basis for timely grout replenishment in the gas control borehole sealing section. Throughout the grouting process, the fault self-diagnosis module automatically detects and locates fault points, providing warnings to operators via the display screen, alarm lights, or by transmitting information to the intelligent control system, thus improving the efficiency of fault handling.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An intelligent gas control borehole sealing grouting device, comprising a housing (15), characterized in that: The top two sides of the box (15) are respectively equipped with a regulating valve (1) and a filling port (2). The bottom end of the filling port (2) is connected to a water tank (5) through a pipe. The left side of the water tank (5) is connected to a solenoid valve (4) through a pipe. A high-pressure pump (13) is installed on the left side of the regulating valve (1). The input end of the high-pressure pump (13) is connected to the left end of the solenoid valve (4) through a pipe. A discharge port (9) is installed on the left side of the top of the regulating valve (1). The bottom of the discharge port (9) is connected to the output end of the high-pressure pump (13) through a pipe. The box (15) is equipped with a control mechanism inside. The control mechanism includes a pressure transmitter (11), a fault self-test module (12), and an electronic control unit. The pressure transmitter (11) is used to monitor the pressure change of the sealing section in the grouting circuit in real time. The electronic control unit automatically controls the start and stop of the solenoid valve (4) and the high-pressure pump (13) according to the pressure signal to realize automatic grouting and pressure stabilization control. The fault self-test module (12) is used to monitor the system's operating status and issue an alarm signal when pipeline blockage, air leakage, or abnormal pressure occurs.

2. The intelligent gas control borehole sealing grouting device according to claim 1, characterized in that: An oil mist lubricator (10) is fixedly installed at the bottom of the regulating valve (1). The output end of the oil mist lubricator (10) is connected to the inside of the high-pressure pump (13) through a pipe. An air inlet (8) is provided at the top of the regulating valve (1). The input end of the oil mist lubricator (10) is connected to the bottom end of the air inlet (8) through a pipe.

3. The intelligent gas control borehole sealing grouting device according to claim 1, characterized in that: The bottom of the water tank (5) is equipped with a high-pressure speed interface (6). One end of the high-pressure speed interface (6) is connected to the output end of the external grouting pump, and the input end of the grouting pump is connected to the bottom of the grout storage device to realize the rapid supply and replacement of grout.

4. The intelligent gas control borehole sealing grouting device according to claim 1, characterized in that: A liquid level sensor (7) is fixedly installed at the bottom inside the water tank (5). The liquid level sensor (7) consists of a float, a guide rod, a magnetic switch or a potentiometer. It is used to detect the liquid level in real time and transmit the signal to the electronic control unit to indicate abnormal liquid level or automatically control liquid replenishment.

5. The intelligent gas control borehole sealing grouting device according to claim 1, characterized in that: The regulating valve (1) is equipped with a pressure gauge (3), and the inside of the housing (15) is equipped with an electronic control unit. The electronic control unit includes an input interface, a microprocessor (CPU), a memory and an output interface. The microprocessor (CPU) is used to process the pressure and liquid level signals collected by the sensor and output control commands to the actuator.

6. The intelligent gas control borehole sealing grouting device according to claim 1, characterized in that: The bottom of the box (15) is symmetrically fixed with a caster wheel (14), and the outside of the caster wheel (14) is wrapped with a rubber protective sleeve to facilitate equipment movement and safe use in the complex environment of the mine.

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