Mining thin-jet pneumatic equipment

Abstract

The utility model discloses mining thin-jet pneumatic equipment, and relates to the technical field of mining equipment. The thin spraying device comprises a bottom plate, and a thin spraying mechanism is arranged on one side of the bottom plate. The thin-spraying mechanism is completely pneumatically driven, the potential safety hazard of electric equipment under a well is avoided, the thin-spraying mechanism adapts to special working environments under the mine well, the problem of insufficient air pressure in thin-spraying operation under the well is solved through innovative combination of the double-cylinder pressurizing type pneumatic compressor and the air pressure compensation adjusting assembly, and the working efficiency of the thin-spraying mechanism is improved. According to the asynchronous linkage compression principle, the double-cylinder structure can achieve secondary pressurization when the underground basic air pressure is low, even if the air source pressure is reduced to the critical value that conventional equipment cannot be started, the jet power can be stably maintained within the range required by the technology through pressure difference compensation between cylinder bodies, and the integrated air pressure compensation adjusting assembly can be used for adjusting the air pressure. Air pressure can be automatically supplemented when it is detected that the air pressure is lower than a set threshold value, and the material spraying uniformity and continuity can be stably controlled.

Description

Technical Field

[0001] This utility model belongs to the technical field of mining equipment, and in particular relates to a thin-puff jet propulsion device for mining. Background Technology

[0002] In mining operations, thin-layer spraying is one of the core procedures for ensuring underground construction safety and roadway structural stability. Its application spans the entire process of mine development, tunneling, and mining. By using specialized equipment to spray a slurry made of cement, aggregates, quick-setting agents, etc., in a specific ratio onto the surface of the surrounding rock of the roadway under high pressure, a continuous and dense protective layer can be quickly formed. This protective layer can not only immediately seal the cracks in the surrounding rock and prevent rock weathering and water erosion, but also work together with the surrounding rock to share the external pressure, delay roadway deformation, and buy valuable time for subsequent support operations.

[0003] However, traditional mining spraying equipment mostly relies on electric or conventional pneumatic modes. The core contradiction of electric equipment lies in the balance between safety and flexibility. Its operation depends on a stable power supply, but the high humidity and dust environment underground will accelerate the aging of circuits. Exposed wiring ports may cause electric sparks if not handled carefully. In areas where flammable and explosive gases such as methane are concentrated, this is undoubtedly a huge safety hazard. Conventional pneumatic equipment often suffers from insufficient air pressure due to the complex underground environment, which makes it impossible to complete the spraying operation stably and efficiently, affecting the construction quality and progress. Therefore, there is an urgent need for a mining spraying pneumatic equipment that can adapt to the underground environment and overcome the problem of insufficient air pressure.

[0004] To address these issues, we provide a thin-pitch jet propulsion device for mining. Utility Model Content

[0005] The purpose of this utility model is to provide a thin-puff jet propulsion device for mining, which solves the problem of insufficient air pressure in existing thin-puff jet propulsion devices for mining by using a combination of a low-pressure cylinder, a high-pressure cylinder and an air pressure tank.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a thin-jet spraying device for mining, comprising a base plate, a thin-jet spraying mechanism on one side of the base plate, and a compressor located on one side of the base plate. A low-pressure cylinder is fixedly connected to the top of the compressor, and a high-pressure cylinder is fixedly connected to one side of the low-pressure cylinder via a pipe fitting. The bottom of the high-pressure cylinder is fixedly connected to the compressor. A pneumatic motor is fixedly connected to one side of the compressor via a pipe fitting, and a pneumatic delivery pump is fixedly connected to the other side of the pneumatic motor. A storage tank is fixedly connected to the top of one side of the pneumatic delivery pump, and the bottom of the storage tank is fixedly connected to the base plate. A fixing block is fixedly connected to the other side of the pneumatic delivery pump via a pipe fitting, and a spray gun is movably connected to the top of the fixing block. A gas supply pipe is fixedly connected to one side of the fixed block, and the other end of the gas supply pipe is fixedly connected to the compressor. A pressure tank is provided on the other side of the storage tank, and one side of the pressure tank is fixedly connected to the gas supply pipe through a pipe fitting. A specially designed pressure boosting piston is provided inside the high-pressure cylinder. The piston and the cylinder body are sealed with wear-resistant seals to ensure the pressure boosting effect. The compressor is equipped with a protective shell, which has dustproof and impact-proof functions and can adapt to the harsh underground environment. The storage tank is made of stainless steel and the inner wall of the tank is treated with an anti-stick coating to facilitate the smooth flow of materials. A mixing chamber is opened in the inner cavity of the fixed block so that the high-pressure gas and materials can be fully mixed in the chamber. A pneumatic motor is used to control the pneumatic conveying pump so that it can accurately control the material conveying volume.

[0008] The present invention is further configured such that mounting plates are fixedly connected to both sides of the top of the compressor, and wheels are movably connected to both sides of the mounting plates. The mounting plates and wheels provide the compressor with significant mobility and operational flexibility.

[0009] The present invention is further provided with a handle on the other side of the low-pressure cylinder. The bottom sides of the handle are fixedly connected to the compressor. There are two handles, which are symmetrically distributed on the top sides of the compressor, providing a convenient point of force for the operator.

[0010] The present invention is further configured such that a pressure sensor is fixedly connected to the top of the gas delivery pipe, and an intelligent regulating valve is provided on one side of the pressure sensor. The bottom of the intelligent regulating valve is fixedly connected to the pipe fitting. The pressure sensor is used to detect whether the gas pressure in the gas delivery pipe is stable. If the gas pressure fluctuates, it will control the intelligent regulating valve to open, so that the high-pressure gas pre-stored in the pressure tank can flow into the gas delivery pipe, ensuring the stability of the gas pressure of the entire pneumatic system.

[0011] The present invention is further configured such that an air inlet pipe is fixedly connected to one side of the pressure tank, and a support rod is fixedly connected to the bottom of the pressure tank. The air inlet pipe provides a direct channel for supplying air to the pressure tank, while the support rod keeps the pressure tank away from the ground, which can reduce the direct erosion and wear of the tank body by the damp ground or gravel in the well.

[0012] The present invention is further configured such that a first flange is fixedly connected to the top of the fixing block, and a second flange is connected to the first flange by bolts. The top of the second flange is fixedly connected to the spray gun. The arrangement of the first flange and the second flange allows for quick replacement of different models of spray guns to suit different operational needs, simply by removing the bolts.

[0013] The present invention is further configured such that a button is provided on the top of the second flange, one side of which is movably connected to the spray gun. The button is pneumatically controlled and can start and stop the spraying operation by controlling the gas flow.

[0014] The present invention is further provided that a sealing gasket is provided at the bottom of the second flange, and the bottom of the sealing gasket is fixedly connected to the first flange. The sealing gasket can maintain a good sealing state by means of its own elastic compensation ability, effectively preventing high pressure materials from leaking from the connection between the first flange and the second flange during the transportation process.

[0015] The present invention has the following beneficial effects.

[0016] 1. This utility model's thin-spray mechanism is entirely pneumatically driven, avoiding the electrical safety hazards of electric equipment underground. It adapts to the special working environment of underground mines. The innovative combination of a dual-cylinder booster pneumatic compressor and a pressure compensation and adjustment component solves the problem of insufficient air pressure in underground thin-spray operations. The dual-cylinder structure, through the asynchronous linkage compression principle, can achieve secondary pressurization when the basic air pressure underground is low. Even if the air source pressure drops to the critical value that conventional equipment cannot start, the spraying power can still be stably maintained within the range required by the pressure difference between the cylinders. The integrated pressure compensation and adjustment component can automatically supplement the air pressure when it detects that the air pressure is lower than the set threshold, which can stably control the uniformity and continuity of material spraying and reduce spraying interruptions and uneven material accumulation caused by air pressure problems.

[0017] 2. The design of the replaceable nozzle and material conveying adjustment structure of this utility model allows the equipment to flexibly adapt to different thin-layer spraying operation requirements. The material conveying adjustment structure can flexibly adjust the material supply speed and ratio. With different nozzles, it can meet the rapid accumulation requirements of thick-layer protection, as well as achieve precise control of thin-layer coverage. It can also adjust the material ratio for different geological conditions such as soft rock and water seepage, which greatly improves the versatility of the equipment. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 This is a three-dimensional view of a thin-puff jet propulsion device for mining.

[0020] Figure 2 This is a three-dimensional view of the thin-jet spraying mechanism in a mining thin-jet spraying device.

[0021] Figure 3 This is a three-dimensional view of a pressure tank in a thin-pneumatic jet propulsion device for mining.

[0022] Figure 4 This is an enlarged view of point A in a thin-puff jet propulsion device for mining.

[0023] In the attached diagram: 1. Base plate; 2. Thin spray mechanism; 201. Compressor; 202. Low-pressure cylinder; 203. High-pressure cylinder; 204. Pneumatic motor; 205. Pneumatic delivery pump; 206. Storage tank; 207. Fixing block; 208. Spray gun; 209. Air supply pipe; 210. Pressure tank; 3. Mounting plate; 4. Wheel; 5. Handle; 6. Air pressure sensor; 7. Intelligent regulating valve; 8. Air inlet pipe; 9. Support rod; 10. First flange; 11. Second flange; 12. Button; 13. Sealing gasket. Detailed Implementation

[0024] The technical solutions of the present invention will be described below with reference to the accompanying drawings of the embodiments of the present invention. The described embodiments are only some embodiments of the present invention, and not all embodiments.

[0025] Example 1

[0026] Please see Figure 1-4 This utility model relates to a thin-jet spraying device for mining, comprising a base plate 1, a thin-jet mechanism 2 disposed on one side of the base plate 1, the thin-jet mechanism 2 including a compressor 201 located on one side of the base plate 1, a low-pressure cylinder 202 fixedly connected to the top of the compressor 201, a high-pressure cylinder 203 fixedly connected to one side of the low-pressure cylinder 202 via a pipe fitting, the bottom of the high-pressure cylinder 203 fixedly connected to the compressor 201, a pneumatic motor 204 fixedly connected to one side of the compressor 201 via a pipe fitting, and a pneumatic conveyor fixedly connected to the other side of the pneumatic motor 204. Pump 205, pneumatic delivery pump 205 has a storage tank 206 fixedly connected to the top of one side, and the bottom of storage tank 206 is fixedly connected to the base plate 1. On the other side of pneumatic delivery pump 205, a fixing block 207 is fixedly connected through a pipe fitting. A spray gun 208 is movably connected to the top of fixing block 207. An air supply pipe 209 is fixedly connected to one side of fixing block 207. The other end of air supply pipe 209 is fixedly connected to compressor 201. A pressure tank 210 is provided on the other side of storage tank 206. One side of pressure tank 210 is fixedly connected to air supply pipe 209 through a pipe fitting.

[0027] Specifically: The high-pressure cylinder 203 is equipped with a specially designed booster piston, and the piston and cylinder are sealed with wear-resistant seals to ensure the boosting effect. The compressor 201 is equipped with a protective shell, which has dustproof and impact-proof functions and can adapt to the harsh underground environment. The storage tank 206 is made of stainless steel and the inner wall of the tank is treated with an anti-stick coating to facilitate the smooth flow of materials. The fixed block 207 has a mixing chamber in its inner cavity, which allows the high-pressure gas and materials to be fully mixed in the chamber. The pneumatic motor 204 is used to control the pneumatic conveying pump 205, so that it can accurately control the material conveying volume.

[0028] Example 2

[0029] Please see Figure 1-4 Based on Embodiment 1, mounting plates 3 are fixedly connected to both sides of the top of compressor 201, and wheels 4 are movably connected to both sides of mounting plates 3. A handle 5 is provided on the other side of low-pressure cylinder 202. Both sides of the bottom of handle 5 are fixedly connected to compressor 201. A pressure sensor 6 is fixedly connected to the top of air pipe 209. An intelligent regulating valve 7 is provided on one side of pressure sensor 6. The bottom of intelligent regulating valve 7 is fixedly connected to pipe fitting. An air inlet pipe 8 is fixedly connected to one side of pressure tank 210. A support rod 9 is fixedly connected to the bottom of pressure tank 210. A first flange 10 is fixedly connected to the top of fixing block 207. A second flange 11 is bolted to the first flange 10. The top of the second flange 11 is fixedly connected to spray gun 208. A button 12 is provided on the top of the second flange 11. One side of button 12 is movably connected to spray gun 208. A sealing gasket 13 is provided at the bottom of the second flange 11. The bottom of sealing gasket 13 is fixedly connected to the first flange 10.

[0030] Specifically: the mounting plate 3 and wheels 4 significantly improve the mobility and operational flexibility of the compressor 201; two handles 5 are symmetrically distributed on both sides of the top of the compressor 201, providing operators with a convenient point of leverage; the air pressure sensor 6 detects whether the air pressure in the air supply pipe 209 is stable; if there are fluctuations in air pressure, it will control the intelligent regulating valve 7 to open, allowing the high-pressure gas pre-stored in the pressure tank 210 to flow into the air supply pipe 209, ensuring stable air pressure throughout the pneumatic system; and the air inlet pipe 8 provides a direct channel for supplying air to the pressure tank 210. The support rod 9 keeps the pressure tank 210 away from the ground, reducing direct erosion and wear of the tank by damp ground or gravel underground. The first flange 10 and the second flange 11 allow for quick replacement of different models of spray guns 208 to suit different operational needs, simply by removing the bolts. The button 12 is pneumatically controlled, enabling the start and stop of spraying operations by controlling the gas flow. The sealing gasket 13 maintains a good seal due to its elasticity, effectively preventing high-pressure materials from leaking from the connection between the first flange 10 and the second flange 11 during transport.

[0031] The working principle of this utility model is as follows: During use, the compressor 201 operates and drives the low-pressure cylinder 202 and the high-pressure cylinder 203. The low-pressure cylinder 202 first collects the original gas source from the well and performs preliminary compression. Then, the high-pressure cylinder 203 further pressurizes the initially compressed gas to obtain high-pressure gas that meets the equipment requirements. The gas is then stored in the compressor 201's own gas storage structure and subsequent pipelines. When a thin spraying operation is required, the pneumatic delivery pump 205, driven by the pneumatic motor 204, transports the material in the storage tank 206 to the fixed block through the pipe fittings. The mixing chamber is located in 207. At the same time, the high-pressure gas in the compressor 201 is also delivered to the mixing chamber. The material and the high-pressure gas are fully mixed in the mixing chamber to form a uniform thin spray material flow. Then, the operator controls the mixed material flow to be sprayed out of the nozzle through the pneumatic control button 12 on the handle of the spray gun 208 to complete the thin spray operation. When the downhole gas pressure fluctuates and the gas pressure in the pipeline is insufficient, the gas pressure sensor 6 feeds back a signal, and the intelligent regulating valve 7 opens the gas pressure tank 210 to supplement the gas pressure, maintain the system gas pressure stability, and ensure that the thin spray operation is carried out continuously and stably.

[0032] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A thin-pitch jet propulsion device for mining, comprising a base plate (1), characterized in that: A thin-spraying mechanism (2) is provided on one side of the base plate (1); The thin-spraying mechanism (2) includes a compressor (201), which is located on one side of the base plate (1). A low-pressure cylinder (202) is fixedly connected to one side of the top of the compressor (201). A high-pressure cylinder (203) is fixedly connected to one side of the low-pressure cylinder (202) via a pipe fitting. The bottom of the high-pressure cylinder (203) is fixedly connected to the compressor (201). A pneumatic motor (204) is fixedly connected to one side of the compressor (201) via a pipe fitting. A pneumatic delivery pump (205) is fixedly connected to the other side of the pneumatic motor (204). The top of one side of the pneumatic delivery pump (205) is fixedly connected to the other side. A storage tank (206) is fixedly connected to the bottom of the storage tank (206) and the bottom plate (1). A fixed block (207) is fixedly connected to the other side of the pneumatic delivery pump (205) through a pipe fitting. A spray gun (208) is movably connected to the top of the fixed block (207). An air supply pipe (209) is fixedly connected to one side of the fixed block (207). The other end of the air supply pipe (209) is fixedly connected to the compressor (201). A pressure tank (210) is provided on the other side of the storage tank (206). One side of the pressure tank (210) is fixedly connected to the air supply pipe (209) through a pipe fitting.

2. The mining thin-puff jet propulsion device according to claim 1, characterized in that: The compressor (201) has mounting plates (3) fixedly connected to both sides of its top, and wheels (4) are movably connected to both sides of the mounting plates (3).

3. A thin-puff jet propulsion device for mining according to claim 1, characterized in that: A handle (5) is provided on the other side of the low-pressure cylinder (202), and both sides of the bottom of the handle (5) are fixedly connected to the compressor (201).

4. A thin-puff jet propulsion device for mining according to claim 1, characterized in that: A pressure sensor (6) is fixedly connected to the top of the gas pipe (209), and an intelligent regulating valve (7) is provided on one side of the pressure sensor (6). The bottom of the intelligent regulating valve (7) is fixedly connected to the pipe fitting.

5. A thin-puff jet propulsion device for mining according to claim 1, characterized in that: An air inlet pipe (8) is fixedly connected to one side of the pressure tank (210), and a support rod (9) is fixedly connected to the bottom of the pressure tank (210).

6. A mining thin-puff jet propulsion device according to claim 1, characterized in that: The top of the fixing block (207) is fixedly connected to a first flange (10), and the first flange (10) is connected to a second flange (11) by bolts. The top of the second flange (11) is fixedly connected to the spray gun (208).

7. A thin-puff jet propulsion device for mining according to claim 6, characterized in that: A button (12) is provided on the top of the second flange (11), and one side of the button (12) is movably connected to the spray gun (208).

8. A thin-puff jet propulsion device for mining according to claim 6, characterized in that: The bottom of the second flange (11) is provided with a sealing gasket (13), and the bottom of the sealing gasket (13) is fixedly connected to the first flange (10).

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