A pneumatic automatic steam-water diversion device for coal mines

Abstract

This utility model discloses a pneumatic automatic gas-air separation device for coal mines, including an air pump, a water storage tank, and a water discharger. The air pump inlet is connected to the outlet of a slag remover via a pipe, and the air pump outlet is connected to the water inlet of the water storage tank via a pipe. The water storage tank has a water-air outlet at the top and a water outlet at the bottom. The water-air outlet is connected to a gas extraction branch pipe via a pipe, and the water outlet is connected to the water discharge inlet of the water discharger via a pipe. The water discharger has a water outlet at the bottom and a check valve at the water outlet. The top of the water discharger has a pressure relief port, and a liquid level sensor is installed on the water discharger. Using an air pump as the power source for water discharge, water accumulated in the pipeline can be pumped into the water storage tank by eliminating negative pressure, effectively separating water and gas. The gas then re-enters the extraction system, achieving an effective extraction effect.

Description

Technical Field

[0001] This utility model belongs to the field of coal mine gas control technology, specifically relating to a pneumatic automatic steam-water diversion device for coal mines. Background Technology

[0002] Water accumulation in gas drainage boreholes is a common problem in coal mine gas drainage processes. It can affect the gas drainage effect, reduce the gas drainage concentration and flow rate, cause blockage of drainage pipelines, increase the load on drainage pumps, and affect the accuracy of drainage data.

[0003] To address the problems caused by water accumulation, water discharge devices are often installed on gas pipes. Existing water discharge devices include a water discharger with a float inside. The float is connected to a pressure relief mechanism via a connecting rod. The pressure relief mechanism is installed at the top of the water discharger. The bottom of the water discharger has an inlet and an outlet opposite each other. The upper part of the water discharger on the inlet side has a negative pressure port. The negative pressure port and the inlet are connected to a slag remover via a connecting hose. The slag remover is installed on the gas branch pipe. The water accumulated in the gas extraction pipe enters the water discharge device directly from the slag remover. Gas and water cannot be fully separated, and the water can only flow by gravity, automatically flowing from high to low into the water discharge device. When the extraction negative pressure reaches a certain level, it will draw the water into the extraction pipeline, causing water accumulation in the pipeline. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a pneumatic automatic steam diversion device for coal mines.

[0005] The technical solution adopted by this utility model is a pneumatic automatic steam diversion device for coal mines, including an air pump, a water storage tank, and a water discharger. The air pump inlet is connected to the water outlet of the slag remover through a pipe, and the air pump outlet is connected to the water storage inlet of the water storage tank through a pipe. The top of the water storage tank is provided with a water storage air outlet, and the bottom is provided with a water storage outlet. The water storage air outlet is connected to the gas extraction branch pipe through a pipe, and the water storage outlet is connected to the water discharge inlet of the water discharger through a pipe. The bottom of the water discharger is provided with a water discharge outlet, and a check valve is provided at the water discharge outlet. The top of the water discharger is provided with a pressure relief port, and a liquid level sensor is installed on the water discharger.

[0006] Preferably, the aforementioned slag remover is installed at the lower end of the gas extraction water pipeline, and a ball valve is installed on the slag remover and connected to the air pump via a connecting hose.

[0007] Preferably, the top of the water storage tank is also provided with an observation hole.

[0008] Preferably, the water inlet of the above-mentioned water dispenser is located at the top of the water dispenser, and the water inlet is not higher than the water outlet of the water storage tank.

[0009] Preferably, the pressure relief port is connected to the gas extraction branch pipe via a rubber hose.

[0010] Compared with existing technologies, the beneficial effects of this utility model are as follows: it uses a blower as the water discharge power, which is suitable for water discharge in various negative pressure pipelines, and provides multiple pumping and discharge effects. The water accumulated in the pipeline can be eliminated by the blower to remove the negative pressure and enter the water storage tank, effectively separating the water and gas. The gas can then re-enter the extraction management to achieve an effective extraction effect. In addition, the blower pumps the accumulated water into the blower to reduce the water accumulation in the pipeline and reduce the corrosion of the extraction pipeline, valves and pump body. The use of a hydraulic sensor eliminates the need for regular manual water discharge. When the accumulated water reaches a certain volume and reaches the liquid level sensing position, the check valve will automatically open to release the water. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0012] The present invention will be further explained below with reference to the accompanying drawings to enable those skilled in the art to better understand it.

[0013] Example 1

[0014] like Figure 1 As shown, a pneumatic automatic steam diversion device for coal mines includes an air pump 1, a water tank 2, and a water dispenser 3. The air pump 1 has an air pump inlet 101 and an air pump outlet 102. The water tank 2 has a water inlet 201 and a water outlet 202 at the top and a water outlet 203 at the bottom. The water dispenser 3 has a water outlet 301 at the top and a pressure relief port 302 at the top. The water outlet 303 has a check valve at the water outlet 303. The air pump inlet 101 is connected to the outlet of the slag remover 4 through a pipe. The air pump outlet 102 is connected to the water inlet 201 through a pipe. The water outlet 202 is connected to the gas extraction branch pipe 5 through a pipe. The water outlet 203 is connected to the water inlet 301 through a pipe. The pressure relief port 302 is connected to the gas extraction branch pipe 5 through a hose. A liquid level sensor 304 (or a float sensor) can be used to replace the liquid level sensor is installed on the water dispenser 3.

[0015] The slag remover 4 is installed at the lower end of the gas extraction water pipeline, and a ball valve is installed on the slag remover 4 and connected to the air pump 1 via a connecting hose.

[0016] The top of the water storage tank 2 is equipped with an observation hole 204 for monitoring the water level and the accumulation of scum inside the water storage tank 2.

[0017] In order to facilitate the flow of water from the water storage tank 2 to the water dispenser 3, the water inlet 301 is not higher than the water outlet 203.

[0018] Working principle: An automatic gas diversion device is installed on the pipeline with water accumulation. The gas extraction branch pipe is connected to the air pump using a connecting hose. The water and gas in the pipeline enter the air pump through the connecting hose, and then enter the water storage tank through the air pump. The gas returns to the pipeline through the water storage tank, and the water flows into the drain device through the water storage tank and is automatically discharged after reaching a certain water level.

[0019] This device is easy to install and ensures that there is no scum accumulation in the automatic water drainer. It uses a blower to power the water discharge and is suitable for various negative pressure pipelines. It has multiple pumping and draining effects. Water accumulated in the pipeline can be eliminated by the blower to remove the negative pressure and enter the water storage tank, effectively separating water and gas. The gas can then re-enter the extraction system to achieve an effective extraction effect. At the same time, the blower can reduce water accumulation in the pipeline and reduce corrosion of the extraction pipeline, valves and pump body.

[0020] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from its design spirit and principles should fall within the protection scope defined by the claims of the present invention.

Claims

1. A pneumatic automatic steam-water diversion device for coal mines, characterized in that, The device includes a blower (1), a water tank (2), and a drainer (3). The blower inlet (101) of the blower (1) is connected to the outlet of the slag remover (4) through a pipe. The blower outlet (102) of the blower (1) is connected to the water inlet (201) of the water tank (2) through a pipe. The top of the water tank (2) is provided with a water outlet (202) and the bottom is provided with a water outlet (203). The water outlet (202) is connected to the gas extraction branch pipe (5) through a pipe. The water outlet (203) is connected to the drain inlet (301) of the drainer (3) through a pipe. The bottom of the drainer (3) is provided with a drain outlet (303). A check valve is provided at the drain outlet (303). The top of the drainer is provided with a pressure relief port (302). A liquid level sensor (304) is installed on the drainer (3).

2. The pneumatic automatic steam-water diversion device for coal mines according to claim 1, characterized in that, The slag remover (4) is installed at the low end of the gas extraction water pipeline. A ball valve is installed on the slag remover (4) and connected to the air pump (1) using a connecting hose.

3. The pneumatic automatic steam diversion device for coal mines according to claim 1, characterized in that, The top of the water storage tank (2) is also provided with an observation hole (204).

4. A pneumatic automatic steam-water diversion device for coal mines according to claim 1, characterized in that, The water inlet (301) of the water dispenser (3) is located at the top of the water dispenser (3), and the water inlet (301) is not higher than the water outlet (203) of the water storage tank (2).

5. A pneumatic automatic steam-water diversion device for coal mines according to claim 1, characterized in that, The pressure relief port (302) is connected to the gas extraction branch pipe (5) via a rubber hose.

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