1. uses: coal water injection, dust reduction, coal pressure reduction, coal cracking, gas discharge, etc.

2. function:

1, moisture enters the coal body, releases part of the gas, and effectively reduces the gas content of the coal body;

2. After water injection achieves the effect, dust can be reduced by more than 80%, the working environment of workers can be improved, and dust explosion accidents can be prevented.

3, wet coal body, prevent coal body from spontaneous combustion;

4, high-pressure water injection, crushing coal, reducing fire products, reducing costs and increasing workers' sense of security;

5, using hole sealer to break coal can effectively prevent coal and gas outburst and explosion.

3. structure: hole sealer consists of high-pressure rubber expansion hose, safety valve and quick connector.

4. technical parameters:

sealing diameter: 30-120mm (can be processed according to user requirements)

working pressure: 1-8Mpa (can be processed according to user requirements)

safety valve starting pressure: 0.4-0.5Mpa

working flow rate: 4 tons -4.5 tons of water per hour

sealing depth: 1m-8m

hose expansion coefficient: 60%-100

5. usage methods and precautions:

, using coal seam water injection hole sealer is fast and convenient. It is only necessary to connect the waterway at the operation site with the hole sealer, insert the hole sealer completely into the drilling hole, and under a certain pressure, the hole sealer hose expands to achieve hole sealing and water injection to break the explosion.

2. The hole sealer for coal seam water injection can be used repeatedly for several times. After the water injection is finished, the hole sealer can be restored to its original state and the hole sealer can be taken out.

3. It is forbidden to operate under pressure by inserting hole sealer and recovering hole sealer.

4. No one is allowed to work directly in front of the hole sealer.