overview

The BQS (W) explosion-proof submersible sewage and sand discharge pump for mining is an electric drainage and irrigation equipment that combines a pump and an electric motor. It has a beautiful appearance, simple structure, good sealing performance, stable performance, long service life, convenient installation and use, and can operate continuously underwater for a long time. It is widely used in coal mine shafts, inclined shafts, and bottom scattered coal mud automated drainage. Internal electric pump, water flows through the interlayer of the electric motor, effectively extending the service life of the electric pump; The external electric pump adopts a double channel large flow structure for the impeller, which runs smoothly, has strong discharge capacity, is anti entangled, has no blockage phenomenon, and has the characteristics of small volume, light weight, and easy portability.

The BQS (W) series mining explosion-proof sewage and sand discharge submersible electric pump is designed and manufactured strictly in accordance with the coal industry standard MT/T671-2005 "Explosion proof Submersible Electric Pump for Coal Mines" and the national execution standard GB3836-2000 "Electrical Equipment for Explosive Gas Environments" of the People's Republic of China. The motor adopts a Y-type dry explosion-proof three-phase asynchronous motor, which has the characteristics of large starting torque, good operating performance, low noise, small volume, light weight, and easy maintenance, And with excellent explosion-proof structural performance and high protection level, it is suitable for use with water pumps in environments containing explosive gases such as methane or coal dust, underground mining faces and tunnels with explosion hazards.

The electric pump adopts an O-ring rubber seal as the static seal, which has good structural performance. The use of rubber vulcanization curve control technology ensures the quality and sealing performance of the O-ring's moisture resistance and aging resistance. The dynamic seal adopts two sets of mechanical seals with oil chamber isolation protection, effectively providing lubrication for the rotating friction pair, forming a fluid film lubrication protection, and releasing the accumulated heat during movement, thereby extending the service life of the mechanical seal and ensuring sealing performance.

The fluid components of the electric pump are made of wear-resistant alloy cast iron, and the water pump part adopts fluid mechanical design and balance technology, effectively extending the service life of the electric pump.

The temperature of the conveying medium should not exceed 40 ℃

Media containing solid particles, with a volume concentration generally not exceeding 5%

The pH value of the conveying medium is within the range of 4-10

Working environment temperature 0-40 ℃

The diving depth of the water pump shall not exceed 5m

The maximum particle diameter of the solid in the medium shall not exceed 75% of the minimum size of the flow section of the water pump channel

Drainage of underground mining faces containing methane or coal dust explosion hazards in coal mines

Drainage during construction of coal mine shafts and inclined shafts

Main drainage at the bottom of the mine without water storage chamber

Automatic drainage of bulk coal bunker at the bottom of the main shaft

Automatic drainage of water inflow in old ponds and uninhabited areas

Groundwater discharge from underground coal mines containing small solid particles such as coal dust and sediment