BQG Mining Pneumatic Diaphragm Pump | Underground Mine Dewatering

Underground mining operations require reliable pumping equipment for mine drainage, water transfer and wastewater handling. The BQG Series Mining Pneumatic Diaphragm Pump is designed for demanding mining environments where compressed-air operation, simple maintenance and reliable fluid transfer are required.

This mining pneumatic diaphragm pump, also known as a mining slurry diaphragm pump, is suitable for underground coal mining applications and can also be used in non-coal mining operations with similar pumping conditions. Its pneumatic design allows the pump to operate using compressed air, making it suitable for underground areas where flexible and reliable pumping equipment is needed.

Applications in Underground Mining

The BQG Series can be used as a mine dewatering diaphragm pump and high solids diaphragm pump for a range of underground mining applications.

1. Mine Drainage

The pump can be used to remove accumulated water from underground working areas, tunnels and mining sections. Reliable drainage helps maintain safer and more efficient operating conditions.

2. Underground Water Transfer

The pump is suitable for transferring clean water between underground locations. It can be used for intermittent pumping duties where equipment must be easy to operate and maintain.

3. Mine Wastewater Transfer

Mining wastewater may contain suspended solid particles. As a diaphragm pump for abrasive slurry, the BQG Series can transfer wastewater and similar fluids within the applicable operating limits of the selected pump model.

4. Non-Coal Mining Applications

Although the pump is designed with underground coal mining conditions in mind, it can also be used in metal mining, mineral mining and other industrial applications with similar fluid transfer requirements.

For an underground mine dewatering pump, the final selection should consider the required flow rate, discharge pressure, suction lift, fluid temperature, pH, solids concentration and particle size.

Reliable Pneumatic Diaphragm Pump Design

The BQG Series uses compressed air as its power source. The pneumatic diaphragm operating principle creates alternating suction and discharge cycles through pressure changes in the air chambers. Check valves control the normal intake and discharge of the pumped medium.

Ball Valve Design

The ball valve design helps reduce the risk of clogging when handling fluids containing suspended solid particles. This makes the pump suitable for mine water and underground wastewater transfer.

The maximum allowable particle size depends on the selected pump model. The particle size should always be checked against the technical specifications before installation.

Automatic Stop During Discharge Blockage

When the discharge line becomes blocked, the pump can stop instead of continuing to build pressure. Once the blockage is removed, the pump can resume operation under the applicable operating conditions.

Dry-Run Capability

The pump can continue to operate when the pumped medium has been completely evacuated, subject to the product instructions and operating limitations. This feature is useful for intermittent mine drainage and water transfer applications.

Simple Maintenance

The BQG Series is designed for straightforward operation and maintenance.

•      No lubrication required for normal operation

•      No dynamic shaft seal

•      Simple maintenance

•      No dead point during operation

•      Compressed-air driven

•      Suitable for intermittent pumping applications

These features can help simplify routine maintenance in underground mining environments.

Operating Conditions and Pump Selection

The BQG Series Mining Pneumatic Diaphragm Pump can be used for clean water and wastewater containing solid particles within the applicable product limits.

Reference operating conditions include:

•      Air supply pressure: 0.2–0.8 MPa

•      Medium temperature: ≤40°C

•      Medium pH: 4–10

•      Solids concentration: ≤2% by volume

•      Ambient temperature: −20°C to +40°C

•      Relative humidity: ≤95% at +25°C

The allowable flow rate, discharge pressure and particle size depend on the specific pump model and operating configuration.

Before selecting a mining pneumatic diaphragm pump, please provide the following information:

•      Required flow rate

•      Discharge pressure

•      Suction lift

•      Total pipeline length

•      Fluid type

•      Fluid temperature

•      pH value

•      Solids concentration

•      Approximate particle size

•      Available compressed-air pressure

•      Underground operating conditions

Underground coal mines may contain coal dust and methane. The BQG Series should only be used in locations and conditions covered by the selected model’s applicable certification, installation instructions and site safety requirements. The required certification and operating limitations should be confirmed before installation.

Conclusion

The BQG Series Mining Pneumatic Diaphragm Pump is a practical solution for mine drainage, underground water transfer and wastewater handling. As a mining slurry diaphragm pump, high solids diaphragm pump and diaphragm pump for abrasive slurry, it provides compressed-air operation, simple maintenance and reliable handling of suitable solids-containing fluids.

For underground applications, the BQG Series can help support mine drainage and fluid transfer where flexible, intermittent and easy-to-maintain pumping equipment is required.