Zhijiang Brand QKSG Type High-Head Submersible Mine Pump

Example: QKSG600-504-1500

Q indicates submersible operation; K indicates mine use; S indicates water-filled wet type; G indicates high-voltage motor (1.14kV-10kV) (low voltage omitted); 600 indicates flow rate of 600 m3/h; 504 indicates head of 504 m; 1500 indicates motor power of 1500 kW.

① Vertical Installation Method

The vertical installation method of the submersible electric pump unit is suitable for vertical shaft sump drainage and surface dewatering drainage. The submersible electric pump is suspended in the shaft sump. The advantages include reasonable force distribution, stable operation, small sump footprint, and high drainage efficiency. The disadvantages are the greater depth of the vertical sump and the need for sufficient lifting space, with higher requirements for supporting heavy loads.

② Horizontal and Inclined Installation Methods

The horizontal electric pump unit offers advantages such as easy installation, convenient lifting, and reduced sump construction workload. Combined with a horizontal pump carrier and rollers, it enables rapid drainage operations.

③ Applicable Installations for Main Underground Drainage, Track-Mounted Emergency Drainage, and Trackless Inclined Shaft Production Recovery Drainage

Main Drainage: The submersible electric pump serves as the main drainage equipment, featuring a small footprint and minimal roadway construction. Combined with a pump carrier and unit, it can be installed using clamp rollers or foundation supports. Installed in the underground connecting roadway sump pump position, it eliminates the need for a dedicated pump room. A distribution valve is set in the distribution roadway connecting the pump room and the sump.

Track-Mounted Emergency Drainage: The electric pump unit is lowered to the bottom of the shaft along the track, aiming to complete the drainage operation in one go. The pump carrier unit can move quickly within the roadway and is equipped with a flexible quick-connect coupling device. As water level and volume change, the submersible electric pump adjusts its position rapidly, shortening drainage time. It also has low requirements for lifting equipment.

Large-Flow Inclined/Vertical Mine Rescue Pump for Trackless Emergency and Production Recovery Drainage:

For abandoned mines without tracks or conditions unsuitable for direct installation of large submersible electric pumps, a combined drainage system is used, consisting of a submersible electric pump, suction cover, pressure-resistant hose, and booster pump. The booster pump is combined with the main drainage pump and installed at the bottom of the main drainage pump. It feeds water to the main drainage pump via steel pipes to perform drainage operations. The booster pump is easy to maintain and move, avoiding suction of sediment and debris at the bottom of the shaft. A drainage method that facilitates drainage, repair, and track laying is adopted until drainage reaches the bottom of the shaft.