Amphibious mining explosion-proof submersible drainage pump

Outstanding features

1. Amphibious and multi-use machine

Safety and anti-explosion, explosive-proof structure, submerged operation, good heat dissipation of motor, no overload throughout whole head design which ensures the safe operation. Motor cannot be burned out because of overload. The pump can be used both submerged in water or on land by connecting suction pipes. According to the use of location,flexible choice of use and one machine multi-purpose.

2. Use water to cool the motor. Start-up and operation can be carried out without water

The electric pump adopts built-in motor structure, there is a water interlayer outside the motor.

When the electric pump delivers water, the water flows through the interlayer between the motor and the pump shell to force cool the shell of motor. So the motor cooling effect is good and the overload performance of the motor is improved.In the case of no water operation, Pump impeller idles with motor, the load is very small and the effective power output of the motor is small, so the heat is small, so it will not cause the motor to overheat and will not damage the motor.

The motor bearings and mechanical seals adopt an effective cooling method, which will not be damaged under water-free operation. In the pump, the rear pump continues to pressurize for drainage, to achieve the effect of doubling the head and high head drainage.

3. A variety of installation methods

This electric pump can be installed in series to achieve high head drainage. It can adopt submersible installation, land installation, hanging installation, and a variety of tandem installation methods. Electric pump specially designed tandem interface, two or more electric pumps can be installed in tandem. The water conveyed by the front pump is pumped into the rear pump, and the rear pump continues to pressurize to drain the water, to achieve the effect of doubling the head and realizing high head drainage.

It is suitable for normal production drainage and disaster relief drainage in underground coal mine tunnels and mining working faces; it can also be used for drainage in Coal Handing and Preparation Plant, tunneling projects, water conservancy projects and other places. It is suitable for discharging sewage containing solid particles such as suspended coal dust, rock chips, coal particles, sand, gravel and silt.

(1)Rated voltage: 380V/660V or 660/1140V( Allowable Deviation ±5% )

(2)Rated frequency: 50Hz

(3)Submergence depth: ≤20m

(4)Medium temperature: ≤40°C

(5)Environmental temperature: 0-40℃

(6)Medium PH: 4-10

(7)Sediment solids content weight ratio: ≤20%

(8)Soilds passage: Not more than 50% of the minimum size of the flow

section of the pump passage

(9)Medium density: ≤1100Kg/m³

(10)NPSHr：≤4.8m