KGL submersible slurry pumps have two main structures, one is the cantilever type, also known as the top type, with the bearing box above the liquid surface; the other is the sealed type, also known as the immersed type, with part of the bearing seat immersed in the liquid.

Cantilever type

1. Pump head part

Mainly composed of suction pipe, pump body, impeller, guard plate, shaft sleeve, rubber ring and other parts. Determined by the nature of the medium being transported, the impeller has two types of open and closed impellers, which are connected to the shaft by thread (right-handed), and the axial position of the impeller in the pump body is adjusted by a round nut. The material of the flow-through parts (pump body, impeller, guard plate) is alloy wear-resistant cast iron or alloy wear-resistant cast steel.

2. Shaft seal part

This type of pump has no shaft seal, and the entire pump body is sunk in the liquid for operation, which is convenient to start at any time.

3. Bearing part

Mainly composed of bearing box, rolling bearing, upper and lower bearing glands, round nuts, skeleton oil seals and other parts.

4. Connection and fixing part

The pump head part is connected to the connection pipe (bracket) and the bearing box. The bearing box is seated on the base, and the pump outlet pipe is fixed on the base.

5. Pump shaft part

This structure uses a main shaft, which directly extends into the pump body and connects to the impeller through the bearing box (threaded connection). This structure is simple and runs smoothly and reliably, but the maximum underwater depth is 1.5 meters.

6. Motor and transmission part

The motor uses a vertical B5 base, and the motor shaft and the pump shaft use an elastic block coupling to transmit torque. The motor is connected to the bearing box through the motor base.

7. Lubrication part

The structure guides the bearing with a waterless lubrication system, and the rolling bearings are all lubricated with molybdenum disulfide.

Sealed type

1. Pump head part

Mainly composed of pump body, pump cover, sealing ring, impeller nut, impeller, intermediate frame and other parts.

2. Shaft seal part

A skeleton oil seal is used, and a mechanical seal or an auxiliary impeller seal can also be designed according to the medium conditions.

3. Bearing part

Mainly composed of rolling bearing, bearing seat, bearing cover, hole retaining ring and other parts.

4. Connection and fixing part

The pump head part is connected with the bearing seat, connecting pipe and upper bearing seat (each connection contact surface is sealed with a pad, and the thickness of the pad is 1mm), and the upper bearing seat is fixed on the base.

5. Pump shaft part

The structure adopts segmented shaft soft connection (coupling is used between the two shafts, and rubber elastic blocks are connected). The underwater depth can reach more than 5 meters, but it must be assembled on site.

6. Motor and transmission part

The motor uses a vertical B5 base, and the motor shaft and pump shaft use elastic block coupling to transmit torque. The motor is connected to the upper bearing seat through the motor seat.

7. Lubrication part

This structure has no guide bearing, so there is no water lubrication system, and the rolling bearings are all lubricated with molybdenum disulfide.