PJ type sizing pump

PJ sizing pump, also known as low pulse pump, is a kind of updating product designed by itself based on the actual situation of paper industry, aiming at the problems of unstable pulp and inconvenient disassembly of mixed flow pump with large flow and low head widely used in paper industry. It has the following characteristics:

1. High efficiency: efficiency 75~85%, reduce the supporting power of the motor, energy saving effect is significant.

2. Pulp stability: because the impeller adopts split staggered blades, through precision casting, so that the pressure pulse is reduced, so that the quality of paper can be uniform.

3. Long life: because the impeller of the pump is composed of two single suction impeller back to back, it will not produce axial force when working. In addition, the bearings are located on both sides of the shaft, lubricated with grease, and the labyrinth seal without contact and wear is adopted, so that the bearings are effectively protected.

4. Easy maintenance: because the pump body and the pump cover combined surface and the horizontal plane of the shaft line coincide, the maintenance of the pump, without disassembling the inlet, outlet pipeline and mobile motor or other prime mover.

This pump is suitable for the matching of high-speed paper machine pulp system, which can improve the output and quality of paper, and benefit the technical reform of the old paper machine at the same time.

Suitable for slurry conveying at temperature below 80℃ and concentration below 1%.

PJ sizing pump suction and outlet axis plane are below the pump axis line, and parallel to the pump axis plane.

Pump shell open, maintenance without removing the water inlet, discharge line and motor (or other prime mover). From the driving end to the pump,

Pump for clockwise rotation, according to the need can also be counter-clockwise rotation of production, ordering should be put forward special requirements.

The main parts of the pump are: pump body, pump cover, impeller, shaft, double suction seal ring, shaft sleeve, bearing and so on.

Impeller adopts double suction structure left and right blades evenly spaced staggered arrangement. With precision casting and dynamic balance check,

So that they have the same volume of blade passage and complete symmetry of the surface.

Keep a proper distance between impeller and pump casing tongue, effectively control liquid flow Angle, so as to ensure the pressure pulsation reduction. The pump shaft consists of two deep groove ball bearings

Support, bearings installed in the pump body at both ends of the bearing body, with grease lubrication. Double suction seal ring is used to reduce the water floor of the pump water chamber

It leaks back into the suction chamber.

The pump is driven directly by a motor through an elastic pin coupling.

The shaft seal is a soft packing seal. In order to cool and lubricate the sealing cavity and textile air into the pump, a packing ring is arranged between the packing.

When the pump works, a small amount of high pressure water enters the packing chamber through the trapezoidal groove in the open face of the general manager's pump cover, which plays a sealing role.

Performance range:

At rated operating point

Flow rate: 100~3000m³/h

Head: 4~50m

Rotation speed: 980r/min 1450r/min

Power: 4kw to 355kw

Pulp concentration: ≤1%

When the user has special requirements for the performance of the pump, the material, according to the user's requirements, to design production.