Hebei Yuezhong Longhui Import and Export Trading Co., LTD

The structural composition of commonly used slurry pumps is detailed as follows

The structural composition of commonly used slurry pumps is detailed as follows

(1) Pump Head Assembly
The pump body employs a ?double-layer casing? (dual metal structure) with an outer shell featuring ?vertically split construction?, allowing the discharge outlet to be rotatable to 8 positions at 45° intervals for flexible installation.
To prevent shaft seal leakage, a hybrid sealing system is utilized, combining ?power seals?, ?packing seals?, or ?mechanical seals?.
A ?labyrinth clearance seal? between the impeller and rear liner minimizes slurry leakage into the stuffing box, ensuring sealing reliability.
The impeller incorporates ?back vanes? to expel recirculated slurry promptly, enhancing volumetric efficiency, reducing backflow erosion, and prolonging the service life of flow-passing components.
A ?dismantling ring? facilitates maintenance and disassembly, preventing shaft damage due to immobilization.
(2) Bracket Structure
The bracket adopts a ?horizontally split design?. Hydraulic and structural optimizations distribute radial and axial forces evenly, extending bearing longevity.
Precision selection of ?bearing types?, ?models?, ?cooling methods?, and ?lubrication systems? achieves low operational heat generation and high durability.
(3) Shaft Seal Configuration
The shaft seal prevents air ingress and excessive fluid leakage between the pump body and shaft.
Centrifugal slurry pumps typically use ?"expeller + packing seals"?:
The ?hydrodynamic seal? leverages pressure head from the expeller to counteract leakage from the impeller outlet.
?Back vanes? and a ?seal chamber ring? on the impeller cover block air entry.
Simultaneously, back vanes and the seal chamber ring reduce pressure at the packing zone, inhibiting contaminant infiltration.
This integrated design ensures robustness against abrasive slurries while optimizing operational efficiency and maintenance accessibility.