What is the slurry pump?

What is slurry?

Definition of slurry:

Slurry actually refers to a mixture of liquid and some solids that are insoluble in liquid. The type, size, shape and content of solids determine the physical properties and flow characteristics of slurry.


In engineering, the following main characteristic parameters are required to accurately describe a type of slurry. These parameters should also be mastered as accurately as possible before selecting and applying slurry pumps:

  • Type of solids True specific gravity of solids----S

  • Particle size distribution of solids----such as median particle size d50

  • Solid content----weight concentration Cw; volume concentration Cv

  • Type of liquid Specific gravity of liquid----sw Viscosity of slurry

  • Temperature of slurry Acidity and alkalinity of slurry----PH value and what kind of acid or alkali


Slurry characteristics

In engineering applications, slurries are usually divided into two categories according to the different characteristics of the slurry: homogeneous slurry and inhomogeneous slurry.

Homogeneous slurry refers to those slurries in which the particle size of the solid matter is very fine, so that these solid matter will not settle even in a static state. This type of slurry has very low abrasiveness, but it will show a large change in macroscopic viscosity with the change of concentration, so it should be very small in the selection

The solid particles in the inhomogeneous slurry are relatively coarse, and they will precipitate in a static state. The coarser particles increase the abrasiveness of the slurry. Usually, most of the slurries we encounter are inhomogeneous slurries.


What is the slurry pump?

A slurry pump is a pump used to transport solid-liquid mixtures. There are many types of solid-liquid pumps: centrifugal, mixed flow, screw, etc.

The slurry pump we are talking about is actually a centrifugal solid-liquid pump. Slurry pumps are suitable for transporting solid-liquid mixtures with strong abrasion and containing hard solid particles. For example: ore slurry, ash, cement slurry, gravel, etc. Classification of slurry pumps 1. According to the layout: Horizontal slurry pump, submersible slurry pump, submersible slurry pump. 2. According to the application: Mortar pump, mud pump, gravel pump, dredging pump, foam pump, etc..