What this equipment does
Slurry pumps handle solid-liquid mixtures encountered throughout coal preparation: feed to dense-medium cyclones, tailings transport, dewatering circuit pumps, and product transfer between sumps. Hard-metal and rubber-lined variants are both common; the choice depends on particle size, slurry concentration, and the abrasiveness of the solids. Slurry pump life is governed by impeller and liner wear, sealing system performance, and proper sump and pipework design upstream.
- Equipment Type
- Centrifugal slurry pump
- Material Handled
- Coal slurry, tailings, dense medium, mine water with fines
- Capacity Range
- 20–4,000 m³/h
Common Applications
- Coal washing plants
- Tailings handling
- Dense medium circuits
- Mine dewatering
- Filter press feed
Technical Specifications
| Specification | Value | Unit |
|---|---|---|
| Flow | 20–4,000 | m³/h |
| Head | up to 90 | m |
| Solids Content | up to 60% by weight | |
| Wet End Materials | Hard metal (28% Cr) or rubber-lined | |
| Sealing | Gland water, expeller, or mechanical seal | |
| Drive | V-belt or direct-coupled with VFD |
Selection Factors
- Particle size distribution and top size
- Slurry concentration (by weight)
- Abrasiveness of solids
- Required flow and head
- pH and corrosion environment
- Available power supply
Maintenance and Wear Notes
Slurry pump maintenance is dominated by wet-end wear: impeller, throatbush, volute liner, and frame plate liner all wear at predictable rates that depend on duty. Sealing system condition (gland-water flow, expeller condition, mechanical seal face condition) is the second major maintenance area.