Equipment for Coal Refuse and Rejects Handling

Process Overview

What this application covers

Coal refuse handling covers the reject streams from preparation plants: coarse rock rejects, middlings, fine refuse, and tailings. Equipment may include refuse conveyors, crushers, dewatering screens, thickeners, slurry pumps, filter presses, and stacker systems. The design objective is to reduce water content, minimize transport cost, and meet environmental rules for disposal or backfill.

Process Flow

Step by step

01

Reject separation

Coarse and fine refuse are separated in washing circuits.

02

Coarse refuse conveying

Rock and coarse rejects are moved by belts or trucks.

03

Fine refuse pumping

Fine slurry is pumped to thickeners or filters.

04

Dewatering

Screens, thickeners, and filter presses reduce water content.

05

Disposal or reuse

Material is stacked, backfilled, or transported to permitted disposal areas.

Buying Notes

Technical Buying Considerations

Reject handling should be designed around disposal strategy. A plant producing stackable filter cake has different conveyor, stockpile, and truck requirements than a slurry impoundment system.

Process equipment

Required Equipment

Filter press

Filter Presses

Membrane and plate-and-frame filter presses for dewatering coal preparation tailings and fine slurries.

1–80 m³ filter chamber volume Coal preparation tailings, fine slurries

Clarifier thickener

Coal Thickeners

Technical overview, specification points, applications, and RFQ notes for coal thickeners in coal mining and coal handling projects.

10–5,000 m³/h Coal tailings, process water, fine solids

Centrifugal slurry pump

Slurry Pumps

Centrifugal slurry pumps for coal preparation tailings, dense medium circuits, dewatering, and mine water service.

20–4,000 m³/h Coal slurry, tailings, dense medium, mine water with fines

Dewatering screen

Dewatering Screens

High-frequency dewatering screens for removing surface moisture from washed coal product and tailings filter cake.

20–500 tph per screen Washed coal, fines, slurry

Belt conveyor system

Coal Conveyor Systems

Belt conveyor systems for moving raw coal, washed coal, and rejects between mining, preparation, and load-out points.

200–6,000 tph Raw coal, washed coal, middlings, rejects, coal fines

Related Guides

Tailings Management Equipment Guide

Technical buying notes, specification points, and RFQ guidance for tailings management equipment guide.

Filter Press Selection Guide for Coal Slurry

Technical buying notes, specification points, and RFQ guidance for filter press selection guide for coal slurry.

Frequently Asked

FAQ

What information is needed to quote coal refuse and rejects handling equipment?

An RFQ for coal refuse and rejects handling equipment should include duty, capacity, material condition, installation environment, power supply, operating hours, and any dimensional limits. For replacement projects, photos and existing equipment drawings help avoid mismatched interfaces.

Where are coal refuse and rejects handling equipment commonly used?

coal refuse and rejects handling equipment are commonly used where preparation plant rejects must be dewatered and disposed. They normally work as part of a larger coal mining, coal handling, washing, dewatering, or safety system rather than as an isolated item.

How should buyers compare coal refuse and rejects handling equipment?

Buyers should compare duty rating, wear materials, maintenance access, service life assumptions, spare parts availability, controls integration, and compatibility with upstream and downstream equipment.

What related equipment should be considered with coal refuse and rejects handling equipment?

Related equipment usually includes conveyors, feeders, crushers, screens, pumps, dust control equipment, guards, controls, and spare parts depending on the process position.