What this equipment does
Vibrating screens are used throughout coal preparation and handling for sizing (separating coal into discrete size fractions), dewatering (removing surface moisture from washed product), and dense-medium recovery (separating magnetite from product streams). Screen types include single- and double-deck horizontal screens, banana screens, dewatering screens, sieve bends, and high-frequency fine screens. Selection depends on feed size distribution, required cut size, capacity, and whether the duty is wet or dry.
- Equipment Type
- Vibrating screen
- Material Handled
- Raw coal, washed coal, dense medium, slurry
- Capacity Range
- 50–1,500 tph per deck
Common Applications
- Coal preparation plants
- Coal washing circuits
- Dewatering circuits
- Dense medium recovery
Technical Specifications
| Specification | Value | Unit |
|---|---|---|
| Capacity per Deck | 50–1,500 | tph |
| Cut Size | 0.5–150 | mm |
| Screen Area | 2–24 | m² |
| Drive Type | Eccentric shaft or exciter | |
| Screen Media | Woven wire, polyurethane, slotted | |
| Inclination | Horizontal to 25° |
Selection Factors
- Required cut size and screening efficiency
- Feed rate and feed size distribution
- Wet versus dry duty
- Screen media type (wire vs polyurethane)
- Available installation space and headroom
- Drive type (eccentric vs exciter)
Maintenance and Wear Notes
Screen media is the primary wear item; replacement intervals depend on tonnage, particle hardness, and panel material. Polyurethane media generally outlasts wire in abrasive duty but costs more upfront. Other maintenance items include drive bearings, springs, and structural cracking from fatigue.