Mining vibrating screens
Dewatering Screen for Washed Sand, Fines and Tailings
Short answer: a dewatering screen is a linear-motion screen with fine panels and an uphill deck. The solids build a bed that filters out water while the vibration walks them to the discharge, giving a drained product that can be stockpiled or conveyed.
A dewatering screen is the usual wet vibrating screen in this range: process water is removed from washed sand, mineral sand or suitably sized tailings. PTMS supplies dewatering screens as a mining-screen manufacturer; specifications are given with the quotation.
Specifications on request — send your material, capacity and mesh size.
Working principle
Feed enters at the low end. Because the deck rises toward the discharge, solids pile up into a deep bed. That bed traps fine particles and lets water drain down through the panels. The straight-line stroke compacts the bed, squeezes out more water and moves the drained solids up and off the deck.
Position in the line
After a sand washer, hydrocyclone or classifier, ahead of the stockpile or conveyor. In washed quartz and silica sand plants it is the last wet step before storage or drying.
Dewatering screen vs membrane filter press
A dewatering screen is continuous and suits granular sand and fines. Fine clay-sized slurries such as kaolin or ceramic slurry drain poorly on a screen and are pressed into cake in a membrane filter press instead.
Selection checklist
- Feed: material, top size and the share of fines or clay; whether it is dry, damp or a slurry.
- Cut: the aperture or mesh you separate at, and how many products you need (this sets the deck count).
- Throughput: tonnes per hour reaching the screen, including any circulating load from a crusher or mill.
- Duty: dry sizing, wet sizing with spray bars, de-sliming or dewatering.
- Screen media: woven wire, polyurethane or rubber panels, or perforated plate, matched to abrasion and blinding risk.
- Plant interface: feed chute and discharge positions, structure height, and the local supply voltage and frequency.
Specifications
Specifications on request — send your material, capacity and mesh size. Deck size, deck count, screen media and drive are confirmed in the quotation for your duty.
Dewatering Screen: questions
How does a dewatering screen remove water?
Solids form a bed against the uphill deck; the bed and the fine panels act as a filter, and the vibration squeezes water out while carrying the drained solids to the discharge.
Where does a dewatering screen go in a sand plant?
After the sand washer, cyclone or classifier and before the stockpile, conveyor or dryer.
Dewatering screen or filter press?
Screen for granular sand and fines in continuous duty; filter press for fine slurries that must become a solid cake.
What is the price of a dewatering screen?
It depends on deck area, panel type and construction. PTMS does not publish prices; send your material, capacity and mesh size for a quotation by email.
Related equipment
- Linear Vibrating Screen
- Circular Vibrating Screen
- High-Frequency Vibrating Screen
- All mining vibrating screens
- PTMS-1200-3S vibratory sieve (dry powders and granules)
- PTMS-FP-1250 membrane filter press
- Dry powder magnetic separators
- Wet / slurry magnetic separators
- Mining screens: inquiry and supply to India (dellamagnet.com)
Get a factory quotation by email
Send your material, capacity and mesh size (or target cut). Our engineers match the screen type, deck count and screen media and reply with a quotation.
Get a factory quotation by email Email [email protected] WhatsApp +86 139 2990 7491