PTMS · Della Magnet Dewatering Screen for Sand, Fines and Tailings
A dewatering screen drains water from wet sand, mineral fines and tailings so the product can be stockpiled, conveyed or loaded. It is a linear-motion screen fitted with fine screen media. We configure it to your material, capacity and cut size.
Specifications on request — send your material, capacity and mesh size.
Get a factory quotation by email WhatsApp
What is a dewatering screen?
It is a linear vibrating screen built to remove water rather than to grade. The deck slopes slightly uphill, so the solids form a thick bed at the feed end. The bed itself acts as a filter: water drains through the bed and the fine screen media, while the vibration carries the drained solids up and over the discharge end.
How does a dewatering screen work?
- Wet sand or fines are fed at the lower end, for example from a sand washer, cyclone or classifier.
- A bed of solids builds up against the uphill slope.
- The straight-line vibration compacts the bed and pushes water out through the screen media.
- The drained solids are walked uphill and discharged; the water is collected below.
Applications
- Quartz, silica and construction sand after washing.
- Mineral fines and tailings before stacking or further handling.
- Recovering fine solids from washing water.
For slurry that must become a dry, firm cake, such as kaolin or ceramic slurry, a membrane filter press is the usual choice instead of a screen.
Dewatering screen vs filter press
A dewatering screen is continuous and suits granular sand and fines. A filter press works in batches and suits fine slurries that need a solid filter cake. Send your material and target moisture use and we will advise.
How to choose a mining vibrating screen
- Material and particle size: what you screen, the top size of the feed and how much fine material it contains.
- Cut size (mesh / aperture): the size you want to separate at, and the number of products (one cut or several).
- Capacity: tonnes per hour of feed to the screen.
- Wet or dry: dry screening, wet screening with spray water, or dewatering.
- Screen media: woven wire mesh, polyurethane panels or perforated plate, chosen for wear and blinding.
- Site details: available space, feed and discharge points, and your local power supply.
Specifications
Specifications on request — send your material, capacity and mesh size.
What to send for a quotation
Material and particle size · capacity (t/h) · mesh or cut size · wet or dry · destination country
Related equipment
- Linear Vibrating Screen
- Circular Vibrating Screen
- High-Frequency Vibrating Screen
- Mining Vibrating Screens
- Vibratory sieve for ceramic slurry
- Vibratory sieve for ceramic glaze
- PTMS-FP-1250 membrane filter press
- Wet / slurry magnetic separators
- Dry magnetic separators
- Mining screens in the process line (powtechina.com)
Frequently asked questions
What is a dewatering screen used for?
Draining water from sand, mineral fines and tailings so they can be stockpiled, conveyed or loaded.
Why does a dewatering screen slope uphill?
The uphill slope holds a bed of solids at the feed end. The bed acts as a filter, and the vibration pushes water out while walking the solids up to the discharge.
Should I use a dewatering screen or a filter press?
A dewatering screen suits granular sand and fines in continuous duty. Fine slurries such as kaolin or ceramic slurry usually need a filter press to make a solid cake.
What is the price of a dewatering screen?
It depends on deck size, screen media and construction. We do not publish prices; send your material, capacity and mesh size and we reply with a factory quotation by email.
Get a factory quotation by email WhatsApp
Wet vibrating screen and dewatering screen manufacturers
The dewatering screen is the wet vibrating screen in our range. Among dewatering screen manufacturers, PTMS supplies it from China as part of sand and mineral lines, with specifications given at quotation.