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McLanahan - Dewatering Screens
Dewatering Screens have a wide variety of applications, including dewatering, desliming, degritting, rinsing, scrubbing, sizing and washing. They are designed to produce a consistent drip-free product and handle materials such as sand, gravel, crushed aggregates, frac sand, industrial sands, mineral sands, hard rock, precious metals ore, coal, iron ore, salt and other granular materials. Surface moisture as low as 8% has been experienced with Dewatering Screens; however, final moisture is dependent on surface area, surface morphology, and contact angle. Finer materials, such as those processed in fines recovery systems where the material is 100% passing 100 mesh (150µm), will dewater to a drip-free consistency, which conveys and stacks, but may have a surface moisture content of more than 20%.
Popular Applications for Dewatering Screens
Dewatering Screens can be used to dewater -4mesh (5mm) particles of sand, coal, iron ore, salt, etc., dewater fines in fines recovery circuits typically +400mesh (+38µm), rinse and dewater jig discharge — nominally -2” (50mm), for limited efficiency fine sizing at or above 10 mesh (2mm) to create differential products, stone washing and rinsing
- Cleaner operating environment with less conveyor spillage to clean up
- Easier belt cleaning and lower conveyor maintenance costs
- Consistent drip-free discharge
- Steeper stacking angles with a drier product
- Better stockpile management with shorter inventory cycle
- Less water around stockpiles for reduced wear on mobile equipment
- Rinse and dewater on the same screen
- Dewater multiple products on one machine using divided deck design
- Upward inclination for consistent dewatering and feed surge capacity
- Less water lost to waste and improved housekeeping
- Control of gradation with Cyclone or sieve bend based recycle system
- Huck bolted, crossbeam construction for rigidity and ease of maintenance
- Heavy-duty urethane screen media and attachment system