Dewatering Screen

Any material that comes into contact with water will get wet. Material needs to be washed or transported as concentrate and waste pulp in the enrichment of the ore for the production of the aggregate and sand necessary for ready-mixed concrete production in ore preparation facilities and the construction sector.
Finely ground sand or concentrates that are to be transported by ship should have a water content of 5%. Otherwise, the material in the ship’s hold will liquefy due to the movement of the ship over waves, causing it to behave like water and potentially sink the ship. Furthermore, transportation costs are increased by the water content of the ore. For this reason, moist materials must be dehumidified.
It is possible to reduce the humidity of wet material to below 1% in a furnace at a temperature of 105°C. This is a costly operation, and it is more economical to dry the remaining surface moisture after the free water in wet or washed materials is removed through special treatments.
After a certain stage, washed sand must be purged of free water prior to use in aqueous concentrate, for transportation, or for the following process. Dewatering processes remove the free water from liquid-solid mixtures through the use of screens or centrifugal force.