S.A.I.C.I. produce a new double step desanders series particularly designed to treat betonite mud used in drilling excavating. Betonite mud is treated and washed by separating them from solid polluting matters such as: fine sands, clays, slimes and organic matters.
The first treatment - i.e. roughing - is carried out on the steel screen whereby parts exceeding 8 mm are separated; is sucked by the pump and conveyed to the greater diameter hydrocyclones. Here all particles with granulometry exceeding 50 microns are separated.
Treated mud flows to a secondary pump and from here sent to the to the set of cyclones with a smaller diameter for the second treatment. Efficiency separation of double step desander can reach values up to d50= 30 microns. The machine can be modified in order to work also with one passage as a standard desander.
|TYPE||SD2500 HPD||SD4000 HPD||SD5000 HPD|
|Cut Point d50||[m]||30||30||30|
Diagram of the two step desander