APPARATUS FOR THE RECOVERY OF MAGNETIC FINE POWDERS IN A MAGNETIC FLUID SEPARATION OF SUSPENDED SOLIDS FROM WASTE WATER

PURPOSE: A recovery equipment for magnetic pulverulent particle of a magnetic fluid separating system of suspended solid contained wastewater is provided, which can remove suspended solid contained in wastewater by magnetic fluid separating method by providing recovery equipment of magnetic pulverulent particle. The magnetic pulverulent particle and suspended solid are separated by fluidizing media particle caused by hot air of high pressure. CONSTITUTION: The system comprises the followings: (i) a slurry tank (21) for storing and supplying magnetic floc composed of magnetic pulverulent particle and suspended solid; (ii) a cylindrical media fluidized bed (24) made of cones at the top and bottom, in which a porous distributing plate (25) is installed at the bottom and media of a fixed size is filled on the plate (25), through the cone bottom a hot air of high pressure is fed for fluidizing media particle; (iii) a magnetic separator (28) around which magnets are fixed, which is installed downstream of media fluidizing bed (24) at a position above the bed (24) for collecting magnetic dust entrained in hot air; (iv) a cyclone (29) set at the downstream of the magnetic separator (28) for separating suspended solid; (v) a recovery tank (31); and (vi) a hot air supply equipment (50).