DESCRIPTION :
Flotation is an operation in which the separation of one of the constituents is carried out by using a method which depends on the difference in surface tension properties of materials involved. This method consists of suspending of mixture of finely divided solids in water which is aerated so that air bubbles tend to adhere preferentially to one of the constituents the one which is difficult to wet and its effective apparent density is reduced to such an extent that it rises to the surface in the form of a froth, and the one which more readily absorbs, water phase becomes surrounded by water and sinks. If a suitable frothing agent is added to liquid, the particles will be held in the surface by means of a stable froth until they can be discharged.
RANGE OF EXPERIMENTS TO BE CARRIED OUT :
- Find % recovery of coal in froth from coal-sand mixture.
EXPERIMENTAL SETUP :
- Agitator Unit : SS fourth flotation agitator shaft housed in bearing drive.
- Unit Motor : 1/2 Hp, 230 V. AC. Single phase motor, by V-Belt. multispeed
- Air Diffuser : A specially designed air diffuser entry ports air supply Hood through annular space in stand pipe.
- Air supply control valve(Closed during slurry conditioning operation).
- Container : 300 x 300 x 300mm., 2700 Cu cm.
SERVICE REQUIRED :
Power Supply : 440 V. 3 phase, 50 cycles AC supply
Air Supply : @1 kg/cm2
SPACE REQUIRED :
1.5 m. ( L) x 1.0 m (W) X 1.0 m (H).
WEIGHT : @ 75 Kg
