FLOATATION MACHINE FOR FOAMY SEPARATION Russian patent published in 2006 - IPC B03D1/24 

FIELD: coal industry; mining; ferrous metallurgy; nonferrous metallurgy; other industries; flotation of minerals and non-metallic raw.

SUBSTANCE: the invention is pertaining to the field of flotation of minerals and non-minerals, in particular, to the floatation machine for foamy separation and may be used in the coal industry, ferrous and nonferrous metallurgy on ore mills, and also at floatation non-metallic raw. The technical result of the invention is optimization of the hydrodynamic and aerodynamic conditions of the floatation process for separation of the coarse-grained material and improvement of reliability of the floatation separation process. The floatation machine includes the bath with the longitudinal froth- chutes, the loading device, the airlift with the vertical partitions, the spacing interval between which is equal to 150 mm. The arranged with the clearance above the airlift mash deflector is separating the aerated mash going out of the airlift into two streams guiding them onto the foam into the floatation sections. The bath has the loading device and the dumping pocket connected to the chute for tailings. The loading device consists of the arc screens separation the feeding into two products - the oversize product containing the large particles of + 0.5 - 3 mm and the through-product containing the small particles with dimensions of -0.5 + 0 mm. The oversize product is fed onto the foam into the floatation machine, and the through-product is fed through the right-angle hole under the foam into the mash volume in the bath. The aerator of the airlift is arranged under the bottom plate of the bath and consists of the short vertical air-dropping tubes arranged along the longitudinal axis of the airlift and connected with the bosses having the internal thread. The tubes bosses enter through the holes in the bottom inside the bath for the small height. Laval nozzles are screwed into them. The clearance between the bosses and the bottom is compacted tightened up. The air-dropping tubes are connected to the horizontal distributing pipe, which through the air duct is connected to the receiver.

EFFECT: the invention ensures optimization of the hydrodynamic and aerodynamic conditions of the floatation process for separation of the coarse-grained materials and improvement of reliability of the floatation separation process.

4 cl, 2 dwg