SLUICE FOR EXTRACTING HEAVY MINERALS OUT OF PULP Russian patent published in 2010 - IPC B03B5/70 B03C1/06 

FIELD: mining.

SUBSTANCE: invention refers to design of sluices for extracting fine dispersed minerals of gold, mercury and such like materials by gravitational settling from pulp flow and by additional extraction of ferromagnetic particles of magnetite, ilmenite, iron, cast iron, steel and iron scale as by-products by means of magnetite separators. In particular, such sluices are suitable for development of crumbled wastes of certain mining and metallurgical productions and ashes of heat electric power stations operating on solid fuel. The sluice of extracting heavy minerals from pulp consists of: at least one main running chute out of non-ferromagnetic material inclined to horizontal for flow of pulp containing mixture of particles of heavy minerals and random impurities. In its operating position the chute with its upper end is connected to the a pulp source, while with its lower end it is connected to a device withdrawing rejects to a dump. A cellular mat placed on a bottom of the main running chute catches and accumulates concentrate of heavy mineral in cells. Also the sluice consists of at least one complete set of kinematically tied rigid non-ferromagnetic templates of shallow filling arranged between boards of the main chute above the said mat and connected to at least one drive of reciprocate transportation along the boards of the chute and the mat. Each template of the set has lengthwise and cross riffles. There is at least one additional and also inclined to horizontal non-ferromagnetic chute for dumping and for separate withdrawing ferromagnetic particles extracted from pulp flow in the main chute. In an operating position the additional chute is coupled with a collector of ferromagnetic concentrate. The sluice is equipped with at least one magnetic separator mounted above the chutes. The separator performs step rotation and reciprocate transportation and is designed on base of least two controlled electro-magnets for catching ferromagnetic particles from pulp flow in the main chute and for their transfer and dumping into the additional chute.

EFFECT: improved conditions of precious minerals settling, also reduced combined sedimentation of heavy valuable minerals and ferromagnetic materials into concentrate at cleaning dumps of ore-dressing and processing enterprises, ferrous metallurgy plants and coal heating electric power stations.

5 cl, 4 dwg