Double Screw Silica Sand Washing Plant Gold Spiral Classifier

Durable screw sand washing machine is mainly used for many sandstone industries such as: sandstone factory, building work site, hydroelectricity dam, glass manufacture, oil well development. The machine is specially designed for sandstone and quartz sand company to wash, separate, aThe machine can class the finely milled materials by particle size, fine particles suspended in the water become into the overflow outflow, coarse particles sink to bottom, by the spiral pushing into the upper and return to grinding machine, the machine is also used to separate fine clay in the minerals and used for ores dehydration.

Spiral classifier is formed by gearing, spiral, cell and lifting device etc.

1.Gearing: The transmission of spiral is achieved by motor through V-belt.

2.Spiral: It is the main components of this machine, it formed by the main shaft, frame, spiral blades, lining iron frame. The frame, spiral blades, linked iron are formed to connected spiral surface, because the shaft is constantly rotating, so the role of helical face is mixing the slurry , make fine particles flow from the overflow weir, coarse mineral particles conveyor from the screw first to discharge port.

3.Cell: Welded by steel plate and shaped steel, it is the body of screw classier.

4.Lifting mechanism: The movement of machine screw parts is achieved through the cycloid reducer, gear, screw. When classifier stop working, the materials in the water chute will precipitated, in order to avoid damage by precipitation and the transmission will occurs over load when it move again, so must lift the screw spindle from water chute and make it leave the precipitation level, for this design lifting mechanism.

Characteristics
Spiral classifier can be divided into two kinds: common one and up-dated one.

(1)Up-dated classifier increases a automatic sand-return device at the sand-return part, lift ore sand that discharged at tank bottom to a proper position at tank wall,to adapt the configuration of ball mill cancelled big spon head.

(2)When ball mill has cancelled big spon head, it can usually save electricity 1-1.5 degrees per ton ore, meanwhile, avoid frequent maintenance about big spon head, and slow down the wear speed of small gear, improve ball mill run speed, save electricity obviously.

(3) When ball mill has cancelled big spon head, it has no effect on specification and grinding ability of classifier.nd classify and dehydrate.high weir single spiral classifier price low.

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