Thickener Grinding Machine

Details Of Thickener Grinding Machine

Mill Thickener features

Thickener's main function is to increase the coating storage stability, improve after coating film (flowing, flow ping) viscosity. But requirements often inconsistent, that in stock increase coating viscosity, inhibit the separation of coating, at high speed and lower viscosity coating, coating, and improve viscosity, prevent the happening of the flowing phenomenon, and so on.

Mill Thickener application

Small and medium diameter thickeners will normally incorporate a Centrally Mounted Lifting Device supported by the drive head that is fixed to the bridge structure. A screw is attached to the shaft of the raking arms which are raised or lowered depending on the monitored torque. The power to the rotating lifting motor and its control from the microswitches is supplied by a slip ring housing that is stationary and mounted on the lifting screw cover.

Mill Thickener Work Principle

According to Ron Magill, the author of the EduMine course The Mill Operating Resource Mineral Recovery, the thickener is a very basic piece of machinery. It simply provides a holding area large enough to allow the concentrate time to settle to the bottom. Once it has settled, there are adjustable rakes that rotate and pull the solids to an exit point With the solids settling to the bottom, the liquid, called the liquor, overflows into a launder. Depending upon how the thickener is being used, these two substances, the solids and liquor, will go their separate ways each being processed in accordance with the needs of the circuit.

Mill Thickener project

On some applications, such as thickening downstream froth flotation, a thick scum layer floats on the surface of the liquid. This layer finds its way into the overflow launder and contaminates the clear overflowing liquid with fines. This problem is solved by incorporating a scum baffle that retains the scum layer so that a special rotating scum skimmer pushes the scum into a box for disposal.

Thickener tanks may be constructed either from steel or concrete and may reach diameters of 120 meters and in earthen basins up to 180 meters. Most of the chemical process industries prefer the steel tanks construction since they may be elevated above ground level, allow inspection of the tank's floor for leakages and bring the underflow slurry pumps nearer to the outlet of the discharge cone. Another consideration in selecting steel tanks is their ready adaptation to corrosive processes by rubber covering the wetted parts of the tank.

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