Cyanide Leaching Agitation Tank for Gold CIL Plant

Working Principle

The machine is mainly composed of a circular tank and an agitator. The drive system consisting of motor, reducer and support base drives the agitator to rotate. The agitator has the lower and upper impellers, each with four blades. The blades rotation produces strong thrust which forces the pulp to flow from up to down at the center of the tank. The pulp diffuses along the radial direction at the bottom of the tank then flows upward along the circular wall of the tank, thus a closed cycle is formed. If the machine is used as a leaching tank, the leaching agent solution and air are filled into the tank, and the leaching agent and air are evenly distributed in the tank to leach gold. If the machine is used as the adsorption tank, activated carbon or other materials with strong adsorption capacity is put into the tank to adsorb gold dissolved in the solution.

Usually at least six tanks work together continuously to complete the whole circuit to recover gold as much as possible.

Features

Pulp moving smoothly and uniform mixing which cause less power consumption;

Air is inflated into the center of the tank and agitated by the blades of the agitator to evenly disperse in the tank which maximizes the utilization of oxygen.

The unique agitator structure makes the solid content of the pulp uniform in all positions of the tank to avoid the particles settling.

Every blade of the agitator is lined with wear-resistant rubber. Low rotating speed of the agitator cause long service life and effectively protect activated carbon, so that the lowest wear of activated carbon  avoids gold loss caused by that the gold loaded carbon is  broken and enters tailings.

The Multi-point air inflation system improves the utilization rate of oxygen and makes oxygen, reagents & minerals to contact each other fully which improves the leaching efficiency and shortens the leaching residence time.

The air inflation system and unique high-pressure water devices share a pipeline system. If the tank filled with slurry is stopped for a long time, the particles will settle naturally and pile together on the bottom of the tank. The lower impeller is blocked completely because the height of the particles pile will exceed the height of the lower impeller. The particles around the impeller can be loose by high-pressure water which makes it easy to start the agitator again.

Application Scope

This agitation tank series are used for the agitation, leaching and carbon adsorption in the gold cyanide plant with particle size of -200 meshes more than 90% and the concentration of less than 45%. It can also be used for mixing, agitation and leaching operation in industries such as metallurgy, chemical industry and light industry under corresponding conditions.

Technical Parameters

Small Size

Medium Size

Big Size

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