Screening process technology

First, the particle size and its representation
In the sieving process, the materials to be processed are scattered material groups of different sizes and shapes. To understand the particle size characteristics of such materials, it is

Chemical reaction rate and diffusion mass transfer rate

The chemical reaction rate v k and the diffusion mass transfer rate v D vary according to their own laws. For heap leaching, after a period of leaching, it is possible to achieve v k and v D equal, then the rate v of the h

The meaning of ore grade

Ore grade number refers to certain metals useful components contained in the ore, generally expressed as a percentage (%). Some use gram per ton or cubic meter of ore expressed in grams per gram (g / ton), (g / m3 ). Such as the gra

Rotary crusher construction

The center discharge type 900/160 gyratory crusher shown in Fig. 1 is composed of a frame, a working mechanism, a discharge port adjusting device, a transmission mechanism, a safety device, a dustproof device and a lubr