wet vs dry screening in mineral processing

The goal of mineral processing is to produce maximum value from a given raw material.  In other words, after liberation by size reduction and size control, all minerals are free to be separated from each other. There are two main methods of mineral screening: wet vs dry screening.

• What is wet screening?

Wet screening is typically used for processes that involve finer feed material, or in cases where the material has a high moisture content that makes it more difficult to dry screen. Sometimes, desiccation is required at the end of the process in order to remove the liquid used in the wet screening process.

• What is dry screening?

Dry Screening is the process of screening material in its naturally mined state. There can be large moisture variability (depending on a number of environmental or processing factors) which affects the overall efficiency of a screen.

In the process of mineral screening and solid-solid separation, it can be done in dry or wet mode depending on the state of the feed and desired state of the product. By the way, the benefits of wet and dry screening are different. 

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