Mineral processing product processing overview

The processing stage of the mineral processing products is mainly the dewatering of concentrates and the storage and dewatering of tailings. The dewatering operation of the product is an auxiliary operation necessary for the concentrator.

The dehydration stage includes several stages of concentration, filtration, and drying.

Concentration is the first step in dehydration. It can concentrate the tailings slurry and recycle a part of the water for circulating water. It can also be used as the dewatering before the concentrate filtration to increase the concentration of the concentrate to increase the filtration effect.

Filtration is the next step of concentration, which can achieve the concentration of concentrate products and tailings products, such as concentrate water (ie concentration) can be reduced from 45-60% to 10-18%.

Drying is the treatment after the concentrate is filtered. Generally, the mineral processing products are not dried without special requirements. For example, copper, zinc, lead, and iron ore are not dried, and rare metals is required due to the higher value of the drying process, such as molybdenum concentrate.

2. Why do concentrate products have to be dehydrated?

Most of the black and non-ferrous metal concentrators in China use wet beneficiation. In the process of grinding, grading and sorting, a large amount of water is added to the ore. In this way, the concentrate selected from the sorting equipment will contain a considerable amount of water in a slurry state. It is very obvious that concentrates containing such a large amount of water in a slurry state cannot be sent directly to the smelter. The water content of the concentrate sent to the smelter is generally 8-12%, which is basically powdery. Therefore, the concentrate product must be dehydrated.

In addition to meeting the smelting requirements for water, in order to facilitate long-distance transportation of concentrates and reduce transportation costs, as well as to prevent freezing during transportation and in concentrate bins, concentrate products must be dewatered.

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