The Silver Flotation Processing Plant

The silver flotation processing plant

The silver flotation processing plant

The silver content in the ore is very low. In order to extract silver, ore need crushing , grinding process and beneficiation methods adopts pre-enrichment or separate silver from the ore. Silver dressing to use more re-election and flotation, the re-election in the sand silver production occupies a very important position. Flotation is silvermine cave rock widely used dressing method, currently about 80% of the rock silver mine using this method to choose the silver, and mineral processing technology and equipment have been greatly improved.

A. Crushing and grinding

According to the survey, silver factory choose jaw crusher for primary crushing, standard cone crusher machine for medium broken, while the short head cone crushing machine and roll crushing machine for fine crushing. The smaller silver factory mostly use the two sections of a closed-circuit crushing, large-scale election silver plant using three sections of a closed-circuit broken ore process. In order to improve mineral production capacity, the equipment potential, and the crushing process was modified so that the grinding machine utilization factor increased, the main measures taken to implement and more broken and less grinding, and lower into the grinding of ore particle size.

B. the re-election

Re-election in silvermine cave rock is used widely, and more as an auxiliary process. Coarse silver recovery in the grinding circuit (B) the re-election

Re-election in, Silvermine cave rock used widely, and more as an auxiliary process, coarse silver recovery in the grinding circuit,create favorable conditions of flotation and cyanidation process , improve the beneficiation index, increase the total recovery of silver, increase production and has played a positive role of reduce costs. Shandong Province has about over 10 selected silver plant using this process of re-election, the average total recovery can be increased by 2% to 3%, the economic efficiency of enterprises, according to incomplete statistics, the annual profit of several million dollars. Henan, Hunan, Inner Mongolia and other provinces (regions) to achieve good results, the main equipment used are the chute, shaker, jigger and short cone cyclone. The view from the majority of our silver mines, floating - weight of the joint process (flotation tailings re-election) is suitable to adopt, should be to promote the sorting process during grinding stage, to promote the principel that as early as possible to receive.

C. flotation process

According to the survey, about 80% of the rock silver mine use flotation method for silver, and the output of concentrate sent to the non-ferrous smelter processing. Cyanide to mention the growing silver and enterprises to enhance economic efficiency, reduce concentrate transport losses in recent years, the product structure of the larger changes, to take place (of course, due to the contradiction between the smelt and pricing and other issues, forcing mines to place on their own) to promote greater development of flotation process, a considerable position in the silver production. Usually there are two processes of differential flotation and bulk flotation. New progress in recent years in terms of process transformation and reagent addition system, the flotation recovery has improved markedly.

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