The content of gold in the ore is very low, in order to extract the gold, you need to crush and grind ore and adopt mineral processing method for pre-enrichment or separating gold from ore,re-election and floatation method is used in gold mining, re-election method in placer gold production occupies an important position, the flotation method is widely used in rock gold mining .At the present, about 80% of rock gold mining in our country adopt this method, mining technology and equipment level has been more greatly improved.

According to the survey,most of the gold plants in China are to use jaw crusher for coarse crushing, using the standard cone crusher for middle crushing ,while fine crushing is to use short-head type cone crusher and roller crusher. Medium and small gold-selection plant mostly use a closed-circuit crushing two large-scale plant using three sections with gold a closed-circuit crushing process.

In order to improve mineral production capacity, the potential of mining equipment potential ,and also make some modification for crushing process , so that making the grinding machine utilization factor increase, the main measures taken is to implement more crushing and less grinding to reduce the particle size of ore into the mill.

jaw crusher: http://www.hxjq-crusher.com/1.html
cone crusher: http://www.hxjq-crusher.com/8.html

single-stage hammer crusher: http://www.hxjq-crusher.com/9.html
sand washer: http://www.hxjq-crusher.com/16.html