Mine crushing equipment is a process of changing the shape of ore by physical means, so that natural resources have certain special uses.According to the classification of crushing objects, it can be roughly divided into sand and gravel crushing, metal ore crushing, and waste recycling in the environmental protection industry.The equipment used usually includes: jaw crusher, cone crusher, impact crusher, vibrating screen, sand washing machine, etc.
The gold ore crushing system has three stages and one closed-circuit process, the first stage crushing (coarse crushing) is located underground, and the crushing equipment is a jaw crusher; the second and third stage crushing (medium and fine crushing) are located in the ground crushing workshop.Cone crusher is a secondary crushing equipment. The pre-screening equipment before secondary crushing is a double-layer circular vibrating screen, and the pre-screening equipment for fine crushing is a double-layer circular vibrating screen, which forms a closed-circuit circulation process with cone crusher, belt conveyor and transfer station.
The production process and equipment of gold ore are relatively simple. First, the large gold ore enters the jaw crusher for preliminary crushing. After being screened by the circular vibrating screen, the unqualified materials enter the jaw crusher for re-crushing, and the qualified gold ore will be crushed by the jaw crusher. sent to the ball mill for grinding processing;The ground pulp will be classified under the action of the spiral classifier. Similarly, only the pulp that meets the conditions can enter the mixing tank to be mixed with the agent and fully stirred; then, it is sent to the flotation machine to make the mineral and pulp completely. After the reaction, the gold concentrate can be obtained; the gold concentrate is preliminarily concentrated by the gold concentrator, and then dried and dehydrated in the dryer to obtain the finished gold concentrate.
80% of the concentrators in my country choose to use the flotation method for gold separation, and the flotation method is suitable for processing coarse and medium-grained natural gold iron ore. The equipment used are jaw crusher, cone crusher, vibrating screen, ball mill, flotation machine, etc. After crushing, the gold ore enters the ball mill for fine grinding, and then becomes pulp and then enters the flotation machine for flotation.In the flotation process, sodium carbonate is used as a regulator, and butyl xanthate and nigrosine are used as collectors. The flotation method cannot produce finished gold, and can only enrich gold into various sulfide concentrates at most. Therefore, a single flotation process is generally not used, but flotation is used as one of the combined processes.
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