Copper mining usually is processed in very large, open pits. The process of mining requires the rock to be loosened by blasting. The process begins by drilling the rock to place the explosive. The blasted rock is then scooped up into large dump trucks that haul it to crushing plant.
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Copper Mining Process Flow Chart
In copper mining process flow sheet, the copper ore deposit will be first extracted by open pit quarrying or underground mining methods. The feeder or screens separate large boulders from finer rocks that do not require primary crushing, thus reducing the load to the primary crusher.
The crusher product, normally 7.5 to 30 cm in diameter, and the grizzly throughs (undersize material) are discharged onto a belt conveyor and usually are conveyed to a surge pile for temporary storage or are sold as coarse aggregates. The following operation for diatiomite processing including calcining, classification etc.
Copper Extraction Plant
The copper extraction process starts by reducing the size of the ore and making it manageable for extraction. Once crushed, the ore is dumped into a rotating mill, along with water. The mill further crushes the rock and water together to create a slurry or slushy mixture. Separation begins by putting the mixture into a froth flotation. The flotation process adds other chemicals and substances that raise the pH of the slurry and begins to pull the metal away from the minerals. After the flotation process, the ore is referred to as copper concentrate. The concentrate is dried and sent to the smelting process, which further separates and refines the metal.