the most important equipment for any business is "BRAINS" ..!! :D

well, i dont know what you actually want to convey with your question..but the basic procedure involves major equipments according to mining stages as mentioned below..

Raw Materials --> Vibrating Feeder --> Jaw Crusher --> Ball Mill --> Spiral Classifier --> Magenetic Seperator --> Flotation Machine --> Mixer for Mine --> Dryer .

I guess, you have a better idea of how it takes place.. :)
for anymore information, PM me..