Flow Analysis Of Alluvial And Rock Chrome Ore Processing

This Setup is a rock chrome ore processing plant, it is configured with raw material feeding, primary crushing, fine crushing, screening, ball mill grinding, and gravity separation to separate out and upgrade Chrome concentrate.

 The chrome ore raw material stone is fed to the primary jaw crusher by a vibration feeder, so can feed rock chrome ore smoothly and evenly. The vibration feeder is with the grizzly bar to grizzly oversize to a primary jaw crusher, under grizzly bar small size material go to the fine crusher by conveyor. So as can increase the crushing effect of the primary jaw crusher.

The primary jaw crusher is for crushing big rock chrome ore to a smaller size, output material to go next fine crushing machine cone crusher. Cone crusher is crushed rock chrome to below 20mm that suitable feed to ball mill but firstly will go to a vibration screen for screening out oversize+20mm send back to cone crush crushing again. Under screen 0-20mm go to storage bin before ball mill. If a small capacity plant, the cone crusher can be replaced by another type of fine crusher, such as a fine jaw crusher or hammer crusher or impact fine crusher, etc.

The 0-20mm powder material will be sent to the ball mill smoothly by an electromagnetic vibration feeder and belt conveyor. The ball mill is for grinding 0-20mm to small powder, it works together with the spiral classifier, so overflow slurry from the classifier is about 80% 200mesh powder, the oversize particle from classifier will go back to ball mill grinding again, to form a closed-loop.

The 200mesh slurry will be pumped to a gravity separation machine, spiral chute, and shaking table, the spiral chute is for primary concentration. In order to increase the chrome recovery ratio to maximum, we use a 2-stage spiral chute separation. The middling material from the 1st stage spiral chute group will be pumped to the 2nd stage spiral group, so as can recover as much chrome as possible.

All the heavy concentrate ore that is discharged from two stages spiral separators group will go to shaking table for concentrate again, to get higher grade chrome concentrate.

This setup plant design can be customized according to the customer’s chrome ore conditions, if need much higher grade chrome concentrate, can consider adding a high-intensity magnetic separator at the final stage. The plant capacity also can be as per request, such as 2tph,5tph,10tph,15tph,20tph, etc.