The products includes five series: crusher, sand making machine, powder grinding mill, mineral processing equipment and building materials equipment.The smelting of ferronickel using lean nickel ores usually starts with roasting (calcining) of the ore mixture with limestone (one third of the ore)anthracite (110 of the ore amount)and recycled dust. Roasting is carried out in rotary kilns (3 m in diameter75 m in lengthwith a hot zone length of 9 to 12 m in the case of lean ore .
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