This equipment is mainly used for calcining chemical clinker, divided into two categories: dry production chemical kilns and wet production chemical kilns. The chemical rotary kiln is mainly used for magnetization roasting of lean iron ore in the metallurgical industry's steel plants; Oxidation roasting of chromium and nickel iron ores; Refractory plant roasting high alumina vanadium ore and aluminum plant roasting clinker, aluminum hydroxide; Chemical plants roast minerals such as chromite sand and chromite powder.

 

Working process:

The raw ore is directly fed into the tail of the rotary kiln through an electronic belt measuring scale, belt conveyor, stabilizing bin, and air lock valve from the storage warehouse. Only the stabilizing bin is installed at the tail of the kiln to reduce investment. The ore enters the rotary kiln for heating first, and the raw ore moves in the opposite direction of the hot gas flow inside the kiln. After being heated to the reduction temperature in the heating zone, the raw ore enters the reduction zone. The temperature of the flame center in the reduction zone is controlled at around 1000 ℃, and the temperature of the hot atmosphere in the reduction zone is controlled at around 700 ℃, which reacts with the reduction gas to reduce to magnetite. Afterwards, it enters the cooling zone and meets the incoming gas. The gas is preheated, and the ore is cooled before being discharged from the kiln. After being water-cooled by a continuous bucket conveyor, it is stored in a warehouse for selection.

 

Equipment characteristics: