Zinc oxide rotary kiln manufacturer

Zinc oxide rotary kiln is one of the most commonly used methods for the treatment of zinc-containing intermediate materials. It is also a roasting device for calcined zinc. The zinc oxide rotary kiln is a professional rotary kiln for the production and design of zinc oxide because zinc oxide is fine powder, so we have to make a specific rotary kiln for zinc oxide, so that it is what we say zinc oxide rotary kiln.
Application: Mainly used in building materials, metallurgy, chemical, refractory materials, environmental protection and many other production industries, chemical products - water zinc sulfate, zinc sulfate heptahydrate, refractories is the production of steel-making zinc ball at the end of the main raw materials. Buildings are widely used in containers, fire boards, arts and crafts, vegetable greenhouses, wall insulation boards, activity boards, asbestos and other production. Used to increase the wear resistance, good adsorption, low melting point, can change the metal lattice structure (more fine). So for paint refractory bricks, magnetic materials, ceramics, rubber tires, and so on.
Advantages:
1. Zinc oxide rotary kiln equipment configuration is simple, reduce investment costs and improve productivity.
2. Zinc oxide rotary kiln beneficiation efficiency is high, obtained by calcination smelting zinc oxide is good quality, small nodulation
3. The entire zinc oxide production line running smoothly, the production of large, in the smelting process, the fuel costs are greatly reduced.
Zinc oxide rotary kiln working principle:
Zinc oxide rotary kiln working principle is calcined zinc, zinc-containing substances throughout the process and principles. Generally use zinc oxide rotary kiln treatment of zinc cake. The zinc in the filter cake mainly exists in the form of zinc ferrite, oxide and sulfate. At the high temperature of the zinc oxide rotary kiln, zinc ferrite and solid carbon are reduced to metal zinc, and zinc, lead and cadmium sulfate Also be reduced, well in the form of sulfide and gold flexion out. From the solid phase to restore and volatilize the metal, under the action of the kiln atmosphere, and re-oxidation, and finally the main form of oxide output.
Note: The amount of air fed into the zinc oxide rotary kiln should ensure that the flue gas has enough oxygen to re-oxidize all the metal vapor, sulfide and carbon monoxide that have been previously restored. Increase the amount of zinc oxide kiln air, it will make the reduction area into the end of the extension. On the contrary, to reduce the amount of air, the reduction area is shortened and the starting section of the reduction zone extends toward the discharge end.
The entire zinc oxide rotary kiln working principle is the usage of metal zinc, cadmium, lead and cadmium sulfide and lead oxide at high temperatures with high vapor pressure characteristics, so that zinc, lead, cadmium and other metals with oxides Shape into volatile matter, copper and precious metals into kiln slag, and then the other side of the residue from the volatiles and kiln waste small recovery of these metals.