The structure of titanium dioxide calcining kiln is similar to the rotary kiln in alumina and cement industry. The bowl is made up of armor plate coil with fire-resisting lining inside and slant to the horizon. The bowl is set with belting leather and the bearing is on the bearing device of its corresponding gear. Fix a bull gear with a tangential spring board on the bowl around the central belting leather which is jointed with the pinion bellowing. In normal operation, the main transmission electric motor transmits motion onto the open type gear by the main speed reducer thus drive the rotary kiln.

The working principal of titanium dioxide rotary kiln:

Send the filter pressed titanium dioxide filter mass to the rotary kiln end (the high end of the bowl) meanwhile the combustion nozzle in the kiln hood (the lower end of the bowl) blows the clean fire and hot wind to the kiln and dehydrates and calcines the filter mass. The titanium dioxide filter mass after being dehydrated and calcined under the high temperature of above ***0 degree celsius can turn around the circle and move with the axial direction( from the high end to the low end) by the slanted rotary kiln body. Being continuously like that , the dehydration and calcining will be finished. Finally through the double hydraulic pressure reverse turning bed discharge valve in the lower part of the kiln hood cover, the material enters into the cooling machine. The titanium dioxide is made after being cooled and filtered.