- Boilers[7]
- Brick Making Machinery[1]
- Cement Making Machinery[4]
- Sand Making Machinery[5]
- Drying Equipment[10]
- Other Construction Machinery[1]
- Crusher[10]
- Mine Mill[10]
- Mineral Separator[7]
- Mining Feeder[2]
- Sand Washer[2]
- Vibrating Screen[1]
- Paper Processing Machinery[9]
- Paper Product Making Machinery[10]
- Used Mining Machinery[1]
- Contact Person : Ms. Zhao Fiona
- Company Name : Zhengzhou Zhongzhou Machinery Manufacturing Co., Ltd.
- Tel : 86-371-67983688
- Fax : 86-371-67859758
- Address : Henan,Zhengzhou,NO.8,Yunshan Road,Hi-tech Zone
- Country/Region : China
- Zip : 450001
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A Rotary kiln (rotary lime kiln)is a pyroprocessing device used to raise materials to a high temperature (calcination) in a continuous process. Materials produced using rotary kilns include:
Cement Lime Refractories Metakaolin Titanium dioxide Alumina Vermiculite Iron ore pelletsThey are also used for roasting a wide variety of sulfide ores prior to metal extraction.
Principle of OperationThe kiln is a cylindrical vessel, inclined slightly to the horizontal, which is rotated slowly about its axis. The material to be processed is fed into the upper end of the cylinder. As the kiln rotates, material gradually moves down towards the lower end, and may undergo a certain amount of stirring and mixing. Hot gases pass along the kiln, sometimes in the same direction as the process material (co-current), but usually in the opposite direction (counter-current). The hot gases may be generated in an external furnace, or may be generated by a flame inside the kiln. Such a flame is projected from a burner-pipe (or "firing pipe") which acts like a large bunsen burner. The fuel for this may be gas, oil or pulverized coal.
ConstructionThe basic components of a rotary kiln are the shell, the refractory lining, support tyres and rollers, drive gear and internal heat exchangers.
rotary lime kiln/rotary kiln