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CIC, having been started the producing of the pyroprocessing equipments since 1950s, is one of the largest designing and manufacturing enterprises for pyroprocessing equipment in China. The complete set of the pyroprocessing equipment CIC can provide includes the dry, semi-dry and wet processed cement rotary kiln, self-return soda steam calciner, metallurgy chemical kiln, environmental dryer and cooler, and etc, which are widely used in the industries of cement producing, metallurgy, chemical, environment protecting and etc.
CIC has a first-rate team dedicated to the pyroprocessing equipment developing, studying and testing, and the perfect experimenting and testing measures, excellent manufacturing equipment and technology for the pyroprocessing equipment. A complete system for the designing, manufacturing, installing and debugging service for pyroprocessing equipment has now been built up here at CIC.
Recently years, CIC has been learning from the world famous international companies, such as the Danish FLSmisth, German KHD Humboldt and Polysius, and etc, and cooperating with the domestic cement research and design institutes in ZheJiang , HangZhou, HangZhou and etc. With all these efforts, CIC has developed the series of new large dry-processing cement rotary kiln, which are matching for the 3000~5000t/d cement producing line.
The Supply Scope of the complete set includes: the Kiln Rear Sealing Device, Supporting Device, Shell, Driving Device, Supporting Device with Shaft Roller, Hot Kiln Hood, and Hydraulic System for Thrust Roller (without refractory Material). The Electronic Control System is also available as per the customer’s request.
Cement Rotary Kiln
1. Application and Operating Principle
The rotary kiln is the central equipment for cement clinkering system in the new large dry processing cement production, which can be used with uni-stream or twin-stream pre-heater, calcining combustor. 90%~ 95% of the raw material which has been pre-calcined has been fed into the slow rotating and inclining installed rotary kiln from the rear. Under the composite effect of circumferential tilting and axial movement, the material slowly flows through the whole drum, the fuel (coal dust, oil or natural gas) sprays from kiln head into high temperature zone for burning, which produces the required heat for physical and chemical reaction of combination and crystallization of material inside the kiln. Under the function of rear blower, the burning gas steam and material counter flow the whole kiln, completing heat exchange and physical or/and chemical reaction. The clinkered cement id discharged to the cooler.
1) The shell is made of the high quality kilned carbon steel and alloy steel, by the method of automatic welding;
2) The tyre and roller are made of ZG35CrMo steel and 42CrMo steel;
3) The sliding bearing is the non-scraping liner one with large clearance;
4) The driving device is equipped with the reducer with hard tooth surface and flexible diaphragm coupling, and driven by DC motor;
5) Hydraulic thrust roller is used;
6) Low-speed driving device is equipped.
Technical Performance Parameters of Cement Rotary Kiln
|No.||Specification||Basic Parameters||Main Motor||Thrust Type||Support Type||Weight||Remarks|
|1||Φ3.2×50||0.674-3.37||3.5||1000||160||Hydraulic Type||Sliding Type||252.4|
|5||Φ4.3×64||0.4-3.96||3.5||3200||420||606.69||Excluding seals of kiln head and kiln rear|
|6||Φ4.8×72||0.39-3.69||3.5||5000||630||853.3||Excluding kiln head cover|
|10||Φ5.6×87||max 4.23||4||8000||800||1201||Cooperating with Burleigh Hughes|
|12||Φ6×95||max 5||4||10000||950×2||Cooperating with Smith|
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