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Published in:
2020 | OriginalPaper | Chapter
Research and Design of Suspension Calcining Technology and Equipment for Kaolin
Authors : Shengliang Tang, Jianjun Wu, Huating Song, Bin Wang, Tongbo Sui
Published in: Calcined Clays for Sustainable Concrete
Publisher: Springer Singapore
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Abstract
A new large-scale suspension calcination process and key equipment suitable for dehydration and calcination of kaolin clay are introduced. The pretreatment process can be designed to meet various raw materials with different moisture contents, and the burning system has high heat transfer efficiency with a five-stage cyclone preheater, a suspension calciner and a fluidization cooling system. Moreover, the thermal process of materials in the production line can be accurately controlled as required necessarily; especially, the temperature of calciner can be controlled at a fluctuation of less than ±10 °C. Pilot production results show that suspension calcined clay has good activity and workability as a kind of supplementary cementing materials, indicating that suspension calcination technology has a good application prospect in the field of producing calcined clay for cement.