Comparison of Temperature Field Distribution between Cement Preclinkering Technology and Cement Precalcining Technology  

作　　者：徐迅 WANG Lan 

机构地区：[1]Country State Key Laboratory of Green Building Materials, China Building Materials Academy, Beijing 100024, China [2]Country State Key Laboratory Cultivation Base for Nonmetal Composite and Functional Materials, Southwest University of Science and Technology, Mianyang 62101O, China

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2016年第2期355-360,共6页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the Major State Basic Research Perelopment Program of China(973 Program)(No.2009CB623102);the Key Fund Project of Sichuan Provincial Department of Education(No.14ZA0086);the Key Fund Project of Professional Scientific Research Innovation Team of Southwest University of Science and Technology(No.14tdfk01)

摘　　要：Through the comparison of calcination conditions between cement preclinkering technology and cement precalcining technology,we studied the characteristics of temperature field distribution of cement preclinkering technology systems including cyclone preheater,preclinkering furnace,and rotary kiln.We used numericalsimulation method to obtain data of temperature field distribution.Some results are found by system study.The ratio of tailcoalof cement preclinkering technology is about 70%,and raw mealtemperature can reach 1070 ℃.Shorter L/D kiln type of preclinkering technology can obtain more stable calcining zone temperature.The highest solid temperature of cement preclinkering technology is higher than 80 ℃,and high temperature region（〉1450 ℃）length is 2 times,which is beneficialfor calcining clinker and higher clinker quality.So cement preclinkering technology can obtain more performance temperature filed,which improves both the solid-phase reaction and liquid-phase reaction.Through the comparison of calcination conditions between cement preclinkering technology and cement precalcining technology,we studied the characteristics of temperature field distribution of cement preclinkering technology systems including cyclone preheater,preclinkering furnace,and rotary kiln.We used numericalsimulation method to obtain data of temperature field distribution.Some results are found by system study.The ratio of tailcoalof cement preclinkering technology is about 70%,and raw mealtemperature can reach 1070 ℃.Shorter L/D kiln type of preclinkering technology can obtain more stable calcining zone temperature.The highest solid temperature of cement preclinkering technology is higher than 80 ℃,and high temperature region（〉1450 ℃）length is 2 times,which is beneficialfor calcining clinker and higher clinker quality.So cement preclinkering technology can obtain more performance temperature filed,which improves both the solid-phase reaction and liquid-phase reaction.

关 键 词：cement preclinkering technology temperature field distribution kiln production heat balance solve the equation 

分 类 号：TQ172.6[化学工程—水泥工业] TU52[化学工程—硅酸盐工业]