Technical Transformation of 6 000t/d Pyro-system for Energy Conversation and Consumption Reduction
1. Xinjiang Qingsong Building Materials and Chemical (Group) Co., Ltd. , Urumqi Xinjiang 830000, China; 2. Kezhou Qingsong Cement Co., Ltd. , Kezhou Xinjiang 845350, China;
3. Xinjiang Qingsong Innovation and Research and Development Co., Ltd. , Urumqi Xinjiang 830000, China; 4. Tianjin Cement Industry Design & Research Institute Co., Ltd. , Tianjin 300400, China
Abstract: The 6 000t/d cement clinker production line of a certain cement company has problems such as high electricity consumption and coal consumption, small capacity and low utilization rate of the calciner, high usage of ammonia water, and low heat recovery efficiency of the cooler. All operational indicators have approached the design level. Through the expansion of the calciner, construction of a self-denitrification system, expansion of the inlet area of each level of cyclone, replacement of a new type of spreading box, upgrading the inlet chamber to a low resistance and low dust inlet chamber, speeding up the rotary kiln, adopting the fourth generation cooler, and use high-thrust kiln burner, energy-saving and consumption reducing technological transformation has been carried out. After the technical transformation, the comprehensive energy consumption per unit product of clinker decreased by 4.9 kgce/t.cl，about 12 000 tons of standard coal can be saved annually, 30 000 tons of carbon dioxide emissions can be reduced, and 4 000 tons of ammonia water can be saved, achieving a comprehensive upgrade of production technology under the "energy consumption dual control".
