煤矸石高效利用系统在降低水泥烧成煤耗中的应用
Introduction to the application of efficient utilization system of coal gangue in reducing coal consumption in cement burning
姚艳飞 1王旺军2
作者信息
- 1. 西安建筑科技大学材料科学与工程学院,陕西 西安 710055
- 2. 民和祁连山水泥有限公司,青海 海东 800810
- 折叠
摘要
为降低水泥生产煤耗,同时实现煤矸石固废的高效高价值利用,设计出煤矸石高效利用系统.系统将煤矸石单独粉磨后送入分解炉内燃烧,喂入分解炉内的煤矸石粉量为3 t/h时,煤矸石带入的热量为3.82 kg/t;此时,熟料烧成热耗降低了 3.32 kg/t,计算得煤矸石粉的热效率为86.95％,节煤效益为393元/h;去除煤矸石粉加工成本后,可增加经济效益为123元/h,折合单位熟料生产成本降低0.95元/t.
Abstract
To reduce coal consumption in cement production and achieve efficient and high-value utilization of coal gangue solid waste,a coal gangue efficient utilization system is designed.The system separately grinds coal gangue and sends it into the decomposi-tion furnace for combustion.When the coal gangue powder fed into the decomposition furnace is 3 t/h,the heat brought in by the coal gangue is 3.82 kg/t,and the heat consumption of the clinker during firing is decreased by 3.32 kg/t.Thermal efficiency of coal gangue powder is 86.95％,and benefit generated by coal saving is 393 yuan/h.After removing the processing cost of coal gangue powder,the economic benefits can be increased by 123 yuan/h,which is equivalent to a reduction of 0.95 yuan/t in unit clinker production cost.
关键词
煤矸石/熟料烧成热耗/水泥Key words
Gangue/heat consumption of clinker burning/cement引用本文复制引用
基金项目
陕西省科学技术研究计划(2022 KXJ-008)
陕西省科学技术研究计划(2022 GY-418)
陕西省科学技术研究计划(2023 GXLH-05)
陕西省科学技术研究计划(2023JBGS-19)
陕西省教育厅重点研发项目(20JY040)
出版年
2024
NETL
NSTL
万方数据