兰炭生产中内热式直立炉工艺的能耗和排放研究与优化  

Research and optimization of energy consumption and emission of internal heating vertical furnace in semi-coke production

作　　者：谢小兵 肖建生 张相平 邢永平 何方 Xie Xiaobing;Xiao Jiansheng;Zhang Xiangping;Xing Yongping;He Fang(Xi’an Ruixing Energy Technology Co.,Ltd.,Xi’an 710075,China;ACRE Coking&Refractory Engineering Consulting Corporation(Dalian),MCC,Dalian 116085,China;Shaanxi Coal and Chemical Industry Group Co.,Ltd.,Xi’an 710100,China)

机构地区：[1]西安睿星能源科技有限公司,西安710075 [2]中冶焦耐(大连)工程技术有限公司,大连116085 [3]陕西煤业化工集团有限公司,西安710100

出　　处：《燃料与化工》2024年第6期17-20,共4页Fuel & Chemical Processes

摘　　要：内热式直立炉工艺是现行兰炭生产普遍采用的工艺技术,但其存在能耗高、污染严重的问题,严重制约了行业的健康发展。通过分析得出其“能耗和污染”问题的主要根源在于熄焦环节采用的是湿法熄焦工艺,并针对其成因提出了改进措施——采用“全封闭、干熄焦、回收兰炭余热”等工艺。改进后,生产每吨成品兰炭(无水)能耗可由173.09 kgce(含下游兰炭干燥)降低至111.19 kgce;节省熄焦耗水0.54 t;减少污水0.29 t。The internal heating vertical furnace process is the only reliable technology for the production of semi-coke,but its high energy consumption and serious pollution have seriously impeded the development of the semi-coke industry.In this paper,it is concluded that the cause of the problem of energy consumption and pollution is rooted at coke wet quenching,thus the measures for improvement are put forward,such as“full enclosure,coke dry quenching,and semi-coke waste heat recovery”,etc..After the improvement,the energy consumption per ton of semi-coke(anhydrous)can be reduced from 173.09 kgce to 111.19 kgce(including downstream semi-coke drying),saving 0.54 t water consumption for wet quenching and reducing sewage by 0.29 t.

关 键 词：兰炭微水熄焦 能耗 污染 改进措施 全封闭 干熄焦 

分 类 号：TQ520.6[化学工程—煤化学工程]