Comprehensive Analysis of Influence of CDQ Major Maintenance on Coke Quality
The coke quality fluctuated greatly during the CDQ major maintenance.This paper analyzed the coke making process,CDQ process and coke sieving and transportation process,and put forward some improvement suggestions and measures.In order to achieved full quenching during the CDQ major maintenance,three coke dry quenching furnaces beared the quenching capacity of four coke dry quenching furnaces,and the quenching time was shortened by more than 1h,which led to the fluctuation of coke quality.During the CDQ major maintenance,in order to ensured stable coke quality,it was necessary to assure the supply of high-quality cindery coal resources with quality and quantity guaranteed,and the coking time should be extended by 1～1.5 h according to the production rhythm of the coke oven to make up for the shortening of the quenching time of the dry quenching furnace.Meanwhile,the influence of unplanned maintenance on coking time should be reduced to create favorable process conditions for the stability of coke quality.
CDQ major maintenancecoal qualityquenching timebankingsize grading
NETL
NSTL
万方数据
