煤制油选煤厂生产系统优化 --

为解决破碎过程中产生大量次生煤泥带来的一系列问题,在神东煤制油选煤厂现有生产工艺基础上对煤泥系统进行优化,分析原煤分级筛的分段式改造,更换鸭嘴式脱泥喷头以及使用新型药剂等对煤泥生产系统的影响。结果表明,改造后每月煤泥量减少约1. 6万t,煤泥系统每天运行时间减少6 h以上,入选吨煤介耗由1. 35 kg/t降至0. 87 kg/t以下,电耗由1. 57元降低到1. 43元,每年增加经济效益3 000多万元,增强了生产系统对原煤煤质的适应能力。 In order to solve a series of problems caused by a large amount of secondary slime produced in the crushing process,the slime system was optimized on the basis of the existing production technology of Shendong coal-to-oil coal preparation plant.The effects of segmental modification of raw coal grading screen,replacement of duckbill desliming nozzle and use of new medicament on coal slurry production system were analysed.The results show that the amount of coal slime is reduced by about 16 000 tons per month,the daily operation time of the slime system is reduced by more than 6 hours,the coal medium consumption of washing ton is reduced from 1.35 kg/t to 0.87 kg/t,and the electricity consumption is reduced from 1.57 yuan to 1.43 yuan. It can increase economic benefit by more than 30 million yuan each year,and enhances the adaptability of the production system to the coal quality of raw coal