屯兰选煤厂煤尘治理研究与实践

发布时间：2018-03-09 15:34

本文选题：煤尘治理　切入点：袋式除尘器　出处：《煤炭科学技术》2016年08期 　论文类型：期刊论文

【摘要】：针对屯兰选煤厂由于生产环境封闭导致生产过程中产生的煤尘积聚易造成环境污染的问题,在分析选煤厂煤尘危害性的基础上,根据现场煤尘产生来源、产生方式、粒度级别的不同,以及对现场煤尘质量浓度分析,分别采取如下措施:针对煤尘的一次煤尘和二次煤尘产生环节特点,将振动筛、破碎机、给煤机、转载溜槽进行封闭,采用布袋式除尘器进行除尘;对重点煤转运环节以及二次煤尘产生环节,采用增设除尘喷雾方式进行除尘。改造前后煤尘质量浓度检测结果表明,经过布袋式除尘器和除尘喷雾系统的联合作用,系统正常开车时煤尘质量浓度降低3 mg/m~3左右,临时停车后启动过程中煤尘质量浓度平均降低2 mg/m~3左右,治理效果显著,有效改善了现场工作环境。
[Abstract]:In view of the problem that coal dust accumulation in production process is easy to cause environmental pollution due to the closed production environment in Tunlan Coal preparation Plant, on the basis of analyzing the harmfulness of coal dust in coal preparation plant, according to the source of coal dust generation on site and the way of producing coal dust, According to the difference of particle size and the analysis of coal dust quality and concentration, the following measures are taken: according to the characteristics of primary coal dust and secondary coal dust producing link, the vibrating screen, crusher, coal feeder and transfer chute are closed. The dust removal is carried out by using bag dust collector, the dust removal method is added to the key coal transfer link and the secondary coal dust generation link. The test results of coal dust quality concentration before and after the transformation show that, Through the combined action of bag dust collector and dust collection spray system, the coal dust mass concentration decreases about 3 mg/m~3 during the normal operation of the system, and the average coal dust mass concentration decreases about 2 mg/m~3 during the start-up process after temporary shutdown, and the control effect is remarkable. Improve the working environment effectively.
【作者单位】：太原理工大学;西山煤电(集团)有限公司屯兰选煤厂;
【分类号】：TD94;TD714.4

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