一直以来火灾次生/伴生污染物的环境风险评估是各类企业编制环境风险评估报告的重点之一.以山东济南某废纸回收企业的原料仓库突发火灾为例,评估火灾次生/伴生污染物一氧化碳的环境风险.采用AFTOX模型模拟了突发火灾次生/伴生污染物一氧化碳在最不利气象条件下事故风险预测,同时提出火灾防范措施及事故应急处理措施.

风险物质泄漏的环境风险评估是各类企业编制环境风险评估报告的重点之一.氨水在燃煤电厂中的应用主要是作为烟气脱硝的还原剂,虽然其安全性高于液氨,但是存在的环境风险依然要引起足够的重视.以某燃煤电厂为例,分析氨水储罐泄漏产生的环境风险.采用AFTOX模型模拟了突发氨水泄漏引发液体蒸发的风险事故,以及不利气象条件下事故风险预测,提出氨水泄漏防范措施及事故应急处理措施.

针新能源电动汽车保有量大幅增加,报废电动汽车拆解环评应引起重视.以某公司电动汽车拆解项目环评工程分析为例,得出工程分析要点:建立报废电动车零部件销售台账,录入"全国汽车流通信息管理应用服务"系统.动力电池不属于危险废物,处置需委托相应资质单位.引爆后的安全气囊属于一般工业废物.启动电池为铅酸电池,在危险废物识别时不能遗漏废铅酸电池.

This paper introduces the structure, main structure parameters and working principle of hydrocyclone. The main use in coal preparation plant includes the coal slime grading, concentrated and coarse slime separation etc, the concentrated hydrocyclone, which realize the effective separation of coarse slime in high inlet pressure (0.3 ~ 0.4MPa), reduce the Coarse slime ash that the granularity is 1~0.25 mm from 27.41% to 8.51%; and increase the underlfow concentration from105.9g/l to 607.8g/l, the overlfow concentration is only 41.5g/l, it show that the concentration effect is better, the use of the concentrated hydrocyclone can simplify the process of coal preparation, reduce the operation cost of the coal preparation plant, and improve the efifciency of the coal preparation.

新阳能源选煤厂为了提高精煤产率,采用FCMC3500型旋流微泡浮选柱,增设了细煤泥浮选系统;并采取一些列优化和改造措施,实现了浮选系统高效运行,使选煤厂精煤产率提高3.96%,经济效益显著。