三效蒸发工艺处理酸性废水装置故障分析与措施

介绍了金川集团有限公司镍冶炼厂酸性废水处理系统三效蒸发工艺流程的运行情况,针对运行过程中三效分离罐出现的故障进行了分析并提出了解决措施.通过对三效蒸发器内的结垢物进行组分分析,确定结垢物的主要成分为硅酸盐,采用氢氟酸对三效蒸发器进行清洗取得了较好的效果.为保证三效蒸发装置长周期平稳运行,提出定期对过滤器进行清洗保证进入...

Fault analysis and measures of acid wastewater treatment device by three-effect evaporation process

The operation of three-effect evaporation process of acid wastewater treatment system in Nickel Smelting Plant,Jinchuan Group Co.,Ltd.is introduced,the fault of three-effect separator during operation is analyzed,and the treatment methods are put forward.By analyzing the components of the scale in the three-effect evaporator,it is determined that the main component of the scale is silicate.Hydrofluoric acid is used to clean the three-effect evaporator,and good results are achieved.In order to ensure the long-term stable operation of the three-effect evaporator,it is proposed to clean the filter regularly to ensure the filtering effect of the vulcanized liquid entering the three-effect evaporator,and to clean the three-effect evaporator timely according to the liquid level fluctuation of the three-effect separator in the daily production process.