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通过投用超滤装置对一步法料液进行预过滤,利用凝胶处理高含杂循环液等工艺优化措施,以解决一步法超级净化装置投用过程中存在的通量下降快、料洗周期短、能耗高等问题。结果表明:超滤装置的投用,能去除料液中部分水不溶物,提高了进入超级净化装置的料液的质量;超滤装置投用后,超级净化装置平均运行时间缩短,料洗周期有所延长。另外,通过凝胶处理超级净化装置高含杂循环液,整体除杂能力满足工艺需求,且每天可减少48.74 m3纯水消耗,达到了预期的设想。
Through the use of ultrafiltration device for one-step pre-filtration of liquid feed, the use of gel treatment of high content of circulating fluid and other optimization measures to solve the one-step super-purification device put into use during the flux decreased rapidly, feed cycle Short, high energy consumption issues. The results show that the ultrafiltration unit can remove part of the water insoluble matter and improve the quality of the liquid entering the super purification unit. After the UF unit is put into operation, the average running time of the super purification unit is shortened, Has been extended. In addition, through the gel treatment of super-purifying devices with high circulating fluid, the overall impurity removal ability to meet the process requirements, and daily consumption of 48.74 m3 water can be reduced, reaching the expected scenario.