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我厂改造前采用的是浸出熟料过滤分离,滤饼六级逆流沉降分离洗涤流程,在生产运行中,由于泥浆沉降时易在槽底产生浮泥,致使任何一级沉降槽因槽底浮泥过多出现故障,严重影响该流程的正常运行.1994年,在800 t/a LiOH·H_2O扩建工程中,针对原有流程中所存在的不足,借鉴兄弟厂家的经验,充分对比论证,挖掘原有φ7.5 m沉降槽潜力,增设并改造过滤系统,边生产边改造,成功地完成了浸出熟料浆二段过滤分离二段沉降分离的三级逆流洗涤工艺的技术改造,该系统改造后的产能可由原产LiOH·H_2O 850t/a增加到1500～16000 t/a,运行稳定可靠,取得了预期的效果.改造后的工艺流程如图1.
Before the transformation of our plant is leaching clinker filtration separation, filter cake six countercurrent sedimentation separation washing process, in the production run, due to the settlement of mud prone to produce mud at the bottom of the tank, resulting in any level of sedimentation tank floating due to the tank floor In 1994, 800t / a LiOH · H_2O expansion project, in view of the existing problems in the existing process, learn from the experience of brothers and manufacturers, the full contrast demonstration, excavation The original φ7.5 m settling tank potential, the addition and transformation of the filtration system, while the production side of the transformation, the successful completion of the leaching clinker pulp secondary separation and separation of the two stages of the three-stage countercurrent washing technology transformation, the system transformation After the production capacity can be from the native LiOH · H_2O 850t / a increased to 1500 ~ 16000 t / a, the operation is stable and reliable, and achieved the desired results. After the transformation of the process shown in Figure 1.