ＬＬ３－９离心脱水机是我厂６０年代的老产品，用户一直反映仗用效果不错，耐用、故障率又低，但也存在一些问题，总结我们制造厂家的经验及用户反映的问题，我们做了几项改进． １“中间轴装配”结构的改进 该产品经常有用户反映有漏油现象，且是在新产品使用１个多月以后开 LL3-9 centrifugal dewatering machine is the old product of our factory in 1960s. The user always reflects the good effect of battle, the durability is low, the failure rate is low, but there are some problems, summarizing the experience of our manufacturer and the problems reflected by users, we do A few improvements. 1 “intermediate shaft assembly” structure improvements The product often have users reflect the phenomenon of oil spills, and is more than a month after the use of new products to open