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湘乡氟化盐厂中和槽循环送料φ4″砂泵,过去用石灰乳中和时一直采用油浸石棉盘根,在改用粘土矿矿浆中和游离硫酸后,由于介质温度高、泥浆比重大,石棉油浸盘根已不适应,压盘根成了中和槽工的主要负担,由于盘根压不住,大量高温含酸泥浆外溅,既不安全又恶化了劳动条件,并且影响生产工艺的流水作业。该厂经反复研究,改用“挡浆水环橡胶密封”,效果很好。其作法是:在
Xiangxiang fluoride salt in the tank and the tank circulating feed φ4 “sand pump, lime milk used in the past has been the use of oil asbestos packing, the switch to clay ore and free sulfuric acid, the medium temperature is high, the mud weight Large, asbestos oil pan packing has not adapted to the pressure into the root and the trough of the main burden, because the packing can not hold, a large number of high temperature acid mud splashing, neither safe and aggravated the working conditions, and the impact Production process of water operations. The plant after repeated studies, switch to ”block water ring rubber seal", the effect is good. The practice is: at