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我厂 3号电炉(10吨)建于70年代,由于结构的原因和磨损,泄漏日趋严重,五年中发生火灾10多次。因此,趁1988年3号电炉搬迁新址之机,我们对液压系统进行了改造并使用了新的介质——乳化液。这次改造不仅节能降耗效果显著,而且消除了火灾隐患。 乳化液是以5％的MTD乳化油和95％的软水配制而成,具有抗燃性好、成本低和无污染等优点,但它的运动粘度很低,只1.2～1.3cst。乳化液的粘度是30号机油的1/25,即同一缝隙的泄漏量为机油的25倍。因此,解决液压系统的泄漏问题是这次用乳化液取代机油的关键,而解决泄漏的关键则是对执行元件油缸和液压控制阀进行改造。 这里,只谈油缸密封的改造。
Our factory No. 3 electric furnace (10 tons) was built in the 70s. Due to the structural reasons and wear and tear, the leakage is becoming more and more serious. More than 10 fires occurred in five years. Therefore, taking advantage of the relocation of the No. 3 EAF in 1988, we have reworked the hydraulic system and used a new media, the emulsion. This transformation not only significant energy saving effect, but also eliminates the fire hazard. The emulsion is formulated with 5% MTD emulsified oil and 95% soft water. It has the advantages of good flame resistance, low cost and no pollution. However, its kinematic viscosity is very low, only 1.2 ~ 1.3cst. The viscosity of the emulsion is 1/25 of the No. 30 oil, that is, the same gap 25 times the amount of oil leakage. Therefore, to solve the problem of hydraulic system leakage is the key to replace the oil with emulsion, and the key to solve the leakage is the implementation of the components of the cylinder and hydraulic control valve to transform. Here, only talk about tank sealing transformation.