我厂润滑油车间白土装置有4台80Yj-55x2型油浆泵,用来输送白土精制油。由于装置生产工艺的特殊性,过滤机前的介质中均含有3％～5％的白土参与运行,若安装机械密封将引起严重的磨料磨损,因而油浆泵使用的是软填料密封,其结构形式如图1所示。软填料使用的是碳纤维填料,它具有优良的自润滑性,耐高温、低温和化学品性。 I plant the white clay plant lubrication device has four 80Yj-55x2-type slurry pump, used to transport clay refined oil. Due to the particularity of the production process of the device, 3% -5% of the clay in the medium before the filter is involved in the operation. If the mechanical seal is installed, it will cause serious abrasive wear, so the oil slurry pump uses a soft packing seal, and the structure Form shown in Figure 1. Soft filler is the use of carbon fiber filler, which has excellent self-lubricating, high temperature, low temperature and chemical resistance.