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我厂脱蜡车间的16台转鼓真空过滤机,均是苏产或国内仿苏产的落后机型,自1964年投产以来,在其上盖与下壳体法兰之间、前后轴封,下壳体方法兰接头以及其它焊缝开裂部位,一直存在不同程度的泄漏,以致造成溶剂耗损严重,机内含氧量超标(部规定5%,实际达16%)。这不仅是我厂不安全的隐患,而且也是设备完好率和开工率一直很低的原因。 外廓尺寸为5960×3632毫米,四周共有M22螺栓122个的转鼓真空过滤机中法兰,是我厂结构尺寸最大的静密封点。虽然壳体内压不高(一般小于0.1kgf/cm~2表压,经常还是负压),但由于密封面结构尺寸大,加之上下壳体方法兰的变形以及密封垫料不
The 16 drum vacuum filters of the dewaxing workshop in our factory are all the backward models of the Soviet Union or the Soviet Union. Since its commissioning in 1964, between its upper cover and the lower shell flange, the front and rear shaft seals , The lower shell flange joints and other cracks in the weld seam, there have been different levels of leakage, resulting in serious solvent depletion, the oxygen content of the machine exceeded (the provisions of 5%, the actual 16%). This is not only the hidden danger of our factory insecurity, but also the reason that the equipment intact rate and operating rate have been very low. Dimensions of 5960 × 3632 mm, a total of 122 M22 bolts around the drum vacuum filter flange, is the largest size of our plant static sealing point. Although the internal pressure is not high (generally less than 0.1kgf / cm ~ 2 gauge pressure, often negative pressure), but the sealing surface structure size, combined with upper and lower shell flange deformation and gasket material is not