我局南选厂TNB—18周边传动式浓缩机由于长期使用,加上原设计的某些缺陷,行走机构经常打滑,支承钢环断面磨成脊形,钢轮亦磨成扁圆,常需人推、棍撬、撒砂才勉强爬行,这种现象在冰冻天气更为严重。 1977年将原工字钢支承钢环改为18kg/m钢轨,使用两年后又重复出现打滑现象,迫使钢轮两三个月就得焊补加工,轮轨底板经常要刹楔,严重影响生产。 Due to long-term use and some defects of the original design, the running gear often skids and supports the steel ring section to grind into a ridge shape. The steel wheels are also ground into an oblate, often requiring people Push, stick pry, sprinkle sand barely crawl, this phenomenon is more serious in freezing weather. In 1977 the original I-beam steel rings to 18kg / m rail, the use of two years after repeated skidding phenomenon, forcing two or three months to have welding welding processing, wheel-rail floor often have to brake wedge, a serious impact produce.