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1故障现象我公司埃塞俄比亚工地一座CSD2500型沥青搅拌站出现沥青加温时间长,沥青温度上不去故障,清洗滤网发现有胶状物质,导热油未见减少。2故障分析根据故障现象,分析故障原因可能有两点:一是沥青进入了导热油管内,二是导热油炉温控器出现问题。针对第一种情况,因为导热油经过加温后流动,其温度高于沥青温度,因导热油管内的压力应当大于外界压力,所以沥青是难以进入导热油管内的,如果导热油管路出现破漏,也只能是导热油进入沥青中,而且导热油油量未减少,说明导热油
1 Symptom A site in Ethiopia, our company, a CSD2500 asphalt mixing plant appeared long time for bitumen warming. The temperature of bitumen did not go wrong. The gypsum material was found on the filter screen, and the heat-conducting oil was not reduced. 2 Failure Analysis According to the phenomenon of failure, analysis of the causes of failure may have two points: First, asphalt into the heat pipe, the second is the thermal oil thermostat problems. For the first case, because the HTF flows after being warmed, the temperature is higher than the temperature of the asphalt. Because the pressure in the HTF should be greater than the outside pressure, it is difficult for the asphalt to enter the HTF. If the HTF pipeline leaks , It can only be heat-conducting oil into the asphalt, and the heat-conducting oil did not reduce, indicating that the heat-conducting oil