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一、设备概况~#8炉是1979年12月投产的我厂第一台国产400t/h中间再热、半露天布置、四角喷燃的50410型“三化”燃煤锅炉。其除尘器原设计为洗涤栅水膜式除尘器。鉴于洗涤栅运行中容易堵塞和损坏,故在基建时就未安装格栅棒,投产前仅对捕滴器水膜形成情况进行过冷态试验观察,发现水膜形成很不均匀,有的地方无水膜,有的地方却形成“瀑布”,证明铸石板表面高低不平度过大,溢流槽的溢流口水平度较差。由于基建时的先天不足,故使得除尘效果很差,在1981年进行第一次大修时,揭开吸风机蜗壳检查,发现叶轮和进风圈(导流器)的磨损情况较为严重,我们在第一次大修中就更换了叶轮和进风圈,在新的叶轮和进风圈内加装了防磨护板。大修后我们于1982年10月进行除尘器效
First, the equipment overview ~ # 8 furnace is put into operation in December 1979, the first domestic plant 400t / h intermediate reheat, semi-outdoor layout, four corners of the 50410-type “three” coal-fired boilers. The original design of the filter for the washing water film filter. In view of the operation of the washing grid is easy to plug and damage, so in the infrastructure did not install the grid rods, put into production only before the water film forming the case of the experimental observation of cold water and found that the water film formation is very uneven, and some places No water film, and in some places it formed a “waterfall” to prove that the unevenness of the surface of the cast slab is too large and the overflow level of the overflow groove is poor. Due to infrastructure deficiencies, it makes the dust removal effect is poor, the first overhaul in 1981, opened the suction volute volute inspection and found that the impeller and the air intake (deflector) wear more serious, we are at The first overhaul in the replacement of the impeller and into the air ring, the new impeller and into the air ring with a wear guard. After the overhaul, we conducted the dust remover effect in October 1982