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中小型化铁炉上的热风炉胆,使用一段时间后,由于反复热胀冷缩的结果,两端部普遍产生裂纹,大部分热风从裂缝跑掉,严重地影响铁水温度。为防止和延缓炉胆开裂,各厂工人、技术人员都想了很多办法,减缓炉胆急剧地热胀冷缩,来延长使用寿命,减少维修工作量。我们根据无缝钢管能承受较大的切向压力和具有耐热胀冷缩性能的特点,在炉胆两端部最易开裂处,开成V型缺口,把φ12
Small and medium-sized iron stove on the hot blast furnace gall, after a period of time, due to repeated thermal expansion and contraction results, both ends of the crack, the majority of hot air run away from the cracks, seriously affecting the hot metal temperature. In order to prevent and delay the furnace cracking, the factory workers, technicians have thought a lot of ways to slow down the rapid expansion and contraction furnace, to extend the service life and reduce maintenance workload. According to our seamless steel tube can withstand greater tangential pressure and has the characteristics of resistance to thermal expansion and contraction of the most easy to crack at both ends of the furnace, opened into a V-shaped gap, the φ12