The present invention relates to a sealing ring inflated BOF Gas, which belongs to the metallurgy field. It includes BOF shell, liquid steel, oxygen lance, Lance hole, converter gas collecting cover, the cover top gas inlet, gas blower, nitrogen header, nitrogen gas pressure regulating valve, the sealing ring emptying valve, the sealing ring and the oxygen lance of converter mouth sealing ring. BOF steelmaking, oxygen lance blowing out from the pure oxygen in liquid steel in converter gas generated by the chemical reaction in the converter pool to converter gas collecting cover, a gap formed in the converter mouth and converter gas collection gap and oxygen lance and lance hole cover is the nitrogen pressure regulating valve to the converter mouth the sealing ring and the sealing ring of the nitrogen oxygen lance bulging, isolate gas and gas to the outside, when the gas fan from the top of the cover gas suction extraction of converter gas, prevent gas from converter gas collecting cover and air leakage into the converter gas collecting cover for sealing.
【技术实现步骤摘要】
本专利技术的技术名称是充气式顶吹转炉煤气密封环,属冶金领域。它包括顶吹转炉 外壳、钢液、吹氧枪、氧枪孔、转炉煤气收集罩、罩顶煤气吸入口、煤气风机、氮气总管、氮气 调压阀、密封环排空阀、氧枪密封环及转炉口密封环。
技术介绍
目前国内外冶金企业炼钢多数采用纯氧顶吹转炉,在炼钢生产过程中氧气在钢液 中反应所产生的可燃气体一转炉煤气,通常是用置于转炉上方的转炉煤气收集罩来回收。 为防止空气混入转炉煤气中引起爆炸事故,在转炉煤气收集罩内要维持正压,并且使转炉 煤气收集罩与转炉口保持一定距离,这样势必造成部分煤气泄漏,以致转炉煤气回收率通 常只有35%至60%,造成大量煤气损失。
技术实现思路
为了弥补现有技术的不足,本专利技术将提供一种充气式顶吹转炉煤气密封环,氧枪 密封环及转炉口密封环分别置于氧枪孔及转炉煤气收集罩外圆,它们不工作时贴转炉煤气 收集罩外圆下沿壁及氧枪孔内壁、且呈凹陷状不影响吹氧枪及转炉煤气收集罩的下插及运 动,工作时充灌低温高压氮气后氧槍密封环及转炉口密封环鼓胀起来,将高炉煤气收集罩 内的煤气与外部空气隔开,高炉煤气收集罩与转炉口间的间隙及吹氧枪与氧枪孔的间 ...
【技术保护点】
1.一种充气式顶吹转炉煤气密封环,它包括顶吹转炉外壳1、钢液2、吹氧枪3、氧枪孔4、转炉煤气收集罩5、罩顶煤气吸入口6、煤气风机7、氮气总管8、氮气调压阀9、密封环排空阀10、氧枪密封环11及转炉口密封环12;转炉煤气收集罩5置于转炉外壳1上方,吹氧枪3穿过转炉煤气收集罩5顶上的氧枪孔4插入转炉钢液2中;转炉煤气收集罩5的边缘上固定有转炉口密封环12,氧枪孔4上也固定着氧枪密封环11;氮气总管8分别与两个氮气调压阀9的入口相联通固结,而氮气调压阀9的出口与分别与转炉口密封环12及氧枪密封环11的进气端相联通固结,转炉口密封环12及氧枪密封环11的排气端分别与密封环排空阀10相联通固结。
【技术特征摘要】
【专利技术属性】
技术研发人员:童明伟,胡鹏,童师颖,秦增虎,
申请(专利权)人:重庆大学,
类型:发明
国别省市:85
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