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1. 发明授权

US5320330A Gas tight lance closure at a cooling chimney hood for steel convertors 失效
标题翻译：用于钢铁转换器的冷却烟囱罩上的气密枪管闭合
公开(公告)号：US5320330A
公开(公告)日：1994-06-14
申请号：US40533
申请日：1993-03-30
申请人： Peter Then
发明人： Peter Then
IPC分类号： C21C5/40 , C21C5/46 , F27D3/16
CPC分类号： F27D3/16 , C21C5/40 , C21C5/4606 , C21C5/462 , Y02P10/283
摘要： The invention is directed to a gas tight lance closing device at a cooling chimney hood for steel converters. An opening is provided in the cooling chimney for a jetting lance, which latter can be raised and lowered. The diameter of the opening is dimensioned in such a way that an annular gap remains between the inner edge of the opening and the outer circumference of the jetting lance. In order to close the chimney opening toward the lance so as to be gas tight and to enable operation at an internal overpressure of more than 0.1 bar and against a correspondingly large negative pressure without letting gas escape or letting in air, it is preferred that a base plate be securely installed at the chimney opening, that an identically shaped cover plate which can press against the base plate be fastened at the lance so as to be movable and sealed relative to the lance body by stuffing box packing, and that the cover plate have sealing rings on its underside and can be placed on the base plate and lifted from the latter by a driving device arranged at the jetting lance.
摘要翻译：本发明涉及一种用于钢转换器的冷却烟囱罩处的气密枪枪关闭装置。在用于喷射枪的冷却烟囱中设置有开口，后者可以升高和降低。开口的直径的尺寸设计成使得环形间隙保持在开口的内边缘和喷射枪的外周之间。为了将烟囱开口朝着喷枪关闭以便气密，并且能够在超过0.1巴的内部超压下进行操作，并且在不使气体逸出或放入空气的情况下抵抗相当大的负压的情况下，优选的是基板牢固地安装在烟囱开口处，可以将冲压基板的相同形状的盖板固定在喷枪上，以便通过填料函填料相对于喷枪体可移动和密封，并且盖板在其下侧具有密封环，并且可以放置在基板上并且通过布置在喷射喷枪上的驱动装置从后盖抬起。

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