苏联黑色冶金研究所和马凯耶夫钢铁公司研制和采用在平炉出钢时通过浸入式喷枪用氮处理罐中钢水的工艺。为了在操作中给罐中钢水吹氮,具有两个固定装置,固定装置配置在铸锭间一侧的工作平台上,位于250t 的1号和7号单流槽炉后墙旁边。经过长期的操作表明,固定装置工作相当可靠,且维护简单。固定装置的主要基本特点,是它的所有部件配置在工作平台的上方。在冶炼下列牌号钢时,金属在罐中用氮处 The Soviet Union Black Metallurgy Institute and Mackayev Iron and Steel Company developed and adopted the use of submerged lances to treat molten steel in tanks with nitrogen during open hearth blasting. In order to blow nitrogen from the tank during operation, there are two fixing devices, which are arranged on the working platform on one side of the ingot, next to the rear wall of No. 1 and No. After long-term operation shows that the fixture work is quite reliable, and easy to maintain. The main feature of the fixture is that all of its components are placed above the workbench. When smelting the following grades of steel, the metal is nitrogen in the tank