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1.发明授权Metallurgical vessel and method of making the refractory lining of such vessels 失效冶金容器和制造这种容器的耐火衬里的方法
公开(公告)号：US5340088A
公开(公告)日：1994-08-23
申请号：US113735
申请日：1993-08-30
摘要： The invention relates to a metallurgical vessel, in particular a transport ladle or a treating ladle, for the production of steel with a bottom (2b) having a refractory lining (3) with a basic working layer (5). In order to create a durable lining it is provided that the working layer (5) consists at least in part of dry basic bulk material, the upper side of which is covered, before the vessel (1) is heated for the first time, by a chemically hardened protective layer (6) and which, after the vessel (1) has been filled, is partly present as a monolithic layer or the upper side of the working layer (5) is covered, before the vessel (1) is charged for the first time, by a monolithically fritted basic layer formed by heating the bulk material. The invention furthermore relates to a method of making the refractory linings of such vessels.
摘要翻译： 本发明涉及一种冶金容器，特别是用于生产钢的冶金容器，特别是用于具有带有基础工作层（5）的具有耐火衬层（3）的底部（2b）的钢的输送钢包或处理钢包。 为了形成耐用的衬里，规定工作层（5）至少部分地由容器（1）第一次加热之前至少部分地被干燥的基本散装材料覆盖，其上侧被覆盖，通过 化学硬化的保护层（6），并且在容器（1）被填充之后，在容器（1）被充电之前部分地作为整体层存在或工作层（5）的上侧被覆盖 首次通过加热散装材料形成的单片烧结基层。 本发明还涉及制造这种容器的耐火衬里的方法。
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2.发明授权
公开(公告)号：US5067693A
公开(公告)日：1991-11-26
申请号：US492140
申请日：1990-03-13
CPC分类号： C21C5/5217 , B22D1/00 , B22D1/005 , Y02P10/216
摘要： Electric arc oven for melting scrap iron of the type comprising a vat lined with an inner coating made of refractory material which is called the sole of the oven, lateral walls, a vault capping the upper opening of the vat, openings provided in the vault through which the electrodes extend, and a tapping nozzle or eccentric tapping hole. In this oven, the sole is provided with at least one device for injecting gas to stir the molten metal. The injection device includes a low injector formed of a compact block made of dense non-porous refractory material through which extend one or a plurality of, preferably less than 50, hollow metallic tubes or slits or channels along its entire height in the direction of gaseous blowing and permitting gas to pass therethrough. The low injector is surmounted by a body of porous rammed earth whose initial thickness is 50 to 300 mm, is composed of unshaped refractory material in the form of granular particles having a diameter of at least 10 mmg, and the granulometry of the porous rammed earth has a permeability between 100 and 300 Namoperm after fritting under heat. A process of melting scrap iron using this oven is also disclosed. The gas is sent in the molten metal by first passing through the low injector then through the layer of porous rammed earth, Gas flows through at a feeding pressure of at most 10 bars and a flow rate of at least 20 Nm.sup.3 /h after fritting under heat.
摘要翻译： 用于熔化废铁的电弧炉，其包括一个内衬有由耐火材料制成的内部涂层的桶，所述内部涂层被称为烘箱的底部，侧壁，覆盖桶的上部开口的保险库，在库中设置的开口通过 电极延伸，以及攻丝喷嘴或偏心攻丝孔。 在该烘箱中，鞋底设置有至少一个用于喷射气体以搅拌熔融金属的装置。 注射装置包括由致密无孔耐火材料制成的紧凑块形成的低喷射器，通过该喷射装置沿气体方向的整个高度延伸一个或多个，优选小于50个中空的金属管或狭缝或通道 吹气并允许气体通过。 低喷射器由初始厚度为50至300mm的多孔夯土体组成，由直径至少为10mm的颗粒形状的不定形耐火材料组成，多孔夯土的粒度 在热处理后具有100至300纳米管的渗透率。 还公开了使用该烘箱熔化废铁的方法。 气体通过首先通过低喷射器然后穿过多孔夯土的一部分被送入熔融金属中，气体以最多10巴的进料压力流过，并且在熔化之后的流速为至少20Nm 3 / h 热。
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公开(公告)号：US4378106A
公开(公告)日：1983-03-29
申请号：US280509
申请日：1981-07-06
摘要： A refractory gas permeable structural unit for blowing a gas into a metal treatment container and through its casing, has a refractory gas permeable stone, a first metal housing sealingly surrounding the stone, a second metal housing arranged at a distance from the first metal housing, a refractory substantially gas impermeable filler material provided between the first and second metal housings, and at least one connection and a distribution chamber provided at the end face of the stone.
摘要翻译： 一种用于将气体吹入金属处理容器并通过其壳体的难熔气体渗透结构单元，具有难熔气体渗透性石材，密封地围绕石头的第一金属壳体，与第一金属壳体一定距离设置的第二金属壳体， 提供在第一和第二金属外壳之间的难熔基本不透气的填充材料，以及设置在石头端面处的至少一个连接和分配室。
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