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1.发明授权Arrangement for and a method of introducing particulate material into molten baths 失效将颗粒材料引入熔融槽中的布置方法和方法
公开(公告)号：US4042223A
公开(公告)日：1977-08-16
申请号：US699640
申请日：1976-06-24
IPC分类号： C22B9/20 , B22D1/00 , B22D21/02 , C21C5/46 , C21C5/48 , C21C7/00 , C21C7/072 , F27D3/16 , F27D3/18
CPC分类号： C21C7/0037 , C21C5/4613 , F27D3/18
摘要： A suspension of a particulate material in a carrier medium is introduced into a molten bath through a lance which has an inlet port, an outlet port and a passage communicating the inlet port with the outlet port. The flow-through cross-sectional area of the outlet port is smaller than the flow-through cross-sectional area of the passage so that the speed of flow of the suspension through the outlet port is higher than the speed of flow of the suspension through the passage and penetration of the molten bath into the outlet port is thereby prevented. The supension is introduced into the inlet port through a conduit having a smaller flow-through cross-sectional area than the passage so that the pulsations of the solution which occur in the conduit are damped in the passage. A duct may introduce pressurized medium into the region of the outlet port to thereby loosen the particulate material accumulated in the region of the outlet port. The lance may include a metallic tube and a lyer of refractory material surrounding the same, and a ceramic tubular element may form a continuation of the metallic tube downstream of the outlet port and having the same flow-through cross-sectional area as the latter.
摘要翻译： 颗粒材料在载体介质中的悬浮液通过具有入口，出口和将入口与出口连通的通道的喷枪引入熔池中。 出口的流通横截面面积小于通道的流通横截面面积，使悬浮液通过出口的流速高于悬浮液通过的流速 从而防止了熔融浴进入出口的通道和穿透。 通过具有比通道更小的流通横截面面积的导管将超声波引入入口，使得在通道中发生在溶液中的溶液的脉动被阻尼。 管道可以将加压介质引入出口的区域，从而松开积聚在出口区域中的颗粒材料。 喷枪可以包括金属管和围绕它的耐火材料的搅拌器，并且陶瓷管状元件可以在出口下游形成金属管的延续，并具有与之相同的流通横截面积。
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公开(公告)号：US3986865A
公开(公告)日：1976-10-19
申请号：US471073
申请日：1974-05-17
CPC分类号： C21C5/34 , C21C5/32 , C21C5/562 , Y02P10/216
摘要： A charge consisting of scrap, sponge iron, pellets and the like is admitted into a vertically arranged melting chamber so as to form a column therein. A burner lance generates a flame which melts the column from below so as to produce a melt and an FeO slag. A transportable and tiltable vessel is provided beneath the melting chamber and contains a quantity of pig iron. The melting chamber has an opening at the bottom thereof through which the melt and the slag flow into the vessel to form a mixture containing between 30 and 60 percent by weight of pig iron. Alloying elements and cooling agents are added to the mixture and the resulting molten mass is then at least partially refined in the vessel by blowing with oxygen. During the blowing operation, reaction of the slag and the pig iron occurs and a pourable steel having a desired composition is thereby obtained. The melting of the charge in the melting chamber is carried out without regard to the extent of reaction of the slag and of the pig iron which is required to produce steel of the desired composition.
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公开(公告)号：US4050683A
公开(公告)日：1977-09-27
申请号：US764918
申请日：1977-02-02
CPC分类号： C21C5/562 , C21C5/567 , F27B1/16 , F27B1/21 , Y02P10/216
摘要： Iron-containing materials are loaded into the top of a shaft furnace to form therein an upright column of the materials. A burner forms a flame above the floor of the furnace to heat the base of the column and thereby melt the materials at the base of the column into a liquefied-iron melt on the floor of the furnace and a layer of slag on the melt. In addition this flame formed by the burner forms a deposit in the furnace on which the column is supported. Slag is continuously withdrawn from the furnace at a location substantially level with the deposit and the melt is withdrawn from the furnace at a location below the layer of slag and is heated as it is withdrawn. This melt is withdrawn through an iron-drain conduit having an outlet end vertically positioned to be horizontally even with the lower surface of the slag and a refining vessel working inductively or by means of an electric arc may be provided in this outlet conduit for the continuous transformation of the liquefied iron into steel.
摘要翻译： 含铁材料被装载到竖炉的顶部，以在其中形成材料的立柱。 燃烧器在炉底上形成火焰，以加热塔的底部，从而将塔的底部的材料熔化成熔炉的地板上的液化铁熔体和熔体上的熔渣层。 此外，由燃烧器形成的这种火焰在炉子上形成沉积物，柱子被支撑在炉子上。 炉渣在与沉积物基本一致的位置处连续地从炉中取出，并且熔体在熔渣层下方的位置从熔炉中取出，并在其被抽出时被加热。 该熔体通过铁排放管道取出，该排水管道的出口端竖直地定位成水平地，即使是炉渣的下表面，并且可以在该出口管道中设置感应地或通过电弧工作的精炼容器用于连续的 液化铁转化为钢铁。
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公开(公告)号：US3982926A
公开(公告)日：1976-09-28
申请号：US473900
申请日：1974-05-28
CPC分类号： C21C5/562 , Y02P10/216 , Y10S266/90 , Y10S266/901
摘要： A charge consisting of scrap, sponge iron, pellets and the like is admitted into a vertically arranged melting chamber and forms a column therein. The leading end of the column is melted with an annular flame generated by means of an annular burner or a plurality of burners arranged circumferentially of the melting chamber. In this manner, a downwardly extending projection is formed within the confines of the periphery of the leading end of the column and this bears against the bottom of the melting chamber thereby supporting the column. An outlet for the molten material is provided in the bottom of the chamber and this is surrounded by a projection extending upwardly from the bottom of the chamber. The latter projection is effective for permitting the molten material to remain on the bottom of the chamber for a short period prior to its outflow from the chamber so that the molten material is superheated by the flame. It is of advantage when the dimensions of the projection in the leading end of the column are maintained sufficiently small to prevent substantial heat transfer from the molten material to the column.
摘要翻译： 由废料，海绵铁，丸粒等组成的装料进入垂直布置的熔化室中并在其中形成塔。 柱的前端通过环形燃烧器产生的环形火焰或者围绕熔融室周向布置的多个燃烧器熔化。 以这种方式，在柱的前端的周边的界限内形成向下延伸的突起，并且该凸起抵靠熔化室的底部，由此支撑柱。 用于熔融材料的出口设置在室的底部，并且由从室的底部向上延伸的突起围绕。 后者的投影对于允许熔融材料在其从腔室流出之前短时间内保持在室的底部是有效的，使得熔融材料被火焰过热。 当柱的前端中的突起的尺寸保持足够小以防止从熔融材料到柱的实质热传递时，这是有利的。
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公开(公告)号：US4083715A
公开(公告)日：1978-04-11
申请号：US689859
申请日：1976-05-25
摘要： Iron-containing materials are loaded into the top of a shaft furnace to form therein an upright column of the materials. A burner forms a flame above the floor of the furnace to heat the base of the column and thereby melt the materials at the base of the column into a liquefied-iron melt on the floor of the furnace and a layer of slag on the melt. In addition this flame formed by the burner forms a deposit in the furnace on which the column is supported. Slag is continuously withdrawn from the furnace at a location substantially level with the deposit and the melt is withdrawn from the furnace at a location below the layer of slag and is heated as it is withdrawn. This melt is withdrawn through an iron-drain conduit having an outlet end vertically positioned to be horizontally even with the lower surface of the slag and a refining vessel working inductively or by means of an electric arc may be provided in this outlet conduit for the continuous transformation of the liquefied iron into steel.
摘要翻译： 含铁材料被装载到竖炉的顶部，以在其中形成材料的立柱。 燃烧器在炉底上形成火焰，以加热塔的底部，从而将塔的底部的材料熔化成熔炉的地板上的液化铁熔体和熔体上的熔渣层。 此外，由燃烧器形成的这种火焰在炉子上形成沉积物，柱子被支撑在炉子上。 炉渣在与沉积物基本一致的位置处连续地从炉中取出，并且熔体在熔渣层下方的位置从熔炉中取出，并在其被抽出时被加热。 该熔体通过铁排放管道取出，该排水管道的出口端竖直地定位成水平地，即使是炉渣的下表面，并且可以在该出口管道中设置感应地或通过电弧工作的精炼容器用于连续的 液化铁转化为钢铁。
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