-
公开(公告)号：US4456477A
公开(公告)日：1984-06-26
申请号：US498863
申请日：1983-05-27
申请人： Seiichi Masuda , Tohru Matsuo , Yoshimichi Ohkita , Takeo Aoki , Hidemasa Nakajima , Shozo Okamura , Takeyuki Hirata , Shoji Anezaki
发明人： Seiichi Masuda , Tohru Matsuo , Yoshimichi Ohkita , Takeo Aoki , Hidemasa Nakajima , Shozo Okamura , Takeyuki Hirata , Shoji Anezaki
摘要： A process for producing an ultra-low phosphorus steel containing 0.010% or less of phosphorus is disclosed, which comprises charging a desiliconized pig iron into a top- and bottom-blowing oxygen converter, introducing a slag-forming agent in a powdered form onto the molten iron together with the top-blowing oxygen and introducing a bottom-blowing gas selected from the group consisting of an inert gas, nitrogen gas, oxygen gas, carbon monoxide gas, carbon dioxide gas and mixtures thereof during the oxygen top-blowing or during both the oxygen top-blowing and the subsequent tapping.
摘要翻译： 公开了一种含有0.010％以下的磷的超低磷钢的制造方法，其特征在于，将脱硅生铁装入上下吹氧转化器中，将粉末形成剂引入到 熔融铁与顶吹氧气一起引入，并且在氧气吹制期间或在氧气吹入期间引入选自惰性气体，氮气，氧气，一氧化碳气体，二氧化碳气体及其混合物的底吹气体 氧气顶吹和随后的攻丝。
-
公开(公告)号：US4389246A
公开(公告)日：1983-06-21
申请号：US290587
申请日：1981-08-06
CPC分类号： C10J3/57 , C10J3/08 , C10J3/74 , C10J2200/152 , C10J2300/0906 , C10J2300/093 , C10J2300/0943 , C10J2300/0946 , C10J2300/0956 , C10J2300/0959 , C10J2300/0969 , C10J2300/0976 , C21C2250/02 , Y10S75/958
摘要： In a process for the gasification of solid carbonaceous material such as coal, powdered coal is top-blown onto a molten iron bath stored in a furnace through a non-submerged lance toward a hot spot formed by means of a jet of oxygen and steam top-blown through a non-submerged lance, coal being blown by means of a carrier gas, and flux is optionally added into the furnace by the lump or blown toward the hot spot, thereby the coal being gasified. The ratio L/L.sub.o of the depression depth L of the molten iron bath to the molten iron bath depth L.sub.o is maintained from 0.05 to 0.15, and the blowing velocity of the solid carbonaceous material is maintained from 50 to 300 m/sec so as to suppress the forming of an adhered mass in the furnace. A stirring gas is blown through a bottom nozzle to stir the molten iron bath.
摘要翻译： 在煤等固体碳质材料气化的过程中，将粉煤通过非浸没式喷枪向存储在炉中的铁水浴顶吹到通过氧气和蒸汽顶部形成的热点 通过非浸没式喷枪吹入，煤通过载气吹送，并且任选地通过块将助熔剂加入到炉中或者吹向热点，从而使煤气化。 铁水槽的凹陷深度L与铁水浴深度Lo的比L / Lo保持在0.05〜0.15，固体碳质材料的吹入速度保持在50〜300m /秒， 抑制在炉中形成附着物。 将搅拌的气体吹过底部喷嘴以搅拌铁水浴。
-
公开(公告)号：US4522650A
公开(公告)日：1985-06-11
申请号：US537025
申请日：1983-09-29
申请人： Hidemasa Nakajima , Shozo Okamura , Masanobu Sueyasu , Sakae Furujho , Kohji Okane , Shoji Anezaki
发明人： Hidemasa Nakajima , Shozo Okamura , Masanobu Sueyasu , Sakae Furujho , Kohji Okane , Shoji Anezaki
CPC分类号： C21B13/0013 , C21C5/28 , C21C5/35 , Y02P10/136
摘要： Herein is disclosed a process for producing an alloy of low phosphorus content by means of a furnace equipped with a lance for injection. The process is characterized by producing an alloy of low phosphorus content and at the same time by gasifying the carbonaceous material.The process comprises the steps of:forming a bath of molten metal by pouring a molten metal in the furnace, said molten metal containing not more than 0.040% of phosphorus;injecting by means of said lance into said bath of molten metal a carbonaceous material together with a gasifying agent to gasify the carbonaceous material with the heat of the bath of molten metal and to increase the carbon content of the bath of molten metal, said carbonaceous material containing not more than 0.035% of phosphorus;adding to said bath of molten metal an alloying element to react with the molten metal thereby forming an alloy; andrecovering the formed gas and, at the same time, obtaining the alloy of low phosphorus content.The process is suitable for producing Cr steel, Mn steel and Ni steel.
摘要翻译： 本文公开了一种通过装备有注射用喷枪的炉来制造低磷含量的合金的方法。 该方法的特征在于生产低磷含量的合金，同时通过气化碳质材料。 该方法包括以下步骤：通过将熔融金属倒入炉中而形成熔融金属浴，所述熔融金属含有不超过0.040％的磷; 通过所述喷枪将所述喷枪喷射到所述熔融金属浴中，将碳质材料与气化剂一起用熔融金属浴的热量气化碳质材料并增加熔融金属浴的碳含量，所述碳质材料 含磷不超过0.035％ 向所述熔融金属浴中加入合金元素以与熔融金属反应从而形成合金; 并回收形成的气体，同时获得低磷含量的合金。 该工艺适用于生产Cr钢，Mn钢和Ni钢。
-
公开(公告)号：US4738688A
公开(公告)日：1988-04-19
申请号：US886360
申请日：1986-07-17
CPC分类号： C10J3/57 , C10J2200/152 , C10J2300/093 , C10J2300/0959
摘要： A process including an apparatus for use therein for gasifying a carbonaceous material by means of blowing said carbonaceous material onto a high temperature molten iron bath through a top-blowing lance of the non-immersion type is disclosed. The apparatus comprises a furnace body containing the high temperature molten iron bath, a top-blowing lance of the non-immersion type which is a multi-nozzle lance comprising a central nozzle for blowing the carbonaceous material in a powdery form, a plurality of inner nozzles for blowing a gasifying agent, the inner nozzles for blowing the gasifying agent being positioned surrounding said central nozzle, and another plurality of outer nozzles for blowing an oxidizing gas for secondary combustion of part of the product gas to maintain the molten iron bath temperature at a level high enough to continue the gasification, said outer nozzles being positioned surrounding said plurality of inner nozzles, the axis of each of said outer nozzles being inclined towards the outer periphery at an angle of 20.degree.-60.degree. with respect to the axis of said central nozzle, means for discharging the slag during gasification, and means for recovering the product gas.
摘要翻译： 公开了一种包括其中用于通过非浸入式顶吹喷枪将所述碳质材料吹入高温铁水浴中来使碳质材料气化的装置。 该装置包括一个含有高温铁水槽的炉体，一种非浸入式的顶吹喷枪，它是一种多喷嘴喷枪，包括一个用于吹入粉状的碳质材料的中心喷嘴， 用于吹送气化剂的喷嘴，用于吹送围绕所述中心喷嘴的气化剂的内部喷嘴，以及另外多个外部喷嘴，用于吹送部分产物气体的二次燃烧用氧化气体，以将铁水浴温度保持在 高度足以继续气化的水平，所述外部喷嘴定位在所述多个内部喷嘴周围，每个所述外部喷嘴的轴线相对于所述外部喷嘴的轴线以20°-60°的角度向外周倾斜 所述中心喷嘴，用于在气化期间排出炉渣的装置，以及用于回收产品气体的装置。
-
-
-
搜索结果
4 条记录 (耗时 0.025 秒)
