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    • 4. 发明授权
    • Process for gasifying carbonaceous material
    • 气化碳质材料的方法
    • US4738688A
    • 1988-04-19
    • US886360
    • 1986-07-17
    • Hidemasa NakajimaShozo OkamuraMasanobu SueyasuSakae FurujoShoji Anezaki
    • Hidemasa NakajimaShozo OkamuraMasanobu SueyasuSakae FurujoShoji Anezaki
    • C10J3/46C10J3/57C10J3/48
    • C10J3/57C10J2200/152C10J2300/093C10J2300/0959
    • 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.
    • 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。
    • 5. 发明授权
    • Lance structure for oxygen-blowing process in top-blown converters
    • 顶吹转炉中吹氧过程的喷枪结构
    • US4541617A
    • 1985-09-17
    • US487566
    • 1983-04-22
    • Kohji OkaneHidemasa NakajimaShozo OkamuraMasanobu SueyasuTakashi Manago
    • Kohji OkaneHidemasa NakajimaShozo OkamuraMasanobu SueyasuTakashi Manago
    • C21C5/28C21C1/02C21C5/32C21C5/46F27D3/18B23K37/04
    • F27D3/18C21C5/4606
    • Herein disclosed is a lance structure for use with a top-blown converter. The lance structure is constructed to include a cylindrical sheath having a bottom wall and a flux supply tube disposed at the center of the sheath and defining a passage for carrying slag-forming flux in a powdered form. Further inclusive are a plurality of oxygen supply tubes which are arranged in the sheath and around the flux supply tube and which define oxygen supply passages. From the oxygen supply tubes, there lead a corresponding number of Laval nozzles which have their exits opened in the sheath bottom so that the oxygen gas supplied through the oxygen supply passages may be blown in the form of supersonic jets to penetrate into the molten iron contained in the converter. The flux supply tube is formed with ports which are opened into the Laval nozzles just upstream of the exits thereof to feed the flux together with a carrier gas to the supersonic oxygen jets so that the carrier gas flows may merge into the oxygen jets. Thus, the powdered flux can be uniformly dispersed in the oxygen jets without wearing and damaging the inner walls of the Laval nozzles and can be carried by the jets deeply into the molten iron.
    • 这里公开了一种用于顶吹转炉的喷枪结构。 喷枪结构被构造为包括具有底壁的圆柱形护套和设置在护套中心处的通量供给管,并且限定用于承载粉末形式的成渣助熔剂的通道。 进一步包括多个供氧管,其布置在护套中并且围绕焊剂供应管并且限定供氧通道。 从供氧管中,引出相应数量的拉瓦尔喷嘴,其出口在鞘底部开口,使得通过供氧通道供应的氧气可以以超音速喷气的形式吹入,以渗透到所含的铁水中 在转换器中。 助焊剂供应管形成有在其出口的上游开口进入拉瓦尔喷嘴的端口,以将载气与载气一起供给超声波氧气射流,使得载气流可以合并到氧气射流中。 因此,粉末焊剂可以均匀地分散在氧气射流中,而不会磨损和损坏拉瓦尔喷嘴的内壁,并且可以通过射流深深地携带在铁水中。
    • 6. 发明授权
    • Process for production of low phosphorus alloy
    • 低磷合金生产工艺
    • US4522650A
    • 1985-06-11
    • US537025
    • 1983-09-29
    • Hidemasa NakajimaShozo OkamuraMasanobu SueyasuSakae FurujhoKohji OkaneShoji Anezaki
    • Hidemasa NakajimaShozo OkamuraMasanobu SueyasuSakae FurujhoKohji OkaneShoji Anezaki
    • C21B13/00C21C5/28C21C5/35C21C7/00
    • C21B13/0013C21C5/28C21C5/35Y02P10/136
    • 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.
    • 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。