公开(公告)号：US5174746A

公开(公告)日：1992-12-29

申请号：US864126

申请日：1992-04-06

Applicant: Nobumasa Kemori ,  Akihiko Akada ,  Yasuhiro Kondou

Inventor： Nobumasa Kemori ,  Akihiko Akada ,  Yasuhiro Kondou

IPC: F27B3/20 ,  F27D99/00

CPC classification number: F27B3/205 ,  F27D2099/004

Abstract: A method for operation of a flash smelting furnace comprising a reaction shaft, a settler connected at one end thereof to the lower portion of the reaction shaft and having a slag discharge port and a matte discharge port disposed on the side thereof, an uptake connected to the other end of the settler and at least one concentrate burner disposed to at least one of the top of the reaction shaft and the ceiling of the settler, in which the concentrate burner comprises at least a concentrate shoot, an oxygen blowing tube inserted in the concentrate shoot and an auxiliary fuel burner inserted into the oxygen blowing tube. In this method, the lower end of the oxygen blowing tube is protruded downward to lower than the lower end of the concentrate shoot and an amount of oxygen at least greater than that required for the auxiliary fuel is blown as an industrial oxygen by way of the oxygen blowing tube into the furnace. Oxygen efficiency can be improved remarkably while the rate of dust occurrence can be reduced.

Abstract translation: 一种闪蒸熔炼炉的操作方法，包括反应轴，沉降器的一端连接到反应轴的下部，并具有设置在其侧面上的排渣口和无光喷射口，其吸收与 沉降器的另一端和设置在反应轴的顶部和沉降器的顶部中的至少一个上的至少一个浓缩燃烧器，其中浓缩燃烧器至少包括浓缩物柱，将氧气吹入管插入 浓缩物料和辅助燃料燃烧器插入吹氧管中。 在这种方法中，氧气吹送管的下端向下突出以比浓缩物料的下端低，并且至少大于辅助燃料所需的氧气量作为工业氧气通过 吹氧管吹入炉内。 可以显着提高氧气效率，同时可以降低粉尘发生率。

公开(公告)号：US5178667A

公开(公告)日：1993-01-12

申请号：US767894

申请日：1991-09-30

Applicant: Nobumasa Kemori ,  Akihiko Akada ,  Hitoshi Takano ,  Takeshi Kusakabe ,  Masaru Takebayashi

Inventor： Nobumasa Kemori ,  Akihiko Akada ,  Hitoshi Takano ,  Takeshi Kusakabe ,  Masaru Takebayashi

IPC: C22B19/02 ,  C22B19/20 ,  C22B19/32

CPC classification number: C22B19/32 ,  C22B19/02 ,  C22B19/20

Abstract: A pyrometallurgical refining process for obtaining one or both of zinc and lead from a sulfide concentrate, in which an iron-silicate slag or iron-silicate slag containing lime is formed and the sulfide concentrate, incombustible materials, and flux, together with at least one of industrial oxygen, oxygen-enriched air, or air, are blown into the slag to cause a reaction; as a result of the reaction, the major part of the zinc and part of the lead in the sulfide concentrate and the incombustible materials are dissolved in the slag, to arrange the slag and a matte and/or metal from one part of the lead in the raw material. A reducing agent such as heavy oil, pulverized coal, powdered coke, or the like is blown through the resulting slag, and the zinc and the lead in the slag are volatilized then condensed to obtain molten zinc and molten lead.

Abstract translation: 一种用于从硫化物浓缩物中获得锌和铅中的一种或两种的火法冶金精炼方法，其中形成含有石灰的铁硅酸盐渣或含铁硅酸盐渣，并且硫化物浓缩物，不可燃材料和助熔剂以及至少一种 的工业氧气，富氧空气或空气吹入炉渣中引起反应; 作为反应的结果，硫化物浓缩物中的锌和部分铅的主要部分和不燃物质溶解在炉渣中，以将炉渣和来自铅的一部分的无光泽和/或金属排列在 原料。 通过所得到的炉渣吹入诸如重油，粉煤，粉末状焦炭等还原剂，并将炉渣中的锌和铅挥发，然后冷凝，得到熔融锌和熔融铅。