Flash smelting technology for copper or nickel sulfide ore concentrate

A sulfide concentrate and flash smelting technology, applied in crucible furnaces, electric furnaces, rotary drum furnaces, etc., can solve the problems of limited energy consumption, pollution treatment capacity, etc., and achieve high efficiency, low investment, economical construction and operation Effect

Inactive Publication Date: 2002-10-30
CHINA NERIN ENG
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Problems solved by technology

[0002] At present, the smelting of copper and nickel sulfide concentrates mainly has the following three forms: 1. Flash furnace smelting—→PS converter blowing. After copper and nickel sulfide concentrates are smelted in flash furnaces, they enter PS converter blowing. The process requires multiple PS converters for blowing, and PS converter blowing has low-altitude SO 2 Disadvantages such as serious pollution and limited processing capacity; 2. Flash furnace smelting—→flash furnace blowing. After the copper and nickel sulfide concentrates are smelted

Method used

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  • Flash smelting technology for copper or nickel sulfide ore concentrate
  • Flash smelting technology for copper or nickel sulfide ore concentrate

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Embodiment Construction

[0007] In the copper and nickel sulfide concentrate flash smelting metallurgical process of the present invention, a launder 3 is arranged between the flash smelting furnace 1 and the top-blown bath blowing furnace 2, and one end of the launder 3 is connected with the outlet of the flash smelting furnace 1 , and the other end is connected to the top-blown melting pool blowing furnace 2. After the copper and nickel sulfide concentrates are deeply dried, they are first suspended in a conventional stationary flash smelting furnace and oxidized by oxygen-enriched air to obtain liquid copper matte Or nickel matte, and then the liquid copper matte or nickel matte directly enters the conventional fixed top-blown molten pool blowing furnace through the launder and is further oxidized by oxygen-enriched air or pure oxygen to obtain blister copper or nickel matte.

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Abstract

A flash smelting technology for copper sulfide-nickel sulfide ore concentrate features that a flowing channel is arranged between flash smelting furnace and top-blowing smelting furnace. Said ore concentrate in suspended state is oxidized by oxygen-enriched air in flash smelting furnace, and then directly flows through said flowing channel into the top-blowing smelting furnace, where it is further oxidized by oxygen-enriched air or pure oxygen to obtain coarse copper or nickel. Its advantages are high efficiency, low energy consumption, and low cost.

Description

technical field [0001] The invention relates to the field of nonferrous metallurgy, in particular to a copper and nickel sulfide concentrate flash smelting metallurgical process. Background technique [0002] At present, the smelting of copper and nickel sulfide concentrates mainly has the following three forms: 1. Flash furnace smelting—→PS converter blowing. After copper and nickel sulfide concentrates are smelted in flash furnaces, they enter PS converter blowing. The process requires multiple PS converters for blowing, and PS converter blowing has low-altitude SO 2 Disadvantages such as serious pollution and limited processing capacity; 2. Flash furnace smelting—→flash furnace blowing. After the copper and nickel sulfide concentrates are smelted in the flash furnace, they enter the flash furnace for blowing, and flash furnace blowing exists Shortcomings of low metallurgical energy utilization rate and long production process; 3. Smelting in top-blown molten pool smeltin...

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Application Information

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IPC IPC(8): C22B15/00C22B23/02
Inventor 张文海王临江姚素平
Owner CHINA NERIN ENG
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