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
CN1376804AInactive Publication Date: 2002-10-30CHINA NERIN ENG
0 Cites 17 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHINA NERIN ENG
Publication Date
2002-10-30
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

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.
Need to check novelty before this filing date? Find Prior Art

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...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More