The core advantages of the oxygen-enriched bottom-blown copper concentrate smelting furnace are mainly reflected in the following aspects:

1. High-efficiency reaction and intensified smelting

Oxygen-enriched blowing: By injecting high-concentration oxygen from the bottom, the molten pool agitation is greatly enhanced, accelerating the sulfide oxidation reaction rate and significantly improving smelting intensity and production efficiency.

Autogenous smelting: The reaction heat is concentrated, and the heat utilization rate is high, which can reduce auxiliary fuel consumption and achieve efficient autogenous or near-autogenous smelting.

2. Strong raw material adaptability

It can process low-grade, complex-composition copper concentrates, with relatively loose requirements for ore particle size and moisture content, adapting to various mineral compositions.

3. Environmental protection and low emissions

Reduced flue gas volume: Oxygen-enriched combustion reduces nitrogen input, and the flue gas volume is reduced by about 30%-50% compared with traditional smelting, reducing the subsequent flue gas treatment load.

High-concentration SO₂ recovery: The high concentration of SO₂ in the flue gas facilitates efficient acid production or resource utilization, reducing sulfur emission pollution.

Dust and harmful element control: The closed smelting environment combined with a supporting dust collection system can effectively capture volatile harmful elements such as arsenic and lead.

4. High metal recovery rate and economic benefits

High direct copper recovery rate, high recovery rate of precious metals such as gold and silver; low copper content in slag, reducing metal loss.

Lower energy consumption, coupled with automated control, resulting in significant overall production cost advantages.

5. Process continuity and stable operation

The bottom-blown molten pool smelting process is continuous, the furnace condition is stable, easy to automate control, low labor intensity, and improved working environment.

6. Flexible connection with subsequent processes

The produced high-grade copper matte can be directly sent to the converter, shortening the process flow; valuable metals can be further recovered from the slag.

Compared with flash smelting, top-blown smelting, and other technologies, the oxygen-enriched bottom-blown furnace performs outstandingly in terms of raw material adaptability, investment cost, and ease of operation, especially suitable for processing complex mineral resources. The oxygen-enriched bottom-blown furnace achieves efficient, energy-saving, environmentally friendly, and low-cost copper smelting through intensified smelting with bottom oxygen-enriched blowing.