Fubang oxygen-enriched side-blown bath copper smelting furnace and operation method thereof

A technology for copper smelting furnaces and smelting furnaces, applied in furnaces, electric furnaces, rotary drum furnaces, etc., which can solve the problems of polluting the surrounding air environment of enterprises, adverse effects on human and biological survival, and large equipment footprint, so as to avoid unsatisfactory operation Effects of stability, saving material consumption, and copper content reduction

CN102851518BActive Publication Date: 2014-04-02CHIFENG FUBANG COPPER +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2014-04-02

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Abstract

The invention discloses a Fubang oxygen-enriched side-blown bath copper smelting furnace and an operation method thereof. The Fubang oxygen-enriched side-blown bath copper smelting furnace is characterized by comprising a melting furnace and a insulation electric furnace; a matte trough and a smelting slag trough respectively connect the melting furnace and the insulation electric furnace into a whole; the melting furnace is provided with a tertiary air orifice and a melt adding inlet; a slag chamber and a taphole are arranged in front of a melting chamber; a matte siphon is arranged at the low furnace bottom right opposite to slag chamber; and the insulation electric furnace heats individually. Matte and furnace slag are sent out to the insulation electric furnace continuously; the Fe3O4 content of the furnace slag is controlled at 3%-4%; a ratio of iron to silicon in the furnace slag is 1.1- 1.2; and the insulation electric furnace is added without any dilution agent. The furnace slag discharged by the device according to the method provided by the invention has copper content lower than 0.45%, so as to significantly reduce the labor intensity, save material consumption, and reduce production cost and construction investment in new plant.
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Description

technical field

[0001] The invention relates to process equipment and methods in the technical field of nonferrous metallurgy, in particular to a smelting device and method for extracting metallic copper from copper concentrates. Background technique

[0002] In today's metal copper pyrometallurgical smelting process, molten pool smelting has been widely used due to its advantages such as strong raw material adaptability, high production efficiency, less smoke and dust emissions, and low residual copper in slag. Especially with the gradual reduction of the grade of copper ore entering the furnace, the aggravation of the status quo of more associated ore, high impurity content, and continuous depletion of copper ore raw materials, the advantages of molten pool smelting will be further revealed in the future.

[0003] In the 1970s, molten pool smelting began to be widely used in copper smelting industrial production. In 1976, Vanyukov smelting furnace was put into production i...

Examples

Embodiment Construction

[0034] refer to figure 1 As shown, the oxygen-enriched side-blowing molten pool copper smelting device designed in this invention consists of a smelting furnace (1), a heat preservation electric furnace (2), a matte chute (3), a smelting slag chute (4), and a feeding belt (5) , transformer (6), copper busbar (7) and electrode (8), wherein the matte chute (3) and the slag chute (4) respectively connect the smelting furnace (1) and the heat preservation electric furnace (2) into a whole, The feeding belt (5) transports the charge to the feeding port (106) of the melting furnace, the input end of the transformer (6) is connected to the external power grid, and its output end is connected to the electrode (8) through the copper busbar (7), and the electrode (8) is inserted into the In the furnace of the heat preservation electric furnace (2).

[0035] refer to figure 2 , image 3 As shown, the smelting furnace is mainly composed of a smelting furnace foundation (101), a furnac...