Device for restraining copper metallurgy smelting furnace from generating coking and use method

A smelting furnace and copper metallurgy technology, which is applied in the field of devices for suppressing coking in copper metallurgical smelting furnaces, can solve problems such as coking and affecting normal production, and achieve the effects of increasing oxygen-enriched concentration, reducing the production of metal compounds and avoiding coking.

Active Publication Date: 2016-11-16
CHIFENG FUBANG COPPER
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Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that coking occurs in the smelting furnace and the waste heat boiler during the production process of copper smelting, thereby affecting the normal production. A related device and method are provided. The specific content of the invention is as follows:

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  • Device for restraining copper metallurgy smelting furnace from generating coking and use method

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with embodiment.

[0022] The invention can be applied to the copper smelting bath smelting furnace with an ore feeding rate of 40 tons / h. The double-layer casing heat exchange device used is mainly composed of an inner tube 1 and an outer tube 2. The inner tube 1 is made of acid-resistant steel. The axial centerline of the inner tube 1 coincides with the axial centerline of the outer tube 2. The diameter d of the tube 1 is 1600 mm and the diameter D of the outer tube 2 is 3500 mm. The flue gas inlet 5 of the inner pipe 1 is connected with the flue gas outlet pipe of the smelting furnace waste heat boiler, and the flue gas outlet 6 of the inner pipe 1 is connected with the dust collector inlet pipe. The two ends of the outer tube 2 are completely closed, the side of the outer tube 2 close to the smoke outlet 6 of the inner tube 1 has a secondary air inlet 3, and the side of the outer tube 2 close to t...

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Abstract

A device for restraining a copper metallurgy smelting furnace from generating coking and a use method, and belongs to the technical field of copper smelting. The device is characterized in that waste heat boiler outlet smoke is used for heating prepared-in high-concentration oxygen-rich secondary air through a heat exchange device, the secondary air mount is reduced, anthracite is prepared in copper concentrates, the smelting oxygen-rich air concentration is improved, and therefore coking in the smelting furnace and other hot boilers is restrained or controlled. The method is applicable to use of various copper metallurgy smelting furnaces, and the beneficial effects of being small in investment, low in running cost, easy to operate and the like are achieved.

Description

technical field [0001] The invention belongs to the technical field of copper smelting, and in particular relates to a device and a use method for suppressing coking in a copper smelting furnace. Background technique [0002] Copper smelting technology has developed rapidly in the last century, and the proportion of hydrometallurgy in copper metal production capacity is gradually expanding. However, due to the strong material adaptability and large production capacity of pyrometallurgy technology, it can also recover a large amount of rare and precious metals. And other characteristics, so pyrometallurgical copper smelting technology is still in a dominant position. Pyrochemical copper smelting technology is mainly divided into four steps: matte smelting-copper matte blowing-pyrochemical refining-electrolytic refining. In the past two years, some enterprises have also adopted the process of simplifying the two steps of copper matte blowing and pyro-refining into one step, b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B15/00F27D17/00
CPCC22B15/0028F27D17/004F27D2017/006
Inventor 周玉军罗银华赵建军李敬波王志超李国军展宏图王治永赵龙虎李庚奇单志敏
Owner CHIFENG FUBANG COPPER
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