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Method for copper smelting by pyrometallurgical process

A technology for pyrometallurgy and blowing furnaces, which is applied in the field of improvement of furnace configuration methods in the pyrometallurgy copper process, and can solve problems such as difficulties in chemical acid production, poor flue gas stability, and environmental pollution.

Inactive Publication Date: 2014-04-23
JINCHUAN GROUP LIMITED
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Problems solved by technology

[0003] The purpose of the present invention is to address the shortcomings of the above-mentioned situation, and to provide a method for pyrometallurgical copper smelting that can effectively solve the problems of poor flue gas stability during converter production, resulting in difficulties in chemical acid production and environmental pollution.

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  • Method for copper smelting by pyrometallurgical process

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Embodiment Construction

[0008] A method for pyrometallurgical copper smelting. The kiln is configured according to smelting → blowing → refining. The blowing process is equipped with 3 converters, and at least two converters are in the blowing operation state during the blowing process. Main components

[0009] Single-furnace zoning operation system—according to the periodic operation characteristics of the converter, the single-furnace period is divided into six blowing stages, four fixed periods of S1, S2, B1, and B2, and two flexible periods of S3 and B3. The specific blowing time of each interval is determined according to the grade of matte in the smelting furnace, the yield, the specifications of the converting converter, and the oxygen concentration. During the blowing operation, the single-furnace operation of each converter is divided into six stages, and the operation progress of the three converters is in different divisions. The converter for blowing operation is PS blowing furnace.

[0...

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Abstract

A method for copper smelting by a pyrometallurgical process relates to improvement of a furnace kiln configuration method in a copper pyrometallurgical process. In the pyrometallurgical process, furnace kiln configuration is performed according to the steps of smelting, blowing and refining, and is characterized in that three converters are disposed in the blowing process, and at least two converters are in the blowing work state during the blowing process. The method of the invention maintains the continuity and stability of flue gas acid production by orderly connection of multiple converters, solves the problems of site environmental pollution caused by converter flue gas fluctuation, and poor chemical acid production capacity, and has unique superiority in solution of environment protection problems of converter production.

Description

technical field [0001] The invention relates to a method for pyrometallurgical copper smelting, which relates to an improvement of a kiln configuration method in the process of pyrometallurgical copper smelting. technical background [0002] In the process of pyrometallurgy of copper, nickel and steel, the kiln configuration is generally carried out according to smelting → blowing → refining, and the converter has been used as the main choice of blowing furnace for more than 100 years. Converter blowing refers to the use of O blown into the air 2 , and the furnace matte (Cu 2 S, FeS, and other metal sulfides) exothermic reaction, iron and desulfurization to obtain crude copper metallurgy process. Converter blowing does not consume energy, so the cost is low, and it is widely used in the metallurgical industry at home and abroad. Since the converter is blowing intermittently, the flue gas fluctuates greatly during the copper-making and slag-making periods during blowing, a...

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Application Information

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IPC IPC(8): C22B15/06
Inventor 齐红斌张正位李自玺
Owner JINCHUAN GROUP LIMITED
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