A kind of blister copper fire refining furnace and refining process

Abstract

The invention relates to a crude copper fire refining furnace and method. The crude copper fire refining furnace is composed of a shaft furnace and a converter; the lower portion of the shaft furnace is provided with a connection boss in a communicated mode in the radial direction; the connection boss is coaxially connected with the converter; the converter coaxially rotates on the connection boss of the shaft furnace; a liquid flowing port formed by the connection boss of the shaft furnace is communicated with a converter hearth. By the adoption of the structure of the shaft furnace and the tilting converter, the oxidation process and the reduction process are separated; the continuous production process is achieved; the production efficiency is improved; meanwhile, the larger capacity can be achieved through the device with the smaller size, so that the equipment purchase cost is reduced greatly.

Description

technical field [0001] The invention belongs to the field of metallurgy and relates to the refining of blister copper, in particular to a blister copper pyro-refining furnace and a refining process. Background technique [0002] There are two types of copper refining methods: pyro-refining and electrolytic copper-smelting, among which there are three types of pyro-refining furnaces: reverberatory furnace, rotary refining furnace, and tilting refining furnace. [0003] The reverberatory furnace is a traditional fire refining equipment. It is a surface-heated hearth furnace with simple structure and easy operation. It can handle cold or hot materials and can burn solid fuel, liquid fuel or gas fuel. The volume of the reverberatory furnace and the size of the furnace body can be large or small, and the fluctuation range is large; the processing capacity can be changed from 1t to 400t, and the adaptability is very strong. At present, factories that deal with more cold materials...

AI Technical Summary

Problems solved by technology

However, this reverberatory furnace also has the following disadvantages: (1) Oxidation, reduction, air duct insertion, slag removal, copper placement, etc. are all manual operations, with a large amount of labor and labor intensity, poor working conditions, and difficult to realize mechanization (2) The airtightness of the furnace body is poor, the heat loss is large, the flue gas leaks more, and the workshop environment is poor; (3) The amount of refractory materials is large, and the consumption of air ducts and auxiliary materials is large; (4) The copper liquid in the furnace is agitated and circulated Poor, low operating efficiency

[0007] Except for the "shaft furnace-reverberatory furnace combined copper refining" process, the above-mentioned processes are all periodic production, and all process routes have disadvantages such as high average consumption, low production efficiency, and low energy utilization rate.

Images