Continuous copper smelting system and continuous copper smelting method

Abstract

The invention discloses a continuous copper smelting system and a continuous copper smelting method. The continuous copper smelting system comprises a fixed side blowing smelting furnace, a rotary bottom blowing converting furnace and two anode refining furnaces; the side blowing smelting furnace is connected with the bottom blowing converting furnace through a copper matte launder; the bottom blowing converting furnace is connected with the anode refining furnaces through a blister copper launder; the side blowing smelting furnace, the bottom blowing converting furnace and the anode refiningfurnaces are arranged in a stepped mode; and a feeding end of the copper matte launder is connected with the side blowing smelting furnace through a siphon discharge pipe. The side blowing smelting furnace is used for smelting to produce high-grade copper matte, the high-grade copper matte is smelted into blister copper after being subject to bottom blowing smelting by using the bottom blowing converting furnace, and the anode refining furnaces are used for refining the blister copper to produce qualified anode plates. The full-thermal continuous production can be achieved, the SO2 concentration contained in the generated flue gas is high, the pollution to the environment is small, the comprehensive utilization level of resources is high, and the comprehensive energy consumption is low.

Description

technical field [0001] The invention relates to a nonferrous metal smelting technology, in particular to a continuous copper smelting system and method. Background technique [0002] At present, copper smelting enterprises at home and abroad are developing towards the continuous blowing process technology of clean production. For copper blowing, PS converter blowing is the traditional process of copper matte blowing. This blowing process is related to smelting and refining. The connection of the process needs to be transported by metallurgical ladle, and there is a large amount of SO in the production process. 2 The flue gas escapes, the environment is harsh, and there is SO 2 A series of problems such as low concentration, large amount of flue gas, large fluctuating flue gas, and discontinuous flue gas. [0003] In recent years, with the improvement of energy consumption and environmental protection requirements in our country, many smelters have tried to replace converte...

AI Technical Summary

Problems solved by technology

Among them, the main problem of flash continuous blowing is the high requirements for raw materials and large investment; the problem of double bottom continuous blowing is reflected in the high grade copper smelting slag produced by bottom blowing smelting, the large amount of refractory material used, and the long life of the furnace body. Short; the main problem of top-blown blowing is that the oxygen lance is on the upper part of the furnace body, the height requirement of the factory building is high, the corresponding cost is also high, and the operation risk is high

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