Redox copper smelting redox system

Abstract

The invention discloses a purple mixed copper smelting and oxidation-reduction system which comprises a reverberatory furnace body. A flame combustion device and a reduction device are arranged on the reverberatory furnace body, the flame combustion device comprises a fuel feeding pipeline, a combustion improver feeding pipeline and a combustor arranged on the reverberatory furnace body, and the reduction device comprises a reduction control system connected with the reverberatory furnace body. The flame combustion device further comprises a control valve set, a PLC, a computer operating screen and a material sensor, the reduction device further comprises a methyl alcohol feeding box, a feed pump, a smoke waste heat decomposer, a decomposed gas cooler, a decomposed gas molecule absorber, a compression system and a gas storage tank, and the methyl alcohol feeding box, the feed pump, the smoke waste heat decomposer, the decomposed gas cooler, the decomposed gas molecule absorber, the compression system and the gas storage tank are communicated in sequence. The purple mixed copper smelting and oxidation-reduction system is simple in structure, strong in practicality and especially suitable for a purple mixed copper reverberatory furnace.

Description

technical field [0001] The invention belongs to the field of metal smelting and processing, and in particular relates to a redox system for smelting red miscellaneous copper. Background technique [0002] The copper industry is a resource-based industry and an important part of the national economy. Since the reform and opening up, China's copper industry has achieved leapfrog development through continuous deepening of reforms and structural adjustments. The scale of the industry has continued to expand, the output of major products has continued to increase, the overall strength of the industry has gradually increased, and its competitiveness has been improved. At the same time, with the rapid development of the national economy and the continuous improvement of people's living standards, China's demand for copper metals is increasing day by day. Therefore, it is an inevitable choice for the sustainable development of the copper industry to insist on vigorously developing...

AI Technical Summary

Problems solved by technology

[0004] However, the combustion system of this fixed reverberatory furnace generally uses air as a combustion aid. Since the air contains 79% nitrogen, it is a useless waste gas, and it also takes a lot of heat away from the flue gas emission. Secondly, the heat conduction blackness of the air The coefficient is low, and the heat absorption efficiency of copper material is low during combustion, thereby reducing the combustion temperature. In order to increase the furnace temperature, the flame can only be controlled in a slightly reducing atmosphere, high fuel consumption and low benefit. Due to lack of oxygen, a small amount of organic matter on the copper material is carbonized , a lot of black smoke, long melting time, and because of the large amount of nitrogen in the air, harmful nitrogen oxides will be generated, which need to be removed by environmental protection equipment

[0005] The reduction is mainly by means of natural gas or planting trees, etc., and there are also reductions such as heavy oil, diesel oil, carbon powder or reducing agents. Because carbon will be cracked at high temperature, carbon cannot be completely oxidized, and a large amount of black smoke will be generated. Environmentally friendly treatment tougher

Images