The tilting copper melting furnace has high requirements for scrap copper raw materials, and some of the raw materials entering the factory have high impurities, complex composition and large fluctuations. Therefore, it is very important to explore the smelting technology of low-grade, high-impurity scrap copper with the tilting furnace. According to the design of the removal capacity of the tilting furnace, the adaptability of the furnace to the raw materials can be improved by research. By compiling a basic batching procedure, organizing technical personnel to tackle key problems, conducting slag making process research, timely analyzing impurities, adding different solvents, and taking effective methods to slag, improve the slag shape, and reduce the slag temperature to form a slag composed of multi-phase compounds with low melting point and good fluidity, so as to ensure the maximum removal of impurities; implement refined production, improve the operation process of scrap copper smelting, improve the solvent addition method, change the solvent addition time, and reasonably control the furnace temperature, negative pressure and other technical parameters to ensure that the tilting furnace can adapt to the smelting needs of high impurities.

Technology innovation and optimization to reduce heavy oil consumption

In the copper smelting process, heavy oil is indispensable and occupies the largest fuel cost, accounting for about 65% of the total cost of the tilting furnace plant. In order to reduce costs, it is necessary to save equipment oxidation working time and reduce heavy oil consumption. 1. Reduce the smelting temperature and slag making temperature to shorten the oxidation time. 2. Develop oxygen-enriched oxidation technology and nitrogen-doped reduction technology to speed up the smelting operation progress and save 10% of heavy oil consumption 3. Slag bag expansion and improvement. By improving the auxiliary hook capacity of the crane, saving slag pouring time and shortening the copper smelting operation time.

In addition, it will be continued in the next article that the heavy oil consumption of the tilting copper melting furnace can be reduced by shaking the furnace angle, etc.