Is there any technical information about copper smelting, such as converter and side blowing furnace? Thank you.
The copper smelting furnace with an annual output of 654.38+10,000 tons independently developed by Chifeng Copper Company in Inner Mongolia and Shanxi Yuanqu Huasheng Metallurgical Company has been in operation for 654.38+0 years, saving 30,000 tons of coal, reducing 654.38+10,000 tons of carbon dioxide emission, improving the copper recovery rate in waste residue by 0.5% and increasing the efficiency by 90.56 million yuan. On June 25th, an expert group composed of Zhang Guocheng, an academician of China Academy of Engineering, appraised the furnace and its smelting process, and concluded that it is a brand-new furnace type, an efficient new process for strengthening molten pool smelting, and it can be called goldwind furnace smelting method. Jinfeng furnace has unique structure, convenient operation and low cost. It absorbs the advantages of advanced furnace types at home and abroad. Jinfeng furnace and its supporting facilities cost 200 million yuan, saving 200-300 million yuan compared with imported international advanced furnace types. With the efforts of scientific and technical personnel, we independently developed production control software, which improved the degree of automation. The innovative double-sided blowing technology is used to inject high concentration oxygen-rich gas into the slag layer melt, which has high melting temperature and high bed energy efficiency. The molten pool of the furnace is deep, the separation of slag and matte is completed in the molten pool under the tuyere, the matte is discharged from the siphon, and the smelting slag is discharged from the overflow; The dilution electric furnace is a rotary electric furnace, which is beneficial to the further separation of copper and slag in smelting slag and reduces the copper content in slag; The tuyere of smelting furnace is made of stainless steel and copper, which can withstand the high temperature of 2000 degrees Celsius without burning or changing. The furnace body is composed of multiple water jackets, and a single water jacket can be replaced during maintenance; The flue is an unbonded flue. After novelty search, there is no research report on the manufacturing technology of the same smelting equipment. In the smelting process of Jinfeng furnace, the flue gas of smelting furnace, dilution furnace and blowing furnace is cooled and dedusted by waste heat boiler, and then the flue gas is removed by electrostatic precipitator, and then the flue gas enters the double-rotating double-suction acid-making system to recover sulfur dioxide to prepare sulfuric acid, and all sulfuric acid sewage is reused. The comprehensive energy consumption per ton of copper (anode copper) by Jinfeng furnace smelting method decreased from 850 kg to 266.3 kg of standard coal, far better than the national standard of 550 kg, and the direct recovery rate of copper smelting reached 97.5%. Experts believe that the overall technology of Jinfeng furnace smelting method is at the international advanced level, and some indicators have reached the international leading level, which has a good application prospect. See more answers >>