Double-furnace blister copper continuous converting process

Abstract

The invention relates to the production process technology of double-furnace blister copper continuous converting. According to the technical scheme, a double-furnace blister copper continuous converting process is uniquely characterized in that two furnace kilns which are arranged front and back continuously complete the process of forming blister copper through copper matte by means of converting, and the two furnace kilns are named as a slag formation furnace and a copper formation furnace. The process flow includes the steps that the copper matte produced by a smelting furnace continuously flows into the slag formation furnace, and in the slag formation furnace, the copper matte chemically reacts with solvent added into the slag formation furnace and oxygen-enriched air blown into the slag formation furnace, so that converting slag, white copper matte and high-temperature gas are generated; the converting slag is continuously discharged out of a slag discharge opening in an overflow mode, and placed in a slow cooling slag ladle through a chute, the white copper matte sinks to the furnace bottom, is discharged through siphoning and continuously flows into the copper formation furnace through the chute, and the high-temperature gas enters a waste heat boiler; in the copper formation furnace, the white copper matte chemically reacts with the solvent and the oxygen-enriched air which is blown in, so that the blister copper, a trace of converting slag and the high-temperature smoke are generated; the blister copper is continuously or intermittently discharged through siphoning by means of the chute, the converting slag is regularly discharged out of the slag discharge opening in the overflow mode, and the high-temperature gas enters the waste heat boiler.

Description

technical field

[0001] The invention relates to a blister copper smelting process, in particular to a blister copper continuous blowing process, which is called the Jinfeng blister copper continuous blowing process. Background technique

[0002] Copper smelting enterprises at home and abroad are gradually developing towards the continuous blowing process technology that meets clean production standards, actively seeking or developing blowing processes with large production capacity, low investment and operating costs, continuous operation, and environmental protection. my country attaches great importance to the selection and development of smelting process and blowing process in large and medium-sized copper smelting new or renovation projects. While introducing and digesting advanced technologies, it focuses on developing smelting technology and continuous blowing technology with independent intellectual property rights. It has become an inevitable trend to gradually narrow...

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