Processing method of flash smelting matte

Abstract

The invention belongs to the field of copper smelting, and in particular relates to a method for treating matte by flash smelting. The copper content and silica content of the quenched matte copper, the copper content of 66-72% and the silica content of ≤ 0.4% of the water-quenched matte is qualified matte, which is stacked in the qualified matte yard, and the water is filtered off. It is directly transported to the flash blowing furnace for processing; other water-quenched mattes are unqualified mattes. During the transportation process, most of them are directly mixed with qualified mattes during the stacking process, and flash blowing treatment is performed, and a small part is mixed with Unqualified matte with large difference in quality of qualified matte can be used as the bottom layer of qualified matte pile or directly transferred to other warehouses for processing. The step of spreading evenly, and reducing the impact of material quality fluctuation or slow transfer on the flash blowing furnace process.

Description

technical field [0001] The invention belongs to the field of copper smelting, and in particular relates to a processing method for flash smelting matte copper. Background technique [0002] In the flash smelting + flash blowing process, the matte produced by the flash smelting furnace continues to be processed as the raw material of the flash smelting furnace. Among them, after the matte melt produced by the flash smelting furnace is quenched and granulated by water, it is transported by the belt conveyor to the stacker and unloaded into the matte yard. The belt conveyor leads to the flash blowing process. [0003] The flash blowing furnace has strict requirements on the quality of matte. When the quality of the matte is not good, the furnace condition of the flash blowing furnace will fluctuate, especially if the silica content of the matte is too high, the flash blowing furnace will be It is difficult to discharge copper slag, and in severe cases, it will cause the shutd...

AI Technical Summary

Problems solved by technology

[0004] However, during the start-up and shutdown of the flash smelting furnace or when the furnace conditions fluctuate, it is inevitable that some unqualified matte will be produced. or silicon dioxide content is quite different), need to be separately stacked in batches according to the matte quality, the matte stacking site and temporary storage yard are full of qualified or unqualified water-quenched matte, there is not enough space to continue to store water Quenching matte copper, and affecting the supply of matte in the flash converting process, resulting in abnormal production of flash smelting and flash converting operations