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Process and device for treating copper-lead smelting mixed slag through bottom-blowing bath smelting technology

The invention relates to a molten pool smelting and technical treatment technology, which is applied to the process and the field of the device for treating mixed slag of copper and lead smelting by using the bottom blowing molten pool smelting technology, and can solve the problems of strong corrosiveness of slag, difficult recovery of flue gas, high labor intensity, etc. problem, to achieve the effect of low labor intensity, reduced production cost and high degree of automation

Inactive Publication Date: 2014-03-19
HENAN YUGUANG GOLD & LEAD
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  • Claims
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Problems solved by technology

The main problem is that the low concentration of SO 2 The flue gas is difficult to recover and pollutes the environment; the labor intensity is high, the working environment is poor; the thermal efficiency is low, the energy consumption is high; the furnace temperature changes greatly, the slag is highly corrosive, and the life of the furnace lining is short.

Method used

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  • Process and device for treating copper-lead smelting mixed slag through bottom-blowing bath smelting technology

Examples

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Embodiment 1

[0037] like figure 1 As shown, the copper-lead smelting mixed slag is used as the main material. If the molar ratio between the amount of S and the amount of Cu in the copper-lead smelting mixed slag is less than 2:1, sulfur-containing materials must be added to the auxiliary materials so that the amount of S and Cu The quantity molar ratio is not less than 2:1, and the sulfur-containing material is lead sulfide ore or copper sulfide ore. Add iron powder, quartz and pebbles or quicklime to the copper-lead smelting mixed slag. The amount of iron powder, quartz and pebbles or quicklime is determined according to the test data of iron, silicon and calcium in the copper-lead smelting mixed slag to ensure that the FeO in the output slag is / SiO 2 The weight ratio is between 0.8~1.2, CaO / SiO 2 The weight ratio is between 0.4~0.8, and then it is fed into the furnace from the feeding port 2 of the smelting zone 10, and injected into the furnace through the spray gun 11 at the bottom...

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Abstract

The invention belongs to the technical field of smelting of copper-lead mixed smelting slag in the non-ferrous metal metallurgy industry, and in particular relates to a process and a device for producing two main products, namely crude copper and crude lead, in the treatment period of copper-lead mixed slag through a bottom-blowing bath smelting technology by using a single piece of equipment. The lead-copper mixed slag is treated through a one-step smelting furnace to produce the crude lead, the crude copper, waste slag and the like. The crude copper and the crude lead are produced as final system products. Iron-silicon-calcium slag is produced in the smelting process, and furnace slag which meets requirements of the waste slag can be comprehensively utilized as raw materials of a building material factory. The process is single in equipment, short in process route, high in heat utilization rate, friendly to smelting environment, easy to operate and high in labor productivity; the automatic process control is easily realized. The process and the device conform to a concept of circular economy and meet the development trend of the energy conservation and emission reduction industry.

Description

technical field [0001] The invention belongs to the technical field of smelting copper-lead smelting mixed slag in the non-ferrous metal smelting industry, and in particular relates to a process and a device for processing copper-lead smelting mixed slag using bottom-blown molten pool smelting technology. Background technique [0002] In the process of copper and lead smelting, copper-lead smelting mixed slag containing a certain amount of copper and lead is often produced. The treatment of copper and lead mixed slag is often based on the copper smelting or lead smelting industry, and only one of the metals is recovered. , while the other metal is sold as smelting slag to professional manufacturers for further processing. The treatment process for the copper removal slag produced by the lead fire refining method is a representative treatment method for the treatment of copper and lead mixed slag. At present, the treatment of copper removal slag at home and abroad genera...

Claims

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Application Information

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IPC IPC(8): C22B7/04C22B15/00C22B13/00
CPCY02P10/20
Inventor 赵传合杨明狄聚才左淮书
Owner HENAN YUGUANG GOLD & LEAD
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