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Processing method for matte blowing and water quenching slag

A treatment method, water quenching technology, which is applied in the field of water quenching slag treatment, can solve the problems of reduced comprehensive smelting recovery rate, increased energy consumption, and low production efficiency

Inactive Publication Date: 2016-01-06
YUNNAN TIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This treatment method causes a large amount of copper and iron to form a cycle in the process, which not only increases energy consumption, lowers production efficiency, but also reduces the recovery rate of comprehensive smelting

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] A treatment method for water-quenched slag from matte blowing. A jigging concentrator is used to process 220 tons of water-quenched slag produced by blowing matte in a top-blown furnace containing 16.85% copper and 38.61% iron. After being separated from iron, 41.73 tons of copper material containing 65.09% copper and 178.27 tons of gravity separation tailings containing 5.56% copper were obtained. After separation by the above method, the amount of copper material containing 65.09% of copper produced is 18.97% of the total amount of 220 tons of blowing slag input, and the amount of gravity separation tailings containing 5.56% of copper is 81.03% of the total amount of 220 tons of blowing slag input. %. 73.27% of the copper in the blowing slag enters the copper material, and 26.73% enters the gravity separation tailings.

Embodiment 2

[0010] A method for processing water-quenched slag from matte blowing. A jigging concentrator is used to process 280 tons of water-quenched slag produced by blowing matte in a top-blown furnace containing 18.92% copper and 32% iron. After being separated from iron, 78.64 tons of copper material containing 58.76% copper and 201.36 tons of gravity separation tailings containing 3.36% copper were obtained. After separation by the above method, the amount of copper material containing 58.76% of copper produced is 28.09% of the total amount of 280 tons of blowing slag input, and the amount of gravity tailings containing 3.36% of copper is 71.91% of the total amount of 280 tons of blowing slag input. %. The amount of copper in blowing slag entering copper material is 87.23%; the amount entering gravity slag is 12.77%.

Embodiment 3

[0012] A treatment method for water-quenched slag of matte blowing, using a jigging concentrator to process 350 tons of water-quenched slag produced by blowing matte in a top-blown furnace containing 22% copper and 35% iron. After being separated from iron, 92.17 tons of copper material containing 61.93% copper and 257.83 tons of gravity separation tailings containing 7.24% copper were obtained. After separation by the above method, the amount of copper material containing 61.93% of copper produced is 26.33% of the total amount of 350 tons of blowing slag input, and the amount of gravity tailings containing 7.24% of copper is 73.67% of the total amount of 350 tons of blowing slag input. %. 75.36% of the copper in the blowing slag enters the copper material, and 24.64% enters the gravity separation tailings.

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Abstract

The invention relates to a processing method for matte blowing and water quenching slag. The processing method comprises the steps that water quenching slag which is generated by blowing matte in a top blowing furnace and contains 14%-22% of copper and 32%-48% of iron is directly gravity concentrated, the copper and the iron are separated, and copper materials containing larger than or equal to 50% of copper and reselected tailing containing smaller than 8% of copper are obtained. According to the processing method, most copper can be concentrated into copper materials, convenience is brought to directly recycling copper in the next step, a small part of copper remains in the reselected tailing, and the small part of copper can be processed through a floating or smelting method. By means of the processing method, the water quenching slag can be directly gravity concentrated instead of being finely ground. Thus, the producing efficiency is high, and the cost is low.

Description

technical field [0001] The invention relates to the technical field of copper smelting slag treatment methods, in particular to a treatment method for water-quenched slag produced by blowing matte in a top-blowing furnace. Background technique [0002] In copper smelting production, the processes of blowing matte into blister copper include PS converter blowing, flash furnace blowing, top blowing furnace blowing, etc. Due to the differences in the process, the properties of the blowing slag produced by different blowing methods are also different. difference. PS converter and flash furnace, because the furnace can control a certain reducing atmosphere, and there is a relatively static settling molten pool, the content of magnetic iron in the slag produced by blowing is low, and the copper content in the slag is also low, generally containing copper 3%~ 10%; and top-blowing furnace blowing, due to the strong oxidizing atmosphere in the furnace and the agitation of the spray ...

Claims

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Application Information

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IPC IPC(8): C22B7/04C22B15/00
CPCY02P10/20
Inventor 宋兴诚田澍唐都作蔡兵袁海滨罗永春陈钢
Owner YUNNAN TIN