A process suitable for simultaneous separation of copper smelting electric furnace slag and converter slag

A process method and electric furnace slag technology, which can be used in flotation, solid separation and other directions, can solve the problems of high cost and no economic benefits, and achieve the effect of reducing production costs.

Active Publication Date: 2017-08-25
铜陵有色金属集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual production, if two sets of independent systems are established to process electric furnace slag and converter slag, the cost is too high and there is almost no economic benefit

Method used

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  • A process suitable for simultaneous separation of copper smelting electric furnace slag and converter slag
  • A process suitable for simultaneous separation of copper smelting electric furnace slag and converter slag
  • A process suitable for simultaneous separation of copper smelting electric furnace slag and converter slag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Embodiment 1: as figure 1 , figure 2 As shown, if the raw ore is electric furnace slag, it will enter the two-stage continuous grinding-flotation process; if the raw ore is converter slag, it will enter the two-stage grinding-two-stage flotation process; the two-stage continuous grinding-flotation The process includes sending the raw ore into the ore grinding machine M1 for primary grinding, entering the ore grinding machine M2 through the valve V1 for secondary grinding, and then entering the primary roughing flotation machine C1, valve V5, and secondary roughing through the valve V3 in sequence. Flotation machine C2, scavenging flotation machines S1, S2, S3 and selection flotation machines J1, J2, J3, after two times of roughing, three times of cleaning and three times of scavenging, the tailings are selected and the scavenging concentrate Sequentially return to the previous operation to obtain the final concentrate and tailings products; such as figure 1 , image...

Embodiment 2

[0021] Preferred embodiment 2: if the raw ore is electric furnace slag, then enter into two-stage continuous grinding-flotation process; if the raw ore is converter slag, then enter into two-stage grinding-two-stage flotation process; the two-stage continuous grinding- The flotation process includes sending the raw ore into the ore grinding machine M1 for primary grinding, entering the ore grinding machine M2 through the valve V1 for secondary grinding, and then entering the primary roughing flotation machine C1, valve V5, and secondary grinding through the valve V3 in sequence. Roughing flotation machine C2, scavenging flotation machines S1, S2, S3 and fine flotation machines J1, J2, J3, after two roughings, three cleanings and three cleanings, tailings cleaning, cleaning The concentrate returns to the previous operation in order to obtain the final concentrate and tailings products. The sodium bicarbonate of 70g / t parts by weight of water glass and 140g / t parts of sodium bica...

Embodiment 3

[0022]Preferred embodiment 3: if the raw ore is electric furnace slag, then enter into two-stage continuous grinding-flotation process, if the raw ore is converter slag, then enter into two-stage grinding-two-stage flotation process; the two-stage continuous grinding- The flotation process includes sending the raw ore into the ore grinding machine M1 for primary grinding, entering the ore grinding machine M2 through the valve V1 for secondary grinding, and then entering the primary roughing flotation machine C1, valve V5, and secondary grinding through the valve V3 in sequence. Roughing flotation machine C2, scavenging flotation machines S1, S2, S3 and fine flotation machines J1, J2, J3, after two roughings, three cleanings and three cleanings, tailings cleaning, cleaning The concentrate returns to the previous operation in order to obtain the final concentrate and tailings products. The first roughing adds 80g / t weight of water glass and 160g / t weight of sodium bicarbonate as ...

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Abstract

The invention discloses a process suitable for simultaneously separating copper smelting electric furnace slag and converter slag, which comprises the following steps: if the raw ore is electric furnace slag, enter into two stages of continuous grinding-flotation process; if the raw ore is converter slag , then enter the two-stage grinding-two-stage flotation flow process; the beneficial effect of the present invention is to study respectively and propose the best technical process for electric furnace slag and converter slag sorting; adopt "water glass, carbonic acid The combination of sodium hydrogen + sodium sulfide has achieved a separation index of copper content of 0.188 in the tailings. It is proposed to adopt the method of time-sharing and section processing, and use a set of equipment to process two kinds of slag at the same time with different processes, which reduces the production cost.

Description

technical field [0001] The invention relates to non-ferrous metal beneficiation, in particular to a process suitable for simultaneous separation of copper smelting electric furnace slag and converter slag. Background technique [0002] The copper smelting process usually includes two stages of smelting and blowing. The smelting process produces copper matte and smelting slag. The smelting slag contains 2~3% copper. In order to improve the smelting recovery rate, an electric furnace is usually used to make the slag contain 0.6 ~0.9% is waste slag; blister copper and blowing furnace slag (converter slag) are produced during the blowing process, and the slag contains 2~5% copper. The recovery of copper in copper smelting slag (smelting slag, blowing furnace slag) by beneficiation method and the rational utilization of iron resources in it have attracted much attention at home and abroad in recent years. Many smelters usually use two kinds of slag mixed beneficiation, or separa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/00B03D1/002B03B1/00
Inventor 汪永红张源王周和金自文代献仁赵红芬黄萍刘文义左池舟朱新生
Owner 铜陵有色金属集团股份有限公司
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