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Slag and metal separation device of external electric field between slag and metal

A technology of slag gold separation and applied electric field, which is applied in electrostatic effect separation, solid separation, chemical instruments and methods, etc. It can solve the problems of the impact of the development of the recycled non-ferrous metal industry, the lack of effective means of slag gold separation and recovery of metals, etc., and achieve a concise structure. , The effect of strong slag corrosion resistance and production cost saving

Inactive Publication Date: 2014-01-29
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Before the outbreak of the international financial crisis in 2008, China's recycled nonferrous metal industry had maintained a good momentum of continuous and rapid development, but since the financial crisis broke out in September 2008, the development of the recycled nonferrous metal industry has been greatly impacted
It can be seen that there are still many technical problems to be solved in the field of waste metal recycling and resource regeneration technology, and there is still a lack of effective means for the separation and recovery of metals from slag and gold.

Method used

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  • Slag and metal separation device of external electric field between slag and metal
  • Slag and metal separation device of external electric field between slag and metal

Examples

Experimental program
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Effect test

Embodiment 1

[0030] In this example, see figure 1 , a slag-gold separation device with an external electric field applied between the slag-gold, consists of a feeding device, a slag-gold physical separation system and a recovery system, the feeding device includes a slag hopper 3 and its feeding control system, and the slag-gold physical separation system consists The gold separation bin 9 and the electric field generation system are composed of the slag hopper 3 arranged above the slag-gold separation bin 9, the slag hopper 3 is loaded with the slag-gold mixture 2, and the interior of the slag-gold separation bin 9 is a vertical material gravity channel, and the electric field is generated The system includes a group of two polar plates of the same polarity and a group of polar plates of different polarities. In the slag-gold separation chamber 9, a positive potential area space and an electric field action area space are sequentially generated from top to bottom. The polar plate provides...

Embodiment 2

[0035] This embodiment is basically the same as Embodiment 1, especially in that:

[0036] In this example, see figure 2, at the bottom of the slag-gold separation chamber 9, a particle size grading baffle is set in the metal recovery area, which is the regenerated metal particle size grading baffle 10', and the regenerated metal particle size grading baffle 10' is arranged in parallel with the slag-gold separation baffle 10 The recycled metal particle size grading baffle plate 10' divides the metal recovery area into two particle size grading metal recovery areas, the residual metal particles 11 in the slag-gold mixture 2 are offset and fall toward the direction of the positive electrode plate 7, and the slag-gold mixture 2 passes through as a whole After the electric field action area, under the action of the electric field, the slag 8 is separated from the residual metal particles 11, and the separated residual metal particles 11 cross the top of the slag-gold separation b...

Embodiment 3

[0038] This embodiment is basically the same as the above-mentioned embodiment, and the special features are:

[0039] The cathode electrode 6 and the anode electrode 7 have the same structure, and the cathode electrode 6 and the anode electrode 7 can move up and down along the inner wall of the slag-gold separation chamber 9, so that the height position of the electric field action area in the slag-gold separation chamber 9 can be adjusted as required , to meet different slag-gold separation requirements, combined with voltage control, it can further meet the needs of separation of different metal particles.

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Abstract

The invention discloses a slag and metal separation device of an external electric field between slag and metal. The slag and metal separation device is composed of a feeding device, a physical slag and metal separation system and a recycling system, wherein the physical slag and metal separation system is composed of a slag and metal separation cabin and an electric field generation system; the electric field generation system comprises a set of two polar plates with the same polarity and a set of polar plates with different polarities; a positive potential region space and an electric field acting region space are formed in the slag and metal separation cabin in sequence from top to bottom; electrons are provided for a slag and metal mixture by a furnace slag hopper; the slag and metal mixture falls into the positive potential region space to enable residual metal grains to be electrified; then the residual metal grains are moved towards the appointed polar plate under the effect of the electric field so that the residual metal grains are separated at a state of being separated from the slag, are conveyed out by the recycling system and are collected into an appointed container. According to the slag and metal separation device, the residual metal grains are separated from the slag under the effect of the electric field according to the conductive difference of the slag and the metal, so that the metal recycling rate is improved, the process is simple, the material cost is low and the slag and metal separation device is suitable for industrial application.

Description

technical field [0001] The invention relates to a metal recovery device or a waste metal resource regeneration device, in particular to a device for extracting metal particles in slag, which is applied in technical fields such as metallurgical refining and slag residual metal extraction. Background technique [0002] Recycling and utilization of waste metals and resource regeneration is an important part of the development of circular economy. The National Development and Reform Commission has regarded the recycling and utilization of scrap metals as an independent industry in the development of the national economy, and formulated the "Eleventh Five-Year Plan and Medium and Long-term Development Plan of China's Recycled Metal Industry" to guide and support the industrial development of recycled metals . Since 2004, the state has not only given policy and financial support to key fields and key projects in the recycled metal industry, but also listed a number of recycled me...

Claims

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Application Information

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IPC IPC(8): B03C7/12
Inventor 张捷宇石瑞曾涛王波郭艳玲李建朝王耀杰许继芳
Owner SHANGHAI UNIV
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