Apparatus for gathering droplets in metal slag by applying pulsed electric field

A technology of pulsed electric field and metal droplets, applied in the direction of process efficiency improvement, recycling technology, etc., can solve the problem that the separation efficiency of molten slag and metal droplets is difficult to control, lacks effective means for separation and recovery of metal from slag and gold, and is not suitable for industrial production Application and other issues, to achieve the effect of simple structure, strong corrosion resistance of slag, and time saving

Inactive Publication Date: 2016-03-30
SHANGHAI UNIV
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Problems solved by technology

The increase of the applied voltage will increase the potential gradient at the slag-gold interface, and the enrichment rate of cathode copper will increase significantly, but the power consumption will increase a lot, which is not suitable for industrial production and application.
[0007] The above studies have done a lot of theoretical and experimental research on the aggregation and growth of metal droplets, but there is no complete technical solution for the device for the aggregation of droplets in metal slag, and it is difficult to achieve effective integration with various smelting processes. The device is still not suitable for industrial application, and the separation efficiency of slag and metal droplets is not easy to control. 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. effective means

Method used

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  • Apparatus for gathering droplets in metal slag by applying pulsed electric field
  • Apparatus for gathering droplets in metal slag by applying pulsed electric field
  • Apparatus for gathering droplets in metal slag by applying pulsed electric field

Examples

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Embodiment 1

[0035] In this example, see Figure 1 ~ Figure 3 , a device for gathering droplets in molten metal slag by applying an external pulse electric field. It is composed of a controller I, a pulse power supply II and a reaction furnace III. A series of electrode plates are laid and inlaid on 2, and each electrode plate is correspondingly connected to the electrode end of the pulse power supply II to form an electric field generation system, so that the slag-gold system 4 in the reaction furnace III is under the action of the electric field, and the controller I is connected to the pulse power supply On II, control the output voltage mode of the pulse power supply II. The electrode plates installed on the furnace body 2 are mainly composed of a set of plates with the same polarity and a set of plates with different polarities. Potential area space and electric field action area space, the positive end of pulse power supply II provides an external positive potential to a group of pla...

Embodiment 2

[0042] This embodiment is basically the same as Embodiment 1, especially in that:

[0043] In this example, see Figure 4 , plates with different polarities are composed of vertical negative electrode plates 3' and vertical positive electrode plates 7', vertical negative electrode plates 3' and vertical positive electrode plates 7' are arranged in parallel in a vertical arrangement, and installed insulated On the side wall of the furnace body 2, the vertical negative electrode plate 3' and the vertical positive electrode plate 7' are electrically connected to the other positive terminal and the other negative terminal of the pulse power supply II respectively, so that the vertical negative electrode plate 3' The region where the slag-gold system 4 is located between the positive electrode plate 7' and the vertical positive electrode plate 7' forms an electric field action area space, and the pulse voltage applied by the pulse power supply II makes the electric field in the ele...

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Abstract

The present invention discloses a device that is an outer plus pulse electric field to make the liquid droplet gathered in the metal slag. It consists of a controller, pulse power supply and reaction furnace.Extreme corresponding connection, forming an electric field generation system, so that the dregs gold system in the reaction furnace is under the influence of the electric field. Control the pulse power supply to charge the slag gold system and generate the pulse electric field.Metal droplets are moved under the effect of electric field in the area of electric field, so that metal droplets that are diffused in metal slag gathered and grew up.EssenceThe present invention can be dripped in the electric field force by adjusting the charging metal liquid drip in the slag, so that the metal droplets exercise and gradually gather under the action of electric hair, so that the residual metal is separated from the slag, thereby increasing the metal recovery rate. The process is simple, the material cost is low, 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 residual metal in slag, which is applied in technical fields such as metallurgy and waste metal recovery. Background technique [0002] Recycling and utilization of waste metals and resource regeneration is an important part of the development of circular economy. Due to the metallurgical process, a certain amount of metal particles will be melted in the slag due to the low particle size, which will cause metal waste. Therefore, in this case, by studying the movement of metal droplets in the electrolyte under the action of an electric field, trying Find an effective method to effectively extract this part of the metal, on the one hand, it can improve the utilization rate of ore, on the other hand, it can save a lot of energy and protect the environment. Copper smelting slag is the main by-product in the copper smelti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B7/04C21B3/04C22B15/00
CPCY02P10/20Y02W30/50
Inventor 张捷宇曾涛李建朝郭艳玲王波赵坚许继芳石瑞
Owner SHANGHAI UNIV
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