Device for gathering liquid drops in metal slag by adding pulsed electric field

Abstract

The invention discloses a device for gathering liquid drops in metal slag by adding a pulsed electric field. The device comprises a controller, a pulsed power supply and a reaction furnace, wherein a series of electrode plates are inlaid on a furnace body and correspondingly connected with electrode ends of the pulsed power supply, and an electric field generation system is formed; a slag-metal system in the reaction furnace is under the action of the electric field, the pulsed power supply is controlled to charge the slag-metal system, and the pulsed electric field is generated; and after charging of the slag-metal system is completed, the metal liquid drops in the slag-metal system move in the electric field action zone under the action of the electric field, and the metal liquid drops diffused in the metal slag are gathered and grown and fall into the bottom of the slag-metal system to form a metal liquid tank, so that a metal liquid is recovered. According to the device, the metal liquid drops move and are gradually gathered under the electric capillary action by adjusting electric field force of the metal liquid drops in the slag during charging, so that residual metal is separated from the slag, the metal recovery rate is increased, the process is simple, the material cost is low, and the 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 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...

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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

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