Development and research of tailings re-election and smelting slag beneficiation equipment

technical background

With the continuous development of mineral resources industry, the total amount of solid waste generated was the rapid growth, and these wastes valuable metal symbiotic, relationship associated complex, the existing production process can not be effectively integrated its recycling of valuable components, As a result, the valuable components are lost in vain, which pollutes the environment and causes waste of resources.

The solid waste generated by the mineral resources industry, especially the dangerous solid waste therein, will become a potential threat to the human ecological environment if it is not disposed of properly. In the past few decades, China's mineral resources development has paid more attention to production, neglecting the recycling and harmless treatment of solid waste, resulting in ecological damage and environmental pollution in mining areas and surrounding areas of smelters.

Compared with the conventional sulfide flotation, flotation tailings and slag has the following characteristics: 1, the ore specific gravity; 2, a high concentration into the mineral pulp; 3, slag valuable metal cloth embedded particle size was coarse, fine fraction More, the special distribution law with less intermediate granularity. In the tailings and slag flotation process, the conventional flotation machine often sinks, which greatly affects the continuous normal production of the concentrator.

The successful development of this project has filled the blank of special flotation equipment for tailings re-election and slag flotation at home and abroad, and solved the international technical problems of tailings and smelting furnace slag ratio, high concentration and easy sinking. The overall technology has reached international level. Advanced level. It is helpful to the recycling and reuse of China's mineral resources and solid waste, which not only eases ecological pressure, but also helps improve China's resource utilization. The main innovations are:

1) Medium specific speed type impeller and closed disc stator system, large amount of aeration, strong suspension capacity of the ore; 2) Multi-cycle channel design can form a strong directional circulation flow in the tank, large circulation, and increase of small specific gravity mineral The probability of mineralization to the bubble; 3) The design of the choke plate makes the large-volume mineral suspension layer in the upper part of the flotation machine, which increases the chance of the large-weight minerals effectively adhering to the bubbles, the foam layer is stable, and there is no turning and sinking. 4) It has a short-circuit circulation hole that can be adjusted according to the nature of the material, which enhances the applicability; 5) The liquid level automatic control system works reliably and has flexible configuration.

Application prospects

The special flotation equipment for tailings re-election and smelting slag selection is a kind of high-efficiency and energy-saving tailings re-election and smelting slag selection for the technical problems of tailings and smelting slag ratio, high concentration and easy sinking. The special flotation equipment has reached the advanced level of the international similar flotation machine. The research of this project has successfully filled the blank of domestic tailings re-election and special flotation equipment for smelting slag sorting, solved the international problem of difficult selection of tailings and smelting furnace slag, and will greatly promote the progress of China's mineral processing technology and help solve The recycling and reuse of non-ferrous solid wastes in China not only alleviates the ecological pressure, but also helps to improve the utilization rate of resources in China, and meets the circular economy requirements for improving the comprehensive recycling of resources.

The development of this project has successfully filled the blanks of special equipment for tailings and slag flotation at home and abroad, solved the technical problems of tailings and slag ratio, high concentration and easy sinking, and its overall technology has reached the international advanced level. It can help solve the recycling and reuse of China's mineral resources solid waste, which not only eases ecological pressure, but also helps improve China's resource utilization. The flotation machine is of high quality and low price, has strong competitiveness, can enter the international market, and at the same time drive the development of related electromechanical industry.

Currently, the technology is widely used in Jiangxi Copper Group, Chengde Shuangluan Jianlong Mining Co., Ltd. Fengning win Trade Co., Ltd. and other domestic dozens of mines and exported to Australia, Peru and other countries, according to incomplete statistics The annual economic benefit can be 80,642,200 yuan. The equipment can be widely used in tailings re-election and flotation operation of smelting slag, and can also be applied to the selection of minerals similar in nature to tailings and smelting furnace slag, such as quartz sand purification, iron concentrate purification and impurity reduction, etc. It can also export foreign exchange, and has broad application prospects and significant economic and social benefits.