With the development of China's economy and the strengthening of the state's financial resources, resource constraints are gradually replacing capital constraints and gradually becoming the main contradiction in the country's economic development. The shortage of China's mineral resources has become a "bottleneck" that restricts the country's economic development. According to relevant statistics, although China's mineral resources are very rich in reserves, most mines have low ore grades, mostly multi-component (companion), mineral inlays are fine-grained, and existing mineral resources are becoming poorer and poorer, more difficult to choose, coupled with the old aging equipment, low level of automation, low management level, the low recovery rate of ore dressing, inevitably caused "hidden" waste of some mineral resources. At this stage, the comprehensive recovery rate of mining and mining in China's non-ferrous metal mines is only 60% to 70%; in the case of iron ore mines, the annual output of tailings is several hundred million tons, and the average iron content is about 11%, resulting in a large loss of metallic iron. In the tailings.
With the current changes in the mining situation, the market and technology are changing faster and faster, and the competition is becoming more and more fierce. How to accelerate the speed of technological innovation through technology and management innovation, improve the comprehensive utilization rate of mineral resources, improve the level of automation, and enhance the economic value of products. Reducing the energy consumption and cost of mineral processing, and comprehensively improving the comprehensive control and decision-making level of mines has become an inevitable trend in the future development of mineral processing technology.
I. Future technical requirements for the overall beneficiation process
(1) Scale of plant selection
(2) Large, efficient and intelligent mechanical equipment
(3) Comprehensive utilization of minerals
(4) Comprehensive recycling of water resources
(5) High-efficiency and non-toxic recycling of ore dressing agents
(6) Intelligent production process
(7) No tailings discharge
2. Future Mineral Processing Technology Needs
Usually, the beneficiation technology is mainly based on the selection and research, and development of metal minerals. Most of the mineral processing technologies are minerals with unique topography and structure. Today's beneficiation technology is gradually changing with the advancement of technology. It can take advantage of the advantages of technology and sorting technology to rapidly increase its practical application range. Therefore, relevant researchers need to combine a variety of technical knowledge, incorporate some new theories, and continue to innovate on this basis.
How to improve the technology in mineral processing, we must start with the most basic machinery and equipment, and at the same time select the appropriate mineral processing reagents, and then use the mineral processing technology with higher application value.
(1) Research and development of new mineral processing equipment.
More efficient mineral processing technology must be supported by more efficient materials and equipment. The technology and equipment for mineral processing are in a stage of common development. Therefore, the development of mineral processing technology is inseparable from the innovative development of reagent materials and equipment, the development of high-efficiency and low-energy mineral processing equipment, the development of new weak magnetic, medium magnetic, and strong magnetic machines, the development of high-efficiency mineral processing equipment for magnetic gravity and floating, and the integration of high efficiency. Development of grinding equipment, development of large-scale suspension roasting furnace, research and development of large-scale horizontal mixing mill, particle size characteristics of grinding mill grinding products and their influence on the selection index, grinding process of large-scale self-grinding mill Research on simulation and automatic control technology, high-efficiency dust removal equipment in the concentrator, and three-waste treatment and recycling equipment are all problems that the future mineral processing workers need to break through.
(2) Research and development of high-efficiency, environmentally friendly, and low-temperature flotation reagents.
For the current metal minerals, the destruction of the surrounding environment by the traditional mineral processing technology is very huge, causing great pollution and damage to other resources. Research and development of molecular structure design of flotation reagents based on mineral crystal characteristics, synthesis of new flotation reagents, and flotation performance characterization techniques. On the basis of mineral selection, high-efficiency, environmentally friendly, low-temperature flotation reagents will not be used for other fine minerals. The composition of the resources has an impact and does not bring other pollutants. From this aspect, it can be seen that the practical application prospect of the less polluting flotation agent is very broad, and it can not only reduce the actual beneficiation cost but also reduce the pollution degree to the surrounding environment as much as possible, which is in the future. In terms of development, how to achieve sustainable development is the development direction of current technological innovation.
All in all, the space for research in mineral processing technology is still very huge. On the way of integration and development of various technologies, it is still necessary for the corresponding personnel and researchers of the current mineral processing technology to continue to explore and innovate for the multi-metal. The development of mineral processing has made the greatest contribution, and at the same time, we must do a good job in environmental protection and do our part for the sustainable development of our country.