Kaolin, Bentonite And Other Mineral Resources Development And Utilization
Mineral resources occurred in coal refers to coal formation in symbiotic or associated with coal or other mineral elements occur in the majority of our coal measures, are non-renewable resources. Give full play to its advantages in resources and enhance its development, processing and utilization level is imperative.
A domestic and international technological trends
1. Mining Technology (1) large scale equipment. Currently the U.S. has been widely used as a large hydraulic shovel shovel loading equipment, implementation of the rapid shift between the working face. Large wheeled loading machine developed in recent years, mainly truck, load capacity has reached 327 tons.
(2) development of high technology equipment. With the numerical calculation, the global satellite positioning, unlimited high-speed high-frequency two-way data communications and flat panel displays and other new technologies, new equipment, remote central monitoring and surveillance through the mining equipment, loading, transport and unloading operations will be fully automated or remote remote control. Unmanned mining system, intelligent mining has become a developed mining industry development direction.
2. Beneficiation technology (1) special techniques are emerging. Although many mineral processing operations in the crushing, grinding, grading and concentration drying process technology in general has become mature, but some minerals beneficiation technology development needs to continue to improve. These minerals, development and application of new technology at home and abroad, new technology and new equipment developments are accelerating the trend, leading to a special dressing techniques are emerging.
(2) mineral processing equipment for R & D continued to make progress. Industrial mineral processing technology to improve the level of developed countries, continue to research and development of new mineral processing equipment, in the re-election, magnetic separation, flotation devices, and other aspects of the remarkable progress. Current research and development of domestic mineral processing equipment, the skill level has went up to a new level, made some progress.
(3) optimal control system under development. 90’s of last century, many processing operations, the application of advanced technology through the section, concentrator equipment from most of the logistics system, stop to achieve a centralized control, has made great economic benefits. Research and development of foreign mining developed countries are optimized concentrator plant-wide control system, towards the optimization, automation and direction.
(4) development and utilization of tailings attention. First, select some value from the tailings of the components, manufacturing of high value-added products; Second, the value will no longer select the use of tailings as a whole, with its main material manufacture various products.
3. Mineral processing technology (1) ultra-fine grinding and fine grading technology. This technology is the most important coal were associated minerals processing technology one of its key facilities. In this field in Japan, Germany, the United States, Canada and other countries have been elected to the level in the world. The main development trends in China: A, grade fine grain size, high accuracy, processing capacity, low energy consumption per unit of product, wear, high efficiency and fine grading equipment will continue to be developed applications. B, smash the limit of small particle size, crushing and processing power than the large, low energy consumption per unit of product, wear a small, high efficiency, wide scope of application, or can be used for low melting point, toughness, high hardness, flammable and explosive materials such as special processing ultrafine grinding methods and equipment will be continuously developed and applied. C, the size of existing detection methods and apparatus will be further improved, material size and size distribution of automatic control technology will be continuously developed and applied.
(2) modification of mineral technology. The first modification techniques and equipment, supporting and improving the presentation there is a broken trend; second activator in the development and research into focus; Third, through the chemical treatment, surface modification and heat treatment method to change the mineral’s chemical, physical properties and surface physical properties.
(3) fine purification technology. With the aviation, aerospace, electronics and high-tech ceramics and other fields on the purification of non-metallic minerals have become increasingly demanding, greatly contributed to mineral micro-fine purification technology. This technology will be needed to develop a mainstream technology.
(4) calcining process and equipment. At present, the calcining process and equipment has become China’s coal development and utilization of mineral resources occurred in the technical bottleneck, vigorously develop advanced coal burning technologies and associated resources of large scale equipment has become an inevitable trend, and will form a huge market potential industry.
(5) mineral material processing technology. As information, new materials, new energy, aviation, aerospace, biochemical, special coatings and the rise of new industries such as the development of environmentally friendly products, mineral materials on the functional composition and crystal structure of increasingly stringent requirements, but can be directly as a function of the number of natural mineral materials is very limited. In recent years, processing and synthesis of functional materials and technology have become a new mineral processing technology of mineral material mainstream.
Second, technical measures
1. Actively the establishment of enterprises as the mainstay, Industry and Academia with the technological innovation system, the key and major technology development organization, to promote coal development and utilization of mineral resources occurred in the industrialization of scientific and technological achievements; actively foster and develop the technology market, using market mechanisms to promote new technologies, new processes, new products, new equipment, extension and application.
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