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While the powder industry in the world is developing toward refinement, the important role of deep processing of industrial raw materials in scientific research and industrial production is more and more fully reflected. The U.S., EC countries, and Japan started with smashing equipment, and gradually expanded to various aspects such as super-fine classification, high uniformity mixing, surface treatment, and preparation of nano-powders. The large-scale, diversification, energy-saving, and automation of powder processing equipment is also one of the development trends of the international powder industry.
In recent years, with the continuous formation of emerging industries led by horizontal technologies, China's powder industry is also accompanied by the development and popularization of powder technologies to form scale. Because the processing of solid materials involves all aspects of the industrial field, the relevant process units include: crushing, grading, mixing, dispersing, modification, granulation, drying, sintering, bulk material transportation, storage, powder detection, dust Explosive control and nano powder synthesis. The comprehensive industrial technology features bring vitality to the powder industry. The cross-industry technology diffusion also makes the powder technology market flourish.
However, our country still lags behind in terms of powder technology. For example, ultrafine crushing and grading technologies and equipment are quite mature in foreign countries, and domestic is still in the transition from research to industrialization; fine powder products have few varieties, small output, and low quality, and cannot meet the requirements of high-tech industries for raw materials. The requirements; high-demand powder composite technology is still in the research and development stage; the use of additives and the level of comminution with other chemical unit operations are relatively low; many fields that must use fine powder products still rely on the introduction of foreign equipment and Technology to solve problems, some need to buy foreign products; chemical preparation of ultra-fine powder (nano-powder) technology has gradually emerged, but due to energy costs and other high cost and difficult to large-scale industrial production, its application technology has yet to be developed; The domestic industries that use ultrafine powders have remained at a low level due to the lack of high-quality powder raw materials; some non-metallic mineral products exported to foreign countries have also been sold cheaply due to lack of processing capacity, resulting in resources. Loss.
From another perspective, the prospects for the development of the powder industry in China are very promising. First of all, China has abundant raw materials and markets for powder industry. With the adjustment of domestic industrial structure, various types of new products continue to emerge under the support of new technologies. The refinement of raw materials has increased the demand for ultra-fine powder products in China. In the coatings industry alone, the titanium dioxide used in coatings reached 180,000 tons in 2000 and coated 450,000 tons of kaolin. The demand for powder products in rubber, plastics, coatings, dyes, pharmaceuticals, and chemical industry increased rapidly.
The second is that domestic demand for powder equipment has only increased. Take the following industries for example: In 1998, China produced 210,000 tons of pesticides, 160,000 tons of dyes, 1.86 million tons of coatings, and 2.64 million tons of polyethylene. Even if the amount of ultra-fine processing of these products is only 10%, it will need to be used every year. With thousands of powder production systems, it can be seen how broad the market for technical equipment is.
The third is the need for deep-processing technologies for the export of certain products. The key to this is ultrafine grinding and purification technology. Take non-metallic minerals as an example. There are more than 80 kinds of non-metallic minerals in China, more than 50 kinds have been developed, and the export volume of talc, fluorite and graphite accounts for 40%-50% of the world's total trade volume, but China's annual non-metallic minerals The export of products only earns 2.5 billion U.S. dollars, and averages less than 100 U.S. dollars per tonne. In 1998, China exported 1.08 million tons of talc, of which 66% was talc. The export of talc blocks provides 80% of the raw materials for the talc processing industry in Japan. Although different minerals have different smash value, powder products with a certain range of particle size are more than 3-5 times higher than the original value of raw materials. The potential for foreign exchange for ultra-fine processing of export minerals is considerable. Relevant experts believe that after joining the WTO, we must abide by WTO rules and our government must fulfill its commitments. Therefore, China's powder industry enterprises will face many problems. Professionalism and standards are invisible barriers. In international trade, developed countries use the advantages of patents and other intellectual property rights and formulate technical standards to achieve the purpose of controlling and occupying the international market. In terms of dumping and anti-dumping issues, individual enterprises are in a weak position. Therefore, the establishment and improvement of an industrial organization representing the interests of China's powder industry enterprises, the China Powder Industry Technology Association, will play an active role after joining the WTO.
Powder Technology Overview
With the advancement of science and technology, the development of powder industry has entered the nano-scale field, which is one of the trends in the development of international powder technology. In the US budget for 2001, the R&D expenditure for nanotechnology increased by 84% to approximately US$500 million. Many scientists believe that nanotechnology will be the main driving force for economic development in the coming decades. Today's nanotechnology is like a transistor in the 1950s and 1950s. Its technological development and industrial application will further promote economic development. At the same time, the material revolution brought about by nanotechnology, including the development of lightweight materials and recycled materials, will be able to To ensure sustainable economic development in the future.