Straw weeds, litter, tree wastes... These biomasses, which are often discarded or incinerated to produce pollution, can now be cut into powders and burned as fuel. After large-scale promotion, they can replace coal, natural gas and other energy sources. On the 3rd, Huazhong University of Science and Technology Environmental School officially released this research result. Micron technology shreds and burns straw China produces 700 million tons of straw, 200 million tons of forestry waste, and 2.5 billion tons of cultured excrement each year. Most of them have no way out. These ecological energy sources have not only become energy but have become pollution burdens. “When we saw a lot of parasol trees in the school, we suddenly came to inspiration.†Professor Xiao Bo of the Huazhong University of Science and Technology School of Environmental Studies said that since 2002, his team began research and development of biomass micron fuel and its high-temperature combustion technology, and Breakthrough in recent years. Using self-developed equipment, the team was able to efficiently disintegrate ordinary waste biomass into powdered fuels with particle diameters below 250 microns, like flour, ie, “micron fuel,†making it easy to store, transport, and scale supply. The team then developed a dust cloud combustion technology that instantaneously completes the conversion of solid fuels to gaseous fuels and rapidly produces high-temperature effects. In April this year, the technology was applied to Wuhan Meitaikang Medical Materials Co., Ltd. in Xinzhou District, Wuhan City. A 4-ton micro-fuel boiler continues to provide steam for the production of medical gauze, which has the same energy efficiency as a natural gas boiler. After testing, there is no tar and black carbon powder in the combustion exhaust gas, and the dust separated from the flue gas purification is a white powder like lime. These white powders are non-combustible metal oxides that remain after combustion of hydrocarbons in biomass at temperatures above 1400 degrees. They can be returned to the field or used as raw materials for industrial materials after bag dust collection. Or can replace fossil fuels According to Prof. Xiao Bo, at present, some regional industrial boilers are prohibited from burning coal, and the cost of natural gas industrial boilers is high. If all biomass micro-fuel industrial boilers are used in China, annual fossil fuel consumption of about 600 million tons of standard coal can be reduced, annual use of agricultural and forestry wastes will be more than 1 billion tons, and all straw and agricultural and forestry wastes will be consumed, adding 300 billion yuan to farmers. Income, and formed China's industrial boiler equipment system and biomass energy equipment system with independent intellectual property rights. Yao Kefu, a professor at the School of Materials Science and Technology at Tsinghua University, believes that the invention of the Xiao Bo team is a historic breakthrough in biomass energy technology. It will be able to end the history of high-temperature industrial production that must fully adopt coal, fuel and gas. Industrial production will be able to escape from the current complete dependence on The passive situation of fossil fuels. However, Xiao Bo proposed that although biomass micronized high-temperature technology can solve the core problems of low-carbon industries, it will become a low-carbon industry for future metal smelting, industrial boilers, building materials, heating, thermal power generation, gas fuel conversion, and biomass chemicals. The protection of ecological energy was provided, so that “waste wood†really became “goldâ€. However, because the country has not yet established the infrastructure for the collection, collection and transportation of biomass energy, it cannot achieve large-scale and high-efficiency production, storage, and transportation as fossil energy, and as a supply of commodity energy, the application of this technology at this stage can only be achieved through traditional methods. The collection, in most cases, uses the leftovers of agricultural and forestry products processing. The source is small and the price is high. A large amount of surplus agricultural and forestry biomass resources are still burning. Therefore, experts also suggested that the government could gradually make biomass energy cheaper and more readily available through the establishment of infrastructure demonstrations for the collection, preparation, storage and transportation of biomass raw materials, and form an ecological energy industry that uses biomass micronization as its core technology. chain. (Reporter Peng Wei's correspondent Wang Hao Zhang Xinyi) Smco2:17 magnet is also named Sm2Co17. Prorated with metallic samarium, cobalt, copper, iron and zirconium, are firstly those roughcasts with different properties and grades after series technology processing from melting, milling, pressing to sintering in order. The (BH)max ranges from 20 to 32 MGOe, and maximum working temperature is 350 ℃. Sm2Co17 bears a extremely low temperature coefficient and preferably anti-causticity. 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