China Drying Network China Electronic Information Industry Group Co., Ltd. and Shenhua Group stepped up production and cooperation and jointly developed China's first high-power microwave coal drying and upgrading production line, which will be officially delivered to Shenhua Group in November this year. This marks a systematic and highly effective solution to the problems that have plagued the coal industry for many years. The coal drying and upgrading technologies have achieved major historical breakthroughs.
At present, 13% of the domestic coal reserves are brown coal. The sulfur content of lignite is only one-fifth that of normal coal, and there is less air pollution. However, the brown coal has a water content of more than 50%, and the burning value is less than 2,600 kcal. The efficiency is poor and transportation is inconvenient. The traditional method is to remove the moisture from the coal surface by grinding and using hot flue gas. The effect is very bad, and it is easy to cause explosion. The microwave coal drying and upgrading process utilizes the microwave-specific penetrability and polarizability of water molecules, and penetrates deep into the coal. Through internal and external heating methods, the internal moisture of the coal is rapidly heated and vaporized, which not only effectively evaporates coal. The combustion value has increased from 2,600 kcal to over 4,000 kcal, and it has not damaged the quality of coal, and it has become a truly "high-quality coal."
China Electronics’ Nanjing Sanle Electronic Information Industry Group Co., Ltd. (hereinafter referred to as Sanle) is an old military enterprise with a history of more than 70 years. It is the only company in China that can develop and manufacture high-power continuous-wave magnetrons at 915MHz and 2450MHz frequency bands. Microwave generators and industrial production applications. In recent years, Sanle Electronics has closely followed the national industrial development plan and industrial policy orientation, applied military technology to energy and environmental protection industries, achieved industrial transformation and product upgrades, and vigorously carried out R&D and production of microwave energy-saving and environmental protection equipment, and successively developed microwave coal. The dry upgrading, microwave metal smelting, microwave chemical sewage treatment, microwave bamboo charcoalization, microwave solid waste treatment and other projects have achieved major technological breakthroughs and industrialization conditions. From 2011 to now, the sales revenue of the company's microwave energy-saving and environmental protection equipment industry has increased at a rate that doubles every year, and a postdoctoral workstation has been established. Currently, the output value of microwave energy-saving and environmental protection equipment industry accounts for a quarter of the company's total output value, and it is expected to reach 70% in the future. -80%.
Sanle Electronics will build the first domestic microwave lignite drying and quality improvement production line for the Shenhua Group in Inner Mongolia, China, in November this year. It will annually process 200,000 tons of coal. The use of the production line can solve the problem of lignite drying and upgrading that has plagued the Shenhua Group and even the coal industry for many years. The low-temperature microwave dehydration increases the efficiency by more than 30% and the time is reduced by 60% compared with the traditional heating and dehydrating, which fundamentally solves the spontaneous combustion and back-sucking of lignite. problem. The use of this production line can also bring huge economic benefits to the coal companies. It is calculated by Shenhua Group's 50 million tons of lignite processing capacity per year. The value of the treated lignite can realize an economic benefit of about 2.4 billion yuan; By calculating the amount of mud, the added value of the treated slime can realize an economic benefit of approximately RMB 1.7 billion. At the same time, the production line can also solve the social problems caused by lignite, slime, environmental pollution and land occupation, thus creating good social benefits. Taking carbon dioxide emissions as an example, 50 million tons of lignite brown coal can be used to reduce the carbon dioxide emissions of about 30 million tons after being upgraded. Calculated with the amount of 40 million tons of coal sludge processed each year, the treated slime can reduce about 20 million tons of carbon dioxide. Emissions.
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