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Abstract: This paper analyzes the industrial and utility boilers in China smoke and dust removal and desulphurization, and introduced the main flue gas desulfurization domestic enterprises. An industrial boiler furnace of smoke and dust Coal-fired industrial boilers in China, divided into evaporation 1t / h of production, heating boiler; out widely tea bath heaters, stoves and more households, public blessing cooking stoves; industrial furnace. 1, 1t / h of production, this part of the boiler heating boiler combustion machinery generally, complete combustion and dust removal equipment, install the rear. In the operation management of a good situation, to meet the national standards for boiler discharge of atmospheric pollutants. Where 1 ~ 10t / h coal-fired boilers, multi-multi-pipe cyclone dust collector, dust removal efficiency is usually 90% to 95% of the grade efficiency dc50 fine dust around in the 5 m; 10t / h coal-fired boilers, multi-use Venturi granite dust, dust removal efficiency is usually above 95%, the efficiency of the classification of fine dust in the 3 m dc50 around. 2, tea bath furnace, public blessing kitchen, a small coal stove the stove cooking large civilian wide, it is a low-stack emissions, the boiler combustion efficiency is low. In recent years, these small stove, used to change the fuel mix in the big cities and Burning coal, significantly reduces emissions. But in small towns, especially in rural areas, civil heating, cooking is still the direct burning of coal, high concentrations of pollutants discharged. 3, mainly used for heating of industrial furnaces, forging, drying, sand, and more for the hand-burning furnace, the coal in Canada, poke the fire stage, the smoke billowing. Although in recent years done a lot of restructuring in the energy, but in many areas, this part of the kiln exhaust gas concentration of a large, black Ringelmann degree in two or more development is still pressing furnace pollution control equipment. Second, industrial boiler flue gas desulfurization Through the "Ninth Five-Year" key project, and promote China's industrial boiler flue gas desulphurization technology's further development. "Wet desulphurization technology and equipment research" is aimed at small and medium sized coal-fired boilers in China out widely, the great differences of burning coal, is the impact of environmental quality of urban air pollution status of the main projects undertaken by. It is in the "Eighth Five-Year" based on scientific and technological research and development of the five types of series products and typical desulfurization process, and has been applied in the project. Has wide application, stable investment and low running costs, while addressing the prevalence of domestic gray water pollution, shorter service life, equipment, with serious water and calcium-based desulfurization system easy to scale and other common problems. The overall study of international advanced level, and received four patents in China, is a practical technology for China's national conditions. Present, China 10t / h coal-fired boilers using high quality coal and tail easy wet desulfurization technology, high quality coal sulfur content 0,5%, ash 10% of the general summary removal efficiency of 30% ~ 50%; 10t / h coal-fired boilers water film with granite dust desulfurization, desulfurization efficiency is usually 30% to 60%, collection efficiency above 96%. Three desulfurization power plant boiler 1, sulfur dioxide emissions and pollution Sulfur dioxide emissions in China ranks first in the world, has for many years more than 20 million tons, sulfur dioxide emissions from thermal power plants of which nearly 50% of the total, the two controlled areas of total sulfur dioxide emissions account for 60%. China's acid rain and sulfur dioxide pollution is serious, acid rain area already accounts for 30% of land area, acid rain and sulfur dioxide pollution, economic losses caused by more than 100 billion yuan annually. Determine the characteristics of China's energy structure to control the sulfur dioxide emission coal sulfur dioxide pollution is the focus of our control, and control power plant emissions of sulfur dioxide is the key to control the coal sulfur dioxide pollution. At present, China mainly adopted the use of low-sulfur coal, shutting down small thermal power units as well as some thermal power plants to install flue gas desulfurization devices, measures to control sulfur dioxide emissions from thermal power plants, which contributed the most to use low sulfur coal. The decision by China's national conditions, the future control of power plant pollution of sulfur dioxide is the main flue gas desulfurization. But so far, China does not have all more than 20 GW FGD capacity to design and equipment packages. Due to technical, economic and policy reasons, the current flue gas desulfurization project in China has been in operation total installed capacity of thermal power plant was 510,5 million kilowatts, accounting for the country's 2,1% installed capacity of thermal power plants, thermal power plant flue gas desulfurization project has been slow. According to international experience, flue gas desulphurization and desulphurization technology policy of the state departments concerned, the future of our FGD wet FGD technology is the main line, supplemented by other methods. Thermal power plant flue gas desulfurization industry has several typical characteristics: desulfurization investment, running costs are high, and the main benefits is the environmental benefits; is a typical type of policies to guide industry, national policies have an enormous impact. We are high quality suppliers, our products such as electric barbecues , China bar b que grills for oversee buyer. To know more, please visits indoor electric grill.
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