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Main Problems And Analysis Of Desulfurization Industry In Thermal Power Plant

Last Update:2020-05-10 15:35:03

The construction of desulfurization facilities grows too fast and the scale is too large, which results in the impact on the project quality; the construction period of most thermal power plants' desulfurization facilities is short, which is difficult to meet the requirements of normal construction period. "Low price bid" and "relationship bid" are the outstanding manifestations of the confusion in the current desulfurization market, and their direct consequences will affect the engineering quality and availability of desulfurization facilities construction.

Limestone gypsum method is the main desulfurization process in China, but the desulfurization process route is single, the disposal and consumption of desulfurization by-products have not been paid enough attention, and some power plants have been stacked and abandoned. It is estimated that by the end of the 11th five year plan, 300 million kilowatt coal-fired power generation units will be equipped with limestone gypsum desulfurization facilities. According to the coal type with sulfur content of 1% for a 300 MW unit, 45000-50000 tons of desulfurization gypsum will be produced when it is operated for 5000-6000 hours every year. At that time, 50-60 million tons of desulfurization gypsum will be produced every year. It is very difficult for such a large amount of FGD gypsum to be disposed and consumed, which not only wastes good source and occupies site, but also produces new secondary pollution.

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