Operation of calcium carbide slag flue gas desulfurization unit

Recently, with an investment of 120 million yuan, the first set of 300000 kilowatt calcium carbide slag gypsum flue gas desulfurization device with independent intellectual property rights in China, Xinjiang Tianye 4 * 135 MW unit desulfurization phase I project was launched, marking a great step forward in the development of flue gas desulfurization technology for large-scale coal-fired power stations in China towards localization and industrial process. At the beginning of 2007, with the start of 4 * 135 MW thermal power unit project of 400000 tons PVC project in Xinjiang Tianye, Xinjiang Tianye Group, as the only pilot enterprise of circular economy recognized by the first batch of the state in Xinjiang, cooperated with Zhejiang University. After more than a year's efforts, the carbide waste produced in the production process of Tianye Group was used as desulfurizer to transform the desulfurized waste into desulfurized waste It is gypsum, which is used to produce cement as slow release agent. Zhang Zengli, manager of 4 * 135MW thermal power desulfurization project of Tianye self provided power plant: "the desulfurization efficiency of our desulfurization device can reach 96%. This technology can fully absorb the flue gas in the large tower, and the amount of sulfur dioxide that can be reduced each year is about 30000 tons, and the amount of dust that can be reduced is about 2000 tons.", China produces nearly 20 million tons of carbide slag and 25 million tons of sulfur dioxide every year. The 4 * 135 MW unit calcium carbide slag gypsum desulfurization unit of Xinjiang Tianye has a good prospect of application and demonstration significance. Cheng Changjie, a professor Engineer at the Institute of environmental engineering, Zhejiang University and general manager of Zhejiang Tianlan desulfurization and dust removal Co., Ltd., said: "the successful operation of this project has broken the dependence of desulfurization technology of large domestic thermal power plants on foreign countries, It is of great demonstration significance for the application of domestic independent intellectual property desulfurization technology in large-scale thermal power plants, and puts the technology of carbide slag desulfurization on the level of large-scale industrialization.