In mid-May, the foundation of the new desulfurization process building for the second phase of Haidian was excavated, marking the official start of the upgrading of the desulfurization and capacity expansion of the two units. The project is expected to be completed on December 15 and enter 168 trial operation. After the capacity expansion and transformation, the desulfurization efficiency can reach over 98%, and the sulfur dioxide emissions can be reduced by 65,065 tons per year, which has very good environmental and social benefits.

In January 2003, Haidian Phase II Units 3 and 4 were completed and put into operation. Five years later, the national environmental protection requirements were required. In August 2007, the desulfurization system was started. The system uses two furnaces and one tower, limestone-gypsum wet process, and desulfurization. 97% efficiency. Later, due to changes in the coal market, the actual boilers used more complex coal, coal sulfur content higher than the desulfurization system design, resulting in the original desulfurization device is difficult to adapt, resulting in overburdened desulfurization facilities put into operation, often appearing In the case of public utilities, the production and supply of absorbents and the dehydration of gypsum cannot meet the operational requirements, and it is even more difficult to meet the discharge requirements for environmental protection. From the perspective of politics, Haidian has invested more than RMB 60 million in desulfurization and capacity expansion under the support of the Northern Company.

This reform program follows the principle of using the original desulfurization system equipment as much as possible, reducing investment, adopting mature and convenient operation and reliable technology, and subdividing the construction within the island and the construction outside the island into three sections: island reconstruction, island reconstruction, and desulfurization waste water. Maintained the limestone-gypsum wet desulphurization process of the original system and increased the calcium carbide-gypsum wet desulfurization process system, changing the two furnaces and one tower to one furnace and one tower. The original absorption tower was used to treat the flue gas from the No. 4 generating unit. The absorption tower is used to treat the flue gas from Unit 3, and the new desulfurization utility system includes a limestone pulping system and a post-treatment system.

It is expected that after the transformation, the concentration of sulfur dioxide at the outlet will be 200 mg/m3 and the export dust will be less than 50 mg/m3, which will meet the relevant national and local emission standards.

Cabinet Locks

Cabinet Safety Lock,Cabinet Slide Lock,Child Safety Locks,Sliding Door Safety Lock

NINGBO DAIKE INTELLIGENT TECHNOLOGY CO.,LTD , https://www.dakerhardware.com