To better protect the rear section of steam demand, Hao Yuan Company # 4 on March 6 boiler overhaul. Scheduled maintenance period is one month. 

4 # boiler system has been running for nearly two years, long-term operation without maintenance there will be some problems, has appeared in the heated parts wear, corrosion, leaks, and also have an effect on the production of stabilized section using steam units. To do this, you need to repair the boiler, and the air preheater, economizer and partially due to severe erosion wear water wall tube replacement. 

According to plan, shop managers will drum, water wall, a secondary fan, fan, etc. thorough examination to exclude risks, to ensure the use of safety equipment, improve equipment operation cycle, lay the foundation for the production of stable operation.