Abstract:For a long time, the application of primary air and powder accurate measurement and control in power plants is very limited. Therefore, the adjustment of air and powder is very extensive, and limited the combustion performance. Take Luyang power plant boiler No.1 as example, introduced the new type accurate air and powder measure system, airpowder balance adjustment .Accurate boiler pulverizing adjustment and balance combustion was fulfilled. CO production was reduced. CO, NOxand O₂ uniformly distributed in combustor. It played an important role in the operation of the system, energy saving and emission reduction. 

Keywords:air and powder monitor, air and powder balance, combustion improvement, aircoal ratio