The test situation of mixedly burning Indonesian coal and Pinghun coal in boiler no.1 at Beilun Power Generation Co Ltd No.1 has been presented.Directing against the properties of high volatile watter

high water content

and low ash content in Indonesian coal

the influence of mixedly buring Indonesian coal upon slagging in the boiler

and parameters in operation of the boiler and coal pulverizing system has been emphatically analysed

and the problems needing to pay attention being put forward.At the same time

numerical simulation and calculation of related operating conditions have been carried out by using the FLUENT software.Results show that the 40% Indonesian coal being mixedly burning in boiler no.1 of Beilun Power Plant is feasible

it is not necessary to retrofit the coal pulverizing system.This study accumulates experiences of mixedly burning multiple coal sorts

enlarging the applicable range of boiler's fuel coal.