On a one-dimensional furnace and ignition furnace form TPRI

blend burning tests of two Indonesian coals and Datong coal、Zhungeer coal、Shenhua coal、Pingshuo Coal、Yanzhou Coal were carried out.Moreover

the co-firing characteristics of the coal mixtures were analyzed.The results show that:the two Indonesian coals have low ignition temperature

which are easy to burn;when co-fired with the domestic coals

the two Indonesian coals can reduce the activation energy of the domestic coals

thus to improve the coal mixtures' ignition temperature;the two Indonesian coals have high burnout rate

Indonesia coal with low calorific value should not be co-fired with the low volatile coal;the Indonesian coal with high calorific value exists the optimum burnout rate and blending proportion when co-combusted;both the two Indonesian coals have a strong slagging tendency

so being co-fired with coals have low slagging tendency can effectively reduce the mixtures' slagging property.