Research on the slagging characteristics of easy to slagging coal in a pilot scale furnace

The analysis results of XRD showed that the initial layer (stage 1) was abundant in anorthite and quartz and scarce in mullite and soda-melilite. The components of the layer in stage 2 were similar to those of stage 1 except that no soda-melilite was included in stage 2. Nevertheless, the slag layer corresponding to stage 3 contained only quartz and sodium anorthite. Moreover, the content of mineral phases in the deposit decreased along the deposit growth direction.