A pulverizer mill with a rotating throat/air port ring ...
Oct 02, 1996· In Figure 1 there is shown one embodiment of rotating throat/air port ring assembly 10 of this invention installed in a pulverizing mill including a rotating bowl 20 within a housing 22. A grinding member 24 is positioned and retained in the mill in such a manner that it crushes solid material present in the bowl as the bowl is rotated.