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Photo 15: In one of the mix<strong>in</strong>g nozzles, it was found th<strong>at</strong> the coal lump was ly<strong>in</strong>g above thro<strong>at</strong>.<br />
The Coal dust could build up from here.<br />
Photo 16 & 17: The above were snaps from old mix<strong>in</strong>g nozzle <strong>in</strong>let chutes. The coal dust was<br />
seen stick<strong>in</strong>g <strong>in</strong>side the mix<strong>in</strong>g nozzle <strong>in</strong>let chute. This must have occurred more <strong>in</strong> the old<br />
mix<strong>in</strong>g nozzles, as they were always on positive pressure <strong>at</strong> thro<strong>at</strong>.
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