Overair and clinkers, directly related?

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CorrosionMan
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Location: SE Ohio - Carrolton/Kilgore/Perrysville -- inbetween
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Post by CorrosionMan » Tue. Dec. 26, 2017 6:51 pm

Was reading somewhere, that CLAIMS too much overair will cause clinkers.

Please explain how that can be?

Was on some DS product literature I think.


 
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Lightning
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Post by Lightning » Tue. Dec. 26, 2017 11:54 pm

I've never ever seen clinkers form due to any degree of secondary air. Too much primary air with coal that's clinker prone, then yes.

A coworker with a Hotblast 1602 didn't know better and thought he should add on a combustion blower to the ash door. Well this wasn't any ordinary combustion blower. This thing had more force than a hair dryer. When I went to his house to help him I found the neatest looking clinkers I've ever seen. Fist sized and bigger, spiky pointy looking things that appeared crystallized with globs of metallic looking material inside. It was some kind of miracle that it didn't pressurize the fire box. Yeah, we aced the blower, draft gauge showed -.23 once the kindling was lit without it lol. No more clinkers.

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