Coal Quality This Fall

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Short Bus
Member
Posts: 510
Joined: Sun. Jan. 10, 2010 12:22 am
Location: Cantwell Alaska
Stoker Coal Boiler: Kewanee boiler with Anchor stoker
Coal Size/Type: Chestnut / Sub-bituminous C
Other Heating: Propane wall furnace back up only

Post by Short Bus » Sun. Nov. 18, 2012 5:14 pm

I've been modifing my stoker system blower and trying to tune up my combustion, it has started to burn real good and hot, making a very desirable clinker for my situation.
I was proud of my solutions with the help of this forum. :)
Yesterday while at work I heard a story about a converstion by a power plant operator and a coal miner. The story went like this, "the coal you are supplying is burning great", " yes we are behind on removing overburden from the low grade coal that we mix with the high grade, to achive the 7,250 btu/lb, so our coal is currently around 8,000 btu/lb".
Not sure of the facts but my burner is working great, anyone else experiancing this?


 
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Berlin
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Posts: 1890
Joined: Thu. Feb. 09, 2006 1:25 pm
Location: Wyoming County NY

Post by Berlin » Sun. Nov. 18, 2012 6:23 pm

I would go ahead and stock up! It's not uncommon for mining companies to blend two seams of coal when they're stripping it already - they will typically blend them to get a decent AND economical product.

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