Coal in Fines

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bubba
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Post Fri. Mar. 28, 2014 7:52 pm

efm 520 rice coal. I am getting unburned coal not fines when I pull lever for fines. what is probable cause?

Pacowy
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Stoker Coal Boiler: H.B. Smith 350 Mills boiler/EFM 85R stoker
Coal Size/Type: Buckwheat/anthracite
Location: Dalton, MA

Post Fri. Mar. 28, 2014 7:55 pm

Broken burn grate?

Mike

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Rob R.
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Stoker Coal Boiler: EFM DF520
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Location: Chazy, NY

Post Fri. Mar. 28, 2014 7:58 pm

Yep...broken grate is likely cause. Could also be a totally shot auger pipe, but either way you need to shut it down to diagnose it.

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bubba
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Post Fri. Mar. 28, 2014 8:03 pm

.
will running it this way cause any trouble? fire is fine but fine holder fills up. thanks for all your help

fifthg
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Coal Size/Type: Egg,stove,nut,pea,buck,and rice -Gale Mining Co Anthracite
Location: southern anthracite field,Schuylkill County,Pa.

Post Fri. Mar. 28, 2014 10:20 pm

Hole in pot,not hole in grate,would allow coal,not fines,into air chamber

Pacowy
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Posts: 2812
Joined: Tue. Sep. 04, 2007 10:14 pm
Stoker Coal Boiler: H.B. Smith 350 Mills boiler/EFM 85R stoker
Coal Size/Type: Buckwheat/anthracite
Location: Dalton, MA

Post Fri. Mar. 28, 2014 10:46 pm

fifthg wrote:Hole in pot,not hole in grate,would allow coal,not fines,into air chamber
Not really following that.

Mike

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fifthg
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Posts: 350
Joined: Mon. Aug. 03, 2009 10:11 am
Stoker Coal Boiler: EFM 520
Hand Fed Coal Stove: warm morning # 500
Baseburners & Antiques: Peninsular Western Hot Blast No.44K and Reading Foundry & Supply Co.
Coal Size/Type: Egg,stove,nut,pea,buck,and rice -Gale Mining Co Anthracite
Location: southern anthracite field,Schuylkill County,Pa.

Post Sat. Mar. 29, 2014 8:38 am

late night post,sorry.Broken grate most likely the problem.However,I had full sized coal in my fines chamber due to a hole worn in my pot just inside of where tube ends where coal is turned upward into the burn area and grates,puzzling at first,when there were no holes in grates.Hole had worn to about the size of a quarter,I was able to have it patched,but will need to replace pot for next season.

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stoker-man
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Location: Lehigh Valley, PA

Post Sat. Mar. 29, 2014 12:18 pm

Yeah. Also check for a hole in pipe where the auger might have worn through, inside the pot area.

daluds
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Post Fri. Apr. 11, 2014 9:42 pm

I had coal which was not burnt in bin, and it turned out to be hole in upper pipe which was rusted out. It will just get bigger if you let it go. Stainless pipe fixed that problem.

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