Coal Bin Design for an EFM

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coalkirk
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Posts: 4712
Joined: Wed. May. 17, 2006 8:12 pm
Stoker Coal Boiler: 1981 EFM DF520
Hand Fed Coal Stove: Jotul 507 on standby
Coal Size/Type: Lehigh anthracite/rice coal
Location: Forest Hill MD

Post Mon. Oct. 30, 2017 2:09 pm

Almost done. I’m going to paint the inside with a high gloss enamel to seal the OSB and to make it more slippery. Ready for coal soon. Need to make a frame for the guilitine boards.
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coalkirk
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Posts: 4712
Joined: Wed. May. 17, 2006 8:12 pm
Stoker Coal Boiler: 1981 EFM DF520
Hand Fed Coal Stove: Jotul 507 on standby
Coal Size/Type: Lehigh anthracite/rice coal
Location: Forest Hill MD

Post Sun. Nov. 05, 2017 7:57 pm

All done. Just need to pretty up some wiring and then ready for 5 tons of rice.
cb9.JPG

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Lightning
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Hand Fed Coal Furnace: Overmodified/Bored out Clayton 1537
Coal Size/Type: Anthracite/Awesome Size
Location: Olean, NY

Post Sun. Nov. 05, 2017 8:42 pm

Nice work man! That should do just what you want it to.

Qtown1835
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Posts: 223
Joined: Sat. Nov. 08, 2014 11:47 am
Stoker Coal Boiler: Keystoker '81 KA4 (online 1/16/17)
Coal Size/Type: Lehigh Rice
Other Heating: EFM SPK600
Location: Quakertown, PA

Post Mon. Nov. 06, 2017 2:33 pm

Bin looks great. Looking at the size of it, im not sure it will hold 5TN if you are planning on sending the coal through the window? Im thinking like 2.75 or 3tn to the bottom of the windows.
1/2x(A+B)xHxL

1/2x(1.33'+6.66')x3.33'x8'=106cuft At about 52#/cuft thats only 2.75tn.


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coalkirk
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Posts: 4712
Joined: Wed. May. 17, 2006 8:12 pm
Stoker Coal Boiler: 1981 EFM DF520
Hand Fed Coal Stove: Jotul 507 on standby
Coal Size/Type: Lehigh anthracite/rice coal
Location: Forest Hill MD

Post Mon. Nov. 06, 2017 6:21 pm

I've got a secret weapon that was not visible in the other pics. Look above the window at the big glob of expanding foam. In the center of that is a 4" pvc pipe with a rag stuffed in it. After I've loaded as much as possible through the window it gets closed and the rest comes in through that pipe. I can fill the bin to 7'. I've got a Rube Goldberg setup using a 5 gallon bucket with a toilet flange on the bottom and the coal is shot through the pipe with air flow from a leak blower. I'll see if I can find a pic of that rig.
cb10.JPG
rube.jpg
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Well there it is. I don't know why the pic is so small. With the blower running it shoots that 5 gallon bucket into the bin very quickly.

Qtown1835
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Posts: 223
Joined: Sat. Nov. 08, 2014 11:47 am
Stoker Coal Boiler: Keystoker '81 KA4 (online 1/16/17)
Coal Size/Type: Lehigh Rice
Other Heating: EFM SPK600
Location: Quakertown, PA

Post Mon. Nov. 06, 2017 6:54 pm

Cool. Do you unload bucket by bucket or will you have a high lift truck deposit into the bucket?

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Rob R.
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Stoker Coal Boiler: EFM DF520
Hand Fed Coal Stove: Hitzer 50-93
Coal Size/Type: Lehigh Rice
Other Heating: Dad's 1953 EFM Highboy
Location: Chazy, NY

Post Mon. Nov. 06, 2017 6:58 pm

Does that blow coal dust all over the place?

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coalkirk
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Posts: 4712
Joined: Wed. May. 17, 2006 8:12 pm
Stoker Coal Boiler: 1981 EFM DF520
Hand Fed Coal Stove: Jotul 507 on standby
Coal Size/Type: Lehigh anthracite/rice coal
Location: Forest Hill MD

Post Mon. Nov. 06, 2017 8:17 pm

Qtown1835 wrote:
Mon. Nov. 06, 2017 6:54 pm
Cool. Do you unload bucket by bucket or will you have a high lift truck deposit into the bucket?
Unfortunately no high lift. It's bucket by bucket.


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coalkirk
Member
Posts: 4712
Joined: Wed. May. 17, 2006 8:12 pm
Stoker Coal Boiler: 1981 EFM DF520
Hand Fed Coal Stove: Jotul 507 on standby
Coal Size/Type: Lehigh anthracite/rice coal
Location: Forest Hill MD

Post Mon. Nov. 06, 2017 8:18 pm

Rob R. wrote:
Mon. Nov. 06, 2017 6:58 pm
Does that blow coal dust all over the place?
No the coal is wet when I load it so no dust.

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coalkirk
Member
Posts: 4712
Joined: Wed. May. 17, 2006 8:12 pm
Stoker Coal Boiler: 1981 EFM DF520
Hand Fed Coal Stove: Jotul 507 on standby
Coal Size/Type: Lehigh anthracite/rice coal
Location: Forest Hill MD

Post Thu. Nov. 09, 2017 8:24 am

Here's how much room 1 ton takes. Not quite up to where the bin sides are vertical. I had calculated it would hold 1.5 tons to the point where it goes vertical so I think judging by the appearance it should have no trouble holding that and more.
cb11.JPG
2017 coal haul.JPG
This is how I moved the first ton, 14-5 gallon buckets at a time. So 58 buckets later is 1 ton. Now that I've taken some weight out of the trailer I may try to back the trailer up to the window and pipe for the next 3 tons. The ground is softer than I would prefer with the rain we had.

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StokerDon
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Stoker Coal Boiler: BairMatic BMC-500 with Van Wert VA400 Stoker, Gentleman Janitor GJ-671/EFM S-15 stoker, Van Wert VA-600
Hand Fed Coal Furnace: Harman SF3500
Coal Size/Type: Rice and Chestnut
Other Heating: Noth'in but COAL! Well, Maybe a little tiny bit of wood
Location: PA, Southern York County!

Post Fri. Nov. 10, 2017 10:21 am

I hope your gonna fire that thing up today, it's real cold and windy!

Nice job on the bin, I would like to come over and have a look at it and check out how the Ol' EFM is running.

-Don

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coalkirk
Member
Posts: 4712
Joined: Wed. May. 17, 2006 8:12 pm
Stoker Coal Boiler: 1981 EFM DF520
Hand Fed Coal Stove: Jotul 507 on standby
Coal Size/Type: Lehigh anthracite/rice coal
Location: Forest Hill MD

Post Sun. Nov. 12, 2017 6:34 pm

Well I have renewed faith in my math ability. I had calculated the bin would hold 5 tons. Here it is with a full 4 tons and plenty of space left over to easily accommodate a 5th ton. The bin is 7'x7' so once the coal is above the area with the sloped sides, every 1' of coal depth is approximately 49 cubic feet or 1.25 tons.
cb12.JPG

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