EFM Auger Question

Stoker Coal Boilers automatically feed the coal and have controls and pumps just like any conventions boiler. They are intended to be used as a primary heat and often have domestic hot water coils as an added bonus. They can be set up independently or in dual sytem with your existing oil/gas boiler. They can accommodate both hot water base board or steam plumbing.
lincolnmania
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Post Fri. Jan. 09, 2009 5:07 pm

how much auger should be sticking into my 55 gallon barrel?
i'm letting the barrel run low today so I can check how much is sticking thru......i'm getting alot of fines at the bottom of the barrel and I keep breaking shear pins.....ran out of spare pins the other day.....i'm using cheaply made chineese cotter pins

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coal berner
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Stoker Coal Boiler: 1986 Electric Furnace Man 520 DF
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Post Fri. Jan. 09, 2009 5:19 pm

lincolnmania wrote:how much auger should be sticking into my 55 gallon barrel?
i'm letting the barrel run low today so I can check how much is sticking thru......i'm getting alot of fines at the bottom of the barrel and I keep breaking shear pins.....ran out of spare pins the other day.....i'm using cheaply made chineese cotter pins

Just enough for the Auger tube not to fall out of the hole 2 to 3 " into the drum The auger itself should be 4 " to 6"
sticking out of the tube Use copper wire like 14ga instead of steel cotter Pins until you get shear pins Your buck is over sized you need to put a screen on the top of the drum to keep the bigger pieces out 1/2 "mesh for rice and 9/16 mesh for buck Take a ride down to the shop for Pins 25 cents a piece also why you are there Pay him for the two ash pans
J.C.

Heating house & water with a 1986 electric furnace man DF520 using buckwheat Anthracite coal

lincolnmania
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Hot Air Coal Stoker Furnace: efm af-150 1982
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Post Fri. Jan. 09, 2009 5:26 pm

crap forgot about the pans.....as soon as I get some bucks i'll stop down.......if i'm breaking the efm shear pins wont the copper wire snap instantly?
superior buck is oversized? I havent been going anywhere else since you turned me on to it.......burning superior in the kenmore also now.......rice is a mess and they don't always have it......but if I have to i'll switch......i like the heat that superior puts out

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billw
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Post Fri. Jan. 09, 2009 5:32 pm

Both of you guys are burning buck in your EFM's. What did you have to do besides increase air to make it work?

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coal berner
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Post Fri. Jan. 09, 2009 5:42 pm

billw wrote:Both of you guys are burning buck in your EFM's. What did you have to do besides increase air to make it work?

Nothing but Air and a screen over the top of the drum to keep the bigger pieces out
J.C.

Heating house & water with a 1986 electric furnace man DF520 using buckwheat Anthracite coal

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billw
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Post Fri. Jan. 09, 2009 5:52 pm

I'm feeding right out of my bin so I guess buck isn't an option for me, no way to screen it.

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coal berner
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Post Fri. Jan. 09, 2009 5:53 pm

lincolnmania wrote:crap forgot about the pans.....as soon as I get some bucks i'll stop down.......if i'm breaking the efm shear pins wont the copper wire snap instantly?
superior buck is oversized? I havent been going anywhere else since you turned me on to it.......burning superior in the kenmore also now.......rice is a mess and they don't always have it......but if I have to i'll switch......i like the heat that superior puts out

Yes they will break that is what you want to happend steel will not break as easy and you can & will break the Auger
all Buck # 1 will have big pieces in it 9/16 x 5/16 Rice is 5/16 x 3/16 the auger tube is 2" the Auger is 1.5" that leaves
a 1/2 " between the Tube and Auger if you want to burn buck then stick a screen over the drum to stop the bigger pieces
from going in and breaking the Pins or get Rice / #2 buck anything over 9/16 will be Pea size 13/16 x 9/16 to big
J.C.

Heating house & water with a 1986 electric furnace man DF520 using buckwheat Anthracite coal

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coal berner
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Post Fri. Jan. 09, 2009 5:56 pm

billw wrote:I'm feeding right out of my bin so I guess buck isn't an option for me, no way to screen it.

wait in 3 or 4 Years when you go threw the 12 tons that is in there and switch over then :lol: use #2 buck no screen needed
J.C.

Heating house & water with a 1986 electric furnace man DF520 using buckwheat Anthracite coal

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stoker-man
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Post Fri. Jan. 09, 2009 10:35 pm

efm recommends about 3 to 4 inches of worm outside the pipe. More than that and you'll start grinding coal.
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lincolnmania
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Post Sat. Jan. 10, 2009 12:29 am

where is this #2 buck chute jc? that stuff sounds real nice!

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Freddy
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Post Sat. Jan. 10, 2009 4:51 am

Just curious..... what's the advantage to burning buck? It seems extra work to screen it all, there must be an extra benefit.
Orrington, Maine
Fred

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cArNaGe
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Post Sat. Jan. 10, 2009 6:56 am

Bigger the coal size. The more heat.

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Pa Dealer
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Post Sat. Jan. 10, 2009 9:48 am

stoker-man wrote:efm recommends about 3 to 4 inches of worm outside the pipe. More than that and you'll start grinding coal.


Thats correct,any more than that and the worm will wear out faster,thus grinding coal,but not enough and you will have feed problems.

RY

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coal berner
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Stoker Coal Boiler: 1986 Electric Furnace Man 520 DF
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Stove/Furnace Model: DF520
Location: Pottsville PA. Schuylkill County PA. The Hart Of Anthracite Coal Country.

Post Sat. Jan. 10, 2009 3:27 pm

Pa Dealer wrote:
stoker-man wrote:efm recommends about 3 to 4 inches of worm outside the pipe. More than that and you'll start grinding coal.


Thats correct,any more than that and the worm will wear out faster,thus grinding coal,but not enough and you will have feed problems.

RY

At the end of the bin auger there should be 1/34" to 2" or more depending where you put the hole in the drum of clearance from the bottom of drum or bin now how is the coal going to wear the S.S. Auger flights Anthracite is not that hard it will break up into pieces unless the coal; has alot of bone /rock in it The main Place that I seen Auger flights wear is on the Pot auger at the first one or two Flights on the bushing end That is because the Auger & pot Bushings wear out then the flights can rub on the cast iron pot wearing on the flights . That will also make the Mid & Bin Auger off center and then they will rub agianst the Inside of the Auger Tube . I have 6" of auger sticking out of my tube and I have 0
Problems with feeding or fines I get a baby Jar lid full on fines every other day and I am Running Buck #1 Because you can get it all the time and it is cleaner then Rice And more heatout burning less coal .
Last edited by coal berner on Sat. Jan. 10, 2009 3:34 pm, edited 1 time in total.
J.C.

Heating house & water with a 1986 electric furnace man DF520 using buckwheat Anthracite coal

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coal berner
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Posts: 3591
Joined: Tue. Jan. 09, 2007 12:44 am
Stoker Coal Boiler: 1986 Electric Furnace Man 520 DF
Stove/Furnace Make: Electric Furnace Man
Stove/Furnace Model: DF520
Location: Pottsville PA. Schuylkill County PA. The Hart Of Anthracite Coal Country.

Post Sat. Jan. 10, 2009 3:32 pm

lincolnmania wrote:where is this #2 buck chute jc? that stuff sounds real nice!

Same chute as Rice ;)
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J.C.

Heating house & water with a 1986 electric furnace man DF520 using buckwheat Anthracite coal

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