Smoke in bin

Smoke in bin

PostBy: daluds On: Tue Nov 13, 2012 9:35 pm

I'm getting a lot of smoke in the bin, and this is new. Any idea how this can happen? I'm going to shut it down tonight and take it apart. I noticed the pot is not burning evenly so maybe something is stuck in the auger?

Dave
daluds
 
Stoker Coal Boiler: EFM DF520
Coal Size/Type: Rice
Stove/Furnace Make: EMF
Stove/Furnace Model: DF-520

Re: Smoke in bin

PostBy: Mark (PA) On: Tue Nov 13, 2012 9:43 pm

would seem to be more of a draft issue than something stuck in the auger correct?

If the smoke can't exit up the flue it'll choose the next path of least resistance...

maybe something stuck in the flue, Are the tubes clean in the boiler? Might want to check your baro damper if using one for motion.
Mark (PA)
 
Stove/Furnace Make: 1953 EFM SF-520 High Boy
Stove/Furnace Model: Fitzgibbon Boiler

Re: Smoke in bin

PostBy: daluds On: Wed Nov 14, 2012 12:50 am

I checked the draft, and its -.04 warm. I'll have to go check the flue tomorrow. Thanks!
daluds
 
Stoker Coal Boiler: EFM DF520
Coal Size/Type: Rice
Stove/Furnace Make: EMF
Stove/Furnace Model: DF-520

Re: Smoke in bin

PostBy: stoker-man On: Wed Nov 14, 2012 6:26 am

If you are burning rice and you have the full length pipe, I would look at the stoker air setting and then try to determine if your feed pipe is empty/partially empty because of a blockage at the end of the pipe.
stoker-man
 
Hand Fed Coal Boiler: 1981 efm wcb-24 in use 365 days a year
Coal Size/Type: Anthracite/Chestnut
Other Heating: Hearthstone wood stove

Re: Smoke in bin

PostBy: Rob R. On: Wed Nov 14, 2012 6:54 am

Sounds like the coal may have bridged, or isn't feeding through the tube correctly. Also make sure that you don't have bunch of holes plugged in the burner plates, and that the holes in the burner pipe are open.
Rob R.
 
Stoker Coal Boiler: EFM DF520
Coal Size/Type: Rice/buck
Other Heating: Dad's 1953 EFM Highboy

Re: Smoke in bin

PostBy: daluds On: Wed Nov 14, 2012 8:28 pm

I took everything apart last night. I didn't see anything in the coal I dumped out of the tubes, but there wasn't much coal in the tube. I have too much coal in my bin to empty it, but once I burn off more I will check for obstructions in the bin. I found 8-9 large golf ball size chunks of coal along with some big pieces of rusted metal pieces last time I emptied the bin. I need to filter the coal when I dump the bags. I don't want to empty the bin since the coal is all wet, and it stains my floors, sneakers, jeans, shirts, etc..

Since I had it all apart last night, I straightened the upper auger a bit and I ground off some of the metal in the burner inlet so the upper pipe fit properly. I also sanded a bit of the pipe so it inserted without too much force. I unclogged some of the holes in the burner plates due to the wet coal. I also increase the timer on time, but left the coal feed rate at 4 with 4 air setting. I changed the damper to increase the draft too. It seems to be good now, but will check the chimney this weekend.

I always panic when the heat stops working! :-) It looks like Sandy came through my work shop where the EFM is located. I have coal and tools all over.

I set the metal gear oil holder aside on the floor when I took the upper auger out, and put it in against the wall so I would step on it. Well, I set my broom on top if it without realizing it, then started to sweep up. Spread gear oil all over the floor. Stuff is thick.

Thanks for your help!

Dave
daluds
 
Stoker Coal Boiler: EFM DF520
Coal Size/Type: Rice
Stove/Furnace Make: EMF
Stove/Furnace Model: DF-520

Re: Smoke in bin

PostBy: Rob R. On: Sun Nov 18, 2012 7:30 am

daluds wrote:I took everything apart last night. I didn't see anything in the coal I dumped out of the tubes, but there wasn't much coal in the tube. I have too much coal in my bin to empty it, but once I burn off more I will check for obstructions in the bin. I found 8-9 large golf ball size chunks of coal along with some big pieces of rusted metal pieces last time I emptied the bin. I need to filter the coal when I dump the bags. I don't want to empty the bin since the coal is all wet, and it stains my floors, sneakers, jeans, shirts, etc..

Since I had it all apart last night, I straightened the upper auger a bit and I ground off some of the metal in the burner inlet so the upper pipe fit properly. I also sanded a bit of the pipe so it inserted without too much force. I unclogged some of the holes in the burner plates due to the wet coal. I also increase the timer on time, but left the coal feed rate at 4 with 4 air setting. I changed the damper to increase the draft too. It seems to be good now, but will check the chimney this weekend.

I always panic when the heat stops working! :-) It looks like Sandy came through my work shop where the EFM is located. I have coal and tools all over.

I set the metal gear oil holder aside on the floor when I took the upper auger out, and put it in against the wall so I would step on it. Well, I set my broom on top if it without realizing it, then started to sweep up. Spread gear oil all over the floor. Stuff is thick.

Thanks for your help!

Dave


Lots of things going on here. The oversized pieces of coal probably caused a feeding problem and allowed combustion air to go back down the tube. Plugged holes in the burner plates will make that issue worse, as the air can't go where it is supposed to. Your coal needs to be screened, and you need to somehow get it drained.

Straightened the auger??!! If the auger was bent, it should be replaced...period. A bent auger will ruin the bushings, and can cause strange feeding problems.
Rob R.
 
Stoker Coal Boiler: EFM DF520
Coal Size/Type: Rice/buck
Other Heating: Dad's 1953 EFM Highboy

Re: Smoke in bin

PostBy: daluds On: Sun Nov 18, 2012 12:30 pm

Rob,

Thanks for the reply. I was hoping not to have to take this apart again, but still having problems with it. The wet coal creates a mess. Here is what I'll work on.

1) Empty the coal bin and check for coal chucks.
2) Drill more drain holes in coal bin.
3) Buy replacement upper auger
4) Check plate positions in burner.

I replaced the bushing, and believe it was worn out due to slight bend in the upper auger. It was damaged when I received the boiler. The dealer straigthened the auger in his work shop.

Thanks,

Dave
daluds
 
Stoker Coal Boiler: EFM DF520
Coal Size/Type: Rice
Stove/Furnace Make: EMF
Stove/Furnace Model: DF-520

Re: Smoke in bin

PostBy: grobinson2 On: Mon Dec 03, 2012 6:51 am

Hummmm... I am having the same issue with a little bit of smoke coming out the auger tube and up through the coal bin. I oil my coal so I thought it might be some of the oil coming out. I am using the upper tube and of course a full bin auger. Coal is not wet but is oiled. UAE Rice. I got a lot of smoke when I was burning 50/50 prune pits and coal but figured it was because the pits did not pack as tight in the tube. The auger tube is not warm/hot so I know I do not have an auger fire going on.

Glenn
grobinson2
 
Stoker Coal Boiler: (2) EFM 520's
Hand Fed Coal Stove: Coalbrookdale Darby, Hitzer 354 Custom
Coal Size/Type: Rice and Nut
Other Heating: Vermont Castings Defiant 1927 2in1

Re: Smoke in bin

PostBy: Rob R. On: Mon Dec 03, 2012 6:56 am

I have run oiled coal in mine with no smoke issues, I think your problem is the prune pits. These units run so nice with anthracite...why mess with a good thing?

:idea: Sell the prune pits to someone with a pellet stove, and buy more coal with the proceeds.
Rob R.
 
Stoker Coal Boiler: EFM DF520
Coal Size/Type: Rice/buck
Other Heating: Dad's 1953 EFM Highboy

Re: Smoke in bin

PostBy: grobinson2 On: Mon Dec 03, 2012 7:05 am

Eh... Cheaper ect. Anyway I also get smoke with my coal as well. Only faint whisps but it is still there when I burn just coal.

Thanks again,
Glenn
grobinson2
 
Stoker Coal Boiler: (2) EFM 520's
Hand Fed Coal Stove: Coalbrookdale Darby, Hitzer 354 Custom
Coal Size/Type: Rice and Nut
Other Heating: Vermont Castings Defiant 1927 2in1

Re: Smoke in bin

PostBy: freetown fred On: Mon Dec 03, 2012 7:06 am

Prune pits??? toothy Why not Peach Pits--I mean, you do live in Peach Bottom. :bang: :clap: toothy
freetown fred
 
Hand Fed Coal Stove: HITZER 50-93
Coal Size/Type: BLASCHAK Nut/Stove mix

Re: Smoke in bin

PostBy: Rob R. On: Mon Dec 03, 2012 7:13 am

grobinson2 wrote:Eh... Cheaper ect. Anyway I also get smoke with my coal as well. Only faint whisps but it is still there when I burn just coal.

Thanks again,
Glenn


That is not right. Are you sure your pot auger was put in with the holes facing up? Having those holes properly positioned in the pot is critical to avoiding fumes/smoke in the auger pipe. Have you checked the over-fire draft?
Rob R.
 
Stoker Coal Boiler: EFM DF520
Coal Size/Type: Rice/buck
Other Heating: Dad's 1953 EFM Highboy

Re: Smoke in bin

PostBy: grobinson2 On: Mon Dec 03, 2012 7:21 am

Peach pits sounds like a great idea... I am sure they will feed in that 2" auger very much like nut coal. On the plus side, no smoke.... Or fire. :). As for how the auger is positioned I will have to check on Wednesday when I have off.

Thanks,
Glenn
grobinson2
 
Stoker Coal Boiler: (2) EFM 520's
Hand Fed Coal Stove: Coalbrookdale Darby, Hitzer 354 Custom
Coal Size/Type: Rice and Nut
Other Heating: Vermont Castings Defiant 1927 2in1

Re: Smoke in bin

PostBy: stoker-man On: Tue Dec 04, 2012 6:44 am

auger pipe
stoker-man
 
Hand Fed Coal Boiler: 1981 efm wcb-24 in use 365 days a year
Coal Size/Type: Anthracite/Chestnut
Other Heating: Hearthstone wood stove