Looking for Pictures of Coal Stoker Feed Systems

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ntp71
Member
Posts: 277
Joined: Sat. May. 17, 2008 9:14 am
Location: Nanticoke, PA
Hand Fed Coal Boiler: Reading Foundry Water Heater
Hot Air Coal Stoker Stove: Old Mill Mini Stoker with Keystoker Feed System
Hand Fed Coal Stove: Gibraltar SCR
Baseburners & Antiques: Caloric UltraMatic Coal-Gas Range
Coal Size/Type: Chestnut

Post by ntp71 » Sun. Feb. 16, 2014 10:17 am

Hello All,

I am interested in learning about the different types of feed systems that are on different stoker systems. Pictures would be a big help. As some of you know I use an Old Mill Mini Stoker with a very early stoker feed system using a paddle. There has been numerous improvement to this design over the years and I wish to see exactly what some of these look like if you have pictures available. This is mostly for me to learn about different feed systems. I am very curious about the different styles and opinions of why you might think one is better than the other.

Here is a bottom pic of mine
feed.jpg

Old Mill Feed Mechanism

.JPG | 142.7KB | feed.jpg
Also, here is a link to the Patent for this feed mechanism.

http://www.google.com/patents/US4665840

Thanks

Neal

 
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StokerDon
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Joined: Mon. Nov. 11, 2013 11:17 am
Location: PA, Southern York County!
Stoker Coal Boiler: Gentleman Janitor GJ-5, Van Wert VA-600, Axeman Anderson130 X3.
Hand Fed Coal Furnace: Harman SF3500 reduced down to 3 grates connected to its own plenum
Coal Size/Type: Rice, Chestnut and whatever will fit through the door on the Harman
Other Heating: Noth'in but COAL! Well, Maybe a little tiny bit of wood

Post by StokerDon » Sun. Feb. 16, 2014 11:05 am

Neal,

I don't know if your interested in the bigger and older ones, but here is the Yellow Flame feed system.
YFstokerMechResto4 007.JPG

Yellow Flame feeder

.JPG | 117.9KB | YFstokerMechResto4 007.JPG
Big blower driving a 2 RPM gearbox. The gearbox moves the long lever back and forth. The lever turns a rod that pushes and pulls a 1" thick cast iron plate up and down the ramp. The grates sit in this cast iron plate.
YFstokerMechResto4 005.JPG

Yellow Flame feeder

.JPG | 126.4KB | YFstokerMechResto4 005.JPG
YFstokerMechResto4 006.JPG

Yellow Flame feeder

.JPG | 126.9KB | YFstokerMechResto4 006.JPG
The coal is fed onto the grate here. The movement of the grate working against the weight of the coal in the hopper on the up stroke forces the coal and ash down the grate. On the down stroke, it lays more coal on the grate.
YFstokerMechResto4 010.JPG

Yellow Flame feeder

.JPG | 148.2KB | YFstokerMechResto4 010.JPG
This system allows the unit to feed and burn very fine coal, Barley size, up to Buckwheat size. The Losch Stoker Boiler uses a similer moving grate feeding system.

-Don


 
User avatar
ntp71
Member
Posts: 277
Joined: Sat. May. 17, 2008 9:14 am
Location: Nanticoke, PA
Hand Fed Coal Boiler: Reading Foundry Water Heater
Hot Air Coal Stoker Stove: Old Mill Mini Stoker with Keystoker Feed System
Hand Fed Coal Stove: Gibraltar SCR
Baseburners & Antiques: Caloric UltraMatic Coal-Gas Range
Coal Size/Type: Chestnut

Post by ntp71 » Sun. Feb. 16, 2014 11:10 am

StokerDon wrote:Neal,

I don't know if your interested in the bigger and older ones, but here is the Yellow Flame feed system
Thanks Don. I am interested in any type of feed system.

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