europachris wrote:That's what I've been wondering. The new rash of rice burning stokekr stoves seem to have been built to burn the 'waste' coal processed from the old culm banks. Once these culm banks have all been reprocessed for the rice coal, what's left?
Well I don't know where you got that idea but the rice, at least what I'm delivering, is from fresh mined coal. It's generated during the entire process, every time you break it rice or other sizes are produced from the mine right up until comes out the other end of the breaker.
When it gets to the breaker it has varying sizes from dust to pieces that can weigh hundreds of pounds. The first thing they do is separate anything nut or smaller which goes right on the conveyor. The larger pieces are crushed down to nut size (or whatever else is made such as rice) and join the coal that has already been sized. From there it goes off to be separated from the rock then finally off to be sized...
*** one thing to note is the place I'm getting my coal from doesn't make stove coal, if they did it would instead be initially sized for stove.