Yet Another Ash Related Question

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lsayre
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Post Wed. Nov. 14, 2012 9:08 pm

Continuing my coal education: My first assumption (OK, guess) is that it would seem that the lower the ash content by weight and volume the better the anthracite, but is this actually consistently (or ever) the case, or is there any sound reason why anthracite coal with more ash might out-perform anthracite with less ash?

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freetown fred
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Post Wed. Nov. 14, 2012 9:31 pm

A sound reason??? nah!-- ;) Larry, I'm curious--list some things from Mother Earth that are absolute.

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lsayre
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Post Wed. Nov. 14, 2012 9:36 pm

freetown fred wrote:A sound reason??? nah!-- ;) Larry, I'm curious--list some things from Mother Earth that are absolute.
Death, absolute zero, a perfect vacuum, and Obama as President. :o :(

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Post Wed. Nov. 14, 2012 9:44 pm

Nice :clap: toothy

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Rob R.
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Post Thu. Nov. 15, 2012 9:12 am

Too much of a good thing...can be a bad thing.

It doesn't matter how many BTU's are in a pound of coal if it clinkers excessively, or if it is so dense that doesn't maintain a fire without air being forced through it. That is why so many coal companies blend coal from different sources, to produce a more uniform and predictable product.

Also, it doesn't matter how great the coal itself is if it hasn't been prepared properly. The coal needs to be the proper size, and free of foreign material.

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lsayre
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Post Thu. Nov. 15, 2012 6:32 pm

Is that why Lehigh is blending coal from four different mine locations?

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Post Thu. Nov. 15, 2012 7:00 pm

Also, it doesn't matter how great the coal itself is if it hasn't been prepared properly. The coal needs to be the proper size, and free of foreign material
Ok Rob you have my interest on this. Rice coal that is proper size will have better performance then rice coal that has excessive fines? Referring to a stoker stove.

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Post Thu. Nov. 15, 2012 8:59 pm

lsayre wrote:Is that why Lehigh is blending coal from four different mine locations?
Lehigh does not blend coal, They have the LARGEST vein of coal in the world and a small amount of land comparitively, blending at Lehigh is only bank coal with vein coal.

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lsayre
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Post Thu. Nov. 15, 2012 9:03 pm

Oops, I intended to say that Lehigh blended from 4 veins (not 4 mines). I believe it was Rob who was told this when he contacted them recently.

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Post Thu. Nov. 15, 2012 9:07 pm

Well, that sounds more logical, it is truely only one vein though, they are just mining it in different areas as per DEP requirements, but as most do they also blend some bank coal

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lsayre
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Post Thu. Nov. 15, 2012 9:08 pm

mattcoalburner wrote:Well, that sounds more logical, it is truely only one vein though, they are just mining it in different areas as per DEP requirements, but as most do they also blend some bank coal
Thanks mattcoalburner! Do you have an opinion of Lehigh coal?

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Post Thu. Nov. 15, 2012 9:20 pm

Right off their website:
The coal is mined from the Mammoth, Forty-Foot, Primrose and Orchard seams on the approximately 8,000-acre Lehigh Anthracite mine

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Post Thu. Nov. 15, 2012 9:21 pm

I do, I only deal with them and Gale Mining company, when Lehigh is just taking coal from the Mammoth vein it is probably damn near the best coal in the entire world. They were just taken over in the past few years and their is alot of bank coal being blended. It is still great coal and probably some of the best you can buy, but lately im seeing more red ash then I like and more clinkers. Red ash coal is not as good as white ash because it is closer to the surface and contains more Iron and less carbon. Also, when coal is exposed to the sun and elements through many years it loses some of its gasses, and that is the case with bank coal. some of it has been sitting on the banks in our area since the mid to late 1800's. But as I say their coal is still some of the best in the industry.

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Post Thu. Nov. 15, 2012 9:23 pm

Rob R. wrote:Right off their website:
The coal is mined from the Mammoth, Forty-Foot, Primrose and Orchard seams on the approximately 8,000-acre Lehigh Anthracite mine
I understand this Rob, they are all seams within the Mammoth vein I live very close, buy about 900 tons of their coal a year.

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lsayre
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Post Thu. Nov. 15, 2012 9:26 pm

Not having grown up around coal, what is bank coal?

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