How Many Types of Anthracite Is There?
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LsFarm
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Well, I'm not exactly sure what you are asking, but I'll give it a try:
There really is only one type of anthracite, unlike Bituminous which have high and low volitile content, low and high ash and various different sizes. The differences in Bituminous are quite significant and show as soon as you start burning the different coals.
Any of the slightly different anthracite coals are hard to tell apart untill you have burnt quite a bit of the coal, I'd say at least several hundred pounds so you can see the different ash/ash content.
Anthracite has several different sources, deep mines and shallow strip mines, The deep mines tend to have better coal, but that is not something hard and fast. There are a lot of different mines.
There is 'red ash' and 'white ash' anthracite, the red ash has more iron content in the ash.
Some anthracite is low ash, about 8% or so, most is around 12% ash, if I remember correctly.
Like I said above, it's pretty hard to tell one anthracite coal from another, unless it is really poor quality strip-mine coal with lots of rock and shale in it, leaving lots of this unburnable stuff in the ash.
Hope this is the info you were looking for. Greg L
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There really is only one type of anthracite, unlike Bituminous which have high and low volitile content, low and high ash and various different sizes. The differences in Bituminous are quite significant and show as soon as you start burning the different coals.
Any of the slightly different anthracite coals are hard to tell apart untill you have burnt quite a bit of the coal, I'd say at least several hundred pounds so you can see the different ash/ash content.
Anthracite has several different sources, deep mines and shallow strip mines, The deep mines tend to have better coal, but that is not something hard and fast. There are a lot of different mines.
There is 'red ash' and 'white ash' anthracite, the red ash has more iron content in the ash.
Some anthracite is low ash, about 8% or so, most is around 12% ash, if I remember correctly.
Like I said above, it's pretty hard to tell one anthracite coal from another, unless it is really poor quality strip-mine coal with lots of rock and shale in it, leaving lots of this unburnable stuff in the ash.
Hope this is the info you were looking for. Greg L
.
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gaw
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Sometimes you may see a name associated with anthracite. In some cases this is referring to the vein it was mined from. Sometimes it could be a reference to the mine or mining company. Other than that you have the "red ash" and "white ash". Breakers usually buy from several mines and therefore several veins of coal. Processed anthracite will be a mixture of several mines coal.