Jump to content
Sign in to follow this  
Conner Michaux

How do you make coke for a coal forge?. And what is the difference between coke and coal?

Recommended Posts

thats very similar, almost identical in fact to my forge, although mine is steel framed with brick lining. the pic i have is before the updates and upgrades, where i went from concrete to brick, lost the concrete "lid", and a couple of other fine tuning changes.

i have used purely charcoal in it before and have a couple of observations, 1, very very hot; 2, much cleaner burn, hardly any smoke; 3, it throws sparks like an unmanned flame thrower. 

i do use a small amount of charcoal to start the forge up every time, so i can try and get some pics of the sparks thrown from just that. 

20180525_114109[1].jpg

  • Like 1

Share this post


Link to post
Share on other sites

@Ross Vosloo no idea what the determining factor is, but I get a lot of variance in the amount of sparks between different batches of  charcoal 

Share this post


Link to post
Share on other sites

This is the only existing photo of my old one burning coal. I got it off my FB page.

Screenshot_2018-08-09-07-18-21.png

Share this post


Link to post
Share on other sites
2 hours ago, Gerhard said:

@Ross Vosloo no idea what the determining factor is, but I get a lot of variance in the amount of sparks between different batches of  charcoal 

I seem to remember some discussions on here about that, and it is at least partly related to the wood species used to make the charcoal. 

Share this post


Link to post
Share on other sites
45 minutes ago, Brian Dougherty said:

I seem to remember some discussions on here about that, and it is at least partly related to the wood species used to make the charcoal. 

 

2 hours ago, Gerhard said:

@Ross Vosloo no idea what the determining factor is, but I get a lot of variance in the amount of sparks between different batches of  charcoal 

i know most of our charcoal here is hard woods poached from mozambique. its a shame to know that even the "official" stuff is all from that neck of the woods

Share this post


Link to post
Share on other sites

Okay thanks guys. Im on vacation right now so i cant reaspond to many of these yet.

Share this post


Link to post
Share on other sites
Posted (edited)

Is it possible to use charcoal in a coal forge??

 

Because I have like 4 big bags of it that need to be used up.

Edited by Conner Michaux

Share this post


Link to post
Share on other sites

That particular forge will work even better with charcoal than it does with coal.

Share this post


Link to post
Share on other sites

Plus during the cool down you can add a griddle and some steak.

Share this post


Link to post
Share on other sites
4 hours ago, Charles du Preez said:

Plus during the cool down you can add a griddle and some steak.

That is probably the best idea I have ever heard... I grill a good steak. the trick is, that you cover the steak in dry rub then keep sprinkling it over the meat as it cooks.

 

Also, I just lit the forge today and it did amazing. Heats up metal really fast. I was using Charcoal and adding little handfuls of real coal every few minutes. Is the sticky melted coal stuff coke? I noticed massive chunks blocking up my way to put metal in (not really melted more like firm playdough)

Share this post


Link to post
Share on other sites
14 hours ago, Conner Michaux said:

Is it possible to use charcoal in a coal forge??

 

Because I have like 4 big bags of it that need to be used up.

 

 

14 hours ago, Alan Longmire said:

That particular forge will work even better with charcoal than it does with coal.

I'm also thinking of firing up today using only charcoal. My coal had been really dirty of late and it's just not letting me forge weld  gonna see if charcoal only fixes that. 

20180815_082007.jpg

Just cleaned it out ready for charcoal only 

Share this post


Link to post
Share on other sites

The gooey stuff is coal tar.  That is part of the process of getting coke, it shows you're halfway there.  When I start a forge with coal only, no leftover coke, it takes 20-30 minutes to get a usable fire.  Before it's coked up it is just a gummy mess that doesn't heat steel.  That's why I try to keep a good bit of coke set aside for the next fire.

Share this post


Link to post
Share on other sites

How do I figure out whats coke and whats clinker?

Share this post


Link to post
Share on other sites
5 hours ago, Ross Vosloo said:

 

20180815_082007.jpg

Just cleaned it out ready for charcoal only 

Not much to add except seeing this design and my struggles of last Saturday I feel like kicking myself........

Share this post


Link to post
Share on other sites
16 minutes ago, Conner Michaux said:

How do I figure out whats coke and whats clinker?

Clinker is dense, and often kind of glassy looking.  Coke is very light and porous.

Share this post


Link to post
Share on other sites

No use starting a new thread.....

I was on the farm with my cousin the past weekend, there used to be a school on the farm and they used coal in the hot water donkeys.

The stuff has been lying in the wind and weather from the 60's or 70's, I managed to gather about half a feed bags worth, which was about all I could carry!

Will it still be good?

Share this post


Link to post
Share on other sites

Yes indeed!  It's a rock, after all.  ;)

  • Thanks 1

Share this post


Link to post
Share on other sites
On 9/14/2018 at 1:10 PM, Alan Longmire said:

Yes indeed!  It's a rock, after all.  ;)

Well, dead trees that are now rock :)

on another note, thank you @Alan Longmire, your tip on burning your coal fire for 30min has finally enabled me to successfully weld up my first damascus billet 

Edited by Ross Vosloo

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

×