refactory

[jj2003]

does anyone see any probs using 2 inch fire brick for secondary burn chamber down draft . has anyone attempted this and got some pics they could post or any feed back on how its doing

 

[sdrobertson]

Nofossil tried this quite a long period ago. If I remember correctly he built a labarith under his nozzles and they turned to gravel quite quickly. I dont think regular firebrick will take the heat and you need refractory material.

 

[jj2003]

i appricate the feed back , saved me from a mistake... has anyone tried making thier own refractory , from a blast furnace reciepe?

 

[WoodNotOil]

http://en.wikipedia.org/wiki/Fire_brick

The topic of "firebricks" and "refractory" can be confusing because there are a variety of products out there using those names, but they are not all comparable products. You want to look for a product that says it is ceramic or high temperature. Make certain is rated for temps well above 2000* so that they will last a while.

 

[rotaxman]

some interesting products here http://www.zircarceramics.com/

 

[mark123]

Here are some other pages about building your own refractory

http://www.backyardmetalcasting.com/refractories.html

http://www.gordosoft.com/woodstove/refractoryDIY.htm

 

[tom in maine]

I can tell you from recent experience, I have warped firebrick and refractories that are rated under 3,000F have failed.
I suspect that any gasifier should only use firebrick or refractory that is rated to 3,000F, just to cover your butt.
At that point, firebrick might work, if rated for these temps.

With a lot of refractory scraps,
Tom

 

[dancarbo]

Yoy can buy refractoty cement from New Horizion's online store for $1.50 per pound. Look under stove parts on the second or third page. Here is the link; http://www.newhorizonstore.com/Default.aspx

Dan