nozzle repaire

[woodsmaster]

With an idea stolen from goosegunner I repaired my nozzle. I forgot to put the memory card in the camera for the before picture and I can't find the cord so no before pictures. I got the pre mixsd refractory cement from menards. I did this repaire about a week ago and it is holding up great so far.
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[woodsmaster]

Also fixed a crack in the lower refractory.

 

[Gasifier]

Nice work Woodsmaster. How much wood have you burned through that boiler to get to the point where you needed the repair?

 

[woodsmaster]

I've burnt around 16 full cord

 

[infinitymike]

I assume thats two heating. Is that about the normal life expectancy?

 

[woodsmaster]

I don't Know what the life expectancy is suppost to be. I feel pretty confident I can get at least another 8 cord out of it now, hopefully more.

 

[goosegunner]

Glad it is working out so far. Mine has held great since January. Hopefully a little touch up now and then will really stretch out the use of the nozzle.

I still would like to come up with some type of metal plate like the Froling. That way the opening would stay a consistent size and shape.

gg

 

[Armaton]

Glad it is working out so far. Mine has held great since January. Hopefully a little touch up now and then will really stretch out the use of the nozzle.

I still would like to come up with some type of metal plate like the Froling. That way the opening would stay a consistent size and shape.

gg

Hmmm,

Wondering if you could use a firebrick, like Fred61 did, with a new nozzle it might protect the nozzle from most of the erosion? Or maybe put a steel plate with the appropriate slot size, between them to further protect the nozzle. That way new users would extend the life of their nozzle! Fire brick is cheap.

 

[woodsmaster]

Hmmm,

Wondering if you could use a firebrick, like Fred61 did, with a new nozzle it might protect the nozzle from most of the erosion? Or maybe put a steel plate with the appropriate slot size, between them to further protect the nozzle. That way new users would extend the life of their nozzle! Fire brick is cheap.

I was still considering an overlay. I will see how thist patch wears and maybe do an overlay one of these days.

 

[Fred61]

Just be careful if you are using steel, especially in applications such as in the Wood Gun where the steel is bracketed by refractory. Be sure you have a loose fit between the steel and the refractory because the coefficient of thermal expansion of steel is very high in relation to the refractory. You could fracture your fire box.

 

[Fred61]

I think a brick overlay will help extend the life of a new nozzle and it's worth installing. It only took me 7 minutes to mark, clamp and cut out my overlay from start to finish. It took me 30 minutes to figure out how to fold up that Black & Decker clamping horse and put it away.