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Anonymous Poster

Ceramic Burner Block Replacement

08/03/2010 1:39 PM

Hello,

Our company produces baked goods, to do so, the temperatures in our (industrial) ovens vary from 350 to 450 degrees F. The natural gas mixes with forced air from the blower in slotted ceramic refactory blocks. These blocks however have been getting demolished (ie, stress cracks from uneven heating, Discoloration, and are even completely burning through). Can anyone with ceramic / refactory experience identify the problem or suggest a possible solution?

Thanks

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Guru
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#1

Re: Ceramic Burner Block Replacement

08/03/2010 3:59 PM

I designed pizza ovens under the same conditions. with the burner tube inside of the ceramics tube.

350-450 degrees F........ha, that is only what your RTDs are showing for baking, those burners are alot hotter than that.

These ceramics tubes we had manufactured for the ovens I designed. where there are the ceramic tubes are shaped in a TEE formation to disperse the heat. the Straight tube that runs parallel with the burner tube is usually pretty durable, but where it tees, it gets the brunt of the burner's heat.

I have come up with a sacrificial metal piece to act as a heat shield, to help deflect the heat from the ceramic, but this is only temporary because it is sacrificial, it warps to nothing over time.

Making them is not difficult, and when you make them make extra, I'm sure they are easily replaced.

what type of burners? Eclipse?

I have an idea to try some different approaches

I can help and share the info what I have, sign in and PM me. I like to have tried it on my next oven.......opportunity never came up.

p911

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#2
In reply to #1

Re: Ceramic Burner Block Replacement

08/03/2010 10:57 PM

You could try Bekaert's furinit product.

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Guru
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#3
In reply to #2

Re: Ceramic Burner Block Replacement

08/04/2010 9:25 AM

its interesting but I am having trouble finding it's rating, Looking for something with an output of 500,00 btu's with a turn down ratio of 10:1...found the modulation.

plus availabliity may be a factor.

just have to wait for the guest to come back.

p911

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“ When people get what they want, they are often surprised when they get what they deserve " - James Wood
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#4

Re: Ceramic Burner Block Replacement

08/04/2010 3:54 PM

I do not know where you are but if you can buy high temperature ceramics paste.If yes then use it and will be able to fix the problem

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Masyood
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