[Gasification] grate design

[Philippe MALON]

Who is able to design grates for various fuels burning @ 1400 °C and more ?
Philippe,

-----Message d'origine-----
De : gasification-bounces at listserv.repp.org
[mailto:gasification-bounces at listserv.repp.org] De la part de Toby Seiler
Envoyé : jeudi 3 mai 2007 02:08
À : gasification at listserv.repp.org
Objet : [Gasification] grate design

Jeff,
   
  I for one have not replied, hoping that someone with more experience will.
I don't think it's a lack of interest, but the distraction of long off topic
discussion.  Some is OK, but in my case, I need serious help with the
stochiometrics for my project. 
   
  I understand what you said about broken up fire brick.  As there are a lot
of different fire bricks, I'm left wondering if the temperature limits of
that material is high enough.  As far as the thickness and motion of the
brick, I would assume that the motion helps to move the char down and that
affects the bridging that may occur otherwise.  The thickness then affects
the residence time as the fuel progresses down.  Have you experimented with
different thickness?  A recently asked question was about injecting steam
into that section.  Have you ever tried anything like that?  I'm sure that
the amount of steam will significantly affect everything.
   
  Do you have a ceramic shop locally?  I find that while there are castable
liquids, the higher temp ceramics are relatively solid and somewhat dry.
They are easily formed by hand like one is making a clay pot, adding only
enough water to work it without cracking.  I'm soon to find out and not
scared to make a mistake at this point.
   
  Thanks, best regards, 
   
  Toby Seiler

       
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