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Posted by Bob D. on March 16, 2006 at 10:36:19:
In Reply to: soot blowers posted by John R on March 15, 2006 at 18:40:05:
No, or at least none that I have ever seen or heard of. Think about it - you would need a lance for each tube, or some way to move the lance around the tube sheet while on-line. If you really have to fire #6 in a fire tube unit, realistically just plan on shutting down and rodding out the soot regularly. Your fuel dictates whether you need soot blowers. Residual oil (#6) fueled water-tube units that require soot blowers are usually pretty good sized jobs anyway. Heavy oil burners require almost constant attention (I have never seen an electronic controller pull a gun to clear a clinker). Since most jurisdictions allow LP boilers to run un-manned, LP boilers (<15 PSIG)usually are not #6 FO fired to let the Owners reduce costs by not staffing around the clock. The mechanical efficiency of the blowers can easily be assured by tip design at any practical pressure. The only time you might have a problem is if you run significantly below "design" pressure, and forget to check if the tip will still work (velocity, mass, etc.).
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