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flue gas prior to discharge of the gas up the exhaust stack. The conical
section of the cyclone is equipped with an isolation damper and a sealed
ash collection container. The container is removed and emptied during
routine maintenance.
Wood Chips as a Fuel:
Your MX-900B Combustion System has been designed for, and is
approved for, the efficient combustion of dry wood chips, green (fresh-
cut) wood chips, hogged (shredded) dry wood, hogged (shredded) green
(fresh-cut) wood, and shredded wood construction demolition waste
(tramp metal removed), for all species of wood.
Fuel Contaminants – Metals & Stones: The fuel in-feed auger and
the ash auger are stout and robust in design and construction. Also,
the fuel in-feed auger is equipped with an automatic jam-clearing
feature. However, there is a practical limit as to how much tramp
metal or stone a mechanical auger will tolerate. Therefore, we
advise that you take care to ensure that your fuel supply is as free
of these contaminants as possible.
Wet Fuel Economics: We recommend that you avoid un-necessary
water in your wood-chip fuel. As a general rule, the amount of
recoverable (available-for-use) heat energy from green (fresh-cut)
or hardwood chip fuel is less than half of what could have been
recovered had the wood chips been allowed to air dry naturally,
and then protected from the weather.
Wet Fuel = Increased Fuel Use: Your MX-900B system will
properly burn green (fresh-cut) wood chips very well, and has been
intentionally designed and tested for this type of fuel.
Unfortunately, as is the case for any type of combustion system, be
it fossil fuel-fired or a biomass fuel-fired, the high amount of heat
stored in the exhaust gas water vapor is significant. When possible,
we advise that you avoid any unnecessary additional water in your
fuel because of the increased fuel consumption needed to
evaporate the water.
Max-Ox™ MX-900B Operators Manual, Rev. 0
Page 23 of 54
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