Page 3 of 26
(Vers.12.17.2018)
S
-
100 Refractory Walled Air Curtain Burner with HATZ 3H50TIC Diesel Engine
OPERATING MANUAL
GENERAL DESCRIPTION S
-
SERIES
When delivered to a job site, the S
-
Series machine is ready for use as soon as it is off
-
loaded. The entire system is built on a skid type base frame which is designed for easy
movement over the ground. The forward equipment deck supports a four cylinder die-
sel engine, a 60 gallon fuel tank, the direct drive system and the fan. When viewed
from the front of the unit, the patented air disbursement manifold is mounted on the left
top side of the combustion chamber. The back of the firebox is fitted with refractory
lined doors that allow ash removal and access to the (only when it is empty) firebox.
The diesel engine is coupled through a clutch drive PTO (Power Take
-
Off) that turns
the fan. The high velocity air is sent down the manifold through the vanes and directed
to the outlet nozzles. A balanced and distributed air flow is directed across the top of
the box and then reflected down into the combustion zone.
The curtain of air acts as a top over the fire box, trapping a large percentage of the es-
caping particulate matter (smoke) and causing it to burn down even further under the
curtain before finally escaping through the curtain as a hot gas. The air from the noz-
zles travels across the firebox creating the air curtain effect, then it reflects off the far
side thermo
-
ceramic wall, adding oxygen to the combustion zone helping to generate a
hotter more complete fire. This additional agitation helps prevent the fire from starving
for oxygen as the ash builds up during burning operations.
All of this is carefully engineered to provide the correct amount of air at the correct
velocity. It is sometimes thought that more air flow will actually increase the burn
rate. This is INCORRECT. Modifying the air flow will actually have the opposite
effect and reduce the machine
’
s through
-
put. Additionally, it will reduce the ma-
chine
’
s ability to meet air quality minimum standards. There is a maximum rate at
which wood can burn. Trying to exceed that rate by adding more air to an air cur-
tain burner causes two major problems;
1)
It will cool the fire reducing combustion efficiency creating more smoke (carbon
dioxide and nitrogen enriched). This will begin a circular effect of further reduc-
ing the oxygen and further reducing combustion efficiency. The result is your
through
-
put drops and smoke increases.
2)
Increasing the air flow beyond design standards will over pressurize the firebox
causing larger sized particles to be ejected from the firebox. Besides violating
the EPA limits for PM (particulate matter) the larger, hotter embers ejected will
pose a much greater fire hazard.
