Baking & Snack - May 2019 - 98

OUR KNOW-HOW. YOUR STEP AHEAD

INGREDIENT HANDLING

REWORK
PROCESSING daxRec
Through a special process, the residual bread
or dough will be liquefied with water and
homogenized by a special technique of fine
grinding. Take advantage of this professional
technology!

> SAVINGS ON RAW MATERIALS
> INTENSIFICATION ON TASTE
> HIGHER RETURN FLOW
> HIGHER DOUGH YIELD
> IMPROVED HYGIENIC STANDARDS
> ENHANCED FRESHNESS
> BETTER QUALITY

INNOVATIVE DOUGH-/BREAD
PROCESSING BY FINE GRINDING

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long as you're consistent with the size,
you won't feel the impact of changes in
velocity and pressure within the system," Mr. Stricker said.
When it comes to the unloading pressure, it's all about getting a proper air-to-material ratio.
Anywhere from 8 to 12 psi is common,
Mr. Stricker said. "You've got a fixed
volume in a pipe, and there's only so
much material you can get in there
before you overcome the transfer system's ability to move the material."
Mr. Adams suggested that the sweet
spot looks more like 10 psi or less. "At
that, the truck operator will make sure
each hopper is constantly being discharged out of the truck and that there
are no long lag times with the product
coming out," he said.

Don't forget the filter
Efficiency isn't only about how the flour
comes out of the truck, though. It's also
about what happens when it goes into
the silo. It's blown in via air pressure, so
it's important that the filter in the bin
vent is functioning properly.
"The point of the filter is to let the
air escape and keep the flour in," Mr.
Turner said. "To optimize the escape

The most efficient way to run flour from the truck to the
silo is the shortest - and straightest - line possible.
Shick Esteve

of air, it's important to make sure the
filter is sized correctly. If an improperly sized filter can't evacuate the air fast
enough, then the pressure release valve
is forced to spew air and flour out of
the top of the silo, and that can lead
to issues down the road with moisture
and mold."
An automatic filter can play an important role in hitting that optimal
timeframe for truck unloading, according to Mr. Marquardt, who noted
that Zeppelin uses a jet filter on its silos. "You have to keep the filter clean
during the filling process because it's
how you get the proper air flow," he
said. "That means you won't build up
the pressure against the truck unloading." Zeppelin's jet filter comes with
a pressure sensor that will alert operators to pressure buildup in the silo.
"You know when the back pressure
goes up, and that means the filter is
getting clogged," he added.
Mr. Gasser said he often sees filter
sleeves that get clogged. "We usually
have a gauge on the filter, so it will alert
maintenance personnel if the filters

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Baking & Snack - May 2019

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