Page 524 - Flipbook_SolidDesignSoutheast2020

ModelBDF-1.5-2 Volumetric Feeder

Featuring two independently driven metering augers and dual
conditioning/flow-inducing agitators that combine to provide both

positive product flow and feed of an unsurpassed variety of dry
solid ingredients for both continuous and batching applications.

Operational Overview
In a centrally located trough integral to the bottom of
the feed chamber of the Model BDF-1.5-2 Feeder, two •
metering augers are mounted side by side, beneath a
pair of slow speed, counter-rotating, flow-inducing
agitators. The two metering augers, entirely inde-
pendent of each other, are individually driven, normal-
ly in the same direction by variable speed drives. The
dual agitators are also independently driven, usually
at a constant speed, by heavy-duty gearmotor drives.
On occasion, however, the speed of the agitators may
operate in proportion to the speed of the metering
augers. The Model BDF-1.5-2 Volumetric Feeder will
accurately and reliably meter an unparalleled variety •
of dry solid ingredients, particularly those typically • •
characterized as “difficult-to-handle”. Conditioning/Flow-
Inducing Agitators
Functionally, each of the two metering augers can
easily and conservatively provide a 10:1 feed (speed) •
range, which when overlapping in output, will produce
a total feed range output (turndown ratio) as indicated Feed Chamber
in the Capacity Chart. In addition, the Capacity Chart
also indicates the total feed range output (turndown
ratio) if the feed (speed) range were increased to 15:1, Metering Augers
also with overlapping outputs. The two metering
augers can be identical in size or they can be different
(as the Capacity Chart outlines).
A switch located on the feeder’s control panel selects
which metering auger will operate, or if both are to
operate. Alternately, such selection can be completed
automatically.The metering augers are each equipped
with variable speed drives that can provide a speed
range of 20:1, 30:1 or 50:1, depending upon the
model and type variable speed drive selected.The dis-
charge cylinders of the two metering augers mount
onto a common plate that is attached to the feeder’s
feed chamber. On the discharge end, the discharge
cylinders can be configured for attachment to a com-
mon right-angle downspout.

In addition, the Model BDF-1.5-2 may also be utilized
as the metering mechanism of an Acrison Model 402X
“Weight-Loss-Differential” Weighing System; the
weigh feeder designation would then be a Model
402X-BDF-1.5-2. A HIGHLY VERSATILE
DRY SOLIDS METERING DESIGN

In order for an auger type dry solids volumetric feeder to
feed accurately and reliably, its metering auger must be
uniformly and consistently filled with product.

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