Scdls Systems - PEBCO Dustless Loading Spouts Manual

PEBCO®
DUSTLESS LOADING/SELF-CONTAINED DUSTLESS LOADING SPOUTS
TILT SWITCH AND JUNCTION BOX
Tilt switches are used to indicate the height of the material or a choked loading condition, and are
mounted on a chain beneath the outlet assembly. When the switch is pushed away from the vertical
position by the material pile, the switch sends a signal to the operator, indicating the spout should be
raised until the switch resets. Tilt switches are available in carbon steel, stainless steel, and PVC,
with an optional float ball for liquid applications. For specific manufacturer data, see the associated
cut sheet.
PENDANT CONTROL (WIRED OR UNWIRED)
PEBCO® can provide a pendant control for the unit if desired. Controls are engineered to meet
the needs of the customer, and vary in configuration depending on the application. See the
associated cut sheet for specific manufacturer data.
MOTOR BRAKE
Motor brakes are used to assist in stopping of the spout. DLS units without motor breaks rely on
friction in the gear reducer to stop the spout. If more precision is required, motor brakes are used so
that when the motor is not receiving a signal to operate, the brake engages.
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SCDLS SYSTEMS

Unlike standard DLS systems, Self-Contained Dustless Loading System (SCDLS) are manufactured
with a dust collection system installed directly onto the housing assembly. This eliminates the need
for a stand-alone dust collection system, and also provides an easy way to put material back into the
product stream.
During the loading process, the dust filters, which are positioned within the spout, are periodically and
automatically purged by air blasts from the diaphragm valves. This forces product collected on the
filters back into the product stream and into the vehicle or container being loaded.
In addition to the components of the standard DLS system, the SCDLS contains the following:
AIR PLENUM
The Air plenum is a sealed chamber located directly above the housing assembly. Air is drawn into
the plenum through the filters, and expelled through the exhaust fan. The plenum also contains
inspection panels for easy access to the filters for inspection and replacement.
HEADERS FOR COMPRESSED AIR
The headers on an SCDLS serve as an air reservoir for the diaphragm valves. Air is supplied to the
headers through one of the fittings located on each header. Use 70-80 psi of clean dry air to charge
the headers.
DIAPHRAGM VALVES
Diaphragm valves pulse air onto the filters during operation to remove product buildup and force it
back into the product stream. The valves are located on top of the plenum to allow for easy access,
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PRODUCT OVERVIEW