5. Functional Description
This functional description is intended for all operating personnel of the equipment.
General knowledge of conveying systems is required to operate the equipment
Ensure in each case that the operating personnel are sufficiently knowledgeable about
the equipment.
The safety filter is used to clean the vacuum air of the entire system and must be installed in
every central conveying system to protect the vacuum pump from dust and debris. Primary
system filtration occurs in the filter chamber, not in the vacuum receivers. The central filter
chamber reduces maintenance of vacuum receiver filters on top of processing machines.
A filter cartridge inside the safety filter separates the vacuum air from the dust particles flowing
along with it. A vortex created in the filter chamber separates carry-over from the air stream, and
the filter element catches any dust and debris drawn into the upper chamber.
Depending on the style of filter, the filter cartridge is cleaned via implosion blowback or
compressed air blowback. Dust and debris settles in the collection bin, which must be emptied
periodically. No materials are conveyed during blowback. The blowback cycle is adjustable.
(Refer to the Conveying Control Manual)
Compressed Air Blowback. Compressed air blowback is accomplished when short blasts of
compressed air are blown through the filter.
Implosion Cleaning. Implosion cleaning is accomplished by using an clearing valve to create a
vacuum in the collection area of the filter chamber. The clearing valve is actuated and allows an
inrush of atmospheric air, which flows through the filter cartridge and cleans it from the inside
out.
The XFC-SC Cyclonic Pre-Filter is also available. Consult factory.
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