Installation, Operation and Maintenance Manual
Unimaster Dust Collectors – Series UMA 40-750
43
SPECIFICATION
in position by the locating mechanism. A secondary or absolute filter monitor
can be supplied to measure the pressure drop across the filter elements which
will indicate the filter condition, and when maintenance is required.
Pressure balance pipe
To assist in the safe removal of toxic or noxious dusts the dust container may be
lined with a polythene bag which can be closed and sealed before lifting out of
the container. The container is fitted with a detachable pressure balance pipe to
prevent the bag from being drawn up into the collector.
Left-hand shaker
All the standard range of Unimaster dust collectors have the shaker motor and
mechanism on the right-hand side of the collector when viewed from the front.
When site conditions call for collectors to be positioned side by side or there are
space limitations, collectors may be supplied with the shaker motor positioned
on the left-hand side when viewed from the front.
Half bags
On some Unimaster applications, for instance, when handling paper or cotton
fluff, a filter assembly with every other pad removed may be advantageous to
enable the filter to clean down more effectively. This reduces the cloth area of the
collector by 50% and the collector designation is changed. e.g. The designation
UMA 250H K3 becomes UMA 250/125H K3 – the figure 125 signifying the reduced
cloth area in ft².
Construction
The Unimaster dust collector is constructed of sheet steel. Access to the various
chambers, where necessary, is provided by front access doors. The sack tipping
base also has the option of having a swing door. The fan chamber is mounted
above the filter chamber with the discharge arrangements i.e. the dust container
or sack tipping base positioned below. The shaker assembly is usually mounted
on the right hand side of the filter chamber when looking from the front with access
via a removable cover.
Acoustic diffusers are mounted above the fan section on all collectors except for
the UMA 40 and 40MM where they are mounted at the rear or side.
Secondary and absolute filters are mounted above the fan section on all collectors
except for the UMA 40MM and 750 where they are mounted between the filter
chamber and the fan chamber. The secondary filter monitor, when supplied, is
mounted on the right-hand side. (UMA 40 and 70 collectors are not available
with secondary or absolute filters).
Collectors fitted with an explosion relief assembly have an explosion vent at
the rear, additional door straps for added strength and additional earthing as
required.
