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Installation, Operation and Maintenance Manual
Dalamatic Insertable Dust Collectors – Series DLM V
Jet tubes (figs. 1, 15 & 17)
Positioned in the ‘clean side’ of the collector is a series of full-length ‘jet tubes’
having small-diameter jet orifices located adjacent to the outlet header of each
filter element. The ‘open’ end of each tube is connected by a rubber hose to a
compressed air valve; the closed end is flattened and crimped, and is secured
by a bolt and nut.
Filter elements (figs. 1, 15 & 17)
Each removable filter element is rectangular in shape and comprises a slim wire
mesh frame or ‘insert’ for the filter bag, to which is welded a shaped steel outlet
header with sealing flange. The filter bag itself consist of a rectangular pocket
incorporating a resilient sealing ring at the open end. The bag is pulled over
the wire portion of the insert until the sealing ring meets the sealing flange. The
ring is compressed when the element is clamped into the seal frame, effectively
isolating the dirty side from the clean side of the collector. There are four sizes
of element, designated 0.7 m, 1.0 m, 1.25 m and 1.5 m according to the length
of filter bag and used as shown in Table 3.
Antistatic filter elements are available, together with stainless steel and brass
securing bolts and washers, as an option for installations where the dust is
potentially explosive. (See ‘Installation’ section.)
Seal frame (figs. 15 & 17)
The seal frame assembly is a rectangular structure of sheet steel which is flanged
for rigidity and incorporates a slotted steel pressing into which the filter elements
Figure 17 Filter element details
Jet orifice
Wire mesh
insert frame
Sealing
flange
Jet tube
Insert header
Seal frame
Insert clamp
Recessed slot for
filter element
Felted fabric
filter bag
Sealing ring
Welds
SPECIFICATION
