30
Installation, Operation and Maintenance Manual
Dalamatic Insertable Dust Collectors – Series DLM V
SPECIFICATION
Description and range
The Dalamatic Insertable is an automatic reverse-jet type of dust collector,
designed to handle known quantities of dust-laden air, and is capable of
continuous operation over extended periods by virtue of the ‘reverse air’ filter
cleaning system employed. This system, which functions during the normal course
of operation, not only serves to maintain optimum filtering efficiency at all times,
but enables the collector to operate at a constant rating – in that it maintains a
uniform pressure drop across the filter elements.
The basis of the Dalamatic is a module comprising a group of filter elements
mounted on a sealed frame. The elements are fitted side by side and the individual
sealing arrangement effectively separates the dirty (inlet) side of the collector
from the clean (outlet) side, as shown in figure 15. Removal of filter elements is
always carried out from the clean side of the collector.
The Dalamatic Insertable dust collector range is based on seven sizes of filter
module, each containing a number of filter elements (as indicated in Table 3).
These filter elements are available in four sizes, having an effective filtration area
of 0.7 m², 1.0 m², 1.25 m² and 1.5 m² respectively (see Table 3).
The dust collector is designed for application in silos, bunkers, conveyor transfer
points etc. Variations of the Insertable are available for applications in pneumatic
conveying systems, operating at pressures either above or below atmospheric
pressure depending on collector type. For further details refer to Publication
364.
Equipment is available suitable for use in a potentially explosive atmosphere (Directive
94/9/EC) satisfying the requirements for group II category 2G or 2D and 3G or
3D T135°C.
Construction
The Insertable collector body is flanged and drilled for mounting over an aperture
located in the top or side of an enclosed bin or silo.
The DLM V type F dust collector also incorporates a fan to provide the suction
necessary for efficient operation in non-pressurised conditions such as conveyor
transfer points.
Compressed air distribution manifold (fig. 1)
The manifold is fabricated from either 150sq x 6mm thick or 180sq x 8mm thick
steel tube, with welded ends. Holes are provided for diaphragm valves, drain
plug, pressure relief valve and air inlet moisture separator connections. (Moisture
separator and pressure relief valve are not supplied as standard with the dust
collector).
It may be necessary to remove a diaphragm valve for internal inspection
purposes.
The manifold supplied with the Dalamatic Insertable dust collector has been
independently approved to operate under the conditions as specified in
Table 5.
