Dust Filtration Upgrade

The project involved the installation of a new bag-filter dust-control system downstream of the existing cyclones.
The upgrade was required to reduce particulate emissions and bring the installation within the limits of the plant’s environmental permit.
Donaldson filtration technology was selected in accordance with recommendations from the original process integrator.
DMD developed the equipment, ductwork, access-platform and supporting structural design required to integrate the new filtration system into the existing operational facility.

The client required a substantial new filtration system to be installed on an existing congested roof with limited available space.
The arrangement needed to provide safe all-round access for operation, inspection, maintenance, manual handling and filter-bag removal.
Large-bore ductwork had to be routed between the existing cyclones, new filter and existing vent arrangements.
Process requirements relating to airflow, pressure drop and minimum straight duct lengths significantly influenced the equipment position and overall layout.
The design also had to consider the structural capacity of the existing building, installation access and the practical lifting of major equipment components.

A detailed laser scan and site-verification exercise was completed to establish an accurate representation of the existing rooftop installation.
Equipment-location and duct-routing studies were undertaken to identify a practical arrangement within the restricted available space.
Process requirements for airflow performance, pressure drop and straight duct lengths were incorporated into the layout development.
The design was progressed through structured 30%, 60% and 90% model reviews.
Safe access for operation, inspection, filter-bag replacement and future maintenance was considered throughout the design.
Equipment lifting, installation sequencing and integration with the operational plant were reviewed as part of the developing arrangement.
Structural and ductwork designs were coordinated within a single 3D environment to identify and resolve potential clashes before construction.