Installation, Operation and Maintenance Manual
DCE 2000 Series Dust Collectors
6
General safety reQuIrements
Compressed air is recommended for collectors that operate using reverse
jet cleaning. Alternative gases should be assessed before use to ensure that
explosive atmospheres are not introduced during media cleaning.
Where the equipment supplied is suitable for working within a potentially
explosive atmosphere (as defined by Directive 94/9/EC) it will be according
to the categories and conditions marked on the collector serial nameplate.
You should ensure the equipment supplied by others is also suitable. If no
marking is given on the serial nameplate then the supplied equipment is not
suitable for use in potentially explosive atmospheres.
Care should be taken to ensure that any potentially explosive atmosphere
is not present when performing operations that increase the risk of ignition
(opening of controller for adjustment or electrical repair for example). Ensure
the installation is always returned to its original state.
To reduce the risk of ignition when handling explosive or flammable materials,
it is important that the accumulation of flammable deposits are prevented/
removed, e.g. from within ducting etc.
If the collector is handling a potentially explosive dust or is placed in a
potentially explosive atmosphere, then all motors should be connected to
thermal protection devices to prevent them exceeding their maximum surface
temperature. All electrical equipment should comply with a category according
to EN 60079-0.
Where the dust being processed can ignite due to exothermic reaction,
including self ignition, the collector MUST be fitted with a suitable explosion
protection method (venting for example). The risk of ignition can be minimised
by avoiding the accumulation of dust layers with regular cleaning.
The dust collector may be fitted with explosion protection in the form of a vent
panel. Precautions, as set out in the Scope of Delivery, are used to minimise
the risk of ignition of any dust clouds contained within the dust collector. The
possibility of other ignition sources being introduced into the collector during
periods where any dust cloud may be present should be minimised. Particular
care should be taken to avoid introducing glowing particles via the collector
inlet ducting.
The explosion relief assembly, where fitted, has been designed to provide
adequate safety from an explosion initiated from within the collector, for the
given dust explosion characteristics and collector arrangement as set out in
the Scope of Delivery. You should ensure that explosions are not allowed
to propagate into the dust collector (using suitable isolation devices) since
pressures may be generated leading to unsafe equipment rupture.
Where applicable, equipment connected to the dust collector (for example,
a cyclone) should be protected, using suitable isolation devices, against the
transfer of flame and pressure if, in the event of an explosion initiating inside the
dust collector, the connected equipment is not capable of safely withstanding
these effects.
Summary of Contents for DCE 2000 Series
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