page 4 of 25 GBB-EXKOM-08157/2
2.0 Description
2.1 General
Despite the high safety standards of modern plant concepts, the risk of a dust
explosion still continues to be underestimated. In addition, modern production
methods have considerably increased the proportion of fine dusts and also the risk of
an explosion.
The explosion pressure and flame must be vented to the outside. This is not always
possible inside buildings, but can only be realized with considerable physical
modification and large expenditure.
The REMBE
®
Q-Rohr
®
offers a flameless explosion venting device with dust
retention allowing safe explosion venting indoors.
The EXKOP
®MINI
explosion isolation system together with explosion venting offers
effective protection for plant components connected by product or aspiration pipes,
where a risk of explosion propagation exists.
The explosion venting devices Q-Rohr
®
or REMBE
®
triple section bursting discs
vents immediately in case of an explosion and activates EXKOP
®MINI
Safety
Controller. The signal will be identified by the transformer isolated barrier KFD2-
ST2-Ex1.LB and triggers the EXKOP
®MINI
Safety Controller.
The EXKOP
®
Safety Controller transmits a closing signal to the QV II Quench
Valve. This isolates the pipe from the oncoming pressure wave and the flame by
means of a pneumatic actuation via fast acting solenoid valves within a few
milliseconds, thus preventing the explosion from spreading out to other plant
sections.
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