In mid 2015 Bernard Controls, a specialist in electric actuation technology, became involved in the retrofitting of electric actuators mounted on dampers of the ventilation system of the plant of Arcelor Mittal Steel Dunkerque (North of France). This site was already equipped with some Bernard Controls actuators. In such applications, electric actuators are at the core of industrial safety.
In total, the operation consisted of the replacement of eight electric actuators on two tapholes (TC41, TC43) in HF4 (blast furnace n°4) -four per taphole, processing of wiring and taking off some existing targeted installation points and setting and equipment testing, both for local and remote command & control (Profibus protocol).
In order to satisfy Arcelor Mittal’s requirements, Bernard Controls supplied STX models of explosion proof multi-turn electric actuators with INTELLI+® integrated intelligent controls. The STX range figures the BC Premium Label, which is a guarantee of quality and security for installations in case of demanding environmental and operational constraints. On the other hand, as there is no access to the crucible, the possibility to install the INTELLI+® in a separated control box was clearly essential to get a long-distance control (20m) over the actuators. In addition to electric actuators, BC also supplied and set up a Master Station Fieldbus Solution.
