High process reliability...around the clock and for years to come
At no other place in the steel mill is process reliability more important than at the blast and arc furnaces. Once commissioned, a blast furnace must operate around the clock over the course of years.
Maintaining control system reliability in the face of high temperatures and strong magnetic fields is a top priority for dependable accomplishment of tasks such as water cooling, the safe supply and discharge of gas when producing pig iron in a blast furnace, and correct positioning of electrodes in an arc furnace. With a broad base of technologies and operating principles, Balluff provides sensors and systems that solve a wide variety of applications in the steel industry.
Color sensors and contrast sensors help ensure the correct orientation of electrodes in the arc furnace. The sensor, well-protected inside the gripper, checks whether the electrode has been gripped correctly by interpreting the color markings on the electrode.
Rugged Balluff inductive sensors detect the presence of metallic objects, reliably reporting status even when subjected to the harsh operating environments of the steel industry. Immune to the disruptive influence of intense electromagnetic fields, they dependably ensure the correct electrode position in arc furnaces.
Balluff's magnetostrictive linear position sensors enable precise control of valves, flaps, and dampers at the blast furnace. By monitoring degree of opening or closing, they permit the controlled regulation of supply and return air in pig iron production. For simple Open/Closed status monitoring, consider Balluff's rugged inductive proximity sensors.
Balluff pressure sensors meet the exacting demands of the steel industry for stable process control. With their extremely low pressure drift, they enable steady pressure measurement during changing environmental conditions around blast and arc furnaces, rolling stands, hydraulic systems.
Balluff ultrasonic sensors enable stand-off monitoring of bulk material levels on conveyor belts and in silos. Using reflected sound waves to detect material height from a distance, ultrasonic sensors can reliably monitor materials having a variety of colors and textures…even under the harsh operating conditions found in a steel mill. Ultrasonic sensors help ensure that blast furnaces are reliably charged, even in the presence of dust and dirt caused by ore charges and coke.