CRM developed a probe determining the raw material trajectories in bell-less top charging,
by measuring the force generated by the material stream on a beam, in function of its
position in the furnace. A prototype probe was tested on an industrial blast furnace
during its first charging after a relining. These trials allowed the determination
of both coke and sinter trajectories for the various chute angles. These results
were validated by measurements carried out simultaneously by Irsid with painted bars.