• Eheran@lemmy.world
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    3 months ago

    The insulation is on the inside, the steel on the outside needs to be cold to bear the load. This is a limiting factor for indirectly fired rotary kilns.

    They do all of what you say, generally really well optimized, since even tiny improvements mean large savings.

      • Eheran@lemmy.world
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        3 months ago

        Will do, but cement plants are actually not really the stuff I work on, since there are only so many and they already know what rotary kiln they want :D Those things are used all over the place from tiny (few cm diameter, less than a meter long) to massive like for cement. From high tech catalysts or activated carbon to recycling processes and every step in-between.