Aside from steam, jet mills are most commonly operated using nitrogen or compressed air. In the case of the latter, heat energy can be recovered from the compressed air inside the jet nozzles and subsequently reused for the milling process. Exhaust heat arises as a by-product of compressed air generation, which essentially makes it a cost-free source of energy.
With the specific needs of jet milling applications in mind, Kaeser has now extended the range of options available for its two-stage, oil-free compression rotary screw compressors to include such features as compressed air discharge temperature control. Operating via flexible, controlled adjustments to the intercooler, this option can lead to a clear reduction in specific energy consumption per tonne of the final product, depending on the type of material being processed.
Kaeser offers the option of compressed air discharge temperature control on compressors from the CSG, DSG and FSG model range, featuring a power output from 37 to 355 kW and pressure from 4 to 11 bar.
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