How Jet Mills Maintain a Low Grinding Temperature: A Comprehensive Technical Analysis
Jet mills achieve precise temperature control through adiabatic expansion cooling, a thermodynamic process where compressed gas (air/N₂/CO₂) rapidly expands through nozzles, absorbing heat from the grinding chamber. As high-pressure gas accelerates to supersonic speeds and expands into the low-pressure chamber, its temperature plummets (e.g., from 25°C to -45°C at 6 bar), creating an in-situ cooling […]