| 摘要 |
A cylindrical vessel has a drive shaft rotatably mounted therein and extending along substantially the entire longitudinal extent thereof. This drive shaft is rotatably driven by a motor at a speed of 1,500-10,000. Solid particles to be comminuted which may be of coal and limestone/dolomite or lime are fed into the vessel. Connected to the shaft and rotatably driven therewith is a centrifugal compressor fan which forms an uplifting air curtain which suspends the particles. Mounted above the compressor and rotatably driven by the drive shaft are a plurality of rotors, screens, and a disc mounted in an aperture formed in a fixed plate which forms a circular vortex in the space between the disc and the plate. The particles are comminuted by the successive action of the rotors, screens and the circular vortex, larger particles being repelled for further comminution while the finer particles are fed from the vessel to cyclonic classifiers. The fully comminuted particles are removed for utilization while the gas which carried the particles is first cooled to liquidize moisture which is removed therefrom and then recycled to the vessel.
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