| 摘要 |
PROBLEM TO BE SOLVED: Not only to enable obtaining a wide space for inspection on the peripheral surface of a pulverizing part but also to enable easily doing removing work of residue for a pulverizer or the like from a bottom part of the pulverizer and to effectively send compressed air to pulverizing nozzles with small pressure loss. SOLUTION: In this pneumatic pulverizer having a pulverizing part 21 in the lower part thereof and having a classifying part 22 for classifying fine particles pulverized in the pulverizing part 21 in the upper part thereof where the pulverizing part 21 is provided with plural pulverizing nozzles 23 arranged so that they jet compressed air toward the center thereof and raw materials previously charged from a raw material feeding part 21 are accelerated together with air discharged from the pulverizing nozzles in the pulverizing part and are hit against each other in the central part to be pulverized and are carried on an air flow and conveyed to the classifying part 2. The plural nozzles 23 arranged so that they jet compressed air toward the center are directly fitted to an annular pressure equalizing pipe 24 concentrically arranged outside an annular pulverizing part 21a inward in the radial direction through a through-hole for making the pressure equalizing pipe 24 and the pulverizing nozzles 23 communicate with each other. The tip parts of the pulverizing nozzles 23 are fitted to an opening part bored in the outer wall of the annular pulverizing part 21a, directly connected therewith, and supports 25 are fitted to the lower part of the pressure equalizing pipe 24.
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