| 摘要 |
In an apparatus for pneumatically conveying powder substances in a pipe system, wherein a volume is sucked in with reduced pressure and discharged with increased pressure for being passed further along, provided within the pipe system is at least one metering chamber, which can be alternately filled and emptied by way of a control member, for metering the powder substance. Connected to the metering chamber are on the one hand-with the interposition of a filter-a gas pressure conduit and a suction conduit and on the other hand a feed conduit and a discharge conduit.
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