| 摘要 |
A device for pressure pneumatic transport of bulk materials comprises a loading lock shutter, an air duct located underneath and divided by height into two channels, an ejector in the upper channel with possibility of its adjustment, a throttling plate at the inlet to the channel. According to the invention, the length of a narrowed section of the ejector in the upper channel makes not less than three lengths of the outlet of a lock shutter, and a throttling plate is hinged by one end to allow air distribution in the channels. This implementation allows to eliminate air losses due to leakage of the lock shutter, which make up a half of the total cost of transportation, by reducing the amount of air and its pressure just below the lock shutter and guiding the main portion of air in parallel flow. |
