Pneumatic high-pressure slow conveyor system - has control circuit maintaining predetermined pressure difference between despatch and receive vessels

摘要

The pneumatic high-pressure slow conveyor system comprises despatch and receiving pressure vessels. A suitable control circuit maintains a predetermined pressure difference between the vessels during the transport operation, at any desired level. The difference can be automatically varied, dependent on specific operating conditions, and it can be relatively small compared with the pressure level in the system. The transporting medium can be de-pressurised separately from the material during the two flow phases.