B - Operations – Transporting – 65 – G
Patent
B - Operations, Transporting
65
G
302/22
B65G 53/50 (2006.01) B65G 53/46 (2006.01) F23C 10/16 (2006.01) F23K 3/02 (2006.01)
Patent
CA 1260992
ABSTRACT OF THE DISCLOSURE: A pneumatic transportation system for transferring particulate material from a storage container at one pressure level to a receiving unit at another pressure level (e.g. in a feeding system for bed material to a combustion chamber of a PFBC plant). The transportation system incorporates a material feeder comprising a housing having a rotor containing two material chambers. The end walls of the housing and the rotor have cooperating sealing surfaces. The inlet opening of one material chamber is positioned opposite to an inlet opening in the upper end wall of the housing, when the outlet opening of the other material chamber is positioned opposite to an outlet opening in the lower end wall of the housing. After rotation of the rotor, the inlet opening of the material chamber will be positioned opposite to the inlet opening and the outlet opening of the chamber will be positioned opposite to the outlet opening. Between the actual material chambers and the outlet openings there are cut-off valves. These may be of the so-called L- valve type. The material flow through these valves is regulated by the gas supply via a regulating valve. A rotor with but one chamber is possible.
508398
Asea Stal Aktiebolag
Robic Robic & Associes/associates
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