Conveyors: fluid current – With diverse power-driven conveyor – Rotary
Patent
1986-05-09
1987-11-10
Nase, Jeffrey V.
Conveyors: fluid current
With diverse power-driven conveyor
Rotary
406127, B65G 5346
Patent
active
047054336
ABSTRACT:
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.
REFERENCES:
patent: 2417700 (1947-03-01), McCarty
patent: 3311421 (1967-03-01), Heinemann
patent: 3351390 (1967-11-01), Dellsperger
patent: 3995777 (1976-12-01), Diez et al.
patent: 4154486 (1979-05-01), Nishikawa
patent: 4376600 (1983-03-01), Egli
patent: 4498818 (1985-02-01), Bjarnason et al.
patent: 4500231 (1985-02-01), Staiger
ASEA STAL Aktiebolag
Nase Jeffrey V.
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