Pressure-reducing device for particulate material

Conveyors: fluid current – Intake to fluid current conveyor – Load receptacle type

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406138, 406144, 406168, 406195, 406197, B65G 5304

Patent

active

048027960

ABSTRACT:
A pressure-reducing device in a pneumatic transport system for particulate material having a first and a second transport channel which are arranged so that, at the transition between the two channels, the gas/particulate flow is bent through 180.degree.. After the bend, a throttling means is arranged. The throttling means consists of an annular nozzle, the inlet side thereof being rounded with an arcuate profile in radial section. The pressure-reducing device may be included in a transportation system for feeding particulate material out from a pressurized container to a container under a lower pressure, for example for removing dust from a dust separator in a PFBC plant to a collecting container.

REFERENCES:
patent: 610066 (1898-08-01), Kuser
patent: 914105 (1909-03-01), Boland
patent: 2606097 (1952-08-01), Goodson et al.
patent: 2610093 (1952-09-01), Bergman
patent: 2693395 (1954-11-01), Berg
patent: 2901421 (1959-08-01), Bourguet et al.
patent: 4619562 (1986-10-01), Brannstrom
patent: 4699210 (1987-10-01), Brannstrom
Hanway et al., "Discharge and Handling of Solids from Pressurized Fluidized-Bed Combustors", 10-1982, pp. 34-35, Argonne National Laboratory, Argonne, Ill.

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