Presses – Platens or pressure surfaces
Patent
1978-11-06
1980-10-14
Wilhite, Billy J.
Presses
Platens or pressure surfaces
100148, 406 56, B30B 1100
Patent
active
042274516
ABSTRACT:
A device for the delivery of bulk materials into the suction pipe of a pneumatic transport installation comprises a vertical pipe designed for charging the bulk material, and a closing element installed on its lower end and placing the charging pipe into communication with the suction pipe of the installation. The closing element comprises a cylindrical shell with a coaxially built in sleeve, the inside diameters of both the shell and the sleeve being approximately equal to the inside diameter of the charging pipe, and a helical band located in said shell. The pitch of the helical band is close to the diameter of the shell and its width at the end facing an under-band portion of the shell is equal to the radius of said shell. The band is connected to said sleeve which is kinematically linked with a reversible drive for joint rotation with it so that, when rotating in one direction, the helical band compacts the bulk material in the under-band portion of the shell until said portion is completely filled. When rotating in the opposite direction, the band forms the face surface of the compacted bulk material for making a briquette which extends wall-to-wall across the shell.
REFERENCES:
patent: 1346293 (1920-07-01), Bernert
patent: 2793914 (1957-05-01), Gardeniers
patent: 2973993 (1961-03-01), Delagrange
patent: 3948167 (1976-04-01), Defeudis
Alexandrov Adolf M.
Alexeev Gennady M.
Bairon Genrikh V.
Elin Fedor E.
Matveev Vladimir M.
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