Arrangement for hydraulically conveying solids

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B65G 5330

Patent

active

040293629

ABSTRACT:
An arrangement for hydraulically conveying solids especially coarse solids in form of a slurry includes three chambers which are cyclically and alternatingly filled with slurry at substantially the atmospheric pressure, and a pressurized hydraulic medium, such as water, discharges slurry from a full chamber into a discharge conduit. A plurality of supply conduits connects the sources of slurry and of the pressurized hydraulic medium with the chambers, and valves are interposed between the chambers and the conduits and operative for establishing and interrupting the communication of the conduits with the chambers. A control arrangement controls the operation of the valves as a function of time and of condition prevailing in the conduits and in the chambers so that continuous flow of slurry is obtained in the discharge conduit. The control arrangement is constructed as a step-by-step control unit the operation of which is dependent on signals indicative of pressure in the chambers, density of the slurry, positions of the various valves, and positions of timing devices.

REFERENCES:
patent: 3140123 (1964-07-01), Bowen
patent: 3449013 (1969-06-01), Sakamoto et al.
patent: 3485534 (1969-12-01), Wanzenberg et al.
patent: 3560053 (1971-02-01), Ortloff
patent: 3842522 (1974-10-01), Holzenberger et al.

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