Method and apparatus for pneumatically discharging hydromechanic

Details Method and apparatus for pneumatically discharging hydromechanic Method and apparatus for pneumatically discharging hydromechanic

1984-09-27

1987-11-24

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Processes

Including mixing or combining with air, gas or steam

239 10, 239400, 239403, 2394275, 239428, 239432, 239434, B05B 1704

Patent

active

047082887

ABSTRACT:
In a method and an apparatus for pneumatically discharging hydromechanically conveyed hydraulic building material for underground operations, in which compressed air is supplied to the wet building material, pumped in a dense stream, in front of a mouth piece serving the discharge thereof and having in particular a nozzle shape, the compressed air being gunned out together with the building material, the invention provides for the dense stream of the pumped building material to be supplied to the compressed air supplied in a stream, sealed off from the outside air by the wet building material, and thereby be distributed in the compressed air stream and conveyed with the latter to the mouth piece to be discharged therefrom.

REFERENCES:
patent: 1751195 (1930-03-01), Faber
patent: 1894879 (1933-01-01), Lay
patent: 2075867 (1937-04-01), Sampel
patent: 2083851 (1937-06-01), Marcy
patent: 2495540 (1950-01-01), Nichols et al.
patent: 4411389 (1983-10-01), Harrison
Soviet Inventions Illustrated, Derwant Publications Ltd., Week C 21 of Jul. 2, 1980; conclusion No. E6512, Q49; Soviet application 687239 (Poturaev V. N. et al.) of Oct. 10, 1979.
Publication Beton- und Stahlbetonbau, vol. 75, No. 3, Mar. 1980, Berlin; Bertil Sandell "Progresses in Sweden in Preparing Steelneedle Yet Propulsed Concrete," pp. 53-55 (FIG. 10 on p. 55).
German Publication (Jul. 1972) VDI-Z, p. 680 ("Gerate fur den Betonbau-Betonspritz-machinen--Nassverfahren").

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