Method and apparatus for pneumatically discharging...

Details Method and apparatus for pneumatically discharging... Method and apparatus for pneumatically discharging...

E - Fixed Constructions

21

D

299/18, 222/29,

E21D 11/10 (2006.01) B65G 53/32 (2006.01) E04F 21/12 (2006.01)

Patent

CA 1299152

Abstract In a method and an apparatus for pneumatically discharg- ing 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 com- pressed 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 com- pressed 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 there- from.

463884

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