Cleaning and liquid contact with solids – Processes – Hollow work – internal surface treatment
Patent
1994-11-15
1998-01-06
El-Arini, Zeinab
Cleaning and liquid contact with solids
Processes
Hollow work, internal surface treatment
134 2218, 134 37, B08B 500, B08B 502, B08B 900, B08B 9093
Patent
active
057049904
ABSTRACT:
A method of advancing material through a conveying conduit and blowing the conveying conduit free of material after conclusion of material conveyance includes the following steps: passing a conveying gas through a conveying conduit with a first flow rate for transporting the material therein; after conclusion of the conveying step, passing the conveying gas through a first gas inlet of an injector; drawing additional gas into the injector through a second inlet thereof by the conveying gas entering the injector through the first inlet; and passing a mixture of the conveying gas and the additional gas with a second flow rate, which is greater that the first flow rate, from the outlet of the injector through the conveying conduit for blowing the conveying conduit free of material.
REFERENCES:
patent: 4063317 (1977-12-01), Santore
patent: 4145453 (1979-03-01), Lenhardt, Sr.
patent: 4893966 (1990-01-01), Roehl
patent: 4969942 (1990-11-01), Schwenninger et al.
patent: 5184730 (1993-02-01), Paul
patent: 5403381 (1995-04-01), Areaux
Krambrock Wolfgang
Wilms Harald
El-Arini Zeinab
Zeppelin Schuettguttechnik GmbH
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