Cleaning and liquid contact with solids – Processes – With treating fluid motion
Patent
1983-09-06
1985-11-12
Caroff, Marc L.
Cleaning and liquid contact with solids
Processes
With treating fluid motion
134180, 134181, 134199, B08B 302, B08B 902
Patent
active
045525943
ABSTRACT:
Bituminous and other coatings are removed from a pipe surface by directing powerful water jets, e.g. under a pressure of 300-600 bars, and preferably under an acute angle of incidence, against such pipe surface. The apparatus has one or more nozzles, each provided with water supply means, in a frame that can be mounted around the pipe to be treated. In a preferred embodiment, the nozzles are arranged in groups on rotatable annular discs which surround the pipe with some clearance and which receive a reciprocating rotary movement during operation, while the frame carrying such discs is adapted for travelling in longitudinal direction of the pipe. If both movements are coordinated, i.e. effected simultaneously then, each nozzle will follow a zigzag path along the pipe surface, thereby covering a vast area and removing bituminous or other coatings in a fast and efficient way.
REFERENCES:
patent: 1898964 (1933-02-01), Jinnett
patent: 1941002 (1933-12-01), Harrison
patent: 2427129 (1947-09-01), Fields
patent: 3641608 (1972-02-01), Kratt
patent: 3933519 (1976-01-01), Koch et al.
patent: 3985572 (1976-10-01), Petermann et al.
patent: 4229121 (1980-10-01), Brown
van Voskuilen Dirk F.
van Voskuilen Frans
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