Soot blower

Details Soot blower Soot blower

1990-09-04

1992-03-24

Hornsby, Harvey C.

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

15318, F23J 302

Patent

active

050975641

ABSTRACT:
A boiler soot blower provides a lance tube having a pair of opposed nozzles at its end. The lance tube is carried by a carriage for reciprocation between an extended and retracted position, and is caused to rotate about its longitudinal axis in timed relationship to the extension and retraction. A lost motion drive is provided for the rotation of the lance tube so that the nozzles produce a helical first spray pattern of cleaning fluid during extension and a second spray pattern of cleaning fluid during retraction which is offset from the first spray pattern and extends substantially midway between the adjacent portions of the first spray pattern. This results in a composite pattern which provides efficient cleaning.

REFERENCES:
patent: 3604050 (1971-09-01), Nelson et al.
patent: 4177539 (1979-12-01), Elting
patent: 4207648 (1980-06-01), Sullivan et al.
patent: 4222144 (1980-09-01), Horner et al.
patent: 4351082 (1982-09-01), Ackerman et al.
patent: 4387481 (1983-06-01), Zalewski
patent: 4437201 (1984-03-01), Zalewski
patent: 4498213 (1985-02-01), Zalewski

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