PURPOSE: To secure safety in cleaning operation, reduce a cost of cleaning work and eliminate sucking of powder dusts by a method wherein an ascending or descending driving device is operated, and there are provided a hollow supporting column, an expandable or retractable upper supporting arm, a lower supporting arm, ascending or descending guide wheels attached to the extreme ends or these supporting arms and contacting with an inner surface of a chimney barrel and a cleaning means for cleaning the inner surface of the chimney barrel attached to each of working arms.
CONSTITUTION: A which 4 is set to an endless wire 3 suspended from a top port of a chimney barrel 1 in such a way as it can be fixed or ascended or descended, its operation is checked by a control device 25, then the winch 4 is operated to cause a hollow supporting column 6, expandable or retractable upper supporting arms 7 and 6, lower supporting arms 7' and 8', ascending or descending guide wheels 9 and 9' attached to the extreme ends of these upper supporting arms 7, 8 and lower supporting arms 7', 8' and contacting with the inner surface of the chimney barrel 1, each of working arms 10 and a brush 16 fixed to each of the working arms 10 to be lifted, and in turn each of the working arms 10 is swivelled around a lower end of the hollow supporting column 6 in a horizontal direction, each of the brushes 16 is oscillated around a vertical shaft 19 in a lateral direction and further each of the brushes 16 is oscillated around the horizontal shaft 13 in a vertical direction to perform an automatic cleaning at an entire inner circumferential surface of the chimney barrel 1.
WADA KOICHI
TAKEUCHI SHO
| JP48076532B | ||||
| JPS54149948A | 1979-11-24 | |||
| JPS6312035B2 | 1988-03-17 |
Next Patent: MULTICOLOR PATTERN COATING COMPOSITION