Belt cleaning device for papermaking machines
AssigneeVoith Sulzer Papiermaschinen GmbH
InventorsWolfgang Schneider, Hans-Peter Sollinger, Karlheinz Straub, Jurgen Banning, Markus Oechsle
Life of this patent
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Abstract
The invention relates to a device for cleaning a moving transport belt in a papermaking machine, for instance a dry or wet wire belt or a felt belt, having at least one nozzle which can be directed against the transport belt for spraying the woven belt with liquid or gaseous fluid. A suction chamber 18 surrounds and cooperates with the cleaning nozzle (8), so that dirt and/or water mist detached by the nozzle jet (27) from the transport belt (4) or residual water are drawn into the suction chamber (18) and led away, avoiding dirtying or contamination of the nearby area.
Claims27
A device for cleaning a belt of a paper manufacturing machine, comprising:
- at least one cleaning nozzle for spraying a jet of gaseous or liquid fluid on the transport belt to dislodge dirt therefrom wherein said nozzle is at an incline to the plane of the belt;
- a suction chamber defined around the cleaning nozzle;
- and
- a suction device coupled to the suction chamber to cause dirt and/or water mist detached from the belt or residual water to be drawn into the suction chamber and led away,
- in which the cleaning nozzle includes a nozzle head including at least one outlet nozzle, each outlet nozzle having a diameter of from 0.1 mm to 0.8 mm;
- including a high-pressure device coupled to and serving to supply to the cleaning nozzle pressurized fluid under a pressure range of from 100 to 1000 bar;
- the suction chamber comprising a suction bell which surrounds the cleaning nozzle in the manner of a shell.
A device for cleaning a belt of a paper manufacturing machine, comprising:
- at least one cleaning nozzle for spraying a jet of gaseous or liquid fluid on the transport belt to dislodge dirt therefrom wherein said nozzle is at an incline to the plane of the belt;
- a suction chamber defined around the cleaning nozzle;
- a suction device coupled to the suction chamber to cause dirt and/or water mist detached from the belt or residual water to be drawn into the suction chamber and led away;
- in which the cleaning nozzle is rotatable around an axis, and
- including a screen for blocking portions of the cleaning nozzle which produce fluid speed components of the cleaning nozzle directed in a direction of travel of the belt.
A device for cleaning a belt of a paper manufacturing machine, comprising:
- at least one cleaning nozzle for spraying a jet of gaseous or liquid fluid on the transport belt to dislodge dirt therefrom wherein said nozzle is at an incline to the plane of the belt;
- a suction chamber defined around the cleaning nozzle;
- and
- a suction device coupled to the suction chamber to cause dirt and/or water mist detached from the belt or residual water to be drawn into the suction chamber and led away,
- in which the cleaning nozzle is adiustably mounted to produce an oscillating movement.
A device for cleaning a belt of a paper manufacturing machine, comprising:
- at least one cleaning nozzle for spraying a jet of gaseous or liquid fluid on the belt to dislodge dirt therefrom wherein said nozzle is at an incline to the plane of the belt;
- a suction chamber defined around the cleaning nozzle;
- a suction device coupled to the suction chamber to cause dirt and/or water mist detached from the belt or residual water to be drawn into the suction chamber and led away;
- and
- including a scraper device for enhancing cleaning of the belt by scraping off belt contaminants.
A device for cleaning a transport belt of a paper manufacturing machine, comprising:
- at least one cleaning nozzle for spraying a jet of gaseous or liquid fluid on the transport belt to dislodge dirt therefrom wherein said nozzle is at an incline to the plane of the belt;
- a suction chamber defined around the cleaning nozzle;
- and
- a suction device coupled to the suction chamber to cause dirt and/or water mist detached from the belt or residual water to be drawn into the suction chamber and led away.
A device for cleaning a conveyor belt, a dry-end or web-end wire belt or a felt belt in a papermaking machine, with at least one nozzle that is aimed at an incline to the plane of the belt in order to subject it to a gaseous or liquid medium and with a suction space that operates in conjunction with the nozzle, characterized in that the suction space (18) which consists of a suction bell (14) that encloses the nozzle (8) like a jacket, is associated with the nozzle such that any dirt, water vapor, or residual water released from the belt (4) by the jet (27) leaving the nozzle can be sucked into the suction space and removed, the nozzle being subjected to a medium compressed to 100 to 1000 bars, and the cleaning device (2) being located in the vicinity of a roller (6).
Dependencies are inferred from the claim text.