Cleaning Device

Abstract

A device for cleaning a continuously revolving clothing in a machine producing and/or processing a paper, cardboard, tissue or other fiber web, includes at least one cleaning nozzle generating at least one fluid cleaning jet directed towards the clothing and a channel discharging fluid and dirt from the clothing in a discharge direction. The discharge channel has a first portion with a receptacle opening at the beginning of the discharge channel and a cleaning opening facing the clothing forming a cleaning zone. The nozzle causes the jet to impact the clothing in the cleaning zone. The receptacle opening is oriented opposite a clothing running direction and the nozzle provides the jet with a velocity component transverse to the running direction striking the clothing in an angular range 20°<B<80°, particularly 30°<B<70° relative to a clothing plane seen in the clothing running direction.

1 - 16 . (canceled) 
     
     
         17 . A device for cleaning a clothing having a continuously revolving running direction along a clothing plane in a machine for at least one of producing or processing a paper, cardboard, tissue web or other fibrous web, the device comprising:
 at least one cleaning nozzle for generating at least one cleaning jet from a fluid, said at least one cleaning jet being directed onto the clothing and impacting the clothing in a region of a cleaning zone;   said at least one cleaning nozzle providing said at least one cleaning jet with a velocity component in a direction transverse to the running direction of the clothing;   said at least one cleaning nozzle causing said at least one cleaning jet to impact the clothing at an angular range of 20°<B<80° relative to the clothing plane along the running direction of the clothing;   a discharge duct for discharging the fluid and dirt released from the clothing by said at least one cleaning jet in a discharging direction;   said discharge duct having a beginning and a first portion with a receptacle opening at said beginning of said discharge duct, said receptacle opening pointing counter to the running direction of the revolving clothing; and   said first portion of said discharge duct having a cleaning opening pointing toward the revolving clothing and forming said cleaning zone.   
     
     
         18 . The device according to  claim 17 , wherein said angular range is 30°<B<70°. 
     
     
         19 . The device according to  claim 17 , wherein said at least one cleaning nozzle causes said at least one cleaning jet to impact the clothing at an angular range of 45°<A<45° relative to the transverse direction. 
     
     
         20 . The device according to  claim 17 , which further comprises a sliding shoe surrounding said cleaning opening and being associated with said first portion of said discharge duct in a vicinity of said cleaning opening. 
     
     
         21 . The device according to  claim 20 , wherein said sliding shoe slides on the clothing. 
     
     
         22 . The device according to  claim 17 , wherein said first portion of said discharge duct has a flow cross section increasing, decreasing, or being consistent in said discharging direction. 
     
     
         23 . The device according to  claim 17 , wherein at least said first portion of said discharge duct has a flow cross section with exclusively rounded corners. 
     
     
         24 . The device according to  claim 17 , wherein at least said first portion of said discharge duct has a flow cross section being tubular or made from a tube. 
     
     
         25 . The device according to  claim 17 , wherein said first portion of said discharge duct has a centerline, and said cleaning opening has a face being inclined relative to said centerline in said discharging direction. 
     
     
         26 . The device according to  claim 25 , wherein said first portion of said discharge duct is tubular, and said face of said cleaning opening diverges from said centerline. 
     
     
         27 . The device according to  claim 17 , wherein said cleaning opening has a shape tapering or steadily tapering or tapering corresponding to a parabolic shape in said discharging direction. 
     
     
         28 . The device according to  claim 17 , wherein said first portion of said discharge duct has a lateral wall, and said at least one cleaning nozzle is disposed in said lateral wall. 
     
     
         29 . The device according to  claim 20 , wherein said at least one cleaning nozzle is disposed in said sliding shoe in a vicinity of said first portion of said discharge duct. 
     
     
         30 . The device according to  claim 26 , wherein said at least one cleaning nozzle causes said at least one cleaning jet to impact a peripheral region adjacent said cleaning zone. 
     
     
         31 . The device according to  claim 17 , wherein said at least one cleaning nozzle includes at least two mutually opposite cleaning nozzles. 
     
     
         32 . The device according to  claim 31 , wherein said at least two mutually opposite cleaning nozzles are offset in the running direction of the clothing. 
     
     
         33 . The device according to  claim 17 , wherein said receptacle opening has a face, and said first portion of said discharge duct has an aperture for delimiting said face of said receptacle opening. 
     
     
         34 . The device according to  claim 33 , wherein said aperture is adjustable. 
     
     
         35 . The device according to  claim 17 , wherein said discharge duct has a further portion downstream of said first portion of said discharge duct, said further portion has a bend, and said discharging direction is directed away from the clothing downstream of said bend. 
     
     
         36 . The device according to  claim 35 , which further comprises propulsion jet nozzles disposed in a vicinity of said bend of said further portion, said propulsion jet nozzles acting in said discharging direction downstream of said bend. 
     
     
         37 . A method for cleaning a clothing continuously revolving in a running direction along a clothing plane in a machine for at least one of producing or processing a paper, cardboard, tissue web or other fibrous web, the method comprising the following steps:
 providing a discharge duct having a first portion;   forming a cleaning opening within the first portion of the discharge duct, the cleaning opening pointing toward the revolving clothing and forming a cleaning zone;   forming a receptacle opening in the first portion of the discharge duct and orienting the receptacle opening counter to the running direction of the revolving clothing;   using at least one cleaning nozzle to generate at least one cleaning jet from a fluid;   orienting the at least one cleaning jet toward the cleaning zone;   directing the at least one cleaning jet onto the clothing to impact the clothing at an angular range of 20°<B<80° relative to the clothing plane in the running direction of the clothing; and   using the cleaning jet to discharge the fluid and dirt being released from the clothing in a discharging direction.