Spray system for cleaning wires

Abstract

A method for cleaning apparatus parts on a binder/glue application apparatus in connection with applying binder/glue on shaped fibre products and an apparatus for application of binder/glue on shaped fibre products. An aqueous solution of release agent to selected apparatus parts is applied during operation. Release agent solution is applied to the external side of an endless wire. Behind the application area, a suction slot is provided in which excess release agent solution is collected and conducted further on, preferably to a pipe system, a ventilator and a suction box. This release agent solution settles on threads of the wire so that fibres and excess glue do not adhere to the wire. The collected release agent solution is brought into a pipe system via a ventilator into the suction box system of the spray-wire, thereby coating the pipe system, ventilator and suction box internally.

1 . Method for cleaning apparatus parts in a binder/glue application apparatus in connection with applying binder/glue on shaped fibre products, where the conveying speed is in the range between 100 m/min and 1000 m/min, where selected apparatus parts are applied an aqueous solution of release agent during operation of the plant and without reduction of capacity, where the release agent solution is applied to the external side of an endless wire, wherein behind the application area there is provided a suction slot in which excess release agent solution is collected and conducted further on to a pipe system, a ventilator and a suction box.  
     
     
         2 . Method according to  claim 1 , wherein the release agent solution consists of water mixed with release agent, where the mix ratio preferably is 1-10%, and where the release agent preferably is food certified.  
     
     
         3 . Method according to  claim 1 , wherein the excess release agent solution collected in the suction slot is admixed with sucked in air to an air-release agent mixture and conducted through pipes and ventilator, from where it is brought to distribution at the internal surfaces of the suction box via nozzles adapted therefor, whereby the said apparatus parts are continuously coated with a release agent film.  
     
     
         4 . Method according to  claim 1 , wherein a release agent solution is brought to distribution at the internal surfaces of the suction box via nozzles adapted therefor, where the nozzles are communicating with a container and a pump, whereby the said apparatus parts are continuously coated with a release agent film.  
     
     
         5 . Method according to  claim 1 , wherein the wire is cleaned during operation and is subsequently applied continuously with an aqueous solution of release agent.  
     
     
         6 . Binder/glue application apparatus for applying binder/glue on shaped fibre products, where the conveying speed is in the range between 100 m/min and 1000 m/min, wherein said apparatus comprising a number of application nozzles for applying under pressure an aqueous solution of a release agent to the external side of the wire  2 ) during operation and from there to a pipe system, a ventilator and a suction box, and where behind the application area and in the entire width of the wire there is provided a suction slot in which excess release agent solution is collected and conducted further on via a pipe connection with integrated suction/blowing ventilator to the suction box of the plant as an air-release agent mixture.  
     
     
         7 . Binder/glue application apparatus according to  claim 6 , wherein the suction box is made with distributing means for regular distribution of the air-release agent mixture at the internal surfaces of the suction box, where the distribution means are preferably disposed immediately under the wire at the end faces of the suction box transversely of the wire, where the air contains release agent, and where the distribution means are communicating with a pipe system from the suction slot.  
     
     
         8 . Binder/glue application apparatus according to  claim 6 , wherein the suction box is made with distributing means for regular distribution of a release agent mixture at the internal surfaces of the suction box, where the distribution means preferably are disposed immediately under the wire at the end faces of the suction box transversely of the wire, where the distributing means communicates with a container and a pump.  
     
     
         9 . Binder/glue application apparatus according to  claim 6 , wherein the suction box ( 16 ) is additionally provided with at least one distributing means ( 40 ), where the said further distributing means ( 40 ) is disposed immediately under the wire ( 12 ) and transversely of the wire between the end faces ( 44 ) of the suction box.  
     
     
         10 . Binder/glue application apparatus according to  claim 6 , wherein the wire runs through a cleaning station before passing the application station for the release agent mixture.  
     
     
         11 . Binder/glue application apparatus according to  claim 6 , wherein the wire is an independent endless wire that is only used at the application process for binder/glue.  
     
     
         12 . Binder/glue application apparatus according to  claim 6 , wherein the wire is and endless wire used in the application process of binder/glue and at preceding and/or succeeding processes.