Painting installation and method for operating a painting installation

Abstract

In order to provide a painting installation for painting workpieces, which is compact in configuration and allows a reliable separation of paint overspray from a raw gas flow, the painting installation includes the following: a painting booth, in which the workpieces are paintable with paint; a conveying device, by means of which the workpieces to be painted are conveyable in a conveying direction through the painting booth; a separation and/or filter system for cleaning a raw gas flow, which is leaving the painting booth and has absorbed paint overspray in the painting booth, wherein the separation and/or filter system includes at least one filter device for separating the paint overspray from the raw gas flow; and at least one clean gas line for a clean gas flow, which is obtainable by cleaning the raw gas flow by means of the at least one filter device.

1 - 17 . (canceled) 
     
     
         18 . A painting installation for painting workpieces, comprising:
 a painting booth, in which the workpieces are paintable with paint and conveyable in a conveying direction through the painting booth;   a filter system for cleaning a raw gas flow, which is leaving the painting booth and has absorbed paint overspray in the painting booth, wherein the filter system comprises at least one filter for separating the paint overspray from the raw gas flow; and   at least one clean gas line positioned to receive a clean gas flow exiting the at least one filter.   
     
     
         19 . The painting installation according to  claim 18 , wherein the filter system comprises at least one clean gas line which is arranged, at least in portions, below a raw gas shaft. 
     
     
         20 . The painting installation according to  claim 18 , wherein the filter system comprises a clean gas line, which crosses and/or traverses a raw gas shaft. 
     
     
         21 . The painting installation according to  claim 18 , wherein at least two filters, preferably all the filters of the filter system, are arranged on the same side of a raw gas shaft with respect to a vertical longitudinal centre plane of the painting booth. 
     
     
         22 . The painting installation according to  claim 18 , wherein at least one clean gas line extends through below the raw gas shaft and runs here substantially transversely to the conveying direction. 
     
     
         23 . The painting installation according to  claim 18 , wherein the filter system comprises at least one clean gas collecting channel, into which at least two clean gas lines of the filter system open. 
     
     
         24 . The painting installation according to  claim 23 , wherein at least one clean gas collecting channel, on the one hand, and at least two filters, on the other hand, are arranged on mutually opposing sides of the filter system with respect to a vertical longitudinal centre plane of the painting booth. 
     
     
         25 . The painting installation according to  claim 18 , wherein at least one policing filter is provided in at least one clean gas line in order to prevent an undesired penetration of auxiliary filter material and/or overspray particles into the regions of the filter system to be kept clean in the event of damage to a filter. 
     
     
         26 . The painting installation according to  claim 18 , wherein at least one filter is configured to be walked on, so that a person can enter an interior of the at least one filter. 
     
     
         27 . The painting installation according to  claim 18 , wherein a lower end of the raw gas shaft adjoins at least one inlet channel of at least one filter of the filter system. 
     
     
         28 . The painting installation according to  claim 18 , wherein at least one clean gas line is arranged, at least in portions, within an outer contour of at least one filter. 
     
     
         29 . The painting installation according to  claim 18 , wherein the filter system comprises at least one clean gas collecting channel, into which at least two clean gas lines of the filter system open, wherein the at least one clean gas collecting channel extends at least approximately parallel to the conveying direction. 
     
     
         30 . The painting installation according to  claim 18 , wherein the filter system comprises at least one raw gas shaft, which is arranged substantially centrally below the painting booth with respect to a horizontal direction running perpendicular to the conveying direction. 
     
     
         31 . The painting installation according to  claim 30 , wherein an inflow opening of the raw gas shaft is arranged substantially centrally below the painting booth with respect to the horizontal direction running perpendicular to the conveying direction. 
     
     
         32 . The painting installation according to  claim 18 , wherein the filter system comprises at least one clean gas line, at least one fan, at least one conditioning device and/or at least one clean gas collecting channel, which are arranged within a vertical projection of the painting booth below the painting booth. 
     
     
         33 . The painting installation according to  claim 18 , wherein the filter system comprises at least one filter module, which comprises at least one filter, at least one clean gas line, at least one conditioning device and/or at least one fan. 
     
     
         34 . The painting installation, in particular according to  claim 18 , wherein at least one filter for the separation of paint overspray from the raw gas flow containing overspray particles, comprises:
 a housing, which delimits a raw gas chamber of the filter and in which at least one filter element of the filter is arranged;   at least one inlet channel for letting the raw gas flow into the raw gas chamber of the filter; and   at least one auxiliary filter material introduction mechanism for introducing auxiliary filter material into the raw gas flow.   
     
     
         35 . The painting installation according to  claim 34 , wherein at least one auxiliary filter material introduction mechanism comprises a treatment device for the mechanical treatment of auxiliary filter material and/or a mixture of auxiliary filter material and overspray particles. 
     
     
         36 . The painting installation according to  claim 34 , wherein at least one auxiliary filter material introduction mechanism comprises a flow guidance device for influencing the flow of the raw gas flow, which device comprises at least one flow element, which is variable with respect to configuration and/or arrangement and/or orientation. 
     
     
         37 . The painting installation according to  claim 34 , wherein the filter comprises a control device, by means of which an introduction capacity of the at least one auxiliary filter material introduction mechanism is configured to be controlled and/or regulated. 
     
     
         38 . The painting installation according to  claim 18 , wherein at least one filter of the filter system comprises at least one flow guidance device, which is arranged in the raw gas chamber of the filter and by means of which the raw gas flow flowing through at least one inlet channel of the filter into the raw gas chamber is configured to be influenced. 
     
     
         39 . The painting installation according to  claim 18 , wherein the filter system comprises a conditioning device, which comprises a cooling device, a humidifying device and/or a drop-separation device as well as a common liquid handling system for the cooling device, the humidifying device and/or the drop-separation device. 
     
     
         40 . A method for operating a painting installation, comprising the following method steps:
 conveying the workpieces in a conveying direction through the painting booth by means of a conveying device and painting the workpieces in the painting booth;   feeding a raw gas flow from the painting booth of the painting installation, which has absorbed paint overspray in the painting booth, to a filter system;   separating paint overspray from the raw gas flow loaded with overspray particles by means of at least one filter of the filter system, so that a clean gas flow is obtained,   
       wherein auxiliary filter material and/or a mixture of auxiliary filter material and overspray particles is loosened by means of at least one auxiliary filter material introduction mechanism, wherein at least a part of the raw gas flow is introduced into at least one auxiliary filter material receiving container of at least one filter and 
       wherein the loosened auxiliary filter material and/or the loosened mixture of auxiliary filter material and overspray particles is entrained by the raw gas flow and thereby mixes with the raw gas of the raw gas flow. 
     
     
         41 . The method according to  claim 40 , wherein the clean gas flow is guided away by means of at least one clean gas line, which is arranged, at least in portions, within an outer contour of at least one filter and wherein at least one clean gas line is guided through below a raw gas shaft of the painting installation and/or wherein at least one clean gas line traverses the raw gas shaft. 
     
     
         42 . The method according to  claim 40 , wherein the raw gas flow is guided by way of at least one inlet channel of at least one filter into a raw gas chamber of the at least one filter, auxiliary filter material being fed to the raw gas flow by means of at least one auxiliary filter material introduction mechanism.