Abstract: A method for extracting process air loaded with overspray from a coating plant, which includes leading overspray picked up by an air stream as process air along a flow path to a conditioning device. The process air is led on the flow path through at least one replaceable flow module having an inlet opening and an outlet opening, on the inner surfaces of which overspray can be deposited and, after a limiting loading with overspray has been reached, can be replaced by an unloaded flow module. An apparatus for extracting process air loaded with overspray having at least one replaceable flow module having an inlet and an outlet opening arranged in the flow path of the process air. On the inner surfaces of the flow module, overspray can be deposited. The flow module can be replaced with an unloaded flow module after a limiting loading with overspray is reached.

Abstract: A method and system for treating objects, the objects are conveyed through a treatment cabin and treated in a treatment space. During treatment solvents are released. Cabin air flows through the treatment space, which absorbs solvents and is discharged as process air from the treatment space. At least one proportion of the process air charged with solvent is recycled in the treatment space and at least one proportion of the process air can be discharged as exhaust air. Fresh air is fed to the treatment space, which contributes to the cabin air, such that the cabin air includes a circulating air proportion and a fresh air proportion. The solvent concentration is captured in the cabin air and/or in the process air and/or in the exhaust air and the circulating air proportion and the fresh air proportion of the cabin air are regulated as a function of the captured solvent concentration.

Abstract: A system for tempering vehicle bodies having a housing, a tempering tunnel in the housing, at least one pressure chamber in a housing and separated by a wall from the tempering tunnel, a plurality of nozzles in the wall and an air tempering unit which introduces tempered air into the pressure chamber in such a way that the tempered air flows in through the nozzles into the tempering tunnel and acts on the vehicle body. At least one nozzle unit is oriented and has a range that is wide enough, such that the air stream exiting the nozzle unit passes through an opening in the vehicle body on the side facing the nozzle unit and acts on an inner face of the vehicle body on the opposite side.

Abstract: An electrical field is generated between an application device and an object to be coated. At least one corona electrode associated with the application device is connected to ground, and at least one counter electrode associated with the object is connected at least at intervals to a positive potential. A system for electrostatically coating objects having an application device coating material, and an electrical field device having a high-voltage source which generates an electrical field between the application device and an object to be coated. The field device comprises at least one corona electrode associated with the application device, and at least one counter electrode associated with the object, wherein, during the operation of the device, the at least one corona electrode is connected to ground, and the at least one counter electrode is connected at least at intervals to a positive potential.

Abstract: A system for painting objects, in particular vehicle bodies or add-on parts, comprising a spray booth in which a paint can be applied to the objects. A fluid flow, which receives overspray and possibly solvent arising during the painting process, passes through the spray booth from the top down. A recovery system for recovering the overspray and possibly the solvent comprises at least one substantially vertical pipe, through which the fluid led out of the spray booth and laden with overspray and possibly solvent can flow and the surface of which is provided with elevations and/or recesses in such a way that eddies form in the fluid flowing through the pipe and the paint overspray is deposited onto the circumferential wall and flows downward out of the pipe.

Abstract: A method and system for treating objects, the objects are conveyed through a treatment cabin and treated in a treatment space. During treatment solvents are released. Cabin air flows through the treatment space, which absorbs solvents and is discharged as process air from the treatment space. At least one proportion of the process air charged with solvent is recycled in the treatment space and at least one proportion of the process air can be discharged as exhaust air. Fresh air is fed to the treatment space, which contributes to the cabin air, such that the cabin air includes a circulating air proportion and a fresh air proportion. The solvent concentration is captured in the cabin air and/or in the process air and/or in the exhaust air and the circulating air proportion and the fresh air proportion of the cabin air are regulated as a function of the captured solvent concentration.

Abstract: A method for separating overspray from the cabin exhaust air of coating systems, in particular of painting systems, which is laden with overspray, the overspray is taken up by an air flow and conveyed to an electrostatically operating separating device. There, the bulk at least of the solids is separated from the overspray at at least one separating surface. An electrically conductive material or material mixture is used as a separating agent, which is applied to the at least one separating surface of the separating device and at the operating temperature of the separating device has a wax-like consistency. Also a separating device with such a wax-like material and a system for coating articles.

Abstract: A method and device for separating overspray from the cabin exhaust air of coating systems which is laden with overspray, wherein the overspray is taken up by an air flow and conveyed to an electrostatically operating separating device. There, the bulk at least of the solids is separated from the overspray at a separating area of at least one separating surface. A cohesive material web is used as a separating agent, which is disposed at least partly along the separating area of the at least one separating surface and during operation of the separating device is electrically conductive at least in the separating area of the at least one separating surface.

Abstract: A method for extracting process air loaded with overspray from a coating plant, which includes leading overspray picked up by an air stream as process air along a flow path to a conditioning device. The process air is led on the flow path through at least one replaceable flow module having an inlet opening and an outlet opening, on the inner surfaces of which overspray can be deposited and, after a limiting loading with overspray has been reached, can be replaced by an unloaded flow module. An apparatus for extracting process air loaded with overspray having at least one replaceable flow module having an inlet and an outlet opening arranged in the flow path of the process air. On the inner surfaces of the flow module, overspray can be deposited. The flow module can be replaced with an unloaded flow module after a limiting loading with overspray is reached.

Abstract: A device for separating paint overspray from the cabin exhaust air of painting systems which is laden with overspray having at least one separating surface, on which the cabin exhaust air can be guided along and which is electrically conducting and connected to a pole of a high voltage source. An electrode device arranged in the air stream is associated with the separating surface and connected to the other pole of the high voltage source. Paint overspray is transported away from the separating surface by an electrically conducting separating fluid, which can be fed to the separating surface and flows over the separating surface so that a large part at least of the solids pass from the cabin exhaust air flowing past into the separating fluid.

Abstract: A device for separating overspray from the cabin exhaust air of painting systems includes at least one separating surface, on which the exhaust air is guided and which is connected to a pole of a high voltage source. An electrode device arranged in the air stream is associated with the separating surface and connected to the other pole of the high voltage source. The separated paint overspray is transported away from the separating surface with a separating fluid, which flows over the separating surface-from top to bottom. A discharge device having a channel open at the top is present, from which the separating fluid exits along the longitudinal extension of the discharge device when the level of the separating fluid in the channel exceeds an exit level, and reaches the separating surface such that the separating fluid flows downward on the separating surface as a substantially adhering layer.

Abstract: What is described is a process and an installation for drying articles, in particular painted vehicle bodies, in which the articles are moved through a drying zone in which they are hardened in an inert-gas atmosphere. Inert gas is taken from the drying zone constantly or intermittently and is first of all conducted along a first face which is at a first temperature at which higher-boiling contaminants condense out. The condensate that forms in the process is discharged. After that, the inert gas which has been pre-cleaned in this way is conducted along at least one second face which is at a lower temperature than the first face. Lower-boiling contaminants are precipitated at this point. These condensates, too, are then discharged. This process and installation work more favorably, energy-wise, and with higher cleaning efficiency than known processes and installations of a similar type.

Abstract: A system for tempering vehicle bodies having a housing, a tempering tunnel in the housing, at least one pressure chamber in a housing and separated by a wall from the tempering tunnel, a plurality of nozzles in the wall and an air tempering unit which introduces tempered air into the pressure chamber in such a way that the tempered air flows in through the nozzles into the tempering tunnel and acts on the vehicle body. At least one nozzle unit is oriented and has a range that is wide enough, such that the air stream exiting the nozzle unit passes through an opening in the vehicle body on the side facing the nozzle unit and acts on an inner face of the vehicle body on the opposite side.

Abstract: In a method for removing solids from overspray produced when painting objects, the overspray is absorbed by an air flow and is conducted to a deposition surface, across which a deposition liquid flows and where a large part of at least the solids is transferred into the deposition liquid, is discharged by said deposition liquid, and is removed from the liquid by means of a deposition process. A deposition liquid is used and disclosed which comprises a detackifying medium and an optional suspending fluid, paint overspray particles being detackified using the detackifying medium.

Abstract: A system for painting objects, in particular vehicle bodies or add-on parts, comprising a spray booth in which a paint can be applied to the objects. A fluid flow, which receives overspray and possibly solvent arising during the painting process, passes through the spray booth from the top down. A recovery system for recovering the overspray and possibly the solvent comprises at least one substantially vertical pipe, through which the fluid led out of the spray booth and laden with overspray and possibly solvent can flow and the surface of which is provided with elevations and/or recesses in such a way that eddies form in the fluid flowing through the pipe and the paint overspray is deposited onto the circumferential wall and flows downward out of the pipe.

Abstract: An electrical field is generated between an application device and an object to be coated. At least one corona electrode associated with the application device is connected to ground, and at least one counter electrode associated with the object is connected at least at intervals to a positive potential. A system for electrostatically coating objects having an application device coating material, and an electrical field device having a high-voltage source which generates an electrical field between the application device and an object to be coated. The field device comprises at least one corona electrode associated with the application device, and at least one counter electrode associated with the object, wherein, during the operation of the device, the at least one corona electrode is connected to ground, and the at least one counter electrode is connected at least at intervals to a positive potential.

Abstract: A method for separating overspray from the cabin exhaust air of coating systems, in particular of painting systems, which is laden with overspray, the overspray is taken up by an air flow and conveyed to an electrostatically operating separating device. There, the bulk at least of the solids is separated from the overspray at at least one separating surface. An electrically conductive material or material mixture is used as a separating agent, which is applied to the at least one separating surface of the separating device and at the operating temperature of the separating device has a wax-like consistency. Also a separating device with such a wax-like material and a system for coating articles.

Abstract: A method and device for separating overspray from the cabin exhaust air of coating systems which is laden with overspray, wherein the overspray is taken up by an air flow and conveyed to an electrostatically operating separating device. There, the bulk at least of the solids is separated from the overspray at a separating area of at least one separating surface. A cohesive material web is used as a separating agent, which is disposed at least partly along the separating area of the at least one separating surface and during operation of the separating device is electrically conductive at least in the separating area of the at least one separating surface.

Abstract: In order to ensure consistently good maceration of biological material in an electroporation reactor, it is proposed to monitor the conductivity of the mixture therein and to detect any arcing which occurs therein. The results of such monitoring are used to modify the operating voltage of the electroporation reactor and/or the composition of the mixture located in the reactor channel.

Abstract: In a method for removing solids from overspray produced when painting objects, the overspray is absorbed by an air flow and is conducted to a deposition surface, across which a deposition liquid flows and where a large part of at least the solids is transferred into the deposition liquid, is discharged by said deposition liquid, and is removed from the liquid by means of a deposition process. A deposition liquid is used and disclosed which comprises a detackifying medium and an optional suspending fluid, paint overspray particles being detackified using the detackifying medium.