A method for removing overspray from air flow exiting a painting booth may include passing the air flow through an incoherent mass of cleaning elements, which are kept in a stirred condition, so as to release the overspray onto the cleaning elements of the incoherent mass.

A feed center for powder coating material includes a hopper, an extraction duct, and a control valve. The hopper is in fluid communication with a fluidizing pressure source. The extraction duct is in fluid communication with at least one suction source. The control valve connects the extraction duct with an extraction port of the hopper. The control valve is operable between a first position for applying suction from the at least one suction source to the hopper, and a second position providing an exterior opening in at least one of the control valve and the first extraction duct for exhausting pressurized fluid from the hopper and/or collecting at least some of the air and powder that is exhausted from the powder.

A device for the powder coating of objects includes a main body on which an electrode arrangement designed for producing a powder cloud is arranged and on which a metering device is arranged above the electrode arrangement and is designed for the controlled discharge of an amount of a powder onto the electrode arrangement. A powder coating installation is equipped with at least one such device for powder coating.

A discharge apparatus, a forming apparatus, a method of operating the discharge apparatus, and a method of producing a formed body are disclosed herein. In some embodiments, a discharge apparatus is used to collide a particle with a fixed surface to fix the particle to the fixed surface, the discharge apparatus includes a first dispenser for discharging an aerosol containing the particle toward the fixed surface at a first discharge rate, and a second dispenser for discharging a gas toward the fixed surface at a second discharge rate faster than the first discharge rate, and the second dispenser discharges the gas so that the gas at least partially overlaps with the aerosol to accelerate at least a portion of the aerosol toward the fixed surface to fix the particle to the fixed surface.

A painting booth may include: a painting chamber and/or an overspray removal unit. Paint may be sprayed in the painting chamber. The painting chamber may be crossed by an air flow for evacuation of overspray from the painting chamber. When exiting the chamber, the air flow may pass through the overspray removal unit in order to remove the overspray from the air flow. The overspray removal unit may include an incoherent mass of cleaning elements kept in a stirred condition, through which the air flow containing the overspray passes so as to release the overspray onto the cleaning elements. A method for removing overspray from air flow exiting a painting booth may include: passing the air flow through an incoherent mass of cleaning elements which are kept in a stirred condition, so as to release the overspray onto the cleaning elements of the incoherent mass.

A multicolor powder center is provided for supplying at least one powder spraying device with different types of coating powder as required. The multicolor powder center has at least one powder container for receiving coating powder and at least one pump unit comprising at least one powder pump, in particular a dense flow pump or a diluted flow pump. The pressure side of the at least one powder pump is fluidically connected or can be fluidically connected to the powder inlet of a powder spraying device. The pump unit is paired with a docking unit, via which the suction side of the at least one powder pump can be fluidically connected to the interior of the powder container as required.

A multicolor powder center supplies at least one powder spraying device with different types of coating powder as required. The multicolor powder center has at least one powder container for receiving coating powder and at least one pump unit comprising at least one powder pump, in particular a dense flow pump or a diluted flow pump. The pressure side of the at least one powder pump is fluidically connected or can be fluidically connected to the powder inlet of a powder spraying device. The at least one powder container has at least one suction channel which is preferably formed in a suction pipe and which has a suction opening that opens into the interior of the powder container and an opposite discharge opening that opens into a connection, wherein the suction side of the at least one powder pump can be fluidically connected to the connection of the powder container.

A paint spraying apparatus includes a supporting structure, a lower nozzle unit, and an upper nozzle unit. The lower nozzle unit includes lower flexible tubes and nozzles, and ejects powder paint toward an eye portion on a lower side of a stabilizer. The upper nozzle unit includes a first frame and a second frame. First flexible tubes are arranged on the first frame. Second flexible tubes are arranged on the second frame. The upper nozzles eject the powder paint toward an eye portion on an upper side of the stabilizer.

A powder conveying device for coating powder includes a powder conveyor having a powder outlet duct and a powder outlet valve for opening or for closing the powder outlet duct. Additionally, a setpoint value generator for specifying a setpoint opening period of the powder outlet valve, and a sensor for determining the actual opening period of the powder outlet valve are provided. The powder conveying device furthermore includes an evaluation unit for determining the deviation between the setpoint opening period and the actual opening period.

A powder conveying device for the conveying of coating powder to a powder applicator includes a working container that is designed and operable appropriately such that it can be pressurized. The working container further includes a powder inlet and a powder outlet, whereby the powder outlet is connected to a powder outlet valve. In addition, a powder conduit is provided that is connected, on the inlet side, to the powder outlet valve and includes, on the inlet side, an inlet for transport air. The powder conduit can be connected, on the outlet side, to a powder applicator. Moreover, a control is provided that is designed and operable appropriately such that it controls the amount of powder to be conveyed by repeatedly opening and closing the powder outlet valve.