A recirculating powder applicator includes an applicator body having an inlet on an upstream surface and an outlet on a downstream surface, wherein the inlet and outlet define a passage that extends transversely through the thickness of the applicator body, a powder conduit, an air inlet, an exhaust aperture located on one of the upstream or downstream surfaces, and a circulation chamber located on the interior of the applicator body. The powder conduit and air inlet are in fluid communication with the passage and the passage is in fluid communication with the circulation chamber. A method of applying powder to a substrate during a continuous process includes using a recirculating powder applicator.

A recirculating powder applicator includes an applicator body having an inlet on an upstream surface and an outlet on a downstream surface, wherein the inlet and outlet define a passage that extends transversely through the thickness of the applicator body, a powder conduit, an air inlet, an exhaust aperture located on one of the upstream or downstream surfaces, and a circulation chamber located on the interior of the applicator body. The powder conduit and air inlet are in fluid communication with the passage and the passage is in fluid communication with the circulation chamber. A method of applying powder to a substrate during a continuous process includes using a recirculating powder applicator.

The disclosure relates to an operating method for a coating system, in particular for a painting system, for coating components (2), in particular motor vehicle body components (2), having the following steps: conveying, by means of a conveying device (3), the components (2) to be coated in a conveying direction through a coating booth (1), coating the components (2) in the coating booth (1) with a coating product by means of an application device (17-19) which applies a spray jet of the coating product, a portion of the applied coating product being deposited on the components (2) to be coated while another portion of the applied coating product floats into the interior of the coating booth (1) as an excess coating product mist (21), and reducing the excess coating product mist (21) from the interior of the booth by means in addition to or other than the downwardly directed air flow generated by a filter ceiling. In addition, the disclosure includes a correspondingly designed coating system.

A recirculating powder applicator includes an applicator body having an inlet on an upstream surface and an outlet on a downstream surface, wherein the inlet and outlet define a passage that extends transversely through the thickness of the applicator body, a powder conduit, an air inlet, an exhaust aperture located on one of the upstream or downstream surfaces, and a circulation chamber located on the interior of the applicator body. The powder conduit and air inlet are in fluid communication with the passage and the passage is in fluid communication with the circulation chamber. A method of applying powder to a substrate during a continuous process includes using a recirculating powder applicator.

A recirculating powder applicator includes an applicator body having an inlet on an upstream surface and an outlet on a downstream surface, wherein the inlet and outlet define a passage that extends transversely through the thickness of the applicator body, a powder conduit, an air inlet, an exhaust aperture located on one of the upstream or downstream surfaces, and a circulation chamber located on the interior of the applicator body. The powder conduit and air inlet are in fluid communication with the passage and the passage is in fluid communication with the circulation chamber. A method of applying powder to a substrate during a continuous process includes using a recirculating powder applicator.

A powder coating booth includes booth walls and a roof which can be lowered between the booth walls, wherein a gap is provided between the roof and the booth walls. The roof has compressed air nozzles for spraying the booth walls. In addition, a supporting device is provided, which supports the roof. In at least one of the booth walls a vertical slot is provided through which the supporting device protrudes into the booth and in which the supporting device is movable. In addition, the booth includes a bottom (19) with a suction, which is connectable with the suction inlet of a cyclone separator via a suction pipe.

A powder coating booth includes booth walls and a roof which can be lowered between the booth walls, wherein a gap is provided between the roof and the booth walls. The roof has compressed air nozzles for spraying the booth walls. In addition, a supporting device is provided, which supports the roof. In at least one of the booth walls a vertical slot is provided through which the supporting device protrudes into the booth and in which the supporting device is movable. In addition, the booth includes a bottom (19) with a suction, which is connectable with the suction inlet of a cyclone separator via a suction pipe.

An apparatus for separating particles from an air stream, the apparatus having an inlet region for the waste air stream, an outlet region for the waste air stream, a separating device arranged along the waste air stream, and at least one electrode arrangement which is connected to a high voltage source, wherein a charging region having one or more electrodes is provided to form a layer enriched with electrical charges, and wherein a separating region having separating surfaces is provided, which is subordinate to the charging region. The invention also relates to a method for separating particles from the waste air stream of a coating booth, wherein the waste air stream through a charging region in which particles of the waste air stream are charged, and the waste air stream after leaving the charging region flows through a separating region in which charged particles are deposited on separating surfaces.

An apparatus for separating particles from an air stream, the apparatus having an inlet region for the waste air stream, an outlet region for the waste air stream, a separating device arranged along the waste air stream, and at least one electrode arrangement which is connected to a high voltage source, wherein a charging region having one or more electrodes is provided to form a layer enriched with electrical charges, and wherein a separating region having separating surfaces is provided, which is subordinate to the charging region. The invention also relates to a method for separating particles from the waste air stream of a coating booth, wherein the waste air stream through a charging region in which particles of the waste air stream are charged, and the waste air stream after leaving the charging region flows through a separating region in which charged particles are deposited on separating surfaces.

The present invention is a nozzle assembly having a nozzle main body including an ejection material suction port and an ejection port which ejects the ejection material with the compressed air, and an air nozzle which jets the compressed air into the nozzle main body. The nozzle main body includes a mixing chamber which mixes the ejection material with the compressed air, a first pathway directed from the ejection material suction port toward the mixing chamber, and a second pathway directed from the mixing chamber toward the ejection port. The air nozzle includes a compressed air jet portion and a third pathway directed to the compressed air jet portion, and the third pathway is inserted into the nozzle main body. The compressed air jet portion of the air nozzle is provided with a flow contracting portion having an opening.