A feed center for powder coating material includes a hopper, an extraction duct, and a control valve. The hopper is connectable in fluid communication with a fluidizing pressure source. The extraction duct is connectable 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 feed center for powder coating material includes a hopper, an extraction duct, and a control valve. The hopper is connectable in fluid communication with a fluidizing pressure source. The extraction duct is connectable 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 color changer has a common feed passage that is connected to two or more inlet passages. The common feed passage can be reverse purged in a direction that is opposite a direction of powder flow through the common feed passage. A valve element seals a supply port that connects the inlet passage to the common feed passage to eliminate dead space and form a near bore line seal. The valve element is an elastic material that expands in response to applied compressed air inside the valve element.

Provided is an operation method for a coating exhaust treatment system that includes a filter configured to filter discharged air discharged from a coating chamber in which a coating object is spray-coated and collect overspray coating material included in the discharged air, and a powder dispersal means configured to disperse powder for forming a filter covering layer in the discharged air and form a filter covering layer made of a layer of the accumulated powder on a surface on the filter as the discharged air passes through the filter, the method including, when the number of repetitions of a first operation reaches a set number while the first operation and a second operation are being repeatedly carried out alternatingly, discarding coating material-containing powder and supplying fresh powder to a first supply tank, and when the number of repetitions of the second operation reaches the set number, discarding the coating material-containing powder and supplying the fresh powder to the second supply tank.

Provided is an operation method for a coating exhaust treatment system that includes a filter configured to filter discharged air discharged from a coating chamber in which a coating object is spray-coated and collect overspray coating material included in the discharged air, and a powder dispersal means configured to disperse powder for forming a filter covering layer in the discharged air and form a filter covering layer made of a layer of the accumulated powder on a surface on the filter as the discharged air passes through the filter, the method including, when the number of repetitions of a first operation reaches a set number while the first operation and a second operation are being repeatedly carried out alternatingly, discarding coating material-containing powder and supplying fresh powder to a first supply tank, and when the number of repetitions of the second operation reaches the set number, discarding the coating material-containing powder and supplying the fresh powder to the second supply tank.

The powder coating booth according to the invention comprises booth walls (13-18) and a roof (30) which can be lowered between the booth walls (13-18), wherein a gap (60) is provided between the roof (30) and the booth walls (13-18). The roof (30) has compressed air nozzles (70) for spraying the booth walls (13-18). In addition, a supporting device (33-36) is provided, which supports the roof (30). In at least one of the booth walls (13 18) a vertical slot (61) is provided through which the supporting device (33-36) protrudes into the booth (1) and in which the supporting device (33-36) is movable. In addition, the booth comprises a bottom (19) with a suction (5, 6), which is connectable with the suction inlet (2.1) of a cyclone separator (2) via a suction pipe (7).

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.

The invention is directed to a lightweight apparatus for the redirection and capture of paint overspray and airborne particulates at a surface being painted. The apparatus has a top tubing arrangement, and a bottom tubing arrangement, and blowers that provide air to both tubing arrangements. The invention also has an enclosure having a top opening and a bottom opening. The bottom tubing arrangement is positioned at the bottom opening. The bottom tubing arrangement includes a plurality of perforations creating an airflow that provides a pneumatic seal between the apparatus and the surface being painted, preventing the escape of paint overspray. The top tubing arrangement also includes a plurality of perforations that create an airflow that prevents the escape of paint overspray from the enclosure. Entrained paint overspray and airborne particles within the enclosure are captured by a filter within the enclosure.

A cyclone comprises a second or lower portion that is pivotable with respect to a first or upper portion about an articulation between a first position and a second position; the second portion being aligned with the first portion along a first or vertical axis when the second portion is in the first position, and the second portion being aligned on a second axis that is different from the first axis when the second portion is moved from the first position to the second position. In various additional embodiments, the second axis may be normal to the first axis, for example, in the first position the lower portion is horizontal and in the first position the lower portion is vertical and aligned with the upper portion. The second position may be used as a cleaning position. When the lower portion is pivoted away from the upper portion, the vortex is interrupted. In the second position, the lower portion may also interface with a suction mechanism.

An overspray spray capture structure integrated into a paint spray operation integrates at least one reception surface for receiving an overspray of the spray coating operation. The overspray is communicated through a merging location established between the receiving surfaces and adapted to being removed or recycled. The at least one reception surface further includes first and second oriented reception surfaces not limited to a pair of horizontal and vertical closed loop belt curtains which are traversable supported about a pair of spaced apart rotating shafts. The first and second reception surfaces can include traversing paper rolls for capturing the overspray therebetween at the merging location. Other variants include water curtain or vacuum removal assist assemblies for removing the overspray prior to it setting.