Painting installation and method for operating a painting installation

Patent metadata

Field	Value
Publication number	US-9364845-B2
Application number	US-201414157092-A
Country	US
Kind code	B2
Filing date	Jan 16, 2014
Priority date	Jul 27, 2011
Publication date	Jun 14, 2016
Grant date	Jun 14, 2016

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.

First claim

That which is claimed:

1. 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 two filters for separating the paint overspray from the raw gas flow and at least two clean gas lines, each clean gas line positioned to receive a clean gas flow exiting at least one filter
wherein the filter system comprises at least one clean gas collecting channel positioned to receive clean gas flow from the at least two clean gas lines, wherein the entire at least one clean gas collecting channel, on the one hand, and the entire at least two filters, on the other hand, being arranged on mutually opposing sides of the filter system with respect to a vertical longitudinal center plane of the painting booth.

2. The painting installation according to claim 1 , wherein the filter system comprises a clean gas line, which at least one of crosses and traverses a raw gas shaft, wherein raw gas flows around the clean gas line during operation of the painting installation.

3. The painting installation according to claim 2 , wherein the filter system comprises at least one of the following components: at least one clean gas line, at least one fan, at least one conditioning device comprising one or more of a heater, a cooler, humidifier, and a dehumidifier and configured to heat, cool, humidify or dehumidify a clean gas flow, and at least one gas collecting channel, these components being arranged within a vertical projection of the painting booth below the painting booth.

4. The painting installation according to claim 1 , 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.

5. The painting installation according to claim 1 , wherein the filter system comprises at least one clean gas line which is arranged, at least in portions, below a raw gas shaft.

6. The painting installation according to claim 1 , wherein the speed of raw gas flow flowing into the raw chamber of a filter is increasable by means of at least one flow element of at least one flow guidance device.

7. The painting installation according to claim 1 , wherein at least one clean gas line is arranged, at least in portions, within an outer contour of at least one filter.

8. The painting installation according to claim 1 , wherein the filter system comprises at least one filter module, which comprises at least one of the following components: at least one filter, at least one clean gas line, at least one conditioning device comprising one or more of a heater, a cooler, a humidifier, and a dehumidifier and configured to heat, cool, humidify or dehumidify a clean gas flow, and at least one fan.

9. The painting installation according to claim 1 , wherein at least one filter for the separation of paint overspray from a 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, wherein at least one clean gas line of the filter is arranged, at least in portions, within an outer contour of at least one filter and wherein at least one safety filter is provided in at least one clean gas line.

10. The painting installation according to claim 9 , wherein at least one auxiliary filter material introduction mechanism comprises a treatment device for the mechanical treatment of at least one of auxiliary filter material and a mixture of auxiliary filter material and overspray particles.

11. The painting installation according to claim 9 , wherein the 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 at least one of configuration and arrangement and orientation and is configured as at least one of an adjustably and pivotably arranged guide plate.

12. The painting installation according to claim 9 , 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 regulated.

13. The painting installation according to claim 1 , 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.

14. The painting installation according to claim 1 , wherein the filter system comprises a conditioning device comprising one or more of a cooler, a humidifier, and a dehumidifier and configured to cool, humidify or dehumidify a clean gas flow, as well as a common liquid handling system for at least one of the cooler, humidifier, and dehumidifier.

Assignees

• Duerr Systems Gmbh

Inventors

• Holler Sebastian
• Scheerer Jan
• Holzheimer Jens
• Wieland Dietmar
• Baitinger Michael
• Tobisch Wolfgang

Classifications

• B01D46/0036

  by adsorption or absorption · CPC title

• B05B14/435

  with means for cleaning the filters by gas flow, e.g. blasts of air · CPC title

• B01D2273/12

  Influencing the filter cake during filtration using filter aids · CPC title

• B01D46/0041

  for feeding · CPC title

• B05B14/437 Primary

  with means for introducing solid material into the air charged with excess material for preventing clogging of the filter · CPC title