Surface treatment device and method for operating a surface treatment device

Patent metadata

Field	Value
Publication number	US-9643119-B2
Application number	US-201314434054-A
Country	US
Kind code	B2
Filing date	Oct 8, 2013
Priority date	Oct 11, 2012
Publication date	May 9, 2017
Grant date	May 9, 2017

Abstract

In order to provide a surface treatment device for treating a surface of a workpiece which is operable simply and safely, it is proposed that the surface treatment device include the following: a work region in which the surface of the workpiece is treatable; a flow guiding device by means of which a gas stream is guidable through the work region; a solvent separating device for separating off solvent from the gas stream that is guided through the work region, wherein the solvent separating device is configured to be put selectively in a separating condition or in a rest condition, wherein, in the separating condition, the solvent separating device separates off solvent from the gas stream.

First claim

The invention claimed is:

1. A surface treatment device for treating a surface of a workpiece, including:
a work region in which the surface of the workpiece is treatable;
a flow guiding device by means of which a gas stream is guidable through the work region;
a solvent separating device for separating off solvent from the gas stream that is guided through the work region,
wherein the solvent separating device is configured to be put selectively in a separating condition or in a rest condition, wherein, in the separating condition, the solvent separating device separates off solvent from the gas stream,
wherein by means of an intake air device of the surface treatment device, an intake air stream is feedable to the flow guiding device, and
wherein by means of the solvent separating device, solvent is releasable into at least one of the intake air stream or a circulating air stream that is guided through the work region.

2. The surface treatment device according to claim 1 , wherein the gas stream is feedable again by means of the flow guiding device to the same work region and/or to a further work region of the surface treatment device.

3. The surface treatment device according to claim 1 , wherein the surface treatment device includes a particle separating device which takes the form of a regenerable filter device, for separating off particles from a gas stream that is guided through a work region and is loaded with particles.

4. The surface treatment device according to claim 1 , wherein the surface treatment device includes a control device by means of which the surface treatment device is selectively operable in a treatment operation, in which workpieces are treated, or in a rest operation, in which no workpieces are treated,
wherein, in the treatment operation of the surface treatment device, the solvent separating device is in the rest condition, and
wherein, in the rest condition of the surface treatment device, the solvent separating device is in the separating condition, with the result that the solvent separating device separates solvent off from the gas stream that is guided through the work region.

5. The surface treatment device according to claim 1 , wherein the solvent separating device is a solvent temporary storage device by means of which solvent which, in a treatment operation of the surface treatment device, is contained in a gas stream that is to be fed to a work region is separable from the gas stream in a rest condition of the surface treatment device.

6. The surface treatment device according to claim 1 , wherein the solvent separating device is a solvent temporary storage device by means of which solvent which, in a rest operation of the surface treatment device, is taken up in the solvent separating device is releasable into a gas stream that is to be fed to a work region in a treatment operation of the surface treatment device.

7. The surface treatment device according to claim 1 , wherein the solvent separating device includes an adsorption device for the adsorption of solvent, a condensation device for condensing out solvent and/or a combustion device for the thermal conversion of solvent.

8. The surface treatment device according to claim 1 , wherein the work region is a coating region, a drying region and/or a monitoring region for coating, drying, monitoring and/or post-treatment of workpieces.

9. The surface treatment device according to claim 1 , wherein the surface treatment device includes a conditioning device by means of which an intake air stream and/or a gas stream that is guided through a work region are conditionable before being fed to a work region.

10. A method for operating a surface treatment device, wherein:
a surface of a workpiece is treated in a work region of the surface treatment device;
a gas stream is guided through the work region;
a solvent separating device for separating solvent off from the gas stream that is guided through the work region is selectively put in a separating condition or in a rest condition,
wherein, in the separating condition, the solvent separating device separates off solvent from the gas stream,
wherein by means of an intake air device of the surface treatment device, an intake air stream is feedable to the flow guiding device, and
wherein by means of the solvent separating device, solvent is releasable into at least one of the intake air stream or a circulating air stream that is guided through the work region.

11. The method according to claim 10 , wherein the gas stream that is guided through the work region is fed again to the same work region or to a further work region of the surface treatment device.

12. The method according to claim 10 , wherein, in a treatment operation of the surface treatment device, in which workpieces are treated, the solvent separating device is in the rest condition.

13. The method according to claim 10 , wherein, in a rest operation of the surface treatment device, in which no workpieces are treated, the solvent separating device is in the separating condition, in which the solvent separating device separates solvent off from the gas stream that is guided through the work region.

14. The method according to claim 10 , wherein the gas stream that is guided through the work region and/or that is to be fed to the same work region or a further work region is conditioned in respect of its air humidity and/or in respect of its temperature in a rest operation of the surface treatment device, in which no workpieces are treated, before and/or after the gas stream is fed to the solvent separating device.

Assignees

• Duerr Systems Gmbh

Inventors

• Holler Sebastian
• Baitinger Michael
• Wieland Dietmar
• Tobisch Wolfgang

Classifications

• B01D2258/0258

  from painting equipments or paint drying installations · CPC title

• B01D53/04 Primary

  with stationary adsorbents {(B01D53/025 takes precedence)} · CPC title

• B05B15/1233

  Operations & Transport · mapped topic

• B01D53/002

  by condensation · CPC title

• B05B15/1248

  Operations & Transport · mapped topic