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Efficient exhaust air purification for drying and paintingprocesses - Dry Cleaning Machinery by e55he swrzsnb
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Efficient exhaust air purification for drying and paintingprocesses - Dry Cleaning Machinery by E55HE SWRZSNB
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| Article Posted: 08/30/2012 |
| Article Views: 105 |
| Articles Written: 2033 - MORE ARTICLES FROM THIS AUTHOR |
| Word Count: 751 |
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Efficient exhaust air purification for drying and paintingprocesses - Dry Cleaning Machinery |
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Business,Business News,Business Opportunities
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Dürr Environmental andEnergy Systems optimizes exhaust air purification for the automotive industry and perfectly coordinates it with the latest drying and paintingprocesses. Painting and drying of car bodies produce gaseous pollutants that have to be removed from the air depending on the paint systemand statutory requirements. Recuperative incinerators , e.g. the Ecopure TAR from Dürr, are best suited for cleaningexhaust air flows from dryers because the heat energy contained inthe clean gas can be reused in the drying process. The Ecopure TAR recuperative oxidizer is also used for cleaningexhaust air from paint spray booths.
The painting process producesparticularly large exhaust air volume flows that have only lowpollutant loads. For this reason, a system for concentrating thesolvent-laden exhaust air flows, the Ecopure KPR concentratorsystem specifically is ideally installed between the paint spraybooth and exhaust air purification system. The exhaust air volumeflow is reduced significantly for the following thermal exhaust air purification process. The resulting increase in the pollutant concentrationsignificantly decreases the gas consumption because the energycontained in the pollutants makes a contribution during oxidation. As in all thermal processes, the exhaust air is heated in theEcopure TAR enough to oxidize the hydrocarbons to produce mainlywater vapor and carbon dioxide.
The polluted air is first preheated by the hot air in theintegrated (recuperative) heat exchanger. This allows a largeportion of the combustion heat to be recovered. When the air entersthe combustion chamber, the burner heats it further and initiatesoxidation of the pollutants, which is completed after they havepassed through the chamber. With the Ecopure TAR, special emphasis must be given to thecontrollable POWERFLEX heat exchanger from Dürr. The outlettemperature of the purified exhaust air can be controlledindependently of the combustion chamber temperature.
Due to thevariable operating point of the oxidizer, the outlet temperature ofthe TAR can, for example, be reduced to save energy – withouthaving a negative effect on the clean air quality! Features such as the innovative reaction chamber design, the moreeffective air flow and the improved TARCOM burner technology fromDürr offer further added value. Other features include betterheat insulation and the optimally integrated heat recuperation fordryer heating. The Ecopure TAR saves significant fuel energy and operating costs,achieves better emission levels, and produces a longer systemservice life thanks to lower combustion chamber temperatures. An increasing number of automotive paint shops are working with theinnovative Dry Cleaning Machinery separation system EcoDryScrubber from Dürr, which binds excess paintparticles in Dry Cleaning Machinery filters – i.e. without water contact.
Thissystem not only reduces the energy consumption of the paint shop byup to 30%, but also offers advantages in exhaust air purification . The reason for this is exhaust air from the EcoDryScrubber ishighly concentrated and efficiently filtered. This permits a verycompact design for the Ecopure KPR VOC concentration system and theconnected TAR recuperative oxidizer, which are used for exhaust air purification . Furthermore, the exhaust air purification systems can be operated very economically. The reason is theyrequire very little energy, because the pollutants themselvessupply sufficient fuel energy for operation.
For Dürrcustomers, this means lower investment costs and around 80% lessenergy consumption. Dürr optimized the Ecopure KPR so that itcan be ideally combined with the EcoDryScrubber paint spray booths. Figure : Ecopure TAR Dürr is a mechanical and plant engineering group that holds leading positions in the world market in itsareas of operation. It generates a good 80% of its sales inbusiness with the automotive industry . It also supplies the aircraft, machinery, chemical, andpharmaceutical industries with innovative production andenvironmental technology.
The Dürr Group operates in themarket with four divisions. Paint and Assembly Systems plans andbuilds paintshops and final assembly systems for the automobileindustry. Application Technology provides automated paintapplication, sealing, and glueing with its robot technologies.Machinery and systems from the Measuring and Process Systemsdivision are used in engine and transmission manufacturing and infinal vehicle assembly, among other areas. The fourth division,Clean Technology Systems, is focused on processes to improve energy efficiency and on exhaust air purification . Dürr has 50 business locations in 23 countries worldwide andapproximately 7,100 employees.
The Group achieved sales of €1.9 billion in 2011.
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