Exhaust air and ventilation technology

Dust dry filter system

 
Dry filter system is used to filter out non-explosive dust (dust separator). Dry filter systems are planned and manufactured specific to the order. The controls are located in the machine where the dry filter system is installed.

Method
The contaminated air is drawn in from the blower. Air routing in the dry filter system gathers heavy centrifugal dust particles in the collection basin. Finally, the contaminated air is channeled through the filter elements, filtering out smaller dust particles.

Cleaning
Any dust particles bonded to the filter elements are blown off by a blast of compressed air. Blown out dust is collected in a dust basin.

Pre-coater: System for coating filter elements
Wet and lightweight dust particles can stick to the surface of filter elements and bond to them. A pre-coat can be applied to filter elements to increase their service life.

Technical data:

Supply/exhaust air unit

 
Supply/exhaust air units for the most varied of applications are designed in line with your project.

Equipment variants:

• Gas, oil, hot or warm-water-fired plant 
• Heat recovery 
• Temperature regulator 
• Integrated filter systems 
• Air circulation/exhaust air/dryer mode 
• Sectional ventilation, e.g. for large-surface painting stations 
• Targeted air routing and extraction 
• Control systems for optimum efficiency
  

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Exhaust air treatment

 
To reduce VOC emissions and for compliance with legal limits, we recommend the following exhaust cleaning systems:

Cleaning exhaust air with a bio filter
In the biofilter, VOC exhaust waste is transformed into carbon dioxide and water through micro-organisms.

Bio filters offer high levels of operating safety and availability, even during peak loads.

Modular biofilters are supplied in a closed container and they protect against weathering.

Thermal exhaust air treatment (RTO)
In comparison to conventional TO (thermal oxidation) systems, RTO systems (regenerative thermal oxidation exhaust air cleaners) achieve considerably higher thermal efficiency levels (up to 97%).

Heat recovery takes place via ceramic heat exchangers allocated to several chambers. While one chamber releases stored heat energy to the process air system, the next chamber is heated by the waste heat from the oxidizer. By switching the direction of flow, the chambers are used alternatingly, ensuring continuous operation.

From a solvent (VOC) quantity of approx. 2 g/Nm³, operation is powered by the energy generated from the oxidation of the solvent. The system does not require fuel.

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