Effectively separating dust particles by saturing the air stream with a water vortex while reducing/eliminating the potential for explosion, the Wet Downdraft Table from Airex Industries is best used in highly explosive and reactive dust as well as oil mist applications.
This industrial grade wet downdraft table unit requires little maintenance thanks to its flexibility, high efficiency, robustness and top quality. Simplicity and high efficiency definitely remain its two greatest advantages.
This wet downdraft table unit for non-continuous operation does not require water level monitoring and will work independently.
Water level systems are available with secondary filter wash systems to aid and reduce maintenance and increase performance and filter life.
Safety
Particulates are drawn directly into the water, providing safe collection of aluminum and other potentially hazardous dust, as well as heavy sparking applications, meeting or exceeding OSHA and NFPA regulations concerning dust removal inside buildings.
Energy Saving
By recirculating clean, tempered air it is possible to save on heating and cooling costs.
Customization
The wet downdraft table can be built to specifications for the size of operation and the plant’s available floor space.
Added Environmental Control
The plexiglass workstation enclosure provides for containment, integral lighting and regain air. The Regain Air System takes a portion of the filtered air and shoots it down toward the table top, effectively “pushing” as the blower is simultaneously “pulling” the contaminated air into the perforred grating plate.
Tech Specificatcations
The wetrex is at the hearts of all wet downdraft table, so therefore, all the technical specifications of the wet dust collector applies to these booths.
- Stable pressure drop for a given gas flow
- Constant efficiency for a given particulate condition
- No moving parts; no replaceable filters, robust construction
- Low capital investment and maintenance costs
- Compact (in most applications)
- Humidification of the working zone
- Possibility to cool the working zone
How the High Efficiency WDDT Series Wet Downdraft Table Work
- Particle immersion is achieved by a strong turbulent water zone that forces the particles into the water; the main curved baffle insures that the particles are submerged and redirected towards the basin.
- The air and water mixture is then forced through another series of baffles that aid in the separation of the “clean” air from the dirty water.
- Secondary water/mist filters are used to drain out any water still left in the air stream.
- The water returns to the storage bin when the particles settle via gravity. It is then reused while the sludge and the debris are removed.
Selection Criteria for a WDDT Series Wet Downdraft Table:
- Type of dust
- Dust concentrations
- Process conditions:
- Temperature
- Humidity
- Corrosive agent avantages
- Dew point
- Physical constraints
- Duct static pressure
- Disposal method
- Total airflow return air volume
Applications
- Aircraft manufacture / maintenance
- Manufacture of electrical / electronic enclosures
- Milling / refining
- Chemical products
- Plastics and rubbers
- Ceramics
- Foundries
- Metal work
- Explosive metals such as aluminum, magnesium and steel
- TEFC Motors, Single and Three Phase
- Secondary Mist Eliminator Filters
- Overflow / Low Water Cut-off Switches
- Manual Cleaning Trap
- Electronic Water Level Monitor
- Direct Drive / Non-overloading Blower
- Magnehelic Gauge
- Easy inspection Access Door
- Drain
- 12 gauge galvanised construction with special Interior coatings
- Regain Air System
- Crane Slots
- Stainless Steel Construction
- High /Low Level Alarm
- Explosion Proof Motor
- «HEPA» Secondary Filters
- «HEPA» Safety Filters with Alarms
- Explosion Proof Motors
- Secondary filter water wash system
