ATEX deduster
Aluminum – Steel – Stainless steelOne deduster – three materials
Deburring, polishing or cutting aluminum and stainless steel produces dust that can lead to serious fires or explosions due to chemical reactions. As a manufacturer of extraction units, we have developed a special ATEX deduster that safely extracts and filters steel, stainless steel and aluminum, even in mixed operation.
The WERKERs in-house development department can also design customized extraction units or special captures and discharge elements specifically for your application.
Contact us for a no-obligation consultation, together we will find the optimal extraction solution!
Chemical reaction of aluminum and stainless steel
The machining of aluminum by grinding or sawing, for example, is usually accompanied by high levels of flying sparks. The resulting aluminum dusts are highly explosive in combination with oxygen and an ignition source. Therefore, extraction systems must comply with so-called ATEX directives.
Again, stainless steel dusts released during industrial processing are highly carcinogenic and must be specially filtered in accordance with occupational health and safety guidelines. This is done via so-called HEPA filters, which separate particle sizes from 0.001 μm up to 99.995%.
If these dusts come into contact with each other, e.g. in a deburring machine, a self-igniting dust mixture is created by thermal reaction, which can set the machining center and other machines on fire. Again, stainless steel dusts released during industrial processing are highly carcinogenic and must be specially filtered in accordance with occupational health and safety guidelines. This is done via so-called HEPA filters, which separate particle sizes from 0.001 μm up to 99.995%.
ATEX deduster in mixed operation
In order to defuse the flammable dust mixture, we have developed a special extraction unit for potentially explosive work areas in industry and trade, which can also be operated safely in recirculation mode. We take various fire protection measures during planning and construction and build our extraction units according to the primary explosion protection principle:
1st precoat unit
A precoat unit continuously applies a precoating agent such as slaked lime to the filters in an extraction unit. This reduces the material concentration of aluminum and stainless steel. The dosing of the precoating agent must be exact and continuous and is therefore doubly safeguarded.
2. Pre-separator
Before the extracted dust reaches the filter unit of the dust extraction system, coarse particles and possible sparks are already separated in advance. In addition to fire protection, this also serves to extend the filter service life and ensures low follow-up costs. The filters have to be cleaned less frequently, which significantly reduces the downtimes of processing machines and increases productivity.
3. Spark sensor with extinguishing agent device
If a spark does reach the filter unit or a fire develops contrary to expectations, a wireless sensor triggers the automatic extinguishing agent system from (water, powder, CO₂). The filter unit then only needs to be cleaned and new filters inserted.
4. ATEX design
To comply with ATEX regulations, extraction systems must be free of ignition sources and electrically conductive, and special ATEX components must be installed.
Your advantages
One system for three
media: aluminum, steel,
stainless steel
Max. 15 min.
Cleaning effort
per week
Up to 40% cheaper
than conventional
systems
Low operating and
follow-up costs
Up to 30% longer
filter service life
(HEPA H14 filter)
Installation in the
indoor area possible
Customized extraction systems
To guarantee you an optimal and economical extraction system, our extraction units are available in various sizes and numerous options. In this way, we keep operating and follow-up costs low for a sustainable machine park.
PROCESSES
Sawing, cutting, grinding, polishing, deburring
MEDIA
Dust, fine dust, chips
Options & variations
HEPA H14 FILTER
Against carcinogenic substances
ACTIVATED CARBON FILTER
Against gases and odors
EXPLOSION PROTECTION
ATEX execution
Fire protection
Automatic extinguishing system
noise protection
Effective and safe
PRE-SEPARATOR
For large amounts of material
PRECOAT-UNIT
Premium filter protection
CROSS HEAT EXCHANGER
Effective heat recovery
DIFFERENT FANS
Medium/high pressure, high vacuum
INTELLIGENT CONTROL
Versatile operating options
unit color & branding
Individual as desired
Filter technology ATEX deduster
The dust-laden air is extracted via a capture element and a large proportion of the particles are already extracted in a pre-separator. The air flow then passes through two filter levels and can be cleaned and returned to the hall or outside.
