Extraction and Filtration unit FP 150 ATEX

Description

The FP 150 ATEX is equipped with a cleanable anti-static filter cartridge
which allows dust build-up to be removed from the filter using bursts
of compressed air. This means that the device is ideal for applications
in which large amounts of dry, flammable dust with a minimum ignition
energy of > 3 mJ are extracted, and that it has a very long service life in
comparison to systems with saturation filters.

The system meets the requirements of the ATEX directive (EX II 2/- Dc
IIIC T100ºC) and is suitable for extraction from a zone 21, although the
system must be placed outside of the zone. The suitability for the respective
application depends on the substance to be extracted and
must be considered individually. In appropriate situations, use for a minimum
ignition energy of < 3 mJ can also be checked.
AREAS OF APPLICATION:
Flammable dusts (minimum ignition energy > 3 mJ) from the following processes:
. Laser processing (in some cases combined with precoating)
. Mechanical processing (grinding, deburring, milling, drilling, cutting)
. Transferring materials, packaging processes, transporting/
conveying processes
THE SYSTEM INCLUDES NUMEROUS FEATURES:
. Developed in accordance with the ATEX directive
. Cleanable filter cartridge
. Simple dust removal
. Powerful electronics

The contaminated air, which consists of flammable dusts, is collected by the collection unit (extractor hood,
suction arm, hose, etc.) and transported into the filter unit directly or through an earthed pipe or flexible hose.
The dust particles are filtered out by a cleanable anti-static filter cartridge in the filter unit. The filter cartridge
is cleaned using an automatic cleaning system. The automatic cleaning system is triggered by the system’s
differential pressure controls whenever the extraction level decreases. The filtered-out dust particles are collected
in a dust collector for easy disposal. If necessary, a dust bag can also be inserted for low-contamination
disposal. The cleaned air is then passed through a particle filter (which represents another level of safety)
and – depending on the application – transported back into the work area or diverted outdoors.

DEVELOPED IN ACCORDANCE WITH THE ATEX DIRECTIVE
The system was specially developed in accordance with the ATEX directive, and the documentation
was stored at a named location, in accordance with the standard’s requirement.
The device is appropriately labelled with the designation EX II 2/-Dc IIIC T100°C. It may be
used to extract from a zone 21 (the zone is appraised by the user), although the system must
be placed outside of the zone.
Customers receive a special sample explosion protection document, which enables them to appraise the
overall system of TBH extraction system and customer environment.
CLEANABLE FILTER CARTRIDGE
TBH standard filter cartridges feature a microfibre surface made of PES (polyester) and a conductive coating.
They are tough and well-protected against mechanical damage, and they represent a solution for a wide
range of customer applications. For special applications, PTFe-coated filter cartridges and other accessories
are also available.

SIMPLE DUST REMOVAL
The dust collected in the process can be disposed of using the removable dust collector. If necessary, a dust
bag can also be inserted for low-contamination disposal.

POWERFUL CONTROL ELECTRONICS
The FP 150 ATEX is equipped with INSPIRE control electronics
and a comprehensive interface. This allows controlling and monitoring
the following functions:
. Switching between run/standby
. Manual adjustment of the rotation speed
. Manual start of the filter-cartridge cleaning
. Filter-saturation indicator of the extraction system
. Visual and acoustic display of the filter saturation
. Fault display and notification
INTERFACE:
. System start/stop
. Warning at a filter saturation of 75% (notification, e.g. for external
control of the cleaning process)
. Visual and acoustic signals when filter is saturated
. Collective fault output (rotation speed, temperature, filter full 100%)
. External adjustment of the rotation speed
. External start of the cleaning process
. Error memory improves the coordination between the customer
and the TBH service
. Parameterization access for the activation of custom functions
OPERATING ELEMENTS:
A) Switching between run/standby
B) Manual adjustment of
the rotation speed
C) Manual start of the
filter-cartridge cleaning
1) Filter-saturation indicator
2) System status indicator
3) Performance-setting indicator/
operating-hours meter
4) Temperature and turbine-malfunction indicator
5) Cleaning-in-progress indicator

ADSORPTION OF GASEOUS SUBSTANCES
Two complimentary filter materials are used for the adsorption of gaseous substances. The activated carbon
facilitates the physical adsorption process while the BAC granules facilitate a chemical adsorption process.
Neutralisation of specific gaseous substances is achieved through chemical binding with the reaction substance
that is deposited on the carrier material. Because the physical and chemical adsorption processes are
complementary, an extremely wide range of gases and odours can be collected.