Klimawent BIG-12000/Ex, Руководство по эксплуатации и обслуживанию

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Filtering unit BIG-12000/Ex
10.10.2019
STRUCTURE ADN FUNCTION
5.1 Structure
BIG-12000/Ex filtering unit consists of three functional assemblies:

Regeneration chamber, being the upper part of the device, where are located outlets from the cartridge filters and
Venturi Orifices. Outside the regeneration chamber is installed the compressed air installation, consisting of:
–
compressed air tank
– constructed for operational pressure not exceeding 0,8 MPa, the tank meets the re-
quirements of the European Union Directive 87/404/EEG and 90/488/EEG ;
–
four
electromagnetic valves of diameter 1”½, designed for regeneration of the cartridge filters, these valves
meet the requirements of directives: ATEX 94/9/EC and EMC 2014/30/EC ;

Chamber of filters
– forms the middle part of the filtering unit and contains the cartridge filters. On the chamber
housing is located the inspection door, (for filter replacement) and a decompression panel lowering the pressure
in case of potential explosion. Outside the chamber is installed a micro-controller
– to activate the electromagnetic
valves, (described in details in Section 7);

Supporting construction along with the hopper chamber. Underneath the hopper chamber is placed a self-loading
funnel for dust / waste and a cell feeder
– providing a continuous dust discharging and its loading into the transport
container or into the discharge ducting. Discharge of the accumulated dust ought to be carried out by operator.
Fig. No.2
– BIG-12000-/Ex – Structure and dimensions
BIG-12000/Ex filtering unit is served by an Ex execution fan (as additional equipment upon separate order).
To
control the device is applied a switchgear, which should be installed outside ( beyond ) the zone of
explosion hazard . Detailed description can be found in Section 7 of the present Use and Maintenance Manual.
CAUTION : The switchgear is delivered upon separate order .
5.2 Function
BIG-12000/Ex filtering unit provides separation of the air containing dry dust fraction. The dust laden air is guided
to the chamber of filters. Here, in the decompression process and because of the flow velocity reduction, larger
particles of dust are extracted into the hopper chamber, and subsequently they fall into the waste container.