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Mechanical
Metal Mesh Filter
The metal mesh filter removes dust and fine dust from the
flue gas. It is characterized by a particularly high degree
of separation. This ensures a fine dust content of less
3
than 20 mg/Nm
in the clean gas. The flue gas cyclone is
not required when using the metal mesh filter.
The metal mesh filter compresses two block shaped units
joined together. The compact design enables it to also be
used in low level boiler rooms. The filter cartridges are
robust and resistant to a shower of sparks.
Function:
The filter is operated under negative pressure. With the
cylindrical filter cartridges, the flow is from outside in.
The filter cartridges are protected against condensation
by means of a heating system and are therefore protected
against corrosion.
In the case of boiler demand, the filter cartridges are
preheated. If the set filter temperature is reached, boiler
start-up operation is enabled. If the temperature falls
below the filter temperature set point, the filter heating
system starts in heating mode.
The filters are cleaned automatically in the counter current.
This means that the dust layer on the mesh is regularly
discarded into the ash box.
Filter operation is controlled via the boiler control unit.
Operation is carried out via the control unit programming
module.
28
Vitoflex 300-RF Installation & Operating
Supplied with:
- Two-part, insulated filter casing with:
- Hinged doors, lockable by means of a quick-action
fastener and lock
- Maintenance cover for clean gas space
- Filter cartridges
- Ash box
- Electric heater
- Pneumatic cleaning
- Flue gas exhaust blower for boiler and filter
- Control panel fully wired.
On-site tasks:
Provision of a compressor or a connection to a
compressed air line system [adjustable pressure level
4-6 bar (60-90 psi)] and a power supply of 208/3/60.
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