Installation | 4
M0741021_en | Installation and operating instructions Spring blade agitator FBR
19
Store detail
Design information
1
Walls and
ceilings
The walls and ceilings of the store and the boiler room must be fire-proof (REI
90) in compliance with local regulations
2
Hole in
wall
Do not fix or cement the transfer trough and rotary agitator duct to the
brickwork as this can create a bridge transferring all mechanical noise and
vibrations to the brickwork. For this reason, fill any gaps around holes made in
walls with insulating material as per EN 1366-3 and EN 13501-2.
For dimensions of the opening see “Hole in wall”
3
Boarding the
store door
The store door must be a fire door with an EI
2
30-C fire resistance rating; it
must have a seal. Wooden boards should also be fitted on the interior of the
store so that the fuel does not press against the door.
4
Inspection
opening
Maintenance opening with class EI
2
90-C fire resistance rating (e.g. chimney
door) immediately over the hole in the wall for easy clearance of any
blockages from oversized material around the shear edge of the discharge
screw. The inspection opening must be designed in such a way that it can only
be opened with a tool. The operator must highlight residual risks at the
inspection opening.
5
Side wall
protection
If the structure of the store means that the arms come into contact with the
wall (rectangular room), we recommend that you fit an approx. 300 mm high
covering made of sheet metal or hardwood to the wall of the store. This
prevents pieces of the wall and plaster from breaking off and blocking the
discharge system.
6
Raised
floor
This prevents material from remaining below the rotary agitator arms. This
material would decay, and this could affect the heating value. For this reason,
we recommend that the customer installs a raised floor. The construction
should be dimensioned so that the raised floor is not deformed under the static
load of the fuel. The raised floor must also be self-supporting, and it should not
be supported by the screw channel.
4.2.1 Wall penetration
α
β
s
Section - Side view:
Section - Top view
Before installing the rotary agitator, the customer must provide a wall penetration for the
trough. The dimensions of the opening are calculated from the wall thickness (s) and the
angle of the trough to the wall (β) or the angle of inclination (α) of the entire system.
Experience indicates that an opening of 500 mm x 500 mm is sufficient. You should also
note that the trough must not be connected to the wall, and that it should be cladded in
elastic at the end.
