Fuel Discharge With Agitators; Horizontal Discharge Ah; Specification - Viessmann VITOFLEX 300-UF Technical Manual

Fuel discharge
(cont.)

5.3 Fuel discharge with agitators

Horizontal discharge AH

For part no., see pricelist
■ Horizontal discharge up to 5.0 m diameter
■ Horizontal discharge up to 6.0 m diameter
Horizontal discharge with bottom agitator as a heavy-duty version,
especially for larger volumes and/or high boiler outputs. The two agi-
tator arms each comprise one or two (depending on size) articulated
arms and an externally fitted leaf spring package. The agitator is
driven subject to the fill level of the discharge screw conveyor (con-
trol via light barrier).
The discharge screw conveyor itself functions independently of the
agitator by a separate drive unit in accordance with boiler demand.
The result is trouble-free operation and a long service life. In wood
pellet applications, a cover panel is required over the screw con-
veyor channel. Maximum fill level and maximum slope must be
observed.
Standard delivery:
■ Horizontal discharge as per project drawing
– Bottom agitator with two arms and external drive with shaft routed
to inside
– Bottom agitator drive 3 x 400 V, with geared screw conveyor
motor and torque support
– Switching by the boiler control unit with enabling of the dis-
charge screw conveyor

Specification

Max. fill level
BD650 wood pellets
BD350 briquettes
BD350 woodchips
Max boiler output
BD650 wood pellets
BD350 briquettes
BD250 woodchips
*12
BD350 woodchips
*12
BD450 woodchips
Horizontal discharge AH
Discharge circle f
Weight excluding conveyor channel
Torque of the drives
At agitator centre D
At discharge centre B
*12 If the fuel is approved for the boiler
VITOFLEX 300-UF
– Drive unit for discharge screw conveyor with spur geared motor
3 x 400 V and chain drive
– Switching by the boiler control unit with enabling of the follow-
– Speed/output: project-related and subject to boiler output and
– Light barrier for monitoring the fill level in the sealed screw con-
veyor channel
– Outlet with inspection cover and safety limit switch
To be carried out by the customer:
■ Installation of an intermediate floor required (preferably made from
wooden boards)
Note
The discharge screw conveyor must be ordered separately.
Speed/output of the drives: sizing by Viessmann
m
m
m
kW
kW
kW
kW
kW
AH up to 5 m
m 3.8
kg 480
Nm approx. 2900
Nm approx. 800 approx. 800
ing conveyor device
fuel
4.5 5.0
480 480
approx. approx. approx. 2900
2900 2900
approx. 800 approx. 800
4.5
6.0
8.0
2000
1250
1250
1250
1250
AH up to 6 m
5.5 6.0
500 500
approx. 2900
approx. 800
Viesmann
45
5