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Design information
(cont.)
Hydraulic drive, AS twin
Hydraulic drive to activate twin pushrod drives with discharge and fill
function. When the required fill level of the push floor screw conveyor
is reached, the discharge function is switched off. If there is free space
above the discharge push floor to accommodate top-up fuel, the top
and back pushrod carries out the fill function. When the fuel is required
by the heating system, the fill function is interrupted and switched to
the discharge function of the bottom and front pushrod.
■ Hydraulic drive comprising:
– Gear pump 3 x 400 V
– Oil container
– 4/2-way solenoid valve
– Non-return valve
– pressure limiting valve
– Pressure diverter valve
– Return filter
– Oil level indicator
– Pressure gauge
– Shut-off valve
– Oil filling
– Hydraulic hoses
– Wall mounting brackets
■ 2 infrared light barriers for level monitoring, bunker
Use of the hydraulic drives for various push floors (drives plus rods)
Hydraulic drive, AS twin
Rated output of the boiler/s
Part no.
*13
Output, gear pump
Supply volume
Stage 1
Draught
Stage 1
Supply volume
Stage 2
Draught
Stage 2
Oil content
*14
Max. number of pushrods
Push floor screw conveyor D = 190 mm
Part no. 7387 811
In order to transport the discharged fuel away from the pushrods, the
push floor screw conveyor extends over the entire push floor width as
an open trough screw conveyor. For further transportation, the push
floor screw conveyor, depending on the transfer situation, is designed
in the sealed version as a trough or pipe.
Push floor screw conveyor D = 250 mm
Part no. 7387 887
In order to transport the discharged fuel away from the pushrods, the
push floor screw conveyor extends over the entire push floor width as
an open trough screw conveyor. For further transportation, the push
floor screw conveyor, depending on the transfer situation, is designed
in the sealed version as a trough or pipe.
*12
Additional equipment for driving hydraulically controlled silo covers possible.
*13
Information on function: with a 2-stage gear pump, the pump runs in standard mode at stage 2, which means that the pushrods move quickly.
Only when the pressure drop is increased (e.g. in the case of a forward movement of the discharge pushrod with a high fill level) does the
pump switch to stage 1.
*14
Values in brackets: option only in coordination with project management at the factory.
PYROTEC
■ Control of discharge function:
according to the boiler control unit, fuse protected with temperature
and level switch in the oil container
■ Control of fill function:
According to the light barrier enabling in the bunker
*12
kW
kW
l/min
bar
l/min
bar
l
pce
Standard delivery:
■ Push floor screw conveyor according to the project drawing
Note
Article price per m
Standard delivery:
■ Push floor screw conveyor according to the project drawing
Note
Article price per m
V18
V40
100-1250
1250-2500
7387 812
7387 969
4
7.5
9
20
200
200
18
40
100
100
55
80
3(4)
3(4)
61
6
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