KOB PYROT - Hydraulic drive, AS twin; Push floor screw conveyor D = 190 mm; Push floor screw conveyor D = 250 mm

Hydraulic drive, AS twin
Hydraulic drive to actuate 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 limiter 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
■ 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
Use of the hydraulic drives for various push floors (drives plus rods)
*14
Hydraulic drive, AS twin V18 V40
Rated output of the boiler/s kW 100-1250 1250-2500
Part no. 7387 013 7387 893
Output, gear pump
*15
kW 4 7.5
Supply volume
Stage 1
l/min 9 20
Draught
Stage 1
bar 200 200
Supply volume
Stage 2
l/min 18 40
Draught
Stage 2
bar 100 100
Oil content l 55 80
Max. number of pushrods
*16
pce 3(4) 3(4)
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.
Standard delivery:
■ Push floor screw conveyor according to the project drawing
Note
Article price per m.
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.
Standard delivery:
■ Push floor screw conveyor according to the project drawing
Note
Article price per m.
*14
Additional equipment for driving hydraulically controlled silo covers possible.
*15
Information on function: with a two-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.
*16
Values in brackets: option only in coordination with project management at the factory.
Design information
(cont.)
PYROT
69
5822 516 GB
6