Setup of Control Feeder in BLX Engineering
| Table ConFeeder |
| Name | Merger | MinCapacity | MaxCapacity | RecalculateOnStarvation | StarvationLimit | StarvationTimeout |
| | | t/h | t/h | | % | s |
| | | | | 'false | 100 | 30 |
- Name - feeder name
- Merger - reference to existing Merger
- MinCapacity - unit: t/h
- MaxCapacity - unit: t/h
- RecalculateOnStarvation - default: 'false
- StarvationLimit - unit: % default: 100
- StarvationTimeout - unit: s default: 30
In BLX engineering tool each feeder have been to be either a
control feeder or a disturbance feeder
A
control feeder is
a weight feeder which BLX controls by the set points.
IN the table are entered Min and Max capacity of the feeder in t/hr.
If not informed by site, then minimum is normally set at 1/10 of the max capacity.
BLX will not allow a feeder to go below the minimum setting put here, so a feeder will never go to a set point of 0 unless the minimum is set to 0.
Recalculate on Starvation can be set to either true or false. Normally it is by default set to false. Should only be set to true for small feeders.
it can be set in the BLX mimics as well.
StarvationLimit normally set to 100% as default so it de-activated when BLX starts. It is the % deviation from the WSP (Working Set Point) after the Starvation TimeOut have been exceed.
It should only be used for minor feeder providing the additives for the procutions. It is per default de-activated because even if recalculate on starvation is deselected BLX will do a recalculate if new set points are calculated while a feeder is in starvation (for example if a new sample is analysed while the feeder is in starvation). This is because BLX then see the feeder as stopped.
StarvationTimeOut: Normally set to 30%, meaning that from the Starvation limit is reached BLX will wait 30 sec. before it puts a feeder in starvation mode.