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Automatic ventilation control systemThe Third Mine, Belaruskali
(Republic of Belarus)
The purpose is to reduce operating ventilation cost
Which elements does the system consist of?
Main Fan Unit
Recirculation Fan Units
Main Fan Unit
Automatic regulators
Recirculation Fan Units
Main Fan Unit
How does the equipment look?
Recirculation Fan Unit
Automatic Regulator
Automatic Regulator
How does the system work?
Main Fan Operating Speed Adjusting
Main Fan Operating Speed Adjusting
Controlled Airflow Recirculation
Automatic Air Flow Redistribution
Main Fan Operating Speed Adjusting
Controlled Airflow Recirculation
Automatic Air Flow Redistribution
Main Fan Operating Speed Adjusting
Controlled Airflow Recirculation
Gas concentration sensors are used to determine a critical reused air flow rate which is regulated by adjusting recirculation fan unit operating speed
Air flow is distributed depending on a current air demand in mine areas. Redistribution is performed by setting a new angle for regulator’s leafs. Angles for regulators’ leafs are determined automatically by required airflow values for different mine areas.
Total mine air flow is determined by all underground consumers requirements and regulated by fan operating speed which is adjusted via drive frequency.
What a result?
Total Airflow
510 m3/s
360 m3/s
Main Fan Power Efficiency
2.7 MW
1.6 MW
Air Distribution Disbalance
18 %
7 %
Capital Cost
$4 000 000
Savingsin Annual Operating Cost
$1 600 000
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