Automatic mine ventilation control system
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Transcript of Automatic mine ventilation control system
![Page 1: Automatic mine ventilation control system](https://reader033.fdocuments.in/reader033/viewer/2022051300/587b60981a28ab38258b5847/html5/thumbnails/1.jpg)
Automatic ventilation control systemThe Third Mine, Belaruskali
(Republic of Belarus)
![Page 2: Automatic mine ventilation control system](https://reader033.fdocuments.in/reader033/viewer/2022051300/587b60981a28ab38258b5847/html5/thumbnails/2.jpg)
The purpose is to reduce operating ventilation cost
![Page 3: Automatic mine ventilation control system](https://reader033.fdocuments.in/reader033/viewer/2022051300/587b60981a28ab38258b5847/html5/thumbnails/3.jpg)
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Which elements does the system consist of?
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Main Fan Unit
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Recirculation Fan Units
Main Fan Unit
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Automatic regulators
Recirculation Fan Units
Main Fan Unit
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How does the equipment look?
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Recirculation Fan Unit
![Page 10: Automatic mine ventilation control system](https://reader033.fdocuments.in/reader033/viewer/2022051300/587b60981a28ab38258b5847/html5/thumbnails/10.jpg)
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Automatic Regulator
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Automatic Regulator
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How does the system work?
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Main Fan Operating Speed Adjusting
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Main Fan Operating Speed Adjusting
Controlled Airflow Recirculation
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Automatic Air Flow Redistribution
Main Fan Operating Speed Adjusting
Controlled Airflow Recirculation
![Page 18: Automatic mine ventilation control system](https://reader033.fdocuments.in/reader033/viewer/2022051300/587b60981a28ab38258b5847/html5/thumbnails/18.jpg)
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.
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What a result?
![Page 20: Automatic mine ventilation control system](https://reader033.fdocuments.in/reader033/viewer/2022051300/587b60981a28ab38258b5847/html5/thumbnails/20.jpg)
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