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Mine Ventilation Dilution Checklist

Ensure optimal air quality and worker safety! This Mine Ventilation Dilution Checklist provides a step-by-step guide to verify adequate ventilation dilution ratios, minimizing hazards and maximizing operational efficiency. Download now and protect your mining workforce.

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Pre-Shift Ventilation Checks

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Initial assessment of ventilation system functionality before commencement of shift operations.

Shift Start Time

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Ventilation System Status (Pre-Shift)

Pre-Shift Ventilation Fan RPM (Fan 1)

Pre-Shift Ventilation Fan RPM (Fan 2 - if applicable)

Emergency Ventilation System Availability

Notes on Pre-Shift Ventilation Condition

Airflow Measurement

2 of 10

Verification of airflow rates at strategic locations within the mine.

Airflow Rate (m³/s)

Airflow Rate (CFM)

Measurement Location (GPS Coordinates)

Measurement Device Used

Pitot Tube Pressure (Pa)

Measurement Time

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Notes on Measurement Conditions

Dilution Factor Calculation

3 of 10

Determination of dilution factors to ensure acceptable air quality.

Gas Emission Rate (m³/s)

Airflow to Mining Area (m³/s)

Total Airflow (m³/s)

Dilution Factor

Gas Type (Primary Contributor)

Notes/Comments on Calculation

Date of Calculation

Gas Monitoring

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Monitoring of methane, carbon monoxide, and other hazardous gases.

Monitoring Start Time

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Methane Concentration (ppm)

Carbon Monoxide Concentration (ppm)

Oxygen Concentration (%)

Gas Detection Equipment Model

Calibration Expiration Date (YYYY-MM-DD)

Gas Monitoring Notes

Ventilation Control Settings

5 of 10

Review of ventilation control system parameters and adjustments as needed.

Fan Speed (RPM)

Air Volume (m³/s)

Ventilation Pressure (Pa)

Ventilation Mode

Time of Adjustment

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Reason for Adjustment

Control System Status

Fan Performance Evaluation

6 of 10

Assessment of fan RPM, power consumption, and overall efficiency.

Fan RPM (Revolutions Per Minute)

Motor Amperage (Amps)

Static Pressure (inches of water)

Air Volume (CFM or m³/s)

Fan Noise Level (Subjective)

Fan Vibration Observation (Describe)

Fan Efficiency Rating (if available)

Last Maintenance Date

Stoping Area Ventilation

7 of 10

Specific ventilation checks for active stoping areas.

Airflow (m³/s) at Face

Gas Concentration (methane, %) at Face

Distance to Nearest Ventilation Control Panel (m)

Ventilation Direction (as per plan)

Observations & Deviations

Time of Ventilation Check

0:00
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Potential Hazards Identified

Return Airway Assessment

8 of 10

Evaluation of airways used for return airflow.

Airflow Measurement (m³/s)

Description of Airway Condition

Evidence of Scaling/Support Required?

Potential Hazards Observed

Return Airway Location

Date of Assessment

Ventilation Obstruction Check

9 of 10

Identification and correction of any obstructions affecting airflow.

Obstruction Location (GPS Coordinates)

Type of Obstruction

Detailed Description of Obstruction

Estimated Obstruction Volume (m³)

Impact on Airflow?

Photo of Obstruction

Time Obstruction Notified

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Record Keeping & Reporting

10 of 10

Documentation of ventilation data and reporting of any discrepancies.

Date of Ventilation Dilution Check

Time of Ventilation Dilution Check

0:00
0:15
0:30
0:45
1:00
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Average Methane Concentration (ppm)

Average Carbon Monoxide Concentration (ppm)

Dilution Factor Achieved

Dilution Factor Acceptance Status

Observations & Deviations

Ventilation Officer Signature

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