Mine Environment and Hazards
Teacher
Abhimanyu Kumar Patel
Category
Core Courses
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Course Name : Mine Environment and Hazards
Code(Credit) :CUTM1107(2-1-0)
Course Objectives
- To make the students have understanding on:
Students will be able to understand the environmental factors that concerns with the mines.
• Students will have an understanding on mine Gasses
• during the mines hazards, airborne respirable dust and illumination survey.
• Evaluation System
• As per the University Norms.
Course Outcomes
CO1 Explain the physiological effect of different gases, dust and measuring instruments for different gases PO1 (2), PO2(1)
CO2 Explain causes, prevention of coaldust and firedamp explosions, spontaneous heating and inundation PO4 (1), PO5(1)
CO3 Describe about mine climate PO1 (2)
Course Syllabus
MODULE I
Mine air:
Atmospheric air composition, mine air composition and comparison, Mine gases-origin, occurrence, physiological effects, detection, monitoring and control. Methane layering, degasification of coal seams, production, assessment, physiological effects and control.
Practice:
Determination of CO, CH4, H2S, SO2, O2, CO2, Nitrous fumes by corresponding detectors.
Detection of methane by different types of methano meters & flame safety lamp.
MODULE II
Mine climate:
Sources of heat in mines, effects of heat and humidity in mines, testing methods and devices: psychometry, kata thermometer, control methods or improving of cooling power of mine air: Air conditioning basic vapor cycle, representative layout.
Explosions: Types, mechanism, ignition temperature, lag on ignition, Causes and preventive measures of underground explosions (Fire damp and coal dust explosions) causes and preventive measures. Stone dusting, stone dust and water barriers, investigation after explosion.
Spontaneous heating: Mechanism, factors governing spontaneous heating, stages of spontaneous
heating, symptoms of spontaneous heating in underground mines, detection and prevention of
Spontaneous heating, interpretation of mine air samples, Graham’s index, and problems on Graham’s
index. Incubation period
Practice:
Detection of different gases by Gas – Chromatograph.
MODULE III
Mine Inundation :
Causes of inundation by surface and underground water by opencast and underground mines, Design and construction of Boundary barriers, Panel barriers, and Water dams.
Airborne respirable dust :
Generation, dispersion, measurement, and control; physiological effects of dust, dust-related diseases.
MODULE IV
Rescue & Recovery and its Scope. Rescue organization, Rescue stations, Rescue teams Selection Initial & refresher training. Rescue apparatus self-contained portable breathing apparatus, Gasmasks, Smoke helmets, Self Rescuers, Reviving apparatus with actual rescue operations
Practice:
Study and uses of self rescuer Gas mask, smoke helmet. 8. Study and use of reviving apparatus.
Text Books:
Elements of Mining Technology Vol 2, Deshmukh DJ, Denett& Company.
Mine Environmental Engineering, Volume I Mritunjoy Sengupta, CRC Press
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