Risk Management Home Work

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RISK MANAGEMENT[ ] November 20, 2013

RISK MANAGEMENT

Research Methods 411

Research Methods, Risk Assessment & Management, Design of Experiments

MISSOURI UNIVERSITY OF SCIENCE AND TECHNOLOGY

Prepared for:

Dr. Jason Baird/Philip Mull igan

Prepared by:

Muhammad B. Hayat

Graduate Student, Mining Engineering

Missouri University of Science and TechnologyFormerly University of Missouri -Rolla (UMR)




Introduction

The tentative topic of my research work is “Electrokinetic Study of clay interactions with coal in flotation”. My research is in

preliminary stage and I am in the first year of my PhD studies. The Fault tree analysis of my research wok presented in this

assignment cannot be detailed as the topic is not yet finalized.

The fault tree analysis of my research is as follow




FEMA Chart

The FEMA chart of my research is given below:

Failure Mode and Effect analysis Chart

Processes & sub

processes

Failure Modes Causes Effects Severity Probability Hazard

Crushing & grinding

Grinding in the mill No grinding

Material contaminated

Required size notachieved

Lab not available

Some other material

crushed

Non availability of proper size crushing balls

Delay in research

Wrong Results

Flotation cannot be done

4 3 12

Safety Flame hazard

Dust inhalation

Large amount of coal

crushed Non availability of face

masks

Building on fire

Lung damage

4 2 8

Coal Flotation

Preparing coal slurry Wrong %age by weight

of coal

Wrong weight of

collector dissolved

Ionized water for slurry

Not well mixed

Inaccurate balance

Inaccurate balance

Long Exposure to air

Less time for stirring

Improper data

Less recovery of coal

Unrealistic zeta potential

Improper data

3 2 6




Safety Inhalation of chemicals

Touching chemicals

Carelessness, Masks not

available

Carelessness, gloves not

available

Vomiting, Headache

Skin burns, skin disease

2 3 6

Zeta Potential

Measurement Bad quality report

Improper size of coal in

slurry

flocculation of coal

slurry

improper grinding

Wrong zeta potential

Wrong zeta potential

3 2 6

Risk treatment plan to mitigate the risk

The highest ranking hazard in my research is due to crushing and grinding of the coal, with a hazard score of 12.The delays in

crushing and grinding of the coal can delay my whole research work, because it is the first step to be performed in every area of my

research. For example before performing flotation or measuring zeta potential, coal has to be ground to a specific size, so if grinding

facility is not available , I cannot proceed in my research.




Moreover you have to be very careful during grinding, because improper size of ground coal can result in improper and misleading

results. To complicate things further, the coal dust produced during crushing and grinding is the most hazardous thing encountered in

mineral processing field with respect to human health.

In the risk treatment plan, risk consequences can be avoided by different techniques. The technique which I have chosen is avoidance.

In order to avoid grinding and its hazards, the pre ground coal can be purchased from the mine. In mines with mechanical excavation,

a lot of fine coal is produced, which can be obtained easily. In this way the time consumed in grinding of coal will be saved, and the

hazards associated with it will be avoided.

If sometimes the fine coal is difficult to find, the likelihood of delays and hazards associated with grinding can be reduced by taking

care of the causes of these hazards. In this regard, lab schedule should be made and shared with the other people working in the lab, so

that availability of the lab should be ensured. The grinding mill should be thoroughly cleaned before and after grinding in order to

avoid contamination. The health hazards related with grinding of coal can be minimized by using proper personal protection

equipment.

Risk Management Home Work

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