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Mine cars

Presented by:

Bushra Nawaz

11PWMIN0639

Subject Teacher:

Engr. Dr. Ishaq Ahmad

Department Of Mining Engineering

University Of Engineering & Technology Peshawar

Outline

• Introduction

• Types of car body

• Selection of mine cars

• Types of mine cars

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Mine Cars:

• Transportation of material

• Cars body can be:

i)Wooden

ii)Steel

iii)Composite

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Wooden cars:

• Bulky & heavy

• Less durable

• Readily constructed

• Flexibility

• Inexpensive

• Obsolescent

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Composite cars

• Wood stinger & wood lining

• Rigid

• Dumping in one direction

• King-pan or turn table

• Centered over wheel base

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Steel cars

• Use now a days

• Cost 50-100%

• Longer life

• Low maintenance cost(1/4th)

• Greater capacity (10-20%)

• Durable

• Reduce haulage cost

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Selection Of Mine Car

Factors influencing the selection:

• Tonnage mine per day

• Methods of loading

• Methods of dumping

• Size of mine car

• Weight of broken ore

• Physical condition of ore

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Types of mine cars

• Solid type

• Rocker type

• Gable bottom car

• Granby car

• Bottom dump car

• End dump car

• Scoop box car

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Solid or box car

• Rotary dump

• Without doors

• Dumped by revolving cradle

• Low cost & easy repair

• Simple construction

• Loaded car is positioned & entire dump is revolved and unloaded

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Rocker dump car

• V-shaped body

• Rounded bottom

• Rockers are connected at sides

• For dumping, car is rotated over rocker

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Gable bottom car

• Its shape is like capital W in cross section

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Granby car

• Side dumping car

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Bottom dump car

• Used for hand trammingin small mines

• Dumped from bottom

• Bottom lock is released & material is dumped

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End dump car

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Scoop box car

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References

• http://www.wildcatmines.com/.html

• http://www.undergroundminers.com/minecartheory.html

• http://en.wikipedia.org/wiki/Minecar

• Handouts by Engr. Feroz Deen

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Questions

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Thank youGod bless you all

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