Mine Hoist Design

Sean Wilson

Web project for Physics 212 Spring 2014


The following pages detail the process of selecting an appropriate hoisting system for a mining operation.
The hoisting system is a crucial part of many mining operations, specifically those underground mines
that feature a vertical shaft entry for both personnel and material haulage.  There are two main types of
hoisting systems, Drums and Friction.  This example will cover a Friction, or Koepe, hoisting system.

Friction hoisting systems boast several advantages over traditional drum hoists.  Newer models are
significantly less expensive than drum systems, and thanks to multi-rope systems, can generally lift
larger and heavier loads than traditional drum hoists.  Additionally, friction systems feature smaller sizes
than drum systems for similar payloads and applications, so delivery, installation, and even maintenance
are less costly.

Friction hoists also have their downsides, though.  A balanced friction hoisting system is unable to service
loading points at different elevations and are better suited for shallower operations, less than 2,500 ft.


Design Specifications

Assumptions Made

Duty Cycle Calculations

Production Rates Calculations

Rope Size

Drum Size

Total Suspended Load

Horsepower Calculations

Summation of Design Selections