Improving the ventilation system at Rosh Pinah zinc mine

INVENTS: A Hybrid Mine Ventilation Planning and Design System

The Use of Computer Simulation for the Design of a Bioheap Leach for Sphalerite

GeoBiotics, LLC and Kumba Resources (Pty) Ltd are jointly developing the GEOCOAT heap bioleaching technology and downstream processing technology for recovery of zinc from tailings at the Rosh Pinah Mine in Namibia. This paper outlines the development of a computer simulation for the bioleaching of sphalerite and the downstream processing. Computer modeling has shortened the product development...

A Brief History of Mine Ventilation

Observations of the movements of air in underground passages have a long and fascinating history. Between 4000 and 1200 BC, European miners dug tunnels into chalk deposits searching for flint. Archaeological investigations at Grimes Graves in the south of England have shown that these early flint miners built brushwood fires at the working faces—presumably to weaken the rock. However, those Neo...

Engineering Aspects of Coal Mine Ventilation Systems

The s ingle most c r i t i c a l f a c t o r a f f e c t i n g t h e h e a l t h and s a f e t y o f workers engaged i n t h e coa l -winning p r o c e s s i s the mine envi ronment ; which i s b r o a d l y d e f i n e d as t h e space i n which man works when underground and i n c l u d e s t h e p h y s i c a l and c h e m i c a l c o n d i t i o n s of t h e s u r r o u n d i n g e n c l o ...

Providing Design Strategies for Ventilation System in Treatment Environments (Proposed Sample: Hybrid Ventilation System in Hospitals)

One of basic principles in designing treatment environments is to design air conditioning/ventilation system proportionate to environment. Essentially, appropriate air conditioner in treatment spaces must bear the following capabilities: providing healthy and clean air, reducing the concentration of pollutants produced in the atmosphere, emission of pollutants and impeding their spread in exter...