Underground Mine Refrigeration Developments

Life-of-mine ventilation and refrigeration planning for ...

2008). The mine is planned to be a large block cave operation and is currently at the prefeasi-bility stage. Assessment for the life-of-mine and ventilation studies has been done to establish ventilation distribution layouts, and vventilation and refrigeration needs and strategies. Although the mine development …

Ventilation and Cooling in Underground Mines

13-3-2011· On mines where large amounts of refrigeration are required underground at depths greater than 2,500 m, the costs of circulating the chilled water can justify replacing it with ice. When the latent heat of fusion of the ice is taken into account, the cooling capacity of each 1.0 l/s is increased approximately fourfold, thus reducing the mass of water that needs to be pumped from the mine back ...

Development and testing of an underground remote ...

Development and testing of an underground remote refrigeration plant D.J. STANTON Mining Services Consultant, Anglo Platinun The objective of this study was to develop, install, and test a small underground mobile refrigeration plant (MRP) to deal with some of the real problems associated with mine cooling in an operating mine.

CHAPTER 18. REFRIGERATION PLANT AND MINE AIR …

Chapter 18 Refrigeration Plant and Mine Air Conditioning Systems Malcolm J. McPherson 18- 2 18.1. INTRODUCTION One of the earliest methods of temperature control in underground mines was the importation of naturally produced ice from the surface. Blocks of …

Current Developments and Challenges of Underground …

Current Developments and Challenges of Underground Mine Ventilation and Cooling Methods . By Amin Kamyar, ... A revision of the novel ventilation strategies and mine refrigeration methods, ... likely future developments in the area of mine cooling are outlined Topics: 2016 . Publisher: Research Online.

Current Developments and Challenges of Underground Mine ...

underground cooling; one is the use of mine ventilation and the cooling effect of the airflow; and secondly use of refrigeration to provide working areas with low-temperature environments. Despite the recent developments in mine air-conditioning, many Australian miners still suffer from thermal

Bluhm Burton Engineering Mine Ventilation and ...

Bluhm Burton Engineering (BBE) is a team of experienced professional consulting engineers who are leaders in mine ventilation, refrigeration and cooling practices; measurement and control of underground pollutants (dust, diesel, methane, radiation etc); energy optimisation and energy recovery, computer modelling and software for ventilation and cooling networks.

Underground mining (hard rock) - Wikipedia

Underground hard rock mining refers to various underground mining techniques used to excavate hard minerals, usually those containing metals such as ore containing gold, silver, iron, copper, zinc, nickel, tin and lead, but also involves using the same techniques for excavating ores of gems such as diamonds or rubies. Soft rock mining refers to excavation of softer minerals such as salt, coal ...

Current Developments and Challenges of Underground …

Current Developments and Challenges of Underground Mine Ventilation and Cooling Methods . By Amin Kamyar, ... A revision of the novel ventilation strategies and mine refrigeration methods, ... likely future developments in the area of mine cooling are outlined Topics: 2016 . Publisher: Research Online.

UNDERGROUND ENVIRONMENTAL CHALLENGES IN DEEP …

Platinum mines in the Bushveld Complex are located in areas with a high geothermal gradient. This means that, compared to, for example, gold mines of the Witwatersrand region, high rock temperatures are encountered at relatively shallower depths. Thus air cooling and refrigeration need to be considered at early stages in mine development.

Underground cooling at gold mine | Aggreko

When the wet-bulb temperature in the Cobar mine climbed to 30°C, miners could only work safely underground for limited periods of time resulting in a loss of productivity. So Peak Gold Mines – knowing we had years of experience in the mining business and that we take the health and safety of all workers seriously – called us in to fix their seasonal temperature problem.

Mine Ventilation – The Australian Mine Ventilation ...

With re-emergence of pneumoconiosis in mine workers, it is important for all underground operations to contribute to this conference. The conference program features 7 keynote speakers and 40 technical presentations examining metal and coal mine ventilation planning and design, mine fires and explosions, mine heat and refrigeration, case studies and more.

NPTEL :: Mining Engineering - An Introduction to ...

mine illumination. introduction and guidelines; glare, health and safety; heat and humidity. introduction. humidity and its measurement; psychrometers and psychrometric calculations; heat in underground mines - i; heat in underground mines - ii; heat in underground mines - iii; effects of heat on miners; heat indices; mine refrigeration; heat ...

Refrigeration plant and mine air conditioning systems ...

The vapour compression refrigeration cycle, currently the most widespread method of artificial cooling, appears to have first been used in mining during the 1920s. Examples included the famous Morro Velho Mine in Brazil (1923) and experimental work in British coal mines (Hancock, 1926).

CHAPTER 2. LARGE MINE COOLING SYSTEMS 2.1 Introduction

produced ice was taken underground in American and European mines. Technological advancement saw the introduction of vapour-compression chillers to mine cooling systems in the 1930s (Hancock 1926). South African gold mines are generally considered leaders in the historic development of large mine cooling systems.

Methods to Improve Mine Ventilation System Efficiency

development, examination of mine airway utilization and alternative ventilation methods. UNDERGROUND SHOPS . First, examine what is being done with the underground shop air. If it is being coursed directly to the returns there may be some potential to better utilize this, in most cases, relatively contaminant free air.

NPTEL :: Mining Engineering - An Introduction to ...

mine illumination. introduction and guidelines; glare, health and safety; heat and humidity. introduction. humidity and its measurement; psychrometers and psychrometric calculations; heat in underground mines - i; heat in underground mines - ii; heat in underground mines - iii; effects of heat on miners; heat indices; mine refrigeration; heat ...

Cooling underground mines with ice - Mining Magazine

KTI-Plersch explains the productivity gains of using ice instead of water as a means for cooling underground mines South African mines are some of the deepest in the world Underground Mining > Development

Underground cooling at gold mine | Aggreko

When the wet-bulb temperature in the Cobar mine climbed to 30°C, miners could only work safely underground for limited periods of time resulting in a loss of productivity. So Peak Gold Mines – knowing we had years of experience in the mining business and that we take the health and safety of all workers seriously – called us in to fix their seasonal temperature problem.

Cooling underground mines with ice - International Mining

Cooling underground mines with ice Posted by Matrix on 19th November 2015 Setting new standards for health, safety and energy-e­fficiency, Pierre Brisset of KTI-Plersch Kältetechnik, explains how ice cooling can enable sustainable productivity gains and profit consolidation.

Developments in the engineering of refrigeration ...

1-1-1984· Developments in the engineering of refrigeration installations for cooling mines J. van der Walt and E. M. de Kock Key words: mines, cooling, engineering Evolution dans la conception des installations frigorifiques pour le refroidissement des mines Au cours des derni~res ann&es a &t~ sp~cialement raise en ~vidence la n~cessit~ de r~duire la consommation d'~lectricit~ pour le …

Air cycle refrigeration system for cooling deep mines ...

1-3-1988· Most refrigeration plants for cooling mines use cold water. This is becoming uneconomical as mines get deeper and pumping costs increase. This Paper proposes an air cycle refrigeration system for use in deep mines to provide underground refrigeration without the …

"Current Developments and Challenges of Underground …

Publication Details. Amin Kamyar, Saiied Mostafa Aminossadati, Christopher Leonardi and Agus Sasmito, Current Developments and Challenges of Underground Mine Ventilation and Cooling Methods, in Naj Aziz and Bob Kininmonth (eds.), Proceedings of the 16th Coal Operators' Conference, Mining Engineering, University of Wollongong, 10-12 February 2016, 277-287.

Life-of-Mine Ventilation and Refrigeration Planning for ...

The mine is planned to be a large, deep and hot, block cave operation. RCM is currently undertaking a prefeasibility study for the project life-of-mine. In the course of this prefeasibility work, ventilation and refrigeration studies have been carried out to establish: • heat loads, cooling, ventilation and refrigeration requirements

A reverse Brayton cycle mine refrigeration system

A reverse Brayton cycle mine refrigeration system DL Millar 116 Underground Mining Technology 2017, Sudbury, Canada 1.1 del Castillo’s reverse Brayton cycle cooling system In 1988, del Castillo proposed implementation of an RBC mine refrigeration system by means of a

How Underground Mining Works | HowStuffWorks

Underground mines are the alternative to surface mines. Surface mines excavate from the top down, a method that can become inefficient at depths greater than about 200 feet (60 meters) [sources: Illinois Coal Association, De Beers].Undergrounds coal mines can drive 2,500 feet (750 meters) into the Earth and other types even deeper -- uranium mines can reach 6,500 feet, or 2 kilometers.

Location

CONTACT INFO