Ore
mining continues to follow historic trends, but more recently toward
higheraltitudes. Today, altitudes of 3,000 metersto 4,000 meters
abovesea level are by no means unusual for new copper mines. This
places very heavy stress on personnel.At high altitudes, it is
recommended to install onlythose equipmentswhich are directly
required for mining the ore.A very attractive solution to this
problem is the use of conveyors with downwardbelt mechanisms, which
transport the mineral from the mineto the concentrator.
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The
bidirectional nature of the power flow of electrical machinespermits
the transformation of the potential energy of theore in the conveyor
into electrical energy that can be regeneratedto the electrical
supply of the mine, generating importantenergy savings.When the
amount of ore handled is in the range of100,000 tons/day, power
produced by a conveyor may surpassseveral megawatts and must be
delivered to the electricalutility.A downhill conveyor is mounted
between the quarry areaand the raw material section of the plant.
Because of the operational requirements, the drive is to beadjustable
in speed, and has to be capable of regenerating the power on the
downhill section.All operating processes nowadays are monitored, with
sophisticated control systems. A huge advantage asserted for Active
Front End (AFE) technology is the fact that it is network friendly.
Rapid
augmentation in the high-altitude metal mining industry combined with
increased demand of metals for construction and other industrial
applications, make up for growth drivers for regenerative conveyors.
Moreoveractive front end solutions result in less stress for
personnel due to high altitudes, and theequipment does not need to be
highly derated. Despite the positive growth, the industry has been
facing certain restrictions in terms of mining extraction methods and
the extent of extraction allowed. Government regulations have been
put into place over concerns of ecological imbalance and
environmental hazards that excavation and mining of metals and
non-metals has caused over the years. Mining has had a major impact
on agricultural lands as well. Intensive capital requirement and
availability of expertise for operations are also some of the factors
that have hindered the progress of mining, thereby reducing the
demand for regenerative conveyors. Despite all the limitations, new
opportunities lie in store. With the advent of new eco-friendly
mining technologies, metal mining could see a spur of growth in the
near future.
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For
conveyors generating several megawatts of energy per day,
medium-voltage drives must be considered.At this voltage level,
converter topologies can be segmented based on the type of drive
installed, viz. cyclo-converters, current-source inverters
(CSIs),three-level voltage-source inverters (VSIs), and
cascadedmultilevel (CML) inverters.Conveyors with longer belt length
have proven to be a challenge for applications involving drive and
control techniques. Depending on material to be transported and
regional characteristics, a customized drive system must be installed
for each separate condition. In certain areas these drive systems
have to be selected based on standards set by local environmental
agencies as well.
Geographically,
demand for regenerative conveyors is concentrated in mining hotspots
across the globe. Most of the world’s mining and production of
metals is carried out in Australia in the AsiaPacific region followed
by Sri Lanka, Myanmar Thailand, Laos, Malawi and Cambodia. The state
of Montana and Arizona in the U.S. lead the market in the North
American region. No significant deposits or mines exist nor have they
recently been discovered in Europe; hence mining activities there are
limited. The African region also boasts a significant metalextraction
dominated by Tanzania, Kenya, Nigeria, Madagascar and South Africa.
A
few companies involved in the manufacturing of regenerative conveyors
for metal mining include Dos Santos International LLC, RWE Power
International LLC, Conveyor Dynamics, Inc., Calsun Materials Handling
(Pty) Ltd., Siemens AG, Sandvik AB, Tenova S.p.A. and ThyssenKrupp
Industries India.
This
research report analyzes this market on the basis of its market
segments, major geographies, and current market trends. Geographies
analyzed under this research report include
- North America
- Asia Pacific
- Europe
- Middle East and Africa
- Latin America
This
report provides comprehensive analysis of
- Market growth drivers
- Factors limiting market growth
- Current market trends
- Market structure
- Market projections for upcoming years
This
report is a complete study of current trends in the market, industry
growth drivers, and restraints. It provides market projections for
the coming years. It includes analysis of recent developments in
technology, Porter’s five force model analysis and detailed
profiles of top industry players. The report also includes a review
of micro and macro factors essential for the existing market players
and new entrants along with detailed value chain analysis.
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