Navoi Mining & Metallurgical Firm (NMMC), the world’s fourth-largest gold producer, has inaugurated a significant new facility on the Zarmitan underground gold deposit: a 1,000 m deep vertical skip shaft with a 6.5 m diameter – the primary of its type in Uzbekistan’s mining historical past. This growth is a part of NMMC’s broader Funding program, which incorporates a number of strategic initiatives aimed toward increasing and modernising the corporate’s gold ore manufacturing capabilities.
The brand new shaft considerably will increase ore hoisting capability, reduces working prices, and has
already resulted within the creation of 90 new jobs. As soon as in full operation, the shaft will ship
roughly 1.4 Mt of ore yearly to Processing Plant No.4. The estimated
annual financial affect from the challenge is about US$1.5 million.
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As famous by Atabek Ravshanov, NMMC Chief Engineer: “The skip shaft is a vertical mine
shaft particularly designed for hoisting ore from underground workings to the floor. Its essential
perform is to allow quick, environment friendly, and secure transport of mined materials. At Zarmitan, ore from
numerous underground ranges is now gathered on the +240 m degree, from which it’s centrally
hoisted to the floor. The profitable commissioning of this shaft represents not solely a
technological development but additionally a landmark for Uzbekistan’s mining and metallurgical
sector – a real instance of contemporary engineering. Embracing cutting-edge applied sciences
stays considered one of our core priorities going ahead.”
This challenge consists of two shafts: the skip shaft and the cage shaft. The skip shaft is provided
with two 20 t ore bins, designed solely for hoisting ore to the floor. The cage shaft
facilitates personnel transport and gear supply throughout a number of underground ranges,
together with: +0.00 m, +60 m, +120 m, +180 m, +240 m, +270 m, +300 m, +360 m, +420 m and
+480 m.
Each shafts are fitted with superior data and communication techniques. Operations are
managed from a centralised operator station, enabling real-time monitoring of manufacturing
processes and exact monitoring of hoisting operations by automated information analytics. The
system can also be designed to detect and stop operational anomalies by way of early warning alarms
and diagnostic protocols, guaranteeing a excessive degree of security and reliability.
The challenge was delivered by the collaboration of international companions together with Czech firm Mine Building Alliance sro as the primary contractor, plus Ukrainian corporations NKMZ which equipped the hoist system itself together with the winder, and Preobrazovatel-Advanced which equipped the management system. They labored with NMMC, the Southern Mining Administration, and development groups from the Zarafshan Building Division and Promelektromontazh Belief, with technical help from specialists from Ukraine and Kazakhstan.
