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India
Sindesar Khurd Mine

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 Location:
3.5 km SE from Relmangra, India

  Address:
Yashad Bhawan
Udaipur
India
313004
Phone  ...  Subscription required
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Fleet
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeUnderground
Commodities
  • Zinc
  • Lead
  • Silver
Mining Method
  • Blast Hole Stoping
  • Paste backfill
Processing
  • Flotation
Mine Life7.7 years (as of Jan 1, 2018)


Owners

Source: p. 6
CompanyInterestOwnership
Government of India 29.5 % Indirect
Vedanta Resources plc. 42.31 % Indirect
Hindustan Zinc Limited (HZL) owns and operates a fully integrated zinc-lead business. HZL is one of the world's largest integrated zinc-lead producer by volume. Vedanta Limited, an India-listed susidiary of Vedanta Resources Limited, owns 64.9% of the share capital of HZL, while the Government of India remains an equity partner and holds a 29.5% stake. HZL is listed on Indian stock exchanges (NSE and BSE).

Deposit Type

  • Sediment-hosted


Summary:

The Sindesar Khurd mine lies on the same geological belt as the Rajpura Dariba mine. The mine is approachable from Rajpura Dariba mines by road.

The mineralization has been traced over almost 2.5 kilometers along strike and 1.3 kilometre vertical extension. In the mine area, dip is steep westerly, while the dip turns into easterly direction in the lower-southern part of the deposit. The current mine block extends over 1,500 meters along strike and up to 420 meters depth extension.

The deposit has been drilled to a depth of approximately 1,300 meters below surface and the ore body is traced over approximately 2 kilometers along the strike with a 1,100 meters vertical extension. While the deposit is still open in depth in the southern extension of the present mine block, the area below the mine block and towards the north extension only has narrow and low to moderate grade mineralization intersected.


Mining Methods

  • Blast Hole Stoping
  • Paste backfill


Summary:

The mine was initially opened as a satellite of Rajpura Dariba Mine. It is located 82 kms north-east of Udaipur, in the State of Rajasthan in India. It is a high silver content mine and has a uniform ore body with good zinc and lead grade.

Access to the mine is presently through declines (North and South) and an underground shaft. Mining method is blast hole open stoping with filling.

The current mine block extends over 1,500 metres along strike and up to 420 metres depth extension.

SKM started operations in 2006 and has seen several phases of expansions from 0.3 million MT to its current capacity of 6.0 million MT of ore, making it the largest underground mine in India. Its reserve & resource grade is 6.2%. SKM consists of multiple standalone deposits, or auxiliary lenses leading to three standalone production centres at present. The mine is currently producing from the main lens, with 3.5 million MT per annum capacity & SKA2 and SKA6 lenses with total capacity of 2.5 million MT per annum. SKM’s expansion has significantly contributed to the Company’s integrated lead and silver production.


Crushing and Grinding


Processing

  • Flotation

Source: Subscription required

Summary:

Ore produced from the mine is treated at 2.0 mmtpa beneficiation plant commissioned in 2011 at Sindesar Khurd. Benefication plant has undergone debottlenecking in January 2015 to increase its capacity from 2 to 2.8 mtpa at Sindesar Khurd.

The ore is crushed at the surface and transported to the beneficiation plant for further crushing; milling; and flotation process. Lead and zinc concentrates are sent to their respective high rate thickeners installed separately for lead concentrate and zinc concentrate generated from the concentrator. Tailing dewatering and disposal section comprises of hydro cyclone, tailing thickener, neutralization tank, pumping of tailing to tailing pond and reclaimed water pumping. Lead and zinc concentrates are thickened, filtered and stored before they are sent to HZL’s smelters.

During the 2021 year, our graphite floatation system was commissioned at Mill 3 of Sindesar Khurd Mines, which will enhance the smelter throughput and bolster recovery.

Recoveries & Grades:

CommodityParameter2021202020192018201720162015
Zinc Head Grade, %  ......  Subscription required  ......  Subscription required  ......  Subscription required3.943.853.93.6
Lead Head Grade, %  ......  Subscription required  ......  Subscription required  ......  Subscription required2.092.042.21.9
Zinc Recovery Rate, %  ......  Subscription required  ......  Subscription required  ......  Subscription required90.8919189.8
Zinc Concentrate Grade, %  ......  Subscription required  ......  Subscription required  ......  Subscription required49.850.951.5
Lead Recovery Rate, %  ......  Subscription required  ......  Subscription required  ......  Subscription required87.888.18986.8
Lead Concentrate Grade, %  ......  Subscription required  ......  Subscription required  ......  Subscription required57.455.853.2

Production:

CommodityProductUnits2021202020192018201720162015
Zinc Metal in concentrate M lbs  ......  Subscription required  ......  Subscription required  ......  Subscription required359258201144
Zinc Concentrate kt  ......  Subscription required  ......  Subscription required  ......  Subscription required327231177127
Lead Metal in concentrate M lbs  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Lead Concentrate kt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Operational Metrics:

Metrics202120202019201820172016
Ore tonnes mined  ......  Subscription required  ......  Subscription required5,310,794 t4,500,000 t3,665 kt2,970 kt
Annual milling capacity  ......  Subscription required  ......  Subscription required6.2 Mt2.8 Mt2.8 Mt
Annual mining capacity  ......  Subscription required  ......  Subscription required4.5 kt3.75 Mt3 Mt
Tonnes milled  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Reserves at March 31, 2021:

CategoryTonnage CommodityGrade
Proven & Probable 45.3 Mt Zinc 3.3 %
Proven & Probable 45.3 Mt Lead 2.1 %
Proven & Probable 45.3 Mt Silver 105 g/t
Measured & Indicated 46.7 Mt Zinc 3.9 %
Measured & Indicated 46.7 Mt Lead 2 %
Measured & Indicated 46.7 Mt Silver 99 g/t
Inferred 19.5 Mt Zinc 3.5 %
Inferred 19.5 Mt Lead 2.1 %
Inferred 19.5 Mt Silver 113 g/t


Heavy Mobile Equipment as of May 2, 2022:
HME TypeModelSizeQuantity
Loader ....................... Subscription required 18 t ....................... Subscription required
Truck (underground) ....................... Subscription required 50 t ....................... Subscription required
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Sep 21, 2021
....................... Subscription required ....................... Subscription required Subscription required Sep 21, 2021
....................... Subscription required ....................... Subscription required Subscription required Sep 21, 2021
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
Other 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
Annual Report 2018
Annual Report 2018
Annual Review 2018
Annual Report 2017
Annual Review 2017
Other 2017
Annual Review 2016
Annual Report 2015
Annual Review 2013
Subscription required - Subscription is required.

Aerial view:

Subscription required - Subscription is required.

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