09-02-2013, 03:21 PM
HINDUSTAN ZINC LTD.,DARIBA MINE
HINDUSTAN ZINC LTD.pptx (Size: 4.21 MB / Downloads: 150)
INTRODUCTION ABOUT INDUSTRY
HINDUSTAN ZINC LTD. (HZL) is the only integrated Zinc manufacturer in India and owns captive Zinc mines that supply complete requirement of Zinc Concentrate for its smelters.
Rajpura Dariba Mine has annual ore production capacity of 0.90 million tonnes and achieved a production level of 21.96 kt of contained zinc and 5.35 kt of contained lead in FY 2010. Bulk concentrate production at Rajpura Dariba has resulted in significant recovery improvements in Zinc, Lead and Silver.
CERTIFICATION
The management system of Rajpura Dariba comprises of:
the Quality System ISO 9001:2008,
the Environmental System ISO 14001:2004 and the Occupational Health, Safety Management System OHSAS 18001:2007, SA 8000:2008 and 5S Certifications.
HISTORY AND MILESTONES
HISTORY-
Hindustan Zinc Limited was incorporated from the erstwhile Metal Corporation of India on 10 January 1966 as a Public Sector Undertaking.
MILESTONES-
2011
Commissioned 1.50 million tonnes per annum concentrator at Silver-rich Sindesar Khurd Mine
Commissioned 160 MW (80X2) Captive Power Plant at Dariba Smelting Complex
Around 48 MW addition in wind power generation capacity
KEY FINANCIAL ASPECTS
Revenue of Rs. 9,912 Crores and PBDIT of Rs. 6,454 Crores.
Highest ever production of Zinc-Lead Mined metal, Refined Zinc metal and Silver.
Return on capital employed (ROCE) continues to be strong at 56.06%
Earnings per share of Rs. 11.60.
APPLICATIONS OF DIFFERENT PRODUCTS
Uses of ZINC:-
Over 11 million tonnes of zinc is produced annually worldwide. Around 48% of the amount is used for galvanizing to protect steel from corrosion. Approximately 17% is used the production of zinc base alloys like die castings etc.
Uses of Silver:-
Silver is used in a number of varied applications like the most important uses of silver being the industrial and decorative uses, photography, and jewelry & silverware; together, these three categories represent more than 95 percent of annual silver consumption.
MINING AND DRILLING
BMCL established this Mines in 1991 with an estimated depth of 170m as Open Cast mines.
Initially, production capacity was 0.9 million tones/annum with strip ratio of 1: 4.5 .
Ore body has 15% metal content, out of which 13% is Zn and rest 2% is Pb.
Rock type of ore is GBSG i.e Garnate Biotite Siliminite Gneiss .
SECONDARY/TERTIARY CRUSHING
After Primary Crushing the ore is send to the secondary and tertiary crusher.
Crushed ore of size (-150mm), coarse ore storage is fed into 5nos.Reciprocating feeder through crushed feed conveyor the material is brought to double disc vibrating screen.