chanderiya lead zinc project

12
[JLZIC Silver Jubilee Conference Lead, Zinc and Cadmium into the 90s LEAD ZINC SMELTER AT CHANDERIYA - CONCEPT TOWARDS REALIZATION S.N. Wazir, D.S. Sethi, T.C. Rajagopalan, M.K. Mallik & P.R. Chandna. Metalurgical & Engineering Consultants (I) Ltd., Ranchi. ABSTRACT Lead and Zinc are among the strategic non ferrous metals which find extensive use in important sectors of industries contributing to the growth of the nation. Our present dependence on import of Lead and Zinc is likely to continue and may be 77 percent and 60 percent respectively, by the turn of the century. To bridge the increasing gap between demand and indigenous production, HZL propose to set up an integrated project for the production of 70,000 t Zinc and 35,000 t Lead per annum based mainly on lead-zinc concentrates from Rampura-Agucha mines. Recovery of bypro ducts such as Silver, Gold, Cadmium, Mercury, Bismuth and Sulphuric acid is also planned. The proposed plant will be first of its type in India and fourth such plant in Asia. The plant is based on the pyrometallurgtcal route of extraction of Lead and Zinc simultaneously through Imperial Smelting ·Process. The important advantages of this process are the possible treatment of complex concentrates, lower energy consumption and less power requirement. Further refining of energy consumption and less power requirement. Further refining of lead and zinc has also been envisaged. Waste heat recovery from launder boiler and LCV gases and advanced automation and instrumentation will be the special features of the plant. MECON has been associated with this project from the preparation of Feasibility Report in 1982 and has now been entrusted with the implementation of the project for providing consultancy, detailed engineering, procurement, project management and site supervistcn. The project has been taken up for implementation in two phases within a total period of 48 months. While the Phase I of the project has been completed with the submission of Firm Cost Estimates, Phase II activities have been initiated so that the project is commissioned by early 1991. INTRODUCTION Due to the scarcity of nonferrous metals in the country and our dependence on import of these metals, the setting up of an integrated plant for extraction of lead and zinc becomes imperative. This wlll not only result in conservation of valuable foreign exchange but also aims towards self sufflclency in these metals. The first commercial .productton of lead started in India in 1942. The production of zinc could start only two and half decades later with the commissioning of two plants at Binanipuram and Debart. The present installed capacities for Lead and Zinc are of the order of 30.000 t/year and 99,000 t/year respectively. The country's present domestic demand for lead and zinc is being satisfied through imports to the extent of 67 percent and 40 percent respectively for these metals. Our dependence on import of Lead and Zinc is likely to continue and may amount to 77 percent and 60 percent, .respectively by the turn of the century. To bridge the increasing gap between demand and indigenous 7.1

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Chanderiya Lead Zinc Smelter - ISF - Pyro-metallurgical Project Management

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Page 1: Chanderiya Lead Zinc Project

[JLZIC Silver Jubilee Conference Lead, Zinc and Cadmium into the 90s

LEAD ZINC SMELTER AT CHANDERIYA- CONCEPT TOWARDS REALIZATIONS.N. Wazir, D.S. Sethi, T.C. Rajagopalan,M.K. Mallik & P.R. Chandna.Metalurgical & Engineering Consultants (I)Ltd., Ranchi.

ABSTRACTLead and Zinc are among the strategic nonferrous metals which find extensive use inimportant sectors of industries contributing tothe growth of the nation. Our presentdependence on import of Lead and Zinc islikely to continue and may be 77 percent and60 percent respectively, by the turn of thecentury.

To bridge the increasing gap between demandand indigenous production, HZL propose toset up an integrated project for the productionof 70,000 t Zinc and 35,000 t Lead per annumbased mainly on lead-zinc concentrates fromRampura-Agucha mines. Recovery ofbypro ducts such as Silver, Gold, Cadmium,Mercury, Bismuth and Sulphuric acid is alsoplanned.

The proposed plant will be first of its type inIndia and fourth such plant in Asia. The plantis based on the pyrometallurgtcal route ofextraction of Lead and Zinc simultaneouslythrough Imperial Smelting ·Process. Theimportant advantages of this process are thepossible treatment of complex concentrates,lower energy consumption and less powerrequirement. Further refining of energyconsumption and less power requirement.Further refining of lead and zinc has also beenenvisaged. Waste heat recovery from launderboiler and LCV gases and advancedautomation and instrumentation will be thespecial features of the plant.

MECONhas been associated with this projectfrom the preparation of Feasibility Report in1982 and has now been entrusted with the

implementation of the project for providingconsultancy, detailed engineering,procurement, project management and sitesupervistcn.

The project has been taken up forimplementation in two phases within a totalperiod of 48 months. While the Phase I of theproject has been completed with thesubmission of Firm Cost Estimates, Phase IIactivities have been initiated so that theproject is commissioned by early 1991.

INTRODUCTIONDue to the scarcity of nonferrous metals in thecountry and our dependence on import ofthese metals, the setting up of an integratedplant for extraction of lead and zinc becomesimperative. This wlll not only result inconservation of valuable foreign exchange butalso aims towards self sufflclency in thesemetals.

The first commercial .productton of leadstarted in India in 1942. The production ofzinc could start only two and half decadeslater with the commissioning of two plants atBinanipuram and Debart. The presentinstalled capacities for Lead and Zinc are ofthe order of 30.000 t/year and 99,000 t/yearrespectively. The country's present domesticdemand for lead and zinc is being satisfiedthrough imports to the extent of 67 percentand 40 percent respectively for these metals.Our dependence on import of Lead and Zinc islikely to continue and may amount to 77percent and 60 percent, .respectively by theturn of the century. To bridge the increasinggap between demand and indigenous

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Page 2: Chanderiya Lead Zinc Project

I ILZIC Silver Jubilee Conference Lead, Zinc and Cadmium into the 90s Iproduction, HZL propose to set up anintegrated project for the production of 70,000t zinc and 35,000 t lead per annum. With thesetting up of Chanderiya Lead Zinc Smelterinstalled capacities of these metals willincrease to 65,000 tZyear and 169,000 t/yearrespectively .

The proposed plant will be tirst of its type inIndia and fourth such plant in Asia. The plantis based on the pyrornetallurgtcal route ofextraction of Lead and Zinc simultaneouslythrough Imperial Smelting Process. Thoughthis process is comparatively new about 10-15% of World's primary Lead and Zinc isproduced through this process. Besidesproducing Lead and Zinc it is also proposed torecover by-products, viz., Silver, Gold,Cadmium, Mercury, Bismuth and Sulphuricacid. The refining of zinc would be carried outthrough process of electro-refining to producehigh quality Lead and recovering Silver, Goldand Bismuth. The proposed plant will havethe unique feature of generating electic powerof the order of9 MW, from Waste heat recoverysystems, viz., Launder boiler land LCV gases,whereby partly satisfying. its own requirementof electricpower.

MECON has been associated with this projectsince 1982 with the preparation of FeasibilityReport. MECON is now involved in carryingout the consultancy and engineering servicescovering, acceptance of basic engineering,preparation of firm cost estimates, detailedengmeering.. procurement, supervision ofconstruction, erection and commissioning,and project management for the project. Theproject implementation is planned to becarried out in two phases within a total periodof 489 months.

Phase I The activities consisted of:- Basic engineering and

firming up of scopeProcurement activitiesbefore commitmentPreparation of firm costestimates

P e II will consist of:ProcurementErection/ ConstructionCommissioning

For expedttious implementation, the projecthas been divided into 15 turnkey packagescovering detailed engineering, procurement,fabrication, construction, installation andcommissioning by Indian contractors. Theinterface worked between various turnkeypackages and other work for the project arebeing carried out on Non-turnkey basis. Thevartous activities for the total implementationof the project are being monitored through thehelp of network. Budgeting and cost controltechniques will also be utilized to control theproject cost and time and to take correctivemeasures at the early stages of the project.

The Phase I of the project has already beencompleted and Phase II activities are expectedto be started soon so that the project iscommissioned by early 1991.

SALIENT FEATURES OF THE PROJECTThe Lead Zinc Smelter Complex beingproposed near Chittorgarh will have nominalcapacity of 70,000 t/year of Zinc metal and35,000 t/year of Lead metal. The plant will bebased on Imperial Smelting Process. BesidesLead and Zinc, it is proposed to recoverimportant by-products like Cadmium, Silver.Gold. Bismuth and Mercury Metals along withSulphuric acid. The overall process flowdiagram is shown in Figure I. The newsmelting capacity has been based on theutilisation of the concentrates obtained mainlyfrom Rampura-Agucha Mines, Rajasthan.Rich deposits of lead-zinc ore have beendiscovered recently at Rampura Aguchaestimated to be 60.35 million tonnes with13.5% zinc and 1.9% lead metal. The plant isproposed to be located at a site 10 Km north ofChittorgarh town near Chanderiya village.

ProcessImperial Smelting Process. a pyre-metallurgical process. has been adopted forthe combined production of lead and zinc atChanderiya. The Imperial Smelting Processaccounts for 10 to 15 percent of the world zincand lead output. Imperial SmeltingTechnology is a well established process routein operation since the year 1960. Presently 13plants based on this process are in operationin 11 different countries.

The Imperial Smelting Process has the

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ILZIC Silver Jubilee Con erence Lead, Zinc and Cadmium into the 90sfollowing advantages as compared to thecombination of electrolytic zinc andconventional blast furnace lead smeltingroute.

Increased flexibility to treatingconcentrates with higher impurities

Lower overall energy requirement pertonne of zinc and lead. .

Lower electric power requirement.

Lower capital investment andoperating costs.

Higher by-product recovery .

The proposed plant will include Raw MaterialHandling Plant, Sinter and Gas CleaningPlant. Sulphuric Acid Plant, Imperial SmeltingFurnace and Power Generation. Zinc Refinery.Lead Refinery. Precious Metal Recovery Plantand Cadmium Plant.

For the production of Zinc and Lead throughImperial Smelting Furnace .processapproximately 400.000 tonnes of various rawmaterials and Metallurgical Coke will behandled through elaborate system ofunloading. storing & reclamation. One monthstorage facilities for zinc and leadconcentrates have been envisaged. whereasfor metallurgical coke it will be for threemonths requirement.

The lead and zinc concentrates along withlime stone. return sinter fines and otherrecycle materials will be agglomerated in anupdraft sinter machine. It has been envisagedto use oxygen in the sintertng operation foroperational improvement. better sulphurburning rate. and reduction in volume ofgases with sulphur burning rate. andreduction in volume of gases with consistencyin S02 concentrations. The smtertng processhas also been envisaged to be closelymonitored through a microprocessor basedcontrol system through a central controlroom.

Sinter gases approximately 94.000 Nm3/hfrom the sinter machine will be cleaned in gascleaning plant, comprising of dry and wet gas

cleaning system. During the cleaning lead.zinc. mercury and cadmium dust arerecovered before the gas is sent to sulphuricacid plant.

The Sulphuric Acid plant has been designedbased on double conversion and doubleabsorption (DCDA) process route for theproduction of sulphuric from sinter gasescontaining S02 and would ensure S02 contentat the outlet of the stack limited to 2.7 kg/t ofH2 S04' About 580 t/rlay of 98.5% H2S04willbe produced from the sinter gases containing5.8% S02'

ISF Plant will comprise of the chargepreparation and furnace charging. furnace.condenser and Cowper Stoves. gas washingand LCV distribution system and Brtquetttngplant. .

Lead Zinc Sinter. Briquettes and MetallurgicalCoke in hot condition are charged in ImperialSmelting Furnace from the top and hot blast isinjected through tuyeres located at the bottomof the furnace. The pre-heating of coke andblast air for the furnace will be accomplishedin coke preheaters and regenerative. typeCowper Stoves respectively using LCV gasesas;fuel. The metallic zinc formed as vapour willpass through the furnace off take into the leadsplash condenser. These zinc vapours will becondensed by shock cooling the gases with aspray of finely divided droplets of leadproduced by the rotors rotating at high speed.The lead with absorbed zinc. will be pumpedfrom the condenser to the launders where leadzinc is cooled to separate out lead and zinc.The cooling will be by boiler tube banksimmersed in the launder. The steam generatedfrom this boiler as well as the steam generatedfrom LCV gases will be utilised for generating9 MW of electric power thus partly satisfyingthe requirement of electric power for the plant.A duel fired boiler; two turbo. generators.heating & super heating elements. feed pumpsalong with other necessary facilities have beenenvisaged for both these systems. Theschematic diagram of launder boiler powergeneration is shown in Fig. 2.

The briquettmg plant will condition thevarious recycled fines and drosses fromvarious plant units into briquettes. The

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I ILZIC Silver Jubilee Conference Lead, Zinc and Cadmium into.the 90s Ibriquettes thus produced will be sent tosmelting furnace.

The Imperial Smelting Furnace will haveconsiderable slag fall and therefore acontinuous tapping system has beenenvisaged to ensure not only easy slaghandling but also loss of byproducts metalsinto slag will be reduced. The block diagram ofISF plant is shown in Figure 3.

Furnace Zinc from the ISF will be refined in arefluxmg plant which will consist of leadcolumns, cadmium columns and babycolumn. Half the output will be produced asGOB Zinc with 98.5% Zinc which is used bygalvanizers directly and other half wtll bedistilled further to produce 99.99% puritySHG Zinc needed for special alloy applicationsfor which imports of zinc are made.

One of the important features of the zincrefluxmg process is the use of silicon carbidetrays for distillation of SHG Zinc and cadmiumfrom impure zinc. These super-imposed trayswith staggered openings at the bottomcomprise a column. OWing into excellentproperties of very high resistance to thermalshock backed by very good thermalconductivity these trays make an idealdistillation unit working at high temperature.

Refining of impure lead bullion from ImperialSmelting Furnace has been envisaged to beelectro-refined based on Bett s Process.Special features of a modern lead refineryinclude large cells of polymer concreteconstruction, continuous anode castingmachine, cathode sheet casting andpreparation machine, anode & cathodepreparation conveyor, spent anode washingand slime removal cranes, etc. The variousadvantages of electrolytic lead refinery overpyrometallurgtcal route are automation of theof the plant, better environmental control,higher quality refined lead, increasedrecoveries of lead and byproducts, simplicityof starting up & shutting down the process.Flowsheet for lead refinery is given in Figure 4.

It has been envisaged to process dore metalproduced from lead refinery electrolytically togold and silver bullion.

Cadmium plant has been envisaged to recovercadmium from fumes recovered in hot gasprecipitator of sintertng plant, through IonExchange Process. The Ion-exchange resin willexchange cadmium from the acidic liquor. Thecaustic cadmium will be finally produced byregenerating the Ion-exchange column,cementation of liquor thus produced andmelting and casting of the cadmium sponge.These cadmium plates are sent to ZincRefinery plant for further refining to cadmiummetal in the baby column.

For this project, microprocessor basedDistributed Digital Control System (DDCSystem) have been envisaged for three majorunits viz., Sinter Plant, Imperial SmeltingFurnace and Power Plant.

The DDC System has major advantages overthe conventional system a) better man/machine communication, b) higher systemreliability due to high mean time betweenfailure of the system, c) modular construction,d) better system expandablltty., e) maximumconfiguration flexibility, 0 self-diagnosticfeature making the system maintenance easyand faster, g) controllers have self tunningfeature reducing system stabilization time, h)data storage facilities make nost trip analysispossible, t) redudant configuration is possibledue to use of microprocessors in various sub-systems, j) ease of communication withSimilar systems and future productionplanning computer. The typical configurationdiagram is shown in Figure 5.

The plant has been envisaged to work onimported coke for first five years and thereafter on indigenous coke. The plant capacitiesfor the proposed plant are based on utilizationof Indian coke. There will be an increase inoutputs if imported coke with low ash contentis used as shown in the Table 01.

IMPLEMENTATION CONCEPTThe project has been conceived to beimplemented in two phases. The Phase Iconsisting of pre-investment activities to firmup the scope of work and prepare firm costestimate for submission to the Government.The Phase II activities of total implementationof the project will start after the approval. The

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I ILZIC Silver Jubilee Conference Lead, Zinc and Cadmium into the 90s ITable - 1

PROPOSED PLANT CAPACITIES

Product Capacity (t/yr) Increasedoutput

due to use ofimported

coke (t/yr)

ZincLeadCadmiumSilverGold (Kg)BismuthMercurySuiphuric Acid

70.00035.000

37574601030

1.83.000

82.00039.800

41782681133

1.83.000

Phase I activities have already been completedand the Firm Cost Estimates were preparedand submitted as per schedule. The variousactivities as envisaged for the both phaseswould be as follows.

Phase - IThe major tasks of the Phase-I of the Projectconsisted of: a) Receipt of Know-how andBasic Engineering Packages. b) Preparation ofbasic engineering package. c) Preparation oftender documents for turnkey packages basedon know-how and basic engineering. d)Shorthsttng Turnkey Contractors throughopen tender, e) preparation of detail drawingsand estimation for non-turnkey/interfaceareas. service building and infrastructure. 1)Technical and commercial evaluation of offers,final negotiation with tenderers andrecommendations. g) Part of enabling works.and. h) Preparation of firm cost estimates.

Phase -IIThe activities during this phase will include: a)Placement of order, b) Detail engineeringservices by contractors\consultants. c)construction and erection. and d)commissioning and stabilisation.

The implementation concepts for the projectare depicted in Figure 6.

Project schedule envisaged investmentdecision by 3rd. quarter of 1988 to enableplacing of firm orders to turnkey contractors.It was also planned to complete techno-commercial negotiations for major contracts/

equipment supplies so as to be ready torelease order immediately on receipt ofinvestment decision. Based on this approach.project is scheduled to be completed in fouryears as per implementation scheduleindicated in Figure 7.

The know-how and basic engineering for theproject will be supplied by M/s Davy McKee.U.K. They are also providing technicalassistance for (a) preparation of firm costestimates. (b) detailed engineering. (c)Inspection of critical equipment. (d)construction and commissioning of the plant.

The know-how for the various planttechnologies were obtained from the followingknow-how suppliers:

1. RawMaterialHandling Lurgt/Davy2. Sintertng Gas Cleaning Lurgf/Norzlnk

& MercuryRemoval3. ImperialSmelting ISPL

Furnace4. Sulphurtc Acid Davy5. Lead Refinery COMINCO/Davy6. Precious Metals Davy7. Cadmium ISPL8. ZincRefinery MECHIM9. PowerGeneration Davy/SHG

MECON is providing consultancy. detailengineering. procurement. projectmanagement. and site supervision. For timelyimplementation of the project it has beenbroadly split into two areas : Turnkey andNon-turnkey and would be executed by IndianCompanies. The major units of the projectwere divided into 15 turnkey packages asgiven below:

1. Raw Material Storage and HandlingPlant

2. Sintering and Gas Cleaning Plant3. Imperial Smelting Furnace Plant4. Sulphurtc Acid Plant5. Lead Refinery and Minor Metals Plant6. Precious Metal Recovery7. Zinc Refmery8. Cadmium Plant9. Copper Recovery Plant10. Effiuent Treatrrient Plant11. Power Distribution and Lighting12. Auxiliary Power Generation and D.G.

Set

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I ILZIC Silver Jubilee Conference Lead, Zinc and Cadmium into the 90s I13. Water Supply System14. Utility System15. Telecommunication

The project is being implemented on theconcept of turnkey contract package coveringdetailed engineering. procurement.fabrication. construction. installation andcommissioning by contractors. The interfacebetween various packages and other work fo,: .the project is being carried out on non-turnkey basis.Based on the above conceptIndian companies of repute were technicallyand commercially evaluated and wereshortlisted for submitting their bids forvarious packages.

The design concept for various plant/unitswere discussed during various designconferences held at Udaipur and Stockton.U.K. with the representatives of the differentknow-pow suppliers. The preliminary basicengineering was obtained from foreign know-how suppliers starting from July. 1987.

The technology being new and introduced forthe first time in the country. it was decidedthat instead ofgetting the complete know-howand basic engineering. scrutinizing the sameand then dissipating it to the tenderer for theirperusal. the preliminary information obtainedafter scrutinizing was passed on to thetenderers immediately so that the same isassimilated by them at early stage itself. Theeffect of this decision was that the tendererswere able to understand the technology andstarted their preliminary work quite inadvance. The tenderers came out with numberofqueries on technology and design and thesewere sorted out from time to time. Prebidconferences were held with the parties fordifferent turnkey packages wherein alloutstanding points. both technical andcommercial were clarified. This helped to agreat extent in freezing/firming up the scopeofwork within a reasonable short time-span.

Based on the technical and commercial bidsobtained and discussion held with thetenderers. techno-commercial evaluation werecarried out. This formed the basis of projectcosts for the furnished by foreignconsultants.These two capital costs were integrated toprepare the project cost estimates. The

procedure thus followedduring the Phase I ofthe project enabled submission of firm costestimates as per schedule. The Phase IIactivities have already been initiated so thatthe project is commissioned by early 1991.

Project Planning And MonitoringThe project planning monttortng for theproposed project willbe executed by a group ofengineers of Project Planning. MonitoringandControl Cell. The group will organise anefficient reporting system from the site officeas wellas formvarlous other agencies involvedin the execution of the project. The projectplanning and monitoring system is depicted inFigure 8. By this system. stringent controlswillbe exercised and corrective measures willbe taken at the early stages of the project atappropriate time to prevent cost and timeoverrun.

The planning. monitoring and controltechniques are closely related to the physicalprogress ofwork and financial expenditure forthe work completed. To achieve the aboveobjective. network analysis will be used tokeep a close watch on the physical progress ofthe work at various stages in relation to theallotted time and cost.

The task of the planning and control of theproject willbe:

to establish a master plan for theprojectto design and establish an informationsystem for efftctent control of theproject.to coordinate the activities of thevarious agencies involved in theimplementation of the project.to hold follow-up master planningmeetings.to establish periodic reporting systemfor the project progress.

Project planning. monitoring and controlgroup will play a dynamic role by keeping incontinuous contact with Hindustan Zinc Ltd..overseas know-how suppliers. turn-keycontractors and other agencies. The first taskwill be to prepare a master PERf network.which would enable monitoring the progressof the project with respect to time and cost.

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financial matters will cover two areas:I ILZIC Silver Jubilee ConferenceEach of the turn-key contractors will be askedto provide an area PERf network for theiractivities and a master network will beprepared incorporating important activitiesfrom each PERf network as well as otheractivities which will not be included under theturn-key suppliers' scope. Preparation ofspecifications, tendering, tender evaluation,order placement, equipment supply, detaileddrawings, construction, erection andcommissioning will all be covered in theirlogical sequence and inter-dependence in themaster network.

With the initial plan flnalised and approved,control will be achieved by reviewing thephysical progress periodically and comparingwith the target. The periodicity of the review ofthe progress will be fixed in advance. Themonitoring will be based on efficient reportingsystem to be organised so that up-to-dateinformation is available from construction siteas well as from various agencies. The groupwill prepare monthly reports describingprogress of the project and advise correctiveaction to be taken as follows:

• Highlighting short-falls, bottlenecks orconstraints.Examining the effect of these short-falls and problems on projectcompletion as per estimates of timeand also inter-related and inter-dependent programmes.Providing feed-back data indicatingcorrective actions to put lagging areasback on course.Reviewing the corrective actions inresponse to feed-back instructions.

*

The various reports prepared will highlight thefollowing:

List of activities due in next period forplanning and progress reportingList of critical activitiesList of activities are-wise/agency-wiseList of activities in progressList of activities, which have beendelayed, etc.

Budget and Cost ControlThe Project Monitoring and Control covering

Lead, Zinc and Cadmium into the 90s

Project Budget and Funds PlanningProject Cost Control

The cell will also have experienced costengineers/techno-economists to monitor theexpenditure and maintain cost control. Thetask of the budget and cost control activity willbe as follows:

To establish general procedures on thematters of budget and cost control forthe projectTo consolidate the budget for eachpackage into an integrated projectbudgetTo estimate and monitor overheadexpenditure of the projectTo monitor the expenditure from eachareaTo establish annual budget and fundsrequirement for the projectTo consolidate the contact variationsand establish over-runs/under-runsfor the projectTo co-ordinate release of payment fordifferent contractors.

CONCLUSIONSOn successful completion of the project mostof the demand for Lead and Zinc in thecountry will be met through indigenousproduction. It is expected that with thecommissioning of the plant, the demandsatisfaction level for Lead and Zinc willincrease to 64 percent and 85 percentrespectively and also make the country lessdependent on import of these metals.

Phase I of the project has already beencompleted as per schedule with the.submtsston of the Firm Cost Estimates. PhaseII activities have already been initiated and themethodology adopted would enablecommissioning of the pro]ect by early 1991.

ACKNOWLEDGEMENTMECON thankfully acknowledge M/s.Hindustan Zinc Limited for the informationprovided on proposed Chandertya Lead ZincSmelter for preparation of this paper.

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Page 8: Chanderiya Lead Zinc Project

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Page 9: Chanderiya Lead Zinc Project

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Page 10: Chanderiya Lead Zinc Project

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Page 11: Chanderiya Lead Zinc Project

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9 'LACl •• [II' Of sue·OROlR5 , , I I ITTT

10 ""UL TUI!AL fA BA'LA T\ ON WORK I11 'UPPlT OF MECHANICAL [QUIP •• I H T ,12 I lJPPl , Of H[C '.'LAL (QUIP •• lNT ,

13 N.~I(iH & lUPPLY Of' '''POR1(1) [QUIP •• INTI--- --.,--. - .

14 IrCAlO."O" WOA~ i II I , I

15 I I jIT I

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16 [RlCIIOIi Of GTRUCTURl5 i . I I T I

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19 '" tA LIUN. TlST'H~ AND I i' ICO •••• '56'OH'''(. , .~

FIGURE NO-7

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Page 12: Chanderiya Lead Zinc Project

8 I a I 4 3 I 2 I --,1:>3W 'oN '!)1I0 I --

.OVERALL PROJECT ISCHEDULE &.> KEY

I IMILESTONE EVENTS

COST DATA nnnnAnnnnn-

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HAMI DATE CHID 04Tt CHJ.NQERIYA • (dft) firfm/Ii. . FIG - 8 LAED ..,ZINC $MELTER METALlUAGICAL&ENGINEERlNG It.

010" PRC DG lnP CONSULT ANTS (lNOIAI liMITEDORWN JAIN ~ PROJECT PLANNING

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10110, NO~~D O~G. No. HKI I"[',,,."C(. .IV,.,ON.'------_.- • I • I • I J I 2 I 1_.-