Chanderiya Lead Zinc Project

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

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Chanderiya Lead Zinc Project

  1. 1. [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 implementation of the project for providing Lead and Zinc are among the strategic non consultancy, detailed engineering, ferrous metals which find extensive use in procurement, project management and site important sectors of industries contributing to supervistcn. the growth of the nation. Our present dependence on import of Lead and Zinc is The project has been taken up for likely to continue and may be 77 percent and implementation in two phases within a total 60 percent respectively, by the turn of the period of 48 months. While the Phase I of the century. project has been completed with the submission of Firm Cost Estimates, Phase II To bridge the increasing gap between demand activities have been initiated so that the and indigenous production, HZL propose to project is commissioned by early 1991. set up an integrated project for the production of 70,000 t Zinc and 35,000 t Lead per annum INTRODUCTION based mainly on lead-zinc concentrates from Due to the scarcity of nonferrous metals in the Rampura-Agucha mines. Recovery of country and our dependence on import of bypro ducts such as Silver, Gold, Cadmium, these metals, the setting up of an integrated Mercury, Bismuth and Sulphuric acid is also plant for extraction of lead and zinc becomes planned. imperative. This wlll not only result in conservation of valuable foreign exchange but The proposed plant will be first of its type in also aims towards self sufflclency in these India and fourth such plant in Asia. The plant metals. is based on the pyrometallurgtcal route of extraction of Lead and Zinc simultaneously The first commercial .productton of lead through Imperial Smelting ·Process. The started in India in 1942. The production of important advantages of this process are the zinc could start only two and half decades possible treatment of complex concentrates, later with the commissioning of two plants at lower energy consumption and less power Binanipuram and Debart. The present requirement. Further refining of energy installed capacities for Lead and Zinc are of consumption and less power requirement. the order of 30.000 t/year and 99,000 t/year Further refining of lead and zinc has also been respectively. The country's present domestic envisaged. Waste heat recovery from launder demand for lead and zinc is being satisfied boiler and LCV gases and advanced through imports to the extent of 67 percent automation and instrumentation will be the and 40 percent respectively for these metals. special features of the plant. Our dependence on import of Lead and Zinc is likely to continue and may amount to 77 MECON has been associated with this project percent and 60 percent, .respectively by the from the preparation of Feasibility Report in turn of the century. To bridge the increasing 1982 and has now been entrusted with the gap between demand and indigenous 7.1
  2. 2. I ILZIC Silver Jubilee Conference Lead, Zinc and Cadmium into the 90s I production, HZL propose to set up an For expedttious implementation, the project integrated project for the production of 70,000 has been divided into 15 turnkey packages t zinc and 35,000 t lead per annum. With the covering detailed engineering, procurement, setting up of Chanderiya Lead Zinc Smelter fabrication, construction, installation and installed capacities of these metals will commissioning by Indian contractors. The increase to 65,000 t Zyear and 169,000 t/year interface worked between various turnkey respectively . packages and other work for the project are being carried out on Non-turnkey basis. The The proposed plant will be tirst of its type in vartous activities for the total implementation India and fourth such plant in Asia. The plant of the project are being monitored through the is based on the pyrornetallurgtcal route of help of network. Budgeting and cost control extraction of Lead and Zinc simultaneously techniques will also be utilized to control the through Imperial Smelting Process. Though project cost and time and to take corrective this process is comparatively new about 10- measures at the early stages of the project. 15% of World's primary Lead and Zinc is produced through this process. Besides The Phase I of the project has already been producing Lead and Zinc it is also proposed to completed and Phase II activities are expected recover by-products, viz., Silver, Gold, to be started soon so that the project is Cadmium, Mercury, Bismuth and Sulphuric commissioned by early 1991. acid. The refining of zinc would be carried out through process of electro-refining to produce SALIENT FEATURES OF THE PROJECT high quality Lead and recovering Silver, Gold The Lead Zinc Smelter Complex being and Bismuth. The proposed plant will have proposed near Chittorgarh will have nominal the unique feature of generating electic power capacity of 70,000 t/year of Zinc metal and of the order of9 MW, from Waste heat recovery 35,000 t/year of Lead metal. The plant will be systems, viz., Launder boiler land LCV gases, based on Imperial Smelting Process. Besides whereby partly satisfying. its own requirement Lead and Zinc, it is proposed to recover of electricpower. important by-products like Cadmium, Silver. Gold. Bismuth and Mercury Metals along with MECON has been associated with this project Sulphuric acid. The overall process flow since 1982 with the preparation of Feasibility diagram is shown in Figure I. The new Report. MECON is now involved in carrying smelting capacity has been based on the out the consultancy and engineering services utilisation of the concentrates obtained mainly covering, acceptance of basic engineering, from Rampura-Agucha Mines, Rajasthan. preparation of firm cost estimates, detailed Rich deposits of lead-zinc ore have been engmeering.. procurement, supervision of discovered recently at Rampura Agucha construction, erection and commissioning, estimated to be 60.35 million tonnes with and project management for the project. The 13.5% zinc and 1.9% lead metal. The plant is project implementation is planned to be proposed to be located at a site 10 Km north of carried out in two phases within a total period Chittorgarh town near Chanderiya village. of 489 months. Process Phase I The activities consisted of: Imperial Smelting Process. a pyre- - Basic engineering and metallurgical process. has been adopted for firming up of scope the combined production of lead and zinc at Procurement activities Chanderiya. The Imperial Smelting Process before commitment accounts for 10 to 15 percent of the world zinc Preparation of firm cost and lead output. Imperial Smelting estimates Technology is a well established process route in operation since the year 1960. Presently 13 P e II will consist of: plants based on this process are in operation Procurement in 11 different countries. Erection/ Construction Commissioning The Imperial Smelting Process has the 7.2
  3. 3. ILZIC Silver Jubilee Con erence Lead, Zinc and Cadmium into the 90s following advantages as compared to the cleaning system. During the cleaning lead. combination of electrolytic zinc and zinc. mercury and cadmium dust are conventional blast furnace lead smelting recovered before the gas is sent to sulphuric route. acid plant. Increased flexibility to treating The Sulphuric Acid plant has been designed concentrates with higher impurities based on double conversion and double absorption (DCDA) process route for the Lower overall energy requirement per production of sulphuric from sinter gases tonne of zinc and lead. . containing S02 and would ensure S02 content at the outlet of the stack limited to 2.7 kg/t of Lower electric power requirement. H2 S04' About 580 t/rlay of 98.5% H2S04 will be produced from the sinter gases containing Lower capital investment and 5.8% S02' operating costs. ISF Plant will comprise of the charge Higher by-product recovery . preparation and furnace charging. furnace. condenser and Cowper Stoves. gas washing The proposed plant will include Raw Material and LCV distribution system and Brtquetttng Handling Plant, Sinter and Gas Cleaning plant. . Plant. Sulphuric Acid Plant, Imperial Smelting Furnace and Power Generation. Zinc Refinery. Lead Zinc Sinter. Briquettes and Metallurgical Lead Refinery. Precious Metal Recovery Plant Coke in hot condition are charged in Imperial and Cadmium Plant. Smelting Furnace from the top and hot blast is injected through tuyeres located at the bottom For the production of Zinc and Lead through of the furnace. The pre-heating of coke and Imperial Smelting Furnace .process blast air for the furnace will be accomplished approximately 400.000 tonnes of various raw in coke preheaters and regenerative. type materials and Metallurgical Coke will be Cowper Stoves respectively using LCV gases handled through elaborate system of as;fuel. The metallic zinc formed as vapour will unloading. storing & reclamation. One month pass through the furnace off take into the lead storage facilities for zinc and lead splash condenser. These zinc vapours will be concentrates have been envisaged. whereas condensed by shock cooling the gases with a for metallurgical coke it will be for three spray of finely divided droplets of lead months requirement. produced by the rotors rotating at high speed. The lead with absorbed zinc. will be pumped The lead and zinc concentrates along with from the condenser to the launders where lead lime stone. return sinter fines and other zinc is cooled to separate out lead and zinc. recycle materials will be agglomerated in an The cooling will be by boiler tube banks updraft sinter machine. It has been envisaged immersed in the launder. The steam generated to use oxygen in the sintertng operation for from this boiler as well as the steam generated operational improvement. better sulphur from LCV gases will be utilised for generating burning rate. and reduction in volume of 9 MW of electric power thus partly satisfying gases with sulphur burning rate. and the requirement of electric power for the plant. reduction in volume of gases with consistency A duel fired boiler; two turbo. generators. in S02 concentrations. The smtertng process heating & super heating elements. feed pumps has also been envisaged to be closely along with other necessary facilities have been monitored through a microprocessor based envisaged for both these systems. The control system through a central control schematic diagram of launder boiler power room. generation is shown in Fig. 2. Sinter gases approximately 94.000 Nm3/h The briquettmg plant will condition the from the sinter machine will be cleaned in gas various recycled fines and drosses from cleaning plant, comprising of dry and wet gas various plant units into briquettes. The 7.3
  4. 4. I ILZIC Silver Jubilee Conference Lead, Zinc and Cadmium into.the 90s I briquettes thus produced will be sent to Cadmium plant has been envisaged to recover smelting furnace. cadmium from fumes recovered in hot gas precipitator of sintertng plant, through Ion The Imperial Smelting Furnace will have Exchange Process. The Ion-exchange resin will considerable slag fall and therefore a exchange cadmium from the acidic liquor. The continuous tapping system has been caustic cadmium will be finally produced by envisaged to ensure not only easy slag regenerating the Ion-exchange column, handling but also loss of byproducts metals cementation of liquor thus produced and into slag will be reduced. The block diagram of melting and casting of the cadmium sponge. ISF plant is shown in Figure 3. These cadmium plates are sent to Zinc Refinery plant for further refining to cadmium Furnace Zinc from the ISF will be refined in a metal in the baby column. refluxmg plant which will consist of lead columns, cadmium columns and baby For this project, microprocessor based column. Half the output will be produced as Distributed Digital Control System (DDC GOB Zinc with 98.5% Zinc which is used by System) have been envisaged for three major galvanizers directly and other half wtll be units viz., Sinter Plant, Imperial Smelting distilled further to produce 99.99% purity Furnace and Power Plant. SHG Zinc needed for special alloy applications for which imports of zinc are made. The DDC System has major advantages over the conventional system a) better man/ One of the important features of the zinc machine communication, b) higher system refluxmg process is the use of silicon carbide reliability due to high mean time between trays for distillation of SHG Zinc and cadmium failure of the system, c) modular construction, from impure zinc. These super-imposed trays d) better system expandablltty., e) maximum with staggered openings at the bottom configuration flexibility, 0 self-diagnostic comprise a column. OWing into excellent feature making the system maintenance easy properties of very high resistance to thermal and faster, g) controllers have self tunning shock backed by very good thermal feature reducing system stabilization time, h) conductivity these trays make an ideal data storage facilities make nost trip analysis distillation unit working at high temperature. possible, t) redudant configuration is possible due to use of microprocessors in various sub- Refining of impure lead bullion from Imperial systems, j) ease of communication with Smelting Furnace has been envisaged to be Similar systems and future production electro-refined based on Bett s Process. planning computer. The typical configuration Special features of a modern lead refinery diagram is shown in Figure 5. include large cells of polymer concrete construction, continuous anode casting The plant has been envisaged to work on machine, cathode sheet casting and imported coke for first five years and there preparation machine, anode & cathode after on indigenous coke. The plant capacities preparation conveyor, spent anode washing for the proposed plant are based on utilization and slime removal cranes, etc. The various of Indian coke. There will be an increase in advantages of electrolytic lead refinery over outputs if imported coke with low ash content pyrometallurgtcal route are automation of the is used as shown in the Table 01. of the plant, better environmental control, higher quality refined lead, increased IMPLEMENTATION CONCEPT recoveries of lead and byproducts, simplicity The project has been conceived to be of starting up & shutting down the process. implemented in two phases. The Phase I Flowsheet for lead refinery is given in Figure 4. consisting of pre-investment activities to firm up the scope of work and prepare firm cost It has been envisaged to process dore metal estimate for submission to the Government. produced from lead refinery electrolytically to The Phase II activities of total implementation gold and silver bullion. of the project will start after the approval. The 7.4
  5. 5. I ILZIC Silver Jubilee Conference Lead, Zinc and Cadmium into the 90s I Table - 1 equipment supplies so as to be ready to PROPOSED PLANT CAPACITIES release order immediately on receipt of investment decision. Based on this approach. Product Capacity (t/yr) Increased project is scheduled to be completed in four output years as per implementation schedule due to use of indicated in Figure 7. imported coke (t/yr) The know-how and basic engineering for the project will be supplied by M/s Davy McKee. Zinc 70.000 82.000 Lead U.K. They are also providing technical 35.000 39.800 Cadmium 375 417 assistance for (a) preparation of firm cost Silver 74 82 estimates. (b) detailed engineering. (c) Gold (Kg) 60 68 Inspection of critical equipment. (d) Bismuth 10 11 construction and commissioning of the plant. Mercury 30 33 Suiphuric Acid 1.83.000 1.83.000 The know-how for the various plant technologies were obtained from the following Phase I activities have already been completed know-how suppliers: and the Firm Cost Estimates were prepared and submitted as per schedule. The various 1. Raw Material Handling Lurgt/Davy activities as envisaged for the both phases 2. Sintertng Gas Cleaning Lurgf/Norzlnk would be as follows. & Mercury Removal 3. Imperial Smelting ISPL Phase - I Furnace The major tasks of the Phase-I of the Project 4. Sulphurtc Acid Davy consisted of: a) Receipt of Know-how and 5. Lead Refinery COMINCO/Davy Basic Engineering Packages. b) Preparation of 6. Precious Metals Davy basic engineering package. c) Preparation of 7. Cadmium ISPL 8. Zinc Refinery MECHIM tender documents for turnkey packages based 9. PowerGeneration Davy/SHG on know-how and basic engineering. d) Shorthsttng Turnkey Contractors through MECON is providing consultancy. detail open tender, e) preparation of detail drawings engineering. procurement. project and estimation for non-turnkey/interface management. and site supervision. For timely areas. service building and infrastructure. 1) implementation of the project it has been Technical and commercial evaluation of offers, broadly split into two areas : Turnkey and final negotiation with tenderers and Non-turnkey and would be executed by Indian recommendations. g) Part of enabling works. Companies. The major units of the project and. h) Preparation of firm cost estimates. were divided into 15 turnkey packages as given below: Phase -II The activities during this phase will include: a) 1. Raw Material Storage and Handling Placement of order, b) Detail engineering Plant services by contractorsconsultants. c) 2. Sintering and Gas Cleaning Plant construction and erection. and d) 3. Imperial Smelting Furnace Plant commissioning and stabilisation. 4. Sulphurtc Acid Plant 5. Lead Refinery and Minor Metals Plant The implementation concepts for the project 6. Precious Metal Recovery are depicted in Figure 6. 7. Zinc Refmery 8. Cadmium Plant Project schedule envisaged investment 9. Copper Recovery Plant decision by 3rd. quarter of 1988 to enable 10. Effiuent Treatrrient Plant placing of firm orders to turnkey contractors. 11. Power Distribution and Lighting It was also planned to complete techno- 12. Auxiliary Power Generation and D.G. commercial negotiations for major contracts/ Set 7.5
  6. 6. I ILZIC Silver Jubilee Conference Lead, Zinc and Cadmium into the 90s I 13. Water Supply System procedure thus followedduring the Phase I of 14. Utility System the project enabled submission of firm cost 15. Telecommunication estimates as per schedule. The Phase II activities have already been initiated so that The project is being implemented on the the project is commissioned by early 1991. concept of turnkey contract package covering detailed engineering. procurement. Project Planning And Monitoring fabrication. construction. installation and The project planning monttortng for the commissioning by contractors. The interface proposed project willbe executed by a group of between various packages and other work fo,: . engineers of Project Planning. Monitoring and the project is being carried out on non- Control Cell. The group will organise an turnkey basis.Based on the above concept efficient reporting system from the site office Indian companies of repute were technically as well as form varlous other agencies involved and commercially evaluated and were in the execution of the project. The project shortlisted for submitting their bids for planning and monitoring system is depicted in various packages. Figure 8. By this system. stringent controls will be exercised and corrective measures will The design concept for various plant/units be taken at the early stages of the project at were discussed during various design appropriate time to prevent cost and time conferences held at Udaipur and Stockton. overrun. U.K. with the representatives of the different know-pow suppliers. The preliminary basic The planning. monitoring and control engineering was obtained from foreign know- techniques are closely related to the physical how suppliers starting from July. 1987. progress of work and financial expenditure for the work completed. To achieve the above The technology being new and introduced for objective. network analysis will be used to the first time in the country. it was decided keep a close watch on the physical progress of that instead of getting the complete know-how the work at various stages in relation to the and basic engineering. scrutinizing the same allotted time and cost. and then dissipating it to the tenderer for their perusal. the preliminary information obtained The task of the planning and control of the after scrutinizing was passed on to the project will be: tenderers immediately so that the same is assimilated by them at early stage itself. The to establish a master plan for the effect of this decision was that the tenderers project were able to understand the technology and to design and establish an information started their preliminary work quite in system for efftctent control of the advance. The tenderers came out with number project. of queries on technology and design and these to coordinate the activities of the were sorted out from time to time. Prebid various agencies involved in the conferences were held with the parties for implementation of the project. different turnkey packages wherein all to hold follow-up master planning outstanding points. both technical and meetings. commercial were clarified. This helped to a to establish periodic reporting system great extent in freezing/firming up the scope for the project progress. of work within a reasonable short time-span. Project planning. monitoring and control Based on the technical and commercial bids group will play a dynamic role by keeping in obtained and discussion held with the continuous contact with Hindustan Zinc Ltd.. tenderers. techno-commercial evaluation were overseas know-how suppliers. turn-key carried out. This formed the basis of project contractors and other agencies. The first task costs for the furnished by foreign consultants. will be to prepare a master PERf network. These two capital costs were integrated to which would enable monitoring the progress prepare the project cost estimates. The of the project with respect to time and cost. 7.6
  7. 7. I ILZIC Silver Jubilee Conference Lead, Zinc and Cadmium into the 90s Each of the turn-key contractors will be asked financial matters will cover two areas: to provide an area PERf network for their activities and a master network will be Project Budget and Funds Planning prepared incorporating important activities Project Cost Control from each PERf network as well as other activities which will not be included under the The cell will also have experienced cost turn-key suppliers' scope. Preparation of engineers/techno-economists to monitor the specifications, tendering, tender evaluation, expenditure and maintain cost control. The order placement, equipment supply, detailed task of the budget and cost control activity will drawings, construction, erection and be as follows: commissioning will all be covered in their logical sequence and inter-dependence in the To establish general procedures on the master network. matters of budget and cost control for the project With the initial plan flnalised and approved, To consolidate the budget for each control will be achieved by reviewing the package into an integrated project physical progress periodically and comparing budget with the target. The periodicity of the review of To estimate and monitor overhead the progress will be fixed in advance. The expenditure of the project monitoring will be based on efficient reporting To monitor the expenditure from each system to be organised so that up-to-date area information is available from construction site To establish annual budget and funds as well as from various agencies. The group requirement for the project will prepare monthly reports describing To consolidate the contact variations progress of the project and advise corrective and establish over-runs/under-runs action to be taken as follows: for the project To co-ordinate release of payment for • Highlighting short-falls, bottlenecks or different contractors. constraints. * Examining the effect of these short- CONCLUSIONS falls and problems on project On successful completion of the project most completion as per estimates of time of the demand for Lead and Zinc in the and also inter-related and inter- country will be met through indigenous dependent programmes. production. It is expected that with the • Providing feed-back data indicating commissioning of the plant, the demand corrective actions to put lagging areas satisfaction level for Lead and Zinc will back on course. increase to 64 percent and 85 percent • Reviewing the corrective actions in respectively and also make the country less response to feed-back instructions. dependent on import of these metals. The various reports prepared will highlight the Phase I of the project has already been following: completed as per schedule with the .submtsston of the Firm Cost Estimates. Phase List of activities due in next period for II activities have already been initiated and the planning and progress reporting methodology adopted would enable List of critical activities commissioning of the pro]ect by early 1991. List of activities are-wise/agency-wise List of activities in progress List of activities, which have been ACKNOWLEDGEMENT delayed, etc. MECON thankfully acknowledge M/s. Hindustan Zinc Limited for the information Budget and Cost Control provided on proposed Chandertya Lead Zinc The Project Monitoring and Control covering Smelter for preparation of this paper. 7.7
  8. 8. HOT S'IIT£R., J:"~OM ,s,,,,TER PLAN7 COLD COKE' ~ C.OKE SINTER BIN .,PRE HE •••. TER. e. L U £ PDWD£R. TO .s III T£ ~ PLA~T i • ell DROSS F u R. I ., TO LEAD ••• R[F,NO!Y A C £ 4•• 05 I •• l;RIltNCJLII "~D WAS ~/Ny ~LA. t:)J~PD$IIIL bl(ll1lvETrE.s TO 13 F r.IIS 7/H C I L£"P BOOSTER. .sErE RATION Ll:V 4/15,. , 7:,''''' TO RU'N£RY FI4.-3 'BLOC ~ DIA4RAM OF ISF PLANT
  9. 9. HINDUSTAN Ztt-.(; LTD Chi<zf Proj. Manag<zr MECON (INDIA) LTO DAVY MCKEE Inspect ion -. FOREt., INDIAN CONSULTANT ~f(En9ij""'- GN CONSULT · i! ~ T'"Ir-9.r_~;"""":_R_}_K...LE_yL...L_l'" ~ _.!::! 1LUN -R.~ )I-Isl ::l c III V ~ 0 - o E rn £' ~ ~ ~ v E ~ C7l c ~ . <7' cj, g w •.. Sc >. E g wg'wo C7l ~ CC Uc C7l cwci.1-L C I~ .- CocE -'; ~ •.. III 00 u ';: ~ _ '';:; u .s ::t. "5:= VI 0' 0. U u r-..••..... 0 --...--Z--J....-----_ .Iii c '0 ~ ~ 2 s ~ Basic En99· a ID •... : •• ti III 0 . .£ 8 ~.- VI L-. ...-I C L Z S Supplementary En99. I ~ ~.--. Procurement & Consultancy ----- Proi. ManaQeme:nt Non Turnkey Procurement PROJE C T Commissionina & 'Guarantee Test Contractors Constn. CommissioninQ Land, watt:r, power Lo cat Aurothiti<zs Fig. 6 lrnpternentatlon concept
  10. 10. HINDUSTAN Ztt-.(; LTD Chi<zf Proj. Manag<zr MECON (INDIA) LTO DAVY MCKEE Inspect ion -. FOREt., INDIAN CONSULTANT ~f(En9ij""'- GN CONSULT · i! ~ T'"Ir-9.r_~;"""":_R_}_K...LE_yL...L_l'" ~ _.!::! 1LUN -R.~ )I-Isl ::l c III V ~ 0 - o E rn £' ~ ~ ~ v E ~ C7l c ~ . <7' cj, g w •.. Sc >. E g wg'wo C7l ~ CC Uc C7l cwci.1-L C I~ .- CocE -'; ~ •.. III 00 u ';: ~ _ '';:; u .s ::t. "5:= VI 0' 0. U u r-..••..... 0 --...--Z--J....-----_ .Iii c '0 ~ ~ 2 s ~ Basic En99· a ID •... : •• ti III 0 . .£ 8 ~.- VI L-. ...-I C L Z S Supplementary En99. I ~ ~.--. Procurement & Consultancy ----- Proi. ManaQeme:nt Non Turnkey Procurement PROJE C T Commissionina & 'Guarantee Test Contractors Constn. CommissioninQ Land, watt:r, power Lo cat Aurothiti<zs Fig. 6 lrnpternentatlon concept
  11. 11. • I .., , • I I I' J • I l( ~(j DA Tl I! r , , ••• a1 I I FIRST yE••. R SECO/l() YEAR "THIRD YE ••. R FOURTH YE ••. R SL· P T , 0 N OESCR' .2 NO· i 12 , 4 ~6 7a Q(I II' h41,~"t ,7 ,e 1'9,~:2' )I~lll I~~~b ~ lI< 41 I) ""O'N'M,,,T or IND'A" CO"SULTANT • 1 ')A"O,,,T •• (,,f or IA6'e ,",,"((1"11, ~~ CON~UL TA"T -- fOI 'R(P"RAT,OIl <)aH't (N~'"ll.'N' 2 0' t 'ICOIo4'l.l I •••• T( LOST UTi •.•.• , c •• A I l ('o("N((a,"" I I -- T 3 '" U( OF T( NOLI 5'IC",CA"ON I 4 alLt,'1 Of Ol'fl~S fT S '1('1.1 •• ,000 Of FlI •• COSI lGT'''All u; 6 A"ROVAL & PRO)lC 1 SANCTION IT "()IT 1 7 O.Dl~ 'LACUHNT .T , o 8 I){S'~N , ot T"'LIO (N~'''([RIN~ , /I , , , I I 'LACl •• [II' Of sue·OROlR5 9 , , I I I TTT 10 ""UL TUI!AL fA BA'LA T ON WORK I 11 'UPPlT I lJPPl , OF MECHANICAL [QUIP (QUIP •• I H T •• lNT , , c 12 Of H[C '.'LAL N.~I(iH lUPPLY [QUIP •• INT 13 & Of' '''POR1(1) I --- --.,--. - . 14 IrCAlO."O" WOA~ i I I I , I IT I 15 c. t 'IlL fOUNOAT'ON I I j T , 16 [RlCIIOIi Of GTRUCTURl5 I i. I I T T .... ' I I 1 ,17 (R[CTIOII Of "ICHAN'CAL lQU'P"'NT , , E 19 IllL '" tA L T 'ON IUN. CO •••• '56'OH'''(. Of lLl(.rfllllCS TlST'H~ AND & ,HC;TRUMlHT. 1+ i I ~, I i' . I '-:-TTT" ~~ ---- .-- METALLURGICAL. COIIISUlfUTS EllllIiU.(fI"NIi ( INDIA I UMmD ..... --.- .. HINDUS TAN ZINC LT r ss '"A_D(II,14 LrA 5"(L'I~ FIGURE NO-7 .~OJIC' __ __ ::::rr"[''': ----r.--:.=_----=--:::-_=,------~-- _. ~ ,~ 5l?? ....._----,----.-- , _~I r:.-C-.. ". CI--- . __ . ~ r ,. :"::'--.-J___ j -. •• ==_JJ_~_7~~ _- •• •••• __ (~~ . '''LI - - -- ~------f-- -_._-. •• ("T"T'OIf --=r: "",OUU I I .
  12. 12. 8 I a I 4 3 I 2 I , -- -- 1:>3W 'oN '!)1I0 I .OVERALL PROJECT SCHEDULE &.> KEY I MILESTONE EVENTS 0 I COST DATA I nnnnAnnnnn DETAILED NETWORK UNITWISE , I ENGINEERING OFFICE r- - 0 f .ENGINEERING I- r1 SITE OFFICE I .--- [ COMPUTE~ SYSTE.M MASTER NETWORKS 1 I RESOURCE . I &CHEDI.l.E ~ 01) ...., I ~ ~ I I 1 I u, [PRELIMINARY WORKS TENDERING INCL. E NABUNG WORKS I EXPENDITURE "- 0 llNDIGENOUS E Q.PT. ...., u 1 REPOfns c.!I z I PLACEMENT I - I I II: ...., OF ORO CONSTRUC TION "- u, uJ 1 INDIGENOUS EQPT. c MATERIALS I 0 PROJECT MONITORING z ~ c ....• z .... CONS TRUC nON I ~ CENTRE r PROCUREMENT I PROGRESS I ;;; l: 0 II: I IMPORTED EQ.PT. "- r INSPECTION "- I RECEIPT OF EQUIPMENT I I l: 0 II: 1 In ~ ~ll NOEGEJ1()U5EOUPMENT "- "- PROJECT II: 0 C1.. STATUS REPORT ....• ERECTION OF I 01) ~ .1 II: I EOUIPMENT I II: 0 C1.. L.....- II ....• PROGRESS REPORT •• HSTING &. I II: 1 PROGRESS REPORTS I COMMI SSIONING I '--- ANA';-YSIS OF SHOR FALL &. FROM TURN·KEY CONTRACTORS BOTTLEfo.ECKS ~ PROGRESS REPORT J rl FOR .L RECOMMENDATIONS REMEDIAL MEASURES Y DELI-/ERY/DESPATCH OF EQUIPMENT ~ FROM OVERSEAS SUPPLIERS IfCTlO"· ~ . CHJ.NQERIYA • (dft) firfm /Ii. HAMI DATE CHID 04Tt LAED ..,ZINC $MELTER ~ METALlUAGICAL&ENGINEERlNG It. . FIG - 8 010" PRC DG lnP CONSULT ANTS (lNOIAI liMITED ORWN JAIN ~ ~---- I I I I I I I TRCD , 1("I.j PROJECT PLANNING & MONITQfUNG I IIIV. SCAlf ,I ~IV,"01DAn 1lONII DIICR"TION I" I",,",D "[',,,."C(. '------_.- 10110, NO~ .IV,.,ON. ~D ~~~~f' O~G. No. HKI I _.- • I • I • I J I 2 I 1

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