Industrial Training Presentation

Chanaka WickramasingheUWU/MRT/11/0018UWU/EX/11/0386

Industrial Training DetailsTraining Organization:Kahatagaha Graphite Lanka LimitedMine and Processing Plant, Maduragoda, Kurunagala.

Training Individual : E.M.C.G. Wickramasinghe UWU/MRT/11/0018

Supervisor :Eng. K. Warusawithana,Mines Manager, Kahatagaha Graphite Lanka Limited,Maduragoda, Sri Lanka.

Organization Details

KGLL

Organization Details (continue)

Kahatagaha Graphite Lanka Limited holds best vein graphite deposit in the world

Chairman

Manager

Assistant Manager

Mining Department

Processing Department

Plant Engineering Department

Organization Details (continue)

VisionTo be the most leading supplier of the natural crystalline vein graphite to the world.

MissionTo earn foreign exchange to the country and fulfill the social obligation providing job opportunity to the society with optimum utilization of graphite mineral resource of the country.

Training ProgrammeThe main processes of an active mine,• Cross Cutting

• Driving• Winzing• Stoping and Vertical Slicing• Shaft Sinking

1. Profiling2. Drilling 3. Charging4. Blasting 5. Washing &

scaling6. Mucking 7. Supporting

Training Programme (continue)

The main processes of an active mine,• Cross Cutting

• Driving• Winzing• Stoping and Vertical Slicing• Shaft Sinking

Preparation for blastDrilling ChargingBlastingWashing & scalingMucking Supporting

Training Programme (continue)

• DIAMOND DRILL MACHINEAdvantages of Diamond Drilling Fast Highly cost-effective Very safe Low work force required

• UNDERGROUND MINE SURVEYING

Training Programme (continue)

• MACHINE ROOM AND MACHANICAL UNIT

• MINE VENTILATIONexhaust (pull) systemblowing (push) systemcombined system (push-pull)

Training Programme (continue)

• GRAPHITE PROCESSING DEPARTMENT

Mineral Processing

Section

• Material Handling• Sorting• Particle Size Reduction• Sewing• Packaging

Laboratory• R & D • Quality assurance & control

Training Programme (continue)

• GRAPHITE PROCESSING DEPARTMENT• The use of graphite in Sri Lanka has a long history, from 1675. • Sri Lankan graphite is very popular all over the world for its high

purity.• • There are two major mines for graphite, KahatagahaKolongaha

and Bogala. • The largest mine is Kahatagaha-Kolongaha close to Matale-

Kurunegala road. This is deeper than 650 m.

Slab Yard

Ore Chute and Stock Cylinder

Grizzly Screen

Trommel Screen 1

Trommel Screen 2

Curing Yard(Manual Sorting)

MATERIAL FLOW CHART OF THE KGLL PROCESSING SECTION

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Training Programme (continue)

Training Programme (continue)

• PLANT ENGINEERING DIVISIONMain Power Lines from Kurunagala &Mathale

33000V

Step Down into 415V using 03 Transformers

Kahatagaha 02 Transformers (parallel)

Compressors

Underground Servises

Main Winch

Kolongaha 01 Transformer

Kolongaha Water Pumps

Processing Plant

• PROJECTS AT KAHATAGAHA

Experience Gained

1. Draw AutoCAD 3D & 2D model of Kahatagaha Mine using survey data 2. Dewatering electronic automation project – Case study3. Processing Plant Dispatch data digitalizing project (Year 2008 to 2015)4. Safety Sign Designing Project5. Emergency evacuation path design project6. Electricity consumption kVA valve of KGLL - Case Study (Saving 1.5 Lk/month)

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Experience Gained

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