Browsing by Author "Fernando, WLW"

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  • An assessment of aluminosilicate refractories from in-situ deposits 
    Fernando, WLW [Conference-Full-text]
    It is possible to predict the behaviour of Aluminosilicates prior to its use in iron and steel practice. The methods adopted by the author comprise extraction of the material from bore holes, bcneficiation and fabrication ...
  • Design and fabrication of a spiral classifier for off-shore sand washing 
    Udawatte, NBB; Siriwardene, HP; Samaratunga, SPND; Udayanga, WAC; Rupasinghe, SN; Theeparuban, B; Fernando, WLW [Conference-Full-text]
    The rapid growth of construction industry has created a significant demand for sand. Consequently, it has increased the exploitation rate of river sand giving rise to adverse environmental impacts. Therefore, the tendency ...
  • Designing a vibrating sieve 
    Fernando, WLW; Basnayake, BMV; Fernando, HAS; Rajapaksha, HMPB; Rodrigo, SAIJ; Theres Lathanky, J [Article-Full-text]
    This report presents the development of proto type of a Vibrating Sieve. The preliminary objective of this project is to design a prototype of a vibrating sieve to be used for clay refinery process, which can be easily ...
  • Designing of a vibrating sieve 
    Fernando, WLW; Basnayake, BMV; Fernando, HAS; Rajapaksha, HMPB; Rodrigo, SAIJ; Theres Lathanky, J [Article-Full-text]
    This report presents the development of proto type of a Vibrating Sieve. The preliminary objective of this project is to design a prototype of a vibrating sieve to be used for clay refinery process, which can be easily ...
  • The flow behavior of mineral particles through glass funnels 
    Rohitha, LPS; Dissanayaka, DMDOK; Fernando, WLW [Conference-Extended-Abstract]
    In industry the flow of mineral particles in silos playa very important role in the recovery of these particles into containers for bagging and transport. The silo design parameters and particulate properties are restricting ...
  • Flow Behavior Of Mineral Particles Through Silos 
    Rohitha, LPS; Dissanayaka, DMDOK; Fernando, WLW [Conference-Abstract]
    Flow behavior of dry minerals in silos has been investigated initially with glass funnels with different orifices. Thereafter, funnel was scaled up to a pilot plant (Silo) with adjustable orifices at its discharge end. The ...
  • The importance of humphreys spiral in heavy mineral Separation 
    Fernando, WLW [Conference-Full-text]
    The Humphreys Spiral Concentrator which was developed in 1943 is now being used extensively for the concentration and the recovery of heavy minerals. In Sri Lanka, this device is very effectively used by the mineral sand ...
  • Magnetic induction assisted levitation of metallized particles in sintered dela Iron ore pellets 
    Gobikrishna, S; Raguratnam, E; Guluwita, SP; Munasinghe, RGN De S; Fernando, WLW [Conference-Extended-Abstract]
    Degree of metallization is on important characteristic of reduced iron ore pellets when determining its applicability in the iron and steel making industry. If the degree of metallization is about 95 -97% induction furnace ...
  • Processing of high grit ball clays 
    Mayooran, D; Gunasekera, HKM; Cristin, M; Fernando, WLW [Conference-Full-text]
    In Sri Lanka high grit ball clay is not mined al all from the ball clay deposits as the process adopted in purification is Dry Processing. It involves dry grinding causing high wear and tear to the grinding mill. Hence the ...
  • Quartzite mining and sand manufacturing 
    Kalubowila, KDLSSP; Gomes, DGNM; Arundathie, KWDD; Dharmarathne, WGAD; Kumara, WAP; Welideniya, HS; Fernando, WLW [Conference-Full-text]
    Manufactured sand is considered as an alternative to match the rising demand of river sand in the construction industry. The basic concept is to crush Quartzite, the source rock to produce sand. This report focuses on ...
  • Recovery enhancement of graphite tub-dust to 99+ carbon using a mill modification 
    Samarakkody, SATI; Rohitha, LPS; Fernando, WLW [Conference-Full-text]
    There are many mineral processing methods that are being used in mining and mineral processing industries. One such method very widely used in the graphite industry is froth flotation. During the present study, graphite ...
  • Reduction of iron ore pellets using coke bed technique 
    Abewardhana, DMUC; Gunasekara, PP; Guluwita, SP; Munasinghe, RGN De S; Fernando, WLW [Conference-Extended-Abstract]
    This research project was carried out with the intension of producing high quality iron are pellets for iron making using processed Data (Rathnapura) iron ore and Aruwakalu lime is coke bed. Different pellet compositions ...
  • Resource recovery from photographic waste by electro-winning 
    Wijeyekoon, SLJ; Rohitha, LPS; Fernando, WLW; Dissanayaka, DMDOK; Karunarathna, S [Conference-Abstract]
    Industries such as mining and industrial minerals, metallurgical, photographic, textile, leather and chemical produce wastewater containing heavy metals that are hazardous to man and the environment. Indiscriminate ...
  • Rheological behaviour of mineral (clay) suspensions 
    Balasooriya, BARD; Kumara, WC; Prasanna, TGS; Sasekaran, M; Fernando, WLW [Conference-Full-text]
    In this research, a rotating cylinder viscometer was designed and fabricated to study the structure formation of particles in a mineral suspension and its influence on the relative viscosity q/qo. It is known that the ...
  • The effect of carbon and firing temperature sequence on CHICO mill-scale and Its applications in metallurgy 
    Paranavithana, RM; Shyamali, MAS; Guluwita, SP; Fernando, WLW [Conference-Extended-Abstract]
    Mill scale is a surface layer of iron oxide form on steel billets during hot rolling. Currently this is a waste material and constitutes nearly two percent of the yearly output from CHICO. The current research shows that ...
  • The effect of dolomitic lime and the firing temperature on the properties of pellets produced from dela iron ore 
    Dharmasiri, PDSC; Aboonidhal, MA; Guluwita, SP; Fernando, WLW; Munasinghe, De SRGN [Conference-Extended-Abstract]
    Iron ores and lime are two of the available raw materials in Sri Lanka for iron making. However, proven reserves of I iron ore deposits in Sri Lanka have not been scientifically estimated as yet. There is no indication of ...
  • The use of prototype pelletizer for iron ore preparation 
    Arachchi, GARMG; Jayarathna, STCK; Jeyarupan, G; Thusyanth, M; Fernando, WLW [Conference-Full-text]
    In this research, a pelletizer was designed and fabricated as a prototype machine to make iron ore pellets to be used as a blast furnace burden. During the iron manufacturing process, iron ore powder of specified particle ...
  • The use of saltern bitterns for manufacturing magnesia refractories. 
    Fernando, WLW [Conference-Full-text]
    In Srilanka there are salterns where bitterns are produced as potential magnesia compounds , from which magnesia can be precipitated , consolidated and heat treated under certain conditions to produce high quality magnesia ...