Samik Nag

ORCID: 0000-0003-0544-1836
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About
Contact & Profiles
Research Areas
  • Iron and Steelmaking Processes
  • Metallurgical Processes and Thermodynamics
  • Mineral Processing and Grinding
  • Metal Extraction and Bioleaching
  • Crystallization and Solubility Studies
  • X-ray Diffraction in Crystallography
  • Granular flow and fluidized beds
  • Minerals Flotation and Separation Techniques
  • Radiative Heat Transfer Studies
  • Thermal and Kinetic Analysis
  • Thermochemical Biomass Conversion Processes
  • Recycling and Waste Management Techniques
  • Electrical and Bioimpedance Tomography
  • Chemical Looping and Thermochemical Processes
  • Methane Hydrates and Related Phenomena
  • Luminescence and Fluorescent Materials
  • Environmental and Biological Research in Conflict Zones
  • Chemical and Physical Properties in Aqueous Solutions
  • Organic Light-Emitting Diodes Research
  • Coal Properties and Utilization
  • Innovations in Concrete and Construction Materials
  • Fault Detection and Control Systems
  • Oil Spill Detection and Mitigation
  • Electrohydrodynamics and Fluid Dynamics
  • Free Radicals and Antioxidants

Tata Steel (India)
2013-2025

For effective burden distribution in a blast furnace, correct prediction of material trajectory is very important. A mathematical model based on single particle approach has been developed to estimate the furnace fitted with compact bell-less top. The validated in-furnace measurements Tata Steel's 'F' furnace. Results obtained regarding applicability are promising.

10.1179/174328108x393876 article EN Ironmaking & Steelmaking Processes Products and Applications 2009-01-17

Estimation and prediction of the stock profile in radial direction furnace is essential for controlling ore coke distribution permeability distribution. In this paper, based on experiments carried out different scaled model blast with material, a general purpose methodology to estimate burden proposed.

10.2355/isijinternational.54.1517 article EN cc-by-nc-nd ISIJ International 2014-01-01

To enable centrally working blast furnace for smooth operations, the practice of dumping larger sized coke particles, also known as centre coke, in has been developed and adopted many furnaces worldwide. Centre will allow gas to pass more easily through it, thus concentrating much energy mass transfer protecting walls, well reduce pressure drop throughout furnace, among other advantages. In this study, discrete element method(DEM) is used determine effect geometry inclination rotating chute...

10.2355/isijinternational.isijint-2020-498 article EN cc-by-nc-nd ISIJ International 2021-03-15

Blast furnace (BF) operation depends on the smooth upward movement of gas and its pressure drop. The slag properties like viscosity affects flow inside furnace. It is well-known that Al 2 O 3 contributes to increase viscosity. For BF operation, maximum limit in Indian around 18.5%. Higher contents make tapping difficult. In present work, FACTSAGE calculations were carried out estimate melting temperature 20% varying MgO% between 7 13 basicity (B2, defined as wt% CaO/wt % SiO ) 0.9 1.2 find...

10.1177/25726641241250146 article EN Mineral Processing and Extractive Metallurgy Transactions of the Institutions of Mining and Metallurgy 2024-05-07

Blast furnace (BF) ironmaking is the most widely used technology for hot metal production. In steelmaking industry, 80% of steel in world produced BF‐basic oxygen route. It well known that poor quality raw material i.e., high gangue content iron ore affects BF process performance and cohesive zone formation, which critical operations. Increased causes variation slag formation volume thus affecting fuel rate performance. Therefore, this study, studied to understand properties at different...

10.1002/srin.202300612 article EN steel research international 2024-04-29

This study focuses on the of erosion pattern Blast furnace tuyere which is a copper casted component used for injecting hot air inside to help in combustion pulverized coal. As operating at high adverse thermal condition; it has provision two cooling circuits, body and nose separated by solid copper. Identification most vulnerable zone been done scanning circuit does not get failed. required actual information regarding as tuyeres changed during shutdown are generally having burnt therefore...

10.2355/isijinternational.isijint-2018-710 article EN cc-by-nc-nd ISIJ International 2019-09-14

Burden distribution control in a blast furnace has close relationship with wind acceptance and gas utilisation. Quantification of radial ore coke is important for proper operation. Charging metallic burden over layer causes portion the to get dislodged from its original position, similar situation observed when heavy material dropped on bed lighter particles. This phenomenon, designated 'coke collapse', significantly changes ore/coke direction thus affects permeability shaft. In present work...

10.1179/174328109x443338 article EN Ironmaking & Steelmaking Processes Products and Applications 2009-06-23

Good permeability of the blast furnace bed is paramount importance for stable operations same and to achieve it, controlled burden distribution key. While coke primarily used maintain (with ferrous particles being considerably smaller), global calls reducing CO2 emissions substantially are pushing furnaces consume lower amounts same. Considering this, other methods must be explored maximize layer. To do so, efforts made control pellet dumping in layer such a way that it occupies more volume...

10.2355/isijinternational.isijint-2022-373 article EN cc-by-nc-nd ISIJ International 2023-02-14

The prediction of transport and thermodynamic properties the blast furnace slag is an experimentally tedious job to accomplish as seen in part-1 this work. Literature studies have shown that use machine learning determination a function composition effective technique for glassy slags. However, application data science techniques high alumina has not been studied extensively so far. In paper, Support Vector Machine (SVM) ExtraTrees Regressor done predict viscosity, liquidus temperature,...

10.1080/03019233.2023.2210903 article EN Ironmaking & Steelmaking Processes Products and Applications 2023-05-31

Any improvement in Blast Furnace productivity under a given set of operating conditions is fundamentally related to better flow distribution gas through layered burden structure Furnace. Flow and hence pressure drop granular zone blast furnace dependent on number thickness alternating layers coke metallic burden. A significant part this total can be attributed interfacial resistance between two successive layers. Whereas, porous materials described by well known Ergun's equation terms all...

10.2355/isijinternational.51.1795 article EN ISIJ International 2011-01-01

In the present investigation, flotation experiments were carried out to recover carbon values from a gas cleaning plant sludge generated blast furnace. Statistically designed conducted evaluate individual parameters and their interactional effects on separation performance of while recovering The influence collector dosage, frother feed pulp density was analyzed for particles sludge. Also, optimized process conditions studied variables fixed achieve optimum performance. It is concluded that...

10.1051/metal/2016011 article EN Metallurgical Research & Technology 2016-01-01
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