bulk-online, the Powder/Bulk Portal

Biography:
B.Tech.,M.Tech.,Ph.d.(Ch.E.),IIT,Madras,India

Know-how and experience:
Over 34 yrs.experience in Academic and Industrial R&D Centers for proper shear testing of various bulk solids and application of the results for the design of silos for reliable flow and strength,in IndiaRheology of mineral slurries for design of slurry pipelines for tailings disposal in the metallurgical plants in large scale mines.

Education
1 B.Tech(Ch.E)Andhra University, Visakhapatnam
1960-65 in First Class
*2.M.Tech (Ch.E)
Indian Inst.of Technology,Madras
1966-68 in First Class
+3.Ph.D(Ch.E.)
Indian Inst.of Technology,Madras
1969-74
4.Post Doctoral Research(Particle Technology)Loughborough, University of Technology
1975-76
--------------------------------------*Major in Particle Technology dealing with the Theory and Practice of `Environmental pollution’ `Crushing and Grinding’ `Size enlargement including Pelletization’ `Storage and Handling of Bulk solids’ including slurry pipelines and pneumatic conveyance in pipelines.
+Title of the Thesis `The flow of granular materials from mass flow hoppers’
---------------------------------------
Experience

Sep.1977 to Oct. 2003
Dy. General Manager (MineralProcessing)
R&D Center, NMDC Ltd. (A Govt.of India Enterprise)Uppal Road, Hyderabad-500 007

Major Assignments
•Responsible for setting up of `Bulk solids Flow Lab.’ for shear testing of various bulk solids (e.g. cement, ores, fertilizers, coals,) to design large scale silos, bunkers, stockpiles, transfer chutes for reliable gravity mass flow systems design of mineral slurry pipe lines and pneumatic conveyor pipe line systems.
•Consultancy assignments to Public and Private sector industries (ACC, BHEL, EIL, HSCL, MECON, NLC, NTPC, Tata Consultants etc.) for design of reliable flow silos for strength (e.g., Modernization of steel plants, Coal-fired thermal power plants, Cement plants etc.).
•Air, pollution, Afforest ration and Socio-ecological studies in large-scale open cast iron ore mines.
•Conceptual designs of a 175Km.iron ore concentrate pipeline system from Bababudan deposit to Mangalore port.
•Equipment selection for the integrated mineral processing pilot plant in the R&D Center
•Iron ore tailings pipeline system designs for Bailadila deposits 5,1411C and 1011A mines
•Design of 4000T Capacity Silo systems at Bailadila Deposit 1011A, (along with Canadian MetChem Engineers) (after generating Flowability test data for different Iron Ore Composites) from Bailadila 1011A deposits.
•Assessment of Visakhapatnam and Mangalore ports iron ore finesconcentrates bunker systems for reliable flow for ship loading operations to minimize demurrage charges
•Application of Blains surface area technique for pelletization plant operations.
•Superfine grinding of blue dust from 150 microns to about 2 microns by fluid energy mills, vibratory and planetary mills.
•Direct reduction of blue dust and production of Iron carbide through Fluidized bed reactor route using reducing gases from coal gasification, natural gas, ammonia and methanol.

Dec.1976 to Sep.1977
Research Associate,Dept. of Chem.Engg.
IIT, Madras,Chennai-600 036

•Preparation of a report on `Information retrieval in Chemical Engineering Operations’, incorporating techniques of technical information retrieval for process and equipment design and development.

Oct.1975 to Aug.1976
Leverhulme Visiting Fellow,
Dept. of Chem. Engg.
Loughborough Univ. of Technology
Leicestershire, LE 11, 3 TU

•Post Doctoral Research in Powder technology involved in a coordinated project on`Electo-Static Powder Coating Process’ (emphasis on storage hopper design and pneumatic conveyance of epoxy powders) between LUT (Particle Technology) and Southampton University (Electrical Engg.group)

•Association with research projects on`Filteration and Separation’ processes

•Guidance of under graduate projects on Design of hoppers and feeders


Nov.1973 to Oct.1975
Research Assistant
Chem. Engg. Education Development CenterIIT, Madras,Chennai-600 036

•Editing of CHEMTECH series (A manual of Chemical Technology in four volumes).

•Contribution of chapters on` Solid Waste Treatment’ and `Energy’ review of the chapters on `Air Pollution’ and `Waste Water Treatment’ for the first volume of CHEMTECH series.

•Association with other publications of the Center, viz. Process Equipment Design (Mechanical aspects) and `SI Units in Chemical Engineering and Technology’.

Membership of professional bodies.

•Indian Institute of Chemical Engineers
•Indian Institute of Mineral Engineers

Seminars organized

•Organized SILOTECH-97 (Management of industrial silo problems by adoption of new technologies during (23-24, Jan 97) in Hyderabad,India.
Prof. Dr. Ing.J.Schwedes, world renowned Silo Technologist from Technische Universitat, Braunschweig & 60 participants from NTPC, EIL, SAIL, NLC, Gujarat Ambuja cements, APSEB, TISCO, TATA CONSULTANTS, MECON, NMDC, RAJASHREE CEMENT, HZL, IIT-MADRAS and IIT-DELHI, attended the conference.

•Organized a two day program on “Materials Handling and presented three lectures for BHEL, Trichy (1997)

•Presented a paper on`Flowability of Coal in Bunkers and Chutes’ In-house training program for plant senior managers, NTPC Delhi (1998).

•Technical talk on “Coal Silo Vibrations” presented to NTPC – Ramagundam (1998).

Conferences Attended
Abroad:
•“Slurry handling and pipeline transport” – HydroTranport-13 (2 - 5, September 1996), Johannesburg, South Africa.
•`Reliable flow of Particulate solids-III, (RELPOWFLO-3), (11 – 13, August, 1998), Porsgrunne, Norway.
•`First Asian Particle Technology Symposium (APT2000), (13-15 Dec.2000), Bangkok, Thailand.
India:
•“Advances in Science and Technology of Mineral Beneficiation in India”, Ore Dressing Section, BARC (3-5, December, 1981) Hyderabad.
•“Hydraulic Transportation of Coal & other Minerals (ISHT-88)”, (20–22, January 1988), RRL, Bhubaneswar.
•Alternate routes for making Iron & Steel” (11-13, January 1996), TISCO & IIM, Jamshedpur.
•Workshop on “Advances in Optimization Techniques for the Process Industry” by Central Research Development & Design Centre, Tata Consultants (10-11, December, 1997), Pune.
•Seminar on `Management of R&D Institutions’, DSIR (Dept. of scientific and industrial research) (1998) New Delhi,


Know-how and experience:
Specialization: Design of SilosBunkers for reliable flow and strengthShear Testing of Bulk Solids Design of Pneumatic & Slurry Pipelines Particle Technology Environmental Pollution.

Experience:Over 34 Years in Applications oriented Research, Design & Developments in Particle Technology

ImportantAssignments:
I.OUTSIDE ASSIGNMENTS
1.Estimation of Initial and Flow well pressures for 2,700T Wagon Load-out bin for handling Piparwar coal. (Based on Flowability data generated by TUNRA, Australia)ICB, (Contractors, Mumbai), (April, 1995)
2.Evaluation of Flowability parameters of stainless steel (SS 409M) as a liner material for application in bins, hoppers and chutes”
(Coals, iron ore fines and limestone)Salem Steel Plant, SAIL (June 1995)
3.Flowability studies on raw materials (iron ore from Meghahataburu Iron Ore ProjectRDCIS, SAIL, Ranchi
(Nov, 1993)
4.Flowability studies on raw materials (iron ore fines, limestone, sinter returns, flue dust and lime fines) sinter plant, Bakoro Steel Plant.RDCIS, SAIL, Ranchi (Nov. 1993)
5.Flowability parameters with iron ores LimestoneDolomite and Coke Breeze
Part-I TEST DATA
Part-II DESIGN ASPECTS
HEC, Ranch (Oct 1992)
6.Studies on slime disposal pipe line system for gravity flow at Kiriburu Iron Ore Mines,
Raw Materials Division Bokaro Zone, SAIL (Feb.1994)
7.Flowability tests with iron ores from Bolani Mines.HSCL, Ranchi & DCL Calcutta (DSP modernization) (‘Sep. 1991)
8.Demonstration coal slurry project: Flowability studies with New Majri Coal Fields with respect to Chandrapur Thermal Power Project Station Boiler bunkers.EIL (Dec. 1989)
(Planning Commission Project)
9.Flowability characteristics of Lalmatia coal-studies to improve flow of coal in bunkers and chutes at Farakka Super Thermal Power Project of NTPC(Aug 1989)
10.Flowability characteristics of lignite and suggestion for modifications to the existing boiler bunkers in Thermal Station I & II of Neyveli Lignite Corporation Ltd.
Ms. NLC, Neyveli(May 1986)

II.NMDC PROJECTS
1.Flowability test data bank with seven composite samples prepared from Bailadila- 1011 A & 11 B Projects.
(December 1995)
2.Tailings Pipe line system Designs for Bailadila-5, Bailadila- 14, Bailadila- 11 & 11A & Panna Diamond Projects.
3.Modifications to the 800 T Day-Bin to improve Flowability at the Screening Plant, Vizag.

III.OTHERS
1.Computer Software’s Developed for:
i)Design of mass flow bins using Flowability test data
ii)Design of tailings disposal and cross-country slurry pipelines system.
2.Appointed Expert Group Member for Research Schemes on Power Generation (RSOP) on Coal Handling Central Board for Irrigation & Power (Ministry of Energy – Govt. of India, New Delhi), New Delhi.

IV.CURRENT PROJECTS
1.Pumping of Iron Ore Tailings from Thickener UF to Tailing Pond and Recovery of Water From the Tailing Pond
V.M. Salgaokar and Brothers Ltd., Goa
2.Design of Chutes and Bunkers for gravity flow of Bauxite ore at different moisture levelsEIL – New Delhi

V.CURRENT PROJECTS
1.Modifications to prevent Silo Quaking due to coal flow in 500 T Coal Bunkers
2.Flowability studies to solve Bunker Vibration and failure of Bunker side plates and stiffener beams NTPC-Talcher
(2000)
3.Flowability study of coal in order to determine silo Configuration for Simhadri Super Thermal Power Project of NTPC BHEL-New Delhi(2000)
4.Expansion Program for Talcher Power Project to 1000 W. NTPC-New Delhi
(2000)
5.Flowability problem in R.C. Bunkers of KTPS – C Station.APSEB(1998)
6.Identification of Flowability problems in existing coal Fired Power plants and suggesting modifications.
Central Board for Irrigation and Power
(1996)
7.Wear rate studies of chute liners
Salem Steel Plant (1995)
8.Coal Flowability studies for 4x210MW NTPC-KahalgaonSuper Thermal Power Plant(2002)
9.Modifications to the existing 100T Capacity Mandovi Pellets Limited
Two Way Bin for handling Iron Ore Filter Cake,Goa (2002)
10.Design of Coal Bunker for Stage-II of NTPC-Rihand Super Thermal Power Project(2002)
11.Design of Coal Bunkers for Stage-IINTPC-KahalgaonSuper Thermal Power Project(2003)


PAPERS PRESENTED IN SEMINARS SYMPOSIA
- “Internal Stresses in Flowing Granular Materials through Mass Flow Hoppers” Silver Jubilee Session, Indian Institute of Chemical Engineers, New Delhi (3-6 December1972.
- “Static and Dynamic Wall Pressure in Experimental Mass Flow Hoppers” Conference on the Rheology of Particulate Systems, POWTECH, England, March 1973.
- “Dynamic Arch in Flowing Granular Materials from Mass Flow Hoppers” International Conference on particle technology, IITRI, Chicago, August 1973.
- “An Evaluation of Mass Flow Hopper Design for Epoxy Powders Meeting on Powder coating” at University at Southampton, May 1976.
- “Recent developments in the Design of Bin-Hopper systems for Materials handling in minerals processing industries” symposium on “Developments in Science and Technology of Mineral Processing in India, December 1982, BARC [Ore Dressing Division], Hyderabad.
- “Environmental Pollution”, Seminar of Environmental Aspects of Geology, GSSI, Trivandrum [26-28November, 1984]
- “New design Criteria for Assessing Performance of stockpiles, Wagon and Ship Loading, Bunkers to handle Wet Iron Ore fines”, `Seminar on Iron Ore’, New Delhi [22- 24,November, 1986].
- “Flowability Characteristics”, the rational design criteria for bins in bulk solids handling systems, II session seminar on Fine Particle Technology, New Delhi [7-8 May, 1987].
- “New Bin Design Programs for Handling Dewatered Bulk Solids in Slurry Transport Pipelines” – International Symposium on Hydraulic Transportation of Coal and other Minerals, Bhubaneshwar, January 1988.