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Concentration of coal

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Coal

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Concentration of coal

  1. 1. Department Of Chemical Engineering Presentation on • Presented By:- 1)Miss. Bhanuse Pratiksha Shivaji 2)Mr. Bande Dnyaneshwar Ramakant 3)Mr. Patil Ravikant Ramesh Under the guidance of :-S.R.Yadav PROJECT WORKING
  2. 2. CLEANING OF COAL BY USING AIR CYCLONE • .
  3. 3. OBJECTIVE  To study the coal characteristics, uses and its application.  To study the procedure of coal preparation.  To study the methods of removing impurities from coal. Main objective of project:  To reduce ash contain in coal by using air cyclone.
  4. 4. History  In 13th century in china was found that coal or black store was used for heating and was available in huge quantity.  Coal was commercially transported in Britain & Rome in second century.  Coal was used for steel production from iron ore by Roman people.  The traditional buyers of Indian coal - Nepal, Bangladesh and Bhutan.  India export of coal - During 2002-03 it was 12, 000tunes. During 2003-2004 it was 35,000 tones.
  5. 5. INTRODUCTION Coal:  Black sedimentary rock.  Combustible.  Fossil fuel. Coal content following elements • Carbon • Hydrogen • Sulphur • Oxygen • Nitrogen
  6. 6. 1) Anthracite coal – carbon content 85% 2) Bituminous coal - carbon content 50-80% 3) Lignite(Brown coal) - carbon content 35-50% 4) Peat - carbon content - carbon content 35% Classification of coal:
  7. 7. 1) Thermal electric power, 2) Steam power, 3) Metallurgical coke, 4) Domestic fuel, and, 5) Chemical industry. •Uses of Coal:
  8. 8. Impurities Present in Coal: • Nitrogen and sulphur- chemically reduced during coalification. • most sulphur is present as the mineral pyrite (FeS2), which may account for up to a few per cent of the coal and Ash [SiO2, Al2O3 etc.].
  9. 9. Procedure to coal preparation: •Wash ability •Crushing •Screening •Gravity Separation
  10. 10. COAL SEPERATION METHODS •1) Froth floatation for fine particles •2) Bath (Dense medium process) •3) Using the cyclone
  11. 11. Using the cyclone: •Dense medium separator •Water density separator •Air cyclone used
  12. 12. MATERIALAND METHOD OF PROJECT •Aim •Objective •Apparatus & equipment to use
  13. 13. • Procedure– • different parameters are  Change of flow rate Change of pressure Change of particle size Change of surrounding temperature
  14. 14. Sr. no. Flow rate Wt. of fine particles at top (gm) Wt. of Ash particles at bottom (gm) % of fine particles % of Ash particles 1. 2. 3. Sr. no. Pressure Wt. of fine particles at top (gm) Wt. of Ash particles at bottom (gm) % of fine particles % of Ash particles 1. 2. 3. For change of flow rate: 1)For change of pressure:
  15. 15. 1)For change of particle size: Sr. no. Particle size Wt. of fine particles at top (gm) Wt. of Ash particles at bottom (gm) % of fine particles % of Ash 1. 2. 3. 2)For change of Surrounding temperature Sr. no. Temperature Wt. of fine particles at top (gm) Wt. of Ash particles at bottom (gm) % of fine particles % of Ash particles 1. 2.
  16. 16. Graphs • % coal vs. F/R for 80 micron • % coal vs. F/R for 150 micron • % coal vs. F/R for 212 micron • % coal vs. Pressure for 80 micron • % coal vs. Pressure for 150 micron • % coal vs. Pressure for 212 micron
  17. 17. Conclusion: • Conclusion may be drawn from above curve for maximum % coal at specific flow rate and pressure and particle size.
  18. 18. Place of Work and Facilities Available: • laboratories of Chemical Engg. Department of P.V.P.I.T., Budhgaon, Sangli. • Pawar fabrication work madhavnagar.
  19. 19. Approximate Expenditure: Rs. 45,000/-
  20. 20. References: • 1] A.K.Asmoah, Mineral engineering, volume 10, issue 3, March 1997, 337-339 • 2] F.Concha, A.Barrientos, J. Montero, R. Sampaio; Air core and roping in hydro cyclones; International journal of mineral processing; volume 44-45, March, 1996, 743-749. • 3] Adam Nadudyaniri, Monika J Fabianska, The impact of Water washing, biodegradation and self-heating process on coal waste dumps in the Rybnik industrial region Fuel, 15 Oct. 2016, 527-529. • 4] Mr. Mamun Mollah, M. Marshall, R. Sakhurovs; Attempts to produce blast furnace coke from Victorian brown coal and study on Hydrothermally dewatered and acid washed coal as a blast furnace coke precursor; Fuel, volume 180, 15 September 2016, Pages 597–605. • An empirical model of hydro cyclones incorporating angle of cyclone inclination
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