A fast method of online coal identification

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A fast method of online coal identification

  1. 1. A FAST METHOD OF ONLINE COALIDENTIFICATION IN ADROP TUBE FURNACE
  2. 2. INTRODUCTIONAMONG ALL TYPES OF ENERGY THERMAL ENERGY PLAYS A KEY ROLE THE SAFETY AND EFFICIENCY OF RUNNING THE THERMAL POWER PLANTS AREVERY IMPORTANT THE TYPE OF COAL IS MADE SURE THE POWER PLANT SYSTEM CAN BECONTROLLED WELL BUT IDENTIFICATION OF THE COALS ONLINE IS HARD ESPECIALLY FOR THEBLENDED COALS3 FLAME INFORMATION INCLUDING AVG,STD DEV AND OSC FRE ARE EXTRACTEDBY A FLAME DETECTORUSING THIS DATA FLAME FEATURE MATRIXES ARE FORMEDBY CALCULATING THE CORRELATION COEFFICIENT OF THE MATRIXES BOTHSINGLE COALS&BLENDED COALS CAN BE IDENTIFIED WELL
  3. 3. METHODOLOGY1. DROP TUBE FURNACE2. FLAME MONITOR3. DATA PROCESS
  4. 4. • DROP TUBE FURNACE CAN BE DIVIDED INTO TWO SECTIONS IGNITION SECTION &BURNOUT SECTION IGNITION SECTION LENGTH 1500mm ELECTRIC POWER 20KW TEMPERATURE 850C BURNOUT SECTION LENGTH 2000mm ELECTRIC POWER 20KW TEMPERATURE 1350C
  5. 5. 1. FLAME MONITOR SIGNAL DATAOBSERVATION FLAME WINDOW DETECTOR PROCESSING ACQUISITION PC CIRCUIT
  6. 6. 1. DATA PROCESS
  7. 7. where P(n) is the power density of the nth frequencycomponent f(n) of the flame signal, and N is the total number of frequency componentsThe following matrixes would be inducted.
  8. 8. Correlation coefficientof two matrixes X(n) and Y(n) can be calculated as following
  9. 9. RESULT AND DISCUSSION• IDENTIFICATION OF SINGLE COALS
  10. 10. 1.IDENTIFICATION OF BLENDED COALS
  11. 11. CONCLUSION A FLAME MONITOR INCLUDING FLAME DETECTOR IS USED TO IDENTIFY COALS IN A DROP TUBE FURNACE.BY EXTRACTING AVG,STDDEV,OSCFREQUENCY MATRIX OF FLAME SIGNAL.CALCULATE CORRELATIONCOEFFICIENT OF THE MATRIXES BOTH SINGLE &BLENDED COALS CAN BEIDENTIFIED FAST ONLINE
  12. 12. REFERENCES
  13. 13. A FAST METHOD OF ONLINE COALIDENTIFICATION IN A DROP TUBE FURNACE

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