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A fast method of online coal identification
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A fast method of online coal identification

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  • 1. A FAST METHOD OF ONLINE COALIDENTIFICATION IN ADROP TUBE FURNACE
  • 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. METHODOLOGY1. DROP TUBE FURNACE2. FLAME MONITOR3. DATA PROCESS
  • 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. 1. FLAME MONITOR SIGNAL DATAOBSERVATION FLAME WINDOW DETECTOR PROCESSING ACQUISITION PC CIRCUIT
  • 6. 1. DATA PROCESS
  • 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. Correlation coefficientof two matrixes X(n) and Y(n) can be calculated as following
  • 9. RESULT AND DISCUSSION• IDENTIFICATION OF SINGLE COALS
  • 10. 1.IDENTIFICATION OF BLENDED COALS
  • 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. REFERENCES
  • 13. A FAST METHOD OF ONLINE COALIDENTIFICATION IN A DROP TUBE FURNACE