OCR Text |
Show or\\O 50 ~\1\Jn' NOJ~ TABL NO.1 Coal and Ash Analysis Good Performing Coals Marginal Coals Ultimate (% Dry) Carbon Hydrogen Oxygen Nitrogen Ash Sulfur Total Moisture HHV ( As Re c ' d • ) Btu/lb. Proximate (% Dry) F.C. Vol. Ash Grind Index Slagging/Fouling B/ A Ratio RS (Slagging) RP (Fouling) IT (OF) (Initial Deform. ) ST (OF) (Softening) (H) 75.4 5.1 5.5 1.6 9.6 8 5.0 13,160 51.4 39.0 9.6 55.9 (G) 73.5 5.0 6.8 1.5 10.6 2.8 6.8 12,530 49.7 39.7 10.6 53.0 0.35-0.45 0.30-0.38 Med. Med. Med. to Low Low to Med. 2,000 2,060 TABLE 2,000 2,070 NO.2 Burner Airflow Distribution Avon 9 Field Test (P) 71.6 5.0 6.5 1.5 11.4 4.1 4.7 12,410 46.9 41.7 11.4 53.5 0.43-0.49 Med. to High Med. to Low 1,930 2,000 All Registers Open/No Primary Air Front Burners Across Rear Burner Rows 1 2 3 4 5 6 7 8 9 10 11 1 103 103 99 98 99 105 103 102 103 102 102 2 101 100 99 104 97 95 99 101 101 102 92 3 104 103 101 97 194 98 100 102 104 101 99 4 103 98 102 94 93 96 97 99 98 99 100 Aver. 103 101 100 98 98 99 99 101 102 101 98 Total Front 99.8% 2.9% RMS Total Rear = 100.2% All Registers Open/All Primary Air On Front Burners Across Rear Burner Rows 1 2 3 4 5 6 7 8 9 10 11 1 87 85 102 107 94 113 88 112 94 110 112 2 107 108 111 108 103 101 103 113 104 107 99 3 113 98 97 90 110 88 104 96 117 88 88 4 95 90 87 95 94 99 105 106 104 89 86 Aver. 101 95 99 100 100 100 100 107 105 98 96 99.3% 100.7% Front 8.8% RMS Rear 9.1% RMS 9.0% RMS (S) 71.0 4.9 6.4 1.4 12.5 3.8 7.3 12,100 48.0 39.5 12.5 53.2 0.34-0.41 Med. Med. 12 98 100 102 99 100 12 106 92 93 99 98 1,960 2,040 Aver. 101 99 101 98 Aver. 101 105 99 96 Note: Having the pulverizers on with primary airflow had a negative effect on the flow distribution. |