Research Article

# Quality Prediction and Control of Reducing Pipe Based on EOS-ELM-RPLS Mathematics Modeling Method

## Table 3

Iterative learning calculating result of wall thickness of reducing tube.
 Ser. number Variable name Initial value First learning value Second learning value Third learning value Fourth learning value 1 Rotary speed of Number 1 reducing mill 1137.52 1136.51 1134.25 1133.15 1132.53 2 Rotary speed of Number 2 reducing mill 1133.82 1132.65 1131.58 1130.52 1130.22 3 Rotary speed of Number 3 reducing mill 1288.24 1288.93 1289.36 1290.05 1290.22 4 Rotary speed of Number 4 reducing mill 1409.32 1408.31 1407.15 1406.53 1406.17 5 Rotary speed of Number 5 reducing mill 1485.26 1483.84 1482.37 1480.98 1480.68 6 Rotary speed of Number 6 reducing mill 1458.81 1459.84 1460.37 1460.64 1460.87 7 Rotary speed of Number 7 reducing mill 1179.95 1178.68 1177.55 1177.09 1176.95 8 Rotary speed of Number 8 reducing mill 1110.95 1109.72 1108.66 1107.85 1107.62 9 Rotary speed of Number 9 reducing mill 1290.43 1291.42 1292.37 1293.21 1293.38 10 Rotary speed of Number 10 reducing mill 1220.67 1219.55 1218.76 1217.84 1217.52 11 Rotary speed of Number 11 reducing mill 1143.38 1141.75 1140.53 1139.61 1138.92 12 Rotary speed of Number 12 reducing mill 1103.21 1102.33 1101.36 1100.52 1100.22 13 Current of Number 1 reducing mill 35.46 34.75 34.24 33.97 33.91 14 Current of Number 2 reducing mill 52.48 51.62 51.28 51.07 50.98 15 Current of Number 3 reducing mill 41.54 42.37 42.97 43.31 43.42 16 Current of Number 4 reducing mill 134.52 133.75 133.24 133.94 133.87 17 Current of Number 5 reducing mill 218.21 217.47 216.84 216.37 216.28 18 Current of Number 6 reducing mill 332.46 333.23 333.86 334.32 334.44 19 Current of Number 7 reducing mill 324.46 323.71 323.14 322.71 322.62 20 Current of Number 8 reducing mill 302.35 301.43 300.85 300.18 300.02 21 Current of Number 9 reducing mill 326.87 327.95 328.56 328.83 328.92 22 Current of Number 10 reducing mill 324.37 323.65 323.15 322.97 322.88 23 Current of Number 11 reducing mill 325.84 324.77 324.24 323.95 323.86 24 Current of Number 12 reducing mill 274.94 274.04 273.65 273.13 273.04 25 Torque of Number 1 reducing mill 251.64 252.31 252.88 253.23 253.32 26 Torque of Number 2reducing mill 320.48 321.25 321.93 322.35 322.52 27 Torque of Number 3 reducing mill 62.44 63.12 63.34 63.52 63.57 28 Torque of Number 4 reducing mill 445.85 446.87 447.66 448.02 448.21 29 Torque of Number 5 reducing mill 652.48 650.36 648.82 647.74 647.48 30 Torque of Number 6 reducing mill 1042.68 1040.24 1039.07 1038.21 1037.98 31 Torque of Number 7  reducing mill 1204.15 1203.26 1202.77 1202.35 1202.12 32 Torque of Number 8 reducing mill 1251.42 1250.15 1249.14 1248.48 1248.22 33 Torque of Number 9 reducing mill 1175.25 1176.37 1177.06 1177.84 1178.12 34 Torque of Number 10 reducing mill 1214.85 1213.45 1212.84 1212.25 1212.07 35 Torque of Number 11 reducing mill 1316.47 1317.57 1318.16 1318.54 1318.75 36 Torque of Number 12 reducing mill 1224.46 1223.24 1222.63 1222.22 1221.97 37 The temperature of shell 886 892 896 898 901

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