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15320063HEBEIMETALLURGYTotal1532006,Number3:2006-02-28-(,056015):200t-,:;;:TF32511:B:1006-5008(2006)03-0057-04PROCESSDESIGNOFPRODUCTIONLINEOFGRATE-KILNFOROXIDIZINGROASTEDPELLETANDITSPRACTICEDAIBing(DesignInstitute,HandanIronandSteelCompany,Handan,Hebei,056015)Abstract:Theprocessdesignandequipmentselectionofgrate-kilninoxidizingroastedpelletproductionlinewithannualoutputof2milliontonsareintroduced,aswellasitsactualproductionsituation.KeyWords:gratingmachine;rotarykiln;oxidizedpellet1-,,200t20041120,2005101,218327m2,,,,,,,(100%),,,,,,2211200t327m2,400m2,,400m2,,170m39m,,,,,,F18,,,,,16150m75153HEBEIYEJINPLC,21211-213,-20050%70%,,1010MJ/m3,31800m3/h;,31135MJ/m3,16000m3/h,214FZ18FZ18,213km,FZ18,400m2528m2,,,6,370m3,18h2500mmB1000mm,,,21510%,,316m31m,,100%,,216350t/h,,21(2),,(8-10),,B650mm,,,3(2),,B1200mm,,,,1217(DW29),400t/h,(,,),2189610m(),600mm4353515810r/min,7,28520063,,,,110%,,9mm16mm,2199mm16mm,B1400mmB4750mm,(),5mm,,180mm5mm,,2110,415m5710m,180220mm,21826m/min,11143112m/min(,,)IIIIII(1)II150200,I300350,,,I150200I610m,23m,I2112min(2)IIII400,,I650IIII,II650,,,II400II1510m,53mII5131min(3)II650,,II1000I,II1050,IIIII,,I1210m,43mI4125minIIII,(4)IIII,(),,,,1050II,,II2410m,83m,II8149min,750800,II,II,,2II20117min,,(1)1/m/m2/min/Pa/Pa//I627102112-5500-10080200II1567155131-5500+100180400I12544125-5500-100200650II241088149-5500-1005001050(5)I,100mg/m3,,11210695153HEBEIYEJINm3/h,6kPa,300m2,,120m(6)II,,2II442980m3/h,6kPa,(7),,3,,2111,611m40m,270t/h,4125%,110r/min,01451135r/min(4,,),,,,1030,,,,12501350,25-35min200mm,,,21121250,,200mm,,760mm150150m2,22m,215m,41198km3/h,6kPa;23156km3/h,515kPa;4156km3/h,415kPa4,1030,;650,I;350I;100,,,1502113,45000t4,3200510,242%TFeSiO2CaOS-2006551401450115565796610814201010117080683/(mL/g)/(mL/g)/%/%-200/%/%4438334299096134/t/%TFe/%FeO/%/(N/)/%/%/(m3/t)/(m3/t)/(kWh/t)/%2005-10727575416663130184127788139531162005-1110909764167631280192151491194381962517430137641672005-12122906901786314501672062315896102451981711131199801612006-01122923811016314711112162315894198461482313634157851034,,,,,06