PDF《步进梁式加热炉技术》

feeding and reclaiming by long stroke charging and discharging device;

evaporative cooling 燃料介质 Fuel media 混合煤气 Mixed gas,2000*4.18KJ/Nm3 供热方式 Heating mode 空气、煤气双预热,空气预热温度≥500℃,煤气预热温度≥250℃ Air and gas double preheating, air preheating temperature≥500℃,gas preheating temperature≥250℃ 烧嘴形式 Form of burner 均热段上部:平火焰烧嘴;

其它各段:大调节比、低NOX调焰烧嘴 Top of soak section: ?at-?ame burner;

other sections: large regulation ratio, ultra low NOx long ?ame-adjusting burner 坯料规格 Billet speci?cation 230mm*1400mm*11000mm 加热钢种 Steel grades to be heated 碳素结构钢、锅炉及压力容器用钢、造船用钢、管线用钢、耐候钢、桥梁用钢、双相(DP)等Carbon structural steel, boiler and pressure vessel steel, shipbuilding steel, pipeline steel, weathering resistant steel, bridge steel and double phase (DP) etc. 产量 Throughput 350t/h 尺寸 Dimension 加热炉有效长50900mm;

加热炉内宽11700mm Effective length of reheating furnace 50900mm;

inner width of reheating furnace 11700mm 技术特点 Technical features 采用长行程装钢机热装作业,热装率可达到90% With direct charging by long stroke steel charging machine, direct charging rate can achieve 90% 大型板坯蓄热、预热组合步进梁式加热炉 Regeneration and preheating combined walking beam reheating furnace for large slab 首钢迁钢1580mm热轧270t/h*2加热炉 2x270t/h Reheating Furnaces for Shougang Qiangang 1580mm Hot Rolling Mill 该项目具有较高的整体工艺装备水平及自动化控制水平,运行指标达到国际先进水平. Equipped with relatively high overall process and technology level, equipment level and automatic control level, the operation indices of this project has reached international advanced level. 形式 Type 大型板坯加热炉;

长行程装、出料机装、出料;

汽化冷却 Reheating furnace for large slab;

feeding and reclaiming by long stroke charging and discharging device;

evaporative cooling 燃料介质 Fuel media 混合煤气 Mixed gas,2300*4.18KJ/Nm3 供热方式 Heating mode 煤气预热、空气蓄热与预热结合,煤气预热温度≥250℃,空气蓄热温度≥1000℃ Gas preheating, air regeneration and preheating, gas preheating temperature≥250℃, air regeneration temperature ≥1000℃ 烧嘴形式 Form of burner 均热段上部:平火焰烧嘴;

其它各段:空气单蓄热式烧嘴 Top of soak section: ?at-?ame burner;

other sections: air single regenerative burner 坯料规格 Billet speci?cation (8000~10500)mm*(800~1470)mm*230mm(单排 single line);

(4500~5000)mm*(800~1470)mm*230mm(双排 double line) 加热钢种 Steel grades to be heated 优质碳素结构钢、低合金结构钢、桥梁用结构钢、汽车大梁用钢、高牌号无取向硅钢等 Quality carbon structural steel, low alloy structural steel, bridge structural steel, automobile frame steel, high grade non-oriented silicon steel etc. 产量 Throughput 270t/h(普碳钢);

220t/h(无取向硅钢) 270t/h(carbon steel);

220t/h(non-oriented silicon steel) 尺寸 Dimension 加热炉有效长43600mm;

加热炉内宽11100mm Effective length of reheating furnace 43600mm;

inner width of reheating furnace 11100mm 技术特点 Technical features 采用蓄热和预热组合式燃烧技术、三流股宽火焰超低NOx蓄热烧嘴技术、蓄热烧嘴全分散换向技 术、蓄热烧嘴低负荷时序 间拔 控制技术、支撑梁汽化冷却技术、坯料炉内 梅花 定位技术、优 化加热的二级控制系统等综合技术 Comprehensive technologies are applied such as regeneration and preheating combined combustion technology, three-strand wide flame ultra low NOx regenerative burner technology, all scattering regenerative burner reverse technology, interval control technology by low load regenerative burner sequence, support beam evaporative cooling technology, club position technology in billet furnace, L2 control system for optimized heating