小型钢铁厂50万吨电炉炼钢、连铸连轧生产线建设草案

1、小型钢铁厂50万吨电炉炼钢、连铸连轧生产线建设草案ANNUAL CAPACITY OF 500,000t/a STEELMAKING ANDROLLING PROCESS CONCETP目录 TABLE OF CONTENTS总论 SUMMARY1. 1项目提出OBJECTIVE2 建设规模 CONSTRUCTION SCALE3 产品初步方案 PRIMARY PRODUCT SCHEDULE炼钢 STEELMAKING1 工艺及设备选择 PROCESS AND EQUIPMENT2 生产方法 PRODUCTION METHOD3 炼钢工艺流程 STEELMAKING PROCESS FLOW

2、3. 1 流程 PROCESS FLOW3. 2 工艺流程简述 INTRODUCTION TO THE PROCESS FLOW2. 4 炼钢主体设备及主要参数 MAIN STEELMAKING EQUIPMENT AND PARAMETER2. 4. 1 电弧炉 ELECTRIC ARC FURNACE2. 4. 2 钢包精炼炉 LADLE FURNACE2. 4. 3 连铸系统 CONTINUOUS CASTING MACHINE2. 5炼钢、精炼及连铸各项主要指标MAIN TECHNICAL AND ECONOMIC INDEXES2. 5. 1 电炉指标 ELECTRIC ARC FU

3、RNACE2. 5. 2 LF炉指标 LADLE FURNACE2. 5. 3 连铸机指标 CONTINUOUS CASTING MACHINE2. 6 主要原材料 MAIN RAW MATERIAL2. 6. 1 废钢、生铁 SCRAP、PIG IRON2. 6. 2其它材料 OTHERS6. 3 电极 ELECTRODE棒材轧钢生产线 TWISTED STEEL PRODUCTION LINE1 工艺及设备选择 PROCESS AND EQUIPMENT2 生产方法选择 PRODUCTION METHOD3 工艺流程 PROCESS FLOW4 工艺流程简述 INTRODUCTION TO

4、 THE PROCESS FLOW5棒材轧机主设备及参数MAIN EQUIPMENT AND INDEXES6棒材规格品种PRODUCT MIX4小型型钢轧钢生产线SECTION STEEL PRODUCTION LINE1 工艺及设备选择 PROCESS AND EQUIPMENT CHOSEN2 工艺流程 PROCESS FLOW3 工艺流程简述 INTRODUCTION TO THE PROCESS FLOW4型材轧机设备及参数 MAIN EQUIPMENT AND INDEXES5型材轧制规格品种PRODUCT MIX动力能源 THERMAL AND POWER SUPPLY1 热力

5、THERMAL2 供电 POWER SUPPLY环境保护 ENVIRONMENTAL PROTECTION设备费用 MAIN EQUIPMENT INVESTMENT ESTIMATE其它 OTHERS总论 summary1. 1项目提出objective炼钢能力55万吨，配公司现有螺纹钢连轧生产线及另外添置一条小型型钢生产线，共计50 万吨轧钢能力，形成完整的的共计50万吨连铸连轧的生产线，以供市场需求。This plan prepares to construct 550,000 tons annual steelmaking capacity, 300,000 tons in twist

6、ed steel rolling and 200,000 tons in section steel rolling per year, to form an integrated steel production line, so as to meet the requirement of the market.2 建设规模 construction scale按公司现有的螺纹钢连轧生产线为基础，并另配一条小型型钢生产线，上游配套相应的炼钢 连铸生产线，建成炼钢厂、轧钢厂，形成一条完整的生产链。There is a twisted steel rolling line now, a sect

7、ion steel rolling line and steel making line need to be added to form a complete product line.炼钢厂主要装备50吨交流偏心底出钢（50tAC/EBT）电弧炉2座，50吨钢包精炼炉一座， 三机三流多功能方圆坯连铸机一台（R8m或R9m）。在目前条件下以全废钢为原料，形成短 流程炼钢生产线，年产钢水55万吨、连铸坯53万吨（150220方坯或150220圆坯）。The main equipment in steelmaking plant are composed of two 50tAC/EBT ele

8、ctric furnace, one 50t ladle furnace and one R8m(or R9m) threemotor and threeflow continuous casting machine. The materials are mainly scrap. The production capacities are 550,000 tons per year for steelmaking and 530,000 tons per year for casting bloom. The cast product section size ranges from 120

9、mmx120mm to 220mmx220mm.轧钢厂分两部分，其一以我公司现有棒材连轧生产线为基本模式，由20架全水平式机组组 成棒材连轧生产线，除生产螺纹钢外，考虑生产圆钢管坯钢等产品，年生产能力30万吨； 同时另建一条半连轧小型型钢生产线，年生产能力每年20万吨。The steel mill is made up of two parts, one is Chanrongs existing continuous steel rolling production line, which consists of 20 full horizontal mill trains, and the

10、 production capacity is 300,000 tons per year for twisted steel. Another is the half-continuous steel rolling production line planned to be built for section steel; its production capacity is 200,000 tons per year.3 产品初步方案 product primary mix棒材产品方案为大、小规格比较齐全的II级III级螺纹钢，低合金结构钢种圆钢及碳素管坯圆 钢。螺纹钢可为3210系列，

11、圆钢可为50120系列；型钢产品方案为小型角钢、槽钢、 工字钢，规格为10 #-20#。For twisted steel, the production capacity is 300,000t per year; the product size is 10-32mm. The grade is HRB335 and HRB400.For section steel, the production capacity is 200,000t per year. The products includes angle, channel and I-beam, the production si

12、ze is from 10# to 20#.2 炼钢 steelmaking1 工艺及设备选择 process and equipment choice炼钢厂主要原料为各种工业、民用及军用废钢，根据资源情况可配入生铁，同时寻求铁水或 还原铁等其它资源。The main raw material is scrap steel, mainly industrial, civilian and military supplies. Depending on condition, pig iron, molten iron and DRI etc could be used.工艺流程为：废钢生铁加入5

13、0吨偏心底出钢电炉初炼脱P、脱C去除夹杂气体及有害物质 后进入50吨钢包精炼炉脱气精炼，并除S、调整化学成分和钢液温度。精炼后的钢水用行 车吊至连铸机后铸成坯，铸机连浇炉数N5炉。Process flow: scrap and carbon-added pig iron are fed into 50t EBT electric furnace to be melted; phosphorus, carbon, gas and impurity in the liquid steel are removed. Then the liquid steel will be tapped into

14、the ladle furnace for refining, de-airing, desulfurization and adjustment of chemical composition as well as temperature. Finally, the ladle containing the qualified liquid steel is hoisted to casting machine where the qualified liquid steel is casted into blooms. There are casting machines with cap

15、acity to mach the more than 5 furnaces.工艺设计与设备选型以简单实用为原则，采用不带加热隧道的50吨高功率偏心底出钢交流 电弧炉2座配1台精炼炉配1座连铸机的模式，即2+1+1模式。In choosing the process and equipment , we follow the principle of simplicity and economical. The main equipment in steelmaking consists of two 50t EBT high power electric arc furnaces with

16、no pre-heating device, one ladle furnace (LF) and one continuous casting machine; it is the so-called 2+1+1 model.主要设备选型为：Main equipment:50吨偏心底出钢高功率电弧炉2座；Two 50t EBT high power electric arc furnaces;50吨LF钢包精炼炉1座；One 50t ladle furnace (LF);R9米三机三流弧形连铸机1座。One R8m threemotor and threeflow continuous ca

17、sting machine;以上设备均为中国成熟设备，结构简单，维护方便，一般的备品备件均可就地解决。The above equipment are all made in China, with matured technology, simple construction, excellent capability, easy maintence and the spare parts are easily available.为长远发展考虑，钢包精炼炉可预留抽真空工位。With future development in mind, there will be space allocat

18、ed in the LF zone for vacuum device.2 生产方法 production method炼钢方法为2对1对1的短流程冶炼工艺设置，即2座50吨偏心底电弧炉配1座50吨LF 精炼炉配一台R8米三机三流连铸机以及其它辅助设备。所有设备特别是30吨电炉都是国 内成熟可靠的设置，简单易行，维护方便，备品备件容易就地取材。配置2台50吨电炉还 可以在其中一台出故障时，仍可继续维持生产，避免全线停工。The steelmaking production line is composed of two electric furnaces, one LF, one R8m th

19、reemotor and threeflow continuous casting machine. The two furnaces will ensure that when one malfunctions, the other can continue to be used so that there will be continuous production.根据目前中国冶炼水平及国际炼钢发展的趋势，在炼钢车间建设中尽可能地配置成熟的先进 工艺装备。应用如下成熟的先进技术：Based on current Chinese and international metallurgy te

20、chnology level and current, matured and advanced technologies should be applied in the construction of the mill, as follows:偏心炉底无渣出钢与炉中留钢留渣操作；EBT mechanism for tapping, during tapping process, no slag output, slag and excess steel remained in electric arc furnace for next steelmaking process.炉门C-O枪喷

21、吹助熔、炉壁天燃气喷吹助熔及二次燃烧技术；There is a carbon oxygen lance in the furnace door and oxygen burner on the furnace wall to assist the melting of the burden.密排式水冷炉壁及水冷炉盖；Closed water-cool furnace wall and furnace cover.泡沫渣埋弧冶炼技术；Slag foaming technology.电炉除尘采取半密封罩和屋顶罩排烟、袋式除尘器净化；New-fashioned dusting technology.

22、炉外精炼技术；LF refining method.全连铸；Continuous casting.管坯钢连铸时采取保护浇铸；If necessary, protected casting method could be used.短流程生产线；Short process in steelmaking.电气控制采用可编程序控制器(PLC)；PLC is used in electrical system.电炉机械系统采用全液压控制。Hydraulic technology is used in steelmaking mechanical system.2. 3炼钢工艺流程process flo

23、w2. 3. 1 流程 process废钢、生铁炉料装入电炉一给电熔化一碳氧枪吹氧助熔一炉料熔清一造泡沫渣去P去碳、 调整钢液成份与温度一电炉偏心底留渣出钢、钢包中初步合金化、造渣一进入精炼工位一精 炼炉通电化渣热平衡同时全过程底吹氩一脱氧造白渣一调整合金成份与温度一出精炼工位 -钢包上回转台一钢包开浇钢水到中间包一中包开浇钢水到结晶器一拉坯一定尺切割一精 整及分炉号一红送至轧钢加热炉Scrap and carbon-added pig iron are fed into electric furnace electricity is used to melt the material car

24、bon oxygen lance and oxygen burner are used to work to assist melting melting finished to make foaming slag, dephosphorization, carbon elimination, as well as adjusting the chemical composition and temperature tapping to ladle where primary alloying and slagging are to be made to put the ladle on LF

25、 position refining, argon blowing deoxidation, desulfurization, slag whitening adjusting chemical composition and temperature the ladle leaving LF position to put the la dle on ladle rotator of continuous casting machine molten steel drops down into surge tank(tundish) molten steel drops down into c

26、rystallizer casting cutting bloom according to size inspection bloom is sent to steelmaking workshop这是一条比较先进的电炉初炼、LF炉精炼、全连铸短短炼钢生产线。This is an advanced short process production line.3. 2 工艺流程简述 introduction to the process flow炼钢炉料由废钢、生铁组成，其比例由资源情况而定，一般生铁量不超过30%，由天车电 磁吊将废钢装入料罐进行配料。每炉不超过两次料。经检斤后由过跨车由配料

27、跨送至炼钢跨， 由炼钢跨天车由炉顶加入原料。The scrap and pig iron are mixed in certain proportion which depending on resource condition, the proportion of pig iron is generally less than 30 percent. These raw materials are charged into bucket by electromagnetic lifter. After the bucket is weighed, it is conveyed from th

28、e raw material span to smelt span by platform car. In smelt span, the bucket is hoisted to the position above the top of electric furnace, and then scrap and pig iron are fed into the furnace. The raw materials could be charged not more than twice into the furnace.关闭炉盖通电冶炼，电炉采用强化冶炼的措施，采用高功率送电，造泡沫渣，炉

29、门口碳氧喷 枪强化用氧，用氧强度达到45Nm3，炉壁喷枪喷吹天然气。所需造渣材料石灰、萤石等由 炉顶加料机或炉门口人工加入。炉渣处理采用热泼渣工艺，由铲车送出车间集中处理。Then, the furnace cover is closed, high power electrifying begins. At the same time, carbon oxygen lances on the furnace door and oil-oxygen burner on the furnace wall assist the melting of the burden and make foam

30、ing slag. Oxygen consumption is about 45Nm3 /t. The other materials such as lime and fluorite etc are added into the furnace by feeding-machine or manual labor. Electric furnace slag will be treated with water spraying, collected and transported out of the workshop for treatment.电炉由人工热电偶测温，人工取样送化验室分

31、析成份。当电炉冶炼的钢水符合初炼要求时， 经偏心底无渣出钢到钢包车上的钢包中，再送至精炼炉精炼。钢包出钢前通好氩气并加入造 渣材料。出钢时将事先准备好的铁合金随钢流加入包中。电炉内留钢大约为5吨。Electric thermometer is used to measure temperature of the furnaces. The specimen is collected manually and sends to laboratory for composition analyzing. When the results meet the initial set requireme

32、nts, the melted burden will be tapped through an EBT mechanism to a receiving ladle that is on a special platform car. Before tapping, ensure argon flow and slag former will be put into the ladle. while tapping, ferroalloys are poured into the ladle. There will be about 5t of excess melted steel lef

33、t in the furnace.接钢后的钢包在精炼工位上进行精炼。钢液精炼全过程吹氩搅拌，用造渣材料和脱氧剂调渣， 调整电流进行调温，加入铁合金进行成分的调整。精炼炉投产初期不上真空工位，但预留此 功能，以为今后的发展留有余地。After tapping, the ladle is put on LF refining position. LF refining is conducted through arc heating and argon blowing. During this process, the steel deoxidization, desulfurization, t

34、he adjustment of steel temperature and chemical composition are completed.In primary phase, there is no vacuum function in LF, but space for vacuum device may be allocated in LF zone for future development.精炼合格的钢水以大包滑动水口至中间包，再将钢水浇注到结晶器中。从结晶器中拉出的钢 坯经多点矫直，剪切后，成为合格的坯料。生产管坯料时，将采用长水口无氧化浇注技术。The ladle con

35、taining qualified liquid steel is hoisted to a ladle rotator of the continuous casting machine. The liquid steel is then tapped from the base of the receiving ladle to tundish, after that, it drops down into crystallizer to be casted into bloom. The bloom will be straightened, cut according to dimen

36、sions and sent to a cooling bed through a roller table. It will then become qualified bloom.中间包采用10吨容量，以减少中间包内的温度损失，并可稳定连铸的浇注速度。The tundish has a capacity of 10 tons, so as to reduce the loss of temperature and to keep the casting speed steady.2. 4炼钢主体设备及主要参数 main steelmaking equipment and parameter

37、2. 4. 1 电弧炉 electric furnaceModel: high power EBT alternating current electric furnace.台数：2 台。 Quantity: 2公称容量：50 吨。 Nominal capacity: 50 tons.单炉出钢量：56 吨。 Average tapping: 56 tons.炉壳内径：4700mm inside diameter of fUrnace shell:4700mm炉变容量：24MVA Transformer capacity: 24MVA一次电压：35KV Primary voltage: 35KV

38、二次电压：430V170V Secondary voltage: 430V170V电极直径：450mmElectrode diameter:450mm驱动方式： 液压。 Driving force: hydraulic pressure结构形式：高架式。高架式比地面式有优越的工作环境。同时可采取水泼渣，节省渣罐及渣 罐车。Structure: hoist up model. This model is preferable to the ground level model as it gives favourable working conditions. Water spraying ma

39、y be used to treat electric furnace slag, saving cost on slag basket and slag car.二次出线和电炉横臂间由集束式水冷电缆连接，横臂采取复合式导电横臂，横臂中腔水冷。 这些大大提高了导体导电性能，同时具有很高的设备可靠性。The connection between transformer-output and furnace-arm, is by bunch water-cooling cable.The furnace-arm is a combined type and can conduct electric

40、ity. To improve electro conductibility and equipment dependability immensely, the cavity of the furnace-arm is water-cooled.电极升降动作采取液压系统驱动，电液比例阀进行控制，动作灵敏可靠。The electrode movement is driven by hydraulic pressure. Electro-hydraulic proportional valve controls the movement, it is sensitive and reliable

41、.炉盖为密排式水冷炉盖，使用寿命可达30004000次。炉体上部采用挂渣水冷块，寿命长， 并节约大量耐火材料。Furnace cover consists of closed up water-cooling pipes. The cover can be used for 30004000 times. Topside of furnace wall consists of water-cool parts; it has long useful life and save cost of refractory.2. 4. 2 钢包精炼炉 ladle furnace型式：桥架式Model:

42、Bridge.台数：1 台Quantity: 1单台容量：50 吨 Nominal capacity: 50 tons.炉变容量：10MVA Transformer capacity: 10MVA一次电压：35KV Primary voltage: 35KV二次电压：300400V Secondary voltage: 300V400V钢包自由空间高度:350mm The ladle free height: 350mm （注：若将来上真空工位时，自由空 间大大增加，钢包需重新选型）电极直径：350mm Electrode diameter:350mm主要驱动方式： 液压。 Driving f

43、orce: hydraulic pressure 采用水冷炉盖、集束式水冷电缆。Water-cooling cover and bunch water-cooling cable are used.精炼炉附近附设吹氩装置，精炼过程全程吹氩。Near by the LF, there is an argon blow device. Argon blowing is performed throughout the refining process.2. 4. 3 连铸系统 continuous casting machine三机三流 R9 米弧形连铸机。Casting machine: R9m

44、, 3-motor and 3-flow.中间包容量：10 吨。Tundish capacity: 10 tons.结晶器结构：管式弧形，窄水缝导流水套式。Crystallizer: tube-arc type with narrow water crack.浇注钢种：ii级与m级螺纹钢及小型型钢所涵盖的所有钢种的钢坯，碳素管坯钢，低合金钢。Steel grade: the bloom to be casted is material for type II and m twisted and section steel.铸坯断面尺寸：1202mm, 1502mm, 2202mm, 180X2

45、20mm矩形坯及220mm圆坯等。Cast product section size: 1202mm, 1502mm, 2202mm.连浇炉数：N5炉。2. 5炼钢、精炼及连铸各项主要参数指标main technical and economic indexes2. 5. 1 电炉指标 electric furnaceNo序号Name名称Unit单位Index数值1Nominal capacity电炉公称容量T吨502quantity of furnace电炉座数座23Inside diameter炉壳内径mm4700mm4Transformer capacity电炉变压器额定容量MVA245

46、Electrode diameter电极直径mm450mm6Average tapping平均出钢量t567Average Smelting period平均冶炼周期min908Annual Operation days电炉年作业天数d3109Annual capacity年产钢水量t277760 x2=55552010Electricity consumption电炉吨钢冶炼电耗kwh/t45011Electrode consumption吨钢单极电耗Kg/t3.512Oxygen consumption吨钢综合用氧量M3/t482. 5. 2 LF炉指标LFNo序号Name名称Unit单位

47、Index数值1Nominal capacity容量t502QuantityLF炉座数座13Transformer capacity变压器额定容量MVA104Electrode diameter电极直径mm03505Refining period of LF精炼周期min30556Electricity consumption吨钢精炼电耗kwh/t407Electrode consumption吨钢精炼电极耗Kg/t0.58Argon consumption段钢精炼耗氩量M3/t0.32. 5. 3 连铸机指标 continuous casting machineNo序号Name名称Unit单

48、位Index数值1Arc Semi diameterm8半径2Flow流数流33Casting speed拉速m/s13.54Matching capacity连浇炉数Furnace quantity炉55Mould tube consumption铜管消耗g/t406Cooling water consumption吨钢连铸耗水M3/t0.62. 6 主要原材料 main raw material2. 6. 1 废钢、生铁 scrap, pig iron废钢主要为当地的民用废钢、工业废钢及军用废钢。Source of scrap mainly from local, industrial,

49、civilian and military supplies.废钢基本要求：Requirements of scrap:体积密度：1.0吨/m，Geometrical size： Maximum length0.6m几何尺寸：最大长度W0.6mMaximum section： 0.5x0.5m最大断面：W0.5 X 0.5mMaximum lump weight： 1000 kg最大单块重量：1000 kgImpurity contents： 0.05%杂质含量：W0.05% P、S 含量低。 P、S contents: Low废钢严禁混有爆炸物与密闭容器，不得含有毒物质，不得含有油污及有色金

50、属，废钢表面应清洁干燥。The scrap should not be mixed with sealed containers, explosive , toxic materials, oil residue and non-ferrous metal. Scrap surface must be clear and dry.生铁按炼钢生铁国家标准执行。Requirements of pig iron: It follows the national pig iron standard.2. 6. 2其它材料others其它材料如石灰、萤石、碳粉、铁合金等按国家标准执行。Other mat

51、erials such as lime, powdered carbon, fluorite, ferroalloy etc follow the national standard.6. 3 电极 electrode电炉采用450mm中国生产超高功率电极。精炼炉采用350mm中国生产高功率或普通功 率电极。The electrode used in furnace and LF are made in China, the diameter of which are 450mm and350mm respectively.The grade of the electrode may be f

52、or extra power, high power or normalpower usage.（轧钢部分，棒材、型材）3棒材轧钢生产线1工艺及设备选择棒材轧钢厂工艺流程与设备以我公司现在棒材生产线为蓝本。加热炉加热用天然气或煤气。 加热炉仍可采用现有的实心炉底推钢式结构，也可考虑采用步进式加热炉。轧机为20架水 平机架组成。连铸坯由炼钢厂热送（特别情况下冷装）至轧钢厂，在热态下直接进入加热炉 加热。红坯经过650初轧机1架、465粗轧机7架，经1#飞剪切头后进入中轧（365x4）。 中轧与精轧机组间设一台飞剪，用于轧件分段及实现分道轧制。精轧由8架水平机组（320 x8）构成，由8台450K

53、W直流电机单独传动，其转速单独可调。 精轧机组的数量可根据轧制规格进行调整。精轧机组后有水冷却装置。成品经过水冷却后被移送到步进式冷床，再经过冷剪定尺剪切后 打捆入库。为使中轧短料充份利用，精轧机组采取直线排列，原精轧机组之间的回转盘取消。2生产方法选择本方案中轧钢采用全连轧方式，轧线为我公司现有的小型棒材全连轧轧机，与轧线前面的炼 钢、连铸相互配套，形成一个完整炼钢连铸连轧短流程生产线，实现连铸坯的热装 热送，达到节省能源，生产高效的效果。轧线由20架机架组成，其中650粗轧机1架，465粗轧机7架，365中轧机4架，320 精轧机8架。均为水平机组。轧机的架次可根据产品规格的大小酌情增减。

54、当轧1202mm连 铸坯时，650机架不用；当生产不同小规格产品时，可相应减少精轧机架次。精轧机组后有水冷却装置。成品经过水冷却后被移送到步进式冷床，再经过冷剪定尺剪切后 打捆入库。为使中轧短料充份利用，精轧机组采取直线排列，原精轧机组之间的回转盘取消。加热炉加热方式采用煤气加热。煤气由能力3300M3/小时，直径2.5M的煤气发生炉产 生；重油或天然气加热。中东盛产在石油及天然气，采用重油或天然气加热更经济，更方 便，成本相对低廉。加热炉加热能力250吨/小时。3. 3工艺流程连铸坯热送（个别情况下冷送）一加热炉加热一全水平粗轧机组轧制 （650 x1+465x2+465x3+465x2）

55、1#飞剪切头（事故碎断）全水平中轧机组轧制 （0365x2+0365x2）倍尺飞剪分段进入分道器分道0320 x8全水平直流单拖精轧机组 轧制穿水冷却步进冷床冷却冷剪切定尺打捆称重入库3. 4工艺流程简述原料采用冷坯与热坯两种方式组织生产。采用热送时，热连铸坯由连铸车间直接移送至轧钢 车间原料跨，再用天车将热连铸坯吊至加热炉冷、热坯兼用的上料台架上，由入炉辊道运送 至炉尾，经推钢机运入炉内加热。当轧机出现故障或连铸与轧机在生产组织上不协调时，热 坯布可吊入原料跨内存放，需要时继续入炉加热。热装的连铸坯温度400C时，节能效果 明显。冷坯装炉方法与热坯相同。加热炉用煤气时，所用煤气由五台煤气发生

56、炉提供。一般按4用1备的原则进行使用。重油加热时，重油在加热炉中雾化燃烧加热；天然气加热时，天然气直接在炉内燃烧加热。 根据加热制度的要求，方坯在加热炉中加热至1100-1200C时，由炉内输出辊道将方坯送 入出炉辊道，运往粗轧机组轧制。轧钢生产线由20架轧机组组成，其中0650初轧机1架（原料为150方以上时用，原料为 120方时不用），0465粗轧机三组7架，分别为0465x2+0465x3+0465x2,三组分别由600、 800、600KW交流电机拖动。粗轧机前有夹送辊，用于送钢和清除氧化铁皮。从粗轧机组出来的轧件，经1#飞剪切头（事故碎断）后进入中轧机组轧制。中轧机4架，为两组（03

57、65x2+0365x2） 一拖二轧机。分别由480KW电机传动。 中轧机组与棒材精轧机组间设一台飞剪（2#飞剪），用于轧件分段。飞剪后有一架分道器， 轧件分段后进入分道器，分道器后有四个导槽，分段后的轧件由分道器按序拨入不同的导槽 输，由输送辊道送入精轧。精轧机组可在一个辊面上同时轧制2.5个轧件。棒材精轧机组由8架全水平布置的机架组成（320 x8），由8台450KW直流电机单独传动， 成直线排列。成品最大轧制速度为14m/s。精轧机组后设穿水冷却装置。通过穿水冷却，提高成品的机械性能，并能降低轧件上冷床的 温度。轧件经穿水冷却后，由变频辊道将轧件送至步进式冷床，轧件在步进移送过程中均匀冷却。 冷床上设有齐头辊道，经冷却的轧材齐头后由四连杆平托机构成排托送至冷床输出辊道上， 再由冷床输出辊道送往冷剪切成定尺，齐头打捆后称重入库。3. 5棒材轧机主体设备及参数棒材轧机主设备主要参数指标表序号名称单位数值1加热炉有效长度米22.12加热炉有效宽米6.553出钢温度C1100-12004加热介质煤气或天然气5平均加热能力t/h526最大轧速m/s147粗、中轧机架形式闭口式8精轧机架形式