300BF.docx

1、300BF1 概述General 建成一座300m3高炉及相应的辅助设施，生产规模为28万吨炼钢铁水，同时建设相配套的铸铁机、喷煤站、高炉煤气发电等设施。The scope of design includes a 300 m3 BF and auxiliary facilities matching pig casting machine, PCI station and power plant running BF gas etc. The production capability of hot metal is 0.28mtpa.2 设计依据 Design basis2.2工程技术资料

2、要求。Requirements of engineering technical documents3 建设规模、产品、工艺流程及物料平衡 Construction scale, products, process flow and material balance 3.1 建成后的工程规模为：Project scale after completion年产28104t炼钢铁水，全部供给炼钢车间，可生产30万吨钢。0.28mtpa hot metal production for steel-smelting will all going to pig casting plant which

3、can produce 0.3mtpa steel.3.2 工艺流程及物料平衡 Process flow and material balance按年产28104t铁水进行前后工序平衡，详见物料平衡图：The balance is made in all the process procedure according to 28104tpa.Details are shown in the following material balance chart.物料平衡图 单位：104t/a material balance chart unit: 104t/a矿粉 燃料 熔剂 Fines Fuel

4、 Flux41.9 2.1 8.37 36m2 sintering machine lump ore coal coke （sinter）38 16.15 3.75 14.50 300 m3 BF Water slag 12.32 hot metal28 BF gas 6.5104Nm3/h Pig casting workshop320m3高炉主要技术经济指标表 320m3 main technical economy index table序号名 称单位指标备注1高炉容积m33002高炉利用系数t/m3d2.65最大3.23焦比kg/tHM480.04煤比kg/tHM120设备能力1505

5、燃料比kg/tHM5806富氧率%027入炉矿品位TFe%578熟料率%708070%烧结+30%块矿9送风温度110010炉顶压力MPa0.030.12常压0.03，高压0.1211渣铁比kg/tHM400.012高炉年工作日天35013高炉年产生铁万吨/年2836ItemNameUnitIndexRemarks1BF capacitym33002BF utilization ratiot/m3d2.65Max 3.23Coke ratiokg/tHM480.04Coal ratiokg/tHM120Equipment capacity1505Fuel ratiokg/tHM5806Oxyg

6、en-enrichment rate %027Grade of charging ore TFe%578Agglomeration rate%708070%sintering ore+30%lump ore9Hot blast temperature 110010Furnace top pressureMPa0.030.12Normal pressure0.03，low pressure0.1211Slag ratiokg/tHM400.012 Year operating days of BFdate35013Year pig production of BF104t/a28364.工程建设

7、的主要内容 Main contents of project construction炼铁系统包括矿槽及槽下筛分供料设施、料车及卷扬、炉顶装料设备、高炉本体、风口平台出铁场、热风炉、煤气粗除尘、煤气净化、渣处理系统、铸铁机、鼓风机站、出铁场和矿槽除尘等。Iron-making system include ore bunker, screen and supply equipment under bunker, skip car, skip hoist, furnace top charging equipment, BF proper, tuyere platform and cast ho

8、use, hot blast stove, gravity dedusting ,gas cleaning system, slag granulation system, pig casting machine ,blower station cast house and ore bunker de-dusting etc.4.1 矿槽及槽下筛分供料系统 Ore bunker, screen and supply equipment under bunker矿槽布置为单排布置，共设有10 个矿槽，其中2 个焦炭槽、4 个烧结矿槽、2 个球团矿(块矿)槽、一个熔剂槽和一个杂矿槽。采用分散筛分、

9、称量工艺。Ore bunker adopt Single-line arrangement ,there are 10 ore bunkers in total(2coke bunkers,4sinter ore bunkers 2 pellet (lump ore)bunkers,1 flux bunker,1 mixed ore bunker ).Separated screening and weighing process is adopted. 4.2 料车及卷扬 Skip car and hoist采用双料车斜桥上料，共用一套卷扬，料车有效容积为2.5m3，卷扬能力6t，交流变频传

10、动，电机功率132kW。The charging system uses double skip car for charging through skip bridge with one set of hoist. The effective volume of skip car is 2.5m3,hoists capacity is 6t,AC frequency conversion drive, the motor power is 132kW.4.3 炉顶装料设备 Furnace top charging system采用串罐无料钟炉顶，固定受料斗有效容积10m3，设计炉顶压力0.0

11、80.12MPa，正常炉顶温度150300，炉顶均压系统一次均压采用煤气，二次均压采用N2，均压阀采用液压驱动（与槽下合用液压站）。Bell-less top with serial hopper is adopted. Effective capacity of the receiving hopper is 10m3 furnace top pressure is 0.080.12MPa,the normal furnace top temperature 150300,the equalizing pressure system of furnace top uses gas for t

12、he first pressure equalization and uses nitrogen for the second pressure equalization, equalizing pressure valve is hydraulic pressure driven(sharing the same hydraulic pressure station under bunker)4.4 高炉本体 BF proper高炉容积为300m3，设12 个风口、1 个铁口，1个渣口。高炉采用自立式框架结构。高炉炉底及炉缸采用半石墨质炭砖、陶瓷杯综合砌筑，炉腹、炉腰和炉身中下部采用高铝砖、

13、炉身上部用致密粘土砖砌筑。炉底、炉缸区域采用光面冷却壁，炉腹、炉腰和炉身中下部采用球墨铸铁冷却壁。BF volume of the BF is 300m3, including 12 tyueres,1 taphole,1slag notch. The structure of the furnace body is self-standing frame structure. BF hearth and bottom is laid with semi-black lead char brick and masonry as ceramic cup type. The furnace bos

14、h, belly and the lower part of shaft is lined with intensified clay brick. The bottom and hearth adopt smooth side cooling stave, the furnace bosh, belly and the lower part of shaft adopt cooling stave made of spherical graphite cast iron.4.5 风口平台及出铁场 Tuyere platform and cast house 风口平台宽17m、长约15m、高6

15、.35m；出铁场长约30m。出铁场上设液压泥炮、液压开铁口机、铁沟、下渣沟和一台10t 单梁起重机。Tuyere platform is 17m wide,15m long and 6.35m high; the length of cast is 30m.Hydraulic pressure gunning mud, hydraulic pressure tapping machine, slag runner, iron runner and one 10t single beam crane are equipped in cast house.4.6 热风炉系统 Hot blast s

16、toves system高炉配置三座内燃式热风炉，设置热管换热器利用烟气余热预热助燃空气，助燃空气集中送风，阀门采用液压传动。每座热风炉格子砖体积187.5m3，单位炉容加热面积95m2/m3，热风炉设计风温1100。Three internal combustion hot blast stoves are setup for BF, the heat pipe exchanger is also utilized by using excess heat of fume to preheat the combustion air. Combustion air is supplied in

17、tensively, valves is hydraulic pressure driven. Checker bricks capacity of each hot blast stove is 187.5 m3,heat storage area of unit BF volume is 95m2/m3,the air temperature of hot blast stove is designed at 1100.4.7 炉渣处理设施 Slag granulation system渣处理采用底滤的方式，该设施由冲渣水沟、冲渣水池、冲渣水泵房等组成。渣铁比400kg/tFe，渣水比1：

18、8，冲渣水压力0.20.3MPa，冲渣水采用开路循环，设置一套水循环系统。Bottom filtration method is adopted for slag granulation. The system includes water slag granulation runner, water slag granulation pit, water slag granulation pump house etc. Slag iron is 400kg/tFe,slag water ratio is 1:8,water slag granulation pressure is 0.20.

19、3MPa.Opern-circulation is adopted for slag water and one set of water circulation system is provided.4.8 煤气净化设施 Gas cleaning facilities高炉煤气经导出管、上升管、下降管进入重力除尘器进行粗除尘，然后进入干式布袋除尘进行精除尘。净化后的高炉煤气粉尘含量10mg/Nm3。BF gas goes through leading-out pipes, rising pipes and downcomer and goes into the gravity deduste

20、r for crude dedusting, then dry type bag deduster for extractive dedusting. Dust content of the cleaned gas is 10mg/Nm3.4.9 铸铁机及烤罐间 Pig casting machine and ladle baking shop铸铁机厂房建于出铁场一侧。厂房内设有一台铸铁机的机头、修罐、烤包的位置，并设有一台Q=50/10t 的桥式吊钩起重机，用于铁水的吊运、倾翻以及铁水罐的修理。铸铁机选用50m双链带滚轮固定式铸铁机，最大生产能力为1200t/d。Pig casting wo

21、rkshop will be set up on one side of cast house. The loading end of pig casting machines ,ladle repair and baking area are arranged in workshop. One Q=50/10t overhead crane is also provided for lifting, transportation of hot metal, tilting and ladle repairing. 50m fixed type double chain roller cast

22、ing machine is utilized, its max. Production capacity is 1200t/d.4.10 高炉鼓风系统 BF blowing system根据高炉冶炼对风机选型的要求：介质：空气；进气流量1000m3/min，进气压力（绝对）0.098MPa，出口压力0.32MPa，设计选用二台D1000-320/98 电动离心鼓风机，电机功率3200kW，电机电压11kV，一运一备。According to the requirement for selection of BF blower: the medium: air; inlet air flow

23、1000m3/min，inlet pressure(absolutely) 0.098MPa,outlet pressure 0.32MPa,It is designed to select two electric centrifugal blower, motor power is 3200kW,motor voltage is 11kV,one operating and one stand by4.11 高炉喷煤系统 BF PCI system采用干煤棚、立式中速磨煤机，喷吹系统采用并联罐喷吹、底部流化上出料、总管加分配器直接喷吹工艺流程， 高炉设计喷吹120Kg/t铁，最大喷吹量按照

24、150Kg/t铁计算。Dry coal shed is used, vertical medium speed pulverizer, PCI system adopts parallel injection hopper; bottom fluidization to charge the material, the pipe main with distributor to inject directly. BF is designed to inject 120Kg/t Fe, the max. quantity for the injuction is calculated as 15

25、0Kg/t Fe.5 原燃料的供应 Raw material and fuel supply原燃料的供应采用火车和汽车运进的方式。烧结供料由装载机从料场送至配料仓，成品烧结矿由胶带机送入高炉矿槽；其它原燃料由装载机或汽车直接运至半地下受料槽，经胶带机、筛分间、卸料小车将原、燃料送入高炉矿槽。Raw material and fuel will be transported by train and trucks. The supply of sinter is transported from stock yard to distribution bin by shovel loader, t

26、he finished sinter ore is charged to BF ore bunker by belt conveyor; the other raw material is transported to partially-exposed hopper directly by shovel loader or trucks, then transport raw material to BF ore bunker by belt conveyor, screen room and discharging car.主要原燃料消耗（单位：t/a） Main consumption

27、of fuel and raw material (unit: t/a)矿粉： 40104 ore fines: 40104块矿： 16.15104 lump ore: 16.15104 焦炭： 14.40104 coke: 14.40104石灰石： 0.52104 lime stone: 0.52104 白云石： 6.28104 dolomite: 6.28104生石灰： 1.57104 calcium oxide:1.57104煤粉： 3.75104 coke fines: 3.751046 公辅设施 Auxiliary Facilities6.1 电力设施 Electric facili

28、ties6.1.1 电力负荷 Electrical load采用两路11kV 电源供电，电源取自厂区总降。电力负荷统计见下表： 11kV power supply is adopted and the power is originally from the main reduction of the factory.Details are shown in the following load statistics chart负荷统计表 load statistics名称安装功率（kW）工作功率（kW）无功功率（kVar）视在功率（kVA）炼铁车间12249 7748 2351 6000De

29、scriptionInstallation power（kW）Operatingpower（kW）Reactivepower（kVar）Apparentpower（kVA）Iron-making plant12249 7748 2351 60006.1.2 供配电电压等级 Power supply and distribution voltage grade高压用电设备11kV High voltage equipment 11kV低压用电设备415/220V Low voltage equipment 415/220V工作照明电压220V Operating lighting voltage

30、 220V检修电源电压24V Examining and repairing voltage 24V6.1.3 供配电设施 Power supply and distribution voltage facilities 与烧结、炼铁、料场共设一个11kV 高压开关站，高炉鼓风机站内设一个高压配电室，电源引自11kV 开关站（业主）。Sinter,iron-making and stock yard share one 11kV high voltage switch station. One high voltage distribution building for BF blower s

31、tation, the power supply comes from 11kV switching station(owner). 炼铁变电所：内设两台1250kVA、11/0.4kV/0.23kV 电力变压器。为净环水泵站、铸铁机、高炉本体、热风炉、布袋除尘、槽下及卷扬上料系统等低压用负荷供电。Iron-making electrical power substation:one 1250kVA and one 11/0.4kV/0.23kV electrical transformer are used. Provide low voltage power for clean circulation water pump station, pig casting machine, Bf