演示资料.doc

L. V. Technology Public Company Limited总经理：Hans Jorgen NielsenTel : +66 2 7170835-40 ext. 212Fax : +66 2 7170841公司地址：L. V. Technology Public Company Limited719 KPN Tower,9th Floor (Zone C&D)Rama IX RoadBangkapi, HuaykwangBangkok 10310, Thailand1L.V.工程技术（天津）有限公司总经理：付君武 先生Tel: +86 22 26836667FAX: +86 22 86819160E-mail:副总经理：谢克平 先生Tel: +86 22 26953310FAX: +86 22 26958383E-mail:Lvt_公司地址：天津市北辰区双发大厦28门702室2Product Summary本公司服务内容Modification of Vertical Roller mills- LV Classifier立磨选粉机LV技术的改造Modification of Ball Mills- LV Classifier + Fluidized Bed球磨机LV选粉机与流态化床技术改造Modification of cyclones- LV Cyclone- Increase of inlet area旋风筒的改造：LV旋风筒并增加入口面积Total kiln upgrades and NOx reduction-Calciner modifications窑的升级与降低NOX_Vertical Mill Installations- Mitsubishi VRM with LV Classifier立磨安装-使用LV选粉机的Plant evaluations and consultancy工厂评价与咨询3LV ClassifierLV选粉机The concept of the separator is to improve the gas and material flow invertical mills by:改进立磨选粉机气流与物流靠： Unique design of guide vanes - LV pocket 独特的LV气室导向叶片设计 Unique design of rotor The design of the grit funnel独特的转子设计粗料漏斗重新设计The concept is based on the idea:上述概念的基础思想：Allow more material to be directed to the classifier by optimising the gasspeed .通过优化气流速度让更多的物料直接进入选粉机。Avoid fines returning to the grinding table and excessive internal materialcirculation in the mill body by installation of the LV Pocket.LV气室能避免细粉返回磨盘，减少磨内物料循环。Decreases the pressure loss in the mill body and separator. An effect ofthe reduction of internal material circulation.减少磨内及选粉机压损，减少物料内部循环的影响。5Forces Involved In LV-ClassifierLV选粉机所涉及的力Draft force风的拉力Centrifugal force离心力Gravity force重力7Guide vanes and Rotor导向阀片和转子ROTATIONGuide VaneLV PocketROTOR8LV Pocket Vane ArrangementLV气室布置及原理9LV-Classifier Material FlowLV选粉机料流11Benefits of LV ClassifierLV选粉机的受益High efficiency in any good classifier means任何优秀选粉机的高效意味着细粉中没有粗粉NO COARSE IN FINESIn the LV Classifier our aims also is to have在LV选粉机中我们的目的还要做到在粗粉中没有细粉NO FINES IN COARSE13Benefits of LV ClassifierLV选粉机的受益Vertical Roller Mills:对于立磨:Increased production12 - 30 %产量增加Saving in power consumption 1.5 5.0 kWh/tof both mill and fan风机与磨机电耗节约Vibration level decreasing振动等级降低Improving size distribution ofraw meal改善生料颗粒级配14Before and After Modification改造前后的对比M O D IF IC A T IO N B Y LVE X IS T IN G15IHI VRM Result改造效果18分项Before LV改造前AfterLV改造后%Guarantee保证值Production产量280 TPH360 TPH+ 29 %(325 TPH)Residue 90micron90筛余12 %10%-17%(10 %)Specific Power Mill & Fan磨机与风机单位能耗14.8kWh/t-24%(12.5 kWh/t)Vibration振动60-80micron20-30micron- 2/3-Control of Raw meal fineness改造前后生料细度的控制对比19Reduction in Kiln Heat Consumption改造后窑的热耗降低20Free Lime before and after Modification改造前后熟料游离钙的对比21Plant Power Consumption工厂能耗改造后的变化22Detailed Power Consumption能耗组成分解23Operating Data For LM Mills耒歇尔立磨改造后运行数据对比24L M 6 3 .4M illF u lle r L M 5 0 .4C la s s ifie rP ro d u c tio n M TPHM ill p o w e r KW hFan pow er KW h P m ill MmwgV ib ra tio n M m /.sR e s id u e % 90 % 200 S p e c . e n e rg yM ill + F a n k W h /M TB e fo re A fte rLJK S LVT300 3003100 31003200 1900800 7508 -1 0 3 -518 151 .5 1 .52 1 .0 1 6 .7B e fo re A fte rLSKS LVT617 7094875 49606355 5175850 7508 -1 0 5 -712 121 8 .2 1 4 .3S a v in g sIn c re a s e dP ro d u c tio nk W h /M T%4 .3- 03 .9- 15Operating Data - POLYSIUS Mill玻力休斯立磨运行数据对比P o ly s iu s 5 1 - 2 6B e fo reA fte rC a p a c ityR e s id u eM ill P o w e rFan Pow erE x it G r a in lo a dM ill PE x te r n a l R e c ir .Spec. Pw r Cons.P o w e r S a v in g sIn c r e a s e dM TPH% 90 % 200 kW hkW hg m /m 3mmwgP e rc e n tk W h /M Tk W h /M T%225165 .024702150360735452 0 .5275224 .026001800510720301 6 .04 .522P r o d u c tio n25Modification of Raw mill 生料磨改造效果对比MPS 3750 Raw MillBeforeAfterClassifierSLSLVTProduction (t/h)180209Mill (kW)13181063Fan (kW)15031717DP, mill (mbar)-Residue (90 m )11.511.9Residue (212 m )-Mill (kWh/ts)7.325.1Fan (kWh/ts)8.358.2Air Flow (m3/hr)-Vibration-Spec. energy Mill and fan-External Circulation (tph)-Increased Production (%)16%Energy Saving (kWh/ts)2.4 kwh/t 27生料立磨改造效果对比Atox 40 Raw MillBeforeAfterClassifierRARLVTProduction (t/h)265290Mill (kW)23502223Fan (kW)19001854DP, mill (mbar)5048Residue (90 m )10.2713.40Residue (212 m )-Mill (kWh/ts)8.97.7Fan (kWh/ts)7.26.4Air Flow (m3/hr)-Vibration-Spec. energy Mill and fan-External Circulation (tph)-Increased Production (%)9.4Energy Saving (kWh/ts)2.0 28Vertical Mill Summary立磨总结LOWER MILL EXIT GAS VOLUME较低的磨机排风量 REDUCED MILL PRESSURE DROP 减少磨机压降 REDUCED FAN kWBETTER PRODUCT PSD BETTER BURNABILITY BETTER CLINKER QUALITY INCREASED PRODUCTION减少风机功率更高的产量易烧性更好更好的熟料质量增加产量INCREASED GRINDING EFFICIENCY 提高粉磨效率 HIGHER PRODUCTION LOWER VIBRATION较高的产量较低的振动29第二部分水泥管磨的选粉机LV技术改造30用LV选粉机更换原选粉机方案闭路粉磨系统加辊压机后的混合粉磨系统32新建磨机系统选用LV技术出磨物料不选用提升机的优点：1、降低厂房高度；2、节省设备及基建投资；3、降低运行成本；33不改造原选粉机使用LV技术特点：1、改造费用小；2、不用停产；3、现场需要小的空间。34LV-Classifier, 1 inlet单入口LV选粉机35LV-Classifier, 2 inlets双入口LV选粉机36LV-classifier, 2 inlets (2nd generation)第二代双入口LV选粉机37Cement Mill Up-grade水泥磨系统升级38Cement Mill Modification水泥磨系统改造39Operating Data Vertical Cement Mill水泥立磨运行数据VR-7, Cement millSeparatorProduction t/hBlaine cm2/gSpecific powerconsumptionBeforeMHI104.43325AfterLVT119.53406MillkWh/t20.6920.81ID Fan kWh/t7.545.98TotalIncreasedproductionPowersavingskWh/t%kWh/t28.2326.7914.51.7440Cement Mill Installation采用LV选粉机的水泥磨系统布置41Cement Strenght水泥强度Bending抗折强度1081086420LVLKS6420LVLKS72891728DaysCement Slag ratio: 1:1Days42Bending, N/mm2Bending, N/mm2Cement Strenght水泥强度Compression抗压强度1081086420LVLKS6420LVLKS72891728DaysCement Slag ratio: 1:1Days43Compression, N/mm2Compression, N/mm2第三部分旋风筒LV技术改造44LVC旋风筒结构结构特点：1、顶部为螺旋形；2、入口面积增大；3、与柱体部分的倒锥形连接。45LVC外形结构46窑一级预热器用LVC旋风筒技术47Different Cyclone Simulation Results三种不同的旋