回转窑筒体的椭圆度

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1、OvalityofKilnOvalityofKilnshell回转窑筒体的椭圆度Content目录1.DefinitionofOvality椭圆度的定义2.Whywepaysomuchattentiontotheovalityofkilnshell为什么我们要如此关注窑筒体椭圆度3.MeasuringOvalitywiththeOvalityTesterMeasuringOvalitywiththeOvalityTester使用椭圆度测量仪测量椭圆度4.TyreMigrationandGap轮带滑移及轮带间隙5.Howmuchtyregapissuitableforourkiln?

2、我们回转窑的轮带间隙是多少才合适?6.Somethingneedtomention需要说明的一些事情7.Casestudy案例研究2281.DefinitionofOvality椭圆度的定义DefinitionofOvality椭圆度的定义Twicethedifferencebetweenmaximumandminimumkilnshellradiusduringonerevolution回转窑转动一周期间，窑筒体最大半径和最小半径之差乘以2baRelativeovality相对椭圆度Absoluteovality绝对椭圆度ω=100ω/d(()%)ω==2(a2(a-b)(mm)

3、ridi=innerdiameterofkilnshell(mm)328di=窑筒体内径(mm)2.Whywepaysomuchattentiontotheovalityofkilnshell为什么我们要如此关注窑筒体椭圆度RefractorylifetimeissignificantlyinfluencedUpperlimit上限bythemechanicalconditionofkilnshell,i.e.0.8(Overduetyregapandconsequentialbygycontinuousdeformationduringopperation.wearofrefra

4、ctory)窑筒体的机械状态对耐火砖衬的寿命影响很大(轮带间隙过大,随即耐火砖衬损坏),即窑筒体在运转过程中不断的变形会影响耐0.6(%)火砖衬的使用寿命。0.45度椭圆0.4Basedonempiricalderivedguidelinesthe0.35acceptablelimitofovalityinpercentshouldLowerlimit下限Ovalitynotexceedthetenthpartofthekilndiameter0.2(riskofconstrictionofkilnshellandinmeters(e.g.diam:5,0m0,50%).dama

5、geofrefractorylining)(有窑筒体被抱死和损坏耐火砖衬的风险)基于经验得来的指南，0.0容许的椭圆度限值不应超过以米计的窑直径的2344550567十分之一百分比(如直径5.0m0,50%).kilndiameterinmeters窑直径(m)acceptablerange可接受的范围4282.1.Otherwise–theresultofneglecting(1)不然的话-疏忽产生的结果(1)TitTwistandhdcrusheddofbikfbrickworki2ksin2ndtftyreareaafttteronemonthh新砖衬砌一个月后，2＃轮带区

6、域因椭圆度过大造成的火砖扭曲和碎裂5282.2.Otherwise–theresultofneglecting(2)不然的话-疏忽产生的结果(2)ExaggeratedgapundertyreEvencandamageoutletcastable,canyouHowlargeareatheovalitycansaythecastablehasqualityproblem?1stinfluenced.夸张的轮带下间隙Tyrelocatedin6mfromoutlet椭圆度过大影响的范围可真不小甚至会损坏窑口浇筑料，这里能讲浇筑料有质628量问题吗？1挡轮带位于距窑口6m处3.Meas

7、uringOvalitywiththeOvalityTester(1)使用椭圆度测量仪测量椭圆度(()1)(1)Markthemeasuringpointsonkilnshellonbothsideoftyre(2).Thetemperatureofkilnshell(1)在轮带两侧窑筒体上标出测量点andtyrecreepoftyreandtyre,creepoftyre.Onecircledividedby120º装配好的椭圆度测量仪圆弧120º等分(2).测量相