回轉(zhuǎn)窯筒體的橢圓度

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1、OvalityofKilnOvalityofKilnshell回轉(zhuǎn)窯筒體的橢圓度Content目錄1.DefinitionofOvality橢圓度的定義2.Whywepaysomuchattentiontotheovalityofkilnshell為什么我們要如此關(guān)注窯筒體橢圓度3.MeasuringOvalitywiththeOvalityTesterMeasuringOvalitywiththeOvalityTester使用橢圓度測量儀測量橢圓度4.TyreMigrationandGap輪帶滑移及輪帶間隙5.Howmuchtyregapissuitableforourkiln?

2、我們回轉(zhuǎn)窯的輪帶間隙是多少才合適?6.Somethingneedtomention需要說明的一些事情7.Casestudy案例研究2281.DefinitionofOvality橢圓度的定義DefinitionofOvality橢圓度的定義Twicethedifferencebetweenmaximumandminimumkilnshellradiusduringonerevolution回轉(zhuǎn)窯轉(zhuǎn)動一周期間，窯筒體最大半徑和最小半徑之差乘以2baRelativeovality相對橢圓度Absoluteovality絕對橢圓度ω=100ω/d(()%)ω==2(a2(a-b)(mm)

3、ridi=innerdiameterofkilnshell(mm)328di=窯筒體內(nèi)徑(mm)2.Whywepaysomuchattentiontotheovalityofkilnshell為什么我們要如此關(guān)注窯筒體橢圓度RefractorylifetimeissignificantlyinfluencedUpperlimit上限bythemechanicalconditionofkilnshell,i.e.0.8(Overduetyregapandconsequentialbygycontinuousdeformationduringopperation.wearofrefra

4、ctory)窯筒體的機(jī)械狀態(tài)對耐火磚襯的壽命影響很大(輪帶間隙過大,隨即耐火磚襯損壞),即窯筒體在運(yùn)轉(zhuǎn)過程中不斷的變形會影響耐0.6(%)火磚襯的使用壽命。0.45度橢圓0.4Basedonempiricalderivedguidelinesthe0.35acceptablelimitofovalityinpercentshouldLowerlimit下限Ovalitynotexceedthetenthpartofthekilndiameter0.2(riskofconstrictionofkilnshellandinmeters(e.g.diam:5,0m?0,50%).dama

5、geofrefractorylining)(有窯筒體被抱死和損壞耐火磚襯的風(fēng)險)基于經(jīng)驗(yàn)得來的指南，0.0容許的橢圓度限值不應(yīng)超過以米計的窯直徑的2344550567十分之一百分比(如直徑5.0m?0,50%).kilndiameterinmeters窯直徑(m)acceptablerange可接受的范圍4282.1.Otherwise–theresultofneglecting(1)不然的話-疏忽產(chǎn)生的結(jié)果(1)TitTwistandhdcrusheddofbikfbrickworki2ksin2ndtftyreareaafttteronemonthh新磚襯砌一個月后，2＃輪帶區(qū)

6、域因橢圓度過大造成的火磚扭曲和碎裂5282.2.Otherwise–theresultofneglecting(2)不然的話-疏忽產(chǎn)生的結(jié)果(2)ExaggeratedgapundertyreEvencandamageoutletcastable,canyouHowlargeareatheovalitycansaythecastablehasqualityproblem?1stinfluenced.夸張的輪帶下間隙Tyrelocatedin6mfromoutlet橢圓度過大影響的范圍可真不小甚至?xí)p壞窯口澆筑料，這里能講澆筑料有質(zhì)628量問題嗎？1擋輪帶位于距窯口6m處3.Meas

7、uringOvalitywiththeOvalityTester(1)使用橢圓度測量儀測量橢圓度(()1)(1)Markthemeasuringpointsonkilnshellonbothsideoftyre(2).Thetemperatureofkilnshell(1)在輪帶兩側(cè)窯筒體上標(biāo)出測量點(diǎn)andtyrecreepoftyreandtyre,creepoftyre.Onecircledividedby120o裝配好的橢圓度測量儀圓弧120o等分(2).測量相