为提高水泥运输效率,减少袋装水泥造成的资源浪费,目前大部分水泥采用小型散装搅拌车运输,因为小型搅拌车采用气力输送和卸料,卸料速度和卸料剩余率是评价袋装水泥运输效率的重要指标水泥罐车卸料效率。采用正确的方法,保证小型搅拌机罐内水泥尽可能的排出,是非常重要的。由于在卸料过程中肉眼无法直接看到罐内水泥,必须采用一些方法来识别水泥的卸料情况。以下是一些确定水泥是否已卸下的简单方法: Inordertoimprovetheefficiencyofcementtransportationandreducethewasteofresourcescausedbybaggedcement,mostofthecementistransportedbysmallbulkmixersatpresent,becausethesmallmixersusepneumaticconveyingandunloading,andtheunloadingspeedandunloadingresidualrateareimportantindicatorsforevaluatingtheefficiencyofbaggedcementtransportation.Itisveryimportanttousethecorrectmethodtoensurethatthecementinthesmallmixertankisdischargedasmuchaspossible.Becausethecementinthetankcannotbeseendirectlybythenakedeyeintheunloadingprocess,somemethodsmustbeusedtoidentifytheunloadingofcement.Herearesomesimplewaystodetermineifthecementhasbeenremoved:
压力表检查方法:中科聚峰搅拌机卸料时,罐内气压为1.8-2.4kg/cm~2,卸料完毕,气压迅速下降。如果压力表降0-0.2kg/cm~2,说明罐内水泥基本卸出。
Inspectionmethodofpressuregauge:duringunloadingofZhongkeJufengmixer,theairpressureinthetankis1.8-2.4kg/cm2.Afterunloading,theairpressuredropsrapidly.Ifthepressuregaugedropsto0-0.2kg/cm2,thecementinthetankisbasicallydischarged.
根据卸料时间的判断方法,普通水泥罐的卸料速度一般为1-1.2吨/分钟。如果水泥的装载重量是32吨,通常需要半小时才能卸下。因此,卸货时间可根据卸货吨位计算。这样,接线员在前25分钟就相对容易了。不用长时间盯着压力表,也不用用其他方法检查卸料是否完成。
Accordingtothejudgmentmethodofunloadingtime,theunloadingspeedofordinarycementtankisgenerally1-1.2t/min.Iftheloadingweightofcementis32tons,itusuallytakeshalfanhourtounload.Therefore,theunloadingtimecanbecalculatedaccordingtotheunloadingtonnage.Inthisway,theoperatorisrelativelyeasyinthefirst25minutes.Donotstareatthepressuregaugeforalongtime,anddonotuseothermethodstocheckwhethertheunloadingiscompleted.
空压机声音识别方法:空压机在正常卸荷时间和空间内负荷较大,空压机在运行过程中产生的声音比较沉闷。卸罐结束时,空压机负荷变小,工作声音清脆。
Aircompressorsoundrecognitionmethod:theaircompressorhasalargeloadinthenormalunloadingtimeandspace,andthesoundproducedbytheaircompressorintheoperationprocessisrelativelydull.Attheendofunloading,theloadofaircompressorbecomessmallerandtheworkingsoundisclear.
在卸水泥过程中,可以用手敲打水泥罐。如果声音中没有回声,则证明罐内有大量水泥剩余,需要卸载一段时间;如果罐内有回声,则证明罐内水泥几乎排出。 Intheprocessofunloadingcement,thecementtankcanbeknockedbyhand.Ifthereisnoechointhesound,itisprovedthatthereisalargeamountofcementleftinthetank,whichneedstobeunloadedforaperiodoftime;ifthereisechointhetank,itisprovedthatthecementinthetankisalmostdischarged.
卸料胶管观察方法:正常卸料时,卸料胶管受到流态化水泥的冲击,胶管不断晃动。如果软管不晃动,也可以证明罐内水泥基本排出。 Observationmethodofunloadingrubberhose:duringnormalunloading,theunloadingrubberhoseisimpactedbyfluidizedcement,andtherubberhosecontinuouslyshakes.Ifthehosedoesnotshake,itcanalsoprovethatthecementinthetankisbasicallydischarged.
根据水泥接收塔顶扬灰的识别方法,正常卸料时,水泥耗气量相对较小,“多料少气”,接收塔顶扬灰较少,卸料后期“少料多气”,更多的提升灰在接收塔的顶部。
Accordingtotheidentificationmethodofliftingashonthetopofthecementreceivingtower,duringnormalunloading,theairconsumptionofcementisrelativelysmall,"morematerialandlessgas",lessliftingashonthetopofthereceivingtower,and"lessmaterialandmoregas"atthelaterstageofunloading,moreliftingashisonthetopofthereceivingtower.
上述方法中的一种或两种可用于简单地确定小型搅拌机的水泥是否已卸下。由于不同的结构、不同的空压机、不同的水泥接收塔高度、不同的水泥装车比例,卸料速度和剩余率会有所不同。司机可记录实际操作方法和卸料时间,并不断总结经验检查,获得操作方法,达到卸料效率。
Oneorbothoftheabovemethodscanbeusedtosimplydeterminewhetherthecementofasmallmixerhasbeendischarged.Becauseofdifferentstructure,differentaircompressor,differentheightofcementreceivingtoweranddifferentloadingproportionofcement,theunloadingspeedandresidualratewillbedifferent.Thedrivercanrecordtheactualoperationmethodandunloadingtime,andconstantlysummarizetheexperienceandchecktoobtaintheoperationmethodandachievetheunloadingefficiency.