1、新型高效旋流沉砂池NewandHigh-EfficientRotationalFlowDesiltingTank一、概述SummaryBXJS系列除砂機(jī)是本公司在廣泛深入研究目前國(guó)內(nèi)外各種形式的沉砂池除砂機(jī)的基礎(chǔ)上，經(jīng)優(yōu)化設(shè)計(jì)而開(kāi)發(fā)出的第二代沉砂池除砂設(shè)備。這種新型的組合式沉砂池除砂設(shè)備，沉砂效果好，除砂可靠，砂水分離效率高，整個(gè)系統(tǒng)采用PLC自動(dòng)控制，管理方便。TheBXJSseriesgritcatcherisdevelopedbasedonourresearchandimprovementofsimilardomesticandforeignequipment.Itisoursecond

2、generationgritremovalequipment.Thecombinationaldesignisveryeffective,reliableandefficient.ThesystemutilizesPLCautomaticcontrol,whichmakesitveryeasytooperateandmaintain.BXJS二XIOOO水處理量m3/dThroughputCapacity沉砂池型號(hào)DesiltingTankType二、工作原理OperatingPrinciple污水沿切線方向進(jìn)入沉砂池，在旋轉(zhuǎn)的攪拌槳作用下，固體砂粒受離心力、重力、浮力及流體阻力共同作用，開(kāi)始

3、沉降。旋流中粒度、密度大的砂?？拷乇诤统氐?，最后沉落到池中心的砂坑內(nèi)。同時(shí)，由于攪拌槳的適中旋轉(zhuǎn)，在沉砂池的中心產(chǎn)生一個(gè)輕微向上的速度（不影響外圈砂粒的沉降和池邊向下的水流方向）使較輕、較小的物體在池中心部上升，最后隨出水一起排出。攪拌槳產(chǎn)生的離心力則把已沉降的較重砂粒推入池子下部的沉降段。Oncethewaterentersthegrit-settlingtank,undertheactionofthestirringrakeandtheeffectsofcentrifugalforce,gravity,buoyancyforceandflowresistance,thegritbegin

4、stosettle.Largeandheavygritflowstothesidewallandbottomofthetankandeventuallyfallstothegritpitatthecenterofthetank.Theactionofthestirringrakealsocreatesasmallupwardflowatthecenterofthetank,whichliftssmallandlightparticlesthateventuallygetsdischargedwiththewater.Theupwardflowwillnotinterfereinthedownw

5、ardmovementofthegritintheouterregionofthetank.三、結(jié)構(gòu)及特點(diǎn)ConstructionandCharacteristics新型高效旋流沉砂池成套設(shè)備供貨包括：電機(jī)，減速機(jī)，風(fēng)機(jī)，漿片驅(qū)動(dòng)管，漿片，提砂系統(tǒng)，砂水分離器，其他輔助設(shè)備等，見(jiàn)圖1。ThesuppliesofthecompletesetsoftheNewandHigh-EfficientRotationalFlowDesiltingTankconsistofmotor,reducer,blower,bladedrivenshaft,blade,gritliftingsystem,grit-w

6、aterseparatorandotherauxiliaryequipments,etc.Figure1.GritCatcherr+|Q|i軌3EhawhSolcncidVlnAirInspfatorjiTuhfMletuidErfiauil-Tdbt廨$kifTJie|WK豁|丄h旳問(wèn)AirTubeAirScourSdlmoidValve*yW45)f2.5AthspiratryRoetjBlowerl*ww_y/EiihaustHufflerIhrottlet*f159x3DrainTu誕&卄番Epanal雪/SystemControlCatintt于Outdnortainlegs業(yè)豈Mt

7、f1Q8K4RohtorDe*i|+ingtankFigure1GritCatcherr+|Q|i軌3EhawhSolcncidVlnAirInspfatorjiTuhfMletuidErfiauil-Tdbt廨$kifTJie|WK豁|丄h旳問(wèn)AirTubeAirScourSdlmoidValve*yW45)f2.5AthspiratryRoetjBlowerl*ww_y/EiihaustHufflerIhrottlet*f159x3DrainTu誕&卄番Epanal雪/SystemControlCatintt于Outdnortainlegs業(yè)豈Mtf1Q8K4RohtorDe*i|+ing

8、tankFigure12.進(jìn)水擋板3.出水過(guò)水堰圖1新型高效旋流沉砂池配置CompositionofNewandHigh-EfficientRotationalFlowDesiltingTank1.池體4.電機(jī)5.減速機(jī)6.螺旋槳驅(qū)動(dòng)管7.螺旋槳8.集砂斗鋼蓋板9.氣提頭10.提砂管11.氣提管12.氣沖管1.Tank5.Reducer9.InspiratoryTubeEnd10.2.InletBaffle6.Propeller-drivenTube7.Propeller8.SteelCoverofGritBucketGrit-liftTube11.AirInspiratoryTube12.A

9、irScourTube3.WaterWeirforOutletWater4.Motor圖2沉砂池構(gòu)造示意圖Figure2AdvancedGritRemovalSystemStructureDiagram新型高效旋流沉砂池系統(tǒng)可達(dá)到如下除砂效率：大于50篩目的砂粒去除率為95%。50篩目和70篩目之間的砂粒去除率為85%。70篩目和100篩目之間的砂粒去除率為65%。TheNewandHigh-EfficientRotationalFlowDesiltingTankhasthefollowinggrid-catcherefficiency:Grid-catcherrategreaterthan5

10、0meshsieveis95%.Grid-catcherratebetween50and70meshsieveis85%.Grid-catcherratebetween70and100meshsieveis65%.獨(dú)特的水力設(shè)計(jì)：與目前國(guó)內(nèi)旋流沉砂池普遍采用的270進(jìn)出水方式相比，本沉砂池采用360直進(jìn)直出的方式，來(lái)水通過(guò)一個(gè)斜坡切向進(jìn)水，在導(dǎo)流板和壓水板的作用下，水流在沉砂池內(nèi)完整地形成360旋流，不會(huì)發(fā)生斷流。因而其水力條件更為改善。Uniquehydraulicdesign:Comparedwiththecurrentgeneralwayof270inletandoutletwaterb

11、ythedomesticrotationalflowdesiltingtank,thistanktakesthemethodof360straightinandout.Theinletwaterflowstotheoutletwaterthroughaslopeandtheflowformsacomplete360rotationalflowinthedesiltingtankundertheeffectofdeflectorplateandwaterpressurizingplatesothatthewaterdoesntcutoff.Thereforeitshydraulicconditi

12、oncanbebetterimproved.可靠的提砂方式：系統(tǒng)采用氣提這一簡(jiǎn)單可靠的排砂方式，依靠氣水混合液與水之間的比重差將砂粒排出。雖然氣提的方式和砂泵提砂相比在提升高度上受到限制，但這一限制在實(shí)際應(yīng)用并無(wú)什么不利影響。而其具有的一個(gè)優(yōu)點(diǎn)是在氣提之前可以實(shí)現(xiàn)砂粒的氣洗，可防止集砂斗內(nèi)的砂粒板結(jié)，同時(shí)還可將附著在砂粒上的有機(jī)物選出，從而方便砂粒排出后的后續(xù)處理。Reliablewayofgritlifting:Simpleandreliable,thesystemtakesthemethodofair-lifttoremovethegrit,takingadvantageoftheprop

13、ortiondifferencebetweenair-watermixtureandwater.Theheightliftedbyairislimitedcomparedwithgritliftingbysandpump,butthislimitdoesnothaveanynegativeeffectsinpracticaloperation.Thegritcanbeair-scouredbeforeair-lift,whichcanpreventthegrithardeningingritbucketandpickouttheorganicsadheredtothegrit,simplify

14、ingthefollowingtreatmentaftergritremoval.有機(jī)物分離：新型高效旋流沉砂池獨(dú)特的水力和攪拌漿片設(shè)計(jì)，不但可以高效地去除砂粒，同時(shí)可以高效地將有機(jī)物從砂粒中分離出來(lái)，這是目前市場(chǎng)上流行的鐘式沉砂池所無(wú)法達(dá)到的。Separationoforganiccompounds:TheuniquehydraulicandstirringbladedesignoftheNewandHigh-EfficientRotationalFlowDesiltingTankcannotonlyremovethegrit,butalsoseparateorganicsoutofgrit

15、high-efficiently,whichisimpossibleforthepopularbell-typedesiltingtankinthecurrentmarket.四、規(guī)格及技術(shù)參數(shù)SpecificationsandTechnicalParameters設(shè)計(jì)流量沉砂池直徑沉砂池深度砂斗直徑砂斗深度1型號(hào)(萬(wàn)m3/d)GritChamberGritChamberGritbucketGritBucketModelDesignflowDiameterDepthdiameterDepth(lOOOOrWd)(m)（m）（m）(m)BXJS3.80.381.831.120.911.52BXJS9.50.911.52BXJS15.21.522.441.220.911.52BXJS26.52.653.051.451.521.68BXJS45.54.553.661.521.522.03-a-i-BXJS75.87.584.881.681.522.08iiiiihiBXJS11411.45.491.981.522.13BXJS18931.522.44BXJS26526.57.322.131.832.4