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1、中國科技核心期刊全濟(jì)三選煤廠粗煤泥截粗試驗(yàn)柴琳琳,郭賓賓,邢叢叢(兗州煤業(yè)股份有限公司濟(jì)三煤礦選煤廠,山東濟(jì)寧272069)摘要:通過分析濟(jì)三選煤廠煤泥水系統(tǒng)工藝流程,說明煤泥水桶溢流量大,超粒度物料進(jìn)入壓濾循環(huán)系統(tǒng),離心液中大量末精煤經(jīng)篩網(wǎng)離心機(jī)處理后直接變成煤泥混入中煤,+0.1753mm物料進(jìn)入煤泥水系統(tǒng)后成為產(chǎn)品煤泥,損失了精煤等原因造成了選煤廠煤泥水系統(tǒng)跑粗,提出了解決系統(tǒng)跑粗問題的關(guān)鍵在于控制煤泥水桶溢流、斗子撈坑的入料粒度及旋流器溢流。通過在煤泥水桶四周建溢流堰,增加傾斜角度的篩板,建集
2、料桶,安裝煤泥振動(dòng)篩和弧形篩,將進(jìn)入撈坑的所有水全部打至煤泥水桶等措施對粗煤泥回收系統(tǒng)進(jìn)行了工藝改造。最后對選煤廠改造效果進(jìn)行了分析,結(jié)果表明:選煤廠改造完成后,減少了粗顆粒進(jìn)入壓濾系統(tǒng),減輕了煤泥水系統(tǒng)壓力,提高了精煤產(chǎn)率,降低了設(shè)備事故率,每年可回收末精煤3652.11t,創(chuàng)造效益189.91萬元。關(guān)鍵詞:粗煤泥;煤泥水;壓濾系統(tǒng);精煤產(chǎn)率;管道流量中圖分類號:TD946文獻(xiàn)標(biāo)識碼:A文章編號:1006—6772(2012)03—0017—03Transformationofslimewaterp
3、rocessingsysteminJisancoalpreparationplantCHAILin—lin,GUOBin—bin,XINGCong—cong(如nCoalPreparationPlant,YanzhouCoalMiningCo.,Ltd.,fining272069,China)Abstract:TheanalysisofslimewaterprocessingtreatmentinJisancoalpreparationplantshowsthatthereareahostofcaus
4、esleadtothecoarseslimeleakagesuchasthemassoverflowfromslimewaterbucket,theover—sizedmaterialintopressurefiltrationandcirculationsystem.Largeamountsofslackcoalandcleancoalincentrifugate,aftercentrifugingbyscreencentrifuge,directlymixintomiddlingsasslime,
5、thecoa]above0.1753filmleaksintoslimewater,thatmeanslotsofcleancoalislost.Sothekeytosolvetheseproblemsistocontroltheoverflowofslimewaterbucketandcycloneaswellasthesizeofmatericalsintosmudgetank.Transformtheslimewaterprocessingsystemfromthefollowingaspect
6、s:Addoverflowweiraroundslimewaterbucket,increaseangleofinclinationofsieveplate,buildaggregatebucket,installvibratingscreenandsievebend,recovercoarseslimebypumpingallthewaterfromsmudgetankintoslimewaterbucket.Theresultsshowthat,aftertransformation,thecoa
7、rseslimeispreventedfromleakingintopressurefiltrationsystem,thetreatmenteficiencyofslimewaterprocessingsystemandcleancoalyieldhaveincreased,theaccidentratehasdecreased.Jisancoalpreparationplantrecoversslackcleancoal3652.11tonseveryyear,whichvalues1.8991m
8、illionyuan.Keywords:coarseslime;slimewater;pressurefiltrationsystem;cleancoalyield;pipelineflowrate收稿日期:2012—03—07責(zé)任編輯:白婭娜作者簡介:柴琳琳(1985一),女,山東東平人,助理工程師,現(xiàn)在濟(jì)寧三號煤礦選煤廠從事選煤生產(chǎn)管理工作。引用格式:柴琳琳,郭賓賓,邢叢叢濟(jì)三選煤廠粗煤泥截粗試驗(yàn)[j]潔凈煤技術(shù),2012,18(3):17—19.柴