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1、唐口選煤廠選煤工藝的確定王鳳紅,龐建業(yè)2,王大國。(1.淄博礦業(yè)集團有限責(zé)任公司煤炭運銷公司,山東淄博255120;2.淄博光正實業(yè)有限公司運銷科,山東淄博255120;3.淄博礦業(yè)集團有限責(zé)任公司唐口煤礦選煤廠,山東濟寧272000)摘要:唐口選煤廠跳汰車間存在工作單一,加工能力與礦井處理能力不配套,原煤質(zhì)量差及產(chǎn)品結(jié)構(gòu)不合理等問題。根據(jù)選煤廠煤質(zhì)特性及產(chǎn)品結(jié)構(gòu),通過對比兩產(chǎn)品、三產(chǎn)品重介旋流器和干擾床分選機(TBS)、煤泥重介旋流器的主要性能特點,確定選煤廠新工藝為:50.0~0.5mm選前脫泥有壓
2、兩段兩產(chǎn)品重介旋流器分選,配合實時密控系統(tǒng)監(jiān)測、調(diào)節(jié);0.5—0.3mm煤泥采用重介有壓三產(chǎn)品旋流器分選。改造后,選煤廠精煤產(chǎn)率提高3%,矸石帶煤降至1%以下,提高了選煤效率和產(chǎn)品價值;簡化了煤泥回收系統(tǒng),介耗降至1.5kg/t以下,降低了30%左右;產(chǎn)品回收率大幅提高,經(jīng)濟效益明顯;生產(chǎn)系統(tǒng)自動化程度高,操作簡化,與改造前相比,每班減少6人。關(guān)鍵詞:選煤工藝;選前脫泥;兩產(chǎn)品重介旋流器;煤泥重介旋流器;跳汰選中圖分類號:TD94文獻標識碼:A文章編號:1006—6772(2013)04~0018—03
3、DeterminationofcoalseparationprocessofTangkoucoalpreparationplantWANGFenghong,PANGJianye,WANGDaguo(1.CoalTransportandMarketingCompany,ShandongEnergyZiboMiningGroupCo.,Ltd.,Zibo255120,China;2.CoalTransportandMarketingDepartment,ZiboGuangzhengIndustrialCo.
4、,Ltd.,Zibo255120,China;3.TangkouCoalPreparationPlant,ShandongEnergyZiboMiningGroupCo.,Ltd.,Zibo255120,China)Abstract:TheseparationprocesshadaseriesofproblemsinTangkoucoalpreparationplant.Theseparationcapacitycouldntmatchwiththeminingcapacity,therawcoalqu
5、alitywaspoorandproductstructurewasirrationalandthelike.Basedonthecoalquality,productstructure,characteristicsofthree-productpressurizedfeedingdensemediumcyclone,TBSandslimedensemediumcyclone,determinetheprocessaftertransformation.Theparticlerangingfrom50
6、.0mmto0.5mmisseparatedwithpre—deslimingtwo—productpressurizedfeedingdense—mediumcyclone,whichismonitoredwithreal—timedensity—controlsystem.Theparticlerangingfrom0.5mmto0.3mmisseparatedwiththree—productpressurizedfeedingdensemediumcyclone.Aftertransformat
7、ion,thecleancoalyieldisimprovedby3percent,thecoalmixedingangueisdecreasedtolessthan1percent.Improvethecoalpreparationefficiency,productsvalueandproductsrecovery,simplifytheslimerecoverysystem,themediumconsumptionisreducedtolessthan1.5kg/t,byabout30percen
8、t.Theworkersnumberofeveryshiftrequiredisdecreaseby6.Keywords:coalseparationprocess;pre-desliming;two—productdensemediumcyclone;slimedensemediumcyclone;iigging收稿日期:2013一o4—28責(zé)任編輯:白婭娜作者簡介:王鳳紅(1974一),女,內(nèi)蒙古通遼人,工程師,副科長,1998年畢業(yè)于