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1、申家莊煤礦選煤廠粗煤泥分選系統(tǒng)改造徐茂偉,杜偉2(1.冀中能源峰峰集團(tuán)有限公司申家莊煤礦選煤廠,河北邯鄲056000;2.河北省磁縣職業(yè)教育技術(shù)中心,河北磁縣056500)摘要:針對(duì)申家莊煤礦選煤廠粗煤泥含量高引起的浮選尾礦跑粗、高中損、高介耗等問(wèn)題.結(jié)合TBS分選原理及應(yīng)用效果,采用TBS干擾床分選機(jī)對(duì)粗煤泥分選系統(tǒng)進(jìn)行改造。具體措施為:加大原煤脫泥篩入料水沖溜槽的流量和沖洗力度,篩前段加設(shè)分流板,提高脫泥篩的脫泥效率;縮短傾斜板濃縮機(jī)的傾斜板間距,提高傾斜角度,減少溢流中粗顆粒含量;更換小篩孔篩板,增加噴水設(shè)備,提高脫介效率。改造后傾斜板濃縮機(jī)溢流中+0.500mm粗顆粒產(chǎn)率由10。1
2、0%降為2.10%,改造效果明顯;浮選壓力明顯降低,提高了精煤產(chǎn)率;TBS對(duì)粗煤泥分選效果良好,精煤質(zhì)量和產(chǎn)率均大幅提高;介耗降低1.11kg/t,中損降低4.76%。關(guān)鍵詞:粗煤泥;TBS干擾床分選機(jī);介耗;中損中圖分類號(hào):TD94文獻(xiàn)標(biāo)識(shí)碼:A文章編號(hào):1006—6772(2013)05—0010—04TransformationofcoarseslimeseparationsystemofShenjiazhuangcoalpreparationplantXUMaowei,DUWei(1.ShenjiazhuangCoalPreparationPlant,JizhongEnergyFe
3、ngfengGroupCo.,Ltd.,Handan056000,China;2.CixianVocationalTechnologyEducationCenter,Cixian056500,China)Abstract:DuetohighcoarseslimecontentinShenjiazhuangcoalpreparationplant,therewerelotsofproblemssuchascoarseflotationtailings,highmiddlingslossanddensemediumconsumption.Basedontheseparationprincipl
4、eandapplicationeffectsofTBS,transformthecoarseslimeseparationsystemwithTBS.Increasetherawcoaldeslimingsievewaterchuteflowaswellasflushingstrength,adddiversionplateinordertoimprovetheeficiencyofdeslimingsieve.Shortentheinclinedplatespacingofinclinedplatethickener,improveangleofinclinationtoreduceth
5、econtentofcoarsesoilparticleinoverflow.Replacethesmallmeshsieveplateandincreasethewaterjetequipmenttoimprovetheefficiencyofdensemedium.Theresultsshowthat,aftertransformation,theyieldof+0.500mmcoarsegrainininclinedplatethickenerovel3C[OWdecreasefrom10.10percentto2.10percent.Flotationpressurereduces
6、ignificantlyandthecleancoalrecoveryrateincreaseobviously.TBSforcoarsecoalslimehasgreatseparationeffects.Densemediumconsumptionandmiddlingslossdecreaseby1.11kg/tand4.76percentrespectively.Keywords:coarseslime;TBS;densemediumconsumption;middlingsloss收稿日期:2013—06—17責(zé)任編輯:白婭娜作者簡(jiǎn)介:徐茂偉(1985~),男,山東濰坊人,碩士研
7、究生,畢業(yè)于西安科技大學(xué)礦物加工工程專業(yè),現(xiàn)從事生產(chǎn)技術(shù)管理工作。引用格式:徐茂偉,杜傳.申家莊煤礦選煤廠粗煤泥分選系統(tǒng)改造EJ3.潔凈煤技術(shù),2013,19(5):10-13.《潔凈煤技術(shù)}2013年第l9卷第5期r中國(guó)科技核心期刊礦業(yè)類核心期刊J干擾沉降運(yùn)動(dòng)又在自生介質(zhì)中分選。低密度物料0引言上浮至溢流收集槽,從溢流口排出;高密度物料穿申家莊煤礦選煤廠屬礦井型選煤廠,原有一座過(guò)分選床層聚集在TBS機(jī)體下部,最終通過(guò)底