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1、趙固二選燥廠煤泥水處理系統(tǒng)的優(yōu)化改造任建民，劉磊2，樊合高(1．河南煤業(yè)化工集團(tuán)有限責(zé)任公司焦煤公司，河南焦作454150；2．中國礦業(yè)大學(xué)化工學(xué)院，江蘇徐州221008)摘要：針對(duì)趙固二礦選煤廠生產(chǎn)中存在的浮選作業(yè)無法正常進(jìn)行、壓濾機(jī)能力不足、洗水難以閉路循環(huán)等問題。綜合考慮藥劑添加量、沉降速度、壓縮高度及上清液澄清度等因素，通過煤泥水絮凝沉降試驗(yàn)，發(fā)現(xiàn)質(zhì)量分?jǐn)?shù)為1．0％的凝聚劑TLT8840和質(zhì)量分?jǐn)?shù)為0．1％的絮凝劑TLT8610添加量分別為O．20mL和O．15mL時(shí)煤泥沉降濃縮效果最好，同時(shí)對(duì)藥劑制備系統(tǒng)、輸送
2、設(shè)備及加藥點(diǎn)分別進(jìn)行了優(yōu)化和改造。煤泥水系統(tǒng)優(yōu)化改造后，選煤廠真正實(shí)現(xiàn)了洗水閉路循環(huán)，降低了生產(chǎn)成本和用水量，徹底解決了煤泥水對(duì)環(huán)境的污染問題；煤泥水處理藥劑成本由原來的0．44元／t降至現(xiàn)在的0．3l元／t，每年可節(jié)省藥劑成本約39萬元，節(jié)省電費(fèi)約65萬元；優(yōu)化改造后，選煤廠真正實(shí)現(xiàn)了全入選，僅多產(chǎn)出的浮選精煤，每年就可多收益約720萬元。關(guān)鍵詞：煤泥水系統(tǒng)；凝聚劑；絮凝劑；加藥點(diǎn)；優(yōu)化改造中圖分類號(hào)：TD946．2文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1006—6772(2012)03—0010—03Transformationo
3、fslimewaterprocessingsysteminZhaoguNo．2coalpreparationplantRENJian—min，LIULei。FANHe．gao，(1．JiaozuoCoalCo．，Ltd．，HenanCoalChemicalIndustryGroupCo．，Ltd．，Jiaozuo454150，China；2．SchoolofChemicalEngineeringandTechnology，ChinaUniversityofMiningandTechnology，Xuzhou221008，
4、China)Abstract：TherearesomeproblemsintheproductionprocessofZhaoguNo．2coalpreparationplant，suchasunstableflotationprocess，inadequatethroughputcapacityofpressurefilteranddefectiveclosedwatercircuitandthelike．Consideringadditiveamountofreagents，settlingvelocity，comp
5、ressionaltitudeandclarificationdegreeofsupematant，designslimeflocculationandsettingexperiments．TheresultsshowthattheconcentratedeffectisthebestwhiletheamountofcoagulantTLT8840，whosemassfractioniS1．0percent，iS0．20mL，theamountofflocculantTLT8610，whosemassfractioniS
6、0．1percent．iS0．15mL．Alsooptimizeandtransformreagentspreparationsystem，conveyingequipmentsanddosingpoints．Aftertransformation，theclosedwatercircuitworkswel1．Theproductioncostandwaterconsumptiondecrease，solvethepollutionproblemcompletely．Thereagentscostdecreasesfro
7、m0．44yuanpertonto0．31yuanpertonwhichmeanstheplantwouldachieveabout390thousandyuaninreagentcostsaving，about650thousandyuaninelectricitycostsavingannually．Thankstothemodification，thecoalpreparationplanttrulyrealizesthewhole—sizefractionseparation．Theincreasedcleanc
8、oalannuallyworthesasmuchas7．2millionyuan．Keywords：slimewatercirculatingsystem；coagulant；flocculant；dosingpoints；optimizationandmodification河南煤業(yè)化工集團(tuán)有限責(zé)任公司焦作煤業(yè)趙煤
