freepeople性欧美熟妇, 色戒完整版无删减158分钟hd, 无码精品国产vα在线观看DVD, 丰满少妇伦精品无码专区在线观看,艾栗栗与纹身男宾馆3p50分钟,国产AV片在线观看,黑人与美女高潮,18岁女RAPPERDISSSUBS,国产手机在机看影片

正文內(nèi)容

基于柱-機(jī)聯(lián)合的硫化礦分級(jí)浮選研究博士學(xué)位論文-資料下載頁(yè)

2025-06-24 16:02本頁(yè)面
  

【正文】 opper Phase Analysis Result of Raw Ore60表64主要金屬礦物的嵌布粒度60Table 64Dissemination Size of Main Metallic Minerals60表65原礦粒度組成61Table 65Granularity Composition of Raw Ore61表66旋流器溢流粒度組成62Table 66Granularity Composition of Overflow of Hydrocyclone62表67旋流器沉砂篩分粒度組成62Table 67Granularity Composition of Underflow of Hydrocyclone62表68分級(jí)浮選條件試驗(yàn)方案63Table 68Conditional Test Plan of Classification Flotation63表69旋流靜態(tài)微泡浮選柱試驗(yàn)系統(tǒng)設(shè)備組成表63Table 69Equipment of Laboratory Test of FCSMC63表610原礦閉路浮選試驗(yàn)結(jié)果65Table 610Results of Closed Circuit Flotation of Raw Ore65表611粗粒級(jí)閉路浮選試驗(yàn)結(jié)果65Table 611Results of Closed Circuit Flotation of Coarse Particle65表612細(xì)粒級(jí)閉路浮選試驗(yàn)結(jié)果66Table 612Results of Closed Circuit Flotation of Fine Particle66表613原礦分級(jí)浮選閉路試驗(yàn)結(jié)果66Table 613Results of Closed Circuit Classification Flotation66表614原礦分級(jí)浮選與原礦直接浮選試驗(yàn)結(jié)果的對(duì)比66Table 614Results of Classification Flotation VS Direct Flotation66表615原礦浮選柱直接閉路浮選試驗(yàn)結(jié)果67Table 615Results of Closed Circuit Flotation of Raw Ore in FCSMC67表616粗粒級(jí)浮選柱閉路浮選試驗(yàn)結(jié)果67Table 616Results of Closed Circuit Flotation of Coarse Particle in FCSMC67表617細(xì)粒級(jí)浮選柱閉路浮選試驗(yàn)結(jié)果68Table 616Results of Closed Circuit Flotation of Fine Particle in FCSMC68表618浮選柱分級(jí)浮選閉路試驗(yàn)綜合結(jié)果68Table 618Results of Closed Circuit Classification Flotation of FCSMC68表619原礦浮選柱直接浮選與分級(jí)浮選閉路試驗(yàn)結(jié)果比較68Table 619Results of Classification Flotation VS Direct Flotation in FCSMC68表620不同產(chǎn)物分選的最終指標(biāo)69Table 620Final Results of Different Flotation Technique69表621浮選柱+浮選機(jī)浮選流程浮選最終指標(biāo)69Table 621Final Results of Different Flotation Technique69表622三種分級(jí)浮選流程的浮選指標(biāo)對(duì)比69Table 622Final Results of Three Classification Flotation Flowsheet69表623原礦浮選柱直接浮選尾礦篩分結(jié)果69Table 623Screening Results of Tailings of Direct Flotation69表624粗粒級(jí)浮選柱閉路浮選尾礦篩分結(jié)果71Table 623Screening Results of Tailings of Direct Flotation of FCSMC71表625原礦中主要礦物單體解離度73Table 625Liberation Degree of Main Minerals in Raw Ore73表626精礦中主要礦物單體解離度74Table 626Liberation Degree of Main Minerals in Concentrate74表627尾礦中主要礦物單體解離度74Table 627Liberation Degree of Main Minerals in Concentrate74表628粗粒級(jí)粗精礦再磨浮選機(jī)閉路浮選試驗(yàn)結(jié)果75Table 628Results of Coarse Concentrate Regrinding Flotation Flowsheet75表629細(xì)粒級(jí)浮選柱閉路浮選試驗(yàn)結(jié)果76Table 629Results of Closed Circuit Flotation of FCSMC76表630浮選柱+機(jī)聯(lián)合工藝與浮選機(jī)分選指標(biāo)對(duì)比76Table 630Flotation Performance of FCSMC+ Flotation Cell VS Single Flotation Cell76表71磨機(jī)單位生產(chǎn)能力對(duì)比79Table 71Unit Production Capacity of Grinding Mill79表72III系列與I、II系列磨礦細(xì)度對(duì)比80Table 72Grinding Fineness Between the 3rd System and the 1st , 2nd System80表73III系列與I、II系列浮選指標(biāo)對(duì)比80Table 73Flotation Performance Between the 3rd System and the 1st , 2nd System80表74一段磨礦與兩段磨礦產(chǎn)品粒級(jí)組成對(duì)比表81Table 74Comparison of Granularity Composition of One Stage and Two Stage Grinding81表75粒級(jí)回收率對(duì)比表82Table 75Comparison of Granularity Recovery82表76Ⅲ系列班樣指標(biāo)對(duì)比匯總表84Table 76Comparison of the Flotation Performance of the 3rd System84表77浮選柱流程考查結(jié)果84Table 77Investigation Results of Production Process of FCSMC84表78穩(wěn)定試驗(yàn)Ⅲ系列的總體指標(biāo)情況85Table 78The Flotation Performance of FCSMC in Stable Experiment85表79浮選柱和Ⅰ、Ⅱ系列班樣指標(biāo)對(duì)比86Table 79Comparison of the Flotation Performance of FCSMC and 1st,2nd System86表710浮選機(jī)和Ⅰ、Ⅱ系列班樣指標(biāo)對(duì)比86Table 710Comparison of the Flotation Performance of Flotation Cell and 1st,2nd System86表711三個(gè)系列總體指標(biāo)對(duì)比86Table 711Comparison of Flotation Performance of All the Three System86表712分級(jí)浮選的指標(biāo)與不分級(jí)浮選的指標(biāo)相比較結(jié)果87Table 712Comparison of Flotation Performance Classification and Direct Flotation87表713浮選柱尾礦篩分結(jié)果88Table 713Screening Results of Tailings of FCSMC888表714浮選機(jī)浮選尾礦篩分結(jié)果88Table 714Screening Results of Tailings of Flotation Cell88表715浮選柱原礦中主要礦物單體解離度89Table 715Liberation Degree of Main Minerals in Raw Ore of FCSMC89表716浮選機(jī)原礦主要礦物單體解離度89Table 716Liberation Degree of Main Minerals in Raw Ore of Flotation Cell89表717浮選柱尾礦中主要礦物單體解離度90Table 717Liberation Degree of Main Minerals in Tailings of FCSMC901引言1引言1 Introduction 課題來源(Subject Origin)本課題來源于“十一五”國(guó)家科技支撐計(jì)劃項(xiàng)目:“貧雜難選礦石柱式短流程浮選技術(shù)及裝備研究”。是其課題二“大型柱式高效分選設(shè)備及短流程分選工藝開發(fā)”中專題二“硫化礦柱式高效分選設(shè)備與短流程分選工藝開發(fā)”的主要工藝研究部分之一。 課題的提出(Subject Proposing) 在云銅公司大紅山銅礦進(jìn)行硫化銅礦分選的實(shí)踐以及在其它寬粒級(jí)硫化礦的分選試驗(yàn)都表明:對(duì)于寬粒級(jí)硫化礦的分選,浮選柱和浮選機(jī)的單獨(dú)浮選都存在明顯的粒度效應(yīng),所謂的粒度效應(yīng)就是指不同的浮選方法在處理礦石時(shí),都會(huì)存在適合其處理的粒度范圍,入選的礦石粒度處于該范圍時(shí),設(shè)備的特性得以發(fā)揮,會(huì)取得很好的分選效果,反之則分選效果欠佳,因此,就把分選方法隨著粒度的變化而表現(xiàn)出來的分選指標(biāo)的變化成為分選方法的粒度效應(yīng)。浮選柱對(duì)粗粒級(jí)的回收效率較低,而浮選機(jī)浮選過程對(duì)細(xì)粒級(jí)的回收同樣存在不足之處,因此,由浮選柱、浮選機(jī)兩種分選設(shè)備單獨(dú)衍生的分選工藝都存在明顯的不足。 對(duì)山東某含金硫化礦的尾礦進(jìn)行篩析的結(jié)果[[]孫永峰,劉炯天,曹亦俊,[J].礦山機(jī)械,2012(4):14.]如表11所示。表11 山東某金礦浮選柱、浮選機(jī)尾礦篩析結(jié)果對(duì)比Table 11 The Screening Result of the Tailings of FCSMC and Floatation Cells in a Gold Mine樣品名稱檢測(cè)粒級(jí)(mm)+ + +浮選柱尾礦產(chǎn)率(%)Au分布率(%)浮選機(jī)尾礦產(chǎn)率(%)Au分布率(%)%,浮選柱和浮選機(jī)流程所得到的尾礦的金品位非常接近, g/ g/t,但從表11中看:1)浮選柱尾礦中的金屬分布可以看出浮選柱分選過程中的金屬損失主要分布在最粗的+,%%,;2)對(duì)浮選機(jī)的尾礦來說,金屬損失也同樣分布在最粗的+,%,%相比,與浮選柱的金屬損失分布有明顯不同。這些數(shù)據(jù)表明,雖然從整體數(shù)據(jù)上看,浮選柱和浮選機(jī)的尾礦品位非常接近,而且金屬損失主要分布在最粗和最細(xì)粒級(jí),在大的趨勢(shì)是一致的,但仔細(xì)分析可以知道,浮選柱在較粗粒級(jí)的損失較高,說明對(duì)于該金礦,浮選柱對(duì)粗粒級(jí)的回收能力偏弱,而浮選機(jī)對(duì)微細(xì)粒級(jí)的回收不夠理想是造成兩者尾礦接近的主要原因。對(duì)山東另外一個(gè)金礦的考察數(shù)據(jù)也說明了浮選柱和浮選機(jī)在分選寬粒級(jí)礦物時(shí)的粒度效應(yīng)。該金礦的分選工藝流程中包括了浮選柱和浮選機(jī)兩種設(shè)備,對(duì)浮選柱和浮選機(jī)精礦的考察結(jié)果如表12所示。表12 山東某金礦浮選柱與浮選機(jī)精礦分析對(duì)比Table 12 The Screening Result of the Concentrate of FCSMCand Floatation Cells in a Gold Mine in Shandong產(chǎn)品名稱平均粒度(mm)浮選機(jī)精礦(優(yōu)先浮選)浮選柱精礦(粗選)浮選機(jī)精礦(掃選)從表12所示的結(jié)果可以看出:,遠(yuǎn)低于浮選機(jī)精礦的平均粒度,進(jìn)一步表明浮選柱和浮選機(jī)在浮選過程中存在明顯的粒度效應(yīng)。因此,如何結(jié)合浮選設(shè)備的特點(diǎn),充分發(fā)揮各種分選設(shè)備的正粒度效應(yīng),避免其負(fù)粒度效應(yīng),更好的處理寬粒級(jí)礦物成為很重要的問題,這也是本課題的出發(fā)點(diǎn)和切入點(diǎn)。 研究背景(Research Background)隨著我國(guó)礦產(chǎn)工業(yè)的不斷發(fā)展,礦產(chǎn)資源開采規(guī)模不斷擴(kuò)大,貧、細(xì)、雜難選礦比例日益增大,與此同時(shí)礦產(chǎn)下游用戶對(duì)礦產(chǎn)品的質(zhì)量要求卻越來越高,從而進(jìn)一步激化了資源貧化與產(chǎn)品需求之間的矛盾[14]。對(duì)于硫化礦物而言,因其性質(zhì)較脆,較易磨碎,因此,在礦石整體磨
點(diǎn)擊復(fù)制文檔內(nèi)容
黨政相關(guān)相關(guān)推薦
文庫(kù)吧 www.dybbs8.com
備案圖鄂ICP備17016276號(hào)-1