瀏覽次數:
導致直線振動篩功率的要素
直(zhi)線(xian)振動(dong)篩(shai)進程技能經濟(ji)指標(biao)篩(shai)選分級功(gong)率(lv)生產率(lv),前(qian)者(zhe)(zhe)為質量指標(biao),后者(zhe)(zhe)為數目指標(biao),它們之間有關系,此(ci)時(shi)還與其(qi)余諸多要素有關,這些(xie)要素決定直(zhi)線(xian)振動(dong)篩(shai)結果,導(dao)致直(zhi)線(xian)振動(dong)篩(shai)功(gong)率(lv)要素大體可以分三類:
1、篩網(wang)表面屬性為構造參(can)數導致
篩(shai)(shai)(shai)機使粒(li)子(zi)篩(shai)(shai)(shai)網(wang)(wang)表(biao)(biao)(biao)(biao)(biao)面(mian)(mian)(mian)作(zuo)垂直(zhi)運動(dong),因此篩(shai)(shai)(shai)選(xuan)(xuan)(xuan)(xuan)(xuan)分(fen)(fen)級(ji)功(gong)(gong)率(lv)(lv)(lv)(lv)高(gao),加(jia)(jia)工(gong)能力(li)大(da)(da),而(er)粒(li)子(zi)與篩(shai)(shai)(shai)網(wang)(wang)表(biao)(biao)(biao)(biao)(biao)面(mian)(mian)(mian)相對運動(dong)平行(xing)運動(dong)棒條篩(shai)(shai)(shai)、平面(mian)(mian)(mian)篩(shai)(shai)(shai)機、 震動(dong)設備(bei)網(wang)(wang):筒篩(shai)(shai)(shai)等,其篩(shai)(shai)(shai)選(xuan)(xuan)(xuan)(xuan)(xuan)分(fen)(fen)級(ji)功(gong)(gong)率(lv)(lv)(lv)(lv)加(jia)(jia)工(gong)能力(li)都低, 關于(yu)(yu)物料而(er)言,篩(shai)(shai)(shai)子(zi)生產率(lv)(lv)(lv)(lv)篩(shai)(shai)(shai)選(xuan)(xuan)(xuan)(xuan)(xuan)分(fen)(fen)級(ji)功(gong)(gong)率(lv)(lv)(lv)(lv)決(jue)定于(yu)(yu)篩(shai)(shai)(shai)眼(yan)尺(chi)度(du),生產率(lv)(lv)(lv)(lv)來(lai)源(yuan)(yuan)于(yu)(yu)篩(shai)(shai)(shai)網(wang)(wang)表(biao)(biao)(biao)(biao)(biao)面(mian)(mian)(mian)直(zhi)徑,篩(shai)(shai)(shai)網(wang)(wang)表(biao)(biao)(biao)(biao)(biao)面(mian)(mian)(mian)寬(kuan)生產率(lv)(lv)(lv)(lv)高(gao),篩(shai)(shai)(shai)選(xuan)(xuan)(xuan)(xuan)(xuan)分(fen)(fen)級(ji)功(gong)(gong)率(lv)(lv)(lv)(lv)來(lai)源(yuan)(yuan)于(yu)(yu)篩(shai)(shai)(shai)網(wang)(wang)表(biao)(biao)(biao)(biao)(biao)面(mian)(mian)(mian)長(chang)(chang)度(du),篩(shai)(shai)(shai)網(wang)(wang)表(biao)(biao)(biao)(biao)(biao)面(mian)(mian)(mian)長(chang)(chang)篩(shai)(shai)(shai)選(xuan)(xuan)(xuan)(xuan)(xuan)分(fen)(fen)級(ji)功(gong)(gong)率(lv)(lv)(lv)(lv)高(gao),通常(chang)長(chang)(chang)寬(kuan)比(bi)為篩(shai)(shai)(shai)子(zi)面(mian)(mian)(mian)積(即篩(shai)(shai)(shai)眼(yan)面(mian)(mian)(mian)積與整個篩(shai)(shai)(shai)網(wang)(wang)表(biao)(biao)(biao)(biao)(biao)面(mian)(mian)(mian)面(mian)(mian)(mian)積之比(bi))愈大(da)(da),則篩(shai)(shai)(shai)網(wang)(wang)表(biao)(biao)(biao)(biao)(biao)面(mian)(mian)(mian)單位面(mian)(mian)(mian)積生產率(lv)(lv)(lv)(lv)篩(shai)(shai)(shai)選(xuan)(xuan)(xuan)(xuan)(xuan)分(fen)(fen)級(ji)功(gong)(gong)率(lv)(lv)(lv)(lv)愈高(gao),篩(shai)(shai)(shai)眼(yan)尺(chi)度(du)愈大(da)(da),則單位篩(shai)(shai)(shai)網(wang)(wang)表(biao)(biao)(biao)(biao)(biao)面(mian)(mian)(mian)生產率(lv)(lv)(lv)(lv)越(yue)大(da)(da),篩(shai)(shai)(shai)選(xuan)(xuan)(xuan)(xuan)(xuan)分(fen)(fen)級(ji)功(gong)(gong)率(lv)(lv)(lv)(lv)越(yue)高(gao)。
2、被(bei)篩選(xuan)分級物料物理屬性
包(bao)括物(wu)料自身粒(li)(li)度(du)組(zu)合、比重、濕(shi)(shi)度(du)、篩(shai)目各(ge)占比粒(li)(li)子粒(li)(li)型等,當物(wu)料細粒(li)(li)含量(liang)較大(da)時,篩(shai)子生產率(lv)也大(da),當物(wu)料含濕(shi)(shi)量(liang)較大(da)時,通常說篩(shai)選(xuan)(xuan)(xuan)分級功率(lv)都會下降,但是(shi)篩(shai)眼尺度(du)愈(yu)大(da),水分導致愈(yu)小(xiao),因(yin)此(ci)關于含水分較大(da)濕(shi)(shi)物(wu)料,為了改進篩(shai)選(xuan)(xuan)(xuan)分級進程,通常可以選(xuan)(xuan)(xuan)用加大(da)篩(shai)眼方法(fa),或許選(xuan)(xuan)(xuan)用濕(shi)(shi)式篩(shai)選(xuan)(xuan)(xuan)分級,物(wu)料含泥量(liang)大(da)(當含泥量(liang)過8%時)應當選(xuan)(xuan)(xuan)用濕(shi)(shi)式篩(shai)選(xuan)(xuan)(xuan)分級,或預(yu)先洗礦。
3、生產條件導致
當篩(shai)(shai)(shai)(shai)子(zi)負荷較大(da)時(shi),篩(shai)(shai)(shai)(shai)選分級(ji)(ji)(ji)功率低,大(da)水(shui)準上(shang)篩(shai)(shai)(shai)(shai)子(zi)平率來源于篩(shai)(shai)(shai)(shai)眼(yan)巨細總篩(shai)(shai)(shai)(shai)選分級(ji)(ji)(ji)功率;篩(shai)(shai)(shai)(shai)眼(yan)愈(yu)大(da),篩(shai)(shai)(shai)(shai)選分級(ji)(ji)(ji)功率愈(yu)低時(shi),則生(sheng)產率愈(yu)高,喂料(liao)勻稱性(xing)對篩(shai)(shai)(shai)(shai)選分級(ji)(ji)(ji)進程意義大(da),篩(shai)(shai)(shai)(shai)子(zi)傾(qing)斜度(du)要(yao)適宜,通常經歷試驗來認(ren)定,再就篩(shai)(shai)(shai)(shai)子(zi)振(zhen)(zhen)(zhen)動(dong)幅度(du)與(yu)振(zhen)(zhen)(zhen)次,這(zhe)與(yu)篩(shai)(shai)(shai)(shai)子(zi)構造物性(xing)有關,范圍內,添(tian)加震動(dong)可以成(cheng)長(chang)篩(shai)(shai)(shai)(shai)選分級(ji)(ji)(ji)指標,要(yao)想設(she)備發揮的(de)好(hao),在工(gong)藝(yi)計劃(hua)中(zhong)就需要(yao)選用(yong)好(hao)的(de)原料(liao),不(bu)管是大(da)的(de)鋼鐵(tie)材料(liao)還是小(xiao)的(de)螺絲,都要(yao)是便宜的(de)零件(jian),這(zhe)樣才(cai)干縮短設(she)備在施工(gong)使用(yong)中(zhong)不(bu)會(hui)產生(sheng)因粗(cu)制(zhi)濫(lan)造而導致的(de)故障,礦山機(ji)械在運行時(shi)不(bu)免會(hui)有噪音(yin),直(zhi)線(xian)振(zhen)(zhen)(zhen)動(dong)篩(shai)(shai)(shai)(shai)也(ye)不(bu)例外,為(wei)了減小(xiao)噪音(yin)污染,我們在計劃(hua)工(gong)藝(yi)中(zhong)選用(yong)阻尼減振(zhen)(zhen)(zhen)辦法以及復合繃簧,它可以減小(xiao)篦條之間的(de)構造因整機(ji)震動(dong)而發生(sheng)的(de)噪音(yin)問題。
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