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篩分機設備原理與分類

發布時間:2023/9/10 15:59:36 瀏覽:

篩(shai)(shai)(shai)(shai)(shai)分(fen)的(de)顆(ke)粒級別取決于(yu)(yu)(yu)篩(shai)(shai)(shai)(shai)(shai)面(mian),篩(shai)(shai)(shai)(shai)(shai)面(mian)分(fen)篦(bi)柵、板篩(shai)(shai)(shai)(shai)(shai)和(he)網篩(shai)(shai)(shai)(shai)(shai)三種。篦(bi)柵適用(yong)(yong)于(yu)(yu)(yu)篩(shai)(shai)(shai)(shai)(shai)分(fen)大(da)顆(ke)粒物料,篦(bi)柵縫隙為篩(shai)(shai)(shai)(shai)(shai)下物粒徑(jing)的(de)1.1~1.2倍,一(yi)般不(bu)宜小于(yu)(yu)(yu)50毫(hao)米。板篩(shai)(shai)(shai)(shai)(shai)由(you)(you)鋼板沖孔而(er)成(cheng)(cheng),孔呈圓形(xing)(xing)(xing)、方(fang)(fang)形(xing)(xing)(xing)或(huo)矩(ju)(ju)形(xing)(xing)(xing),孔徑(jing)一(yi)般為10~80毫(hao)米,使用(yong)(yong)壽命較長,不(bu)易堵(du)塞(sai),適用(yong)(yong)于(yu)(yu)(yu)篩(shai)(shai)(shai)(shai)(shai)分(fen)中(zhong)等(deng)顆(ke)粒。網篩(shai)(shai)(shai)(shai)(shai)由(you)(you)鋼絲編成(cheng)(cheng)或(huo)焊成(cheng)(cheng),孔呈方(fang)(fang)形(xing)(xing)(xing)、矩(ju)(ju)形(xing)(xing)(xing)或(huo)長條形(xing)(xing)(xing),常用(yong)(yong)孔徑(jing)一(yi)般為6~85毫(hao)米,長條形(xing)(xing)(xing)篩(shai)(shai)(shai)(shai)(shai)孔適合(he)于(yu)(yu)(yu)篩(shai)(shai)(shai)(shai)(shai)分(fen)潮濕的(de)物料,網篩(shai)(shai)(shai)(shai)(shai)的(de)優點(dian)是有(you)效面(mian)積較大(da)。篩(shai)(shai)(shai)(shai)(shai)分(fen)機原理(li)分(fen)為,滾(gun)動(dong)(dong)篩(shai)(shai)(shai)(shai)(shai)分(fen)和(he)振動(dong)(dong)篩(shai)(shai)(shai)(shai)(shai)分(fen)。滾(gun)動(dong)(dong)篩(shai)(shai)(shai)(shai)(shai)分(fen)包(bao)括篩(shai)(shai)(shai)(shai)(shai)軸(zhou)式(shi)(shi)篩(shai)(shai)(shai)(shai)(shai)分(fen)機、滾(gun)筒篩(shai)(shai)(shai)(shai)(shai)、實(shi)心、螺旋滾(gun)軸(zhou)篩(shai)(shai)(shai)(shai)(shai)、葉(xie)片式(shi)(shi)滾(gun)軸(zhou)篩(shai)(shai)(shai)(shai)(shai)等(deng),振動(dong)(dong)篩(shai)(shai)(shai)(shai)(shai)分(fen)基本有(you)香蕉篩(shai)(shai)(shai)(shai)(shai)、高服篩(shai)(shai)(shai)(shai)(shai)、張(zhang)弛(chi)篩(shai)(shai)(shai)(shai)(shai)等(deng)。滾(gun)動(dong)(dong)類篩(shai)(shai)(shai)(shai)(shai)分(fen)原理(li)設備采用(yong)(yong)強行輸送,不(bu)易造(zao)成(cheng)(cheng)物料堵(du)塞(sai)篩(shai)(shai)(shai)(shai)(shai)面(mian)。振動(dong)(dong)式(shi)(shi)由(you)(you)于(yu)(yu)(yu)原理(li)特性粘濕物料(一(yi)般水分(fen)6%以上)篩(shai)(shai)(shai)(shai)(shai)分(fen)易造(zao)成(cheng)(cheng)堵(du)塞(sai),功率(lv)較大(da)。 

篩分機設備原理(li):

篩分機利用物料的大小差異,質量不一,再加上液體沉降速度的不同,微小的物料,較大的物料則沉到槽底。分級篩利用螺旋向上推出物料,然后進行機械化篩分的設備,可以將磨機中的物料按照級別過濾出來,最后再把較大的物料使用螺旋片旋入磨機進料口,把過濾后的微小物料從溢流管溢出。分級篩的底座使用的是槽鋼,機身使用鋼板焊接而成。 

篩(shai)分(fen)機分(fen)類:

火力發電廠燃煤(mei)(mei)鍋(guo)爐是燃燒一定比例粒(li)度的(de)(de)煤(mei)(mei)矸(gan)石,在煤(mei)(mei)礦來煤(mei)(mei)中其粒(li)徑大(da)小不(bu)均,煤(mei)(mei)炭中有(you)(you)大(da)部(bu)分(fen)物料粒(li)度都是合格粒(li)徑,不(bu)需要重復破碎(sui)。這部(bu)分(fen)物料一般約(yue)占整個物料的(de)(de)35~75%。現國內篩分(fen)設(she)備繁(fan)多。常用的(de)(de)篩分(fen)設(she)備可分(fen)二(er)(er)大(da)類(lei),一種是振動輸送(song)型的(de)(de),一種是強行輸送(song)型的(de)(de),二(er)(er)者之間各(ge)有(you)(you)優缺(que)點。最好(hao)要根椐物料的(de)(de)情況參(can)數來選型。 

篩分機分固定篩和活動篩兩類,活動篩又分轉動篩和振動篩。 固定篩大多采用篦柵裝在破碎機進口上方,以防止超規格的物料落入。轉動篩大多由板篩折成多角形或圓形筒體而成,其結構簡單、壽命長,但生產率低、機體笨重、龐大,但很少采用。
振動篩

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