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篩分機的分類

2014-12-08 17:35
篩(shai)(shai)(shai)分(fen)機按(an)篩(shai)(shai)(shai)面(mian)(mian)的(de)情況及分(fen)類:1、固定篩(shai)(shai)(shai)面(mian)(mian);2、振動(dong)篩(shai)(shai)(shai)面(mian)(mian); 3、滾(gun)筒篩(shai)(shai)(shai)面(mian)(mian);4、運動(dong)篩(shai)(shai)(shai)面(mian)(mian); 5、其它類型篩(shai)(shai)(shai)面(mian)(mian)等。

固定篩面

固定(ding)篩
固定(ding)篩(shai)(shai)(shai)分(fen)(fen)為固定(ding)篩(shai)(shai)(shai)格和條形篩(shai)(shai)(shai)二種。格篩(shai)(shai)(shai)篩(shai)(shai)(shai)孔一般為方形或(huo)(huo)圓形,條形篩(shai)(shai)(shai)孔一般為篩(shai)(shai)(shai)縫(feng);篩(shai)(shai)(shai)面角度一般為25度至85度之(zhi)間;工作部分(fen)(fen)固定(ding)不動,靠(kao)物(wu)料沿工作面滑(hua)動而使物(wu)料得到篩(shai)(shai)(shai)分(fen)(fen)。固定(ding)格篩(shai)(shai)(shai)是(shi)在選礦(kuang)廠應用較多(duo)的一種,一般用于(yu)粗(cu)碎(sui)(sui)或(huo)(huo)中碎(sui)(sui)之(zhi)前的預(yu)先(xian)篩(shai)(shai)(shai)分(fen)(fen)。它(ta)結構簡單(dan),制造方便。不耗動力、可以直(zhi)接把礦(kuang)石卸到篩(shai)(shai)(shai)面上。主(zhu)要缺點(dian)是(shi)生產率低(di)、篩(shai)(shai)(shai)分(fen)(fen)效(xiao)率低(di),一般只有 50—60% 。

滾動篩(shai)面

滾筒(tong)篩工(gong)(gong)作部分(fen)為(wei)圓(yuan)筒(tong)形,整(zheng)個(ge)篩(shai)(shai)(shai)子繞筒(tong)體(ti)軸線回轉,軸線在一(yi)般情(qing)況下裝成(cheng)不大(da)的(de)(de)傾角。物(wu)料(liao)從圓(yuan)筒(tong)的(de)(de)一(yi)端(duan)給入,細級別物(wu)料(liao)從筒(tong)形工(gong)(gong)作表(biao)面的(de)(de)篩(shai)(shai)(shai)孔通過,粗粒(li)物(wu)料(liao)從圓(yuan)筒(tong)的(de)(de)另(ling)一(yi)端(duan)排(pai)出(chu)。圓(yuan)筒(tong)篩(shai)(shai)(shai)的(de)(de)轉速很低、工(gong)(gong)作平穩、動(dong)力平衡好。但是(shi)其篩(shai)(shai)(shai)孔易堵(du)塞變(bian)型、篩(shai)(shai)(shai)分(fen)效率低,工(gong)(gong)作面積小,生產(chan)率低。選礦廠很少用它來作篩(shai)(shai)(shai)分(fen)設(she)備(bei)。

振(zhen)動(dong)篩(shai)面

振(zhen)動(dong)篩(shai)(shai)結構由四部(bu)分(fen)組成(cheng)(cheng),高(gao)頻(pin)振(zhen)動(dong)電(dian)機、一級固定格(ge)篩(shai)(shai)和二級分(fen)級固定格(ge)篩(shai)(shai)、振(zhen)動(dong)彈簧(huang)及機殼。篩(shai)(shai)面傾(qing)斜(xie)(xie)度與篩(shai)(shai)分(fen)篩(shai)(shai)率(lv)成(cheng)(cheng)反正(zheng),篩(shai)(shai)面傾(qing)斜(xie)(xie)度越大(da)流(liu)動(dong)速度越快(kuai)。
采用振(zhen)動(dong)篩原理的有:直(zhi)線振動(dong)篩、水平振(zhen)動(dong)(dong)篩、搖(yao)動(dong)(dong)篩、偏(pian)心篩、旋轉振(zhen)動(dong)(dong)篩、圓振篩、香蕉振(zhen)動篩、概(gai)率篩等(deng)等(deng)。按其傳動機構的(de)不同,又(you)可(ke)以分(fen)為以下幾種:偏(pian)心振(zhen)動篩、慣(guan)性(xing)振(zhen)動篩、自定(ding)中心振(zhen)動篩、共振(zhen)篩。

運(yun)動篩面

工(gong)作原(yuan)理:滾軸(zhou)篩的(de)(de)(de)工作(zuo)機構是由數根篩(shai)軸(zhou)在水平(ping)面內平(ping)行布置,各篩(shai)軸(zhou)按同一方向旋轉,使煤(mei)流沿篩(shai)面向前(qian)運動。同時輸送物料,物料中小于(yu)篩(shai)縫尺寸的(de)(de)(de)顆粒從篩(shai)縫中落下,大于(yu)篩(shai)縫尺寸的(de)(de)(de)顆粒留(liu)在篩(shai)面上(shang)繼續向前(qian)移動,落入(ru)碎(sui)煤(mei)機里(li)。
采用滾(gun)軸(zhou)篩原理(li)的有:滾(gun)軸(zhou)篩、滾(gun)軸(zhou)等厚(hou)篩、齒輥篩、葉輪(lun)篩、篩(shai)分布(bu)料器(qi)