發布時間：2023/9/11 17:14:41 瀏覽：

篩分(fen)機(ji)篩板和篩孔的形狀：

篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)分粒度在25 mm以(yi)上，一般用(yong)(yong)沖(chong)孔(kong)(kong)或(huo)鉆孔(kong)(kong)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)板(ban)，孔(kong)(kong)眼多數(shu)采用(yong)(yong)圓(yuan)孔(kong)(kong)，菱形(xing)排列。25 mm以(yi)下(xia)可(ke)(ke)用(yong)(yong)編(bian)織篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)網(wang)，編(bian)織篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)網(wang)為方(fang)孔(kong)(kong)。25 mm的(de)(de)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)孔(kong)(kong)，可(ke)(ke)以(yi)用(yong)(yong)沖(chong)孔(kong)(kong)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)板(ban)，或(huo)編(bian)織篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)網(wang)，編(bian)織篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)網(wang)應(ying)防止篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)條(tiao)滑動，篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)孔(kong)(kong)變形(xing)。對于1 mm以(yi)下(xia)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)分（包括脫泥(ni)、脫水(shui)、脫介）采用(yong)(yong)條(tiao)縫(feng)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)板(ban)0.5 mm以(yi)下(xia)的(de)(de)可(ke)(ke)以(yi)用(yong)(yong)條(tiao)縫(feng)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)板(ban)（用(yong)(yong)螺桿穿(chuan)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)條(tiao)上圓(yuan)環(huan)或(huo)焊接的(de)(de)）或(huo)尼龍篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)網(wang)。不論(lun)是篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)板(ban)或(huo)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)網(wang)，本身須繃緊(jin)，并和篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)箱緊(jin)固，這是十分重要的(de)(de)。既(ji)可(ke)(ke)以(yi)延長篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)板(ban)、篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)網(wang)、篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)箱的(de)(de)壽命，提高篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)分效(xiao)率，而且(qie)可(ke)(ke)以(yi)減輕噪音。

對于50 mm以上的(de)篩(shai)板，經(jing)常由(you)鋼筋(jin)或輕軌(gui)(gui)制成(cheng)。尤其是(shi)固定篩(shai)使用舊鋼軌(gui)(gui)更是(shi)合(he)適(shi)。棒形(xing)(xing)篩(shai)條都制成(cheng)楔(xie)形(xing)(xing)的(de)，上寬下(xia)窄(zhai)，便(bian)于物料通過。

圓(yuan)形(xing)篩(shai)(shai)(shai)孔(kong)(kong)(kong)(kong)，以圓(yuan)的直(zhi)徑標明篩(shai)(shai)(shai)孔(kong)(kong)(kong)(kong)的大(da)小，能保證通過(guo)的粒度都小于篩(shai)(shai)(shai)孔(kong)(kong)(kong)(kong)的尺(chi)寸，其篩(shai)(shai)(shai)下產品基本(ben)不含(han)大(da)于篩(shai)(shai)(shai)孔(kong)(kong)(kong)(kong)的大(da)小，但天上石麟形(xing)的對角線是(shi)邊(bian)長的1.414倍，有的資料認(ren)為(wei)通過(guo)方孔(kong)(kong)(kong)(kong)的最(zui)大(da)顆(ke)(ke)粒，相當于通過(guo)圓(yuan)孔(kong)(kong)(kong)(kong)的最(zui)大(da)粒度的1.23倍。矩(ju)形(xing)篩(shai)(shai)(shai)孔(kong)(kong)(kong)(kong)以矩(ju)形(xing)的短(duan)邊(bian)作(zuo)為(wei)篩(shai)(shai)(shai)孔(kong)(kong)(kong)(kong)的名義尺(chi)寸，在這種情況下，超過(guo)篩(shai)(shai)(shai)孔(kong)(kong)(kong)(kong)尺(chi)寸的粒度，特(te)別是(shi)扁平顆(ke)(ke)粒將順著篩(shai)(shai)(shai)眼長邊(bian)透篩(shai)(shai)(shai)。還有一(yi)些(xie)不規則形(xing)狀的篩(shai)(shai)(shai)孔(kong)(kong)(kong)(kong)，如一(yi)些(xie)編織篩(shai)(shai)(shai)網。概率(lv)篩(shai)(shai)(shai)的篩(shai)(shai)(shai)孔(kong)(kong)(kong)(kong)常大(da)于分(fen)離粒度而用篩(shai)(shai)(shai)孔(kong)(kong)(kong)(kong)的投影進行(xing)計算(suan)。無論如何(he)，篩(shai)(shai)(shai)分(fen)產品的粒度是(shi)衡量粒度標準。