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篩分機篩板和篩孔的形狀

發布時(shi)間:2023/9/11 17:14:41 瀏覽:

篩(shai)(shai)分機篩(shai)(shai)板(ban)和(he)篩(shai)(shai)孔的形狀:

篩(shai)(shai)(shai)(shai)分粒度在25 mm以上(shang),一般用沖(chong)孔或鉆(zhan)孔篩(shai)(shai)(shai)(shai)板,孔眼多數采用圓孔,菱(ling)形(xing)(xing)排列。25 mm以下(xia)可(ke)(ke)(ke)用編(bian)織篩(shai)(shai)(shai)(shai)網(wang)(wang),編(bian)織篩(shai)(shai)(shai)(shai)網(wang)(wang)為方孔。25 mm的篩(shai)(shai)(shai)(shai)孔,可(ke)(ke)(ke)以用沖(chong)孔篩(shai)(shai)(shai)(shai)板,或編(bian)織篩(shai)(shai)(shai)(shai)網(wang)(wang),編(bian)織篩(shai)(shai)(shai)(shai)網(wang)(wang)應防止篩(shai)(shai)(shai)(shai)條(tiao)(tiao)滑動(dong),篩(shai)(shai)(shai)(shai)孔變形(xing)(xing)。對于1 mm以下(xia)篩(shai)(shai)(shai)(shai)分(包括脫泥、脫水、脫介)采用條(tiao)(tiao)縫篩(shai)(shai)(shai)(shai)板0.5 mm以下(xia)的可(ke)(ke)(ke)以用條(tiao)(tiao)縫篩(shai)(shai)(shai)(shai)板(用螺桿穿篩(shai)(shai)(shai)(shai)條(tiao)(tiao)上(shang)圓環(huan)或焊接的)或尼龍(long)篩(shai)(shai)(shai)(shai)網(wang)(wang)。不論是篩(shai)(shai)(shai)(shai)板或篩(shai)(shai)(shai)(shai)網(wang)(wang),本(ben)身(shen)須繃緊(jin),并(bing)和篩(shai)(shai)(shai)(shai)箱緊(jin)固,這是十分重要(yao)的。既可(ke)(ke)(ke)以延(yan)長篩(shai)(shai)(shai)(shai)板、篩(shai)(shai)(shai)(shai)網(wang)(wang)、篩(shai)(shai)(shai)(shai)箱的壽命,提高(gao)篩(shai)(shai)(shai)(shai)分效(xiao)率,而且可(ke)(ke)(ke)以減輕噪音。

對于50 mm以上的篩(shai)板,經常由鋼筋(jin)或輕軌制成。尤其是(shi)固定篩(shai)使用舊(jiu)鋼軌更是(shi)合適。棒形篩(shai)條都制成楔(xie)形的,上寬下窄,便(bian)于物(wu)料通過(guo)。

圓(yuan)形(xing)(xing)篩(shai)(shai)孔(kong)(kong),以圓(yuan)的(de)(de)(de)(de)(de)(de)直(zhi)徑標(biao)明篩(shai)(shai)孔(kong)(kong)的(de)(de)(de)(de)(de)(de)大(da)(da)(da)(da)小,能保(bao)證通過(guo)的(de)(de)(de)(de)(de)(de)粒(li)(li)度(du)(du)都小于(yu)(yu)(yu)篩(shai)(shai)孔(kong)(kong)的(de)(de)(de)(de)(de)(de)尺寸(cun),其(qi)篩(shai)(shai)下(xia)產(chan)品基本不含大(da)(da)(da)(da)于(yu)(yu)(yu)篩(shai)(shai)孔(kong)(kong)的(de)(de)(de)(de)(de)(de)大(da)(da)(da)(da)小,但天(tian)上(shang)石麟形(xing)(xing)的(de)(de)(de)(de)(de)(de)對角線是邊長的(de)(de)(de)(de)(de)(de)1.414倍,有的(de)(de)(de)(de)(de)(de)資(zi)料認為通過(guo)方孔(kong)(kong)的(de)(de)(de)(de)(de)(de)最大(da)(da)(da)(da)顆粒(li)(li),相當于(yu)(yu)(yu)通過(guo)圓(yuan)孔(kong)(kong)的(de)(de)(de)(de)(de)(de)最大(da)(da)(da)(da)粒(li)(li)度(du)(du)的(de)(de)(de)(de)(de)(de)1.23倍。矩形(xing)(xing)篩(shai)(shai)孔(kong)(kong)以矩形(xing)(xing)的(de)(de)(de)(de)(de)(de)短邊作為篩(shai)(shai)孔(kong)(kong)的(de)(de)(de)(de)(de)(de)名(ming)義(yi)尺寸(cun),在(zai)這種(zhong)情況下(xia),超(chao)過(guo)篩(shai)(shai)孔(kong)(kong)尺寸(cun)的(de)(de)(de)(de)(de)(de)粒(li)(li)度(du)(du),特別(bie)是扁平(ping)顆粒(li)(li)將(jiang)順著篩(shai)(shai)眼長邊透篩(shai)(shai)。還有一(yi)些不規則形(xing)(xing)狀(zhuang)的(de)(de)(de)(de)(de)(de)篩(shai)(shai)孔(kong)(kong),如一(yi)些編(bian)織篩(shai)(shai)網(wang)。概率篩(shai)(shai)的(de)(de)(de)(de)(de)(de)篩(shai)(shai)孔(kong)(kong)常大(da)(da)(da)(da)于(yu)(yu)(yu)分離粒(li)(li)度(du)(du)而用篩(shai)(shai)孔(kong)(kong)的(de)(de)(de)(de)(de)(de)投影(ying)進行計算。無(wu)論如何,篩(shai)(shai)分產(chan)品的(de)(de)(de)(de)(de)(de)粒(li)(li)度(du)(du)是衡量粒(li)(li)度(du)(du)標(biao)準。

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