瀏覽次數：
1、物料性質的影(ying)響。
實(shi)際表(biao)(biao)明，圓振(zhen)動篩(shai)(shai)(shai)(shai)(shai)(shai)物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)(liao)粒(li)度小于(yu)篩(shai)(shai)(shai)(shai)(shai)(shai)孔(kong)(kong)尺(chi)(chi)(chi)寸(cun)的(de)(de)(de)3/4的(de)(de)(de)顆(ke)粒(li)容(rong)易偷(tou)過(guo)篩(shai)(shai)(shai)(shai)(shai)(shai)孔(kong)(kong)，稱為(wei)易篩(shai)(shai)(shai)(shai)(shai)(shai)粒(li)。大(da)于(yu)篩(shai)(shai)(shai)(shai)(shai)(shai)孔(kong)(kong)3/4的(de)(de)(de)顆(ke)粒(li)，因透(tou)過(guo)篩(shai)(shai)(shai)(shai)(shai)(shai)孔(kong)(kong)困(kun)難(nan)，稱為(wei)難(nan)篩(shai)(shai)(shai)(shai)(shai)(shai)粒(li)。物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)(liao)粒(li)度為(wei)篩(shai)(shai)(shai)(shai)(shai)(shai)孔(kong)(kong)尺(chi)(chi)(chi)寸(cun)的(de)(de)(de)1-1.5倍的(de)(de)(de)顆(ke)粒(li)稱為(wei)阻粒(li)。 可以(yi)增加(jia)輔助篩(shai)(shai)(shai)(shai)(shai)(shai)分的(de)(de)(de)方(fang)法，用(yong)篩(shai)(shai)(shai)(shai)(shai)(shai)孔(kong)(kong)尺(chi)(chi)(chi)寸(cun)較大(da)的(de)(de)(de)輔助篩(shai)(shai)(shai)(shai)(shai)(shai)，預先(xian)排(pai)出篩(shai)(shai)(shai)(shai)(shai)(shai)上(shang)(shang)產(chan)物(wu)(wu)(wu)過(guo)粗的(de)(de)(de)級別，然后篩(shai)(shai)(shai)(shai)(shai)(shai)分含有(you)(you)大(da)量細級別的(de)(de)(de)較細物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)(liao)。物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)(liao)顆(ke)粒(li)大(da)容(rong)許尺(chi)(chi)(chi)寸(cun)與(yu)篩(shai)(shai)(shai)(shai)(shai)(shai)孔(kong)(kong)尺(chi)(chi)(chi)寸(cun)之間的(de)(de)(de)一(yi)(yi)定(ding)比(bi)例關系沒有(you)(you)明確的(de)(de)(de)規定(ding)，水泥振(zhen)動篩(shai)(shai)(shai)(shai)(shai)(shai)一(yi)(yi)般認為(wei)大(da)顆(ke)粒(li)不應大(da)于(yu)篩(shai)(shai)(shai)(shai)(shai)(shai)孔(kong)(kong)尺(chi)(chi)(chi)寸(cun)的(de)(de)(de)2.5-4倍。 物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)(liao)中含有(you)(you)的(de)(de)(de)表(biao)(biao)面(mian)(mian)水分在一(yi)(yi)定(ding)程度內增加(jia)，黏(nian)(nian)(nian)瀉性也就增大(da)，物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)(liao)的(de)(de)(de)表(biao)(biao)面(mian)(mian)水分能使細粒(li)互(hu)相黏(nian)(nian)(nian)結(jie)(jie)成(cheng)團，并附著(zhu)在大(da)顆(ke)粒(li)上(shang)(shang)會(hui)把篩(shai)(shai)(shai)(shai)(shai)(shai)孔(kong)(kong)堵(du)住。這(zhe)些原因使篩(shai)(shai)(shai)(shai)(shai)(shai)分過(guo)程進行較難(nan)，篩(shai)(shai)(shai)(shai)(shai)(shai)分效(xiao)率(lv)將大(da)大(da)降低。 如(ru)果(guo)物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)(liao)中含有(you)(you)容(rong)易結(jie)(jie)團的(de)(de)(de)黏(nian)(nian)(nian)性物(wu)(wu)(wu)質(如(ru)黏(nian)(nian)(nian)土(tu)等)，即使在水分很(hen)少時(shi)，也會(hui)黏(nian)(nian)(nian)結(jie)(jie)成(cheng)團，使細泥混入篩(shai)(shai)(shai)(shai)(shai)(shai)上(shang)(shang)產(chan)物(wu)(wu)(wu);也會(hui)很(hen)快堵(du)塞篩(shai)(shai)(shai)(shai)(shai)(shai)孔(kong)(kong)。此時(shi)應考慮預先(xian)洗(xi)礦(kuang)。 物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)(liao)顆(ke)粒(li)形(xing)狀如(ru)果(guo)是圓形(xing)，則透(tou)過(guo)方(fang)孔(kong)(kong)和圓孔(kong)(kong)比(bi)較容(rong)易。電磁(ci)振(zhen)動篩(shai)(shai)(shai)(shai)(shai)(shai)破碎產(chan)物(wu)(wu)(wu)大(da)多(duo)是多(duo)角形(xing)，透(tou)過(guo)方(fang)孔(kong)(kong)和圓孔(kong)(kong)不如(ru)透(tou)過(guo)長方(fang)孔(kong)(kong)容(rong)易，條狀、板狀、片狀物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)(liao)難(nan)以(yi)透(tou)過(guo)方(fang)孔(kong)(kong)和圓孔(kong)(kong)，但容(rong)易透(tou)過(guo)長方(fang)孔(kong)(kong)。
2、篩(shai)(shai)(shai)分機工作(zuo)參數的(de)(de)(de)影響。主(zhu)要(yao)有(you)(you)以下(xia)(xia)6個(ge)影響因素。 ①曬面(mian)種(zhong)類。篩(shai)(shai)(shai)子的(de)(de)(de)工作(zuo)面(mian)通常有(you)(you)鋼棒、鋼絲、沖孔(kong)鋼板、橡膠、聚氨酯等。它們(men)對篩(shai)(shai)(shai)分效(xiao)率的(de)(de)(de)影響，主(zhu)要(yao)和(he)它們(men)的(de)(de)(de)有(you)(you)效(xiao)面(mian)積(ji)有(you)(you)關。此外，各(ge)種(zhong)材料(liao)的(de)(de)(de)耐(nai)磨損程度(du)也不同。 ②篩(shai)(shai)(shai)孔(kong)形狀。方形或長方形篩(shai)(shai)(shai)孔(kong)應(ying)用教好。 ③篩(shai)(shai)(shai)孔(kong)尺寸。應(ying)聯(lian)系(xi)破碎機的(de)(de)(de)工作(zuo)和(he)對產品的(de)(de)(de)要(yao)求(qiu)來選(xuan)擇(ze)。 ④篩(shai)(shai)(shai)子的(de)(de)(de)運動(dong)(dong)狀況。各(ge)種(zhong)篩(shai)(shai)(shai)子的(de)(de)(de)篩(shai)(shai)(shai)分效(xiao)率大致如下(xia)(xia)：高效(xiao)重型篩(shai)(shai)(shai)大于90%;搖(yao)動(dong)(dong)篩(shai)(shai)(shai)大于70-80%;轉筒(tong)篩(shai)(shai)(shai)60%;固定(ding)條(tiao)曬50-60%。可(ke)視情況選(xuan)擇(ze)。 ⑤篩(shai)(shai)(shai)子的(de)(de)(de)寬度(du)和(he)長度(du)。一(yi)(yi)般(ban)認為篩(shai)(shai)(shai)子的(de)(de)(de)寬度(du)和(he)長度(du)之比(bi)為1：2.5~1：3. ⑥曬面(mian)的(de)(de)(de)傾角(jiao)。振動(dong)(dong)篩(shai)(shai)(shai)的(de)(de)(de)傾角(jiao)一(yi)(yi)般(ban)在(zai)0°~20°，固定(ding)條(tiao)篩(shai)(shai)(shai)的(de)(de)(de)傾角(jiao)40°~50°。
Copyright(C)
