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  振动筛给料机配合使用能让筛分效果提高10%左右(振动给料机选型)

  振动筛给料机配合使用(yong)能让筛分(fen)效果提高10%左右

  振(zhen)动筛(shai)(shai)给(ji)料(liao)(liao)机筛(shai)(shai)分(fen)(fen)是矿(kuang)山、化(hua)工厂(chang)、水泥厂(chang)等(deng)生产(chan)中(zhong)至关(guan)重要(yao)的(de)环节，筛(shai)(shai)分(fen)(fen)效率指实际得到的(de)筛(shai)(shai)分(fen)(fen)产(chan)物中(zhong)与给(ji)料(liao)(liao)中(zhong)所含小(xiao)于筛(shai)(shai)孔(kong)(kong)的(de)物料(liao)(liao)质量之(zhi)比(bi)，筛(shai)(shai)分(fen)(fen)效率直(zhi)接影响(xiang)着生产(chan)效益。粒(li)(li)度组成含易(yi)(yi)筛(shai)(shai)粒(li)(li)越(yue)(yue)多，物料(liao)(liao)越(yue)(yue)容易(yi)(yi)筛(shai)(shai)分(fen)(fen)，反(fan)之(zhi)物料(liao)(liao)越(yue)(yue)难筛(shai)(shai)分(fen)(fen)，粒(li)(li)径(jing)d=1～1.5a(a为筛(shai)(shai)孔(kong)(kong)尺寸(cun) )的(de)颗粒(li)(li)易(yi)(yi)卡在(zai)振(zhen)动筛(shai)(shai)筛(shai)(shai)孔(kong)(kong)中(zhong)，称阻碍粒(li)(li)，影响(xiang)物料(liao)(liao)通(tong)过筛(shai)(shai)孔(kong)(kong)。因此物料(liao)(liao)含难筛(shai)(shai)粒(li)(li)、阻碍粒(li)(li)越(yue)(yue)多，筛(shai)(shai)分(fen)(fen)效率越(yue)(yue)低。

  颗(ke)粒形(xing)状(zhuang)为球形(xing)的颗(ke)粒易通(tong)过方(fang)孔和圆(yuan)孔振(zhen)动(dong)筛(shai)(shai)(shai)，条形(xing)、片状(zhuang)以及多角形(xing)物(wu)料较(jiao)(jiao)难(nan)通(tong)过方(fang)孔和圆(yuan)孔筛(shai)(shai)(shai)，但较(jiao)(jiao)易通(tong)过长(zhang)方(fang)形(xing)孔振(zhen)动(dong)筛(shai)(shai)(shai)。含水(shui)量。干法筛(shai)(shai)(shai)分(fen)时，物(wu)料含水(shui)率(lv)高及湿润性(xing)与(yu)(yu)粘附性(xing)越好(hao)的物(wu)料越容(rong)易凝(ning)聚(ju)、结块，堵塞筛(shai)(shai)(shai)孔，使(shi)筛(shai)(shai)(shai)分(fen)效率(lv)大大降(jiang)低(di)。堆积密度。在物(wu)料堆积密度较(jiao)(jiao)大的情况下，振(zhen)动(dong)筛(shai)(shai)(shai)筛(shai)(shai)(shai)分(fen)能(neng)力与(yu)(yu)堆积密度成正比关系。

  开孔率。振(zhen)动(dong)筛(shai)(shai)(shai)(shai)给料(liao)机(ji)筛(shai)(shai)(shai)(shai)孔面(mian)(mian)积与筛(shai)(shai)(shai)(shai)面(mian)(mian)面(mian)(mian)积的比值称(cheng)为开孔率。开孔率大(da)的筛(shai)(shai)(shai)(shai)面(mian)(mian)筛(shai)(shai)(shai)(shai)分(fen)(fen)效率高、生产(chan)能(neng)力大(da)，但(dan)筛(shai)(shai)(shai)(shai)面(mian)(mian)强(qiang)度低、寿命(ming)短。筛(shai)(shai)(shai)(shai)孔形(xing)状。筛(shai)(shai)(shai)(shai)孔形(xing)状不同(tong)，物(wu)料(liao)的通(tong)过(guo)能(neng)力相(xiang)差很(hen)大(da)。在(zai)选择振(zhen)动(dong)筛(shai)(shai)(shai)(shai)筛(shai)(shai)(shai)(shai)孔型式时，应(ying)与物(wu)料(liao)的颗粒(li)形(xing)状相(xiang)适(shi)应(ying)。筛(shai)(shai)(shai)(shai)面(mian)(mian)尺寸。筛(shai)(shai)(shai)(shai)面(mian)(mian)的长宽(kuan)比过(guo)大(da)过(guo)小(xiao)时，都会使筛(shai)(shai)(shai)(shai)分(fen)(fen)效率降低。振(zhen)动(dong)筛(shai)(shai)(shai)(shai)筛(shai)(shai)(shai)(shai)面(mian)(mian)的长宽(kuan)比应(ying)在(zai)合适(shi)范围内(nei)，一(yi)般(ban)(ban)为 2.5～3。筛(shai)(shai)(shai)(shai)面(mian)(mian)倾(qing)(qing)(qing)角。倾(qing)(qing)(qing)角过(guo)小(xiao)，生产(chan)能(neng)力低;倾(qing)(qing)(qing)角过(guo)大(da)，筛(shai)(shai)(shai)(shai)分(fen)(fen)效率低。振(zhen)动(dong)筛(shai)(shai)(shai)(shai)倾(qing)(qing)(qing)角一(yi)般(ban)(ban)为0°～ 25°，固(gu)定(ding)筛(shai)(shai)(shai)(shai)倾(qing)(qing)(qing)角一(yi)般(ban)(ban)为 40°～ 45°。