食品(pin)廠采用的(de)直(zhi)(zhi)線振(zhen)動(dong)篩(shai)(shai)，按其(qi)篩(shai)(shai)面(mian)(mian)運動(dong)特性可(ke)以(yi)(yi)分(fen)為：篩(shai)(shai)面(mian)(mian)作(zuo)強烈(lie)振(zhen)動(dong)的(de)直(zhi)(zhi)線振(zhen)動(dong)篩(shai)(shai)和篩(shai)(shai)面(mian)(mian)固(gu)定(ding)不(bu)動(dong)的(de)固(gu)定(ding)篩(shai)(shai)。固(gu)定(ding)篩(shai)(shai)篩(shai)(shai)面(mian)(mian)固(gu)定(ding)不(bu)動(dong)，礦(kuang)粒平(ping)行篩(shai)(shai)面(mian)(mian)運動(dong)，篩(shai)(shai)分(fen)效(xiao)率(lv)很低(di)，而(er)直(zhi)(zhi)線振(zhen)動(dong)篩(shai)(shai)由于篩(shai)(shai)面(mian)(mian)強烈(lie)振(zhen)動(dong)，而(er)且(qie)振(zhen)動(dong)頻率(lv)較高，食品(pin)篩(shai)(shai)分(fen)物(wu)料在篩(shai)(shai)面(mian)(mian)上以(yi)(yi)接(jie)近于垂(chui)直(zhi)(zhi)篩(shai)(shai)孔的(de)方向被抖(dou)動(dong)，所以(yi)(yi)篩(shai)(shai)分(fen)效(xiao)率(lv)最高。

      篩(shai)(shai)(shai)面(mian)的傾角(jiao)，一般(ban)情況下，直(zhi)(zhi)線振(zhen)動篩(shai)(shai)(shai)是傾斜安裝(zhuang)的，以便于排(pai)出(chu)(chu)篩(shai)(shai)(shai)上物料(liao)(liao)。傾角(jiao)大小(xiao)要(yao)合適，傾角(jiao)過小(xiao)，物料(liao)(liao)在(zai)篩(shai)(shai)(shai)面(mian)上運動速度太慢，雖然篩(shai)(shai)(shai)分(fen)效率(lv)高(gao)，但直(zhi)(zhi)線振(zhen)動篩(shai)(shai)(shai)的生(sheng)產(chan)率(lv)減少；反之(zhi)，傾角(jiao)太大，物料(liao)(liao)排(pai)出(chu)(chu)太快，篩(shai)(shai)(shai)分(fen)效率(lv)降低。故篩(shai)(shai)(shai)面(mian)的傾角(jiao)要(yao)適當(dang)。

      篩(shai)(shai)(shai)(shai)(shai)(shai)面(mian)(mian)的(de)寬(kuan)度(du)(du)和長度(du)(du)，對(dui)一定(ding)的(de)物(wu)料(liao)，生(sheng)產(chan)率(lv)主要(yao)取決(jue)于篩(shai)(shai)(shai)(shai)(shai)(shai)面(mian)(mian)寬(kuan)度(du)(du)，篩(shai)(shai)(shai)(shai)(shai)(shai)分(fen)(fen)效率(lv)主要(yao)取決(jue)于篩(shai)(shai)(shai)(shai)(shai)(shai)面(mian)(mian)長度(du)(du)。在(zai)直線振動(dong)篩(shai)(shai)(shai)(shai)(shai)(shai)生(sheng)產(chan)率(lv)及物(wu)料(liao)沿篩(shai)(shai)(shai)(shai)(shai)(shai)面(mian)(mian)運動(dong)速度(du)(du)恒(heng)定(ding)的(de)情況下，篩(shai)(shai)(shai)(shai)(shai)(shai)面(mian)(mian)寬(kuan)度(du)(du)越大(da)，料(liao)層(ceng)厚(hou)(hou)度(du)(du)將越薄；長度(du)(du)越大(da)，篩(shai)(shai)(shai)(shai)(shai)(shai)分(fen)(fen)時(shi)間(jian)(jian)越長。料(liao)層(ceng)厚(hou)(hou)度(du)(du)減少及篩(shai)(shai)(shai)(shai)(shai)(shai)分(fen)(fen)時(shi)間(jian)(jian)加(jia)長都有利于提高篩(shai)(shai)(shai)(shai)(shai)(shai)分(fen)(fen)效率(lv)。當篩(shai)(shai)(shai)(shai)(shai)(shai)面(mian)(mian)窄而(er)長時(shi)，篩(shai)(shai)(shai)(shai)(shai)(shai)面(mian)(mian)上物(wu)料(liao)層(ceng)厚(hou)(hou)度(du)(du)增大(da)，使細粒(li)難以接近篩(shai)(shai)(shai)(shai)(shai)(shai)面(mian)(mian)和透過(guo)(guo)篩(shai)(shai)(shai)(shai)(shai)(shai)孔(kong)，給礦量和篩(shai)(shai)(shai)(shai)(shai)(shai)分(fen)(fen)效率(lv)降(jiang)(jiang)低；反(fan)之，篩(shai)(shai)(shai)(shai)(shai)(shai)面(mian)(mian)寬(kuan)而(er)短時(shi)，篩(shai)(shai)(shai)(shai)(shai)(shai)面(mian)(mian)上物(wu)料(liao)層(ceng)厚(hou)(hou)度(du)(du)減少，使細粒(li)易于通過(guo)(guo)篩(shai)(shai)(shai)(shai)(shai)(shai)孔(kong)，但此時(shi)顆粒(li)在(zai)篩(shai)(shai)(shai)(shai)(shai)(shai)面(mian)(mian)上停留時(shi)間(jian)(jian)短促，通過(guo)(guo)篩(shai)(shai)(shai)(shai)(shai)(shai)孔(kong)的(de)概率(lv)減少，因此篩(shai)(shai)(shai)(shai)(shai)(shai)分(fen)(fen)效率(lv)也會(hui)降(jiang)(jiang)低。通常(chang)篩(shai)(shai)(shai)(shai)(shai)(shai)面(mian)(mian)的(de)長度(du)(du)與寬(kuan)度(du)(du)比值為(wei)2～3。

      同一性質(zhi)的(de)(de)直(zhi)線振動篩的(de)(de)篩分效率(lv)又隨篩面(mian)運(yun)(yun)動強度(du)(du)的(de)(de)不同而有差別(bie)，篩面(mian)運(yun)(yun)動強度(du)(du)過(guo)大或(huo)過(guo)小都不利于細粒(li)透過(guo)篩孔。

我們鼎森生(sheng)產的直(zhi)線篩(shai)具有(you)耗能低、產量(liang)高、結構簡單(dan)、易維修、全封(feng)閉結構，無(wu)粉塵溢散(san)，自動排料(liao)。可對粉狀、顆粒狀物料(liao)的篩(shai)選和分級(ji)，廣泛(fan)應(ying)用于塑料(liao)、磨料(liao)、化工、醫藥、建材、糧(liang)食(shi)、炭(tan)素、化肥等行(xing)業。