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影響直線振動篩篩分成效的因素有哪些?

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  影響直線振動篩篩分成效的因(yin)素有哪(na)些?

  直(zhi)線(xian)(xian)振(zhen)(zhen)動(dong)篩(shai)(shai)(shai)(shai)(shai)常在(zai)破碎制砂(sha)(sha)生產線(xian)(xian)中運用,是(shi)砂(sha)(sha)石加工流程中的(de)主要(yao)設備,它的(de)作用是(shi)篩(shai)(shai)(shai)(shai)(shai)選達到加工規范的(de)砂(sha)(sha)石骨料(liao)顆(ke)粒(li),依據直(zhi)線(xian)(xian)振(zhen)(zhen)動(dong)篩(shai)(shai)(shai)(shai)(shai)技(ji)術參數,不難發現(xian)篩(shai)(shai)(shai)(shai)(shai)眼寬度、網絲寬度、篩(shai)(shai)(shai)(shai)(shai)網表面傾斜度均是(shi)影響直(zhi)線(xian)(xian)振(zhen)(zhen)動(dong)篩(shai)(shai)(shai)(shai)(shai)篩(shai)(shai)(shai)(shai)(shai)分(fen)成效(xiao)的(de)重要(yao)因(yin)素,下面,立友機械就(jiu)這幾個(ge)原(yuan)因(yin)做具體說明。

  1、顆(ke)粒與篩眼粒形(xing)

  在生產(chan)實(shi)際中,篩(shai)分原料大的(de)圓(yuan)(yuan)柱形(xing)(顆(ke)粒(li)砂石骨料分級)或不(bu)規則顆(ke)粒(li),篩(shai)眼既有(you)圓(yuan)(yuan)形(xing)又有(you)矩形(xing),物料顆(ke)粒(li)接(jie)觸篩(shai)眼時的(de)狀(zhuang)態對(dui)顆(ke)粒(li)能(neng)(neng)否經(jing)(jing)(jing)歷(li)影響(xiang)大,如一(yi)(yi)個(ge)4×10 毫米的(de)顆(ke)粒(li)直立時能(neng)(neng)經(jing)(jing)(jing)歷(li)一(yi)(yi)個(ge)孔(kong)徑5 毫米的(de)篩(shai)眼,橫向則無(wu)法,所以,顆(ke)粒(li)經(jing)(jing)(jing)歷(li)與否擁有(you)的(de)偶然性,只能(neng)(neng)經(jing)(jing)(jing)歷(li)統計的(de)手(shou)段加以研發,通常對(dui)圓(yuan)(yuan)柱形(xing)顆(ke)粒(li),矩形(xing)篩(shai)眼經(jing)(jing)(jing)歷(li)性能(neng)(neng)很好;而(er)針對(dui)各個(ge)趨勢尺(chi)寸(cun)差(cha)別比較小的(de)不(bu)規則顆(ke)粒(li),圓(yuan)(yuan)孔(kong)的(de)經(jing)(jing)(jing)歷(li)性能(neng)(neng)很好。

  2、篩網表面開孔率(lv)

  篩網表(biao)面開孔率越(yue)大,說明(ming)性能越(yue)好(hao),保障(zhang)篩網表(biao)面力度(du)的(de)狀況下,編織(zhi)篩能比沖孔篩創取較高(gao)的(de)開孔率,因而(er)前者的(de)經歷性能優于后者,這方面當(dang)前在砂石生(sheng)產看重較少(shao),開孔率要(yao)高(gao),網孔為絲徑都有(you)的(de)影(ying)響,通常(chang)有(you)5%左右的(de)差(cha)別。

  3、物料層厚(hou)度

  運用平(ping)面篩(shai)(shai)(shai)(shai)時(shi),如經(jing)歷(li)(li)直線(xian)振(zhen)動篩(shai)(shai)(shai)(shai)篩(shai)(shai)(shai)(shai)網(wang)表(biao)面的物(wu)料(liao)(liao)(liao)(liao)(liao)層(ceng)(ceng)過(guo)(guo)厚(hou),料(liao)(liao)(liao)(liao)(liao)層(ceng)(ceng)頂部小(xiao)(xiao)顆粒經(jing)歷(li)(li)篩(shai)(shai)(shai)(shai)眼困(kun)難,會(hui)引(yin)發誤(wu)篩(shai)(shai)(shai)(shai)率(lv)上升(sheng),遜徑困(kun)擾會(hui)相比嚴重(zhong),這在(zai)原料(liao)(liao)(liao)(liao)(liao)中(zhong)將注入凈原料(liao)(liao)(liao)(liao)(liao)損耗(hao),在(zai)砂(sha)石顆粒分級中(zhong)則將減輕生(sheng)產(chan)(chan)產(chan)(chan)能(上層(ceng)(ceng)篩(shai)(shai)(shai)(shai)料(liao)(liao)(liao)(liao)(liao)層(ceng)(ceng)過(guo)(guo)厚(hou))、影(ying)響成品質量(下層(ceng)(ceng)篩(shai)(shai)(shai)(shai)料(liao)(liao)(liao)(liao)(liao)層(ceng)(ceng)過(guo)(guo)厚(hou)),料(liao)(liao)(liao)(liao)(liao)層(ceng)(ceng)過(guo)(guo)薄則篩(shai)(shai)(shai)(shai)分生(sheng)產(chan)(chan)產(chan)(chan)能太低,也不(bu)(bu)可取,合適的料(liao)(liao)(liao)(liao)(liao)層(ceng)(ceng)厚(hou)度(du)(du)(du)應經(jing)歷(li)(li)試(shi)驗,篩(shai)(shai)(shai)(shai)網(wang)表(biao)面傾斜度(du)(du)(du)小(xiao)(xiao)、篩(shai)(shai)(shai)(shai)體振(zhen)動幅度(du)(du)(du)較大(da)時(shi)料(liao)(liao)(liao)(liao)(liao)層(ceng)(ceng)可稍(shao)厚(hou),理論上,料(liao)(liao)(liao)(liao)(liao)層(ceng)(ceng)厚(hou)度(du)(du)(du)由生(sheng)產(chan)(chan)產(chan)(chan)能決定,但是實(shi)際(ji)運用中(zhong),源于(yu)篩(shai)(shai)(shai)(shai)網(wang)表(biao)面下料(liao)(liao)(liao)(liao)(liao)不(bu)(bu)均,物(wu)料(liao)(liao)(liao)(liao)(liao)可能集中(zhong)在(zai)篩(shai)(shai)(shai)(shai)網(wang)表(biao)面一側,導致局部料(liao)(liao)(liao)(liao)(liao)層(ceng)(ceng)過(guo)(guo)厚(hou)從而影(ying)響篩(shai)(shai)(shai)(shai)分成效,圓(yuan)筒篩(shai)(shai)(shai)(shai)以及(ji)圓(yuan)錐(zhui)篩(shai)(shai)(shai)(shai)存(cun)在(zai)類似困(kun)擾,當瞬(shun)間物(wu)料(liao)(liao)(liao)(liao)(liao)流量過(guo)(guo)大(da)時(shi),篩(shai)(shai)(shai)(shai)分成效一樣受到影(ying)響,不(bu)(bu)過(guo)(guo)在(zai)大(da)型砂(sha)石設備(bei)中(zhong)這兩(liang)中(zhong)設備(bei)運用較少。

  4、篩體運(yun)動狀態

  篩(shai)(shai)分(fen)流程做出(chu)的(de)(de)要條(tiao)件(jian)之一是篩(shai)(shai)選物(wu)料與篩(shai)(shai)網(wang)表(biao)(biao)面(mian)之間存(cun)在適宜的(de)(de)相對(dui)運(yun)動(dong)(dong),出(chu)現這類運(yun)動(dong)(dong)的(de)(de)方法可以是篩(shai)(shai)網(wang)表(biao)(biao)面(mian)作程度往(wang)復(fu)(fu)直(zhi)線(xian)(xian)運(yun)動(dong)(dong)(回轉)、垂直(zhi)往(wang)復(fu)(fu)直(zhi)線(xian)(xian)運(yun)動(dong)(dong)(震動(dong)(dong))或二者(zhe)的(de)(de)構成,篩(shai)(shai)體(ti)僅有程度往(wang)復(fu)(fu)運(yun)動(dong)(dong)或垂直(zhi)往(wang)復(fu)(fu)運(yun)動(dong)(dong),篩(shai)(shai)分(fen)成效都不優良,后(hou)者(zhe)源(yuan)于物(wu)料匱乏與篩(shai)(shai)網(wang)表(biao)(biao)面(mian)的(de)(de)程度相對(dui)運(yun)動(dong)(dong),容易導(dao)致料層厚薄(bo)不均,實(shi)踐表(biao)(biao)明(ming),將(jiang)二種運(yun)動(dong)(dong)結合起來(lai)的(de)(de)回轉直(zhi)線(xian)(xian)振動(dong)(dong)篩(shai)(shai)成效很(hen)好(hao)

  5、物料特征

  砂石(shi)骨料(liao)的(de)(de)粒度、濕(shi)度、摩(mo)擦特征、流動性(xing)等都與篩(shai)(shai)(shai)分(fen)(fen)流程(cheng)有關,物(wu)料(liao)顆(ke)粒粒徑差異顯著是物(wu)料(liao)組分(fen)(fen)篩(shai)(shai)(shai)分(fen)(fen)分(fen)(fen)離的(de)(de)要條件,并且(qie)這(zhe)類差異越(yue)(yue)(yue)大,篩(shai)(shai)(shai)分(fen)(fen)流程(cheng)越(yue)(yue)(yue)容易做出,砂石(shi)骨料(liao)濕(shi)度越(yue)(yue)(yue)高、內外摩(mo)擦角越(yue)(yue)(yue)大、流動性(xing)越(yue)(yue)(yue)差,其顆(ke)粒經歷(li)篩(shai)(shai)(shai)眼(yan)的(de)(de)性(xing)能就(jiu)越(yue)(yue)(yue)差,尤其是濕(shi)法建筑用砂生產中,這(zhe)個特征要留意,所以,實際運用中,要創取的(de)(de)篩(shai)(shai)(shai)分(fen)(fen)成效(xiao),應依據物(wu)料(liao)的(de)(de)具體狀況選用不(bu)一樣的(de)(de)工藝(yi)參數

  以上幾個(ge)方面(mian)直(zhi)接(jie)(jie)影(ying)響(xiang)(xiang)直(zhi)線(xian)(xian)振(zhen)動(dong)篩篩分(fen)成效,而篩分(fen)成效直(zhi)接(jie)(jie)影(ying)響(xiang)(xiang)生(sheng)產線(xian)(xian)的成品砂石料是否達到用戶規范,所以,您在(zai)選購直(zhi)線(xian)(xian)振(zhen)動(dong)篩時要多方面(mian)思(si)考上面(mian)幾個(ge)原因。

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