砂石篩介紹

  砂(sha)石(shi)(shi)篩包括圓(yuan)孔(kong)(kong)篩和(he)方(fang)孔(kong)(kong)篩兩部(bu)分(fen)，前者用(yong)厚(hou)度為1mm的(de)(de)穿成(cheng)(cheng)圓(yuan)孔(kong)(kong)的(de)(de)金(jin)屬板制(zhi)成(cheng)(cheng)，而后者則用(yong)金(jin)屬絲編成(cheng)(cheng)。石(shi)(shi)子(zi)標準(zhun)篩用(yong)厚(hou)度為2mm的(de)(de)穿成(cheng)(cheng)圓(yuan)孔(kong)(kong)的(de)(de)金(jin)屬板制(zhi)成(cheng)(cheng)。篩孔(kong)(kong)面積與篩子(zi)總面積的(de)(de)百分(fen)比稱(cheng)為篩子(zi)有(you)效面積，其(qi)變化范圍(wei)分(fen)別為34%?53%和(he)44%?65%。砂(sha)石(shi)(shi)集料粒度分(fen)級時，根據所(suo)要求的(de)(de)粒度范圍(wei)，可采用(yong)一組(zu)規格不(bu)同的(de)(de)標準(zhun)篩進(jin)行篩分(fen)。

砂石篩圖片

砂石篩原理

  砂石(shi)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)將(jiang)顆(ke)粒(li)(li)(li)大小(xiao)不(bu)(bu)同的(de)(de)(de)碎(sui)散物料群(qun),多次通過(guo)均勻布(bu)孔的(de)(de)(de)單(dan)層或(huo)多層篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)面(mian)(mian),分(fen)成(cheng)若干不(bu)(bu)同級(ji)別的(de)(de)(de)過(guo)程(cheng)(cheng)成(cheng)為(wei)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)分(fen)。大于(yu)(yu)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)孔的(de)(de)(de)顆(ke)粒(li)(li)(li)留(liu)在篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)面(mian)(mian)上,稱為(wei)該(gai)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)面(mian)(mian)的(de)(de)(de)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)上物,小(xiao)于(yu)(yu)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)孔的(de)(de)(de)顆(ke)粒(li)(li)(li)透(tou)(tou)過(guo)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)孔,稱為(wei)該(gai)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)面(mian)(mian)的(de)(de)(de)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)下(xia)(xia)物。實際的(de)(de)(de)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)分(fen)過(guo)程(cheng)(cheng)是：大量(liang)粒(li)(li)(li)度大小(xiao)不(bu)(bu)同、粗(cu)細混雜(za)的(de)(de)(de)碎(sui)散物料進入(ru)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)面(mian)(mian)后,只有(you)一部分(fen)顆(ke)粒(li)(li)(li)與篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)面(mian)(mian)接觸,由于(yu)(yu)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)箱的(de)(de)(de)振動,篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)上物料層被松散,使(shi)大顆(ke)粒(li)(li)(li)本來就存在的(de)(de)(de)間隙被進一步擴(kuo)大,小(xiao)顆(ke)粒(li)(li)(li)乘(cheng)機穿過(guo)間隙,轉移到下(xia)(xia)層或(huo)運(yun)輸機上。由于(yu)(yu)小(xiao)顆(ke)粒(li)(li)(li)間隙小(xiao),大顆(ke)粒(li)(li)(li)并不(bu)(bu)能穿過(guo)，于(yu)(yu)是原來雜(za)亂無(wu)章排(pai)列(lie)的(de)(de)(de)顆(ke)粒(li)(li)(li)群(qun)發生了分(fen)離(li)(li),即按顆(ke)粒(li)(li)(li)大小(xiao)進行(xing)了分(fen)層,形成(cheng)了小(xiao)顆(ke)粒(li)(li)(li)在下(xia)(xia),粗(cu)顆(ke)粒(li)(li)(li)居上的(de)(de)(de)排(pai)列(lie)規(gui)則。到達(da)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)面(mian)(mian)的(de)(de)(de)細顆(ke)粒(li)(li)(li),小(xiao)于(yu)(yu)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)孔者透(tou)(tou)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai),最終實現了粗(cu)、細粒(li)(li)(li)分(fen)離(li)(li),完成(cheng)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)分(fen)過(guo)程(cheng)(cheng)。然(ran)而，充(chong)分(fen)的(de)(de)(de)分(fen)離(li)(li)是沒有(you)的(de)(de)(de)，在篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)分(fen)時，一般(ban)都有(you)一部分(fen)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)下(xia)(xia)物留(liu)在篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)上物中。細粒(li)(li)(li)透(tou)(tou)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)時，雖(sui)然(ran)顆(ke)粒(li)(li)(li)都小(xiao)于(yu)(yu)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)孔，但它們透(tou)(tou)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)的(de)(de)(de)難易程(cheng)(cheng)度不(bu)(bu)同，物料和(he)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)孔尺(chi)寸相近的(de)(de)(de)顆(ke)粒(li)(li)(li)，透(tou)(tou)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)就較難，透(tou)(tou)過(guo)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)面(mian)(mian)下(xia)(xia)層的(de)(de)(de)顆(ke)粒(li)(li)(li)間隙就更難。

砂石篩優勢

  1、由于篩(shai)箱振動強(qiang)烈(lie)，減少了物料堵塞篩(shai)孔的現象(xiang)，使篩(shai)子具有較高的篩(shai)分效率和生產率。

  2、構造簡單(dan)、拆(chai)換(huan)篩面(mian)方便。

  3、篩分每噸(dun)物料所消(xiao)耗的電能(neng)少。

砂石篩使用說明

  1、建(jian)議制作(zuo)支撐架，以掛吊備用篩面。

  2、每班(ban)檢查篩格(ge)壓(ya)緊(jin)裝置，如有松動則(ze)應壓(ya)緊(jin)。

  3、經常檢查密(mi)封(feng)條，發現磨損或有(you)缺陷應該及時更換(huan)。

  4、篩(shai)格應該(gai)經(jing)常取出，定期檢查篩(shai)面是否(fou)破(po)損或(huo)凹凸(tu)不平，篩(shai)孔是否(fou)堵塞等。

  5、每(mei)班檢查進料箱的連接是(shi)否松動，如果間隙變大，引起碰撞(zhuang)，會使設備破裂。

  6、振動(dong)篩雖(sui)然無需潤滑(hua)油，每(mei)年仍(reng)然需要(yao)大修一(yi)次，更(geng)換(huan)(huan)襯板，對(dui)兩道篩面(mian)進行修整等。振動(dong)電機要(yao)拆下檢查(cha)，并給電機軸承(cheng)換(huan)(huan)油，如(ru)果軸承(cheng)損壞，則要(yao)更(geng)換(huan)(huan)

  7、每班(ban)檢查篩體支(zhi)撐裝置，觀察中(zhong)空橡(xiang)膠(jiao)(jiao)墊有無明(ming)顯變形或者(zhe)脫膠(jiao)(jiao)現(xian)象(xiang)，當(dang)橡(xiang)膠(jiao)(jiao)墊破損或者(zhe)過渡壓扁時，應同(tong)時更換兩塊(kuai)中(zhong)空橡(xiang)膠(jiao)(jiao)墊。

  砂石篩(shai)(shai)日(ri)常維護內(nei)容包括(kuo)篩(shai)(shai)子表面(mian)，振動(dong)(dong)(dong)篩(shai)(shai)特別是(shi)篩(shai)(shai)面(mian)緊固(gu)情況，振動(dong)(dong)(dong)篩(shai)(shai)松動(dong)(dong)(dong)時(shi)應及時(shi)緊固(gu)。振動(dong)(dong)(dong)篩(shai)(shai)定(ding)期清洗篩(shai)(shai)子表面(mian)，振動(dong)(dong)(dong)篩(shai)(shai)對于漆皮(pi)脫落部位應及時(shi)修(xiu)理、除銹并涂(tu)漆，對于裸露(lu)的(de)加工表面(mian)應涂(tu)以工業凡士(shi)林以防(fang)生(sheng)銹。

  砂(sha)石篩(shai)定(ding)期檢查(cha)(cha)：振(zhen)動篩(shai)定(ding)期檢查(cha)(cha)包括周檢和(he)月檢。

  砂石篩(shai)修理(li)

  1、對振(zhen)動(dong)(dong)(dong)篩(shai)(shai)篩(shai)(shai)子(zi)進行(xing)定期檢查(cha)時所發(fa)現的問題，振(zhen)動(dong)(dong)(dong)篩(shai)(shai)應進行(xing)修(xiu)理。振(zhen)動(dong)(dong)(dong)篩(shai)(shai)修(xiu)理內(nei)容包括及時調整(zheng)三角帶(dai)拉力，更(geng)換(huan)(huan)新帶(dai)，更(geng)換(huan)(huan)磨損的篩(shai)(shai)面以及縱向(xiang)墊條(tiao)，更(geng)換(huan)(huan)減振(zhen)彈(dan)簧(huang)，更(geng)換(huan)(huan)滾動(dong)(dong)(dong)軸承、傳動(dong)(dong)(dong)齒(chi)輪和密封(feng)，更(geng)換(huan)(huan)損壞的螺(luo)栓，修(xiu)理篩(shai)(shai)框構件的破損等。

  2、篩(shai)框側板(ban)(ban)及(ji)梁應(ying)避免發生(sheng)應(ying)力集中，振(zhen)(zhen)動篩(shai)因此不允許在(zai)(zai)這些構件上施以(yi)焊接。振(zhen)(zhen)動篩(shai)對于下(xia)橫梁開(kai)裂應(ying)及(ji)時(shi)更換，側板(ban)(ban)發現裂紋(wen)損傷(shang)時(shi)，應(ying)在(zai)(zai)裂紋(wen)盡頭(tou)及(ji)時(shi)鉆5mm孔(kong)，然后在(zai)(zai)開(kai)裂部位加補強(qiang)板(ban)(ban)。激(ji)振(zhen)(zhen)器的拆卸、修理(li)和裝配(pei)應(ying)由專職(zhi)人員在(zai)(zai)潔凈(jing)場(chang)所進行。

  3、振(zhen)動(dong)(dong)(dong)篩拆卸后檢(jian)(jian)查(cha)滾(gun)動(dong)(dong)(dong)軸承(cheng)磨損情況(kuang)，振(zhen)動(dong)(dong)(dong)篩檢(jian)(jian)查(cha)齒(chi)輪齒(chi)面，振(zhen)動(dong)(dong)(dong)篩檢(jian)(jian)查(cha)各(ge)部件(jian)聯接情況(kuang)，振(zhen)動(dong)(dong)(dong)篩清洗箱體中的潤滑回路使(shi)之暢通，振(zhen)動(dong)(dong)(dong)篩清除各(ge)結合面上的附(fu)著物，振(zhen)動(dong)(dong)(dong)篩更(geng)換全(quan)部密封件(jian)及(ji)其他損壞零件(jian)。