濾(lv)(lv)(lv)(lv)(lv)(lv)筒(tong)(tong)(tong)(tong)(tong)(tong)除(chu)(chu)塵(chen)器(qi)(qi)以濾(lv)(lv)(lv)(lv)(lv)(lv)筒(tong)(tong)(tong)(tong)(tong)(tong)作(zuo)為過濾(lv)(lv)(lv)(lv)(lv)(lv)元件(jian)所(suo)組成(cheng)或采(cai)用脈(mo)沖噴吹的除(chu)(chu)塵(chen)器(qi)(qi)。 濾(lv)(lv)(lv)(lv)(lv)(lv)筒(tong)(tong)(tong)(tong)(tong)(tong)除(chu)(chu)塵(chen)器(qi)(qi)按安(an)裝方式分(fen)，可以分(fen)為斜插式，側裝式，吊(diao)裝式，上裝式。 濾(lv)(lv)(lv)(lv)(lv)(lv)筒(tong)(tong)(tong)(tong)(tong)(tong)除(chu)(chu)塵(chen)器(qi)(qi)按濾(lv)(lv)(lv)(lv)(lv)(lv)筒(tong)(tong)(tong)(tong)(tong)(tong)材料分(fen)，可以分(fen)為長纖維聚(ju)酯濾(lv)(lv)(lv)(lv)(lv)(lv)筒(tong)(tong)(tong)(tong)(tong)(tong)除(chu)(chu)塵(chen)器(qi)(qi)，復合纖維濾(lv)(lv)(lv)(lv)(lv)(lv)筒(tong)(tong)(tong)(tong)(tong)(tong)除(chu)(chu)塵(chen)器(qi)(qi)，防靜(jing)電濾(lv)(lv)(lv)(lv)(lv)(lv)筒(tong)(tong)(tong)(tong)(tong)(tong)除(chu)(chu)塵(chen)器(qi)(qi)，阻燃濾(lv)(lv)(lv)(lv)(lv)(lv)筒(tong)(tong)(tong)(tong)(tong)(tong)除(chu)(chu)塵(chen)器(qi)(qi)，覆膜濾(lv)(lv)(lv)(lv)(lv)(lv)筒(tong)(tong)(tong)(tong)(tong)(tong)除(chu)(chu)塵(chen)器(qi)(qi)，納米濾(lv)(lv)(lv)(lv)(lv)(lv)筒(tong)(tong)(tong)(tong)(tong)(tong)除(chu)(chu)塵(chen)器(qi)(qi)等。
濾(lv)筒式除(chu)(chu)塵(chen)(chen)器(qi)早(zao)在20世紀70年代就已經在日(ri)本(ben)和(he)歐(ou)美(mei)一些(xie)國家出現，具有(you)體積(ji)小(xiao)，效率(lv)高，投資省(sheng)，易維(wei)護等優點，但因其(qi)設備(bei)容(rong)量(liang)小(xiao)，難組合成(cheng)大(da)風量(liang)設備(bei)，過濾(lv)風速(su)偏低，應(ying)用(yong)范(fan)圍窄，僅在糧(liang)食、焊(han)接等行(xing)業(ye)(ye)應(ying)用(yong)，所(suo)以(yi)多年來未能大(da)量(liang)推廣。近(jin)年來，隨著新(xin)技(ji)術(shu)、新(xin)材(cai)料(liao)不斷(duan)地發(fa)(fa)展，以(yi)日(ri)本(ben)，美(mei)國的(de)公司為代表，對除(chu)(chu)塵(chen)(chen)器(qi)的(de)結構和(he)濾(lv)料(liao)進(jin)行(xing)了改進(jin)，使得濾(lv)筒除(chu)(chu)塵(chen)(chen)器(qi)廣泛(fan)地應(ying)用(yong)于水(shui)泥、鋼鐵(tie)、電(dian)力、食品、冶(ye)金、化工等工業(ye)(ye)領域(yu)，整體容(rong)量(liang)增加數倍，成(cheng)為過濾(lv)面積(ji)>2000m2大(da)型除(chu)(chu)塵(chen)(chen)器(qi)（GB6719－86類），是解決傳(chuan)統除(chu)(chu)塵(chen)(chen)器(qi)對超(chao)細粉塵(chen)(chen)收集難、過濾(lv)風速(su)高、清灰效果(guo)差、濾(lv)袋易磨(mo)損破漏、運行(xing)成(cheng)本(ben)高的(de)上(shang)好方案，和(he)市(shi)場(chang)上(shang)現有(you)各種袋式、靜電(dian)除(chu)(chu)塵(chen)(chen)器(qi)相比具有(you)有(you)效過濾(lv)面積(ji)大(da)、壓(ya)差低、低排放、體積(ji)小(xiao)、使用(yong)壽命長等特(te)點，成(cheng)為工業(ye)(ye)除(chu)(chu)塵(chen)(chen)器(qi)發(fa)(fa)展的(de)新(xin)方向。
濾筒(tong)式除(chu)塵器的結構(gou)是由進(jin)風(feng)管(guan)、排風(feng)管(guan)、箱(xiang)體、灰斗、清(qing)灰裝(zhuang)(zhuang)置、導(dao)流(liu)裝(zhuang)(zhuang)置、氣流(liu)分流(liu)分布板、濾筒(tong)及電控裝(zhuang)(zhuang)置組成，類似氣箱(xiang)脈沖(chong)袋(dai)除(chu)塵結構(gou)。
濾(lv)筒(tong)在除(chu)塵器(qi)(qi)中的布(bu)置(zhi)很重要，既可以(yi)垂直布(bu)置(zhi)在箱體花(hua)板(ban)(ban)上，也(ye)可以(yi)傾斜布(bu)置(zhi) 在花(hua)板(ban)(ban)上，從清(qing)灰效果看，垂直布(bu)置(zhi)較(jiao)為合理。花(hua)板(ban)(ban)下部為過(guo)濾(lv)室(shi)，上部為氣(qi)箱脈沖室(shi)。在除(chu)塵器(qi)(qi)入(ru)口處裝有(you)氣(qi)流(liu)分布(bu)板(ban)(ban)。
含塵氣(qi)體(ti)進(jin)入除(chu)塵器灰斗(dou)后，由于氣(qi)流(liu)(liu)斷面(mian)突然(ran)擴(kuo)(kuo)大及氣(qi)流(liu)(liu)分(fen)布(bu)板作用，氣(qi)流(liu)(liu)中一部分(fen)粗大顆粒(li)在動(dong)和(he)慣性力(li)作用下沉降在灰斗(dou)；粒(li)度(du)細、密(mi)度(du)小的(de)(de)塵粒(li)進(jin)入濾塵室后，通過布(bu)朗擴(kuo)(kuo)散和(he)篩濾等組合效應，使(shi)粉塵沉積在濾料表面(mian)上，凈化后的(de)(de)氣(qi)體(ti)進(jin)入凈氣(qi)室由排氣(qi)管經(jing)風機排出。
濾(lv)(lv)筒式除塵(chen)(chen)(chen)器的(de)(de)阻力(li)(li)隨濾(lv)(lv)料表面粉(fen)塵(chen)(chen)(chen)層厚度(du)的(de)(de)增加(jia)而增大。阻力(li)(li)達到某一規定(ding)值時(shi)(shi)進(jin)行(xing)清(qing)(qing)灰(hui)(hui)(hui)。此時(shi)(shi)PLC程序控制脈(mo)沖閥(fa)(fa)(fa)(fa)的(de)(de)啟閉(bi)，首先一分室(shi)提升閥(fa)(fa)(fa)(fa)關閉(bi)，將過(guo)濾(lv)(lv)氣(qi)流截斷，然后電磁(ci)脈(mo)沖閥(fa)(fa)(fa)(fa)開(kai)(kai)啟，壓縮(suo)空(kong)氣(qi)以及短的(de)(de)時(shi)(shi)間在上箱體內(nei)迅速膨(peng)脹，涌入濾(lv)(lv)筒，使濾(lv)(lv)筒膨(peng)脹變(bian)形產(chan)生振動，并在逆向氣(qi)流沖刷的(de)(de)作(zuo)用下(xia)，附(fu)著(zhu)在濾(lv)(lv)袋外表面上的(de)(de)粉(fen)塵(chen)(chen)(chen)被(bei)剝離落入灰(hui)(hui)(hui)斗中。清(qing)(qing)灰(hui)(hui)(hui)完畢(bi)后，電磁(ci)脈(mo)沖閥(fa)(fa)(fa)(fa)關閉(bi)，提升閥(fa)(fa)(fa)(fa)打(da)開(kai)(kai)，該室(shi)又恢復過(guo)濾(lv)(lv)狀態。清(qing)(qing)灰(hui)(hui)(hui)各室(shi)依次進(jin)行(xing)，從一室(shi)清(qing)(qing)灰(hui)(hui)(hui)開(kai)(kai)始至下(xia)一次清(qing)(qing)灰(hui)(hui)(hui)開(kai)(kai)始為(wei)一個清(qing)(qing)灰(hui)(hui)(hui)周期。脫落的(de)(de)粉(fen)塵(chen)(chen)(chen)掉(diao)入灰(hui)(hui)(hui)斗內(nei)通過(guo)缷灰(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)排出。
在此過(guo)程中(zhong)必須(xu)定期對濾(lv)(lv)筒進行更換和(he)清洗，以確(que)保過(guo)濾(lv)(lv)效果和(he)精度，因為在過(guo)濾(lv)(lv)過(guo)程中(zhong)粉塵(chen)除了被阻(zu)隔外還有部(bu)分會(hui)沉(chen)積于濾(lv)(lv)料(liao)表面，增大(da)阻(zu)力，所以一般的正確(que)更換時間是三至(zhi)五個月！
