濾筒(tong)(tong)(tong)(tong)(tong)(tong)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)以濾筒(tong)(tong)(tong)(tong)(tong)(tong)作為過濾元件(jian)所組成或采用脈沖(chong)噴(pen)吹的除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)。 濾筒(tong)(tong)(tong)(tong)(tong)(tong)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)按(an)安裝(zhuang)(zhuang)方式分，可以分為斜插式，側裝(zhuang)(zhuang)式，吊裝(zhuang)(zhuang)式，上裝(zhuang)(zhuang)式。 濾筒(tong)(tong)(tong)(tong)(tong)(tong)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)按(an)濾筒(tong)(tong)(tong)(tong)(tong)(tong)材料分，可以分為長纖(xian)(xian)維聚酯濾筒(tong)(tong)(tong)(tong)(tong)(tong)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)，復合纖(xian)(xian)維濾筒(tong)(tong)(tong)(tong)(tong)(tong)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)，防(fang)靜(jing)電濾筒(tong)(tong)(tong)(tong)(tong)(tong)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)，阻(zu)燃濾筒(tong)(tong)(tong)(tong)(tong)(tong)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)，覆膜濾筒(tong)(tong)(tong)(tong)(tong)(tong)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)，納米濾筒(tong)(tong)(tong)(tong)(tong)(tong)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)等(deng)。
濾(lv)(lv)(lv)筒(tong)式除(chu)塵(chen)器早(zao)在20世(shi)紀70年(nian)代就已經在日本和(he)歐(ou)美(mei)一些國家出現(xian)(xian)，具有(you)體(ti)積小，效(xiao)率高(gao)，投資省，易維護等(deng)優點，但因(yin)其設備容量(liang)小，難組合成(cheng)(cheng)大(da)風量(liang)設備，過(guo)濾(lv)(lv)(lv)風速偏低(di)，應(ying)用范圍窄，僅(jin)在糧食、焊接等(deng)行(xing)業應(ying)用，所以多年(nian)來未能(neng)大(da)量(liang)推廣。近年(nian)來，隨著新(xin)技術、新(xin)材料不斷地(di)發展，以日本，美(mei)國的公司為(wei)代表，對除(chu)塵(chen)器的結構和(he)濾(lv)(lv)(lv)料進行(xing)了改(gai)進，使得濾(lv)(lv)(lv)筒(tong)除(chu)塵(chen)器廣泛地(di)應(ying)用于(yu)水泥、鋼鐵、電(dian)力、食品(pin)、冶金、化工等(deng)工業領(ling)域，整體(ti)容量(liang)增(zeng)加數倍，成(cheng)(cheng)為(wei)過(guo)濾(lv)(lv)(lv)面(mian)積>2000m2大(da)型除(chu)塵(chen)器（GB6719－86類），是解決傳統除(chu)塵(chen)器對超細粉(fen)塵(chen)收集難、過(guo)濾(lv)(lv)(lv)風速高(gao)、清(qing)灰效(xiao)果差(cha)、濾(lv)(lv)(lv)袋(dai)易磨損破漏、運行(xing)成(cheng)(cheng)本高(gao)的上(shang)好(hao)方案，和(he)市場上(shang)現(xian)(xian)有(you)各種袋(dai)式、靜電(dian)除(chu)塵(chen)器相比具有(you)有(you)效(xiao)過(guo)濾(lv)(lv)(lv)面(mian)積大(da)、壓差(cha)低(di)、低(di)排放(fang)、體(ti)積小、使用壽命(ming)長等(deng)特點，成(cheng)(cheng)為(wei)工業除(chu)塵(chen)器發展的新(xin)方向。
濾筒(tong)式除(chu)塵(chen)器的結構是(shi)由進風(feng)管(guan)、排風(feng)管(guan)、箱體、灰斗、清灰裝(zhuang)置、導流裝(zhuang)置、氣(qi)(qi)流分(fen)流分(fen)布板、濾筒(tong)及電(dian)控裝(zhuang)置組成，類似氣(qi)(qi)箱脈沖袋除(chu)塵(chen)結構。
濾筒(tong)在(zai)除(chu)塵器中(zhong)的布(bu)置很(hen)重要，既可以垂(chui)(chui)直布(bu)置在(zai)箱體花板上(shang)，也可以傾斜(xie)布(bu)置 在(zai)花板上(shang)，從清(qing)灰效果看，垂(chui)(chui)直布(bu)置較為(wei)合理。花板下(xia)部為(wei)過濾室(shi)，上(shang)部為(wei)氣(qi)箱脈沖室(shi)。在(zai)除(chu)塵器入口處(chu)裝有氣(qi)流分(fen)布(bu)板。
含塵(chen)氣體進(jin)入除塵(chen)器(qi)灰斗后，由(you)于氣流斷面突然擴(kuo)大及(ji)氣流分(fen)布板作(zuo)用，氣流中一部分(fen)粗大顆粒在動和慣性(xing)力作(zuo)用下沉降在灰斗；粒度細、密(mi)度小(xiao)的塵(chen)粒進(jin)入濾塵(chen)室后，通過(guo)布朗擴(kuo)散和篩(shai)濾等組合效應(ying)，使(shi)粉塵(chen)沉積(ji)在濾料表面上，凈化后的氣體進(jin)入凈氣室由(you)排(pai)氣管經風機(ji)排(pai)出。
濾(lv)筒(tong)(tong)式除(chu)塵(chen)器的(de)阻力隨濾(lv)料(liao)表面(mian)粉(fen)塵(chen)層厚度的(de)增加(jia)而增大(da)。阻力達到(dao)某一(yi)(yi)規定(ding)值時(shi)進行清(qing)(qing)灰(hui)。此時(shi)PLC程序控制脈(mo)沖閥(fa)的(de)啟閉(bi)，首先一(yi)(yi)分(fen)室提升(sheng)閥(fa)關(guan)閉(bi)，將過濾(lv)氣(qi)流截斷(duan)，然后電磁(ci)(ci)脈(mo)沖閥(fa)開啟，壓(ya)縮空(kong)氣(qi)以及短(duan)的(de)時(shi)間在上(shang)箱體內迅速膨脹(zhang)，涌入(ru)濾(lv)筒(tong)(tong)，使濾(lv)筒(tong)(tong)膨脹(zhang)變形產生振動，并在逆向氣(qi)流沖刷的(de)作用下，附著在濾(lv)袋外表面(mian)上(shang)的(de)粉(fen)塵(chen)被剝離落入(ru)灰(hui)斗(dou)中。清(qing)(qing)灰(hui)完畢后，電磁(ci)(ci)脈(mo)沖閥(fa)關(guan)閉(bi)，提升(sheng)閥(fa)打開，該室又恢復過濾(lv)狀(zhuang)態。清(qing)(qing)灰(hui)各室依次(ci)進行，從(cong)一(yi)(yi)室清(qing)(qing)灰(hui)開始至下一(yi)(yi)次(ci)清(qing)(qing)灰(hui)開始為一(yi)(yi)個清(qing)(qing)灰(hui)周期。脫落的(de)粉(fen)塵(chen)掉入(ru)灰(hui)斗(dou)內通(tong)過缷(xie)灰(hui)閥(fa)排出。
在(zai)(zai)此(ci)過程中必須定期對(dui)濾筒進行更(geng)換和(he)清(qing)洗，以確(que)(que)保過濾效果和(he)精度，因為在(zai)(zai)過濾過程中粉塵除了(le)被阻(zu)隔(ge)外還有部分會沉積于濾料表面，增大阻(zu)力，所以一般(ban)的正確(que)(que)更(geng)換時(shi)間是三至五個(ge)月！
