濾(lv)(lv)(lv)(lv)(lv)筒(tong)(tong)(tong)除(chu)塵(chen)(chen)器(qi)(qi)(qi)以(yi)(yi)濾(lv)(lv)(lv)(lv)(lv)筒(tong)(tong)(tong)作為過濾(lv)(lv)(lv)(lv)(lv)元件所組(zu)成(cheng)或采用脈沖(chong)噴吹的除(chu)塵(chen)(chen)器(qi)(qi)(qi)。 濾(lv)(lv)(lv)(lv)(lv)筒(tong)(tong)(tong)除(chu)塵(chen)(chen)器(qi)(qi)(qi)按(an)(an)安裝方式(shi)(shi)分，可(ke)以(yi)(yi)分為斜插式(shi)(shi)，側(ce)裝式(shi)(shi)，吊裝式(shi)(shi)，上(shang)裝式(shi)(shi)。 濾(lv)(lv)(lv)(lv)(lv)筒(tong)(tong)(tong)除(chu)塵(chen)(chen)器(qi)(qi)(qi)按(an)(an)濾(lv)(lv)(lv)(lv)(lv)筒(tong)(tong)(tong)材料分，可(ke)以(yi)(yi)分為長纖維(wei)聚(ju)酯濾(lv)(lv)(lv)(lv)(lv)筒(tong)(tong)(tong)除(chu)塵(chen)(chen)器(qi)(qi)(qi)，復合纖維(wei)濾(lv)(lv)(lv)(lv)(lv)筒(tong)(tong)(tong)除(chu)塵(chen)(chen)器(qi)(qi)(qi)，防靜電濾(lv)(lv)(lv)(lv)(lv)筒(tong)(tong)(tong)除(chu)塵(chen)(chen)器(qi)(qi)(qi)，阻燃濾(lv)(lv)(lv)(lv)(lv)筒(tong)(tong)(tong)除(chu)塵(chen)(chen)器(qi)(qi)(qi)，覆膜濾(lv)(lv)(lv)(lv)(lv)筒(tong)(tong)(tong)除(chu)塵(chen)(chen)器(qi)(qi)(qi)，納米濾(lv)(lv)(lv)(lv)(lv)筒(tong)(tong)(tong)除(chu)塵(chen)(chen)器(qi)(qi)(qi)等。
濾(lv)(lv)筒(tong)式(shi)除(chu)(chu)(chu)塵(chen)(chen)(chen)器(qi)(qi)早(zao)在(zai)20世紀(ji)70年(nian)代就已經在(zai)日本(ben)和(he)歐美(mei)一些國(guo)家出現(xian)，具(ju)有(you)體(ti)積小(xiao)，效率(lv)高，投資(zi)省，易(yi)維護等(deng)(deng)優(you)點(dian)，但因其(qi)設(she)備容(rong)(rong)量(liang)(liang)小(xiao)，難組合成(cheng)大風(feng)量(liang)(liang)設(she)備，過(guo)濾(lv)(lv)風(feng)速(su)(su)偏低，應(ying)用(yong)范(fan)圍窄，僅在(zai)糧食、焊(han)接等(deng)(deng)行(xing)業(ye)應(ying)用(yong)，所以多年(nian)來未(wei)能大量(liang)(liang)推(tui)廣。近年(nian)來，隨著新技術、新材料不(bu)斷地發(fa)展，以日本(ben)，美(mei)國(guo)的公(gong)司為代表，對除(chu)(chu)(chu)塵(chen)(chen)(chen)器(qi)(qi)的結構和(he)濾(lv)(lv)料進行(xing)了改進，使得濾(lv)(lv)筒(tong)除(chu)(chu)(chu)塵(chen)(chen)(chen)器(qi)(qi)廣泛地應(ying)用(yong)于水泥、鋼鐵、電(dian)力、食品、冶(ye)金、化工(gong)等(deng)(deng)工(gong)業(ye)領域(yu)，整體(ti)容(rong)(rong)量(liang)(liang)增加數倍，成(cheng)為過(guo)濾(lv)(lv)面積>2000m2大型除(chu)(chu)(chu)塵(chen)(chen)(chen)器(qi)(qi)（GB6719－86類），是解決傳統除(chu)(chu)(chu)塵(chen)(chen)(chen)器(qi)(qi)對超細粉塵(chen)(chen)(chen)收集難、過(guo)濾(lv)(lv)風(feng)速(su)(su)高、清灰(hui)效果差、濾(lv)(lv)袋(dai)易(yi)磨損破漏、運行(xing)成(cheng)本(ben)高的上好(hao)方(fang)案，和(he)市(shi)場上現(xian)有(you)各種(zhong)袋(dai)式(shi)、靜電(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)器(qi)(qi)相比具(ju)有(you)有(you)效過(guo)濾(lv)(lv)面積大、壓差低、低排放、體(ti)積小(xiao)、使用(yong)壽命長(chang)等(deng)(deng)特點(dian)，成(cheng)為工(gong)業(ye)除(chu)(chu)(chu)塵(chen)(chen)(chen)器(qi)(qi)發(fa)展的新方(fang)向。
濾(lv)筒式(shi)除(chu)塵器(qi)的(de)結構(gou)是由進風(feng)管、排(pai)風(feng)管、箱體(ti)、灰斗、清灰裝(zhuang)置(zhi)、導(dao)流(liu)裝(zhuang)置(zhi)、氣流(liu)分流(liu)分布板、濾(lv)筒及電控裝(zhuang)置(zhi)組成，類(lei)似氣箱脈沖袋除(chu)塵結構(gou)。
濾(lv)筒在(zai)除(chu)塵器中的布(bu)置(zhi)很重要(yao)，既可(ke)以垂直布(bu)置(zhi)在(zai)箱體花(hua)板(ban)上(shang)，也(ye)可(ke)以傾斜布(bu)置(zhi) 在(zai)花(hua)板(ban)上(shang)，從清(qing)灰效果(guo)看，垂直布(bu)置(zhi)較為合理。花(hua)板(ban)下部(bu)為過濾(lv)室，上(shang)部(bu)為氣(qi)箱脈沖室。在(zai)除(chu)塵器入口處裝有氣(qi)流分(fen)布(bu)板(ban)。
含塵(chen)(chen)氣(qi)(qi)(qi)體進(jin)入除塵(chen)(chen)器灰斗后(hou)，由于氣(qi)(qi)(qi)流(liu)斷面(mian)突然(ran)擴大及氣(qi)(qi)(qi)流(liu)分布(bu)板作(zuo)用，氣(qi)(qi)(qi)流(liu)中一部分粗大顆粒(li)在動和慣性力作(zuo)用下沉降(jiang)在灰斗；粒(li)度(du)(du)細、密度(du)(du)小的塵(chen)(chen)粒(li)進(jin)入濾(lv)塵(chen)(chen)室后(hou)，通過布(bu)朗擴散和篩濾(lv)等組合效(xiao)應(ying)，使粉塵(chen)(chen)沉積在濾(lv)料表面(mian)上，凈化后(hou)的氣(qi)(qi)(qi)體進(jin)入凈氣(qi)(qi)(qi)室由排氣(qi)(qi)(qi)管經(jing)風機排出。
濾(lv)筒(tong)(tong)式除塵(chen)器(qi)的(de)阻(zu)力隨濾(lv)料表(biao)面粉(fen)(fen)塵(chen)層厚度的(de)增加(jia)而增大(da)。阻(zu)力達到某(mou)一(yi)規定值時進行清(qing)灰(hui)(hui)。此時PLC程(cheng)序控制脈(mo)沖(chong)閥(fa)的(de)啟(qi)閉(bi)，首(shou)先一(yi)分室(shi)(shi)提升閥(fa)關(guan)閉(bi)，將過(guo)(guo)濾(lv)氣(qi)流(liu)(liu)截斷(duan)，然(ran)后(hou)電(dian)磁脈(mo)沖(chong)閥(fa)開啟(qi)，壓縮空氣(qi)以及短的(de)時間在(zai)(zai)上箱體(ti)內迅速膨脹，涌入(ru)濾(lv)筒(tong)(tong)，使濾(lv)筒(tong)(tong)膨脹變形產生振(zhen)動，并(bing)在(zai)(zai)逆向氣(qi)流(liu)(liu)沖(chong)刷的(de)作用(yong)下，附著在(zai)(zai)濾(lv)袋(dai)外表(biao)面上的(de)粉(fen)(fen)塵(chen)被剝離落入(ru)灰(hui)(hui)斗中(zhong)。清(qing)灰(hui)(hui)完畢后(hou)，電(dian)磁脈(mo)沖(chong)閥(fa)關(guan)閉(bi)，提升閥(fa)打(da)開，該室(shi)(shi)又恢(hui)復過(guo)(guo)濾(lv)狀態。清(qing)灰(hui)(hui)各室(shi)(shi)依次進行，從(cong)一(yi)室(shi)(shi)清(qing)灰(hui)(hui)開始至下一(yi)次清(qing)灰(hui)(hui)開始為一(yi)個清(qing)灰(hui)(hui)周期(qi)。脫落的(de)粉(fen)(fen)塵(chen)掉入(ru)灰(hui)(hui)斗內通過(guo)(guo)缷(xie)灰(hui)(hui)閥(fa)排(pai)出。
在(zai)此過程中必須定(ding)期對濾(lv)(lv)(lv)筒進(jin)行更換和清洗，以確保過濾(lv)(lv)(lv)效果和精度，因為(wei)在(zai)過濾(lv)(lv)(lv)過程中粉塵除了被阻隔外還有(you)部(bu)分會(hui)沉積于(yu)濾(lv)(lv)(lv)料表(biao)面，增大(da)阻力，所(suo)以一般的正(zheng)確更換時間(jian)是三至五個月！
