濾筒(tong)(tong)(tong)(tong)(tong)(tong)除(chu)(chu)(chu)(chu)(chu)塵(chen)器(qi)以濾筒(tong)(tong)(tong)(tong)(tong)(tong)作為過濾元(yuan)件所組成或采用脈沖噴吹的(de)除(chu)(chu)(chu)(chu)(chu)塵(chen)器(qi)。 濾筒(tong)(tong)(tong)(tong)(tong)(tong)除(chu)(chu)(chu)(chu)(chu)塵(chen)器(qi)按安裝方式(shi)分(fen)，可(ke)以分(fen)為斜插式(shi)，側裝式(shi)，吊(diao)裝式(shi)，上(shang)裝式(shi)。 濾筒(tong)(tong)(tong)(tong)(tong)(tong)除(chu)(chu)(chu)(chu)(chu)塵(chen)器(qi)按濾筒(tong)(tong)(tong)(tong)(tong)(tong)材(cai)料分(fen)，可(ke)以分(fen)為長纖維聚酯濾筒(tong)(tong)(tong)(tong)(tong)(tong)除(chu)(chu)(chu)(chu)(chu)塵(chen)器(qi)，復合纖維濾筒(tong)(tong)(tong)(tong)(tong)(tong)除(chu)(chu)(chu)(chu)(chu)塵(chen)器(qi)，防(fang)靜電濾筒(tong)(tong)(tong)(tong)(tong)(tong)除(chu)(chu)(chu)(chu)(chu)塵(chen)器(qi)，阻燃濾筒(tong)(tong)(tong)(tong)(tong)(tong)除(chu)(chu)(chu)(chu)(chu)塵(chen)器(qi)，覆膜濾筒(tong)(tong)(tong)(tong)(tong)(tong)除(chu)(chu)(chu)(chu)(chu)塵(chen)器(qi)，納米濾筒(tong)(tong)(tong)(tong)(tong)(tong)除(chu)(chu)(chu)(chu)(chu)塵(chen)器(qi)等(deng)。
濾(lv)筒式除(chu)塵(chen)(chen)器(qi)早在(zai)20世紀70年(nian)代就已(yi)經在(zai)日(ri)本和(he)歐美一些國(guo)家出現，具有(you)體積(ji)小，效(xiao)率高，投(tou)資省，易(yi)維護(hu)等(deng)(deng)優點(dian)(dian)，但因其設(she)(she)備容(rong)量小，難組合(he)成大(da)(da)風量設(she)(she)備，過(guo)(guo)濾(lv)風速(su)偏(pian)低(di)，應(ying)用(yong)范圍窄，僅(jin)在(zai)糧食(shi)(shi)、焊接等(deng)(deng)行業(ye)(ye)應(ying)用(yong)，所(suo)以多(duo)年(nian)來未能大(da)(da)量推廣(guang)。近年(nian)來，隨著(zhu)新技術、新材料不(bu)斷地發(fa)展，以日(ri)本，美國(guo)的(de)公(gong)司為代表，對除(chu)塵(chen)(chen)器(qi)的(de)結構和(he)濾(lv)料進行了改(gai)進，使得濾(lv)筒除(chu)塵(chen)(chen)器(qi)廣(guang)泛地應(ying)用(yong)于(yu)水泥、鋼鐵、電力、食(shi)(shi)品(pin)、冶金(jin)、化工等(deng)(deng)工業(ye)(ye)領域，整體容(rong)量增加數倍，成為過(guo)(guo)濾(lv)面(mian)積(ji)>2000m2大(da)(da)型(xing)除(chu)塵(chen)(chen)器(qi)（GB6719－86類），是(shi)解決傳統(tong)除(chu)塵(chen)(chen)器(qi)對超細粉塵(chen)(chen)收集難、過(guo)(guo)濾(lv)風速(su)高、清(qing)灰效(xiao)果(guo)差、濾(lv)袋易(yi)磨損破漏(lou)、運行成本高的(de)上(shang)好方(fang)案，和(he)市場上(shang)現有(you)各種袋式、靜電除(chu)塵(chen)(chen)器(qi)相比具有(you)有(you)效(xiao)過(guo)(guo)濾(lv)面(mian)積(ji)大(da)(da)、壓(ya)差低(di)、低(di)排放、體積(ji)小、使用(yong)壽命長等(deng)(deng)特點(dian)(dian)，成為工業(ye)(ye)除(chu)塵(chen)(chen)器(qi)發(fa)展的(de)新方(fang)向。
濾筒(tong)式(shi)除塵(chen)器的結(jie)構是由(you)進風管、排風管、箱(xiang)體、灰斗、清(qing)灰裝(zhuang)置(zhi)、導(dao)流裝(zhuang)置(zhi)、氣流分流分布板、濾筒(tong)及電控裝(zhuang)置(zhi)組成，類似氣箱(xiang)脈沖袋(dai)除塵(chen)結(jie)構。
濾筒在除塵(chen)器中的(de)布(bu)置(zhi)(zhi)很重要，既可(ke)以(yi)垂(chui)直(zhi)布(bu)置(zhi)(zhi)在箱體花(hua)板上(shang)(shang)，也可(ke)以(yi)傾斜布(bu)置(zhi)(zhi) 在花(hua)板上(shang)(shang)，從清灰效果看，垂(chui)直(zhi)布(bu)置(zhi)(zhi)較為(wei)合理。花(hua)板下部(bu)為(wei)過濾室，上(shang)(shang)部(bu)為(wei)氣箱脈沖室。在除塵(chen)器入口處裝有氣流分布(bu)板。
含塵氣體(ti)進入(ru)(ru)除塵器灰(hui)(hui)斗(dou)后(hou)，由于氣流(liu)斷面(mian)(mian)突(tu)然擴(kuo)大及氣流(liu)分布板作用，氣流(liu)中(zhong)一(yi)部分粗(cu)大顆粒(li)在(zai)動和慣性力(li)作用下沉(chen)降在(zai)灰(hui)(hui)斗(dou)；粒(li)度(du)細、密(mi)度(du)小的塵粒(li)進入(ru)(ru)濾塵室后(hou)，通過布朗擴(kuo)散和篩濾等組合效(xiao)應，使粉塵沉(chen)積在(zai)濾料表面(mian)(mian)上，凈化(hua)后(hou)的氣體(ti)進入(ru)(ru)凈氣室由排氣管經風機排出。
濾(lv)筒(tong)式除塵(chen)器的阻力(li)隨濾(lv)料表(biao)面粉塵(chen)層厚度的增加(jia)而增大。阻力(li)達到某(mou)一(yi)(yi)規定值時進行清(qing)灰(hui)(hui)(hui)。此時PLC程序控制(zhi)脈沖閥(fa)(fa)(fa)的啟閉，首先(xian)一(yi)(yi)分室(shi)(shi)提(ti)升(sheng)(sheng)閥(fa)(fa)(fa)關閉，將過(guo)(guo)濾(lv)氣流截(jie)斷，然后(hou)(hou)電磁(ci)脈沖閥(fa)(fa)(fa)開啟，壓縮空(kong)氣以及短(duan)的時間在上箱體內迅(xun)速膨(peng)脹(zhang)，涌入(ru)濾(lv)筒(tong)，使(shi)濾(lv)筒(tong)膨(peng)脹(zhang)變形產生振動，并在逆向氣流沖刷的作用下(xia)，附著在濾(lv)袋外表(biao)面上的粉塵(chen)被剝離落(luo)入(ru)灰(hui)(hui)(hui)斗中。清(qing)灰(hui)(hui)(hui)完畢后(hou)(hou)，電磁(ci)脈沖閥(fa)(fa)(fa)關閉，提(ti)升(sheng)(sheng)閥(fa)(fa)(fa)打開，該室(shi)(shi)又(you)恢復過(guo)(guo)濾(lv)狀態。清(qing)灰(hui)(hui)(hui)各室(shi)(shi)依次進行，從(cong)一(yi)(yi)室(shi)(shi)清(qing)灰(hui)(hui)(hui)開始至下(xia)一(yi)(yi)次清(qing)灰(hui)(hui)(hui)開始為一(yi)(yi)個清(qing)灰(hui)(hui)(hui)周期。脫(tuo)落(luo)的粉塵(chen)掉入(ru)灰(hui)(hui)(hui)斗內通(tong)過(guo)(guo)缷灰(hui)(hui)(hui)閥(fa)(fa)(fa)排出。
在(zai)此過(guo)(guo)程(cheng)中必須(xu)定期對(dui)濾筒進行更(geng)換(huan)和清(qing)洗(xi)，以(yi)確保過(guo)(guo)濾效果和精(jing)度，因(yin)為在(zai)過(guo)(guo)濾過(guo)(guo)程(cheng)中粉塵除了被阻(zu)隔外還(huan)有部(bu)分(fen)會沉積于濾料表面，增大阻(zu)力，所以(yi)一(yi)般(ban)的正(zheng)確更(geng)換(huan)時間(jian)是三至(zhi)五個(ge)月！
