濾筒除塵設備以濾筒作為過濾元件所組成或采用脈沖噴吹的除塵設備。濾筒除塵設備(bei)按安裝方(fang)式分(fen)，可以分(fen)為斜插式，側裝式，吊裝式，上裝式。濾(lv)(lv)筒(tong)(tong)(tong)除(chu)塵器(qi)按濾(lv)(lv)筒(tong)(tong)(tong)材(cai)料(liao)分(fen)，可以分(fen)為長(chang)纖維(wei)聚(ju)酯濾(lv)(lv)筒(tong)(tong)(tong)除(chu)塵器(qi)，復合纖維(wei)濾(lv)(lv)筒(tong)(tong)(tong)除(chu)塵器(qi)，防(fang)靜電濾(lv)(lv)筒(tong)(tong)(tong)除(chu)塵器(qi)，阻燃濾(lv)(lv)筒(tong)(tong)(tong)除(chu)塵器(qi)，覆膜(mo)濾(lv)(lv)筒(tong)(tong)(tong)除(chu)塵器(qi)，納米(mi)濾(lv)(lv)筒(tong)(tong)(tong)除(chu)塵器(qi)等(deng)。

　　含塵氣(qi)體(ti)進(jin)(jin)入(ru)(ru)除(chu)塵器灰(hui)斗后(hou)，由于氣(qi)流斷面突然擴大及氣(qi)流分(fen)布板作用，氣(qi)流中一部分(fen)粗大顆(ke)粒(li)在動和慣(guan)性力作用下沉(chen)降在灰(hui)斗；粒(li)度細、密度小(xiao)的塵粒(li)進(jin)(jin)入(ru)(ru)濾塵室后(hou)，通過布朗擴散和篩濾等組合效應，使(shi)粉塵沉(chen)積在濾料表(biao)面上，凈化后(hou)的氣(qi)體(ti)進(jin)(jin)入(ru)(ru)凈氣(qi)室由排氣(qi)管經風機(ji)排出(chu)。

　　濾(lv)(lv)筒式(shi)除(chu)塵(chen)(chen)器(qi)的阻(zu)力隨濾(lv)(lv)料表(biao)面粉塵(chen)(chen)層(ceng)厚(hou)度的增加而增大。阻(zu)力達到某一(yi)(yi)規定值時(shi)(shi)進行(xing)清(qing)(qing)灰(hui)(hui)。此時(shi)(shi)PLC程(cheng)序控制脈沖(chong)(chong)閥的啟閉，首先一(yi)(yi)分室(shi)提(ti)升閥關閉，將過(guo)濾(lv)(lv)氣(qi)(qi)(qi)流截斷，然后電(dian)磁脈沖(chong)(chong)閥開啟，壓縮空氣(qi)(qi)(qi)以及短的時(shi)(shi)間在(zai)上箱體內迅速膨(peng)脹，涌入濾(lv)(lv)筒，使濾(lv)(lv)筒膨(peng)脹變形產生振動(dong)，并在(zai)逆向氣(qi)(qi)(qi)流沖(chong)(chong)刷的作(zuo)用下，附著在(zai)濾(lv)(lv)袋外表(biao)面上的粉塵(chen)(chen)被剝離落入灰(hui)(hui)斗(dou)中。清(qing)(qing)灰(hui)(hui)完(wan)畢后，電(dian)磁脈沖(chong)(chong)閥關閉，提(ti)升閥打開，該(gai)室(shi)又恢復過(guo)濾(lv)(lv)狀態。清(qing)(qing)灰(hui)(hui)各室(shi)依次進行(xing)，從第一(yi)(yi)室(shi)清(qing)(qing)灰(hui)(hui)開始至下一(yi)(yi)次清(qing)(qing)灰(hui)(hui)開始為一(yi)(yi)個清(qing)(qing)灰(hui)(hui)周期。脫落的粉塵(chen)(chen)掉入灰(hui)(hui)斗(dou)內通過(guo)缷(xie)灰(hui)(hui)閥排出。