1)選擇風機前，應根據脈沖袋式除塵器風機輸送氣體的性質選擇不同用途的風機；

2）在風機(ji)的(de)選擇(ze)時，應優先考慮效(xiao)率較(jiao)(jiao)高、型號較(jiao)(jiao)小、調節范(fan)圍較(jiao)(jiao)大的(de)一種；

3)風(feng)(feng)(feng)(feng)(feng)扇(shan)(shan)應避免(mian)并聯(lian)或(huo)串(chuan)(chuan)聯(lian)工(gong)(gong)作(zuo)。風(feng)(feng)(feng)(feng)(feng)扇(shan)(shan)聯(lian)合工(gong)(gong)作(zuo)時(shi)，應盡(jin)可能(neng)選(xuan)擇相(xiang)同(tong)(tong)型(xing)號(hao)、相(xiang)同(tong)(tong)規格的(de)(de)(de)風(feng)(feng)(feng)(feng)(feng)扇(shan)(shan)并聯(lian)或(huo)串(chuan)(chuan)聯(lian)工(gong)(gong)作(zuo)。當采用串(chuan)(chuan)聯(lian)時(shi)，級(ji)(ji)風(feng)(feng)(feng)(feng)(feng)扇(shan)(shan)與級(ji)(ji)風(feng)(feng)(feng)(feng)(feng)扇(shan)(shan)之間應有的(de)(de)(de)管道連接。風(feng)(feng)(feng)(feng)(feng)機(ji)是強制(zhi)通風(feng)(feng)(feng)(feng)(feng)收塵系(xi)統的(de)(de)(de)一(yi)(yi)個(ge)組成部分。風(feng)(feng)(feng)(feng)(feng)機(ji)選(xuan)型(xing)時(shi)，要(yao)有10^~15^風(feng)(feng)(feng)(feng)(feng)量(liang)儲備和(he)15^的(de)(de)(de)風(feng)(feng)(feng)(feng)(feng)壓(ya)(ya)(ya)(ya)儲備。一(yi)(yi)般來說，一(yi)(yi)個(ge)生產(chan)系(xi)統選(xuan)擇一(yi)(yi)個(ge)風(feng)(feng)(feng)(feng)(feng)扇(shan)(shan)。如果風(feng)(feng)(feng)(feng)(feng)扇(shan)(shan)的(de)(de)(de)風(feng)(feng)(feng)(feng)(feng)量(liang)和(he)風(feng)(feng)(feng)(feng)(feng)壓(ya)(ya)(ya)(ya)不(bu)能(neng)滿足要(yao)求(qiu)，則采取風(feng)(feng)(feng)(feng)(feng)扇(shan)(shan)串(chuan)(chuan)聯(lian)或(huo)并聯(lian)措施。選(xuan)擇兩(liang)(liang)(liang)個(ge)相(xiang)同(tong)(tong)的(de)(de)(de)風(feng)(feng)(feng)(feng)(feng)扇(shan)(shan)。對于串(chuan)(chuan)聯(lian)系(xi)統，根(gen)據(ju)風(feng)(feng)(feng)(feng)(feng)量(liang)不(bu)變，兩(liang)(liang)(liang)臺(tai)風(feng)(feng)(feng)(feng)(feng)機(ji)的(de)(de)(de)風(feng)(feng)(feng)(feng)(feng)壓(ya)(ya)(ya)(ya)相(xiang)加(jia)〔工(gong)(gong)作(zuo)條件點的(de)(de)(de)風(feng)(feng)(feng)(feng)(feng)壓(ya)(ya)(ya)(ya)增加(jia)，但不(bu)成倍(bei)增加(jia)；并聯(lian)系(xi)統，根(gen)據(ju)風(feng)(feng)(feng)(feng)(feng)壓(ya)(ya)(ya)(ya)不(bu)變，兩(liang)(liang)(liang)臺(tai)風(feng)(feng)(feng)(feng)(feng)機(ji)的(de)(de)(de)風(feng)(feng)(feng)(feng)(feng)量(liang)相(xiang)加(jia)（工(gong)(gong)作(zuo)條件點的(de)(de)(de)風(feng)(feng)(feng)(feng)(feng)量(liang)不(bu)成倍(bei)增加(jia)）。

布袋(dai)除(chu)塵器的4種形(xing)式

（1）上進(jin)風(feng)(feng)式(shi)和下進(jin)風(feng)(feng)式(shi)上進(jin)風(feng)(feng)式(shi)是(shi)(shi)指(zhi)袋(dai)(dai)(dai)式(shi)除塵(chen)(chen)器除塵(chen)(chen)室上部的(de)含(han)塵(chen)(chen)氣(qi)(qi)(qi)流(liu)(liu)入口(kou)，氣(qi)(qi)(qi)流(liu)(liu)與粒塵(chen)(chen)沉降方(fang)(fang)向一致(zhi)。下進(jin)氣(qi)(qi)(qi)風(feng)(feng)式(shi)是(shi)(shi)含(han)塵(chen)(chen)氣(qi)(qi)(qi)流(liu)(liu)入口(kou)位于(yu)袋(dai)(dai)(dai)室下部，氣(qi)(qi)(qi)流(liu)(liu)與顆粒粉塵(chen)(chen)沉降方(fang)(fang)向相反。如果外(wai)部看是(shi)(shi)下進(jin)風(feng)(feng)式(shi)，但(dan)袋(dai)(dai)(dai)室設(she)有(you)導流(liu)(liu)板將含(han)塵(chen)(chen)氣(qi)(qi)(qi)流(liu)(liu)引入袋(dai)(dai)(dai)室上部擴(kuo)散，應(ying)屬(shu)于(yu)上進(jin)風(feng)(feng)式(shi)。

（2）圓濾(lv)(lv)式(shi)和扁濾(lv)(lv)式(shi)圓濾(lv)(lv)式(shi)是指除(chu)塵布袋(dai)為圓筒形(xing)。扁濾(lv)(lv)式(shi)是指濾(lv)(lv)袋(dai)為平板(信封)梯形(xing)、楔(xie)形(xing)和其(qi)他非圓筒形(xing)狀(zhuang)。

（3）吸入式和壓入式吸入式是指風扇位于砂石除塵器后面，砂石除塵器負壓工作。壓入式是指風機位于布袋除塵器之前，砂石除塵器為正壓工作。

（4）內(nei)濾(lv)式(shi)和外濾(lv)式(shi)內(nei)濾(lv)式(shi)是指(zhi)含塵(chen)(chen)氣(qi)流由袋(dai)內(nei)流向(xiang)袋(dai)外，利用除塵(chen)(chen)布(bu)袋(dai)內(nei)側捕(bu)集粉塵(chen)(chen)。外濾(lv)式(shi)是指(zhi)含塵(chen)(chen)氣(qi)流由袋(dai)外流向(xiang)袋(dai)內(nei)，利用除塵(chen)(chen)布(bu)袋(dai)外側捕(bu)集粉塵(chen)(chen)。