哈爾濱除塵設備

　　除(chu)(chu)塵(chen)器(qi)的(de)(de)工(gong)作好壞(huai)，不僅直接影響(xiang)到除(chu)(chu)塵(chen)系(xi)統(tong)的(de)(de)可靠運行(xing)，還(huan)關系(xi)到生產系(xi)統(tong)的(de)(de)正(zheng)常運行(xing)、車間廠(chang)區和(he)(he)(he)周邊居民(min)的(de)(de)環境衛生、風(feng)機葉片(pian)的(de)(de)磨損(sun)和(he)(he)(he)壽(shou)命，同時(shi)還(huan)涉及有經濟價值物(wu)料的(de)(de)回收利用(yong)問題。因此(ci)，必須正(zheng)確地設計、選(xuan)擇(ze)與使用(yong)除(chu)(chu)塵(chen)器(qi)。選(xuan)擇(ze)除(chu)(chu)塵(chen)器(qi)時(shi)必須全面考慮一次投資和(he)(he)(he)運行(xing)費(fei)用(yong)，如除(chu)(chu)塵(chen)效率、壓力損(sun)失、可靠性(xing)、一次投資、占地面積、維修管理等(deng)因素(su)，根據煙塵(chen)的(de)(de)理化性(xing)質、特(te)點(dian)和(he)(he)(he)生產工(gong)藝的(de)(de)要求，針(zhen)對性(xing)地選(xuan)擇(ze)除(chu)(chu)塵(chen)器(qi)。

　　1.根據除塵效率的要求

　　所選除塵(chen)器必須滿足(zu)排放標準的要求。

　　不同的(de)除(chu)(chu)(chu)塵(chen)器(qi)(qi)(qi)(qi)(qi)具有(you)不同的(de)除(chu)(chu)(chu)塵(chen)效(xiao)率。對于運行(xing)狀況不穩定或波(bo)動(dong)較大的(de)除(chu)(chu)(chu)塵(chen)系(xi)統，要注意(yi)煙氣(qi)處(chu)理量(liang)變化對除(chu)(chu)(chu)塵(chen)效(xiao)率的(de)影響。正常運行(xing)時，除(chu)(chu)(chu)塵(chen)器(qi)(qi)(qi)(qi)(qi)的(de)效(xiao)率高低排序是(shi)：袋(dai)式(shi)除(chu)(chu)(chu)塵(chen)器(qi)(qi)(qi)(qi)(qi)、電(dian)除(chu)(chu)(chu)塵(chen)器(qi)(qi)(qi)(qi)(qi)及文丘里除(chu)(chu)(chu)塵(chen)器(qi)(qi)(qi)(qi)(qi)、水膜旋風(feng)除(chu)(chu)(chu)塵(chen)器(qi)(qi)(qi)(qi)(qi)、旋風(feng)除(chu)(chu)(chu)塵(chen)器(qi)(qi)(qi)(qi)(qi)、慣性除(chu)(chu)(chu)塵(chen)器(qi)(qi)(qi)(qi)(qi)、重力除(chu)(chu)(chu)塵(chen)器(qi)(qi)(qi)(qi)(qi)

　　2.根據氣體性(xing)質

　　選擇除(chu)(chu)(chu)塵(chen)器(qi)(qi)時(shi)，必須考慮氣(qi)(qi)(qi)(qi)(qi)體的(de)風(feng)(feng)量(liang)、溫(wen)度(du)、成分、濕度(du)等因素。電除(chu)(chu)(chu)塵(chen)器(qi)(qi)適合于(yu)(yu)大風(feng)(feng)量(liang)、溫(wen)度(du)<400℃的(de)煙(yan)(yan)氣(qi)(qi)(qi)(qi)(qi)凈(jing)(jing)化(hua)(hua)；袋(dai)式(shi)除(chu)(chu)(chu)塵(chen)器(qi)(qi)適合于(yu)(yu)溫(wen)度(du)<260℃的(de)煙(yan)(yan)氣(qi)(qi)(qi)(qi)(qi)凈(jing)(jing)化(hua)(hua)，不(bu)受煙(yan)(yan)氣(qi)(qi)(qi)(qi)(qi)量(liang)大小的(de)限制，當溫(wen)度(du)≥260℃時(shi)，煙(yan)(yan)氣(qi)(qi)(qi)(qi)(qi)應冷(leng)卻降溫(wen)后方可(ke)使(shi)用(yong)袋(dai)式(shi)除(chu)(chu)(chu)塵(chen)器(qi)(qi)；袋(dai)式(shi)除(chu)(chu)(chu)塵(chen)器(qi)(qi)不(bu)宜(yi)處理高濕度(du)和(he)含油(you)污的(de)煙(yan)(yan)氣(qi)(qi)(qi)(qi)(qi)凈(jing)(jing)化(hua)(hua)；易(yi)燃(ran)易(yi)爆的(de)氣(qi)(qi)(qi)(qi)(qi)體凈(jing)(jing)化(hua)(hua)（如煤氣(qi)(qi)(qi)(qi)(qi)）適合于(yu)(yu)濕式(shi)除(chu)(chu)(chu)塵(chen)器(qi)(qi)；旋風(feng)(feng)除(chu)(chu)(chu)塵(chen)器(qi)(qi)的(de)處理風(feng)(feng)量(liang)有限，當風(feng)(feng)量(liang)較(jiao)大時(shi)，可(ke)采(cai)用(yong)多臺除(chu)(chu)(chu)塵(chen)器(qi)(qi)并聯的(de)方式(shi)；當需要(yao)同(tong)時(shi)除(chu)(chu)(chu)塵(chen)和(he)凈(jing)(jing)化(hua)(hua)有害氣(qi)(qi)(qi)(qi)(qi)體時(shi)，可(ke)考慮采(cai)用(yong)噴淋塔和(he)旋風(feng)(feng)水膜除(chu)(chu)(chu)塵(chen)器(qi)(qi)。

　　3.根(gen)據粉塵性質

　　粉(fen)(fen)塵(chen)(chen)(chen)(chen)(chen)性(xing)(xing)(xing)(xing)質(zhi)包括比電(dian)(dian)阻(zu)(zu)、粒度、真密度、瓢(piao)性(xing)(xing)(xing)(xing)、憎水(shui)性(xing)(xing)(xing)(xing)和水(shui)硬(ying)(ying)性(xing)(xing)(xing)(xing)、可(ke)燃(ran)、爆(bao)炸(zha)等(deng)。比電(dian)(dian)阻(zu)(zu)過(guo)大或(huo)過(guo)小(xiao)的(de)(de)粉(fen)(fen)塵(chen)(chen)(chen)(chen)(chen)不(bu)(bu)(bu)(bu)(bu)宜采用電(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)(qi)(qi)，袋式(shi)(shi)(shi)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)(qi)(qi)不(bu)(bu)(bu)(bu)(bu)受粉(fen)(fen)塵(chen)(chen)(chen)(chen)(chen)比電(dian)(dian)阻(zu)(zu)的(de)(de)影(ying)(ying)響；粉(fen)(fen)塵(chen)(chen)(chen)(chen)(chen)的(de)(de)濃度和粒度對(dui)電(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)(qi)(qi)效率(lv)的(de)(de)影(ying)(ying)響較(jiao)為顯著，但(dan)對(dui)袋式(shi)(shi)(shi)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)(qi)(qi)的(de)(de)影(ying)(ying)響不(bu)(bu)(bu)(bu)(bu)顯著；當氣體的(de)(de)含塵(chen)(chen)(chen)(chen)(chen)濃度較(jiao)高時，電(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)(qi)(qi)前宜設(she)置預除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)裝(zhuang)置；袋式(shi)(shi)(shi)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)(qi)(qi)的(de)(de)型式(shi)(shi)(shi)、清(qing)灰(hui)方式(shi)(shi)(shi)和過(guo)濾(lv)風速取決于(yu)(yu)粉(fen)(fen)塵(chen)(chen)(chen)(chen)(chen)的(de)(de)性(xing)(xing)(xing)(xing)質(zhi)（粒徑、瓢(piao)性(xing)(xing)(xing)(xing)）；濕式(shi)(shi)(shi)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)(qi)(qi)不(bu)(bu)(bu)(bu)(bu)適合于(yu)(yu)凈化(hua)憎水(shui)性(xing)(xing)(xing)(xing)和水(shui)硬(ying)(ying)性(xing)(xing)(xing)(xing)的(de)(de)粉(fen)(fen)塵(chen)(chen)(chen)(chen)(chen)：粉(fen)(fen)塵(chen)(chen)(chen)(chen)(chen)的(de)(de)真密度對(dui)重(zhong)力除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)(qi)(qi)、慣(guan)性(xing)(xing)(xing)(xing)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)(qi)(qi)和旋風除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)(qi)(qi)的(de)(de)影(ying)(ying)響顯著；對(dui)于(yu)(yu)新(xin)附性(xing)(xing)(xing)(xing)大的(de)(de)粉(fen)(fen)塵(chen)(chen)(chen)(chen)(chen)，易導致(zhi)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)(qi)(qi)工(gong)作(zuo)面貓結(jie)或(huo)堵塞，因此，不(bu)(bu)(bu)(bu)(bu)宜采用干法除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)；粉(fen)(fen)塵(chen)(chen)(chen)(chen)(chen)凈化(hua)遇水(shui)后，能產生可(ke)燃(ran)或(huo)有爆(bao)炸(zha)危險(xian)的(de)(de)混(hun)合物時，不(bu)(bu)(bu)(bu)(bu)得采用濕式(shi)(shi)(shi)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)(qi)(qi)。

　　4.根據(ju)壓力損失與能耗

　　袋式除塵(chen)(chen)(chen)器(qi)的(de)阻力比電除塵(chen)(chen)(chen)器(qi)的(de)阻力大，但從除塵(chen)(chen)(chen)器(qi)整體(ti)能耗來對比，兩(liang)者(zhe)能耗相差不大。

　　5.根據設備投資和運(yun)行費用

　　6.節水(shui)與防凍的(de)要求

　　水資(zi)源缺乏的地區不適合采用(yong)濕式除塵器(qi)；北(bei)方地區存在冬季凍結的問(wen)題(ti)，盡(jin)可能(neng)不使用(yong)濕式除塵器(qi)。

　　7.粉塵和氣體回收利用(yong)的要求

　　粉塵具有回(hui)收(shou)價值時(shi)，宜采用(yong)干法除塵；當(dang)粉塵具有很高(gao)的(de)回(hui)收(shou)價值時(shi)，宜采用(yong)袋式除塵器；當(dang)凈化(hua)后(hou)的(de)氣(qi)體需(xu)要(yao)回(hui)收(shou)利(li)用(yong)或(huo)凈化(hua)后(hou)的(de)空(kong)氣(qi)需(xu)要(yao)再循環(huan)利(li)用(yong)時(shi)，宜采用(yong)高(gao)效袋式除塵器。