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金華濾筒除塵器
金華濾筒除塵器

金華濾筒除塵器

  • 所屬分類:金華(hua)集塵系(xi)統(tong)
  • 發布日期:2019-05-07
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濾(lv)筒(tong)(tong)(tong)(tong)除(chu)(chu)塵器(qi)以濾(lv)筒(tong)(tong)(tong)(tong)作為過濾(lv)元件所組成(cheng)或采用(yong)脈沖噴吹的除(chu)(chu)塵器(qi)。 濾(lv)筒(tong)(tong)(tong)(tong)除(chu)(chu)塵器(qi)按安裝(zhuang)(zhuang)方式(shi)分,可以分為斜(xie)插式(shi),側(ce)裝(zhuang)(zhuang)式(shi),吊裝(zhuang)(zhuang)式(shi),上裝(zhuang)(zhuang)式(shi)。 濾(lv)筒(tong)(tong)(tong)(tong)除(chu)(chu)塵器(qi)按濾(lv)筒(tong)(tong)(tong)(tong)材料(liao)分,可以分為長纖維聚酯濾(lv)筒(tong)(tong)(tong)(tong)除(chu)(chu)塵器(qi),復合纖維濾(lv)筒(tong)(tong)(tong)(tong)除(chu)(chu)塵器(qi),防(fang)靜電濾(lv)筒(tong)(tong)(tong)(tong)除(chu)(chu)塵器(qi),阻燃濾(lv)筒(tong)(tong)(tong)(tong)除(chu)(chu)塵器(qi),覆膜(mo)濾(lv)筒(tong)(tong)(tong)(tong)除(chu)(chu)塵器(qi),納米濾(lv)筒(tong)(tong)(tong)(tong)除(chu)(chu)塵器(qi)等。

濾筒式(shi)(shi)除(chu)(chu)(chu)塵(chen)器(qi)早在20世紀70年(nian)代(dai)(dai)就已經在日(ri)本(ben)(ben)和歐美(mei)一些國家出現,具有(you)(you)體(ti)積小,效率高,投(tou)資省,易維護等(deng)優點,但因(yin)其設備(bei)容(rong)量(liang)(liang)小,難組合成(cheng)大(da)風(feng)量(liang)(liang)設備(bei),過濾風(feng)速偏低,應(ying)用范圍窄,僅在糧(liang)食、焊接等(deng)行業(ye)應(ying)用,所(suo)以多年(nian)來未能大(da)量(liang)(liang)推廣(guang)。近(jin)年(nian)來,隨著(zhu)新(xin)技術、新(xin)材料不斷地發展,以日(ri)本(ben)(ben),美(mei)國的(de)(de)公(gong)司為(wei)(wei)代(dai)(dai)表,對除(chu)(chu)(chu)塵(chen)器(qi)的(de)(de)結構和濾料進行了改(gai)進,使(shi)得(de)濾筒除(chu)(chu)(chu)塵(chen)器(qi)廣(guang)泛地應(ying)用于(yu)水泥、鋼鐵、電(dian)力、食品、冶金、化工等(deng)工業(ye)領域(yu),整體(ti)容(rong)量(liang)(liang)增加(jia)數倍,成(cheng)為(wei)(wei)過濾面(mian)積>2000m2大(da)型除(chu)(chu)(chu)塵(chen)器(qi)(GB6719-86類(lei)),是(shi)解決傳(chuan)統除(chu)(chu)(chu)塵(chen)器(qi)對超細粉塵(chen)收(shou)集難、過濾風(feng)速高、清灰(hui)效果差、濾袋(dai)易磨損破漏、運(yun)行成(cheng)本(ben)(ben)高的(de)(de)上好方案,和市場上現有(you)(you)各種袋(dai)式(shi)(shi)、靜電(dian)除(chu)(chu)(chu)塵(chen)器(qi)相(xiang)比具有(you)(you)有(you)(you)效過濾面(mian)積大(da)、壓(ya)差低、低排放、體(ti)積小、使(shi)用壽命長等(deng)特點,成(cheng)為(wei)(wei)工業(ye)除(chu)(chu)(chu)塵(chen)器(qi)發展的(de)(de)新(xin)方向。

濾筒式除(chu)塵器的結構(gou)是由進(jin)風管、排風管、箱(xiang)體、灰斗、清灰裝置(zhi)、導流(liu)裝置(zhi)、氣(qi)流(liu)分流(liu)分布板、濾筒及(ji)電控裝置(zhi)組成,類似氣(qi)箱(xiang)脈沖(chong)袋除(chu)塵結構(gou)。

濾筒在(zai)(zai)除(chu)(chu)塵器(qi)中的布(bu)(bu)置(zhi)很重(zhong)要,既可(ke)以垂直(zhi)布(bu)(bu)置(zhi)在(zai)(zai)箱體花(hua)(hua)板上(shang)(shang),也可(ke)以傾斜布(bu)(bu)置(zhi) 在(zai)(zai)花(hua)(hua)板上(shang)(shang),從清灰效果看,垂直(zhi)布(bu)(bu)置(zhi)較為(wei)合理。花(hua)(hua)板下部為(wei)過濾室,上(shang)(shang)部為(wei)氣(qi)箱脈沖(chong)室。在(zai)(zai)除(chu)(chu)塵器(qi)入(ru)口處裝有氣(qi)流分布(bu)(bu)板。

含塵氣體(ti)進(jin)入(ru)除塵器灰(hui)斗(dou)(dou)后,由于(yu)氣流(liu)斷面(mian)突然(ran)擴大及氣流(liu)分(fen)布(bu)板(ban)作用,氣流(liu)中一部分(fen)粗大顆粒(li)在(zai)(zai)動和慣性(xing)力作用下沉(chen)降在(zai)(zai)灰(hui)斗(dou)(dou);粒(li)度細、密度小的塵粒(li)進(jin)入(ru)濾(lv)塵室(shi)后,通過布(bu)朗(lang)擴散和篩(shai)濾(lv)等組合(he)效應,使粉(fen)塵沉(chen)積在(zai)(zai)濾(lv)料表面(mian)上,凈(jing)化(hua)后的氣體(ti)進(jin)入(ru)凈(jing)氣室(shi)由排(pai)氣管經風機排(pai)出。

濾筒(tong)(tong)式除塵(chen)器的阻力隨濾料表面粉塵(chen)層厚(hou)度的增(zeng)加而增(zeng)大(da)。阻力達到(dao)某一規定值(zhi)時進行(xing)清(qing)(qing)灰(hui)。此時PLC程(cheng)序控(kong)制(zhi)脈沖閥(fa)的啟(qi)閉,首先(xian)一分室提(ti)升(sheng)閥(fa)關閉,將(jiang)過濾氣(qi)流截斷(duan),然后(hou)電(dian)磁脈沖閥(fa)開(kai)(kai)(kai)啟(qi),壓縮空(kong)氣(qi)以及(ji)短的時間(jian)在(zai)上箱(xiang)體內(nei)迅速膨脹(zhang),涌入(ru)濾筒(tong)(tong),使濾筒(tong)(tong)膨脹(zhang)變形產生振動,并在(zai)逆向氣(qi)流沖刷的作用下,附著在(zai)濾袋外表面上的粉塵(chen)被剝離(li)落入(ru)灰(hui)斗(dou)中。清(qing)(qing)灰(hui)完畢后(hou),電(dian)磁脈沖閥(fa)關閉,提(ti)升(sheng)閥(fa)打開(kai)(kai)(kai),該室又恢復(fu)過濾狀態。清(qing)(qing)灰(hui)各室依(yi)次進行(xing),從一室清(qing)(qing)灰(hui)開(kai)(kai)(kai)始(shi)至下一次清(qing)(qing)灰(hui)開(kai)(kai)(kai)始(shi)為(wei)一個(ge)清(qing)(qing)灰(hui)周期(qi)。脫落的粉塵(chen)掉入(ru)灰(hui)斗(dou)內(nei)通(tong)過缷灰(hui)閥(fa)排出。

在此過(guo)程中必(bi)須定期對濾(lv)(lv)(lv)筒(tong)進行更換和清洗,以確保(bao)過(guo)濾(lv)(lv)(lv)效果和精度,因為在過(guo)濾(lv)(lv)(lv)過(guo)程中粉塵除(chu)了被阻(zu)隔外(wai)還有(you)部分會(hui)沉積于(yu)濾(lv)(lv)(lv)料表面,增大(da)阻(zu)力,所(suo)以一(yi)般的正確更換時間是三(san)至五個月!

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