冶煉爐高溫除塵系統
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人氣:1579 發布時間:2008-12-15 14:46 關鍵詞:其它 產品型號: 應用領域:大氣控制 產品價格:面議 |
系統介紹:
由于(yu)(yu)冶(ye)煉爐出口煙(yan)(yan)氣(qi)(qi)溫(wen)(wen)度均在300℃以上(shang),高于(yu)(yu)濾(lv)筒(tong)(tong)(tong)式(shi)除(chu)(chu)塵(chen)(chen)器的(de)穩定工(gong)作(zuo)溫(wen)(wen)度(低(di)(di)于(yu)(yu)100℃),故煙(yan)(yan)氣(qi)(qi)無法直(zhi)(zhi)接(jie)引入除(chu)(chu)塵(chen)(chen)器,須先進(jin)行(xing)降(jiang)(jiang)溫(wen)(wen)后進(jin)行(xing)除(chu)(chu)塵(chen)(chen)。煙(yan)(yan)氣(qi)(qi)從(cong)爐頂煙(yan)(yan)道(dao)出口先進(jin)入旋風(feng)(feng)(feng)除(chu)(chu)塵(chen)(chen)器,進(jin)行(xing)初步降(jiang)(jiang)溫(wen)(wen)及大顆(ke)粒粉塵(chen)(chen)的(de)預處理。然后再進(jin)入濾(lv)筒(tong)(tong)(tong)除(chu)(chu)塵(chen)(chen)器進(jin)行(xing)二次(ci)除(chu)(chu)塵(chen)(chen)。當冶(ye)煉煙(yan)(yan)氣(qi)(qi)溫(wen)(wen)度高于(yu)(yu)100℃時,主管道(dao)上(shang)冷風(feng)(feng)(feng)閥自動打開(kai)補充冷風(feng)(feng)(feng)降(jiang)(jiang)溫(wen)(wen)。經(jing)(jing)過(guo)降(jiang)(jiang)溫(wen)(wen)后的(de)煙(yan)(yan)氣(qi)(qi)溫(wen)(wen)度低(di)(di)于(yu)(yu)100℃,可(ke)直(zhi)(zhi)接(jie)引入旋風(feng)(feng)(feng)除(chu)(chu)塵(chen)(chen)器和(he)濾(lv)筒(tong)(tong)(tong)式(shi)除(chu)(chu)塵(chen)(chen)器進(jin)行(xing)除(chu)(chu)塵(chen)(chen)。粗顆(ke)粒粉塵(chen)(chen)在經(jing)(jing)過(guo)旋風(feng)(feng)(feng)除(chu)(chu)塵(chen)(chen)器時,由于(yu)(yu)離心力的(de)作(zuo)用粉塵(chen)(chen)落在旋風(feng)(feng)(feng)除(chu)(chu)塵(chen)(chen)器內,而那(nei)些超細(xi)粉塵(chen)(chen)再進(jin)入濾(lv)筒(tong)(tong)(tong)式(shi)除(chu)(chu)塵(chen)(chen)器過(guo)濾(lv),干凈空氣(qi)(qi)由引風(feng)(feng)(feng)機引出排放。
系統特點:
(1) 濾(lv)(lv)筒(tong)采用進口聚酯纖(xian)(xian)(xian)維(wei)作為濾(lv)(lv)料(liao)(liao),把一(yi)層亞微米級的(de)超薄纖(xian)(xian)(xian)維(wei)粘附(fu)在(zai)一(yi)般(ban)濾(lv)(lv)料(liao)(liao)上,并且在(zai)該粘附(fu)層上纖(xian)(xian)(xian)維(wei)間的(de)排列非常緊(jin)密,極小的(de)篩孔可把大部分(fen)亞微米級的(de)塵粒阻擋在(zai)濾(lv)(lv)料(liao)(liao)表面;
(2) 濾(lv)料折褶使用,可增大過(guo)濾(lv)面積(ji),并使除塵(chen)器結構更為(wei)緊湊(cou);
(3) 濾筒高度(du)小,安裝維修工作量(liang)小;
(4) 與同體積(ji)袋式除塵器比較,過(guo)濾(lv)面(mian)積(ji)相對較大,過(guo)濾(lv)風速較小,阻力不大;
(5) 清灰(hui)(hui)采用分室(shi)離線(xian)定時脈沖(chong)自動循環(huan)清灰(hui)(hui),清灰(hui)(hui)過(guo)程由脈沖(chong)控制儀自動控制。每個除塵(chen)室(shi)內設(she)(she)置(zhi)多個濾筒(tong)以增加其有(you)效過(guo)濾面積,當某個除塵(chen)室(shi)內濾筒(tong)滿(man)足清灰(hui)(hui)設(she)(she)定要(yao)求時,即啟動噴吹裝置(zhi)進行清灰(hui)(hui),其他(ta)除塵(chen)室(shi)正(zheng)常工(gong)作,這樣既達到了清灰(hui)(hui)效果又(you)不影響設(she)(she)備運行,使除塵(chen)器可連續(xu)運轉;
(6) 除塵效率高(一(yi)般可達99.6%以上),操(cao)作方便;
(7)系統運行工況設有顯示、報警及自動調控系統。
治理效果:
(1)排風口粉塵濃度:<50mg/m3(符合《GB9078-1996工業爐窯大氣污染物排放標準》),理(li)想狀(zhuang)態下<25mg/m3;
(2)無可見粉塵(chen)(可見粉塵(chen)為1~10μm);
(3)煙(yan)氣黑度0級(ji);
(4)、排出(chu)為干(gan)燥風、無水霧。