布袋除塵技術(shu)的(de)案例(li)在水泥(ni)窯頭冷(leng)卻機(ji)廢氣除塵中己有的(de)采用(yong),但其廢氣降溫(wen)(wen)(wen)(wen)的(de)方(fang)式(shi)是(shi)非(fei)常令人,因為(wei)布袋的(de)選擇(ze)溫(wen)(wen)(wen)(wen)度(du)都低于200攝氏度(du)。所以(yi)要(yao)不(bu)燒袋將廢氣溫(wen)(wen)(wen)(wen)度(du)由250℃(瞬(shun)時(shi)450℃)降到200℃以(yi)下(xia),降溫(wen)(wen)(wen)(wen)方(fang)式(shi)有噴水降溫(wen)(wen)(wen)(wen)法(fa)(fa)(fa),摻(chan)(鼓(gu))冷(leng)風法(fa)(fa)(fa)、空(kong)氣熱(re)交(jiao)換器(qi)冷(leng)卻法(fa)(fa)(fa)。而摻(chan)(鼓(gu))冷(leng)風法(fa)(fa)(fa)則(ze)使(shi)系(xi)統(tong)瞬(shun)時(shi)風量增大造成系(xi)統(tong)不(bu)穩定,甚至(zhi)發生危險。噴水降溫(wen)(wen)(wen)(wen)法(fa)(fa)(fa)確是(shi)不(bu)錯的(de)選擇(ze),它降溫(wen)(wen)(wen)(wen)效(xiao)果(guo)好,反應。主要(yao)是(shi)基(ji)于目(mu)前許多水泥(ni)系(xi)統(tong)都加入了余熱(re)發電鍋爐系(xi)統(tong),一般情況下(xia)降溫(wen)(wen)(wen)(wen)系(xi)統(tong)是(shi)短期和應急(ji)應用(yong)。
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