管道是氣力輸送系統(tong)(tong)的重(zhong)要組(zu)成部分,在(zai)整個(ge)系統(tong)(tong)中(zhong)(zhong)占(zhan)的比例也比較重(zhong),管(guan)道也是整個(ge)系統(tong)(tong)中(zhong)(zhong)最容易(yi)出現(xian)問(wen)題(ti)的地方(fang),那么(me)在(zai)管(guan)道的選擇方(fang)面哪種規格的管(guan)道在(zai)氣力(li)說那個(ge)系統(tong)(tong)中(zhong)(zhong)的使用最為經濟?本文來分析(xi)這個(ge)問(wen)題(ti)。
在氣力(li)(li)輸(shu)送(song)(song)系統中(zhong),對于給定的(de)(de)物料輸(shu)送(song)(song)能(neng)力(li)(li)和(he)輸(shu)送(song)(song)距離,可供選擇的(de)(de)管(guan)道管(guan)徑規格(ge)、輸(shu)送(song)(song)方式和(he)供應壓力(li)(li)有(you)很廣的(de)(de)范圍,選擇哪種規格(ge)的(de)(de)管(guan)徑和(he)供應壓力(li)(li)最經濟,需(xu)要(yao)綜(zong)合考慮(lv)工(gong)廠的(de)(de)建(jian)設費用和(he)操(cao)作(zuo)費用,操(cao)作(zuo)費用主要(yao)是由(you)能(neng)耗造成。
通過(guo)比較可知(zhi),相(xiang)對于低(di)(di)壓(ya)稀相(xiang)輸(shu)(shu)送(song),高壓(ya)密(mi)相(xiang)輸(shu)(shu)送(song)速度(du)低(di)(di)、能耗低(di)(di),因而操(cao)作(zuo)費用(yong)(yong)(yong)低(di)(di);密(mi)相(xiang)輸(shu)(shu)送(song)所用(yong)(yong)(yong)管徑小,除塵設(she)備也較小,但(dan)發送(song)裝置(zhi)(發送(song)罐)相(xiang)對于低(di)(di)壓(ya)所用(yong)(yong)(yong)的旋(xuan)轉閥(fa)較昂貴,所以兩種(zhong)方式的建設(she)費用(yong)(yong)(yong)需要綜合考慮。
對于輸(shu)送(song)(song)物料來說,氣(qi)力(li)輸(shu)送(song)(song)形式(shi)有多種選擇,工(gong)程(cheng)上常見的(de)氣(qi)力(li)輸(shu)送(song)(song)形式(shi)為稀相(xiang)輸(shu)送(song)(song)和(he)密相(xiang)輸(shu)送(song)(song),熟知(zhi)稀相(xiang)和(he)密相(xiang)輸(shu)送(song)(song)的(de)適用(yong)場合(he)和(he)能(neng)耗大小是合(he)理選擇輸(shu)送(song)(song)形式(shi)、降低輸(shu)送(song)(song)成本的(de)前提。
選擇合適(shi)的(de)管(guan)道直徑與供應(ying)壓(ya)力(li)使之系統(tong)應(ying)用最經濟。
除塵器是氣力(li)輸送(song)中(zhong)(zhong)的(de)重要組成部件,除塵器一(yi)旦發(fa)生故(gu)(gu)障就(jiu)會影響到系統的(de)正常輸送(song)工作(zuo),通常情況下氣力(li)輸送(song)系統中(zhong)(zhong)除塵器會出現哪些(xie)故(gu)(gu)障?本(ben)文列數了(le)以下四條,希望可(ke)以及早預防:
1)除(chu)塵器運行阻(zu)力大;
2)除塵(chen)器的脈沖(chong)閥不工作;
3)除塵器的(de)提升閥不工作(zuo);
4)除塵器濾袋損壞。
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