密相氣力(li)輸送系列

氣力輸送原理

氣(qi)(qi)力輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)(song)(song)系(xi)統(tong)可(ke)分(fen)類(lei)為(wei)(wei)(wei)不同的(de)(de)(de)(de)(de)(de)流(liu)(liu)動型(xing)式(shi)(shi)，其中(zhong)兩種(zhong)(zhong)(zhong)主(zhu)要型(xing)式(shi)(shi)是(shi)(shi)：(a) 稀(xi)相(xiang)(xiang)(xiang)(xiang)輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)(song)(song)和(he)（b）密相(xiang)(xiang)(xiang)(xiang)輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)(song)(song)每種(zhong)(zhong)(zhong)流(liu)(liu)動型(xing)式(shi)(shi)可(ke)按物(wu)(wu)料(liao)(liao)與空氣(qi)(qi)的(de)(de)(de)(de)(de)(de)流(liu)(liu)量比率大小(xiao)分(fen)類(lei)，其比率也(ye)(ye)被(bei)稱(cheng)為(wei)(wei)(wei)“固氣(qi)(qi)比”： μ=ms/mf (1)許(xu)多稀(xi)相(xiang)(xiang)(xiang)(xiang)的(de)(de)(de)(de)(de)(de)運行范圍為(wei)(wei)(wei)0＜μ＜15，而(er)密相(xiang)(xiang)(xiang)(xiang)通常是(shi)(shi)μ＞15。圖(tu)1所示(shi)的(de)(de)(de)(de)(de)(de)是(shi)(shi)典型(xing)輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)(song)(song)狀態圖(tu)。稀(xi)相(xiang)(xiang)(xiang)(xiang)輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)(song)(song)可(ke)以(yi)被(bei)認為(wei)(wei)(wei)是(shi)(shi)一(yi)種(zhong)(zhong)(zhong)完(wan)全(quan)的(de)(de)(de)(de)(de)(de)懸(xuan)浮流(liu)(liu)，而(er)密相(xiang)(xiang)(xiang)(xiang)輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)(song)(song)通常被(bei)認為(wei)(wei)(wei)是(shi)(shi)非(fei)懸(xuan)浮流(liu)(liu)。然而(er)，如圖(tu)1所示(shi)，許(xu)多不同種(zhong)(zhong)(zhong)類(lei)的(de)(de)(de)(de)(de)(de)密相(xiang)(xiang)(xiang)(xiang)（非(fei)懸(xuan)浮流(liu)(liu)）依靠(kao)散料(liao)(liao)的(de)(de)(de)(de)(de)(de)料(liao)(liao)性(xing)和(he)流(liu)(liu)動性(xing)存在。密相(xiang)(xiang)(xiang)(xiang)輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)(song)(song)同樣也(ye)(ye)能被(bei)定義為(wei)(wei)(wei)輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)(song)(song)物(wu)(wu)料(liao)(liao)完(wan)全(quan)填滿管(guan)(guan)道(dao)截面(mian)(mian)的(de)(de)(de)(de)(de)(de)一(yi)種(zhong)(zhong)(zhong)輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)(song)(song)方式(shi)(shi)。稀(xi)相(xiang)(xiang)(xiang)(xiang)輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)(song)(song)通常需要使(shi)用(yong)大量的(de)(de)(de)(de)(de)(de)高(gao)速(su)(su)氣(qi)(qi)體。氣(qi)(qi)流(liu)(liu)依靠(kao)升力和(he)推動力以(yi)離(li)散粒子的(de)(de)(de)(de)(de)(de)形(xing)式(shi)(shi)攜帶著物(wu)(wu)料(liao)(liao)。參考圖(tu)1中(zhong)所述的(de)(de)(de)(de)(de)(de)“懸(xuan)浮流(liu)(liu)”，稀(xi)相(xiang)(xiang)(xiang)(xiang)系(xi)統(tong)通常是(shi)(shi)最為(wei)(wei)(wei)被(bei)廣泛(fan)應(ying)用(yong)的(de)(de)(de)(de)(de)(de)氣(qi)(qi)力輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)(song)(song)系(xi)統(tong)。由于稀(xi)相(xiang)(xiang)(xiang)(xiang)系(xi)統(tong)設計的(de)(de)(de)(de)(de)(de)相(xiang)(xiang)(xiang)(xiang)對簡(jian)單性(xing)，它(ta)們同時也(ye)(ye)被(bei)頻繁的(de)(de)(de)(de)(de)(de)應(ying)用(yong)在工業領(ling)域。輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)(song)(song)氣(qi)(qi)體的(de)(de)(de)(de)(de)(de)速(su)(su)度(du)(du)(du)減(jian)少(shao)到比保持(chi)粒子懸(xuan)浮狀態的(de)(de)(de)(de)(de)(de)臨(lin)界值更小(xiao)時，導致物(wu)(wu)料(liao)(liao)在輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)(song)(song)管(guan)(guan)道(dao)的(de)(de)(de)(de)(de)(de)橫截面(mian)(mian)形(xing)成不均勻的(de)(de)(de)(de)(de)(de)分(fen)布。臨(lin)界氣(qi)(qi)體速(su)(su)度(du)(du)(du)被(bei)稱(cheng)為(wei)(wei)(wei)是(shi)(shi)水平輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)(song)(song)的(de)(de)(de)(de)(de)(de)跳(tiao)躍速(su)(su)度(du)(du)(du)，垂直輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)(song)(song)時堵塞。當水平管(guan)(guan)道(dao)中(zhong)的(de)(de)(de)(de)(de)(de)物(wu)(wu)料(liao)(liao)表面(mian)(mian)氣(qi)(qi)體速(su)(su)度(du)(du)(du)低于突變速(su)(su)度(du)(du)(du)時，輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)(song)(song)將會以(yi)低流(liu)(liu)量通過管(guan)(guan)道(dao)橫截面(mian)(mian)的(de)(de)(de)(de)(de)(de)上部(bu)，在管(guan)(guan)道(dao)的(de)(de)(de)(de)(de)(de)剩(sheng)余部(bu)分(fen)以(yi)高(gao)濃度(du)(du)(du)低速(su)(su)度(du)(du)(du)的(de)(de)(de)(de)(de)(de)形(xing)式(shi)(shi)填充。有時沿管(guan)(guan)道(dao)的(de)(de)(de)(de)(de)(de)橫截面(mian)(mian)會被(bei)填滿，而(er)有時只是(shi)(shi)部(bu)分(fen)被(bei)填滿.

實際應用(yong)(yong)中(zhong), 按照氣力驅動(dong)形式可(ke)以分為(wei)負壓(ya)(ya)和正壓(ya)(ya)氣力輸(shu)(shu)送(song)(song)(song), 在這兩(liang)種(zhong)輸(shu)(shu)送(song)(song)(song)系統中(zhong), 根據(ju)流(liu)動(dong)狀態(tai)圖再區分分為(wei)稀相(xiang), 密相(xiang)和流(liu)化態(tai)輸(shu)(shu)送(song)(song)(song)系統. 除此(ci)之外,根據(ju)喂料不同(tong)分為(wei)連(lian)續和批次輸(shu)(shu)送(song)(song)(song). 在高壓(ya)(ya)密相(xiang)輸(shu)(shu)送(song)(song)(song)技術中(zhong)常采用(yong)(yong)批次的壓(ya)(ya)力罐(guan)進(jin)行高壓(ya)(ya)輸(shu)(shu)送(song)(song)(song), 同(tong)時, 可(ke)以組合兩(liang)個壓(ya)(ya)力罐(guan)設計達到連(lian)續的輸(shu)(shu)送(song)(song)(song).

密相氣力輸送特(te)點:

● 用(yong)氣量(liang)小, 節能

● 無殘留輸送

● 不(bu)堵塞(sai), 運(yun)行可靠

● 維護費用低

● 適合于各類(lei)粉粒物料(liao)

● 壓力(li)至0. 6m p a可(ke)調

● 適(shi)合于柔性(xing)化自動生產中的(de)物(wu)料高效(xiao)輸送