密相氣力輸(shu)送系列

氣力輸(shu)送原(yuan)理

氣(qi)力(li)(li)輸送(song)(song)(song)(song)系(xi)(xi)統可分類為(wei)(wei)不同的(de)(de)(de)(de)(de)(de)(de)流(liu)動(dong)(dong)型式(shi)，其(qi)中兩種(zhong)(zhong)(zhong)主(zhu)要(yao)型式(shi)是(shi)：(a) 稀相(xiang)輸送(song)(song)(song)(song)和(he)（b）密(mi)(mi)(mi)(mi)相(xiang)輸送(song)(song)(song)(song)每(mei)種(zhong)(zhong)(zhong)流(liu)動(dong)(dong)型式(shi)可按物料(liao)(liao)與(yu)空氣(qi)的(de)(de)(de)(de)(de)(de)(de)流(liu)量(liang)比(bi)(bi)率大(da)小(xiao)分類，其(qi)比(bi)(bi)率也(ye)被(bei)稱(cheng)為(wei)(wei)“固氣(qi)比(bi)(bi)”： μ=ms/mf (1)許多稀相(xiang)的(de)(de)(de)(de)(de)(de)(de)運行(xing)范(fan)圍為(wei)(wei)0＜μ＜15，而密(mi)(mi)(mi)(mi)相(xiang)通(tong)常(chang)是(shi)μ＞15。圖1所示(shi)的(de)(de)(de)(de)(de)(de)(de)是(shi)典型輸送(song)(song)(song)(song)狀態圖。稀相(xiang)輸送(song)(song)(song)(song)可以(yi)被(bei)認為(wei)(wei)是(shi)一種(zhong)(zhong)(zhong)完全(quan)的(de)(de)(de)(de)(de)(de)(de)懸(xuan)(xuan)浮流(liu)，而密(mi)(mi)(mi)(mi)相(xiang)輸送(song)(song)(song)(song)通(tong)常(chang)被(bei)認為(wei)(wei)是(shi)非(fei)懸(xuan)(xuan)浮流(liu)。然而，如圖1所示(shi)，許多不同種(zhong)(zhong)(zhong)類的(de)(de)(de)(de)(de)(de)(de)密(mi)(mi)(mi)(mi)相(xiang)（非(fei)懸(xuan)(xuan)浮流(liu)）依(yi)靠(kao)散料(liao)(liao)的(de)(de)(de)(de)(de)(de)(de)料(liao)(liao)性(xing)(xing)和(he)流(liu)動(dong)(dong)性(xing)(xing)存在(zai)(zai)(zai)。密(mi)(mi)(mi)(mi)相(xiang)輸送(song)(song)(song)(song)同樣也(ye)能被(bei)定(ding)義為(wei)(wei)輸送(song)(song)(song)(song)物料(liao)(liao)完全(quan)填(tian)滿(man)管(guan)(guan)道(dao)截(jie)面的(de)(de)(de)(de)(de)(de)(de)一種(zhong)(zhong)(zhong)輸送(song)(song)(song)(song)方式(shi)。稀相(xiang)輸送(song)(song)(song)(song)通(tong)常(chang)需(xu)要(yao)使用(yong)大(da)量(liang)的(de)(de)(de)(de)(de)(de)(de)高速(su)(su)(su)氣(qi)體(ti)(ti)(ti)。氣(qi)流(liu)依(yi)靠(kao)升(sheng)力(li)(li)和(he)推(tui)動(dong)(dong)力(li)(li)以(yi)離散粒子(zi)的(de)(de)(de)(de)(de)(de)(de)形(xing)(xing)式(shi)攜(xie)帶(dai)著物料(liao)(liao)。參(can)考(kao)圖1中所述的(de)(de)(de)(de)(de)(de)(de)“懸(xuan)(xuan)浮流(liu)”，稀相(xiang)系(xi)(xi)統通(tong)常(chang)是(shi)最為(wei)(wei)被(bei)廣泛應用(yong)的(de)(de)(de)(de)(de)(de)(de)氣(qi)力(li)(li)輸送(song)(song)(song)(song)系(xi)(xi)統。由于稀相(xiang)系(xi)(xi)統設計的(de)(de)(de)(de)(de)(de)(de)相(xiang)對簡(jian)單(dan)性(xing)(xing)，它們同時(shi)(shi)(shi)也(ye)被(bei)頻(pin)繁的(de)(de)(de)(de)(de)(de)(de)應用(yong)在(zai)(zai)(zai)工(gong)業領域。輸送(song)(song)(song)(song)氣(qi)體(ti)(ti)(ti)的(de)(de)(de)(de)(de)(de)(de)速(su)(su)(su)度減少到(dao)比(bi)(bi)保持粒子(zi)懸(xuan)(xuan)浮狀態的(de)(de)(de)(de)(de)(de)(de)臨界(jie)值更小(xiao)時(shi)(shi)(shi)，導致(zhi)物料(liao)(liao)在(zai)(zai)(zai)輸送(song)(song)(song)(song)管(guan)(guan)道(dao)的(de)(de)(de)(de)(de)(de)(de)橫(heng)截(jie)面形(xing)(xing)成不均勻(yun)的(de)(de)(de)(de)(de)(de)(de)分布。臨界(jie)氣(qi)體(ti)(ti)(ti)速(su)(su)(su)度被(bei)稱(cheng)為(wei)(wei)是(shi)水(shui)平輸送(song)(song)(song)(song)的(de)(de)(de)(de)(de)(de)(de)跳(tiao)躍速(su)(su)(su)度，垂(chui)直(zhi)輸送(song)(song)(song)(song)時(shi)(shi)(shi)堵(du)塞。當水(shui)平管(guan)(guan)道(dao)中的(de)(de)(de)(de)(de)(de)(de)物料(liao)(liao)表(biao)面氣(qi)體(ti)(ti)(ti)速(su)(su)(su)度低(di)于突變速(su)(su)(su)度時(shi)(shi)(shi)，輸送(song)(song)(song)(song)將會以(yi)低(di)流(liu)量(liang)通(tong)過管(guan)(guan)道(dao)橫(heng)截(jie)面的(de)(de)(de)(de)(de)(de)(de)上部(bu)，在(zai)(zai)(zai)管(guan)(guan)道(dao)的(de)(de)(de)(de)(de)(de)(de)剩余(yu)部(bu)分以(yi)高濃度低(di)速(su)(su)(su)度的(de)(de)(de)(de)(de)(de)(de)形(xing)(xing)式(shi)填(tian)充(chong)。有(you)時(shi)(shi)(shi)沿(yan)管(guan)(guan)道(dao)的(de)(de)(de)(de)(de)(de)(de)橫(heng)截(jie)面會被(bei)填(tian)滿(man)，而有(you)時(shi)(shi)(shi)只是(shi)部(bu)分被(bei)填(tian)滿(man).

實際應用中(zhong), 按照氣力(li)(li)驅動形式可以(yi)分(fen)(fen)為負壓(ya)和正壓(ya)氣力(li)(li)輸(shu)(shu)(shu)(shu)送(song)(song), 在這(zhe)兩種輸(shu)(shu)(shu)(shu)送(song)(song)系統中(zhong), 根據流(liu)動狀態(tai)圖再區分(fen)(fen)分(fen)(fen)為稀相, 密相和流(liu)化態(tai)輸(shu)(shu)(shu)(shu)送(song)(song)系統. 除(chu)此之外,根據喂(wei)料不同(tong)分(fen)(fen)為連(lian)(lian)續和批(pi)次輸(shu)(shu)(shu)(shu)送(song)(song). 在高(gao)(gao)壓(ya)密相輸(shu)(shu)(shu)(shu)送(song)(song)技術(shu)中(zhong)常采用批(pi)次的壓(ya)力(li)(li)罐進行高(gao)(gao)壓(ya)輸(shu)(shu)(shu)(shu)送(song)(song), 同(tong)時, 可以(yi)組合兩個壓(ya)力(li)(li)罐設計達到連(lian)(lian)續的輸(shu)(shu)(shu)(shu)送(song)(song).

密相氣力輸送(song)特(te)點(dian):

● 用氣量(liang)小, 節能

● 無殘留輸送

● 不(bu)堵塞, 運行可靠(kao)

● 維護費用低

● 適合于各類粉粒物(wu)料(liao)

● 壓力(li)至(zhi)0. 6m p a可調

● 適(shi)合于柔性化自動(dong)生產中的物料(liao)高效輸送