密相氣力(li)輸(shu)送系列

氣(qi)力輸(shu)送原(yuan)理

氣(qi)(qi)力(li)(li)輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)(song)系(xi)統可分(fen)類為(wei)不(bu)同(tong)(tong)的(de)(de)(de)(de)(de)流(liu)(liu)(liu)動(dong)型(xing)式，其中(zhong)兩(liang)種(zhong)主要(yao)型(xing)式是(shi)：(a) 稀相(xiang)(xiang)(xiang)輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)(song)和（b）密(mi)相(xiang)(xiang)(xiang)輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)(song)每種(zhong)流(liu)(liu)(liu)動(dong)型(xing)式可按(an)物(wu)(wu)料(liao)(liao)與空氣(qi)(qi)的(de)(de)(de)(de)(de)流(liu)(liu)(liu)量(liang)比(bi)率大小分(fen)類，其比(bi)率也被(bei)稱為(wei)“固氣(qi)(qi)比(bi)”： μ=ms/mf (1)許(xu)多稀相(xiang)(xiang)(xiang)的(de)(de)(de)(de)(de)運(yun)行范圍為(wei)0＜μ＜15，而(er)密(mi)相(xiang)(xiang)(xiang)通(tong)常(chang)是(shi)μ＞15。圖(tu)(tu)1所示(shi)(shi)的(de)(de)(de)(de)(de)是(shi)典型(xing)輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)(song)狀態圖(tu)(tu)。稀相(xiang)(xiang)(xiang)輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)(song)可以(yi)被(bei)認為(wei)是(shi)一種(zhong)完全(quan)的(de)(de)(de)(de)(de)懸(xuan)浮(fu)流(liu)(liu)(liu)，而(er)密(mi)相(xiang)(xiang)(xiang)輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)(song)通(tong)常(chang)被(bei)認為(wei)是(shi)非懸(xuan)浮(fu)流(liu)(liu)(liu)。然而(er)，如(ru)圖(tu)(tu)1所示(shi)(shi)，許(xu)多不(bu)同(tong)(tong)種(zhong)類的(de)(de)(de)(de)(de)密(mi)相(xiang)(xiang)(xiang)（非懸(xuan)浮(fu)流(liu)(liu)(liu)）依靠散料(liao)(liao)的(de)(de)(de)(de)(de)料(liao)(liao)性(xing)和流(liu)(liu)(liu)動(dong)性(xing)存(cun)在(zai)(zai)(zai)。密(mi)相(xiang)(xiang)(xiang)輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)(song)同(tong)(tong)樣也能(neng)被(bei)定義為(wei)輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)(song)物(wu)(wu)料(liao)(liao)完全(quan)填(tian)(tian)滿(man)管(guan)(guan)(guan)(guan)道(dao)截面(mian)(mian)(mian)的(de)(de)(de)(de)(de)一種(zhong)輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)(song)方式。稀相(xiang)(xiang)(xiang)輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)(song)通(tong)常(chang)需(xu)要(yao)使(shi)用(yong)(yong)大量(liang)的(de)(de)(de)(de)(de)高(gao)(gao)速(su)(su)(su)(su)氣(qi)(qi)體(ti)。氣(qi)(qi)流(liu)(liu)(liu)依靠升力(li)(li)和推動(dong)力(li)(li)以(yi)離散粒子的(de)(de)(de)(de)(de)形式攜帶著物(wu)(wu)料(liao)(liao)。參考圖(tu)(tu)1中(zhong)所述的(de)(de)(de)(de)(de)“懸(xuan)浮(fu)流(liu)(liu)(liu)”，稀相(xiang)(xiang)(xiang)系(xi)統通(tong)常(chang)是(shi)最(zui)為(wei)被(bei)廣泛應用(yong)(yong)的(de)(de)(de)(de)(de)氣(qi)(qi)力(li)(li)輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)(song)系(xi)統。由于(yu)稀相(xiang)(xiang)(xiang)系(xi)統設計的(de)(de)(de)(de)(de)相(xiang)(xiang)(xiang)對簡單性(xing)，它(ta)們同(tong)(tong)時也被(bei)頻繁的(de)(de)(de)(de)(de)應用(yong)(yong)在(zai)(zai)(zai)工業領域。輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)(song)氣(qi)(qi)體(ti)的(de)(de)(de)(de)(de)速(su)(su)(su)(su)度(du)減少到比(bi)保持粒子懸(xuan)浮(fu)狀態的(de)(de)(de)(de)(de)臨(lin)界值更小時，導(dao)致物(wu)(wu)料(liao)(liao)在(zai)(zai)(zai)輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)(song)管(guan)(guan)(guan)(guan)道(dao)的(de)(de)(de)(de)(de)橫(heng)截面(mian)(mian)(mian)形成不(bu)均勻的(de)(de)(de)(de)(de)分(fen)布。臨(lin)界氣(qi)(qi)體(ti)速(su)(su)(su)(su)度(du)被(bei)稱為(wei)是(shi)水(shui)平輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)(song)的(de)(de)(de)(de)(de)跳躍(yue)速(su)(su)(su)(su)度(du)，垂直輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)(song)時堵(du)塞。當水(shui)平管(guan)(guan)(guan)(guan)道(dao)中(zhong)的(de)(de)(de)(de)(de)物(wu)(wu)料(liao)(liao)表面(mian)(mian)(mian)氣(qi)(qi)體(ti)速(su)(su)(su)(su)度(du)低于(yu)突變速(su)(su)(su)(su)度(du)時，輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)(song)將(jiang)會(hui)以(yi)低流(liu)(liu)(liu)量(liang)通(tong)過管(guan)(guan)(guan)(guan)道(dao)橫(heng)截面(mian)(mian)(mian)的(de)(de)(de)(de)(de)上部(bu)，在(zai)(zai)(zai)管(guan)(guan)(guan)(guan)道(dao)的(de)(de)(de)(de)(de)剩(sheng)余部(bu)分(fen)以(yi)高(gao)(gao)濃度(du)低速(su)(su)(su)(su)度(du)的(de)(de)(de)(de)(de)形式填(tian)(tian)充。有時沿管(guan)(guan)(guan)(guan)道(dao)的(de)(de)(de)(de)(de)橫(heng)截面(mian)(mian)(mian)會(hui)被(bei)填(tian)(tian)滿(man)，而(er)有時只是(shi)部(bu)分(fen)被(bei)填(tian)(tian)滿(man).

實(shi)際應用(yong)中(zhong), 按照氣力(li)驅動(dong)形(xing)式可(ke)以分(fen)為(wei)負壓(ya)和正壓(ya)氣力(li)輸(shu)送(song)(song), 在這(zhe)兩種輸(shu)送(song)(song)系(xi)統(tong)(tong)中(zhong), 根據流動(dong)狀態(tai)(tai)圖(tu)再(zai)區分(fen)分(fen)為(wei)稀相(xiang), 密相(xiang)和流化態(tai)(tai)輸(shu)送(song)(song)系(xi)統(tong)(tong). 除此之(zhi)外,根據喂料不同分(fen)為(wei)連續和批次(ci)輸(shu)送(song)(song). 在高(gao)壓(ya)密相(xiang)輸(shu)送(song)(song)技術中(zhong)常采用(yong)批次(ci)的壓(ya)力(li)罐(guan)進行高(gao)壓(ya)輸(shu)送(song)(song), 同時, 可(ke)以組(zu)合兩個壓(ya)力(li)罐(guan)設計達到(dao)連續的輸(shu)送(song)(song).

密相氣(qi)力輸送特點(dian):

● 用氣(qi)量小, 節能

● 無殘留輸送

● 不堵塞, 運行可靠(kao)

● 維護費用低

● 適合于各類(lei)粉粒物料

● 壓(ya)力(li)至0. 6m p a可調

● 適合于柔性化自動生產(chan)中的物料高效輸送