密(mi)相氣(qi)力輸送(song)系列

氣(qi)力(li)輸送原理

氣力(li)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)系(xi)(xi)統(tong)(tong)可(ke)分類(lei)(lei)為(wei)不同(tong)的(de)(de)(de)(de)(de)(de)(de)(de)流動(dong)型(xing)式(shi)，其中(zhong)兩種(zhong)主要型(xing)式(shi)是(shi)：(a) 稀(xi)(xi)(xi)(xi)(xi)相(xiang)(xiang)(xiang)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)和（b）密相(xiang)(xiang)(xiang)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)每種(zhong)流動(dong)型(xing)式(shi)可(ke)按物(wu)(wu)料(liao)(liao)與空(kong)氣的(de)(de)(de)(de)(de)(de)(de)(de)流量比率大小分類(lei)(lei)，其比率也(ye)(ye)被(bei)(bei)稱(cheng)為(wei)“固氣比”： μ=ms/mf (1)許(xu)多稀(xi)(xi)(xi)(xi)(xi)相(xiang)(xiang)(xiang)的(de)(de)(de)(de)(de)(de)(de)(de)運(yun)行范圍為(wei)0＜μ＜15，而密相(xiang)(xiang)(xiang)通(tong)常(chang)是(shi)μ＞15。圖1所(suo)示的(de)(de)(de)(de)(de)(de)(de)(de)是(shi)典型(xing)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)狀態圖。稀(xi)(xi)(xi)(xi)(xi)相(xiang)(xiang)(xiang)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)可(ke)以被(bei)(bei)認(ren)為(wei)是(shi)一種(zhong)完(wan)全(quan)的(de)(de)(de)(de)(de)(de)(de)(de)懸浮(fu)流，而密相(xiang)(xiang)(xiang)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)通(tong)常(chang)被(bei)(bei)認(ren)為(wei)是(shi)非(fei)懸浮(fu)流。然而，如圖1所(suo)示，許(xu)多不同(tong)種(zhong)類(lei)(lei)的(de)(de)(de)(de)(de)(de)(de)(de)密相(xiang)(xiang)(xiang)（非(fei)懸浮(fu)流）依靠散料(liao)(liao)的(de)(de)(de)(de)(de)(de)(de)(de)料(liao)(liao)性(xing)和流動(dong)性(xing)存在(zai)(zai)(zai)。密相(xiang)(xiang)(xiang)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)同(tong)樣也(ye)(ye)能(neng)被(bei)(bei)定(ding)義為(wei)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)物(wu)(wu)料(liao)(liao)完(wan)全(quan)填(tian)滿(man)管道(dao)(dao)(dao)截(jie)面的(de)(de)(de)(de)(de)(de)(de)(de)一種(zhong)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)方(fang)式(shi)。稀(xi)(xi)(xi)(xi)(xi)相(xiang)(xiang)(xiang)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)通(tong)常(chang)需要使(shi)用大量的(de)(de)(de)(de)(de)(de)(de)(de)高(gao)速(su)(su)(su)氣體(ti)。氣流依靠升力(li)和推動(dong)力(li)以離散粒子的(de)(de)(de)(de)(de)(de)(de)(de)形(xing)式(shi)攜帶著物(wu)(wu)料(liao)(liao)。參考圖1中(zhong)所(suo)述的(de)(de)(de)(de)(de)(de)(de)(de)“懸浮(fu)流”，稀(xi)(xi)(xi)(xi)(xi)相(xiang)(xiang)(xiang)系(xi)(xi)統(tong)(tong)通(tong)常(chang)是(shi)最為(wei)被(bei)(bei)廣泛應用的(de)(de)(de)(de)(de)(de)(de)(de)氣力(li)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)系(xi)(xi)統(tong)(tong)。由于(yu)稀(xi)(xi)(xi)(xi)(xi)相(xiang)(xiang)(xiang)系(xi)(xi)統(tong)(tong)設計的(de)(de)(de)(de)(de)(de)(de)(de)相(xiang)(xiang)(xiang)對簡單性(xing)，它們同(tong)時也(ye)(ye)被(bei)(bei)頻繁的(de)(de)(de)(de)(de)(de)(de)(de)應用在(zai)(zai)(zai)工業(ye)領(ling)域。輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)氣體(ti)的(de)(de)(de)(de)(de)(de)(de)(de)速(su)(su)(su)度減少到比保持粒子懸浮(fu)狀態的(de)(de)(de)(de)(de)(de)(de)(de)臨(lin)界值(zhi)更小時，導致物(wu)(wu)料(liao)(liao)在(zai)(zai)(zai)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)管道(dao)(dao)(dao)的(de)(de)(de)(de)(de)(de)(de)(de)橫(heng)截(jie)面形(xing)成不均(jun)勻的(de)(de)(de)(de)(de)(de)(de)(de)分布。臨(lin)界氣體(ti)速(su)(su)(su)度被(bei)(bei)稱(cheng)為(wei)是(shi)水(shui)平輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)的(de)(de)(de)(de)(de)(de)(de)(de)跳躍速(su)(su)(su)度，垂直輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)時堵塞(sai)。當水(shui)平管道(dao)(dao)(dao)中(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)物(wu)(wu)料(liao)(liao)表面氣體(ti)速(su)(su)(su)度低于(yu)突變(bian)速(su)(su)(su)度時，輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)將會以低流量通(tong)過管道(dao)(dao)(dao)橫(heng)截(jie)面的(de)(de)(de)(de)(de)(de)(de)(de)上(shang)部(bu)(bu)，在(zai)(zai)(zai)管道(dao)(dao)(dao)的(de)(de)(de)(de)(de)(de)(de)(de)剩余部(bu)(bu)分以高(gao)濃度低速(su)(su)(su)度的(de)(de)(de)(de)(de)(de)(de)(de)形(xing)式(shi)填(tian)充。有(you)(you)時沿管道(dao)(dao)(dao)的(de)(de)(de)(de)(de)(de)(de)(de)橫(heng)截(jie)面會被(bei)(bei)填(tian)滿(man)，而有(you)(you)時只是(shi)部(bu)(bu)分被(bei)(bei)填(tian)滿(man).

實際應用(yong)中(zhong)(zhong), 按(an)照氣力驅動(dong)形式可以分為負(fu)壓(ya)(ya)和(he)正壓(ya)(ya)氣力輸(shu)送(song), 在(zai)(zai)這兩種輸(shu)送(song)系(xi)統中(zhong)(zhong), 根(gen)(gen)據(ju)流(liu)動(dong)狀態圖再區分分為稀相(xiang), 密相(xiang)和(he)流(liu)化態輸(shu)送(song)系(xi)統. 除(chu)此之(zhi)外,根(gen)(gen)據(ju)喂(wei)料不(bu)同分為連(lian)續(xu)和(he)批次(ci)輸(shu)送(song). 在(zai)(zai)高壓(ya)(ya)密相(xiang)輸(shu)送(song)技術中(zhong)(zhong)常采(cai)用(yong)批次(ci)的(de)壓(ya)(ya)力罐進行高壓(ya)(ya)輸(shu)送(song), 同時, 可以組(zu)合兩個壓(ya)(ya)力罐設(she)計達到連(lian)續(xu)的(de)輸(shu)送(song).

密相氣力輸送特點:

● 用(yong)氣量小(xiao), 節(jie)能

● 無殘留輸送

● 不(bu)堵塞, 運行可靠

● 維護費用低

● 適合于各類粉粒物料

● 壓力(li)至(zhi)0. 6m p a可調

● 適合于柔性化自動生產中的(de)物料高效輸送(song)