密相(xiang)氣力(li)輸(shu)送(song)系列(lie)

氣力(li)輸送原理

氣(qi)(qi)力輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)系(xi)(xi)統(tong)(tong)可分(fen)(fen)(fen)(fen)類(lei)為(wei)(wei)不同的(de)(de)(de)流(liu)動(dong)型(xing)式(shi)，其(qi)中兩種(zhong)主要型(xing)式(shi)是(shi)(shi)：(a) 稀相(xiang)(xiang)(xiang)輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)和(he)（b）密相(xiang)(xiang)(xiang)輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)每種(zhong)流(liu)動(dong)型(xing)式(shi)可按物(wu)(wu)料(liao)(liao)與空(kong)氣(qi)(qi)的(de)(de)(de)流(liu)量比(bi)率大小分(fen)(fen)(fen)(fen)類(lei)，其(qi)比(bi)率也(ye)(ye)被(bei)(bei)(bei)(bei)稱(cheng)為(wei)(wei)“固氣(qi)(qi)比(bi)”： μ=ms/mf (1)許(xu)多(duo)稀相(xiang)(xiang)(xiang)的(de)(de)(de)運行范(fan)圍為(wei)(wei)0＜μ＜15，而密相(xiang)(xiang)(xiang)通(tong)(tong)常是(shi)(shi)μ＞15。圖(tu)1所(suo)示的(de)(de)(de)是(shi)(shi)典(dian)型(xing)輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)狀態圖(tu)。稀相(xiang)(xiang)(xiang)輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)可以被(bei)(bei)(bei)(bei)認(ren)為(wei)(wei)是(shi)(shi)一(yi)種(zhong)完全(quan)的(de)(de)(de)懸(xuan)浮(fu)(fu)流(liu)，而密相(xiang)(xiang)(xiang)輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)通(tong)(tong)常被(bei)(bei)(bei)(bei)認(ren)為(wei)(wei)是(shi)(shi)非懸(xuan)浮(fu)(fu)流(liu)。然而，如(ru)圖(tu)1所(suo)示，許(xu)多(duo)不同種(zhong)類(lei)的(de)(de)(de)密相(xiang)(xiang)(xiang)（非懸(xuan)浮(fu)(fu)流(liu)）依靠散料(liao)(liao)的(de)(de)(de)料(liao)(liao)性(xing)和(he)流(liu)動(dong)性(xing)存在。密相(xiang)(xiang)(xiang)輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)同樣也(ye)(ye)能被(bei)(bei)(bei)(bei)定義為(wei)(wei)輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)物(wu)(wu)料(liao)(liao)完全(quan)填滿管道截(jie)(jie)面(mian)(mian)的(de)(de)(de)一(yi)種(zhong)輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)方式(shi)。稀相(xiang)(xiang)(xiang)輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)通(tong)(tong)常需要使用(yong)大量的(de)(de)(de)高(gao)速(su)氣(qi)(qi)體。氣(qi)(qi)流(liu)依靠升(sheng)力和(he)推動(dong)力以離(li)散粒(li)子(zi)的(de)(de)(de)形(xing)式(shi)攜帶著物(wu)(wu)料(liao)(liao)。參(can)考圖(tu)1中所(suo)述的(de)(de)(de)“懸(xuan)浮(fu)(fu)流(liu)”，稀相(xiang)(xiang)(xiang)系(xi)(xi)統(tong)(tong)通(tong)(tong)常是(shi)(shi)最為(wei)(wei)被(bei)(bei)(bei)(bei)廣(guang)泛應(ying)用(yong)的(de)(de)(de)氣(qi)(qi)力輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)系(xi)(xi)統(tong)(tong)。由于(yu)稀相(xiang)(xiang)(xiang)系(xi)(xi)統(tong)(tong)設(she)計的(de)(de)(de)相(xiang)(xiang)(xiang)對(dui)簡(jian)單性(xing)，它們同時(shi)也(ye)(ye)被(bei)(bei)(bei)(bei)頻(pin)繁的(de)(de)(de)應(ying)用(yong)在工業領域。輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)氣(qi)(qi)體的(de)(de)(de)速(su)度(du)(du)減少到比(bi)保(bao)持粒(li)子(zi)懸(xuan)浮(fu)(fu)狀態的(de)(de)(de)臨界(jie)值更(geng)小時(shi)，導致物(wu)(wu)料(liao)(liao)在輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)管道的(de)(de)(de)橫截(jie)(jie)面(mian)(mian)形(xing)成(cheng)不均勻的(de)(de)(de)分(fen)(fen)(fen)(fen)布。臨界(jie)氣(qi)(qi)體速(su)度(du)(du)被(bei)(bei)(bei)(bei)稱(cheng)為(wei)(wei)是(shi)(shi)水平輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)的(de)(de)(de)跳躍(yue)速(su)度(du)(du)，垂(chui)直輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)時(shi)堵塞。當水平管道中的(de)(de)(de)物(wu)(wu)料(liao)(liao)表面(mian)(mian)氣(qi)(qi)體速(su)度(du)(du)低(di)于(yu)突變速(su)度(du)(du)時(shi)，輸(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)(song)將會以低(di)流(liu)量通(tong)(tong)過(guo)管道橫截(jie)(jie)面(mian)(mian)的(de)(de)(de)上部(bu)(bu)，在管道的(de)(de)(de)剩(sheng)余部(bu)(bu)分(fen)(fen)(fen)(fen)以高(gao)濃度(du)(du)低(di)速(su)度(du)(du)的(de)(de)(de)形(xing)式(shi)填充。有(you)時(shi)沿管道的(de)(de)(de)橫截(jie)(jie)面(mian)(mian)會被(bei)(bei)(bei)(bei)填滿，而有(you)時(shi)只是(shi)(shi)部(bu)(bu)分(fen)(fen)(fen)(fen)被(bei)(bei)(bei)(bei)填滿.

實際應(ying)用(yong)中, 按照氣力驅(qu)動(dong)(dong)形式(shi)可以分(fen)為(wei)負壓(ya)和正壓(ya)氣力輸(shu)(shu)送, 在這(zhe)兩種(zhong)輸(shu)(shu)送系統中, 根(gen)據流動(dong)(dong)狀態圖再區分(fen)分(fen)為(wei)稀相(xiang), 密相(xiang)和流化態輸(shu)(shu)送系統. 除此之外,根(gen)據喂料不同分(fen)為(wei)連續和批次輸(shu)(shu)送. 在高壓(ya)密相(xiang)輸(shu)(shu)送技術中常采(cai)用(yong)批次的壓(ya)力罐(guan)進行高壓(ya)輸(shu)(shu)送, 同時, 可以組合兩個壓(ya)力罐(guan)設(she)計(ji)達到連續的輸(shu)(shu)送.

密相氣力輸(shu)送特(te)點(dian):

● 用氣量(liang)小, 節(jie)能

● 無殘留輸送

● 不堵(du)塞(sai), 運行(xing)可靠(kao)

● 維護費(fei)用低

● 適合于(yu)各類(lei)粉(fen)粒物料(liao)

● 壓力(li)至0. 6m p a可調(diao)

● 適合(he)于柔(rou)性化(hua)自(zi)動生(sheng)產(chan)中(zhong)的物(wu)料高效輸(shu)送