粉體氣力輸送機的(de)動(dong)力(li)源(風(feng)機(ji)、鼓風(feng)機(ji)、壓(ya)(ya)縮(suo)機(ji));動(dong)力(li)源或氣(qi)(qi)(qi)(qi)源是氣(qi)(qi)(qi)(qi)力(li)輸(shu)(shu)送(song)(song)系統(tong)的(de)主要組成部分。必(bi)須了解氣(qi)(qi)(qi)(qi)力(li)輸(shu)(shu)送(song)(song)機(ji)在(zai)稀相(xiang)或密相(xiang)中有(you)效地輸(shu)(shu)送(song)(song)物料(liao)所(suo)需的(de)氣(qi)(qi)(qi)(qi)體流(liu)量。如(ru)果設置不當,可能(neng)會(hui)導致容量減少。仔細(xi)的(de)計(ji)算或實驗必(bi)須對散裝固(gu)體和輸(shu)(shu)送(song)(song)管(guan)線(xian)(xian)進行計(ji)算/實驗,以(yi)(yi)(yi)確保氣(qi)(qi)(qi)(qi)力(li)輸(shu)(shu)送(song)(song)機(ji)通過管(guan)線(xian)(xian)的(de)總壓(ya)(ya)降(jiang)被正確估(gu)計(ji)。氣(qi)(qi)(qi)(qi)力(li)輸(shu)(shu)送(song)(song)機(ji)管(guan)線(xian)(xian)長(chang)度和彎曲度:許多(duo)流(liu)程都(dou)經過了修改,可能(neng)需要擴展以(yi)(yi)(yi)支(zhi)持容量的(de)增(zeng)加(jia)。通常(chang)現有(you)的(de)氣(qi)(qi)(qi)(qi)動(dong)管(guan)線(xian)(xian)會(hui)被修改以(yi)(yi)(yi)適應(ying)新設備的(de)運輸(shu)(shu)。這經常(chang)導致產能(neng)下降(jiang)。氣(qi)(qi)(qi)(qi)力(li)輸(shu)(shu)送(song)(song)機(ji)管(guan)道長(chang)度和彎曲的(de)增(zeng)加(jia)會(hui)增(zeng)加(jia)系統(tong)的(de)總壓(ya)(ya)降(jiang),同時降(jiang)低輸(shu)(shu)送(song)(song)固(gu)體的(de)可用壓(ya)(ya)力(li)。
氣力輸送線可能只是問題的一部分,然而,通常料斗和給料機在實現可靠的氣力輸送方面起著同樣重要的作用。向正壓氣力輸送機中(zhong)(zhong)輸送(song)(song)固體需要(yao)一種密封(feng)的(de)方法來對抗管道(dao)中(zhong)(zhong)的(de)壓(ya)(ya)(ya)力(li)。對于低壓(ya)(ya)(ya)氣(qi)力(li)輸送(song)(song)機(ji),旋轉閥,固體泵(beng)和噴射器(qi)是(shi)(shi)常見的(de)選擇。對于高壓(ya)(ya)(ya)氣(qi)力(li)輸送(song)(song)機(ji),可以(yi)使(shi)用發送(song)(song)罐,以(yi)及高壓(ya)(ya)(ya)密封(feng)旋轉閥。其中(zhong)(zhong)一些(xie)(xie)設(she)備控制固體排放(fang)到(dao)管道(dao)的(de)速率(lv),因(yin)此(ci)是(shi)(shi)真正(zheng)的(de)供(gong)料(liao)裝(zhuang)置,而(er)另(ling)一些(xie)(xie)設(she)備只(zhi)提(ti)供(gong)壓(ya)(ya)(ya)力(li)密封(feng)。旋轉閥作為給料(liao)機(ji)可以(yi)用來提(ti)供(gong)密封(feng),這一特性使(shi)它(ta)們非常有用,當(dang)給料(liao)進入高壓(ya)(ya)(ya)環境(jing)時。排氣(qi)是(shi)(shi)關鍵的(de),然而(er),特別是(shi)(shi)當(dang)處理精細材料(liao)。如果不(bu)排氣(qi),氣(qi)體會泄(xie)漏到(dao)進料(liao)料(liao)斗中(zhong)(zhong),從(cong)而(er)引起(qi)料(liao)斗出口的(de)橋接(jie)問題。