適合粉體輸送線的粉體氣力輸送機系統有哪些類型？
適合粉體輸(shu)(shu)(shu)送(song)(song)(song)線的(de)氣力輸(shu)(shu)(shu)送(song)(song)(song)系(xi)統有(you)(you)哪(na)些(xie)類型？在生(sheng)產(chan)過(guo)程中，需(xu)要(yao)運輸(shu)(shu)(shu)粉末。與其他機械輸(shu)(shu)(shu)送(song)(song)(song)方(fang)(fang)式(shi)相比，氣力輸(shu)(shu)(shu)送(song)(song)(song)系(xi)統通常(chang)是一(yi)種高效(xiao)的(de)粉體輸(shu)(shu)(shu)送(song)(song)(song)方(fang)(fang)式(shi)。氣動輸(shu)(shu)(shu)送(song)(song)(song)系(xi)統有(you)(you)不同的(de)方(fang)(fang)法(fa)(fa)來執行氣動輸(shu)(shu)(shu)送(song)(song)(song)，如壓縮空氣輸(shu)(shu)(shu)送(song)(song)(song)或真空輸(shu)(shu)(shu)送(song)(song)(song)系(xi)統。每種方(fang)(fang)法(fa)(fa)都(dou)有(you)(you)自己的(de)優(you)缺(que)點。因此，工(gong)藝的(de)選擇不僅要(yao)考(kao)慮工(gong)藝需(xu)要(yao)，還要(yao)考(kao)慮氣力輸(shu)(shu)(shu)送(song)(song)(song)對產(chan)品的(de)影(ying)響。
在每種情況下，氣力輸送將涉及氣體作為粉體氣力輸送機。這種氣(qi)體(ti)被(bei)吹(chui)到工藝的一邊，混合(he)氣(qi)體(ti)+粉末(mo)在輸送(song)(song)管道中(zhong)流動，直到它的*終(zhong)目(mu)的地(di)。在大多數情況下，使用的氣(qi)體(ti)是(shi)空(kong)氣(qi)。但是(shi)，有不同的方式(shi)吹(chui)空(kong)氣(qi)和引(yin)入粉末(mo)進入輸送(song)(song)管道。因此，隨著時(shi)間的推移，開發出了不同的輸送(song)(song)技術。
通常(chang)使(shi)用什么類(lei)型的氣力輸送系統？
在稀(xi)相(xiang)中(zhong)輸(shu)(shu)送(song)(song)粉(fen)末的(de)一種(zhong)非(fei)常(chang)常(chang)見的(de)方(fang)法是在稀(xi)相(xiang)中(zhong)輸(shu)(shu)送(song)(song)粉(fen)末。粉(fen)末被空(kong)(kong)氣(qi)(qi)稀(xi)釋，這意味著物質與(yu)氣(qi)(qi)體的(de)比例(li)非(fei)常(chang)低。產(chan)品在管(guan)(guan)道中(zhong)以稀(xi)相(xiang)的(de)形式輸(shu)(shu)送(song)(song)。真空(kong)(kong)輸(shu)(shu)送(song)(song)， 鼓風機可以放置在輸(shu)(shu)送(song)(song)管(guan)(guan)道的(de)末端，而(er)不是在輸(shu)(shu)送(song)(song)管(guan)(guan)道的(de)起始處(chu)。在這種(zhong)情況下，鼓風機產(chan)生真空(kong)(kong)，將空(kong)(kong)氣(qi)(qi)吸入輸(shu)(shu)送(song)(song)管(guan)(guan)道。空(kong)(kong)氣(qi)(qi)會把粉(fen)末拖(tuo)到*終的(de)接收地(di)點。
密相輸送的另一種選擇，輸送管中的空氣是由鼓風機引入的，在輸送管的始端有超壓。氣力輸送機是輸(shu)送(song)濃(nong)度高(gao)(gao)很多的(de)產品。當原料氣比例較高(gao)(gao)時(shi)，輸(shu)送(song)稱為密相(xiang)。同樣，這(zhe)種輸(shu)送(song)可以在壓力或(huo)(huo)真空(kong)下進(jin)行(xing)。在濃(nong)相(xiang)中(zhong)，空(kong)氣的(de)壓縮壓力必須高(gao)(gao)于稀相(xiang)。這(zhe)可以通過安裝特定的(de)壓縮機或(huo)(huo)簡單地(di)使用(yong)來自工廠壓縮空(kong)氣網絡的(de)空(kong)氣來實現。達到(dao)的(de)壓力范(fan)圍從1巴克(ke)到(dao)幾(ji)袋克(ke)。為了將粉末引入輸(shu)送(song)管道，通常使用(yong)一些設計成耐壓的(de)儲罐(guan)。它們被稱為壓力罐(guan)或(huo)(huo)壓力輸(shu)送(song)料斗。
真空(kong)(kong)(kong)中的(de)(de)密相(xiang)將顯示出(chu)與稀相(xiang)相(xiang)似的(de)(de)排列。但是(shi)(shi)，為了(le)適應更(geng)高(gao)的(de)(de)固(gu)體負(fu)荷(he)，導(dao)致更(geng)高(gao)的(de)(de)壓(ya)降(jiang)，將使(shi)用(yong)真空(kong)(kong)(kong)泵代替簡單(dan)的(de)(de)羅茨鼓風機。此時(shi)會(hui)(hui)產生高(gao)真空(kong)(kong)(kong)。在(zai)密相(xiang)輸(shu)送(song)時(shi)，供(gong)應商可(ke)以采用(yong)不(bu)(bu)同(tong)的(de)(de)技術，使(shi)粉體在(zai)輸(shu)送(song)管道中處(chu)于(yu)不(bu)(bu)同(tong)的(de)(de)輸(shu)送(song)狀(zhuang)態。在(zai)簡單(dan)的(de)(de)配置中，自然會(hui)(hui)出(chu)現(xian)不(bu)(bu)同(tong)長(chang)度的(de)(de)材料流(liu)。這(zhe)可(ke)能會(hui)(hui)引起(qi)一(yi)些關于(yu)壓(ya)降(jiang)的(de)(de)問題，因為可(ke)能只有一(yi)個長(chang)塞。為了(le)減少這(zhe)種(zhong)現(xian)象，可(ke)以強(qiang)制創(chuang)建更(geng)短的(de)(de)材料流(liu)。這(zhe)是(shi)(shi)通過脈動一(yi)個閥門來實現(xian)的(de)(de)，該閥門允(yun)許空(kong)(kong)(kong)氣進(jin)入輸(shu)送(song)管的(de)(de)開(kai)始(shi)或中間(jian)部分。缺點是(shi)(shi)輸(shu)送(song)管道中引入的(de)(de)空(kong)(kong)(kong)氣會(hui)(hui)加(jia)速產品輸(shu)送(song)到終(zhong)點，可(ke)能對產品質量(liang)不(bu)(bu)利。
