粉體氣力輸送系統的給料(liao)方(fang)式是采(cai)用鎖風閥裝(zhuang)(zhuang)置。一根輸(shu)送(song)管(guan)(guan)道上(shang)可并聯8～10臺(tai)鎖氣閥裝(zhuang)(zhuang)置，也可將多臺(tai)裝(zhuang)(zhuang)置分組同時交替送(song)入輸(shu)送(song)管(guan)(guan)道。該(gai)系統輸(shu)送(song)距離一般為300-500m，輸(shu)送(song)濃(nong)度(du)為15-25公斤（灰）/公斤（氣體(ti)）。

      加(jia)壓(ya)系統(tong)使用的氣壓(ya)一般為300-700kPa，由空氣壓(ya)縮機(ji)供給，加(jia)料(liao)(liao)方式(shi)(shi)通常采(cai)用倉(cang)式(shi)(shi)輸(shu)(shu)送(song)泵(beng)(beng)或壓(ya)力輸(shu)(shu)送(song)棧。采(cai)用倉(cang)式(shi)(shi)輸(shu)(shu)送(song)泵(beng)(beng)喂(wei)料(liao)(liao)時，一般在一根(gen)輸(shu)(shu)送(song)管道上并聯兩臺倉(cang)式(shi)(shi)輸(shu)(shu)送(song)泵(beng)(beng)。通過泵(beng)(beng)上自動進料(liao)(liao)、出料(liao)(liao)閥的程(cheng)序動作，兩臺倉(cang)式(shi)(shi)輸(shu)(shu)送(song)泵(beng)(beng)交替將物(wu)料(liao)(liao)壓(ya)入(ru)漢輸(shu)(shu)送(song)管道。

       室(shi)泵缸的尺寸將根(gen)據系統(tong)的輸送(song)(song)(song)量、輸送(song)(song)(song)濃度等(deng)因(yin)素確定。當系統(tong)采(cai)用壓力精供料(liao)(liao)公(gong)頭供料(liao)(liao)時，一條輸送(song)(song)(song)管(guan)道(dao)上(shang)可并聯(lian)4個壓力輸送(song)(song)(song)公(gong)頭，多個壓力罐可依次(ci)或分(fen)組(zu)交(jiao)替向輸送(song)(song)(song)管(guan)道(dao)供料(liao)(liao)，減少氣力輸送(song)(song)(song)管(guan)道(dao)的數量。

       壓力(li)氣力(li)輸(shu)(shu)送(song)(song)系(xi)統(tong)可用(yong)于濃(nong)相氣力(li)輸(shu)(shu)送(song)(song)，輸(shu)(shu)送(song)(song)濃(nong)度可達30~50kg（灰(hui)）/kg（氣體）。密相氣力(li)輸(shu)(shu)送(song)(song)系(xi)統(tong)的輸(shu)(shu)送(song)(song)速度較(jiao)低(di)，一般為3～gm/s，可以(yi)大大減(jian)少輸(shu)(shu)送(song)(song)管(guan)道的磨損，降低(di)能(neng)耗，提高系(xi)統(tong)的輸(shu)(shu)送(song)(song)能(neng)力(li)。

       負(fu)壓正(zheng)壓聯(lian)合系統(tong)首先利(li)用負(fu)壓氣流將各灰斗(dou)內的(de)灰渣集中(zhong)至(zhi)中(zhong)間轉運斗(dou)，然后利(li)用正(zheng)壓氣流輸(shu)送(song)。該(gai)系統(tong)不僅可以(yi)克(ke)服(fu)負(fu)壓和正(zheng)壓系統(tong)的(de)缺(que)點，而且可以(yi)滿足長距離輸(shu)灰的(de)要求。但設備多、系統(tong)復雜、投資大。

TAGS：粉體氣力輸送機  氣力輸送機  料封泵  

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