合肥電廠除灰氣力輸送設備-石粉粉體LFB-300粉煤灰輸送泵
稀相粉體氣力輸送是利用(yong)大(da)量空氣(qi)(qi)在低(di)壓(ya)(ya)下輸(shu)(shu)(shu)送物料(liao)。在大(da)多數情況下，風(feng)機用(yong)于產(chan)生足夠(gou)的(de)壓(ya)(ya)力(li)，以在材(cai)料(liao)和(he)空氣(qi)(qi)之(zhi)間實現一(yi)定(ding)的(de)固氣(qi)(qi)比。密相氣(qi)(qi)力(li)輸(shu)(shu)(shu)送使(shi)用(yong)較高(gao)的(de)空氣(qi)(qi)速(su)度(du)。這種高(gao)速(su)/低(di)壓(ya)(ya)組合使(shi)空氣(qi)(qi)能(neng)夠(gou)做其他事情，而不僅(jin)(jin)僅(jin)(jin)是運輸(shu)(shu)(shu)材(cai)料(liao)。空氣(qi)(qi)可以控制(zhi)被(bei)(bei)輸(shu)(shu)(shu)送物料(liao)的(de)溫度(du)，使(shi)物料(liao)易于冷卻，并精細控制(zhi)一(yi)級到一(yi)級的(de)溫度(du)。當氣(qi)(qi)流速(su)度(du)較高(gao)時，輸(shu)(shu)(shu)送的(de)物料(liao)保(bao)持在管(guan)道(dao)中(zhong)心(xin)，氣(qi)(qi)流懸浮。在密相氣(qi)(qi)力(li)輸(shu)(shu)(shu)送系統中(zhong)，如果管(guan)道(dao)任何區域(yu)的(de)壓(ya)(ya)力(li)降低(di)，較低(di)的(de)壓(ya)(ya)力(li)對被(bei)(bei)輸(shu)(shu)(shu)送物料(liao)的(de)影響就會小得多。
稀相粉體氣力輸送通(tong)常(chang)使用(yong)鼓風機輸(shu)(shu)(shu)(shu)送較(jiao)(jiao)(jiao)少的(de)(de)空(kong)氣(qi)(qi)，但壓(ya)力(li)比稀(xi)相(xiang)氣(qi)(qi)力(li)輸(shu)(shu)(shu)(shu)送更高(gao)。這種較(jiao)(jiao)(jiao)高(gao)的(de)(de)壓(ya)力(li)允許稀(xi)相(xiang)輸(shu)(shu)(shu)(shu)送以(yi)高(gao)達7:1的(de)(de)材料(liao)(liao)(liao)與(yu)空(kong)氣(qi)(qi)比率移(yi)動某些(xie)材料(liao)(liao)(liao)。當(dang)壓(ya)力(li)保持(chi)(chi)較(jiao)(jiao)(jiao)低(di)時(shi)，可以(yi)實現更高(gao)的(de)(de)速度。稀(xi)相(xiang)也采用(yong)與(yu)稀(xi)相(xiang)類(lei)似的(de)(de)懸浮(fu)流(liu)。密(mi)(mi)相(xiang)氣(qi)(qi)力(li)輸(shu)(shu)(shu)(shu)送常(chang)采用(yong)壓(ya)縮空(kong)氣(qi)(qi)來推動物(wu)(wu)料(liao)(liao)(liao)。它通(tong)常(chang)使用(yong)較(jiao)(jiao)(jiao)小(xiao)的(de)(de)壓(ya)力(li)。由于壓(ya)縮空(kong)氣(qi)(qi)推動物(wu)(wu)料(liao)(liao)(liao)而(er)不(bu)是將(jiang)其懸浮(fu)在管(guan)道中(zhong)，因(yin)此(ci)空(kong)氣(qi)(qi)流(liu)速通(tong)常(chang)較(jiao)(jiao)(jiao)小(xiao)。由于空(kong)氣(qi)(qi)將(jiang)物(wu)(wu)料(liao)(liao)(liao)推入(ru)(ru)段塞中(zhong)，因(yin)此(ci)物(wu)(wu)料(liao)(liao)(liao)不(bu)會撞擊管(guan)道內部，因(yin)此(ci)密(mi)(mi)相(xiang)輸(shu)(shu)(shu)(shu)送可以(yi)在長時(shi)間運行中(zhong)保持(chi)(chi)物(wu)(wu)料(liao)(liao)(liao)完*無(wu)損。采用(yong)密(mi)(mi)相(xiang)氣(qi)(qi)力(li)輸(shu)(shu)(shu)(shu)送系統，物(wu)(wu)料(liao)(liao)(liao)與(yu)空(kong)氣(qi)(qi)的(de)(de)比例非常(chang)高(gao)。為了保持(chi)(chi)密(mi)(mi)相(xiang)輸(shu)(shu)(shu)(shu)送，料(liao)(liao)(liao)氣(qi)(qi)比必須保持(chi)(chi)在20:1以(yi)上(shang)，根(gen)據所(suo)輸(shu)(shu)(shu)(shu)送物(wu)(wu)料(liao)(liao)(liao)的(de)(de)類(lei)型，該(gai)比例可以(yi)高(gao)達100:1。如果該(gai)比例低(di)于20:1，材料(liao)(liao)(liao)很可能進入(ru)(ru)稀(xi)相(xiang)運輸(shu)(shu)(shu)(shu)并與(yu)整齊的(de)(de)段塞分離。
密相(xiang)(xiang)氣(qi)力(li)(li)輸送(song)(song)(song)(song)系統(tong)(tong)能夠(gou)輸送(song)(song)(song)(song)的(de)物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)是(shi)有(you)限的(de)。顆粒直徑大(da)于半英寸的(de)材料(liao)(liao)(liao)(liao)在密相(xiang)(xiang)氣(qi)力(li)(li)輸送(song)(song)(song)(song)系統(tong)(tong)中不(bu)能很*地工(gong)作(zuo)，因為空(kong)氣(qi)傾向于在顆粒周圍移動而不(bu)是(shi)推動它們(men)。然而，即使某些(xie)顆粒大(da)于半英寸，具有(you)不(bu)同(tong)顆粒尺寸的(de)材料(liao)(liao)(liao)(liao)也(ye)可以(yi)工(gong)作(zuo)。密相(xiang)(xiang)氣(qi)力(li)(li)輸送(song)(song)(song)(song)系統(tong)(tong)可以(yi)利用非常高(gao)的(de)材料(liao)(liao)(liao)(liao)與氣(qi)體的(de)比率來防止系統(tong)(tong)進入稀(xi)相(xiang)(xiang)速度。雖(sui)然密相(xiang)(xiang)氣(qi)力(li)(li)輸送(song)(song)(song)(song)系統(tong)(tong)無法處理(li)許多具有(you)較大(da)顆粒的(de)物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)混合物(wu)(wu)(wu)，但稀(xi)相(xiang)(xiang)氣(qi)力(li)(li)輸送(song)(song)(song)(song)系統(tong)(tong)可以(yi)處理(li)幾乎任何顆粒尺寸和(he)形狀(zhuang)的(de)物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)。另外，由于密相(xiang)(xiang)氣(qi)力(li)(li)輸送(song)(song)(song)(song)系統(tong)(tong)的(de)壓(ya)力(li)(li)較高(gao)，如果zui終輸送(song)(song)(song)(song)的(de)壓(ya)力(li)(li)控制不(bu)*，*后一段(duan)通過管(guan)道的(de)物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)可能會在卸(xie)料(liao)(liao)(liao)(liao)點爆裂。氣(qi)力(li)(li)輸送(song)(song)(song)(song)系統(tong)(tong)中輸送(song)(song)(song)(song)物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)的(de)方式有(you)很多種(zhong)。了解每個氣(qi)力(li)(li)輸送(song)(song)(song)(song)系統(tong)(tong)的(de)工(gong)作(zuo)原理(li)及其功能和(he)要求(qiu)可以(yi)幫助您選擇(ze)合適的(de)氣(qi)力(li)(li)輸送(song)(song)(song)(song)系統(tong)(tong)，以(yi)更(geng)快(kuai)、更(geng)高(gao)效地運(yun)輸物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)。
