粉體氣力輸送機采用(yong)*封閉輸(shu)送(song)(song)設(she)備(bei),完成(cheng)(cheng)散裝(zhuang)(zhuang)粉狀或顆粒狀物(wu)料(liao)的輸(shu)送(song)(song),消除了輸(shu)送(song)(song)過程中物(wu)料(liao)泄漏對人體造(zao)成(cheng)(cheng)的污染(ran)和傷害。微正壓(ya)氣力輸(shu)送(song)(song)是近年來粉體氣力輸(shu)送(song)(song)系(xi)統(tong)的發展方向。與(yu)傳統(tong)輸(shu)送(song)(song)設(she)備(bei)相比(bi),體積小,安裝(zhuang)(zhuang)方便。由于采用(yong)低(di)壓(ya)輸(shu)送(song)(song),輸(shu)送(song)(song)介質壓(ya)力低(di),對設(she)備(bei)磨損小,能耗(hao)低(di)。該系(xi)統(tong)廣(guang)泛應用(yong)于電廠除灰(hui)系(xi)統(tong)、水泥生(sheng)產及制藥(yao)、化工、冶金等行業。
氣力輸送機的優點(dian)是基本可(ke)(ke)以(yi)輸(shu)(shu)送(song)(song)粉狀(zhuang)、顆(ke)粒狀(zhuang)物(wu)(wu)料,而且不占用太多空間,可(ke)(ke)以(yi)與各條生產線形成很(hen)*的契合。但值得注意的是,氣力(li)輸(shu)(shu)送(song)(song)不宜輸(shu)(shu)送(song)(song)容易破碎或(huo)損壞的物(wu)(wu)料。為(wei)了達到氣力(li)輸(shu)(shu)送(song)(song)系(xi)統(tong)的額(e)定輸(shu)(shu)送(song)(song)能力(li),除(chu)了風量和(he)壓力(li)外,另一個重(zhong)要條件(jian)是物(wu)(wu)料必須充分、連續地(di)流(liu)入(ru)輸(shu)(shu)送(song)(song)管道。通過管道內的氣流(liu)吹(chui)走(zou),為(wei)滿足物(wu)(wu)料連續自動流(liu)入(ru)管道,需滿足兩個條件(jian):
1、物料流化時,流化區必(bi)須有一定的正壓。
2、主管(guan)路吸入(ru)區(qu)有一定(ding)的(de)(de)間(jian)隙和負壓。間(jian)隙越(yue)(yue)大(da),流(liu)(liu)(liu)化程度越(yue)(yue)高(gao),進(jin)入(ru)管(guan)道的(de)(de)物(wu)料(liao)(liao)量(liang)(liang)也越(yue)(yue)大(da)。系統傳(chuan)輸的(de)(de)數(shu)據越(yue)(yue)大(da),調節不(bu)(bu)及時,流(liu)(liu)(liu)化氣(qi)體(ti)量(liang)(liang)小,物(wu)料(liao)(liao)不(bu)(bu)能流(liu)(liu)(liu)化。進(jin)入(ru)管(guan)道的(de)(de)材料(liao)(liao)更少。另一個原因是(shi)主管(guan)間(jian)隙小,僅采用氣(qi)力輸送(song)系統,因操作不(bu)(bu)當(dang)調節裝(zhuang)置開(kai)度過于(yu)保守,伸(shen)縮(suo)管(guan)回縮(suo)長度不(bu)(bu)夠,都會(hui)使(shi)(shi)間(jian)隙噴(pen)嘴(zui)與氣(qi)嘴(zui)之間(jian)的(de)(de)氣(qi)管(guan)太(tai)小。,使(shi)(shi)得進(jin)入(ru)管(guan)道的(de)(de)物(wu)料(liao)(liao)量(liang)(liang)少,輸送(song)量(liang)(liang)小。正確的(de)(de)方法(fa)是(shi)關閉出料(liao)(liao)開(kai)關,使(shi)(shi)氣(qi)體(ti)通過內部風道,打開(kai)閘門氣(qi)流(liu)(liu)(liu),使(shi)(shi)物(wu)料(liao)(liao)完*均(jun)化。然后順時針逐(zhu)(zhu)漸搖動(dong)(dong)調節裝(zhuang)置手(shou)柄,使(shi)(shi)伸(shen)縮(suo)管(guan)向后移動(dong)(dong),風嘴(zui)與噴(pen)嘴(zui)之間(jian)的(de)(de)距離即可(ke)拉開(kai),物(wu)料(liao)(liao)即可(ke)自動(dong)(dong)流(liu)(liu)(liu)入(ru)出料(liao)(liao)管(guan),從而(er)實現氣(qi)體(ti)輸送(song)到物(wu)料(liao)(liao)中(zhong),放(fang)電開(kai)關可(ke)逐(zhu)(zhu)漸打開(kai)。
物(wu)料(liao)(liao)的(de)(de)潮濕和結(jie)(jie)塊(kuai)會(hui)(hui)影響氣力輸送系統的(de)(de)輸送。如果雨季雨水(shui)(shui)進(jin)入料(liao)(liao)倉,物(wu)料(liao)(liao)很容易結(jie)(jie)塊(kuai)。進(jin)入均化(hua)區后,它(ta)們不會(hui)(hui)被吹走并積聚在(zai)泵中。隨著體積的(de)(de)增大(da),其他材料(liao)(liao)的(de)(de)均質化(hua)也會(hui)(hui)受(shou)到影響。物(wu)料(liao)(liao)的(de)(de)流化(hua)程(cheng)度(du)大(da)大(da)降(jiang)低(di)。因此,防(fang)潮,冬(dong)季必須防(fang)止水(shui)(shui)分進(jin)入管(guan)(guan)道。如果不保溫,很容易發生(sheng)凝(ning)露,水(shui)(shui)會(hui)(hui)在(zai)管(guan)(guan)道內結(jie)(jie)塊(kuai),影響物(wu)料(liao)(liao)的(de)(de)流化(hua)。