礦山石粉氣力輸送-粉煤灰氣力輸送裝置
粉體氣力輸送機料封(feng)泵(beng)與其他倉泵(beng)相比的(de)主要優點(dian)如下：
1、從工作壓力來看：倉泵的工作壓力一般在0.2Mpa以上，必須使用空壓機供氣.處理壓縮空氣。氣力輸送機料封泵的工作壓力一般在(zai)0.1Mpa以下，通(tong)常(chang)采(cai)用(yong)羅茨鼓風機供氣。
2、從工(gong)(gong)(gong)(gong)作方式(shi)來看：倉泵(beng)一般(ban)采用(yong)間(jian)歇(xie)式(shi)工(gong)(gong)(gong)(gong)作，其工(gong)(gong)(gong)(gong)作過程至少(shao)應有進料和(he)輸送兩個(ge)過程。料封泵(beng)的(de)工(gong)(gong)(gong)(gong)作采用(yong)連續運(yun)轉(zhuan)，工(gong)(gong)(gong)(gong)作過程中進料和(he)輸送同時進行。
3、從輸(shu)(shu)(shu)送(song)(song)(song)濃(nong)度(du)(du)來看：倉泵(beng)由于輸(shu)(shu)(shu)送(song)(song)(song)時工作壓力高，能(neng)有效(xiao)克服因輸(shu)(shu)(shu)送(song)(song)(song)料(liao)氣比高而(er)(er)增(zeng)加的阻力，故可進(jin)行高濃(nong)度(du)(du)輸(shu)(shu)(shu)送(song)(song)(song)和長距離輸(shu)(shu)(shu)送(song)(song)(song)。輸(shu)(shu)(shu)送(song)(song)(song)。而(er)(er)且出貨過程穩定。料(liao)封泵(beng)由于運行時壓力較低(di)，只能(neng)進(jin)行低(di)濃(nong)度(du)(du)輸(shu)(shu)(shu)送(song)(song)(song)。在運輸(shu)(shu)(shu)過程中，要防止因濃(nong)度(du)(du)升高而(er)(er)堵塞管道或吹(chui)穿物料(liao)密(mi)封層(ceng)。
4、從輸送(song)速度來(lai)看：料(liao)封泵輸送(song)速度較低，物料(liao)在輸送(song)初期甚至(zhi)可以(yi)在靜(jing)壓(ya)下滑動。對(dui)(dui)管道(dao)磨(mo)損(sun)小(xiao)，對(dui)(dui)直管基本無(wu)磨(mo)損(sun)。燃油泵只(zhi)能高速輸送(song)，所以(yi)對(dui)(dui)管道(dao)的磨(mo)損(sun)很(hen)大(da)。
5、從輸(shu)(shu)送管(guan)(guan)(guan)路來看(kan)：料封泵由于(yu)(yu)輸(shu)(shu)送濃度高，在(zai)相(xiang)同輸(shu)(shu)送量(liang)(liang)的情況下，管(guan)(guan)(guan)道(dao)截面積大(da)大(da)減小(xiao)，同時由于(yu)(yu)低(di)輸(shu)(shu)送速度快，直(zhi)管(guan)(guan)(guan)不需要特(te)殊材(cai)料。由于(yu)(yu)倉(cang)泵輸(shu)(shu)送濃度低(di)，在(zai)輸(shu)(shu)送量(liang)(liang)相(xiang)同的情況下，管(guan)(guan)(guan)道(dao)截面積較大(da)，因此整條輸(shu)(shu)送管(guan)(guan)(guan)道(dao)及支架的投資較高。
6、從收貨(huo)倉(cang)(cang)氣體過(guo)(guo)(guo)濾要(yao)求來看(kan)：由(you)(you)于(yu)同樣的輸(shu)送量(liang)(liang)，物(wu)料密封泵(beng)在(zai)輸(shu)送過(guo)(guo)(guo)程中耗氣量(liang)(liang)少，過(guo)(guo)(guo)濾收貨(huo)倉(cang)(cang)廢(fei)氣的工作量(liang)(liang)小(xiao)，且(qie)相應的除(chu)塵(chen)過(guo)(guo)(guo)濾設備(bei)較小(xiao)。但由(you)(you)于(yu)倉(cang)(cang)泵(beng)耗氣量(liang)(liang)大，相應的除(chu)塵(chen)過(guo)(guo)(guo)濾設備(bei)也(ye)較大。
