煤粉石灰粉氣力輸送料封泵-粉料輸送系統
新型低壓粉體氣力輸送機具(ju)有結構(gou)簡單、體積小(xiao)、重量(liang)輕、高效低耗、*封閉、無(wu)污染、免(mian)維護等特點。適用于輸(shu)(shu)送(song)各(ge)種粉狀(zhuang)物料。許多火(huo)電(dian)廠采用循環流化床(chuang)鍋(guo)爐輸(shu)(shu)灰(hui)技術。改造中(zhong)使(shi)用了該(gai)設(she)備。經過調試和運行(xing)，低壓氣力輸(shu)(shu)送(song)機在鍋(guo)爐灰(hui)渣(zha)的長(chang)距離、大批量(liang)輸(shu)(shu)送(song)中(zhong)取得(de)了令人滿意的效果，使(shi)電(dian)廠的輸(shu)(shu)灰(hui)系統更(geng)加安*、可靠(kao)、經濟。
工(gong)藝(yi)選(xuan)擇
使用低壓氣力輸送機進行物料氣(qi)力輸(shu)送(song)(song)的(de)(de)原則：1、料倉出料口到氣(qi)力輸(shu)送(song)(song)機(ji)的(de)(de)高度大(da)于(yu)6m，以(yi)保(bao)證(zheng)氣(qi)力輸(shu)送(song)(song)機(ji)內腔有一定(ding)的(de)(de)壓(ya)力。物料等級越高，運輸(shu)量(liang)越大(da)。2、輸(shu)送(song)(song)管(guan)(guan)道在輸(shu)送(song)(song)過程中需要改變(bian)方向時，轉彎半(ban)徑(jing)必須大(da)于(yu)管(guan)(guan)徑(jing)的(de)(de)8倍，以(yi)保(bao)證(zheng)物料輸(shu)送(song)(song)順暢。3、鋪設輸(shu)送(song)(song)管(guan)(guan)道時，盡量(liang)避免向下輸(shu)送(song)(song)，防止(zhi)管(guan)(guan)道堵塞。
經濟分析
粉(fen)末(mo)氣(qi)(qi)力輸(shu)(shu)(shu)送(song)(song)(song)(song)機輸(shu)(shu)(shu)送(song)(song)(song)(song)粉(fen)煤(mei)灰。工藝簡單、性能可靠(kao)、投(tou)資小、運行成本低(di)。設備(bei)(bei)電(dian)耗(hao)3.8kWh/噸(dun)(dun)。電(dian)費按(an)每千瓦時(shi)0.3元計(ji)算。總運行成本（不含(han)折舊）為1.14元/噸(dun)(dun)。因(yin)此，循環流(liu)化(hua)床(chuang)鍋爐采用料封泵輸(shu)(shu)(shu)送(song)(song)(song)(song)粉(fen)煤(mei)灰的(de)過(guo)程(cheng)無(wu)疑是一個安(an)*、可靠(kao)、經濟的(de)過(guo)程(cheng)。氣(qi)(qi)力輸(shu)(shu)(shu)送(song)(song)(song)(song)機是我*近年(nian)來(lai)發展(zhan)起來(lai)的(de)新型(xing)低(di)壓(ya)氣(qi)(qi)力輸(shu)(shu)(shu)送(song)(song)(song)(song)設備(bei)(bei)。采用氣(qi)(qi)力輸(shu)(shu)(shu)送(song)(song)(song)(song)機輸(shu)(shu)(shu)送(song)(song)(song)(song)物料，設備(bei)(bei)和土建投(tou)資成本低(di)。輸(shu)(shu)(shu)送(song)(song)(song)(song)管道布置簡單，安(an)裝方便。輸(shu)(shu)(shu)送(song)(song)(song)(song)氣(qi)(qi)源的(de)選擇范圍很廣，包括(kuo)羅(luo)茨鼓風(feng)機、壓(ya)縮(suo)空氣(qi)(qi)、風(feng)機等。但由(you)于(yu)輸(shu)(shu)(shu)送(song)(song)(song)(song)氣(qi)(qi)壓(ya)較低(di)，通常為0.2-1個大氣(qi)(qi)壓(ya)，只需一臺羅(luo)茨鼓風(feng)機或(huo)鼓風(feng)機就足夠了。
