粉體氣力輸送系統的(de)輸送(song)量與輸送(song)管(guan)道有很大關系,廣泛應用(yong)(yong)的(de)輸送(song)管(guan)道種(zhong)類較多。輸送(song)量越大,管(guan)道應用(yong)(yong)直徑(jing)也越大,但管(guan)道連(lian)接*為(wei)重要,那么氣(qi)動輸送(song)系統管(guan)道如何布(bu)置。
粉體氣力輸送系統的管(guan)道如(ru)何(he)布置:
輸送(song)管安(an)裝時應(ying)(ying)有一定的要求(qiu)。例如,無法在強制(zhi)劃分(fen)時建立與設備的連接。水(shui)平管道小間距應(ying)(ying)符合標(biao)準。管道連接是否(fou)緊固,接頭是否(fou)移位,水(shui)管滾(gun)輪是否(fou)對齊。氣(qi)力(li)輸送(song)系統水(shui)平輸送(song)管道平面誤(wu)差不(bu)得(de)超過千(qian)分(fen)之(zhi)三,總長度(du)不(bu)得(de)超過30%mm。垂直輸送(song)管道平面誤(wu)差不(bu)得(de)超過千(qian)分(fen)之(zhi)二,總長度(du)不(bu)得(de)超過230mm。若(ruo)輸送(song)管道采用無縫(feng)管或水(shui)、氣(qi)罐,可用法蘭連接。這種連接方(fang)法稱為并集法。使用連接加料(liao)管時,各接頭應(ying)(ying)盡量在同一條船(chuan)上,避免邊(bian)緣誤(wu)差,否(fou)則壓(ya)力(li)會(hui)增大,嚴重時會(hui)導致(zhi)物料(liao)沉(chen)積和堵塞。
對于較(jiao)小直徑(jing)的(de)給水管(guan)(guan)(guan),連(lian)接套(tao)(tao)(tao)管(guan)(guan)(guan)可由整塊冷軋(ya)鋼(gang)板擠壓而成。對于直徑(jing)過大的(de)輸(shu)(shu)送管(guan)(guan)(guan),套(tao)(tao)(tao)管(guan)(guan)(guan)可由兩半組成。套(tao)(tao)(tao)管(guan)(guan)(guan)周長應(ying)比喂料(liao)(liao)管(guan)(guan)(guan)周長大50~100mm,有利于添(tian)加墊料(liao)(liao)。沿套(tao)(tao)(tao)管(guan)(guan)(guan)長度方向焊接角鋼(gang)與(yu)錨定螺釘孔,以(yi)鎖定輸(shu)(shu)送管(guan)(guan)(guan)。為避免管(guan)(guan)(guan)道移位,外殼和管(guan)(guan)(guan)道應(ying)采用法蘭(lan)連(lian)接。套(tao)(tao)(tao)管(guan)(guan)(guan)上的(de)凸起(qi)邊(bian)(bian)緣應(ying)與(yu)輸(shu)(shu)送管(guan)(guan)(guan)的(de)凸起(qi)邊(bian)(bian)緣相匹(pi)配。套(tao)(tao)(tao)管(guan)(guan)(guan)和輸(shu)(shu)送管(guan)(guan)(guan)之間應(ying)填充(chong)塑料(liao)(liao)或織物,以(yi)確保密封嚴密。
為了改善氣力(li)輸(shu)送系統(tong)(tong)的(de)管道連接,本施工(gong)可對易堵塞(sai)的(de)管道、彎頭合(he)(he)理加裝增(zeng)(zeng)壓器,以增(zeng)(zeng)加驅動力(li);粉體氣力(li)輸(shu)送系統(tong)(tong)設備(bei)的(de)潛力(li)超(chao)出了原(yuan)設計指標,大大減少了管道混凝土離析,只有增(zeng)(zeng)加管道數量(liang),才能合(he)(he)理提高管道及(ji)管件的(de)使用壽命,減少維(wei)護工(gong)作量(liang)。