粉體氣力輸送機設備防塵效果*;易于實現機械(xie)化、自動化,可減(jian)輕勞動強(qiang)度,節省人力;在輸送過程中,可同時進行混(hun)合(he)、破碎(sui)、分(fen)選(xuan)、干燥、冷卻等多種(zhong)工藝操作。
具有防止物(wu)料受潮(chao)、污染或(huo)混入雜物(wu)的優點(dian),因此(ci)應用(yong)于鑄造(zao)(zao)、冶金、化工、建材、食品加工等部門。其主要缺(que)點(dian)是功耗大;設(she)備(bei)(主要是分離器端口)和管(guan)道(主要是彎頭(tou))磨損(sun)很(hen)快。如果設(she)計、施工或(huo)操作不當,很(hen)容易造(zao)(zao)成物(wu)料沉(chen)積,造(zao)(zao)成堵(du)塞、運(yun)輸中斷。;不宜輸送濕(shi)度大、粘度大或(huo)易破碎的物(wu)料。
氣(qi)(qi)力輸(shu)送(song)(song)設備一般由物(wu)料(liao)(liao)(liao)接收(shou)器(qi)(如喉管、吸(xi)嘴、發射器(qi)等)、輸(shu)送(song)(song)管、風(feng)道、分(fen)離(li)(li)(li)器(qi)(常用(yong)的有容積式(shi)和旋風(feng)分(fen)離(li)(li)(li)器(qi))、空(kong)(kong)(kong)氣(qi)(qi)分(fen)離(li)(li)(li)器(qi)等組(zu)(zu)成。鎖(常用(yong)的有轉(zhuan)盤式(shi)和旋轉(zhuan)式(shi)兩種,可用(yong)作(zuo)(zuo)給料(liao)(liao)(liao)機和卸料(liao)(liao)(liao)機)、除塵器(qi)和風(feng)機(如離(li)(li)(li)心風(feng)機、羅茨(ci)鼓(gu)風(feng)機、水(shui)環真空(kong)(kong)(kong)泵、空(kong)(kong)(kong)氣(qi)(qi)壓(ya)縮機、等)以及(ji)其他設備和組(zu)(zu)件。物(wu)料(liao)(liao)(liao)接收(shou)器(qi)的作(zuo)(zuo)用(yong)是(shi)(shi)供給物(wu)料(liao)(liao)(liao),創造合(he)適的料(liao)(liao)(liao)氣(qi)(qi)比,并(bing)使物(wu)料(liao)(liao)(liao)啟動和加速。分(fen)離(li)(li)(li)機的作(zuo)(zuo)用(yong)是(shi)(shi)將物(wu)料(liao)(liao)(liao)與空(kong)(kong)(kong)氣(qi)(qi)分(fen)離(li)(li)(li),并(bing)對物(wu)料(liao)(liao)(liao)進行(xing)分(fen)選。鎖風(feng)器(qi)的作(zuo)(zuo)用(yong)是(shi)(shi)均勻地供給或排出物(wu)料(liao)(liao)(liao),同時防(fang)止空(kong)(kong)(kong)氣(qi)(qi)泄漏(lou)。風(feng)扇(shan)的作(zuo)(zuo)用(yong)是(shi)(shi)為系統(tong)提供電源(yuan)。真空(kong)(kong)(kong)抽吸(xi)系統(tong)一般采用(yong)高壓(ya)離(li)(li)(li)心風(feng)機或水(shui)環真空(kong)(kong)(kong)泵;壓(ya)力輸(shu)送(song)(song)系統(tong)需要羅茨(ci)鼓(gu)風(feng)機或空(kong)(kong)(kong)氣(qi)(qi)壓(ya)縮機。