按介(jie)(jie)質的粘(zhan)度(du)(du)選型(xing)：對(dui)于(yu)(yu)低粘(zhan)度(du)(du)介(jie)(jie)質，用小直徑(jing)高(gao)轉(zhuan)速的攪(jiao)(jiao)拌(ban)(ban)(ban)器(qi)(qi)就(jiu)能帶動周圍的流體(ti)(ti)循(xun)環(huan)，并至遠處；而(er)(er)高(gao)粘(zhan)度(du)(du)介(jie)(jie)質的流體(ti)(ti)則(ze)不然(ran)，需直接用攪(jiao)(jiao)拌(ban)(ban)(ban)器(qi)(qi)來推動。對(dui)于(yu)(yu)低粘(zhan)度(du)(du)液體(ti)(ti)，用傳(chuan)統的推進(jin)式(shi)(shi)(shi)、槳式(shi)(shi)(shi)、渦輪式(shi)(shi)(shi)等(deng)攪(jiao)(jiao)拌(ban)(ban)(ban)器(qi)(qi)基本能解決問題。錨(mao)式(shi)(shi)(shi)和框式(shi)(shi)(shi)攪(jiao)(jiao)拌(ban)(ban)(ban)器(qi)(qi)覆(fu)蓋(gai)了很寬的粘(zhan)度(du)(du)范(fan)圍，但在(zai)較高(gao)粘(zhan)度(du)(du)時錨(mao)式(shi)(shi)(shi)葉輪的混合(he)效果比螺(luo)帶式(shi)(shi)(shi)差(cha)得多，而(er)(er)在(zai)低粘(zhan)度(du)(du)域，它的剪應力不夠，軸向(xiang)循(xun)環(huan)也(ye)很差(cha)，且由于(yu)(yu)其槳徑(jing)對(dui)釜徑(jing)的比值較大，致(zhi)使(shi)回轉(zhuan)部分體(ti)(ti)積也(ye)大，因此只有(you)在(zai)攪(jiao)(jiao)拌(ban)(ban)(ban)消費要求不高(gao)的場合(he)才使(shi)用。然(ran)而(er)(er)，對(dui)于(yu)(yu)傳(chuan)熱的攪(jiao)(jiao)拌(ban)(ban)(ban)主要目的的場合(he)，錨(mao)式(shi)(shi)(shi)攪(jiao)(jiao)拌(ban)(ban)(ban)器(qi)(qi)還是很適用的。

按(an)攪拌(ban)器(qi)(qi)型(xing)式(shi)和適(shi)用(yong)(yong)條件選型(xing)：對低粘度流體混合，推進式(shi)攪拌(ban)器(qi)(qi)由(you)于循環能(neng)力(li)強，動力(li)消耗小(xiao)，可應(ying)用(yong)(yong)到很大容(rong)積(ji)的(de)釜(fu)中；渦輪式(shi)攪拌(ban)器(qi)(qi)應(ying)用(yong)(yong)的(de)范圍廣，各種攪拌(ban)操作都適(shi)用(yong)(yong)，但(dan)流體粘度不(bu)超(chao)過(guo)50Pa.s；槳式(shi)攪拌器(qi)結構簡單，在(zai)小容積的流體(ti)(ti)混(hun)合中應(ying)用較廣，對大溶(rong)劑(ji)的流體(ti)(ti)混(hun)合，則循環能里不足；對于高粘度流體(ti)(ti)的混(hun)合則以錨式(shi)、螺桿(gan)式(shi)、螺帶式(shi)更為合適(shi)。

北(bei)京世紀(ji)森朗實(shi)驗儀(yi)器(qi)有(you)限(xian)公司(si)