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一)移動(dong)式攪拌器(qi)
專利夾頭(tou),無(wu)松動(dong)、無(wu)搖擺、不會脫(tuo)落,安全可靠(kao)。鍍鉻支桿,下粗上細,鋼(gang)性強、結構合(he)理(li)。具(ju)有(you)移動(dong)方(fang)便,重量輕等優點.適(shi)合(he)各類小(xiao)型容器(qi)。攪(jiao)(jiao)(jiao)拌(ban)(ban)(ban)(ban)器(qi)是一種使液體、氣體介質強迫對流并均勻混(hun)合(he)的(de)(de)(de)(de)器(qi)件。攪(jiao)(jiao)(jiao)拌(ban)(ban)(ban)(ban)器(qi)的(de)(de)(de)(de)類型、尺寸、轉速(su)、功率等參數(shu),對介質攪(jiao)(jiao)(jiao)拌(ban)(ban)(ban)(ban)混(hun)合(he)的(de)(de)(de)(de)效果(guo)有(you)著重要(yao)影響。不同(tong)的(de)(de)(de)(de)攪(jiao)(jiao)(jiao)拌(ban)(ban)(ban)(ban)過(guo)程需要(yao)由不同(tong)的(de)(de)(de)(de)攪(jiao)(jiao)(jiao)拌(ban)(ban)(ban)(ban)裝(zhuang)(zhuang)置運行來(lai)實現,在(zai)設計選(xuan)型時(shi)(shi)首先要(yao)根據工藝對攪(jiao)(jiao)(jiao)拌(ban)(ban)(ban)(ban)作(zuo)業的(de)(de)(de)(de)目的(de)(de)(de)(de)和要(yao)求確定攪(jiao)(jiao)(jiao)拌(ban)(ban)(ban)(ban)器(qi)的(de)(de)(de)(de)類型、電機(ji)功率、攪(jiao)(jiao)(jiao)拌(ban)(ban)(ban)(ban)速(su)度,然(ran)后選(xuan)擇減速(su)機(ji),機(ji)架、攪(jiao)(jiao)(jiao)拌(ban)(ban)(ban)(ban)軸、軸封等各部件。使用獨特(te)的(de)(de)(de)(de)虎鉗(qian),可在(zai)開(kai)式(shi)槽(cao)上部邊緣(yuan)直接(jie)安裝(zhuang)(zhuang)。工作(zuo)時(shi)(shi),攪(jiao)(jiao)(jiao)拌(ban)(ban)(ban)(ban)軸偏離槽(cao)的(de)(de)(de)(de)中央位置,而且與(yu)垂直方(fang)向傾斜一定角(jiao)度。攪(jiao)(jiao)(jiao)拌(ban)(ban)(ban)(ban)軸與(yu)垂直方(fang)向傾斜夾角(jiao)為5°~20°,因而根據魯辛頓(Rushton)理(li)論,在(zai)槽(cao)內即使不安裝(zhuang)(zhuang)擋板也不會出(chu)現打旋(xuan)現象或局(ju)部死區,攪(jiao)(jiao)(jiao)拌(ban)(ban)(ban)(ban)效率高(gao)。小(xiao)型輕便、結構簡單(dan)。
二)推進式(側入)攪拌(ban)器(qi)
側入式(shi)攪(jiao)(jiao)拌(ban)(ban)(ban)(ban)機(ji)是將攪(jiao)(jiao)拌(ban)(ban)(ban)(ban)裝置安裝在設備(bei)筒體的(de)(de)側壁(bi)上,攪(jiao)(jiao)拌(ban)(ban)(ban)(ban)機(ji)上的(de)(de)攪(jiao)(jiao)拌(ban)(ban)(ban)(ban)器通(tong)常(chang)采用軸流型,以推進式(shi)攪(jiao)(jiao)拌(ban)(ban)(ban)(ban)器為多,在消耗同(tong)等功(gong)率情況下,能得到(dao)高的(de)(de)攪(jiao)(jiao)拌(ban)(ban)(ban)(ban)效果,功(gong)率消耗僅為頂(ding)攪(jiao)(jiao)拌(ban)(ban)(ban)(ban)的(de)(de)1/3~2/3,成本(ben)僅為頂(ding)攪(jiao)(jiao)拌(ban)(ban)(ban)(ban)的(de)(de)1/4~1/3。轉速(su)可(ke)在200~750r/min。
廣泛(fan)用于(yu)脫硫、除硝(xiao)以及各種大型貯罐或(huo)貯槽(cao)的(de)攪拌(ban)。特別是在(zai)(zai)大型貯槽(cao)或(huo)貯罐中(zhong)利用一臺或(huo)多(duo)臺側(ce)入式攪拌(ban)機一起工(gong)作,在(zai)(zai)消耗低(di)能耗的(de)情況下(xia)便可以得到良好的(de)攪拌(ban)效(xiao)果。
三(san))錨式(shi)(框式(shi))攪拌器
錨(mao)式(shi)、框式(shi)攪(jiao)(jiao)拌器(qi)屬于同(tong)一類(lei),統(tong)稱錨(mao)框式(shi)攪(jiao)(jiao)拌器(qi),該(gai)種攪(jiao)(jiao)拌器(qi)的葉(xie)輪槳(jiang)徑對罐(guan)徑之比(bi)較大。使用(yong)于低粘(zhan)度液體(ti)(ti)時,錨(mao)式(shi)葉(xie)輪的葉(xie)徑與罐(guan)徑比(bi)為(wei)0.7~0.9,對于高黏度液體(ti)(ti)則為(wei)0.8~0.95.轉速通常為(wei)10~50r/min。
為了增(zeng)大攪拌范圍(wei)和帶(dai)走罐(guan)(guan)壁上(shang)的(de)殘留物或(huo)液層,錨框(kuang)式(shi)(shi)攪拌器的(de)外(wai)廓要接近攪拌罐(guan)(guan)的(de)內壁,其底(di)部的(de)形(xing)狀為適應(ying)罐(guan)(guan)底(di)的(de)輪廓也有(you)橢圓(yuan)、錐(zhui)形(xing)等。為了增(zeng)大對(dui)高(gao)粘度物料的(de)攪拌范圍(wei)以及(ji)提(ti)高(gao)葉輪的(de)剛性,還常常要在錨式(shi)(shi)及(ji)框(kuang)式(shi)(shi)上(shang)增(zeng)加一些立(li)葉和橫梁,這樣使得錨框(kuang)式(shi)(shi)的(de)結(jie)構形(xing)狀出現了多(duo)種多(duo)樣。
四)折葉(漿式)攪拌器
折葉漿式(shi)攪拌器是(shi)典型(xing)的軸(zhou)流(liu)型(xing)攪拌器,高排液(ye)(ye)量(liang),低(di)剪切(qie)性能;采用擋板或導流(liu)筒則軸(zhou)向(xiang)循環更強.因為它循環能力(li)強,動力(li)消(xiao)耗低(di),在低(di)黏(nian)(nian)度(du)大容量(liang)均相,混合過程中應用能體(ti)(ti)現(xian)它的優(you)勢.在低(di)黏(nian)(nian)度(du)的液(ye)(ye)體(ti)(ti)傳(chuan)熱,反應,懸液(ye)(ye),液(ye)(ye)液(ye)(ye)溶解等過程中應用廣(guang)泛
常用(yong)(yong)介質黏度小于(yu)2000mPa.s,常用(yong)(yong)轉速n=200—900rpm,DJ/D容(rong)器徑=0.2—0.4,溶(rong)位較深大于(yu)DJ的(de)7倍以(yi)時上可采用(yong)(yong)雙層(ceng)葉輪.安(an)(an)裝時可垂直安(an)(an)裝,或小于(yu)15o傾斜安(an)(an)裝.偏(pian)離容(rong)器中(zhong)心或傾斜安(an)(an)裝時,相當于(yu)容(rong)器內加擋板。