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公司新聞

反應過(guò)程中攪拌的發(fā)展過(guò)程

來(lái)源: 時(shí)間:2012-12-13 14:49:39 瀏覽次數:

攪拌設備使用歷史悠久,大量應用于化工、石化、醫藥、食品、采礦、造紙、涂料、冶金、廢水處理等行業(yè),尤其是在化學(xué)工業(yè)中,很多化工生產(chǎn)或多或少地應用著(zhù)攪拌操作,且相當一部分是用作化學(xué)反應器的。
攪拌設備使用歷史悠久,大量應用于化工、石化、醫藥、食品、采礦、造紙、涂料、冶金、廢水處理等行業(yè),尤其是在化學(xué)工業(yè)中,很多化工生產(chǎn)或多或少地應用著(zhù)攪拌操作,且相當一部分是用作化學(xué)反應器的。例如,在三大合成材料(合成橡膠、合成纖維、合成塑料)的生產(chǎn)中,采用攪拌設備作反應器的,約占反應器總數的85%以上。而在其他應用領(lǐng)域,攪拌設備更多的是用于物料的混合、溶解、傳熱、傳質(zhì)以及制備乳液、懸浮液等。
在化工生產(chǎn)過(guò)程中,為化學(xué)反應提供反應空間和反應條件的裝置稱(chēng)為反應釜或反應設備。為了使化學(xué)反應快速均勻進(jìn)行,需對參加化學(xué)反應內物質(zhì)進(jìn)行充分混合,且對物料加熱或冷卻,采取攪拌操作才能得到良好的效果。
實(shí)現攪拌的方法有機械攪拌、氣流攪拌、射流攪拌、靜態(tài)(管道)攪拌和電磁攪拌等。其中機械攪拌應用早,至今仍被廣泛采用。機械攪拌反應釜簡(jiǎn)稱(chēng)攪拌反應釜。
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