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     烘(hong)(hong)(hong)(hong)干機要(yao)做到節能(neng)降耗最主要(yao)的(de)(de)就是(shi)(shi)(shi)(shi)(shi)提高熱(re)利用(yong)率。烘(hong)(hong)(hong)(hong)干機在(zai)烘(hong)(hong)(hong)(hong)干過程(cheng)中會有(you)尾氣(qi)排(pai)出，經過研究(jiu)，這些尾氣(qi)中不(bu)僅含有(you)顆粒狀(zhuang)的(de)(de)物料(liao)，還含有(you)大約(yue)百分之四十五左右的(de)(de)熱(re)量，這些熱(re)量就是(shi)(shi)(shi)(shi)(shi)白(bai)白(bai)損失掉的(de)(de)一部分。因此，我們在(zai)烘(hong)(hong)(hong)(hong)干機排(pai)放尾氣(qi)的(de)(de)除(chu)塵(chen)設(she)備處應該配有(you)必要(yao)的(de)(de)循(xun)(xun)環裝(zhuang)置，這種裝(zhuang)置的(de)(de)作用(yong)就是(shi)(shi)(shi)(shi)(shi)把尾氣(qi)收(shou)集(ji)起來循(xun)(xun)環再(zai)利用(yong),沙子烘(hong)(hong)(hong)(hong)干機設(she)備價格，能(neng)有(you)效(xiao)的(de)(de)減少(shao)熱(re)損耗。尤(you)(you)其(qi)(qi)是(shi)(shi)(shi)(shi)(shi)在(zai)烘(hong)(hong)(hong)(hong)干一些酸性物料(liao)是(shi)(shi)(shi)(shi)(shi)，這種方法尤(you)(you)其(qi)(qi)重要(yao)，因為酸性氣(qi)體(ti)排(pai)入大氣(qi)會對環境造成很嚴重的(de)(de)污染，這種方式不(bu)僅可以有(you)效(xiao)的(de)(de)降低熱(re)耗，還能(neng)減少(shao)廢氣(qi)中酸性氣(qi)體(ti)的(de)(de)含量，大大提高了(le)對環保的(de)(de)要(yao)求。