我國回轉窯zhongduanshaoshiyoujiaodegongyibiguowaideyaoluohou
，guowaidedabufenshiyoujiaoduanshaofangshishiyongdejizhongduanshao
，yejiushishuoduanshaoguochengshizailianyouchangcaozuo，tansuzhipinqiyesuoyongdeshengchanyuanliaoshiduanhoujiao。youcikeyikanchu
，huizhuanyaoduanshaoshiyoujiaodegongyidefazhanzaiwomenguojiadefazhankongjianhaishifeichangjudade。yinciwomenyaojiakuaihuizhuanyaoduanshaoshiyoujiaodeshengchangongyideyanjiuyijijishushangdegaizaosudu。shiduanshaogongyishuipingdedaoquanmiandetisheng。
        回hui轉zhuan窯yao所suo煆duan燒shao的de石shi油you焦jiao也ye是shi碳tan有you機ji化hua合he物wu的de一yi種zhong
，是shi固gu體ti碳tan質zhi材cai料liao。碳tan在zai自zi然ran界jie中zhong多duo數shu是shi以yi化hua合he物wu的de狀zhuang態tai存cun在zai的de，在zai地di球qiu不bu同tong元yuan素su的de含han量liang中zhong居ju第di十shi三san。原yuan料liao在zai回hui轉zhuan窯yao的de煆duan燒shao過guo程cheng中zhong會hui有you可ke燃ran性的氣體隨著溫度的升高而排出，這個氣體就是揮發分。石油焦中揮發分多少決定於於焦化的工藝條件，因揮發分在回轉窯的煆燒過程中基本被排盡，煆燒後的石油焦中含量很少，隻有0.5%zuoyou，danshiqueshiyingxianghuizhuanyaoduanshaoshishoulvdezhuyaoyinsu。huifafendehanliangyuegao，duanshaoshishoulvjiuhuiyuedi，yinci
，jingguoxiangxidefenxi，zaihuizhuanyaodeduanshaogongyizhong
，huifafendehanliangjiaoheshizhiwei6%以上。當然為了適應生產
，回轉窯用石油焦也有人工合成的。其人造煆燒石油焦見下圖：

        回轉窯煆燒石油焦的流程為：yuanliaoshiyoujiaobeihuocheyundaoyuanliaoku，rengongjiangqixieruchucang，yongzhuadoutianchejiangqiyundaogeshailiaodoujinxingfensui。liaodouzhongdeshiyoujiaokejingdoushitishengjijiangqizhuandaolingyishusongjibingsongdaoduanqiancang，zaiyouzhendonggeiliaoji、pidaichengsongdaohuizhuanyaoneiduanshao，duanshaohoudeliaobeilengquejilengque
，youpidaichenghekenipidaijisongdaoduanhoucanglaibeiyong。huizhuanyaoduanshaoshiyoujiaodegongyiguocheng
，shuomingleshiyoujiaoduanshaodegainianyijimudeheyiyi。
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