能源在人們生產並賴以生存的重要物質基礎，當然在回轉窯的運轉中也是不可或缺的，回轉窯運轉中的能耗是構成工作效益的重要標準。普通的水泥回轉窯的熱效率僅為30%左右，比較先進的懸浮預熱器也隻有50%左zuo右you，因yin此ci節jie能neng降jiang耗hao是shi當dang下xia較jiao關guan鍵jian的de問wen題ti。因yin此ci對dui於yu回hui轉zhuan窯yao運yun轉zhuan中zhong的de節jie能neng問wen題ti被bei各ge廠chang家jia長chang期qi進jin行xing著zhe研yan究jiu，隨sui著zhe社she會hui的de進jin步bu，一yi種zhong名ming叫jiao變bian頻pin調tiao速su的de裝zhuang置zhi出chu現xian在zai人ren們men的de眼yan前qian。並bing得de到dao了le很hen好hao的de應ying用yong。    
        在zai回hui轉zhuan窯yao的de主zhu傳chuan動dong中zhong電dian機ji拖tuo動dong係xi統tong是shi作zuo為wei動dong力li源yuan的de。在zai回hui轉zhuan窯yao內nei的de運yun轉zhuan特te性xing則ze要yao求qiu電dian機ji係xi統tong具ju有you很hen高gao的de啟qi動dong轉zhuan矩ju，具ju有you穩wen定ding的de調tiao速su且qie平ping滑hua。國guo內nei較jiao早zao建jian成cheng的回轉窯的啟動調速大多數都是運用的繞線電機串電阻裝置
，在80年nian代dai後hou

，隨sui著zhe大da容rong量liang的de晶jing體ti管guan工gong藝yi的de進jin步bu，滯zhi留liu電dian機ji調tiao速su係xi統tong被bei廣guang泛fan應ying用yong於yu回hui轉zhuan窯yao中zhong。但dan是shi因yin回hui轉zhuan窯yao具ju有you高gao熱re輻fu射she，導dao致zhi附fu近jin的de直zhi流liu電dian機ji的de碳tan刷shua以yi及ji整zheng流liu子zi頭tou損sun壞huai比bi較jiao嚴yan重zhong
，低di速su運yun轉zhuan不bu穩wen定ding，且qie耗hao電dian非fei常chang大da等deng問wen題ti的de出chu現xian。
        zaihuizhuanyaodedianjituodongxitongzhongyunyongbianpintiaosujishu
，xingchengjiaoliutiaosutuodongxitong，keyihenhaodetihuandiaozhiliutiaosuxitong，jienengxiaoguofeichangxianzhu。jiaoliutiaosutuodongxitongzhuyaoshiyoubianpinqiyijijiaoliudiandongjisuogouchengde。bianpinqiyejiushiwomensuoshuodewuyuannibianzhuangzhi，tahuijianggongpinjiaoliudianzhuanhuanchengsuoxuyaodepinlvdejiaoliudian
，gongfuzaishiyong，xitongzhongsuoyingyongdebianpinqishiPLC可ke編bian程cheng的de控kong製zhi器qi控kong製zhi，交jiao流liu電dian動dong機ji會hui在zai變bian頻pin器qi的de驅qu動dong下xia，來lai進jin行xing回hui轉zhuan窯yao的de拖tuo動dong任ren務wu，並bing使shi回hui轉zhuan窯yao的de雙shuang機ji拖tuo動dong變bian頻pin調tiao速su以yi及ji同tong步bu控kong製zhi都dou可ke以yi實shi現xian，並bing達da到dao回hui轉zhuan窯yao啟qi動dong轉zhuan矩ju高gao的de要yao求qiu，在zai回hui轉zhuan窯yao的de運yun轉zhuan過guo程cheng中zhong

，調tiao速su操cao作zuo非fei常chang簡jian便bian，調tiao速su的de過guo程cheng也ye很hen平ping滑hua穩wen定ding
，節jie能neng方fang麵mian是shi顯xian而er易yi見jian的de。另ling外wai，此ci項xiang技ji術shu對dui於yu所suo有you的de回hui轉zhuan窯yao的de主zhu傳chuan動dong係xi統tong都dou適shi用yong
，所suo以yi其qi具ju有you很hen好hao的de通tong用yong性xing。
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