ag平台注册

資訊中心
軋鋼基礎知識學習(四)
  發布時間:2020年02月25日 點擊數:

加熱爐的原理

  1、目的

jiaredemudeshibapiliaojiaredaojunyunde、shiheyazhidewendu(aoshitizuzhi)。wendutigaoyihou,shouxianshitigaogangdesuxing,jiangdibianxingkangli,shigangrongyibianxing。rut12gangshiwenxiabianxingkangliyuewei600mpa,jiaredao1200℃shibianxingkanglixiajiangdao30mpazuoyou,zhixiangdangshiwenxiabianxingkanglideershifenzhiyi。jiarewenduheshidegang,yazhishikeyiyongjiaodadeyaxialiang,jianshaoyinmosunhechongjizaochengdeshebeishigu,tigaoyajideshengchanlvhezuoyelv,erqieyazhihaonengyejiaoshao。qici,jiarenenggaishangangpideneibuzuzhihexingneng。bujunyunzuzhihefeijinshujiazawutongguogaowenjiaredekuosanzuoyongerjunyunhua。jiarewenduhejunyunchengdushijiarezhiliangdebiaozhi,jiarezhilianghaodegang,rongyihuodeduanmianxingzhuangzhengque、jihechicunjingquedechengpin。

  2、加熱過程

gangpidejiarewendubaokuobiaomianwendu、yanduanmianshangdewenduchajiyanpizichangdufangxiangshangdewenducha。gangpizailuneidezuizhongjiarewendushikaolvleyazhigongyi、yajidejiegoutedianyijiluzidejiegoutediandengshijiqingkuanghouguidingde。jiaredaoguidingwendusuoxushijian,qujueyugangpidechicun、gangzhong、caiyongdewenduzhidujiyixieqitatiaojian。

ag平台注册gangpizailuneiyiduiliufangshihefushefangshidedaoreliang,qianzheshiluqichongshuagangpibiaomian;houzheshiluqihechiredeluchenfushere。womenjiareluyanchangdufangxiangshangfensanduankongzhi:jiyujiareduan、jiareduanhejunreduan。gangpijinrujiareluyureduan,reliuzhujianzengda,gangpidaoerjiareduan,reliujibenbaochibubian,gangpidaojunreduan,reliuzhujianjianxiao。gangpizaijunreduannei,gangpibiaomianwendujibenbaochibubian,erduanmianwenchazhubusuoxiao,gangpibiaomiandedaodereliangyirechuandaodefangshixiangneibukuosan。chuangeigangpibiaomiandereliuyuexiao、shouremianjiyueda、gangpideduanmianchicunyuexiao、gangdedaorelvyueda,duanmianwenchajiuyuexiao。yibanduanmiandadegangpiyaobiduanmianxiaodegangpijiareshijianyaochang,hejingangyaobitangangdejiareshijianyaochang。

  3、加熱缺陷

hejingangkailie:jiarekaishijieduan(700℃yixia),duigaotangongjugang、gaomenggang、zhouchenggang、gaosugangdengzheleidaorelvxiaodegang,ruguoshengwensuduguokuai、biaomianwenduzouranshenggaoerduanmianwenchaguoda,jiangchanshengreyingli,daozhichuxianliewen。

guoreheguoshao:jiarewenduguogaohuogaowenxiatingliushijianguochang,huishigangdejingliguofenchangda,jinglijiandelianxixueruo,gangbiancui,zhechengweiguore。guoredepiliaoyazhishihuichanshengliewen;jishiyazhimeiyoukailie,chengpindelixuexingnengyebunengmanzuyaoqiu。guoregangpijinxingzhenghuokeyiwanjiu。guorejinyibufazhan,jinglijixuchangda,erqiejingjiechuxianyanghuahuoronghua,yazhishiwangwangsuiliehuobenglie,zhechengweiguoshao。guoshaodepiliaoshibukewanjiudefeipin。zaiyazhizuoyeturanchuxianguzhangtingyashi,rongyichuxianguorehuoguoshaoxianxiang;gaotangangruwendukongzhibudang,yehenrongyizaochengguorehuoguoshaoxianxiang。

gangpideyanghuahetuotan:gangpizailuneijiaredeguochengzhong,gangzhongjinshuyuansuheluneideyanghuaxingqifenfashengfanyingbingshengchanyanghuatiepi(yanghuatiepideneicengshiyanghuatie、zhongjiancengshisiyanghuasantie、zuiwaicengshisanyanghuaertie)。tuotanshigangzhongdetanyuansuxiangbiaomiankuosanbingheluneiqifenfanyingeryinqide。zhouchenggang、gongjugang、danhuanggangheqitayixiegangzhong,gangdetuotanshiyouhaide,tuotanhoudegangjianbiaomianzaicuihuoshidabudaosuoyaoqiudeyingdu,ciwaihuanshikangyaxingneng、naimoxingneng、danxingjiangdi。

yanghuahetuotanguochengshitongshijinxingde,tamendouhejiaretiaojian(wendu、luneishijian、luneiqifenyijipiliaodehuaxuechengfen)youguan。yibanlaishuo,wenduxiaoyu750℃shiyanghuahetuotandoubumingxian。danwendudayu800℃shizengjiadetebiekuai。

tebiezhuyideshi:duiyutangangjiarewenduyibanbunengdayu1300℃,dayuciwendu,qiyi,gangpibiaomiandeyanghuatiepihuironghua(chunyanghuatiepiderongdianwei1377~1565℃,hanyouzazhishijiangdao1300~1350℃),conggangbiaomianshangdiaoxialai,luchuxindebiaomian,shaosunxunsuzengjia。qier,dangjiarewendudayu1300℃shi,gangpihenyoukenenghuichuxianguorehuoguoshao。shengchanqitagangzhongshigengyinggaizhuyizuigaojiarewendu。

ag平台注册gangpiyanghuashaosunhou,biranyingxiangchengcailv;yanghuatiepideredaolvfeichangcha,duigangpidejiareshijianyouyingxiang;yanghuatiepituoluobingduijizailudi,rengongqinglifeichangkunnan,gongzuofeichangxinku。

  4、熱工制度

ag平台注册regongzhidushejiranliaoyukongqijinruluneideqingkuang、ranshaoqingkuang、ranshaochanwudepaichuqingkuangyijiyurehuishouliyongdengqingkuang。regongzhidubaokuowenduzhidu、luyazhiduheluziranshaozhidu。

wenduzhidu:jiarewenduhezhuyishixiangjianxiabiao

jiarewenduhezhuyishixiang

celiangluwenhegangwendeganshouyuanjianshiredianou,cedeshilutangwendu,yibanbigangpibiaomianwendugao20℃yishang。

  5、爐壓制度

ag平台注册jiareluneiluyadaxiaojiqifenbushidiaozhengwenduchang、kongzhihuoyanjiluneiqifendeyigezhongyaoshouduan,tayingxiangjiaresuduhejiarezhiliang,yeyingxiangranliaoliyongdehaohuai。tebieshiluzichuliaoduanchulutangyaliyouweizhongyao。

爐壓設定應比大氣壓力高出0~30Pa左右。爐壓過大則裝料口、出料口、觀察孔等開口部位都會往外冒火,其結果是:⑴爐氣損失增大,使熱損失增大;⑵SO2等有害氣體進入車間使作業環境污染;⑶冒火部位的爐墻、附近的鋼結構或機械設備受損或者變形。反之,爐壓過低,則吸收車間冷空氣將使⑴爐溫降低燃料消耗量增加;⑵低溫空氣對坯料冷卻導致溫度不均;⑶爐氣的含氧量增加導致燒損增加。

  6、燃燒制度

ag平台注册qijibenyaoqiushibaozhengranliaozailutangfanweineiranshaowanquan,tongshikongqixishuαyaoxiao。kongqiguoshengzeyanqiliangda,daizoudereliangzengduo;kongqiliangbuzu,luneixingchengbuwanquanranshao,tongyangshiresunshizengjia。

  7、爐子的操作

ag平台注册chengdejianlongbangcaijiarelushibujinliangxureshijiarelu,tashiyizuofuzadejixiehuayuzidonghuaderegongshebei。tayouluzibenti(bujinxitong)、piliaodeyunshusheshi、shusonggexiangjiezhi(gaolumeiqi、zhuanlumeiqi、kongqi、danqi、yasuokongqi、shui、yeyayou、runhuaji)deguandaoxitong、ranliaoderanshaosheshi、ranshaochanwudepaifangheyurehuishousheshi、regongzhidudekongzhixitong、gebujiandelengquexitong、jiarezhongshengchengyanghuatiepideqingchusheshideng。zhiyoushengchanrenyuanhenhaodelejiehezhangwolezhetaogongyishebei,cainengzhengquedeweihuhecaozuo,jiarelucainengyouhaodezhibiao。shengchanrenyuandegongzuosheji:gangpidezhuanglu、gangpizailuneiyunshu、gangpichulu、gangpidejiarezhiduheluzideregongzhidu;yanghuatiepideqingli;shigutinglu;anjihuatinglujianxiuhejianxiuhoudekailudeng。

jiareludecaozuozhuyaozhuyiyixiajigefangmiandeneirong:

zaisuoyoudediaojieqidoutouruyunxingdeqianqixiaregongzhidudekongzhitongchangshizidongde,diaojieqideshedinglaizigongyiguicheng。zaizidongdiaojieqishilinghuojianxiuhouyongshoudongcaozuo,chuxianshiguhuozidongyuanjiansunhuaishikeyongshoudongcaozuo。

weilebaochiluzinengchangqiyouxiaodeshiyong,yingdingqiweihubingzhuyiqishiyongzhuangkuang;dingqiqingliyanghuatiepi;jingchangjianchaluneishuilenggoujiandeshuiliang、shuiwenheshuiyaqingkuang。

ag平台注册fengjichuxianguzhanghuoturanduandianshigongfenghuizhujianzhongduan,cishiyaoxunsuguandiaoshaozuishangdekong、meiqifamenjimeiqidezhufamen。

honglu:jiareluzaishengchanqian、daxiuhuoxiaoxiuhouyaojinxingchuquqitizhongdeshuifenjihonglu。honglushijianyingkaolvduofangmiandeyinsu。zhelitigongyixiecankaoshuju:mou150tdebujinliangjiarelushengchanqian,yong36hzishiwenshengdao150℃,baowen60h;yi15℃/ hdeshengwensudushengwendao350℃,baowen60h;zaiyi15℃/ hdeshengwensudushengwendao600℃,baowen48h;ranhouyi20℃/ hdeshengwensudushengwendao8000℃,baowen36h;zaiyi20℃/ hdeshengwensudushengwendao1200℃,baowen36h。zongdehonglushijianwei14tian。daxiudehonglushishengwendao200℃bingbaowen4h;yi20℃/ hdeshengwensudushengwendao700℃zaibaowen4 h;zaiyi50℃/ hdeshengwensudushengwendao1200℃houbaowen4h。zongdehonglushijianwei2tian,shijianfuyukeyiyanchangdao3tian。xiaoxiuhoudehonglushiyi25℃/ hdeshengwensudushengwendao600℃zaibaowen6h;zaiyi50℃/ hdeshengwensudushengwendao1200℃houbaowen4h。zongdehonglushijianyue2tian。

ag平台注册dianhuo:xinjian、daxiaoxiuhouhuochangqitingyonghoudeluqianmeiqiguandaozaitongmeiqiqianbixujiangguandaoneidekongqiquanbuqingchu。caozuozhongbingzhuyiguandaojiqifujianyouwuxielou。

ag平台注册jiangguandaojiqifujianneidekongqiqugandaochejianwaidaqizhongdecaozuochengweifangsan,jixianyidanqi(huozhengqi)qugankongqi,zaiyimeiqiqugandanqi(huozhengqi)。fangsanshifenduanjinxingde,bingqieshiyouzongguandaogezhuguanzaidaogezhiguanzuihoudaoshaozuiqianmeiqiguan。tongdanqidaoguidingdeshijianbingquerenzhihuanlianghaohoutingzhitongrudanqi,zaitongrumeiqibingqugandanqicongfangsanguanpaichu,cibuzouwanchenghou,congmeiqiguanlumoduandequyangguanquyangbingzuobaofashiyan,hegehoujikeguanbifangsanfabingrenweiciduanyifangsanwanbi。rubuhegezexuzaiquganyiduanshijianbingzuobaofashiyanzhidaohegeweizhi。

baofashiyanzaizhijing70~100mm、chang300mmzuoyoudeyuantongneijinxing。limeiqixianchangshaoyuandeanquandidianchudianzhuyixiaohuotuanzhiyudishang,jiangchongyoushiyangdeyuantongtongkouyixianghuotuan,dakaitonggaidianzhutongneishiyang,dangzhuhuohehuanmanerwushengdiyizhishaodaotongdishi,zerenweishihege;rudianzhuhouranshaojiaokuai,shuominghuanyouruogankongqi;dianzhuhouxunsuranshaohuochanshengbaoming,shuomingshiyangzhengzaibaozhafanweinei,houliangzhongqingkuangdouyingjixujinxingfangsan,bingzaicizuobaofashiyan。

shaozuiqiandianhuoshi,xianshaoshaoxiangshaozuisongfeng(kongqidiefadakai20%~30%),ranhoudakaishaozuiqiandemeiqifa(dakai1/3~1/2),yongranwangdeyoumianshayinran,zaizhubudiaojiemeiqihekongqiliang。meiqipenchuhouweidianzhu,yinglijiguanbishaozuiqiandemeiqifamen,dengluneikeranhunhewupaichuhouzaizhongxindianhuo。 

laiyuan:yagangzhijia

 

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