威尼斯人官网

轧钢基础知识学习(四)
  发布时间:2020年02月25日 点击数:

加热炉的原理

  1、目的

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

  2、加热过程

威尼斯人官网gangpidejiarewendubaokuobiaomianwendu、yanduanmianshangdewenduchajiyanpizizhangdufangxiangshangdewenducha。gangpizailuneidezuizhongjiarewendushikaolvleyazhigongyi、yajidejiegoutedianyijiluzidejiegoutediandengshijiqingkuanghouguidingde。jiaredaoguidingwendusuoxushijian,qujueyugangpidechicun、gangzhong、caiyongdewenduzhidujiyixieqitatiaojian。

威尼斯人官网gangpizailuneiyiduiliufangshihefushefangshidedaoreliang,qianzheshiluqichongshuagangpibiaomian;houzheshiluqihechiredeluchenfushere。womenjiareluyanzhangdufangxiangshangfensanduankongzhi:jiyujiareduan、jiareduanhejunreduan。gangpijinrujiareluyureduan,reliuzhujianzengda,gangpidaoerjiareduan,reliujibenbaochibubian,gangpidaojunreduan,reliuzhujianjianxiao。gangpizaijunreduannei,gangpibiaomianwendujibenbaochibubian,erduanmianwenchazhubusuoxiao,gangpibiaomiandedaodereliangyirechuandaodefangshixiangneibukuosan。chuanjigangpibiaomiandereliuyuexiao、shouremianjiyueda、gangpideduanmianchicunyuexiao、gangdedaorelvyueda,duanmianwenchajiuyuexiao。yibanduanmiandadegangpiyaobiduanmianxiaodegangpijiareshijianyaozhang,hejingangyaobitangangdejiareshijianyaozhang。

  3、加热缺陷

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

guoreheguoshao:jiarewenduguogaohuogaowenxiatingliushijianguozhang,huishigangdejingliguofenzhangda,jinglijiandelianxixueruo,gangbiancui,zheichengweiguore。guoredepiliaoyazhishihuichanshengliewen;jishiyazhimeiyoukailie,chengpindelixuexingnengyebunengmanzuyaoqiu。guoregangpijinxingzhenghuokeyiwanjiu。guorejinyibufazhan,jinglijixuzhangda,erqiejingjiechuxianyanghuahuoronghua,yazhishiwangwangsuiliehuobenglie,zheichengweiguoshao。guoshaodepiliaoshibukewanjiudefeipin。zaiyazhizuoyeturanchuxianguzhangtingyashi,rongyichuxianguorehuoguoshaoxianxiang;gaotangangruwendukongzhibudang,yehenrongyizaochengguorehuoguoshaoxianxiang。

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

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

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

gangpiyanghuashaosunhou,biranyingxiangchengcailv;yanghuatiepideredaolvfeichangcha,duigangpidejiareshijianyouyingxiang;yanghuatiepituoluobingduijizailudi,rengongqinglifeichangkunnan,gongzuofeichangxinku。

  4、热工制度

威尼斯人官网regongzhidushejiranliaoyukongqijinruluneideqingkuang、ranshaoqingkuang、ranshaochanwudepaichuqingkuangyijiyurehuishouliyongdengqingkuang。regongzhidubaokuowenduzhidu、luyazhiduheluziranshaozhidu。

wenduzhidu:jiarewenduhezhuyishixiangjianxiabiao

jiarewenduhezhuyishixiang

celiangluwenhegangwendeganshouyuanjianshiredianou,cedeshilutangwendu,yibanbigangpibiaomianwendugao20℃yishang。

  5、炉压制度

jiareluneiluyadaxiaojiqifenbushidiaozhengwenduchang、kongzhihuoyanjiluneiqifendeyigezhongyaoshouduan,tayingxiangjiaresuduhejiarezhiliang,yeyingxiangranliaoliyongdehaohuai。tebieshiluzichuliaoduanchulutangyaliyouweizhongyao。

炉压设定应比大气压力高出0~30Pa左右。炉压过大则装料口、出料口、观察孔等开口部位都会往外冒火,其结果是:⑴炉气损失增大,使热损失增大;⑵SO2等有害气体进入车间使作业环境污染;⑶冒火部位的炉墙、附近的钢结构或威尼斯人官网设备受损或者变形。反之,炉压过低,则吸收车间冷空气将使⑴炉温降低燃料消耗量增加;⑵低温空气对坯料冷却导致温度不均;⑶炉气的含氧量增加导致烧损增加。

  6、燃烧制度

威尼斯人官网qijibenyaoqiushibaozhengranliaozailutangfanweineiranshaowanquan,tongshikongqixishuαyaoxiao。kongqiguoshengzeyanqiliangda,daizoudereliangzengduo;kongqiliangbuzu,luneixingchengbuwanquanranshao,tongyangshiresunshizengjia。

  7、炉子的操作

威尼斯人官网chengdejianlongbangcaijiarelushibujinliangxureshijiarelu,tashiyizuofuzadeweinisirenguanwanghuayuzidonghuaderegongshebei。tayouluzibenti(bujinxitong)、piliaodeyunshusheshi、shusonggexiangjiezhi(gaolumeiqi、zhuanlumeiqi、kongqi、danqi、yasuokongqi、shui、yeyayou、runhuaji)deguandaoxitong、ranliaoderanshaosheshi、ranshaochanwudepaifangheyurehuishousheshi、regongzhidudekongzhixitong、gebujiandelengquexitong、jiarezhongshengchengyanghuatiepideqingchusheshideng。zhiyoushengchanrenyuanhenhaodelejiehezhangwolezheitaogongyishebei,cainengzhengquedeweihuhecaozuo,jiarelucainengyouhaodezhibiao。shengchanrenyuandegongzuosheji:gangpidezhuanglu、gangpizailuneiyunshu、gangpichulu、gangpidejiarezhiduheluzideregongzhidu;yanghuatiepideqingli;shigutinglu;anjihuatinglujianxiuhejianxiuhoudekailudeng。

威尼斯人官网jiareludecaozuozhuyaozhuyiyixiajigefangmiandeneirong:

zaisuoyoudediaojieqidoutouruyunxingdeqianqixiaregongzhidudekongzhitongchangshizidongde,diaojieqideshedinglaizigongyiguicheng。zaizidongdiaojieqishilinghuojianxiuhouyongshoudongcaozuo,chuxianshiguhuozidongyuanjiansunhuaishikeyongshoudongcaozuo。

weilebaochiluzinengzhangqiyouxiaodeshiyong,yingdingqiweihubingzhuyiqishiyongzhuangkuang;dingqiqingliyanghuatiepi;jingchangjianchaluneishuilenggoujiandeshuiliang、shuiwenheshuiyaqingkuang。

威尼斯人官网fengjichuxianguzhanghuoturanduandianshigongfenghuizhujianzhongduan,cishiyaoxunsuguandiaoshaozuishangdekong、meiqifamenjimeiqidezhufamen。

威尼斯人官网honglu:jiareluzaishengchanqian、daxiuhuoxiaoxiuhouyaojinxingchuquqitizhongdeshuifenjihonglu。honglushijianyingkaolvduofangmiandeyinsu。zheilitigongyixiecankaoshuju: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,shijianfuyukeyiyanzhangdao3tian。xiaoxiuhoudehonglushiyi25℃/ hdeshengwensudushengwendao600℃zaibaowen6h;zaiyi50℃/ hdeshengwensudushengwendao1200℃houbaowen4h。zongdehonglushijianyue2tian。

dianhuo:xinjian、daxiaoxiuhouhuozhangqitingyonghoudeluqianmeiqiguandaozaitongmeiqiqianbixujiangguandaoneidekongqiquanbuqingchu。caozuozhongbingzhuyiguandaojiqifujianyouwuxielou。

jiangguandaojiqifujianneidekongqiqugandaochejianwaidaqizhongdecaozuochengweifangsan,jixianyidanqi(huozhengqi)qugankongqi,zaiyimeiqiqugandanqi(huozhengqi)。fangsanshifenduanjinxingde,bingqieshiyouzongguandaogezhuguanzaidaogezhiguanzuihoudaoshaozuiqianmeiqiguan。tongdanqidaoguidingdeshijianbingquerenzhihuanlianghaohoutingzhitongrudanqi,zaitongrumeiqibingqugandanqicongfangsanguanpaichu,cibuzhouwanchenghou,congmeiqiguanlumoduandequyangguanquyangbingzuobaofashiyan,hegehoujikeguanbifangsanfabingrenweiciduanyifangsanwanbi。rubuhegezexuzaiquganyiduanshijianbingzuobaofashiyanzhidaohegeweizhi。

威尼斯人官网baofashiyanzaizhijing70~100mm、zhang300mmzuoyoudeyuantongneijinxing。limeiqixianchangshaoyuandeanquandidianchudianzheyixiaohuotuanzhiyudishang,jiangchongyoushiyangdeyuantongtongkouyixianghuotuan,dakaitonggaidianzhetongneishiyang,dangzhehuohehuanmanerwushengdiyizhishaodaotongdishi,zerenweishihege;rudianzhehouranshaojiaokuai,shuominghaiyouruogankongqi;dianzhehouxunsuranshaohuochanshengbaoming,shuomingshiyangzhengzaibaozhafanweinei,houliangzhongqingkuangdouyingjixujinxingfangsan,bingzaicizuobaofashiyan。

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

laiyuan:yagangzhijia

 

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