3d之家

阔海环保专业生产销售电袋,布袋,脉冲,锅炉,袋式,静电,单机电袋除尘器。厂家3d之家:18903178757
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3d之家来到河北阔海环保工程3d之家官方网站,我公司专业制作安装焦化、矿山、铸造、电厂、钢厂等行业的各种除尘设备。我们将竭诚为您服务!
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当前位置:3d之家 > 技术文档 > 焦化厂装煤除尘系统中问题探讨
焦化厂装煤除尘系统中问题探讨
添加时间:2021-09-09
浏览量:3
焦化生产是钢铁联合企业中大废气发生源之一,焦炉烟尘污染源主要分布于炉顶、机焦两侧和熄焦。炼焦生产中随各个工艺装备和操作管理水平的不同,每 吨焦炉煤气可产生烟尘几公斤乃至几十公斤不等。焦炉装煤时排放的污染物占炼焦过程中全部排放物的50%~60%,而且污染物以气态夹带固态粉尘的形式出 现,其数量因炭化室容积装煤方式和测试方法有很大差异,主要有CO、CO2、H2S、多环芳烃及细小煤尘,煤尘发生量为0.5~1.6 kg/t焦和40~50m3烟气/t焦。所以,对装煤时烟尘的治理可以大量降低焦化企业污染物的排放,对环境保护意义重大。该文针对我国自行设计建造的焦 耐60型焦炉装煤除尘系统进行分析评价,对存在的问题进行了深入探讨,并提出改进措施,收到了良好效果。

1、ZHUANGMEICHUCHENXITONGGONGZUOYUANLIJIZHUYAOYINGXIANGYINSU

装煤车把煤通过装煤孔装入赤热的炭化室时,煤中水分转为水蒸气,其和煤产生的挥发分造成炭化室内压力突然上升,形成大量烟尘从炭化室逸出。装煤除尘 系统就是针对焦炉装煤过程中产生粉尘进行净化。国内外装煤消烟除尘技术主要有以下两种方式:一种是装煤除尘无地面站式;另一种是装煤车预除尘与地面站净化 处理3d之家组合方式。两种处理方法各有其特点。该研究的焦耐60型焦炉采用的是装煤除尘无地面站式,该系统管道下方设有抽风口与生产工艺联锁,每次装煤时对应抽 风口开启,其余关闭。系统工作由液力耦合器进行调速,装煤时风机转速达到高1450r/min左右。

CHUCHENXITONGYOUGUANWANG、CHUCHENQIHEFENGJI3BUFENZUCHENG。FENGJITIGONGXITONGDEDONGLI,JIANGSHENGCHANGANGWEICHANSHENGDEFENCHENTONGGUOGUANWANGYUNSHUDAOCHUCHENQI,CHUCHENQIDUIFENCHENJINXINGJINGHUACHULI,FEIQIZHONGDEFENCHENKELIBEIBUJIXIALAI,GANJINGQITIJINGFENGJIYOUYANCONGPAIFANG,ZHUANGMEICHUCHENXITONGLIUCHENGRUTU1SUOSHI。

KEJIANCHUCHENXITONGDEZHENGCHANGYUNXING,SHIGUANWANG、CHUCHENQIHEFENGJI3BUFENLIANGHAOPEIHE,FENGONGXIEZUODEJIEGUO,RENHEYIGEHUANJIECHUXIANWENTI,DOUHUIJICHUCHENXITONGDEYUNXINGXIAOGUODAILAIYANZHONGYINGXIANG,YINCIDUIYIGECHUCHENXITONGJINXINGZONGHEJISHUPINGGU,YINGGAICONGSHANGSHU3GEFANGMIANRUSHOU。

3d之家GUANWANGDEBUJISHICHUCHENXITONGGONGZUODEQIANTIHEJICHU,YINWEIZHIYOUGUANWANGBUJIDAOFENCHEN,CHUCHENQICAINENGJINGHUA,YINCIGUANWANGSHICHUCHENXITONGBUJIXIAOGUOHAOHUAI、GANGWEIHUANJINGZHILIANGNENGFOUDABIAODEGUANJIAN。 YINGXIANGCHUCHENXITONGGUANWANGBUJIXIAOGUODESHOUYAOYINSUSHIXITONGYAOYOUZUGOUDEFENGLIANG,JIWEICHUCHENXITONGCHENGGONGYUNXINGDEBAOZHENG;QICI,DUICHUCHENDIANYINGJINLIANGMIBI,FOUZE,FENGLIANGZAIDA,CHOURUDEDOUSHIYEFENG,BU NENGYOUXIAOBUJIFENCHEN;ZAIJIUSHIGUANWANGDEZULIPINGHENGWENTI。

3d之家DAXINGDECHUCHENXITONGGUANWANG,TONGCHANGYOUGANGUANHERUOGANZHIGUANJIGEXICHENDIANZUCHENG,SUIRANXITONGSHEJISHIJINXINGLEXIANCHANGDIAOSHI,DANSHIJINGGUOJINIANDEYUNXING,YOUYUSHIJISHENGCHANQINGKUANGDEBIANHUAYIJIDIAOJIEFA MENSHIXIAODENGZHUDUOYUANYIN,ZAOCHENGCHUCHENXITONGGUANWANGZULISHIHENG,MOUXIEGUANLUFENGLIANGGUODA,FENGSUGUOGAO,ZULIZENGJIA,GUANDAOMOSUN;MOUXIEGUANLUFENGLIANGGUOXIAO,FENGSUGUODI,FENCHENCHENJIANGDUSAIGUANDAO。YIGEGUAN LUSHUNCHANGDEXITONG,RUGUOYUANSHISHEJIFENGLIANGMANZUFENCHENBUJIXUYAO,JIUNENGDAXIANDUDIBUJIFENCHEN。RUGUOCHUCHENXITONGFENGLUWENLUAN,BUNENGHENYOUXIAODIBUJIFENCHEN,JISHICHUCHENQIMANFUHEYUNZHUAN,GANGWEIHUAN JINGRENGRANBUDUANEHUA,GANGWEIFENCHENNONGDUCHAOBIAO。

除尘系统中采用布袋除尘器,布袋除尘器的净化机理是:含尘气流通过吸附粉尘的滤料,通过筛滤作用、惯性作用、拦截作用、扩散作用、重力沉降作用、静电作用等来使粉尘颗粒与气体分离,从而达到净化粉尘的目的。影响布袋除尘器除尘效果的因素主要有以下2个方面:

(1)LVLIAOJIEGOUJIFENCHENCENGHOUDU。BUDAICHUCHENQIDEGUOLVZHUYAOKAOLVLIAOSHANGCENGDEZUOYONG,LVLIAOZHIQIXINGCHENGFENCHENCHUCENGHEZHICHENGCHUCHENGUJIADEZUOYONG,YINCIBUNENGGUOFENQINGHUI,FOUZEHUIYINQICHUCHENXIAOLVDEXIAJIANG,ERKONGZHIQINGHUI,BAOCHIFENCHENCHUCENG,CAINENGDEDAOJIAOGAODECHUCHENXIAOLV。

(2)GUOLVSUDU。GUOLVSUDUDUIBUDAICHUCHENQIXIAOLVDEYINGXIANGYINLVLIAO、GUOLVFANGSHIJIFENCHENLIDUDEBUTONGERBUTONG。DUIYUXIFENCHEN,GUOLVSUDUYINGXIAOXIE,DUIYUCUFENCHEN,GUOLVSUDUYINGDAXIE。DUIYUNEILVCHUCHENBUDAI,GAOSUGUOLVBUYICHUANKONG,GUOLVSHIZAIZHANNEIBUJINXINGDE,ZHANNEIRONGCHENLIANGDA,QINGHUIHOURENGNENGBAOZHENGJIAOGAODECHUCHENXIAOLV。YINCINEILVSHIBUDAI,KEYICAIYONGJIAOGAODEGUOLVFENGSU。

3d之家FENGJISHIZHENGGECHUCHENXITONGDEDONGLILAIYUAN,SHICHUCHENXITONGZHENGCHANGYUNXINGDEQIANTIBAOZHENG。GENJUCHUCHENXITONGJINGHUAXICHENDIANDESUOXUFENGLIANGJIGUANWANGZHUANGKUANGYUCHUCHENQILEIXING,QUEDINGCHUCHENXITONGDECHULIFENGLIANG HEZULI,XUANZEFENGLIANGHEQUANYASHIYIDEFENGJI,SHICHUCHENXITONGGUANWANGDEZULIQUXIANYUFENGJIDEXINGNENGQUXIANJIAODIANCHUZAIFENGJIXINGNENGQUXIANDEJIAGONGKUANGDIANSHANG,BAOZHENGFENGJIGAOXIAOLVPINGWENDIYUNXING,YITIGONGJI XITONGZUGOUDEFENGLIANG。

2、ZHUANGMEICHUCHENXITONGCESHI

3d之家CHUCHENXITONGGUANWANGZULIPINGHENGCESHIPINGGU: YOUYUCHUCHENXITONGCHUSHISHEJIJINXINGLEZULIPINGHENGJISUAN,SUOYIZHIYAOJINLIANGBAOCHIYUXITONGYUANSHISHEJIFENGLIANGXIANGTONGHUOXIANGJIN,JIUKEYIRENWEICHUCHENXITONGZULIDADAOPINGHENG。GONGCHENGSHANGTONGCHANGRENWEISHICEFENGLIANGYUYUANSHISHEJIFENGLIANGXIANGCHA±25%YINEIJIWEIXIANGFU,JUEDUIBUYUNXUCHAOGUOSHEJIFENGLIANG±40%。

CHUCHENQIJISHUXINGNENGCESHIPINGGU:BIAOZHUNGUIDINGZHANGDAIMAICHONGPENCHUILEICHUCHENQI,CHUKOUHANCHENNONGDUBUDAYU100mg/Nm3,CHUCHENQIZULIXIAOYU1500Pa,LOUFENGLVBUDAYU4%,GUOLVFENGSU1~2m/min。

3d之家FENGJIYUNXINGZHUANGKUANGCESHIPINGGU:TONGGUOCESHIFENGJIDEFENGLIANG、QUANYA、ZHUANSHU,DUIZHAOFENGJIDEXINGNENGQUXIAN,PANDUANFENGJIDEGONGZUOZHUANGKUANGSHIFOUZAIXINGNENGQUXIANDEJIAGONGKUANGDIANJICHUYUFENGJIYUNXINGXIAOLVJIAOGAODUAN83%~93%。

GANGWEIHUANJINGZHILIANGCESHIPINGGU:CHUCHENXITONGBUJI、JINGHUAFENCHENZHONGDADAOGAISHANHUANJINGZHILIANGDEMUDE,TONGGUOGANGWEIFENCHENNONGDUDAXIAOJINXINGGANGWEIHUANJINGZHILIANGPINGGU,GUOJIABIAOZHUNGUIDINGGANGWEIFENCHENNONGDUXIANZHIWEI10mg/m3。

3d之家GAIXITONGYUANSHEJIFENGLIANGWEI80000m3/h;XIANFENGJIYUNXINGDESHIJIFENGLIANGWEI79626m3/h,YUXITONGYUANSHEJIFENGLIANGJIBENXIANGDANG,MANZUCHUCHENXITONGYUNXINGFENGLIANG。

3d之家CHUCHENQIXINGNENGCESHIJIEGUOXIANSHI,GAICHUCHENQIDECHUCHENXIAOLVWEI97.09%,ZAIRUKOUNONGDUWEI902.3mg/m3SHI,CHUKOUNONGDUWEI26.3mg/m3,FENCHENPAIFANGNONGDUFU HE《DAQIWURANWUZONGHEPAIFANGBIAOZHUN》(GB16297-1996)JINGHUAHOUCHUKOUHANCHENNONGDUBUDAYU120mg/m3HEMAICHONGPENLEIDAISHICHUCHENQIJB/T 8532-1997JINGHUAHOUCHUKOUHANCHENNONGDUBUDAYU100mg/m3DEBIAOZHUNYAOQIU。

CHUCHENQIDELOUFENGLV9.0%,GAOYUMAICHONGPENLEIDAISHICHUCHENQIJB/T8532-1997GUIDINGLOUFENGLVBUDAYU4%DEXIANZHI。CHUCHENQIZULIWEI3978Pa,DADAGAOYUMAICHONGPENLEIDAISHICHUCHENQIJB/T 8532-1997GUIDINGDEZULIXIAOYU1500PaDEXIANZHI。

3d之家CHUCHENQIGUOLVFENGSUWEI1.2 m/min,ZAIMAICHONGPENLEIDAISHICHUCHENQIJB/T 8532-1997GUIDINGDEGUOLVFENGSUWEI1-2 m/minDEFANWEINEI。

3d之家FENGJICESHIJIEGUOXIANSHI,FENGJIZHUANSUZAI1445r/minSHI,FENGJISHIJIFENGLIANGWEI79626m3/h,QUANYAWEI4611Pa(HUANSUANZHI80℃),DUIZHAOFENGJIBIAOPAISUOJISHU ZHI(ZHUANSHUZAI1450r/min,FENGLIANGWEI80000m3/h,QUANYAWEI6500Pa),DANGFENGJIQUANYAWEI4611PaSHI,YUNXINGFENGLIANGYINGDAYU80000 m3/h,BIAOMINGFENGJIYUNXINGXINGNENGBUJIA。JINGUANFENGJIYUNXINGFENGLIANGJIBENMANZUCHUCHENXITONGFENGLIANGYAOQIU,DANJIUFENGJIBENSHENLAISHUO,QIYUNXINGXINGNENGBUJIA。

CHUCHENXITONGCUNZAIDEWENTIZHUYAOYOU:

(1)CHUCHENQIDELOUFENGLVJIAOGAO,GUANDAOJICHUCHENQIMIFENGXINGJIAOCHA。

(2)CHUCHENQIZULIGAOYUMAICHONGPENCHUILEIDAISHICHUCHENQI(JB/T8532-1997)GUIDINGDEZULIXIAOYU1500PaDEXIANZHI,CHUCHENQIMAICHONGQINGHUIXIAOGUOBUJIA。

(3)FENGJIYUNXINGXINGNENGBUJIA。

3 GAIJINCUOSHI

3d之家(1)JIAQIANGDUIGUANDAOFALANLIANJIECHU、HUNFENGFAJICHUCHENQIDEMIFENG,JIANXIAOLOUFENG。

3d之家(2)DUICHUCHENQIMAICHONGQINGHUIXIAOGUOJINXINGQUEREN,SHUYUQINGHUIZHIDUWENTI,JINXINGQINGHUIZHIDUDIAOZHENG;SHUYUQINGHUIQIANGDUWENTI,JIADAQINGHUILIDU,SHIZHIMANZUXITONGQINGHUIYAOQIU。TONGSHIDINGQIQIANGXINGJINXINGCHEDIDEFANCHUIQINGHUI,JIANGDICHUCHENQIZULI。

(3)JIANYIYUFENGJISHENGCHANCHANGJIAJINXINGFENGJIXINGNENGQUEREN,CHAZHAODAOZHIXITONGFENGLIANGJIAOXIAODEYUANYIN。RUSHUYUFENGJIBENSHENWENTI,YINGJISHIJINXINGWEIXIUHUOGENGHUAN,YISHIFENGJICHUYUJIAGONGZUOZHUANGTAI,MANZUXITONGFENGLIANGXUQIU。

布袋除尘器