焦(jiao)爐(lu)地面除塵站工藝(yi)流程：

除塵系統由離心風機、主電機、變頻器、儀表系統、循環冷卻水系統、壓縮空氣系統及管網系統組成。在煉焦生產過程中，煙塵通過導管被吸入除塵干管，在重力除塵器內將大顆粒粉塵分離，直接流入灰斗。較小的粉塵均勻地進入布袋除塵器中部(bu)的(de)箱體后(hou)，吸附在濾袋(dai)的(de)外(wai)表面上(shang)，含(han)塵氣(qi)體經濾袋(dai)過濾后(hou)進入凈氣(qi)室(shi)，經排(pai)風(feng)管排(pai)入大氣(qi)。當(dang)濾袋(dai)阻力(li)達(da)到限定值(zhi)1500Pa時，清(qing)灰裝置按(an)差壓(ya)(ya)程序打開電(dian)控(kong)脈沖(chong)閥(fa)進行脈沖(chong)噴吹，此(ci)時壓(ya)(ya)縮空氣(qi)將濾袋(dai)表面附著的(de)粉塵抖落，經灰斗由排(pai)灰機構排(pai)出。該套除塵系統(tong)采用PLC自(zi)動控(kong)制(zhi)技術，由除塵地面站中控(kong)制(zhi)室(shi)集中監控(kong)，同(tong)時還設置了手動控(kong)制(zhi)開關，便于檢修。

焦爐除塵器原理：

焦(jiao)爐(lu)除塵(chen)(chen)(chen)地(di)面站系(xi)統用于(yu)導通(tong)除塵(chen)(chen)(chen)器(qi)與(yu)攔(lan)(lan)焦(jiao)車(che)(che)集(ji)塵(chen)(chen)(chen)罩(zhao),使(shi)(shi)(shi)焦(jiao)側(ce)煙塵(chen)(chen)(chen)通(tong)過此干管進(jin)入(ru)除塵(chen)(chen)(chen)地(di)面站進(jin)行(xing)處理,是移動塵(chen)(chen)(chen)源與(yu)固(gu)(gu)定設備之(zhi)間(jian)(jian)(jian)的(de)連(lian)接(jie)通(tong)道.出焦(jiao)集(ji)塵(chen)(chen)(chen)干管由(you)(you)(you)固(gu)(gu)定接(jie)口翻(fan)(fan)(fan)(fan)板(ban)(ban)(ban)閥(fa)(fa)(fa)(fa)(fa)(fa)、伸(shen)(shen)(shen)(shen)縮器(qi)、平(ping)衡(heng)翻(fan)(fan)(fan)(fan)板(ban)(ban)(ban)閥(fa)(fa)(fa)(fa)(fa)(fa)、干管端部(bu)消音器(qi)組(zu)成.固(gu)(gu)定翻(fan)(fan)(fan)(fan)板(ban)(ban)(ban)閥(fa)(fa)(fa)(fa)(fa)(fa)由(you)(you)(you)閥(fa)(fa)(fa)(fa)(fa)(fa)板(ban)(ban)(ban)、支臂、管體等部(bu)分組(zu)成.焦(jiao)爐(lu)出焦(jiao)時,攔(lan)(lan)焦(jiao)車(che)(che)的(de)液壓推(tui)(tui)桿(gan)將該(gai)翻(fan)(fan)(fan)(fan)板(ban)(ban)(ban)閥(fa)(fa)(fa)(fa)(fa)(fa)的(de)翻(fan)(fan)(fan)(fan)板(ban)(ban)(ban)推(tui)(tui)開,閥(fa)(fa)(fa)(fa)(fa)(fa)門(men)控制(zhi)桿(gan)旋轉75度(du)使(shi)(shi)(shi)閥(fa)(fa)(fa)(fa)(fa)(fa)門(men)打開,攔(lan)(lan)焦(jiao)車(che)(che)導管的(de)可(ke)伸(shen)(shen)(shen)(shen)縮接(jie)口與(yu)該(gai)翻(fan)(fan)(fan)(fan)板(ban)(ban)(ban)閥(fa)(fa)(fa)(fa)(fa)(fa)端面對(dui)接(jie),使(shi)(shi)(shi)含塵(chen)(chen)(chen)煙氣(qi)由(you)(you)(you)攔(lan)(lan)焦(jiao)車(che)(che)集(ji)塵(chen)(chen)(chen)罩(zhao)進(jin)入(ru)由(you)(you)(you)固(gu)(gu)定翻(fan)(fan)(fan)(fan)板(ban)(ban)(ban)閥(fa)(fa)(fa)(fa)(fa)(fa)組(zu)成的(de)集(ji)塵(chen)(chen)(chen)干管;推(tui)(tui)焦(jiao)完(wan)成后,攔(lan)(lan)焦(jiao)車(che)(che)上的(de)液壓推(tui)(tui)桿(gan)及可(ke)伸(shen)(shen)(shen)(shen)縮接(jie)口退回,該(gai)翻(fan)(fan)(fan)(fan)板(ban)(ban)(ban)閥(fa)(fa)(fa)(fa)(fa)(fa)關閉,完(wan)成一爐(lu)除塵(chen)(chen)(chen)計劃.固(gu)(gu)定翻(fan)(fan)(fan)(fan)板(ban)(ban)(ban)閥(fa)(fa)(fa)(fa)(fa)(fa)處于(yu)高溫狀(zhuang)態又(you)處于(yu)經常開、閉狀(zhuang)態,受熱不(bu)變型,采用U型骨架周邊均布,使(shi)(shi)(shi)閥(fa)(fa)(fa)(fa)(fa)(fa)板(ban)(ban)(ban)長期(qi)使(shi)(shi)(shi)用不(bu)變型,在(zai)密(mi)封(feng)處加金(jin)屬絲石棉密(mi)封(feng)墊,閥(fa)(fa)(fa)(fa)(fa)(fa)門(men)密(mi)封(feng)效果;每組(zu)翻(fan)(fan)(fan)(fan)板(ban)(ban)(ban)閥(fa)(fa)(fa)(fa)(fa)(fa)之(zhi)間(jian)(jian)(jian)、翻(fan)(fan)(fan)(fan)板(ban)(ban)(ban)閥(fa)(fa)(fa)(fa)(fa)(fa)與(yu)直管段之(zhi)間(jian)(jian)(jian)以及平(ping)衡(heng)閥(fa)(fa)(fa)(fa)(fa)(fa)、伸(shen)(shen)(shen)(shen)縮節和端部(bu)消聲器(qi)法蘭之(zhi)間(jian)(jian)(jian)使(shi)(shi)(shi)用金(jin)屬纏繞墊,靜密(mi)封(feng)漏氣(qi)率(lv)低(di)于(yu)0.5%.