爐門框架(jia)采(cai)用槽鋼制作(zuo),側板(ban)和底板(ban)采(cai)用Q235鋼板(ban)焊接,結(jie)構牢固可靠,不易變形和翹(qiao)曲,整體強度好。
爐門升降為電動葫蘆驅動。箱式預熱爐廠家在爐門上有一斷路裝置,該裝置與輪軸連鎖,當爐門打開時即切斷加熱元件電源以保證操作人員安全。爐門上裝有調節式密封機構,有效使爐門密封。在爐頂上有一熱電偶孔,在使用時將熱電偶插入爐膛通過電爐控制柜來控制爐膛工作溫度。
控(kong)制(zhi)系統(tong)(tong):主控(kong)系統(tong)(tong)控(kong)制(zhi)柜采用國際(ji)流行(xing)立式組合柜。控(kong)制(zhi)柜外表(biao)噴涂電(dian)腦色或淺(qian)駝(tuo)色。電(dian)控(kong)面板上裝(zhuang)有電(dian)流表(biao)、電(dian)壓表(biao)、溫度控(kong)制(zhi)儀及控(kong)制(zhi)開關等。
溫度控(kong)(kong)制主回路采(cai)用(yong)可控(kong)(kong)硅(gui)過(guo)(guo)零調功(gong)觸(chu)發,可控(kong)(kong)硅(gui)采(cai)用(yong)風冷形式(shi),設(she)有過(guo)(guo)載、過(guo)(guo)熱(re)及過(guo)(guo)流保護(hu)等功(gong)能(neng)。溫度控(kong)(kong)制儀表(biao)選用(yong)先進的(de)上海(hai)國龍智能(neng)高精度數顯PID自(zi)整定型(xing)儀表(biao),控(kong)(kong)制精度±1℃。該溫度控(kong)(kong)制配有熱(re)電(dian)偶修正功(gong)能(neng)、功(gong)率限制功(gong)能(neng)及超(chao)溫報警功(gong)能(neng)。當爐門打開時(shi)自(zi)動切斷加熱(re)主電(dian)路,實(shi)現聯(lian)鎖保護(hu)。
爐溫(wen)(wen)(wen)記(ji)錄采用(yong)(yong)南通達華記(ji)錄儀,對升溫(wen)(wen)(wen)及保溫(wen)(wen)(wen)時(shi)(shi)間過程實(shi)時(shi)(shi)打印曲線(xian)、記(ji)錄溫(wen)(wen)(wen)度,同時(shi)(shi)對加熱主回路實(shi)現(xian)監控作(zuo)用(yong)(yong),有(you)效(xiao)地監視整個(ge)生產(chan)工藝(yi)。