爐門框架采(cai)用(yong)槽鋼制作,側(ce)板和底板采(cai)用(yong)Q235鋼板焊接,結構牢固(gu)可(ke)靠,不易變形和翹曲,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)(zhi)系統:主(zhu)控(kong)系統控(kong)制(zhi)(zhi)柜采用國際流行(xing)立(li)式組合柜。控(kong)制(zhi)(zhi)柜外表(biao)噴涂電腦(nao)色(se)或淺駝色(se)。電控(kong)面(mian)板(ban)上裝(zhuang)有(you)電流表(biao)、電壓表(biao)、溫度控(kong)制(zhi)(zhi)儀及控(kong)制(zhi)(zhi)開(kai)關等。
溫(wen)(wen)度(du)(du)(du)控(kong)(kong)制主(zhu)回(hui)路采(cai)用可(ke)控(kong)(kong)硅過(guo)零調功(gong)(gong)觸(chu)發(fa),可(ke)控(kong)(kong)硅采(cai)用風冷形(xing)式(shi),設有過(guo)載、過(guo)熱及過(guo)流保(bao)護(hu)等功(gong)(gong)能(neng)。溫(wen)(wen)度(du)(du)(du)控(kong)(kong)制儀(yi)表選用先進的上海國龍(long)智能(neng)高精度(du)(du)(du)數(shu)顯PID自整定型儀(yi)表,控(kong)(kong)制精度(du)(du)(du)±1℃。該溫(wen)(wen)度(du)(du)(du)控(kong)(kong)制配有熱電(dian)偶(ou)修正功(gong)(gong)能(neng)、功(gong)(gong)率(lv)限制功(gong)(gong)能(neng)及超(chao)溫(wen)(wen)報警功(gong)(gong)能(neng)。當爐門打開時自動(dong)切斷加熱主(zhu)電(dian)路,實現聯鎖(suo)保(bao)護(hu)。
爐溫(wen)記(ji)(ji)錄采(cai)用南通(tong)達華記(ji)(ji)錄儀(yi),對升溫(wen)及保溫(wen)時間過程實時打(da)印曲線、記(ji)(ji)錄溫(wen)度,同時對加熱主回路(lu)實現(xian)監控作用,有效(xiao)地監視整個生產(chan)工藝(yi)。