爐門框(kuang)架采(cai)用槽(cao)鋼制作,側板和(he)底板采(cai)用Q235鋼板焊接,結(jie)構牢固可靠,不易(yi)變形和(he)翹曲,整體(ti)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)制系統(tong):主控(kong)系統(tong)控(kong)制柜(ju)采用國際流行(xing)立式組合柜(ju)。控(kong)制柜(ju)外表(biao)噴涂電(dian)腦色或(huo)淺駝色。電(dian)控(kong)面板上裝(zhuang)有電(dian)流表(biao)、電(dian)壓(ya)表(biao)、溫(wen)度控(kong)制儀及控(kong)制開關等。
溫(wen)(wen)度(du)控(kong)(kong)制(zhi)主(zhu)回路采(cai)用(yong)可(ke)控(kong)(kong)硅過(guo)零(ling)調功(gong)(gong)觸發,可(ke)控(kong)(kong)硅采(cai)用(yong)風冷形(xing)式,設有(you)過(guo)載、過(guo)熱(re)(re)及過(guo)流保(bao)護(hu)等功(gong)(gong)能(neng)(neng)。溫(wen)(wen)度(du)控(kong)(kong)制(zhi)儀(yi)表選用(yong)先進的上海國龍智能(neng)(neng)高精度(du)數(shu)顯PID自(zi)整(zheng)定型儀(yi)表,控(kong)(kong)制(zhi)精度(du)±1℃。該溫(wen)(wen)度(du)控(kong)(kong)制(zhi)配有(you)熱(re)(re)電偶修正功(gong)(gong)能(neng)(neng)、功(gong)(gong)率限制(zhi)功(gong)(gong)能(neng)(neng)及超溫(wen)(wen)報警功(gong)(gong)能(neng)(neng)。當爐門(men)打開時自(zi)動切斷加熱(re)(re)主(zhu)電路,實現聯鎖保(bao)護(hu)。
爐溫(wen)記錄采用南通達華(hua)記錄儀(yi),對升溫(wen)及保溫(wen)時間過(guo)程(cheng)實時打印曲線、記錄溫(wen)度,同時對加熱主回(hui)路實現監控作(zuo)用,有(you)效(xiao)地監視整個生產工藝。