爐(lu)門框架采(cai)用(yong)(yong)槽鋼制作,側板(ban)和底板(ban)采(cai)用(yong)(yong)Q235鋼板(ban)焊接,結(jie)構牢固可靠,不易變形(xing)和翹曲(qu),整體強度(du)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(tong):主控(kong)系統(tong)控(kong)制(zhi)(zhi)柜采用(yong)國際流(liu)行立式組合柜。控(kong)制(zhi)(zhi)柜外表(biao)(biao)噴涂電腦(nao)色或淺(qian)駝色。電控(kong)面板上裝有(you)電流(liu)表(biao)(biao)、電壓表(biao)(biao)、溫度控(kong)制(zhi)(zhi)儀(yi)及控(kong)制(zhi)(zhi)開關等(deng)。
溫度控(kong)制(zhi)主回路采用(yong)可控(kong)硅過(guo)零調功(gong)(gong)觸(chu)發,可控(kong)硅采用(yong)風冷形式,設有(you)(you)過(guo)載、過(guo)熱及(ji)過(guo)流(liu)保護等功(gong)(gong)能。溫度控(kong)制(zhi)儀(yi)表選用(yong)先進的上(shang)海(hai)國龍智能高精(jing)度數(shu)顯(xian)PID自整定型儀(yi)表,控(kong)制(zhi)精(jing)度±1℃。該溫度控(kong)制(zhi)配(pei)有(you)(you)熱電偶修正功(gong)(gong)能、功(gong)(gong)率(lv)限制(zhi)功(gong)(gong)能及(ji)超(chao)溫報(bao)警功(gong)(gong)能。當爐(lu)門(men)打開時自動切斷加熱主電路,實現聯(lian)鎖保護。
爐溫(wen)記(ji)錄(lu)采用(yong)(yong)南通達華(hua)記(ji)錄(lu)儀,對升溫(wen)及保溫(wen)時(shi)間過程實(shi)時(shi)打印曲線、記(ji)錄(lu)溫(wen)度,同時(shi)對加熱主(zhu)回路實(shi)現監控作(zuo)用(yong)(yong),有效(xiao)地監視整(zheng)個生產工(gong)藝。