爐(lu)門(men)框架采用槽鋼制作,側板(ban)和底板(ban)采用Q235鋼板(ban)焊接,結(jie)構牢固(gu)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)(kong)(kong)制(zhi)(zhi)(zhi)系統:主控(kong)(kong)(kong)系統控(kong)(kong)(kong)制(zhi)(zhi)(zhi)柜(ju)采用國際流行立式(shi)組(zu)合柜(ju)。控(kong)(kong)(kong)制(zhi)(zhi)(zhi)柜(ju)外(wai)表(biao)噴涂電(dian)腦色或淺(qian)駝色。電(dian)控(kong)(kong)(kong)面板(ban)上裝有(you)電(dian)流表(biao)、電(dian)壓(ya)表(biao)、溫(wen)度控(kong)(kong)(kong)制(zhi)(zhi)(zhi)儀及控(kong)(kong)(kong)制(zhi)(zhi)(zhi)開關(guan)等(deng)。
溫度控(kong)(kong)(kong)制(zhi)(zhi)主回路采用可控(kong)(kong)(kong)硅(gui)過(guo)(guo)(guo)零(ling)調功觸發,可控(kong)(kong)(kong)硅(gui)采用風冷形式(shi),設有過(guo)(guo)(guo)載(zai)、過(guo)(guo)(guo)熱(re)及(ji)過(guo)(guo)(guo)流(liu)保護(hu)等功能(neng)。溫度控(kong)(kong)(kong)制(zhi)(zhi)儀(yi)表(biao)選用先進的(de)上海國(guo)龍智(zhi)能(neng)高(gao)精度數顯PID自整定(ding)型儀(yi)表(biao),控(kong)(kong)(kong)制(zhi)(zhi)精度±1℃。該溫度控(kong)(kong)(kong)制(zhi)(zhi)配(pei)有熱(re)電(dian)偶修正(zheng)功能(neng)、功率限制(zhi)(zhi)功能(neng)及(ji)超(chao)溫報警功能(neng)。當爐門打(da)開(kai)時自動切斷(duan)加熱(re)主電(dian)路,實現(xian)聯鎖(suo)保護(hu)。
爐溫記(ji)(ji)錄(lu)采用南通達華記(ji)(ji)錄(lu)儀(yi),對升溫及(ji)保溫時間過程實(shi)時打印曲(qu)線、記(ji)(ji)錄(lu)溫度(du),同時對加熱主回路實(shi)現監控作用,有(you)效(xiao)地(di)監視整個生產工藝。