爐門(men)框架采(cai)用(yong)(yong)槽鋼制作,側板和底板采(cai)用(yong)(yong)Q235鋼板焊接,結構牢固可(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)(kong)制(zhi)系(xi)統:主控(kong)(kong)系(xi)統控(kong)(kong)制(zhi)柜(ju)采用國際(ji)流(liu)行立式組合柜(ju)。控(kong)(kong)制(zhi)柜(ju)外表噴涂電腦色(se)或淺駝色(se)。電控(kong)(kong)面板(ban)上裝(zhuang)有電流(liu)表、電壓表、溫度控(kong)(kong)制(zhi)儀及控(kong)(kong)制(zhi)開關(guan)等。
溫(wen)度控(kong)制(zhi)主回(hui)路(lu)采(cai)用(yong)(yong)可控(kong)硅過零調(diao)功(gong)(gong)觸發,可控(kong)硅采(cai)用(yong)(yong)風(feng)冷形(xing)式,設有過載、過熱及過流保護等(deng)功(gong)(gong)能(neng)。溫(wen)度控(kong)制(zhi)儀表選用(yong)(yong)先進(jin)的上海國龍智能(neng)高精度數顯(xian)PID自整(zheng)定型儀表,控(kong)制(zhi)精度±1℃。該溫(wen)度控(kong)制(zhi)配有熱電(dian)偶(ou)修正功(gong)(gong)能(neng)、功(gong)(gong)率限(xian)制(zhi)功(gong)(gong)能(neng)及超溫(wen)報警功(gong)(gong)能(neng)。當爐門打開時自動(dong)切斷加熱主電(dian)路(lu),實現聯鎖保護。
爐溫(wen)記(ji)錄采用南通達(da)華(hua)記(ji)錄儀,對升溫(wen)及(ji)保溫(wen)時間過程實(shi)時打(da)印曲線、記(ji)錄溫(wen)度,同時對加熱主回路實(shi)現(xian)監控作用,有效(xiao)地監視整個生產工藝。