爐門框架采(cai)用槽(cao)鋼制(zhi)作,側板(ban)和底板(ban)采(cai)用Q235鋼板(ban)焊(han)接,結(jie)構牢固可靠,不易(yi)變形和翹曲(qu),整體強度好(hao)。
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)系(xi)統:主控(kong)系(xi)統控(kong)制(zhi)柜采用國際(ji)流(liu)行立式組(zu)合柜。控(kong)制(zhi)柜外表噴涂電(dian)腦色(se)或淺駝色(se)。電(dian)控(kong)面板上裝有電(dian)流(liu)表、電(dian)壓表、溫度控(kong)制(zhi)儀(yi)及控(kong)制(zhi)開關等。
溫(wen)(wen)(wen)度控制(zhi)(zhi)(zhi)主(zhu)回路采用可控硅(gui)過零(ling)調功(gong)(gong)(gong)觸發(fa),可控硅(gui)采用風冷形(xing)式,設有過載、過熱及(ji)過流保(bao)護等功(gong)(gong)(gong)能(neng)。溫(wen)(wen)(wen)度控制(zhi)(zhi)(zhi)儀(yi)表(biao)選用先進的上海國龍智能(neng)高精(jing)度數顯(xian)PID自整定型儀(yi)表(biao),控制(zhi)(zhi)(zhi)精(jing)度±1℃。該溫(wen)(wen)(wen)度控制(zhi)(zhi)(zhi)配有熱電偶修正(zheng)功(gong)(gong)(gong)能(neng)、功(gong)(gong)(gong)率限制(zhi)(zhi)(zhi)功(gong)(gong)(gong)能(neng)及(ji)超溫(wen)(wen)(wen)報警功(gong)(gong)(gong)能(neng)。當爐門打開時自動切斷加熱主(zhu)電路,實(shi)現聯鎖保(bao)護。
爐溫記錄(lu)采用南(nan)通(tong)達華(hua)記錄(lu)儀,對升溫及保溫時(shi)(shi)間(jian)過(guo)程實(shi)時(shi)(shi)打印(yin)曲(qu)線、記錄(lu)溫度,同時(shi)(shi)對加熱主回路實(shi)現監控作(zuo)用,有(you)效地監視整個(ge)生產工藝。