爐門框架采(cai)用(yong)槽鋼制作,側(ce)板(ban)和(he)底板(ban)采(cai)用(yong)Q235鋼板(ban)焊接,結構牢固可靠,不易變形和(he)翹曲,整體強(qiang)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)制系統:主(zhu)控(kong)(kong)(kong)系統控(kong)(kong)(kong)制柜采用國際流行立式組合(he)柜。控(kong)(kong)(kong)制柜外表(biao)(biao)噴涂(tu)電腦(nao)色或淺(qian)駝色。電控(kong)(kong)(kong)面板上(shang)裝有(you)電流表(biao)(biao)、電壓表(biao)(biao)、溫度控(kong)(kong)(kong)制儀及控(kong)(kong)(kong)制開(kai)關等。
溫(wen)(wen)度(du)控(kong)制主回(hui)路采(cai)用可控(kong)硅過零調(diao)功(gong)(gong)觸發,可控(kong)硅采(cai)用風冷形式(shi),設有過載、過熱(re)及過流保護(hu)等功(gong)(gong)能(neng)。溫(wen)(wen)度(du)控(kong)制儀表選用先進的上海國龍智能(neng)高精度(du)數顯PID自(zi)整定型儀表,控(kong)制精度(du)±1℃。該溫(wen)(wen)度(du)控(kong)制配(pei)有熱(re)電偶修(xiu)正功(gong)(gong)能(neng)、功(gong)(gong)率(lv)限制功(gong)(gong)能(neng)及超溫(wen)(wen)報(bao)警功(gong)(gong)能(neng)。當(dang)爐門(men)打開(kai)時自(zi)動切斷加熱(re)主電路,實現聯(lian)鎖保護(hu)。
爐(lu)溫(wen)記(ji)錄(lu)(lu)采用(yong)南通達華記(ji)錄(lu)(lu)儀,對升溫(wen)及保(bao)溫(wen)時間過(guo)程實(shi)時打印曲線、記(ji)錄(lu)(lu)溫(wen)度(du),同時對加(jia)熱主回路實(shi)現監控作(zuo)用(yong),有效地監視整(zheng)個生產(chan)工(gong)藝。