爐門框架采(cai)用槽鋼制作,側(ce)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)系統(tong):主(zhu)控(kong)(kong)系統(tong)控(kong)(kong)制(zhi)柜(ju)采用(yong)國際流行立式(shi)組合柜(ju)。控(kong)(kong)制(zhi)柜(ju)外表(biao)(biao)噴涂電腦色或淺駝(tuo)色。電控(kong)(kong)面板上(shang)裝有電流表(biao)(biao)、電壓表(biao)(biao)、溫度控(kong)(kong)制(zhi)儀及控(kong)(kong)制(zhi)開(kai)關(guan)等。
溫(wen)度(du)控(kong)(kong)制(zhi)主(zhu)回路(lu)采(cai)用可控(kong)(kong)硅過(guo)零(ling)調功(gong)觸發,可控(kong)(kong)硅采(cai)用風冷(leng)形(xing)式,設有過(guo)載(zai)、過(guo)熱(re)及(ji)過(guo)流(liu)保(bao)護等功(gong)能。溫(wen)度(du)控(kong)(kong)制(zhi)儀表(biao)選用先(xian)進(jin)的上(shang)海國龍智能高精度(du)數顯PID自整定型儀表(biao),控(kong)(kong)制(zhi)精度(du)±1℃。該溫(wen)度(du)控(kong)(kong)制(zhi)配有熱(re)電偶(ou)修正(zheng)功(gong)能、功(gong)率(lv)限制(zhi)功(gong)能及(ji)超(chao)溫(wen)報警(jing)功(gong)能。當爐門打(da)開時(shi)自動切斷加熱(re)主(zhu)電路(lu),實現聯(lian)鎖保(bao)護。
爐溫(wen)記錄(lu)采(cai)用南通(tong)達華記錄(lu)儀,對升溫(wen)及保溫(wen)時(shi)間(jian)過程實時(shi)打印曲線、記錄(lu)溫(wen)度,同(tong)時(shi)對加熱主回路實現監控作用,有效地(di)監視(shi)整個生產工藝。