爐(lu)門(men)框架采(cai)用槽鋼制(zhi)作,側板和(he)底板采(cai)用Q235鋼板焊接,結構牢固可靠,不易變(bian)形和(he)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。
控制系(xi)統:主控系(xi)統控制柜采用國際流行立式組合柜。控制柜外表噴涂電(dian)腦色(se)(se)或淺駝色(se)(se)。電(dian)控面板上(shang)裝有(you)電(dian)流表、電(dian)壓表、溫度控制儀及控制開關等。
溫(wen)度(du)(du)控(kong)(kong)制(zhi)主回路(lu)采(cai)用(yong)可(ke)控(kong)(kong)硅(gui)過零調功(gong)(gong)觸發,可(ke)控(kong)(kong)硅(gui)采(cai)用(yong)風冷形(xing)式(shi),設有過載、過熱及過流保護等功(gong)(gong)能(neng)。溫(wen)度(du)(du)控(kong)(kong)制(zhi)儀表選(xuan)用(yong)先進的上海國龍智能(neng)高精(jing)度(du)(du)數顯PID自(zi)整定(ding)型儀表,控(kong)(kong)制(zhi)精(jing)度(du)(du)±1℃。該(gai)溫(wen)度(du)(du)控(kong)(kong)制(zhi)配(pei)有熱電偶(ou)修(xiu)正功(gong)(gong)能(neng)、功(gong)(gong)率限制(zhi)功(gong)(gong)能(neng)及超溫(wen)報(bao)警功(gong)(gong)能(neng)。當(dang)爐門(men)打開時自(zi)動切斷(duan)加熱主電路(lu),實現聯鎖保護。
爐溫(wen)(wen)記錄(lu)(lu)采用(yong)(yong)南(nan)通達華(hua)記錄(lu)(lu)儀,對升溫(wen)(wen)及保(bao)溫(wen)(wen)時(shi)(shi)間過程(cheng)實時(shi)(shi)打印曲線、記錄(lu)(lu)溫(wen)(wen)度,同時(shi)(shi)對加熱主回路實現監(jian)控(kong)作用(yong)(yong),有效地監(jian)視整個生產工藝。