爐門(men)框(kuang)架采用(yong)(yong)槽鋼制作,側板和(he)底(di)板采用(yong)(yong)Q235鋼板焊接,結構牢固可靠,不易變形(xing)和(he)翹(qiao)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)(zhi)系統:主控(kong)(kong)系統控(kong)(kong)制(zhi)(zhi)柜采用(yong)國際流(liu)行(xing)立式(shi)組合(he)柜。控(kong)(kong)制(zhi)(zhi)柜外(wai)表噴涂電腦色或淺駝色。電控(kong)(kong)面板上裝有(you)電流(liu)表、電壓表、溫度(du)控(kong)(kong)制(zhi)(zhi)儀及控(kong)(kong)制(zhi)(zhi)開(kai)關(guan)等(deng)。
溫度(du)(du)控(kong)制(zhi)(zhi)主回路采用(yong)(yong)可控(kong)硅(gui)過(guo)(guo)零調功(gong)觸發,可控(kong)硅(gui)采用(yong)(yong)風冷形式,設有過(guo)(guo)載、過(guo)(guo)熱及過(guo)(guo)流保護等(deng)功(gong)能。溫度(du)(du)控(kong)制(zhi)(zhi)儀(yi)表(biao)選用(yong)(yong)先進的(de)上海國龍智能高精(jing)度(du)(du)數顯PID自(zi)整定型儀(yi)表(biao),控(kong)制(zhi)(zhi)精(jing)度(du)(du)±1℃。該溫度(du)(du)控(kong)制(zhi)(zhi)配有熱電偶修正(zheng)功(gong)能、功(gong)率(lv)限(xian)制(zhi)(zhi)功(gong)能及超(chao)溫報(bao)警功(gong)能。當爐門打(da)開時自(zi)動切斷加熱主電路,實(shi)現聯鎖(suo)保護。
爐(lu)溫(wen)記(ji)錄(lu)采用(yong)南通(tong)達華記(ji)錄(lu)儀(yi),對升溫(wen)及保溫(wen)時(shi)(shi)間過程實時(shi)(shi)打印曲(qu)線(xian)、記(ji)錄(lu)溫(wen)度,同時(shi)(shi)對加(jia)熱主回路實現監(jian)控作用(yong),有(you)效地監(jian)視整個生產工藝(yi)。