爐門框架(jia)采(cai)用(yong)槽鋼(gang)制作,側板和底板采(cai)用(yong)Q235鋼(gang)板焊接(jie),結構(gou)牢固可(ke)靠,不(bu)易變形(xing)和翹(qiao)曲,整體強度(du)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:主控(kong)(kong)系統控(kong)(kong)制(zhi)柜采(cai)用國際流(liu)行立式組(zu)合柜。控(kong)(kong)制(zhi)柜外表(biao)噴(pen)涂電腦色或淺駝(tuo)色。電控(kong)(kong)面(mian)板(ban)上裝有(you)電流(liu)表(biao)、電壓表(biao)、溫度(du)控(kong)(kong)制(zhi)儀及控(kong)(kong)制(zhi)開關等。
溫(wen)度控(kong)制主回(hui)路采用(yong)可(ke)控(kong)硅過零調(diao)功(gong)(gong)觸發(fa),可(ke)控(kong)硅采用(yong)風冷形式,設有過載(zai)、過熱及(ji)過流(liu)保(bao)護等功(gong)(gong)能(neng)(neng)。溫(wen)度控(kong)制儀表選(xuan)用(yong)先(xian)進的(de)上海國龍(long)智能(neng)(neng)高精度數顯PID自整(zheng)定型儀表,控(kong)制精度±1℃。該溫(wen)度控(kong)制配有熱電偶修正功(gong)(gong)能(neng)(neng)、功(gong)(gong)率限制功(gong)(gong)能(neng)(neng)及(ji)超溫(wen)報(bao)警功(gong)(gong)能(neng)(neng)。當爐門打開時(shi)自動切斷加熱主電路,實現聯鎖保(bao)護。
爐溫(wen)記(ji)錄采用(yong)南通達(da)華(hua)記(ji)錄儀,對(dui)升溫(wen)及保溫(wen)時(shi)(shi)間過程實時(shi)(shi)打印(yin)曲(qu)線、記(ji)錄溫(wen)度,同時(shi)(shi)對(dui)加熱主回路實現監控作用(yong),有效地監視整個生產(chan)工藝。