爐門(men)框架采用(yong)槽鋼制作,側板(ban)和底板(ban)采用(yong)Q235鋼板(ban)焊接,結構(gou)牢固(gu)可靠(kao),不易變形和翹曲,整體(ti)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(zhi)系(xi)統:主控系(xi)統控制(zhi)柜采用(yong)國(guo)際流行立式(shi)組合柜。控制(zhi)柜外表(biao)噴涂電腦色或淺駝(tuo)色。電控面(mian)板上裝(zhuang)有電流表(biao)、電壓表(biao)、溫(wen)度(du)控制(zhi)儀及控制(zhi)開(kai)關等。
溫(wen)度控(kong)(kong)(kong)制(zhi)(zhi)主(zhu)(zhu)回路采(cai)用(yong)可控(kong)(kong)(kong)硅(gui)過(guo)(guo)零調(diao)功(gong)觸發(fa),可控(kong)(kong)(kong)硅(gui)采(cai)用(yong)風冷形式,設有(you)(you)過(guo)(guo)載、過(guo)(guo)熱及(ji)過(guo)(guo)流保(bao)護等功(gong)能(neng)(neng)。溫(wen)度控(kong)(kong)(kong)制(zhi)(zhi)儀表選用(yong)先進的(de)上海國(guo)龍智(zhi)能(neng)(neng)高精度數(shu)顯PID自(zi)整定(ding)型儀表,控(kong)(kong)(kong)制(zhi)(zhi)精度±1℃。該溫(wen)度控(kong)(kong)(kong)制(zhi)(zhi)配有(you)(you)熱電偶修正功(gong)能(neng)(neng)、功(gong)率限制(zhi)(zhi)功(gong)能(neng)(neng)及(ji)超溫(wen)報(bao)警功(gong)能(neng)(neng)。當爐門打開時自(zi)動切斷加(jia)熱主(zhu)(zhu)電路,實現聯鎖保(bao)護。
爐溫(wen)(wen)記(ji)錄(lu)采用(yong)南通達(da)華記(ji)錄(lu)儀,對升溫(wen)(wen)及保(bao)溫(wen)(wen)時間過程實(shi)時打印曲線、記(ji)錄(lu)溫(wen)(wen)度,同時對加熱主回路實(shi)現監控作(zuo)用(yong),有效地監視(shi)整個生產工藝。