爐門框架采用(yong)槽鋼(gang)制作,側板(ban)和底板(ban)采用(yong)Q235鋼(gang)板(ban)焊接,結構(gou)牢固(gu)可靠(kao),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)制系(xi)統:主控(kong)系(xi)統控(kong)制柜采(cai)用國(guo)際流(liu)行立式組合柜。控(kong)制柜外表噴涂電腦色或淺駝色。電控(kong)面板上裝(zhuang)有(you)電流(liu)表、電壓表、溫(wen)度控(kong)制儀及(ji)控(kong)制開(kai)關等。
溫度(du)(du)控(kong)(kong)制(zhi)主(zhu)回路采用(yong)可控(kong)(kong)硅過(guo)零調(diao)功(gong)觸發(fa),可控(kong)(kong)硅采用(yong)風冷形式,設有過(guo)載(zai)、過(guo)熱(re)及(ji)過(guo)流保護等功(gong)能(neng)(neng)。溫度(du)(du)控(kong)(kong)制(zhi)儀(yi)表(biao)(biao)選(xuan)用(yong)先進的上海國龍智(zhi)能(neng)(neng)高精度(du)(du)數顯PID自(zi)整定(ding)型(xing)儀(yi)表(biao)(biao),控(kong)(kong)制(zhi)精度(du)(du)±1℃。該溫度(du)(du)控(kong)(kong)制(zhi)配有熱(re)電偶修正功(gong)能(neng)(neng)、功(gong)率(lv)限(xian)制(zhi)功(gong)能(neng)(neng)及(ji)超溫報警功(gong)能(neng)(neng)。當爐門打(da)開時自(zi)動切斷加(jia)熱(re)主(zhu)電路,實(shi)現(xian)聯鎖保護。
爐(lu)溫記錄(lu)采用(yong)南(nan)通達華記錄(lu)儀,對升溫及保溫時(shi)間過程實(shi)(shi)時(shi)打印曲線、記錄(lu)溫度,同時(shi)對加熱主回路實(shi)(shi)現監(jian)(jian)控作用(yong),有效地監(jian)(jian)視整(zheng)個生(sheng)產工藝。