爐門框(kuang)架采用槽鋼(gang)制作,側板和底(di)板采用Q235鋼(gang)板焊接,結構牢固可(ke)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。
控制(zhi)系統(tong)(tong):主控系統(tong)(tong)控制(zhi)柜采(cai)用(yong)國(guo)際流行(xing)立式(shi)組合柜。控制(zhi)柜外表噴(pen)涂電(dian)(dian)腦(nao)色或淺駝色。電(dian)(dian)控面(mian)板上裝有電(dian)(dian)流表、電(dian)(dian)壓(ya)表、溫度控制(zhi)儀(yi)及控制(zhi)開(kai)關(guan)等。
溫(wen)度(du)(du)(du)控(kong)(kong)制(zhi)(zhi)主回路采(cai)用可控(kong)(kong)硅過(guo)(guo)零調功(gong)觸發(fa),可控(kong)(kong)硅采(cai)用風冷形(xing)式,設有(you)過(guo)(guo)載、過(guo)(guo)熱及過(guo)(guo)流保護等功(gong)能(neng)(neng)。溫(wen)度(du)(du)(du)控(kong)(kong)制(zhi)(zhi)儀(yi)表選(xuan)用先進的(de)上海(hai)國龍智能(neng)(neng)高精度(du)(du)(du)數顯(xian)PID自整定型儀(yi)表,控(kong)(kong)制(zhi)(zhi)精度(du)(du)(du)±1℃。該溫(wen)度(du)(du)(du)控(kong)(kong)制(zhi)(zhi)配(pei)有(you)熱電(dian)偶修正功(gong)能(neng)(neng)、功(gong)率(lv)限制(zhi)(zhi)功(gong)能(neng)(neng)及超溫(wen)報警功(gong)能(neng)(neng)。當爐門打開時自動(dong)切斷加熱主電(dian)路,實現聯鎖保護。
爐溫記錄(lu)采用(yong)南通(tong)達華記錄(lu)儀,對升溫及保溫時間(jian)過(guo)程實時打印曲線、記錄(lu)溫度,同(tong)時對加熱主回路實現監控作(zuo)用(yong),有效地監視整個生產(chan)工藝。