爐門(men)框架(jia)采用(yong)槽鋼(gang)制作,側板和(he)底(di)板采用(yong)Q235鋼(gang)板焊接,結構牢固可靠,不易(yi)變形和(he)翹曲(qu),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(kong)(kong)制(zhi)(zhi)系(xi)統:主控(kong)(kong)系(xi)統控(kong)(kong)制(zhi)(zhi)柜采用國際流行立(li)式(shi)組合柜。控(kong)(kong)制(zhi)(zhi)柜外表噴涂電腦色或淺駝色。電控(kong)(kong)面板上裝有電流表、電壓表、溫度控(kong)(kong)制(zhi)(zhi)儀及控(kong)(kong)制(zhi)(zhi)開關(guan)等。
溫(wen)度(du)控(kong)(kong)制(zhi)主回路采用(yong)可(ke)控(kong)(kong)硅過(guo)零調(diao)功(gong)觸發,可(ke)控(kong)(kong)硅采用(yong)風冷形(xing)式,設(she)有過(guo)載(zai)、過(guo)熱及過(guo)流保護等功(gong)能(neng)(neng)。溫(wen)度(du)控(kong)(kong)制(zhi)儀(yi)表選用(yong)先(xian)進的上海國龍智能(neng)(neng)高精度(du)數顯PID自(zi)整定型(xing)儀(yi)表,控(kong)(kong)制(zhi)精度(du)±1℃。該溫(wen)度(du)控(kong)(kong)制(zhi)配(pei)有熱電(dian)偶修正功(gong)能(neng)(neng)、功(gong)率限制(zhi)功(gong)能(neng)(neng)及超溫(wen)報警功(gong)能(neng)(neng)。當爐門打開時自(zi)動切斷加熱主電(dian)路,實現聯鎖保護。
爐(lu)溫(wen)(wen)記(ji)錄采用(yong)南(nan)通達(da)華記(ji)錄儀,對(dui)升溫(wen)(wen)及保(bao)溫(wen)(wen)時間過(guo)程實時打印曲線、記(ji)錄溫(wen)(wen)度,同時對(dui)加(jia)熱(re)主回路實現(xian)監控作用(yong),有(you)效地監視整(zheng)個生(sheng)產工藝。