爐門框架采用(yong)槽鋼制(zhi)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,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)(kong)制(zhi)系(xi)統(tong):主控(kong)(kong)系(xi)統(tong)控(kong)(kong)制(zhi)柜采用(yong)國際(ji)流行立式組(zu)合柜。控(kong)(kong)制(zhi)柜外表噴涂電腦(nao)色(se)或淺駝色(se)。電控(kong)(kong)面板(ban)上(shang)裝有電流表、電壓表、溫度控(kong)(kong)制(zhi)儀及控(kong)(kong)制(zhi)開關等。
溫(wen)(wen)度(du)控(kong)(kong)制(zhi)主回(hui)路采用(yong)可控(kong)(kong)硅過零調功觸發,可控(kong)(kong)硅采用(yong)風冷形(xing)式,設(she)有過載、過熱及過流保(bao)(bao)護等(deng)功能(neng)。溫(wen)(wen)度(du)控(kong)(kong)制(zhi)儀表選用(yong)先進的(de)上(shang)海國龍智能(neng)高精度(du)數顯PID自整定型儀表,控(kong)(kong)制(zhi)精度(du)±1℃。該溫(wen)(wen)度(du)控(kong)(kong)制(zhi)配有熱電(dian)偶修正功能(neng)、功率限(xian)制(zhi)功能(neng)及超溫(wen)(wen)報警功能(neng)。當(dang)爐門打開(kai)時自動切斷加熱主電(dian)路,實現聯(lian)鎖保(bao)(bao)護。
爐溫(wen)記錄采用(yong)南通達(da)華(hua)記錄儀,對升溫(wen)及保(bao)溫(wen)時(shi)間過程實時(shi)打印曲線、記錄溫(wen)度,同時(shi)對加熱主回路實現監控作用(yong),有效地監視整個生(sheng)產工藝(yi)。