爐門(men)框架采(cai)用槽鋼(gang)制(zhi)作,側(ce)板(ban)和底板(ban)采(cai)用Q235鋼(gang)板(ban)焊接,結構牢固可靠,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)(kong)(kong)制(zhi)系(xi)統:主控(kong)(kong)(kong)(kong)系(xi)統控(kong)(kong)(kong)(kong)制(zhi)柜(ju)采用國際流行立式(shi)組合(he)柜(ju)。控(kong)(kong)(kong)(kong)制(zhi)柜(ju)外表(biao)噴涂(tu)電(dian)腦(nao)色(se)或淺駝色(se)。電(dian)控(kong)(kong)(kong)(kong)面板上裝(zhuang)有電(dian)流表(biao)、電(dian)壓表(biao)、溫度控(kong)(kong)(kong)(kong)制(zhi)儀及控(kong)(kong)(kong)(kong)制(zhi)開(kai)關等。
溫(wen)(wen)(wen)度(du)控制(zhi)主(zhu)回路采用(yong)可(ke)控硅過(guo)(guo)零調功(gong)觸(chu)發,可(ke)控硅采用(yong)風冷形式,設(she)有(you)(you)過(guo)(guo)載、過(guo)(guo)熱(re)(re)及(ji)(ji)過(guo)(guo)流保護等功(gong)能(neng)。溫(wen)(wen)(wen)度(du)控制(zhi)儀(yi)(yi)表選用(yong)先進(jin)的上(shang)海國龍智能(neng)高(gao)精度(du)數顯(xian)PID自整定型(xing)儀(yi)(yi)表,控制(zhi)精度(du)±1℃。該溫(wen)(wen)(wen)度(du)控制(zhi)配(pei)有(you)(you)熱(re)(re)電(dian)偶(ou)修正功(gong)能(neng)、功(gong)率限(xian)制(zhi)功(gong)能(neng)及(ji)(ji)超(chao)溫(wen)(wen)(wen)報警功(gong)能(neng)。當爐(lu)門打開(kai)時自動(dong)切(qie)斷加熱(re)(re)主(zhu)電(dian)路,實現聯鎖(suo)保護。
爐溫記(ji)(ji)錄(lu)采用南通(tong)達(da)華記(ji)(ji)錄(lu)儀,對升溫及保溫時(shi)間過程實(shi)(shi)時(shi)打印曲線(xian)、記(ji)(ji)錄(lu)溫度,同時(shi)對加熱主回路實(shi)(shi)現監(jian)控作用,有效地監(jian)視整個生(sheng)產(chan)工藝。