爐門框架采(cai)用槽鋼制(zhi)作,側板(ban)和底板(ban)采(cai)用Q235鋼板(ban)焊(han)接,結構牢固可靠,不易變形和翹曲,整體強度好(hao)。
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)(zhi)系統(tong):主控(kong)(kong)(kong)(kong)系統(tong)控(kong)(kong)(kong)(kong)制(zhi)(zhi)柜采(cai)用國際流(liu)行(xing)立式組合柜。控(kong)(kong)(kong)(kong)制(zhi)(zhi)柜外表(biao)(biao)噴涂電腦(nao)色(se)(se)或淺駝色(se)(se)。電控(kong)(kong)(kong)(kong)面板上裝有電流(liu)表(biao)(biao)、電壓表(biao)(biao)、溫度(du)控(kong)(kong)(kong)(kong)制(zhi)(zhi)儀及控(kong)(kong)(kong)(kong)制(zhi)(zhi)開(kai)關等。
溫度控(kong)(kong)制(zhi)(zhi)主(zhu)回路采用可(ke)控(kong)(kong)硅(gui)(gui)過零調(diao)功觸發(fa),可(ke)控(kong)(kong)硅(gui)(gui)采用風冷形式,設(she)有過載、過熱(re)及過流保(bao)護等功能。溫度控(kong)(kong)制(zhi)(zhi)儀表選(xuan)用先進的上海(hai)國龍智能高精度數顯PID自整定型儀表,控(kong)(kong)制(zhi)(zhi)精度±1℃。該溫度控(kong)(kong)制(zhi)(zhi)配有熱(re)電(dian)偶修正功能、功率限制(zhi)(zhi)功能及超溫報警功能。當(dang)爐門打開時自動切斷加熱(re)主(zhu)電(dian)路,實現(xian)聯(lian)鎖保(bao)護。
爐溫(wen)記錄采用南通達(da)華記錄儀,對升溫(wen)及保溫(wen)時(shi)間(jian)過(guo)程實(shi)時(shi)打(da)印曲線(xian)、記錄溫(wen)度(du),同時(shi)對加熱(re)主回(hui)路實(shi)現監(jian)控作用,有效地監(jian)視整(zheng)個生產工藝。