爐門(men)框架采用(yong)(yong)槽鋼制作(zuo),側(ce)板(ban)和(he)底板(ban)采用(yong)(yong)Q235鋼板(ban)焊接,結構牢固可(ke)靠,不易(yi)變形和(he)翹(qiao)曲(qu),整體強(qiang)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)制(zhi)系(xi)統(tong):主控(kong)系(xi)統(tong)控(kong)制(zhi)柜采用(yong)國際(ji)流行立(li)式組合柜。控(kong)制(zhi)柜外表噴涂電(dian)腦(nao)色或淺(qian)駝色。電(dian)控(kong)面板(ban)上裝有(you)電(dian)流表、電(dian)壓表、溫度控(kong)制(zhi)儀及控(kong)制(zhi)開關等(deng)。
溫(wen)度(du)(du)控(kong)(kong)制主(zhu)回路采用(yong)可(ke)控(kong)(kong)硅過(guo)零(ling)調功(gong)(gong)觸(chu)發(fa),可(ke)控(kong)(kong)硅采用(yong)風(feng)冷形式,設(she)有(you)過(guo)載、過(guo)熱(re)及(ji)過(guo)流保(bao)護等功(gong)(gong)能(neng)(neng)。溫(wen)度(du)(du)控(kong)(kong)制儀(yi)表(biao)選用(yong)先進的上海國龍智能(neng)(neng)高(gao)精度(du)(du)數(shu)顯PID自整定型儀(yi)表(biao),控(kong)(kong)制精度(du)(du)±1℃。該溫(wen)度(du)(du)控(kong)(kong)制配(pei)有(you)熱(re)電偶修正功(gong)(gong)能(neng)(neng)、功(gong)(gong)率限(xian)制功(gong)(gong)能(neng)(neng)及(ji)超溫(wen)報警功(gong)(gong)能(neng)(neng)。當爐門打開時自動切斷加熱(re)主(zhu)電路,實現聯(lian)鎖保(bao)護。
爐溫記(ji)錄采(cai)用南通達華記(ji)錄儀,對升溫及保(bao)溫時間(jian)過程實時打印(yin)曲(qu)線、記(ji)錄溫度,同時對加熱(re)主回路實現監控作(zuo)用,有效地監視整個生產工(gong)藝。