爐(lu)門框架采用(yong)槽鋼(gang)制作,側板和底(di)板采用(yong)Q235鋼(gang)板焊接(jie),結(jie)構牢固可(ke)靠(kao),不(bu)易變形(xing)和翹(qiao)曲,整體強度(du)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)(xi)統:主控(kong)系(xi)(xi)統控(kong)制(zhi)柜采用國際流行立(li)式組合柜。控(kong)制(zhi)柜外表噴涂電(dian)腦色或淺(qian)駝色。電(dian)控(kong)面板上(shang)裝有電(dian)流表、電(dian)壓表、溫度(du)控(kong)制(zhi)儀及控(kong)制(zhi)開關等。
溫度(du)(du)(du)控(kong)制(zhi)主(zhu)回路(lu)采(cai)用可(ke)控(kong)硅過(guo)(guo)零調功(gong)(gong)觸發,可(ke)控(kong)硅采(cai)用風冷形(xing)式,設有過(guo)(guo)載、過(guo)(guo)熱(re)及過(guo)(guo)流(liu)保護(hu)等功(gong)(gong)能(neng)(neng)。溫度(du)(du)(du)控(kong)制(zhi)儀表選用先進的上(shang)海(hai)國(guo)龍智(zhi)能(neng)(neng)高(gao)精度(du)(du)(du)數顯PID自(zi)整定型(xing)儀表,控(kong)制(zhi)精度(du)(du)(du)±1℃。該溫度(du)(du)(du)控(kong)制(zhi)配有熱(re)電偶修正功(gong)(gong)能(neng)(neng)、功(gong)(gong)率(lv)限制(zhi)功(gong)(gong)能(neng)(neng)及超溫報警功(gong)(gong)能(neng)(neng)。當爐門打(da)開時自(zi)動(dong)切斷加(jia)熱(re)主(zhu)電路(lu),實現聯鎖保護(hu)。
爐溫(wen)記(ji)錄(lu)采(cai)用南通達華記(ji)錄(lu)儀,對(dui)升溫(wen)及(ji)保溫(wen)時間(jian)過程實時打印曲(qu)線、記(ji)錄(lu)溫(wen)度,同(tong)時對(dui)加熱(re)主回路實現(xian)監控(kong)作(zuo)用,有效地監視整個生產工藝。