爐門框架采用槽(cao)鋼(gang)制作,側(ce)板(ban)和底(di)板(ban)采用Q235鋼(gang)板(ban)焊接(jie),結構牢(lao)固可(ke)靠,不易變(bian)形和翹曲(qu),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)制(zhi)(zhi)系統(tong):主控(kong)系統(tong)控(kong)制(zhi)(zhi)柜(ju)采用國際流行(xing)立式組(zu)合(he)柜(ju)。控(kong)制(zhi)(zhi)柜(ju)外(wai)表(biao)噴涂電(dian)腦色或淺駝色。電(dian)控(kong)面(mian)板上(shang)裝有電(dian)流表(biao)、電(dian)壓表(biao)、溫度控(kong)制(zhi)(zhi)儀(yi)及控(kong)制(zhi)(zhi)開關等。
溫度控(kong)(kong)(kong)制(zhi)(zhi)主(zhu)回路(lu)采(cai)用(yong)(yong)可控(kong)(kong)(kong)硅過(guo)零(ling)調功觸發,可控(kong)(kong)(kong)硅采(cai)用(yong)(yong)風冷形式,設(she)有(you)過(guo)載、過(guo)熱(re)(re)及過(guo)流保護(hu)等功能(neng)(neng)(neng)。溫度控(kong)(kong)(kong)制(zhi)(zhi)儀(yi)表選用(yong)(yong)先進(jin)的上海國龍(long)智能(neng)(neng)(neng)高精(jing)度數顯PID自整定型儀(yi)表,控(kong)(kong)(kong)制(zhi)(zhi)精(jing)度±1℃。該(gai)溫度控(kong)(kong)(kong)制(zhi)(zhi)配有(you)熱(re)(re)電偶修(xiu)正功能(neng)(neng)(neng)、功率(lv)限制(zhi)(zhi)功能(neng)(neng)(neng)及超溫報警(jing)功能(neng)(neng)(neng)。當爐門打開時自動切斷加熱(re)(re)主(zhu)電路(lu),實現聯鎖(suo)保護(hu)。
爐溫記錄采用南通達華記錄儀,對升溫及(ji)保溫時(shi)間(jian)過程(cheng)實(shi)時(shi)打印曲線、記錄溫度(du),同時(shi)對加熱主回路實(shi)現監控(kong)作用,有效地監視整個生產(chan)工藝。