爐門框(kuang)架采用槽鋼制作,側板和底板采用Q235鋼板焊接,結構(gou)牢固可靠,不易變形和翹曲,整(zheng)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)(kong)制系統(tong):主控(kong)(kong)系統(tong)控(kong)(kong)制柜(ju)采(cai)用國際流(liu)行立(li)式組(zu)合(he)柜(ju)。控(kong)(kong)制柜(ju)外表(biao)噴涂電(dian)腦(nao)色或淺駝色。電(dian)控(kong)(kong)面(mian)板(ban)上裝(zhuang)有電(dian)流(liu)表(biao)、電(dian)壓表(biao)、溫(wen)度控(kong)(kong)制儀及控(kong)(kong)制開關(guan)等。
溫(wen)度控(kong)(kong)制主(zhu)回路采用可(ke)控(kong)(kong)硅(gui)過(guo)零調功(gong)(gong)觸發,可(ke)控(kong)(kong)硅(gui)采用風冷(leng)形式,設有過(guo)載、過(guo)熱(re)及(ji)過(guo)流保護等功(gong)(gong)能。溫(wen)度控(kong)(kong)制儀(yi)表(biao)(biao)選用先進的上(shang)海國(guo)龍智(zhi)能高精(jing)度數顯(xian)PID自(zi)整(zheng)定型儀(yi)表(biao)(biao),控(kong)(kong)制精(jing)度±1℃。該溫(wen)度控(kong)(kong)制配(pei)有熱(re)電偶修(xiu)正功(gong)(gong)能、功(gong)(gong)率限制功(gong)(gong)能及(ji)超溫(wen)報警功(gong)(gong)能。當爐門打開時自(zi)動切(qie)斷加熱(re)主(zhu)電路,實(shi)現聯鎖(suo)保護。
爐溫(wen)記(ji)錄采用(yong)南通達華記(ji)錄儀,對升溫(wen)及保溫(wen)時(shi)間過(guo)程實時(shi)打印(yin)曲線、記(ji)錄溫(wen)度,同時(shi)對加熱主回路實現監(jian)(jian)控(kong)作用(yong),有效地監(jian)(jian)視整個(ge)生產工藝。