爐門框(kuang)架采用槽鋼制作,側板和底(di)板采用Q235鋼板焊(han)接,結構牢固(gu)可靠,不易變形和翹曲(qu),整體(ti)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)系統:主控(kong)系統控(kong)制(zhi)柜(ju)采(cai)用國際流(liu)行立式組合(he)柜(ju)。控(kong)制(zhi)柜(ju)外表(biao)噴涂電(dian)(dian)(dian)腦色或淺駝色。電(dian)(dian)(dian)控(kong)面板上(shang)裝有電(dian)(dian)(dian)流(liu)表(biao)、電(dian)(dian)(dian)壓表(biao)、溫度控(kong)制(zhi)儀(yi)及控(kong)制(zhi)開關等。
溫(wen)(wen)度(du)(du)控(kong)(kong)(kong)制(zhi)(zhi)主回路(lu)采用(yong)可控(kong)(kong)(kong)硅(gui)(gui)過(guo)零(ling)調功(gong)觸(chu)發,可控(kong)(kong)(kong)硅(gui)(gui)采用(yong)風冷形式(shi),設有過(guo)載、過(guo)熱及過(guo)流保護等功(gong)能(neng)(neng)。溫(wen)(wen)度(du)(du)控(kong)(kong)(kong)制(zhi)(zhi)儀表選(xuan)用(yong)先(xian)進(jin)的(de)上海國龍智能(neng)(neng)高精(jing)度(du)(du)數顯PID自整定型儀表,控(kong)(kong)(kong)制(zhi)(zhi)精(jing)度(du)(du)±1℃。該(gai)溫(wen)(wen)度(du)(du)控(kong)(kong)(kong)制(zhi)(zhi)配(pei)有熱電偶修正(zheng)功(gong)能(neng)(neng)、功(gong)率限制(zhi)(zhi)功(gong)能(neng)(neng)及超溫(wen)(wen)報警功(gong)能(neng)(neng)。當爐門打開時自動(dong)切(qie)斷加熱主電路(lu),實現聯鎖保護。
爐(lu)溫(wen)記錄(lu)采用南通達(da)華(hua)記錄(lu)儀,對(dui)升溫(wen)及保溫(wen)時(shi)間過程(cheng)實時(shi)打印曲線、記錄(lu)溫(wen)度,同時(shi)對(dui)加(jia)熱主回(hui)路實現監控作用,有效地監視整個生產工藝(yi)。