爐門框(kuang)架采用槽鋼(gang)制作,側板(ban)(ban)和底板(ban)(ban)采用Q235鋼(gang)板(ban)(ban)焊接,結構牢固可(ke)靠,不易變形(xing)和翹曲,整體強(qiang)度好(hao)。
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:主(zhu)控(kong)(kong)系統控(kong)(kong)制柜(ju)(ju)采用國際流(liu)行(xing)立式(shi)組合柜(ju)(ju)。控(kong)(kong)制柜(ju)(ju)外表噴涂電(dian)腦色或淺駝色。電(dian)控(kong)(kong)面板(ban)上裝有(you)電(dian)流(liu)表、電(dian)壓表、溫度控(kong)(kong)制儀(yi)及控(kong)(kong)制開關等。
溫(wen)度(du)(du)(du)控制主(zhu)回路(lu)(lu)采(cai)用(yong)可控硅(gui)過(guo)零調功(gong)(gong)觸(chu)發,可控硅(gui)采(cai)用(yong)風冷(leng)形式,設(she)有(you)過(guo)載、過(guo)熱(re)及過(guo)流保護(hu)等功(gong)(gong)能。溫(wen)度(du)(du)(du)控制儀(yi)表選用(yong)先進的上海(hai)國龍智能高精(jing)度(du)(du)(du)數顯PID自整(zheng)定型儀(yi)表,控制精(jing)度(du)(du)(du)±1℃。該溫(wen)度(du)(du)(du)控制配有(you)熱(re)電偶(ou)修正功(gong)(gong)能、功(gong)(gong)率(lv)限制功(gong)(gong)能及超溫(wen)報警功(gong)(gong)能。當爐門打開時自動切斷加熱(re)主(zhu)電路(lu)(lu),實(shi)現(xian)聯(lian)鎖保護(hu)。
爐溫(wen)記(ji)錄采用(yong)(yong)南通(tong)達華(hua)記(ji)錄儀,對(dui)升溫(wen)及(ji)保溫(wen)時(shi)間過(guo)程實時(shi)打印曲線、記(ji)錄溫(wen)度,同時(shi)對(dui)加熱主回路實現(xian)監控作用(yong)(yong),有效地監視整個生產工藝。