爐門框架采用(yong)槽鋼(gang)制作(zuo),側板和(he)底板采用(yong)Q235鋼(gang)板焊(han)接(jie),結構(gou)牢固可靠(kao),不(bu)易變形和(he)翹曲,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)(kong)制(zhi)系統:主控(kong)(kong)系統控(kong)(kong)制(zhi)柜(ju)采用(yong)國際(ji)流行立(li)式組合柜(ju)。控(kong)(kong)制(zhi)柜(ju)外(wai)表噴(pen)涂電腦色(se)或淺駝色(se)。電控(kong)(kong)面板上裝有(you)電流表、電壓(ya)表、溫度控(kong)(kong)制(zhi)儀及控(kong)(kong)制(zhi)開關(guan)等。
溫度(du)控(kong)(kong)制主回路(lu)采用(yong)可控(kong)(kong)硅過(guo)零調功(gong)(gong)觸發,可控(kong)(kong)硅采用(yong)風冷形式,設(she)有過(guo)載、過(guo)熱及(ji)過(guo)流保護(hu)等功(gong)(gong)能(neng)。溫度(du)控(kong)(kong)制儀(yi)表(biao)選(xuan)用(yong)先進的上(shang)海(hai)國龍智(zhi)能(neng)高精度(du)數(shu)顯PID自(zi)整定型儀(yi)表(biao),控(kong)(kong)制精度(du)±1℃。該溫度(du)控(kong)(kong)制配有熱電偶(ou)修(xiu)正功(gong)(gong)能(neng)、功(gong)(gong)率限制功(gong)(gong)能(neng)及(ji)超溫報警功(gong)(gong)能(neng)。當爐門打開時自(zi)動切斷加熱主電路(lu),實現聯鎖保護(hu)。
爐溫(wen)(wen)記錄(lu)采(cai)用南通達華記錄(lu)儀,對升溫(wen)(wen)及(ji)保溫(wen)(wen)時間過程實時打印曲線、記錄(lu)溫(wen)(wen)度,同(tong)時對加(jia)熱主回路實現監控作用,有效地(di)監視整個生(sheng)產工藝。