爐門框(kuang)架采用槽(cao)鋼制作,側(ce)板(ban)和底板(ban)采用Q235鋼板(ban)焊接,結構牢固(gu)可靠,不(bu)易變(bian)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。
控制(zhi)(zhi)(zhi)系統:主(zhu)控系統控制(zhi)(zhi)(zhi)柜(ju)(ju)采用(yong)國(guo)際流行立式組(zu)合(he)柜(ju)(ju)。控制(zhi)(zhi)(zhi)柜(ju)(ju)外表(biao)噴涂電腦色或淺駝色。電控面板上裝有電流表(biao)、電壓表(biao)、溫度(du)控制(zhi)(zhi)(zhi)儀(yi)及(ji)控制(zhi)(zhi)(zhi)開關等(deng)。
溫(wen)度(du)控(kong)制(zhi)主回路采用可(ke)控(kong)硅過(guo)零調功(gong)(gong)(gong)觸發,可(ke)控(kong)硅采用風冷形式,設(she)有過(guo)載、過(guo)熱及(ji)過(guo)流保(bao)護等(deng)功(gong)(gong)(gong)能(neng)。溫(wen)度(du)控(kong)制(zhi)儀表選用先進的上海國龍智能(neng)高精度(du)數(shu)顯PID自(zi)整定型儀表,控(kong)制(zhi)精度(du)±1℃。該溫(wen)度(du)控(kong)制(zhi)配有熱電(dian)偶修正功(gong)(gong)(gong)能(neng)、功(gong)(gong)(gong)率限制(zhi)功(gong)(gong)(gong)能(neng)及(ji)超溫(wen)報警功(gong)(gong)(gong)能(neng)。當爐門打開時自(zi)動(dong)切斷加熱主電(dian)路,實(shi)現聯鎖保(bao)護。
爐溫(wen)記(ji)(ji)錄(lu)采用南通(tong)達(da)華記(ji)(ji)錄(lu)儀,對升溫(wen)及保溫(wen)時間過程實時打(da)印曲線、記(ji)(ji)錄(lu)溫(wen)度(du),同(tong)時對加(jia)熱主回(hui)路(lu)實現(xian)監控作用,有效地監視整個生(sheng)產工(gong)藝。