yaotouzhaozuoweilianjielengquejihehuizhuanyaodefeibiyaoshebei,yunxingguochengzhong,huizhuanyaoneishuliaoluorushuliaolengqueji,dalianggaowenzhuranfenghuiconglengquejineisongruyaonei,tongshiyaotouranliaoyouranshaoqijinruyaonei,suoyi,yaotouzhaoshiyigegaowenfengliaojiaojichu,qixingzhuangheduanmian、容rong積ji的de大da小xiao,對dui氣qi流liu的de影ying響xiang甚shen大da。近jin年nian來lai,因yin一yi些xie三san次ci風feng管guan不bu再zai從cong熟shu料liao冷leng卻que機ji抽chou出chu,而er是shi直zhi接jie從cong窯yao頭tou罩zhao接jie出chu,助zhu燃ran空kong氣qi通tong過guo量liang有you顯xian著zhu增zeng加jia,因yin此ci窯yao頭tou罩zhao結jie構gou的de合he理li性xing尤you為wei重zhong要yao。
窯頭罩在回轉窯設計過程中需要考慮的因素有:
1、需(xu)根(gen)據(ju)通(tong)過(guo)的(de)助(zhu)燃(ran)空(kong)氣(qi)量(liang)和(he)溫(wen)度(du)大(da)小(xiao),有(you)足(zu)夠(gou)的(de)斷(duan)麵(mian)和(he)容(rong)積(ji),來(lai)降(jiang)低(di)氣(qi)流(liu)中(zhong)揚(yang)塵(chen)量(liang),以(yi)便(bian)於(yu)回(hui)轉(zhuan)窯(yao)操(cao)作(zuo)者(zhe)對(dui)窯(yao)內(nei)狀(zhuang)況(kuang)的(de)掌(zhang)控(kong),並(bing)對(dui)係(xi)統(tong)運(yun)轉(zhuan)情(qing)況(kuang)作(zuo)出(chu)準(zhun)確(que)判(pan)斷(duan)。
2、根gen據ju三san次ci風feng抽chou取qu位wei置zhi,是shi其qi內nei部bu形xing狀zhuang合he理li,減jian少shao三san次ci風feng抽chou取qu過guo程cheng對dui窯yao用yong二er次ci風feng和he窯yao內nei燃ran燒shao火huo焰yan的de幹gan擾rao,以yi確que保bao回hui轉zhuan窯yao內nei的de氧yang化hua氣qi氛fen和he燒shao成cheng帶dai溫wen度du。
3、合(he)理(li)的(de)結(jie)構(gou),因(yin)窯(yao)頭(tou)罩(zhao)上(shang)設(she)有(you)對(dui)拉(la)式(shi)檢(jian)修(xiu)門(men),其(qi)內(nei)襯(chen)耐(nai)火(huo)保(bao)溫(wen)材(cai)料(liao),重(zhong)量(liang)較(jiao)大(da),生(sheng)產(chan)時(shi)內(nei)部(bu)溫(wen)度(du)高(gao),易(yi)產(chan)生(sheng)熱(re)變(bian)形(xing)。因(yin)此(ci)必(bi)須(xu)考(kao)慮(lv)其(qi)結(jie)構(gou)具(ju)有(you)合(he)理(li)剛(gang)度(du),並(bing)在(zai)窯(yao)頭(tou)平(ping)台(tai)上(shang)考(kao)慮(lv)到(dao)合(he)適(shi)的(de)支(zhi)撐(cheng)位(wei)置(zhi)和(he)形(xing)式(shi)。

較為典型的窯頭罩外形圖如上圖所示,三次風管自其上接出。