Refractory Castables For Cement Rotary Kiln

Refractory Castables For Cement Rotary Kiln

1. Chitsulo CHIKWANGWANI analimbitsa refractory castables mu uvuni simenti
Zitsulo zolimbitsa zitsulo zazitsulo zimatulutsa zitsulo zosapanga dzimbiri zosagwira kutentha m'zinthuzo, kuti zinthuzo zikhale ndi mphamvu zambiri komanso kukana kugwedezeka kwa kutentha, potero zimawonjezera kukana komanso moyo wautumiki wa zinthuzo.Zinthuzi zimagwiritsidwa ntchito kwambiri pazigawo zomwe zimatha kutentha kwambiri, monga pakamwa pamoto, pakamwa pakamwa, pier yosamva kuvala komanso chiyanjo cha boiler yamagetsi.

2. Otsika simenti refractory castables ng'anjo simenti
Otsika simenti refractory castables makamaka monga mkulu-alumina, mullite ndi corundum refractory castables.Mndandanda wazinthuzi uli ndi mphamvu zamphamvu kwambiri, zotsutsana ndi zowonongeka, kukana kuvala ndi ntchito zabwino kwambiri.Panthawi imodzimodziyo, zinthuzo zikhoza kupangidwa kuti zikhale zowotchera mwamsanga kuphulika-kuphulika molingana ndi zomwe wogwiritsa ntchito akufuna nthawi yophika.

3. Zotayira zamphamvu za alkali zosagwira ntchito mu uvuni wa simenti
Zida zamphamvu zolimbana ndi alkali zimatha kukana kukokoloka ndi mpweya wa alkaline ndi slag, ndipo zimakhala ndi moyo wautali wautumiki.Izi makamaka ntchito zitseko ng'anjo zitseko, ng'anjo kuwonongeka, machitidwe preheater, kasamalidwe kachitidwe, etc. ndi zina mafakitale ng'anjo linings.

Njira yomangira ya aluminiyamu yotsika simenti yoponyedwa pazitsulo zozungulira
Kumanga kwa aluminiyamu ya simenti yotsika kwambiri yopangira ng'anjo yozungulira kumafuna chidwi chapadera panjira zisanu izi:

1. Kutsimikiza kwa zowonjezera zowonjezera
Kutengera zomwe zidachitika kale pogwiritsa ntchito zida zapamwamba za aluminiyamu zotsika simenti, zolumikizira zowonjezera ndizofunikira kwambiri zomwe zimakhudza moyo wautumiki wa zomangira zozungulira zamoto.Malumikizidwe okulirapo pakutsanuliridwa kwa ng'anjo yozungulira amatsimikiziridwa motere:

(1) Zolumikizana zozungulira: zigawo za 5m, 20mm aluminiyamu silicate ulusi womverera umayikidwa pakati pa ma castables, ndipo ulusiwo umalumikizidwa pambuyo pakukulitsa kuti uteteze kupsinjika kwakukula.

(2) Malunjikidwe athyathyathya: Zingwe zitatu zilizonse za choyikapo zimamangidwa ndi plywood yakuya 100mm mkati mozungulira, ndipo cholumikizira chimasiyidwa kumapeto kwa ntchito, pamizere 6 yonse.

(3) Panthawi yothira, zikhomo 25 zotulutsa mpweya zimagwiritsidwa ntchito pa sikweya mita kutulutsa kuchuluka kwa kupsinjika kwapang'onopang'ono kwinaku akutopetsa ng'anjo.

2. Kutsimikiza kwa kutentha kwa zomangamanga
Kutentha koyenera komanga kwazitsulo za aluminiyamu otsika simenti ndi 10 ~ 30 ℃.Ngati kutentha kozungulirako kuli kochepa, izi ziyenera kuchitidwa:

(1) Tsekani malo omangira ozungulira, onjezani zida zotenthetsera, ndikuletsa kuzizira.

(2) Gwiritsani ntchito madzi otentha pa 35-50 ℃ (yotsimikiziridwa ndi kugwedezeka kwa mayeso) kusakaniza zinthuzo.

3. Kusakaniza
Dziwani kuchuluka kwa kusakaniza nthawi imodzi molingana ndi mphamvu ya chosakanizira.Pambuyo pa kusakaniza kuchuluka kwatsimikiziridwa, onjezerani zinthu zoponyera mu thumba ndi zowonjezera phukusi laling'ono mu thumba mu chosakanizira nthawi yomweyo.Choyamba yambani chosakanizira kuti chiume-kusakaniza kwa mphindi 2 ~ 3, kenaka yikani 4/5 ya madzi oyezera poyamba, yambitsani kwa mphindi 2-3, kenaka fufuzani 1/5 yotsala ya madzi molingana ndi kukhuthala kwa matope. .Pambuyo kusakaniza kwathunthu, kutsanulidwa kwa mayeso kumachitika, ndipo kuchuluka kwa madzi owonjezera kumatsimikiziridwa kuphatikiza ndi kugwedezeka ndi slurry.Pambuyo pa kuchuluka kwa madzi owonjezerawo kutsimikiziridwa, iyenera kuyendetsedwa mosamalitsa.Pomwe kuwonetsetsa kuti slurry imatha kugwedezeka, madzi pang'ono akuyenera kuwonjezeredwa (chiwerengero chowonjezera chamadzi pakuponyedwa uku ndi 5.5% -6.2%).

4. Zomangamanga
Nthawi yomanga ya aluminiyamu yotsika simenti yotsika ndi pafupifupi mphindi 30.Zinthu zowonongeka kapena zowonongeka sizingasakanizidwe ndi madzi ndipo ziyenera kutayidwa.Gwiritsani ntchito ndodo yogwedezeka kuti mugwedezeke kuti mugwirizane ndi slurry.Ndodo yogwedezeka iyenera kutetezedwa kuti ndodo yopuma isagwire ntchito pamene ndodo yogwedezeka yalephera.
Kupanga zinthu zotayidwa kuyenera kuchitidwa m'mizere yozungulira mozungulira ng'anjo yozungulira.Musanatsanulire mzere uliwonse, malo omanga ayenera kutsukidwa ndipo palibe fumbi, kuwotcherera slag ndi zinyalala zina.Nthawi yomweyo, fufuzani ngati kuwotcherera kwa nangula ndi chithandizo cha utoto wa asphalt chilipo.Apo ayi, njira zowonetsera ziyenera kuchitidwa.
Pakumanga mizere, kamangidwe ka ng'anjo iyenera kutsanuliridwa poyera kuchokera ku ng'anjo yamoto kupita kumutu wa ng'anjo pansi pa thupi la ng'anjo.Thandizo la template liyenera kuchitidwa pakati pa nangula ndi mbale yachitsulo.Chitsulo chachitsulo ndi nangula ndi zolimba zomangidwa ndi matabwa.Kutalika kwa formwork ndi 220mm, m'lifupi ndi 620mm, kutalika ndi 4-5m, ndi ngodya yapakati ndi 22.5 °.
Kumanga kwa thupi lachiwiri loponyera kuyenera kuchitidwa mzerewo utatha kukhazikitsidwa ndikuchotsa nkhungu.Kumbali imodzi, template yooneka ngati arc imagwiritsidwa ntchito kutseka kuponya kuchokera kumutu wamoto kupita ku mchira wamoto.Zina zonse ndi zofanana.
Pamene zinthu zoponyera zimagwedezeka, matope osakanikirana ayenera kuwonjezeredwa mu nkhungu ya tayala pamene akugwedezeka.Nthawi yogwedeza iyenera kuyendetsedwa kuti pasakhale thovu zoonekeratu pamwamba pa thupi loponyera.Nthawi yowonongeka iyenera kutsimikiziridwa ndi kutentha kwapakati pa malo omanga.Ndikofunikira kuwonetsetsa kuti demoulding ikuchitika pambuyo poti zida zoponyera zidakhazikitsidwa ndipo zimakhala ndi mphamvu zina.

5. Kuphika kwa akansalu
Ubwino wophika wa ng'anjo yozungulira umakhudza kwambiri moyo wautumiki wa chinsalucho.Mu ndondomeko yophika yapitayi, chifukwa cha kusowa kwa chidziwitso chokhwima ndi njira zabwino, njira yopangira mafuta olemera kuti ayake inagwiritsidwa ntchito mu njira zophika zotentha, zapakati komanso zotentha kwambiri.Kutentha kunali kovuta kulamulira: pamene kutentha kumafunika kulamulidwa pansi pa 150 ℃, mafuta olemera si ophweka kuwotcha;pamene kutentha kuli kwakukulu kuposa 150 ℃, kuthamanga kwa kutentha kumathamanga kwambiri, ndipo kugawa kwa kutentha mu uvuni kumakhala kosiyana kwambiri.Kutentha kwa chinsalu komwe mafuta olemera amawotchedwa ndi pafupifupi 350 ~ 500 ℃ pamwamba, pamene kutentha kwa mbali zina kumakhala kochepa.Mwanjira iyi, chinsalucho chimakhala chosavuta kuphulika (chingwe cham'mbuyomo chaphulika panthawi yophika), chomwe chimakhudza moyo wautumiki wazitsulo.