Izitena zeMullite kunye nezitena zeSillimanite
Izitena ezininzisisitena esinobuqhophololo be-alumina ephezulu esisebenza kakuhle esine-mullite (3Al₂O₃·2SiO₂) njengesigaba esiphambili sekristale, ekuphela kwento ezinzileyo yesigaba sekristale ephezulu kwinkqubo ye-Al₂O₃-SiO₂. Sinobuqhophololo obuqinileyo kakhulu kubushushu obuphezulu (akukho kuguquka okungaphezulu kwe-1600℃ kokusetyenziswa ixesha elide, ukuqhekeka okuphantsi kakhulu), ukusebenza kakuhle kobushushu (ukwanda okuphantsi kobushushu, ukulwa nokuqhekeka/ukuqhekeka), ukumelana nokugqwala okugqwesileyo (ukuxhathisa ukukhuhla kwe-asidi/ukungakhathali kwe-slag kunye nokugqwala okunyibilikayo, okuncinciungcoliseko), amandla aphezulu okuxinzelela ubushushu begumbi kunye nokubonakala okuphakathi, kunye neenkcukacha ezipheleleyo kunye nokwenza ngokwezifiso okuguquguqukayo, kusebenza kakhulu kumashishini ahlukeneyo obushushu obuphezulu, okwenza kube yinto ekhethwayo yokuchasana kwi-core lining yee-oven ezahlukeneyo zobushushu obuphezulu.
Udidi lweMveliso:
1. Isitena se-Sintered Mullite:Yenziwe nge-bauxite kunye ne-silica (1600-1700℃ sintering), i-Al₂O₃ 65%-72%. Ixabiso layo liphantsi, ivuthiwe, ifanelekile kwiimeko eziqhelekileyo zobushushu obuphakathi nophezulu; ifumaneka kwizitena ezisemgangathweni/ezinemilo ekhethekileyo, ezisetyenziswa kakhulu kwizixhobo zokwakha nakwii-oven zesinyithi.
2. Izitena zeMullite ezidityanisiweyo:Ifakwe ngombane (ngaphezulu kwe-1900℃), ikristale erhabaxa, isakhiwo esixineneyo. I-Al₂O₃ 70%-75%, ukumelana nokutsha kwe-thermal shock/corrosion okuphezulu, i-creep ephantsi kakhulu. Ifanelekile kwiimeko zobushushu obuphezulu (ngaphezu kwe-1650℃) (ii-ovens zeglasi ezinyibilikayo, i-metallurgy ephezulu).
3. Izitena zeZircon Mullite:I-Mullite + zircon (ZrSiO₄) isongezo (1650-1720℃ sintering). I-Al₂O₃ 68%-75%, i-ZrO₂ 8%-15%, ukumelana nokukhukuliseka okunamandla. Isetyenziswa kwiindawo ze-oven ezinyibilikisa iglasi kunye nee-oven ezinyibilikisa i-non-ferrous ezikhukuliseka kakhulu.
4. Izitena zeMullite ezicocekileyo kakhulu:I-alumina/silica ecocekileyo kakhulu, i-Fe₂O₃≤0.2%, i-Al₂O₃ 72%-78%, i-refractoribility engaphezulu kwe-1850℃. Ayinangcoliseko, izinzile kakhulu kumaqondo obushushu aphezulu, kwiimeko ezicocekileyo kakhulu (ukunyibilika kwesinyithi ngokuchanekileyo, ii-oven ze-ceramic ze-elektroniki).
5. Iinxalenye zeMullite esele zenziwe ngaphambili:Yenzelwe ngokwesayizi/imilo ye-oven, akukho kusikwa kwindawo, ukusebenza kakuhle kolwakhiwo, ukuvalwa okuhle. Ifanelekile kwiindawo ze-oven ezingacwangciswanga (izitovu ezishushu, ii-oven eziqhekekayo), inciphisa umngcipheko wokuwa kwezitena.
Isitena seSillimaniteYenziwe nge-sillimanite yendalo (Al₂SiO₅, umxholo we-Al₂O₃ wethiyori ongu-62.9%) ngokuhlanganisa, ukwenza kunye nokusinta ngobushushu obuphezulu. Uphawu lwayo oluphambili kukuba i-sillimanite idlula kutshintsho lwesigaba se-mullitization kubushushu obuphezulu (1300-1500℃), ehamba kunye nokwandiswa komthamo ophakathi (2%-3%), okunokunciphisa ukuncitshiswa komzimba wezitena, okwenza umzimba wezitena ube mkhulu kwaye uvalwe ngcono. Ukuchasana kwayo yi-1770-1830℃, efanelekileyo ngokukodwa kwiimeko zokusebenza zobushushu obuphakathi nophezulu kunye nokuguquguquka okukhulu kobushushu kunye nokubola kweekhemikhali, kunye nokusebenza kakuhle kweendleko.
Udidi lweMveliso:
1. Isitena seSillimanite esiqhelekileyo:I-sillimanite yendalo (Al₂O₃ 60%-62%) + i-bauxite/udongwe, ukuthungwa okuqhelekileyo. Ukuxinana okuphakathi, ukutshiswa kobushushu okuhle, ixabiso eliphantsi; kwiqondo lobushushu eliphezulu eliqhelekileyo, ukuguquguquka rhoqo (umqala we-blast furnace, ifenitshala ye-ceramic oven).
2. Isitena seSillimanite esicocekileyo kakhulu:I-sillimanite yendalo ecocekileyo kakhulu (Al₂O₃ 62%-65%), i-Fe₂O₃≤0.3%, i-1580-1650℃ etshisayo. Ixineneyo, ilwa ngcono ne-alkali/ukugqwala; kwi-corrosion encinci yeekhemikhali (ii-kilns zeglasi, ii-furnitures zokunyibilikisa ezingenayo i-ferrous).
3. Isitena seSillimanite-Mullite Composite:I-Sillimanite + i-mullite, ukuzixinanisa kwe-phase transformation + uzinzo lobushushu obuphezulu. I-Al₂O₃ 63%-68%, ilungelelanisa ukumelana nokutshayiswa/ukurhoxa kobushushu; kwiqondo lobushushu elikhulu, ekuthwaleni umthwalo onzima (i-blast furnace bottom, i-glass flow channel).
Iimveliso zezitena zeSillimanite:Isitena setshaneli, umkhombe wokuhamba kwamanzi, umbhobho ojikelezayo, isitya sokutya, iringi ye-orifice, i-stirving paddle, i-punch, i-feed cylinder, isitena se-fire block slag, ibhloko ye-damper, isitena se-arch, i-feed basin cover, isitena esingena emngxunyeni, isitena se-burner, umqadi, isitena sokugquma kunye nezinye iintlobo kunye neenkcukacha.
Iingenelo ezingundoqo:
1. Uzixinaniso lweSigaba soGuquko:Ukwandiswa kwe-mullitization yobushushu obuphezulu kunciphisa ukuncitshiswa, kuqinisekisa ukuba incinci kakhulu kwaye itywinwe kakuhle.
2. Uzinzo oluLungelelanisiweyo loBushushu:Ukwandiswa okuphantsi kobushushu, ukumelana okuhle kakhulu nokutshayiswa/ukukrala kobushushu, okufanelekileyo kutshintsho lobushushu rhoqo.
3. Ixabiso Eliphezulu Nelisebenzayo:Izinto eziluhlaza ze-sillimanite zendalo, ezixabisa kancinci kunezitena ze-mullite, zifanelekile kwiimeko ezinobunzima beendleko.
4. Ukumelana neSlag egqwesileyo:Ayikwazi ukumelana nokugqwala kolwelo olunjenge-slag/glass kunye nokuguguleka kubushushu obuphezulu, kulula ukuyixobula.
5. Yendalo kwaye inobuhlobo nokusingqongileyo:Akukho kungcola kunobungozi, akukho ngcoliseko ininzi yezinto ezibonakalayo, ifanelekile kwii-oven ezilungele indalo.
| Iimveliso | NtathuIphantsiI-Mullite | I-Sintered Mullite | I-Sillimanite Mullite | IdityanisiweI-Mullite | ||||
| Isalathiso | RBTM-47 | RBTM-65 | RBTM-70 | RBTM-75 | I-RBTA-60 | I-RBTA-65 | I-RBTFM-75 | |
| Ukungaguquguquki kwe-Refractoriness(℃) ≥ | 1790 | 1790 | 1790 | 1790 | 1790 | 1790 | 1810 | |
| Ubuninzi bobuninzi (g/cm3) ≥ | 2.42 | 2.45 | 2.50 | 2.60 | 2.48 | 2.5 | 2.70 | |
| Ukuxinana okubonakalayo (%) ≤ | 12 | 18 | 18 | 17 | 18 | 18 | 16 | |
| Amandla okutyumza abandayo (MPa) | 60 | 60 | 70 | 80 | 70 | 70 | 90 | |
| Utshintsho olusisigxina lomgca (%) | 1400°×2h | +0.1 -0.1 | | | | | | |
| 1500°×2h | | +0.1 -0.4 | +0.1 -0.4 | +0.1 -0.4 | +1 -0.2 | ± 0.2 | ± 0.1 | |
| Refractoriness Under Load@0.2MPa(℃) ≥ | 1520 | 1580 | 1600 | 1600 | 1600 | 1620 | 1700 | |
| Creep Rate@0.2MPa 1200°×2h(%) ≤ | 0.1 | ― | ― | ― | ― | ― | ― | |
| I-Al2O3(%) ≥ | 47 | 64 | 68 | 72 | 60 | 65 | 75 | |
| I-Fe2O3(%) ≤ | 1.2 | 0.8 | 0.8 | 0.7 | 1.0 | 0.8 | 0.5 | |
Izitena ezininzi:
1. Ishishini leMetallurgical: Itop yesitovu esishushu, umngxuma wesitovu esiqhumayo, iladle lining, isitovu sokunyibilikisa isinyithi esingenasinyithi;
2. Ushishino lweZixhobo zokwakha: Indawo enobushushu obuphezulu ye-oven ye-ceramic, indawo yokutshintsha ye-oven ye-rotary yesamente, i-oven ye-tunnel enganyangekiyo;
3. Ishishini leGlasi: Umatshini wokuhlaziya, umjelo, ukuhlamba impahla kunye nodonga olusecaleni lwedama lokusebenza lwe-oven yokunyibilikisa iglasi;
4. Ishishini leeKhemikhali: Isithando somlilo esiqhekekayo sePetrochemical, i-calciner enobushushu obuphezulu, isithando somlilo esiqhotsiweyo se-catalyst;
5. Intsimi Ephezulu: I-oven ye-ceramic ye-elektroniki, i-oven ye-metallurgical echanekileyo (ifanelekile kuhlobo olucocekileyo kakhulu).
Izitena zeSillimanite:
1. Ishishini leMetallurgical: Izitena zokukhusela ezantsi kwesitovu somlilo, uphahla lomqala wesitovu somlilo, indawo yokuphuma kwesinyithi, indawo yobushushu obuphakathi nobuphantsi besitovu somlilo oshushu;
2. Ishishini leGlasi: Udonga olusecaleni ledama lokusebenza, umjelo wokuhamba kwamanzi, isitena setshaneli kunye nesitena sokujonga i-regenerator sesithando sokunyibilikisa iglasi;
3. Ishishini leCeramic: Indawo yokutshisa i-oven ye-ceramic, ifenitshala ye-oven (i-saggar, ishelufu), ulwelo lwe-oven ye-tunnel;
4. Ishishini leeKhemikhali: I-lining ye-furnace yokunyibilikisa isinyithi engenasinyithi, i-furnace yokurosa enobushushu obuphezulu, i-furnace yokurosa i-sulfuric acid;
5. Amanye amaCandelo: Icandelo lokutshisa inkunkuma elinobushushu obuphezulu, i-lining ye-preheater ye-oven yesamente (efanelekileyo kuhlobo oluqhelekileyo).
Imibuzo ebuzwa qho
Ngaba ufuna uncedo? Qiniseka ukuba undwendwela iiforam zethu zenkxaso ukuze ufumane iimpendulo kwimibuzo yakho!
Singumvelisi wokwenyani, umzi-mveliso wethu ugxile ekuveliseni izinto ezichasene nendalo kangangeminyaka engaphezu kwama-30. Sithembisa ukubonelela ngexabiso elifanelekileyo, eyona nkonzo ingcono ngaphambi kokuthengisa nasemva kokuthengisa.
Kwinkqubo nganye yemveliso, i-RBT inenkqubo epheleleyo ye-QC yokwakheka kweekhemikhali kunye neempawu zomzimba. Kwaye siza kuvavanya iimpahla, kwaye isiqinisekiso somgangatho siya kuthunyelwa kunye neempahla. Ukuba uneemfuno ezizodwa, siza kuzama konke okusemandleni ethu ukuzilungiselela.
Ngokuxhomekeke kubungakanani, ixesha lethu lokuhambisa lahlukile. Kodwa sithembisa ukuthumela ngokukhawuleza kangangoko kunokwenzeka ngomgangatho oqinisekisiweyo.
Kakade ke, sinikezela ngeesampuli zasimahla.
Ewe, ewe, wamkelekile ukutyelela inkampani ye-RBT kunye neemveliso zethu.
Akukho mda, singakunika ingcebiso nesisombululo esifanelekileyo ngokwemeko yakho.
Besisenza izinto ezirhabaxa kangangeminyaka engaphezu kwama-30, sinenkxaso yobugcisa enamandla kunye namava amaninzi, singanceda abathengi ukuba bayile ii-kiln ezahlukeneyo kwaye banikezele ngenkonzo enye.
