Izitena zeSillimanite: Indlu Enamandla Esetyenziswa Ngazo Zonke Izicelo Zemizi-mveliso

Kwiindawo zoshishino apho amaqondo obushushu aphezulu, uxinzelelo, kunye nokuguguleka kwezinto ezibangela iingxaki, izisombululo ezithembekileyo zibalulekile.Izitena zeSillimaniteZibonakala "njengeqela elisebenzayo kwezoshishino," elineempawu ezibalaseleyo eziphucula ukusebenza kakuhle, zinciphise iindleko, kwaye ziphucula umgangatho wemveliso kwi-metallurgy, i-ceramics, kunye nemveliso yeglasi. Nantsi isizathu sokuba zikhethwe kakhulu kwihlabathi liphela.

1. Iipropati Eziphambili: Yintoni Eyenza Izitena zeSillimanite Zibaluleke Kakhulu​

Ezi zitena zifumaneka kwi-aluminosilicate mineral sillimanite, zibonelela ngeenzuzo ezintathu ezingenakoyiswa:

Ukuqaqamba Okuphezulu Kakhulu:Njengoko iqondo lokunyibilika lingaphezulu kwe-1800°C, ziyamelana nobushushu obugqithisileyo (bubalulekile ekunyibilikeni kwesinyithi nasekunyibilikeni kweglasi, apho amaqondo obushushu adlula i-1500°C) ngaphandle kokugoba okanye ukwehla.​

Ukwanda kobushushu obuphantsi:Izinga elingaphantsi kwe-1% kwi-1000°C lithintela ukuqhekeka ngenxa yobushushu, nto leyo eqinisekisa ukuqina kwiindawo ezifudumezayo nezipholileyo ezifana nee-blast ovens.

Ukumelana Okuphezulu:Ziqinile kwaye ziqinile, ziyamelana nokuguguleka okuvela kwiintsimbi ezinyibilikisiweyo/inkunkuma kunye nokukhukuliseka kweekhemikhali ezivela kwiiasidi/ii-alkali—isitshixo sokucubungula iikhemikhali kunye ne-metallurgy.​

Ezi mpawu ziguqula izitena ze-sillimanite zibe "zizinto ezintle ekufuneka zibe nazo" zibe "zizinto ekufuneka zibe nazo" ukuze kuphuculwe ukusebenza.

2. I-Metallurgy: Ukuphucula iMveliso yeNsimbi kunye neNsimbi​

Ishishini lesinyithi lixhomekeke kakhulu kwizitena ze-sillimanite kwizixhobo ezixinezelekileyo kubushushu:

Iilineni zeFlast Furnace:Zigqume "indawo eshushu" (1500–1600°C) yezitovu ezivelisa isinyithi, zingcono kunezitena zomlilo zemveli. Isityalo sentsimbi saseIndiya sinobomi obude be-30% yesitovu kwaye iindleko zokulungisa ziphantsi ngama-25% emva kokutshintsha.​

Iilineni zaseTundish kunye neeLadle:Ukunciphisa ungcoliseko lwesinyithi kunye nokwandisa ubomi be-lining ukuya kuthi ga kwi-40% (ngomenzi wentsimbi waseYurophu ngamnye), ziqinisekisa ukuphathwa kwentsimbi enyibilikisiweyo okuthambileyo.

Iinqanawa zokususa i-sulfurization:Ukuchasana kwazo ne-slag etyebileyo kwi-sulfur kugcina ukuhambelana, kunceda ukuhlangabezana nemigangatho engqongqo yobumsulwa bentsimbi.

Kwabo basebenza ngesinyithi, izitena ze-sillimanite ziyindlela ebalulekileyo yotyalo-mali kwimveliso.

3. Iiseramikhi: Iithayile zokunyusa, izixhobo zokucoca kunye neeseramikhi zobugcisa

Kwizinto zodongwe, izitena ze-sillimanite zisebenza iindima ezimbini ezibalulekileyo:

Iingubo zeKiln:Ukugcina ubushushu obufanayo (ukuya kuthi ga kwi-1200°C) kwii-oven zokutshisa, ukwandiswa kwazo okuncinci kuthintela umonakalo. Umvelisi weethayile waseTshayina unciphisa iindleko zamandla nge-10% emva kokulungiswa kwakhona, kunye nokusetyenziswa kwamandla okuphantsi nge-15–20%.​

Isongezelelo sezinto eziluhlaza:Igayiwe ibe ngumgubo (5–10% kwiingxube), zonyusa amandla oomatshini (amandla okugoba aphezulu angama-25%) kunye nokuzinza kobushushu (umonakalo ongaphantsi kwama-30% wokothuka kobushushu) kwiiseramikhi zobugcisa.