Kasulumu gypsum ndi gypsum yopangidwa ndi gypsum yopangidwa ndi issulforzing ndikuyeretsa mpweya wopangidwa atatha kuyamwa kwa sulufule-yokhala ndi ufa wosalala. Kuphatikizika kwake kwa mankhwala ndi kofanana ndi ka gysyrate gysum, makamaka folo4 · 22o. Pakadali pano, mphamvu zamphamvu za dziko langa zimagwiritsidwabe ntchito ndi zaka zamphamvu zamoto, ndipo momwemonso zidatulutsidwa ndi malasha mu ndondomeko yoyendetsera minda yoposa 50% ya dziko langa la dziko. Kutulutsa kwakukulu kwa sulufule dioxide kumayambitsa kuipitsa kwa chilengedwe. Kugwiritsa ntchito ukadaulo wa fulufu la fungufu kuti mupange gypsum yopanga gypsum ndi njira yofunika kwambiri yothetsera kukula kwa mafakitale ofananira ndi mafakitale a malasha. Malinga ndi ziwerengero zosakwanira, kutulutsa kwa gypsum yonyowa m'dziko langa kwaposa 90 miliyoni T / A, ndi njira yosinthira gypsum imangokhala makamaka, komanso imawononga ndalama zambiri.
Gypsum ili ndi ntchito za kulemera kopepuka, kuchepetsa phokoso, kupewa moto, zotupa za simenti, zopangidwa ndi gyptum zopangidwa ndi makongoletsedwe ena. Pakadali pano, akatswiri ambiri amachititsa kafukufuku pa pulasitala yopaka. Kafukufukuyu akuwonetsa kuti Plaster Kutulutsa Zinthu Zoyala Micro, kugwirira ntchito bwino komanso chipilala, ndipo chitha kusinthira zinthu zachikhalidwe zam'manja zakokongoletsa khoma. Kafukufuku wolemba xU Juajun ndi ena awonetsa kuti gypsum yopanga itha kugwiritsidwa ntchito popanga zopepuka makhoma. Maphunziro ndi inu Beihong ndi ena awonetsa kuti gypsum gypseum yopangidwa ndi gypsum yomwe imapangidwa ndi gypsum ya penti ija itha kugwiritsidwa ntchito kumbali ya khoma lakunja, khoma lamkati, ndipo limatha kuthana ndi mavuto amkati monga chipolopolo. matope achikhalidwe. Gyppoight Plaster Kupaka Gypsum ndi mtundu watsopano wamakhalidwe ochezeka. Imapangidwa ndi hemihydrate gypsum monga momwe gawo lalikulu la sime yopezera ndi kuwonjezera zopepuka zopepuka ndi ma Admixtiure. Poyerekeza ndi zopangira za simenti yachikhalidwe, sizophweka kusweka, kumamatira kumangiriza bwino, kumangiriza bwino, kutetezedwa kobiriwira komanso zachilengedwe. Kugwiritsa ntchito gypsum kokhazikika kuti apange hemihydrate gypsum sikumangoyambitsa vuto la kusowa kwa gypsum yomanga gypsum ndikukwaniritsa cholinga choteteza zachilengedwe. Chifukwa chake, kutengera kafukufuku wa gypsum gypsupu, amayesa kukhala ndi nthawi, mphamvu yolimbana ndi njira yomwe ikukhudza matope a gypsumu, ndikupereka maziko a chitukuko- Kuwirikiza Kupaka Matope Gypsum.
1 kuyesa
1.1 zopangira
Ma desilfurization gypsum ufa: hemihydrate gypsum yomwe imapangidwa ndikuwerengedwa ndi magesi a Floulforation, malo owoneka bwino amagwiritsidwa ntchito, ndipo malo ake oyambira amawonetsedwa mu tebulo 2. %, 8%, 12%, ndi 16% kutengera kuchuluka kwa matope a gypsum.
Wobwezererera: Gwiritsani ntchito sodium citrate, kusanthula kwa mankhwala kwamphamvu, sodium citrate kumatengera kuchuluka kwa matope a Sypsum, ndipo chiwerengero chosakaniza ndi 0.1%, 0.2%.
Cellulose ether: gwiritsani ntchito hydroxypropyl methylcellulose (hpmc), ma viscc ndi 400, hpmc yosakaniza ndi 0, 0.1%, 0.2%.
1.2 Njira Yoyesera
Kudya kwamadzi ndikukhazikitsa nthawi ya kusasinthika kwa gypsum kotanthauza GB / T17669.4-1999.4-1999 " 2012 "Plasing Gypsum" imachitika.
Mphamvu zosinthika komanso zopatsirana za gypsum zokhala ndi gypsum zimachitika molingana ndi GB / T9776-2008 "Kupanga gypsum" Mphamvu yosinthika komanso yolemetsa ya matope owoneka bwino a gypsum ikachitika molingana ndi GB / T, popanga gypsum ", ndipo mphamvu yachilengedwe ya 1D ndi 28D imayeza motero.
Zotsatira ziwiri ndi zokambirana
2.1 Zotsatira za gypsum ufa wokhala pa makina owoneka bwino popaturitsa gypsum gypsum
Kuchuluka kwa gypsum ufa, ufa wa miyala yamtengo wapatali komanso yopepuka yopepuka ndi 100%, ndipo kuchuluka kwa mawonekedwe owoneka bwino komanso osakaniza osasinthika. Pamene kuchuluka kwa gypsum ufa ndi 60%, 70%, 80%, ndi 90%, kusungunuka kwa matope a gypsum ndi compres.
Mphamvu yothana ndi kuthekera kolemetsa kwa gypsum yopepuka ya gypsum yomwe imakwera ndi zaka zonse ziwiri, zomwe zikuwonetsa kuti digiri ya hydirate ya gypsum imakhala yokwanira zaka. Ndi kuwonjezeka kwa gypsum ufa, mphamvu yothekera yothekera komanso mphamvu yovuta kwambiri ya gypleum yopepuka idawonetsa momwe zinaliri, ndipo mphamvu zopsinjika pa masiku 28 zinali zomveka. Pa zaka za 1D, mphamvu yakuthambo ya gypsum ufa wosakanizidwa ndi 90% yowonjezeka ndi 10,3% yofananira ndi 60% gypsum ufa, ndipo mphamvu yolingana yoyendera idawonjezeka ndi 10.1%. Ali ndi zaka 28, mphamvu yosinthika ya gypsum ufa wosakanizidwa ndi 90% kuchuluka kwa 8.8% poyerekeza ndi gypsum ufa wosakanizidwa ndi 2.6%. Kuwerenga, kutha kudziwa kuti kuchuluka kwa gypsum ufa kumakhala ndi zotsatira zamphamvu kwambiri kuposa mphamvu yolemetsa.
2.2 zotsatira za zopepuka zopepuka zopepuka pa makina owoneka bwino a gypsum
Kuchuluka kwathunthu kwa gypsum ufa, ufa wamfupi ndi wonyezimira ndi 100%, ndipo kuchuluka kwa gypsum ufa ndi kuphatikizika kwa greplum susintha. Kuchuluka kwa michere ya michere ndi 4%, 8%, 12%, ndi 16%, ndi 16%, mbale yopepuka yosintha matope a gypsum.
Pazaka zofanana, mphamvu zothekera zakuthambo komanso kulimba mtima kwa matope a sypsum atatsika ndi kuchuluka kwa zomwe zakhala ndi michere. Izi ndichifukwa choti ambiri mwa michere ya Virting atchentchera mkati ndi mphamvu zawo zimakhala zochepa, zomwe zimachepetsa mphamvu yosinthika ya matope a gypsum. Pazaka za 1D, mphamvu yakuthambo ya 16% gypsum ufa idachepetsedwa ndi 35.3% poyerekeza ndi 4% gypsum ufa, ndipo mphamvu yolingana yolingana idachepetsedwa ndi 16.3%. Ali ndi zaka 28 Kuwerenga, zitha kunenedwa kuti zotsatira za zomwe zili mu Mitroused Microud pa mphamvu zotheratu zamphamvu ndizoposa izi pamphamvu yolemetsa.
2.3 zotsatira za zopumira pa ikani nthawi yopepuka gypsuum
Mlingo wonse wa gypsum ufa, ufa wamfupi ndi wonyezimira ndi 100%, ndipo mlingo wa gypsum ufa, ufa wopepuka ndi ellurose ether susintha. Pamene mlingo wa sodium citrate ndi 0, 0.1%, 0,2%, 0.3%, kukhazikitsa nthawi kwa matope a gypsum.
Nthawi yoyambira ndi nthawi yomaliza ndi nthawi yomaliza yopepuka ya gypsum yokhazikika imakwera ndikuwonjezera kwa sodium yomwe imachitika, koma kuchuluka kwa nthawi ndikochepa. Pamene sodium yomwe ili ndi sodium ndi 0.3%, nthawi yoyamba yolowera imapitilira 28min, nthawi yomaliza inali yayitali ndi 33min. Kuchulukitsa kwa nthawi yomwe yafika kungakhale chifukwa chachikulu cha gypsum yokhazikika, yomwe imatha kuyamwa kwambiri ndi gypsum ndikulepheretsa ku Gypsum slurry kupanga dongosolo lamphamvu. Kupitilira nthawi ya gypsum.
2.4 zotsatira za cellulose ether za makina opanga zopepuka zopepuka ndi gypsum
Mlingo wonse wa gypsum ufa, ufa wamfupi ndi owoneka bwino ndi 100%, ndipo mlingo wa gypsum ufa, ufa wamtali, wopepuka ndi wobwezeretsanso osasinthika. Mlingo wa hydroxypropyll methylcellulose ndi 0, 0.1%, 0,2% ndi 0,4%, mphamvu zosinthika ndi zolimbitsa thupi zam'matope za gypsum.
Pazaka za 1D, mphamvu yosinthika yopepuka ya sypsum yopepuka idakwera kenako ndikuchepetsa ndi kuchuluka kwa hydroxypropyls. Pazaka 283 zakuthambo zakutha kwa gypsum zopepuka ndi kuchuluka kwa hydroxpyulose ya hydroxpyulose yotsika, mphamvu yosinthika idawonetsa momwe poyamba, kenako ndikuchepetsa. Pamene zomwe zili hydroxypropyl methylcellulose ndi 0,2%, mphamvu yothetsa yothana ndi zaka 1D kapena 28d, mphamvu yamphamvu ya matope owoneka bwino Kuchulukitsa kwa hydroxypropyl methylcelulose zomwe zili, ndipo kutsika komwe kumachitika kumawonekera pa 25D. Izi ndichifukwa ma cellulose ether ali ndi mphamvu yamadzi kusungunuka kwamadzi ndikukula, ndipo kufunikira kwa madzi kumakulitsa kuchuluka kwa ma eleulese embi, zomwe zimapangitsa kuti pakhale kuchuluka kwa madzi, potero kuchepetsa mphamvu wa gyplum.
Mapeto
(1) Ma digiri ya hydrate a gypsum amakhala okwanira zaka. Ndi kuwonjezeka kwa gypsum ufa wa gypsum, mphamvu yosinthika yopepuka ya gypleum yopepuka idawonetsa zomwe zidachitika kumtunda, koma kuwonjezeka kunali kochepa.
. Mphamvu.
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. Kuchulukana kenako ndikuchepetsa.
Post Nthawi: Feb-02-2023