Sidee loo doortaa hydroxypropyl methylcellulose ee hoobiye malaasta ah?

Qiimaha pH-ga guud ee alaabta gypsum waa aashito ama dhexdhexaad.Hadda waxaa jira laba nooc oo ah heerka dhismaha hydroxypropyl methylcellulose suuqa: cellulose tartiib tartiib ah iyo cellulose degdeg ah (S).cellulose degdega ah kuma haboona nidaamyada gypsum.Alaabooyinka, milanka ayaa aad u liidata marka la eego xaaladaha acidic ama dhexdhexaadka ah, iyo hydroxypropyl methylcellulose tartiib tartiib ah ayaa lagu kala diri karaa alaabta gypsum, laakiin cellulose tartiib tartiib ah ayaa leh faa'iido darro weyn, way fududahay in la garto (marka gypsum Ka dib marka hoobiye lagu walaaqo derbiga wakhti gaaban, baro yaryar oo granular ah ayaa u muuqda inay ka soo baxaan dusha sare).Waqtigan xaadirka ah, alaabada gypsum-ka, gaar ahaan mashiinka gypsum-ka ee mashiinka lagu buufiyo, waxaa loo baahan yahay in ether-ka cellulose si buuxda loo kala firdhi karo oo loo kala diri karo wakhti aad u yar, taas oo nooga baahan inaan samayno cilmi-baaris qoto dheer oo ku saabsan ether-ka cellulose-ka-soo-baxa habka wax soo saarka.Daaweynta dusha sare (ma aha waxa loogu yeero ku-darka waxyaabaha kale ee lagu daro ether fasalka caadiga ah), si ay ula qabsadaan nidaamka hoobiye gypsum.Hydroxypropyl methylcellulose ether oo leh daawaynta dusha qoto dheer waxay yeelan kartaa waqti degenaansho leh iyo sifooyin farsamo oo wanaagsan oo ku jira hoobiye gypsum, waxayna si weyn u wanaajin kartaa habka loo siman yahay iyo dhamaystirka hoobiye.

Madaafiicda gypsum-ka ee mashiinka lagu buufiyo guud ahaan waxay isticmaashaa viscosity hydroxypropyl methylcellulose ether inta u dhaxaysa 20,000 iyo 75,000, iyo qadarka dheeriga ah guud ahaan waa 0.2% ilaa 0.4%.Waqtiga dejinta ee hoobiye gypsum lagu buufiyay mashiinka ayaa la xakameynayaa qiyaastii 1 saac.Waxaan isticmaalnaa diiqad dhalista hoobiye gypsum, viscosity caag ah, thixotropy, rheology iyo joogtaynta slurry si loo xukumo waxqabadka alaabta gypsum hoobiye.

Waxaan tixgelineynaa xakamaynta tayada desulfurization geeddi-socodka calcining isha gypsum, buuxinta (sibidhka, wadarta ganaax, budada calcium culus) iyo admixtures (waxaa loo isticmaali karaa kala firdhiso budada cinjirka, hydroxypropyl methyl cellulose ether, perlite balaariyay, gypsum retarder) Doorashada guud ahaan formula wax soo saarka kharash-ool ah.

Hydroxypropyl methyl cellulose ether ee hoobiye gypsum ayaa leh nadiif sare iyo shaqo fiican, waxaana si weyn u amaanay macaamiisha gypsum hoobiye.