Kuvandudza mamiriro eHPMC yekugadzira tekinoroji uye maitiro ehydroxypropyl methyl cellulose muChina

Kuvandudza mamiriro eHPMC yekugadzira tekinoroji uye maitiro ehydroxypropyl methyl cellulose muChina

Hydroxypropyl methyl celluloseHPMCkune yazvino kugadzirwa kwemumba kunopihwa pamberi kune liquid phase nzira tekinoroji, iyi tekinoroji inomiririrwa ne wuxi makemikari indasitiri yekutsvagisa uye dhizaini Institute muChina yekutsvagisa unit muma1970, tsvakiridzo dzakabudirira pahwaro hwekusimudzirwa, yekutanga ndiyo gasi chikamu nzira etherification reaction, nekuti iyo michina haina kuenderana nenyika yedu, yakazoshanda iyo yemvura chikamu nzira etherification reaction, Parizvino yakakwira chikamu chekugezesa nzira yekugezera nzira inozivikanwa. cellulose ether vagadziri.

Domestic hydroxypropyl methyl cellulose HPMC kugadzirwa kazhinji inoshandisa donje rakanatswa seyakabikwa (vamwe vagadziri vakatangawo kuyedza kushandisa pulp yehuni), uye mudzimba mukukuya kana kushandisa zvakananga donje alkalization yakanatswa, etherification uchishandisa mabhinari akasanganiswa organic solvent, reaction mune yakatwasuka reactor. Nzira yekuchenesa inoshandisa nzira inopindirana umo iyo organic solvent inobviswa mu reactor uye chigadzirwa chisina kuchena chinocheneswa kuburikidza nekugezwa kwakawanda uye kupera mvura kuburikidza nekukwesha uye centrifuges. Kupedzwa kwechigadzirwa kugadziridzwa neinopindirana granulation, pasi pekupisa mamiriro (kune zvakare mugadziri asina granulation), kuomesa uye kupwanya nenzira yakajairwa, yakawanda yeakakosha kugadzirisa inongononoka hydration nguva yechigadzirwa (nekukurumidza kunyungudika) kugadzirisa pasina mildew kudzivirira uye kugovera kugadzirisa, kurongedza shandisa manyore nzira.

Iyo yemvura chikamu nzira ine zvinotevera zvakanakira: iyo yekuita muitiro midziyo yemukati kumanikidza idiki, iyo midziyo yekumanikidza kugona zvinodiwa yakaderera, njodzi diki; Mushure mekuita pamuviri mulye,celluloseinogona kuwedzerwa zvizere uye yakaenzana alkaliized. Lye ine kupinza zviri nani uye kuzvimba kwe cellulose. Iyo etherification reactor idiki, yakasanganiswa nekuzvimba kweyunifomu yealkali cellulose, saka kunaka kwechigadzirwa kuri nyore kudzora, iyo inotsiva dhigirii uye viscosity inogona kuwanikwa yakawanda yunifomu zvigadzirwa, mhando zvakare nyore kutsiva.

Zvisinei, iyi nzira inewo zvipingamupinyi zvinotevera: reactor kazhinji haisi yakakura zvikuru, iyo nhamba yemiganhu inotungamirira kune diki yekugadzira simba, kuitira kuti uvandudze kubuda, zvakakosha kuwedzera nhamba yemagetsi; Zvigadzirwa zvakanatswa uye zvakacheneswa zvinoda mimwe michina, kushanda kwakaoma, kusimba kwevashandi; Nekuti hapana anti-mildew uye kurapwa kwemusanganiswa, zvichikonzera kugadzikana kwechigadzirwa viscosity uye mutengo wekugadzira unokanganiswa; Kurongedza nenzira yemanyorero, kusimba kwevashandi, mutengo wakakwira webasa; Iyo otomatiki dhigirii rekuita control yakaderera pane iyo yegasi chikamu process, saka iyo kutonga kwayo kwakadzikira. Kuenzaniswa negasi phase process, yakaoma solvent recovery systems inodiwa.

Nekuvandudzwa kwemumba hydroxypropyl methyl celluloseHPMCtekinoroji yekugadzira, mamwe mabhizinesi kuburikidza nekuenderera akazvimirira hunyanzvi, hombe kettle fluid chikamu nzira yakagadziriswa nekusvetuka uye nzira, uye ine yayo yehunyanzvi hunhu. Anxin chemistry inoshandisa yepakutanga HPMC kugadzirwa maitiro, kwete chete maitiro ekugadzira ane musoro, iyo oparesheni yekudzora paramita ndeyechokwadi uye yakavimbika, izere uye inonzwisisika kushandiswa kwezvinhu mbishi uye humwe hunhu, uye chigadzirwa chekutsiva dhigirii yunifomu, mabatiro acho akakwana, mhinduro yakajeka yakanaka, uye panguva imwechete kuve nechokwadi kugadzikana kwemhando yechigadzirwa. HPMC yekugadzira mutsara yemamwe mabhizinesi yave otomatiki shanduko, kuzadzisa mudziyo weDCS otomatiki kudzora zvinodiwa, zvinhu zvinosanganisira mvura, yakasimba mbishi zvinhu zvinogona kushandiswa kuyera nemazvo uye kuwedzera DCS system, tembiricha uye kudzvanywa kwekudzora mukuita maitiro zvese zvinoonekwa DCS otomatiki kudzora uye kure kutarisa, Panyaya yekugoneka, kuvimbika, kugadzikana uye kuchengetedzeka kwekugadzira, zviri pachena kuti inoderedza kugadzirwa kwechinyakare nzira, inoderedza kugadzirwa kwechinyakare chete, kuderedzwa kwechinyakare. kusimba, asiwo inovandudza nharaunda yekushanda panzvimbo.