Nzira yekuvandudza Cellulose Ether Production?

Kima Chemical Co.,Ltd ungada suma kuvandudzwa kweselulosi ether kugadzira maitiro uye michina mumakore gumi apfuura, uye inoongorora akasiyana maitiro ekneader uye coulter reactor mu cellulose ether kugadzira process. Nekukurumidza kusimudzira kweindasitiri ye cellulose ether, kugona kwekugadzira kweseti imwe chete yemidziyo iri kushandura kubva kumazana ematani kuenda kune akati wandei zviuru matani. Itsika isingadzivisiki yemidziyo mitsva kutsiva midziyo yekare.

Mazwi akakosha: cellulose ether; zvigadzirwa zvekugadzira; kneader; coulter reactor

Tichitarisa kumashure pamakore gumi apfuura eChina cellulose ether indasitiri, imakore gumi ane mbiri yekuvandudzwa kweindasitiri yecellulose ether. Kukwanisa kugadzira cellulose ether kwasvika kupfuura 250,000 matani. Muna 2007, kubuda kweCMC kwaiva matani 122,000, uye kubuda kwe-non-ionic cellulose ether kwaiva 62,000 matani. 10,000 matani e-cellulose ether (muna 1999, China's yakazara cellulose ether kubuda kwaingova 25,660 matani), inoverengera inopfuura chikamu chechina chenyika.'s output; mabhizinesi akati wandei ezviuru-ton-level akabudirira kupinda muzvikamu zve10,000-ton-level enterprises; mhando dzechigadzirwa dzakawedzera zvakanyanya, Hunhu hwechigadzirwa hwakavandudzwa zvishoma nezvishoma; kuseri kweizvi zvese ndiko kuwedzera kukura kweiyo process tekinoroji uye nekumwe kuvandudzwa kweyero yezvigadzirwa zvekugadzira. Kana ichienzaniswa neyekune dzimwe nyika yepamusoro nhanho, mukaha wakadzikiswa zvakanyanya.

Chinyorwa ichi chinosuma kuvandudzwa kwazvino kwekugadzirwa kweselulosi ether mudzimba uye kuvandudzwa kwemidziyo mumakore achangopfuura, uye chinosuma basa rakaitwa neZhejiang Chemical Industry Research Institute mukutsvaga nekugadzira michina yekugadzira cellulose ether inoenderana nedzidziso uye kufunga kwegirinhi kemikari indasitiri. Basa rekutsvaga pa cellulose ether alkalization etherification reactor.

1. Tekinoroji yekugadzira uye midziyo yemumba cellulose ether CMC muma1990s

Kubva Shanghai Celluloid Factory yakagadzira iyo-yepakati-yemvura maitiro muna 1958, imwe-chishandiso yakaderera-simba rekunyungudutsa uye mamwe maitiro ekugadzira akashandiswa kugadzira CMC. Mumba, makneader anonyanya kushandiswa kuita etherification reactions. Mumakore ekuma1990, kugadzirwa kwepagore kweimwe yekugadzira chirimwa CMC yevazhinji vagadziri yaive 200-500 matani, uye iwo mainform etherification reaction aive 1.5m.³ uye 3m³ vanokanya. Zvisinei, kana chikanyiwa chinoshandiswa semudziyo wekuita, nekuda kwekunonoka kweruoko rwekukanya, nguva yakareba ye etherification reaction, chikamu chepamusoro chekutarisana nemativi, kushandiswa kwehuwandu hwekushandiswa kweetherification agent, uye kusafanana kweiyo. etherification reaction inotsiva kugovera, iyo main reaction mamiriro Semuenzaniso, kudzoreka kwechiyero chekugezesa, alkali concentration uye kukanya ruoko kumhanya hakuna kunaka, saka zvinonetsa kuona iyo yekufungidzira homogeneity ye etherification reaction, uye zvakatonyanya kuoma kuita hukuru hwekufambisa. uye permeation tsvakiridzo yezvakadzama etherification reaction. Naizvozvo, kneader ine zvimwe zvinogumira seyekuita midziyo yeCMC, uye ndiyo bhodhoro rekuvandudza kweiyo cellulose ether indasitiri. Kusakwana kweiyo mainstream modhi ye etherification reaction muma1990s inogona kupfupikiswa mumashoko matatu: diki (diki kuburitsa kwechinhu chimwe chete), yakaderera (yakaderera utilization mwero we etherification agent), yakashata (etherification reaction inotsiva Kufanana kweiyo base kugovera. murombo). Tichifunga nezvekukanganisika kwechimiro chekneader, zvinodikanwa kugadzira dhizaini inogona kukurumidza kuita etherification reaction yechinhu, uye kugoverwa kwevanotsiva mune etherification reaction yakawedzera yunifomu, kuitira kuti chiyero chekushandisa. ye etherification agent iri pamusoro. Mukupera kwema1990, mabhizinesi mazhinji emudzimba cellulose ether aitarisira kuti Zhejiang Research Institute ye Chemical Industry yaizotsvaga nekugadzira michina yekugadzira inodiwa nekukurumidza neindasitiri ye cellulose ether. Zhejiang Research Institute yeChemical Indasitiri yakatanga kupinda mukutsvagisa hupfu hwekusanganisa maitiro nemidziyo muma1970s, yakaumba timu yakasimba yeR & D, ikawana mhedzisiro inogutsa. Mazhinji matekinoroji nemidziyo yakapihwa neBazi reChemical Indasitiri uye Zhejiang Sayenzi uye Tekinoroji Kufambira Mberi. Mumakore ekuma1980, takabatira pamwe neTianjin Fire Research Institute yeBazi rePublic Security kugadzira michina yakakosha yekugadzira hupfu hwakaoma, iyo yakahwina mubairo wechitatu weBazi rePublic Security's Science and Technology Progress Award; muma1990, takatsvaga uye takagadzira tekinoroji yekusanganisa-mvura uye michina. Vachiziva nezveramangwana rebudiriro yeindasitiri yecellulose ether, vaongorori veZhejiang Provincial Research Institute yeChemical Indasitiri vakatanga kutsvaga nekugadzira michina yekugadzira yakakosha ye cellulose ether.

2. Iyo nzira yekuvandudza yakakosha reactor ye cellulose ether

2.1 Zvimiro zvecolter musanganiswa

Musimboti wekushanda wemusanganisi we coulter ndewekuti pasi pechiito chegejo-yakaita agitator, hupfu mumushini hunobvongodza padivi pe cylinder madziro mu circumferential uye radial nzira kune rimwe ruoko, uye hupfu hunokandwa parutivi mativi maviri. yegejo nerumwe rutivi. Nzira dzekufamba-famba dzakapokana uye dzinodhumhana, nokudaro zvichigadzira mhirizhonga uye kuumba huwandu hwakazara hwematatu-dimensional nzvimbo yekufamba. Nekuda kwekushomeka kwemvura yefibrous reaction mbishi zvinhu, mamwe mamodheru haakwanise kutyaira kutenderera, radial uye axial mafambiro e cellulose mucylinder. Kuburikidza netsvagiridzo yeCMC yekugadzira maitiro uye zvishandiso zveiyo cellulose ether indasitiri kumba nekune dzimwe nyika, ichishandisa zvizere makore ayo makumi matatu emhedzisiro yekutsvagisa, musanganiswa wecolter wakagadzirwa muma1980s wakatanga kusarudzwa semuenzaniso wekutanga wekuvandudza cellulose. ether reaction equipment .

2.2 Maitiro ekuvandudza ecolter reactor

Kuburikidza nekuedzwa kwemuchina mudiki wekuyedza, zvamazvirokwazvo wakawana mhedzisiro iri nani pane yekukanya. Nekudaro, kana ichishandiswa zvakananga muindasitiri ye cellulose ether, pachine matambudziko anotevera: 1) Mukuita kwe etherification, fluidity yefibrous reaction raw material haina kusimba, saka chimiro checolter yayo nebanga rinobhururuka haisi. zvakakwana. Dhiraivha cellulose kuti ifambe mudenderedzwa, radial uye axial nzira dzebhari, saka kusanganiswa kwezvinoita hakuna kukwana, zvichikonzera kuderera kwekushandiswa kwezvinoita uye zvigadzirwa zvishoma. 2) Nekuda kwekusaomarara kweiyo shaft huru inotsigirwa nembabvu, zviri nyore kukonzeresa eccentricity mushure mekushanda uye dambudziko rekudonha kweshaft seal leakage; saka, mhepo yekunze inopinda nyore nyore cylinder kuburikidza nechisimbiso che shaft uye inokanganisa kushanda kwevacuum mu cylinder, zvichiita kuti pave nehupfu muhumburu. Escape. 3) Mavharuvhu avo ekuburitsa mavharuvhu kana mavharuvhu edhisiki. Iyo yekutanga iri nyore kufemera kunze kwemhepo nekuda kwekusaita chisimbiso chisina kunaka, nepo chekupedzisira chiri nyore kuchengetedza zvinhu uye kukonzera kurasikirwa kweanogadzirisa. Nokudaro, matambudziko aya anofanira kugadziriswa rimwe nerimwe.

Vatsvagiri vakavandudza dhizaini yecolter reactor kakawanda, uye vakaipa kune akati wandei cellulose ether mabhizinesi ekushandisa muyedzo, uye zvishoma nezvishoma akavandudza dhizaini zvinoenderana nemhinduro. Nekushandura chimiro chemaitiro emakororo uye kurongeka kwakakanuka kwemaviri ari padhuze pamativi ese emugodhi mukuru, izvo zvinogadzirisa pasi pechiito chezvivharo hazvingoite mhirizhonga mumativi e circumferential uye radial padivi pemadziro emukati ecylinder, asi. zvakare Splash pamwe neyakajairwa nzira yemativi ese e coulter, saka mareactants akanyatso kusanganiswa, uye alkalization uye etherification maitiro anopedzwa mukusanganisa maitiro akakwana, chiyero chekushandisa chezvinoita chakakwira, kukurumidza kwekuita kunokurumidza uye simba rekushandisa rakaderera . Uyezve, zvisimbiso zve shaft uye zvigaro zvinotakura kumativi ose e-cylinder zvakagadzirirwa kumucheto weplate yebhureti kuburikidza neflange kuti uwedzere kuoma kweiyo shaft huru, saka kushanda kwakagadzikana. Panguva imwecheteyo, chisimbiso chekuisa chisimbiso chechisimbiso che shaft chinogona kuvimbiswa nokuti shaft huru haigoni kukotama uye kuparara, uye hupfu huri muhumburumbira haupukunyuka. Nekushandura chimiro chevhavha yekuyerera uye kuwedzera dhayamita yetangi yekuburitsa, haigone kudzivirira zvinobudirira kuchengetwa kwezvinhu muvharivha yekuburitsa, asiwo kudzivirira kurasikirwa kwehupfu hwezvinhu panguva yekubuda, nokudaro zvinobudirira kuderedza kurasikirwa kwekuita. zvigadzirwa. Chimiro cheiyo reactor chitsva chinonzwisisika. Iyo haigoni kungopa nzvimbo yakagadzikana uye yakavimbika yekugadzirira kwe cellulose ether CMC, asiwo zvinobudirira kudzivirira hupfu muhumburumbira kubva pakupukunyuka kuburikidza nekuvandudza mhepo yevhavha yechisimbiso uye kuvhara kwevhavha. Yakanaka kwezvakatipoteredza, ichiziva iyo dhizaini pfungwa yegirinhi kemikari indasitiri.

2.3 Kuvandudzwa kwecolter reactor

Nekuda kwekuremara kwezvidiki, zvakaderera, uye zvinyoro zvinokanyiwa, iyo coulter reactor yapinda mudzimba dzakawanda dzekugadzira CMC zvidyarwa, uye zvigadzirwa zvinosanganisira matanhatu mamodheru e4m.³, 6m³,8m³, 10m³, 15m³uye 26m³. Muna 2007, coulter reactor yakahwina nyika Utility model mvumo patent (nhamba yekushambadzira patent: CN200957344). Mushure me2007, yakakosha reactor yeasiri-ionic cellulose ether yekugadzira mutsara (senge MC/HPMC) yakagadzirwa. Parizvino, kugadzirwa kwepamba kweCMC kunonyanya kutora nzira yekunyungudutsa.

Zvinoenderana nemhinduro yemazuva ano kubva kune vanogadzira cellulose ether, kushandiswa kwemacolter reactors kunogona kuderedza kushandiswa kwesolvent ne20% kusvika 30%, uye nekuwedzera kwemidziyo yekugadzira, pane mukana wekuwedzera kudzikiswa kwekushandiswa kwesolvent. Sezvo coulter reactor inogona kusvika 15-26m³, kuenzana kweanotsiva kugovera mune etherification reaction iri nani kupfuura iyo yekukanya.

3. Mimwe michina yekugadzira cellulose ether

Mumakore achangopfuura, tichigadzira cellulose ether alkalization uye etherification reactor, mamwe mamodheru ari kugadziridzwa.

Air lifter (nhamba yekutsikisa patent: CN200955897). Munzira yekunyungudutsa CMC kugadzirwa, iyo rake vacuum dryer yainyanya kushandiswa mukunyungudutsa kudzoreredza uye kuomesa maitiro munguva yakapfuura, asi rake vacuum dryer inogona kungoshandiswa nekupindirana, nepo anosimudza mhepo achigona kuona kuenderera mberi kwekushanda. Iyo inosimudza mhepo inopwanya zvinhu zveCMC kuburikidza nekutenderera nekukurumidza kwemagetsi uye mapanga anobhururuka ari mucylinder kuti awedzere kupisa kwepamusoro, uye anopfapfaidza chiutsi mucylinder kuti chinyatso vhiringa ethanol kubva kuCMC zvinhu uye kufambisa kupora, nekudaro Kuderedza mutengo wekugadzira CMC uye chengetedza zviwanikwa zve ethanol, uye pedzisa kushanda kweiyo cellulose ether yekuomesa maitiro panguva imwe chete. Chigadzirwa chine mhando mbiri dze6.2m³uye 8m³.

Granulator (nhamba yekushambadzira patent: CN200957347). Mukugadzira cellulose ether nenzira yekunyungudutsa, twin-screw extrusion granulator yainyanya kushandiswa munguva yakapfuura kuita granulate iyo sodium carboxymethyl cellulose zvinhu mushure mekuita etherification, kugeza nekuomesa. Iyo ZLH mhando cellulose ether granulator haingogone kungogara senge iripo mapatya-screw extrusion granulator, asi zvakare inogona kuramba ichibvisa zvinhu nekudyisa mweya muhumburumbira uye inotonhorera mvura mubhachi. React tsvina inopisa, nekudaro inovandudza kunaka kwegranulation, uye kuchengetedza magetsi, uye inogona kuwedzera chiyero chekubuda kwechigadzirwa nekuwedzera iyo spindle kumhanya, uye inogona kugadzirisa hurefu hwechinyorwa chinoenderana nezvinodiwa zvemaitiro. Chigadzirwa chine mhando mbiri dze 3.2m³uye 4m³.

Airflow musanganisi (patent yekushambadzira nhamba: CN200939372). MQH mhando yekuyerera kwemhepo musanganiswa inotumira mweya wakadzvanywa mukamuri yekuvhenganisa kuburikidza nemuromo wemusoro wekusanganisa, uye zvinhu zvacho zvinosimuka pakarepo zvine mutsindo pamadziro ecylinder nemweya wakamisikidzwa kuti ugadzire nyika yakasanganiswa. Mushure menguva yakati wandei yekupuruzira nekumbomira, Iko kukurumidza uye yunifomu kusanganiswa kwezvinhu muhuwandu hwakazara kunogona kuitika. Misiyano pakati pemabheji akasiyana echigadzirwa inounzwa pamwechete nekusanganisa. Parizvino, kune marudzi mashanu ezvigadzirwa: 15m³, 30m³, 50m³,80m³uye 100m³.

Kunyangwe mukaha uripo pakati pemichina yekugadzira cellulose ether yenyika yangu uye nhanho dzepamberi dziri kuramba dzichidzikiswa, zvichiri kudikanwa kuti uwedzere kuvandudza danho rekuita uye kuita imwe gadziriso yekugadzirisa matambudziko asingaenderane neazvino zvigadzirwa zvekugadzira.

4. Outlook

indasitiri yenyika yangu cellulose ether iri kushingaira kuvandudza dhizaini uye kugadzirisa kwemidziyo mitsva, uye kusanganisa maitiro emidziyo kuti irambe ichivandudza maitiro. Vagadziri nevagadziri vemidziyo vatanga pamwe chete kugadzira uye kushandisa michina mitsva. Izvi zvese zvinoratidza kufambira mberi kweindasitiri yenyika yangu yecellulose ether. , chinongedzo ichi chichava nemhedzisiro yakakosha pakuvandudzwa kweindasitiri. Mumakore achangopfuura, indasitiri yenyika yangu cellulose ether indasitiri, yakavakirwa pahunyanzvi hune hunhu hweChinese, yakatora ruzivo rwepasi rose, yakaunza michina yekune dzimwe nyika, kana kushandisa zvizere midziyo yemumba kupedzisa shanduko kubva kune yekutanga "tsvina, yakashata, yakashata" uye kugadzirwa kwewekishopu yebasa-yakanyanya kuenda Kushanduko yekugadzira uye otomatiki kuti iwane kusvetuka kukuru mukukwanisa kugadzira, kunaka uye kugona muindasitiri ye cellulose ether chave chinangwa chakafanana chenyika yangu vanogadzira cellulose ether.