Yuav ua li cas txhim kho Cellulose Ether Production?

Kima Chemical Co., Ltd xav tau qhia txog kev txhim kho cellulose ether cov txheej txheem tsim khoom thiab cov khoom siv hauv kaum xyoo dhau los, thiab tshuaj xyuas cov yam ntxwv sib txawv ntawm kneader thiab coulter reactor hauv cellulose ether ntau lawm txheej txheem. Nrog rau txoj kev loj hlob sai ntawm kev lag luam cellulose ether, lub peev xwm ntau lawm ntawm ib qho khoom siv tau hloov pauv los ntawm ntau pua tons mus rau ntau txhiab tons. Nws yog ib qho inevitable trend rau cov cuab yeej tshiab los hloov cov khoom qub.

Cov lus tseem ceeb: cellulose ether; cov khoom siv ntau lawm; kneader; coulter reactor

Saib rov qab rau kaum xyoo dhau los ntawm Tuam Tshoj txoj kev lag luam cellulose ether, nws yog kaum xyoo zoo kawg nkaus rau kev txhim kho ntawm kev lag luam cellulose ether. Lub peev xwm ntau lawm ntawm cellulose ether tau mus txog ntau tshaj 250,000 tons. Nyob rau hauv 2007, cov zis ntawm CMC yog 122,000 tons, thiab cov zis ntawm non-ionic cellulose ether yog 62,000 tons. 10,000 tons ntawm cellulose ether (hauv 1999, Tuam Tshoj's tag nrho cov cellulose ether tso zis tsuas yog 25,660 tons), suav nrog ntau tshaj li ib feem peb ntawm lub ntiaj teb.'s tso zis; ib tug xov tooj ntawm txhiab-tuj-theem lag luam tau ntse nkag mus rau hauv qeb ntawm 10,000-tuj-theem kev lag luam; Cov khoom lag luam ntau yam tau nce ntau, Cov khoom lag luam zoo tau raug txhim kho tsis tu ncua; Tom qab tag nrho cov no yog qhov kev loj hlob ntxiv ntawm cov txheej txheem thev naus laus zis thiab kev txhim kho ntxiv ntawm cov khoom siv ntau lawm. Piv nrog rau qib siab txawv teb chaws, qhov sib txawv tau nqaim heev.

Tsab ntawv xov xwm no qhia txog kev txhim kho tshiab ntawm cov khoom siv hauv tsev cellulose ether thiab txhim kho cov khoom siv hauv xyoo tas los no, thiab qhia txog kev ua haujlwm los ntawm Zhejiang Chemical Industry Research Institute hauv kev tshawb nrhiav thiab tsim cov khoom siv cellulose ether raws li kev xav thiab kev xav ntawm kev lag luam tshuaj ntsuab. Kev tshawb fawb ua haujlwm ntawm cellulose ether alkalization etherification reactor.

1. Kev tsim khoom siv tshuab thiab khoom siv hauv tsev cellulose ether CMC hauv xyoo 1990

Txij li thaum Shanghai Celluloid Hoobkas tsim cov txheej txheem dej-nruab nrab hauv xyoo 1958, cov khoom siv ib leeg-tsawg-lub zog hnyav txheej txheem thiab lwm cov txheej txheem ntau lawm tau siv los tsim CMC. Hauv tsev, kneaders feem ntau yog siv rau cov tshuaj tiv thaiv etherification. Nyob rau xyoo 1990, lub peev xwm tsim tau txhua xyoo ntawm ib qho kev cog qoob loo CMC ntawm cov tuam txhab feem ntau yog 200-500 tons, thiab cov qauv tseem ceeb ntawm cov tshuaj tiv thaiv etherification yog 1.5m.³ thiab 3m³ kneaders. Txawm li cas los xij, thaum lub kneader yog siv los ua cov khoom siv tshuaj tiv thaiv, vim tias qhov qeeb ntawm caj npab kneading, lub sij hawm ntev etherification cov tshuaj tiv thaiv, qhov feem ntau ntawm cov tshuaj tiv thaiv sab, tus nqi qis ntawm tus neeg sawv cev etherification, thiab cov tsis zoo uniformity ntawm lub kneader. etherification cov tshuaj tiv thaiv hloov pauv, cov tshuaj tiv thaiv tseem ceeb Piv txwv li, kev tswj hwm ntawm da dej piv, alkali concentration thiab kneading caj npab ceev tsis zoo, yog li nws tsis yooj yim rau kev paub txog qhov kwv yees homogeneity ntawm etherification cov tshuaj tiv thaiv, thiab nws tseem nyuaj dua rau kev hloov pauv huab cua. thiab permeation kev tshawb fawb ntawm sib sib zog nqus etherification cov tshuaj tiv thaiv. Yog li ntawd, lub kneader muaj qee yam kev txwv raws li cov khoom siv tshuaj tiv thaiv ntawm CMC, thiab nws yog lub hauv paus ntawm txoj kev loj hlob ntawm kev lag luam cellulose ether. Qhov tsis txaus ntawm cov qauv tseem ceeb ntawm cov tshuaj tiv thaiv etherification nyob rau xyoo 1990 tuaj yeem muab sau ua peb lo lus: me me (tso tawm me me ntawm ib qho khoom siv), qis (qis siv tus nqi ntawm etherification tus neeg saib xyuas), pluag (etherification cov tshuaj tiv thaiv hloov qhov sib xws ntawm lub hauv paus kev faib tawm. yog pluag). Nyob rau hauv kev pom ntawm qhov tsis xws luag hauv cov qauv ntawm lub kneader, nws yog ib qho tsim nyog los tsim cov khoom siv tshuaj tiv thaiv uas tuaj yeem ua kom cov tshuaj tiv thaiv etherification ntawm cov khoom, thiab kev faib tawm ntawm cov khoom siv hauv cov tshuaj tiv thaiv etherification yog qhov sib txawv, yog li kev siv tus nqi. ntawm tus neeg sawv cev etherification yog siab dua. Nyob rau xyoo 1990, ntau lub tuam txhab hauv tsev cellulose ether vam tias Zhejiang Research Institute of Chemical Industry yuav tshawb fawb thiab tsim cov cuab yeej tsim khoom sai sai los ntawm kev lag luam cellulose ether. Zhejiang Kev Tshawb Fawb Lub Tsev Kawm Ntawv ntawm Kev Lag Luam Tshuaj tau pib koom nrog hauv kev tshawb fawb ntawm cov hmoov sib tov thiab cov khoom siv hauv xyoo 1970, tsim ib pab neeg R & D muaj zog, thiab ua tiav cov txiaj ntsig zoo. Ntau yam thev naus laus zis thiab khoom siv tau txais txiaj ntsig los ntawm Ministry of Chemical Industry thiab Zhejiang Science thiab Technology Progress Award. Nyob rau xyoo 1980, peb tau koom tes nrog Tianjin Hluav Taws Xob Tshawb Fawb Lub Tsev Haujlwm ntawm Ministry of Public Security los tsim cov cuab yeej tshwj xeeb rau kev tsim cov hmoov qhuav, uas yeej qhov khoom plig thib peb ntawm Ministry of Public Security's Science thiab Technology Progress Award; nyob rau xyoo 1990, peb tau tshawb nrhiav thiab tsim cov khoom siv sib xyaw ua kua thiab cov khoom siv. Paub txog cov kev loj hlob yav tom ntej ntawm kev lag luam cellulose ether, cov kws tshawb fawb ntawm Zhejiang Provincial Research Institute of Chemical Industry pib tshawb fawb thiab tsim cov khoom siv tshwj xeeb rau cellulose ether.

2. Txoj kev loj hlob ntawm cov reactor tshwj xeeb rau cellulose ether

2.1 Nta ntawm coulter tov khoom

Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm coulter tov khoom yog tias nyob rau hauv qhov kev txiav txim ntawm plowshare-shaped agitator, cov hmoov nyob rau hauv lub tshuab yog turbulent raws lub tog raj kheej phab ntsa nyob rau hauv lub circumferential thiab radial cov lus qhia ntawm ib sab, thiab cov hmoov yog muab pov rau ntawm ob sab. ntawm plowshare ntawm qhov tod tes. Lub trajectories ntawm lub zog yog criss-hla thiab sib tsoo nrog ib leeg, yog li tsim ib tug turbulent vortex thiab tsim ib tug tag nrho cov ntau yam ntawm peb-dimensional qhov chaw txav. Vim tias qhov dej tsis zoo ntawm cov ntaub ntawv fiber ntau cov ntaub ntawv raw, lwm cov qauv tsis tuaj yeem tsav lub voj voog, radial thiab axial txav ntawm cellulose hauv lub tog raj kheej. Los ntawm kev tshawb fawb ntawm CMC cov txheej txheem tsim khoom thiab cov khoom siv ntawm cellulose ether kev lag luam hauv tsev thiab txawv teb chaws, ua tiav kev siv nws 30 xyoo ntawm kev tshawb fawb cov txiaj ntsig, coulter tov khoom tsim nyob rau hauv 1980s tau pib xaiv los ua tus qauv tsim rau kev loj hlob ntawm cellulose. Cov khoom siv tshuaj tiv thaiv ether.

2.2 Kev txhim kho txheej txheem ntawm coulter reactor

Los ntawm kev sim ntawm lub tshuab sim me me, nws tau txais txiaj ntsig zoo dua li lub tshuab kneader. Txawm li cas los xij, thaum lawv siv ncaj qha rau hauv kev lag luam cellulose ether, tseem muaj cov teeb meem hauv qab no: 1) Hauv cov tshuaj tiv thaiv etherification, fluidity ntawm fiber ntau cov khoom siv raw khoom yog qhov tsis zoo, yog li cov qauv ntawm nws coulter thiab ya riam tsis yog. txaus. Tsav lub cellulose txav mus rau hauv lub voj voog, radial thiab axial cov lus qhia ntawm lub thoob, yog li kev sib xyaw ntawm cov reactants tsis txaus, ua rau muaj kev siv tsawg ntawm cov reactants thiab cov khoom tsawg heev. 2) Vim yog qhov tsis zoo ntawm lub ntsiab ncej txhawb nqa los ntawm tav, nws yooj yim ua rau eccentricity tom qab kev ua haujlwm thiab qhov teeb meem ntawm lub tog raj sealing; Yog li ntawd, cov huab cua sab nraud yooj yim nkag mus rau lub tog raj kheej los ntawm lub tog raj kheej foob thiab cuam tshuam rau lub tshuab nqus tsev hauv lub tog raj kheej, ua rau cov hmoov hauv lub tog raj kheej. Kev khiav tawm. 3) Lawv cov li qub yog flapper li qub lossis disc li qub. Lub qub yog ib qho yooj yim rau nqus tau sab nraud cua vim tsis zoo sealing kev ua tau zoo, thaum lub tom kawg yog ib qho yooj yim mus khaws cov ntaub ntawv thiab ua rau poob ntawm reactants. Yog li ntawd, cov teeb meem no yuav tsum tau daws ib tug los ntawm ib tug.

Cov kws tshawb fawb tau txhim kho tus qauv tsim ntawm coulter reactor ntau zaus, thiab muab nws rau ntau lub tuam txhab cellulose ether rau kev sim siv, thiab maj mam txhim kho tus qauv tsim raws li cov lus pom zoo. Los ntawm kev hloov cov qauv ntawm cov coulters thiab staggered kev npaj ntawm ob coulters nyob ib sab ntawm ob sab ntawm lub ntsiab ncej, cov reactants nyob rau hauv qhov kev txiav txim ntawm lub coulters tsis tsuas yog turbulence nyob rau hauv lub circumferential thiab radial cov lus qhia nyob rau hauv lub puab phab ntsa ntawm lub tog raj kheej, tab sis kuj Txaws raws li ib txwm coj ntawm ob sab ntawm lub coulter, yog li cov reactants yog tag nrho tov, thiab cov alkalization thiab etherification cov tshuaj tiv thaiv ua tiav nyob rau hauv cov txheej txheem sib tov yog meej, tus nqi siv ntawm cov reactants yog siab, cov tshuaj tiv thaiv ceev ceev thiab cov kev siv hluav taws xob tsawg. Tsis tas li ntawd, cov ntsaws ruaj ruaj thiab cov kabmob ntawm ob qhov kawg ntawm lub tog raj kheej yog tsau rau qhov kawg phaj ntawm lub bracket los ntawm flange kom nce lub rigidity ntawm lub ntsiab ncej, yog li kev ua haujlwm ruaj khov. Nyob rau tib lub sijhawm, cov nyhuv sealing ntawm lub tog raj kheej tuaj yeem ua kom ntseeg tau vim tias lub ntsiab ncej tsis khoov thiab deform, thiab cov hmoov hauv lub tog raj kheej tsis khiav. Los ntawm kev hloov cov qauv ntawm qhov tso tawm valve thiab ua kom lub cheeb ntawm lub tso pa tawm, nws tsis tuaj yeem tsuas yog tiv thaiv cov ntaub ntawv khaws cia hauv lub qhov tso tawm, tab sis kuj tiv thaiv cov khoom poob ntawm cov hmoov thaum lub sij hawm tso tawm, yog li txo qis cov tshuaj tiv thaiv. cov khoom. Cov qauv ntawm lub reactor tshiab yog tsim nyog. Nws tuaj yeem tsis tsuas yog muab qhov chaw ruaj khov thiab txhim khu kev qha rau cellulose ether CMC, tab sis kuj tseem tiv thaiv cov hmoov hauv lub tog raj kheej kom tsis txhob khiav los ntawm kev txhim kho airtightness ntawm lub foob foob thiab qhov tawm valve. Ib puag ncig tus phooj ywg, paub txog kev tsim lub tswv yim ntawm kev lag luam tshuaj ntsuab ntsuab.

2.3 Kev txhim kho ntawm coulter reactor

Vim yog qhov tsis xws luag ntawm cov me me, qis, thiab cov kneaders tsis zoo, lub coulter reactor tau nkag mus rau ntau lub tsev tsim khoom CMC, thiab cov khoom lag luam suav nrog rau cov qauv ntawm 4m.³,,6m ib³,,8m ib³, 10 m³, 15 m³,,26m ib³. Nyob rau hauv 2007, lub coulter reactor yeej lub teb chaws Utility qauv patent tso cai (patent luam tawm naj npawb: CN200957344). Tom qab xyoo 2007, ib qho tshwj xeeb reactor rau cov uas tsis yog-ionic cellulose ether ntau lawm kab (xws li MC/HPMC) tau tsim. Tam sim no, kev tsim khoom hauv tsev ntawm CMC feem ntau siv cov txheej txheem hnyav.

Raws li cov lus tawm tswv yim tam sim no los ntawm cov tuam txhab cellulose ether, kev siv cov coulter reactors tuaj yeem txo cov kev siv cov kuab tshuaj los ntawm 20% mus rau 30%, thiab nrog kev nce hauv cov khoom siv ntau lawm, muaj peev xwm txo qis kev siv cov kuab tshuaj ntxiv. Txij li thaum lub coulter reactor tuaj yeem ncav cuag 15-26m³, qhov sib xws ntawm kev hloov pauv hauv cov tshuaj tiv thaiv etherification yog qhov zoo dua li ntawm cov kneader.

3. Lwm yam khoom siv ntawm cellulose ether

Nyob rau hauv xyoo tas los no, thaum tsim cellulose ether alkalization thiab etherification reactors, lwm yam qauv kuj tseem nyob rau hauv txoj kev loj hlob.

Cua lifter (patent luam tawm naj npawb: CN200955897). Nyob rau hauv cov txheej txheem hnyav CMC cov txheej txheem tsim khoom, lub tshuab nqus tsev rake feem ntau yog siv los ua cov kuab tshuaj rov qab thiab ziab cov txheej txheem yav dhau los, tab sis lub tshuab nqus tsev rake tsuas tuaj yeem ua haujlwm tsis tu ncua, thaum lub tshuab nqus tsev tuaj yeem paub ua haujlwm tas li. Cov huab cua lifter crushes CMC cov ntaub ntawv los ntawm kev sib hloov ceev ntawm coulters thiab ya riam nyob rau hauv lub tog raj kheej kom nce lub tshav kub hloov lwm lub tsev, thiab sprays chav rau hauv lub tog raj kheej kom tag nrho volatilize ethanol los ntawm CMC cov ntaub ntawv thiab pab txhawb rov qab, yog li txo tus nqi ntawm cov khoom. CMC thiab txuag cov peev txheej ethanol, thiab ua kom tiav kev ua haujlwm ntawm cellulose ether ziab txheej txheem tib lub sijhawm. Cov khoom muaj ob lub qauv ntawm 6.2m³thiab 8m³.

Granulator (patent luam tawm naj npawb: CN200957347). Nyob rau hauv tus txheej txheem ntawm kev tsim cellulose ether los ntawm hnyav txoj kev, ntxaib-ntsia hlau extrusion granulator yog tsuas yog siv nyob rau hauv yav dhau los granulate sodium carboxymethyl cellulose khoom tom qab etherification cov tshuaj tiv thaiv, ntxuav thiab ziab. ZLH hom cellulose ether granulator tuaj yeem tsis tsuas yog granulate tsis tu ncua zoo li cov ntxaib-ntsia hlau extrusion granulator uas twb muaj lawm, tab sis kuj tseem tuaj yeem tshem tawm cov khoom tsis tu ncua los ntawm kev pub cua rau hauv lub tog raj kheej thiab dej txias rau hauv lub tsho. React pov tseg thaum tshav kub kub, yog li txhim kho qhov zoo ntawm granulation, thiab txuag hluav taws xob, thiab tuaj yeem ua rau cov khoom tsim tawm los ntawm kev ua kom cov spindle ceev, thiab tuaj yeem kho qhov siab ntawm cov khoom siv raws li cov txheej txheem. Cov khoom muaj ob lub qauv ntawm 3.2m³thiab 4m³.

Airflow tov khoom (patent luam tawm naj npawb: CN200939372). MQH hom airflow tov khoom xa cov cua compressed mus rau hauv chav sib tov los ntawm lub nozzle ntawm lub taub hau sib tov, thiab cov khoom tam sim ntawd nce spirally raws lub tog raj kheej phab ntsa nrog cov cua compressed los tsim cov fluidized mixing xeev. Tom qab ob peb lub mem tes tshuab thiab nres ib ntus, Kev sib xyaw nrawm thiab sib xyaw ntawm cov ntaub ntawv hauv qhov ntim puv tuaj yeem pom tau. Qhov sib txawv ntawm cov khoom sib txawv ntawm cov khoom yog coj los ua ke los ntawm kev sib xyaw. Tam sim no, muaj tsib yam khoom: 15m³, 30 m³, 50 m³, 80 m³, thiab 100 m³.

Txawm hais tias qhov sib txawv ntawm kuv lub teb chaws cov khoom siv cellulose ether thiab txawv teb chaws qib siab tau raug txo kom tsawg, nws tseem yuav tsum tau txhim kho cov txheej txheem ntxiv thiab txhim kho ntxiv los daws cov teeb meem uas tsis sib haum nrog cov khoom siv tam sim no.

4. Outlook

kuv lub teb chaws txoj kev lag luam cellulose ether yog nquag tsim kev tsim thiab ua cov cuab yeej tshiab, thiab sib txuas cov yam ntxwv ntawm cov cuab yeej siv los txhim kho cov txheej txheem txuas ntxiv. Cov neeg tsim khoom thiab cov cuab yeej siv tau pib sib koom ua ke tsim thiab siv cov cuab yeej tshiab. Tag nrho cov no qhia txog kev vam meej ntawm kuv lub teb chaws txoj kev lag luam cellulose ether. , qhov txuas no yuav muaj kev cuam tshuam tseem ceeb rau kev txhim kho kev lag luam. Nyob rau hauv xyoo tas los no, kuv lub teb chaws txoj kev lag luam cellulose ether, raws li cov cuab yeej technology nrog Suav cov yam ntxwv, tau absorbed thoob ntiaj teb kev txawj ntse, qhia txawv teb chaws cov cuab yeej, los yog siv tag nrho cov khoom siv hauv tsev los ua kom tiav qhov kev hloov pauv los ntawm qhov qub "qhuav, ntxhov, tsis zoo" thiab kev siv zog ua haujlwm ntau lawm rau kev hloov pauv ntawm kev siv tshuab thiab automation kom ua tiav qhov kev vam meej hauv kev tsim muaj peev xwm, kev ua tau zoo thiab kev ua haujlwm zoo hauv kev lag luam cellulose ether tau dhau los ua lub hom phiaj ntawm kuv lub teb chaws cellulose ether manufacturers.