Sidee loo hagaajiyaa Wax soo saarka Eter Cellulose?

Hal qayb oo ka mid ah Kima Chemical Co., Ltd jeclaan lahaa soo bandhig hagaajinta habka wax soo saarka ether cellulose iyo qalabka tobankii sano ee la soo dhaafay, iyo falanqaynta sifooyinka kala duwan ee cajiinka iyo coulter reactor ee habka wax soo saarka ether cellulose. Iyadoo horumarinta degdega ah ee warshadaha ether-ka cellulose, awoodda wax-soo-saarka ee hal qalab oo qalab ah ayaa ka soo wareegaya boqolaal tan ilaa dhowr kun oo tan. Waa isbeddel lama huraan ah in qalab cusub uu beddelo qalabkii hore.

Erayada muhiimka ah: ether cellulose; qalabka wax soo saarka; cajiin; kicinta kicinta

Dib u milicsiga tobankii sano ee la soo dhaafay ee warshadaha ether-ka cellulose ee Shiinaha, waa toban sano oo sharaf leh horumarinta warshadaha etherka cellulose. Awoodda wax-soo-saarka ether-ka cellulose waxay gaartay in ka badan 250,000 oo tan. Sannadkii 2007, wax-soo-saarka CMC wuxuu ahaa 122,000 oo tan, iyo wax-soo-saarka ether-ka cellulose-ka aan-ionic ahayn wuxuu ahaa 62,000 oo tan. 10,000 tan oo ether cellulose ah (1999, Shiinaha'Wadarta guud ee wax soo saarka ether-ka cellulose waxay ahayd 25,660 tan oo keliya), taasoo ka dhigan in ka badan rubuc adduunka'wax soo saarka; tiro kun oo shirkadood ah ayaa si guul leh u galay darajooyinka 10,000-ton ee shirkadood; Noocyada alaabta ayaa si aad ah u kordhay, tayada alaabta ayaa si joogto ah loo hagaajiyay; Waxaas oo dhan ka dambeeya waa qaan-gaadhnimada dheeraadka ah ee tignoolajiyada habka iyo hagaajinta dheeraadka ah ee heerka qalabka wax soo saarka. Marka la barbardhigo heerka sare ee shisheeye, farqiga ayaa si weyn loo yareeyey.

Maqaalkani waxa uu soo bandhigayaa horumarka ugu dambeeyay ee habka wax soo saarka ether cellulose gudaha iyo hagaajinta qalabka sanadihii la soo dhaafay, oo soo bandhigaya shaqada ay samaysay Zhejiang Chemical Industry Research Institute ee cilmi-baarista iyo horumarinta qalabka wax soo saarka ether cellulose ku salaysan aragtida iyo fikirka warshadaha kiimikada cagaaran. Shaqada cilmi-baarista ee cellulose ether alkalization etherification reactor.

1. Tiknoolajiyada wax soo saarka iyo qalabka ee cellulose ether CMC gudaha 1990-meeyadii

Tan iyo markii warshadda Celluloid ee Shanghai ay soo saartay habka dhexdhexaadka ah ee biyaha 1958, qalabka hal-abuurka ah ee awoodda hoose ee habka dareeraha iyo hababka kale ee wax soo saarka ayaa loo isticmaalay si loo soo saaro CMC. Gudaha gudaha, jilbaha ayaa inta badan loo isticmaalaa falcelinta etherification. Sanadihii 1990-meeyadii, awoodda wax-soo-saarka sanadlaha ah ee hal warshad wax-soo-saar CMC ah ee wax-soo-saarayaasha intooda badan waxay ahayd 200-500 tan, moodooyinka caadiga ah ee falcelinta etherification waxay ahaayeen 1.5m³ iyo 3m³ jilbaha. Si kastaba ha noqotee, marka cajiinka loo isticmaalo sida qalabka falcelinta, sababtoo ah xawaaraha gaabiska ah ee cududda cududda, wakhtiga dheer ee falcelinta etherification, saamiga sare ee falcelinta dhinaca, heerka isticmaalka hooseeya ee wakiilka etherification, iyo isku midnimada liidata ee Qaybinta falcelinta etherification beddelka, xaaladaha falcelinta ugu weyn Tusaale ahaan, controllability ee saamiga qubeyska, fiirsashada alkali iyo cajiin xawaaraha cudud waa liidata, sidaas darteed way adag tahay in la ogaado qiyaasta isku midka ah ee falcelinta etherification, iyo way ka sii adag tahay in la sameeyo wareejin ballaaran. iyo cilmi-baarista dhex-dhexaadinta falcelinta etherification qoto dheer. Sidaa darteed, cajiintu waxay leedahay xaddidaadyo gaar ah sida qalabka falcelinta ee CMC, waana ciribtirka horumarinta warshadaha ether-ka cellulose. Ku filnaansho la'aanta moodooyinka caadiga ah ee falcelinta etherification ee 1990-meeyadii waxaa lagu soo koobi karaa saddex eray: yar yar (wax soo saarka yar ee hal qalab), hooseeya (heerka isticmaalka hoose ee wakiilka etherification), liidata (falcelinta etherification ayaa beddelaya isku midka ah qaybinta saldhigga. waa miskiin). Marka la eego cilladaha ku jira qaab dhismeedka cajiinka, waxaa lagama maarmaan ah in la sameeyo qalab falcelin ah oo soo dedejin kara falcelinta etherification ee walxaha, iyo qaybinta beddelka falcelinta etherification waa mid aad u badan, si heerka isticmaalka ee wakiilka etherification ayaa ka sarreeya. Dabayaaqadii 1990-meeyadii, shirkado badan oo ether-ka cellulose ka ah ayaa rajaynayay in Machadka Cilmi-baadhista ee Zhejiang ee Warshadaha Kiimikada uu cilmi-baadhis ku sameeyo oo uu horumariyo qalabka wax-soo-saarka ee degdegga ah ee ay ugu baahan yihiin warshadaha ether-ka cellulose. Machadka Cilmi-baarista ee Zhejiang ee Warshadaha Kiimikada wuxuu bilaabay inuu ku lug yeesho cilmi-baarista habka isku-darka budada ah iyo qalabka 1970-yadii, wuxuu sameeyay koox R & D oo xooggan, waxayna gaareen natiijooyin lagu farxo. Tignoolajiyada iyo qalab badan ayaa la siiyay Wasaaradda Warshadaha Kiimikada iyo Abaalmarinta Horumarka Sayniska iyo Tignoolajiyada ee Zhejiang. Sanadihii 1980-meeyadii, waxaan la kaashanay Machadka Cilmi-baarista Dabka ee Tianjin ee Wasaaradda Amniga Dadweynaha si loo horumariyo qalab gaar ah oo loogu talagalay soo saarista budada qalalan, taas oo ku guulaysatay abaalmarinta saddexaad ee Abaalmarinta Horumarka Sayniska iyo Tignoolajiyada ee Wasaaradda Amniga Dadweynaha; 1990-meeyadii, waxaanu baadhnay oo aanu horumarinay farsamada iyo qalabka isku dhafka dareeraha adag. Isagoo og rajada horumarinta mustaqbalka ee warshadaha ether cellulose, cilmi-baarayaasha Machadka Cilmi-baarista ee Gobolka Zhejiang ee Warshadaha Kiimikada waxay bilaabeen inay cilmi-baaris iyo horumariyaan qalab wax-soo-saar gaar ah oo loogu talagalay ether cellulose.

2. Habka horumarinta ee reactor gaar ah ether cellulose

2.1 Astaamaha isku dhafka coulter

Mabda'a shaqada ee isku-darka coulter waa in iyadoo la raacayo ficilka kicinta-qaabeeya plowshare, budada mashiinka ku jirta waa qallafsanaan darbiga dhululubada ee jihooyinka wareega iyo radial ee hal dhinac, iyo budada waxaa lagu tuuraa labada dhinac. dhanka kale ee xashiishka. Dariiqyada dhaqdhaqaaqa ayaa ah kuwo isdhaafsan oo isku dhaca, sidaas awgeed waxay dhalinayaan vortex-gariir iyo samaynta dhaqdhaqaaq buuxa oo saddex geesood ah. Sababtoo ah dareeraha aadka u liita ee alaabta ceeriin ee falcelinta fayraska ah, moodooyinka kale ma wadi karaan dhaqdhaqaaqa wareegyada, radial iyo axial ee cellulose ee dhululubada. Iyada oo loo marayo cilmi-baarista habka wax-soo-saarka CMC iyo qalabka warshadaha ether-ka cellulose ee gudaha iyo dibedda, iyada oo si buuxda u adeegsanaysa 30-kii sano ee natiijooyinka cilmi-baarista, isku-darka coulter ee la sameeyay 1980-yadii ayaa markii hore loo doortay qaabka aasaasiga ah ee horumarinta cellulose Qalabka falcelinta ether .

2.2 Habka horumarinta ee reactor coulter

Iyada oo loo marayo tijaabada mishiinka yar ee tijaabada ah, waxay runtii heshay saameyn ka fiican tan cajiinka. Si kastaba ha noqotee, marka si toos ah loogu isticmaalo warshadaha ether-ka cellulose, weli waxaa jira dhibaatooyinka soo socda: 1) falcelinta etherification, dareeraha falcelinta falcelinta fayruuska ah waa mid aad u liidata, sidaas darteed qaab dhismeedka coulter iyo mindida duulaya maaha ku filan. U kaxee cellulose si uu ugu dhaqaaqo jihooyinka wareega, radial iyo axial ee foosto, markaa isku darka fal-celiyeyaasha kuma filna, taasoo keentay isticmaalka hooseeya ee fal-celiyeyaasha iyo alaabooyin yar. 2) Sababtoo ah qallafsanaanta liidata ee usheeda dhexe ee ay taageerto feeraha, way fududahay in la keeno eccentricity ka dib qalliinka iyo dhibaatada qulqulka shafka; Sidaa darteed, hawada bannaanka ayaa si fudud ugu soo duusha dhululubo iyada oo sii marinaysa shaabadda shafka waxayna saamaysaa hawlgalka faakuumka ee dhululubada, taasoo keentay in budada ku jirta dhululubada. Ka baxso 3) Tuubooyinkooda dareeraha ah waa valves flapper ama disc valves. Midda hore way fududahay in lagu neefsado hawada bannaanka sababtoo ah waxqabadka xirmidda oo liidata, halka kan dambe ay fududahay in la haysto walxaha oo uu keeno luminta fal-celinta. Haddaba, dhibaatooyinkaas waa in mid mid loo xalliyo.

Cilmi-baadhayaashu marar badan ayay hagaajiyeen naqshadda reactor-ka coulter, waxayna siiyeen shirkado badan oo ether-ka cellulose ah si loogu isticmaalo tijaabada, waxayna si tartiib tartiib ah u hagaajiyeen naqshadda iyadoo loo eegayo jawaab-celinta. Iyada oo la beddelo qaabka qaab-dhismeedka ee coulters iyo qabanqaabada jaranjarada ah ee laba coulters ku xiga ee labada dhinac ee usheeda dhexe ee ugu weyn, reactants hoos ficil of coulters ma aha oo kaliya qaska ee jihooyinka wareeg iyo radial weheliyaan derbiga gudaha ee dhululubada, laakiin Sidoo kale ku daadi jihada caadiga ah ee labada dhinac ee coulter, sidaas darteed fal-celinta ayaa si buuxda isugu dhafan, iyo falcelinta alkalization iyo etherification ee lagu dhammeeyey habka isku-darka ayaa ah mid dhammaystiran, heerka isticmaalka fal-celiyeyaasha ayaa sarreeya, xawaaraha falcelinta waa mid degdeg ah iyo isticmaalka tamarta waa yar yahay . Waxaa intaa dheer, xirmooyinka shafka ah iyo kuraasta xajinta ee labada daraf ee dhululubada ayaa lagu dhejiyaa saxanka dhammaadka ee xargaha iyada oo loo marayo flange si loo kordhiyo qallafsanaanta usheeda dhexe, sidaas darteed hawlgalku waa mid deggan. Isla mar ahaantaana, saameynta daboolka ee shaabadda shafka ayaa la hubin karaa sababtoo ah usha ugu weyni ma foorarsato oo aan qalloocin, iyo budada ku jirta dhululubada kama baxsanayso. Beddelidda qaab dhismeedka tuubada dareeraha iyo ballaarinta dhexroorka haanta qiiqa, ma aha oo kaliya inay si wax ku ool ah uga hortagto haynta walxaha ku jira waalka dheecaanka, laakiin sidoo kale waxay ka hortagtaa luminta budada walxaha inta lagu jiro qiiqa, sidaas darteed si wax ku ool ah u yareeya luminta falcelinta alaabta. Qaab dhismeedka reaktarka cusub waa macquul. Ma bixin karto oo keliya jawi diyaargarow oo xasilloon oo lagu kalsoonaan karo oo loogu talagalay cellulose ether CMC, laakiin sidoo kale si wax ku ool ah uga hortagto budada ku jirta dhululubada inay ka baxdo iyada oo hagaajinaysa hawo-mareenka shaabadda shafka iyo dareeraha dareeraha. Deegaanka saaxiibtinimo leh, garashada fikradda naqshadeynta warshadaha kiimikada cagaaran.

2.3 Horumarinta reactor-ka

Sababo la xiriira cilladaha cajiinka yaryar, kuwa hooseeya iyo kuwa liita, reactor-ku wuxuu galay warshado badan oo CMC ah oo gudaha ah, alaabooyinkana waxaa ka mid ah lix nooc oo 4m ah.³, 6m³, 8m³, 10m³, 15m³iyo 26m³. Sannadkii 2007, reactor-ka coulter wuxuu ku guuleystey ogolaanshaha moodelka Utility ee qaranka (lambarka daabacaadda patentka: CN200957344). Kadib 2007, reactor gaar ah oo loogu talagalay khadka wax soo saarka ee cellulose aan-ionic ahayn (sida MC/HPMC) ayaa la sameeyay. Waqtigan xaadirka ah, wax soo saarka gudaha ee CMC ayaa inta badan qaata habka dareeraha.

Marka loo eego jawaab-celinta hadda jirta ee soosaarayaasha ether-ka cellulose, isticmaalka reactors coulter waxay yareyn kartaa isticmaalka dareeraha 20% ilaa 30%, iyo kororka qalabka wax soo saarka, waxaa jira suurtagal ah in la yareeyo isticmaalka dareeraha. Maaddaama reactor-ku-oolku uu gaari karo 15-26m³, Isku mid ahaanshaha qaybinta beddelka ee falcelinta etherification ayaa aad uga fiican kan cajiinka.

3. Qalabka kale ee wax soo saarka ee ether cellulose

Sanadihii la soo dhaafay, iyada oo la horumarinayo alkalization ether cellulose iyo reactors etherification, moodooyinka kale ee kale ayaa sidoo kale ku jira horumarinta.

Kiishiyaha hawada (lambarka daabacaadda patentka: CN200955897). Habka wax-soo-saarka CMC ee dareeraha, qalajiyaha fakiumka waxaa inta badan loo adeegsan jiray soo kabashada iyo qalajinta dareeraha ee waagii hore, laakiin qalajiyaha vacuum-ka waxaa loo shaqayn karaa oo keliya si aan kala go' lahayn, halka hawa-qaaduhu uu xaqiijin karo hawlgal joogto ah. Wiishashka hawadu wuxuu jajabiyaa walxaha CMC iyada oo loo marayo wareegtada degdega ah ee coulters iyo mindiyaha duulaya ee dhululubada si ay u kordhiso kuleylka kulaylka, oo ku buufiyo uumiga dhululubada si ay si buuxda u beddesho ethanol ka soo baxa walxaha CMC una fududayso soo kabashada, sidaas darteed hoos u dhigi qiimaha wax soo saarka CMC oo badbaadi kheyraadka ethanol, oo dhammaystir hawlgalka ether-ka ether-ka cellulose isla waqti isku mid ah. Alaabtu waxay leedahay laba nooc oo 6.2m ah³iyo 8m³.

Granulator (lambarka daabacaadda patentka: CN200957347). Habka soo saarista ether cellulose ee habka dareeraha, granulator-ka mataanaha ah ee extrusion-ka ayaa inta badan loo isticmaali jiray waagii hore si loo tirtiro sodium carboxymethyl cellulose ka dib falcelinta etherification, dhaqidda iyo qalajinta. Nooca 'cellulose ether granulator' nooca ZLH kaliya kuma ekaan karo si joogto ah sida granulator-ka mataanaha ah ee jira, laakiin sidoo kale wuxuu si joogto ah uga saari karaa agabka isagoo hawada ku quudinaya dhululubada oo biyaha ku qaboojin kara jaakada. Ka fal celi kulaylka qashinka, si kor loogu qaado tayada granulation, iyo badbaadinta korontada, iyo kordhin kartaa heerka wax soo saarka wax soo saarka by kordhinta xawaaraha dunmiilaha, oo hagaajin kara height ee heerka walxaha sida waafaqsan shuruudaha nidaamka. Alaabtu waxay leedahay laba nooc oo 3.2m ah³iyo 4m³.

Isku-darka socodka hawada (lambarka daabacaadda patent: CN200939372). Isku-darka qulqulka hawada ee nooca MQH wuxuu u soo diraa hawo cufan gudaha qolka isku-darka isagoo sii maraya sanbabada madaxa isku-darka ah, maaddaduna waxay isla markiiba kor ugu kacdaa darbiga dhululubada oo ay la socoto hawo cufan si ay u samaysato xaalad isku-dar ah oo dareere ah. Dhawr garaaca garaaca wadnaha iyo hakadka ka dib, isku dhafka degdega ah iyo isku-dhafka ee walxaha mugga buuxa waa la xaqiijin karaa. Farqiga u dhexeeya qaybaha kala duwan ee badeecada waxaa la isugu keenaa marka la isku daro. Waqtigan xaadirka ah, waxaa jira shan nooc oo badeecooyin ah: 15m³, 30m³, 50m³, 80m³, iyo 100m³.

Inkasta oo farqiga u dhexeeya qalabka wax-soo-saarka cellulose ether-ka dalkayga iyo heerarka sare ee ajnabiga ah uu sii yaraanayo, weli waa lagama maarmaan in la sii wanaajiyo heerka habka iyo in la sameeyo horumarin dheeraad ah si wax looga qabto dhibaatooyinka aan la socon karin qalabka wax soo saarka ee hadda jira.

4. Muuqaalka

Warshadaha ether-ka cellulose ee dalkayga ayaa si firfircoon u horumarinaya naqshadaynta iyo habaynta qalabka cusub, iyo isku-darka sifooyinka qalabka si joogto ah loo hagaajiyo habka. Soo-saareyaasha iyo soo-saareyaasha qalabka ayaa bilaabay inay si wadajir ah u horumariyaan una adeegsadaan qalab cusub. Kuwaas oo dhami waxay ka tarjumayaan horumarka warshadaha ether-ka ee dalkayga. , isku xirkani wuxuu saameyn muhiim ah ku yeelan doonaa horumarinta warshadaha. Sanadihii la soo dhaafay, warshadaha ether-ka cellulose ee dalkayga, oo ku salaysan tignoolajiyada leh sifooyinka Shiinaha, ayaa mid ka mid ah qaatay khibrad caalami ah oo horumarsan, soo bandhigtay qalab shisheeye, ama si buuxda u isticmaalay qalabka gudaha si ay u dhamaystiraan isbeddelka asalka ah "wasakh, wasakh ah, sabool ah" iyo wax-soo-saarka aqoon-is-weydaarsiga shaqada-degdegga ah ee loo gudbayo u-guurka makaanaynta iyo automation-ka si loo gaaro guul weyn oo xagga awoodda wax-soo-saarka, tayada iyo hufnaanta warshadaha ether-ka cellulose waxay noqotay hadafka guud ee soo-saareyaasha ether-ka-cellulose-ka ee waddankeyga.