Mukugadzirwa kwefiber ye viscose, kuchengetedza kudzora kwakarurama kwekumanikidzwa kwe digester kwakakosha padanho rega rega rekuita, kubva pakubika cellulose kuburikidza nekurapa alkaline cellulose. Kuyerwa kwekumanikidzwa kwe inline panguva chaiyo kunovimbisa kunaka kwechigadzirwa uye kunowedzera kuchengetedzeka kwekushanda nekuchinja zvakananga mashandiro e digester.
Munguva yekushandiswa kwe cellulose alkalization uye NaOH solution concentration ye viscose, zvishandiso izvi zvinopa data streams dzisingadzoreki. Kumanikidzwa kwakanyanya kana kusakwana kunogona kuchinja huwandu hweNaOH, zvichikonzera crystalline deposits inovhara mitsetse ye digester uye inomisa kugadzirwa. Nekupa kuverenga kwekumanikidzwa nekukurumidza, Lonnmeter inline pressure transmitters inobatsira vashandisi kuona kutsauka nekukurumidza, zvichideredza nguva inodhura yekushanda uye kutsigira digester pressure control iyo inochengetedza hupenyu hwemuchina.
Chirimwa cheFiber chemakemikari
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Pfupiso yeKugadzirwa kweViscose Fiber: Mafambiro Emaitiro uye Nzvimbo Dzekudzora
Maitiro ekugadzira viscose fiber ane matanho akati wandei akatevedzana, kutanga nenzira dzekubika cellulose. Pakutanga, cellulose pulp—inowanzo bva muhuni kana donje—inonyikwa mu sodium hydroxide solution. Chikamu ichi, chinozivikanwa se alkaline cellulose treatment, ndipo panosangana cellulose neNaOH kuti igadzire alkali cellulose.kuwanda kweNaOHMhinduro yekugadzira viscose yakakosha; uwandu husina kururama hunoita kuti pave nekuchinja-chinja kwe reactivity uye simba re fiber rinoita serimwechete. Kana huwandu hwe sodium hydroxide hukasiyana nehukuru hunodiwa, cellulose alkalization inova isingaenderane, zvichikonzera kuti fibers dzive ne tensile properties dzakasiyana.
Mushure mekugadziriswa kwealkalization, maitiro acho anotangira pakugeza—kubvisa alkali yakawandisa—uye wozoisa xanthate, uko alkali cellulose inosangana necarbon disulfide kugadzira cellulose xanthate. Iyi intermediate inonyungudutswa mu dilute sodium hydroxide, ichigadzira viscose dope, mhinduro inotenderera inofanira kusangana nezvinodiwa zvemhando yepamusoro. Munguva yematanho aya ekugadzira viscose fiber, kudzora kumanikidzwa kwemuchina wekugaya kwakakosha. Kumanikidzwa kwakasimba kunodzikamisa maitiro emakemikari uye kunochengetedza kuchengetedzeka kwemaitiro. Kudzora kwemhepo inopinza kunoita basa rakakosha—kusakwana kwemhepo inoendesa kunononoka maitiro nepo mhepo yakawandisa ichigona kupwanya zvisimbiso, kukanganisa kugadzikana kwefiber, uye kuwedzera mari yekushanda.
Kutarisa kuenderana kwemhinduro hakungorevi chete kudzora kuwanda kweNaOH mu viscose, asiwo kugadzirisa njodzi dzekristaro nekuvhara dzinowanikwa mukugadzirwa kwefiber. Kukweshana kwekristaro kunogona kuitika kana tembiricha, kuwanda, kana mwero wekuyerera kwemvura zvikasatarisirwa zvakanaka, zvichivharira mapaipi kana ma digester internal. Kushandiswa zvinobudirira kwe inline pressure transmitters kunoita kuti digester pressure irambe ichiteverwa. Inline density metres uye viscosity metres, dzakadai sedzakagadzirwa neLonnmeter, dzinopa data renguva chaiyo pa solution parameters - zvichibatsira kugadzirisa kusanganiswa, kunyungudika, uye kutenderera.
Zvishandiso zvinotakura zvinhu zvine mwero uye zvinotakura tembiricha zvinowedzera izvi, zvichiona kutsauka kunogona kuratidza kuvharika kuri pedyo mukugadzirwa kwe viscose kana njodzi yekuburitswa kwezvakatipoteredza. Mabasa efekitori anotarisawo pakuvhara nzira dzekudzivirira kukwegura uye kusunungura mvura. Zvisimbiso zvinosangana nemhinduro dzinokonzera njodzi zvinopera, zvichikonzera njodzi yekudonha kwemvura kunokuvadza kuchengetedzeka kwevashandi uye kutevedzera mitemo yezvakatipoteredza. Nguva dzekuongorora nguva dzose, maprotocol ekutsiva nguva nenguva, uye masensa ekuona kudonha kwemvura anoshandiswa kuchengetedza kuvimbika kwemaitiro.
Kushandiswa pamwe chete kwenzvimbo idzi dzekudzora uye zvishandiso zviri mukati memuchina panguva yese yekushandiswa kwesodium hydroxide mukugadzira fiber kunoita kuti danho rega rega—kubva pakubika pulp kusvika pakutenderera fiber—rishande zvakanaka. Nzira iyi inodzivirira kuputsika kunodhura, inokurudzira kudzivirira crystallization, uye inotsigira kufanana kunodiwa kuti viscose fiber ibude zvakanaka.
Dhizaini yeChloralkali Process
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Matambudziko Akakosha Ekuita Basa Akagadziriswa NeInline Pressure Measurement Solutions
Kutarisa nekudzora kumanikidzwa mukati mekugadzirwa kwefiber ye viscose kwakakosha kuti chigadzirwa chive chemhando yepamusoro uye mashandiro anoshanda zvakanaka. Kurapa kwe sodium hydroxide mukugadzira viscose, inozivikanwawo se cellulose alkalization, kunoenderana nekudzora kumanikidzwa kwakaringana kuti irambe iine huwandu hwakakwana hweNaOH solution. Ma inline pressure transmitters anopa mhinduro chaiyo, zvichiita kuti mainjiniya eprocess aite basa nekukurumidza kana kutsauka kwaonekwa. Mhinduro iyi nekukurumidza yakakosha kudzivirira zvikanganiso zvakaita sekusagadzikana kwefiber, kuderedza goho, kana simba refiber rakaderera rinogona kukonzerwa nekuchinja-chinja kwepressure panguva yekugadzira fiber ye viscose.
MaLonnmeter inline pressure transmitters anotarisana nematambudziko akawanda akajairika ekushanda. Ruzivo rwavo rwepanguva chaiyo runopa simba rekugadzirisa nekukurumidza panguva yekubika cellulose, uko kupinda kwakafanana kweNaOH mu cellulose pulp kwakakosha. Chero kunonoka pakuona kuchinja kwekumanikidzwa kunogona kukonzera shanduko munzvimbo, zvichikonzera kurapwa kwealkaline cellulose kusina kuenzana. Semuenzaniso, kana kumanikidzwa kuchidonha zvisingatarisirwi panguva yekugaya, kusashandiswa zvakakwana kwe sodium hydroxide mukugadzirwa kwefiber kunogona kukonzera kuumbwa kwefiber isina simba uye kuvharika kubva pakusaita zvakakwana.
Kudzivirira kuvharika kwechinhu kwakakosha zvikuru, sezvo kuumbwa kwekristaro kunogona kuitika mumatanho ekuita kana huwandu hweNaOH hwenzvimbo hukakwira, kana kumanikidzwa kukadonha kunze kwezviyero zvakatarwa. MaLonnmeter transmitters anoramba achitevera nharaunda yekugaya, zvichibvumira vashandisi kupindira kusati kwaita kuumbwa kwekristaro kwakakonzera kuvharika kwakanyanya. Saizvozvowo, nekugonesa kutonga kwakanyatsojeka kwekupinda kwemhepo mukugadzirwa kwefiber, vanotsigira kushanda nesimba uye kudzora tembiricha kwakanyanya, zvinhu zvakabatana zvakanyanya nekuchengetedza kumanikidzwa kwakakodzera kwekugaya uye kufanana kwesimba refiber.
Kuchembera kwechisimbiso nekubuda kwemvura zvinhu zvinogara zvichityisidzira munzvimbo dzekurapa alkaline cellulose, uko makemikari anotyisa anokurumidza kuora kwezvikamu. Ruzivo rwekumanikidzwa kubva kumidziyo yeLonnmeter runopa yambiro yekutanga yemafambiro asina kujairika ekumanikidzwa, zvichiratidza matambudziko ari kubuda muchisimbiso. Kunyora pasi kunyangwe kudonha kudiki kunobatsira kudzivirira kukanganiswa kwekugadzirwa, kurasikirwa kwechigadzirwa, uye kugadziriswa kusina kurongwa, kuderedza mari yenguva refu uye kuchengetedza kuchengetedzeka kwemushandisi.
MaLonnmeter transmitters akagadzirwa kuti abatanidzwe zvakanaka neazvino otomatiki uye masisitimu ekudzora. Kuenderana uku kunoita kuti data rifambe zvakanaka kuti pave nesarudzo dzakarongeka. Kana zvikashandiswa pamwe chete nema inline concentration metres, density metres, viscosity metres, level transmitters, uye tembiricha transmitters, zvinotsigira kutarisisa kwakazara kwemaitiro. Vatariri vemafekitori vanogona kugadzirisa NaOH solution concentration yekudzora viscose ne digester pressure, kuona kuti chigadzirwa chinowirirana, uye kutonga kushandiswa kwesimba zvinobudirira—zvose zvakakosha pakuderedza mari yekugadzirisa uye kuona kuti viscose fiber yakagadzirwa zvakanaka.
Nzvimbo Dzakanakisisa Dzekuisa uye Kubudirira Kwazvo
Kuisa ma "inline pressure transmitters" panzvimbo inopinzwa nekubuda yeNaOH digester kunopa mufananidzo wakakwana, wenguva chaiyo wekuchinja kwe "pressure" panguva yekubika cellulose. Kuverenga kwakarurama kwe "pressure" munzvimbo idzi kunogonesa kudzora kwakasimba pamusoro pe "NaOH solution concentration" ye viscose, zvichikanganisa zvakananga kurapwa kwe alkaline cellulose uye maitiro e "cellulose alkalization". Kuisa ma "transmitters" pedyo nema "control valves" kunobatsira kutevera mutemo we "steam input", iyo inokosha pakugadzirisa ma profiles ekupisa uye kuchengetedza kuenderana kwematanho ekugadzira viscose fiber.
Kuisa panzvimbo dzinopinza mhepo dzinoshandiswa nemhepo uye nzvimbo dzinozivikanwa nekuita kuti mvura ivhare kana kuti itsvedze zvinopa yambiro yekutanga kana paine zvikanganiso zvinogona kuitika. Kutarisa nzvimbo idzi kunoderedza njodzi yekubuda kwemvura inoyerera uye kunotsigira nzira dzekudzivirira kukwegura. Iyi nzira yekudzivirira matambudziko akajairika akadai sekuvharika kwekugadzirwa kweviscose kana kugoverwa kweNaOH kusina kuenzana.
Mhinduro chaiyo kubva kuma "pressure transmitters" inotsigira kudzora kumanikidzwa kwe "stable digester". Kumanikidzwa kwakasimba kwekushanda kunodzivirira kukwira kamwe kamwe kana kudonha kunogona kukonzera kumira kusina kurongwa. Zvinovandudzawo kufanana kwesimba refiber nekuona kuti kurapwa kwe sodium hydroxide mukugadzira viscose kunoramba kuri mukati mezvinangwa.
Ruzivo rwekumanikidzwa runoenderera mberi uye rwakavimbika runoderedza kusashanda zvakanaka kubva mukubuda kwechisimbiso, izvo zvinotungamira mukuchinja-chinja kwekushandiswa kwe sodium hydroxide mukugadzira nekuchengetedza fiber. Kutarisa kumanikidzwa kwakanaka kunotsigira kuenderera mberi kwekugadzirwa kwe viscose fiber nekuderedza marara emakemikari uye kuderedza nguva yekushanda. Sezvo, zvishandiso zvakadaro zvekuyera zviri mukati zvakakosha pakugadzirwa kwe viscose fiber zvinodhura, zvemhando yepamusoro, uye zvisina njodzi kunharaunda. Kunyatsojeka kunoitwa nema pressure transmitters kunoshandura zvakananga mukuvandudzwa kwekushanda zvakanaka, kuderedzwa kwemari yekugadzirisa, uye kufanana kwechigadzirwa.
Mibvunzo Inowanzo bvunzwa (Mibvunzo Inowanzo bvunzwa)
Mubvunzo 1: Kudzora kumanikidzwa kwemuchina wekugaya chikafu munguva chaiyo kunovandudza sei maitiro ekugadzira viscose fiber?
Kudzora kumanikidzwa kwemuchina wekugaya chikafu panguva chaiyo kunoita kuti kurapwa kwe sodium hydroxide uye kubika kwe cellulose kurambe kuri mukati mezvikamu zvakagadziriswa. Kunyatsoita izvi kunoita kuti maitiro e cellulose alkalization afambe nguva dzose, zvichideredza kuchinja kunogona kukanganisa kufanana kwe fiber. Kana kumanikidzwa kwacho kukaramba kwakasimba, cellulose batch yega yega inowana mukana wakaenzana weNaOH, zvichikonzera simba re fiber rinonyatsofungidzirwa uye rakasimba. Chigadzirwa chekupedzisira chinopa mhando yepamusoro nekuda kwemamiriro aya anodzorwa.
Mubvunzo wechipiri: Ndeipi basa rinoitwa neNaOH solution concentration mumatanho ekugadzira viscose fiber?
Kuwanda kweNaOH mumushonga weviscose ndicho chinhu chinoita kuti kurapwa kwealkaline cellulose kubudirire. Cellulose inofanira kuiswa kune NaOH kuti ishandurwe zvinobudirira; kushoma kwazvo kunoita kuti pave nekuita zvisina kukwana, zvichisiya fiber dzisina simba uye dzisina kuenzana. Kuwanda kwakawandisa kunogona kuderedza cellulose, zvichikonzera kuputsika kwefiber. Kudzora kwakarurama kwehuwandu hwe fiber ndiko kunokosha pakuchengetedza kudzora mhando mumatanho ese ekugadzirwa kwefiber yeviscose, kubva pakurapa kwekutanga kusvika pakupetwa kwekupedzisira.
Mubvunzo wechitatu: Ndezvipi zvinetso zvakajairika zvinogona kubatsira ma inline pressure transmitters kudzivirira kugadzirwa kwe viscose fiber?
Ma "inline pressure transmitters" akakosha pakudzivirira kugadzirwa kwe "crystallization" mukugadzirwa kwe "fiber". Kumanikidzwa kwakasimba kunoderedza njodzi yekuumbwa kwe "NaOH crystallization", izvo zvinogona kuvhara mapaipi uye kukonzera kuvharika kunodhura mukugadzirwa kwe "viscose". Zvinogonesawo kudzivirira kukwegura kwe "seal" nekudzivirira kudzikira kwe "pressure" kusingawanzoitiki, izvo zvinogona kuratidza kuti "seal leak". Kuonekwa kwekutanga kwe "seal leak solutions" kunogoneka nekutarisa kuchinja uku, kuderedza kudzimwa kusina kurongwa uye kudzivirira kusvibiswa kwechigadzirwa.
Mubvunzo wechina: Sei mutemo wekupinda kwemhepo uchikosha pakuita kuti viscose fiber ive yakafanana?
Mutemo wekupinda kwemhepo unodzora tembiricha nekumanikidzwa mukati memuchina wekugaya, zvese zvakakosha pakubika cellulose. Kana kuburitswa kwemhepo kukaramba kuchichinja, tembiricha nekumanikidzwa zvinogona kuchinja, zvichikonzera kusawirirana mukuzvimba kwecellulose nekuumbwa kwefiber. Zvishandiso zvekutarisa panguva chaiyo zvinovimbisa kuti fiber batches dzinowana chimiro chakafanana uye simba, zvichitsigira mhedzisiro yezvigadzirwa zvakafanana uye kuderedza kutambisa nekuda kwekutadza kwezvinodiwa.
Mubvunzo 5: Zvimwe zvishandiso zvemukati zvinogona kuwedzera kushanda kwepressure transmitter mumiti yeviscose fiber here?
Zvimwe zvishandiso zve inline process zvinoita basa rinoenderana mukutarisa nekudzora kushandiswa kwe sodium hydroxide mukugadzirwa kwefiber. Kubatanidza inline density metres, viscosity metres neLonnmeter, concentration metres, level transmitters, uye temperature transmitters zvinogadzira mufananidzo wakazara wehutano hweprocess. Semuenzaniso, density metres inosimbisa concentration yeNaOH solutions panguva ye cellulose alkalization, ukuwo viscosity metres ichitarisa flow properties inodiwa kuti ishande zvakanaka. Izvi zvishandiso zvinovimbisa kuti parameter yega yega yawiriraniswa, zvichivandudza fiber quality uye process efficiency.
Nguva yekutumira: Ndira-15-2026
