Lub tshuab cov ntaub so ntswg hauv Türkiye tau hu rau peb nrog cov teeb meem tsis tu ncua: lawv cov crescent yav dhau los khiav ~ 1,400 m / min ntawm 100% cov khoom siv rov ua dua tshiab (ONP / OMG blend) muaj qhov tsis ruaj khov Yankee tshuab ziab khaub ncaws, 3-4 lub web so ib zaug, thiab cov kws kho mob tuaj yeem siv sijhawm li 3-4 hnub. Tshuab efficiency tau poob qis dua 82%. Hauv qab no yog cov kev sib tham tseem ceeb.
Txheej Instability
Q: Lub Yankee txheej viav vias ntawm tuab heev (cov hniav chatters) thiab nyias dhau (lub vev xaib yuav tsis lo, daim ntawv flutter thiab so). Peb tab tom tawg 3-4 zaug ib zaug. Lub hauv paus yog dab tsi?
A: Qhov no yog qhov teeb meem sib npaug ntawm txheej txheej - ntau heev nrog cov tshuab siv fiber ntau. Cov khoom siv rov ua dua tshiab coj cov khoom siv fiber ntau zoo, cov ntsiab lus muab tub lim, thiab cov khoom paug (cov nplaum nplaum, siv quav ciab, cov nplaum los ntawm cov ntawv xov xwm qub thiab cov chaw ua haujlwm pov tseg) rau hauv cov dej dawb. Tag nrho cov no cuam tshuam nrog yuav ua li cas cov nplaum txheej txheej ntawm Yankee nto. Yog tias koj cov nplaum tam sim no tsis sib txuas tsis tu ncua ntawm Yankee kev khiav hauj lwm kub, txheej txheej hloov ntawm cov mos mos (tsim, hniav chatter) thiab nyias dhau (tsis zoo adhesion, flutter, so). Cov nplaum nplaum yog cov thermoplastic - ntawm Yankee qhov kub thiab txias lawv soften, embed rau hauv txheej, thiab tsim cov mos mos uas cov hniav khawb rau hauv lossis tawv me ntsis uas ua rau muaj kev sib tham. Peb pom zoo kom ua khub PR-09 Lub tog raj kheej Adhesive Agent nrog PR-02 Stickies Control Agent upstream los daws ob qho teeb meem ib zaug.
Vim li cas PR-09
Q: Peb cov nplaum yav dhau los kuj yog polyamide -raws li. Vim li cas PR-09 yuav txawv?
A: Tib lub hauv paus chemistry tsis txhais hais tias kev ua tau zoo tib yam. Lub tog raj kheej nplaum tus neeg saib xyuas qhov ua tau zoo yog nyob ntawm polyamide qhov hnyav molecular tis, nws crosslinking kinetics ntawm qhov tseeb Yankee nto qhov kub (150-200 degree), thiab pob ntxiv tiv thaiv. PR-09 crosslinks ntawm kev tswj ceev kom ua tiav "nruab nrab adhesion" - ruaj txaus rau creping, tab sis tsis nruj heev uas cov hniav tuaj yeem ntxuav tsis tau. Nws cov pob khoom ntxiv pab cov txheej txheem tiv thaiv kev cuam tshuam los ntawm cov nplaum nplaum thiab cov kab mob soluble hauv cov khoom siv rov ua dua tshiab. Ib tug generic polyamide uas tsis muaj cov additives no ua ib txheej uas yooj yim rau kev kis kab mob, softening, thiab hnav tsis sib xws - raws nraim qhov tsis ruaj khov uas koj pom. PR-09 yog siv los ntawm ib qho online dilution spray system ncaj qha mus rau Yankee nto, ua ke nrog tus neeg sawv cev tso tawm (PR-07 lossis PR-08) hauv qhov sib piv. Pib npaum li cas: 80-150 mg / m² (qhuav) rau cov nplaum, nrog tso tawm tus neeg sawv cev ntawm 10-30% ntawm cov nplaum nplaum los ntawm qhov hnyav qhuav.
Adhesive & Release Ratio
Q: Peb tau hloov kho cov nplaum thiab tso tawm tus neeg sawv cev ntawm nws tus kheej. Ob leeg yuav tsum ua haujlwm li cas?
A: Lawv tsis muaj kev ywj pheej - lawv yog ib qho kev sib koom ua ke uas tswj cov adhesion - tso tawm tshuav. Cov nplaum nplaum ntau dhau los tso tawm tus neeg sawv cev: web sticks nyuaj heev, txheej tsim, hniav hnav nrawm, tawg nce. Tus neeg tso tawm ntau dhau: txheej dhau los ua nplua dhau, lub vev xaib tsis tuav, creping zoo tee, softness suffers. Nrog PR-09 thiab peb cov neeg ua haujlwm tso tawm, peb pab txhua lub zeb tsim ib qho piv txwv rau lawv lub tshuab ceev, hom pulp, thiab qib ntawv. Lub hom phiaj yog txheej txheej uas rov ua dua nws tus kheej ntawm tus nqi ruaj khov - cov txheej qub tshem tawm los ntawm cov hniav, cov txheej tshiab tsim los ntawm cov tshuaj tsuag - tsis muaj viav vias qus. Thaum koj pom qhov sib piv zoo, ua kom ruaj khov. Tsis txhob caum lub txheej los ntawm kev hloov kho tas li.
Cov txiaj ntsig xav tau
Q: Peb tuaj yeem xav tau dab tsi, thiab sai npaum li cas?
A: Yankee txheej hloov yuav siv sij hawm hloov. Tom qab 6-12 teev ntawm kev siv tshuaj thiab qhov sib piv, cov txheej qub maj mam hloov thiab cov txheej tshiab stabilizes. Tag nrho optimization feem ntau yuav siv sij hawm 24-48 teev. PR-09 ua haujlwm thoob plaws tag nrho cov ntaub so ntswg rau cov khoom siv - rov ua dua, sib xyaw, lossis nkauj xwb. Thaum hloov pulp sib tov, kho cov nplaum-tso qhov sib piv raws li (virgin pulp feem ntau xav tau cov nplaum me ntsis vim yog cov ntaub so ntswg huv).
Cov txiaj ntsig zoo (Recycled Pulp Tissue Machine, ~ 1,400 m / min)
Web so: 3–4 / ua haujlwm → tsawg dua 1 / ua haujlwm
Tus kws kho mob lub neej: 3-4 hnub → 8-10 hnub
Tshuab efficiency: ~ 82% → 90% +
Creping uniformity thiab softness Performance index tau txhim kho
Yankee txheej thickness tswj ruaj khov, kev cuam tshuam tsawg kawg nkaus
Yog tias koj lub zeb tau ntsib qhov zoo sib xws creping instability, ntau cov hniav hnav, los yog txheej txheem tswj cov teeb meem, peb pab neeg muaj peev xwm los tshuaj xyuas koj cov txheej txheem cov txheej txheem thiab pom zoo kom muaj kev daws teeb meem.
