Mu ndondomeko ya makampani opanga mapepala yomwe ikusintha kukhala yothamanga kwambiri komanso yokonza, gawo louma, monga njira yofunika kwambiri yodziwira ubwino wa mapepala ndi momwe amapangira, silinasiye kusintha ukadaulo wake wa zida. Ngakhale kuti masilindala ouma nthunzi amatha kukwaniritsa zosowa zoyambira zouma, amakhala ndi mavuto monga kugwedezeka kwa m'mphepete mwa mapepala, kukwinya, ndi kusweka kwa zochitika zopanga mwachangu kwambiri, zomwe zimapangitsa kuti zikhale zovuta kuzolowera zofunikira pakupanga zinthu zamapepala zochepa komanso zapamwamba. Potengera izi, mipukutu youma ya VAC (yomwe imadziwikanso kuti mipukutu ya Vac, mwachitsanzo, mipukutu youma ya vacuum) yatulukira. Ndi ntchito zawo zapadera zotsukira ndi zotsukira, akhala zida zothandizira kwambiri mu gawo louma la makina ouma a mapepala othamanga kwambiri, kupereka chithandizo chofunikira pakukweza khalidwe ndi magwiridwe antchito mumakampani opanga mapepala.

Ma roll oumitsira a VAC si zida zachikhalidwe zotenthetsera ndi kuumitsa, koma zida zolimbitsa maukonde a mapepala mwachangu komanso zothandizira zoumitsira zomwe zimagwira ntchito mogwirizana ndi masilinda oumitsira nthunzi. Amagwiritsidwa ntchito kwambiri pokonza makina oumitsira a waya umodzi, ndipo amapezeka kwambiri m'mizere yopangira mapepala achikhalidwe, mapepala okhala ndi zokutira, makatoni oyera, ndi mapepala oyambira otsika. Mosiyana ndi njira yogwirira ntchito ya masilinda oumitsira nthunzi achikhalidwe omwe amadalira mpweya wamkati kuti apereke kutentha kouma, ma roll oumitsira a VAC amakwaniritsa kukhazikika kwa ukonde wa pepala kudzera mu kukakamizidwa koipa, ndipo nthawi yomweyo amathandizira kufulumizitsa kutulutsa mpweya wonyowa, kusintha njira yowuma yonse, ndikupanga njira yowuma yogwirizana ya "kutenthetsa + kukhazikika kwa ukonde wa pepala".

Ponena za kapangidwe kake, mipukutu ya VAC dryer imagawidwa m'mitundu iwiri kuti igwirizane ndi liwiro losiyana la galimoto ndi zosowa zopangira. Pakati pawo, mipukutu ya Vac yokhala ndi mizere siifuna bokosi lopangira vacuum lomangidwa mkati. Malo ozungulira ali ndi mizere ya 5mm m'lifupi ndi 4mm kuya, ndipo mabowo ang'onoang'ono amagawidwa pansi pa mipukutu, ndi mabowo okhuthala kwambiri m'mphepete kuti athandize kulumikiza ulusi. Imatha kupanga vacuum digiri ya pafupifupi 2kPa ikalumikizidwa ndi bokosi lopumira mpweya, ndipo liwiro lotsegulira limayendetsedwa pa 0.1% ~ 0.4%, zomwe zimapangitsa kuti mapepala azigwirizana pogwiritsa ntchito mpweya woipa. Kapangidwe kake ndi kosavuta, koyenera kupanga makina apakati komanso othamanga kwambiri. Mtundu wina ndi mipukutu ya Vacuum box yomangidwa mkati, yomwe ili ndi mabowo olondola kapena mabowo okhuthala pa chipolopolo cha mipukutu, ndi chipinda chopangira vacuum chosinthika malinga ndi m'lifupi mkati, cholumikizidwa mwachindunji ndi pampu ya vacuum. Ili ndi digiri yapamwamba ya vacuum komanso yowongolera molondola, yopangidwira makamaka makina a mapepala othamanga kwambiri omwe ali ndi liwiro lopitilira 1000m/min, omwe amatha kuthana bwino ndi vuto la kukhazikika kwa ukonde wa pepala pansi pa mikhalidwe yovuta kwambiri yogwirira ntchito. M'mizere ina yopanga yapamwamba, ma Vac rolls ndi ma dryer cylinders amapanga chiŵerengero cholondola. Mwachitsanzo, makina osindikizira apamwamba kwambiri omwe amatha kutulutsa matani 130,000 pachaka ali ndi gawo lowuma lopangidwa ndi ma silinda 29 owumitsa nthunzi ndi ma Vac rolls angapo okhala ndi mainchesi a 1500mm. Mzere wotsika wa ma dryer cylinders achikhalidwe umasinthidwa kwathunthu ndi ma Vac rolls, zomwe zimapangitsa kuti kupanga kosalekeza kukhale kogwira mtima popanda kulumikiza zingwe ndikuwonjezera kwambiri kukhazikika kwa ntchito.

Mtengo waukulu wa ma roll owumitsa a VAC umachokera ku mfundo yawo yasayansi yogwirira ntchito komanso ubwino wawo pakugwira ntchito mwachangu. Pakupanga kwenikweni, mzere wapamwamba wa masilinda owumitsa nthunzi umapereka kutentha kuti chinyezi chisanduke mu ukonde wa pepala, pomwe mzere wapansi wa ma roll owumitsa a VAC umayamwa mwamphamvu ukonde wa pepala pamwamba pa waya wouma kudzera mu kupsinjika koipa, ndikuchotsa mphamvu ya centrifugal yopangidwa ndi kugwira ntchito mwachangu, ndikuthetsa mavuto amakampani monga kugwedezeka kwa ukonde wa pepala, makwinya, ndi kusweka. Nthawi yomweyo, kuyenda kwa mpweya m'thumba kumayamwa m'mabowo ozungulira, kufulumizitsa kutulutsa kwa mpweya wonyowa, kuswa gawo losunga mpweya wonyowa pamwamba pa ukonde wa pepala, ndikuwonjezera mwachindunji kuchuluka kwa kuumitsa. Pa gawo lowumitsa, kapangidwe ka mabowo okhuthala m'mphepete kumatha kuwonjezera mphamvu ya kulowetsedwa, kusintha kwambiri kuchuluka kwa kupambana kwa ulusi, ndikufupikitsa nthawi yowumitsa. Nkhani yosintha ya makina a pepala a Lee & Man Paper a PM15 ikutsimikizira izi mokwanira. Pambuyo posintha ma silinda oyambilira opachikidwa kawiri kukhala ma silinda opachikidwa kamodzi ndikukweza kukhala ma Vac rolls, kuphatikiza mabokosi okhazikika bwino ndi zida zopumira m'thumba, kuchuluka kwa kusweka kwa ma paperweb kunachepetsedwa ndi 60%, nthawi yosakonzekera yogwira ntchito inachepetsedwa ndi 30%, ndipo popanga 70~90g/m² corrugating base paper pa liwiro la 1000m/min, kusweka kwapakati kwa mapepala pamwezi kunali kokha nthawi 10, ndipo mphamvu yopangira inawonjezeka ndi 3%.

Poyerekeza ndi masilinda achikhalidwe oumitsira ndi nthunzi, malo ogwirira ntchito a masilinda a VAC oumitsira ndi osavuta kukhazikika pa ukonde wa pepala komanso kuumitsa kothandiza, ndipo awiriwa amapanga ubale wogwirizana komanso wogwirizana. Ponena za gwero la kutentha, masilinda a VAC oumitsira alibe kapangidwe kotenthetsera komangidwa mkati ndipo amadalira mphamvu yoipa kuti agwire ntchito, pomwe masilinda a VAC oumitsira ndi nthunzi amagwiritsa ntchito nthunzi ngati gwero la kutentha ndipo amagwira ntchito yotumiza kutentha ndi kuumitsa; ponena za kapangidwe ka pamwamba, masilinda a VAC oumitsira amagwiritsa ntchito mapangidwe ozungulira kapena obowoledwa, pomwe masilinda a VAC oumitsira ndi nthunzi nthawi zambiri amakhala ndi malo osalala okhala ndi chrome kapena chitsulo chopangidwa ndi chitsulo; pankhani ya kuyang'ana kogwira ntchito, masilinda a VAC oumitsira amayang'ana kwambiri kukhazikika kwa ukonde wa pepala, kuchotsa chinyezi chothandiza, komanso kuchepetsa zolakwika za mapepala, pomwe masilinda a VAC oumitsira ndi nthunzi amayang'ana kwambiri kusamutsa kutentha kogwira mtima kuti amalize kutulutsa chinyezi chachikulu mu ukonde wa pepala. Ponena za mphamvu youma, mphamvu youma ya silinda imodzi youmitsira ndi yochepa, ndipo masilinda a Vac pafupifupi 2-3 ndi ofanana ndi silinda imodzi yokhazikika youmitsira. Chifukwa chake, pakugwiritsa ntchito zinthu zenizeni, ndikofunikira kufananiza mwasayansi kuchuluka kwa ma Vac rolls ndi ma steam dryer silinda malinga ndi liwiro la galimoto komanso kuchuluka kwa mapepala kuti pakhale mgwirizano pakati pa magwiridwe antchito ndi mtengo.

Pogwiritsa ntchito njira yopititsira patsogolo "dual carbon" komanso kusintha kwanzeru komanso kosunga mphamvu kwa makampani opanga mapepala, kugwiritsa ntchito ma VAC dryer rolls kuyeneranso kuganizira za kuwongolera kugwiritsa ntchito mphamvu ndi kukonza bwino. Ma VAC dryer rolls amafunika kuthandizira makina opumira mpweya, ndipo poyerekeza ndi njira zachikhalidwe zowumitsa, ndalama zomwe amagwiritsa ntchito komanso kukonza zimakhala zokwera pang'ono, koma kusunga mphamvu ndi kuchepetsa kugwiritsa ntchito mphamvu zitha kuchitika kudzera mu kukonza kwaukadaulo. Mwachitsanzo, Lee & Man Paper adakweza bokosi la SymRun vacuum panthawi yosintha, kuchepetsa katundu wa fan yopereka mpweya ndi 30% pomwe akukweza digiri ya vacuum; Valmet Finland idakonza mtunda pakati pa ma Vac rolls ndi ma silinda owumitsa kudzera mu 3D scanning ndi modeling, kuonjezera ngodya ya wrap dryer ya pa intaneti, kuchepetsa chiwerengero cha ma blowers ndi mapaipi a mpweya, ndikuchepetsa ndalama zomwe amagwiritsa ntchito komanso kukonza. Pakukonza tsiku ndi tsiku, ndikofunikira kupukuta mabowo ndi mizere ya Vac roll ndi mpweya wopanikizika kuti mupewe kutsekeka, kuyang'ana momwe vacuum sealing imagwirira ntchito komanso kutentha kwa bearing nthawi yomweyo, ndikuwongolera digiri ya vacuum mkati mwa zofunikira za ndondomekoyi. Kugwirizanitsa ndi makina opumira mpweya wabwino m'thumba komanso makina opopera kutentha kungathandize kwambiri kuti kuumitsa kukhale kogwira ntchito bwino komanso kuchepetsa kugwiritsa ntchito nthunzi.

Ndi kupititsa patsogolo kosalekeza kwa ukadaulo wa makina osindikizira mapepala othamanga kwambiri komanso kufunikira kwakukulu kwa zinthu zamapepala apamwamba, kubwerezabwereza kwaukadaulo kwa mipukutu yowuma ya VAC kudzathandizanso kulondola, kusunga mphamvu, ndi nzeru. Mtsogolomu, mothandizidwa ndi ukadaulo wapamwamba monga kuyerekezera kwa CFD ndi kuwerengera manambala, kapangidwe ka dzenje ndi kapangidwe ka chipinda cha vacuum cha mipukutu ya Vac zitha kukonzedwanso kuti ziwongolere kulondola koyipa kwa kupanikizika ndi digiri yolumikizirana ndi mapepala; kuphatikiza ndi kuzindikira kwanzeru ndi kusanthula kwakukulu kwa deta, kulamulira kwamphamvu kwa digiri ya vacuum kumatha kuchitika kuti kugwirizane ndi zosowa zopangira mitundu yosiyanasiyana ya mapepala ndi liwiro losiyana la magalimoto; nthawi yomweyo, kudzera mukusintha kwa zinthu ndi kukonza kapangidwe kake, kugwiritsa ntchito mphamvu ndi kuvala kwa zida kumatha kuchepetsedwa, ndipo moyo wautumiki ukhoza kukulitsidwa. Monga "chida chokhazikika bwino" cha makina osindikizira mapepala othamanga kwambiri, mipukutu yosindikizira ya VAC sikuti imangothetsa mavuto ambiri achikhalidwe pakuuma pansi pa mikhalidwe yogwirira ntchito mwachangu, komanso imathandiza mabizinesi opanga mapepala kukonza mtundu wazinthu ndikuwonjezera magwiridwe antchito, ndikuyika mphamvu yatsopano pakukula kwabwino kwa makampani opanga mapepala.