Nzira yekugadzira A4 kopi pepa

A4 kopi yemapepa emuchina unovawo mutsara wekugadzira mapepa unewo zvikamu zvakasiyana;

1- Nzira yekuyerera chikamu chinogadzirisa kuyerera kweyakagadzirira pulp musanganiswa kugadzira bepa rine huremu hwakapihwa. Huremu hwehwaro hwebepa huremu hwesikweya mita mumagiramu. Kuyerera kwe pulp slurry iyo yakanyungudutswa ichacheneswa, yakaongororwa mune slotted skrini uye inotumirwa kumusoro bhokisi.

2- Musoro bhokisi rakaparadzira kuyerera kwepulp slurry zvakanyanya kufanana pahupamhi hwewaya yemuchina wepepa. Kuitwa kwebhokisi remusoro kunotarirwa mukuvandudzwa kwehutano hwekupedzisira chigadzirwa.

3- Wire Chikamu; Pulp slurry inobudiswa zvakafanana pawaya inofamba uye iyo waya iri kufamba yakananga kumagumo echikamu chewaya, inenge 99% yemvura inodonhedzwa uye dandemutande rine kuoma kwe20-21% rinoendeswa kuchikamu chekutsikirira. kuwedzera kudiridza.

4- Press Chikamu; The press section dewaters the web mberi kuti isvike pakuoma kwe44-45%. The dewatering process in mechanical without using any thermal energy. Chikamu chekudhinda chinowanzo shandisa 2-3 nips zvichienderana nehunyanzvi hwekutsikisa uye kumisikidzwa.

5- Dryer Chikamu: Dryer chikamu chekunyora, kudhinda uye kukopa mapepa emuchina wakagadzirwa muzvikamu zviviri, per-dryer uye after-dryer chimwe nechimwe chichishandisa akati wandei macylinders anoshandisa saturated steam semhepo yekudziya. Wet web yakaomeswa kusvika 92% kuoma uye iyi dandemutande yakaoma ichange iri pamusoro saizi 2-3 magiramu/skweya mita/padivi repepa sitachi rakagadzirwa mukicheni yeglue. Webhu yemapepa mushure mekuyera ichange iine 30-35% yemvura. Iyi dandemutande yakanyorova inozoomeswa zvakare mu after-dryer kusvika 93% dryness yakakodzera kushandiswa kwekupedzisira.

6‐ Calendaring: Pepa rakabuda mushure mekuomesa harikodzeri kudhinda, kunyora nekukopa nekuti pepa repamusoro harina kutsetseka zvakakwana.Calendaring inoderedza kushata kwepepa uye inovandudza kumhanya kwayo mukudhinda nekukopa michina.

7- Kudzungudza; Pakupera kwemuchina wepepa, dandemutande rakaomeswa repepa rinokuvadzwa kutenderedza simbi inorema inosvika 2.8 metres muhupamhi. Bepa riri pamupumburu uyu richasvika matani makumi maviri. Iyi jumbo bepa roll winding machine inonzi pope reeler.

8- Rewinder; Upamhi hwebepa pane master paper roll inenge yakafara yewaya yemuchina wemapepa. Iyi master paper roll inoda kuchekwa kureba nehupamhi sekurairwa nekupedzesera kushandiswa. Iri ndiro basa re rewinder kupatsanura jumbo roll mumapumburu madiki.