Pūnaha Dryer Rotary Infrared + SSP
Ko te polymerization toka-waa (SSP) te hangarau matua mo te "whakapai ake i te kounga" me te "recycling matomato" i roto i te mekameka ahumahi PET.
Ko te LIANDA MACHINERY te whakauru hohonuWHAKAMARORO INFRARED ROTARY DRYER me te punaha SSPki te hanga i tetahi otinga whakauru o "Te tango makuku pai - Te piki ake o te pokey - Te mahi iti-painga". Ma tenei ka tino whakapai ake i nga ahuatanga tinana rPET, te pumau o te waiariki me te ma matū. Ko tenei hangarau he mahi e kore e taea te whakakapi i roto i te mekameka ahumahi PET (ina koa te hangarua o te kounga teitei me te whakaputa hua tino mahi).
Mena kei te hiahia koe ki te mohio ki nga tawhā tukanga motuhake, whirihoranga taputapu ranei, me waea atu ki a Lianda Machinery kia whiwhi otinga hangarau kua whakaritea
Tukatuka-mua
Te whakamaroke: Ko te PET he hygroscopic me tango e te IRD(I muri i te IRD, te makuku whakamutunga o te PET ≤ 50 ppm) hei karo i te hauwai me te paheketanga i te wera nui.
Te whakamaaramatanga: Ko nga pire PET e whakamaarama ana e te IRD (ko te tohu tioataata he tata ki te 30-40%) hei aukati i nga pire PET kia piri, kia rewa ranei i roto i nga pāmahana teitei o muri mai, me te whakarato i te taiao pumau mo nga tauhohenga polycondensation.
Wāhanga Mārō Polycondensation Reaction Stage
➢ Nga tikanga tauhohenga:
Te pāmahana: te whakahaere i te 200–240 ℃ (kei raro iho i te ira whakarewa PET 250–260 ℃, kia pakari tonu).
Te rere hau korehau/kore: ka whakaurua te hauota ka kumea te korehau ki te tango i te tauhohenga hua ethylene glycol (EG) me te whakatairanga i te tauhohenga polycondensation ki te ahunga pai.
➢ Tauhohenga matū:
Ko te hydroxyl (-OH) me te carboxyl (-COOH) i te pito o te mekameka ngota PET ka uru ki te tauhohenga condensation ki te hanga i te here ester (-COO-), i te wa e tuku ana te ethylene glycol (EG), kia toro haere tonu te mekameka ngota me te piki haere o te taumaha ngota (intrinsic viscosity IV).
Ko te Miihini Lianda e whakauru ana i te whakamaroke infrared (IRD) me te punaha SSP, ka tere me te taurite te whakamahana i te rauemi na roto i nga hihi infrared, ka whakapoto i te wa o mua i te maimoatanga, me te arotau i te pai o te whakawhiti papatipu i roto i te tauhohenga wahanga totoka, kia whai hua ai te punaha katoa ki te tino pai me te penapena hiko, te kaha tukatuka nui, me te pumau o nga hua, he mea tino pai mo te hangarua o te PET kounga teitei.
Ko te LIANDA MACHINERY e whakauru ana i te whakamaroke karaihe Infrared (IRD) me te punaha SSP, e whakamahi ana i te ngaru infrared ki te tere me te whakamahana i te rauemi, te whakapoto i te wa i mua i te maimoatanga, me te arotau i te kaha o te whakawhiti papatipu i roto i te tauhohenga o te waahanga totoka, ka tino pai te punaha katoa, me te kaha o te tukatuka me te pumau o te hua. He mea tino pai mo te hanga-nui-te kounga teitei o te PET hangarua.
Mena kei te hiahia koe ki etahi atu korero hangarau, ki nga otinga kua whakaritea ranei, ka taea e koe te whakapiri atu ki a Lianda Machinery mo te tautoko ngaio
I roto i te whakakotahitanga me te hangarau whakamaroke infrared, ka mohio ia ki te whakaurunga o te "whakamohoao + whakamaroke + te whakarei ake i te pokey", te whakatairanga i te hangarua kati-koropiko o PET.
| Painga | Mahi Tauwhāiti |
| Te piki o te taumaha ngota | Ka tino piki ake te viscosity intrinsic (IV) ka pai ake te kaha miihini (te kaha tensile, modulus elastic) e 30-50%. |
| Te arotautanga pūmautanga wera | Ko te ira whakarewa (Tm) he paku whakanuia (mo te 5-10 ℃), ka pai ake te kirikiriata, ka whakanuia te parenga teitei o te pāmahana (he pai mo te whakamahana o te pounamu wera). |
| Kua pai ake te pure matū | Ka tango i te toenga monomers (pērā i te formaldehyde, acetaldehyde) me te oligomers (ka heke iho te ihirangi ki te iti iho i te 50 ppm), ka tutuki i nga paerewa kai. |
| Nga taonga whakahaere ngawari | Ka karohia e nga tauhohenga-a-whaanui te whakahekenga waiariki o te waiariki na te whakarewatanga o te pāmahana-nui, he tino pai mo te whakahokinga mai o te kounga o te PET hangarua. |
| Te ngawari o te tukanga | Ko te pokey o te hua whakamutunga ka taea te whakahaere tika ma te whakatika i te pāmahana, te wa me te tohu korehau, na reira ka tutuki nga momo hiahia. |
Taupānga
PET Tuhinga o mua
● Te hanga pounamu maramara teitei:
Ka whakanui ake i te riterite o te peera o te PET, ka whakaiti i te pakaru o te tinana pounamu, he pai mo nga inu warowaiha, ipu whakapaipai, aha atu.
● Whanaketanga pounamu atete-wera:
Ma te SSP, ka piki ake te uara IV ki runga ake i te 0.85 dL/g, e tika ana mo nga ipu inu wera (penei i te kapi mo te tii inamata, kawhe).
Whakahoutanga kounga PET hangarua
● Te hangarua o nga tawerewere pounamu hangarua:
Ko nga tawerewere pounamu PET i muri i te kaihoko ka tukuna ki te tukanga whakauru o te " whakamaroke - whakamaroke - whakarei ake i te pokey" ki te tango i te EG，Acetaldehyde, VOC me te whakahoki i te pokey, ka whakahoki mai ki nga tono kai-a-ahumahi (penei i te muka, pepa).
● Uara ohaoha porohita:
Ka honoa me te hangarau whakamaroke infrared (IRD), "te whakamaroketanga iti-kaha + te whakarei ake i te pokey" ka tutuki hei whakatairanga i te hangarua kati-koropiko o PET
Hangarau kirihou mara
● Te whakarite PET tino mahi:
Te whakaputanga o te PET kaha-nui (IV>1.0 dL/g) mo te whakamahi i nga waahanga miihini (penei i nga taputapu, i nga peera), i nga whare hiko me te hiko, me etahi atu, hei whakakapi i nga kirihou miihini tuku iho.
Hua Tino
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PLA Crystallizer whakamaroke
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Te whakamaroke whakamaroke whakatioatanga Pokarekare / PET Masterbatch
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PET Flake/parapara dehumidifier crystallizer
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Te whakamaroke karaihe infrared PET Granulation
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Pūnaha tawerewere IR-Haumaru — Te Whakakore PET mo te takai whakapiri kai tika
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PLA PET thermoforming Rau raina tangohanga