granulation Nrụgharị Plastic dị elu: Nkà na ụzụ, Akụrụngwa na Zhuoyue Extruder Solution

N'oge nke mmụba mmata gburugburu ebe obibi na amụma nchekwa akụ siri ike, Ntugharị plastik abụrụla ihe dị mkpa na-elekwasị anya maka ụlọ ọrụ n'ụwa niile. N'ime teknụzụ imegharị plastik dị iche iche, mkpofu plastic recycling granulation pụtara dị ka ihe bara uru, oru oma, yana usoro akụ na ụba nke na-agbanwe ihe ndị a tụfuru rọba ka ọ bụrụ granules a na-emegharịgharị. Enwere ike ịhazigharị granules ndị a megharịrị ka ọ bụrụ ngwaahịa rọba ọhụrụ, na ọkwa arụmọrụ tụnyere ndị sitere na ihe ndị na-amaghị nwoke, si otú a na-aghọta ezi mgbasa ozi na ibelata ibu gburugburu ebe obibi nke plastic mkpofu na-akpata.

Zhuoyue, a na-eduga emeputa nke extrusion akụrụngwa, na-agba mbọ ịnye ahịrị mmepụta granulation zuru oke maka ụdị plastik mkpofu niile, gụnyere PP (Polypropylene), PE (Polyethylene), LDPE (Polyethylene dị obere), PET (Polyethylene terephthalate), PS (Polystyrene), ABS (Acrylonitrile Butadiene Styrene), na ndị ọzọ. Site na teknụzụ extrusion dị elu yana nka dị omimi na imegharị plastik, Ahaziri ndị na-apụ apụ nke Zhuoyue iji zute ihe ịma aka pụrụ iche nke mkpofu rọba, na-ebuga nke ọma, ike-azọpụta, na ihe ngwọta dị elu maka ụlọ ọrụ na-arụ ọrụ nrụgharị plastik.

1. Nkọwa nke ihe mkpofu plastik imegharị granulation

Ntugharị ihe mkpofu plastik bụ usoro pụrụ iche nke na-agbanwe ụdị plastik mkpofu dị iche iche - dị ka karama rọba, ihe nkiri, akpa, scraps si mmepụta ahịrị, na ihe mkpofu rọba n'ihu ahịa - n'ime otu, granules plastik dị elu site na usoro ọgwụgwọ igwe na thermal. Ndị a recycled granules, A makwaara dị ka regranulates ma ọ bụ pellets plastik emegharịrị, enwere ike iji ya mee ihe ozugbo na ịkpụzi injection, extrusion, ịfụ ịkpụzi, na ụzọ nhazi plastik ndị ọzọ iji mepụta ngwaahịa ọhụrụ, sitere na ihe nkwakọ ngwaahịa na ihe ndị e ji arụ ụlọ ruo n'akụkụ ụgbọ ala na ihe ndị dị mkpa kwa ụbọchị.

Isi uru nke granulation plastic recycling granulation bụ n'ike ya iji dozie ihe ịma aka abụọ nke mkpofu plastik na ụkọ akụrụngwa.. N'adịghị ka ụzọ mkpofu rọba dị ka mkpofu ahịhịa na ịgba ọkụ, nke na-ebute oke ihe egwu gburugburu ebe obibi, recycling granulation na-enweta ezi ihe eji emegharị ihe:

Nchekwa gburugburu ebe obibi: Idoju ihe mkpofu rọba na-eburu akụ ala bara uru ma nwee ike ibute mmetọ ala na ala mmiri, dị ka plastik bụ ndị na-abụghị biodegradable na ike ịhapụ ihe ndị na-emerụ ahụ ka oge na-aga. Nsure ọkụ, n'akụkụ aka nke ọzọ, na-ebupụta gas na-egbu egbu (dị ka dioxins na carbon monoxide) na obere ihe, na-enye aka na mmetọ ikuku na okpomoku zuru ụwa ọnụ. Ntugharị granulation na-ebelata oke mkpofu rọba na-abanye n'ebe a na-ekpofu ahịhịa na ihe nsure ọkụ, ibelata mmetọ gburugburu ebe obibi na ikuku carbon.
Nchekwa akụrụngwa: A na-enweta plastik site na mmanụ ọkụ anaghị emeghari ohuru (dị ka mmanụ na gas). Site n'iji plastik emeghari ihe mkpofu n'ime granules enwere ike iji ya mee ihe, A na-ebelata ọchịchọ maka ihe ndị na-amaghị nwoke plastik, ichekwa akụ fosil bara uru yana ibelata oriri ike jikọtara ya na mmepụta plastik na-amaghị nwoke. A na-eme atụmatụ na imegharị otu tọn rọba ga-echekwa ihe ruru 7.4 barel mmanụ ma belata ikuku carbon site 1.5 tọn.
Uru akụ na ụba: Granules rọba emegharịrị dị ọnụ ala karịa ihe ndị na-amaghị nwoke rọba, na-enye nnukwu ego maka ndị nrụpụta. Maka ụlọ ọrụ imegharị ihe, usoro nchịkọta, nhazi, na plastik mkpofu granulating nwere ike ị nweta uru kwụsiri ike, ịmepụta ohere akụ na ụba ọhụrụ na ọnọdụ ọrụ. Na mgbakwunye, ọtụtụ mba na mpaghara na-enye agbamume iwu (dị ka inye aka na nkwụsịtụ ụtụ isi) maka ụlọ ọrụ na-emegharị plastik, na-emewanyewanye ikike akụ na ụba nke recycling granulation.

Agbanyeghị, Ogo nke granules plastik emegharịrị na arụmọrụ nke ngwaahịa ikpeazụ emegharịrị na-adabere nke ukwuu na usoro granulation na akụrụngwa eji.. Ihe ndị dị ka ụdị na ịdị ọcha nke plastic mkpofu, arụmọrụ nke nhazi na ihicha, okpomọkụ na shiee akara n'oge extrusion, na imewe nke extruder niile nwere mmetụta dị ịrịba ama na njirimara ngwaahịa ikpeazụ. Ya mere, na-emepe emepe dị mfe, adaba, oru oma, ike-azọpụta, gburugburu ebe obibi enyi na enyi, na usoro granulation nke nwere ike ime ka akụ na ụba bụrụ ihe a na-elekwasị anya na nyocha na mmepe na ụlọ ọrụ na-emegharị plastik.

1.1 Njirimara ndị dị mkpa nke granules rọba emegharịrị

Arụmọrụ nke granules rọba emegharịrị nwere njikọ chiri anya na ụdị plastik mkpofu, ogo nke mmetọ, na usoro granulation. N'izugbe, granules emegharịrị dị elu kwesịrị ịnwe njirimara ndị a:

Oke urughuru Uniform: Na-agbanwe agbanwe urughuru size ana achi achi kwụsiri ike nri n'oge ụdi nhazi (dị ka injection ịkpụzi na extrusion), imeziwanye ịdị n'otu na ịdị mma nke ngwaahịa ikpeazụ. Nha urughuru granules emegharịrị na-adịkarị n'etiti 2mm na 5mm, dabere na ngwa chọrọ.
Mmetọ dị ala: Ihe mmetọ dị ka unyi, uzuzu, iberibe ígwè, akwụkwọ, na ihe ndị ọzọ na-abụghị plastik nwere ike imetụta arụmọrụ nke granules emegharịrị na ngwaahịa ikpeazụ. Ya mere, nhazi nke ọma na ihicha plastik mkpofu dị mkpa iji hụ na ọkwa mmetọ dị ala.
Ezi Plasticity na Processability: Granules emegharịrị kwesịrị inwe ezigbo agbaze na ike ịgbaze, na-enye ohere maka nhazi dị mfe n'ime ngwaahịa ọhụrụ na-enweghị emetụta nhazi nhazi ma ọ bụ àgwà ngwaahịa. Nke a na-achọ njikwa nke ọma nke ọnọdụ okpomọkụ na nha nha n'oge usoro granulation iji zere mmebi dị ukwuu nke ihe owuwu molekụla plastik..
Ngwongwo igwe kwụsiri ike: Ike ike, elongation na ezumike, mmetụta ike, na ndị ọzọ n'ibu Njirimara nke recycled granules kwesịrị ịdị nso dị ka o kwere nke ndị na-amaghị nwoke ihe, n'ịhụ na ngwaahịa ikpeazụ emegharịrị mezuru ụkpụrụ arụmọrụ achọrọ.
Ọdịnaya dị ala: Ọdịnaya dị elu nke mmiri dị na granules emegharịrị nwere ike ibute ntụpọ dị ka afụ na mgbawa na ngwaahịa ikpeazụ n'oge nhazi.. Ya mere, A na-achọkarị usoro ihicha n'oge usoro granulation iji belata ọdịnaya mmiri na ọkwa a na-anabata (na-adịkarị n'okpuru 0.5%).

1.2 Ụdị plastik ndị na-ekpofu ihe na-emekarị maka granulation

Enwere ike ịmegharị ihe fọrọ nke nta ka ọ bụrụ ụdị plastik niile nke thermoplastic na granulated, mgbe ị na-etinye plastik na thermosetting (nke a na-apụghị ịgbaze ma megharịa ya) adịghị mma maka recycling granulation. Ụdị plastik mkpofu ndị a na-ejikarị eme ihe na granulation gụnyere:

PP (Polypropylene): Thermoplastic a na-ejikarị eme ihe yana ezigbo nguzogide kemịkalụ, n'ibu Njirimara, na nhazi usoro. Ihe mkpofu nkịtị PP gụnyere bọket rọba, akpa, okpu, na mmepụta scraps. A na-ejikarị granules PP emegharịrị emegharị ka ọ na-emepụta ọkpọkọ rọba, akụkụ akpaaka, na nkwakọ ngwaahịa.
PE (Polyethylene): Kewara n'ime LDPE (Polyethylene dị obere) na HDPE (Polyethylene dị njupụta dị elu). A na-ejikarị LDPE eme ihe na fim plastik, akpa, na karama, ebe HDPE na-eji na gbọmgbọm, ọkpọkọ, na arịa. PE granules emegharịrị dị mma maka imepụta ihe nkiri plastik, ọkpọkọ, na ngwaahịa akpụ akpụ ntụtụ.
PET (Polyethylene terephthalate): A transperent, rọba siri ike nke a na-ejikarị na karama ihe ọṅụṅụ, nkwakọ nri, na ngwaahịa fiber. A na-eji granules PET emegharịrị emegharị n'ọtụtụ ebe na mmepụta nke eriri polyester, karama plastik, na nkwakọ ngwaahịa.
PS (Polystyrene): Dị na isiike (dị ka iko ụfụfụ, nri akpa, na ihe egwuregwu ụmụaka) na ụfụfụ (EPS, polystyrene gbasaa) ụdị. Enwere ike iji granules PS emegharịrị mee ihe iji mepụta ihe egwuregwu ụmụaka, ihe eji achọ mma, na ngwaahịa ụfụfụ.
ABS (Acrylonitrile Butadiene Styrene): Plastic na-arụ ọrụ dị elu nke nwere mmetụta dị mma, isi ike, na okpomọkụ iguzogide. ABS na-ekpofukarị ihe gụnyere shei rọba nke ngwaahịa eletrọnịkị, akụkụ akpaaka, na ihe egwuregwu ụmụaka. A na-eji granules ABS emegharịrị emegharị iji mepụta shei ngwaahịa eletrọnịkị, akụkụ akpaaka, na ihe ndị a kpụrụ akpụ ntụtụ.

Emebere ahịrị mmepụta granulation nke Zhuoyue iji dozie plastik mkpofu niile a kpọtụrụ aha n'elu., na nhazi akụrụngwa ahaziri ahazi iji mezuo ihe achọrọ nhazi nke ụdị plastik dị iche iche.

2. Usoro nhazigharị ihe mkpofu rọba

Usoro nhazigharị ihe mkpofu rọba na-enwekarị ọtụtụ isi nzọụkwụ: mkpofu plastic nchịkọta na nhazi, nhicha, na-etipịa, ihicha, granulation extrusion, jụrụ oyi, na ịcha. Nzọụkwụ ọ bụla na-arụ ọrụ dị mkpa n'ịhụ na ịdị mma nke granules emegharịrị ikpeazụ. Ụdị usoro a kapịrị ọnụ nwere ike ịdịgasị iche dabere n'ụdị plastik mkpofu, ogo nke mmetọ, na àgwà a chọrọ nke granules emegharịrị.

2.1 Nchịkọta na nhazi

Nzọụkwụ mbụ n'ime usoro nhazigharị granulation bụ nchịkọta na nhazi nke plastik mkpofu. A na-esi n'ebe dị iche iche anakọta plastik mkpofu, gụnyere ezinụlọ, ụlọ ọrụ, ụlọ ọrụ azụmahịa, na mmepụta ahịrị. N'ihi ụdị dị iche iche nke plastik mkpofu na ọnụnọ nke mmetọ, nhazi dị mkpa iji hụ na ịdị mma nke granules emegharịrị.

Enwere ike iji aka mee nhazi nhazi. Nhazi akwụkwọ ntuziaka dabara adaba maka obere ọrụ imegharị ihe yana gụnyere ikewapụ ụdị plastik dị iche iche, na-ewepụ ihe ndị na-adịghị na plastik (dị ka ígwè, akwụkwọ, iko, na organic mkpofu), na nhazi plastik site na agba na mma. Nhazi igwe, n'akụkụ aka nke ọzọ, na-arụ ọrụ nke ọma ma dabara adaba maka nnukwu ọrụ, iji teknụzụ dị ka nkewa njupụta (sink-ese n'elu nkewa), nkewa magnetik, nkewa electrostatic, na nhazi infrared iji kewaa ụdị plastik dị iche iche ma wepụ ihe ndị na-emerụ emerụ.

Nhazi nke ọma dị oke mkpa n'ihi na ịgwakọta ụdị plastik dị iche iche nwere ike ime ka mbelata dị ukwuu na arụmọrụ nke granules a na-emegharịgharị.. Ọmụmaatụ, Ịgwakọta PP na PET nwere ike ime ka oge nkewa n'oge extrusion, na-eme ka plasticity na-adịghị mma na ihe eji arụ ọrụ nke granules.

2.2 Nhicha

Mgbe hachara, A na-ehicha ihe ndị na-emebi emebi iji wepụ ihe ndị na-emerụ emerụ n'elu dịka unyi, uzuzu, mmanụ, griiz, nri fọdụrụnụ, na akara. Usoro nhicha na-agụnye ọtụtụ usoro:

Tupu ihicha: Na-ewepu nnukwu mmetọ (dị ka akara, okpu, na iberibe ígwè) na unyi siri ike site na ịsa ahịhịa, ịfụ, ma ọ bụ aka ịhọpụta.
Ịsacha: Ịkwanye plastik mkpofu na ngwọta ihicha (na-emekarị mmiri na ncha ma ọ bụ alkali) iji wepụ mmanụ, griiz, na ihe fọduru nri. Enwere ike iji mkpasu iwe ma ọ bụ ihicha ultrasonic kwalite mmetụta ihicha.
Ntucha: Jiri mmiri dị ọcha na-asacha plastik ndị a kpochara iji wepụ ihe ngwọta nhicha ọ bụla fọdụrụnụ na mmetọ.
Na-agbapụ mmiri: Iji centrifuges na-ewepụ mmiri gabigara ókè na plastik a kpochara, igwe dewatering, ma ọ bụ ihicha ikuku iji belata ọdịnaya mmiri ma kwado nhazi na-esote.

Mmetụta ihicha na-emetụta kpọmkwem àgwà nke granules emegharịrị. Nhicha ezughị oke nwere ike ibute mmetọ nke granules, emetụta ha processability na n'ibu Njirimara. Ọmụmaatụ, mmanụ na mmanụ griiz nwere ike ime ka adhesion na-adịghị mma n'etiti ụmụ irighiri rọba n'oge extrusion, na-eme ka ike ike dị ala nke granules.

2.3 Na-etipịa

Mgbe ihicha na dewatering, A na-etipịa plastik ndị na-abaghị uru n'ime obere iberibe (flakes ma ọ bụ iberibe) na-eji ihe nhịahụ. Ịkụpịa na-enyere aka ịbawanye elu nke plastik, na-enyere aka ịgbaze na ngwakọta n'oge usoro extrusion. Ọ na-enyekwara aka iwepu obere mmetọ ọ bụla nke nwere ike itinye n'ime rọba.

Ụdị ihe nhịahụ eji eme ihe na-adabere n'ụdị na ụdị nke plastik mkpofu. Ụdị ndị na-egwepịa ihe ndị a na-emekarị gụnyere ndị na-ahịhịa agba, hama crushers, agụba crushers, na granulators. Maka plastik na-agbanwe agbanwe (dị ka ihe nkiri plastik na akpa), A na-ejikarị igwe agụba eme ihe, ebe maka plastik siri ike (dị ka karama rọba na arịa), hama crushers ma ọ bụ ndị na-agba agba ka dabara adaba. Ogo nke iberibe rọba ndị a gbajiri agbaji na-abụkarị n'etiti 5mm na 20mm, dabere na ụdị extruder eji na nha granule chọrọ.

2.4 Ịkpọ nkụ

Ọbụna mgbe dewatering, Iberibe rọba ahụ e gwepịara egwepịa ka nwere ike ịnwe mmiri ụfọdụ. Ọdịnaya dị elu nke mmiri nwere ike ibute ntụpọ dị ka afụ, mgbawa, na adịghị mma elu mma na recycled granules n'oge extrusion. Ya mere, nzọụkwụ ihicha dị mkpa iji belata mmiri dị n'ime iberibe plastik a gwepịara egwepịa ruo ọkwa a na-anabata (na-adịkarị n'okpuru 0.5%).

Ụzọ ihicha ndị a na-emekarị gụnyere ihicha ikuku ọkụ, agụụ ihicha, na infrared ihicha. ihicha ikuku na-ekpo ọkụ bụ usoro a na-ejikarị eme ihe, nke gụnyere ịfefe ikuku ọkụ (na okpomọkụ nke 80-120 ° C) site n'iberibe rọba ndị ahụ e gwepịara egwepịa iji wepụ mmiri ahụ. Oge ihicha na okpomọkụ na-adabere n'ụdị plastik na ọdịnaya mmiri mbụ. Ọmụmaatụ, PET na-enwe mmetụta maka iru mmiri ma na-achọ okpomọkụ ihicha elu (120-160Celsius C) na ogologo oge ihicha iji hụ na mwepụ mmiri zuru oke.

2.5 Extrusion granulation

Mkpịsị aka nke extrusion bụ isi nzọụkwụ na usoro mkpogharị plastik mkpofu. Ọ na-agụnye ịgbaze, ịgwakọta, na homogenizing na Fikiere anuahade plastic iberibe iji extruder, mgbe ahụ, extruding na plastic gbazere site a anwụ na-etolite na-aga n'ihu strands, nke a na-emesị mee ka ọ dị mma ma bee n'ime granules edo.

The extruder bụ isi akụrụngwa na nke a nzọụkwụ, na arụmọrụ ya na-ekpebi kpọmkwem àgwà na arụmọrụ nke usoro granulation. Enwere isi ihe abụọ nke extruders eji na mkpofu plastic recycling granulation: ejima-skru extruders na otu-skru extruders. Ụdị ọ bụla nwere uru nke ya ma dị mma maka ụdị plastik dị iche iche, dị ka nkọwa zuru ezu na Nkebi 3.

N'oge extrusion granulation, Ọ dị mkpa ka a chịkwaa ọtụtụ usoro usoro igodo:

Okpomọkụ: The temperature of the extruder barrel and die is critical for melting the plastic and ensuring good mixing and homogenization. Different types of plastics have different melting points, and the barrel temperature is typically set 10-30°C above the melting point of the plastic to ensure complete melting. Ọmụmaatụ, the barrel temperature for PP is usually 170-220°C, while for PET it is 260-280°C. Excessively high temperatures can cause thermal degradation of the plastic, leading to a reduction in the mechanical properties of the recycled granules, while excessively low temperatures can result in incomplete melting and poor mixing.
Shear Rate: The shear rate is determined by the screw speed and the screw design. A suitable shear rate helps to homogenize the molten plastic, disperse any remaining contaminants, and improve the plasticity of the granules. Agbanyeghị, excessively high shear rates can cause mechanical degradation of the plastic molecular structure, leading to reduced performance.
Ịghasa Ọsọ: The screw speed affects the throughput, melting efficiency, and mixing quality. Higher screw speeds can increase the throughput but may reduce the melting and mixing efficiency, while lower screw speeds can improve the mixing quality but reduce the throughput. The optimal screw speed depends on the type of plastic, the extruder type, and the desired granule quality.
Nrụgide Extrusion: The extrusion pressure is determined by the die design, ịghasa ọsọ, and material viscosity. Stable extrusion pressure ensures uniform strand formation and consistent granule size. Excessively high pressure can cause die blockage, while excessively low pressure can result in uneven strands.

2.6 Ịjụ oyi na ịkpụ

Mgbe extrusion site na-anwụ anwụ, A na-eme ka eriri plastik na-aga n'ihu na-adị mma iji mee ka ha sie ike. Enwere ike ime oyi site na iji ikuku jụrụ oyi ma ọ bụ mmiri jụrụ oyi. Mmiri jụrụ oyi na-arụ ọrụ nke ọma ma na-ejikarị arụ ọrụ granulation buru ibu, gụnyere ịfefe eriri ndị ahụ site na tank mmiri ma ọ bụ nfe mmiri iji mee ka ha dị jụụ ngwa ngwa n'ime ụlọ. Ikuku ikuku dị mma maka obere ọrụ ma ọ bụ maka plastik ndị na-emetụ mmiri (dị ka ụfọdụ plastik injinia).

Ozugbo eriri ndị ahụ dị jụụ ma sie ike, a na-egbutu ha n'ime granules otu site na iji pelletizer. A na-etinyekarị pelletizer na ọpụpụ nke sistemu jụrụ oyi ma enwere ike ịhazigharị ya iji jikwaa ogologo granules. (na-adịkarị n'etiti 2mm na 5mm). Ụdị pelletizers ndị a na-ahụkarị gụnyere strand pelletizers, pelletizers mgbanaka mmiri, na pelletizers n'okpuru mmiri. Strand pelletizers are the most widely used type for waste plastic recycling granulation, as they are simple in structure, easy to operate, and suitable for most types of plastics.

2.7 Screening and Packaging

After cutting, the recycled granules are screened using a vibrating screen to remove any oversized or undersized granules, ensuring uniform particle size. The screened granules are then dried again (if necessary) to remove any moisture absorbed during cooling, then packaged into bags or bulk containers for storage and transportation.

Packaging is an important step to prevent contamination and moisture absorption of the recycled granules. The packaging materials should be moisture-proof and clean, and the granules should be stored in a dry, ventilated, and clean warehouse to maintain their quality.

3. Nhọrọ Extruder maka Mkpofu Plastic Recycling Granulation

Dị ka e kwuru na mbụ, extruder bụ isi akụrụngwa na plastic recycling granulation usoro. Nhọrọ nke extruder ziri ezi na-adabere n'ụdị plastik mkpofu, àgwà granule achọrọ, olu mmepụta, na mmefu ego. Enwere isi ihe abụọ nke extruders eji na mkpofu plastic recycling granulation: ejima-skru extruders na otu-skru extruders. Ụdị ọ bụla nwere uru pụrụ iche nke ya ma dabara maka ngwa dị iche iche.

3.1 Ejima-screw Extruders maka imegharị granulation

A na-eji ejima-skru extruders eme ihe n'ọtụtụ ebe na nhazigharị nke plastik injinia na plastik nwere ọkwa mmetọ dị elu., dị ka ABS, PS, na PET. Ha nwere skru abụọ yiri nke na-atụgharị n'otu ụzọ (na-emekọ ihe ọnụ) ma ọ bụ na-emegide ntụziaka (counter-atụgharị) n'ime otu gbọmgbọm. Co-rotating twin-screw extruders are more commonly used in plastic recycling due to their superior mixing and conveying capabilities.

3.1.1 Key Advantages of Twin-screw Extruders

Easy Material Feeding: Twin-screw extruders have a strong conveying capacity, which allows for easy feeding of crushed plastic pieces, even if they are irregular in shape or have a certain amount of contaminants. This reduces the need for pre-processing of the material and improves production efficiency.
Short Material Residence Time: The residence time of the material in the twin-screw extruder is short (na-emekarị 1-5 nkeji) compared to single-screw extruders. This helps to avoid thermal degradation of the plastic, especially for heat-sensitive plastics such as PET and ABS, which can degrade easily when exposed to high temperatures for a long time. Short residence time also reduces energy consumption and improves production efficiency.
Excellent Venting Effect: Twin-screw extruders are equipped with venting ports that allow for the removal of moisture, volatile gases, and air from the molten plastic. The meshing part of the screws provides effective mixing, and the self-cleaning function of the venting section ensures that the material can achieve complete surface renewal, allowing for efficient removal of volatile substances. This helps to improve the quality of the recycled granules by reducing the number of bubbles and defects.
Superior Mixing and Plasticizing Effect: The co-rotating twin-screw extruders have strong shear and mixing capabilities, which can effectively homogenize the molten plastic, disperse contaminants, and mix additives (dị ka stabilizers, antioxidants, na agba agba) uniformly. This ensures that the recycled granules have consistent properties and good processability.
Low Specific Power Consumption: Despite their high performance, twin-screw extruders have low specific power consumption (power consumption per unit output), making them more energy-efficient compared to single-screw extruders for certain applications. This helps to reduce operating costs for recycling enterprises.
High Volume Power: Twin-screw extruders have a high volume power (power per unit volume of the barrel), which means they can process a large amount of material in a small space. This makes them suitable for large-scale production operations with limited space.

3.1.2 Suitable Applications for Twin-screw Extruders

Twin-screw extruders are particularly suitable for the recycling granulation of the following plastics:

ABS: A high-performance plastic that is widely used in electronic products, akụkụ akpaaka, na ihe egwuregwu ụmụaka. ABS is sensitive to heat and requires short residence time and good mixing, making twin-screw extruders the ideal choice.
PS: Both rigid and foam PS can be recycled using twin-screw extruders. The superior mixing capabilities of twin-screw extruders help to disperse any remaining foam cells and contaminants, ensuring good granule quality.
PET: PET is highly sensitive to moisture and heat, and requires precise temperature control and short residence time. Twin-screw extruders with good venting and temperature control capabilities are suitable for PET recycling granulation.
Injinia Plastics: Other engineering plastics such as PC (Polycarbonate), PA (Polyamide), and POM (Polyoxymethylene) can also be recycled using twin-screw extruders, thanks to their superior mixing and plasticizing capabilities.

3.2 Single-screw Extruders for Recycling Granulation

Single-screw extruders are simpler in structure, lower in cost, and easier to maintain compared to twin-screw extruders. They consist of a single screw that rotates within a barrel, conveying and melting the material through friction and shear between the screw and the barrel. Single-screw extruders are widely used in the recycling granulation of general-purpose plastics such as PP, PE, and LDPE.

3.2.1 Key Advantages of Single-screw Extruders

Short Screw Length and Residence Time: Single-screw extruders typically have a shorter screw length compared to twin-screw extruders, resulting in shorter material residence time. This helps to avoid thermal degradation of the plastic, especially for soft plastics such as PE and LDPE, which have lower melting points and are prone to degradation.
Ọnụ-dị irè: Waste plastic recycling often involves materials with high levels of contaminants, which can cause significant wear and tear on the extruder screw and barrel. Single-screw extruders are simpler in structure and use less expensive materials, making them more cost-effective to replace and maintain compared to twin-screw extruders. This is particularly important for small and medium-sized recycling enterprises with limited budgets.
Suitable for Soft Plastics: The material conveying efficiency of single-screw extruders depends on the friction performance of the solid material and the viscosity of the melt. Soft plastics such as PP, PE, and LDPE have good friction performance and low melt viscosity, making them ideal for processing with single-screw extruders. These plastics can be conveyed and melted efficiently, ensuring good granule quality.
Simple Operation and Maintenance: Single-screw extruders have a simple structure, with fewer moving parts, making them easy to operate and maintain. This reduces the need for skilled operators and lowers maintenance costs, which is beneficial for small-scale recycling operations.

3.2.2 Suitable Applications for Single-screw Extruders

Single-screw extruders are particularly suitable for the recycling granulation of the following plastics:

PP (Polypropylene): PP is a soft plastic with good friction performance and processability, making it ideal for processing with single-screw extruders. Recycled PP granules produced using single-screw extruders have good mechanical properties and can be used in a wide range of applications.
PE (Polyethylene): Both LDPE and HDPE are suitable for processing with single-screw extruders. LDPE, ọ kachasị, is a soft plastic with low melt viscosity, which can be conveyed and melted efficiently by single-screw extruders. Recycled PE granules are widely used in the production of plastic films and pipes.
LDPE (Polyethylene dị obere): LDPE is commonly used in plastic films and bags, which are easy to crush and process. Single-screw extruders are ideal for LDPE recycling granulation, as they can handle the soft material efficiently and cost-effectively.

3.3 Key Factors for Extruder Selection

When selecting an extruder for waste plastic recycling granulation, the following key factors should be considered:

Type of Waste Plastic: As discussed earlier, twin-screw extruders are suitable for engineering plastics (ABS, PS, PET) and plastics with high contamination levels, while single-screw extruders are suitable for general-purpose plastics (PP, PE, LDPE).
Olu mmepụta: For large-scale production (more than 500kg/h), twin-screw extruders are more suitable due to their high throughput and efficiency. For small-scale production (less than 200kg/h), single-screw extruders are more cost-effective and practical.
Granule Quality Requirements: If high-quality recycled granules with uniform properties and low contamination are required (such as for automotive parts and electronic products), twin-screw extruders are the better choice due to their superior mixing and plasticizing capabilities. For general-purpose applications (such as plastic films and low-grade injection-molded products), single-screw extruders can meet the requirements at a lower cost.
mmefu ego: Twin-screw extruders are more expensive than single-screw extruders, both in terms of initial investment and maintenance costs. Ya mere, enterprises with limited budgets may prefer single-screw extruders for general-purpose plastic recycling.
Oriri ike: For large-scale production, energy consumption is an important consideration. Twin-screw extruders have lower specific power consumption, making them more energy-efficient for high-volume operations. Single-screw extruders may be more energy-efficient for small-scale operations due to their simpler structure.

4. Zhuoyue Extruder Series for Waste Plastic Recycling Granulation

Zhuoyue offers a comprehensive range of extruders specifically designed for waste plastic recycling granulation, including twin-screw extruders and single-screw extruders. The extruder series are tailored to meet the specific needs of different types of waste plastics, production volumes, and granule quality requirements, combining high performance, arụmọrụ, ike-azọpụta, na ọnụ ahịa bara uru. The main extruder series include ZTE series and HTE series, each with unique features and advantages to suit different application scenarios.

4.1 Core Technical Features of Zhuoyue Extruders

All Zhuoyue extruders for waste plastic recycling granulation share a set of core technical features that make them ideal for the harsh conditions of plastic recycling, such as high contamination levels, irregular material shapes, and varying material properties:

Robust Construction: Zhuoyue extruders are built with high-quality materials (such as alloy steel for screws and barrels) to withstand the wear and tear caused by contaminants in waste plastics. The screws and barrels are treated with special surface treatments (such as nitriding and hard chrome plating) to improve their wear resistance and service life.
Precise Temperature Control: The extruders na-onwem na elu okpomọkụ akara usoro, gụnyere mpaghara kpo oku na mpaghara jụrụ oyi, iji hụ na njikwa ziri ezi nke gbọmgbọm na okpomọkụ anwụ anwụ. Nke a na-enyere aka izere mmebi okpomọkụ nke plastik ma hụ na agbaze na ngwakọta zuru ezu.
Nbufe na ịgwakọta nke ọma: A na-ahazi atụmatụ ịghasa ahụ maka ịmegharị plastik n'efu, nwere ikike mbufe na ike ịgwakọta. Ejima-screw extruders na-egosipụta skru na-agbanwe agbanwe yana profaịlụ ụgbọ elu kachasị mma iji hụ na ngwakọta na homogenization dị elu., ebe otu-screw extruders nwere ahaziri skru pụrụ iche iji kwalite nrụpụta arụmọrụ maka rọba plastik..
Ọmarịcha arụmọrụ Venting: Ejima-screw extruders nwere ọtụtụ ọdụ ụgbọ mmiri na-ekupụ ikuku iji wepụ mmiri mmiri, volatile gases, and air from the molten plastic, n'ịhụ granules dị elu na obere ntụpọ. The self-cleaning function of the venting section ensures efficient venting even with contaminated materials.
Nhazi nke nchekwa ike: Zhuoyue extruders adopt energy-saving technologies such as variable frequency drives (VFD) and optimized motor configurations to reduce energy consumption. This helps to lower operating costs for recycling enterprises.
Easy Operation and Maintenance: The extruders are designed with user-friendly interfaces and simple structures, making them easy to operate and maintain. The screws and barrels can be easily disassembled for cleaning and replacement, mbenata downtime.
Customizable Configurations: Zhuoyue extruders can be customized with different screw lengths, diameters, and configurations to meet the specific needs of different types of waste plastics and production volumes. Ọmụmaatụ, extruders for PET recycling can be equipped with special drying systems and venting ports to ensure complete moisture removal.

4.2 ZTE Series Extruders

The ZTE series is Zhuoyue’s cost-effective extruder series, designed for small and medium-sized recycling enterprises and general-purpose waste plastic recycling granulation. This series offers excellent cost-performance ratio, with parameters designed to suit most common waste plastics, gụnyere PP, PE, LDPE, and general-purpose ABS and PS. The ZTE series includes both single-screw and twin-screw extruders, providing flexible options for different applications.

4.2.1 Key Features of ZTE Series Extruders

Excellent Cost-Performance Ratio: The ZTE series is designed to provide reliable performance at a competitive price, making it the ideal choice for enterprises with limited budgets or small-scale production needs. The initial investment and maintenance costs are significantly lower than high-end extruders, while still meeting the basic requirements of waste plastic recycling granulation.
Versatile Parameter Design: The parameters of the ZTE series are designed to suit most common waste plastics, gụnyere PP, PE, LDPE, ABS, na PS. This versatility allows enterprises to process multiple types of waste plastics with a single extruder, improving production flexibility and reducing equipment investment.
Reliable Operation: The ZTE series adopts a reliable standard transmission system and simple structure, ensuring stable operation even in harsh recycling environments. The screws and barrels are designed to handle contaminants in waste plastics, reducing the risk of equipment failure.
Low Maintenance Costs: The simple structure of the ZTE series makes it easy to maintain, with fewer moving parts and lower maintenance requirements. The screws and barrels can be easily replaced when worn, ibelata oge nkwụsịtụ na ụgwọ mmezi.
Suitable for Small to Medium-Scale Production: The ZTE series is available in a range of sizes, with throughputs ranging from 50kg/h to 500kg/h, making it suitable for small to medium-scale recycling operations.

4.2.2 ZTE Series Model Parameters

The ZTE series includes both single-screw and twin-screw extruders, with parameters tailored to different types of waste plastics. The following table details the parameters of the ZTE series twin-screw extruders, suitable for ABS, PS, and PET recycling granulation:

Nlereanya	Torque pụrụ iche (N.m/Cm³)	Ike moto (Kw)	Ọsọ mmepụta (rpm)	Ogo omimi oghere D0/Di	Suitable Plastics
25	6	7.5	600	1.55	PS, Small-scale ABS
35	6	18.5	600	1.55	PS, ABS, LDPE
50	6	55	600	1.55/1.68	ABS, PS, PET (Small-scale)
65	6	110	600	1.55/1.68	ABS, PS, PET
75	6	160	600	1.55/1.68	ABS, PS, PET, PP
95	6	300	600	1.55/1.68	ABS, PS, PET, PP, PE

The ZTE series single-screw extruders are mainly used for PP, PE, and LDPE recycling granulation, with parameters optimized for soft plastics. The screws are designed with enhanced conveying capacity to handle the irregular shapes of crushed plastic films and bottles, ensuring efficient production.

4.2.3 Application Scenarios for ZTE Series

The ZTE series is ideal for the following application scenarios:

Small and medium-sized recycling enterprises with limited budgets.
General-purpose waste plastic recycling, gụnyere PP, PE, LDPE, ABS, na PS.
Production of general-purpose recycled granules for plastic films, low-grade injection-molded products, and construction components.
Enterprises new to plastic recycling, thanks to the easy operation and low maintenance requirements of the ZTE series.

4.3 HTE Series Extruders

The HTE series is Zhuoyue’s mid-range extruder series, designed to bridge the gap between cost-effective extruders (such as ZTE series) and high-end extruders. This series combines high performance with high cost-effectiveness, delivering higher output while reducing energy consumption. The HTE series includes both twin-screw and single-screw extruders, suitable for medium to large-scale waste plastic recycling granulation.

4.3.1 Key Features of HTE Series Extruders

Balanced Performance and Cost-Effectiveness: The HTE series offers higher performance than the ZTE series, including better mixing capabilities, elu throughput, and more precise temperature control, while maintaining a competitive price. This makes it suitable for enterprises that require higher granule quality but do not want to invest in high-end extruders.
Energy-Saving and High Output: The HTE series is optimized for energy efficiency, with advanced motor configurations and variable frequency drives (VFD) to reduce energy consumption. N'otu oge ahụ, the extruders have higher throughput, allowing for medium to large-scale production (500kg/h to 1000kg/h) with lower energy costs.
Reasonable Torque and Power Configuration: The HTE series has a reasonable torque and power configuration, ensuring stable and efficient production even when processing plastics with high contamination levels or varying properties. The twin-screw extruders have higher torque density, making them suitable for processing engineering plastics such as ABS and PET, while the single-screw extruders are optimized for soft plastics such as PP and PE.
Dual-Speed Options for Partial Models: Some models of the HTE series are equipped with dual-speed options, allowing for flexible adjustment of the screw speed to suit different types of plastics and production requirements. This expands the application range of the extruders, making them suitable for multiple plastic types.
Enhanced Wear Resistance: The screws and barrels of the HTE series are made of high-quality alloy steel and treated with advanced surface treatments to improve their wear resistance, ensuring a long service life even in harsh recycling environments.
Advanced Control System: The HTE series is equipped with advanced PLC control systems, allowing for automatic control of temperature, ịghasa ọsọ, extrusion nrụgide, and other key parameters. This improves the stability and consistency of the granulation process, ensuring uniform granule quality.

4.3.2 HTE Series Model Parameters

The HTE series twin-screw extruders are suitable for ABS, PS, PET, PP, PE, and LDPE recycling granulation, with parameters optimized for high performance and efficiency. Tebụl na-esonụ na-akọwapụta paramita a kapịrị ọnụ:

Nlereanya	Torque pụrụ iche (N.m/Cm³)	Ike moto (Kw)	Ọsọ mmepụta (rpm)	Ogo omimi oghere D0/Di	Suitable Plastics	Ntinye aka (n'arọ/h)
25	9	11	600	1.55	PS, ABS, LDPE	50-100
35	9	30	600	1.55	PS, ABS, PE, LDPE	100-200
35	9	45	1000	1.55	PS, ABS, PE, LDPE	200-300
50	9	75	600	1.55/1.68	ABS, PS, PET, PP	300-500
50	9	110	900	1.55/1.68	ABS, PS, PET, PP	500-700
65	9	160	600	1.55/1.68	ABS, PS, PET, PP, PE	700-900
65	9	220	900	1.55/1.68	ABS, PS, PET, PP, PE	900-1200
75	9	250	600	1.55/1.68	ABS, PS, PET, PP, PE, LDPE	1200-1500
75	9	315	900	1.55/1.68	ABS, PS, PET, PP, PE, LDPE	1500-1800
95	9	400	600	1.55/1.68	All common waste plastics	1800-2200

The HTE series single-screw extruders are optimized for PP, PE, and LDPE recycling granulation, with higher throughput and better energy efficiency compared to the ZTE series. They are suitable for medium to large-scale production of recycled granules for plastic films, ọkpọkọ, na ngwaahịa akpụ akpụ ntụtụ.

4.3.3 Application Scenarios for HTE Series

The HTE series is ideal for the following application scenarios:

Medium to large-scale recycling enterprises with higher granule quality requirements.
Recycling of multiple types of waste plastics, gụnyere PP, PE, LDPE, ABS, PS, na PET.
Production of high-quality recycled granules for automotive parts, electronic product accessories, and high-grade injection-molded products.
Enterprises that focus on energy efficiency and cost reduction, thanks to the energy-saving design of the HTE series.

4.4 Customized Solutions from Zhuoyue

In addition to the standard ZTE and HTE series, Zhuoyue also provides customized extruder solutions for special waste plastic recycling needs. Ọmụmaatụ:

Customized extruders for high-contamination waste plastics, equipped with enhanced filtering systems to remove contaminants.
Extruders for heat-sensitive plastics such as PET and PC, equipped with special drying systems and low-shear screws to avoid thermal degradation.
Complete recycling granulation production lines, including crushers, igwe nkụ, extruders, pelletizers, and screening equipment, to provide a one-stop solution for enterprises.

Zhuoyue’s professional R&D team works closely with customers to understand their specific needs and provide tailored solutions that meet their production requirements and budget.

5. Best Practices for Waste Plastic Recycling Granulation with Zhuoyue Extruders

To ensure the best performance and granule quality when using Zhuoyue extruders for waste plastic recycling granulation, the following best practices are recommended:

5.1 Proper Sorting and Cleaning

Effective sorting and cleaning are essential to reduce the wear and tear on the extruder and ensure high-quality granules. Separate different types of plastics to avoid mixing, and remove non-plastic contaminants (dị ka ígwè, akwụkwọ, and glass) as much as possible. Thoroughly clean the waste plastics to remove oil, griiz, na ihe fọduru nri, which can affect the mixing and plasticizing effect.

5.2 Optimal Drying

Ensure that the crushed plastic pieces are properly dried to reduce the moisture content to below 0.5%. For moisture-sensitive plastics such as PET, use high-temperature drying (120-160Celsius C) for a sufficient period to ensure complete moisture removal. This helps to avoid bubbles and defects in the recycled granules.

5.3 Precise Process Parameter Control

Adjust the extruder parameters (such as temperature, ịghasa ọsọ, na extrusion nrụgide) according to the type of waste plastic. Follow the recommended parameter settings provided by Zhuoyue, and make adjustments based on the actual material properties and granule quality. Avoid excessively high temperatures or shear rates, which can cause plastic degradation.

5.4 Regular Maintenance

Regularly inspect and maintain the extruder to ensure its normal operation. Clean the screws and barrels regularly to remove any accumulated material or contaminants. Check the wear of the screws and barrels, and replace them when necessary. Lubricate the moving parts regularly to reduce friction and extend the service life of the extruder.

5.5 Use of Additives (If Necessary)

For waste plastics with severe degradation or poor performance, consider adding additives such as stabilizers, antioxidants, and plasticizers to improve the quality of the recycled granules. Consult Zhuoyue’s technical team to select the appropriate additives and dosage.

6. Mmechi

Waste plastic recycling granulation is a critical technology for realizing resource circulation and environmental protection, offering significant economic, gburugburu ebe obibi, and social benefits. The quality and efficiency of the granulation process depend largely on the extruder used, and selecting the right extruder is essential for the success of a plastic recycling enterprise.

Zhuoyue’s ZTE series and HTE series extruders are specifically designed for waste plastic recycling granulation, combining high performance, arụmọrụ, ike-azọpụta, na ọnụ ahịa bara uru. The ZTE series provides a cost-effective solution for small and medium-sized enterprises and general-purpose plastic recycling, while the HTE series offers balanced performance and cost-effectiveness for medium to large-scale production with higher quality requirements. With robust construction, njikwa okpomọkụ ziri ezi, superior mixing capabilities, and customizable configurations, Zhuoyue extruders can handle all types of waste plastics, from PP and PE to ABS and PET, delivering high-quality recycled granules for a wide range of applications.

As a leader in extrusion technology, Zhuoyue is committed to providing advanced, a pụrụ ịdabere na ya, and cost-effective solutions for the plastic recycling industry. With professional R&D, high-quality products, and comprehensive after-sales service, Zhuoyue helps enterprises unlock the full potential of waste plastic recycling, contributing to a more sustainable and environmentally friendly future.

Tebulu ọdịnaya