Dib u warshadaynta caaga ah ee horumarsan: Farsamada, Qalabka iyo Zhuoyue Extruder Solutions

Xilli la kordhinayo wacyigelinta deegaanka iyo siyaasadaha ilaalinta kheyraadka adag, Dib-u-warshadaynta caagga ah waxay noqotay diiradda muhiimka ah ee warshadaha adduunka oo dhan. Waxaa ka mid ah tignoolajiyada dib-u-warshadaynta balaastikada ee kala duwan, granulation dib u warshadaynta qashinka caaga ah ayaa u taagan sidii wax la taaban karo, hufan, iyo hab dhaqan dhaqaale oo wax ku ool ah oo u beddela alaabta caagga ah ee la tuuro oo loo beddelo granulos dib loo isticmaali karo. Granules-ka dib loo warshadeeyay waxa lagu sii farsamayn karaa baco cusub, oo leh heerar waxqabad oo la mid ah kuwa laga sameeyay alaabta bikrada, sidaas awgeed la ogaado wareegga kheyraadka dhabta ah iyo yareynta culeyska deegaanka ee ay sababaan qashinka balaastikada ah.

Zhuuye, soo saaraha hormuudka ah ee qalabka extrusion, waxaa ka go'an in ay bixiso khadadka wax soo saarka dib-u-warshadaynta dib-u-warshadaynta ee dhammaan noocyada caagagga qashinka ah, oo ay ku jiraan PP (Polypropylene), PE (Polyethylene), LDPE (Polyethylene Cufnaanta Hoose), PET (Polyethylene Terephthalate), PS (Polystyrene), ABS (Acrylonitrile Butadiene Styrene), iyo qaar kaloo badan. Iyada oo leh tignoolajiyada sare ee extrusion iyo khibrad qoto dheer oo dib u warshadaynta balaastikada ah, Soosaarayaasha Zhuoyue waxaa loogu talagalay inay la kulmaan caqabadaha gaarka ah ee qashinka caagga ah, gaarsiinta hufan, tamarta-badbaadinta, iyo xalal tayo sare leh oo loogu talagalay shirkadaha ku hawlan dib u warshadaynta balaastikada.

1. Dulmar guud ee dib u warshadaynta qashinka qashinka

Dib-u-warshadaynta balaastikada qashinka ah waa hannaan gaar ah oo beddela noocyada kala duwan ee caagagga qashinka-sida dhalooyinka caagga ah, filimada, weelasha, qashinka xadhkaha wax soo saarka, iyo qashinka balaastigga ah ee macaamiishu ka dib - oo noqda lebbis, granules caag ah oo tayo sare leh iyada oo loo marayo taxane ah daaweyn farsamo iyo kulayl. Granules-ka dib loo warshadeeyay, sidoo kale loo yaqaan regranulates ama pellets balaastiig ah oo dib loo habeeyey, si toos ah ayaa loogu isticmaali karaa qaabaynta duritaanka, extrusion, dharbaaxo, iyo hababka kale ee farsamaynta caagga ah si loo soo saaro alaab cusub, laga bilaabo alaabta baakadaha iyo qaybaha dhismaha ilaa qaybaha baabuurta iyo baahiyaha maalinlaha ah.

Qiimaha aasaasiga ah ee qashinka qashinka dib-u-warshadaynta dib-u-warshadaynta waxay ku jirtaa awoodda ay u leedahay inay wax ka qabato caqabadaha laba-geesoodka ah ee qashinka caagga ah iyo yaraanta kheyraadka.. Si ka duwan hababka qashin-qubka caagagga ah sida qashin-qubka iyo gubidda, kuwaas oo keena khataro deegaan oo aad u daran, Dib-u-warshadaynta dib-u-warshadaynta waxay gaaraysaa dib-u-warshadaynta kheyraad run ah:

Ilaalinta Deegaanka: Ku shubista qashinka balaastikada ah waxay haysataa kheyraadka dhulka ee qiimaha leh waxayna u horseedi kartaa wasakhowga ciidda iyo biyaha dhulka hoostiisa, maadaama balaastiiggu yihiin kuwo aan noolayn karin waxayna sii deyn karaan walxaha waxyeelada leh waqti ka dib. Gubasho, dhanka kale, soo daaya gaasas sun ah (sida dioxins iyo carbon monoxide) iyo walxaha qaybsan, ka qaybqaadanaya wasakhowga hawada iyo kulaylka caalamiga ah. Dib-u-warshadaynta dib-u-warshadaynta waxay yaraynaysaa xadiga qashinka caagga ah ee soo galaya qashin-qubka iyo gubiyaasha, yaraynta wasakhowga deegaanka iyo qiiqa kaarboonka.
Ilaalinta Kheyraadka: Caagagga waxaa laga soo dheegtay shidaal aan la cusboonaysiin karin (sida saliidda iyo gaaska dabiiciga ah). Dib u warshadaynta balaastiigga qashinka dib loo isticmaali karo, Baahida alaabta caagagga bikrada ah waa la dhimay, Ilaalinta kheyraadka qaaliga ah ee lafaha iyo yareynta isticmaalka tamarta ee la xiriirta wax soo saarka caagagga bikrada ah. Waxaa lagu qiyaasaa in dib-u-warshadaynta hal tan oo caag ah ay badbaadin karto ilaa iyo 7.4 fuustooyin saliid ah iyo in la yareeyo qiiqa kaarboonka by 1.5 tan.
Faa'iidooyinka Dhaqaale: Granules balaastikada dib loo warshadeeyay aad bay uga jaban yihiin alaabta caaga ah ee bikrada ah, siinta kayd dhaqaale oo la taaban karo warshadeeyayaasha. Shirkadaha dib u warshadaynta, habka ururinta, farsamaynta, iyo caagadaha qashinka ee granulating waxay dhalin karaan faa'iido deggan, abuurista fursado dhaqaale oo cusub iyo jagooyin shaqo. Intaa waxaa dheer, waddamo badan iyo gobollo badan ayaa bixiya dhiirigelin siyaasadeed (sida kabka iyo cashuur dhaafka) shirkadaha dib u warshadaynta balaastikada, sii wanaajinta awoodda dhaqaale ee dib u warshadaynta granulation.

Si kastaba ha ahaatee, tayada granules caag ah oo dib loo warshadeeyay iyo waxqabadka alaabooyinka dib loo warshadeeyay waxay aad ugu tiirsan yihiin habka granulation iyo qalabka loo isticmaalo. Waxyaabaha ay ka midka yihiin nooca iyo nadiifnimada caagga qashinka, hufnaanta kala-soocidda iyo nadiifinta, heerkulka iyo xakamaynta xiirta inta lagu jiro extrusion, iyo naqshadaynta extruder-ku dhammaantood waxay saameyn weyn ku leeyihiin tayada ugu dambeysa ee alaabta. Sidaa darteed, horumarinta fudud, ku habboon, hufan, tamarta-badbaadinta, deegaan ahaan, iyo geeddi-socodka granulation ee dhaqaale ahaan macquul ah ayaa noqday diiradda cilmi-baarista iyo horumarinta warshadaha dib-u-warshadaynta caagga ah.

1.1 Astaamaha Muhiimka ah ee Granules caaga ah ee dib loo warshadeeyay

Waxqabadka granules caagga ah ee dib loo warshadeeyay waxay si dhow ula xiriiraan nooca caagga qashinka ah, heerka faddaraynta, iyo habka granulation. Guud ahaan, granules dib loo warshadeeyay oo tayo sare leh waa inay lahaadaan sifooyinka soo socda:

Cabbirka Qaybta lebbiska ah: Cabbirka walxaha joogtada ah ayaa hubiya quudinta xasilloon inta lagu jiro habaynta xiga (sida qaabaynta duritaanka iyo extrusion), hagaajinta isku midka ah iyo tayada alaabta ugu dambeysa. Cabbirka walxaha granules dib loo warshadeeyay ayaa caadi ahaan u dhexeeya 2mm iyo 5mm, iyadoo ku xiran shuruudaha codsiga.
Wasakhda Hoose: Wasakhowga sida wasakhda, siigada, jajabyo bir ah, warqad, iyo walxaha kale ee aan caag ahayn waxay si weyn u saameyn karaan waxqabadka granules dib loo warshadeeyay iyo badeecada ugu dambeysa. Sidaa darteed, Kala-soocidda wax ku oolka ah iyo nadiifinta caagagga qashinka ayaa lagama maarmaan u ah si loo hubiyo heerarka faddareynta hoose.
Balaastik Wanaagsan iyo Habsaamin: Granules dib loo warshadeeyay waa inay lahaadaan sifooyin dhalaalid wanaagsan iyo socodka, u oggolaanaya in si sahlan loo farsameeyo alaabada cusub iyada oo aan saameyn ku yeelan hufnaanta processing ama tayada alaabta. Tani waxay u baahan tahay xakamaynta saxda ah ee heerkulka iyo heerka xiirta inta lagu jiro habka granulation si looga fogaado xaalufka xad dhaafka ah ee qaab dhismeedka molecular caag ah.
Guryaha Makaanikada ee deggan: Xoogga jilbaha, dhererka xilliga nasashada, xoog saamayn, iyo sifooyinka kale ee farsamada ee granules dib loo warshadeeyay waa inay ahaadaan kuwa ugu dhow ee suurtogalka ah kuwa alaabta bikrada ah, hubinta in alaabada dib loo warshadeeyay ee ugu dambaysay ay buuxiyaan heerarka waxqabad ee loo baahan yahay.
Qoyaan Hoose: Qoyaanka sarreeya ee ku jira granules dib loo warshadeeyay waxay u horseedi kartaa cillado sida goobooyin iyo dildilaaca alaabta ugu dambeysa inta lagu jiro habaynta.. Sidaa darteed, tillaabooyinka qalajinta ayaa inta badan loo baahan yahay inta lagu jiro habka granulation si loo yareeyo qoyaanka heerka la aqbali karo (sida caadiga ah hoos 0.5%).

1.2 Noocyada Caadiga ah ee Caagagga Qashinka ee Granulation

Ku dhawaad dhammaan noocyada balaastikada heerkulbeegga ah ayaa dib loo warshadayn karaa oo la damin karaa, marka heerkulbeegyada balaastikada ah (oo aan la dhalaali karin oo dib loo habayn karin) kuma haboona dib u warshadaynta granulation. Noocyada ugu badan ee caagadaha qashinka ah ee loo isticmaalo dib u warshadaynta waxaa ka mid ah:

PP (Polypropylene): Heerkulbeeg si weyn loo isticmaalo oo leh iska caabin kiimiko oo wanaagsan, sifooyinka farsamada, iyo habsocodka. Qashinka caadiga ah PP waxaa ku jira baaldiyo balaastiig ah, weelasha, koofiyadaha, iyo qashinka wax soo saarka. Recycled PP granules are often used to produce plastic pipes, auto parts, and packaging materials.
PE (Polyethylene): Divided into LDPE (Polyethylene Cufnaanta Hoose) iyo HDPE (Cufnaanta Sare ee Polyethylene). LDPE is commonly used in plastic films, bacaha, iyo dhalooyin, while HDPE is used in barrels, tuubooyinka, iyo weelasha. Recycled PE granules are suitable for producing plastic films, tuubooyinka, and injection-molded products.
PET (Polyethylene Terephthalate): A transparent, rigid plastic commonly used in beverage bottles, baakadaha cuntada, and fiber products. Recycled PET granules are widely used in the production of polyester fibers, dhalooyin caag ah, and packaging materials.
PS (Polystyrene): Available in rigid (such as foam cups, weelasha cuntada, and plastic toys) and foam (EPS, expanded polystyrene) forms. Recycled PS granules can be used to produce plastic toys, decorative materials, and foam products.
ABS (Acrylonitrile Butadiene Styrene): A high-performance plastic with good impact strength, rigidity, iyo iska caabinta kulaylka. Common waste ABS includes plastic shells of electronic products, auto parts, iyo alaabta lagu ciyaaro. Granules ABS ee dib loo warshadeeyay ayaa loo isticmaalaa in lagu soo saaro qolof alaabta elektarooniga ah, auto parts, iyo qaybo la isku duro.

Zhuoyue's dib-u-warshadaynta xadhkaha wax-soo-saarka granulation waxaa loogu talagalay inay qabtaan dhammaan caagadaha qashinka ee kor lagu soo sheegay, oo leh qaabaynta qalabka la habeeyey si loo buuxiyo shuruudaha habaynta gaarka ah ee noocyada caagadaha kala duwan.

2. Habka Dib-u-warshadaynta Caaga ee Qashinka

Habka qashinka dib-u-warshadaynta caagga ah wuxuu caadi ahaan ka kooban yahay dhowr tillaabo oo muhiim ah: ururinta iyo kala soocida qashinka caagagga ah, nadiifinta, burburin, qalajin, granulation extrusion, qaboojin, iyo goyn. Tallaabo kastaa waxay door muhiim ah ka ciyaartaa hubinta tayada granules dib loo warshadeeyay. Qiyaasaha habraaca gaarka ahi way kala duwanaan karaan iyadoo ku xidhan nooca caagagga qashinka ah, heerka faddaraynta, iyo tayada la rabo ee granules dib loo warshadeeyay.

2.1 Ururinta iyo kala-soocidda

Talaabada ugu horeysa ee habka dib u warshadaynta dib-u-warshadaynta waa ururinta iyo kala-soocidda balaastikada qashinka. Caagagga qashinka waxaa laga soo ururiyaa ilo kala duwan, oo ay ku jiraan guryaha, warshadaha, xarumaha ganacsiga, iyo khadadka wax soo saarka. Sababtoo ah caagadaha qashinka ee kala duwan iyo joogitaanka wasakhooyinka, kala-soocidda waa lama huraan si loo hubiyo tayada granules-ka dib loo warshadeeyay.

Kala soocida waxa lagu samayn karaa gacan ama farsamo ahaan. Kala-soocidda gacanta waxay ku habboon tahay hawlgallada dib-u-warshadaynta-yar-yar waxayna ku lug leedahay kala-soocidda noocyada kala duwan ee balaastigga, ka saarida wasakhda aan caaga ahayn (sida biraha, warqad, muraayad, iyo qashinka dabiiciga ah), iyo kala soocida balaastikada midabka iyo tayada. Kala soocida makaanikada, dhanka kale, waa ka hufan oo ku habboon hawlgallada baaxadda leh, iyadoo la isticmaalayo tignoolajiyada sida kala saarista cufnaanta (kala soocidda-sabaynta), kala soocidda magnetic, kala-soocidda electrostatic, iyo kala-soocidda infrared si loo kala saaro noocyada kala duwan ee balaastigga loogana saaro wasakhda.

Kala soocida waxtarka leh waa muhiim sababtoo ah isku-dhafka noocyada kala duwan ee balaastikada waxay horseedi kartaa hoos u dhac weyn oo ku yimaada waxqabadka granules-ka dib loo warshadeeyay.. Tusaale ahaan, isku darka PP iyo PET waxay keeni kartaa kala go'a wajiga inta lagu jiro extrusion, taasoo keentay caag-xumada iyo sifooyinka farsamada ee granules.

2.2 Nadiifinta

Kala soocida ka dib, caagadaha qashinka ayaa la nadiifiyaa si meesha looga saaro wasakhowga dusha sare sida wasakhda, siigada, saliid, dufan, haraaga cuntada, iyo sumadaha. Habka nadiifinta ayaa caadi ahaan ku lug leh dhowr tillaabo:

Nadiifinta ka hor: Ka saarida wasakhda waaweyn (sida calaamadaha, koofiyadaha, iyo jajabyo bir ah) iyo wasakh qalafsan oo la cadaydo, afuufaya, ama gacanta lagu soo qaado.
dhaqid: Ku qooynta caagagga qashinka ee xalka nadiifinta (badiyaa ku biyo saabuun ama alkali) in saliid laga saaro, dufan, iyo haraaga cuntada. Kicinta ama nadiifinta ultrasonic ayaa laga yaabaa in loo isticmaalo si kor loogu qaado saamaynta nadiifinta.
Biyo raacida: Ku raaci caagadaha la nadiifiyey biyo nadiif ah si aad meesha uga saarto wixii nadiifinta haray iyo wasakhowga.
Biyo-saarid: Ka saaritaanka biyaha xad-dhaafka ah caagadaha la nadiifiyay iyadoo la isticmaalayo centrifuges, mashiinnada biyaha nadiifiya, ama qalajinta hawada si loo yareeyo qoyaanka qoyaanka iyo fududaynta habka xiga.

Saamaynta nadiifinta waxay si toos ah u saameynaysaa tayada granules-ka dib loo warshadeeyay. Nadiifinta aan ku filneyn waxay u horseedi kartaa wasakheynta granules, saamaynaya hab-socodka iyo sifooyinka farsamada. Tusaale ahaan, hadhaaga saliidda iyo dufanku waxay sababi karaan ku dhegganaan liita inta u dhaxaysa molecules balaastigga ah inta lagu jiro extrusion, taasoo keentay in xoogga jilicsan ee granules hooseeyo.

2.3 Burburinta

Ka dib nadiifinta iyo nadiifinta biyaha, caagadaha qashinka waxaa lagu jajabiyaa qaybo yaryar (jajab ama jajab) adigoo isticmaalaya burburiyaha. Burburinta waxay caawisaa inay kordhiso bedka bacda, fududaynta dhalaalka iyo isku dhafka inta lagu jiro habka extrusion. Waxa kale oo ay kaa caawinaysaa in laga saaro wixii wasakhaysan ee yar yar ee hadhay ee laga yaabo in lagu dhex daro caagaga.

Nooca burburiyaha la isticmaalo waxay ku xiran tahay nooca iyo qaabka caagga qashinka. Noocyada caanka ah ee burburinta waxaa ka mid ah burburiyaha daanka, burburiyeyaasha dubbaha, burburiyaha daab, iyo granulators. Wixii balaastikada dabacsan (sida filimada iyo bacaha), Burburiyeyaasha daabka ayaa caadi ahaan loo isticmaalaa, halka balaastiig adag (sida caagagga iyo weelasha), Burburiyeyaasha dubbaha ama burburiyaha daanka ayaa aad ugu habboon. Baaxadda qaybaha balaastigga ah ee la jajabiyey waxay badanaa u dhexeeyaan 5mm iyo 20mm, iyadoo ku xiran nooca extruder ee la isticmaalo iyo cabbirka granule ee la doonayo.

2.4 Qalajinta

Xitaa ka dib marka biyaha laga saaro, the crushed plastic pieces may still contain a certain amount of moisture. High moisture content can lead to defects such as bubbles, cracks, and poor surface quality in the recycled granules during extrusion. Sidaa darteed, a drying step is necessary to reduce the moisture content of the crushed plastic pieces to an acceptable level (sida caadiga ah hoos 0.5%).

Common drying methods include hot air drying, vacuum drying, and infrared drying. Hot air drying is the most widely used method, which involves passing hot air (at a temperature of 80-120°C) through the crushed plastic pieces to evaporate the moisture. The drying time and temperature depend on the type of plastic and the initial moisture content. Tusaale ahaan, PET is more sensitive to moisture and requires higher drying temperatures (120-160°C) and longer drying times to ensure complete moisture removal.

2.5 Extrusion granulation

Granulation Extrusion waa tallaabada ugu muhiimsan ee habka dib u warshadaynta qashinka qashinka. Waxay ku lug leedahay dhalaalid, isku dhafka, iyo isku-duubnida qaybaha balaastigga ah ee la shiiday ee la shiiday iyadoo la isticmaalayo qalab dibadda ah, ka dibna bacda dhalaalaysa ku sii daaya dhinta si ay u sameeyaan xadhig joogto ah, Kaas oo dabadeed la qaboojiyey oo la jarjaray granules isku mid ah.

Extruder waa qalabka muhiimka ah ee tallaabadan, iyo waxqabadkeedu wuxuu si toos ah u go'aamiyaa tayada iyo waxtarka habka granulation. Waxaa jira laba nooc oo ah kuwa ugu waaweyn ee loo isticmaalo qashinka dib-u-warshadaynta caagga ah: extruders mataano-screw iyo hal-screw extruders. Nooc kastaa wuxuu leeyahay faa'iidooyin u gaar ah wuxuuna ku habboon yahay noocyada kala duwan ee caagadaha qashinka ah, sida lagu faahfaahiyay Qaybta 3.

Inta lagu jiro granulation extrusion, dhowr halbeegyada geedi socodka muhiimka ah ayaa u baahan in si sax ah loo xakameeyo:

Heerkulka: Heerkulka foosto extruder-ka iyo dhimashadu waxay muhiim u tahay dhalaalidda caagga iyo hubinta isku-dhafka wanaagsan iyo isku-dhafka. Noocyada kala duwan ee balaastiggu waxay leeyihiin dhibco dhalaalid oo kala duwan, iyo heerkulka foostada ayaa sida caadiga ah la dhigayaa 10-30 ° C ka sarreeya barta dhalaalka ee caagga si loo hubiyo dhalaalid dhammaystiran. Tusaale ahaan, heerkulka foosto ee PP caadi ahaan waa 170-220 ° C, halka PET ay tahay 260-280°C. Heerkulka aadka u sarreeya wuxuu sababi karaa kuleylka kulaylka caagagga, taasoo horseedaysa hoos u dhaca sifooyinka farsamada ee granules dib loo warshadeeyay, halka heerkulka xad dhaafka ah ee hooseeya uu keeni karo dhalaal aan dhamaystirnayn iyo iskudhaf xumo.
Heerka jeexjeexa: Heerka xiiridda waxaa lagu go'aamiyaa xawaaraha isbiirta iyo naqshadeynta furka. Qiyaasta xiirid ku habboon waxay caawisaa in la mideeyo caagga dhalaalay, kala firdhi wixii wasakhaysan ee soo hadhay, iyo hagaajinta caagagga granules. Si kastaba ha ahaatee, Heerarka xiirid xad-dhaaf ah oo aad u sarreeya waxay sababi kartaa hoos-u-dhac farsamo ee qaab-dhismeedka molecular caagga ah, taasoo keentay hoos u dhac waxqabad.
Xawaaraha isku dubaridka: Xawaaraha isbiirtadu wuxuu saameeyaa wax-soo-saarka, waxtarka dhalaalidda, iyo tayada isku dhafka. Xawaare sare oo xawaaruhu wuxuu kordhin karaa wax-soo-saarka laakiin waxa laga yaabaa inuu yareeyo waxtarka dhalaalka iyo isku-darka, halka xawaaraha hoose ee xawaaruhu uu wanaajin karo tayada isku dhafka laakiin waxay yaraynaysaa wax soo saarka. Xawaaraha ugu fiican wuxuu ku xiran yahay nooca balaastigga, nooca extruder, iyo tayada granule ee la rabo.
Cadaadiska Soo Bixinta: Cadaadiska extrusion waxaa lagu go'aamiyaa naqshadeynta dhinta, xawaarihii xawaaruhu, iyo maaddada viscosity. Cadaadiska extrusion-ka joogtada ahi waxa uu xaqiijiyaa samaynta xadhig isku mid ah iyo cabbirka granule joogto ah. Cadaadiska aadka u sarreeya wuxuu keeni karaa xannibaad dhimasho, halka cadaadiska xad-dhaafka ah ee hooseeya uu keeni karo xadhig aan sinnayn.

2.6 Qaboojinta iyo Goynta

Ka dib markii extrusion dhex dhinta, balaastigga joogtada ah ayaa la qaboojiyey si loo adkeeyo. Qaboojinta waxaa lagu samayn karaa iyadoo la isticmaalayo qaboojinta hawada ama qaboojinta biyaha. Qaboojinta biyaha ayaa ah mid aad waxtar u leh waxaana si ballaaran loo isticmaalaa hawlgallada granulation ee baaxadda leh, ku lug leh ka gudbinta xargaha iyada oo la marayo haanta biyaha ama buufinta biyaha si dhakhso ah loogu qaboojiyo heerkulka qolka. Qaboojinta hawadu waxay ku habboon tahay hawlgallada yaryar ama bacaha u nugul biyaha (sida balaastikada injineernimada qaarkood).

Marka xargaha la qaboojiyo oo la adkeeyo, waxaa lagu gooyaa granules isku mid ah iyadoo la isticmaalayo pelletizer. Pelletizer-ka waxaa sida caadiga ah lagu rakibaa meesha laga baxo nidaamka qaboojinta waxaana lagu hagaajin karaa si loo xakameeyo dhererka granules (inta badan inta u dhaxaysa 2mm iyo 5mm). Noocyada caadiga ah ee pelletizers waxaa ka mid ah pelletizers strand, Pelletizers giraanta biyaha, iyo kiliyeyaasha biyaha hoostooda. Strand pelletizers are the most widely used type for waste plastic recycling granulation, as they are simple in structure, fududahay in lagu shaqeeyo, 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 (haddii loo baahdo) 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. Extruder Selection for Waste Plastic Recycling Granulation

Sidii hore loo sheegay, Extruder waa qalabka asaasiga ah ee habka dib u warshadaynta qashinka qashinka. Xulashada qalabka saxda ah waxay ku xiran tahay nooca caagagga qashinka ah, tayada granule ee la rabo, mugga wax soo saarka, iyo miisaaniyada. Waxaa jira laba nooc oo ah kuwa ugu waaweyn ee loo isticmaalo qashinka dib-u-warshadaynta caagga ah: extruders mataano-screw iyo hal-screw extruders. Nooc kastaa wuxuu leeyahay faa'iidooyin u gaar ah wuxuuna ku habboon yahay codsiyo kala duwan.

3.1 Twin-screw Extruders ee dib u warshadaynta Granulation

Extruders-ka mataanaha ah ayaa si weyn loogu isticmaalaa dib-u-warshadaynta granulation ee balaastikada injineernimada iyo balaastikada leh heerar faddarayn sare leh., sida ABS, PS, iyo PET. Waxay ka kooban yihiin laba boolal oo isbar-bar socda oo isku jiho u wareegaya (wada-wareejin) ama jihooyin ka soo horjeeda (rogan-rogid) foosto dhexdeeda. Dib-u-warshadaynta balaastiigga ah ee isku-wareegaya ee mataanaha ah ayaa inta badan loo isticmaalaa dib u warshadaynta balaastigga sababtoo ah isku-dhafka iyo gudbinta sare.

3.1.1 Faa'iidooyinka ugu muhiimsan ee Twin-screw Extruders

Quudinta Walxaha fudud: 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 (caadi ahaan 1-5 daqiiqado) 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 (sida xasiliyayaasha, antioxidants, iyo midabeeyayaasha) 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, auto parts, iyo alaabta lagu ciyaaro. 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.
Caagagga Injineerinka: 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.
Kharash wax ku ool ah: 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, gaar ahaan, 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 Cufnaanta Hoose): 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).
Mugga Wax-soo-saarka: 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.
Miisaaniyadda: Twin-screw extruders are more expensive than single-screw extruders, both in terms of initial investment and maintenance costs. Sidaa darteed, enterprises with limited budgets may prefer single-screw extruders for general-purpose plastic recycling.
Isticmaalka Tamarta: 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, hufnaan, tamarta-badbaadinta, iyo wax-ku-oolnimada. 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 are equipped with advanced temperature control systems, including heating zones and cooling zones, to ensure precise control of the barrel and die temperature. This helps to avoid thermal degradation of the plastic and ensure complete melting and mixing.
Efficient Conveying and Mixing: The screw designs are optimized for waste plastic recycling, with enhanced conveying capacity and mixing capabilities. Twin-screw extruders feature co-rotating screws with optimized flight profiles to ensure superior mixing and homogenization, while single-screw extruders have specially designed screws to improve conveying efficiency for soft plastics.
Excellent Venting Performance: Twin-screw extruders are equipped with multiple venting ports to remove moisture, volatile gases, and air from the molten plastic, ensuring high-quality granules with minimal defects. The self-cleaning function of the venting section ensures efficient venting even with contaminated materials.
Energy-Saving Design: 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.
Hawl fudud iyo dayactir: 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, hoos u dhigista wakhtiga.
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. Tusaale ahaan, 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, oo ay ku jiraan 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, oo ay ku jiraan PP, PE, LDPE, ABS, iyo 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, reducing downtime and maintenance costs.
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:

Qaabka	Qulqulka gaarka ah (N.m/Cm³)	Awoodda matoorka ugu muhiimsan (Kw)	Output speed（rpm）	Slot depth ratio 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, oo ay ku jiraan PP, PE, LDPE, ABS, iyo 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, keenista wax soo saar sare iyada oo la dhimayo isticmaalka tamarta. 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, wax soo saarka sare, 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. Isla markaana, 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: Taxanaha HTE waxa uu leeyahay quwad macquul ah iyo habayn koronto, hubinta wax soo saarka xasiloon oo hufan xitaa marka la farsameynayo balaastikada leh heerar faddarayn sare leh ama sifooyin kala duwan. Extruders-ka mataanaha ah ayaa leh cufnaanta torque sare, iyaga oo ka dhigaya kuwo ku habboon farsamaynta balaastikada injineernimada sida ABS iyo PET, halka kuwa ka soo baxa hal-screw lagu hagaajiyo balaastikada jilicsan sida PP iyo PE.
Ikhtiyaarada Labada-xawaaraha ah ee Qaababka Qaybsan: Qaar ka mid ah moodooyinka taxanaha HTE waxay ku qalabaysan yihiin xulashooyinka laba-xawaaraha ah, u oggolaanaya hagaajinta dabacsanaan ee xawaaraha qulqulka si ay ugu habboonaato noocyada kala duwan ee balaastigga iyo shuruudaha wax soo saarka. Tani waxay balaadhisaa kala duwanaanshaha codsiga ee extruders, iyaga oo ka dhigaya kuwo ku habboon noocyo badan oo caag ah.
Iska caabinta xidhashada ee la xoojiyey: 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, xawaarihii xawaaruhu, cadaadiska extrusion, 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. The following table details the specific parameters:

Qaabka	Qulqulka gaarka ah (N.m/Cm³)	Awoodda matoorka ugu muhiimsan (Kw)	Output speed（rpm）	Slot depth ratio D0/Di	Suitable Plastics	Isku soo wada duuboo (kg/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, tuubooyinka, and injection-molded products.

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, oo ay ku jiraan PP, PE, LDPE, ABS, PS, iyo 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. Tusaale ahaan:

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, qalajiyaha, dabadhilifyo, 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 (sida biraha, warqad, and glass) as much as possible. Thoroughly clean the waste plastics to remove oil, dufan, iyo haraaga cuntada, 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 (120-160°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 (sida heerkulka, xawaarihii xawaaruhu, iyo cadaadiska extrusion) 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. Gabagabo

Waste plastic recycling granulation is a critical technology for realizing resource circulation and environmental protection, offering significant economic, deegaanka, 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, hufnaan, tamarta-badbaadinta, iyo wax-ku-oolnimada. 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, xakamaynta heerkulka saxda ah, 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, la isku halayn karo, 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.

Tusmada Tusmada