Indlela inkqubo ye-extrusion inika ngayo iplastiki ehlaziyiweyo ubomi besibini

Indlela inkqubo ye-extrusion inika ngayo iplastiki ehlaziyiweyo ubomi besibini

Unganika iplastiki endala injongo entsha ngokukhupha iplastiki esetyenzisiweyo. Ekuqaleni, uhlela kwaye ucoce imathiriyeli. Okulandelayo, uyawuqhekeza ube ngamaqhekeza amancinci kwaye unyibilike. Iplastiki enyibilikisiweyo idlula kumatshini oyibumba ibe ziimo ezintsha. Le nkqubo ikunceda ukunciphisa inkunkuma kunye nokuxhasa iplanethi ecocekileyo.

Izinto eziphambili zokuThatha

• I-Extrusion recycling itshintsha iplastiki endala ibe yinto entsha. Oku kunceda ukunciphisa inkunkuma kwaye kugcine iplanethi icocekile.

• Ukuhlela kunye nokucoca iplastiki kubaluleke kakhulu. Kufuneka ukhuphe nantoni na engeyoyakhe. Oku kunceda ukwenza iplastiki esetyenzisiweyo yomelele kwaye ikhuseleke.

• Kubalulekile uku lawula ubushushu xa kunyibilika iplastiki. Ubushushu obufanelekileyo bunqanda iplastiki ekubeni yonakale. Oku kukwagcina imveliso yokugqibela ilungile.

• Ukujonga umgangatho kwinqanaba ngalinye libalulekile. Oku kuqinisekisa ukuba iplastiki esetyenzisiweyo ikhuselekile kwaye yomelele.

• Ukusebenzisa iplastiki esetyenzisiweyo konga amandla kunye nemithombo yendalo. Oku kuyenza ibe lukhetho olulungileyo lokusingqongileyo.

Ukulungisa iPlastiki eRecycled

Ukuqokelela nokuHlela

Uqala ngokuchola iplastiki esele isetyenzisiwe kumakhaya nakumashishini. Uphinda uyiqokelele kumaziko okurisayikilisha. Okulandelayo, ulungisa iplastiki. Uyahlula ngokohlobo, umbala, kunye nomgangatho. Eli nyathelo libalulekile. Iiplastiki ezahlukeneyo ziyanyibilika kumanqanaba obushushu ahlukeneyo. Ukuba uyazixuba, imveliso entsha isenokungomelelanga okanye ibonakale ilungile. Ngelixa uhlela, ususa izinto ezingafanelekanga ukuba zibekho, njengaye:

• Iintsimbi ezinzima (njengelothe, aluminiyam, kunye nezinc)

• Izongezo zeplastiki (njengeeplasticizers kunye neflame retardants)

• Izingcolisi eziphilayo ezizingisileyo (POPs)

• Iihydrocarbons ezinevumba elimnandi lePolycyclic (Ii-PAHs)

• Iikhompawundi eziphilayo eziguquguqukayo (IiVOCs)

• Umba othile

• Iiplastiki ezincinci

• Izinto ezingadityaniswanga ngabom (COFA)

Ezi zinto zingafunwayo zinokuvela kwiplastiki yokuqala. Zisenokuvela kwakhona ekusetyenzisweni ngokutsha okanye ekuqokeleleni inkunkuma. Ukuba ubashiya ngaphakathi, banokulimaza abantu kunye nendalo. Kwakhona benza kube nzima ukurisayikilisha iplastiki kwizikhongozeli zokutya.

Ukucoca kunye nokomisa

Emva kokuhlelwa, ucoca kwaye uyomise iplastiki. Usebenzisa oomatshini kunye namanyathelo ukwenza iplastiki icoceke. Nantsi inkqubo yokucoca eqhelekileyo:

1. I-Bale breaker yohlula iibhali ezinkulu zibe ngamaqhekeza amancinci.

2. I-pre-sorter ithatha izinto ezinkulu ezingafunwayo.

3. Umsusi ileyibhile ukhupha iilebhile kunye neglu.

4. I-crusher iqhekeza iplastiki ibe ngamaqhekeza amancinci.

5. Iwasha eshushu isebenzisa amanzi ashushu ukuhlamba ubumdaka.

6. Itanki ye-sink-float yohlula iplastiki kwinkunkuma ekhaphukhaphu.

7. Iwasha yefriction ikhuhla ubumdaka obuqinileyo.

8. Itanki yokuhlambulula inika ukucoceka kokugqibela ngamanzi amatsha.

9. I-Centrifugal dewaterer ijikelezisa amanzi angaphezulu.

10. I-thermal dryer yomisa ama-flakes ekufuma okufanelekileyo.

11. Ulawulo lomgangatho luhlola imveliso egqityiweyo.

Ungasebenzisa oomatshini bokumisa abahlukeneyo. Nantsi i itafile enokhetho oluthile:

Pelletizing kunye nokuxuba

Xa iplastiki icocekile kwaye yomile, uyijika ibe yipellets ezincinci. I-Pelletizing yenza kube lula ukuyisebenzisa kamva. Ngamaxesha athile, wena Xuba ezi pellets zisetyenzisiweyo ngeepellet zeplastiki ezintsha. Oku kunceda ukwenza imveliso yokugqibela ibengcono. Ukuxuba kunokutshintsha indlela yomelele kwaye intle imveliso ibonakala ngayo. Nantsi into omawuyazi:

Usebenzisa imathiriyeli esetyenzisiweyo ukwenza izinto ezintsha. Kufuneka ujonge umgangatho kwinqanaba ngalinye. Ukulungiselela kakuhle kukunceda ufumane iziphumo ezilungileyo kwi-extrusion.

Ukuqhawula kunye nokunyibilika

Ukuqhekeka kwiiFlakes

Uqhekeza ukucoceka, iplastiki eyomileyo ibe ngamaqhekeza amancinci. I-Shredders isike iplastiki ibe yi-flakes. Ezi flakes zikhangeleka ngathi ziitshiphusi ezincinci. Ukuqhawula kunceda iplastiki inyibilike ngokukhawuleza. Kwakhona kwenza kube lula ukuphatha. Ungasebenzisa i-shaft enye okanye i-shaft-shaft shredders. Umatshini ngamnye usebenza ngokukhawuleza. Iiflakes zihlala zilingana. Iiflake ezifanayo zinceda inyibilika ihlale igudile. Oku kunciphisa ithuba lokuvaleka kwi-extruder.

Ingcebiso: Iiflake ezincinci ziyanyibilika ngokukhawuleza kwaye zilungelelane ngakumbi. Oku kwenza ukuba iplastiki esetyenzisiweyo ibengcono.

Ukunyibilika kunye nokuNciphisa

Emva kokuqhawula, ubeka iiflakes kwi-extruder. I-extruder ifudumeza iplastiki. Ijika ibe lulwelo olungqindilili. Kufuneka ususe ukufuma kunye neegesi kwi-melt. Ukuba ubashiya ngaphakathi, amaqamza okanye iindawo ezibuthathaka zinokuvela.

Iinkqubo zokungenisa umoya zicoca iplastiki enyibilikisiweyo. Kukho iindidi ezimbini eziphambili zevent: umoya kunye ne-vacuum. Ezi festile zikhupha iigesi kunye nokufuma njengoko iplastiki inyibilika. Ukuhluza kubamba ungcoliseko oluqinileyo. I-Melt homogenization ixuba iplastiki. Oku kuyenza ibonakale kwaye ivakale igudile.

Nantsi itheyibhile ebonisa indlela inkqubo nganye esebenza ngayo:

Ungasebenzisa iiteknoloji eziphambili ukuphucula degassing. Ezinye iinkqubo zisebenzisa i-vacuum kwaye zisusa ukungcola okungakumbi. Apha zi imizekelo emithathu:

Venting and degassing systems keep your recycled plastic clean and strong. You get better products and help protect nature.

Extruding Recycled Plastic: The Process

Feeding Pellets into the Extruder

You start the extrusion process by feeding pellets into the extruder. These pellets come from recycled plastic waste that you have cleaned and pelletized. The extruder is a machine with a long barrel and a rotating screw inside. You pour the pellets into a hopper at the top. The screw pulls the pellets forward. As the pellets move, they heat up and begin to melt. You control the speed and temperature to make sure the pellets melt evenly. If you use the right temperature profile, you avoid damaging the recycled plastic. Most recycled plastics melt between 180 and 230°C. You must watch the temperature closely. If you set it too high, the plastic can break down and lose strength. If you set it too low, the pellets may not melt fully. Good temperature control helps you get strong and smooth new products.

Ingcebiso: Always check the temperature zones in your extruder. Proper melting keeps your recycled plastic strong and prevents defects.

Plasticizing and Pushing Through the Die

Once the pellets melt, the screw mixes the plastic into a thick, uniform liquid. This step is called plasticizing. You want the melt to be smooth and free of bubbles. The extruder pushes the melted plastic toward the die. The die is a metal plate with holes or shapes. Iplastiki ihamba ngedayiti kwaye yenza imilo eqhubekayo. Unokwenza imibhobho, amaphepha, okanye ezinye iiprofayili. Ubume buxhomekeke kwidayiti oyisebenzisayo. Ngamaxesha athile, iplastiki enyibilikisiweyo iyadumba emva kokuba iyishiyile ifayiti. Oku kubizwa ngokuba kukudumba. Kufuneka uyicwangcisele le nto xa uyila idayizi lakho. Ukuba ulawula inkqubo ye-extrusion kakuhle, ufumana iimveliso ezinobungakanani obufanelekileyo kunye nokumila.

Nantsi itheyibhile elula ebonisa indlela iprofayile yobushushu obuchaphazela ngayo umgangatho weplastiki ehlaziyiweyo:

Ungalungisa isantya se-screw kunye noxinzelelo lokufa ukuphucula ukuxuba kunye nokuhamba. Ukuxuba okulungileyo kukunceda uphephe iziphene kwaye wenze iimveliso zakho ezintsha zibukeke ngcono.

Ukupholisa kunye nokusika

Emva kokuba iplastiki ishiye idayiti, iseshushu kwaye ithambe. Kufuneka uyipholise ngokukhawuleza ukugcina ukumila kwayo. Iindlela zokupholisa ziquka iitanki zamanzi, umoya, kunye neerola ezipholileyo. Kwimibhobho kunye neeprofayili eziqinileyo, usebenzisa iitanki zamanzi ukupholisa kunye nokuqinisa i-extrudate. Ngamaxesha athile, usebenzisa ivacuum ukunceda ukugcina ubungakanani buchanekile. Ngamashiti, usebenzisa iirola ezipholileyo ukuthambisa kwaye upholise iplastiki. Amatanki okupholisa aneenkqubo zokulawula ubushushu. Uyakwazi ukunyenyisa ezi nkqubo ukugcina izinga lokupholisa lilungile. Amanye amatanki akumgangatho ophezulu akuvumela ukuba utshintshe ubushushu phakathi kwe-1°C. Oku kukunceda wenze iimveliso ezinobukhulu obuchanekileyo.

Usika iplastiki epholileyo ibe ngamaqhekeza afanayo. Iinkqubo zokusika zihambelana nesantya somgca we-extrusion. Oku kugcina ukusikeka kucocekile kwaye kuthintele ukonakala. Ungasebenzisa isarha, iimela, okanye abasiki abaqhutywa yi-servo. Abanye abasiki benza ukuba 1,000 ukusikwa ngomzuzu. Unako ukusika imibhobho kunye neeprofayili zibe ubude obumiselweyo. Uyakwazi ukuvuthela amaphepha kwimiqulu. Ukuba unenkcitho kwinkqubo ye-extrusion, ungayibuyisela kwaye uyibuyisele kwi-extruder. Oku kunciphisa inkunkuma yeplastiki kwaye kwenza inkqubo yakho isebenze ngakumbi.

Phawula: Ukupholisa kunye nokusika ngamanyathelo aphambili kwi-extrusion yeplastiki. Bakunceda wenze iimveliso ezintsha ezinobungakanani obufanelekileyo kunye nokumila.

Usebenzisa i-extruding yeplastiki esetyenzisiweyo ukujikela inkunkuma endala iimveliso ezintsha eziluncedo. Ulawula inkqubo ye-extrusion ukuze womelele, icocekile, kunye neziphumo ezifanayo. Ungaphinda usebenzise inkunkuma kwi-extrusion kwaye uyisebenzise kwakhona. Oku kwenza iplastiki extrusion indlela smart ukunciphisa inkunkuma zeplastiki nokukhusela okusingqongileyo.

Ukukhutshwa kwePlastiki kunye noLwakhiwo lweMveliso

Ukubunjwa kweeMveliso eziNtsha

I-extrusion yeplastiki ikuvumela yenza iimveliso ezininzi ezahlukeneyo. Unokwenza zombini izinto ezincinci nezinkulu. Iplastiki esetyenzisiweyo inokuba yimibhobho, iibhodi, Iintsika zocingo, iifilimu, kunye nezixhobo zendawo yokudlala. Iinkampani ezininzi zisebenzisa le nkqubo kuba isebenza ngalo lonke ixesha kwaye ayichithi xesha lininzi. Ungatshintsha iifa kunye nezixhobo ukuze ufumane iimilo ezikhethekileyo. Oku kukunceda wenze oko abantu bakufunayo kwaye uyile iimveliso ezilungele iplanethi. Inkqubo kwakhona ikuvumela ukuba usebenzise iplastiki esetyenzisiweyo njengeyona nto iphambili. Oku kuxhasa isixokelelwano sesetyhula kunye nokusika inkunkuma yeplastiki.

Imarike yeemveliso zeplastiki esetyenzisiweyo ikhula ngokukhawuleza. KuMntla Merika, abantu baphinda bagaya 5 Izigidi zeetoni zeplastiki ngaphakathi 2023. Abantu abaninzi bafuna iimveliso eziluhlaza, kunye noomatshini abatsha banceda ukwenza izinto ezilungileyo ngeplastiki esetyenzisiweyo.

Ulawulo lwemeko

Kufuneka uhlolwe umgangatho olungileyo ukugcina iimveliso zakho zikhuselekile kwaye zomelele. Inyathelo ngalinye ekwenzeni iimveliso zeplastiki zineetshekhi zokususa izinto ezimbi kunye nokugcina iplastiki icocekile. Nantsi itheyibhile enomgangatho wokutshekishwa okuqhelekileyo:

Iigranule zeplastiki ezisetyenzisiweyo zinokuba ngaphantsi nakwiplastiki entsha. Iplastiki entsha ivela kwi-oyile kunye negesi kwaye ihlala ifana. Iplastiki esetyenzisiweyo ingatshintsha amandla okanye umbala kancinane, kodwa usenokuyisebenzisa kwizinto ezininzi.

IiNzuzo zokuZinza

I-extrusion yeplastiki inceda iplanethi ngeendlela ezininzi. Xa usebenzisa iplastiki esetyenzisiweyo, ugcina imithombo yendalo kwaye wenze inkunkuma encinci. Le nkqubo isebenzisa amandla amancinci kunokwenza iplastiki entsha ngeoli. Ukwenza izinto ngeplastiki esetyenzisiweyo kunokusetyenziswa 30% ukuya 70% amandla amancinci. Ukurisayikilisha itoni enye yeplastiki kusindisa malunga 5,774 kWh amandla kunye 16.3 imiphanda yeoli. Kwakhona wenza igesi encinci ye-greenhouse kwaye ugcine iplastiki ngaphandle komhlaba namanzi.

Unokunceda uqoqosho lwesetyhula ngokwenza iimveliso zibe lula ukuzisebenzisa kwakhona kunye nokusebenzisa imibono eluhlaza. Ukwenza iimveliso zeplastiki kufutshane ekhaya unciphisa ungcoliseko lokuthunyelwa kweenqanawa. Ngokuchola iplastiki esetyenzisiweyo, unceda ukwenza ihlabathi licoceke kwaye libe luhlaza.

Unceda iplastiki endala ibe luncedo kwakhona ngokuxhasa i-extrusion recycling. Le nkqubo itshintsha iplastiki esetyenzisiweyo kwizinto ezintsha. Igcina amandla kwaye inciphisa inkunkuma. Iinkampani ezininzi zisebenzisa izinto ezihlaziyiweyo kunye noomatshini abasebenzisa amandla amancinci. Oku kunceda ukuthoba ungcoliseko.

Izibonelelo ze-Federal kunye nemithetho elungileyo inceda abahlaziyi baphinde bakhule kwaye bazame imibono emitsha.
Ungakhetha iimveliso zeplastiki ezisetyenzisiweyo kwaye uncede ukukhusela iplanethi. Lonke ukhetho olwenzayo lunceda ukudala ikamva elicocekileyo neliluhlaza.

FAQ

Zeziphi iintlobo zeplastiki onokuthi uzisebenzise kwakhona nge-extrusion?

Ungaphinda usebenzise iintlobo ezininzi, njenge-PET, HDPE, I-LDPE, kunye nePP. Ezinye iiplastiki, njengePVC okanye i-polystyrene, kufuneka inkathalo ekhethekileyo. Soloko ujonga ikhowudi yokurisayikilisha kwinto phambi kokuba uqalise.

Ngaba iplastiki esetyenzisiweyo ilahlekelwa amandla emva kokukhutshwa?

Iplastiki esetyenzisiweyo inokuphulukana namandla athile. Amatyathanga epholima amafutshane abangela oku. Ungaxuba iipeliti ezihlaziyiweyo kunye neplastiki entsha ukuphucula amandla. Iitshekhi zomgangatho kukunceda ufumane iziphumo ezingcono.

Ngaba ungasebenzisa iplastiki esetyenzisiweyo kwizikhongozeli zokutya?

Ungasebenzisa iplastiki esetyenzisiweyo kwizikhongozeli zokutya ukuba uyayicoca kwaye uyayicoca kakuhle. Oomatshini abakhethekileyo kunye nemithetho engqongqo igcina iplastiki ikhuselekile kuqhagamshelwano lokutya. Soloko ujonge iilebhile ezikhuselekileyo ekutyeni.

Wazi njani ukuba imveliso isebenzisa iplastiki esetyenzisiweyo?

Jonga iisimboli zokurisayikilisha okanye iilebhile kwimveliso. Ezinye iinkampani ziprinta ipesenti yomxholo osetyenzisiweyo. Unokuphinda ubuze umthengisi okanye ujonge iwebhusayithi yenkampani ngeenkcukacha ezithe vetshe.