Kurba Tsofina da Fines a Tsarin Lissafi Na Ku

Mene ne Dusutu da Faini suka saita tsarin gudanar da abubuwa na plastik

Matsayin dusutu da faini wanda ke cibiyi da kankara abubuwan plastik na gudanar da abubuwa

Kudin kafin samun plastik suna zama mai gaba daya na kudin—kudin kore, kudin da suka daga kore, tsoho, da kudin da suka daga abinci—wanda suka rufe a cikin kudin da suka daga cuttin mai yawa. A cikin unit na granulation, kudin da suka daga interaction na rotor knives da stationary bed knives suka daga shiri na kudin da suka daga micro-particles, ta hanyar da suka daga conditions na mafi kyau. Polymers da suka daga brittle kamar PET bottle flake suna da kyau da kudin da suka daga dust formation. Blades da suka daga dull ko da suka daga misaligned suna sao kudin da suka daga bayani a cikin tearing ba a cikin slicing, wanda suka daga oversized screen apertures suna bada damar da suka daga partially cut fragments suka daga recirculate da suka daga break down don karanci. Rotor speeds da suka daga excessive suna sao kudin da suka daga friction da heat, wanda suka daga thermal embrittlement wanda suka daga sao kudin da suka daga dust generation. Don haka kuma, feed rates da suka daga inconsistent—ta hanyar da suka daga surging ko da suka daga starved—sun sao kudin da suka daga disruption na cutting chamber equilibrium, wanda suka daga variable granulate da kudin da suka daga elevated fines. Ta hanyar da suka daga collectively, wadannan factors suna sao kudin da suka daga granulation unit a cikin primary source na airborne dust da undersized particles.

Sakamakon tsawon lokaci na kayan aiki, lafiyar mai aiki, da ingancin extrusion

Ƙura da ke tattare a cikin motar tana sa kayan aiki su lalace, kuma hakan yana sa su daina aiki kuma su yi gyara mai tsada. Ƙananan ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙ A cikin babban taro, ƙurar filastik da ke cikin iska tana haifar da haɗarin ƙurar ƙura; doguwar ɗaukar mai aiki na iya haifar da haushi na numfashi. A cikin ruwa, ƙananan abubuwa suna lalata extrusion: ciyarwa mara daidaituwa yana haifar da canjin yanayin narkewa da rashin kwanciyar hankali, yana lalata daidaiton samfurin. Ƙananan abubuwa suna aiki ne a matsayin wuraren ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin Ko da a cikin ƙananan adadin na iya lalata tsabtace gani a cikin PET da aka sake amfani da shisaboda haka, kula da ƙananan ƙananan abubuwa yana da mahimmanci don aikace-aikace masu mahimmanci.

Ingantawa na'urar sarrafa filastik don ƙaramin ƙaramin ƙaramin ƙaramin ƙaramin ƙaramin ƙaramin ƙaramin ƙaramin ƙaramin ƙaramin ƙaramin ƙaramin ƙaramin ƙaramin ƙaramin ƙaramin ƙaramin ƙaramin ƙaramin ƙaramin ƙaramin ƙaramin ƙaramin ƙaramin ƙaramin ƙaramin ƙaramin ƙaramin ƙaramin ƙaramin ƙaramin ƙaramin ƙar

Sashe da kari: tsarin yin gaba, ƙwayar shafin, da tsarin yin gaba na kuma a cikin PET, HDPE, da PP

Kamfanin sashe na granulator suna da mahimmanci wajen kara yawa kuma kara ƙarfi. Don PET, kama kuma tsarin gaba daya na rotor a 20–25 m/s don kara yawa kuma kara dust; HDPE da PP suna iya zama da ƙarfi mai yawa, kuma suka taimaka cikin tsarin gaba daya na 25–30 m/s ba ta hanyar kara dust ba. Zabon screen ya kamata ya haɗa da aiki na polymer: screen na 10 mm yana kara yawa kuma kara karamin cutta a PET, amma screen na 8 mm yana haɗa da ƙarfi da karamin cutta don HDPE da PP. Karamin cutta ya kamata ya zama da kyau—karamin cutta mai yawa yana kara cutta mai yawa kuma kara dust. Bayanin kasuwa daga masu recycler na farko sun nuna cewa kuma karamin cutta na wasu abubuwan da suka haɗa da yadda ake amfani da su yana kara dust a 40% a lokacin da aka yi amfani da su a lokacin da suka haɗa da yadda ake amfani da su. A matsayin muhimmi, tsarin gaba daya na rotor da karamin cutta na screen suna haɗa da yadda ake amfani da su don kara yawa kuma kara dust; kuma karamin cutta mai yawa da karamin cutta na screen mai yawa yana kara yawa kuma kara dust, saboda hakan, karamin cutta ya kamata a saba da bayanin da suka haɗa da yadda ake amfani da su ba da karamin cutta mai yawa ba.

Makamashi na yadda aiki don bincike kuma gudanen kusurin da ke zama (misali: haɗin kofin, tsarin shafin)

Binciken da aka gudanen shine mafi kyau aikin gudanen kusurin da ke zama. Kofin da ba su dace ba suna tsofowa ba, amma suna kawo kofin da ba su dace ba kuma dust. Haɗin kofin da kara dacewa suka gudanen kowane 200 sa'atun aiki; haɗin da ba su dace ba alone zai iya kawo dust akan 15% ko kamar haka. Tsarin shafin kuma yana da mahimmanci wanda ya dace—shafin da suka gudanen ko suka canzawa suna ba da izini don kuskuren da suka fi kamar yadda ake so, wanda zai iya nufin kuskuren da sauran kuskuren da suka gudanen. Kashe shafin da suka gudanen daidai kuma gudanen shafin da ake kuskuren kowane lokaci don kula da kuskuren da suka gudanen. Amincewa ga wannan tsarin zai iya kawo kuskuren da suka dace daidai, yin dust da suka fi sama kara, kuma taimaka ga kwalitas na bayani kuma kariya na aikin.

Kokarin da suka hada da dust control don plastic recycling granulation units

Kudun da suka dawo mai saba, cyclones, da filters na cartridge masu kara yawa ga dust na plastic granulate

Kullum kari na tsayi da dust yana faruwa ne a wani lokaci. Hoods na tsayi da dust suna gaba daya na cutting chamber, screen discharge, da conveyor transfer points—su ya sa abubuwan da suka fofa a cikin ductwork kafin su ya sa hannu. Suna gina da high-velocity inlet slots, wadannan hoods suna taimaka wajen kari na dust a matsayin mafi kyawun kari ba su kari da daga cikin flow na material. A cyclone separator ya ci gaba daya na kari na dust ya ci gaba daya na particles mai ukuma (10–50 microns) ta hanyar centrifugal force, wanda ya kara kari na dust a final-stage filtration. A downstream cartridge filter da PTFE-coated media ta kari na dust mai ukuma (sub-micron) wanda ke ciki na PET da HDPE regrind—wanda ya taimaka wajen kari na dust a matsayin mafi kyawun kari ba su kari da cire a lokacin mafi kyau. Modular system designs suna taimaka wajen kari na dust a matsayin mafi kyawun kari ba su kari da cire a lokacin mafi kyau. Differential pressure monitoring ta taimaka wajen kari na dust a matsayin mafi kyawun kari ba su kari da cire a lokacin mafi kyau.

Ƙididdigar ƙididdigar ƙididdigar ƙididdigar ƙididdigar ƙididdigar ƙididdigar ƙididdigar ƙididdigar ƙididdigar ƙididdigar ƙididdigar ƙididdigar ƙididdigar ƙididdigar ƙididdigar ƙididdigar ƙididdigar ƙididdigar ƙidid

Ba za a iya musayar wuraren da za a iya rufe su ba, musamman tsakanin ruwan da ke cikin granulator da kuma layin da ke dauke da iska. Masu sarrafawa na iska na iska da kuma matattarar da aka haɗa da kyau suna ƙunshe da ƙananan abubuwa yayin da suke iyakance iskar oxygen. A cikin yankunan haɗari kamar loda silo, inda ƙurar filastik da ke da caji na iya samar da yanayin fashewa, tsabtace nitrogen yana rage yawan oxygen a ƙasa da iyakar ƙarancin oxidant (LOC), yana kawar da yiwuwar ƙonewa. Lokacin da aka haɗa shi da ƙasa, bututun bututu da haɗin kai mai kyau, wannan hanyar tana kawar da haɗarin haɗari da rage haɗarin fashewa. A lokacin fitar da granulator, wani shãmaki sauyi hade tare da gida shaye tabbatar da nan da nan kamawa na ƙura generated lokacin yankanmaintaining wani hadari, low-ƙura yanayi a kusa da naúrar da kuma goyon bayan yarda da OSHA da NFPA nagartacce.

Saba Daga Sabon Wannan

Kamar yaya yana zama matsala a cikin kayan kafa na plastic da suka dawo?

Yan kunya na dust yana zama dalilin yin gurba a kayan kafa, yin matsalar ala'ada na sakamako wajen matakan, kuma matsalar kudin a kayan kafa na extrusion. Dust mai kunya yana iya gurba kayan kafa, yin matsala ga matakan, kuma yin kudin kudin kayan kafa da suka dawo.

Yaya za a rarraba kayan kafa don hana dust kuma fines?

Kayan kafa na rotor da suka fiye, kayan kafa na screen, kuma kayan kafa na feed da suka fiye da suka dawo ga jinsi na polymer zai taimaka wajen hana dust. Rarrabawa ta hanyar zaman lafiya kuma tsarin tsari da suka dawo suna bukatar amincewa don kudin kudin.

Wane ayyukan rarraba suna taimaka wajen hana fines da suka dawo ne ga gurba?

Binciken daidaitawar ruwan wukake, kiyaye amincin allon, da tsabtace ɗakin yankan yana tabbatar da rarraba girman ƙwayoyin cuta daidai kuma yana iyakance samar da tarar da ba ta dace ba.

Ta yaya tsarin sarrafa ƙura ke aiki a cikin rukunin granulation na filastik?

Tsarin kamar hotuna masu kamawa, cyclones, da filtata na harsashi suna kawar da ƙurar iska a wurare daban-daban a cikin tsarin granulation. Tsarin ƙira yana ba da izinin keɓancewa bisa ga bayanan ƙwayoyin.

Me ya sa wuraren da aka rufe suke da muhimmanci don kāriya?

Wuraren canja wurin da aka rufe suna ƙunshe da ƙura kuma suna hana iskar oxygen shiga, rage haɗarin haɗari, ƙonewa, da fashewa. Hakanan suna taimakawa bin ƙa'idodin aminci kamar OSHA da NFPA.