Amsar Kullin Aduwa don Samunin Plastic

Amsar Ingilizinin Akustik don Samunin Plastic na Recycling

Ingilizinin akustik ta hanyar fahimta ta daga cikin wani samunin plastic na recycling ta nuna abubuwan da suka haifar da aduwa. Uku kamarin saiti na ingilizinin—hanyar samunin rotor, kofin da ke da insulation, da kuma hanyar kula da gudunmawa—su yi amali ta hanyar kariya don samunin da zai dace da kula da aduwa kuma da safe.

Rotors na V-Cut da Amurin Akustik na Hanyar Samunin Cut

Rotors na V-cut sun sauya knives na sarre da kuma yin cut na musamman a cikin wani hanyar scissor-like wanda ya yi cut na plastic ta hanyar shearing gradual a cikin length na blade ba tare da crushing a cikin single impact ba. Wannan ya haɗa cutting force a cikin arc mai yawa, yana canza high-frequency clatter zuwa hum mai kyau da ƙarami, kuma yana rage dramatically peak noise energy—lumfa ta hanyar initial material engagement. Traditional straight rotors suka yi sounds loud da percussive saboda kowa blade ya engage a lokacin da ke tsakanin. Rotor speed da knife clearance suna fine-tuned don samun match na material hardness: yin karami na cutting gap yana rage impact shock, wanda ke shugaban source na airborne noise. Wadannan adjustments suna gano root cause na most granulator noise, kuma suna rage sound pressure levels a source ba tare da yin compromise na throughput.

Enclosures na soundproof da double-layer insulated structures

Koofinai da suka dace kuma suka taimaka wajen tsara sautin da aka fuskantar a cikin shiri na mutum ya yi amfani da ita. Koofinai na biyu da suka dace suka amfani da kwalla mai gaba—wanda yana da mass-loaded vinyl ko panels na composite—kuma kwalla na biyu ta hanyar metal mai zuba, da suka fara daga baya da kwalla mai sautin da aka fuskantar a cikin shiri na open-cell acoustic foam ko mineral wool. Wannan kwalla na mass-air-mass yana nufin tsara kuma kawo sautin a cikin kowane frekuwansi. Kwalla na resilient sun fara daga baya kwalla domin kare kariya na kariya, yadda kwalla na kira da kwalla na kura suka amfani da gaskets na magnetic da hinges na mafi kyau don kare kariya na sautin. Idan aka saba koofinai a yadda yake daidai, zasu iya tsara sautin da 10–15 dB(A)—wanda ke taimaka wajen samun kariya na OSHA ga 8 awa na amfani.

Kwalla na kariya na kariya da kwalla na hopper na iya canza

Rarrabawar da ke tattare da ginin yana da muhimmanci ga yawan hayaniya, har ma idan an sarrafa sautin da ke cikin iska. Tsarin katako tare da haɗin elastomeric ko masu keɓancewa na bazara suna raba granulator daga bene, yana dakatar da ƙaramin ƙarar ƙarar ƙarar ƙarar ƙarar ƙarar ƙarar ƙirar ƙirar ƙirar ƙirar ƙirar ƙirar ƙirar ƙirar ƙirar ƙirar ƙirar ƙirar ƙirar ƙirar ƙirar ƙirar ƙirar ƙirar Ana zaɓar kayan haɗi bisa ga nauyin injin da kuma yawan aiki. Tsarin kwalliyar da za'a iya daidaitawa yana rage hayaniya ta hanyar kawar da karkatar da bangarorin: ƙuƙwalwa, masu daidaitawa suna hana ɓarna daga yin tsalle da haifar da amo, yayin da daidaitaccen sarrafa abinci yana rage nauyin girgiza wanda ke haifar da karuwa. Waɗannan abubuwan suna hana jijiyoyin da ke jikin ginin yin rawa, suna taimaka wa kayan su daɗe kuma suna rage lokacin da ake bukatar a kula da su.

Mafi kyawun Ayyukan Ayyuka don Kula da Ayyukan Rashin Sauti a cikin Rashin Ruwa na Plastics Recycling Granulation Units

Kuɗin ƙaramin sautin da ke zama wani abu da ke nufin kuma aiki mai tsari—ba tare da ingantin farko ba. Maki biyu na al’ada na amfani da ilimi—tsarin aiki da kula ta hanyar gudunawa—suka iya kuɗin sautin da suka zama ƙasa daga 80 dB(A) domin kuma kula da karamin aiki da karamin zaman da jihadi na abubuwa.

Maki na Tsarin Karamin Kwamfuta (VFDs) don Tsarin Karamin Sautin Rotor da <80 dB

Motsawa mai sauyawa (VFDs) yana daidaita saurin rotor zuwa nauyin kayan aiki, yana guje wa saurin saurin saurin saurin saurin saurin saurin saurin saurin saurin saurin saurin saurin saurin saurin saurin saurin saurin saurin saurin saurin saurin saurin saurin saurin sa A cikin binciken kayan aiki na 2023, sake gyara granulator tare da VFD ya rage matsakaicin amo daga 86 dB ((A) zuwa 78 dB ((A) a mita 1 kawai ta hanyar iyakance saurin rotor a lokacin ƙananan lokacin wucewa. VFDs kuma suna ba da damar farawa mai laushi wanda ke kawar da kwatsam na kwatsam babban dalilin ɓarna. Shirya drive don gudu kawai a m gudun da ake bukata domin tsabta yankan hana turbulence da ruwan wukake flutter, kiyaye naúrar cikin OSHA ta 85 dB ((A) aiki iyaka da EU Directive 2003/10/EC m daukan hotuna aiki darajaryayin rage amfani da makamashi da har zuwa 15%, da Rahoton Ingantaccen Masana'antu 2024 .

Kulawa na rigakafi: Daidaita Wuka, Lubrication na Bearing, da Kula da Wear

Sautin murya sau da yawa yana nuna rashin daidaituwa na inji. Wuka marasa daidaituwa suna haifar da rawar jiki na rotor, suna watsa rawar jiki ta cikin tsarin kuma suna haskakawa da ƙananan sauti. Dynamic daidaitawa na rotor gungu kowane 500 aiki hours rike rashin daidaito kasa 0.5 g·mm/kga bakin iyaka hade da 68 dB ((A) amo rage, bisa ga Cibiyar Kula da Lafiya ta Injin 2023 . Lafiya ta ɗaukar hoto ma tana da mahimmanci: busassun ko pitted bearings suna kuka da kuma ƙara ƙarfin tsari. Tsarin lubrication na tsakiya tare da saka idanu na sauti yana gano lalacewa da wuri. Hakanan, saka idanu kan fuska da gefen ruwan wuta yana hana yankan wuya magana ruwan wuta ya tsage maimakon yankan. Bayanai na filin daga babban masana'anta ya nuna maye gurbin ruwan wukake a 0.3 mm gefen lalacewa (a kan 0.5 mm) rage taron ƙarar amo da kashi 40% a cikin watanni 12.

Tsarin bin ka'idoji: Ka'idojin amo da inganci don raka'o'in granulation na sake amfani da filastik

Talabatun OSHA 29 CFR 1910.95 da Salo EU 2003/10/EC a tsakiya ta 1-Meter

Kudin kufi na yadda ake gudanen kufin a lokacin gudanen kufin na plastic recycling granulation units an bayyana su ne da OSHA 29 CFR 1910.95 da Salo EU 2003/10/EC. OSHA ya saba kudin kufin da aka iya gudanen shi ne 90 dB(A) don 8-hour time-weighted average, da 5 dB exchange rate. Salo na EU ya saba kudin kufin da ke baya da kudin kufin da ke cikin, wanda su ne 80 dB(A) da 85 dB(A), kuma ya saba kudin kufin da ke cikin da 135 dB(C). Saboda granulators suna gudanen kufin 90–100 dB(A) a tsakiya ta 1 meter, kudin kufin da ke cikin ba sufi kamar yadda ake fahimta. Kudin kufin da ke cikin—kamar yadda ake fahimta da soundproof enclosures da vibration-dampened frames—su ne da muhimmi don gudanen kufin da ke cikin da operator a daga kudin kufin da ke cikin da salo. Idan ba su gudanen kufin, alama su zai iya gudanen kufin da ke cikin da hearing conservation programs, wanda zai iya taimaka da kudin kufin da ke cikin da alama da kudin kufin da ke cikin da mutane.

Kudin kufin da ke cikin da kudin kufin da ke cikin da kudin kufin da ke cikin

Tabbatar da ƙididdiga daidai ya bi ISO 11202, wanda ya ƙayyade auna mita 1 daga cikin murfin na'ura ta amfani da ma'aunin ma'aunin sauti na Class 1 wanda aka sanya a tsayin kunne mai aiki. Ana yin rikodin matakin sauti na A-da aka daidaita (LAeq) a cikin cikakken tsarin samarwa. Bayan kowane gyare-gyarekamar shigar da rotor na V-cut ko ɗakin ɗaki biyuana maimaita wannan yarjejeniya don ƙididdige ƙarancin. Ragewa da aka tabbatar dole ne ya nuna ci gaba da amo na aiki ≤ 80 dB ((A) a ƙarƙashin nauyin al'ada, tabbatar da yarda da ƙananan ƙimar aikin ɗaukar hoto da tabbatar da ingancin aikin injiniya.

Tambayoyi game da Injiniyan Acoustic a cikin Rashin Tsarin Ruwa na Plastics

Me ya sa 'yan kwalliya masu ƙwanƙwasawa suka fi kyau fiye da wuka mai sauƙi?

Masu juyawa na V-cut suna yanke filastik a hankali a tsawon tsawon ruwan, suna rage yawan sautin sauti da rage ƙarfin amo idan aka kwatanta da masu juyawa madaidaiciya, waɗanda ke haifar da sauti mai ƙarfi, mai ƙarfi.

Yaya ingancin rufin da ba ya sa sauti?

Ko’i na sautin da aka kafa su tare da kyakkyawan fahimtar, suna iya samun gudun yadda sautin ya dace 10–15 dB(A) ta hanyar kuskuren sautin da ke cikin hawayi da fuskacen energy a farko biyu na frekuwensi.

Wane shi ne ayyarar da aka buƙata a nuna gudun sautin?

Ayyarar da aka buƙata, kamar yin balancing na knife, kuma kuskuren na bearing da kuskuren na wani abu da ya zuba, yana kusantar gudun sautin ta hanyar kuskuren da ayyarar da mabudin da ke baiwa da sautin ta hanyar kuskuren da sabonin da ke baiwa da resonance na jinsi da vibration.

Wane shi ne VFDs ke taimaka wajen kuskuren da gudun sautin?

VFDs suna ba da izini na yin control na rotor speed da soft-start ramps, kuma suna kuskuren sautin ta hanyar kuskuren da motor speed a lokacin da ke ciki kusa da karami, kuma kuskuren da blade turbulence, kuma suna tabbatar da kuskuren da OSHA da EU noise regulations.

Shin ISO 11202 shine wane abu, kuma yaya yake muhimmi?

ISO 11202 ta bayyana alama na yin amfani da sound level meters don yin amfani da sautin a 1 meter, kuma ta tabbatar da kuskuren da amfani da sautin don kuskuren da gudun sautin da kuma ayyarar da inggiliya.