Guduro yashi magani tsari

Guduro yashi magani tsari
Tsarin gyaran yashi na guduro (yawanci ana nufin ɗibar yashi tare da manne irin su guduro na fure ko resin alkaline phenolic) ɗaya ne daga cikin mahimman fasahohin da ake yin simintin gyaran kafa na zamani. Babban burinsa shine a sake sarrafa shi yadda ya kamata, sabuntawa, da sake amfani da tsohon yashi don rage farashi, tabbatar da ingancin simintin, da rage gurɓatar muhalli.
Ba kamar yashi na silica gel ba, fim ɗin manne da yashi na resin yashi zai yi chaji kuma ya zama gagaru bayan an zuba, amma ba ya ɓace gaba ɗaya. Sabili da haka, ainihin tsarin jiyya shine cire fim ɗin resin inert da ƙazanta a saman tsofaffin ƙwayoyin yashi.
Anan ga cikakken tsarin jiyya da kayan aiki masu mahimmanci don yashin guduro (ɗaukar mafi yawan amfani da resin resin kai{0}} yashi mai ƙarfi a matsayin misali):
1. Core tsari kwarara: Cikakken "yashi sake zagayowar"
Tsarin samar da yashi na yau da kullun shine tsarin madauki -, kamar haka:
Tsohuwar yashi → Crushing → Rabuwar Magnetic → Nunawa → Farkowar Farko → Sake farfadowa na biyu → Tsarin zafin yashi → Hadawa → Casting → Cire Sand → Tsohon yashi
2. Cikakken bayani game da kowane tsari da kayan aiki masu mahimmanci
1. Cire yashi da sashin magani kafin{1}
Makasudi: Don raba simintin gyare-gyare daga tubalan yashi da yin tsarkakewa na farko.
Mabuɗin kayan aiki:
* Injin cire yashi mai girgiza / Crusher: karya manyan yashi don raba shingen yashi daga simintin gyare-gyare da akwatunan yashi.
* Magnetic Separator (multi{0}tsarin matakin): Yawancin lokaci saiti da yawa (kamar bayan cire yashi da kuma kafin sabuntawa) akan layi, yana kawar da ƙazantattun ƙarfe na ƙarfe (kamar walƙiya, wake, ƙusoshin ƙarfe, da sauransu) don kare kayan aiki na gaba.
* Allon jijjiga: Cire abubuwan da ba {{0}maganin maganadisu ba kamar su cores, tubalan katako, zanen filastik, da sauransu daga cikin yashi.
2. Sashin sabunta yashi (cibiya)
Wannan shine mabuɗin don ƙayyade ingancin yashi da aka sabunta da kuma farashin tsarin. Farfaɗowar yashi na zamani gabaɗaya yana ɗaukar “sabuwar busasshen inji”, zuwa kashi biyu ko fiye da matakai:
Farko na Farko (pre{0}}sabuntawa / farfadowa na farko):
* Maƙasudi: Ta hanyar rikici mai tsanani da karo, cire mafi yawan (kimanin 70-80%) na fim ɗin guduro mai gatsewa a saman sassan yashi.
* Kayan aiki mai mahimmanci:
Na'ura mai girgiza murkushewa: Yana da aikin murkushewa da na farko. Ta hanyar girgiza, ɓangarorin yashi suna karo da juna.
Na'ura mai sabuntawa ta Centrifugal: Yana amfani da babban jujjuyawar sauri{0} na rotor don aiwatar da kwararar yashi, yana haifar da tasiri mai girma da gogayya tsakanin ɓangarorin yashi da lalacewa{2}}launi mai juriya, wanda a halin yanzu shine mafi al'ada kuma ingantaccen kayan aikin sabuntawa na farko.
Sake farfadowa na biyu (sabuntawa mai kyau):
* Makasudin: Ci gaba da cire sauran fim ɗin guduro da foda mai kyau, kuma a daidaita ɓangarorin yashi don rage adadin guduro da aka ƙara da inganta haɓakar yashi mai gyare-gyare.
* Kayan aiki mai mahimmanci:
Injin sabunta tasirin kwararar iska: Yana amfani da iskar mai girma{0}} (yawanci daga fan) don fitar da ɓangarorin yashi don yin karo da ƙarfi a cikin ɗakin farfadowa, yana yin "ci karo mai laushi" don zagaye sassan yashi. Wannan shine jigon farfadowa na sakandare.
Injin sabunta juzu'i: Ta hanyar inji don sa barbashi yashi yayi karo da yawa.
Biyu{0}}mai sanyaya faifai / Ruwa{1}}garuwa mai sanyaya: Sauran kayan sanyaya na zaɓi.
3. Sashin daidaita yanayin zafin yashi (maɓalli don tabbatar da ingancin yashi)
Manufar: Maganin warkewar guduro yana da matuƙar kula da zafin jiki. Yawan zafin jiki na yashi da aka sabunta sau da yawa yana da yawa (zai iya wuce digiri 40-50 a lokacin rani ko lokacin ci gaba da samarwa), kuma dole ne a sanyaya shi kuma a daidaita shi a cikin madaidaicin kewayon digiri na 25-35 don tabbatar da kwanciyar hankali na adadin adadin resin da kuma saurin warkewa a cikin tsarin hadawa na gaba.
Mabuɗin kayan aiki:
* Mai sanyaya gado mai tafasa: Kayan aikin sanyaya da aka fi amfani dashi. Busa cikin iska mai sanyi don sanya barbashi yashi a cikin yanayin tafasa mai ruwa, ta hanyar cikakkiyar hulɗa da iska don musayar zafi, yayin cire danshi da ɗan foda mai kyau. Yawancin lokaci sanye take da tsarin sarrafa zafin jiki ta atomatik.
* Biyu{0}}mai sanyaya faifai/Ruwa{1}}sanyaye: Sauran kayan sanyaya na zaɓi.
4. Sashin gyare-gyare da gyare-gyare Maƙasudi: Haɗa yashin da aka sake sarrafa wanda aka sarrafa (tare da sabon yashi da aka ƙara daidai gwargwadon asarar) tare da resins da magunguna don samar da yashi mai gyare-gyaren da za a iya amfani da shi don yin gyare-gyare.
Mabuɗin kayan aiki:
* Yashi mai ci gaba: Mafi yawan amfani da shi. Irin su babban nau'in yashi mai girma - na'ura mai juyi, tare da babban ƙarfin haɗuwa da daidaituwa, kuma yana iya haɗa kai tsaye tare da layin gyare-gyare. Babban sa shine sarrafa daidai adadin adadin resins da masu warkarwa (yawanci 0.8% -1.5% na nauyin yashi).
5. Yashi ajiya da tsarin isarwa
Makasudi: Haɗa tashoshi daban-daban da ajiya don buffering.
Kayan aiki: Yashi kwandon ajiya, lif bokiti, bel conveyors, pneumatic isar da tsarin, da dai sauransu.
III. Mahimman alamun fasaha na tsarin sake amfani da yashi na guduro
Tsarin sake amfani da nasara dole ne ya sarrafa abubuwan da ke biyowa:
Resin kona hasara (LOI): Maɓalli mai nuna alama don auna ragowar abubuwan halitta. Ƙananan mafi kyau, layukan sake amfani da inganci masu inganci na iya sarrafa shi a 1.5%-2.5%.
Fine foda abun ciki (PD): Kai tsaye rinjayar ƙarfi da permeability na gyare-gyaren yashi. Yana buƙatar sarrafa shi a<0.5%.
Yashi zazzabi: Dole ne ya kasance barga a 25-35 digiri.
Ƙimar PH (don yashi resin phenolic): Yashin da aka sake yin fa'ida ya kamata ya zama mai rauni acidic don sauƙaƙe maganin guduro.
Rarraba girman barbashi: Kula da kwanciyar hankali don guje wa yashi mai kyau da yawa ko kaɗan.
IV. Hanyoyin haɓakawa da shawarwarin zaɓi
Ingantaccen sake amfani da haɗe-haɗe: "Tasirin centrifugal mai ƙarfi (na farko) + tasirin iska (na biyu)" ya zama babban tsari, wanda zai iya cimma ƙimar sake yin amfani da shi yayin tabbatar da inganci.
Haɓakawa da tanadin kuzari: Rufe ta atomatik{0}} sarrafa zafin yashi, ƙarar iska, da adadin ciyarwa; sake yin amfani da yashi mai zafi (kamar yin amfani da yashi mai zafi don dumama magunguna).
Ingantattun kariyar muhalli: Tsakanin tattarawa da kula da iskar gas na VOCs da aka samar a cikin yashi, sake yin amfani da su, da tashoshi masu haɗawa (kamar hanyar konewa, hanyar talla).
Shawarwari na zaɓi: Don manyan taron simintin simintin ƙarfe na ƙarfe da ƙarfe mai girma tare da fitarwa na shekara-shekara na tan dubu da yawa ko sama da haka, cikakkiyar hanyar sake amfani da bushewa ta sakandare + tsarin yanayin zafin yashi na samar da yashi zaɓi ne na tattalin arziki da kuma yanayin da ya dace. Yana iya sake sarrafa kashi 95 ko fiye na tsohon yashi, tare da sabon yashi mai cike da yashi kawai yana buƙatar 5{5}}10%, kuma fa'idodin dogon lokaci na da mahimmanci. A taƙaice, tsarin kula da yashi na guduro tsari ne na injiniya mai nagartaccen tsarin injiniya wanda aka zayyana a kusa da "sabuwar sabuntar bushewa" da "daidaitaccen sarrafa zafin yashi", da nufin cimma iyakar amfani da albarkatun yashi da ingantaccen zagayowar rufaffiyar madauki.{8}.