Xakamaynta Xoojinta Ethylene ee Samaynta Cinjirka
Kaarboorka macmalka ah waa elastomer ay sameeyeen dad oo ay soo saaraan batroolka. Badanaa waxaa loo isticmaalaa codsiyada sida qaybaha baabuurta -- taayirada, albaabada iyo daaqadaha. Soo saarista monomer-ka cayriin waxay ku lug leedahay sifeynta jajabyadan saliidda - iyada oo loo marayo hababka sida dildilaaca naphtha iyo distillation - si loo nadiifiyo monomer-yada bartilmaameedka ah, maadaama wasakhdu ay carqaladeyn doonto falcelinta polymerization ee xigta. Monomers-ka la safeeyey ee ka dhasha waxay caadi ahaan leeyihiin nadiifnimo ah 99.5% ama ka badan, iyagoo aasaaska u dhigaya sameynta caagga.
Tallaabada ugu muhiimsan ee wax soo saarka waa polymerization: monomers-ka la safeeyey waxaa lagu qasaa kuwa bilaaba waxaana lagu kala firdhiyaa biyaha ama waxaa lagu milmaa dareere dabiici ah. Habkani wuxuu u beddelaa molecules-ka monomer-ka yar silsilado polymer ah oo dhaadheer, taasoo soo saarta caag cayriin ah oo leh kaarboon hydrocarbon ah oo ah 80-90%. Tallaabo dabagal oo muhiim ah waa vulcanization, halkaas oo sulfur ama peroxides lagu daro oo lagu kululeeyo si loo sameeyo isku xidhka silsiladaha polymer-ka - caagga aan vulcanized ahayn aad buu u jilicsan yahay oo u dhegdheg badan yahay si uu waxtar u yeesho. Kaarboonka vulcanized marka hore wuxuu leeyahay nadiifnimo polymer ah oo ah 95-98%, laakiin codsiyada waxqabadka sare leh, waxaa loo baahan yahay nadiifin dheeraad ah.
Dhibaatada Cabbiraadda Xoogga saarista ee Xoogga Ethylene
Isku-darka cinjirka, gaar ahaan monomer-ka ethylene-propylene-diene (EPDM) ama cinjirka ethylene-propylene (EPR/EPM), cabbiraadda saxda ah ee fiirsashada ethylene waa mid muhiim u ah xakamaynta kinetics-ka polymerization, hubinta sifooyinka polymer-ka ee joogtada ah iyo yaraynta qashinka.
Dulmar Guud oo ku saabsan Habka Isku-darka Rabadhka
Sameynta cinjirka ee EPDM/EPR waxay caadi ahaan ku lug leedahay:
Bixinta Kheyraadka Xoolaha: Ethylene iyo propylene (iyo diene ee EPDM) waxaa loo quudiyaa sidii gaasas oo kale fal-galiye, badanaa waxaa lagu milmaa dareere ama lagu hayaa marxalado gaas/dareere ah.
Fal-sameeyaha Polymerization: CSTR ama fal-galiye wareeg ah halkaas oo monomers-ku ay la falgalaan kataliyayaal heerkul ah 30-90°C iyo 10-30 bar, iyagoo samaynaya silsilado polymer ah.
Soo kabashada dareeraha/MonomerMonomers-ka aan falcelinta lahayn waa la furfuraa, dib loo warshadeeyaa, ama waa la nadiifiyaa, badanaa iyada oo loo marayo devolatilization ama durbaanno flash ah.
Dhammaystirka: Polymer-ka waa la kala saaraa, la dhaqaa, oo la soo saaraa, iyadoo la hubinayo tayada cufnaanta iyo isku-dhafka Mooney.
Ethylene waxay u adeegtaa monomer muhiim u ah isku-darka caagga, oo ah walax ceeriin ah oo muhiim u ah warshadaha batroolka kiimikada. Isu-ururinta monomer-kan gudaha weelka falcelinta ayaa si toos ah u go'aamisa kinetics-ka polymerization-ka iyo, sidaas darteed, sifooyinka jireed iyo kiimikada ee polymer-ka ugu dambeeya, sida miisaanka molecular-ka iyo heerkulka dhalaalka. Marka fiirsashada ethylene aan si sax ah loo xakamayn, polymer-ka ka dhasha wuxuu muujin karaa kala-soocid aan la xakamayn karin, taasoo horseedaysa qaybinta ballaaran ee miisaanka molecular-ka iyo tayada badeecada kama dambaysta ah ee aan iswaafaqsanayn. Tusaale ahaan, xiriir toosan ayaa ka dhexeeya cadaadiska ethylene ee sii kordhaya iyo waxa ku jira ethylene ee ku jira copolymer-yada la soo saaray, taas oo iyaduna saameysa heerkulkooda dhalaalka.
Kala duwanaanshahan tayada badeecaddu wuxuu leeyahay saameyn dhaqaale oo toos ah oo la taaban karo. Si loo hubiyo in dufcad kasta oo la soo saaray ay buuxiso shuruudaha ugu yar ee tayada, hawl-wadeennadu waxay inta badan ku dhaqmaan hab loo yaqaan "bixinta tayada". Tani waxay ku lug leedahay si ula kac ah u soo saarista badeecad leh astaamo tayo leh oo ka sarreeya tilmaamaha loo baahan yahay, taasoo saameyn ku yeelanaysa in si xad dhaaf ah loo farsameeyo habka si loo magdhabo cabbirka iyo kala duwanaanshaha xakamaynta. Dhaqankan, iyadoo la hubinayo aqbalaadda badeecadda, wuxuu si toos ah u horseedaa isticmaalka alaabta ceeriin oo kordha, isticmaalka tamarta oo sarreeya, iyo waqtiyada wareegga oo la dheereeyey, kuwaas oo dhammaantood u tarjuma kharashyo hawlgal oo muhiim ah iyo faa'iido yar. Xudunta dhibaatadan maaha cillad ku jirta habka kiimikada laftiisa, laakiin waa cillad ku jirta cabbirka waqtiga-dhabta ah iyo wareegga xakamaynta ee xukuma, taasoo horseedaysa qaab hawlgal oo falgal ah halkii laga ahaan lahaa mid firfircoon.
La hadal khabiirkayaga si aad u qiimeyso shuruudahaaga hawlgalka.
Xalka Cabbiraadda Xooggaynta ee Mitirka Lonnmeter-ka Joogtada ah
Falanqaynta ku salaysan shaybaadhka ee caadiga ah ee aan tooska ahayn kuma habboona baahiyaha firfircoon ee joogtada ah ee khadka wax soo saarka casriga ah. Waxay badanaa keenaan dib u dhac falanqayn iyo cabbiraad shaqo oo soo noqnoqda. Si kale haddii loo dhigo, xogta ay hawl-wadeennadu helaan waa sawir muujinaya habka daqiiqado ama xitaa saacado. Yaraanta macluumaadka waxay sababtaa leexasho tayo ka dib marka ay hore u dhaceen iyo suurtogalnimada ka dib marka dufcad dhan la burburiyo, taasoo keenta qashin qaali ah iyo dib-u-shaqayn.
Lonnmeter wuxuu sameeyay qaab-dhismeedfiirsashada dareemayaasha ethylenesi loo xaqiijiyo cabbirka saxda ah ee fiirsashada waqtiga dhabta ah ee geedi-socod kiimiko oo joogto ah. Si fiican ayay u shaqeysaa xitaa jawi isbeddelaya; Mitirka fiirsashada ethylene ee khadka tooska ah waa qalab heer warshadeed ah oo loogu talagalay inuu wax ka qabto shuruudaha cabbirka saxda ah ee hababka kiimikada. Waxay isticmaashaa teknoolojiyada dareenka ee horumarsan -- isha calaamadaha dhawaaqa si ay u kiciso fargeeto bir ah oo hagaajinaysa, taasoo keenta in fargeeto ay gariirto inta jeer ee resonant-ka dabiiciga ah. Waxaa xusid mudan, soo noqnoqoshada resonant-kani waxay muujinaysaa xiriir toos ah oo la leh cufnaanta dareeraha ee fargeeto hagaajintu la xiriirto. Dabadeed, cufnaanta dareeraha waxaa lagu go'aamin karaa falanqaynta soo noqnoqoshada - iyadoo la fulinayo magdhowga heerkulka si looga hortago hoos u dhaca heerkulka ee nidaamka dhexdiisa, iyadoo la hubinayo saxnaanta cabbirka.
Qaab-dhismeedka Fargeeto-hagaajinta
Meelaynta Rakibaadda ee Habka Isku-darka Rabadhka
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Khadka Quudinta MonomerDareemaha dhig tuubada quudinta ethylene-ka ka dib kombaresarada si loo hubiyo daahirnimada oo loo hagaajiyo qiyaasta.
Albaabka Reaktor-ka: Ku rakib meesha isku darka dareeraha monomer-ka iyadoo la adeegsanayo hexane/propylene si loo xakameeyo ethylene-ka milmay.
Gudaha Reaktor-ka: Ku meelaynta gudaha CSTR meel u dhow kicinta si loo xakameeyo polymerization-ka waqtiga-dhabta ah.
Khadka Dib-u-warshadaynta: Ka hel meesha laga soo galo durbaanka flash-ka si aad u wanaajiso soo kabashada ethylene-ka aan falcelin lahayn.
Khadka Dalool-mareenka: Ku rakib khadka nadiifinta/daloolka hawada si aad ula socoto qiiqa iyo inaad hubiso badbaadada.
Wax badan ka baro alaabtayada
Faa'iidooyinka ay keento Mitirka Xoogga Ethylene ee Inline
●La socodka waqtiga-dhabta ah wuxuu hubiyaa xakamaynta saxda ah ee ethylene, hagaajinta tayada polymer-ka iyo yaraynta diidmada dufcadda.
●Waxay baabi'isaa qiyaasta xad-dhaafka ah, waxayna badbaadisaa ethylene.
●Waxay wanaajisaa soo kabashada monomer-ka ee khadadka dib-u-warshadaynta.
●Waxay ogaataa cillado aan caadi ahayn si loo ilaaliyo saadaasha.
●Dayactir hooseeya.
