Hloov asphalt
Khoom Taw Qhia
Hloov asphalt yog cov tawv dub ntawm chav tsev kub, uas ua tau rau hauv lub plab uas zoo li plhaub ntawm qhov kub thiab txias, nthuav qhia lub khob iav; Tsis muaj ib qho tshwj xeeb melting taw tes, nws melts nyob rau qee yam, thiab tsis muaj cov nyhuv siv thermal thaum lub sijhawm ua tiav. Qhov muaj pes tsawg leeg yog qhov nyuaj heev, feem ntau yog muaj cov ntxhiab tsw hydrocarbons nrog peb lossis ntau dua li cov pa roj oxygen, thiab leej faj me me ntawm cov khoom siv molecular hnyav.
Hloov asphalt yog hom asphalt uas tau ua tiav ntawm cov tawv nqaij tawg los ntawm qhov nruab nrab kub asphalt. Nws cov yam ntxwv yog qhov muag muag siab, muaj cov ntsiab lus ntawm cov txiaj ntsig ntawm cov txiaj ntsig ntawm 25%, thiab quinoline insoluble cov ntsiab lus tsawg dua 8%. Thaum ua cov pa roj carbon ntau siv cov ntaub ntawv ntim ua kom huv si ua cov khoom siv raw, sib txawv yuav tsum muab tso rau ntawm cov khoom muag muag. Piv txwv li, electrodes yuav tsum muaj 105-115 ℃, anodes yuav tsum tau 95-105 ℃ Thaum lub sij hawm sib xyaw thiab txhuam cov txheej txheem, asphalt emits tsawg dua cov pa luam yeeb, txo cov pa phem. Lub siab softening kub thiab kneading kub tshwm sim hauv siab thermal stability, uas txhim kho cov khoom siv carbon. Coural tarphalt tuaj yeem muab faib ntxiv rau hauv dej asphalt thiab cov khoom asphalt. Kua dej asphalt tsis muaj dej thiab tuaj yeem siv ncaj qha los ntawm cov tuam ntxhab, tab sis yuav tsum muaj cov kev thauj mus los tshwj xeeb. Cov neeg asphalt tau yaj kom tshem tawm ya raws ua ntej nws tuaj yeem siv los ua cov binder lossis impregnating rau cov pa roj carbon.
Hloov asphalt yog siv hauv kev lag luam anoldsyrepysis, tsim khoom siv high electrode rods, thiab kuj tseem siv tau raws li cov nplaum elegesives. Kev kub siab siv kub npau suav muaj cov yam ntxwv ntawm Tsau Carbon, Insoluble hauv Toluene, cov ntsiab lus zoo thiab cov tshauv qis. Dav siv hauv cov nroj tsuag carbon, ua ntej rau cov khoom siv hluav taws xob, tshuab hluav taws xob, thiab cov khoom siv hluav taws xob, thiab cov khoom siv hluav taws xob, thiab cov khoom siv refractory. Raws li kev ntxiv rau cov roj carbon, nws tuaj yeem ua lub luag haujlwm hauv kev sib koom tes thiab cov pa roj carbonization, txhim kho cov khoom lag luam kub thiab corrosion tsis kam.
Modified coal tar pitch plays a crucial role in the electrolysis of aluminum in aluminum plants. Tshwj xeeb, nws lub luag haujlwm yog feem ntau xav txog hauv cov hauv qab no:
- Raws li phau ntawv sau tseg: hloov kho lub ntsej muag pob zeb yog lub ntsiab lus tseem ceeb siv nyob rau hauv cov khoom siv ua ntej-ci rau electrolytic aluminium. Pre-ci anode blocks yog cov carbon blocks ua los ntawm agranates xws li roj av coke thiab thee sar s taub qab zib, siv ua anakores hauv cov roj av ntawm cov roj av. Coal Sar Pitch tuaj yeem ua ke yuav ua ke ua ke, tsim cov khoom siv anode nrog qee yam muaj zog thiab kev txhim kho cov txiaj ntsig electrolytic cell thiab Aluminium ntau lawm.
- Tiv thaiv kev tsim ntawm txhuas oxide: thaum cov txheej txheem ntawm cov electrolytic txhuas, uas tsis yog cuam tshuam rau cov oxidation ntawm txhuas tab sis kuj ua rau lub zog pov tseg. Qee cov khoom sib xyaw nyob rau hauv hloov cov suab pob zeb tuaj yeem inhibit tsim ntawm txhuas oxide, yog li txhim kho qhov zoo thiab tawm los ntawm txhuas.
Txhim kho kev coj ua tau zoo: Hloov kho cov suab pob zeb hluav taws xob tuaj yeem ua rau muaj kev txhim kho ntau dua ntawm cov khoom siv electrolytic txhuas.
- Raws li kev sib khi thiab cov ntaub ntawv adsorption: nyob rau sab saum toj thiab hauv qab ntawm cov txheej txheem hluav taws xob, hloov kho cov haujlwm electrolyte los ntawm kev ua haujlwm ruaj khov, kom ua haujlwm ruaj khov ntawm cov khoom siv hluav taws xob electrolytic. Nyob rau tib lub sijhawm, nws kuj tseem tuaj yeem tshem tawm cov pa roj thiab impurities nyob rau hauv electrolytic cell, txhim kho qhov zoo ntawm cov electrolyte thiab purity ntawm txhuas ntau lawm.
- Hauv cov ntsiab lus, hloov kho cov kab ke faib ua si ntau yam ntawm cov nroj tsuag ntawm alumina, tiv thaiv kev tsim ntawm alumina, txhim kho kev coj ua, kev sib khi, thiab adsorption. Nws yog qhov tseem ceeb tshaj plaws rau kev txhim kho kev ua haujlwm ntawm txhuas cov kev txhim kho, txo cov nqi, thiab ua kom zoo ntawm txhuas.
Tshuab Ntau Lawm
Cov thermal polymerization txoj kev rau asphalt hloov feem ntau yog pab txhawb kev ua kom tsis tu ncua, thiab cov tshuaj tiv thaiv kab mob tuaj yeem ua haujlwm ntawm atmospheric siab lossis ntxiv tawm. Thaum lub sijhawm ua haujlwm nyob hauv siab, kub kub ntws tawm rau chav kev tawm tsam thiab yog rhuab nyob rau hauv lub hwj huam evaporator ntawm cov hwj kais vid diverle ntawm 360-420 ℃ los npaj hloov asphalt. Kev hloov kho Asphalt ntws mus rau hauv qhov nruab nrab ntawm kev hloov asphalt los ntawm nws tus kheej thiab yog tom qab ntawd xa mus rau lub taub ntswg asphalt kom txias. Tom qab ntuj txias rau 150-180 ℃, nws tau muab tso rau hauv asphalt txias moulding tshuab los ua cov tub cav moulding los ua cov tub kawm kev ua haujlwm moulding. Cov roj thiab cov roj tawm ntawm cov reactor fash roj thiab unconded tso pa tawm hauv cov condenser. Thaum siv txoj haujlwm kev ua haujlwm zoo, cov kub asphalt dhau los ntawm lub tank nruab nrab ntawm qhov nruab nrab kub asphalt thiab tau nqus mus rau hauv cov tshuaj tiv thaiv kab mob. Lub siab sab hauv cov hwj txwv yog khaws cia ntawm 0.5 ~ 1.2mpa, thiab tus so yog tib yam li cov kettle-hom atmospheric siab. Piv nrog atmospheric lub siab thermal polymerization, qhov zoo ntawm cov ntsiab lus thermal, thiab muaj txiaj ntsig zoo nyob rau hauv cov coking tus nqi ntawm kev hloov asphalt. Thaum muag muag muag tau nce ntxiv, lub tshuab nqus tsev tuaj yeem pib kho cov flash distillation ntauwd, ntxiv evaporating cov roj cov ntsiab lus hauv kev hloov asphalt; Thaum nws yog qhov tsim nyog yuav tsum txo qhov muag muag kom sov, nyem roj tuaj yeem muab txau mus rau hauv lub flash pej thuam. Cov txiaj ntsig ntawm kev hloov asphalt siv nruab nrab kub li luam tawm yog 90% ~ 96%, thiab cov tawm los ntawm kev hloov kho cov av nplaum yog 58% ~ 60%.
Lub hom phiaj
Kev lag luam asphalt yog siv rau hauv kev lag luam anoldsygysis tsim los tsim cov pas nrig ua ntej, thiab ua kom cov pa roj carbon monomit, thiab ua kom cov pa roj carbon monomit, thiab ua kom cov pa roj carbon monoxide
TUJ HNAB NTIM
Woven hnab, xoob haum.
