Xav kub ayphalt
Khoom Taw Qhia
Kev kub kub yog qhov sib xyaw ua kom sib xyaw ntawm cov xim av tsaus nti, muab rho tawm los ntawm cov khoom sib xyaw ntawm cov khoom siv kub siab. Cov ntaub ntawv no muaj cov khoom siv lub cev thiab tshuaj lom neeg tshwj xeeb, ua rau nws pom qhov ua tau zoo zoo hauv ntau daim ntawv thov ib puag ncig thiab ib puag ncig.
Kev ntsuas lub cev kev ua tau zoo ntawm kev siv hluav taws xob siab nrog ntsuas qhov ntsuas hluav taws xob ntawm kev ntsuas qhov kub, uas tuaj yeem ntsuas los ntawm cov vis parcometer. Qhov siab dua qhov ntom ntawm qhov kub-kub ua kom sov pob ntseg, qhov ntau dua nws cov huab hwm coj, thiab hloov pauv. Flash lub ntsiab lus yog hais txog qhov ntsuas kub qis tshaj plaws uas high-kub thee thee tar asphalt yog ignited.
Kev kub kub ua kom sov pob zeb muaj cov nplaum zoo, kev muaj zog zoo, thiab elasticity, thiab tuaj yeem tiv taus siab kub, kev kub siab, thiab oxidation. Nws cov nplaum adhesion zoo ua rau nws dav hauv teb xws li tiv thaiv corrosion, qaug dej, thiab kev tsim kho.
Kev kub kub ua kom sov pob zeb muaj qhov ruaj khov zoo thiab tuaj yeem ua kom muaj kev ua tau zoo ntev ntawm kev kub siab. Nws tuaj yeem siv rau hauv liaj teb xws li kev tsim kho kev tsim kho, tiv thaiv corrosion thiab waterproofing, thiab kev tsim kho kev tsim kho. Hauv kev tsim kho, muaj kub-kub thee kua asphalt yog siv los ua kev ntxiv hauv txoj kev asphalt qhob thiab dej tsis kam ntawm txoj kev nto. Hauv kev tiv thaiv kev xeb thiab dej tsis huv thiab dej tsis huv, nws tuaj yeem siv los tsim cov txheej txheem tiv thaiv corrosion, ua tiav cov txiaj ntsig thiab cov khoom siv dej tsis zoo. Siab kub thee li tar asphalt yog siv los ua phau ntawv thiab sealant hauv kev tsim kho thiab lub suab rwb thaiv tsev ua haujlwm ntawm cov tuam tsev.
Kev kub siab rau cov pob zeb muaj cov khoom siv lub cev thiab tshuaj lom neeg tuaj yeem txhim kho ntxiv los ntawm kev hloov kho kom tau raws li qhov kev xav tau ntawm daim ntawv thov sib txawv. Cov kev tshawb fawb thiab kev thov ntawm cov kub-kub ua kom sov li niaj hnub ua kom tawg, tso lub hauv paus rau kev txhim kho kom ruaj khov ntawm cov pob zeb ua haujlwm.
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.
