1. Qauv qauv & qauv tsim ntawm cov tov khoom (cov kev txiav txim siab tseem ceeb)
Qhov tsim nyog tsim ntawm cov tov khoom ncaj qha teeb tsa qhov kev txwv sab sauv ntawm nws cov kev sib xyaw. Cov txheej txheem tseem ceeb muaj xws li:
(1) Cov chav ntim khoom sib xyaw thiab geometry
Tau ntim: Tag nrho cov ntim sab hauv ntawm cov chav sib xyaw (qhov twg sib sau ua ke, asphalge, thiab muab tub lim) yog qhov sib xyaw ua ke. Cov chav loj tuaj yeem haum cov khoom siv ntxiv rau ib pob, tab sis cov "qhov chaw uas muaj hnub tuag lawm.
NTSIAB LUS:
RauBatch Mixers(feem ntau hauv nruab nrab - - Cov phiaj xwm me me), lub chav ua si me me), ob peb caug) cuam tshuam li cas cov ntaub ntawv ncig. Optimized geometry (piv txwv li phab ntsa nkhaus, cov ces kaum) kom ua kom cov khoom siv puv thiab zam cov khoom tsim.
RauNruam Mixers(Siv rau hauv loj- Cov phiaj xwm kev tsim kho zoo li kev tsim kho txoj kev loj), lub chamber} Kuv yog qhov sib xyaw ua ke) thiab kev sib xyaw.
(2) Mixing Hlau & Agitator Tsim
Tus Agitator (piv txwv li, paddles, hniav, screws) yog "lub plawv" ntawm cov tov khoom, raws li nws tsav cov khoom txav thiab kev sib xyaw. Nws cov qauv tsim ncaj qha cuam tshuam sib xyaw nrawm thiab muaj peev xwm:
Hom agitator:
Duav Agitators(Ntau yam hauv batch mixers): tus lej, kaum, thiab nrawm ntawm paddles txiav txim cov khoom siv hloov cov khoom. Ntau Paddles (lossis Adjustable cov ces kaum) txhim kho shear quab yuam thiab txo lub sijhawm sib xyaw ib pob.
Ntsia Hlau Agitators(Ntau yam nyob rau hauv cov khoom sib xyaw Me me lub suab=qeeb heev ntawm kev sib xyaw tab sis kev sib xyaw zoo dua; Cov suab loj dua=siab dua los ntawm kev tawm tsam (yog tias kev sib tw yog tswj).
Cov khoom siv ntawm Agitators: Hnav {-} Cov ntaub ntawv resistant (piv txwv li, siab} chromium steel) tiv thaiv kev ua ntej ntxov. Khaub ncaws agitators txo cov tshuaj sib xyaw ua ke (piv txwv li, tsis sib xyaw ua ke) thiab cov neeg ua haujlwm kom qeeb, muaj peev xwm txo qis.
(3) Fais Fab & Tsav Zog
Lub zog tov khoom lub cev muaj zog thiab tsav lub zog (piv txwv li, iav, iav}} {{{{{{{{{{{2} Lub cev agitator tuaj yeem siv cov khoom siv hnyav ntxiv:
Lub cev muaj zog: Lub zog tsis txaus ua rau agitator stalling lossis qeeb kev sib hloov, tshwj xeeb tshaj yog thaum sib xyaw siab {0} {viscosity asphalt lossis ntub agregates. Oversized zog (nyob rau hauv cov qauv tsim kev txwv) pub nrawm kev ntxhov siab thiab luv dua cov sijhawm.
Tsav Kev Ua Haujlwm: Hydraulic drives muaj smoother ceev hloov kho (tseem ceeb rau kev yoog mus rau cov khoom hloov pauv), thaum cov cav ua kom muaj zog ntau dua rau cov khoom siv hnyav. Cov tsav tsis zoo (piv txwv li, roj txia hauv cov hluav taws xob hluav taws xob) txo cov khoom tawm tiag tiag.
2. Kev ua haujlwm tsis zoo (cov kis tau yooj yim)
Txawm hais tias nrog lub zoo -} tsim tov khoom, ua haujlwm ncaj qha cuam tshuam rau seb cov tov khoom puas ncav cuag nws lub peev xwm.
(1) lub sijhawm sib xyaw
Batch Mixers: Txhua pob yuav tsum muaj lub voj voog ruaj khov "sib xyaw" (them nyiaj → tov qhuav → spiralt txhaj → tshem tawm). Cov voj voog luv luv nce rau ib teev (thiab muaj li muaj peev xwm sib xyaw tsis muaj kev sib txawv (xws li tsis muaj sia ntub dej ua rau kev sib cais ua txhaum).
Nruam Mixers: Kev sib xyaw ua ke lub sijhawm yog tswj hwm los ntawm cov ntaub ntawv ntws thiab agitator ceev. Sai Flow Rates Boose Boost tab sis yuav tsum tau sai sai agitator ceev kom muaj kev sib dhos.
(2) Khoom siv ruaj khov
Cov Tov Khoom Lub Peev Xwm yog txwv los ntawm li cas muaj li cas cov ntaub ntawv raw (agranates, asphalt, muab cob qhia:
Kev sib sau ua ke: Yog tias cov khaub thuas txias nkag mus rau hauv lossis lub tshuab xa khoom tsis tuaj yeem pub mis ntawm tus nqi uas yuav tsum tau ua (piv txwv li cov tov khoom siv), cov tov khoom siv nyiaj txiag), tshuaj tov khoom yuav khiav hauv qab, txo qis dua.
Asphalt Mov: Asphalt twj yuav tsum xa cov kub asphalt (ntawm qhov tseeb kub thiab viscosity) hauv sync nrog cov tswv yim sib sau. Tso kua mis tsis ua haujlwm lossis tsis sib xws li asphalt ntws tawm kev sib xyaw thiab cov tso zis qis dua.
(3) Tswj Kub
Asphalt sib xyaw yuav tsum tau tswj kom nruj (feem ntau 150-180℃rau kub- sib tov sib xyaw}) kom ntseeg tau tias kev ua haujlwm thiab ua haujlwm ntev. Kev Tswj Kub Tsis Zoo cuam tshuam rau muaj peev xwm:
Kev sib sau ua kom qhuav: Yog lub tshuab ziab khaub ncaws (rau kev tshem cov dej noo los ntawm cov kab ke) tsis tuaj yeem ua kom muaj kev sib xyaw kom tsis txhob muaj qhov sib xyaw kom tsis txhob muaj qhov sib xyaw kom tsis txhob muaj qhov sib xyaw.
Asphalt Kub: Cov khaub thuas asphalt nce viscosity, ua rau nws nyuaj rau sib tov nrog aggregates. Cov zog no ua rau qeeb qeeb agitator nrawm (kom tsis txhob muaj kev sib xyaw tsis sib xyaw), muaj peev xwm qis dua.
3. Cov Khoom Siv (Cov Khoom Siv Tsis Pom Zoo)
Lub cev nqaij daim tawv thiab tshuaj lom neeg ntawm cov ntaub ntawv raw impose tau txwv ntawm kev muaj peev xwm, vim lawv cuam tshuam li cas cov ntaub ntawv yooj yim sib tov thiab ntws:
(1) Cov yam ntxwv ua tus yam ntxwv
Yauv cov ntsiab lus: Wet aggregates require more time and energy to dry (in the dryer unit). High moisture (e.g., >5%) sijhawm ntev lub voj voog ziab, maj mam muab cov khoom siv sib sau ua ke rau cov khoom siv thiab txo peev xwm.
Kev kawm tiav: Aggregates nrog lub zoo {{0} graded particle loj faib, nruab nrab, thiab zoo sib xyaw ua ke) muab sib xyaw kom yooj yim dua. Cov kev kawm tsis zoo (piv txwv li, kev sib sau ua kom zoo tshaj plaws) ua rau muaj plua plav los yog cov ntaub ntawv sib xyaw, ua rau muaj kev sib xyaw ua ke ib zaug.
Cov duab & Hardness: Angular lossis tej xwm txheej tsis xwm yeem (piv txwv li pob zeb crushed) yuav tsum muaj ntau shear zog los sib xyaw ua ke tshaj li cov sib sau ua ke (piv txwv li dej pob zeb). Kev nyuaj siab heev (piv txwv li, granite) kuj ua rau ceev ceev agitator hnav, uas lub sijhawm dhau lub sijhawm txo cov kev sib xyaw ua ke.
(2) Asphalt Binder Zog
Viscosity: High {- Viscosity Asphalt Asphalt (piv txwv li cov qib siab xws li huab cua zoo li cov huab cua txias) yog qhov nyuaj rau kev sib xyaw ua ke ntev dua. Tsawg-viscosity Asphalt (piv txwv li, pg 64-22 rau huab cua sov) sib xyaw sai dua, tso cai siab dua.
Ntxiv: Hloov asphalt (piv txwv li, polymer -} hloov ayhalt, PMA) feem ntau muaj viscosity ntau dua los yog xav tau kev sib xyaw ntxiv rau cov khoom sib ntxiv. Qhov no nce cov sij hawm sib xyaw thiab tuaj yeem txo qhov peev xwm piv rau unmodified asphalt.
(3) Cov Khoom Ua Si Cov Khoom Siv
Fillers (piv txwv li, limestone hmoov, xis mas) sau qhov khoob ntawm agregates thiab txhim kho -}}}}}} {agon angreion. Txawm li cas los xij:
Tshaj kev muab tub lim (tseem ceeb tshaj plaws tsim kev txwv) nce sib xyaw sib xyaw kom nruj thiab ua kom muaj kev ntxhov siab, qeeb nrawm sib xyaw.
Yoov nyob hauv cov thawv ua kom cov khoom sib xyaw, uas yuav tsum tau sib xyaw ntxiv kom tawg {{0} {txo kev ua hauj lwm zoo.
4. Kev saib xyuas & hnav cov xwm txheej (ntev -} Term infencers)
Lub sijhawm dhau los, kev tswj hwm tsis txaus ua rau muaj kev sib raug zoo ntawm kev ua haujlwm thiab txo nws lub peev xwm ua tau:
Agitator hnav: Hnav paddles / yas txo qis shear zog, uas yuav tsum tau sib xyaw ua ke ntev dua. Thaum muaj mob hnyav, cov khoom ntawm cov khoom uas yuav ua rau muaj kev sib cais, yuam cov neeg ua haujlwm kom muab cov khoom pov tseg (txo qis).
Nws sib xyaw Chamber buildup: Asphalt thiab aggregate plua plav tuaj yeem ua rau Chamber phab ntsa (tshwj xeeb yog qhov kub yog qhov tsawg dhau lawm). Qhov no txo cov chav siv hluav taws xob zoo thiab cuam tshuam cov khoom ntws -}} qis dua batch ib puag ncig.
Txheej Txheem Tsis Txaus: Unscheduled downtime vim yog tawg conveyors, asphalt twj, lossis chav tshuab ziab khaub ncaws ncaj qha rau cov sijhawm ua haujlwm tag nrho thiab tag nrho lub peev xwm. Kev tu ncua (piv txwv li, lubrication, part hloov) txo cov kev cuam tshuam zoo li cas.