Cov Hom Asphalt Mixing Plant Twg Zoo Tshaj Plaws Rau Koj Qhov Project Tom Ntej?
Cov kws ua choj thiab cov thawj coj kev yuav khoom tsis tshua sawv los npau suav txog lub Hoobkas sib tov asphalt; tab sis thaum cov qauv paving poob rau ntawm lawv lub rooj, tib lo lus nug tshwm sim: "Cov hom Hoobkas sib tov asphalt twg yuav ua rau peb nyob ntawm cov peev nyiaj, raws sijhawm, thiab tsis muaj teeb meem nrog tus kws ua haujlwm nyob?" Cov lus teb tsis yog ib qho loj-haum-txhua tus. Txij li mega-highways mus rau cov chaw faib me me, txhua txoj haujlwm xav tau cov zaub mov txawv me ntsis, tus nqi tsim khoom, thiab qhov chaw ib puag ncig sib txawv. Hauv qab no yog kev sim ua teb ntawm cov hom Hoobkas sib tov asphalt tseem ceeb, cov nqi zais tsis muaj leej twg hais hauv cov ntawv qhia, thiab cov ntsiab lus txiav txim siab uas cuam tshuam rau Google tshawb nrhiav xws li "cov hom Hoobkas sib tov asphalt" txhua hnub.
Vim Li Cas Kev Lag Luam Thiaj Rov Tsim Cov Tshuab Zoo Li Qub
Xyoo 1970, ib lub chaw ua haujlwm sib xyaw ua ke tuaj yeem tsim tau 80 tph thiab tseem zoo nkauj heev. Tom qab tsib caug xyoo, cov chaw ua haujlwm hauv nroog xav tau 200 tph hauv qhov chaw kaw uas tsis muaj pa phem, thaum cov nroog nyob deb nroog tseem siv 40 tph lub tshuab sib tov nruas uas siv roj diesel. Cov lus qhia ntawm tsoomfwv, cov khoom siv polymer-modified binders, cov khoom siv sib tov sov, thiab feem pua ntawm kev siv asphalt pavement (RAP) rov ua dua tshiab pheej hloov pauv, yog li cov chaw tsim khoom hloov kho cov dav hlau nruas, cov ntaub baghouse, thiab cov qauv tsim hluav taws xob yuav luag txhua lub voj voog khoom. Hauv ntej, kev ua lag luam tsis thov cov xim tshiab; nws thov cov peev xwm tshiab hauv cov hom cog sib tov asphalt uas paub zoo.
Cov Nroj Tsuag Sib Xyaws Ua Ke: Riam Phom Swiss
Cov chaw ua haujlwm batch tseem yog tus tswv ntawm kev ua lag luam siab. Txhua 45–60 vib nas this "batch" raug hnyav, sib xyaw, thiab tso tawm sib cais, muab rau tus neeg ua haujlwm phais tswj hwm cov khoom sib xyaw, cov khoom sib txuas, thiab RAP piv. Lub xeev DOTs nyiam qhov kev ywj pheej no vim tias lawv tuaj yeem rhuav tshem ntau lub tsheb thauj khoom ntawm cov khoom sib xyaw yog tias qhov kev hloov pauv poob qis. Qhov tsis zoo? Kev nkag siab ntau dua ntawm cov dej noo, ntau dua me ntsis hmoov av, thiab - cia peb ua siab ncaj - ntau qhov chaw txav mus los rau tus saib xyuas. Yog tias koj phau ntawv qhia teev cov polymer-modified PG 76-22, steel-slag aggregate, lossis 40% RAP, lub chaw ua haujlwm batch feem ntau yog hom chaw sib xyaw asphalt zoo tshaj plaws. Tsuas yog nco ntsoov, kev nyab xeeb los ntawm tus nqi: cov nroj tsuag saum toj no 160 tph feem ntau xav tau 2.5 daim av thiab 63-ton silo teeb tsa, yog li xyuas seb puas muaj av ua ntej koj poob rau hauv kev hlub nrog phau ntawv qhia ci ntsa iab.
Cov Nroj Tsuag Sib Xyaws Sib Xyaws Sib Xyaws: Cov Neeg Ntseeg Qub Nrog Ob Peb Yam Tricks
Cov nruas sib luag khiav cov khoom sib xyaw thiab cov pa tawm hauv tib qho kev taw qhia, yog li cov dej noo tawm sai sai thiab kev siv roj tseem nyob qis - kwv yees li 130 kg ntawm cov roj hnyav ib tuj ntawm kev sib tov. Cov neeg cog lus nrhiav kom muaj ntau dua li qhov nyuaj tseem nyiam hom cog asphalt no rau cov txheej txheem hauv paus lossis cov txheej khi. Achilles heel? Pa luam yeeb opacity nce siab thaum koj thawb dhau 25% RAP, thiab qee lub nroog tam sim no cim opacity siab dua 20% hauv lawv cov ntawv tso cai ib puag ncig. Yog tias koj ua haujlwm hauv thaj chaw tsis tau txais, npaj ntxiv lub kaw lus txhaj tshuaj thib ob lossis hloov mus rau counter-flow.
Cov Nroj Tsuag Sib Xyaws Uas Sib Npaug Nrog Cov Nroj Tsuag: Tus Ua Tau Zoo Nyob Ntshe
Kev tsim qauv counter-flow tig qhov kev taw qhia ntawm cov khoom sib xyaw tawm tsam lub nplaim taws ntawm lub cub tawg, ua rau thaj chaw kub tshaj plaws tom qab qhov chaw txhaj tshuaj bitumen. Qhov tshwm sim: tsis muaj pa luam yeeb xiav, tsawg dua oxidation, thiab RAP feem pua ntawm 40% yam tsis muaj baghouse blinding. Qhov nplua roj yog me me - kwv yees li 5% ntau dua piv rau kev ntws sib luag - tab sis chav tsev ib puag ncig uas koj tau txais feem ntau them rau tus nqi hlawv ntxiv. Thaum cov thawj coj hauv nroog thov kom "cov pa phem pom qis tshaj plaws," hom cog asphalt no yeej qhov kev twv txawm tias nws raug nqi ntau dua 8% ntawm capex.
Cov Nroj Tsuag Sib Xyaws Tsis Tu Ncua: Tus Menyuam Tshiab ntawm Lub Thaiv?
Cov nroj tsuag sib tov tas mus li ntsuas cov khoom noj txias, txhaj tshuaj bitumen, thiab tso cov khoom sib tov tsis tu ncua los ntawm lub tshuab sib tov pugmill lossis twin-shaft. Lawv tsis meej npaum li cov nroj tsuag sib xyaw, tab sis lawv ntaus 300 tph ntawm qhov chaw me dua li lub tsev hais plaub ntaus pob tesniv. Xav txog lawv ua ib qho kev sib xyaw ntawm lub nruas ib txwm muaj thiab lub tshuab ua kom av ruaj khov. Cov kua ntses zais cia yog kev them nyiaj rau cov dej noo tiag tiag: NIR sensors tweak cov dej ntws bitumen txhua 15 vib nas this. Txawm li cas los xij, cov nroj tsuag sib tov asphalt no muaj teeb meem nrog RAP hloov pauv ntau vim tias lub sijhawm nyob luv luv. Yog tias koj qhov chaw sib sau ua ke yog sib xws thiab koj xav tau >250 tph ntawm txoj cai nruj, saib qhov kev xaiv no kom zoo.
Cov Nroj Tsuag Me Me & Txawb Tau: Lub Nkoj Cawm Neeg 30-tph
Cov nroog nyob deb uas kho cov qhov av ntawm 3 ° C tsis xav tau lub tsheb loj 200 tph. Lawv xav tau lub thawv loj 20-ft uas tuaj yeem caij tau ntawm lub tsheb laij teb qis thiab ua haujlwm hauv 48 teev. Nkag mus rau cov hom mini asphalt mixing plant: 10–40 tph, tag nrho 180 kW txuas nrog, thiab lub thawv rov qab ua pa uas ua rau pa luam yeeb xiav tsis pom. Qhov zoo ntawm cov zis? Zoo kawg nkaus yog tias koj ua ntej tshuaj xyuas RAP los ntawm 12 hli grizzly. Qhov kev txwv tiag tiag yog lub peev xwm silo - feem ntau 15 tons - yog li kev thauj khoom thauj khoom ua rau koj mob taub hau txhua hnub.
Cov Khoom Siv Ib puag ncig uas Hloov Kev suav lej
Txawm koj xaiv hom tshuab sib tov asphalt twg los xij, tam sim no muaj ob yam tseem ceeb uas siv tau rau kev xam ROI: emissions thiab suab nrov. Lub tshuab venturi-rod wet scrubber tuaj yeem txo PM mus txog 20 mg/m³, tab sis nws ntxiv 6 kWh/ton. Lub tshuab pub RAP tuaj yeem txuag tau $7 ib ton ntawm cov ntawv nplaum qub, tab sis nws yuav ua rau lub stack opacity nce. Ua ntej koj kos npe rau daim ntawv yuav khoom, ua qauv rau lub tshuab nrog EPA's AERMOD rau koj qhov siab, qhov siab ntawm ib puag ncig, thiab qhov ceev cua nruab nrab; daim ntawv spreadsheet xav tsis thoob uas koj tau txais thaum 2 teev sawv ntxov tuaj yeem hloov pauv cov nyiaj tau los txhua xyoo los ntawm rau tus lej.
Yuav Ua Li Cas Sib Piv Hom Nroj Tsuag Rau Qhov Ntsuas Project—Kev Tshawb Nrhiav Sai
- Kev txiav cov khoom siv hauv nroog thiab cov nqi hluav taws xob: 10–40 tph mini mobile plant, ua ib pawg lossis txuas ntxiv mus.
- Kev npog txoj kev loj nrog 25% RAP: 120–160 tph nruas ntws rov qab.
- Ua haujlwm hmo ntuj hauv nroog uas tsis muaj pa phem pom: 160–240 tph batch plant nrog cov lim fiber thiab cov kiv cua VFD.
- Kev kho dua tshiab ntawm txoj kev khiav ntawm tshav dav hlau: Lub Hoobkas ua khoom 240 tph nrog cov silos cia khoom kub thiab 3-tuj surge hopper kom cov tsheb thauj khoom khiav tau zoo.
Cov Qauv Ntsuas Tus Nqi Tsis Muaj Leej Twg Luam Tawm Hauv Cov Lus Cim
Xav tias yuav muaj $1.1–1.4 lab rau lub tshuab ua nruas 120 tph uas tig rov qab los ntawm FOB Shanghai, tab sis ntxiv 22% rau cov thav duab tiv thaiv av qeeg yog tias koj qhov chaw nyob rau thaj tsam av qeeg III. Lub tshuab ua haujlwm 160 tph nrog 50-ton kub bins thiab 5-deck screen teev nyob rau ntawm $1.7 lab, tsis tau tsuas yog lub hauv paus hlau xwb tuaj yeem noj lwm $180 k thaum koj suav nrog cov nqi rebar hauv zos. Kev xa khoom? Lub thawv HQ 40-ft tuaj yeem nqos lub tshuab mini 20 tph, tab sis koj tseem xav tau peb lub khib tiaj tiaj rau lub tank bitumen 8-ton. Hauv ntej, thaum koj Google "asphalt mixing plant types," suav nrog cov khoom ntxiv lossis koj cov kab contingency yuav quaj tom qab.
Cov Lus Qhia Tseem Ceeb rau Cov Neeg Kwv Yees Uas Ua Haujlwm Ntau
Yog koj tsis nco qab dab tsi ntxiv lawm, cim peb qhov tseeb no:
- Kev sib sau ua ke sib npaug rau qhov yooj ywm; lub nruas sib npaug rau qhov tonnage; kev txuas ntxiv mus sib npaug rau qhov ceev ntawm qhov chaw me me.
- Feem pua ntawm RAP siab tsis yog daim ntawv xav tau lawm - lawv yog ib qho kev cai tso cai hauv ntau lub xeev.
- Hom cog asphalt pheej yig tshaj plaws ntawm daim ntawv spec tsis tshua muaj qhov pheej yig tshaj plaws thaum suav cov dej noo, roj, thiab cov qhab nia pa phem.
Xaiv cov nroj tsuag uas phim koj qhov spec, tsis yog koj lub siab, thiab lub caij paving yuav xaus ua ntej thawj daim snowflake ya.
