Cov dej ntws los ntawm thee
I. Cov Khoom Siv Lub Cev thiab Kev Ua Haujlwm
Cov dej ntws los ntawm thee yog cov dej ntws uas ua los ntawm thee, dej thiab me ntsis cov tshuaj ntxiv. Raws li lub hom phiaj, cov dej ntws los ntawm thee yog muab faib ua cov roj ntws los ntawm thee thiab dej ntws uas muaj zog heev thiab cov dej ntws los ntawm thee rau Texaco lub cub tawg uas siv roj ua roj. Cov dej ntws los ntawm thee tuaj yeem raug twj, ua kom muaj zog, khaws cia thiab hlawv thiab hlawv kom ruaj khov. Kwv yees li 2 tons ntawm cov dej ntws los ntawm thee tuaj yeem hloov 1 tons ntawm roj roj.
Cov dej thee thiab dej rau kev hlawv ua tau zoo dua li kev siv hluav taws xob zoo, txuag hluav taws xob thiab cov txiaj ntsig ib puag ncig, yog ib feem tseem ceeb ntawm kev siv tshuab thee huv. Cov dej thee thiab dej tuaj yeem thauj mus deb heev los ntawm kev thauj mus los hauv cov kav dej nrog kev nqis peev tsawg thiab cov nqi khiav lag luam tsawg. Nws tuaj yeem hlawv ncaj qha yam tsis muaj kev qhuav tom qab tuaj txog ntawm lub davhlau ya nyob twg, thiab cov txheej txheem khaws cia thiab thauj mus los tau kaw tag nrho.
Dej yuav ua rau poob cua sov thiab tsis tuaj yeem tsim cua sov hauv cov txheej txheem hlawv. Yog li ntawd, qhov concentration ntawm thee yuav tsum ncav cuag qib siab - 65 ~ 70% feem ntau. Cov tshuaj ntxiv yog li 1%. Qhov poob cua sov los ntawm dej suav txog li 4% ntawm cov nqi calorific ntawm cov thee-dej slurry. Dej yog cov khoom siv raw tsis zam hauv kev ua roj. Los ntawm qhov kev xav no, qhov concentration ntawm thee tuaj yeem txo qis mus rau 62% ~ 65%, uas yuav ua rau muaj peev xwm ua rau cov pa oxygen hlawv ntau ntxiv.
Yuav kom yooj yim rau kev sib xyaw ua ke thiab kev ua kom muaj roj, cov thee-dej slurry muaj qee qhov yuav tsum tau ua kom zoo ntawm cov thee. Qhov txwv siab tshaj plaws ntawm qhov loj me ntawm cov thee-dej slurry rau roj (qhov loj me ntawm cov khoom me me nrog tus nqi dhau tsis tsawg dua 98%) yog 300μm, thiab cov ntsiab lus tsawg dua 74μm (200 mesh) tsis tsawg dua 75%. Qhov zoo ntawm cov thee-dej slurry rau roj yog me ntsis ntxhib dua li cov thee-dej slurry rau roj. Qhov txwv siab tshaj plaws ntawm qhov loj me ntawm cov khoom me me raug tso cai kom ncav cuag 1410μm (14 mesh), thiab cov ntsiab lus tsawg dua 74μm (200 mesh) yog 32% txog 60%. Yuav kom ua rau cov thee-dej slurry yooj yim rau kev twj thiab atomize, cov thee-dej slurry kuj muaj qhov yuav tsum tau ua kom du.
Thaum sov li chav tsev thiab tus nqi shear ntawm 100s, qhov viscosity pom tseeb feem ntau yuav tsum tsis pub tshaj 1000-1500mPas. Cov thee-dej slurry siv rau hauv kev thauj mus los ntev yuav tsum muaj viscosity pom tseeb tsis pub tshaj 800mPa·s nyob rau hauv qhov kub qis (qhov kub qis tshaj plaws ntawm lub xyoo rau cov kav dej faus hauv av) thiab tus nqi shear ntawm 10s-1. Tsis tas li ntawd, nws kuj tseem yuav tsum tau tias cov thee-dej slurry muaj viscosity qis dua thaum nws nyob hauv lub xeev ntws, uas yooj yim rau kev siv; thaum nws tsis ntws thiab nyob hauv lub xeev tsis txav, nws tuaj yeem qhia viscosity siab rau kev khaws cia yooj yim.
Qhov ruaj khov ntawm cov thee-dej slurry thaum lub sijhawm khaws cia thiab thauj mus los yog qhov tseem ceeb heev, vim tias cov thee-dej slurry yog qhov sib xyaw ntawm cov khoom khov thiab cov kua, thiab nws yooj yim cais cov khoom khov thiab kua, yog li nws yuav tsum tsis txhob muaj "nag nyuaj" tshwm sim thaum lub sijhawm khaws cia thiab thauj mus los. Qhov hu ua "nag nyuaj" txhais tau tias cov nag uas tsis tuaj yeem rov qab mus rau nws lub xeev qub los ntawm kev sib tov cov thee-dej slurry. Lub peev xwm ntawm cov thee-dej slurry los tswj kev ua haujlwm ntawm kev tsis tsim cov nag nyuaj hu ua "kev ruaj khov" ntawm cov thee-dej slurry. Cov thee-dej slurry nrog kev ruaj khov tsis zoo yuav cuam tshuam loj heev rau kev tsim khoom thaum nag tshwm sim thaum lub sijhawm khaws cia thiab thauj mus los.
II. Kev Txheeb Xyuas Txog Kev Siv Tshuab Ua Cov Tshuaj Slurry Los Ntawm Thee Thiab Dej
Cov dej ntws ntawm cov thee yuav tsum muaj cov thee ntau, cov khoom me me, cov kua dej zoo, thiab kev ruaj khov zoo kom tsis txhob muaj dej nag ntau. Nws yuav nyuaj rau ua kom tau raws li tag nrho cov khoom saum toj no tib lub sijhawm, vim tias qee qhov ntawm lawv raug txwv. Piv txwv li, kev nce qhov concentration yuav ua rau cov viscosity nce thiab cov kua dej kom puas tsuaj. Cov kua dej zoo thiab cov viscosity qis yuav ua rau qhov ruaj khov zuj zus. Yog li ntawd, nws yog qhov tsim nyog los saib xyuas qhov concentration hauv lub sijhawm tiag tiag. LubLonnmeterlub ntsuas qhov ceev ntawm tesmuaj qhov tseeb txog li 0.003 g / ml, uas tuaj yeem ua tiav qhov ntsuas qhov ceev thiab tswj qhov ceev ntawm cov slurry kom raug.
1. Xaiv cov thee nyoos rau kev ua pulping kom raug
Ntxiv rau qhov ua tau raws li qhov xav tau ntawm cov neeg siv khoom hauv qab, qhov zoo ntawm cov thee rau pulping kuj yuav tsum tau them sai sai rau nws cov khoom pulping - qhov nyuaj ntawm pulping. Qee cov thee yooj yim ua cov thee-dej slurry siab nyob rau hauv cov xwm txheej ib txwm muaj. Rau lwm cov thee, nws nyuaj lossis xav tau cov txheej txheem pulping nyuaj dua thiab tus nqi siab dua los ua cov thee-dej slurry siab. Cov khoom pulping ntawm cov khoom siv raw rau pulping muaj kev cuam tshuam loj heev rau kev nqis peev, tus nqi tsim khoom thiab qhov zoo ntawm cov thee-dej slurry ntawm lub Hoobkas pulping. Yog li ntawd, txoj cai ntawm cov khoom pulping thee yuav tsum tau ua kom paub, thiab cov thee nyoos rau pulping yuav tsum tau xaiv raws li qhov xav tau tiag tiag thiab cov ntsiab cai ntawm kev ua tau zoo thiab kev lag luam.
2. Kev ntsuas qib
Cov dej ntws los ntawm cov thee tsis yog tsuas yog xav kom cov thee me me kom txog qhov zoo xwb, tab sis kuj xav kom muaj kev faib tawm zoo ntawm cov khoom me me, yog li cov thee me me ntawm ntau qhov loj me tuaj yeem sau ua ke, txo qhov sib txawv ntawm cov thee me me, thiab ua tiav "kev ua haujlwm zoo dua". Qhov sib txawv tsawg dua tuaj yeem txo qhov ntau ntawm cov dej siv, thiab nws yooj yim los ua cov dej ntws los ntawm cov thee me me uas muaj cov concentration siab. Cov thev naus laus zis no qee zaum hu ua "kev ntsuas qib".
3. Cov txheej txheem pulping thiab cov khoom siv
Raws li cov yam ntxwv ntawm cov thee nyoos thiab cov xwm txheej sib tsoo, yuav ua li cas kom qhov faib tawm ntawm cov khoom kawg ntawm cov thee-dej slurry ua tiav qhov "stacking efficiency" siab dua yuav tsum muaj kev xaiv cov khoom siv sib tsoo thiab cov txheej txheem pulping tsim nyog.
4. Xaiv Cov Khoom Siv Ntxiv Uas Sib Xws Nrog Kev Ua Tau Zoo
Yuav kom cov thee-dej slurry ua tau qhov concentration siab, viscosity qis, thiab rheology zoo thiab ruaj khov, yuav tsum siv me ntsis cov tshuaj lom neeg, hu ua "additives". Cov molecule ntawm cov additive ua rau ntawm qhov sib tshuam ntawm cov thee me me thiab dej, uas tuaj yeem txo viscosity, txhim kho kev sib kis ntawm cov thee me me hauv dej, thiab txhim kho kev ruaj khov ntawm cov thee-dej slurry. Tus nqi ntawm cov additives feem ntau yog 0.5% txog 1% ntawm tus nqi thee. Muaj ntau hom additives, thiab cov mis tsis ruaj khov thiab yuav tsum tau txiav txim siab los ntawm kev tshawb fawb sim.
Lub sijhawm tshaj tawm: Lub Ob Hlis-13-2025
