1. Cov txheej txheem ntau lawm thiab cov cuab yeej xaiv logic
2. Qhov tseem ceeb rau kev cuam tshuam cov khoom siv
3. Cov thev naus laus zis rau kev txhim kho kev ntseeg siab
1. Cov txheej txheem ntau lawm thiab cov cuab yeej xaiv logic
Raws li ib qho tseem ceeb cov khoom siv cov khoom nyoos, phosphoric acid muaj ob cov txheej txheem tseem ceeb: thermal thiab ntub. Cov cuab yeej xaiv tau xav kom muaj kev tiv thaiv cov txheej txheem, thiab kev tiv thaiv ib puag ncig kom ntseeg tau, kev tiv thaiv kev ruaj khov, thiab ib puag ncig kev tiv thaiv ntawm cov txheej txheem ntau lawm.
Cov txheej txheem ntub dej (kev xaiv Mainstram):
Cov tshuaj txhuam hniav ntub dej ntau lawm yog qhov kev xaiv tseem ceeb tam sim no. Cov txheej txheem no feem ntau yog siv cov sulfuric acid kom thiaj li ua rau cov tshuaj phosphote rauTsim Phosphoric AcidCov. Txij li cov qib phosphate monte tuaj yeem hloov kho zoo ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv, cov cuab yeej txhawb nqa yuav tsum muaj kev yoog raws li ore kev hloov pauv. Nyob rau tib lub sijhawm, cov sulfuric acid yog qhov nruab nrab ntawm nruab nrab, thiab cov khoom siv kuj yuav tsum muaj lub zog muaj zog los lis cov xov xwm corrosive.
Reactor System:
Hauv kev tsim cov ntub dej phosphoric acid, reactor system plays lub luag haujlwm tseem ceeb. Cov tshuaj reactors muaj ntau ntau theem tso tsheb hlau luam lossis tubular reactors. Vim tias qhov muaj zog corrosiveness ntawm sulfuric acid, txhawm rau kom cov kev pabcuam lub neej thiab kev nyab xeeb ntawm kev tsim khoom, cov reaors yuav tsum yog ntawm 316L stainless hlau lossis titanium alloy. 316L stainless hlau muaj zoo corrosion tsis kam thiab muaj peev xwm tiv thaiv cov xeb ntawm sulfuric acid rau qee yam; Thaum titanium alloy muaj ntau dua corrosion tsis kam, tshwj xeeb yog tsim nyog rau cov chaw muaj kev nyuaj siab ntxiv. Hauv kev tsim khoom tiag tiag, ntau-theem tank siv ib qho khoom siv starring sab hauv kom ua kom muaj kev sib xyaw thiab kev sib txig sib luag thiab cov tshuaj tiv thaiv zoo; Tubular rearsor muaj cov yam ntxwv ntawm kev nrawm nrawm nrawm thiab muaj kev ua tiav los ntawm kev ntws thiab cov tshuaj tiv thaiv ntawm cov ntaub ntawv hauv cov raj xa dej.
Cov khoom siv lim dej:
Tom qab cov tshuaj tiv thaiv ua tiav, cov khoom lag luam phosphoric xav tau yuav tsum tau sib cais, uas xav tau siv cov khoom siv lim. Cov khoom siv uas siv tau siv cov khoom siv lim nrog cov lim lim lossis siv lub tshuab nqus dej lim. Qhov pom tseeb ntawm cov khoom siv uas pom tseeb txog 99.5% kom ntseeg tau tias lub ntsiab lus impurity hauv cov phosphoric acid yog qhov ntau tau. Lub lim lim spinTable paub cov kev siv lim sib txuas, ntxuav thiab tsis hloov chaw ua haujlwm ntawm lub turntable, thiab muaj qhov zoo ntawm kev ua haujlwm siab thiab kev ua haujlwm ruaj khov; Lub hauv paus siv lub tshuab nqus tsev lim siv cov tshuab lim kom ua tiav cov ntaub ntawv lim, thaum cov nyhuv gypsum
Cov khoom siv siab:
Cov concentration ntawm phosphoric acid tau tom qab pom kev feem ntau yog tsawg thiab xav tau muaj kev xav. Cov khoom lag luam siab feem ntau siv cov txiaj ntsig ntau evaporator lossis lub tshuab nqus tsev. Thaum lub sij hawm siv cov txheej txheem kev xav, cov kua qaub phosphoric xav tau kev tswj hwm rau 50-54% p₂o₅. Txij li thaum phosphoric acid muaj fluoride r fluoride thiab yog cov khoom siv fluorive, cov leeg ua hluav taws xob yuav tsum tau muab tso nrog cov tshuaj tua hluav taws hastelloy uas tiv taus fluoride ion corrosion. Hastelloy muaj cov tshuaj tiv thaiv corrosion zoo heev thiab kub kuj tsis kam, uas tuaj yeem xyuas kom muaj kev ruaj khov thiab kev pabcuam lub neej ntawm cov leeg tshav kub thaum lub sijhawm ua haujlwm siab. Qhov ntau-cov nyhuv evapator txhim kho kev siv hluav taws xob kev ua tau zoo los ntawm kev siv cov chav theem nrab uas tau tsim los ntawm cov cua sov yav dhau los uas yog qhov ua kom sov rau cov nyhuv tom ntej; Lub tshuab nqus tsev ntau dua txo lub kaw lus siab kom yaj thiab ua tib zoo phosphoric acid ntawm cov decomposition phosphoric acid thiab tiam ntawm impurities.
Thermal txheej txheem (siab dawb huv kev thov cov xwm txheej):
Cov thermal phosphoric acid ntau lawm txheej txheem yog tsuas haum rau cov xwm txheej nrog cov phiaj xwm siab rau phosphoric acid purity. Cov txheej txheem no ua rau phosphoric acid los ntawm cov kauj ruam xws li daj phosphorus sib xyaw thiab kev nqus dej.
Daj phosphorus combustion Ntauwd:
Cov xim daj phosphorus combustion ntauwd yog ib qho ntawm cov khoom tseem ceeb rau thermalPhosphoric Acid Ntau LawmCov. Nws tau txais ib qho Quartz lined kev sib txuas ua ke. Quartz muaj qhov kub siab tiv thaiv thiab tshuaj lom neeg ruaj khov, thiab tuaj yeem tiv taus qhov siab kub thiab corrosive gases tsim thaum daj phosphorus yog hlawv. Thaum lub sij hawm sib txuas ua ke, ntsuas qhov ntsuas kub yuav tsum tau mus txog qhov kev hloov pauv ntawm daj thiab cov zoo ntawm phosphoric acid. Qhov tseeb Kev Tswj Kub Kub tuaj yeem ua kom muaj kev sib txuas tag nrho ntawm daj phosphorus thiab txo cov kev tshwm sim ntawm sab kev ntxias, yog li kev txhim kho lub purity thiab tawm los ntawm phosphoric acid. Los ntawm kev tswj hwm kub siab thiab ntsuas cov khoom siv thiab ntsuas kub hauv kev sib txuas ua ke yog kev saib xyuas thiab kho tau lub sijhawm ua haujlwm ruaj khov ntawm cov txheej txheem ntau lawm.
Hydration nqus pej thuam:
Cov hydration nqus pej thuam yog siv los hloov cov pa phosphorus pentoxide roj tsim los ntawm kev sib txuas rau hauv phosphoric acid los ntawm kev ua dej cawv. Tus ntauwd adopts ib qho kev txau cov tshuaj tsuag. Cov qauv tsim no tso cai rau dej thiab phosphorus pentoxide roj mus rau kev sib cuag kom tiav thiab txhim kho kev ua haujlwm kom haum. Nyob rau tib lub sijhawm, cov hydration nqus pej thuam yog nruab nrog tus neeg tiag tiag PHU-PHEM NQI HLOOV MENULE. Los ntawm kev saib xyuas tiag tiag ntawm tus nqi ntawm tus nqi ntawm kev nqus cov kua, lub siab thiab txaus tus nqi ntawm cov kua nqus tau tuaj yeem hloov kho kom muaj kev phom sij tag nrho. Thaum twg tus py tus nqi los ntawm cov pawg teeb meem, lub kaw lus yuav hloov kho kom ua tau zoo thiab haum cov txiaj ntsig ntawm phosphoric acid. Hauv kev tsim qauv tiag tiag, cov qauv hauv sab hauv thiab cov haujlwm ua haujlwm ntawm kev nqus ntau ntau yuav tsum tau ua kom zoo dua los txhim kho kev nqus tau zoo thiab cov khoom zoo.
2.key yam cuam tshuam rau kev xaiv khoom siv
(1) Cov Khoom Siv Raw Khoom Sib Txuas Tsim
Tuav ntawm cov qib qis phosphote ore:
Kev tuav cov ore tsawg los yog qhov teeb meem tseem ceeb hauv phosphoric acid ntau lawm. Txij li cov ntsiab lus ntawm phosphorus pentoxide (p2o2) hauv cov ore tsawg yog tsawg, qhov kev sib tsoo tshwj xeeb yog tsim nyog los txhim kho tus nqi rov qab ntawm P2O2. Cov khoom siv cov menyuam ntsug yog ib feem siv siv ore-sib tsoo cov khoom siv. Nws ua kom cov khoom sib tsoo los ntawm kev sib tsoo thiab sib tsoo lub ore nrog cov menyuam. Qhov ua kom zoo yog cov nplais muaj qhov chaw loj thiab tuaj yeem tiv thaiv cov tshuaj tiv thaiv kab mob tom ntej, yog li kev txhim kho cov tshuaj tiv thaiv kev ua haujlwm thiab tus nqi ntawm p2o2. Ib qho ntxiv, cov khoom siv ntxhua khaub ncaws kuj tseem yog ib qho cuab yeej tseem ceeb rau kev tuav cov ore tsawg. Thaum lub sij hawm flotation, los ntawm kev ntxiv cov pa roj hmab tsim nyog, cov khoom noj qab zib ntawm cov xyoob ntoo thiab cov tub rog ua kom sib txawv, thiab kev txhim kho cov zaub mov tsis sib xws, thiab txuas ntxiv txhim kho tus nqi rov qab ntawm P2O2. Tom qab cov kauj ruam kev kho mob no, txoj kev rov ua hauj lwm zoo ntawm p₂o₅ hauv bes-qib phosphote ore tuaj yeem tsim kho tau zoo, thiab tus nqi tsim tau tuaj yeem txo qis.
Kabmob tswj cov khoom:
Tshuaj phosphate feem ntau muaj cov impurities xws li fluorine thiab cov hlau hnyav, uas yuav muaj cov txiaj ntsig zoo ntawm cov txheej txheem phosphoric. Lub defluorination reactor yog nruab nrog sodium carbon carbonate ntxiv. Thaum lub sij hawm cov txheej txheem cov tshuaj tiv thaiv, sodium carbonate exacts thiab cov tshuaj fluoride xws li sodium fluoride, yog li ua tiav lub hom phiaj ntawm defluorination. Los ntawm kev tswj hwm kom yooj yim ntxiv cov nyiaj ntxiv ntawm cov sodium carbonate thiab cov tshuaj tiv thaiv kab mob, cov fluorine cov ntsiab lus hauv phosphoric acid tuaj yeem raug txo kom zoo. Nyob rau tib lub sijhawm, cov khoom siv hnyav hlau ion adsorption cov ntaub ntawv, xws li ua kom cov pa roj carbon tshwj xeeb, thiab hloov kho cov hlau hnyav hauv phosphoric acid. Cov ntaub ntawv adsorption muaj qhov chaw loj thiab muaj peev xwm xaiv adsorpt, thiab tuaj yeem xaiv adsorb hnyav ntawm cov khoom lag luam phosphoric acid cov qauv.
(2) Lub Zog Txhim Kho Kev Txhim Kho Txhim Kho Kev Txhim Kho
Cua sov rov qab System:
Nyob rau hauv cov txheej txheem phosphoric acid ntau lawm, muaj ntau ntau ntawm cov khib nyiab loj yuav raug tso tawm hauv theem tshuaj tiv thaiv. Txhawm rau txhim kho kev siv hluav taws xob, kev siv cov tshuaj tiv thaiv pov kom muaj cua sov nyob rau hauv seem siab yog qhov ua tau zoo-txuag hluav taws xob ntsuas. Los ntawm rationalally tsim cov khoom siv cua sov, cov khoom siv cua sov tau tsim los ntawm cov khoom siv hauv cov khoom siv sab nraud thaum lub sijhawm ua haujlwm sab nraud thaum lub hom phiaj. Raws li kev txheeb cais, siv cov cua sov rov qab los ntawm cov chav noj haus los ntawm}%, zoo heev txo tus nqi them rau hauv cov txheej txheem ntau lawm. Nyob rau tib lub sijhawm, qhov kev pov tseg no khib nyiab no tseem yog nyob rau hauv kab nrog lub tswv yim ntawm kev loj hlob ntawm kev loj hlob, txo cov hluav taws xob thiab cuam tshuam ib puag ncig.
Muaj kev txawj ntse ntse hloov:
Cov cuab yeej siv hluav taws xob siab xws li twj thiab kiv cua yog lub zog tseem ceeb siv cov cuab yeej hauv phosphoric acid ntau lawm. Los ntawm kev siv cov neeg txawj ntse hloov pauv kev hloov pauv hloov tshiab ntawm cov khoom siv no tuaj yeem hloov kho lub sijhawm raws li kev xav tau tiag tiag. Thaum cov khoom lag luam ntau lawm, cov kev ua haujlwm ntawm cov khoom siv tau txo kom txo tau kev siv hluav taws xob; Thaum cov khoom lag luam ntau lawm, kev ua haujlwm ntawm cov khoom siv tau nce siab kom tau raws li cov kev xav tau kev tsim khoom. Los ntawm cov qauv ntse tswj txoj kev tswj hwm, kev tiv thaiv hluav taws xob txhua xyoo tuaj yeem ncav cuag cov nqi tsim khoom, tab sis kuj tseem txo cov khoom siv hnav thiab txuas ntxiv kev pabcuam lub neej.
3.Key thev naus laus zis rau kev txhim kho kev ntseeg siab
(1) Kev thov tshiab ntawm cov khoom siv los tiv thaiv corrosion
Reactor Lining:
Nyob rau hauv lub reactor ntawm phosphoric acid ntau lawm, muaj cov xov xwm muaj cov sulfuric tau ntau qhov kev xav tau ntawm cov khoom siv hluav taws xob ntawm cov tshuaj reactor. Txawm hais tias cov tsoos roj hmab tsoos muaj qee cov qib ntawm corrosion tsis kam, nws yog nquag thaum muaj kev laus thiab kev cuam tshuam rau kev pabcuam lub neej ntawm cov reactor. Silicon carbide ceramic kho tshuab muab kev daws kom zoo dua rau reactor ob sab phlu. Silicon carbide ceramics muaj cov yam ntxwv ntawm hardness, thiab muaj peev xwm tiv taus cov yaig ntawm cov tub ceev xwm zoo li cov sulfuric acid. Lub neej ntawm reactor hauv ob sab phli cov silicon carlicide ceramic Ceramic Ceramic Ceramic yog 3 npaug uas tau hloov dua siab thiab txhim kho kev txuas ntxiv thiab muaj qhov sib txuas ntawm kev tsim khoom.
Xov Xwm Hluav Taws Xob:
Cov raj xa dej ua haujlwm tau ua haujlwm tseem ceeb ntawm cov khoom thauj mus los hauv phosphoric acid ntau lawm. Txij li thaum phosphoric acid yog cov acidic heev, tshwj xeeb tshaj yog nyob rau hauv lub sam thiaj li, cov xeb tsis kam ntawm cov raj raj yog qhov siab heev. PTFE (polytetrafluoroethylene) lined steel yeeb nkab yog ib qho zoo tshaj plaws cov raj xa dej zoo tshaj plaws. PTFE muaj cov tshuaj ruaj khov zoo thiab tuaj yeem tiv thaiv muaj zog acidic media nrog tus nqi ntawm<1. This type of pipeline can not only ensure the safe transportation of materials, but also effectively prevent pipeline corrosion and leakage, avoiding harm to the environment and production. At the same time, the PTFE-lined steel pipe has a long service life and low maintenance cost, providing a reliable guarantee for the stable operation of Phosphoric kua qaub ntau lawm.
(2) Kev Tshuaj Xyuas Txawj Ntse
Online Analyer:
XRF (x-etay fluorescence spectroscopy) yog siv rau hauv online ntsuas tshuaj xyuas kev hloov pauv ntawm phosphoric acc accor hauv lub sijhawm tiag tiag. Cov thev naus laus zis no tuaj yeem tshawb xyuas qhov muaj pes tsawg leeg thiab muaj kev hloov pauv ntawm phosphoric acid nrog cov raug ntawm 0. 2%. Los ntawm kev soj ntsuam cov kua phosphoric acid concentration hauv lub sijhawm tiag tiag, cov neeg ua haujlwm tuaj yeem hloov kho cov txheej txheem ntau lawm nyob rau hauv lub sij hawm kom ntseeg tau tias qhov zoo ntawm phosphoric acid khoom. Piv txwv li, thaum nws pom tias cov kua phosphoric acciates los ntawm cov nqi ntawm cov tshuaj tiv thaiv lossis cov tshuaj tiv thaiv tuaj yeem hloov kho raws lub sijhawm los ua kom muaj kev nce qib ntawm cov txheej txheem ntau lawm.
Cov txij nkawm txij nkawm platform:
Lub sijhawm ua ntej ntawm kev ua tiav platform sib txuas kev co sensors thiab Ai cov algorithms los saib xyuas thiab tshawb xyuas cov kev ua haujlwm ntawm cov khoom siv hauv lub sijhawm tiag tiag. Qhov kev co sensor tuaj yeem sau cov ntaub ntawv kev co sau cov ntaub ntawv ntawm lub sijhawm tiag tiag, thiab txheeb xyuas thiab ua cov ntaub ntawv ntawm Ai los ntawm Ai Algorithm los xyuas cov peev txheej ua ntej. Piv txwv li, thaum kev hloov pauv txawv txawv tshwm sim hauv cov khoom lag luam thiab kev kho kom zoo rau cov khoom siv tsis ua haujlwm ntawm kev tsim khoom, thiab txhim kho kev ntseeg tau thiab kev sib raug zoo txuas ntxiv.
