Asia Chemical muaj kev paub txog kev lag luam nplua nuj, pab pawg kws tshaj lij, kev tswj xyuas zoo, cov tshuab ua haujlwm zoo thiab cov cuab yeej siv, thiab ua tiav cov kev pabcuam txhawb nqa los muab cov neeg siv khoom thoob ntiaj teb nrog cov kev pabcuam zoo, zoo thiab muaj txiaj ntsig engineering.
Asia Chemical muab kev pabcuam ib-nres los muab koj cov haujlwm tsis muaj kev txhawj xeeb tshaj plaws. Kev tsim qauv kev tswj xyuas, engineering, technology, peev thiab lwm yam.
Taw qhia ntawm Phosphorus Tshuaj Kev Lag Luam
1. Phosphorus, phosphate fertilizer, phosphate kev lag luam
Phosphorus yog cov khoom siv raw khoom siv dav siv thiab ua haujlwm tseem ceeb hauv kev lag luam hauv tebchaws. Daj phosphorus muaj cov khoom muaj zog thiab muaj zog tshuaj lom neeg, thiab tuaj yeem tsim ntau yam khoom. Tam sim no, ntau tshaj li ib nrab ntawm cov phosphorus daj nyob rau hauv lub ntiaj teb no tsuas yog siv los ua phosphoric acid thiab phosphate, uas yog siv rau hauv kev lag luam chiv, tshuaj ntxuav tes, khoom noj khoom haus, kev lag luam tshuaj, tshuaj tua kab thiab phosphates. Kev lag luam xws li kev lag luam hluav taws xob, textiles, iav, metallurgy thiab ceramics kuj muaj kev xav tau ntau ntxiv rau phosphates. Tsis tas li ntawd, cov phosphorus daj tuaj yeem ua rau cov foob pob tawg thiab cov foob pob hluav taws, thiab lwm yam, thiab tuav ib txoj haujlwm hauv kev tiv thaiv hauv tebchaws.
2. Cov txheej txheem ntau lawm ntawm phosphoric acid
2.1 Thermal phosphoric acid ntau lawm
Kev tsim cov txheej txheem thermal phosphoric acid tuaj yeem ua kom yooj yim raws li hauv qab no: kev tsim cov phosphorous daj phosphorus nyob rau hauv lub cub hluav taws xob, combustion, absorption thiab hydrolysis ntawm phosphoric acid.
2.1.1 Ua kom tiav combustion method: (ib kauj ruam txoj kev)
Lub tshuab hluav taws xob uas muaj cov phosphorus ntawm cov hluav taws xob hluav taws xob yog hluav taws xob hluav taws xob ncaj qha, thiab cov roj CO hauv lub tshuab hluav taws xob kuj tseem hlawv ua ke.
Txoj kev no tsis siv rau hauv kev lag luam vim kev siv hluav taws xob tsis zoo (phosphoric anhydride muaj zog corroded, thiab ntau cov tshuaj tiv thaiv tshav kub tsis tuaj yeem siv).
2.1.2 Liquid phosphorus combustion method (ob-kauj ruam txoj kev)
Cov txheej txheem kev lag luam feem ntau, thawj: daj phosphorus hlawv phosphorus pentoxide kom txias thiab nqus phosphoric acid, tseem hu ua dej txias txheej txheem; qhov thib ob: daj phosphorus hlawv phosphorus pentoxide kom txias phosphoric acid, nqus phosphoric acid, tseem hu ua acid txias txheej txheem.
Thermal phosphoric acid generally contains >85% phosphoric acid nrog siab concentration thiab ntshiab zoo. Nws yog cov khoom siv tseem ceeb ntawm phosphoric acid rau cov khoom noj thiab tshuaj lag luam. Thermal phosphoric acid yog tsim nrog phosphorus elemental. 1 tuj ntawm phosphorus elemental (1.38 tons ntawm 100 feem pua phosphoric acid tuaj yeem tsim tau) yuav tsum tau siv hluav taws xob ntawm 12500-15000KWH, uas yog kev lag luam siv hluav taws xob siab.
2.2 ntub phosphoric acid ntau lawm
Nws yog tau los ntawm decomposing phosphate pob zeb nrog inorganic acid: feem ntau siv nitric acid, hydrochloric acid, sulfuric acid thiab fluorosilicic acid. Txij li thaum calcium sulfate muaj ib tug me me solubility thiab yog ib qho yooj yim mus cais los ntawm phosphoric acid, ntub-txheej txheem phosphoric acid yeej yog hais txog phosphoric acid tau los ntawm decomposing phosphate pob zeb nrog sulfuric acid. Nyob ntawm qhov kub thiab txias, phosphoric acid concentration, sulfuric acid ntau npaum li cas thiab lwm yam mob, calcium sulfate hydrate muaj peb hom:
Cov txheej txheem ntau lawm yog raws li nram no:
2.2.1 Dihydrate cov txheej txheem: cov txheej txheem ntau qhov los yog ib qho txheej txheem, tsis muaj txheej txheem rov qab slurry thiab rov qab-slurry txheej txheem, lub tshuab nqus tsev txias thiab cua txias txheej txheem. Cov khoom lag luam feem ntau muaj 28 ~ 32 feem pua P2O5, thiab tag nrho cov phosphorus rov qab: 93 feem pua ~ 97 feem pua. Siv dav hauv ntau lub tebchaws.
2.2.2 Hemihydrate-dihydrate txheej txheem: CaSO4 yog thawj tsim rau hauv hemihydrate crystallization, thiab ces hydrated thiab recrystallized rau hauv dihydrate. Tag nrho cov phosphorus rov qab tus nqi: 98 feem pua ~ 98.5 feem pua.
2.2.3 Dihydrate-semihydrate txheej txheem: Phosphorus tag nrho cov nyiaj rov qab: txog 99 feem pua.
2.2.4 Hemihydrate txheej txheem: siab concentration phosphoric acid 40 feem pua ~ 50 feem pua P2O5 tuaj yeem tau, ammonium phosphate lossis calcium hnyav tuaj yeem tsim ncaj qha, thiab lub Hoobkas loj ntawm 1300T / dP2O5 tau tsim.
3. Kev tsim cov txheej txheem ntawm lwm cov phosphates
Daim duab 1 thiab daim duab 2 qhia txog kev tsim cov kab kos ntawm sodium tripolyphosphate thiab calcium hydrogen phosphate, feem.
2. Kev xaiv khoom siv hauv kev tsim tshuaj phosphorus
1. Kev xaiv phosphoric acid slurry twj tso kua mis
1.1 Pump structure xaiv
Raws li cov yam ntxwv ntawm qhov nruab nrab thiab qhov sib xyaw ua ke hauv cov tshuaj tiv thaiv tank, cov khoom siv thiab cov qauv tsim nyog ntawm lub twj tso kua mis ntws qhov chaw nrog hnav tsis kam thiab corrosion kuj yuav tsum raug xaiv. Nyob rau hauv cov xwm txheej uas cov ntsiab lus ntawm phosphoric acid nruab nrab yog tsawg dua 3 feem pua, qhov corrosion kuj ntawm ultra-low carbon molybdenum tri-titanium thiab aluminium di-titanium zoo heev, tab sis nyob rau hauv cov xwm txheej uas cov ntsiab lus ntawm phosphoric acid slurry yog. 25 feem pua mus rau 35 feem pua, qhov hnav tsis kam tsis siab, kev pabcuam lub neej luv luv. Yog li ntawd, kev saib xyuas tshwj xeeb yuav tsum tau them rau qhov nruab nrab thiab kev ua haujlwm thaum xaiv cov khoom ntawm cov twj tso kua mis ntws.
1.2 Kev xaiv ceev
Thaum lub twj tso kua mis ceev yog siab, nws yuav ceev cov hnav thiab corrosion ntawm cov khoom ntws xws li lub volute thiab impeller. Feem ntau ntawm kev sib hloov ceev ntawm cov twj siv hauv cov nroj tsuag phosphoric acid hauv kuv lub teb chaws thiab cov uas siv nyob rau hauv txawv teb chaws ammonium phosphate nroj tsuag yog 1460 r / min thiab 970 r / min. Yog li ntawd, nyob rau hauv lub premise ntawm txaus siab lub taub hau thiab ntws, lub twj tso kua mis nrog tsawg ceev yuav tsum tau xaiv kom ntau li ntau tau.
1.3 Xaiv lub twj tso kua mis ntsug thiab kab rov tav twj tso kua mis
Piv nrog cov twj ntsug, kab rov tav twj muaj cov hauv qab no zoo:
1.3.1 Tus nqi qis dua, feem ntau yog 1/2 rau 1/3 ntawm lub twj tso kua mis ntsug nyob rau hauv tib lub taub hau thiab ntws cov xwm txheej, lossis txawm tias mus txog 1/4.
1.3.2 Qhov ntev ntawm lub cantilever ncej nyob rau hauv lub ntsug twj tso kua mis txhawb nqa ncej yog txwv, thiab nws yog feem ntau teeb meem los tswj cov kua theem nyob rau hauv ntau lawm.
1.3.3 Yog hais tias lub twj tso kua mis ntsug tsis tuaj yeem ntsia ncaj qha rau ntawm lub tank loj, lub twj tso kua mis ntsug yuav tsum tau teeb tsa, thiab qhov nruab nrab yog muab tso rau ntawm lub tank me me ntawm lub twj tso kua mis ntsug los ntawm kev qhib sab ntawm sab qis ntawm lub tank loj, uas yuav nce peev thiab pov tseg cov neeg ua haujlwm thiab cov khoom siv. .
1.4 Xaiv lub twj tso kua mis impeller hom
Txij li thaum ammonium phosphate slurry, slurry thiab phosphoric acid feem ntau muaj cov khoom, thaum qhov kub thiab txias, cov solubility txo qis thiab precipitates tawm, thiab nws yog ib qho yooj yim los tsim ib txheej txheej nyuaj ntawm lub impeller ntawm lub twj tso kua mis, tshwj xeeb tshaj yog cov volute. Yog li ntawd, nyob rau hauv lub ammonium phosphate phosphate Nyob rau hauv lub ntaus ntawv, qhib impeller feem ntau yog siv, tshwj xeeb tshaj yog nyob rau hauv cov tshuaj tiv thaiv tank ntawm phosphoric acid cog thiab phosphoric acid filtration system, qhib impeller yuav tsum tau xaiv; ammonium phosphate slurry twj tso kua mis yuav tsum tau siv lub impeller qhib.
2. Kev xaiv cov txheej txheem ntub dej phosphoric acid sludge cais cov cuab yeej
Cov khoom impurities uas tawm tsam thaum lub sij hawm cia ntub phosphoric acid yog hu ua sludge, uas tuaj yeem thaiv cov khoom siv, cov kav dej thiab cov cuab yeej thauj mus los, thiab cuam tshuam rau cov khoom zoo. Yog li ntawd, sludge sib cais yuav tsum tau nqa tawm nyob rau hauv zus tau tej cov ntub phosphoric acid.
Cov hauv paus ntsiab lus ntawm kev xaiv cov khoom siv feem ntau yuav tsum txaus siab: tsawg peev, kev ua haujlwm siab, hneev taw me me, kev ua haujlwm yooj yim, ua tiav cov sludge sib cais, thiab cov ntsiab lus tsis tshua muaj kua hauv lub ncuav mog qab zib lim. Vim lub zog me me ntawm lub tshuab nqus tsev pom, thaum cov khoom siv crystalline zoo thaiv cov ntaub lim dej, kev ua haujlwm yuav tsis tuaj yeem ua, uas tsis tuaj yeem ua tau raws li qhov xav tau ntawm phosphoric acid sludge sib cais. Yog li ntawd, raws li tus txheej txheem yuav tsum tau, cov cuab yeej xaiv ib tug pressurized lim. Tom qab kev tshawb fawb thiab kev tsom xam, peb hom kev lim dej hauv qab no tuaj yeem txiav txim siab.
Cim npe nrov: phosphoric acid cog khoom, Tuam Tshoj, manufacturers, lwm tus neeg, Hoobkas, lag luam wholesale, nqe, kev
