Coal ntxuav cov dej khib nyiab yog nqa500-700 mg / L ntawm cov khoom raug tshem tawm, nplua hmoov av, thiab av nplaum uas cov pa sedimentation tso tsheb hlau luam tsuas tuaj yeem daws sai txaus. Ib qho chaw ua lag luam thee hauv Central Asia tau ua pov thawj qhov kho: tom qab txhim kho PP hexagonal tube settlers, SS effluent poob los ntawm 150-250 mg / L mus rau qis dua 40 mg / L (tshaj 90% tshem tawm), lub sij hawm daws teeb meem poob los ntawm 120 feeb mus rau 35, thiab thee rov qab tau nce mus rau 8% ntawm cov nyiaj tau los.
Vim li cas Coal Wastewater Tsis Kho
Coal ntxuav ua cov slurry ntawm cov khoom zoo uas coj tsis zoo li cov dej phwj hauv nroog. Cov khib nyiab tshem tawm yog me me, abrasive, thiab maj mam khom, thaum av nplaum colloids ntxiv viscosity uas inhibits particle collision thiab floc loj hlob. Nyob rau hauv ib tug dawb sedimentation tank, cov particles yuav tsum tau nyob ntev lub sij hawm kom tso tawm - thiab txawm tias thaum ntawd, cov effluent nyob twj ywm turbid.
Qhov kev sib xyaw no ntawmsiab SS, nplua particle loj, thiab nyuaj sedimentationyog raws nraim qhov scenario qhov twg lamella technology excels. Tube settlers muab qhov chaw daws teeb meem zoo nyob rau hauv ib qho kev cog lus me me, tso cai rau cov khoom kom xaub cov kab hauv qab luv luv es tsis txhob poob tag nrho qhov siab ntawm lub tank tob.
Qhov project Overview Thiab Cov yam ntxwv dej khib nyiab
Nyob rau hauv lub thee ua cov nroj tsuag nyob rau hauv Central Asia, qhov project no kho1,200 m3 / hnubntawm ntxuav dej. Cov dej khib nyiab raw profile yog xav tau:
- SS concentration: 500-700 mg / L
- Fine particles: thee hmoov av thiab av nplaum
- High turbidity thiab viscosity
Qhov siab viscosity yog ib qho kev sib tw zais cia: nws ua rau cov khoom ua kom qeeb thiab ua kom zoo txawm tias -flocculated solids coj sluggishly. Ib qho kev daws teeb meem yuav tsum kov yeej ob qho tib si ntawm cov khib nyiab thiab cov kua dej.
Cov kev txwv ntawm Pa Sedimentation
Ua ntej kev txhim kho, cov nroj tsuag cia siab rau ib qho kev tso dej tso rau hauv ib qho kev sib tw uas tawm tsam plaub lub hauv ntej:
- Ntev sedimentation lub sij hawm ntawmNtau dua lossis sib npaug li 120 feeb, yuam ib tug loj tank hneev taw
- Effluent SS tshuav siab ntawm 150-250 mg / L
- Thee rov qab tus nqi tsuas yog kwv yees li 68%, nkim cov khoom muaj nqis
- Nquag sludge tsub zuj zuj yuav tsum tau siv phau ntawv tu thiab downtime
Cov kev txwv no ua rau muaj kev pheej hmoo ntawm ib puag ncig thiab kev lag luam poob: cov khib nyiab tawm mus rau hauv cov dej, thaum cov thee rov qab tau ntws tawm nrog cov dej ntws.
Tube Settler System Design
Xyoo 2024, cov nroj tsuag tau hloov kho nws cov theem sedimentation los ntawm kev txhim kho lub raj xaum module. Cov qauv tsim tau raug xaiv los ua kom pom qhov ua tau zoo tshaj plaws thaum khaws cov hneev taw compact:
| Parameter | Tsim tus nqi |
| Tube Hom | Hexagonal inclined tubes |
| Khoom siv | PP (tiv thaiv - fouling tsim) |
| Lub kaum ntse ntse | 60 degrees |
| Qhov chaw teeb tsa | 120 m2 |
| Hydraulic Retention Sijhawm | 30-40 feeb |
Lub 60-degree inclination cia cov khoom khib nyiab tsis tu ncua ntawm cov phab ntsa hauv lub raj mus rau hauv cov sludge hopper, thaum lub hexagonal geometry maximizes wetted deg cheeb tsam ib square meter. Nyob rau hauv parallel, cov nroj tsuag optimized nws cov txheej txheem flocculation nce toj los txhim kho particle aggregation ua ntej dej nkag mus rau hauv qhov chaw - qhov tseem ceeb rau kev ntes cov av nplaum zoo tshaj plaws thiab cov hmoov av.
Kev Ua Tau Zoo: Ua ntej Vs Tom Qab
| Qhov taw qhia | Ua ntej | Tom qab | Kev txhim kho |
| Influent SS (mg / L) | 500-700 | 500-700 | - |
| Cov kua dej SS (mg / L) | 150-250 | Tsawg dua los yog sib npaug li 40 | >90% tshem tawm |
| Lub Sijhawm Teev Taw (min) | Ntau dua los yog sib npaug rau 120 | 35 | -70% |
| Coal Recovery Rate (%) | 68% | 88-90% | +20% |
Environmental Thiab Economic Benefits
Qhov kev hloov kho tshiab tau xa cov txiaj ntsig ntawm ob sab ntawm daim ntawv tshuav nyiaj. Ib puag ncig, kev txo qis hauv SS ua kom cov nroj tsuag tau raws li cov qauv kev tso tawm, txiav qhov kev pheej hmoo ntawm kev nplua thiab kev sib kis hauv qab. Kev lag luam, dhia hauv thee rov qab los ntawm 68% mus rau88-90%muab cov khoom muag rov qab rau hauv cov nroj tsuag es tsis txhob ntawm lub pas dej tailings.
Lub sijhawm 70% luv dua sedimentation coj tau qhov txiaj ntsig ntxiv: vim tias dej tshem tawm sai dua, cov txheej txheem hneev taw tuaj yeem ua kom deb dua. Qhov ntawd txhais ua cov nqi tsim kho pej xeem qis dua, kev ua haujlwm yooj yim dua, thiab txo kev txij nkawm - tsawg dua cov xwm txheej ntxuav phau ntawv thiab tsawg dua sludge tuav lub nra.
Xaus
Cov ntaub ntawv no tau lees paub tias cov neeg nyob hauv lub raj muaj txiaj ntsig zoo rau kev kho cov dej khib nyiab siab -SS industrial. Lawv ua ntau dua li dej huv - lawv tsim cov nqi nyiaj txiag los ntawm kev rov qab los. Rau cov thee ntxhua khaub ncaws thiab lwm cov khoom lag luam siab -cov khoom lag luam, lub raj xa hluav taws xob yog qhov ua tau zoo, nrawm- txoj kev them rov qab rau kev ua raws cai thiab tau txais txiaj ntsig.
Rov qab 90% ntawm cov thee los ntawm cov dej ntxuav
Hexagonal PP tube settlers txiav SS 90% +, sped settling ntawm 120 mus rau 35 feeb, thiab nqa thee rov qab mus rau 90%. Juntai tube settlers tuav siab -turbidity industrial flows.