Kev kho cov dej khib nyiab hauv kev khawb av yog ib qho ntawm cov teeb meem nyuaj tshaj plaws ntawm kev tswj dej hauv kev lag luam.Polyacrylamide(PAM), ua ib yam khoom siv flocculant zoo heev, ua lub luag haujlwm tseem ceeb hauv kev kho cov dej khib nyiab hauv kev khawb av. Txawm li cas los xij, tsis yog txhua yam khoom PAM tsim nyog rau kev kho cov dej khib nyiab hauv kev khawb av. Kev xaiv hom zoo, qhov hnyav molecular, qhov ceev ntawm cov nqi, thiab txoj kev siv cuam tshuam ncaj qha rau kev kho kom zoo, kev siv nyiaj tsim nyog, thiab kev ua raws li cov qauv tso dej khib nyiab.
Tsab xov xwm no yuav piav qhia txog yuav ua li cas xaiv cov khoom PAM zoo rau kev kho cov dej khib nyiab hauv kev khawb av, lub hom phiaj yog los pab cov engineers, cov pab pawg yuav khoom, thiab cov neeg ua haujlwm hauv kev txiav txim siab zoo.
Nkag Siab Txog Cov Yam Ntxwv ntawm Cov Dej Pov Tseg Hauv Kev Ua Mining
Cov dej khib nyiab hauv kev khawb av feem ntau muaj cov khoom khov uas raug tshem tawm ntau, cov hlau hnyav, cov khoom me me, thiab cov tshuaj lom neeg seem. Kev nkag siab txog cov yam ntxwv ntawm cov dej khib nyiab hauv kev khawb av yog qhov tseem ceeb ua ntej xaiv PAM. Cov haujlwm khawb av sib txawv tsim cov dej khib nyiab sib txawv:
Cov Chaw Uas Muaj Dej Pov Tseg Hauv Kev Ua Av
- ▶ Kev khawb thee thiab ntxuav
- ▶ Kev khawb hlau (kub, tooj liab, hlau, zinc)
- ▶ Kev khawb av tsis tshua muaj
- ▶ Kev khawb av thiab kev ua cov pob zeb sib xyaw
- ▶ Kev tso tawm ntawm kev txiav khaub ncaws
Cov Khoom Phem Feem Ntau Hauv Cov Dej Pov Tseg Hauv Kev Ua Mining
- ▶ Cov khoom khov me me (av nplaum, silica, silt)
- ▶ Cov hlau hnyav ions (hlau, tooj liab, txhuas, zinc, manganese)
- ▶ Muaj qhov turbidity siab
- ▶ Cov xwm txheej pH uas muaj kua qaub lossis alkaline
- ▶ Cov organic thiab inorganic colloids
Cov Teeb Meem Hauv Kev Kho Dej Pov Tseg Hauv Kev Ua Mining
- ▶ Qhov loj me me heev (nyuaj rau kev daws teeb meem ntuj)
- ▶ Muaj zog ruaj khov ntawm cov colloids
- ▶ Cov sludge ntau heev
- ▶ Kev sib txawv ntawm cov dej zoo thoob plaws theem kev khawb av
Vim yog cov yam no, qhov ua tau zoo ntawm kev ua kom cov flocculation ua qhov tseem ceeb rau kev kho mob kom zoo, thiab polyacrylamide (PAM) yog siv dav ua cov tshuaj tseem ceeb.
Lub Luag Haujlwm ntawm Polyacrylamide hauv Kev Kho Dej Pov Tseg Mining
Polyacrylamide (PAM) yog ib hom polymer uas yaj tau hauv dej uas siv los ua flocculant. Nws muab cov khoom me me uas raug dais los sib sau ua ke ua cov flocs loj dua, ua rau cov av noo lossis kev lim dej sai dua.
- ✓ Kev sib cais ntawm cov khoom khov thiab kua zoo dua
- ✓ Kev nrawm nrawm dua
- ✓ Txo qhov turbidity
- ✓ Kev pab tshem cov dej sludge
- ✓ Txo cov tshuaj oxygen demand (COD) hauv qee kis
Hom Polyacrylamide
PAM feem ntau muab faib ua peb pawg:
Nyob ntawm cov yam ntxwv tshwj xeeb ntawm cov dej khib nyiab, qhov ua tau zoo ntawm kev kho dej ntawm txhua hom sib txawv.
Cov Yam Tseem Ceeb rau Kev Xaiv PAM hauv Cov Dej Pov Tseg Hauv Kev Ua Mining
Kev xaiv PAM tsis yog kev txiav txim siab ib zaug xwb. Cov yam hauv qab no yuav tsum tau soj ntsuam kom zoo.
Hom PAM (Xaiv Tus Nqi)
Anionic Polyacrylamide (PAM) yog siv dav hauv kev kho cov dej khib nyiab hauv kev khawb av vim tias feem ntau cov khoom me me nqa lub zog zoo - lossis lub zog nruab nrab - nyob rau hauv cov xwm txheej acidic, yog li ua rau muaj kev nqus tau zoo.
Zoo Tshaj Plaws Rau:
- Cov dej ntxuav thee
- Kev ua kom cov hlau zoo dua
- Kev kho cov tailings
- Cov dej uas muaj cov av ntau
Cov txiaj ntsig:
- Cov nyhuv txuas ntxiv muaj zog
- Kev tsim cov floc sai
- Tus nqi tsim nyog
Cationic polyacrylamide tsis tshua siv rau hauv cov dej khib nyiab uas tsis tau kho, tab sis nws ua lub luag haujlwm tseem ceeb hauv kev kho cov sludge.
Zoo Tshaj Plaws Rau:
- Kev siv cov dej khib nyiab hauv kev ua haujlwm mining
- Cov dej khib nyiab uas muaj cov organic me me uas muaj cov nqi tsis zoo
Cov txiaj ntsig:
- Kev tshem tawm cov nqi zog muaj zog
- Zoo rau kev kho cov sludge
Cov polyacrylamide uas tsis yog ionic yog siv rau hauv cov xwm txheej tshwj xeeb uas kev sib cuam tshuam electrostatic tsawg heev.
Zoo Tshaj Plaws Rau:
- Cov dej khib nyiab uas muaj cov av qis
- Cov txheej txheem muaj ntsev ntau
- Ib puag ncig pH nruab nrab
Kev Xaiv Qhov Hnyav Molecular
Qhov hnyav ntawm cov molecular txiav txim siab qhov ntev ntawm cov saw hlau ntawm polyacrylamide (PAM) thiab cuam tshuam ncaj qha rau qhov loj ntawm cov flocs.
Qhov Hnyav Molecular Tsawg
- Yaj sai dua
- Muaj peev xwm ua cov floc tsis muaj zog
- Tsis tshua siv rau kev khawb av dej khib nyiab
- Kev ua tau zoo sib npaug
- Haum rau cov dej uas muaj qhov turbidity nruab nrab
Qhov Hnyav Molecular Siab
- Cov nyhuv txuas ntxiv muaj zog
- Tsim cov flocs loj, sai sai
- Haum rau kev kho dej khib nyiab hauv av
Cov Lus Qhia:
Rau cov dej khib nyiab hauv kev khawb av—vim muaj cov khoom me me thiab ruaj khov—polyacrylamide hnyav molecular siab (PAM) feem ntau yog qhov kev xaiv zoo tshaj plaws.
Kev Ceev Ceev
Qhov ceev ntawm cov nqi them yog hais txog qhov ntau ntawm cov nqi ionic uas muaj nyob rau ntawm cov saw polymer.
Qhov Ceev Tsawg
- Haum rau cov dej uas muaj kuab paug me ntsis
- Muaj peev xwm ua kom cov dej khov tsis muaj zog
Qhov Ceev Nruab Nrab
- Kev ua tau zoo sib npaug
- Haum rau cov dej khib nyiab sib xyaw ua ke
Kev Them Nqi Siab
- Muaj zog adsorption affinity rau cov khoom me me
- Zoo tshaj plaws rau kev kho cov dej khib nyiab uas muaj cov concentration siab heev
Cov Lus Qhia Txog Kev Kho Dej Pov Tseg Hauv Kev Ua Av:
Siab Turbidity → Siab Charge Ceev Anionic Polyacrylamide
Cov Txheej Txheem Sib Xyaws → Nruab Nrab Charge Density PAM
Cov xwm txheej pH ntawm dej
pH ua lub luag haujlwm tseem ceeb hauv kev ua haujlwm ntawm flocculation.
- Cov dej khib nyiab uas muaj kua qaub (pH < 6):CPAMor NPAM ua haujlwm tau zoo.
- Cov dej khib nyiab tsis muaj zog (pH 6–8): Ob qho tib si anionic thiab nonionic polyacrylamide siv tau.
- Cov dej khib nyiab alkaline (pH > 8): Yuav tsum tau xaiv kom zoo; feem ntau nyiam siv anionic PAM, thiab yuav tsum tau hloov kho cov tshuaj.
Vim yog kev ua cov hlau, cov dej khib nyiab hauv kev khawb av feem ntau yog acidic, ua rau anionic polyacrylamide yog qhov kev xaiv feem ntau.
Kev Faib Tawm Qhov Loj ntawm Cov Khoom Me Me Uas Tau Muab Tshem Tawm Hauv Cov Dej Pov Tseg
Cov khoom me me ua rau nyuaj rau kev sib sau ua ke.
- Cov khoom me me: Cov polyacrylamide uas muaj qhov hnyav molecular tsawg yuav txaus.
- Cov colloids zoo: Yuav tsum tau cov polyacrylamide hnyav molecular siab.
- Cov tailings zoo heev: Yuav tsum tau muaj qhov ceev ceev + lub kaw lus dosing zoo tshaj plaws.
Cov yam ntxwv ntawm cov sludge hauv cov dej khib nyiab hauv qhov av
Yog tias PAM siv rau kev tshem cov sludge:
- Cov organic sludge ntau: Cationic polyacrylamide yog qhov zoo dua
- Cov av nkos inorganic: Anionic polyacrylamide (PAM) yog qhov zoo dua
- Cov av nkos sib xyaw: Yuav tsum tau kuaj hauv chaw kuaj mob
Kev Txhim Kho PAM Dosage
Txawm tias PAM zoo tshaj plaws los yuav ua tsis tiav yog tias cov tshuaj noj tsis raug.
Tsis txaus koob tshuaj:
- Kev tsim cov floc tsis zoo
- Cov dej phwj tuaj ntau heev
Kev noj tshuaj ntau dhau
- Kev kho kom rov qab zoo li qub ntawm cov khoom me me
- Cov nqi nce ntxiv
- Cov av nplaum nplaum
Kev coj ua zoo tshaj plaws:
Ib txwm ua qhov kev sim hauv lub thawv ua ntej siv tag nrho.
Daim Ntawv Qhia Txog Kev Siv PAM hauv Kev Kho Dej Pov Tseg Hauv Qhov Chaw Ua Si
Kev siv kom raug yog qhov tseem ceeb ib yam li kev xaiv cov khoom.
Kev Txiav Txim Siab Txog Kev Yaj
- Siv dej huv (tsis txhob siv dej uas tawv heev)
- Kev Ntsuas: 0.1% - 0.5%
- Maj mam do rau 30-60 feeb
- Tsis txhob do ceev ceev (kom tiv thaiv kev tawg ntawm cov saw polymer)
Kev Xaiv Qhov Txhaj Tshuaj
- Ntxiv polyacrylamide (PAM) tom qab cov coagulants (piv txwv li, polyaluminum chloride lossis ferric salts).
- Nco ntsoov do kom zoo ua ntej muab cov av tso rau hauv av.
Cov Kev Cai Sib Xyaws
- Theem Sib Tov Sai: Xyuas kom meej tias muaj kev faib tawm sib npaug
- Theem Flocculation: Cov xwm txheej qis shear xav tau rau kev loj hlob ntawm floc
Thaum Twg Yuav Tsum Muaj Kev Sib Xyaws PAC + PAM Hauv Kev Kho Dej Pov Tseg Hauv Kev Ua Lag Luam Mining?
Kev Txhim Kho PAM Dosage
Nta:
- Cov khoom khov kho siab heev
- Cov khoom me me thiab ntau yam
- Xim av daj
Piv txwv li:
- Cov dej khib nyiab hauv kev khawb av
- Cov dej khib nyiab
- Cov dej khib nyiab los ntawm cov xuab zeb thiab cov pob zeb
Kev Xav Txog Kev Kho Mob:
- PAC ua ntej nias ob txheej hluav taws xob, cuam tshuam kev ruaj khov.
- Tom qab ntawd PAM ua qhov kev sib txuas ntawm flocculation.
- Qhov no yog qhov xwm txheej siv ua ke feem ntau.
Feem pua ntawm cov khoom Colloidal siab
Cov yam ntxwv:
- Qhov me me heev ntawm cov khoom me me (<1 μm)
- Nqa ib qho nqi tsis zoo ruaj khov
- Nyuaj rau kev nyob kaj siab lug ntuj tsim
Piv txwv li:
- Cov dej khib nyiab los ntawm cov av nplaum
- Cov dej khib nyiab los ntawm kev ntxuav concentrate
Vim li cas thiaj xav tau PAC:
- Cov nqi nce ntxiv
- Kev ua kom tsis muaj zog nrog PAC yog qhov tsim nyog ua ntej
Qhov Zoo ntawm Dej Uas Hloov Pauv Tau Zoo Heev
Cov yam ntxwv:
- Kev hloov pauv loj hauv pH thiab turbidity
- Cov khoom khov tsis ruaj khov
Piv txwv li:
- Cov dej ntws sib xyaw los ntawm cov pob zeb sib txawv
- Cov dej khib nyiab tsim tawm tsis tu ncua
Vim li cas siv ua ke:
- PAC muab "kev ruaj khov yooj yim"
- PAM kho cov qauv floc
Kev Xav Tau Sai Sai
Piv txwv li:
- Cov khoom ua kom cov tailings tuab
- Cov tshuaj ua kom huv si ceev ceev
Cov txiaj ntsig ntawm kev siv ua ke:
- PAC tsim cov micro-flocs
- PAM tsim cov macro-flocs
- Kev ceev ntawm kev daws teeb meem tau zoo dua qub
Qhov Yuav Tsum Tau Siv Dej Dua Hauv Qab Av
Cov Kev Cai:
- Qhov turbidity qis dua
- Cov khoom qis dua (SS)
Piv txwv li:
- Cov tshuab dej siv dua tshiab hauv kev lag luam
- Cov dej ntxuav hauv cov dej ntws
Cov txiaj ntsig ua ke:
- PAC tshem tawm cov khoom me me
- PAM txhim kho kev lim dej kom zoo dua
Muaj Cov Khoom Siv Mineral Sib Xyaws
Cov yam ntxwv:
- Kev them nqi ntawm qhov chaw nyuaj; Kev sib kis muaj zog
Piv txwv li:
- Cov dej khib nyiab sib xyaw ua ke ntawm tooj liab + hlau; Cov khoom seem polymetallic
Cov Kev Daws Teeb Meem:
- PAC (Polymerized Charge Environment); PAM (Polymerized Aggregator) kom ua tiav kev sib sau ua ke ntawm cov qauv
Xaus lus
Kev xaiv hom PAM uas tsim nyog rau kev kho cov dej khib nyiab hauv kev khawb av yog qhov kev txiav txim siab txog kev siv tshuab uas cuam tshuam ncaj qha rau kev ua haujlwm ntawm kev kho, cov nqi khiav lag luam, thiab kev ua raws li ib puag ncig. Rau feem ntau ntawm cov ntawv thov dej khib nyiab hauv kev khawb av, cov polyacrylamide anionic hnyav molecular tseem yog qhov kev xaiv siv dav tshaj plaws thiab muaj txiaj ntsig zoo, tab sis qhov kev xaiv zoo tshaj plaws yuav tsum yog raws li kev sim hauv chaw kuaj mob thiab kev lees paub hauv daim teb.
Yog tias koj tab tom cuam tshuam nrog cov dej ntws qeeb qeeb, cov dej ntws turbidity siab, lossis cov dej khib nyiab uas hloov pauv ntau heev, thiab nrhiav tus neeg muab khoom PAM uas ntseeg tau nrog kev pabcuam zoo thiab kev txhawb nqa, Yuncang yog koj qhov kev xaiv zoo tshaj plaws.
Peb muab ntau tshaj li cov tshuaj lom neeg xwb; peb muab cov kev daws teeb meem flocculation raws li koj cov dej zoo. Txawm tias koj xav tau kho cov tailings ultrafine, cov dej khib nyiab uas muaj cov sludge ntau, lossis cov kab ke uas muaj pH hloov pauv ntau, peb pab neeg kws tshaj lij tuaj yeem pom zoo cov qauv khoom PAC thiab PAM zoo tshaj plaws, cov koob tshuaj, thiab cov tswv yim dosing kom ntseeg tau tias cov dej ntws sai, dej ntshiab, thiab cov txheej txheem pov tseg sludge tom qab yooj yim dua.
Nrog kev muab khoom ruaj khov thiab kev nkag siab txog cov khoom lag luam zoo, peb cog lus tias yuav pab koj ua tiav cov txiaj ntsig kev kho dej khib nyiab uas ruaj khov thiab txhim khu kev qha, kom ntseeg tau tias txhua pawg ua tau raws li cov qauv xav tau.
Tiv tauj peb hnub no kom tau txais cov qauv PAM rau koj cov kev xav tau kev kho dej khib nyiab hauv kev khawb av, cov lus qhia kuaj beaker dawb, thiab cov kev daws teeb meem tshwj xeeb.
Lub sijhawm tshaj tawm: Tsib Hlis-06-2026
