Cov ntaub ntawv keeb kwm yav dhau
Txhawm rau txo qhov cuam tshuam ntawm kev tsim cov thee thiab kev loj hlob ntawm ib puag ncig thiab txhim kho kev siv dav dav ntawm cov peev txheej dej, "13th Tsib Xyoo Plan" rau Kev Txhim Kho Kev Lag Luam Coal tso rau pem hauv ntej lub hom phiaj ntawm kev siv dav dav ntawm kuv cov dej. kom ncav cuag li 80% los ntawm 2020. Vim tias tsis muaj cov peev txheej dej thiab cov peev txheej ib puag ncig qis hauv qee thaj chaw ntawm Tuam Tshoj, qhov degree ntawm mine dej salinity siab. Txhawm rau txo qhov cuam tshuam ntawm kuv cov dej hauv ib puag ncig ecological, cov mine dej hauv qee thaj tsam sab hnub poob yuav tsum ua kom tiav xoom tawm.
Cov yam ntxwv ntawm kuv cov dej:
1. Cov ntsiab lus raug tshem tawm ntawm cov dej hauv mines yog qhov siab dua li cov dej saum npoo av, thiab nws tsis ruaj khov heev, nrog rau qhov tsis zoo;
2. Cov khoom me me ntawm cov teeb meem raug tshem tawm, lub teeb ci tshwj xeeb, kev sib haum xeeb qeeb qeeb, tshem tawm cov kab uas hla hauv kuv cov dej me me, qhov nruab nrab tsuas yog 2 ~ 8u m, txog 85% ntawm tag nrho cov teeb meem raug tshem tawm yog qis dua 50um; Qhov nruab nrab ntom ntom ntawm cov hmoov thee feem ntau tsuas yog 1.3 ~ 1.6g / cm³, tsawg dua qhov nruab nrab ntom ntom ntawm cov xuab zeb hauv cov dej saum npoo av 1.9 ~ 2.6g / cm³;
3, muaj mechanical pollutants. Ntxiv rau cov thee pulverized nws tus kheej yog cov organic teeb meem, cov dej kuj tseem muaj cov roj pov tseg me me, cov roj emulsified, cov khib nyiab khib nyiab, cov quav hauv av thiab lwm qhov chaw organic;
4. Cov khib nyiab pov tseg hauv kuv cov dej feem ntau yog cov organic teeb meem (pulverized thee) thiab cov teeb meem inorganic (pob zeb hmoov), thiab cov thee molecular qauv nyob rau hauv ntau coalialization theem sib txawv heev, thiab tus naj npawb ntawm cov nqi ntawm cov coal particles kuj yog. sib txawv, yog li qhov degree ntawm hydrophilic yog qhov sib txawv heev.90% ntawm cov teeb meem raug tshem tawm yog nruab nrab ntawm lub cev raug tshem tawm thiab lub xeev colloidal, thiab qhov muaj peev xwm nyob nruab nrab ntawm -20 thiab 30 mV. Kev sib nrig sib cais ntawm cov nqi, ua rau cov teeb meem raug tshem tawm hauv kuv cov dej tsis tuaj yeem khom ib txwm muaj.
Mine dej kho tshuab feem ntau siv cov txheej txheem ua ke ntawm coagulation pretreatment txheej txheem + membrane txoj kev kho qhov tob rau kev ntxuav.
Cov txheej txheem xaiv thiab kev sib piv ntawm kuv qhov kev kho dej
Tam sim no, ob lub hom phiaj ntawm kuv cov cuab yeej kho dej kom ua tiav yog: txo cov tshuaj lossis txawm tias tsis muaj tshuaj, cov txheej txheem luv luv thiab txuag thaj av.
Ob lub hom phiaj tag nrho taw tes rau cov khoom siv ceramic ua cov cuab yeej ua ntej rau kuv cov dej.
Daim ntawv thov ntawm ceramic membrane cov khoom nyob rau hauv mine dej kho tau upgraded mus rau lub thib peb tiam ntawm technology, uas yog:
1 Thawj tiam ntawm ceramic membrane mine dej kho tshuab
1.1 Ceramic membrane caij ua los ntawm alumina;
1.2 Txhawm rau txhawm rau txhawm rau tiv thaiv kev ua qias tuaj ntawm daim nyias nyias, lub membrane nto ntws tus nqi ntawm 3m / s ~ 5m / s tau teeb tsa, thiab lub zog hluav taws xob ntawm lub system yog siab, nrog rau 1 ~ 1.5 kW · h ib tuj ntawm dej;
1.3 Tsim flux ntawm ceramic membrane system feem ntau tsim nyob rau hauv 150 ~ 200 LMH, 100m ³ / hr yuav tsum tau 500 ㎡ ntawm qhov chaw membrane;
1.4 Nrog rau cov neeg kho tshuab siab zog ntawm ceramic membrane, nws muaj peev xwm tso tseg txoj kev rov qab ntxuav lub twj tso kua mis backwashing (loj txaus, tsawg nqa), thiab txais yuav lub siab tank tu txoj kev (tsawg txaus, siab nqa) los txhim kho tus nqi rov qab ntawm lub system;
1.5 Membrane Cheebtsam ntawm cov ntim loj, cov khoom siv membrane φ 30 lossis φ40mm, installation thiab disassembly workload loj, tsis yooj yim rau kev txij nkawm;
1.6 Internal siab tube membrane cov ntsiab lus, cov membrane ntsiab nrog txawv ntws channel txoj kab uas hla yuav tsum tau kho raws li cov
suspended teeb meem cov ntsiab lus ntawm cov dej inlet. Qhov siab dua cov khoom raug tshem tawm hauv cov dej tuaj, qhov loj dua cov cuab yeej.
2 tiam thib ob ntawm ceramic membrane mine dej kho tshuab
2.1 Tubular ceramic membrane caij ua los ntawm silicon carbide;
2.2 Tsim flux yog feem ntau tsim nyob rau hauv 200 ~ 300 LMH, 100m ³ / hr ceramic membrane system xav tau 350 ㎡ ntawm thaj chaw membrane;
2.3 Membrane Cheebtsam muaj cov ntim loj thiab φ40mm membrane cov khoom, loj installation thiab disassembly workload, thiab tsis yooj yim rau kev txij nkawm;
2.4 Rau kuv cov dej uas tsis muaj cov teeb meem tshem tawm (TLSS<500ppm), the design of high membrane surface flow rate is cancelled, and dead end filtration is adopted
Nyob rau hauv kev ua haujlwm hom ntawm cov pa tawm tsis sib xws, lub zog noj ntawm daim nyias nyias tuaj yeem txo mus rau {{0}}.06 ~ 0.1 kW · h ;
2.5 Nano-bubble gas ntab yog yuav tsum tau tswj cov ntsiab lus ntawm cov teeb meem tshem tawm hauv cov dej nkag.
Cov ntaub ntawv keeb kwm yav dhau - -txoj kev xaiv thiab kev sib piv ntawm kuv qhov kev kho dej
3 tiam thib peb ntawm ceramic membrane mine dej kho tshuab
3.1 Flat sheet membrane caij ua los ntawm silicon carbide los yog tshiab silicon carbide ceramic core kem membrane;
3.2 Tsim flux feem ntau tsim nyob rau hauv 200 ~ 300 LMH, 100m ³ / hr ceramic membrane system yuav tsum tau 350 ㎡ ntawm qhov chaw membrane;
3.3 Silicon carbide ceramic core kem membrane yog siv rau cov dej tshem tawm cov ntsiab lus<2000ppm; silicon carbide flat sheet membrane tank is used in the case of water suspended content>2000ppm;
3.4 Lub zog noj ntawm daim nyias nyias tuaj yeem txo tau rau 0.06 ~ 0.1 kW · h; 3.5 Tsis xav tau kev kho mob ua ntej kom txo tau cov ntsiab lus tshem tawm.
Cov yam ntxwv ntawm silicon carbide membranes
● Lub silicon carbide membrane yog sintered siv cov txheej txheem recrystallization nrog sintering kub ntawm 2400 degree . Thaum lub sij hawm sintering txheej txheem, lub caj dab sintering nruab nrab ntawm silicon carbide orthopedics undergoes ib theem hloov ntawm cov khoom rau roj mus rau cov khoom, nrog ib tug qhib tus nqi ntawm ntau tshaj 45%. Cov tsim lim channel muaj kev sib txuas muaj zog, thiab ntxiv rau, qhov muaj peev xwm ntawm cov khoom siv silicon carbide (kev sib cuag lub kaum tsuas yog 0.3 degree) ua rau cov dej ntshiab ntws mus txog 3200LMH. Hydrophilic thiab oleophobic.
● Lub isoelectric point ntawm silicon carbide yog nyob ib ncig ntawm pH 3, thiab daim nyias nyias muaj peev xwm tswj tsis tau tus nqi tshaj pH dav, kev txhim kho cov membrane nto tiv thaiv cov pa phem.
● Cov tshuaj lom neeg ruaj khov zoo heev, muaj peev xwm ua haujlwm nyob rau hauv qhov chaw huab cua (pH 1-14 tau txais); Cov kev npaj tu nplua nuj tuaj yeem tsim tau raws li cov yam ntxwv ntawm cov nyiaj tsis huv; Oxidants muaj lub siab ntev, nrog rau ozone thiab hydroxyl radicals.
★ Silicon carbide membrane muaj kev ua haujlwm siab ua haujlwm hauv ib chav tsev membrane
★ Qhov zoo ntawm cov yam ntxwv tiv thaiv kev ua qias tuaj los ntawm qhov tsis zoo nqi ib puag ncig ntawm daim nyias nyias
★ Zoo ntxuav thiab rov tsim dua tshiab
Silicon carbide tiaj daim ntawv membrane thiab cov ntaub ntawv qhia
Silicon carbide flat sheet membrane yog tsim los ntawm sintering high-purity silicon carbide hmoov ntawm qhov kub thiab txias, thiab tam sim no yog cov khoom siv membrane nrog qhov zoo tshaj plaws hydrophilicity thiab tiv thaiv kev ua qias tuaj.
· Cov membrane nto nrog cov nqi tsis zoo tuaj yeem ua kom muaj kuab paug zoo nyob thoob plaws pH ntau yam;
· Cov kev ua haujlwm zoo tshaj plaws - thaum pH ntawm PAC ntxiv yog tsawg dua 6, daim nyias nyias muaj peev xwm tswj tau qhov tsis zoo ntawm -25 ~ -30 millivolts, ua rau nws nyuaj rau cov organic carbon thiab pob tshab txheej txheej polymer. ua raws li daim nyias nyias;
· Nws yog ib qho yooj yim los ntxuav cov khoom tsis zoo los ntawm daim nyias nyias hauv dej, xws li cov kab mob, algae, MLSS, pob tshab txheej txheej polymer, thiab cov khoom siv roj.
Main technical parameters ntawm silicon carbide tiaj daim ntawv membrane Cheebtsam thiab membrane modules
1) Suspended solids concentration
Concentration ntau: 1000 ~ 4000mg / l Nruab nrab concentration: 2335.51mg / l
2) Siv dej turbidity
Concentration ntau: 2000 ~ 8000 NTU Qhov nruab nrab concentration: 6632.82NTU
3) turbidity ntawm lub qhov hluav taws xob dej
Yeej tsawg dua {{0}}.5 NTU, nrog qhov nruab nrab turbidity ntawm 0.2 NTU
Nco tseg: qhov concentration ntawm cov dej paug tuaj yeem hloov pauv tau zoo heev, qhov siab tshaj plaws yog 10850 mg / l (turbidity: 26040 NTU), thiab cov dej ntws zoo tseem zoo, Cov dej turbidity yog 0.168 NTU.
Silicon carbide kem membrane thiab cov ntaub ntawv qhia
1500 tons / hnub zoo siab tiaj daim ntawv membrane & RO system
Cov khoom no yog ib yam khoom tshiab uas rhuav tshem ciam teb ntawm daim ntawv thov scenarios ntawm inorganic thiab organic membranes. Nws muab cov txiaj ntsig zoo ntawm cov khoom lag luam ceramic ua cov khoom ruaj khov thiab ruaj khov, nrog rau kev ua haujlwm siab siab ntawm cov khoom siv membrane. Txoj kev siv zoo ib yam li qhov siab ntawm cov organic membrane kem membranes, uas them nyiaj rau cov kev xav tau siab rau cov dej hauv dej zoo, kev siv dej rov qab siab, thiab kev pheej hmoo ntawm cov hlau tawg hauv ultrafiltration membrane technology. Nws tuaj yeem txhim kho cov dej tawm los ntawm cov tshuab ultrafiltration thiab txo cov nqi tshuaj ntxuav.
Lub silicon carbide cylindrical ceramic membrane yog tsim los ntawm ntau yam khoom siv hauv silicon carbide ceramic lim cartridges spliced ua ke. Cov qauv tsim tshwj xeeb ua rau cov khoom siv hydraulic ntawm cov dej ntau lawm thiab rov qab ua haujlwm ntawm txhua lub tubular daim nyias nyias, thiab cov nyhuv rov qab rov qab yog qhov zoo heev.
Khoom nta thiab qhov zoo
Cov khoom siv tseem ceeb silicon carbide yog cov khoom siv zoo tshaj plaws thiab zoo tshaj plaws ceramic membrane piv rau alumina, nrog zoo hydrophilicity, siab porosity, zoo heev tu thiab rov qab muaj peev xwm, thiab tsis muaj kev ntshai ntawm cov roj paug;
★ Lub zog txhua yam tsis muaj kev pheej hmoo ntawm cov hlau tawg, zoo heev hnav tsis kam thiab cuam tshuam tsis kam, dej ruaj khov thaum lub sijhawm ua haujlwm ntev;
★ Kev ua haujlwm zoo los tiv thaiv kev ua qias tuaj, tiv taus cov dej hloov pauv, thiab kev ua haujlwm ruaj khov mus ntev;
★ Zoo tshuaj lom neeg ruaj khov, acid thiab alkali tsis kam, muaj zog oxidant tsis kam, kub tsis kam, organic hnyav tsis kam, ntxuav tsis kam, thiab yooj yim rov qab flux tom qab ntxuav;
★ High filtration raug (txog 20nm) tuaj yeem tshem tawm cov pa phem xws li cov khoom, colloids, microorganisms, thiab organic teeb meem los ntawm dej;
★ Lub kaw lus muaj qhov yuav tsum tau ua ua ntej qis, uas txo qis tag nrho cov peev txheej thiab cov nqi khiav haujlwm ntawm lub kaw lus;
★ Kev teeb tsa ntsug, qauv tsim thiab qauv tsim, ua kom yooj yim rau cov kav dej;
★ Cov nqi sib tw peev thiab lub neej zoo heev;
★ Tau tshaj cov tsoos organic membrane ultrafiltration tshuab.
500 tons / teev mine dej silicon carbide ceramic core kem membrane system
Inflow TLSS =50-2000ppm
Cov dej ntau lawm TLSS ＜ 1ppm, turbidity ＜ 0.2NTU