PAC Flocculantyog cov tshuaj uas muaj kev ua tau zoo heev, uas yog siv dav hauv kev kho dej, xws li kev kho dej haus, kev lag luam ntawv, kev kho dej khib nyiab thiab lwm yam. Koj puas paub tias PAC tau txais li cas? Hauv tsab xov xwm no, peb yuav tham txog qhov teeb meem no.
Rau kev thov PAC, xa mus rau:Poly Aluminium Chloride: Ib qho kev xaiv zoo rau kev kho dej
Polyaluminium Chloride, tseem hu ua PAC, yog ib qho tseem ceeb inorganic polymer flocculant. Nws cov khoom siv raw yog dav thiab muaj ntau haiv neeg, feem ntau suav nrog cov khoom siv txhuas-cov kabmob thiab cov khoom pov tseg. Cov hauv qab no yog cov lus piav qhia ntxaws txog cov peev txheej ntawm ob hom khoom siv raw:
Aluminium-cov khoom muaj nqis
Aluminium-cov kabmob yog ib qho ntawm cov khoom siv tseem ceeb rau PAC ntau lawm, thiab cov zaub mov no yog nplua nuj nyob hauv txhuas, uas tuaj yeem hloov mus rau hauv PAC los ntawm kev kho cov txheej txheem. Feem ntau cov khoom siv txhuas-cov kabmob muaj xws li:
- Bauxite:Qhov no yog lub ntiaj teb zoo li cov ntxhia uas muaj txhuas hydrate, cov zaub mov tseem ceeb uas yog gibbsite, boehmite, diaspore lossis sib xyaw ntawm cov hydrates, thiab yog ib qho tseem ceeb raw khoom rau PAC ntau lawm.
| Tshuaj | Kev faib tawm hauv Suav teb | Feature |
| Gibbsite | Fujian, Hainan Island, Taiwan | Txoj kev yog tus cwj pwm los ntawm kev khiav luv luv thiab kev siv hluav taws xob tsawg |
| Boehmite | Guangyuan nroog, Sichuan | Nws yog ib qho zoo heev raw khoom rau zus tau tej cov PAC thiab txhuas sulfate |
| Diaspore | Nthuav dav | Vim nws cov txheej txheem nyuaj, nws tsis tuaj yeem siv ncaj qha rau PAC ntau lawm tam sim no. Nws yog tsuas yog siv nyob rau hauv zus tau tej cov alumina, cement thiab refractory ntaub ntawv |
- av nplaum thiab kaolin:av nplaum thiab kaolin deposits muaj ntau nyob rau hauv yuav luag tag nrho cov ntawm Tuam Tshoj. Av nplaum thiab kaolin feem ntau muaj tsawg dua 80% alumina dissolution tus nqi tom qab ci hauv cov kua qaub, txawm hais tias cov ntsiab lus alumina tsis siab, nws tseem yog cov khoom siv raw zoo rau kev tsim PAC.
- Alunite:Muaj kev nplua nuj alunite hauv Suav teb, xws li hauv Zhejiang, Anhui, Fujian thiab lwm qhov chaw. Alunite yog cov ntxhia nrog cov nqi siv siab, uas tuaj yeem ua rau hauv PAC thaum rho tawm alumina, sulfuric acid thiab potassium ntsev.
- Nepheline:Cov ntsiab lus Al2O3 ntawm nepheline yog li 30%. PAC tuaj yeem tsim los ntawm txoj kev sintering, thiab nws cov khoom lag luam yog soda tshauv lossis potassium alkali.
- Lwm yam khoom muaj aluminium:Artificially tsim cov khoom siv raw cov ntaub ntawv tseem yog ib qho ntawm PAC, suav nrog txhuas hydroxide thiab calcium aluminate. Aluminium hydroxide yog npaj los ntawm bauxite los ntawm Bayer txheej txheem los yog sintering txheej txheem. Thaum lub sij hawm, cov txheej txheem ntawm calcium aluminate hmoov yog tsuas yog ua los ntawm high bauxite thiab limestone tom qab crushing thiab ziab, pob sib tsoo, thiab sintering nyob rau hauv qhov kev txiav txim ntawm kub kub nyob rau hauv rotary kiln. Aluminium hydroxide thiab calcium aluminate nrog purity siab yog siv los tsim PAC rau kev kho dej haus thiab siv tshuaj txhua hnub.
Kev lag luam pov tseg
Kev siv cov khoom pov tseg ua cov khoom siv raw rau PAC tsis yog tsuas yog paub txog kev rov ua dua tshiab ntawm cov peev txheej, tab sis kuj txo cov pa phem ib puag ncig. Common raw khoom rau industrial pov tseg muaj xws li:
-Aluminium hmoov:Aluminium tshauv yog cov slag tsim thaum electrolytic aluminium, aluminium thiab aluminium alloys yaj thiab aluminium seem yog refined thiab zoo. Ntawm lawv, aluminium tshauv tsim los ntawm kev lag luam ntshiab txhuas yog ntshiab txhuas tshauv, thiab cov ntsiab lus ntawm lwm cov hlau yog me me, uas yog cov khoom siv tseem ceeb rau PAC ntau lawm. Cov hmoov tshauv txhuas uas ua los ntawm txhuas alloy uas muaj me me ntawm beryllium yuav tsum raug txwv vim tias nws muaj toxicity siab.
- Coal gangue thiab flyash:Coal gangue yog cov pov tseg los ntawm cov txheej txheem thee mining, thiab flyash yog lub ember ntawm cov thee uas muaj cov ntxhia hauv txhuas. Cov ntsiab lus ntawm Al2O3 nyob rau hauv ob qho tib si sib txawv nrog lub hauv paus ntawm mine, feem ntau ntawm 10% -30%. Cov ntsiab lus Al2O3 ntawm thee gangue clinker hauv qee thaj chaw yog ntau dua 40%, uas yog tsim rau kev siv dav dav los tsim PAC.
- Ntxiv rau, muaj ntau qhov chaw ntawm PAC ntau lawm, xws li alumina pov tseg los ntawm aluminium oxide nroj tsuag thiab electrolytic aluminium nroj tsuag, tshuaj metallurgical khoom, txhuas trichloride thiab txhuas sulfate.
Nws yuav tsum raug sau tseg tias kev lag luam pov tseg tsuas yog siv los tsim cov qib PAC, tsuas yog siv rau kev kho dej khib nyiab.
Nws tuaj yeem pom tias cov khoom siv raw ntawm PAC tau dav thiab muaj ntau haiv neeg, suav nrog cov peev txheej ntuj xws li bauxite, av nplaum, kaolin, alunite thiab nepheline, nrog rau cov khoom siv khib nyiab xws li txhuas tshauv, coal gangue thiab flyash. Kev siv tag nrho ntawm cov khoom siv raw no tsis tsuas yog txo cov nqi tsim khoom, tab sis kuj paub txog kev rov ua dua tshiab ntawm cov peev txheej thiab kev tiv thaiv ib puag ncig. Yog tias koj txaus siab rau polyaluminium chloride, thov koj xav tiv tauj peb.