xov xwm

1. Cov Khoom Muag Khoom
Lub npe Polyacrylamide (amide)
Polyacrylamide (PAM)
Ntshiab dawb hais
Polyacrylamide, hu ua PAM, muab faib ua anionic (APAM), cationic (CPAM), thiab nonionic (NPAM). Nws yog ib qho linear polymer thiab ib qho ntawm ntau hom kev siv dej-soluble polymer compounds. Polyacrylamide thiab nws cov derivatives yuav siv tau raws li zoo flocculants, thickeners, ntawv enhancers thiab cov kua cab txo cov neeg ua hauj lwm, thiab yog dav siv nyob rau hauv dej kho mob, papermaking, roj av, thee, mining thiab metallurgy, geology, textiles, kev tsim kho, thiab lwm yam. kev lag luam sector.

3. Kev ceev faj rau kev xaiv cov khoom siv polyacrylamide:
① Kev xaiv ntawm flocculant yuav tsum xav txog tag nrho cov txheej txheem thiab cov khoom siv.

② Lub zog ntawm floc tuaj yeem nce ntxiv los ntawm kev nce qhov hnyav molecular ntawm flocculant.

③ Tus nqi nqi ntawm flocculant yog kuaj los ntawm kev sim.

④ Kev hloov pauv huab cua (kub) cuam tshuam rau kev xaiv flocculant.

⑤ Xaiv qhov hnyav molecular ntawm flocculant raws li floc loj xav tau los ntawm cov txheej txheem kho.

⑥ Sib tov cov flocculant thiab sludge kom huv si ua ntej kho.
4. Cov yam ntxwv ua haujlwm:

1. Lub polyacrylamide molecule muaj cov noob zoo, muaj zog flocculation muaj peev xwm, tsawg npaum li cas, thiab pom tseeb cov nyhuv.

2. Nws muaj solubility zoo thiab ua haujlwm siab. Cov paj alum tsim los ntawm condensation nyob rau hauv lub cev dej yog loj thiab nyob twj ywm sai. Nws muaj peev xwm purification 2-3 zaug ntau dua li lwm cov dej-soluble polymers.

3. Muaj zog adaptability thiab me ntsis cuam tshuam rau tus nqi pH thiab kub ntawm lub cev dej. Tom qab purification ntawm cov dej nyoos, nws mus txog lub teb chaws tus qauv siv dej. Tom qab kev kho mob, cov khoom raug tshem tawm hauv cov dej ua tiav lub hom phiaj ntawm flocculation thiab clarification, uas yog qhov tsim nyog rau ion txauv kev kho mob thiab kev npaj cov dej purity siab.

4. Nws tsis tshua muaj corrosive thiab yooj yim rau kev khiav lag luam, uas tuaj yeem txhim kho kev siv zog thiab kev ua haujlwm ntawm cov txheej txheem dosing.

5. Daim ntawv thov ntawm polyacrylamide

Lub polyacrylamide molecule muaj cov noob zoo (-CONH2), uas tuaj yeem nqus tau thiab txuas txuas txuas cov khoom tawg tawm hauv cov tshuaj. Nws muaj zog flocculation nyhuv. Nws tuaj yeem ua kom qhov kev sib haum xeeb ntawm cov khoom hauv qhov raug ncua, thiab muaj qhov nrawm nrawm ntawm cov tshuaj. Nws tuaj yeem nthuav dav thiab txhawb kev pom, yog li nws tau dav siv hauv kev kho dej, hluav taws xob, mining, thee npaj, asbestos khoom, petrochemical kev lag luam, papermaking, textile, qab zib refining, tshuaj, kev tiv thaiv ib puag ncig, thiab lwm yam.
1. Raws li ib tug flocculant, nws yog tsuas yog siv nyob rau hauv industrial solid-kua sib cais txheej txheem, xws li sedimentation, clarification, concentration thiab sludge lub cev qhuav dej. Cov kev lag luam tseem ceeb siv yog: kev kho dej hauv nroog, kev lag luam ntawv, kev lag luam ua zaub mov, kev lag luam petrochemical, kev kho dej khib nyiab hauv kev lag luam metallurgical, kev lag luam ntxhia, kev lag luam dyeing, kev lag luam qab zib thiab ntau yam kev lag luam. Nws yog siv rau sludge sedimentation thiab sludge lub cev qhuav dej hauv kev kho cov dej phwj hauv nroog thiab cov nqaij, nqaij qaib, thiab cov khoom noj khoom haus. Cov pab pawg tau txais txiaj ntsig zoo nws muaj cov hluav taws xob tsis zoo rau qhov tsis zoo ntawm cov organic colloids hauv cov sludge thiab Kev sib txuas thiab kev sib koom ua ke ntawm cov polymers txhawb cov colloidal hais kom sib sau ua ke loj flocs thiab cais tawm ntawm lawv qhov kev ncua. Cov nyhuv yog pom tseeb thiab cov koob tshuaj me me.
2. Hauv kev lag luam ntawv, nws tuaj yeem siv los ua daim ntawv qhuav lub zog tus neeg sawv cev, kev tuav pov hwm thiab kev lim dej, uas tuaj yeem txhim kho daim ntawv zoo, txuag nqi thiab ua kom muaj peev xwm ntau lawm ntawm cov ntawv zeb. Nws tuaj yeem tsim cov txuas hluav taws xob ncaj qha nrog cov ntsev inorganic ions, fibers thiab lwm cov organic polymers los txhim kho lub cev lub zog ntawm daim ntawv, txo qhov poob ntawm fibers los yog muab tub lim, ua kom cov dej pom, thiab ua lub luag haujlwm ntawm kev txhawb nqa, tuav thiab pom kev pab. Nws kuj tseem tuaj yeem siv rau kev kho dej dawb, tib lub sijhawm, tuaj yeem muaj cov nyhuv flocculation pom tseeb thaum lub sijhawm deinking.
3. Fiber slurry (asbestos-cement khoom) tuaj yeem txhim kho cov kua dej ntawm cov khoom tsim asbestos-cement thiab ua kom lub zog ntawm asbestos board blanks; nyob rau hauv rwb thaiv tsev boards, nws muaj peev xwm txhim kho txoj kev khi peev xwm ntawm additives thiab fibers.
4. Nws tuaj yeem siv los ua cov lus qhia meej rau kuv cov dej khib nyiab thiab cov thee ntxuav cov dej khib nyiab hauv cov mining thiab thee npaj kev lag luam.
5. Nws tuaj yeem siv los kho cov dej khib nyiab, cov dej khib nyiab tawv, thiab cov dej khib nyiab oily kom tshem tawm cov turbidity thiab decolorize lawv kom ua tau raws li cov qauv tso tawm.
6. Nyob rau hauv phosphoric acid purification, nws pab cais gypsum nyob rau hauv ntub phosphoric acid txheej txheem.
7. Siv raws li kev kho dej flocculant hauv cov nroj tsuag dej nrog dej ntws.
6. Txoj kev siv thiab ceev faj:
1. Siv cov dej nruab nrab, tsis muaj ntsev los npaj cov tshuaj aqueous nrog qhov concentration ntawm 0.2%.
2. Txij li cov khoom no tsim nyog rau ntau yam dej pH qhov tseem ceeb, qhov dav dav npaum li cas yog 0.1-10ppm (0.1-10mg / L).
3. Ua kom tiav. Thaum yaj, do cov dej kom huv si thiab tom qab ntawd ntxiv cov hmoov tshuaj maj mam thiab sib npaug kom tsis txhob txhaws cov kav dej thiab cov twj tso kua mis los ntawm qhov loj flocculation thiab ntses qhov muag.
4. Qhov sib tov ceev yog feem ntau 200 rpm thiab lub sijhawm tsis pub tsawg tshaj 60 feeb. Tsim nyog nce dej kub los ntawm 20-30 degrees Celsius tuaj yeem ua kom nrawm nrawm. Qhov kub siab tshaj plaws ntawm cov tshuaj ua kua yuav tsum tsawg dua 60 degrees.
5. Txiav txim siab qhov zoo tshaj plaws npaum li cas. Txiav txim siab npaum li cas los ntawm kev sim ua ntej siv. Vim tias qhov ntau npaum li cas qis, nws yuav tsis ua haujlwm, thiab yog tias qhov ntau npaum li cas, nws yuav muaj qhov cuam tshuam. Thaum nws tshaj ib qho concentration, PAM tsis tsuas yog tsis flocculate, tab sis yog dispersed thiab siv stably.
6. Cov khoom no yuav tsum tau muab cia rau hauv qhov chaw txias, qhuav kom tsis txhob ya raws.
7. Lub chaw ua haujlwm yuav tsum tau yaug nrog dej ntau zaus kom huv si. Vim tias nws cov viscosity siab, PAM tawg nyob rau hauv av yuav du thaum raug dej, tiv thaiv cov neeg ua haujlwm tsis txhob ntog thiab ua rau muaj kev nyab xeeb.
8. Cov khoom no yog lined nrog cov hnab yas thiab txheej txheej yog ua los ntawm cov hnab yas laminated, txhua lub hnab yog 25Kg.
7. Lub cev muaj zog thiab kev siv yam ntxwv
1. Lub cev muaj zog: Molecular formula (CH2CHCONH2)r
PAM yog linear polymer. Nws yog yooj yim soluble nyob rau hauv dej thiab yuav luag insoluble nyob rau hauv benzene, ethylbenzene, esters, acetone thiab lwm yam organic solvents. Nws cov tshuaj aqueous yog cov kua nplaum uas yuav luag pob tshab thiab yog cov khoom tsis txaus ntshai. Non-corrosive, khoom PAM yog hygroscopic, thiab hygroscopicity nce nrog nce ionicity. PAM muaj thermal stability zoo; Nws muaj kev ruaj ntseg zoo thaum rhuab mus rau 100 ° C, tab sis nws yooj yim decomposes los tsim cov roj nitrogen thaum rhuab mus rau 150 ° C lossis siab dua. Nws undergoes imidization thiab yog insoluble nyob rau hauv dej. Qhov ntom ntom (g) ml 23 ° C 1.302. Cov iav hloov pauv kub yog 153 ° C. PAM nthuav tawm tsis yog-Newtonian fluidity nyob rau hauv kev ntxhov siab.
2. Cov yam ntxwv ntawm kev siv
Flocculation: PAM tuaj yeem cuam tshuam cov tshuaj raug tshem tawm los ntawm hluav taws xob, txuas txuas ntxiv, thiab ua haujlwm flocculation.
Adhesion: Nws tuaj yeem ua raws li cov nplaum los ntawm kev siv tshuab, lub cev thiab tshuaj lom neeg.
Kev txo qis: PAM tuaj yeem txo qhov kev sib txhuam ntawm cov kua dej zoo. Ntxiv ib qho me me ntawm PAM rau dej tuaj yeem txo qhov kev sib txhuam los ntawm 50-80%.
Thickening: PAM muaj cov nyhuv thickening nyob rau hauv ob qho tib si nruab nrab thiab acidic. Thaum pH tus nqi siab tshaj 10 ° C, PAM yog yooj yim hydrolyzed thiab muaj ib tug semi-reticular qauv, thiab cov thickening yuav pom tseeb dua.
8. Synthesis thiab txheej txheem ntawm polyacrylamide PAM
9. Ntim thiab khaws cia ceev faj:
Rau cov khoom no, nco ntsoov tiv thaiv nws los ntawm noo noo, nag, thiab tshav ntuj.
Lub sij hawm cia: 2 xyoos, 25kg ntawv hnab (lub hnab yas lined nrog yas kraft ntawv hnab sab nraum).