litaba

1. Tlhaloso ea Sehlahisoa
Kgutsufatso ya Polyacrylamide (amide)
polyacrylamide (PAM)
Likaroloana tse tšoeu tse hloekileng
Polyacrylamide, e bitsoang PAM, e arotsoe ka anionic (APAM), cationic (CPAM), le nonionic (NPAM). Ke polymer e melang le e 'ngoe ea mefuta e sebelisoang haholo ea metsoako ea polymer e qhibilihang ka metsing. Polyacrylamide le derivatives eona e ka sebelisoa e le flocculants atlehang, thickeners, matlafatso pampiri le mokelikeli hula mahlahana a fokotsang, joalo-joalo, 'me ho pharaletseng sebelisoa ka ho phekola metsi, papermaking, peterole, mashala, meepo le metallurgy, jeoloji, masela, kaho, joalo-joalo. lefapha la indasteri.

3. Litlhokomelo tsa ho khetha lihlahisoa tsa polyacrylamide:
① Khetho ea flocculant e shebisisa ka botlalo ts'ebetso le litlhoko tsa lisebelisoa.

②Matla a floc a ka eketsoa ka ho eketsa boima ba molek'hule ea flocculant.

③Boleng ba tefiso ea flocculant bo hlahlojoa ka liteko.

④Phetoho ea boemo ba leholimo (mocheso) e ama khetho ea flocculant.

⑤Khetha boima ba limolek'hule tsa flocculant ho ea ka boholo ba floc e hlokehang ke mokhoa oa phekolo.

⑥ Kopanya flocculant le sludge hantle pele ho kalafo.
4. Litšobotsi tsa ts'ebetso:

1. Molek'hule oa polyacrylamide o na le liphatsa tsa lefutso tse ntle, bokhoni bo matla ba flocculation, tekanyo e tlaase, le phello e hlakileng ea phekolo.

2. E na le solubility e ntle le mosebetsi o phahameng. Lipalesa tsa alum tse entsoeng ke condensation 'meleng oa metsi li kholo' me li lula kapele. E na le matla a ho hloekisa ka makhetlo a 2-3 ho feta li-polymer tse ling tse qhibilihang ka metsing.

3. Ho ikamahanya le maemo ho matla le tšusumetso e nyane ho boleng ba pH le mocheso oa 'mele oa metsi. Ka mor'a ho hloekisoa ha metsi a tala, a fihla boemong ba naha ea ts'ebeliso ea metsi. Ka mor'a ho phekoloa, likaroloana tse emisitsoeng ka metsing li finyella morero oa ho phalla le ho hlakisoa, e leng se loketseng phekolo ea phapanyetsano ea ion le ho lokisetsa metsi a hloekileng.

4. Ha e senyehe ebile e bonolo ho sebetsa, e ka ntlafatsang matla a mosebetsi le maemo a ts'ebetso ea ts'ebetso ea dosing.

5. Sebaka sa kopo ea Polyacrylamide

Molek'hule ea polyacrylamide e na le gene e ntle (-CONH2), e ka adsorb le ho koala likaroloana tse emisitsoeng tse qhalakantsoeng tharollong. E na le phello e matla ea flocculation. E ka potlakisa ho rarolloa ha likaroloana ho emisoa, 'me e na le ho potlakisa ho hlakileng haholo ha tharollo. E ka hlakisa le ho khothaletsa filtration, kahoo e sebelisoa haholo ho hloekisa metsi, matla a motlakase, merafo, ho lokisetsa mashala, lihlahisoa tsa asbestos, indasteri ea petrochemical, papermaking, textile, ho hloekisa tsoekere, meriana, tšireletso ea tikoloho, joalo-joalo.
1. Joaloka flocculant, e sebelisoa haholo-holo mekhoeng ea karohano ea metsi a thata-liindasteri, ho kenyelletsa le sedimentation, ho hlakisoa, mahloriso le ho felloa ke metsi ka har'a sludge. Liindasteri tse ka sehloohong tse sebelisoang ke: ho hloekisa likhoerekhoere tsa litoropo, indasteri ea pampiri, indasteri ea ho lokisa lijo, indasteri ea petrochemical, Phekolo ea metsi a litšila indastering ea metallurgic, indasteri ea ho lokisa liminerale, indasteri ea ho daea, indasteri ea tsoekere le liindasteri tse fapaneng. E sebelisoa bakeng sa sedimentation ea sludge le dehydration ea sludge therapy ea likhoerekhoere tsa litoropong le nama, likhoho le metsi a litšila a ho lokisa lijo. Lihlopha tse nang le qoso e ntle e nang le motlakase li fokotsa li-colloids tse nang le qoso e mpe ka har'a seretse le Ts'ebetso ea borokho le momahano ea li-polymers e khothaletsa likaroloana tsa colloidal hore li kopane ho li-flocs tse kholo le ho arohana le ho emisoa ha tsona. Phello e totobetse 'me tekanyo e nyenyane.
2. Lefapheng la pampiri, e ka sebelisoa e le moemeli oa matla a omileng a pampiri, thuso ea ho boloka le thuso ea filthara, e ka ntlafatsang boleng ba pampiri, ho boloka litšenyehelo le ho eketsa matla a tlhahiso ea lihlahisoa tsa pampiri. E ka theha marokho a motlakase ka kotloloho a nang le li-ion tsa letsoai, likhoele le li-polymers tse ling tsa organic ho matlafatsa matla a pampiri, ho fokotsa tahlehelo ea likhoele kapa li-filters, ho potlakisa tlhoekiso ea metsi, le ho bapala karolo ea ho matlafatsa, ho boloka le ho thusa ho hloekisa. E ka boela ea sebelisoa bakeng sa phekolo ea metsi a White, ka nako e ts'oanang, e ka ba le phello e hlakileng ea flocculation nakong ea ts'ebetso ea deinking.
3. Fiber slurry (lihlahisoa tsa asbestos-samente) e ka ntlafatsa drainage ea lihlahisoa tse entsoeng ka asbestos-samente le ho eketsa matla a likheo tsa boto ea asbestos; ka mapolanka a ho kenya letsoho, e ka ntlafatsa bokhoni bo tlamang ba li-additives le likhoele.
4. E ka sebelisoa e le tlhakiso bakeng sa metsi a litšila a merafong le metsi a litšila a hlatsoang mashala liindastering tsa merafo le tsa ho lokisa mashala.
5. E ka sebelisoa ho phekola metsi a litšila a daeang, metsi a litšila a letlalo, le metsi a litšila a mafura ho tlosa moferefere le ho a senya ho finyella litekanyetso tsa ho ntša metsi.
6. Ho hloekisoa ha phosphoric acid, ho thusa ho arola gypsum ka mokhoa oa metsi oa phosphoric acid.
7. E sebelisoa e le flocculant ea ho hloekisa metsi limeleng tsa metsi tse nang le mohloli oa metsi a noka.
6. Mekhoa ea tšebeliso le litemoso:
1. Sebelisa metsi a sa jeleng paate, a se nang letsoai ho lokisa tharollo e nang le metsi a nang le motsoako oa 0.2%.
2. Kaha sehlahisoa sena se loketse mefuta e mengata ea pH ea metsi, tekanyo e tloaelehileng ke 0.1-10ppm (0.1-10mg / L).
3. E qhibilihisitsoe ka ho feletseng. Ha o qhibiliha, hlohlelletsa metsi ka botlalo 'me u kenye phofo ea moriana butle-butle le ka ho lekana ho thibela ho thibela lipeipi le lipompo tse bakoang ke ho phalla ho hoholo le mahlo a litlhapi.
4. Lebelo la ho kopanya ka kakaretso ke 200 rpm mme nako ha e ka tlase ho metsotso ea 60. Ho eketsa mocheso oa metsi ka likhato tse 20-30 tsa Celsius ho ka potlakisa ho qhibiliha. Mocheso o phahameng oa moriana oa metsi o lokela ho ba ka tlase ho likhato tse 60.
5. Etsa qeto ea hore na tekanyo e nepahetseng ke efe. Etsa qeto ea tekanyo e nepahetseng ka liteko pele u sebelisoa. Hobane tekanyo e tlase haholo, e ke ke ea sebetsa, 'me haeba tekanyo e phahame haholo, e tla ba le phello e fapaneng. Ha e feta mahloriso a itseng, PAM ha e phalle feela, empa e qhalakanngoa le ho sebelisoa ka mokhoa o tsitsitseng.
6. Sehlahisoa sena se lokela ho bolokoa sebakeng se pholileng, se omileng ho thibela mongobo.
7. Sebaka sa mosebetsi se lokela ho hlatsuoa ka metsi khafetsa ho se boloka se hloekile. Ka lebaka la viscosity ea eona e phahameng, PAM e hasaneng ka tlas'a lefatše e ba boreleli ha e le metsing, e thibelang ba sebetsang ho thella le ho baka likotsi tsa polokeho.
8. Sehlahisoa sena se kenngoa ka mekotla ea polasetiki 'me lesela le ka ntle le entsoe ka mekotla e lohiloeng ka polasetiki, mokotla o mong le o mong ke 25Kg.
7. Lintho tsa 'mele le litšobotsi tsa tšebeliso
1. Lintho tsa 'mele: Foromo ea molek'hule (CH2CHCONH2)r
PAM ke polymer e nang le mela. E qhibiliha ha bonolo ka metsing, 'me e batla e sa qhibilihe ka har'a benzene, ethylbenzene, esters, acetone le lihlapolli tse ling tsa tlhaho. Tharollo ea eona ea metsi ke mokelikeli oa viscous o batlang o bonaletsa 'me ke sehlahisoa se seng kotsi. PAM e sa senyeheng, e tiileng ke hygroscopic, 'me hygroscopicity e eketseha ka ho eketseha ha ionicity. PAM e na le botsitso bo botle ba mocheso; e na le botsitso bo botle ha e futhumala ho 100 ° C, empa e senyeha habonolo ho hlahisa khase ea nitrogen ha e futhumala ho 150 ° C kapa ho feta. E entsoe ka imidization 'me ha e qhibilihe ka metsing. Boima ba 'mele (g) ml 23°C 1.302. Mocheso oa phetoho ea khalase ke 153°C. PAM e bonts'a metsi a seng a Newtonian tlas'a khatello ea maikutlo.
2. Litšobotsi tsa tšebeliso
Flocculation: PAM e ka fokotsa lintho tse emisitsoeng ka motlakase, borokho adsorption, le ho etsa flocculation.
Adhesion: E ka sebetsa e le sekhomaretsi ka litlamorao tsa mochini, tsa 'mele le tsa lik'hemik'hale.
Phokotso ea ho hanyetsa: PAM e ka fokotsa ka katleho ho hanyetsa ho ferekanngoa ha metsi. Ho eketsa palo e nyane ea PAM metsing ho ka fokotsa khanyetso ea likhohlano ka 50-80%.
Thickening: PAM e na le phello e teteaneng tlas'a maemo a mabeli a sa nke lehlakore le a acidic. Ha boleng ba pH bo ka holimo ho 10 ° C, PAM e na le hydrolyzed habonolo 'me e na le sebopeho sa semi-reticular,' me ho teteana ho tla bonahala haholoanyane.
8. Synthesis le mokhoa oa polyacrylamide PAM
9. Litlhokomelo tsa ho paka le ho boloka:
Bakeng sa sehlahisoa sena, etsa bonnete ba hore u se sireletsa mongobo, pula le khanya ea letsatsi.
Nako ea polokelo: lilemo tse 2, mokotla oa pampiri oa 25kg (mokotla oa polasetiki o kentsoeng ka mokotla oa pampiri oa kraft kantle).