Lik'hemik'hale tsa Phekolo ea Metsi ea Polyacrylamide
Polyacrylamide (PAM) ke lentsoe le akaretsang bakeng sa acrylamide homopolymer kapa copolymerized le monomers tse ling, 'me ke e' ngoe ea mefuta e sebelisoang haholo ea li-polymer tse qhibilihang ka metsing.Hobane yuniti ea meralo ea polyacrylamide e na le lihlopha tsa amide, ho bonolo ho theha litlamo tsa haedrojene, e etsang hore e be le solubility e ntle ea metsi le ts'ebetso e phahameng ea lik'hemik'hale, 'me ho bonolo ho fumana liphetoho tse fapaneng tsa ketane ea lekala kapa sebopeho sa marang-rang ka ho hlophisoa kapa ho kopanya., E sebelisoa haholo ho hlahloba peterole, phekolo ea metsi, masela, ho etsa pampiri, ho sebetsa ka liminerale, meriana, temo le liindasteri tse ling, 'me e tsejoa e le "bathusi ba liindasteri tsohle".Libaka tse ka sehloohong tsa kopo linaheng tse ling ke ho hloekisa metsi, ho etsa pampiri, merafo, metallurgy, joalo-joalo;Chaena, palo e kholo ka ho fetisisa e sebelisoa hona joale tšimong ea ho ntšoa ha oli, 'me masimo a hōlang ka potlako a masimong a ho hloekisa metsi le ho etsa pampiri.
Sebaka sa ho hloekisa metsi:
Ho hloekisa metsi ho kenyelletsa ho hloekisa metsi a tala, ho hloekisa likhoerekhoere le ho hloekisa metsi a indasteri.E sebelisoa hammoho le khabone e kentsoeng kalafong ea metsi a tala, e ka sebelisoa bakeng sa ho kopanya le ho hlakisa likaroloana tse emisitsoeng metsing a lapeng.Tšebeliso ea manyolo flocculant acrylamide sebakeng sa inorganic flocculant ka eketsa matla a ho hloekisa metsi ka ho feta 20% esita le ntle le ho fetola ho rarolla tanka;kalafong ea likhoerekhoere, tšebeliso ea polyacrylamide e ka eketsa sekhahla sa ts'ebeliso ea phepelo ea metsi hape e ka sebelisoa joalo ka dewatering ea Sludge;e sebelisoang e le moemeli oa bohlokoa oa ho etsa tlhahiso ea metsi a indasteri.Tšimo e kholo ka ho fetisisa ea ts'ebeliso ea polyacrylamide kantle ho naha ke kalafo ea metsi, mme ts'ebeliso ea ts'ebetso ena Chaena e ntse e khothaletsoa.Karolo e ka sehloohong ea polyacrylamide kalafo ea metsi: [2]
(1) Fokotsa palo ea flocculant.Tlas'a motheo oa ho finyella boleng bo tšoanang ba metsi, polyacrylamide e sebelisoa e le thuso ea coagulant hammoho le li-flocculants tse ling, tse ka fokotsang haholo palo ea flocculant e sebelisoang;(2) Ntlafatsa boleng ba metsi.Ha ho phekoloa metsi a nooang le phekolo ea metsi a litšila a indasteri, tšebeliso ea polyacrylamide hammoho le li-flocculants tse sa tloaelehang li ka ntlafatsa boleng ba metsi haholo;(3) Eketsa matla a floc le lebelo la sedimentation.Li-flocs tse entsoeng ke polyacrylamide li na le matla a phahameng le ts'ebetso e ntle ea sedimentation, kahoo li eketsa lebelo la karohano ea metsi a tiileng le ho thusa ho felloa ke metsi 'meleng;(4) Anti-corrosion le anti-scaling ea tsamaiso ea ho pholisa e potolohang.Tšebeliso ea polyacrylamide e ka fokotsa haholo palo ea li-flocculants, ka tsela eo, ho qoba ho behoa ha lintho tse sa tloaelehang holim'a lisebelisoa le ho fokotsa ho bola le ho eketsa lisebelisoa.
Polyacrylamide e sebelisoa ho pharaletseng e le thuso ea ho boloka, thuso ea filthara, moemeli oa ho lekanya, joalo-joalo tšimong ea ho etsa pampiri ho ntlafatsa boleng ba pampiri, ts'ebetso ea slurry dehydration, tekanyo ea ho boloka likhoele tse ntle le li-fillers, ho fokotsa tšebeliso ea thepa e tala le tšilafalo ea tikoloho, E sebelisoa e le dispersant ho. ntlafatsa ho tšoana ha pampiri.Polyacrylamide e sebelisoa haholo-holo likarolong tse peli tsa indasteri ea pampiri.E 'ngoe ke ho eketsa sekhahla sa ho boloka li-filler le li-pigments ho fokotsa tahlehelo ea thepa e tala le tšilafalo ea tikoloho;e 'ngoe ke ho eketsa matla a pampiri.Ho eketsa polyacrylamide ho thepa ea pampiri ho ka eketsa sekhahla sa ho boloka likhoele tse ntle le likaroloana tsa ho tlatsa marang-rang le ho potlakisa ho felloa ke metsi 'meleng oa thepa ea pampiri.Mochini oa ketso ea polyacrylamide ke hore likaroloana tsa slurry li flocculated 'me li bolokoa holim'a lesela la filthara ka neutralization kapa borokho.Ho thehoa ha li-flocs ho ka boela ha etsa hore metsi a slurry a be bonolo ho sefa, ho fokotsa tahlehelo ea likhoele metsing a masoeu, ho fokotsa tšilafalo ea tikoloho, le ho thusa ho ntlafatsa ts'ebetso ea lisebelisoa tsa ho hloekisa le ho theola sedimentation.