Boima ba Bentonite Slurry
1. Classification le Tshebetso ea slurry
1.1 Karolelano
Bentonite, eo hape e tsejoang e le lejoe la bentonite, ke lejoe la letsopa le nang le karolo e phahameng ea montmorillonite, eo hangata e nang le palo e nyenyane ea illite, kaolinite, zeolite, feldspar, calcite, joalo-joalo. Har'a bona, bentonite e thehiloeng ka calcium e ka aroloa ka bentonite e thehiloeng ka calcium-sodium le calcium-magnesium-based, hape.
1.2 Tshebetso
1) Thepa ea 'Mele
Bentonite e tšoeu 'me e mosehla o mosehla ka tlhaho ha e boetse e hlaha ka bohlooho bo bobebe, bo botala bo botala bo botala, bo bofubelu bo sootho, bo ntšo, joalo-joalo Bentonite e fapana ka ho satalla ka lebaka la thepa ea bona ea' mele.
2) Sebopeho sa Lik'hemik'hale
Likarolo tse ka sehloohong tsa lik'hemik'hale tsa bentonite ke silicon dioxide (SiO2), aluminium oxide (Al2O3) le metsi (H2O). Litaba tsa tšepe ea oxide le magnesium oxide le tsona li phahame ka linako tse ling, 'me khalsiamo, sodium, potasiamo hangata li teng ka bentonite ka litaba tse fapaneng. Litaba tsa Na2O le CaO ka bentonite li etsa phapang ho thepa ea 'mele le ea lik'hemik'hale, esita le theknoloji ea ts'ebetso.
3) Thepa ea 'Mele le Lik'hemik'hale
Bentonite e ipabola ka hygroscopicity ea eona e nepahetseng, e leng katoloso kamora ho monya metsi. Nomoro ea katoloso e kenyelletsang ho monya metsi e fihla holimo ho makhetlo a 30. E ka qhalakanngoa ka metsing ho etsa viscous, thixotropic, le lubricate colloidal suspension. E fetoha e bonolo 'me ea khomarela ka mor'a hore e kopane le litšila tse ntle tse kang metsi, slurry kapa lehlabathe. E khona ho monya likhase tse fapa-fapaneng, lino le lintho tse phelang, 'me matla a mangata a adsorption a ka fihla makhetlo a 5 boima ba eona. Lefatše le soeufatsang le nang le asiti e sebetsang holim'a lefatše le ka khahlisa lintho tse mebala.
Lintho tsa 'mele le tsa lik'hemik'hale tsa bentonite li itšetlehile haholo ka mofuta le litaba tsa montmorillonite eo e nang le eona. Ka kakaretso, bentonite e thehiloeng ho sodium e na le lisebelisoa tse phahameng tsa 'mele le lik'hemik'hale le ts'ebetso ea theknoloji ho feta bentonite e thehiloeng ho calcium kapa magnesium.
2. Tekanyo e Tsoelang Pele ea Bentonite Slurry
TheLonnmetere mochengbentoniteslurrytekanometarake inthanetengpulp density metere sebelisoang khafetsa lits'ebetsong tsa indasteri. Boima ba slurry bo bolela karo-karolelano ea boima ba slurry ho boima ba molumo o itseng oa metsi. Boholo ba sekhahla sa seretse se lekantsoeng setšeng se ipapisitse le boima ba 'mele oa slurry le likheo tsa ho cheka ka har'a slurry. Boima ba li-admixtures bo lokela ho kenyelletsoa hape haeba bo le teng.
3. Tšebeliso ea Slurry tlas'a Maemo a Fapaneng a Geological
Ho thata ho phunya lesoba ka har'a sander, lehlohlojane, likaroloana tsa majoana le libaka tse robehileng bakeng sa thepa e nyane ea ho kopanya lipakeng tsa likaroloana. Senotlolo sa bothata ke ho eketsa matla a tlamahano har'a likaroloana, 'me ho nka slurry e le tšireletso e sireletsang strata e joalo.
3.1 Phello ea Boima ba Slurry ho Lebelo la ho Cheka
Lebelo la ho cheka le fokotseha ka sekhahla se ntseng se eketseha sa slurry. Lebelo la ho cheka le fokotseha haholo, haholo-holo ha boima ba slurry bo feta 1.06-1.10 g/cm.3. Ho phahama ha viscosity ea slurry ke, ho fokotsa lebelo la ho phunya.
3.2 Phello ea Lehlabathe le Slurry ho Bopong
Likahare tsa lithōle tsa majoe a slurry li baka likotsi tsa ho cheka, e leng se etsang hore ho be le masoba a hloekisitsoeng ka mokhoa o sa lokelang le ho khomarela. Ho feta moo, e ka baka khatello ea maikutlo le khatello ea maikutlo, e bakang ho lutla kapa ho putlama ha seliba. Likahare tsa lehlabathe li phahame 'me sediment ka mokoting ke e teteaneng. E etsa hore lerako la lesoba le oe ka lebaka la metsi, 'me ho bonolo ho etsa hore letlalo le boreleli le theohe le ho baka likotsi ka mokoting. Ka nako e ts'oanang, lihlahisoa tse phahameng tsa sediment li baka ho senyeha ho hoholo ha liphaephe, li-drill bits, matsoho a li-cylinder tsa pompo ea metsi, le lithupa tsa piston, 'me bophelo ba bona ba tšebeletso bo khutšoanyane. Ka hona, tlas'a motheo oa ho netefatsa ho leka-lekana ha khatello ea sebopeho, sekhahla sa slurry le lehlabathe li lokela ho fokotsoa ka hohle kamoo ho ka khonehang.
3.3 Sekhahla sa Seretse Mobung o Bonolo
Likarolong tse bonolo tsa mobu, haeba sekhahla sa slurry se le tlase haholo kapa lebelo la ho phunya le potlakile haholo, ho tla lebisa ho putlama ha lesoba. Hangata ho molemo ho boloka boima ba slurry bo le 1.25g/cm3sebakeng sena sa mobu.
4. Mekhoa e tloaelehileng ea Slurry
Ho na le mefuta e mengata ea slurry ho boenjiniere, empa e ka aroloa ka mefuta e latelang ho latela sebopeho sa eona sa lik'hemik'hale. Mokhoa oa ho ikatisa ke o latelang:
4.1 Na-Cmc (Sodium Carboxymethyl Cellulose) Slurry
Seretse sena ke seretse se atileng haholo se ntlafatsang viscosity, 'me Na-CMC e bapala karolo ea ntlafatso ea viscosity le phokotso ea tahlehelo ea metsi. Foromo ke: 150-200g ea letsopa la boleng bo holimo, 1000ml ea metsi, 5-10Kg ea soda molora, le hoo e ka bang 6kg ea Na-CMC. thepa ea slurry ke: density 1.07-1.1 g/cm3, viscosity 25-35s, tahlehelo ea metsi ka tlase ho 12ml/30min, pH ea bohlokoa e ka bang 9.5.
4.2 Tšepe ea Chromium Letsoai-Na-Cmc Slurry
Seretse sena se na le ntlafatso e matla ea viscosity le botsitso, 'me letsoai la iron chromium le bapala karolo ea ho thibela ho phalla (dilution). Foromo ke: letsopa 200g, 1000ml metsi, hoo e ka bang 20% tlatsetso ea tharollo ea alkali e hloekileng ka 50% ea mahloriso, 0.5% ea motsoako oa letsoai la ferrochromium ka 20% ea mahloriso, le 0.1% Na-CMC. Thepa ea seretse ke: density 1.10 g/cm3, viscosity 25s, tahlehelo ea metsi 12ml/30min, pH 9.
4.3 Lignin Sulfonate Slurry
Lignin sulfonate e tsoa ho sulfite pulp litšila tsa mokelikeli 'me hangata e sebelisoa hammoho le mashala alkali agent ho rarolla anti-flocculation le tahlehelo ea metsi ea slurry motheong oa ho eketseha viscosity. Foromo ke letsopa la 100-200kg, 30-40kg sulfite pulp waste liquid, 10-20kg mashala alkali agent, 5-10kg NaOH, 5-10kg defoamer, le 900-1000L metsi bakeng sa 1m3 slurry. Thepa ea slurry ke: density 1.06-1.20 g/cm3, funnel viscosity 18-40s, tahlehelo ea metsi 5-10ml/30min, le 0.1-0.3kg Na-CMC e ka eketsoa nakong ea ho cheka ho fokotsa tahlehelo ea metsi.
4.4 Humic Acid Slurry
Humic acid slurry e sebelisa mashala alkali agent kapa sodium humate e le stabilizer. E ka sebelisoa hammoho le lisebelisoa tse ling tsa kalafo tse kang Na-CMC. Mokhoa oa ho lokisa humic acid slurry ke ho eketsa 150-200kg mashala alkali agent ( boima bo omileng), 3-5kg Na2CO3, le 900-1000L metsi ho 1m3 ea slurry. thepa ea slurry: boima ba 1.03-1.20 g/cm3, tahlehelo ea metsi 4-10ml/30min, pH 9.
Nako ea poso: Feb-12-2025
