Qhov ntom ntawm Bentonite Slurry
1. Kev faib tawm thiab kev ua haujlwm ntawm slurry
1.1 Kev faib tawm
Bentonite, tseem hu ua bentonite pob zeb, yog cov av nplaum pob zeb uas muaj feem pua ntawm montmorillonite, uas feem ntau muaj me me ntawm illite, kaolinite, zeolite, feldspar, calcite, thiab lwm yam. Bentonite tuaj yeem faib ua peb hom: sodium-based bentonite (alkaline bentonite av), calcium-based av. (acidic av). Ntawm lawv, calcium-based bentonite tuaj yeem muab faib ua calcium-sodium-based thiab calcium-magnesium-based bentonites, ib yam nkaus.
1.2 Kev ua haujlwm
1) Lub cev muaj zog
Bentonite yog dawb thiab lub teeb daj nyob rau hauv ntuj thaum nws kuj tshwm nyob rau hauv lub teeb grey, lub teeb ntsuab liab liab, xim av liab, dub, thiab lwm yam. Bentonite sib txawv nyob rau hauv nruj vim lawv lub cev zog.
2) Tshuaj muaj pes tsawg leeg
Lub ntsiab chemical Cheebtsam ntawm bentonite yog silicon dioxide (SiO2), txhuas oxide (Al2O3) thiab dej (H2O). Cov ntsiab lus ntawm cov hlau oxide thiab magnesium oxide kuj siab qee zaum, thiab calcium, sodium, potassium feem ntau muaj nyob hauv bentonite hauv cov ntsiab lus sib txawv. Cov ntsiab lus ntawm Na2O thiab CaO hauv bentonite ua rau muaj qhov sib txawv ntawm lub cev thiab tshuaj lom neeg, thiab txawm tias txheej txheem thev naus laus zis.
3) Lub cev & tshuaj muaj zog
Bentonite tawm hauv nws qhov kev pom zoo hygroscopicity, uas yog nthuav tawm tom qab nqus dej. Tus naj npawb nthuav dav nrog rau kev nqus dej nce mus txog 30 zaug. Nws tuaj yeem tawg mus rau hauv dej los ua kom khov, thixotropic, thiab lubricate colloidal ncua kev kawm ntawv. Nws hloov tau yooj yim thiab nplaum tom qab sib xyaw nrog cov khib nyiab zoo xws li dej, slurry lossis xuab zeb. Nws muaj peev xwm nqus tau ntau yam roj, kua, thiab cov organic, thiab qhov siab tshaj plaws adsorption muaj peev xwm ncav cuag 5 npaug ntawm nws qhov hnyav. Lub nto-active acid bleaching ntiaj teb tuaj yeem adsorb xim xim.
Lub cev thiab tshuaj lom neeg ntawm bentonite feem ntau yog nyob ntawm hom thiab cov ntsiab lus ntawm montmorillonite nws muaj. Feem ntau, sodium-based bentonite muaj lub cev zoo tshaj plaws thiab tshuaj lom neeg thiab kev ua haujlwm thev naus laus zis dua li calcium-based lossis magnesium-based bentonite.
2. Kev ntsuas tsis tu ncua ntawm Bentonite Slurry
CovLonnmeterhauv kabbentoni ibteslua urryceevmeteryog onlinePulp density meternquag siv nyob rau hauv industrial cov txheej txheem. Qhov ceev ntawm slurry yog hais txog qhov sib piv ntawm qhov hnyav ntawm slurry mus rau qhov hnyav ntawm cov dej teev. Qhov loj ntawm slurry ntom ntsuas ntawm qhov chaw nyob ntawm qhov hnyav tag nrho ntawm slurry thiab laum cuttings hauv slurry. Qhov hnyav ntawm cov khoom sib xyaw yuav tsum suav nrog yog tias muaj.
3. Daim ntawv thov ntawm Slurry nyob rau hauv txawv Geological mob
Nws yog ib qho nyuaj rau tho ib lub qhov nyob rau hauv sander, gravel, pebbles txheej thiab tawg tsam rau junior bonding zog ntawm hais. Tus yuam sij rau qhov teeb meem yog nyob rau hauv kev sib txuas ua ke ntawm cov khoom, thiab siv slurry raws li kev tiv thaiv kev tiv thaiv nyob rau hauv xws li strata.
3.1 Cov nyhuv ntawm Slurry ceev ntawm Drilling ceev
Lub drilling ceev txo nrog nce slurry ceev. Qhov drilling ceev txo qis, tshwj xeeb tshaj yog thaum slurry ntom ntau dua 1.06-1.10 g / cm3.3. Qhov siab dua qhov viscosity ntawm slurry yog, qhov qis dua qhov drilling ceev.
3.2 Cov ntsiab lus ntawm cov xuab zeb hauv Slurry ntawm Drilling
Cov ntsiab lus ntawm cov pob zeb khib nyiab hauv slurry ua rau muaj kev pheej hmoo ntawm kev khawb, ua rau cov qhov tsis huv huv thiab tom qab daig. Tsis tas li ntawd, nws tuaj yeem ua rau nqus thiab ua kom muaj zog, ua rau cov dej ntws los yog qhov dej zoo. Cov xuab zeb cov ntsiab lus yog siab thiab cov sediment nyob rau hauv lub qhov yog tuab. Nws ua rau lub qhov phab ntsa ntub dej vim yog dej, thiab nws yooj yim ua rau cov tawv nqaij slurry ntog thiab ua rau muaj xwm txheej hauv lub qhov. Nyob rau tib lub sijhawm, cov ntsiab lus ntawm cov xuab zeb siab ua rau hnav zoo heev ntawm cov kav dej, cov khoom siv tho, lub tes tsho dej twj tso kua mis, thiab cov pas nrig piston, thiab lawv lub neej kev pabcuam luv luv. Yog li ntawd, nyob rau hauv lub premise ntawm kom ntseeg tau qhov sib npaug ntawm kev tsim siab, slurry ceev thiab xuab zeb cov ntsiab lus yuav tsum tau txo kom ntau li ntau tau.
3.3 Slurry ceev hauv cov av mos
Hauv cov av muag av muag, yog tias cov slurry ntom ntom ntom dhau tsawg lossis qhov khiav ceev ceev yog nrawm heev, nws yuav ua rau qhov muab khi. Feem ntau nws yog qhov zoo dua los khaws cov slurry ntom ntawm 1.25g / cm23hauv txheej av no.
4. Common Slurry Formulas
Muaj ntau ntau hom slurry hauv engineering, tab sis lawv tuaj yeem muab faib ua hom hauv qab no raws li lawv cov tshuaj muaj pes tsawg leeg. Txoj kev proportioning yog raws li nram no:
4.1 Na-Cmc (Sodium Carboxymethyl Cellulose) Slurry
Cov slurry no yog cov feem ntau viscosity-txhim kho slurry, thiab Na-CMC plays lub luag hauj lwm nyob rau hauv ntxiv viscosity li thiab txo dej poob. Cov mis yog: 150-200g ntawm cov av nplaum zoo slurry, 1000ml dej, 5-10Kg ntawm soda tshauv, thiab txog 6kg Na-CMC. Cov khoom siv slurry yog: ntom 1.07-1.1 g / cm3, viscosity 25-35s, dej poob qis dua 12ml / 30min, pH tus nqi txog 9.5.
4.2 Hlau Chromium ntsev-Na-Cmc Slurry
Cov slurry no muaj zog viscosity li thiab stability, thiab hlau chromium ntsev plays lub luag hauj lwm los tiv thaiv flocculation (dilution). Cov mis yog: 200g av nplaum, 1000ml dej, li 20% ntxiv ntawm ntshiab alkali tov ntawm 50% concentration, 0.5% ntxiv ntawm ferrochromium ntsev tov ntawm 20% concentration, thiab 0.1% Na-CMC. Cov khoom siv slurry yog: ntom 1.10 g / cm3, viscosity 25s, dej poob 12ml / 30min, pH 9.
4.3 Lignin Sulfonate Slurry
Lignin sulfonate yog muab los ntawm sulfite pulp pov tseg kua thiab feem ntau yog siv ua ke nrog cov thee alkali tus neeg sawv cev los daws cov kev tiv thaiv flocculation thiab dej poob ntawm slurry nyob rau hauv lub hauv paus ntawm viscosity nce. Cov mis yog 100-200kg av nplaum, 30-40kg sulfite pulp pov tseg kua, 10-20kg thee alkali tus neeg sawv cev, 5-10kg NaOH, 5-10kg defoamer, thiab 900-1000L dej rau 1m3 slurry. Cov khoom slurry yog: ceev 1.06-1.20 g / cm3, funnel viscosity 18-40s, dej poob 5-10ml / 30min, thiab 0.1-0.3kg Na-CMC tuaj yeem muab ntxiv thaum lub sij hawm drilling kom txo tau dej ntxiv.
4.4 Humic Acid Slurry
Humic acid slurry siv thee alkali tus neeg saib xyuas lossis sodium humate ua tus stabilizer. Nws tuaj yeem siv ua ke nrog lwm cov tshuaj kho mob xws li Na-CMC. Cov mis rau kev npaj humic acid slurry yog ntxiv 150-200kg thee alkali tus neeg sawv cev (qhuav hnyav), 3-5kg Na2CO3, thiab 900-1000L dej rau 1m3 ntawm slurry. slurry zog: ceev 1.03-1.20 g / cm3, dej poob 4-10ml / 30min, pH 9.
Post lub sij hawm: Feb-12-2025
