Kaolin ili ndi malo ambiri osungiramo zinthu m'dziko langa, ndipo malo osungiramo zinthu omwe atsimikiziridwa kuti ali ndi matani pafupifupi 3 biliyoni, omwe amapezeka makamaka ku Guangdong, Guangxi, Jiangxi, Fujian, Jiangsu ndi malo ena. Chifukwa cha zifukwa zosiyanasiyana za mapangidwe a geology, kapangidwe ndi kapangidwe ka kaolin kuchokera kumadera osiyanasiyana opanga zinthu ndizosiyana. Kaolin ndi silicate ya mtundu wa 1:1, yomwe imapangidwa ndi octahedron ndi tetrahedron. Zigawo zake zazikulu ndi SiO2 ndi Al203. Ilinso ndi Fe203, Ti02, MgO, CaO, K2O ndi Na2O, ndi zina zotero. Kaolin ili ndi zinthu zambiri zabwino kwambiri zakuthupi ndi zamakemikolo komanso machitidwe ake, kotero imagwiritsidwa ntchito kwambiri mu petrochemicals, kupanga mapepala, zipangizo zogwirira ntchito, zokutira, zoumba, zipangizo zoteteza madzi, ndi zina zotero. Ndi kupita patsogolo kwa sayansi ndi ukadaulo wamakono, kugwiritsa ntchito kaolin kwatsopano kukukulirakulira, ndipo akuyamba kulowa m'minda yapamwamba, yolondola komanso yamakono. Mchere wa Kaolin uli ndi mchere wochepa (nthawi zambiri 0.5% mpaka 3%) wachitsulo (iron oxides, ilmenite, siderite, pyrite, mica, tourmaline, ndi zina zotero), zomwe zimapaka utoto kaolin ndikukhudza kuyera kwake ndi zinthu zina zimachepetsa kugwiritsa ntchito kaolin. Chifukwa chake, kusanthula kapangidwe ka kaolin ndi kafukufuku waukadaulo wake wochotsa zodetsa ndikofunikira kwambiri. Zodetsa zamitundu iyi nthawi zambiri zimakhala ndi mphamvu zofooka zamaginito ndipo zimatha kuchotsedwa ndi kulekanitsa kwa maginito. Kulekanitsa kwa maginito ndi njira yolekanitsira tinthu ta mchere mu mphamvu yamaginito pogwiritsa ntchito kusiyana kwa maginito kwa mchere. Pa mchere wamaginito wofooka, mphamvu yamaginito yolimba kwambiri imafunika kuti kulekanitsa kwa maginito kukhale koyenera.
Kapangidwe ndi mfundo yogwirira ntchito ya HTDZ high gradient slurry magnetic separator
1.1 Kapangidwe ka cholekanitsa maginito cha electromagnetic slurry high gradient
Makinawa amapangidwa makamaka ndi chimango, choziziritsa mafuta chozizira, makina a maginito, njira yolekanitsira, makina ozizira a coil, makina osambira, makina olowera ndi otulutsa, makina owongolera, ndi zina zotero.
Chithunzi 1 Chithunzi cha kapangidwe ka maginito olekanitsa okwera kwambiri a slurry yamagetsi
1- Chokokera chotsitsimula 2- Dongosolo la maginito 3- Cholekanitsa chapakati 4- Valavu ya pneumatic 5- Paipi yotulutsira mpweya wa Pulp
Chitoliro cha 6-Escalator 7-Inlet 7-Slag discharge 8-Slag
1.2 Makhalidwe aukadaulo a HTDZ electromagnetic slurry high gradient magnetic separator
◎Ukadaulo woziziritsa mafuta: Mafuta ozizira otsekedwa bwino amagwiritsidwa ntchito poziziritsa, kusinthana kutentha kumachitika pogwiritsa ntchito mfundo yosinthirana kutentha pakati pa mafuta ndi madzi, ndipo pampu yamafuta yosinthira ma disc akuluakulu imagwiritsidwa ntchito. Mafuta ozizirawa ali ndi liwiro loyenda mofulumira, mphamvu yosinthira kutentha kwambiri, kutentha kochepa kukwera, komanso mphamvu yamagetsi yamphamvu.
◎Kukonza kwamakono ndi ukadaulo wamakono wokhazikika: Kudzera mu gawo lokonzanso, mphamvu yotuluka yokhazikika imapezeka, ndipo mphamvu yotulutsa imasinthidwa malinga ndi mawonekedwe a zipangizo zosiyanasiyana kuti zitsimikizire mphamvu yokhazikika ya maginito ndikupeza index yabwino kwambiri yopezera phindu.
◎Ukadaulo waukulu wamaginito opangidwa ndi zipilala zazikulu: Gwiritsani ntchito zida zachitsulo kuti mukulunga chozungulira chopanda kanthu, pangani kapangidwe koyenera ka maginito amagetsi, kuchepetsa kuchuluka kwa zida zachitsulo, kuchepetsa kutuluka kwa maginito, ndikupanga mphamvu yayikulu m'malo osungiramo zinthu.
◎Ukadaulo wolekanitsa mpweya wolimba ndi madzi-magawo atatu: Zinthu zomwe zili m'chipinda cholekanitsa zinthu zimayendetsedwa ndi mphamvu yokoka, mphamvu yokoka, ndi maginito kuti zigwire bwino ntchito yake. Kuphatikiza madzi otulutsira ndi mpweya wothamanga kwambiri kumapangitsa kuti madzi azitsuka bwino.
◎Ukadaulo watsopano wosapanga dzimbiri wa maginito woyendetsa ndi zinthu zamaginito: chosinthira chimagwiritsa ntchito ubweya wachitsulo, maukonde opangidwa ngati diamondi, kapena kuphatikiza ubweya wachitsulo ndi maukonde opangidwa ngati diamondi. Chosinthira ichi chimaphatikiza mawonekedwe a zida, komanso kafukufuku ndi chitukuko cha chitsulo chosapanga dzimbiri chosatha kusweka, mphamvu ya maginito yolowetsa mphamvu ndi yayikulu, ndikosavuta kugwira mchere wofooka wa maginito, kubwereranso kwake ndi kochepa, ndipo chosinthiracho chimakhala chosavuta kutsuka pamene miyala yatuluka.
1.3 Kusanthula mfundo za zida ndi kusanthula kugawa kwa mphamvu ya maginito
1.3.1Mfundo yosankha ndi iyi:: Mu chogwirira chotetezedwa, ubweya wina wachitsulo chosapanga dzimbiri choyendetsa maginito (kapena chitsulo chokulitsa) umayikidwa. Chogwiriracho chikayamba kugwedezeka, ubweya wachitsulo chosapanga dzimbiri choyendetsa maginito umapangidwa ndi maginito, ndipo mphamvu ya maginito yosafanana imapangidwa pamwamba, yomwe ndi mphamvu ya maginito yoyendera maginito yapamwamba kwambiri, pamene zinthu za paramagnetic zimadutsa mu ubweya wachitsulo mu thanki yosankhidwira, zidzalandira mphamvu ya maginito yofanana ndi zomwe zapangidwa ndi mphamvu ya maginito yogwiritsidwa ntchito ndi mphamvu ya maginito, ndipo zidzayamwa pamwamba pa ubweya wachitsulo, m'malo mwa zinthu zopanda maginito zomwe zimadutsa mphamvu ya maginito mwachindunji. Zimalowa mu thanki yazinthu zopanda maginito kudzera mu valavu ndi payipi yopanda maginito. Zinthu zopanda maginito zofooka zomwe zasonkhanitsidwa ndi ubweya wachitsulo zikafika pamlingo winawake (zotsimikiziridwa ndi zofunikira za njira), siyani kudyetsa miyala. Chotsani mphamvu yosonkhezera ndikutulutsa zinthu zamaginito. Zinthu zamaginito zimalowa mu thanki yazinthu zamaginito kudzera mu valavu ndi payipi ya maginito. Kenako chitani ntchito yachiwiri ya kusukulu, ndikubwerezanso izi.
1.3.2Kusanthula kugawa kwa maginito: Gwiritsani ntchito pulogalamu yapamwamba ya finite element kuti muyesere mwachangu mapu a mitambo yogawa mphamvu ya maginito, kufupikitsa nthawi yopangira ndi kusanthula; gwiritsani ntchito kapangidwe kokonzedwa bwino kuti muchepetse kugwiritsa ntchito mphamvu zamagetsi ndikuchepetsa ndalama zomwe ogwiritsa ntchito amagwiritsa ntchito; pezani mavuto omwe angakhalepo musanapange zinthu, Wonjezerani kudalirika kwa zinthu ndi mapulojekiti; yesani njira zosiyanasiyana zoyesera, chepetsani nthawi yoyesera ndi ndalama zomwe zimagwiritsidwa ntchito;
Makhalidwe a kayendedwe ka mchere
2.1 Kusanthula kayendedwe ka zinthu
Cholekanitsa maginito cha HTDZ chokwera kwambiri ndi choyenera kudyetsera pansi pokonza kaolin. Zipangizozi zimagwiritsa ntchito ubweya wosapanga dzimbiri (kapena chitsulo chotambasulidwa) ngati njira yosankhira, kotero kuti njira ya tinthu ta m'miyala siili yofanana m'mbali zoyima ndi zopingasa. Kuyenda kwa tinthu ta m'miyala kwawonetsedwa pa Chithunzi 1. Chifukwa chake, kukulitsa nthawi yoyenda ndi mtunda wa mchere m'dera lolekanitsa kumathandiza kuti maginito ofooka azitha kulowa bwino. Kuphatikiza apo, kuchuluka kwa madzi oundana, mphamvu yokoka, ndi kuyenda bwino panthawi yolekanitsa zimalumikizana. Zotsatira zake ndikusunga tinthu ta m'miyala nthawi zonse, kuchepetsa kumamatirana pakati pa tinthu ta m'miyala, ndikuwonjezera mphamvu yochotsa chitsulo. Pezani zotsatira zabwino zokonzera.
Chithunzi 4 Chithunzi cha kayendedwe ka mchere
1. Netiweki ya media 2. Tinthu ta maginito 3. Tinthu tosakhala ndi maginito.
2. Mtundu wa miyala yaiwisi ndi njira yoyambira yophikira
2.1 Katundu wa mchere winawake wa kaolin ku Guangdong:
Michere ya gangue ya kaolin m'dera lina ku Guangdong ikuphatikizapo quartz, muscovite, biotite ndi feldspar, ndi kuchuluka kochepa kwa wofiira ndi limonite. Quartz imachulukitsidwa kwambiri ndi kukula kwa tirigu wa +0.057mm, kuchuluka kwa mica ndi feldspar kumachulukitsidwa ndi kukula kwa tirigu wapakati (0.02-0.6mm), ndipo kuchuluka kwa kaolinite ndi kuchuluka kochepa kwa mchere wamdima kumawonjezeka pang'onopang'ono pamene kukula kwa tirigu kumachepa. , Kaolinite imayamba kuchulukitsidwa pa -0.057mm, ndipo mwachiwonekere imachulukitsidwa pa -0.020mm.
Gome 1 Zotsatira za kusanthula kwa zinthu zambiri za kaolin ore%
2.2 Mikhalidwe yayikulu yopezera phindu yomwe imagwiritsidwa ntchito pofufuza zitsanzo zazing'ono
Zinthu zazikulu zomwe zimakhudza njira yolekanitsira maginito ya HTDZ high gradient slurry magnetic separator ndi kuchuluka kwa madzi otuluka, mphamvu ya maginito yakumbuyo, ndi zina zotero. Zinthu ziwiri zazikulu zotsatirazi zayesedwa mu kafukufukuyu woyesera.
2.2.1 Kuthamanga kwa madzi oundana: Pamene kuyenda kwa madzi kuli kwakukulu, kuchuluka kwa madzi oundana kumakhala kwakukulu, ndipo kuchuluka kwa chitsulo chake kumakhala kwakukulu; pamene kuyenda kwa madzi kuli kochepa, kuchuluka kwa chitsulo choundana kumakhala kochepa, ndipo kuchuluka kwake kumakhala kochepa. Deta yoyesera ikuwonetsedwa mu Table 2
Gome 2 Zotsatira zoyesera za kuchuluka kwa madzi otuluka mu slurry
Dziwani: Kuyesa kwa slurry flow rate kumachitika pansi pa mikhalidwe ya background magnetic field ya 1.25T ndi mlingo wa dispersant wa 0.25%.
Chithunzi 5 Kulumikizana pakati pa kuchuluka kwa madzi ndi Fe2O3
Chithunzi 6 Kugwirizana pakati pa liwiro la kuyenda ndi yoyera youma.
Poganizira mtengo wopindulitsa bwino, kuchuluka kwa madzi otuluka mu slurry kuyenera kuyendetsedwa pa 12mm/s.
2.2.2 Mphamvu ya maginito yakumbuyo: Mphamvu ya maginito yakumbuyo ya slurry magnetic separator imagwirizana ndi lamulo la kaolin magnetic removal removal, ndiko kuti, mphamvu ya maginito ikakwera, kuchuluka kwa concentrate ndi chitsulo cha magnetic separator zonse zimakhala zochepa, ndipo kuchuluka kwa chitsulo chochotsedwa kumakhala kochepa. Mphamvu yayikulu komanso yabwino yochotsera chitsulo.
Gome 3 Zotsatira zoyesera za mphamvu yamaginito yakumbuyo
Zindikirani: Kuyesa kwa mphamvu ya maginito kumbuyo kumachitika pansi pa mikhalidwe ya slurry flow rate ya 12mm/s ndi dispersant dose ya 0.25%.
Popeza mphamvu ya maginito yakumbuyo ikakhala yayikulu, mphamvu yosonkhezera imakhala yayikulu, mphamvu yogwiritsira ntchito zida imakwera, komanso mtengo wopangira unit umakwera. Poganizira mtengo wopangira zinthu, mphamvu ya maginito yakumbuyo yosankhidwa imayikidwa pa 1.25T.
Chithunzi 7 Kugwirizana pakati pa mphamvu ya maginito ndi kuchuluka kwa Fe2O3.
2.3 Kusankha njira yoyambira yopatukana kwa maginito
Cholinga chachikulu cha kaolin ore beneficiation ndikuchotsa chitsulo ndikuyeretsa. Malinga ndi kusiyana kwa maginito kwa mchere uliwonse, kugwiritsa ntchito mphamvu yamaginito yokwera kwambiri kuchotsa chitsulo ndikuyeretsa kaolin ndikothandiza, ndipo njirayi ndi yosavuta komanso yosavuta kuyigwiritsa ntchito m'mafakitale. Chifukwa chake, cholekanitsa maginito cha slurry chokwera kwambiri, chimodzi cholimba ndi china chosalala, chimagwiritsidwa ntchito ngati njira yosankhira.
Kupanga mafakitale
3.1 Njira yopangira mafakitale a Kaolin
Pochotsa chitsulo kuchokera ku miyala ya kaolin m'dera linalake ku Guangdong, kuphatikiza kwa HTDZ-1000 kumagwiritsidwa ntchito kupanga njira yolekanitsa maginito yopyapyala. Tchati cha kayendedwe ka madzi chikuwonetsedwa pa Chithunzi 2.
3.2 Mikhalidwe yopangira mafakitale
3.2.1Kugawa zinthu: cholinga chachikulu: 1. Siyani zinthu zodetsa monga quartz, feldspar ndi mica mu kaolin pasadakhale kudzera mu mphepo yamkuntho ya magawo awiri, chepetsani kupanikizika kwa zida zotsatizana, ndikugawa kukula kwa tinthu kuti tikwaniritse zofunikira za zida zotsatizana. 2. Popeza njira yolekanitsira ya slurry magnetic separator ndi ubweya wachitsulo wa 3#, kukula kwa tinthu kuyenera kukhala pansi pa 250 mesh kuti zitsimikizire kuti palibe tinthu totsala mu njira yachitsulo ya ubweya kuti ubweya wachitsulo usatseke njira yachitsulo ya ubweya, zomwe zimakhudza index ya ubwino ndi kutsuka kwapakati ndi mphamvu yokonza zida, ndi zina zotero.
3.2.2Mikhalidwe yogwirira ntchito yolekanitsa maginito: kayendedwe ka njira kamagwiritsa ntchito njira imodzi yolimba komanso imodzi yopepuka komanso njira imodzi yotseguka. Malinga ndi kuyesera kwa chitsanzo, mphamvu ya malo oyambira ya separator ya maginito ya slurry yokhala ndi ma gradient ambiri yogwiritsira ntchito roughing ndi 0.7T, separator ya maginito ya gradient yapamwamba yogwiritsira ntchito kusankha ndi 1.25T, ndipo separator ya maginito ya HTDZ-1000 yogwiritsira ntchito roughing slurry imagwiritsidwa ntchito. Yokhala ndi separator ya maginito ya slurry yosankhidwa ya HTDZ-1000.
3.3 Zotsatira za kupanga mafakitale
Kupanga kwa kaolin m'mafakitale pochotsa chitsulo pamalo ena ku Guangdong, keke ya chitsanzo cha chinthucho yopangidwa ndi HTDZ slurry high gradient magnetic separator ikuwonetsedwa mu Chithunzi 3, ndipo deta ikuwonetsedwa mu Table 2.
Keke 1: Ndi keke yachitsulo yaiwisi yomwe imalowa mu cholekanitsa cha maginito cholekanitsa chopanda matope
Chidutswa chachiwiri: Chidutswa cha chitsanzo cha chidutswa
Chipatso 3, Chipatso 4, Chipatso 5: Zitsanzo zosankhidwa
Gome 2 Zotsatira za kupanga mafakitale (zotsatira za kusanthula ndi kuswa makeke nthawi ya 20:30 pa Novembala 6)
Chithunzi 3 Chitsanzo cha keke yopangidwa ndi kaolin pamalo ena ku Guangdong
Zotsatira za kupanga zikusonyeza kuti kuchuluka kwa Fe2O3 mu concentrate kungachepe ndi pafupifupi 50% kudzera m'magawo awiri a maginito okwera kwambiri a slurry, ndipo zotsatira zabwino zochotsera chitsulo zitha kupezeka.
应用案例
Nthawi yotumizira: Marichi-27-2021