Ki te whakanui koe tono i roto i te maroke wehewehenga Triboelectric o Minerals

Ki te whakanui koe tono i roto i te maroke Triboelectric

Wehenga o Minerals

James D. Bittner, Kyle P. Flynn, ko Frank J. Hrach

ST Taputapu & hangarau LLC, Needham Massachusetts 02494 USA

Teremera: +1-781-972-2300, email: jbittner@titanamerica.com

waitara

ST Taputapu & hangarau, LLC (STET) Kua whakawhanakehia he pūnaha tukatuka e hāngai ana i runga i te wehenga whitiki triboelectrostatic e whakarato ana i te ahumahi tukatuka kohuke te tikanga ki te beneficiate rauemi pai ki te hangarau katoa maroke. Roto i te rerekē ki ētahi atu tukanga wehenga hiko e e te nuinga iti ki matūriki nui atu 75μm i roto i te rahi, Kei te tano e tano te whakawehe whitiki triboelectric mō te wehenga o te tino pai (<1μm) ki tika makaka (300μm) matūriki ki puta tiketike rawa. Ko te tōtika nui maha-atamira wehenga i roto i ā e mea / recharging me te hangarua hua i roto i māvaé tawhiti pai e taea te tutuki ki te tikanga kotahi-atamira kua akariro hinga whakawehe triboelectrostatic. Kua te triboelectric hangarau whitiki whakawehe kua whakamahia ki te wehe i te whānui o ngā rauemi ngā tae atu ranunga o waiwai aluminosilicates / waro, konupāhiko / kiripaka, talc / magnesite, me barite / kiripaka. He whakarite ōhanga o te whakamahi i te wehenga whitiki triboelectrostatic versus tēnei waka tikanga mō te barite / whakaatu wehenga kiripaka nga painga o te tukatuka maroke hoki kohuke.

kupumatua: kohuke, wehenga maroke, barite, utu triboelectrostatic, whitiki whakawehe, rere pungarehu

KUPU WHAKATAKI

Kei te hoko te kore o te whai wāhi ki te wai hou i te take nui e pa ana i te whaihuanga o ngā kaupapa keri huri noa te ao. E ai ki a Hubert Fleming, kaiwhakahaere ao mua mō te Hatch Water, "O te kaupapa keri katoa i roto i te ao e kua mutu rānei pakanga iho i runga i te tau kua hipa ranei, Kua kua reira, i roto i tata 100% o nga take, he hua o te wai, hangatonu pe ta'efakahangatonu "Blin (2013). tikanga tukatuka kohuke maroke whakahere he otinga ki tenei raruraru hāparangi.

tikanga wehenga Wet pērā i pahuka tēnei waka e rapu te tua o tauhohenga matū e Me whawha humarie ka tikanga o roto i te tikanga taiao kawenga. Te taniwha, e kore e taea ki te mahi ki 100% hangarua wai, tono tikanga o te iti rawa o wahi o te wai tukanga, pea kei roto moni wahi o tauhohenga matū.

tikanga maroke pērā i te wehenga hiko ka faaore i te hiahia mō te wai hou, ka whakahere i te pūmanawa ki te whakaiti i ngā utu. Ko tētahi o nga whanaketanga hou tino whaihua i roto i māvaé kohuke maroke ko te whakawehe triboelectrostatic whitiki. Kua atu tenei hangarau te whānuitanga rahi matūriki ki kaitahi matūriki atu tikanga hangarau wehenga hiko, ki te whānuitanga wahi i tēnei waka anake kua angitu i roto i te mua.

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Figure 2. Taipitopito o te rohe wehenga

Ko te katoa maroke te tukanga, titau kahore rauemi atu, me te hua kore wai ururua tukunga rangi ranei. I roto i te take o te waro i māvaé pungarehu rere, nga rauemi ora ake ngā o pungarehu rere iti i roto i te te ihirangi waro ki taumata e tika ana mō te whakamahi rite he hawhekaihe pozzolanic i roto i te raima, me te hautanga waro tiketike e taea te tahu i te whakaputa tipu hiko. Whakamahi o awa hua e rua whakarato te 100% otinga ki te rere raruraru te hoko pungarehu.

Ko ngā kiato te whakawehe whitiki triboelectrostatic. He mīhini hangaia ki te tukatuka 40 tana ia haora, ko te āhua 9.1 mita (30 ft) roa, 1.7 mita (5.5 ft.) whānui, me te 3.2 mita (10.5 ft.) tiketike. Ko te toenga e hiahiatia ana o te tipu ngā o ngā pūnaha ki te kawe i ngā rauemi maroke ki a i te whakawehe. Ko te compactness o te pūnaha e āhei hoki ngāwari i roto i whakaaro tāutanga.

Figure 3. Arumoni whakawehe whitiki triboelectrostatic

Rite ki ētahi atu tukanga wehenga hiko

Ko te triboelectrostatic hangarau whitiki wehenga nui i whakawhanui te whānuitanga o ngā rauemi e taea te beneficiated e tukanga hiko. whakawhirinaki nga tukanga hiko tino whakamahia nuitia i runga i ngā rerekētanga i roto i te kawenga hiko o te rauemi ki te kia wehea. I roto i enei tukanga, Me whakapā atu te rauemi he pahū tangata whenua pereti ranei te nuinga i muri e te matūriki rauemi tōraro whakatupato e te rere kurahauao ionizing. ka ngaro rauemi conductive tiaki ratou hohoro, ka kia maka i te pahū. ki te kia ngā ki te pahū mai i te haere tonu te rauemi kore-conductive

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ka ore oioi tiaki atu āta a ka hinga ranei kia pania i te pahū i muri i te wehenga i te rauemi whakahaere. E iti ēnei tukanga i roto i te kaha e tika ana ki te whakapā e hiahiatia ana o nga korakora ki te pahū paraharaha ranei. Kei te whāiti hoki te tōtika o enei whakapā tukanga tohutohutia ki matūriki o e pā ana ki 100 μm nui i roto i te rahi e tika ana ki te hiahia e rua ki te whakapā atu i te paraharaha tūāpapa me te akiaki rere matūriki hiahiatia ranei. Ka whai hoki matūriki o rerekē te rahi o rerekē akiaki rere tika ki ngā pānga inertial a ka hua i roto i te wehenga inā. Ko te hoahoa e whai ake nei (Figure 4) whakaatu nga āhuatanga taketake o tenei momo o te whakawehe.

Figure 4. Drum Whakawehe hiko "Elder (2003)"

e kore e māvaé Triboelectrostatic iti ki te wehenga o conductive / rauemi kore-conductive engari whakawhirinaki i runga i te āhuatanga o te tiaki whakawhiti i whakapā waku o ngā rauemi ki te matū mata Nä pai mohiotia. Tenei āhuatanga i whakamahia i roto i "hinga noa" tukanga wehenga mo tekau tau. faahoho'ahia i te tukanga taua i roto i te Whakaahua 5. Wae o te ranunga o matūriki tuatahi whakawhanake rerekē utu i te whakapā rānei ki te mata whakarewa, ranei i te matūriki ki korakora whakapā i roto i te pūrere kai moenga fluidized. Ka rite ki hinga nga matūriki i roto i te mara hiko i roto i te rohe kawehiko, e whakakotititia poroāwhio o ia korakora te ki te kawehiko o tiaki ritenga. I muri i te tetahi tawhiti, E mahi rāpihi kohinga ki wehe i te awa. utanga Angamaheni rapua e wāhanga whakawehe maha ki hangarua o te hautanga middling. whakamahi ētahi pūrere i te awa on o hau ki te āwhina i te tuku o te matūriki i roto i te rohe kawehiko.

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Figure 5. "Hinga Free" whakawehe triboelectrostatic

Tenei momo o free whakawehe hinga hoki he whāititanga i roto i te rahi o te matūriki o te rauemi e taea te tukatuka. Me whakahaere te rere i roto i te rohe kawehiko kia ki whakaiti arepurepuraa ki te karo "meatanga" o te wehenga. Ko te poroāwhio o matūriki pai e atu mahia e arepurepu mai te ope rou aerodynamic i runga i matūriki pai e nui nui atu i nga ope tō me te hiko. Ka ahu ano nga matūriki rawa pai ki te kohikohi i runga i nga papa kawehiko me me nekehia atu e etahi tikanga. Matūriki o iti iho i te 75 e kore e taea te wehea tōtika μm.

Ko tētahi atu fakangatangata ko e kia te utanga o matūriki i roto i te rohe kawehiko iti ki te ārai i ngā pānga tiaki wāhi, e whakawhāiti i te auau tukatuka. Haere rauemi i roto i te rohe kawehiko ere hua i roto i te wehenga kotahi-atamira, mai i reira he kore pea hoki anō-utu o matūriki. Na reira, E hiahiatia ana ngā pūnaha maha-atamira mō te whakapai ake i te tohu o te wehenga, tae atu anō-mea ai o te rauemi i te whakapā muri ki te pūrere ka tohutohutia. Ko te piki hua rōrahi taputapu me te matatini o fakatatau.

I roto i te rerekē ki te tahi atu tukanga wehenga hiko e wātea ana, Kei te tano e tano te whakawehe whitiki triboelectrostatic mō te wehenga o te tino pai (<1 μm) ki tika makaka (300μm) rauemi ki throughputs tiketike rawa. he whai hua hoki te whānui o ngā rauemi whānui te utu matūriki triboelectric me titau anake matūriki - matūriki whakapā. Ko te āputa iti, mara hiko tiketike, te haukoti i rere nāianei, maia rōpū matūriki-matūriki me whaiaro horoi-mahi o te whitiki i runga i te electrodes ko nga āhuatanga tino o te whakawehe. Ko te tōtika nui wehenga maha-atamira i roto i tohutohutia / recharging me hua para ā-i roto i māvaé tawhiti pai, me te he whai hua i runga i ngā rauemi pai e kore e taea te wehea i te katoa i nga tikanga tikanga.

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TONO o TRIBOELECTROSTATIC Belt wehenga

Fly Ash

Ko te triboelectrostatic hangarau whitiki wehenga i tuatahi tono industrially ki te tukatuka o rere ngingiha waro pungarehu i roto i 1995. Hoki te tono pungarehu rere, kua te hangarau kua whai hua i roto i te wehe matūriki waro i te ngingiha otikore o waro, i te matūriki aluminosilicate kohuke waiwai i roto i te pungarehu rere. Ko te hangarau kua mauihaa i roto i te faatupu hangarua o te flyash kohuke-taonga rite te whakakapinga sima i roto i te hanga raima. Mai 1995, 19 Kua whakawehe whitiki triboelectrostatic mahi i roto i te USA, Canada, UK, ko Poland, tukatuka i runga i 1,000,000 tana o rere pungarehu tau. Ko te hangarau he hoki inaianei i roto i Asia ki te whakawehe tuatahi tāuta i roto i South Korea tenei tau. whakarārangitia te hītori ahumahi o te wehenga rere pungarehu i roto i Ripanga 1.

ripanga 3. tauira, māvaé kohuke whakamahi wehenga whitiki triboelectrostatic

Kua Whakamahi o te whakawehe whitiki triboelectrostatic kua whakaatu ki te beneficiate tōtika maha ranunga kohuke. Mai taea te whakawehe tukatuka rauemi ki te rahi matūriki i pā ana ki 300 μm ki iti iho i te 1 μm, a he whai hua hoki e rua tuuraa me ngā rauemi conductive te wehenga triboelectrostatic, te hangarau nui atu te whānuitanga o te rauemi e hāngai ana ki runga i ngā whakawehe hiko tikanga. Mai te mea katoa maroke te tukanga triboelectrostatic, whakamahi o reira faaore te hiahia mō te whakamaroke rauemi me te whāwhā ururua wai i tukanga tēnei waka.

Tuhinga o TRIBOELECTROSTATIC Belt wehenga

Tauritenga ki tikanga Flotation mō te Barite

I whakahau ano he ako utu whakatairite i te STET me whakahaere e Soutex Inc. Soutex Ko te kamupene engineering hāngai Quebec Canada ki wheako whānui i roto i rua tēnei waka maku, me te hiko te aromātai tukanga wehenga me te hoahoa. whakaritea te ako te whakapaipai me te whakahaere utu o triboelectrostatic tukanga whitiki wehenga ki tēnei waka pahuka tikanga mo te beneficiation o te barite ore iti-kōeke. hangarau rua whakapai ake i te barite i tango o totoka kiato iti, te nuinga kiripaka, ki te whakaputa i te American Petroleum Institute (API) barite kōeke kōhao ki SG nui ake i 4.2 g / ml. hāngai hua tēnei waka i runga i ngā akoranga whakamätau tipu whakahaere e te Indian National Mettalurgical Laboratory "NML (2004)". hāngai hua wehenga whitiki Triboelectrostatic i runga i ngā akoranga whakamätau tipu mā te whakamahi i tokahuke kai rite. Ko te ako ōhanga whakatairite ngā whanaketanga flowsheet, rauemi me te pūngao pauna, nui whakarahinga taputapu me te faahitiraa mo e rua tēnei waka me ngā tukanga whitiki wehenga triboelectrostatic. Ko te pūtake mō ngā flowsheets e rua ko te taua, tukatuka 200,000 t / y o kai barite ki SG 3.78 ki te whakaputa i 148,000 t / y o kōhao kōeke hua barite ki SG 4.21 g / ml. E kore te tata tukanga tēnei waka i ngā tetahi utu mo te wai tukanga, ranei maimoatanga wai.

i hanga Flowsheets e Soutex mo te tukanga tēnei waka barite (Figure 6), me te tukanga wehenga whitiki triboelectrostatic (Figure 7).

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Figure 6 tukanga tēnei waka Barite flowsheet

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Figure 7 Barite whitiki triboelectrostatic flowsheet tukanga wehenga

Theses flowsheets kore e whakauru i te pūnaha raw ore kuru, i te mea noa ki hangarau e rua. Whāngai huri hoki te take tēnei waka rite kei te whakamahi i te mira penupenu pōro mākū ki saikolone classifier. Whāngai huri hoki te take whitiki wehenga triboelectrostatic rite kei te whakamahi i te maroke, mira takai poutū ki classifier hihiri wāhi.

Ko ohie atu i tēnei waka te flowsheet whitiki wehenga triboelectrostatic. tutuki wehenga whitiki Triboelectostatic te i roto i te wā kotahi, kahore te tua o tetahi tauhohenga matū, whakaritea ki te toru-atamira tēnei waka ki te waikawa hinu whakamahia rite he kaikohi mō barite me te konutai magnesium rite te depressant mo te gangue takawai. Kei te tāpiri hoki te flocculant rite te kaiwhakahohe mo thickening i roto i te take barite tēnei waka. hiahiatia No taputapu dewatering me whakamaroke te mo te wehenga whitiki triboelectrostatic, whakaritea ki thickeners, poka tātari, me dryers hurihuri hiahiatia hoki te tukanga tēnei waka barite.

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WHAKAPUAKANGA

1.Blin, P & Dion-Ortega, He (2013) High, me te maroke, CIM Magazine, vol. 8, kahore. 4, pp. 48-51.

2.Elder, J. & yan, E (2003) eForce.- whakatupuranga Hōu o whakawehe hiko mo te ahumahi kohuke onepu, Taumaha Minerals Conference, Johannesburg, Tonga Institute o Mining me Metallurgy Awherika.

3.Manouchehri, H, Hanumantha Roa,K, & Foressberg, K (2000), Arotake o Methods Separation hiko, wāhanga 1: āhuatanga taketake, kohuke & Processing Metallurgical, vol 17, kahore. 1 pp 23 - 36.

4.Manouchehri, H, Hanumantha Roa, K, & Foressberg, K (2000), Arotake o Methods Separation hiko, wāhanga 2: Whakaaro Practical, kohuke & Processing Metallurgical, vol 17, kahore. 1 pp 139- 166.

5.Searls, J (1985) hopi, Chapter i roto i Facts kohuke me Raruraru: 1985 Edition, United States Bureau o Mines, Washington DC.

6.Berthon, R & Bhicr, M, (1975) Wehewehenga hiko o hopi tokahuke, Patent United States # 3,885,673.

7.rama, L, Beier, P, & Stahl, ahau (2005) Separation hiko, Wiley-VCH Verlag, GmbH & Co.

8.kīanga, F (1962) wehenga hiko o potakataka Materials, US Bureau o Mines, pānui 603.

9.kīanga, F (1964), Pretreatment o kohuke mō te wehenga hiko, US Patent 3,137,648.

10.Lindley, K & Rowson, N (1997) āhuatanga faaineineraa Whāngai e pā te tōtika o te wehenga hiko, Separation autō, me te hiko, vol 8 pp 161-173.

11.Inculet, ahau (1984) Separation Mineral hiko, Electrostatics ko hiko Applications Rangatū, Rangahau Studies Press, Ltd, John Wiley & tama, Inc.

12.Feasby, D (1966) Free-Hinga hiko Separation o Phosphate me konupāhiko korakora, Minerals Rangahau Laboratory, Labs Nama. 1869, 1890, 1985, 3021, a 3038, pukapuka 212, Pūrongo Fakalakalaka.

13.Stencel, J & Jiang, X (2003) Transport whāhauhau, Triboelectric Beneficiation mo te Florida Phosphate Ahumahi, Florida Institute o Research Phosphate, tānga No. 02-149-201, Hakihea.

14.Manouchehri, H, Hanumantha R, & Foressberg, K (2002), Triboelectric Akona, āhuatanga Electrophysical a hiko Beneficiation Pümanawa o matū, Tukinotia wherepāra, te kiripaka, me Wollastonite, Separation autō, me te hiko, vol 11, kahore 1-2 pp 9-32.

15.tārewa, J, whakangahau, M, & Bruwer, J (2007) Mana o ngā pānga mata i runga i te wehenga hiko o te zircon me rutile, Ko te 6 International Taumaha Minerals Conference, Te Institute African Southern o Mining me Metallurgy.

16.Celik, M a Yasar, E (1995) Pānga o te Temperature me poke i wehewehenga hiko o pūtiwha Materials, kohuke Engineering, vol. 8, kahore. 7, pp. 829-833.

17.kīanga, F (1947) Notes i runga i Drying mo hiko Separation o matūriki, LOVE Tec. pāparakāuta 2257, Whiringa.

18.NML (2004) Beneficiation o barite kōeke iti (hua whakamätau tipu), Pūrongo whakamutunga, Laboratory Metallurgical Motu, Jamshedpur India, 831 007

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