Hoʻomaopopo hohonu i ke kaʻina hana o ka pauka corundum brown
Ke kū nei i ʻekolu mau mika mai ka umu ahi arc, ʻo ka nalu wela i ʻōwili ʻia i ke ʻala o ka metala i puhi ʻia e paʻi iā ʻoe i ka maka - ʻo ka slurry bauxite ma mua o 2200 degere i loko o ka umu e ʻōwili ana me nā ʻulaʻula gula. Holoi aʻela ka haku kahiko ʻo Lao Li i kona hou a ʻī maila: “E nānā?corundum ʻeleʻele ʻo ka mea e puka mai ana e like me ka palupalu e like me nā kuki. ʻO kēia ipu hao o ka "mea hoʻoheheʻe ʻia" ka mea mua o ka hānau ʻana o ka pauka corundum brown.
1. Hee: ʻO ka hana nui o ka lawe ʻana i ka "jade" mai ke ahi
Ua kahakaha ʻia ka huaʻōlelo "fierce" i loko o nā iwi o ka corundum brown, a ua hoʻomaʻemaʻe ʻia kēia ʻano i loko o ka umu uila.
ʻO nā mea hana e like me ka lāʻau lapaʻau: base bauxite (Al₂O₃>85%), anthracite reducing agent, a me ka hao filings e pono e pipi me he "matchmaker" - me ka ole ia e kokua i ka hehee ana, aole hiki ke hoomaemae ia na silicates haumia. ʻO nā puke hoʻohālikelike o nā hale hana kahiko ma ka ʻāina ʻo Henan ua pau loa: "ʻO ka nui o ka lanahu ke ʻano o ke kalapona kiʻekiʻe a me ka ʻeleʻele, ʻoiai ʻo ka liʻiliʻi o ka hao ʻo ia hoʻi ka ʻōpala mānoanoa a me ka agglomeration"
ʻO ka mea huna o ka umu hoʻoheheʻe ʻia: Hoʻoliʻi ʻia ke kino umu ma kahi kihi 15-degere e ʻae ai i ka hoʻoheheʻe ʻana i ka stratify maoli, ʻo ka papa lalo o ka alumina maʻemaʻe crystallizes i loko o ka corundum brown, a ʻo ka papa luna o ka ferrosilicon slag e kāʻili ʻia. Ua hoʻohana ka haku kahiko i ka ʻohi lōʻihi no ka ʻoki ʻana i ke awa hōʻailona, a ua maʻalili nā kulu hoʻoheheʻe i hoʻoheheʻe ʻia a ʻeleʻele ʻeleʻele ka ʻāpana keʻa: "Ua pololei kēia kala! ʻO ke kukui polū e hōʻike ana he kiʻekiʻe ka titanium, a ʻo ke kukui hina ʻo ia hoʻi ʻaʻole i wehe loa ʻia ke silika"
ʻO ka hoʻomaloʻo wikiwiki e hoʻoholo i ka hopena: ninini ʻia ka heheʻe i loko o kahi lua hohonu a ninini ʻia me ka wai anuanu e "pahū" i mau ʻāpana, a hana ka mahu wai i kahi kani popcorn-like. ʻO ka hoʻomaloʻo wikiwiki e hoʻopaʻa i nā hemahema o ka lattice, a ʻo ka paʻakikī he 30% ʻoi aku ka kiʻekiʻe ma mua o ka hoʻoluʻu kūlohelohe - e like me ke kinai ʻana i ka pahi kaua, ʻo ke kī he "wikiwiki"
2. ʻO ke kuʻi ʻana a me ka hana ʻana: ʻo ke ʻano o ka hoʻohua ʻana i nā "kānaka paʻakikī"
ʻO ka paʻakikī o ka poloka corundum ʻeleʻele ma waho o ka umu ua kokoke i kēlādaimana. Nui ka pilikia e hoʻololi iā ia i "koa elite" pae micron:
ʻO ka wehe ʻinoʻino o ka ʻauwae
ʻO ka pā kīʻaha hydraulic "crunches" a me ka pahu basketball-size i haki ʻia i walnuts. Kuhikuhi ka mea lawelawe ʻo Xiao Zhang i ka pale a hoʻopiʻi: "I ka manawa hope i hui pū ʻia kahi pōhaku ʻaʻai, a ua haki ka ʻāwae.
ʻO ka hoʻololi ʻana i ka wili kinipōpō
ʻO ka wili pōleʻa i hoʻopaʻa ʻia me nā pōhaku pōhaku, a ʻo nā kinipōpō kila e pā i nā poloka e like me ka poʻe hula hoʻomāinoino. Ma hope o 24 mau hola o ka wili mau ʻana, huʻi mai ka pauda ʻeleʻele ʻeleʻele mai ke awa hoʻokuʻu. "Aia kahi hoʻopunipuni ma ʻaneʻi," kāʻei ka ʻenehana i ka papa hoʻokele: "Inā ʻoi aku ka wikiwiki o ka 35 rpm, e hoʻoheheʻe ʻia nā ʻāpana i loko o nā nila; inā ʻoi aku ka liʻiliʻi ma mua o 28 rpm, ʻoi aku ka ʻoi o nā ʻaoʻao."
ʻO ka ʻoki kino ʻo Barmac
Hōʻike ka laina hana kiʻekiʻe i kāna kāleka pu - Barmac vertical shaft impact crusher. Paʻi ʻia ka mea e ka hui ʻana iho ma lalo o ke kaʻa o ka rotor kiʻekiʻe, a ʻo ka pauka micro i hana ʻia e like me nā ʻiliʻili muliwai. ʻO kahi hale hana huila wili ma Zhejiang Province i ana ʻia: no ka kikoʻī like o ka pauka micro, ʻo ke ʻano kuʻuna he 1.75g/cm³ ka nui, aʻo ke ʻano Barmac he 1.92g/cm³! Huli aʻela ʻo Mr. Li i ka laʻana a kaniʻuhū: "I ka wā ma mua, ua hoʻopiʻi mau ka hale hana huila wili no ka maikaʻi ʻole o ka wai o ka pauda, akā i kēia manawa ke hoʻopiʻi nei ʻo ia ka wikiwiki o ka hoʻopiha ʻana."
3. Ka helu ʻana a me ka hoʻomaʻemaʻe: ʻimi pololei i ka honua o microns
ʻO ka hoʻokaʻawale ʻana i nā ʻāpana 1/10 o ka mānoanoa o ka lauoho i nā māka like ʻole he kaua o ka ʻuhane o ke kaʻina hana:
ʻO ka mea pohihihi o ka hoʻokaʻawale ʻana i ka ea
0.7MPa kaomi ea e holo wikiwiki i loko o ke keʻena hoʻohālikelike me ka pauka, a ʻo ka wikiwiki impeller e hoʻoholo i ka "laina komo": 8000 rpm pale mai W40 (40μm), a me 12000 rpm intercepts W10 (10μm). "Makemake nui au i ka haʻahaʻa haʻahaʻa", kuhikuhi ka luna o ka hale hana i ka hale kiaʻi dehumidification: "I ka mahina i hala aku nei, ua hoʻokuʻu ka condenser i ka fluorine, a puʻupuʻu ka micro pauda a hoʻopaʻa ʻia i ka paipu.
ʻO ka pahi mālie o ka hoʻohālikelike hydraulic
No nā pauka ultrafine ma lalo o W5, lilo ke kahe wai i mea hoʻohālikelike. Hoʻokiʻekiʻe ka wai maʻemaʻe i loko o ka bākeke māka i ka pauka maikaʻi ma kahi kahe kahe o 0.5m/s, a noho mua nā ʻāpana koʻikoʻi. Nānā ka mea hoʻohana i ka mika turbidity: "Inā ʻoi aku ka wikiwiki o ka kahe kahe ʻana, e pakele ka hapalua o ka pauka W3; inā he 0.1m / s ka lohi, e hui pū ʻo W10 a pilikia."
ʻO ke kaua huna o ka hoʻokaʻawale magnetic a me ka wehe ʻana i ka hao
Lawe aku ka wili magnetic ikaika i nā waihona hao me ka ikaika o ka 12,000 gauss, akā ʻaʻohe mea hiki ke kū i nā kiko hao oxide. ʻO ka hana hoʻopunipuni a ka hale hana Shandong: e hoʻomoʻa mua me ka waika oxalic ma mua o ka pickling, e hoʻohuli i ka Fe₂O₃ paʻakikī i loko o ka ferrous oxalate hiki ke hoʻoheheʻe ʻia, a hāʻule ka ʻike hao haumia mai 0.8% a i 0.15%.
4. Pickling a calcining: ka "hanau hou" o nā abrasives
Inā ʻoe makemakemicropowder corundum brownno ka pale ʻana i ka hoʻāʻo ʻana i ka huila wili wela, pono ʻoe e hele i ʻelua mau hoʻokolohua ola a me ka make:
Acid-base dialectics of pickling
ʻO nā pōpō i loko o ka pahu waiʻakika hydrochloric e hoʻoheheʻe i nā mea haumia metala, a ʻo ka hoʻomalu ʻana e like me ka hele ʻana ma ke kaula paʻa: ʻaʻole hiki i ka 15% ke hoʻomaʻemaʻe i ka ʻōpala, a ʻoi aku ka nui ma mua o 22% e corrodes i ke kino alumina. Ua paʻa ʻo Lao Li i kahi pepa hoʻāʻo PH e hāʻawi i ka ʻike: "I ka wā e hoʻokaʻawale ai me ka holoi alkaline, pono ʻoe e kuʻi pololei i ka PH=7.5. ʻO ka waikawa e hoʻoulu ai i nā burrs ma nā kristal, a ʻo ka alkaline e hoʻoneʻe i ka ʻili o nā ʻāpana i ka pauka."
ʻO ka puzzle wela o ka calcination
Ma hope o ka calcination ma 1450 ℃ / 6 mau hola i loko o kahi kiln rotary, hoʻoheheʻe ʻia nā mea haumia ilmenite i ka pae rutile, a piʻi ka wela o ka micropowder e 300 ℃. Eia nō naʻe, ma muli o ka ʻelemakule o ka thermocouple o kekahi hale hana, ua ʻoi aku ka mahana maoli ma mua o 1550 ℃, a ʻo nā pauka micro a pau i puka mai i waho o ka umu i hoʻopaʻa ʻia i loko o "nā keke sesame" - 30 mau toni o nā mea i ʻoki pono ʻia, a ua pilikia loa ka luna o ka hale hana a hehi kona mau wāwae.
Ka hopena: ʻoihana aesthetics ma waena o nā millimeters
I loko o ka hale hana ahiahi, e uwē mau ana nā mīkini. Hoʻopau ʻo Lao Li i ka lepo ma kona mau lole hana a ʻōlelo ʻo ia: "Ma hope o ka hana ʻana i kēia ʻoihana no 30 mau makahiki, ua maopopo iaʻu ʻo ka micro powders maikaʻi ʻo '70% hoʻomaʻemaʻe a me 30% ola' - ʻo nā meaʻai ke kumu, ʻo ka ʻohi ʻana ma muli o ka ʻike, a ʻo ka helu ʻana ma muli o ka akahele. Mai ka bauxite a hiki i ka nano-scale micro powders, hoʻololi mau ka ʻenehana i nā kikowaena ʻekolu: ka maʻemaʻe (pickling a me ka wehe ʻana i ka haumia), morphology (Barmac shaping), a me ka nui o nā ʻāpana (ka helu pololei).