Yuav ua li cas ua cov tin ore nrog lub ntiajteb txawj nqus sib cais?
Lub ntiajteb txawj nqus sib cais txheej txheem rau Tin Ore
Lub ntiajteb txawj nqus sib cais yog qhovfeem ntau siv thiab kev siv nyiaj txiagrau kev ua cov cassiterite (tin ore), raws li cassiterite muaj qhov tshwj xeeb lub ntiajteb txawj nqus (6.8–7.0) thiab qhov sib txawv loj ntawm gangue minerals (xws li quartz, feldspar, nrog SG ≈ 2.6–2.7). Hauv qab no yog daim ntawv ua tiav, cov tswv yim sib cais sib cais ntws.
1. Ore Crushing & Sib Tsoo (Liberation Stage)
Lub hom phiaj: Ua kom tag nrho cov kab mob cassiterite los ntawm gangue yam tsis muaj tshaj - tsoo.
Thawj crushing: Lub puab tsaig crusher, txo khiav- ntawm- kuv cov ore rau< 20 mm
Secondary crushing: Lub khob hliav qab crusher lossis rauj crusher rau< 3–5 mm
Sib tsoo: Pob zeb / pas nrig zeb, grind rau0.074-2 hli(lub ntsiab grain loj ntawm cassiterite)
Kev faib tawm: Spiral classifier los yog hydrocyclone los tswj particle loj, tsis txhob sliming
2. Desliming (Qhov tseem ceeb ntawm kev tiv thaiv kev poob)
Tin tau yooj yim poob hauv slime. Tshem cov av nkos ua ntej:
Sivdesliming screen, hydraulic classifier, los yog cyclone
Tshem tawm slime <20 μm (los yog <37 μm)
Slime tuaj yeem ua tiav los ntawm kev tuav lub rooj lossis centrifugal concentrator yog tin qib siab
3. Kev sib cais theem
(1) Coarse Particle Gravity Separation (2-20 hli)
Khoom siv:Jig Tshuab
Muaj nuj nqi: Rov qab coarse-grained cassiterite, muab pov tseg loj gangue ntxov
Hom concentrate qib: tuaj yeem ncav cuag30-50% Sn
(2) Kev sib cais nruab nrab (0.1-2 hli)
Khoom siv:Kauv concentrator / kauv chute
Qhov zoo: Muaj peev xwm loj, tus nqi qis, haum rau huab hwm coj roughing
Khoom siv: Rough tin concentrate + middles + tailings
(3) Fine Particle Cleaning (0.037-0.1 hli)
Khoom siv:6S co rooj(cov khoom siv tseem ceeb rau tin ore)
Muaj nuj nqi: High-kev sib cais, ua kom pom tseeb kawg
Qhov kawg tin concentrate qib: Feem ntauNtau dua lossis sib npaug li 60% Sn(tuaj yeem ua tau raws li kev xav tau smelting)
(4) Ultra-zoo Particle (Slime) Kev Kho Mob (< 37 μm)
Yog hais tias slime muaj tin:
Centrifugal concentrator (Falcon, Knelson yam)
Fine co rooj
Slime table concentrator
4. Hom Kev Sib Nqus Sib Nqus Sib Nqus Flow
Raw ore → Puab tsaig crusher → Lub khob hliav qab crusher
Kev tshuaj ntsuam → Sib tsoo → Classification
Desliming
Jigging (coarse) → Kauv (roughing) → Shaking table (tu)
Thaum kawg tin concentrate + tailings
5. Lub ntsiab Technical Parameters
Pub loj:0.037-2 hlizoo tshaj plaws rau kev sib cais ntawm lub ntiajteb txawj nqus
Qhov tshwj xeeb lub ntiajteb txawj nqus sib txawv> 1 yog xav tau rau kev sib cais zoo
Shaking table stroke: 8-12 hli, zaus: 300-400 zaug / min
Rov qab tus nqi ntawm lub ntiajteb txawj nqus sib cais: Feem ntau70–85%(siab dua rau coarse grain)
6. Ua ke txheej txheem thaum tsim nyog
Yog hais tias ore yog complex:
Lub ntiajteb txawj nqus + sib nqus sib cais (tshem tawm cov zaub mov hlau)
Lub ntiajteb txawj nqus + flotation (rau intergrown tin -sulfide ore)
Lub ntiajteb txawj nqus + sib nqus + hluav taws xob sib cais (rau siab -purity tin concentrate)
