Maxaa Muhiim u ah Cabbirka Qaabka Partikelka ee Cyanidation-ka Dahabka

Summary: Baro sida xakamaynta qaababka qaybta ay saameyso waxtarka cyanidation-ka dibiiga. Sahamin xiriirka u dhexeeya sii deynta qaybta, aagga dusha sare, iyo kinetikska dheecaan kiimikada....

In hydrometallurgy dahabka, cyanidation waa habka ugu badan ee loo isticmaalo soo kabashada dahabka ka yimaada macdanta. Hadday tahay in lagu farsameeyo barar (heap leaching), Carbon-in-Pulp (CIP), ama Carbon-in-Leach (CIL) nidaamyo, waxtarka soo kabashada dahabka iyo kharashaadka guud ee habka waa kuwo si weyn u xakameynaya hal beddel muhiim ah: cabbirka qaybooyinka.

Controlling particle size during crushing and grinding is not merely a mechanical step — it directly determines how much gold is exposed to cyanide solution, how quickly leaching occurs, and how much energy, reagents, and time the entire operation consumes. This article explains scientifically why particle size is a defining factor in gold cyanidation performance, and how optimal grinding and crushing practices maximize recovery while minimizing operational expenses.

1. Mashiinka Cyanidation-ka: sababta Aagga uu u Go'aamiyo Soo kabashada

Hiddo-maalinta dahabka ah waa fal-celin kiimiko oo dusha sare ah. Xalalka cyanide-ka wuxuu kaliya ku milmi karaa dahabka uu si jireed u taaban karo.

Marka laga hadlayo macdanta dahabka adag ee ugu muhiimsan (meesha wereegta dahabka si qoto dheer ugu dhex jirto gudaha quartz ama sulfide), qaybaha waaweyn ee dhagaxa ayaa haysta macdanta qaali ah inay "xirmato" gudaha.

• Dilka Kaadida Yar (Qaybo Waaweeyn) Haddii macdanta la jajabiyay ay noqoto mid aad u cidhiidhi ah, xalashiyaha ciraysta ma dhex gali karo qaab-dhismeedka dhagaxa. Dahamka dahabku wuxuu ku sii nagaadaa gudaha, waxaana la tuuraa sidii qashinka.
• Saaridda Wanaagsan (Qodxooyinka Yar): Marka aad dhagaxa u dhigto qayb aad u fiiqan oo si sax ah loo maamulo, waxaad jabisaa matix-ka quartz-ka, taas oo muujinaysa dusha dahabka ee microscopy-ga oo u nugul xalalka cyanide-ka. Muujintan waxaa looga yaqaan Birta sida "Heerka Sii Daynta.

2. Istiraatiijiyadda "Wax Ka Dhufashada Badan, Culeyska Hoose ee Dhinaca Hoose

Taariikh ahaan, hawl-wadayaasha qodooyinkan waxay ku tiirsanaan jireen habka loo qaato waxyaabaha laga soo saaro si loo dhammeystiro shaqada culus ee dhimista. Si kastaba ha ahaatee, tani waa hab tamar badan oo qaali ah.

Hababka ugu wanaagsan ee casriga ah ee wax soo saarka birta waxay dhiirigelinayaan mabda'a "Jabinta Badan, Culeyska Hoos yimaada Qaybta Hoose." Jabintu waxay si weyn uga awood badan tahay hababka kale ee dhimista tamarta. Iyada oo kor loo qaadayo warshaddaada jaban si ay u soo saarto badeecad aad u khafiifsan oo badan oo waafaqsan, tusaale ahaan, in la dhimayo badeecada ugu dambeysa ee jabinta laga bilaabo 20mm ilaa 10mm ama 12mm, waxaad si xawli ah u kordhisaa aagga dusha sare ee macdanta ka hor inta aysan galin weelasha dheecaanka.

3. Naqshadeynta Wareegga Dheecaanka Qashinka ee Dhagaxa Dahabiga ah

Si loo gaaro cabirka ugu yar ee shudbadda ah ee loogu baahan yahay si loo helo xorriyad ugu badan iyada oo aan la burburin qalab weyn, warshaddu waa inay si xisaabeed loo nashqadeeyaa si ay u qabato macdanta dahabka adag, ee dhaawacoodu culus yahay.

Muunad 1: Qalalaasaha Ku Dajinta Ugu Horeysa (Awoodda Ugu Badan, Aan La Meghan)

Quartz-ka leh dahabku waa mid aad u xoog badan oo wax burburiya. Marxaladda ugu weyn waa in lagu qabtaa qallooc xoog leh oo qalalan. Waxay isticmaashaa cadaadis si ay u jajabiso dhagaxyo waaweyn si lagu kalsoonaan karo.

• Digniinta Injineerinka: Ha dhammaanin inaad isticmaasho mabdhlaha saameynta ah ee burburinta ugu weyn ee macdanta dahabka adag. Qoyaanka daran ee dhagaxa ayaa burburin doona furayaasha garaaca muddo saacado ah gudaheed, taasoo horseedaysa waqti khiyaan ah oo aan la aqbali karin iyo kharashyo dayactir oo qaali ah.

Wajiga 2 & 3: Qalloociinta Labaad iyo Saddexaad (Qiyaasinta Saxda ah)

Si loo gaadho ciddiyaha saxda ah ee quudinta ugu habboon ee cyanidation-ka ugu fiican, burburinta marxalado badan oo leh Kharibadaha Cone Hydraulic ayaa ah heerka warshadaha.

• Wiilashka qodista wuxuu si gaar ah loo qaabeeyey inuu wax ka qabto dhagaxyada adag ee adkaada. Iyadoo la adeegsanayo wiilashka qodista garaafyada saddex-geesoodka ah ee wadajira ee ku shaqeeya wareeg xidhan oo leh shaandho garaafyo gariirsan oo sax ah, waxaad xaqiijinaysaa in waxba ka baxsan seisinka jajista aysan ka gudbin.
• Naqshadani xirmo-xidhka ah waxay damaanad qaadaysaa badeecad si adag loo xakameeyo, oo tayo leh oo kordhinaysa muddada dusha sare ee dahabka ee la soo bandhigo ee xalalka cyanide-ka.

Aragti Degaanka: Hagaajinta Xorriyadda Aasiya Dhexe

Intii lagu guda jiray mashruuc hagaajin qalab oo dhawaan lagu qabtay macdanta dahabka heerka sare ah ee Bariga Dhexe, hawlwadeenku wuxuu la dhibtoonayey heerka soo kabashada oksaydhinta cusub ee xasilloon oo ah 82%.

Markii kooxda injineernimada SBM ay falanqaysay jadwalkooda socodka, waxay ogaadeen in heerka burburinta saddexaad uu waxqabadkiisu liito, taasoo ogolaatay in alaab ka weyn 18mm ay dhex maraan. Iyada oo la casriyeynta circuit-ka iyadoo la adeegsanayo shaandhada SBM oo leh qalab goynta Hydraulic Cone Multi-cylinder ah oo waxqabad sare leh iyo dib-u-habeynta shabakadaha shaandhada, waxaan yareynay cabbirka alaabta ugu dambeysa ee la burbursaday ilaa -12mm oo adag.

Yar oo fudud laakiin aad u wax ku ool ah dhimista cabbirka qaybaha waxay si weyn u hagaajisay heerka kala furfurka macdanta. Muddo hal bil gudaheed ah kadib casriyeynta, heerka soo kabashada dahabka guud ee warshaddu waxay kor u kacday 82% ilaa 89.5%, taasoo keentay koror weyn oo faa'iido nadiif ah leh iyadoo wax isdaba marsan hawlgalka la yareeyay.

Su'aalaha Iyo Jawaabaha Badanaa La Is Weydiiyo (FAQs)

Q1: Waa maxay cabirka qaybta ugu habboon ee dahabka cyanidation?

A: While it varies depending on the specific geology of the ore, most hard rock gold cyanidation processes require the ore to be reduced to a highly fine state (often 80% passing 75 microns) eventually. The goal of the crushing plant is to prepare the feed as fine as physically possible—typically reducing it to 10mm-12mm—to make the final liberation process highly efficient.

Waa maxay sababta aanan u isticmaalin mashiinka burburinta saameynta ah ee jajabinta ciidda dahabka ah ee hore?

A: Qodxo dahab ah, gaar ahaan marka lagu hayo quartz, wuxuu ka kooban yahay silica aad u badan, taas oo ka dhigaysa mid aad u ad adag. Gubaayooyinka garaaca waxay ku tiirsan yihiin saameyn kinetic ah oo xawaare sare leh oo leh biraha afuufka ah. Marka la farsameynayo macdanta adkaysiga leh, biraha afuufka ah waxay si gaar ah ugu ciriiri qabtaan si degdeg ah, taas oo keenta kharashyo dayactir oo badan. Gubaayo alxa ayaa ah ikhtiyaarka kaliya ee lagu kalsoonaan karo ee lagu burburinayo dhagaxa adag ee asaasiga ah, kaas oo adeegsada awood cadaadis ah.

Q3: Sidee bay qalabka qarsoon ee cirku ah u hagaajiyaa soo kabashada dahabka?

A: Deegaanka laxiriira xidhitaanka waxay dib ugu soo celiyaan beneath-kawaanka dhagaxa la burburiyay oo wali aad u weyn (ka badan) si loo mar kale u farsameeyo gudaha conveyor-ka. Shaandhaynta adag ee tani waxay hubisaa in 100% qalabka u socda geedi-socodka cyanidation uu waafaqsan yahay shuruudda cabbirka saxda ah, iyadoo laga hortagayo in dahabka "xidhan" uu soo dhex marayo oo uu luminayo ciidda dabada.

Kordhi Soo kabashada Dahabkaaga Maanta

Ha u ogolaan in shiddid aan waxtar lahayn ee burburinta uu qabsado faa'iidooyinkaaga gudaha dhagaxyaal aan faa'iido lahayn. Helitaanka cabbirka walxaha saxda ah ee cyanidation waxay u baahan tahay qalab burburin xoog leh oo si sax ah loo habeeyay.

La xiriir kooxda injineernimada SBM maanta si aad u hesho kormeer dhameystiran oo ku saabsan wareegga jajabka macdanta dahabkaaga. Waxaan kaa caawin doonaa inaad naqshadeyso xal jajab qolka xidhan ah oo dammaanad qaadaya siiidaynta macdanta ugu badan iyo heerka soo kabashada ugu sarreeya ee suuragalka ah.