Maitiro ekugadzirisa Sodium Cyanide Dosage zvinoenderana neOre Particle Size?

Mundima yekugadzira mineral, kunyanya mu cyanidation nzira yegoridhe nesirivha kutorwa, kugadzirisa Sodium Cyanide chipimo chemushonga zvinoenderana nekukura kweore kwakakosha pakugadzirisa leaching kunyatsoshanda uye kuderedza mari yekugadzira. Ichi chinyorwa chine chinangwa chekupa gwara rakazara rekuita zvigadziriso zvakadaro.

Iyo Kufurira Mechanism yeOre Particle Saizi paCyanidation Reaction

Surface Area uye Reaction Kinetics

Finer ore particles ane hombe chaiyo nzvimbo. Rini sodium cyanide mhinduro inopindirana neore, nzvimbo yakakura yepamusoro inobvumira mamwe mapoinzi ekusangana pakati pe cyanide ion uye zvicherwa zvakanangwa (segoridhe kana sirivha). Zvinoenderana neiyo reaction kinetics theory, iyo reaction rate inoenzanirana nepamusoro penzvimbo yezvinoita. Semuenzaniso, muongororo yegoridhe cyanidation, zvakaonekwa kuti apo saizi yeore yakaderedzwa kubva payakakora kusvika -38 μm nereshiyo yemukati ye75%, chiyero chegoridhe chakawedzera zvakanyanya. Nezvikamu zvakatsetseka, maatomu egoridhe akawanda ari pamusoro anoratidzwa kune cyanide ions, zvichifambisa kuita kunoshanda.

Coarser particles, kune rumwe rutivi, ane nzvimbo diki yepamusoro inowanikwa kuti iite. Iyo cyanide ion inokwanisa chete kuita nekunze kweiyo zvidimbu, uye kupararira kweiyo cyanide mukati memukati meiyo yakakora kunonoka. Izvi zvinotungamira kune yakaderera chiyero chekuita uye kusakwana leaching yemaminerari anonangwa mukati mezvimedu.

Diffusion Barrier

Kana ari maore akacheneswa, chinhambwe chinoda kupararira neiyo cyanide kuti isvike kune zvicherwa chipfupi. Izvi zvinoderedza kupararira kwekudzivirira uye zvinogonesa kuita nekukurumidza. Sezvo saizi ye ore ichiwedzera, nzira yekupararira ye cyanide ions kuburikidza ne porous chimiro che ore particles inova yakareba. Kuvapo kwemaminerari e gangue muzvikamu zvinogonawo kuita sechivharo chekuparadzira. Semuyenzaniso, kana paine akaturikidzana ezvicherwa zve-non-reactive gangue zvakatenderedza goridhe - zvine zvicherwa muchikamu chakakasharara, zvinotora nguva yakareba kuti ion cyanide ipinde uye kuita negoridhe, zvichikonzera kudzikira kwekudzikira.

Kuyerwa kweOre Particle Size

Sieving Analysis

Sieving inzira yakajairika uye yakatwasuka yekuona ore particle size. Seti yemasefa akajairwa ane masaizi akasiyana mesh anoshandiswa. Sample ore inoiswa pamusoro pesefa yestack, uye ipapo staki yacho inozununguswa nemichina kwenguva yakati. Zvimedu zvinopfuura nepasefa imwe neimwe zvinounganidzwa uye zvinoyerwa. Nekuverenga huwandu hwehuwandu hwezvimedu zvakachengetwa pasefa yega yega, kugoverwa kwesaizi yesamu yeore inogona kuwanikwa. Semuyenzaniso, muchigadzirwa chegoridhe chekugadzira ore, kana simbi yakapepetwa nepakati pemasefa ane mesh size 200. 325. uye 400. chikamu chezvikamu zviduku kudarika mesh size imwe neimwe inogona kugadziriswa, iyo inobatsira mukunzwisisa kunaka kwesimbi.

Laser Diffraction Particle Size Analysis

Iyi inzira yepamusoro uye yakarurama. Laser diffraction analyzers inoshanda zvichibva pamusimboti wekuti kana danda relaser richipfuura nepakaparadzirwa particle system, zvimedu zvinoparadzira mwenje welaser. Kona uye kusimba kwechiedza chakapararira zvine chekuita nekukura kwechidimbu. Nekuyera mwenje wakapararira, chiridzwa chinogona kuverenga kugoverwa kwesaizi ye ore sampuli. Inogona kupa ruzivo rwakadzama nezvese particle size renji, kusanganisira zvimedu zvakanakisa zvingave zvakaoma kuyera nemazvo nekusefa. Iyi nzira inonyanya kubatsira kana uchibata neores ine huwandu hwakasiyana hwehukuru hwezvikamu kana kana yakakwirira-chaiyo kuyerwa kunodiwa pakugadzirisa cyanidation maitiro.

Nheyo uye Nzira dzekugadzirisa Sodium Cyanide Dosage

General Misimboti

Proportional Relationship mukati meImwe Range

Kazhinji, mukati mehumwe huwandu, huwandu hwe Sodium cyanide yakawedzerwa inoenzana nepamusoro penzvimbo yezvinyorwa zve ore. Sezvo iyo ore particle size inova yakanaka (yakakura pamusoro penzvimbo), yakawanda sodium cyanide inodiwa kuti ive nechokwadi chekuita zvakakwana nemaminerari anotangwa. Zvisinei, hukama uhwu hahuna mutsara nekusingaperi. Kana huwandu hwesodium cyanide huchipfuura imwe nhanho, iyo leaching inoshanda inogona kusawedzera zvakanyanya, uye inokonzeresa kuparara kwemakemikari uye kuwedzera mari yekugadzira.

Ore Hunhu Kufungwa

Mhando dzakasiyana dze ores dzine akasiyana makemikari anoumbwa uye zvimiro. Mamwe ores anogona kunge aine zvicherwa zvinodya cyanide ions, senge mamwe maminerari e sulfide. Mumamiriro ezvinhu akadaro, kunyangwe kune imwechete saizi diki, yakawanda sodium cyanide inogona kudiwa kuti uwane inodiwa leaching maitiro. Semuenzaniso, kana ore ine chikamu chepamusoro che pyrite, pyrite inogona kuita ne cyanide ions uye oksijeni mumhinduro, ichidya cyanide. Saka, iyo cyanide dosage inoda kugadziridzwa zvinoenderana neiyo chaiyo mineral inoumbwa neore.

Kugadzirisa Nzira

Kuedzwa kweLabhoritari

Pamberi pekugadzirwa kukuru kwemaindasitiri, bvunzo dzemurabhoritari dzinofanirwa kuitwa. Gadzirira ore samples ane masaizi akasiyana siyana kuburikidza nekukuya nekusefa. Wobva waitisa cyanidation leaching bvunzo pane aya masampula ane akasiyana dosages e sodium cyanide. Yera mwero wekudonha wezvicherwa zvakanangwa (semuenzaniso, goridhe kana sirivheri) pasi pemamiriro akasiyana. Nekuongorora iyo data yekuyedza, ita hukama pakati peore particle size, sodium cyanide dosage, uye leaching rate. Semuenzaniso, kune chicherwa chegoridhe chine saizi ye -200 mesh (inenge 74 μm), bvunzo yemurabhoritari inogona kuratidza kuti kana sodium cyanide dosage yawedzerwa kubva pa1 kg/t kusvika 2 kg/t, goridhe reLeaching rate rinowedzera kubva pa70% kusvika 85%, asi richiwedzera kuwedzera dosi kusvika pa3 kg/t kungowedzera 87% leaching. Iyi data inogona kushandiswa sereferensi yekugadzirwa kwemaindasitiri.

Online Monitoring uye Kugadziriswa muIndasitiri Kugadzirwa

Mukugadzirwa kwemaindasitiri, online particle size analyzers inogona kuiswa kuti irambe ichitarisisa saizi yeore inopinda mucyanidation process. Zvichienderana nehukama hwakagara hwasimbiswa pakati pesaizi saizi uye sodium cyanide dosage kubva murabhoritari bvunzo, otomatiki dosing system inogona kugadziriswa munguva chaiyo. Semuenzaniso, kana iyo online particle size analyzer ikaona kuti avhareji saizi yeore yave yakatsetseka, iyo otomatiki dosing system inogona kuwedzera iyo sodium cyanide dosage zvichienderana kuchengetedza yakakwana leaching kunyatsoita.

Mukupedzisa, kugadzirisa iyo sodium cyanide dosage maererano neore particle size ibasa rakaoma asi rinokosha mukuita cyanidation. Nekunzwisisa maitiro ekuita kwesaizi yeore particle size, kunyatsoyera ukuru hwechidimbu, uye nekutevera misimboti yakakodzera yekugadzirisa uye nzira, indasitiri yekugadzira zvicherwa inogona kuvandudza mashandiro ecyanidation leaching, kuderedza kushandiswa kwemakemikari, uye kuwedzera huwandu hwehupfumi uye nharaunda mabhenefiti.