Isiphetho:Le ndatshana inikeza ukuhlaziywa okujulile kwe-HPGR kanye ne-SAG mills, kugxilwe ikakhulukazi ekusebenzeni kahle kwamandla, izici zokusebenza, ukuphuma, uku maintenance, kanye nomthelela wabo ekukhululeni izinsimbi.

Ukuhlanganiswa kuyisinyathelo esibalulekile ekucubunguleni izinsimbi. Kuphakamisa kakhulu ukusebenza kahle kanye nezomnotho zokusebenza eziphansi ezifana nokuphosa, ukuhluza, nokuhlukaniswa ngesisekelo sokukhanya. I-communiton circuit iyona eyodwa ephezulu kakhulu yokusetshenziswa kwamandla enkampanini yokucubungula izinsimbi, ivamise ukubala ngaphezu kuka-50% wokusetshenziswa kwendawo jikelele kwamandla.

Ngokwesiko,Izinsiza zokupholisa ze-Semi-Autogenous Grinding (SAG)bezizoba yisiqalo semijikelezo yokupholisa eyinhloko ezimayini emhlabeni jikelele. Nokho, ngokwanda kwesidingo sezezimali ezisebenza ngcono futhi ezinzile,Izinsiza zokupholisa ezisezingeni eliphezulu (HPGR)zivela njengezinketho eziphumelelayo noma ezisizayo.

Le ndatshana ihlinzeka ngokuqhathaniswa okujulile kwe-HPGR kanye ne-SAG mills, kugxilwe kakhulu kumandla okusebenza, izakhiwo zokusebenza, ukuhamba, ukmaintenance, nokuthi zishintsha kanjani ukukhipha imayini. Ukuqonda lezi zinguquko kubalulekile kubanjiniyela bemayini nabaphathi bezimboni abafuna ukuthuthukisa imijikelezo yokupholisa, ukunciphisa izindleko zokusebenza, nokunciphisa umthelela wemvelo.

Semi-Autogenous Grinding (SAG) Mills

SAG mills zihluzo ezinkulu, eziyindilinga ezishintshashintshayo ezigcwele ingxenye ye-ore kanye nezinga elincane lokwenzeka kwe-Steel grinding media (amabhola). I-ore uqobo isebenza njengesithako sokugcwaliswa, ngakho-ke igama elithi “semi-autogenous.” Imechamical yokugaya ibandakanya ukuthinteka, ukuwa, nokuguguleka njengoba i-mill ijubane, igudule i-ore namabhola ukuze yehlise usayizi wezithako.

SAG mills zisetshenziswa kabanzi ekugayeni okuqala ngenxa yokwaziswa kwazo ukuphatha ama-tonnages amakhulu nokubeka izinhlobo ezahlukene ze-ore. Ngokuvamile, zilandelwa ngama-ball mills ezingeni elincane lokugaya.

sag mill

Izinsiza zokupholisa ezisezingeni eliphezulu (HPGR)

HPGR technology consists of two counter-rotating rolls that compress the ore bed under high pressure. The intense pressure causes micro-fractures and inter-particle compression, leading to size reduction. The rolls are designed to operate at pressures significantly higher than conventional compression crushers.

HPGR is recognized for its energy-efficient grinding and ability to improve downstream processes by producing a more uniform particle size distribution and enhancing mineral liberation.

hpgr mill

I-

Ukusetshenziswa kwamandla kuyenye yezindleko ezibaluleke kakhulu zokusebenza ekucutshungweni kwezinsiza.-

Ukusetshenziswa kwamandla kuma-SAG Mills

Ama-SAG mills adla amandla amaningi ngenxa yokuzungeza kwempahla enkulu ye-ore kanye nezinsiza zokugaya. Amandla anikezwa ngezinhlobo zokuthintana nokuhlakulela, kodwa ingxenye enkulu ilahlekile njengekheat, ukukhala, nokuhudula. Ngaphezu kwalokho, ama-SAG mills avame ukukproduka ukusabalala kwensimbi enkulu ngobukhulu bamagetsi, okunomthelela ekugayeni okungaphezulu nasekusetshenzisweni kwamandla okungalungile.

Ijwayelekile yokusetshenziswa kwamandla emigwaqo ye-SAG ihluka ngokuya ngobunzima be-ore, usayizi we-feed, kanye nomklamo we-mill kodwa ngokuvamile ibanga phakathi kuka-15 kuya ku-25 kWh ngonyaka we-ore owenziweyo.

Energy Use in HPGR

Ubuchwepheshe be-HPGR bufaka amandla okucindezela abangenisa ama-micro-cracks phakathi kwezinto, kudinga amandla amancane ukuze kufezwe ukuncishiswa kwesilinganiso esifunwayo. Izifundo zikhombisa ukuthi i-HPGR inganciphisa ukusetshenziswa kwamandla ngama-20% kuya kuma-40% uma kuqhathaniswa namadili e-SAG ukuze kufinyelelwe kubukhulu obufanele bokudlula nokukhiqiza.

Ukusebenza kahle kwamandla kwe-HPGR kusebenza ngokwakhiwa kokuphuka okukhethiwe nokuncishiswa kokudlula kakhulu. Ukuhlonziwe kwezinto phakathi kuholela ekwakhiweni kokuhlukahluka kobukhulu be-particle obuncane, kunciphisa ukukhiqizwa kwe-ultrafines okudlayo amandla ngomsebenzi ophakeme.

Uhlaka Lwenqubo Yokuhlakazeka Kwezithako kanye Nokukhululwa

Ihluzi yesilinganiselo sezakhi (PSD) kanye nezinga lokukhululwa kwemayini kuthinta ngokuqondile ukusebenza kahle kwemisebenzi yokuhlukanisa elandelayo.

PSD ku-SAG Mills

Izitshalo ze-SAG zibonakala z producing a broad PSD, kubandakanya ingxenye enkulu ye-fines kanye ne-coarse particles. Ukutholakala kwe-fines eziningi kungaphazamisa i-flotation kanye ne-leaching ngokwandisa ukusetshenziswa kwe-reagent nokunciphisa ukukhethwa. Ukuqhwasha okweqile kuholela ekwandeni kwezindleko zamandla kanye nezinkinga zokuphatha.

PSD ku-HPGR

i-HPGR ikhiqiza i-PSD eyisicaba kakhulu enezinqe ezincane. Umfutho ophakeme udala i-micro-fracturing, ethuthukisa ukukhululwa kwemaminerali ngaphandle kokukhiqiza kakhulu kwe-fines. Lokhu kukhululwa okuthuthukisiwe kungaguqula kube nezinga eliphezulu lokuthola emisebenzini ye-flotation nezinye izinqubo zokuthuthukiswa.

Throughput and Capacity

Ikhono leSAG Mills

Izitolo ze-SAG zikwazi ukuphatha izinga elikhulu lokuhamba, njalo zidlula ama-20,000 amathani ngosuku emisebenzini emikhulu. Ukuqina kwazo kanye nekghono lokucubungula izinhlobo ezahlukene ze-ore kwenza kube ukukhetha okuhle kumjikelezo wokugaya oyinhloko.

Nokho, izitolo ze-SAG zidinga utshalomali olukhulu lwezimali futhi zinezimali eziphezulu zokusebenza ngenxa yokusetshenziswa kwemfucuza kanye nokmaintenance.

Ikhono le-HPGR

Amayunithi e-HPGR nawo angaphatha izinga eliphezulu lokuhamba futhi aqhubeka efakwa emijikelezweni yokugaya emikhulu. Ngokuvamile asetshenziswa ndawonye nezitolo zebhola ukuze kuthuthukiswe ukusebenza kahle kokugaya.

HPGR’s compact design and lower energy requirements make them attractive for new installations and plant expansions.

Izinto Ezibalulekile Zokusebenza Nokugcinwa

I-SAG Mills

I-SAG mills inezingxenye eziningi ezihambayo, kuhlanganise nezikhumba kanye nezinsiza zokugaya, ezidinga ukuhlolwa njalo nokushintshwa. Inqubo yokugcinwa ingathatha isikhathi eside futhi ibize, ihilela ukuvalwa kwemishini.

Ngaphezu kwalokho, ama-SAG mills akhiqiza umsindo omkhulu kanye nokudlidliza, okuhlose ukuthuthukisa ukwesekwa kwesakhiwo okuqinile kanye nokulawulwa kwemvelo.

HPGR

Ama-HPGR anezingxenye ezihambayo ezincane, ikakhulukazi ama-rolls nezinhlelo zokushayela ezihambisana nazo. Ngenkathi ama-rolls ebhekene nokuguguleka, ikakhulukazi uma processing ore eziyinkinga, izikhathi zokugcinwa ngokuvamile zide, futhi isikhathi sokungasebenzi sincishiswa.

Ukusebenza kwe-HPGR kudinga ukulawula ngobuhlakani usayizi wokudla kanye nombrughuli wokudla okwaziyo ukwenzela ukuvimbela ukuguguleka okungafani nokuthuthukisa ukusebenza.

Umthelela Wokusebenza Kokuphila Kwemvelo

Ukusebenza kahle kwamandla kwe-HPGR kuhunyushwe kube ukwehla kokukhipha amagesi abamba umoya kanye nezinyathelo ezincishisiwe ze-carbon uma kuqhathaniswa nezimboni ze-SAG. Ukwengeza, ukuvela okuncishisiwe kwemijikijelo kunciphisa izinkinga zokubhaqa uthuli nezinto ezilungayo.

I-compact footprint ye-HPGR units iyanciphisa ukusetshenziswa kwemhlaba kanye nezinkinga zemvelo ezihambisana nakho.

Ungayikhetha Kanjani I-Grinding Mill Efanelekile?

Zonke i-HPGR ne-SAG mills zinezinzuzo ezahlukahlukene kanye nemikhawulo. I-SAG mills isaqhubeka uhlobo oluqinisekisiwe lobuchwepheshe olukh capable lokuphatha uhlu olunwide lwezinsimbi nezidingo ezinkulu zokudlulisela. Nokho, ukukhipha amandla acebile kanye nezidingo zokugcinwa kubeka izinselelo emkhakheni wokwanda kwamandla kanye nezinhloso zokuphila.

I-HPGR inikeza ukukhetha okuhehayo nokusebenza kahle kokusebenzisa amandla, ukuthuthukiswa kokusabalalisa usayizi wezinto, kanye nokukhululwa kwezinsimbi okwandisiwe. Ukulula kwayo kokusebenza kanye nezidingo eziphansi zokugcinwa kukhulu kakhulu ekubhekeni kwayo.

In modern mineral processing, a hybrid approach often yields the best results—combining HPGR for initial size reduction with ball mills or SAG mills for finer grinding stages. This integration optimizes energy use, throughput, and recovery, aligning with both economic and environmental objectives.