Machaena a maholohali a mahlo a tšepe a Simandou

Khampani ea tšepe ea Chaena Baowu e ka sehloohong sa sehlopha sa baetsi ba tšepe ba batlang ho nts'etsapele morafo o moholo oa tšepe oa Simandou Guinea, ho nka sebaka sa Aluminium Corp. ea China (Chalco) ha e ntse e batla ho boloka thepa e tala,  Caixin Global e tlaleha  Labobeli . .

Senatla sena sa 'muso se batla ho ntshetsa pele morafo oa tšepe ka mor'a ho fumana likarolo tsa morero o tšoeroeng ke Chalco ka tšebelisano le baetsi ba litšepe ba bang.

Mokhatlo oa China oa tšepe le baetsi ba litšepe ba ka sehloohong ba kopile hore ho be le keketseho ea tlhahiso ea tšepe ea lehae hammoho le matsete a mangata a ho  etsa lipatlisiso mose ho maoatle ho netefatsa hore ho na le thepa . Naha selemong se fetileng e hlahisitse 56% ea tšepe ea lefats'e. 

China ke eona e hloahloa ka ho fetesisa ea tšepe ea tšepe lefatšeng, 'me  tlhoko ea eona e tla fihla ho lithane tse limilione tse likete tse 1.225 ka 2020,  ho latela tanka ea ho nahana ea mmuso. Empa e ts'epa haholo ho tsoa kantle ho naha, kaha e rometsoe ka lithane tse bilione e le 'ngoe ea ore ka 2019.

Baowu e hakanya hore ho ntlafatsa Simandou le ho sebetsa ho ka hloka chelete e fetang lidolara tse libilione tse 15 tsohle tse boletsoeng ka mor'a ho kenya letsoho moahong o hlokahalang oa meaho, joalo ka seporo se tšelang naha le boema-kepe ba metsi a tebileng.

Litsebi tsa indasteri li nka Simandou e le setsi se seholo ka ho fetisisa sa tšepe ea tšepe ea maemo a holimo lefatšeng, empa e 'nile ea sokola ho kenya letsoho tlhahisong ka lilemo. 

Rio Tinto e ne e kile ya tshwara ditokelo tsa ho ntshetsapele diboloko tse nne tsa Simandou pele e amohuwa ditokelo tsa blocks 1 le 2 ka 2008. Litokelo tseo li ile tsa kena khoebong e kopanetsoeng lipakeng tsa  bilionea oa Iseraele Beny Steinmetz's BSG Resources le Vale.

Ka Hlakubele, Guinea  e ile ea khetha SMB-Winning e tšehelitsoeng ke China  ho nts'etsapele li-blocks tsa 1 le 2, tse nang le mehloli e hakanyetsoang ea lithane tse fetang limilione tse likete tsa 2 tsa tšepe ea boleng bo holimo.

Tlhokahalo

Bokamoso ba tšepe ea tšepe naheng ea China bo ile ba sisinyeha ka Labobeli, joalo ka ha tlhoko ea botsitso ea coronavirus e thibela khoebo pele ho matsatsi a phomolo a sechaba ho qala hamorao bekeng ena.

Bokamoso ba tšepe ea tšepe e rekisoang ka ho fetesisa ho Dalian Commodity Exchange, bakeng sa phano ea Loetse, bo koetse 0.3% ho 757 yuan ($ 107.05) tonne, tahlehelo ea bobeli e otlolohileng.

Khoebo ka phapanyetsano e tla koaloa ho tloha ka Labone bakeng sa mokete oa China Dragon Boat le ho buloa hape ka Mantaha.

Thepa ea tšepe e tsoang Australia le Brazil e nyolohile ka lithane tse limilione tse 1.4 ho tloha bekeng e fetileng ho ea ho lithane tse limilione tse 26.57 bakeng sa beke e felileng ka la 21 Phuptjane, datha e tsoang ho boeletsi ba Mysteel e bonts'itsoe, haholo-holo e susumetsoang ke keketseho e tsoang Australia.

Khetho ea AG/SAG Mill Liner Material

Lintho tse fapaneng tse sithabetseng, maemo a fapaneng a ts'ebetso a hloka li-liner tse fapaneng hore li lumellane. E le ho fihlela litlhoko tsa bareki ba AG kapa SAG mill liner, thepa ea liner tse kholo ke tšepe e phahameng ea manganese, tšepe e phahameng ea alloy white cast, high carbon chromium-molybdenum steel, medium carbon chromium-molybdenum steel, joalo-joalo. sebopeho se kenyelletsa austenite, martensite, bainite, le pearlite.

H&G Machinery e fana ka lisebelisoa tse latelang ho lahlela liner tsa hau tsa AG kapa SAG:

Tšepe ea Manganese e phahameng

Litšepe tse phahameng tsa manganese ke thepa ea setso bakeng sa ho hanyetsa abrasion le leloala la leloala. E sebelisoa haholo maemong a sa tšoaneng a ho apara ka lebaka la phello e tsotehang ea ho thatafatsa mosebetsi. Lebaka leo ka lona poleiti e phahameng ea tšepe ea manganese e nang le nako e telele ea tšebeletso ke hore leloala le leholo la bolo le na le lebelo le liehang le matla a maholo a ts'usumetso pakeng tsa bolo e silang le tšepe. Phello e thata ea mosebetsi oa tšepe e phahameng ea manganese e bohlokoa, 'me setsoalle se pakeng tsa ore le poleiti ea lesela Lebelo le lenyenyane. Leha ho le joalo, tšepe e phahameng ea manganese e boetse e na le bofokoli bo bolaeang, ke hore, tabeng ea tšusumetso e kholo, ka lebaka la matla a eona a tlaase, ho bonolo ho rheology, ho fella ka deformation e kholo ea liner, ho thata ho qhaqha liner, le bolt e tla robeha maemong a boima.

Alloy white cast iron

Thepa e emelang tšepe e tšoeu ea alloy ke tšepe e phahameng ea chromium, 'me litaba tsa Cr hangata li feta 12%. Hobane e na le li-carbides tsa mofuta oa M7C3 tse ka thōko, e bonts'a boima bo phahameng le ho ba le tšusumetso e matla (ho bapisoa le tšepe e tšoeu ea tšepe), 'me e' nile ea nkoa e le moloko o mocha oa thepa e sa sebetseng. se sebedisoang ho lesela la leloala la bolo. Leha ho le joalo, matla a ts'usumetso ea tšepe ea tšepe e phahameng ea chromium e ntse e le tlase (hangata 5 ~ 7 J / cm2), kahoo tšepe e entsoeng ka chromium e phahameng e loketse feela ho rafshoa ha li-liner tsa boholo bo bonyenyane le li-liner tse boholo bo boholo ka licheleteng tsa samente. Liloala tse metsi tse nang le bophara bo bonyenyane (li-diameter tse ka tlase ho 2.5 m) ha lia lokela liloala tse kholo tse nang le matla a maholo, haholo-holo leloala le leholo la SAG.

Alloy Steel

Tšepe ea alloy e le thepa e sa tsitsang e boetse e fihletse liphello tse ntle lits'ebetsong tse sebetsang. Lebaka le ka sehloohong ke hore carbon content ea tšepe ea alloy le mefuta le likahare tsa likarolo tsa alloy li ka fapana ka har'a mefuta e mengata. Ka mekhoa e fapaneng ea phekolo ea mocheso, Sebopeho le thepa ea tšepe ea alloy e ka fetoloa ka har'a mefuta e batlang e le khōlō ho fumana thepa e ntle ea mochine le ho finyella litlhoko tsa maemo a fapaneng a ho sebetsa. Lipatlisiso le ts'ebetso li bonts'itse hore tšepe ea alloy e loketse joalo ka  leloala la leloala  bakeng sa mechini e meholo ea ho itšila le metjhini ea ho itšeha, joalo ka ha ho bonts'itsoe tafoleng:

Ho ka bonoa hore poleiti ea tšepe ea martensitic Cr-Mo alloy e na le ts'ebeliso e ntle mochining oa ho itšeha, o lateloa ke poleiti ea tšepe ea pearlite Cr-Mo alloy. Lesela la tšepe la Pearlite Cr-Mo alloy le 'nile la sebelisoa haholo ho limilone tsa semi-automatic. Le hoja khanyetso ea eona ea ho roala e le mpe hanyenyane ho feta tšepe ea martensitic Cr-Mo alloy, ho tiea ha eona ho phahame ho feta tšepe ea martensitic Cr -Mo alloy, kahoo e loketse mochine o moholo oa ho itšeha o nang le tšusumetso e kholo.

@Nick Sun       [email protected]