China zitsulo chimphona chimphona maso Simandou

Kampani ya zitsulo yaku China Baowu ndi mtsogoleri wa gulu la opanga zitsulo omwe akufuna kupanga mgodi waukulu wachitsulo wa Simandou ku Guinea, kutenga m'malo mwa Aluminium Corp. ya China (Chalco) pofuna kupeza zinthu zopangira zitsulo,  Caixin Global inanena  Lachiwiri . .

Chimphona chaboma chikufuna kutukula mgodi wa chitsulo chitatha kupeza magawo a ntchito yomwe kampani ya Chalco imagwira ntchito mogwirizana ndi ena opanga zitsulo.

Bungwe la zitsulo ku China ndi opanga zitsulo akuluakulu apempha kuti achulukitse kupanga zitsulo zapakhomo komanso kuti awononge ndalama zambiri  pofufuza kunja kuti atsimikizire kupezeka . Dzikoli chaka chatha linapanga 56% yazitsulo zapadziko lonse lapansi. 

China ndiye ogula kwambiri zitsulo zachitsulo padziko lonse lapansi, ndipo  zofuna zake zikuyembekezeka kugunda matani 1.225 biliyoni mu 2020,  malinga ndi tank yoganiza zaboma. Koma imadalira kwambiri zogulitsa kunja, zomwe zidatumizidwa matani biliyoni imodzi mu 2019.

A Baowu akuyerekeza kuti Simandou ayambenso kugwira ntchito angafunike ndalama zoposa $15 biliyoni zonse zomwe zanenedwa pambuyo pokonza zofunikira zomanga, monga njanji yodutsa njanji ndi doko lamadzi akuya.

Akatswiri azachuma amawona kuti Simandou ndiye gawo lalikulu kwambiri padziko lonse lapansi, koma lakhala likuvutikira kuti liyambe kupanga kwazaka zambiri. 

Rio Tinto anali ndi ufulu wokhazikitsa midadada yonse inayi ya Simandou asanalandidwe ufulu wa midadada 1 ndi 2 mu 2008. Ufulu umenewo unapita ku mgwirizano pakati pa  bilionea wa Israeli Beny Steinmetz's BSG Resources ndi Vale.

M'mwezi wa Marichi, Guinea  idasankha bungwe la China-backed consortium  SMB-Winning kuti likhazikitse midadada 1 ndi 2, yomwe imakhala ndi matani opitilira 2 biliyoni azitsulo zapamwamba kwambiri.

Kufuna

Tsogolo la benchmark iron ore ku China lidayenda pang'onopang'ono Lachiwiri, pomwe kusatsimikizika kwa coronavirus kudabweza malonda asanafike tchuthi kuyambira kumapeto kwa sabata ino.

Zogulitsa zachitsulo zomwe zimagulitsidwa kwambiri pa Dalian Commodity Exchange, pakubweretsa kwa Seputembala, zidatseka 0.3% pa ​​757 yuan ($ 107.05) patani, kutayika kwachiwiri molunjika.

Kugulitsa pakusinthana kudzatsekedwa kuyambira Lachinayi ku chikondwerero cha China Dragon Boat ndikutsegulidwanso Lolemba.

Kutumiza kwachitsulo kuchokera ku Australia ndi ku Brazil kudakwera ndi matani 1.4 miliyoni kuchokera sabata yatha kufika matani 26.57 miliyoni sabata yomwe idatha pa Juni 21, zomwe zidachokera kwa consultant Mysteel zidawonetsa, makamaka zoyendetsedwa ndi kuwonjezeka kuchokera ku Australia.

AG/SAG Mill Liner Material Selection

Zosiyanasiyana zophwanyidwa, zogwirira ntchito zosiyanasiyana zimafunikira ma liner osiyanasiyana kuti agwirizane. Pofuna kukwaniritsa zofunika makasitomala AG kapena SAG mphero liners, zipangizo za mphero liners makamaka mkulu mkulu manganese chitsulo, mkulu aloyi woyera kuponyedwa chitsulo, mkulu carbon chromium-molybdenum zitsulo, sing'anga mpweya chromium-molybdenum zitsulo, etc. The masanjidwewo kapangidwe kake kumaphatikizapo austenite, martensite, bainite, ndi pearlite.

H&G Machinery imapereka zinthu zotsatirazi kuti muponyere zingwe zanu za AG kapena SAG:

Chitsulo chachikulu cha Manganese

Chitsulo chachikulu cha manganese ndi chida chachikhalidwe chokana abrasion ndi mphero. Amagwiritsidwa ntchito kwambiri m'mavalidwe osiyanasiyana chifukwa chogwira ntchito modabwitsa. Chifukwa chomwe mbale yayikulu yachitsulo ya manganese imakhala ndi moyo wautali wautumiki ndikuti mphero yayikulu imakhala ndi liwiro lapang'onopang'ono komanso mphamvu yayikulu pakati pa mpira wogaya ndi miyala. Kuwumitsa ntchito kwa chitsulo chapamwamba cha manganese ndi chofunikira, ndipo wachibale pakati pa ore ndi mbale yachitsulo Kuthamanga ndi kochepa. Komabe, mkulu wa manganese zitsulo alinso kufooka amapha, ndiye kuti, pa nkhani yaikulu kwambiri, chifukwa otsika zokolola mphamvu, n'zosavuta rheology, chifukwa mapindikidwe lalikulu la liner, zovuta disassemble liner, ndi bolt adzathyoledwa pakavuta kwambiri.

Aloyi woyera kuponyedwa chitsulo

Zomwe zimayimira chitsulo choyera cha aloyi ndi chitsulo chosungunuka cha chromium, ndipo Cr nthawi zambiri imakhala yoposa 12%. Chifukwa lili ndi ndodo yakutali-monga high-hardness mtundu wa M7C3 carbides, imasonyeza kuuma kwapamwamba komanso kulimba kwamphamvu (poyerekeza ndi chitsulo choyera), ndipo yakhala ikudziwika kuti ndi mbadwo watsopano wa zipangizo zosavala, ndipo wakhala amagwiritsidwa ntchito pa mzere wa mpira mphero. Komabe, kulimba kwachitsulo chachitsulo chopangidwa ndi chromium kumakhalabe kotsika (nthawi zambiri 5 ~ 7 J/cm2), kotero kuti chitsulo chopangidwa ndi chromium chapamwamba chimangoyenera kukumba ma liner ang'onoang'ono ndi zitsulo zazikuluzikulu mu mphero za simenti. Mphero zonyowa zazing'ono zazing'ono (zam'mimba mwake pansi pa 2.5 m) sizoyenera mphero zazikulu zokhala ndi mphamvu zazikulu, makamaka mphero zazikulu za SAG.

Aloyi Chitsulo

Chitsulo cha alloy ngati chinthu chosamva kuvala chapezanso zotsatira zabwino pamagwiritsidwe ntchito. Chifukwa chachikulu ndi chakuti carbon zili mu aloyi zitsulo ndi mitundu ndi nkhani za aloyi zinthu akhoza zosiyanasiyana mkati osiyanasiyana. Ndi njira zosiyanasiyana zochizira kutentha, Mapangidwe ndi katundu wa zitsulo za alloy zitha kusinthidwa mkati mwazosiyanasiyana kuti apeze zida zamakina bwino komanso kukwaniritsa zofunikira zamitundu yosiyanasiyana yogwirira ntchito. Kafukufuku ndi machitidwe awonetsa kuti chitsulo cha aloyi ndi choyenera ngati  mphero yamakina  akuluakulu odzipera okha ndi makina odzipukuta okha, monga momwe tawonetsera patebulo:

Zitha kuwoneka kuti mbale yachitsulo ya martensitic Cr-Mo alloy imagwira ntchito bwino pamakina odzipera okha, ndikutsatiridwa ndi mbale yachitsulo ya pearlite Cr-Mo alloy. Pearlite Cr-Mo alloy steel lining yakhala ikugwiritsidwa ntchito kwambiri mu mphero zodziwikiratu. Ngakhale kukana kwake kuvala kumakhala koyipa pang'ono kuposa chitsulo cha Cr-Mo alloy, kulimba kwake ndikwambiri kuposa chitsulo cha martensitic Cr -Mo alloy, motero ndikoyenera makina akulu odzipangira okha okhala ndi mphamvu yayikulu.

@Nick Sun       [email protected]