Escondida inopa kutanga pamudyandigere pakati pedenda

171113_Escondida_LQ

BHP yakati neChitatu mugodhi wayo wemhangura weEscondida muChile, mukurusa pasi rose, yakapa vamwe vashandi mukana wekukurumidza kuenda pamudyandigere pakati pedenda rekoronavirus, chirongwa chakashoropodzwa nemubatanidzwa wekambani iyi sechirongwa chekudzinga vakwegura nevanorwara.

Escondida akadaro mukutaura kune Reuters kupa kwaizopa "yakavandudzwa" pasuru yemabhenefiti emudyandigere kune vashandi vanozadzisa "zvinodikanwa". Kambani yakaramba kudonongodza zvisungo izvi.

Asi mubatanidzwa waro wevashandi une simba wakataura kuti vakananga kukwezva vakweguru nevane hutano kuti vaende pamudyandigere panguva iyo vazhinji vachiri kuda kushanda. Zvisungo zvehurumende zvakatoda kuti vashandi vari munjodzi vamiswe parutivi kuchengetedza hutano hwavo.

"(BHP) iri kuyedza kuzvibvisa pamutoro wekubata mabasa evanorwara nevakweguru, avo kupfuura ... pamudyandigere, vachasara vasina basa," mubatanidzwa wakadaro mukutaura.

Sangano iri rinoti richanyatso ongorora hurongwa hwekuona kuti hadzishandiswe senzira yekubvisa vashandi panguva yedenda. Pamugodhi uyu pane vashandi zviuru zviviri nemazana matatu nemakumi manomwe nevaviri.

Kunetsana pakati peBHP's Escondida nevashandi vayo vakabatana kunouya sezvo denda re coronavirus rakaputika munzvimbo zhinji dzeChile dzakapfuma mugwenga rekuchamhembe. Nyika yeSouth America yakanyora nyaya dzinodarika mazana matatu ezviuru zvehutachiona uye vanopfuura mazana matanhatu nemazana mashanu vafa.

Gurukota rezvemigodhi, VaBaldo Prokurica, vateterera makambani emigodhi kuti vasiyane nekudzimwa mabasa uye kuchengetedza hutano hwevashandi vachichengetedza zvinobuda.

Escondida haana kudoma huwandu hwevashandi hwainotarisira kuti vachatora sarudzo yekuenda pamudyandigere.

Ball Mill Liner Material Sarudzo

Yakasiyana yakapwanyika zvinhu, akasiyana ekushanda mamiriro anoda akasiyana zvinhu liner kuti aenderane. Zvakare, iyo yakakasharara yekukuya compartment uye yakanaka yekukuya compartment inoda akasiyana matinji.

H&G Michina inopa zvinotevera zvinhu kukanda yako bhora chigayo liner:

Manganese Steel

Iyo manganese yemukati meyakakwira manganese simbi bhora chigayo lining plate inowanzo 11-14%, uye iyo kabhoni yemukati inowanzo 0.90-1.50%, mazhinji ayo ari pamusoro pe1. Pamitoro yakaderera, kuoma kunogona kusvika HB300-400. Pakukwirisa mitoro, kuoma kunogona kusvika HB500-800. Zvichienderana nekutakura mutoro, kudzika kweiyo yakaomeswa layer inogona kusvika 10-20mm. Iyo yakaomeswa layer ine kuomarara kwakanyanya inogona kuramba kukanganisa uye kuderedza abrasive kupfeka. Yakakwira manganese simbi ine yakanakisa anti-kupfeka mashandiro pasi pemamiriro eiyo yakasimba kukanganisa abrasive kupfeka, saka inowanzoshandiswa munzvimbo dzisingapfeki dzemigodhi, zvekuvaka, simba rekupisa, uye zvimwe zvemichina. Pasi pemamiriro ekuderera kwemamiriro ezvinhu, yakakwira manganese simbi haigone kuita hunhu hwechigadzirwa nekuti basa rekuomesa mhedzisiro haisi pachena.

Kuumbwa Kwemakemikari

Zita	Kuumbwa Kwemakemikari (%)
Zita	C	Si	Mn	Cr	Mo	Cu	P	S
Mn14 Mill Liner	0.9-1.5	0.3-1.0	11-14	0-2.5	0-0.5	≤0.05	≤0.06	≤0.06
Mn18 Mill Liner	1.0-1.5	0.3-1.0	16-19	0-2.5	0-0.5	≤0.05	≤0.06	≤0.06

Mechanical properties uye metallographic structure

Zita	Kuoma Kwepamusoro (HB)	Impact value Ak (J/cm2)	Microstructure
Mn14 Mill Liner	≤240	≥100	A+C
Mn18 Mill Liner	≤260	≥150	A+C
C -Carbide \| Carbide A-Yakachengetwa austenite \| Austenite

Product specification

Size	Hole Dia. (mm)		Liner Length (mm)
Size	≤40	≥40	≤250	≥250
Kushivirira	+2 0	+3 0	+2	+3

Chrome Alloy Steel

Chromium alloy cast iron yakakamurwa kuita yakakwira chromium alloy cast iron (chromium content 8-26% carbon content 2.0-3.6%), medium chromium alloy cast iron (chromium content 4-6%, carbon content 2.0-3.2%), yakaderera chromium Mhando nhatu dzealloy cast iron (chromium content 1-3%, carbon content 2.1-3.6%). Chinhu chayo chinoshamisa ndechekuti microhardness yeM7C3 eutectic carbide iHV1300-1800, iyo inogoverwa muchimiro chetambo yakaputsika uye yakaparadzaniswa pane martensite (iyo yakaoma zvikuru musimbi matrix) matrix, kuderedza cleavage effect pamatrix. Naizvozvo, iyo yakakwira-chromium alloy liner ine simba rakawanda, bhora rehuyo kusimba, uye yakakwirira kupfeka kuramba, uye kuita kwayo kunomiririra nhanho yepamusoro yezvinhu zvazvino zvesimbi zvinopfekwa.

Kuumbwa Kwemakemikari

Zita	Kuumbwa Kwemakemikari (%)
Zita	C	Si	Mn	Cr	Mo	Cu	P	S
Yakakwira Chrome Alloy Liner	2.0-3.6	0-1.0	0-2.0	8-26	≤3.0	≤1.2	≤0.06	≤0.06
Middle Chrome Alloy Liner	2.0-3.3	0-1.2	0-2.0	4-8	≤3.0	≤1.2	≤0.06	≤0.06
Yakaderera Chrome Alloy Liner	2.1-3.6	0-1.5	0-2.0	1-3	0-1.0	≤1.2	≤0.06	≤0.06

Mechanical properties uye metallographic structure

Zita	Surface (HRC) Ak (J/cm2)				Microstructure
Yakakwira Chrome Alloy Liner		≥58		≥3.5		M+C+A
Middle Chrome Alloy Liner		≥48		≥10		M+C
Yakaderera Chrome Alloy Liner		≥45		≥15		M+C+P
M-Martensite	C - Carbide		A-Austenite		P-Pearlite

Product specification

Size	Hole Dia. (mm) Liner Length (mm)
Size	≤40	≥40	≤250	≥250
Kushivirira	+2 0	+3 0	+2	+3

Cr-Mo Alloy Steel

Qiming Machinery inoshandisa Cr-Mo alloy simbi kukanda bhora chigayo liner. Ichi chinyorwa chakavakirwa pachiyero cheAustralia, (AS2074 Standard L2B, uye AS2074 Standard L2C) inopa hukuru hwekuita uye kuramba kupfeka mune ese semi-autogenous milling application.

Kuumbwa Kwemakemikari

Code	Chemical Elements (%)
Code	C	Si	Mn	Cr	Mo	Cu	P	S
L2B	0.6-0.9	0.4-0.7	0.6-1.0	1.8-2.1	0.2-0.4	0.3-0.5	≤0.04	≤0.06
L2C	0.3-0.45	0.4-0.7	1.3-1.6	2.5-3.2	0.6-0.8	0.3-0.5	≤0.04	≤0.06

Zvenyama Zvivakwa & Microstructure

Code	Kuoma (HB)	Ak (J/cm2)	Microstructure
L2B	325-375	≥50	P
L2C	350-400	≥75	M
M-Martensite, C-Carbide, A-Austenite, P-Pearlite

Ni-hard Steel

Ni-Hard isimbi chena yakakandwa, yakasanganiswa nickel uye chromium inokodzera kushomeka, inotsvedza abrasion kune ese akanyorova uye akaoma maapplication. Ni-Hard chinhu chakanyanya kupfeka-chinodzivirira, chakakandwa mumafomu uye zvimiro izvo zvakanakira kushandiswa munzvimbo dzinoshungurudza uye kupfeka uye mashandisirwo.

Kuumbwa Kwemakemikari

Zita	C	Si	Mn	Ni	Cr	S	P	Mo	Kuoma
Ni-Hard AS2027 Gr Ni Cr 1-550	3.2-3.6	0.3-0.8	0.2-0.8	3.0-5.0	1.5-3.0	≤0.12	≤0.15	≤0.5	550-600HBN
Ni-Hard AS2027 Gr Ni Cr 2-550	2.8-3.2	0.3-0.8	0.2-0.8	3.0-5.0	1.5-3.0	≤0.12	≤0.15	≤0.5	500-550HBN
Ni-Hard AS2027 Gr Ni Cr 2-550	3.2-3.6	1.5-2.2	0.2-0.8	4.0-5.5	8.0-10.0	≤0.12	≤0.15	≤0.5	630-670HBN

White Iron Steel

White iron liner inokurudzirwa kunge ichishandisa yakaderera-simba kushanda mamiriro akadai se:

1. Bhandi rekutakura liner yeMigodhi indasitiri.

2. Cement plant bhora chigayo.

3. Chemical industry bhora chigayo.

Kuumbwa Kwemakemikari

Zita	Muumbi weKemikari(%)
Zita	C	Si	Mn	Cr	Mo	Cu	P	S
White Iron Steel Liner	2.0-3.3	0-0.8	≤2.0	12-26	≤3.0	≤1.2	≤0.06	≤0.06

Zvenyama Zvivakwa & Microstructure

Zita	HRC	Ak(J/cm2)	Microstructure
White Iron Steel Liner	≥58	≥3.5	M+C+A
M-Martensite C- Carbide A-Austenite

@Nick Sun [email protected]

Nguva yekutumira: Jul-10-2020