High Pressure Grinding Rolls Incazelo Yomkhiqizo-ZY yezimayini

I-High-Pressure Grinding Rolls

Izinto Ezisetshenziswayo
Insimbi engeyona insimbi njenge-bauxite, insimbi yensimbi, impushana yensimbi nezinto zokusetshenziswa zikasimende ochotshoziwe, i-clinker, i-blast furnace slag, i-limestone nezinye izinto embonini ye-ore.
Izinzuzo Zomkhiqizo
Lo mkhiqizo unokusetshenziswa kwamandla okuphansi kanye nokungcola okuphansi. Iwuchungechunge lomkhiqizo oluphendula ukonga ugesi wasekhaya kanye nokunciphisa ukungcola, ikhabhoni ephansi nokuvikelwa kwemvelo.
Lo mkhiqizo ufakwe isembozo se-roller esivaliwe, esingalawula ngokuqinile ukusakazeka kothuli oluyingozi futhi udale indawo enhle kakhulu yokukhiqiza.
Enkambweni yesistimu yokugaya Ukusetshenziswa komshini we-roller we-high-pressure kule nqubo kungathuthukisa ukusebenza kahle kokukhiqiza kwalo lonke uhlelo.

Stuur e-pos Versoek kwotasie

High Pressure Grinding Rolls Isingeniso

Imingcele Yezobuchwepheshe

Principio de funcionamiento

Izinzuzo

Izingxenye ezisele

I-HPGR (i-high pressure grinding rolls/rollers) iyisisetshenziswa esiyinhloko senqubo yokugaya.

I-High Pressure Grinding Rolls (HPGR) wuhlobo lwemishini yokuchoboza esetshenziswa ezimbonini zezimayini nezimbiwa phansi. Ama-HPGR asebenzisa isistimu ye-hydraulic enengcindezi ephezulu ukuze iminyanise futhi igaye izinhlayiya phakathi kwamaroli amabili aphenduphendukayo, okunciphisa usayizi wezinhlayiya.

Umshini unciphisa izinhlayiya ngokucindezela futhi uchoboze okuphakelayo phakathi kwama-counter amabili azungezayo, ama-roller ahambisanayo anegebe elincane phakathi kwawo. Lokhu kuphoqelela amadwala ngokumelene nomunye futhi kucindezela ukuminyana kokuphakelayo ku-80% wevolumu yayo eqinile, kudlule amandla ayo okucindezela ngokucindezela okulinganayo okusetshenziswa ezinhlayiyeni zabo bonke osayizi.

Enye yezinzuzo eziyinhloko zama-HPGR uma kuqhathaniswa nezindlela zomdabu zokuchotshozwa ukuthi anamandla aphezulu futhi angakhiqiza umkhiqizo wokugcina ocolekile. Lokhu kwenza ama-HPGRs abe yinketho ekhangayo ezinhlelweni eziningi zokucubungula amaminerali, ikakhulukazi ezintweni eziqinile nezihubhukayo njengamadayimane, insimbi yensimbi, negolide.

Yaqala ukusetshenziswa embonini kasimende, kuyilapho namuhla, isiphinde yasetshenziswa kwezinye izimboni eziningi ezifana nokucubungula insimbi engenamvubelo, ukucutshungulwa kwensimbi eyinsimbi, ukucutshungulwa kwensimbi eyigugu, njll.

Imodeli	I-Roller Dia. (mm)	Ububanzi be-Roller (mm)	Amandla (kw)	Usayizi Wokudla (mm)		Usayizi Oqediwe (mm)		Ukukhipha (t/h)	Isisindo (t)
				Usayizi Wokudla (mm)		Usayizi Oqediwe (mm)
				Insimbi yensimbi (mm)	I-Iron powder (cm²/g)	Insimbi yensimbi (mm)	I-Iron powder (cm²/g)
				Insimbi yensimbi (mm)	I-Iron powder (cm²/g)	Insimbi yensimbi (mm)	I-Iron powder (cm²/g)
GM600-200	600	200	2X75	≤25	1100-1300	≤3	1400-1600	16-24	14
GM800-350	800	350	2X132	≤30	1100-1300	≤3	1400-1600	50-65	24
GM1000-300	1000	300	2X160	≤35	1100-1300	≤3	1400-1700	61-91	32
GM1000-400	1000	400	2X200	≤35	1100-1300	≤3	1400-1700	80-120	36
GM1000-500	1000	500	2X280	≤35	1100-1300	≤3	1400-1700	100-150	40
GM1200-500	1200	500	2X315	≤40	1100-1300	≤3	1600-1800	130-190	56
GM1200-630	1200	630	2X400	≤40	1100-1300	≤3	1600-1800	160-240	65
GM1200-800	1200	800	2X500	≤40	1100-1300	≤3	1600-1800	200-310	79
GM1400-800	1400	800	2X560	≤50	1100-1300	≤3	1600-1800	260-390	110
GM1400-1100	1400	1100	2X800	≤50	1100-1300	≤3	1600-1800	360-540	133
GM1700-1100	1700	1100	2X1000	≤60	1100-1300	≤3	1600-1800	530-800	179
GM1700-1400	1700	1400	2X1250	≤60	1100-1300	≤3	1600-1800	670-1000	208

Ithiyori ewumnyombo yokugaya i-high-pressure roller ungqimba lwempahla oluchotshozwa ngengcindezi ephezulu. Umgomo wokusebenza ukuchotshozwa kwe-static pressure. Umphumela wokuchoboza utholakala ngokucindezela izinto phakathi kwamarola amabili azungeza kancane. I-high-pressure roll grinding isebenzisa ukuchotshozwa kwesendlalelo sezinto ezibonakalayo, okuwukuchoboza phakathi kwezinto ezisebenza kahle kakhulu zokuchoboza. Ngokuvamile, ukusetshenziswa kwamandla okugaya ama-roller anengcindezi ephezulu kwehliswa kakhulu uma kuqhathaniswa nomthelela noma okokusebenza kokuchotshozwa kohlobo lwe-shear.

Isebenza kanjani i-HPGR

Uma i-HPGR isebenza, ama-roller amabili enza ukunyakaza okuhamba kancane. Enye yama-roller ilungisiwe ngenkathi enye ilungiswa futhi isetshenziselwa ukulungisa ibanga phakathi kwama-roller. Kuyindlela yokulawula ukucindezela.

Imvamisa, lapho impahla iphiwa ngokuqhubekayo emiqulu emibili yokugaya futhi idlula kuzo, amandla athile anikezwa irola egudlukayo, ngaleyo ndlela impahla ibanjwa amarola amabili ajikelezayo futhi yehlela phansi namaroli. Ngalesi sikhathi, endaweni ethile phakathi kwama-rollers okugaya, izinhlayiya zezinto ezibonakalayo zizokwakha ungqimba lwezinto ezibonakalayo.

Ngomfaniswano kanye nokucindezela okuphezulu okuzinzile (100-300MPa) kusuka kuma-rolls, izinhlayiya zezinto ezibonakalayo ziyacindezelwa, ziqhekeke futhi zichotshozwe.

Usayizi womkhiqizo ophumayo ungaba ngaphansi njengo-3mm.

Isakhiwo

Ukugaya i-high pressure roll ngokuvamile kusetshenziswa njengenqubo yokuchotshozwa okuhle kakhulu, okungaba njengesigaba sesithathu noma sesine senqubo yokuchotshozwa, futhi kungasetshenziswa enqubweni yokugaya i-semi-autogenous yamadwala aqinile.

Usayizi wento yokufaka ye-HPGR uvamise ukuba ngu-25~60 mm, futhi usayizi wokuphumayo ungaba ngaphansi kuka-3mm. Usayizi wokokufaka ongcono kakhulu kanye nokuphumayo kungakhethwa ngokufanele. Kunezici eziningana eziqhathaniswa nenqubo yokugaya yendabuko.

✪ 1. Isilinganiso sokunciphisa usayizi omkhulu

Usayizi ophumayo ovela kusistimu yokuchotshozwa evamile uzungeze u-12mm, futhi isilinganiso sokunciphisa usayizi sizungeze u-5. Kodwa isilinganiso sokunciphisa usayizi we-HPGR singafika ku-10 noma ngisho nangaphezulu. Iyakwazi ukugaya insimbi kusukela kusayizi wama-20-60mm kuya ngaphansi kuka-3mm.

✪ 2. Ukusebenza kahle kokuchotshozwa okuphezulu, ukusetshenziswa kwamandla okuphansi

I-ores ephumayo evela ku-HPGR inenani eliphezulu lezinhlayiya ezinhle, futhi ingaphakathi le-ore lizoba nokuqhekeka okuningi okuncane. Izinhlayiya ezinhle kakhulu kanye nokuqhekeka okuncane kuzosiza ekwehliseni kakhulu izindleko zokugaya insimbi. Qhathanisa nesistimu yokuchoboza eyenziwe nge-cone crusher, i-rod mill, i-ball mill, ngoba uhlelo lwe-HPGR lusebenzisa amandla aphansi kusuka ku-20 kuya ku-50%.

✪ 3. Thuthukisa ngokuphawulekayo inqubo yokulandelela njengokuntanta, ukuleaching, njll.

Ngokomkhuba we-HPGR ezimbonini zokumba ithusi negolide. Ukuqhekeka okuncane kwensimbi eyenziwe yi-HPGR kuthuthukisa kakhulu ukusebenza kahle kokugaya insimbi, kukhulisa izinga lokukhulula izimbiwa, kuthuthukisa ukusebenza kokuntanta, futhi kukhuphule isilinganiso sokutholwa kwe-concentrate ores yokugcina.

✪ 4. Enqubweni yokucwilisa, ukuqhekeka okuncane kwenza insimbi ixhumane kangcono noketshezi oluphumayo, okwandisa kakhulu isilinganiso se-ore leaching.

Ngokocwaningo lwe-copper ore leaching, ngokusebenzisa i-HPGR, i-copper inyuka ngo-60% kanye ne-leaching ratio yenyuka ngo-2% kuya ku-6% uma kuqhathaniswa nenqubo yokuchotshozwa kwendabuko.

✪ 5. Thuthukisa kakhulu izinga lokutholwa kwedayimane kuphrojekthi yedayimane.

Imishini yokugaya yendabuko efana nezigayo zamabhola, izigayo zokugaya ezizenzakalelayo noma ezinye izingqimba zehlisa usayizi wezinhlayiyana ngomthelela, okuzocekela phansi amadayimane amakhulu. Kubangela ukulahlekelwa okukhulu kwenani ledayimane, futhi kwandisa ukusetshenziswa kwamandla.

✪ 6. Uma usebenzisa i-HPGR ekuchobozeni insimbi yedayimane, igebe lama-roll lingalungiswa (isb. 25mm) ukuze kuqinisekiswe ukuthi amadayimane amakhulu ngeke achobozeke.

Ubuchwepheshe bokugaya ungqimba lwempahla ehlukile bucindezela ngokujulile insimbi engenasici, engakhuphula izinga lokutholwa komkhiqizo ngaphezu kwama-20%.