Siyini Isikrini Esidlidlizayo? Ukuthi Ukuhlolwa Kwemishini Kusebenza Kanjani
Isikrini esidlidlizayo umshini ohlukanisa ukugeleza kwezinhlayiya ngosayizi usebenzisa indawo yokuhlola ehambayo enezimbobo. Ukudlidliza kusiza ukuhambisa impahla eduze kwedekhi futhi kuvumela izinhlayiya ezincane ukuthi zisebenze embhedeni wezinto ezibonakalayo ziye endaweni yesikrini. Izinhlayiya ezidlula esikhaleni zingena emfudlaneni odlulayo; labo abasala emphemeni bahamba emfudlaneni ogciniwe. Ezitshalweni ezihlanganisiwe, le nqubo ifaka amatshe agayiwe, amatshe nesihlabathi esenziwe, noma ihlukanisa izinto ukuze zigaywe. Ukuqonda umphumela kudinga ukulandela kokubili ukusakaza: ukuvulwa kwesikrini kuchaza okokusebenza, kuyilapho okushiyayo kubonisa ukuthi yikuphi ukuhlukaniswa okufinyelelwe.
Senzani Isikrini Esidlidlizayo Ekuhlolweni Kwemishini?
Ukuhlolwa ngosayizi Wezinhlayiya
Ukuhlolwa kwemishini kuhlukanisa ingxube ekhona ibe amafrakshini kasayizi. I-crusher ishintsha usayizi wezinhlayiyana; isikrini siqondisa izinhlayiya emifudlaneni yenqubo ehlukene ngokuya ngokudlula kwazo endaweni yokuhlola.
Amagama amane asiza ukuchaza lokho kunyakaza:
| Ithemu | Incazelo enqubweni yokuhlola |
|---|---|
| Okuphakelayo | Okubalulekile kungena esikrinini |
| Idekhi yesikrini | Ileveli eyodwa yokuhlola ngaphakathi komshini, ephethe indawo yayo yokuhlola |
| Ukusakaza okudlulayo | Impahla ehamba ngezintuba kuleyo dekhi |
| Ukusakaza okugciniwe | Impahla eshiya idekhi ngaphandle kokudlula kuyo |
“Ubukhulu obungaphansi” kanye “nobukhulu obungaphezu kwamandla” kuchaza izinhlayiya ezihlobene nomngcele wosayizi obaluliwe. Ukudlula nokugciniwe kuchaza ukuthi izinto ziya kuphi. Ukugcina lezi zincazelo zihlukene kuyasiza uma ufunda umdwebo ogelezayo noma utolika isampula kumshini wokuthulula.
Lapho Isikrini Sihlala Kuseyingi Ecindezelayo
Imishini yokuhlola ehlanganisiwe ingasebenza ezindaweni eziningana endaweni yokucubungula. Ngaphambi kwe-crusher, ukuhlola kungasusa izinto esezihlangabezana nemfuneko yesayizi yesigaba esilandelayo. Ngemuva kokuchotshozwa, ingahlukanisa imikhiqizo eqediwe noma ihlonze izinto zesinye isigaba sokunciphisa.
Kumjikelezo ovaliwe, umfudlana wokubuyisela okhethiwe ubuyela emuva ukuze uchotshozwe okwengeziwe. Okunye ukusakaza kuqhubekela ekucutshungulweni okulandelayo noma ekuqoqweni. Umdwebo wokugeleza kwezitshalo unquma izindawo eziya kuzo.
RION izikrini eziyindilinga ezidlidlizayo sebenzisa amadekhi amaningi ukuze uhlukanise ngezigaba kanye nokuhlolwa kwe-crusher-return. Ezinye izikrini ezidlidlizayo zisebenzisa amaphethini ahlukene anyakazayo kanye nezinhlelo ngokuya ngohlelo lokusebenza.
Ukudlidliza Nokuvuleka Kwesikrini Kuyihlukanisa Kanjani Impahla?
I-Stratification kanye Nokwethulwa Kwezinhlayiyana
Ibhokisi lesikrini lisekela izindawo zokuhlola, kuyilapho i-exciter ikhiqiza ukunyakaza. Esikrinini esinyakazayo esiyindilinga, ibhokisi lilandela indlela eyisiyingi, kanye nentuthuko yezinto ezibonakalayo endaweni yokuhlola ethambekele. Imeshi yesikrini inikeza izimbobo lapho ukuhlukana kwenzeka khona. Emphemeni ethambekele, amandla adonsela phansi abuye asize ukuya lapho kuphuma khona.
Impahla ifika njengombhede wezinhlayiya ezixubile. Izinhlayiya ezincane eduze kwaphezulu kufanele zifinyelele endaweni yokuhlola ngaphambi kokuba zithole ithuba lokudlula. Njengoba ukudlidliza kuhamba futhi kuxegisa umbhede, izinhlayiya ezincane zingahamba ezikhaleni phakathi kwezinhlayiya ezinkulu ziye phansi. Le nqubo ibizwa ngokuthi i-stratification.
Ukuhlelwa kunikeza indawo yokuhlola ukufinyelela ezinhlayiyeni ebezingahlala zimboziwe. Inqubo iyaqhubeka njengokuthuthuka kokubalulekile, kunokwenza inqwaba yezendlalelo ezihlungwe unomphela endaweni yokungena.
Ukudlula Ngezimbobo Zesikrini
Ukufinyelela phezulu kuyingxenye yenqubo kuphela. Izinhlayiya nazo zidinga ukuhlangabezana nokuvuleka okutholakalayo endaweni efanele. Cabanga ngetshe elide: ikhono lalo lokudlula lingashintsha njengoba liphenduka, nakuba itshe ngokwalo lingashintshile usayizi.
Ukunyakaza okuphindaphindiwe kwakha amanye amathuba. Ezinye izinhlayiya zisheshe zidlule; abanye bahamba ibanga elide ngaphambi kokuba badlule noma bahlale emfudlaneni ogodliwe. Ngenxa yalokho, ukukhishwa okugciniwe kungaqukatha izinhlayiya ezincane kunomngcele wokuhlukanisa ohlosiwe.
Zizidala Kanjani Izingxenyana Zosayizi Ohlanganisiwe?
Ukulandela Ukusakazwa Okudlulayo Nokugciniwe
Emishinini yokuhlola isihlabathi namatshe, amadekhi amaningi angahlinzeka ngokuhlukana okulandelanayo ngaphakathi komshini owodwa. Ngohlelo olujwayelekile, idekhi ephezulu yenza ukuhlukana okuqinile futhi indawo ephansi ithola izinto ezidlule kuyo.
Okulandelayo ukuhlelwa kwamadekhi amabili okucabangayo ikhombisa imizila yezinto ezibonakalayo:
| Umzila wento | Kwenzekani ngokulandelayo |
|---|---|
| Igcinwe endaweni ephezulu | Ihamba ngokukhishwa okuphezulu okugciniwe, ngomkhiqizo wayo owabelwe noma umsebenzi wokubuyisela |
| Idlula endaweni engaphezulu | Iwela endaweni ephansi ukuze iphinde ihlukanise |
| Igcinwe endaweni ephansi | Iphuma ngokukhishwa okugciniwe okuhlukile |
| Idlula endaweni ephansi | Ihamba ngokukhishwa okudlula okuphansi |
Lolu hlelo lukhiqiza imifudlana emithathu yokukhipha. Ukuthi zimele imikhiqizo emaholoholo, emaphakathi kanye nenhlawulo ethengiswayo kuncike ezimfuneko zokugreda nokokusebenza okuqoqiwe ngempela. Ukukhishwa ngakunye kufanele kuhlolwe ngokuqhathaniswa nesigaba somkhiqizo okuhlosiwe.
I-Screen Aperture kanye Nosayizi Wokuhlukanisa
Imbobo iyimbobo kumidiya yesikrini. Ubukhulu bayo bokuzisholo bungalinganiswa, kodwa indawo efakiwe nayo inogqinsi, ukwakheka kokuvula nokuthambekela. UMetso I-Crushing and Screening Handbook, uhlelo lwesikhombisa (2023), luhlukanisa ukuvulwa okuzisholo kokuvula okusebenzayo okutholakalayo ezinhlayiyeni ezidlulayo.
Umphumela ongokoqobo ukuthi ubukhulu bembobo bubodwa abukwazi ukuchaza ukuhlukana okuzuziwe. Ukucaciswa komkhiqizo kuphathelene nokusatshalaliswa kosayizi bezinhlayiyana ekukhishweni. Lawo sayizi kufanele ahlolwe ngokuhambisana nezidingo zokugreda zephrojekthi.
Lo mehluko futhi uvimbela ukudideka phakathi kwesikhala sesikrini sokukhiqiza kanye nesisefo sokuhlola esisetshenziselwa ukuchaza umkhiqizo. Afeza izinjongo ezihlukene futhi awadingi ukuba nobukhulu obufanayo.
Yini Elawula Ikhono Lokuhlola Nokunemba Kokwehlukana?
Ukusabalalisa Okuphakelayo Nokujula Kombhede
Isikrini sidinga ukusabalalisa umsebenzi waso endaweni etholakalayo. Uma okuphakelayo okuningi kuhlala endaweni ewumngcingo, leyo ndawo ithwala umbhede ojulile kuyilapho ezinye izindawo zithola ukwaziswa okuncane. Ububanzi bedekhi obugcwele abunikezi ngokulinganayo.
Ukukhiqiza kumele kuhlolwe ngokuhambisana nezakhiwo zezinto ezibonakalayo, izimo zenqubo kanye nemigomo yomkhiqizo. Ukusakaza okubili okuphakelayo kungase kube nokugeleza kwesisindo esifanayo ngenkathi kwethula imisebenzi ehlukene yokuhlukanisa: eyodwa ingase iqukathe ngokuvamile izinhlayiya ezihlukaniswa kalula lapho kusikwa khona okudingekile, kuyilapho enye igxilisa okubalulekile eduze kwalowo mngcele. Kungakho izinhlelo zokusebenza zokuhlola zidinga incazelo yezinto ezibonakalayo kanye nethagethi yomthamo.
Umswakama, Izinhlayiya ezinosayizi oseduze nendawo evulekile etholakalayo
Izinhlayiya eziseduze nosayizi wokuvula ngokuvamile zidinga ukuhlangana okuvumayo kunezinhlayiya ezincane kakhulu. Ukuhlanganyela kwabo kokuphakelayo kusiza ukuchaza ukuthi kungani ubukhulu besayizi yesigaxa kanye nesibalo esingamathani ngehora kungezona izincazelo ezanele zomsebenzi.
Izinto ezilandelayo zixhumanisa ukuziphatha okubalulekile nolwazi oludingekayo ukuze kuqondwe umphumela:
| Isici | Umthelela emsebenzini wokuhlola | Ulwazi olufanele |
|---|---|---|
| Ukusatshalaliswa kosayizi wezinhlayiyana zesiphakeli | Inquma ukuthi kungakanani okudinga ukuhlukaniswa ngakunye | Usayizi wamafrakshini ngenhla nangaphansi kokusikwa okuqondiwe |
| Umswakama nobumba | Ingashintsha ukunamathela nokuthi izinhlayiya zihamba kanjani ngokukhululeka | Isimo sokuphakelayo, okuhlanganisa izinguquko phakathi nokusebenza |
| Umumo we-particle | Kuthinta umumo odingekayo ukuze kudlule indawo evulekile | Izinto ezithambile noma ezinde ekuphakeleni |
| Ukwakhiwa kwemidiya nendawo evulekile | Ishintsha ukuthi ingakanani indawo yokuhlola equkethe izimbobo | Ubukhulu bembobo, umumo nohlobo lwemidiya |
| Izinga lokuphakelayo nokuhluka kwalo | Ishintsha inani lempahla ethulwa endaweni | Ukugeleza okuvamile nokuguquguquka phakathi nesikhathi esihloliwe |
Lezi zimo kufanele zicatshangelwe ndawonye lapho kuchazwa ukusebenza kokuhlolwa.
Amagama amabili achaza ukuvuleka okungatholakali. Ngamagama kaMcLanahan, ukuphuphuthekisa ngokuvamile kuhilela ukunamathela okubalulekile kwabezindaba, kuyilapho ukupheqa kuhilela izinhlayiya eziwela ezimbotsheni. Zombili zinciphisa amathuba okuthi ezinye izinhlayiya zidlule. Lezi zindlela zisiza ukuchaza izinguquko zokusebenza, nakuba imbangela nempendulo efanele incike kusikrini esithile kanye nokokusebenza.
Ungahlola Kanjani Ukuthi Isikrini Senza Umsebenzi Waso?
Chaza Ukusakaza Okukaliwe kanye Nokusikwa Kosayizi
Qala ngombuzo isilinganiso okufanele siwuphendule. Ukugredwa komkhiqizo kubuza ukuthi yimaphi amafrakshini kasayizi akhona ekukhishweni. Ukuthola usayizi ongaphansi kubuza ukuthi kungakanani okuqondiwe kokuphakelayo okufinyelele ekusakazeni okuhlosiwe okudlulayo.
Incwadi yesandla ka-Metso yohlelo lwesikhombisa ihlukanisa izilinganiso zekhono ngokuya ngokulandelana kwezithakazelo futhi iyazihlola ngedekhi ngayinye. Ukuze uthole ukutholwa kosayizi ongaphansi, ukuqhathanisa okufanelekile kuqondiswe kusayizi ongaphansi otholwe emfudlaneni odlulayo ohlukaniswa ngosayizi oqondisiwe ongena kuleyo dekhi.
Amasampula ahlanganisiwe ahlinzeka ngolwazi losayizi wokusabalalisa oludingekayo kulokho kuqhathanisa. I-ASTM C136/C136M-25, Indlela Yokuhlola Ejwayelekile Yokuhlaziywa KweSieve Kwezilinganiso Ezinhle Neziqinile, ihlanganisa ukunquma ukusatshalaliswa kosayizi wezinhlayiyana ezihlanganisiwe ngokusefa. Inikeza indlela yokuhlola ukugreda kwempahla; ayiqinisekisi isikrini esidlidlizayo noma isungule umkhawulo wokwamukela ukusebenza kahle komshini. Sebenzisa amasampula, ukuhlolwa kanye nezidingo zokugreda ezisebenza kuphrojekthi.
Funda Isibonelo Esilula Sokubuyisela Usayizi Ophansi
Cabanga ngalokhu ukubala okucatshangelwayo kwedekhi eyodwa yesikrini. Cabanga ngokusebenza okuzinzile, isikhathi sokubika esivamile nokungaguquguquki isisekelo se-dry-mass. Usayizi wokuhlola obaluliwe uwumngcele wokuhlaziya ngesisefo; akucatshangwa ukuthi ilingana nendawo yokuvula isikrini sokukhiqiza. Lapha, u-t/h usho amathani e-metric ngehora.
| Ubuningi | Inani elicatshangelwayo |
|---|---|
| Okuphakelayo ukugeleza kwe-dry-mass | 100 t/h |
| Okuphakelayo kuncane kunosayizi wokuhlola oshiwo | 40% |
| Ukugeleza kwe-dry mass flow | 42 t/h |
| Ingxenye yokusakaza edlulayo incane kunosayizi wokuhlola ofanayo | 90% |
Okokuqala, thola ithagethi ibe ngaphansi kosayizi ongena edekhini:
100 t/h × 40% = 40 t/h
Bese uthola usayizi oqondisiwe otholwe ekusakazweni okudlulayo:
42 t/h × 90% = 37.8 t/h
Ukubuyiselwa okungaphansi kosayizi ngu:
37.8 ÷ 40 × 100% = 94.5%
I 90% Isibalo siwumkhiqizo odlulayo ingxenye engaphansi kosayizi wokuhlola, noma okuqukethwe okungaphansi kosayizi. I 94.5% Isibalo siyisabelo sethagethi etholakala ngaphansi kukasayizi otholwe lapho. Anamahlelo ahlukene futhi aphendula imibuzo ehlukene.
Uma impahla iphuma kuphela ekukhishweni kwedekhi emibili, ukusakaza okugciniwe kuqukethe okusele 2.2 t/h of the target undersize:
40 − 37.8 = 2.2 t/h
Ukuthi ukuhlukaniswa kuyamukeleka yini kuncike ekubuyiseleni okudingekile kanye nesigaba somkhiqizo. Umphumela usebenza kudekhi ehloliwe ngaphansi kwalezi zimo.
Yiluphi Ulwazi Olwenza Ukucaciswa Kwesikrini Esidlidlizayo Kunenjongo?
Funda Izimo Zokuphakelayo Ngokuhambisana Nokuqondisiwe Komkhiqizo
Ukucaciswa okuwusizo kwempahla yokuhlola edlidlizayo ixhuma incazelo yomshini nomsebenzi wokuhlukanisa ochaziwe. Ngokuhambisana nokubala kwedekhi nemidiya yesikrini, kufanele kukhombe:
- Ukusatshalaliswa kosayizi wezinhlayiyana zesiphakeli kanye nohlobo lwezinto ezibonakalayo.
- Izinga lokuphakelayo elijwayelekile kanye nokuguquguquka okulindelekile.
- Umswakama, ubumba nezinye izimo zempahla ezifanele.
- Ukuminyana ngobuningi kanye nesisekelo esisetshenziselwa ukubika ukugeleza.
- Osayizi abadingekayo bokuhlukanisa kanye nemikhawulo yezinga lomkhiqizo.
- Indawo yokukhishwa ngakunye, okuhlanganisa noma yikuphi ukubuya kwe-crusher.
Le mininingwane yenza izitatimende zamandla kanye nokuhlukaniswa zichazeke. Ziphinde zibonise ukuthi ingabe ukuqhathanisa kokusebenza kwakamuva kuthinta umsebenzi ofanayo noma ukuphakelayo okuhluke kakhulu nokuhlosiwe komkhiqizo.
Ukuhlobanisa lowo msebenzi nebanga lesikrini esiyindilinga se-RION, xoxa ngezidingo zakho zokuhlolwa ngencazelo yokuphakelayo, ukugreda komkhiqizo odingekayo kanye nemizila yokukhipha okuhlosiwe. Lezo zimo zinikeza ukucaciswa kwemishini incazelo yayo engokoqobo.