Muchigayo cheupfu, kucheneswa kunotanga ne-yekuchenesa. Kana zviyo zvangopinda, zvinopinda nemuchina uyu kubvisa tsvina-kumisikidza zvinhu kuitira kuti zvimwe zvese zvifambe pasina dambudziko.
I. Basa Rakakosha: Kubvisa Kusvibiswa Kwakaoma uye Kwechiedza
Basa guru rekutanga{{0}kuchenesa nderekutanga,{1}}kutsvaira{1}pamwero wezviyo zvinenge zvauya, kubvisa tsvina yakakurisa muhukuru kana kuti yakareruka muhuremu, iyo inobatwa zviri nyore nemichina inotevera.
Zvinhu zvikuru zvekubvisa zvinosanganisira:
Coarse Impurities:
Matombo makuru, zvidhinha, mavhinga evhu, twine, machira epurasitiki, zvidimbu zvebhegi zvakarukwa, miguri yechibage, mashanga, machipisi.
Kusvibiswa Kwechiedza (pane mamwe mamodheru):
tsanga, mhodzi dzesora
Kusvibiswa Kwakanaka (pane mamwe mamodheru):
Matombo maduku, jecha zvidimbu
II. Nzvimbo muFlour Mill Process Flow
Iyo pre-yekuchenesa inogaroiswa kwekutanga chaiko kwechikamu chekuchenesa, kureva, semudziyo wekutanga mushure mekutambira zviyo zvisina kubikwa.
Typical Process Flow Position:
Kugashira Zviyo Mbishi → Pre-Kuchenesa → Magnetic Separator (kusarudza) → Kupisa/Kusina Kuchena Gorosi Siro (Kuchengeta Kwenguva pfupi) → Midziyo Yekuchenesa Inotevera (Separator, Destoner, Scourer, zvichingodaro) → Kugaya & Conditioning → Kugaya
Chikonzero chekuiisa kumberi chaiko ndechekuti:
Tsvina dzakaoma sematombo makuru nesimbi dzinogona kukuvadza zvakanyanya masikirini ezviparadzanisa zvinozunguzika, madhiri ezvinoparadza, zvinhu zvinorova zvema scourers, uye zvinokanganisa zvakananga kuchengetedzeka kwezvigayo kana vakapinda mumichina yakadzika.
Hutsvina hunochinjika senge twine uye pepa repurasitiki rinoputira zviri nyore kutenderedza mabheya uye mapulley emidziyo yekufambisa, zvichikonzera kuvharika uye kunyangwe kukuvara kwemidziyo.
Kubvisa huwandu hweguruva uye kusvibiswa kwechiedza kunoderedza zvakanyanya kusvibiswa kweguruva muzvikamu zvepasi, kuvandudza nzvimbo yekushanda.
III. Kushanda Nheyo uye Marudzi Makuru
Pre-vachenesi vanonyanya kushandisa musimboti wekusefa, kazhinji wakasanganiswa nemweya wekufema kana kupatsanurwa kwemagineti kuti vabvise tsvina.
Kune marudzi matatu makuru:
1. Vibrating Pre-Cleaner
Eccentric kana vibratory mota inotyaira chidzitiro chepamusoro kuti chiite kudzokororwa kana kutenderera. Izvo zvinhu zvinoenda kumberi mukusvetuka pane iyo skrini. Chidzitiro chepamusoro (rine maapertures akakura) chinochengeta tsvina yakakasharara, nepo yepasi skrini (ine madiki maburi) inochengeta tsanga yakachena; tsvina yakanaka uye guruva zvinowira nepahwindo.
Hunhu: Chimiro chakareruka, hombe yekugadzirisa simba, yakakwirira yekuongorora kunyatsoshanda. Iyi ndiyo sarudzo yemazuva ano, inokodzera zvigayo zvakasiyana-siyana zveupfu, zvikuru zvihombe nepakati-zvakakura.
2. Rotary Drum Pre-Cleaner
Inoratidzira dhiramu repolygonal kana denderedzwa rinotenderera rine maperforations. Ngoma inotenderera zvishoma nezvishoma. Zvinhu zvinopinda mungoma; sezvainotenderera, gorosi rinowira kuburikidza nekuputika, nepo tsvina yakakora inobudiswa kubva kumagumo edhiramu.
Hunhu: Kuvaka kwakasimba, kunoshanda pakubvisa tsvina dzakakomba, kushanda kwakagadzikana. Nekudaro, ine yakakura tsoka uye inokodzera zvimiro zvinoda yakakwira coarse tsvina yekubvisa kunyatsoshanda uye hukuru hwekugadzirisa.
3. Yakasanganiswa Pre-Muchenesa
Zvichienderana nechidzitiro chinozunguza kana chigubhu chidzitiro, chinosanganisa aspiration system uye magineti separator. Iyo aspiration system inobvisa kusvibiswa kwakareruka (guruva, awns, gorosi rakaunyana), uye iyo magnetic separator inobvisa magineti simbi inosvibisa.
Hunhu: Yakabatanidzwa mashandiro, kuchenesa kunoshanda, ine compact tsoka. Inokodzera zvigayo zvehupfu zvemazuva ano zvine mwero wepamusoro we automation.
IV. Working Process
Uchishandisa vibrating pre{0}}cleaner semuenzaniso, maitiro ekushanda ndeaya anotevera:
Infeed: tsanga mbishi inopinda mufeed inlet yepre-chenener kuburikidza nekutakura midziyo uye inogoverwa zvakaenzana pamasikirini.
Kuongorora:
Sikirini Yepamusoro: Mazaru akakura-kazhinji φ8–12 mm kana kuti rectangular slots. Zvinhu zvakakasharara sematombo, shinda, nemashanga hazvipindi; vanongotsvedza kubva pachiratidziro vobuda mutsvina yakakora.
Pazasi Sikirini: Kuvhura kudiki, kazhinji φ2.5–4.0 mm. Gorosi rakachena rinoramba riri pamusoro uye richifamba richienda kunzvimbo yezviyo yakachena. Zvinhu zvakanaka-guruva, matombo madiki, tsanga dzakatsemuka -zvinodonhera uye zvinobva zvabuda sezvishoma.
Aspiration (kana yakashongedzerwa): An aspiration system inoburitsa tsvina yakareruka{{0}maawn, gorosi rakasvava, huruva{1}panguva yekudyisa kana kuvhenekwa, uye inozviunganidza panzvimbo imwe chete.
Magnetic Separation (kana akashongedzerwa): Magnets (achisingaperi kana emagetsi) anogara panzvimbo yekupinza kana yekubuda kuti abate uye abvise magineti simbi simbi.
Discharge: Chenesa hura dzezviyo kumasara kuitira kuchengetwa kwechinguvana. Kusviba kwakakomba, tsvina yakanaka, tsvina shoma, uye tsvina yesimbi chimwe nechimwe chinoenda kunzvimbo dzazvo dzekuunganidza.
V. Key Technical Parameters uye Impact Yavo
Kuita kwepre{0}}chenese kunokanganisa zvakananga kushanda nekugadzikana kwechikamu chose chekuchenesa:
Kugadzirisa Kugona: Inofanirwa kuenderana nechiyero chekugadzira chehupfu. Pa100-ton/day mill, pre-cleaner simba rinowanzoda kuva 120-150 tons/zuva (tichitarisa peak flow).
Screen Aperture Configuration: Sarudzo yeaperture size uye chimiro yakakosha. Kana zvidiki zvakanyanya, masikirini anogona kuvhara, uye imwe tsanga yakachena inogona kuvhenekwa zvisizvo netsvina. Kana yakakurisa, mamwe matsvina akakasharara anogona kupfuura nemumichina yakadzika.
Screening Efficiency: Chikamu chetsvina yakabviswa zvinobudirira kubva pazviyo zvakachena. Muchenesi wepamberi-unoshanda zvakanyanya unofanirwa kubvisa zvinodarika 95% yetsvina yakakasharara uye chikamu chikuru chemarara akajeka.
Kurasika kwezviyo pakurambwa: Chikamu chezviyo zvakachena zvakasanganiswa netsvina yakaraswa. Uyu ndiwo mucherechedzo mukuru wezveupfumi wepre{1}}kuchenesa kuita. Kurasikirwa kwezviyo kwakanyanya kunoratidza kuparara kwezvinhu uye kunoda kugadziriswa kwekushanda.
Kuzvinatsa-Kugona Kuzvichenesa:Kuti zvidzitiro zviri nyore kuvharika uye kana michina yekuchenesa (eg, mabhora anorovera, mabhurashi ekugezesa) ine chekuita nekugadzikana kwekuenderera mberi kwekushanda.
VI. Summary
Kunyangwe zviri nyore mukuvaka, pre{0}yekuchenesa inobata chinzvimbo chisingadzoreki muhuyo:
Equipment Protector: Inoshanda seyekutanga uye yakakosha midziyo yekudzivirira chipingamupinyi, ichinyatso kudzivirira kukuvadzwa kune inotevera inodhura michina (kunyanya roller zvigayo) zvichikonzerwa nekusachena.
Kugadzirwa Kuenderera mberi Muvambisi: Nekubvisa tsvina yakasungirirwa zviri nyore senge twine nepurasitiki sheeting, inova nechokwadi chekushanda kwakagadzikana kweiyo nzira yekufambisa uye kuderedza isina kurongeka yekudzika.
Nheyo yeKushanda Kwemagadzirirwo: Inogadzira mamiriro ekushanda akanaka emidziyo yekuchenesa yakadzika, ichivabvumira kuti vatarise kubvisa tsvina yakafanana nehukuru hwegorosi ("yakafanana-kusvibiswa kwesaizi"), nekudaro ichiwedzera kushanda kwese kwechikamu chekuchenesa.
Nekudimikira, muchenesi -ndiye "goalkeeper" wehupfu. Yakamisikidzwa kumberi kwemaitiro ese ekugadzira, inoshandisa yakasimba uye inoshanda nzira yekuvharira "vapambi" vari pachena uye vane ngozi, ichiisa hwaro hwakasimba hwekushanda kwakachengeteka uye kwakanaka kwese kunotevera kwakanyatso midziyo.
