I-Plansifter iwumgogodla, inhliziyo, yesigaba sokugaya endaweni yokugaya ufulawa yesimanje. Ubuchule bayo bokusebenza bunquma ngokuqondile izinga lokukhishwa kwesigayo, umthamo wokukhiqiza, ikhwalithi yomkhiqizo, nokuzinza kokukhiqiza.
Uma isigayo se-roller "inguchwepheshe wokuchoboza," khona-ke i-Plansifter "iyinkosi yokuhlunga ngokunemba." Imininingwane elandelayo ngokusebenza kwayo emshinini wokugaya ufulawa.
I. Inhloso Eyinhloko: Ukusefa kanye Nokwehlukanisa
Umgomo oyinhloko we-Plansifter uwukusefa ngokuqhubekayo, ngempumelelo, nangokunembile futhi ukuhlukanisa "isitokwe esiphansi" kusukela kumishini yokugaya (okungukuthi, ingxube yeposi{2}}yokugaya equkethe izinhlayiya zikafulawa ezinosayizi abahlukahlukene, i-bran, izinhlayiya ze-endosperm, njll.).
Ukukhipha Ufulawa Ophelile:Ihlukanisa izinhlayiya zikafulawa ezinhle kakhulu,{0}}ezivumelanayo (okuvame ukubizwa ngokuthi "i-mesh" noma "μm") engxubeni, iziqondise njengofulawa oqediwe kunqubo elandelayo (isb, ukulawula isisefo, ukupakisha, noma ukuhlanganisa ufulawa).
Ukwahlukaniswa Kwezinto:Ihlukanisa izinhlayiya ezinkulu ezingakalungi ngokwanele ukuba zibe ufulawa zibe amabanga ahlukene ngokusekelwe kusayizi nekhwalithi (isb, okuqukethwe kwebran), njengalezi:
I-Semolina / I-Coarse Middlings:Izinhlayiya ezinkulu, ezimsulwa ze-endosperm.
I-Fine Bran/I-Coarse Bran:Izinhlayiya zamagatsha ezithwele inani elincane le-endosperm.
I-Coarse Bran:Ama-bran flakes amakhulu.
Ukusabalalisa Okubalulekile:Ihambisa ngokunembile umfudlana ngamunye ohlukanisiwe ukuya emshinini wayo olandelayo wokucubungula, ngaleyo ndlela yakhe konke ukugeleza kokugaya.
II. Isikhundla Neqhaza Ekugelezeni Kwenqubo Yokugaya
I-Plansifter ayisebenzi yodwa. Ibhangqwe nezigayo ukuze zenze ama-loop units "wokugaya{1}}wokuhlunga". Yonke inqubo yokugaya iwuchungechunge lwamayunithi anjalo axhumene.
Iluphu Yenqubo Ejwayelekile:
I-Roller Mill (Ukugaya) → I-Plansifter (Ukuhlunga/Ukuhlukanisa) → Ukusakaza Okuhlukanisiwe → Kuthunyelwe ngokulandelana-Ama-Roller Mills noma Izihlanzi zesiteji ezilandelayo → Ukugaya Kabusha → Buyela Ku-Plansifter...
Lo mjikelezo uyaphinda, usebenza njengomugqa wokuhlanganisa onembayo, ukhumula kancane kancane futhi ucwenge i-endosperm kakolweni kusuka kubran.
Isakhiwo Sesistimu:Kumshini wokugaya kafulawa wamathani angu-100/ngosuku, ama-Plansifter amaningi ngokuvamile aphatha ukusefa "amasistimu" ahlukene, isibonelo:
Break System Plansifters:Ukucubungula okubalulekile kusuka kumaroli ekhefu lakuqala. Imisebenzi yabo eyinhloko ukudonsa inqwaba kafulawa wekhwalithi kanye nokuhlukanisa i-bran kumahhadlahhadla kanye nama-middlings amancane.
Ama-Plansifters Esistimu Yokunciphisa:Ukucubungula impahla kusuka kumaroli ancishisiwe. Umsebenzi wabo ukugaya nokusefa i-endosperm emsulwa ukuze kukhishwe{1}ufulawa wezinga eliphezulu.
I-Sizing System Plansifters:Cubungula okubalulekile kusuka kumaroli wokulinganisa. Umsebenzi wabo ukwelapha izinhlayiya ze-endosperm nge-bran encane enamathiselwe, ukuze kuhlanjululwe futhi kukhishwe ufulawa.
III. Isimiso Sokusebenza Nezici Zesakhiwo
I-Plansifter (igama eligcwele: High Square Horizontal Plansifter) ithola igama layo ekhabetheni layo elide, eliyisikwele{0}}njengesakhiwo, esipakishwe ngaphakathi ngezendlalelo eziningi zamafreyimu esisefo abekwe ngokuvundlile.
Isakhiwo esiyinhloko:
Ikesi le-Sieve:Isakhiwo sensimbi eside ngaphakathi sihlukaniswe "amakamelo."
Sieve Frames:Izingxenye zokusebenza eziyinhloko. Uhlaka ngalunye luphethe izisefo (usilika noma inayiloni) osayizi abathile bemeshi, ezinosayizi wokumboza ngokuvamile aba bacoleke kusuka phezulu kuya phansi. Izinto zihamba ngaphakathi kwamafreyimu; izinhlayiya ezincane kunombobo "zidlula," kuyilapho ezinkulu "ziyagcinwa."
I-Drive Mechanism:Ivamise ukunikwa amandla yinjini emile phezulu, ekhiqiza ukunyakaza okujikelezayo kwendiza (okufana nokudweba imibuthano) ngezisindo ze-offset. Lokhu kunyakaza kusabalalisa ngokulinganayo okubalulekile phezu kwendawo yesisefo ukuze kuthinteke kahle nezimbobo kuyilapho kugwenywa ukubhampa okuqondile (okungaphazamisa ukuhlukaniswa okuzuziwe).
Inqubo yokusebenza:
Ukondla:Isitokwe esiphansi singena sisuka phezulu, sisatshalaliswa emakamelweni ahlukene nezindlela zokuhlunga.
Ukuhlunga -okuningi:Okubalulekile kuhamba ngezendlalelo zesisefo ngokulandelana ngaphansi kokunyakaza okujikelezayo.
Ukuhlukaniswa nokuqoqwa:Isisefo ngasinye sihlukanisa i-material ibe "i-overtails" (egciniwe) kanye "nokungena" (kudlulisiwe). Ukweqa kanye nokudlula okuvela ezingqimbeni nasezindleleni ezahlukene kuqoqwa ngamashaneli angaphakathi.
Ukukhipha:Ekugcineni, imifudlana eminingi yezinto ezihlukanisiwe (isb, uhlobo olulodwa lukafulawa, izinhlobo ezimbili ze-semolina, uhlobo olulodwa lwebran) ziphuma ngesikhathi esisodwa ezindaweni ezihlukahlukene ezingaphansi futhi zithuthwa ngokunembile ngamapayipi womoya ziye ezindaweni zazo ngokulandelana kwazo.
IV. Amapharamitha Abalulekile Wezobuchwepheshe kanye nomthelela
Ukusebenza kwe-planifter kusho ukusebenza kahle kwayo yonke inqubo yokugaya:
Indawo yokuhlunga:Indawo enkulu ikhulisa umthamo futhi iqinisekisa ukusefa okuphelele. Ukupakishwa-kwezendlalelo eziningi ze-Plansifter kunikeza indawo enkulu yokuhlunga ngaphakathi kwendawo ehlangene, inzuzo yakhona enkulu.
Ukucushwa kwesisefo:Ukukhethwa nokuhlelwa kwamameshe esisefo (ukubalwa kwemeshi, impahla) kuwumphefumulo womklamo wenqubo. Inquma ngokuqondile ukunemba kwezigaba, izilinganiso zokukhishwa kwemifudlana ehlukahlukene, nekhwalithi kafulawa.
Ukusebenza Kokuhlunga:Iphesenti-kafulawa okwazi ukusebenza ngesisefo okhishiwe. Ukusebenza kahle okuphezulu kusho ukukhishwa okuphezulu, ukunciphisa ukujikeleza kabusha kwempahla okungadingekile, ngaleyo ndlela kukhuphule izinga lokukhipha kanye nokuphumayo.
Isivinini kanye ne-Eccentricity:Nquma isivinini sokunyakaza kwento kanye ne-trajectory kusihlungi, okuthinta imiphumela yokuhlunga nokugeleza. Lokhu kudinga ukulungiswa okusekelwe ezicini zezinto ezibonakalayo ezahlukene.
V. Isifinyezo: "Isikhungo Sezinqumo" Senqubo Yokugaya
Indima ye-Plansifter ingaqondwa ngendlela engokomfanekiso:
Ihabhu yezokuthutha:Iqondisa okuthunyelwe-ukugaya "ithrafikhi exubile" (isitoko esiphansi) "emizileni" ehlukene ngokusekelwe "kuhlobo lwemoto nendawo oya kuyo" (usayizi wezinhlayiyana nekhwalithi), iqinisekisa ukuthi ukusakaza ngakunye kuqhubeka ngendlela efanele ukuya esitobhini esilandelayo.
Indawo Yokulawula Ikhwalithi:Ngokuhlukaniswa okunembile, kuqinisekisa kuphela i-endosperm emsulwa engena ohlelweni lokunciphisa, okuvumela ukukhiqizwa{0}}kofulawa womlotha-ophezulu, ophansi. Kuphinde kuvimbele ngaphezu{3}}ukugaywa kukafulawa, ukuvikela ukuhlanzeka kukafulawa.
Ukhiye Wokuphumayo Nenzuzo:Umthamo wokusefa we-Plansifter ungenye yezingqinamba eziyinhloko zokwandisa okuphumayo kwesigayo. Ukusebenza kwayo okuphumelelayo, okuzinzile kubalulekile ekuzuzeni umthamo oklanyiwe kanye nezinga lokukhipha.
Ngaphandle kwe-Plansifter, ukukhiqizwa okuphumelelayo, okunembayo nokuqhubekayo kwesigayo sikafulawa sesimanje bekungeke kwenzeke. Imile ithule emshinini wokugaya, yenza "iziqondiso zokuhlunga" eziyinkimbinkimbi futhi ezinembile ngezinkulungwane zezikhala zangaphakathi zesisefo. Ingenye yezixhumanisi eziwumgogodla ezigxile kakhulu kwezobuchwepheshe ohambweni lwesigayo sikafulawa ukusuka "ekugayeni" kuya "kumkhiqizo oqediwe."
