Yiziphi izindlela zesikrini ezidlidlizayo?
Inqubo lapho impahla ephukile ihlukaniswa ngamasayizi wezinhlayiyana ezihlukene ngesendlalelo esisodwa noma ezimbalwa ze-sieve surface ibizwa ngokuthi i-sieving. Isikrini esidlidlizayo isikrini esidlidlizayo esisebenzisa ukunyakaza okuhlobene phakathi kokusebenza kwenqwaba nendawo yesikrini ukuze senze izinhlayiya ezithile zidlule emigodini yesikrini, futhi kuhlukanise isihlabathi, amatshe, itshe elichotshoziwe nezinye izinto zibe amabanga ahlukene ngokuya ngosayizi wezinhlayiyana.
Inqubo yokuhlola isikrini esidlidlizayo ngokuvamile iyaqhubeka. Ngemva kokuba izinto zokusetshenziswa zokuhlola ziphakelwa emshinini wesikrini odlidlizayo (okubizwa ngokuthi isisefo), izinto ezincane kunosayizi wesisefo zidlula ngesisefo, esibizwa ngokuthi umkhiqizo ongaphansi kwesisefo; impahla enkulu kunosayizi we-sieve idlula ngesihlungo. Ukukhipha okuqhubekayo ebusweni kubizwa ngokuthi umkhiqizo we-over-sieve.
Imishini yesikrini edlidlizayo iyinsiza edingekayo emigqeni yokukhiqiza yasezimayini kanye nokwenza isihlabathi, futhi ukukhethwa kwayo kunomthelela obalulekile kusayizi wezinhlayiyana kanye nokugredwa komkhiqizo wokugcina.
Izinto okufanele zicatshangelwe ekukhetheni isikrini esidlidlizayo:
Izici zezinto ezihlungiwe (okuqukethwe kobukhulu bezinto ezingaphansi kwesisefo, okuqukethwe kobukhulu bezinhlayiya ezinzima-ukusefa, okuqukethwe komswakama nobumba kumpahla, ukuma kwento, amandla adonsela phansi athile ezinto ezibonakalayo, njll.);
Isakhiwo sesikrini esidlidlizayo (indawo yesikrini, inombolo yezendlalelo zesikrini, usayizi nokuma kwembobo yesikrini, isilinganiso sendawo yembobo yesikrini, imodi yokunyakaza yesikrini esidlidlizayo, ubude nobukhulu, njll.);
Izidingo zenqubo yokuzuza (umthamo wokucubungula, ukusebenza kahle kokuhlola, indlela yokuhlola, ukuthambekela kwesikrini esidlidlizayo), njll.
Ngaphezu kokucabangela imiphumela engenhla, lezi zimiso ezilandelayo eziyisisekelo kufanele futhi zibhekwe:
(1) Ngemva kokunquma indawo yokusefa, ububanzi bendawo yesisefo kufanele okungenani buphindwe izikhathi ezingu-2.5 kuya kwezi-3 kunocezu olukhulu lwento ukuze kuvinjelwe isisefo ekuvinjweni yizicucu ezinkulu zempahla.
(2) Ukuze isisefo sibe sesimweni esihle sokusebenza, isilinganiso sobude nobubanzi besisefo kufanele sikhethwe phakathi kobubanzi obungu-2 kuya ku-3.
(3) Izinto zesikrini ezinengqondo kanye nesakhiwo esifanele izimo zokusebenza kufanele kukhethwe.
(4) Ukunqunywa kosayizi wembobo yesisefo. Kumasefa amahle, izisefo ezigobile, nezikrini ezidlidlizayo ezilandelanayo zokuhlola izinhlayiyana ezinhle, usayizi wesisefo uphindwe izikhathi ezingu-2 kuya kwezingu-2.2 kunosayizi wezinhlayiyana zokuhlukanisa, futhi umkhawulo awukho ngaphezu kwezikhathi ezingu-3; ngezikrini ezidlidlizayo, Ukuze kuhlolwe izinto ezinohlamvu olumaphakathi, usayizi wesisefo uphindwe izikhathi ezingu-1.2 kunosayizi wokuhlukanisa; ngezinto ezisanhlamvu, usayizi wesisefo ungu-1.05 wosayizi wokuhlukanisa; ngezisefo okungenzeka, usayizi wesisefo ngokuvamile usayizi wangempela wokuhlukanisa izikhathi ezingu-2 kuya kwezingu-2.5 ubukhulu bezinhlayiyana.
(5) Nquma ukuthi uzosebenzisa izisefo ezinezendlalelo ezimbili noma ezendlalelo eziningi. Uma ububanzi bezinhlayiyana zento okufanele zihlolwe bubanzi, lapho isikrini esinesendlalelo esiphindwe kabili sisetshenziswa njengesikrini esendlalelo esisodwa, umthamo wokucubungula wesikrini esidlidlizayo ungathuthukiswa, futhi isikrini esiphansi singavikelwa, ukuze impilo yesevisi yesikrini esiphansi inganwetshwa. Ukukhethwa kosayizi we-mesh wesikrini esingaphezulu sesikrini esinezendlalelo ezimbili kufanele ngokuvamile kunqunywe ngokuya nezici zosayizi wezinhlayiya zensimbi, futhi usayizi wezinhlayiyana zempahla olingana no-55-65% yenani lokuphakelayo langempela lingacatshangelwa. njengembobo yesikrini ngokwenani elingaphansi kwesikrini sesikrini esingaphezulu. usayizi.
Qaphela ukuthi uma okuqukethwe kwezinhlayiyana ezingaphansi kwesisefo kumpahla eluhlaza kudlula u-50%, kunezinhlayiya eziningi okunzima ukuzisefa, futhi impahla inodaka oluningi olubonakalayo nokuqukethwe kwamanzi amaningi, zama ukugwema ukusebenzisa kabili- izisefo zongqimba njengezisefo zongqimba olulodwa.
(6) Thola indawo yokusebenza ephumelelayo yesisefo. Indawo yokusefa ebalwa ngokwezidingo zenqubo yokukhiqiza iyindawo ephumelelayo yesisefo, futhi ukucaciswa kwesisefo kuyindawo ebizwa ngokuthi isisefo. Ukuze uthole izikrini ezidlidlizayo ezisetshenziselwa ukuhlola izinto ezinosayizi omaphakathi, indawo yokusefa ephumelelayo kufanele ibe ngu-0.8 kuya ku-0.85 wendawo yokulinganisa yesisefo. izikhathi. Yiqiniso, lokhu kuhlobene eduze nesilinganiso sokuvula izimbobo ze-sieve endaweni yesihlungo.
(7) Okwezinto ezibonakalayo ezingaphezu kuka-200mm, izikrini ezidlidlizayo ezisindayo zisetshenziswa kakhulu; ngezinto zokwakha ezingaphezu kuka-10mm, izikrini ezinyakazayo eziyindilinga zisetshenziswa kakhulu; izikrini ezidlidlizayo ezinomugqa kanye nezikrini zokudlidliza ezinemvamisa ephezulu zisetshenziselwa kakhulu ukwehlisa, ukuphelelwa amanzi emzimbeni kanye nokuhlukanisa.
(8) Uma izimo zivuma, izikrini zezihlalo kufanele zinconywe ukuze kube lula ukuhlolwa nokunakekelwa. Uma isikrini esilengayo kufanele sikhethwe, ubude bokuphakamisa kufanele buncishiswe ngangokunokwenzeka ukuze kuncishiswe ububanzi bokushwibeka kwesikrini esidlidlizayo futhi kube lula ukusebenza kokukhiqiza.
Ngamafuphi, lapho ukhetha isikrini esidlidlizayo, akufanele ucabangele isizathu esisodwa kuphela, kodwa ucabangele ngokugcwele izici ezihlukahlukene ukuze uqiniseke ukuthi ukhetha okokusebenza okuhambisana nezimo zakho zokusebenza.
