{"id":649,"date":"2024-06-06T10:47:16","date_gmt":"2024-06-06T02:47:16","guid":{"rendered":"https:\/\/www.cmecsteel.com\/?post_type=products&p=649"},"modified":"2024-08-02T10:41:42","modified_gmt":"2024-08-02T02:41:42","slug":"screening-accessories","status":"publish","type":"products","link":"https:\/\/www.cmecsteel.com\/cs\/products\/screening-accessories\/","title":{"rendered":"Vysoce v\u00fdkonn\u00e9 p\u0159\u00edslu\u0161enstv\u00ed pro pros\u00e9v\u00e1n\u00ed: \u0158e\u0161en\u00ed probl\u00e9m\u016f s \u00fa\u010dinnost\u00ed pros\u00e9v\u00e1n\u00ed v t\u011b\u017eebn\u00edm pr\u016fmyslu"},"content":{"rendered":"

Specifikace produktu<\/span><\/p>\n

Materi\u00e1l: Ocel odoln\u00e1 proti opot\u0159eben\u00ed, syntetick\u00e9 materi\u00e1ly<\/span><\/p>\n

Typ povrchov\u00e9 \u00fapravy: Antikorozn\u00ed povlak<\/span><\/p>\n

Rozsah tolerance: Podle mezin\u00e1rodn\u00edch norem<\/span><\/p>\n

Zp\u016fsob zpracov\u00e1n\u00ed: P\u0159esn\u00e9 lit\u00ed a obr\u00e1b\u011bn\u00ed<\/span><\/p>\n

Kontrola kvality: Certifikace syst\u00e9mu \u0159\u00edzen\u00ed kvality ISO 9001<\/span><\/p>\n

T\u0159\u00edd\u011bn\u00edm se rozum\u00ed proces t\u0159\u00edd\u011bn\u00ed \u010d\u00e1stic pr\u016fchodem materi\u00e1l\u016f ur\u010ditou velikost\u00ed s\u00edtov\u00fdch otvor\u016f na povrchu s\u00edta (s\u00edto, s\u00edtov\u00e1 deska, ty\u010d). Pros\u00e9v\u00e1n\u00ed je v t\u00e9to f\u00e1zi nejpou\u017e\u00edvan\u011bj\u0161\u00ed metodou separace materi\u00e1lu a pou\u017e\u00edv\u00e1 se p\u0159i zpracov\u00e1n\u00ed nerost\u016f, ve stavebnictv\u00ed, metalurgii, chemick\u00e9m pr\u016fmyslu a dal\u0161\u00edch oborech.
\n1. Z\u00e1kladn\u00ed pojmy:
\nP\u0159es\u00ed\u0165ov\u00e1n\u00ed: materi\u00e1ly s velikost\u00ed \u010d\u00e1stic v\u011bt\u0161\u00ed, ne\u017e je velikost otvoru v s\u00edtu, kter\u00e9 z\u016fst\u00e1vaj\u00ed na povrchu s\u00edta;
\nPods\u00edto: materi\u00e1ly s velikost\u00ed \u010d\u00e1stic men\u0161\u00ed, ne\u017e je velikost otvoru s\u00edta v pros\u00e9van\u00e9m materi\u00e1lu, kter\u00e9 proch\u00e1zej\u00ed povrchem s\u00edta;
\nZpracovatelsk\u00e1 kapacita: mno\u017estv\u00ed materi\u00e1lu p\u0159iv\u00e1d\u011bn\u00e9ho na s\u00edto (nebo na jednotku pros\u00e9vac\u00ed plochy) za jednotku \u010dasu;
\n\u00da\u010dinnost pros\u00e9v\u00e1n\u00ed: hmotnostn\u00ed pod\u00edl jemn\u00fdch \u010d\u00e1stic skute\u010dn\u011b z\u00edskan\u00fdch pros\u00e9v\u00e1n\u00edm p\u0159edstavuje hmotnostn\u00ed procento \u010d\u00e1sti materi\u00e1lu s velikost\u00ed \u010d\u00e1stic men\u0161\u00ed, ne\u017e je velikost s\u00edtov\u00e9ho otvoru v pros\u00e9van\u00e9m materi\u00e1lu;
\n2. Spole\u010dn\u00e1 klasifikace:<\/p>\n

Mezi b\u011b\u017en\u011b pou\u017e\u00edvan\u00e1 t\u0159\u00eddic\u00ed za\u0159\u00edzen\u00ed pat\u0159\u00ed p\u0159edev\u0161\u00edm vibra\u010dn\u00ed s\u00edta, pevn\u00e1 s\u00edta, v\u00e1le\u010dkov\u00e1 s\u00edta atd.
\n1. Pevn\u00e9 s\u00edto je t\u0159\u00eddic\u00ed stroj s pevnou a stacion\u00e1rn\u00ed s\u00edtovou plochou. Je um\u00edst\u011bno pod \u00fahlem a materi\u00e1l je naklon\u011bn sm\u011brem k horn\u00edmu konci. Bez jak\u00e9koli vn\u011bj\u0161\u00ed s\u00edly vyu\u017e\u00edv\u00e1 hmotnost rudy k pr\u016fchodu s\u00edtov\u00fdmi otvory a je rozd\u011bleno na dv\u011b \u00farovn\u011b velikosti \u010d\u00e1stic: pods\u00edtn\u00fd materi\u00e1l men\u0161\u00ed ne\u017e s\u00edtov\u00fd otvor a pods\u00edtn\u00fd materi\u00e1l v\u011bt\u0161\u00ed ne\u017e s\u00edtov\u00fd otvor. \u00da\u010dinnost pros\u00e9v\u00e1n\u00ed pevn\u00fdch s\u00edt je pom\u011brn\u011b n\u00edzk\u00e1 a p\u0159i pr\u00e1ci s vysok\u00fdm obsahem visk\u00f3zn\u00ed vody jsou n\u00e1chyln\u00e1 k ucp\u00e1v\u00e1n\u00ed. P\u0159i provozu vy\u017eaduj\u00ed vysokou pracnost. Vzhledem k jejich jednoduch\u00e9 konstrukci, snadn\u00e9 v\u00fdrob\u011b, nulov\u00e9 pot\u0159eb\u011b energie a n\u00edzk\u00fdm n\u00e1klad\u016fm se v\u0161ak hojn\u011b pou\u017e\u00edvaj\u00ed v drtic\u00edch provozech. Lze je rozd\u011blit na m\u0159\u00ed\u017ekov\u00e1 s\u00edta a ty\u010dov\u00e1 s\u00edta (ty\u010dov\u00e1 s\u00edta). M\u0159\u00ed\u017ekov\u00e1 s\u00edta se v\u011bt\u0161inou pou\u017e\u00edvaj\u00ed v horn\u00ed \u010d\u00e1sti z\u00e1sobn\u00edk\u016f pro p\u0159\u00edjem surov\u00e9 rudy a z\u00e1sobn\u00edk\u016f pro hrub\u00e9 drcen\u00ed rudy, p\u0159edev\u0161\u00edm ke kontrole velikosti \u010d\u00e1stic rudy; ty\u010dov\u00e1 s\u00edta: b\u011b\u017en\u011b se pou\u017e\u00edvaj\u00ed k p\u0159edb\u011b\u017en\u00e9mu t\u0159\u00edd\u011bn\u00ed p\u0159ed hrub\u00fdm a st\u0159edn\u00edm drcen\u00edm.<\/p>\n

2. S\u00edtov\u00e1 plocha v\u00e1le\u010dkov\u00e9ho s\u00edta se skl\u00e1d\u00e1 z mnoha rovnob\u011b\u017en\u011b uspo\u0159\u00e1dan\u00fdch v\u00e1le\u010dk\u016f, na kter\u00fdch jsou st\u0159\u00eddav\u011b um\u00edst\u011bny s\u00edtov\u00e9 kotou\u010de. Mezera mezi sousedn\u00edmi v\u00e1lci a kotou\u010di je u tohoto typu s\u00edta s\u00edtov\u00fdm otvorem. V\u00e1lec se ot\u00e1\u010d\u00ed prost\u0159ednictv\u00edm ozuben\u00e9ho kola nebo p\u0159evodovky a sm\u011br jeho ot\u00e1\u010den\u00ed je stejn\u00fd jako sm\u011br toku materi\u00e1lu. V\u00e1le\u010dkov\u00e9 s\u00edto se \u010dasto pou\u017e\u00edv\u00e1 k pros\u00e9v\u00e1n\u00ed hrub\u00fdch materi\u00e1l\u016f, je vhodn\u00e9 k pros\u00e9v\u00e1n\u00ed m\u011bkk\u00fdch a st\u0159edn\u011b tvrd\u00fdch materi\u00e1l\u016f. Jeho v\u00fdhodou je, \u017ee neblokuje s\u00edto, ale jeho nev\u00fdhodou je t\u011b\u017ek\u00e9 za\u0159\u00edzen\u00ed, n\u00edzk\u00e1 \u00fa\u010dinnost pros\u00e9v\u00e1n\u00ed a rychl\u00e9 opot\u0159eben\u00ed v\u00e1lc\u016f.
\n3. B\u011b\u017en\u011b pou\u017e\u00edvan\u00e1 d\u016fln\u00ed vibra\u010dn\u00ed s\u00edta nejsou specifick\u00fdm typem pros\u00e9vac\u00edho za\u0159\u00edzen\u00ed, ale typem, kter\u00fd obvykle zahrnuje setrva\u010dn\u00e1 vibra\u010dn\u00ed s\u00edta, samocentrovac\u00ed vibra\u010dn\u00ed s\u00edta, excentrick\u00e1 vibra\u010dn\u00ed s\u00edta, vibra\u010dn\u00ed s\u00edta s velk\u00fdm zat\u00ed\u017een\u00edm, kruhov\u00e1 vibra\u010dn\u00ed s\u00edta, line\u00e1rn\u00ed vibra\u010dn\u00ed s\u00edta atd. N\u00ed\u017ee se zam\u011b\u0159\u00edme na porovn\u00e1n\u00ed vlastnost\u00ed t\u011bchto typ\u016f vibra\u010dn\u00edch s\u00edt.
\nSetrva\u010dn\u00fd vibra\u010dn\u00ed vibr\u00e1tor je instalov\u00e1n na s\u00edtov\u00e9 sk\u0159\u00edni. Proto\u017ee s\u00edtov\u00e1 sk\u0159\u00ed\u0148 vibruje nahoru a dol\u016f, nestabilita rychlosti p\u0159\u00edsunu rudy ovliv\u0148uje \u00fa\u010dinnost pros\u00e9v\u00e1n\u00ed a kapacita zpracov\u00e1n\u00ed je mal\u00e1, tak\u017ee je vhodn\u00e1 pro st\u0159edn\u00ed a\u017e jemnou klasifikaci.
\n2. Samost\u0159edic\u00ed vibra\u010dn\u00ed s\u00edto (jednoos\u00e9 vibra\u010dn\u00ed s\u00edto) Kdy\u017e samost\u0159edic\u00ed vibra\u010dn\u00ed s\u00edto pracuje, s\u00edto vibruje vysokou rychlost\u00ed, ale prostorov\u00e1 poloha dr\u00e1\u017ekov\u00e9 kladky z\u016fst\u00e1v\u00e1 nezm\u011bn\u011bna, proto se naz\u00fdv\u00e1 samost\u0159edic\u00ed vibra\u010dn\u00ed s\u00edto. Pracuje na stejn\u00e9m principu jako \u010dist\u011b setrva\u010dn\u00e9 vibra\u010dn\u00ed s\u00edto, ale \u0159emenice a p\u0159evodov\u00fd h\u0159\u00eddel maj\u00ed soust\u0159ednou konstrukci. B\u011bhem provozu z\u016fst\u00e1v\u00e1 st\u0159ed \u0159emenice nehybn\u00fd a motor b\u011b\u017e\u00ed plynule. V\u00fdhodou je jednoduch\u00e1 konstrukce, snadn\u00e1 v\u00fdroba, siln\u00e9 vibrace povrchu s\u00edta a vysok\u00e1 \u00fa\u010dinnost pros\u00e9v\u00e1n\u00ed; nev\u00fdhodou je, \u017ee zp\u016fsobuje zna\u010dn\u00e9 vibrace budovy a vy\u017eaduje men\u0161\u00ed zpracovatelskou kapacitu. Vhodn\u00e9 pro st\u0159edn\u00ed a\u017e jemn\u00e9 t\u0159\u00edd\u011bn\u00ed.
\nExistuj\u00ed dva typy s\u00edtov\u00fdch povrch\u016f pro samocentrovac\u00ed vibra\u010dn\u00ed s\u00edta: jednovrstv\u00e9 a dvouvrstv\u00e9. Existuj\u00ed tak\u00e9 dva zp\u016fsoby instalace: zav\u011b\u0161en\u00ed a usazen\u00ed. Z\u00e1v\u011bsn\u00fd typ je zav\u011b\u0161en pomoc\u00ed pru\u017ein na nosn\u00edku, zat\u00edmco sedlov\u00fd typ je zalo\u017een na pru\u017einov\u00e9m sedle. V sou\u010dasn\u00e9 dob\u011b je \u0161iroce pou\u017e\u00edv\u00e1n z\u00e1v\u011bsn\u00fd typ.
\nExcentrick\u00e9 vibra\u010dn\u00ed s\u00edto je typ s\u00edta, kter\u00e9 vibruje na z\u00e1klad\u011b vysokorychlostn\u00edho ot\u00e1\u010den\u00ed excentrick\u00e9ho p\u0159evodov\u00e9ho h\u0159\u00eddele, proto se naz\u00fdv\u00e1 excentrick\u00e9 vibra\u010dn\u00ed s\u00edto. Jeho excentrick\u00e1 osa p\u0159\u00edmo poh\u00e1n\u00ed r\u00e1m s\u00edta, aby vykon\u00e1val trajektorick\u00fd pohyb ve svisl\u00e9 rovin\u011b s amplitudou odpov\u00eddaj\u00edc\u00ed dvojn\u00e1sobku excentricity. Velikost otvoru s\u00edta m\u016f\u017ee dosahovat 100-250 mm a b\u011b\u017en\u011b se pou\u017e\u00edv\u00e1 ve f\u00e1zi p\u0159ed pros\u00e9v\u00e1n\u00edm nebo v prvn\u00ed f\u00e1zi pros\u00e9v\u00e1n\u00ed p\u00edsku a \u0161t\u011brku. V sou\u010dasn\u00e9 dob\u011b se pou\u017e\u00edv\u00e1 z\u0159\u00eddka a v\u011bt\u0161inou se pou\u017e\u00edvaj\u00ed inerci\u00e1ln\u00ed vibra\u010dn\u00ed s\u00edta. V\u00fdhodou je, \u017ee konstrukce je robustn\u00ed, amplituda se p\u0159i zm\u011bn\u011b mno\u017estv\u00ed krmiva nem\u011bn\u00ed, intenzita vibrac\u00ed je velk\u00e1 a konstantn\u00ed a nen\u00ed vhodn\u00e9 s\u00edtov\u00e9 otvory blokovat; nev\u00fdhodou je, \u017ee nosn\u00e1 konstrukce je slo\u017eit\u00e1, s velkou setrva\u010dnost\u00ed a ne\u00fapln\u00e9 vyv\u00e1\u017een\u00ed b\u011bhem provozu m\u016f\u017ee snadno zp\u016fsobit sou\u010dasn\u00e9 vibrace budov.
\n4 vysoce v\u00fdkonn\u00e1 vibra\u010dn\u00ed s\u00edta
\nVhodn\u00e9 pro t\u0159\u00edd\u011bn\u00ed velk\u00fdch a hust\u00fdch rud, s vy\u0161\u0161\u00ed \u00fa\u010dinnost\u00ed t\u0159\u00edd\u011bn\u00ed ne\u017e pevn\u00e1 s\u00edta, ale s vysok\u00fdmi investicemi do za\u0159\u00edzen\u00ed, vhodn\u00e9 pro t\u0159\u00edd\u011bn\u00ed velk\u00fdch blok\u016f.
\n5-kruhov\u00e9 vibra\u010dn\u00ed s\u00edto
\nVibra\u010dn\u00ed s\u00edto s kruhovou trajektori\u00ed, s naklon\u011bn\u00fdm uspo\u0159\u00e1d\u00e1n\u00edm povrchu s\u00edta. Materi\u00e1ly uv\u00edzl\u00e9 v otvorech s\u00edta mohou vysko\u010dit ven a povrch s\u00edta se nesnadno ucp\u00e1v\u00e1, vhodn\u00e9 pro velk\u00e9, st\u0159edn\u00ed a jemn\u00e9 t\u0159\u00edd\u011bn\u00ed.
\n6 Line\u00e1rn\u00ed vibra\u010dn\u00ed s\u00edto
\nPovrch obrazovky je instalov\u00e1n vodorovn\u011b, s p\u0159\u00edmou trajektori\u00ed pohybu. Plocha s\u00edta je velk\u00e1, m\u00e1 silnou amplitudu, vysokou \u00fa\u010dinnost pros\u00e9v\u00e1n\u00ed a velkou kapacitu zpracov\u00e1n\u00ed na jeden stroj; konstrukce je v\u0161ak slo\u017eit\u00e1, drah\u00e1, m\u00e1 vysokou energii a nastaven\u00ed amplitudy je obt\u00ed\u017en\u00e9. Vhodn\u00e9 pro pros\u00e9v\u00e1n\u00ed hrub\u00e9ho, st\u0159edn\u00edho a jemn\u00e9ho kameniva, lze jej tak\u00e9 pou\u017e\u00edt jako odvod\u0148ovac\u00ed a deslimina\u010dn\u00ed za\u0159\u00edzen\u00ed v mokr\u00e9 v\u00fdrob\u011b.<\/p>\n

Kontaktn\u00ed informace pro dotazy t\u00fdkaj\u00edc\u00ed se p\u0159\u00edslu\u0161enstv\u00ed pro prom\u00edt\u00e1n\u00ed<\/span><\/strong><\/p>\n

Dal\u0161\u00ed informace o P\u0159\u00edslu\u0161enstv\u00ed pro prom\u00edt\u00e1n\u00ed<\/strong> nebo z\u00edskat \u0159e\u0161en\u00ed na m\u00edru, kontaktujte n\u00e1s:<\/span><\/p>\n