{"id":197,"date":"2026-07-09T08:51:57","date_gmt":"2026-07-09T08:51:57","guid":{"rendered":"https:\/\/industrialelectricmotor.net\/?p=197"},"modified":"2026-07-09T08:51:57","modified_gmt":"2026-07-09T08:51:57","slug":"vfd-motor-for-ball-mill-and-grinding-mill","status":"publish","type":"post","link":"https:\/\/industrialelectricmotor.net\/sk\/vfd-motor-for-ball-mill-and-grinding-mill\/","title":{"rendered":"VFD motor pre gu\u013eov\u00fd mlyn a mlyn na br\u00fasenie"},"content":{"rendered":"
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Korea Ever-Power \u00b7 S\u00e9ria YVF2 \u00b7 Sprievodca pohonom gu\u013eov\u00e9ho mlyna a mlyna na mletie<\/span><\/p>\n

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VFD motor pre gu\u013eov\u00fd mlyn a mlyn na br\u00fasenie:
\nKritick\u00e1 r\u00fdchlos\u0165, rozbehov\u00fd kr\u00fatiaci moment a v\u00fdber pohonu fr\u00e9zky<\/span><\/h1>\n

Gu\u013eov\u00e9 mlyny, ty\u010dov\u00e9 mlyny, mlyny SAG a laborat\u00f3rne mlecie mlyny klad\u00fa jedny z najn\u00e1ro\u010dnej\u0161\u00edch po\u017eiadaviek na motory v priemyselnom spracovan\u00ed: ve\u013emi vysok\u00fd rozbehov\u00fd kr\u00fatiaci moment na prekonanie zotrva\u010dnosti plne nabit\u00e9ho mlyna, definovan\u00e9 kritick\u00e9 ot\u00e1\u010dky, ktor\u00e9 sa nikdy nesm\u00fa prekro\u010di\u0165, regul\u00e1cia ot\u00e1\u010dok pomocou frekven\u010dn\u00e9ho meni\u010da (VFD) na optimaliz\u00e1ciu \u00fa\u010dinnosti mletia pre r\u00f4zne vstupn\u00e9 materi\u00e1ly a \u0161pecifik\u00e1cie produktov a nepretr\u017eit\u00fa prev\u00e1dzku S1 pre 24-hodinov\u00fa prev\u00e1dzku v cement\u00e1r\u0148ach, ban\u00edctvach a z\u00e1vodoch na spracovanie nerastov. Invertorov\u00e9 motory Korea Ever-Power YVF2 s n\u00faten\u00fdm chladen\u00edm IC416 s\u00fa spr\u00e1vnou \u0161pecifik\u00e1ciou motora pre aplik\u00e1cie gu\u013eov\u00fdch mlynov a mlec\u00edch mlynov poh\u00e1\u0148an\u00fdch VFD, ktor\u00e9 vy\u017eaduj\u00fa regul\u00e1ciu premenliv\u00fdch ot\u00e1\u010dok a pln\u00fd kr\u00fatiaci moment od nuly po menovit\u00e9 ot\u00e1\u010dky.<\/p>\n

Vysok\u00fd \u0161tartovac\u00ed kr\u00fatiaci moment<\/span>
\nRiadenie kritickej r\u00fdchlosti<\/span>
\nIC416 S1 Nepretr\u017eit\u00fd<\/span>
\nIzol\u00e1cia triedy H<\/span>
\n0,75 \u2013 200 kW<\/span><\/div>\n<\/div>\n<\/div>\n

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2,5\u00d7 T<\/div>\n
Po\u017eiadavka na rozbehov\u00fd kr\u00fatiaci moment<\/div>\n<\/div>\n
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65\u201380%<\/div>\n
Prev\u00e1dzkov\u00fd rozsah kritick\u00fdch ot\u00e1\u010dok<\/div>\n<\/div>\n
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IC416<\/div>\n
Pln\u00fd kr\u00fatiaci moment pri akejko\u013evek r\u00fdchlosti<\/div>\n<\/div>\n
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S1 24 hod.<\/div>\n
Nepretr\u017eit\u00e1 prev\u00e1dzka mlyna<\/div>\n<\/div>\n
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0\u2013120 Hz<\/div>\n
Rozsah optimaliz\u00e1cie r\u00fdchlosti<\/div>\n<\/div>\n<\/div>\n

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\"YVF2<\/p>\n
Invertorov\u00fd motor Korea Ever-Power YVF2 pre pohony gu\u013eov\u00fdch mlynov a mlec\u00edch mlynov \u2013 d\u00fachadlo s n\u00faten\u00fdm chladen\u00edm IC416 udr\u017eiava pln\u00fd menovit\u00fd kr\u00fatiaci moment od nuly do menovit\u00fdch ot\u00e1\u010dok, \u010do umo\u017e\u0148uje vysok\u00fd \u0161tartovac\u00ed kr\u00fatiaci moment potrebn\u00fd na rozto\u010denie plne nabit\u00e9ho gu\u013eov\u00e9ho mlyna z pokoja a regul\u00e1ciu premenlivej r\u00fdchlosti potrebn\u00fa na prev\u00e1dzku s optim\u00e1lnym percentom kritickej r\u00fdchlosti pre r\u00f4zne typy r\u00fad a mlecie ciele.<\/div>\n<\/div>\n

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Obsah<\/div>\n
1. Kritick\u00e1 r\u00fdchlos\u0165 gu\u013eov\u00e9ho mlyna<\/a>
\n2. Po\u017eiadavka na \u0161tartovac\u00ed kr\u00fatiaci moment<\/a>
\n3. Pre\u010do regul\u00e1cia ot\u00e1\u010dok pomocou frekven\u010dn\u00e9ho meni\u010da zlep\u0161uje br\u00fasenie<\/a>
\n4. V\u00fdpo\u010det v\u00fdkonu motora mlyna<\/a>
\n5. S1 Trval\u00e1 prev\u00e1dzka a tepeln\u00e9 zn\u00ed\u017eenie v\u00fdkonu<\/a>
\n6. \u0160pecifik\u00e1cie YVF2 pre pohony mlynov<\/a>
\n7. Aplik\u00e1cie gu\u013eov\u00fdch mlynov a mlynov na mletie<\/a>
\n8. \u010casto kladen\u00e9 ot\u00e1zky<\/a><\/div>\n<\/div>\n

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1. Kritick\u00e1 r\u00fdchlos\u0165 a prev\u00e1dzkov\u00e1 r\u00fdchlos\u0165 gu\u013eov\u00e9ho mlyna<\/h2>\n

Kritick\u00e1 r\u00fdchlos\u0165 gu\u013eov\u00e9ho mlyna je r\u00fdchlos\u0165 ot\u00e1\u010dania, pri ktorej sa odstrediv\u00e1 sila p\u00f4sobiaca na mlecie m\u00e9di\u00e1 (gule) rovn\u00e1 gravita\u010dnej sile, \u010do sp\u00f4sobuje, \u017ee gule sa ot\u00e1\u010daj\u00fa spolu s pl\u00e1\u0161\u0165om mlyna, a nie \u017ee sa prevraciaj\u00fa a padaj\u00fa cez vs\u00e1dzku. Pri kritickej r\u00fdchlosti nedoch\u00e1dza k \u017eiadnemu mletiu \u2013 gule s\u00fa pritla\u010den\u00e9 k pl\u00e1\u0161\u0165u a vs\u00e1dzka sa ot\u00e1\u010da ako pevn\u00e9 teleso. V\u0161etky gu\u013eov\u00e9 mlyny musia pracova\u0165 pod kritickou r\u00fdchlos\u0165ou.<\/p>\n

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Vzorec kritickej r\u00fdchlosti a prev\u00e1dzkov\u00fd rozsah<\/div>\n
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Vzorec pre kritick\u00fa r\u00fdchlos\u0165:<\/div>\n
Nc = (42,3 \/ \u221aD) ot.\/min
\nkde D = vn\u00fatorn\u00fd priemer mlyna v metroch<\/p>\n

Pr\u00edklad \u2013 gu\u013eov\u00fd mlyn s priemerom 1,2 m:
\nNc = 42,3 \/ \u221a1,2 = 42,3 \/ 1,095 = 38,6 ot.\/min<\/p>\n

Pr\u00edklad \u2013 gu\u013eov\u00fd mlyn s priemerom 3,0 m:
\nNc = 42,3 \/ \u221a3,0 = 42,3 \/ 1,732 = 24,4 ot.\/min<\/p><\/div>\n<\/div>\n

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V\u00fdber prev\u00e1dzkovej r\u00fdchlosti:<\/div>\n
Gu\u013eov\u00e9 mlyny na mokr\u00e9 mletie: 65\u201375% z Nc
\nGu\u013eov\u00e9 mlyny na such\u00e9 mletie: 70\u201380% z Nc
\nSAG mlyny: 75\u201385% z Nc<\/p>\n

Fr\u00e9za 1,2 m pri 70% Nc: 38,6 \u00d7 0,70 = 27,0 ot.\/min.
\n3,0 m fr\u00e9za pri 72% Nc: 24,4 \u00d7 0,72 = 17,6 ot.\/min<\/p>\n

VFD umo\u017e\u0148uje nastavenie prev\u00e1dzkovej r\u00fdchlosti v re\u00e1lnom \u010dase od 60% do 80% Nc pre optimaliz\u00e1ciu zmeny tvrdosti rudy alebo cie\u013eov\u00e9ho produktu.<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n

V\u00fdstupn\u00e1 r\u00fdchlos\u0165 hriade\u013ea z hnacieho motora mlyna a prevodovky mus\u00ed zodpoveda\u0165 po\u017eadovan\u00fdm prev\u00e1dzkov\u00fdm ot\u00e1\u010dkam mlyna. Pri meni\u010di s frekvenciou (VFD) je frekvencia motora (a teda aj r\u00fdchlos\u0165 mlyna) plynule nastavite\u013en\u00e1, \u010do umo\u017e\u0148uje obsluhe optimalizova\u0165 percento kritickej r\u00fdchlosti pre skuto\u010dne mlet\u00fa rudu. Bez VFD mlyn be\u017e\u00ed s pevnou \u010das\u0165ou kritickej r\u00fdchlosti ur\u010denou pevn\u00fdm prevodov\u00fdm pomerom \u2013 \u010do je prijate\u013en\u00e9 pre oper\u00e1cie s jednou rudou, ale neflexibiln\u00e9 pre z\u00e1vody na spracovanie nerastov s variabilnou rudou.<\/p>\n<\/div>\n

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2. Po\u017eiadavka na rozbehov\u00fd kr\u00fatiaci moment pre pohony gu\u013eov\u00fdch mlynov<\/h2>\n
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Probl\u00e9m s kr\u00fatiacim momentom pri m\u0155tvom \u0161tarte<\/div>\n

Ke\u010f sa gu\u013eov\u00fd mlyn zastav\u00ed s plnou d\u00e1vkou mlec\u00edch g\u00fa\u013e a rudy, gule sa usadia a zhlukn\u00fa v najni\u017e\u0161om bode pl\u00e1\u0161\u0165a mlyna. Statick\u00e9 trenie medzi gu\u013eami a v\u00fdstelkou mlyna v kombin\u00e1cii s gravita\u010dn\u00fdm za\u0165a\u017een\u00edm usadenej vs\u00e1dzky vytv\u00e1ra ve\u013emi vysok\u00fd rozbehov\u00fd kr\u00fatiaci moment \u2013 \u200b\u200bzvy\u010dajne 2,0 a\u017e 2,5-n\u00e1sobok menovit\u00e9ho prev\u00e1dzkov\u00e9ho kr\u00fatiaceho momentu. Tento rozbehov\u00fd kr\u00fatiaci moment mus\u00ed by\u0165 zabezpe\u010den\u00fd bez po\u0161kodenia vinutia motora nadmern\u00fdm rozbehov\u00fdm pr\u00fadom.<\/p>\n<\/div>\n

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Zv\u00fd\u0161enie kr\u00fatiaceho momentu pomocou VFD pre \u0161tartovanie gu\u013eov\u00e9ho mlyna<\/div>\n

Ke\u010f je motor YVF2 poh\u00e1\u0148an\u00fd meni\u010dom frekvencie (VFD) so zv\u00fd\u0161en\u00edm kr\u00fatiaceho momentu alebo vektorov\u00fdm riaden\u00edm, VFD dok\u00e1\u017ee doda\u0165 \u0161tartovac\u00ed kr\u00fatiaci moment motora 1,5 a\u017e 2,0-n\u00e1sobok menovit\u00e9ho kr\u00fatiaceho momentu pri nulov\u00fdch ot\u00e1\u010dkach bez prekro\u010denia menovit\u00e9ho pr\u00fadu motora. Toto sa dosiahne zv\u00fd\u0161en\u00edm magnetick\u00e9ho toku motora meni\u010dom frekvencie (prostredn\u00edctvom vy\u0161\u0161ieho pomeru V\/Hz pri n\u00edzkej frekvencii), aby sa po\u010das \u0161tartovacej sekvencie vytvoril dodato\u010dn\u00fd kr\u00fatiaci moment. Vinutie YVF2 triedy H zvl\u00e1da tento zv\u00fd\u0161en\u00fd magnetick\u00fd tok pri n\u00edzkych ot\u00e1\u010dkach bez izola\u010dn\u00e9ho nam\u00e1hania. Bezsn\u00edma\u010dov\u00e9 vektorov\u00e9 riadenie VFD poskytuje najpresnej\u0161iu regul\u00e1ciu \u0161tartovacieho kr\u00fatiaceho momentu pre aplik\u00e1cie gu\u013eov\u00fdch mlynov.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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3. Pre\u010do regul\u00e1cia ot\u00e1\u010dok pomocou frekven\u010dn\u00e9ho meni\u010da zlep\u0161uje \u00fa\u010dinnos\u0165 br\u00fasenia<\/h2>\n
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Optimaliz\u00e1cia tvrdosti rudy<\/div>\n

Tvrd\u0161ie rudy vy\u017eaduj\u00fa, aby gu\u013eov\u00e1 vs\u00e1dzka padala z v\u00e4\u010d\u0161ieho uhla, \u010do znamen\u00e1, \u017ee mlyn pracuje s vy\u0161\u0161\u00edm percentom kritickej r\u00fdchlosti (72 a\u017e 781 TP3T Nc pre tvrd\u00fa rudu). M\u00e4k\u0161ie rudy sa mel\u00fa efekt\u00edvnej\u0161ie pri ni\u017e\u0161ej r\u00fdchlosti (62 a\u017e 681 TP3T Nc). Mlyn s pevnou r\u00fdchlos\u0165ou pre tvrd\u00fa rudu pracuje pri spracovan\u00ed m\u00e4k\u0161ej rudy s nadmernou r\u00fdchlos\u0165ou (a nadmernou spotrebou energie). Pohon frekven\u010dn\u00fdch meni\u010dov umo\u017e\u0148uje obsluhe zn\u00ed\u017ei\u0165 r\u00fdchlos\u0165 mlyna pre obdobia m\u00e4k\u0161ej rudy, \u010d\u00edm sa u\u0161etr\u00ed 10 a\u017e 201 TP3T energie pohonu mlyna.<\/p>\n<\/div>\n

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Zn\u00ed\u017ete opotrebovanie gu\u013e\u00f4\u010dky a vlo\u017eky<\/div>\n

Prev\u00e1dzka pri r\u00fdchlosti vy\u0161\u0161ej, ako je optim\u00e1lna pre dan\u00fd typ rudy, sp\u00f4sobuje, \u017ee gule a vlo\u017eky nar\u00e1\u017eaj\u00fa silnej\u0161ie, ako je potrebn\u00e9, \u010do ur\u00fdch\u013euje opotrebovanie. Zn\u00ed\u017eenie r\u00fdchlosti mlyna o 5% z optim\u00e1lnej hodnoty pre dan\u00fa rudu m\u00f4\u017ee zn\u00ed\u017ei\u0165 spotrebu gu\u013e\u00f4\u010dok o 8 a\u017e 12% a opotrebovanie vlo\u017eky o 5 a\u017e 8%, \u010d\u00edm sa pred\u013a\u017eia intervaly \u00fadr\u017eby a zn\u00ed\u017eia n\u00e1klady na spotrebn\u00fd materi\u00e1l. Nastavenie frekven\u010dn\u00e9ho meni\u010da na optim\u00e1lnu r\u00fdchlos\u0165 zabezpe\u010duje toto zn\u00ed\u017eenie opotrebenia bez obetovania priepustnosti.<\/p>\n<\/div>\n

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M\u00e4kk\u00fd \u0161tart zni\u017euje mechanick\u00e9 nam\u00e1hanie<\/div>\n

Priame sp\u00fa\u0161\u0165anie motorov ve\u013ek\u00fdch gu\u013eov\u00fdch mlynov sp\u00f4sobuje vysok\u00fd n\u00e1razov\u00fd pr\u00fad (5 a\u017e 7-n\u00e1sobok menovit\u00e9ho) a vysok\u00e9 mechanick\u00e9 r\u00e1zy na prevodovku a teleso mlyna, ke\u010f motor dosahuje ot\u00e1\u010dky. Sp\u00fa\u0161\u0165anie pomocou frekven\u010dn\u00e9ho meni\u010da (VFD) zr\u00fdchli motor z nuly na prev\u00e1dzkov\u00e9 ot\u00e1\u010dky v priebehu 5 a\u017e 15 sek\u00fand, \u010d\u00edm eliminuje n\u00e1razov\u00fd pr\u00fad a zni\u017euje kr\u00fatiaci moment na prevodovke o 60 a\u017e 801 TP3T. T\u00fdm sa predl\u017euje \u017eivotnos\u0165 prevodovky a zni\u017euje sa frekvencia po\u0161kodenia zubov ozuben\u00fdch kolies a lo\u017e\u00edsk prevodovky pri \u0165a\u017ek\u00fdch \u0161tartoch.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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4. V\u00fdpo\u010det v\u00fdkonu motora gu\u013eov\u00e9ho mlyna<\/h2>\n
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Bond Formula \u2014 gu\u013eov\u00fd mlyn s priemerom 1,2 m \u00d7 d\u013a\u017ekou 1,5 m<\/div>\n
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Vzh\u013eadom na:<\/div>\n
Priemer mlyna D = 1,2 m
\nD\u013a\u017eka mlyna L = 1,5 m
\nN\u00e1pl\u0148 gu\u013e\u00f4\u010dok: 30% objemu mlyna
\nHustota gu\u013e\u00f4\u010dky: 7 800 kg\/m\u00b3 (oce\u013e)
\nPosuv F80 = 6 000 \u03bcm; Produkt P80 = 150 \u03bcm
\nIndex pevnosti v tavenine Wi = 14 kWh\/t (stredn\u00e1 tvrdos\u0165)
\nPrietok pod\u00e1vania: 2,0 t\/h<\/div>\n<\/div>\n
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V\u00fdpo\u010det v\u00fdkonu:<\/div>\n
V\u00e4zba W = 10 \u00d7 Wi \u00d7 (P80\u207b\u00bd \u2212 F80\u207b\u00bd) = 10 \u00d7 14 \u00d7 (0,00816 \u2212 0,00041)
\nW = 140 \u00d7 0,00775 = 1,085 kWh\/t
\nV\u00fdkon mlyna = 1,085 \u00d7 2,0 t\/h = 2,17 kW na pl\u00e1\u0161ti mlyna
\nPri \u00fa\u010dinnosti pohonu 0,92: v\u00fdkon motora = 2,17 \u00f7 0,92 = 2,36 kW
\nS faktorom rozbehov\u00e9ho kr\u00fatiaceho momentu 2,5: \u0161pi\u010dkov\u00fd v\u00fdkon motora = 5,9 kW
\n\u2192 Pre rozbeh vyberte YVF2 4-p\u00f3lov\u00fd 3,0 kW IC416 (v prev\u00e1dzke) so zv\u00fd\u0161en\u00edm kr\u00fatiaceho momentu meni\u010da frekvencie na 2,5\u00d7<\/strong><\/div>\n<\/div>\n<\/div>\n<\/div>\n

Bondov vzorec poskytuje odhad \u0161pecifickej mlecej energie pre dimenzovanie mlyna. Pre presn\u00fd v\u00fdber motora na ve\u013ek\u00fdch priemyseln\u00fdch gu\u013eov\u00fdch mlynoch nad 30 kW pou\u017eite kompletn\u00fd Bondov v\u00fdpo\u010det s korek\u010dn\u00fdmi faktormi pre priemer mlyna, ve\u013ekos\u0165 vstupn\u00e9ho materi\u00e1lu, ve\u013ekos\u0165 produktu a index spracovania rudy. Spolo\u010dnos\u0165 Korea Ever-Power odpor\u00fa\u010da pou\u017ei\u0165 na vypo\u010d\u00edtan\u00fd v\u00fdkon motora pre pohony mlynov s frekven\u010dn\u00fdm meni\u010dom servisn\u00fd faktor 1,25, aby sa zoh\u013eadnila neistota modelu a variabilita procesu.<\/p>\n<\/div>\n

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5. S1 Nepretr\u017eit\u00e1 prev\u00e1dzka a tepeln\u00e9 aspekty<\/h2>\n
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S1 Prev\u00e1dzka pre nepretr\u017eit\u00fa prev\u00e1dzku mlyna<\/div>\n

Priemyseln\u00e9 gu\u013eov\u00e9 mlyny v cement\u00e1rstve, ban\u00edctve a spracovan\u00ed nerastov zvy\u010dajne pracuj\u00fa v nepretr\u017eitej prev\u00e1dzke S1 20 a\u017e 24 hod\u00edn denne a zastavuj\u00fa sa iba pri pl\u00e1novan\u00fdch intervaloch \u00fadr\u017eby (zvy\u010dajne t\u00fd\u017edenne alebo ka\u017ed\u00e9 dva t\u00fd\u017edne) a pri v\u00fdmene vlo\u017eky. Motor YVF2 mus\u00ed by\u0165 v prev\u00e1dzkovom bode dimenzovan\u00fd na nepretr\u017eit\u00fa prev\u00e1dzku S1 \u2013 prev\u00e1dzkov\u00fd v\u00fdkon mlyna pri zvolenom percente kritick\u00fdch ot\u00e1\u010dok. D\u00fachadlo IC416 zais\u0165uje, \u017ee t\u00e1to prev\u00e1dzka S1 sa udr\u017eiava pri ak\u00fdchko\u013evek ot\u00e1\u010dkach od 40% do 100% menovit\u00fdch ot\u00e1\u010dok.<\/p>\n<\/div>\n

\n
Zn\u00ed\u017eenie v\u00fdkonu pri nadmorskej v\u00fd\u0161ke nad 1 000 m<\/div>\n

\u0164a\u017eobn\u00e9 aplik\u00e1cie vo vysokej nadmorskej v\u00fd\u0161ke (mnoh\u00e9 juhoamerick\u00e9 a africk\u00e9 bane sa nach\u00e1dzaj\u00fa v nadmorskej v\u00fd\u0161ke 2 000 a\u017e 4 500 m) vy\u017eaduj\u00fa zn\u00ed\u017eenie v\u00fdkonu motora kv\u00f4li zn\u00ed\u017eenej hustote chladiaceho vzduchu. V nadmorskej v\u00fd\u0161ke 2 500 m je hustota vzduchu pribli\u017ene 741 TP3T hladiny mora, \u010do zni\u017euje chladiaci v\u00fdkon motora. \u0160tandardn\u00e9 zn\u00ed\u017eenie v\u00fdkonu pod\u013ea IEC: pou\u017eite \u00fa\u010dinn\u00edk 0,92 na 1 000 m nad 1 000 m. V nadmorskej v\u00fd\u0161ke 3 000 m: zn\u00ed\u017eenie o 1 \u2212 (2 \u00d7 0,08) = 0,84 menovit\u00e9ho v\u00fdkonu. Na kompenz\u00e1ciu zn\u00ed\u017eenia v\u00fdkonu v d\u00f4sledku nadmorskej v\u00fd\u0161ky zadajte v\u00e4\u010d\u0161\u00ed r\u00e1m YVF2 alebo zadajte motor so zn\u00ed\u017een\u00fdm v\u00fdkonom ako trval\u00fd v\u00fdkon S1 pre nadmorsk\u00fa v\u00fd\u0161ku in\u0161tal\u00e1cie.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

\n

6. \u0160pecifik\u00e1cie k\u00f3rejsk\u00e9ho Ever-Power YVF2 pre pohony mlynov<\/h2>\n
\n
\n

Rad K\u00f3rejsk\u00fdch mlynov Ever-Power YVF2 poskytuje kompletn\u00fa \u0161pecifik\u00e1ciu motora s meni\u010dov\u00fdm re\u017eimom pre gu\u013eov\u00e9 mlyny, ty\u010dov\u00e9 mlyny a mlecie mlyny s frekven\u010dn\u00fdm meni\u010dom od mal\u00fdch laborat\u00f3rnych mlynov s v\u00fdkonom 0,75 kW a\u017e po stredne ve\u013ek\u00e9 cement\u00e1rne a miner\u00e1lne spracovate\u013esk\u00e9 mlyny s v\u00fdkonom 200 kW. Syst\u00e9m n\u00faten\u00e9ho chladenia IC416, vinutie triedy H pre prev\u00e1dzku s frekven\u010dn\u00fdm meni\u010dom, kompatibilita s bezsn\u00edma\u010dov\u00fdm vektorov\u00fdm riaden\u00edm, ochrana termistorom PTC a metrick\u00fd r\u00e1m IEC 72-1 robia z YVF2 spr\u00e1vnu n\u00e1hradu za existuj\u00face motory mlynov s pevnou r\u00fdchlos\u0165ou, ktor\u00e9 sa dodato\u010dne vybavuj\u00fa syst\u00e9mami pohonu s frekven\u010dn\u00fdm meni\u010dom. Cel\u00fd sortiment je uveden\u00fd v... Sekcia motora s frekven\u010dn\u00fdm meni\u010dom<\/a>V pr\u00edpade \u0161pecifik\u00e1ci\u00ed pohonu ve\u013ek\u00fdch mlynov s v\u00fdkonom nad 200 kW alebo po\u017eiadaviek na synchr\u00f3nny motor kontaktujte K\u00f3rea Ever-Power<\/a>.<\/p>\n<\/div>\n

\n
\n
YVF2 \u2014 \u00dadaje o pohone gu\u013eov\u00e9ho mlyna<\/div>\n\n\n\n\n\n\n\n\n\n\n
Rozsah v\u00fdkonu<\/td>\n0,75 \u2013 200 kW<\/td>\n<\/tr>\n
Rozsah r\u00fdchlosti<\/td>\n0\u2013120 Hz<\/td>\n<\/tr>\n
Chladenie<\/td>\nIC416 n\u00faten\u00e9 d\u00fachadlo<\/td>\n<\/tr>\n
\u0160tartovac\u00ed kr\u00fatiaci moment<\/td>\n2,5\u00d7 so zv\u00fd\u0161en\u00edm VFD<\/td>\n<\/tr>\n
Izol\u00e1cia<\/td>\nPrev\u00e1dzka s meni\u010dom frekvencie triedy H<\/td>\n<\/tr>\n
Povinnos\u0165<\/td>\nS1 kontinu\u00e1lny<\/td>\n<\/tr>\n
Ochrana<\/td>\n\u0160tandardn\u00e9 PTC termistory<\/td>\n<\/tr>\n
Nadmorsk\u00e1 v\u00fd\u0161ka<\/td>\nZn\u00ed\u017eenie v\u00fdkonu nad 1 000 m<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

\n

7. Aplik\u00e1cie gu\u013eov\u00fdch mlynov a mlynov na mletie<\/h2>\n\n\n\n
\"YVF2<\/p>\n
\n
Gu\u013eov\u00fd mlyn na spracovanie nerastov<\/div>\n

Gu\u013eov\u00e9 mlyny na spracovanie zlata, medi a \u017eeleznej rudy s priemerom od 0,9 m do 3,0 m. YVF2 4-p\u00f3lov\u00fd 7,5 a\u017e 132 kW IC416 s prevodov\u00fdm pomerom 10:1 a\u017e 30:1. Prev\u00e1dzka pri kritick\u00fdch ot\u00e1\u010dkach 65 a\u017e 75% pomocou nastavenia frekven\u010dn\u00fdm meni\u010dom (VFD). Nepretr\u017eit\u00e1 prev\u00e1dzka S1 20 a\u017e 24 hod\u00edn denne. Pre 24-hodinov\u00fa bezobslu\u017en\u00fa prev\u00e1dzku s\u00fa povinn\u00e9 PTC termistory. Pre bansk\u00e9 lokality vo vysok\u00fdch nadmorsk\u00fdch v\u00fd\u0161kach nad 2 000 m sa uplat\u0148uje zn\u00ed\u017eenie nadmorskej v\u00fd\u0161ky.<\/p>\n<\/div>\n<\/td>\n

\"YVF2<\/p>\n
\n
Moderniz\u00e1cia cementov\u00e9ho gu\u013eov\u00e9ho mlyna s frekven\u010dn\u00fdm meni\u010dom<\/div>\n

Dodato\u010dn\u00e1 mont\u00e1\u017e existuj\u00facich pohonov s pevnou r\u00fdchlos\u0165ou pomocou frekven\u010dn\u00e9ho meni\u010da (VFD) pre optimaliz\u00e1ciu r\u00fdchlosti a m\u00e4kk\u00fd rozbeh. YVF2 4-p\u00f3lov\u00fd 45 a\u017e 200 kW IC416 nahr\u00e1dza existuj\u00face \u0161tandardn\u00e9 motory. VFD umo\u017e\u0148uje \u00fasporu energie 5 a\u017e 12% optimaliz\u00e1ciou r\u00fdchlosti mlyna pre r\u00f4zne zmesi cementu. Existuj\u00faci prevodov\u00fd a pastorkov\u00fd pohon sa zachov\u00e1va; vymie\u0148a sa iba motor a ovl\u00e1dac\u00ed panel. Bezsn\u00edma\u010dov\u00fd vektorov\u00fd VFD vyladen\u00fd na zotrva\u010dnos\u0165 mlyna pre optim\u00e1lny rozbehov\u00fd kr\u00fatiaci moment.<\/p>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\n
\n
Farmaceutick\u00fd laborat\u00f3rny gu\u013eov\u00fd mlyn<\/div>\n

Mal\u00e9 farmaceutick\u00e9 a v\u00fdskumn\u00e9 gu\u013eov\u00e9 mlyny na redukciu ve\u013ekosti \u010dast\u00edc API. YVF2 4-p\u00f3lov\u00fd 0,75 a\u017e 3,0 kW IC416. Presn\u00e1 regul\u00e1cia ot\u00e1\u010dok \u00b1 0,5 ot.\/min pre reprodukovate\u013en\u00e9 rozlo\u017eenie ve\u013ekosti \u010dast\u00edc. Motor kompatibiln\u00fd s \u010dist\u00fdmi priestormi, ak je potrebn\u00fd (BXG SS316L pre in\u0161tal\u00e1ciu v oblasti GMP pre farmaceutick\u00e9 spolo\u010dnosti).<\/p>\n<\/div>\n

\n
Mlyn na mletie keramiky a dla\u017ed\u00edc<\/div>\n

Mlyny na mokr\u00e9 mletie porcel\u00e1nov\u00fdch, aluminov\u00fdch a keramick\u00fdch surov\u00edn na v\u00fdrobu dla\u017ed\u00edc a sanit\u00e1rnej keramiky. YVF2 4-p\u00f3lov\u00fd 5,5 a\u017e 55 kW. Mokr\u00e9 mletie pri 68 a\u017e 72% Nc. Regul\u00e1cia ot\u00e1\u010dok pre r\u00f4zne zlo\u017eenia keramick\u00fdch telies vy\u017eaduj\u00face r\u00f4zne cie\u013eov\u00e9 jemnosti mletia. IP55 pre prostredie budovy s mokr\u00fdm mlet\u00edm.<\/p>\n<\/div>\n

\n
Mlyn na mletie pigmentov<\/div>\n

Mletie keramick\u00fdch pigmentov, oxidu titani\u010dit\u00e9ho a oxidu \u017eeleza na v\u00fdrobu farieb a atramentov. YVF2 4-p\u00f3lov\u00fd 2,2 a\u017e 22 kW. Presn\u00e1 regul\u00e1cia ot\u00e1\u010dok pre cie\u013eov\u00fa ve\u013ekos\u0165 \u010dast\u00edc. Ak mel\u00fa pigmenty na b\u00e1ze rozp\u00fa\u0161\u0165adla, \u0161pecifikujte YB2 Ex d IIB T4 pre klasifik\u00e1ciu v z\u00f3ne 2 v oblastiach s pigmentmi na b\u00e1ze rozp\u00fa\u0161\u0165adla.<\/p>\n<\/div>\n

\n
Ty\u010dov\u00fd mlyn na hrub\u00e9 mletie<\/div>\n

Ty\u010dov\u00e9 mlyny na hrub\u00e9 mletie v okruhoch spracovania nerastov pred sekund\u00e1rnym mlet\u00edm v gu\u013eovom mlyne. Podobn\u00e9 po\u017eiadavky na pohon ako u gu\u013eov\u00fdch mlynov: YVF2 4-p\u00f3lov\u00fd 15 a\u017e 132 kW IC416, riadenie VFD pri 60 a\u017e 70% Nc. Ty\u010dov\u00e9 mlyny maj\u00fa zvy\u010dajne ni\u017e\u0161iu prev\u00e1dzkov\u00fa r\u00fdchlos\u0165 ako gu\u013eov\u00e9 mlyny s rovnak\u00fdm priemerom kv\u00f4li riziku zamotania ty\u010de pri vysokej r\u00fdchlosti.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

\n
\n

\"V\u00fdroba<\/p>\n

V\u00fdroba motorov<\/div>\n<\/div>\n
\n

\"Test<\/p>\n

Sk\u00fa\u0161ka vysok\u00fdm kr\u00fatiacim momentom<\/div>\n<\/div>\n
\n

\"Pohon<\/p>\n

In\u017einierska podpora<\/div>\n<\/div>\n
\n

\"Glob\u00e1lny<\/p>\n

Glob\u00e1lny export<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

\n

8. \u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n
\n
\n
\n
\u010co sa stane, ak gu\u013eov\u00fd mlyn prekro\u010d\u00ed svoju kritick\u00fa r\u00fdchlos\u0165?<\/div>\n<\/div>\n
\n

Ak sa r\u00fdchlos\u0165 gu\u013eov\u00e9ho mlyna zv\u00fd\u0161i nad kritick\u00fa r\u00fdchlos\u0165, gule sa odstre\u010fuj\u00fa k pl\u00e1\u0161\u0165u mlyna a ot\u00e1\u010daj\u00fa sa spolu s n\u00edm, namiesto toho, aby sa kask\u00e1dovito pohybovali. Mletie sa \u00faplne zastav\u00ed, preto\u017ee medzi gu\u013eami a vs\u00e1dzkou rudy nedoch\u00e1dza k \u017eiadnemu relat\u00edvnemu pohybu \u2013 gule sa jednoducho ot\u00e1\u010daj\u00fa rovnakou r\u00fdchlos\u0165ou ako povrch pl\u00e1\u0161\u0165a, \u010d\u00edm nevytv\u00e1raj\u00fa \u017eiadne n\u00e1razov\u00e9 ani oderov\u00e9 sily. Okrem toho, prev\u00e1dzka nad kritickou r\u00fdchlos\u0165ou sp\u00f4sobuje, \u017ee vs\u00e1dzka gu\u013e\u00f4\u010dok sa st\u00e1va nevyv\u00e1\u017eenou, preto\u017ee gule sa nerovnomerne rozkladaj\u00fa na povrchu pl\u00e1\u0161\u0165a, \u010do vytv\u00e1ra vibr\u00e1cie, ktor\u00e9 m\u00f4\u017eu po\u0161kodi\u0165 lo\u017eisk\u00e1 mlyna a zvary pl\u00e1\u0161\u0165a. V praxi odstrediv\u00fd efekt za\u010d\u00edna v\u00fdrazne zni\u017eova\u0165 \u00fa\u010dinnos\u0165 mletia nad kritickou r\u00fdchlos\u0165ou pribli\u017ene 85% pred \u00fapln\u00fdm efektom zr\u00fdchlenia pri 100% Nc \u2013 preto \u0161tandardn\u00fd prev\u00e1dzkov\u00fd rozsah 65 a\u017e 80% Nc poskytuje optim\u00e1lnu \u00fa\u010dinnos\u0165 mletia s primeranou rezervou pod kritickou r\u00fdchlos\u0165ou, pri ktorej by sa mletie zastavilo. Limit r\u00fdchlosti meni\u010da frekvencie (VFD) mus\u00ed by\u0165 nastaven\u00fd v programovan\u00ed VFD, aby sa zabr\u00e1nilo tomu, \u017ee motor poh\u00e1\u0148a mlyn nad maxim\u00e1lnu bezpe\u010dn\u00fa r\u00fdchlos\u0165 zodpovedaj\u00facu pribli\u017ene 85% Nc.<\/p>\n<\/div>\n<\/div>\n

\n
\n
M\u00f4\u017eem dodato\u010dne vybavi\u0165 existuj\u00faci motor gu\u013eov\u00e9ho mlyna s pevnou r\u00fdchlos\u0165ou pohonn\u00fdm syst\u00e9mom YVF2 VFD?<\/div>\n<\/div>\n
\n

\u00c1no, dodato\u010dn\u00e1 mont\u00e1\u017e existuj\u00faceho gu\u013eov\u00e9ho mlyna s meni\u010dom frekvencie (VFD) a motorom YVF2 je be\u017en\u00fdm projektom na \u00fasporu energie v cement\u00e1r\u0148ach a z\u00e1vodoch na spracovanie nerastov. K\u013e\u00fa\u010dov\u00e9 kroky s\u00fa: (1) overi\u0165, \u010di existuj\u00faca prevodovka a pastorok zvl\u00e1dnu zv\u00fd\u0161en\u00fd kr\u00fatiaci moment zo \u0161tartovacej sekvencie so zosilnen\u00edm VFD \u2013 niekedy je potrebn\u00e9 prevodovku vylep\u0161i\u0165 pri demont\u00e1\u017ei existuj\u00facej kvapalinovej spojky, ktor\u00e1 predt\u00fdm obmedzovala \u0161tartovac\u00ed kr\u00fatiaci moment na motor s pevn\u00fdmi ot\u00e1\u010dkami; (2) nahradi\u0165 existuj\u00faci \u0161tandardn\u00fd motor obvodom YVF2 IC416 s rovnak\u00fdm menovit\u00fdm v\u00fdkonom a ve\u013ekos\u0165ou r\u00e1mu \u2013 rozmery r\u00e1mu IEC s\u00fa identick\u00e9, tak\u017ee motor sa montuje priamo na existuj\u00facu z\u00e1kladn\u00fa dosku; (3) nain\u0161talova\u0165 VFD do rozv\u00e1dzacej skrinky motora ved\u013ea mlyna \u2013 dimenzova\u0165 VFD na menovit\u00fd pr\u00fad motora s pr\u00fadovou rezervou 10 a\u017e 15% pre zv\u00fd\u0161enie \u0161tartovacieho kr\u00fatiaceho momentu; (4) uvies\u0165 VFD do prev\u00e1dzky s parametrami mlyna \u2013 nastavi\u0165 maxim\u00e1lny frekven\u010dn\u00fd limit, zv\u00fd\u0161enie kr\u00fatiaceho momentu pre \u0161tart a r\u00fdchlos\u0165 n\u00e1behu. Spolo\u010dnos\u0165 Korea Ever-Power m\u00f4\u017ee doda\u0165 motor YVF2 s predbe\u017en\u00fdm d\u00e1tov\u00fdm listom, ktor\u00fd dokumentuje parametre motora potrebn\u00e9 na programovanie frekven\u010dn\u00e9ho meni\u010da.<\/p>\n<\/div>\n<\/div>\n

\n
\n
Ako dlho vydr\u017e\u00ed motor YVF2 IC416 v nepretr\u017eitej prev\u00e1dzke gu\u013eov\u00e9ho mlyna?<\/div>\n<\/div>\n
\n

Pri spr\u00e1vnej \u00fadr\u017ebe a spr\u00e1vnom pou\u017eit\u00ed by mal motor YVF2 IC416 v kontinu\u00e1lnom gu\u013eovom mlyne S1 dosiahnu\u0165 \u017eivotnos\u0165 80 000 a\u017e 100 000 hod\u00edn (pribli\u017ene 10 a\u017e 12 rokov) predt\u00fdm, ako bude potrebn\u00e9 vymeni\u0165 alebo previn\u00fa\u0165 izol\u00e1ciu vinutia z d\u00f4vodu starnutia. Medzi kritick\u00e9 \u00falohy \u00fadr\u017eby, ktor\u00e9 predl\u017euj\u00fa \u017eivotnos\u0165 motora v aplik\u00e1ci\u00e1ch gu\u013eov\u00e9ho mlyna, patria: v\u00fdmena lo\u017eiska ka\u017ed\u00fdch 20 000 a\u017e 30 000 hod\u00edn (2,5 a\u017e 3,5 roka) na z\u00e1klade odpor\u00fa\u010dan\u00ed v\u00fdrobcu lo\u017e\u00edsk pre nepretr\u017eit\u00fa prev\u00e1dzku pri menovitom za\u0165a\u017een\u00ed; \u010distenie filtra d\u00fachadla IC416 ka\u017ed\u00e9 3 a\u017e 6 mesiacov, aby sa zabezpe\u010dilo, \u017ee pr\u00fadenie chladiaceho vzduchu nie je zn\u00ed\u017een\u00e9 hromaden\u00edm prachu v nas\u00e1van\u00ed vzduchu d\u00fachadla; ro\u010dn\u00e9 meranie izola\u010dn\u00e9ho odporu na zistenie v\u010dasn\u00e9ho vniknutia vlhkosti alebo ne\u010dist\u00f4t; a pravideln\u00e1 kontrola pripojenia na svorkovnici, aby sa zabr\u00e1nilo prehriatiu pripojenia v d\u00f4sledku vibr\u00e1ci\u00ed alebo uvo\u013enenia svoriek v prostred\u00ed mlyna s vysok\u00fdmi vibr\u00e1ciami. Doplnenie maziva pre hlavn\u00e9 lo\u017eisk\u00e1 motora ka\u017ed\u00fdch 6 a\u017e 12 mesiacov v z\u00e1vislosti od ve\u013ekosti lo\u017eiska a okolitej teploty. Spolo\u010dnos\u0165 Korea Ever-Power poskytuje na po\u017eiadanie pl\u00e1n \u00fadr\u017eby \u0161pecifick\u00fd pre ve\u013ekos\u0165 r\u00e1mu YVF2 a menovit\u00fd v\u00fdkon.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

\n
<\/div>\n

 <\/p>\n

\n
Korea Ever-Power \u00b7 S\u00e9ria YVF2 \u00b7 Motory s frekven\u010dn\u00fdm meni\u010dom pre gu\u013eov\u00e9 mlyny a mlyny na mletie<\/div>\n

Potrebujete frekven\u010dn\u00e9 meni\u010de pre pohon v\u00e1\u0161ho gu\u013eov\u00e9ho mlyna alebo mlyna na mletie?<\/h2>\n

Korea Ever-Power YVF2: IC416, trieda H, 2,5\u00d7 rozbehov\u00fd kr\u00fatiaci moment, 0\u2013120 Hz, S1 kontinu\u00e1lny, 0,75\u2013200 kW, PTC termistory. K dispoz\u00edcii s\u00fa d\u00e1tov\u00e9 listy pre dodato\u010dn\u00fa mont\u00e1\u017e pre uvedenie VFD do prev\u00e1dzky.<\/p>\n

Zobrazi\u0165 sortiment motorov YVF2<\/a><\/p>\n<\/div>\n<\/div>\n

Upravil Cxm<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

Korea Ever-Power \u00b7 YVF2 Series \u00b7 Ball Mill and Grinding Mill Drive Guide VFD Motor for Ball Mill and Grinding Mill: Critical Speed, Starting Torque and Mill Drive Selection Ball mills, rod mills, SAG mills, and laboratory grinding mills impose some of the most demanding motor requirements in industrial processing: very high starting torque to […]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[28],"tags":[],"class_list":["post-197","post","type-post","status-publish","format-standard","hentry","category-industrial-electric-motor"],"_links":{"self":[{"href":"https:\/\/industrialelectricmotor.net\/sk\/wp-json\/wp\/v2\/posts\/197","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/industrialelectricmotor.net\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/industrialelectricmotor.net\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/industrialelectricmotor.net\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/industrialelectricmotor.net\/sk\/wp-json\/wp\/v2\/comments?post=197"}],"version-history":[{"count":3,"href":"https:\/\/industrialelectricmotor.net\/sk\/wp-json\/wp\/v2\/posts\/197\/revisions"}],"predecessor-version":[{"id":201,"href":"https:\/\/industrialelectricmotor.net\/sk\/wp-json\/wp\/v2\/posts\/197\/revisions\/201"}],"wp:attachment":[{"href":"https:\/\/industrialelectricmotor.net\/sk\/wp-json\/wp\/v2\/media?parent=197"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/industrialelectricmotor.net\/sk\/wp-json\/wp\/v2\/categories?post=197"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/industrialelectricmotor.net\/sk\/wp-json\/wp\/v2\/tags?post=197"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}