{"id":3757,"date":"2016-11-16T19:51:00","date_gmt":"2016-11-16T16:51:00","guid":{"rendered":"http:\/\/www.mequipment.ro\/?p=3757"},"modified":"2019-01-26T15:51:11","modified_gmt":"2019-01-26T12:51:11","slug":"inovatii-in-subteran-incarcatoare-cu-actionare-electrica-pentru-aplicatii-in-galerii-inguste","status":"publish","type":"post","link":"https:\/\/mequipment.ro\/en\/inovatii-in-subteran-incarcatoare-cu-actionare-electrica-pentru-aplicatii-in-galerii-inguste\/","title":{"rendered":"Inova\u0163ii \u00een subteran. \u00cenc\u0103rc\u0103toare cu transmisie electric\u0103 pentru aplica\u0163ii \u00een galerii \u00eenguste"},"content":{"rendered":"

Desf\u0103\u015furat o dat\u0103 la patru ani \u00een Statele Unire, renumitul t\u00e2rg MINExpo a adunat \u015fi \u00een aceast\u0103 toamn\u0103 crema industriei utilajelor miniere, odat\u0103 cu cele mai recente inova\u0163ii \u00een domeniu. \u015ei dac\u0103 excavatoarele \u015fi camioanele miniere ies u\u015for \u00een eviden\u0163\u0103 datorit\u0103 dimensiunilor deloc neglijabile, utilajele care lucreaz\u0103 \u00een galeriile subterane sunt mai discrete, dar la fel de harnice ca ni\u015fte furnici lucr\u0103toare. \u00cenc\u0103rc\u0103toarele de subteran (LHD \u2013 load haul dumper) sunt utilaje puternice, cu o tehnologie avansat\u0103 a grupului motopropulsor, axe robuste, trac\u021biune integral\u0103, direc\u021bie articulat\u0103 \u0219i comenzi ergonomice. Au un profil \u00eengust \u015fi alungit care le face potrivite pentru aplica\u0163ii \u00een subteran, acolo unde dimensiunile mediului de lucru (\u00een\u0103l\u021bimea \u0219i l\u0103\u021bimea) sunt limitate.<\/em> Marius IANCU<\/strong><\/p>\n

La o prim\u0103 privire, s-ar p\u0103rea c\u0103 principalii produc\u0103tori se concentreaz\u0103 pe utilaje de suprafa\u0163\u0103 care s\u0103 genereze valori mari de productivitate. \u015ei asta pentru c\u0103 exploat\u0103rile de suprafa\u0163\u0103 sunt la vedere, iar dimensiunile lor \u015fi ale utilajelor ce lucreaz\u0103 aici impresioneaz\u0103. \u00cens\u0103 importan\u021ba mineritului la scar\u0103 mai mic\u0103 nu este deloc neglijat\u0103. Cunoscut \u015fi ca \u201eunderground mining\u201d, acest segment a atins un nivel \u00eenalt de mecanizare, greu de imaginat \u00een urm\u0103 cu peste jum\u0103tate de secol, c\u00e2nd munca manual\u0103 \u015fi vagone\u0163ii cu desc\u0103rcare lateral\u0103, pe \u0219ine cu ecartament \u00eengust, erau standardul vremii.<\/p>\n

O tendin\u021b\u0103 tot mai clar\u0103 a ultimilor ani este introducerea de utilaje (fie ele platforme de foraj, \u00eenc\u0103rc\u0103toare subterane sau camioane subterane) cu transmisie electric\u0103, \u00een dauna celor diesel. \u00cen acest sens, industria c\u0103rbunelui a fost \u00een avangard\u0103, dar aplica\u021biile miniere \u00een roc\u0103 dur\u0103 recupereaz\u0103 teren \u015fi stabilesc noi standarde pentru ma\u0219inile ac\u0163ionate electric. Cablurile de alimentare rulate pe tambur \u00een spatele utilajelor \u2013 trebuie s\u0103 recunoa\u015ftem \u2013 au dezavantaje \u00een ceea ce prive\u0219te raza de operare a ma\u015finii \u0219i sunt expuse condi\u0163iilor grele din subteran, astfel c\u0103 acum accentul este pus pe o nou\u0103 genera\u021bie de echipamente ac\u0163ionate de la baterii. <\/p>\n

Datorit\u0103 cererii tot mai mari pentru capacitate, pentru posibilit\u0103\u0163i de re\u00eenc\u0103rcare \u0219i diminuarea greut\u0103\u0163ii (criterii \u00eemprumutate din industria auto), tehnologia bateriilor a avansat \u00eentr-un ritm uimitor \u00een ultimii 10 ani. Au fost dezvoltate noi concepte \u00een ceea ce prive\u015fte materialele utilizate, departe de unit\u0103\u021bile de odinioar\u0103 (cu plumb \u015fi acid) ce alimentau locomotivele miniere de la jum\u0103tatea secolului 20. Iar produc\u0103torii caut\u0103 s\u0103 implementeze aceast\u0103 tehnologie \u00een acele segmente de pia\u0163\u0103 care ar putea s\u0103 genereze cele mai multe v\u00e2nz\u0103ri. <\/p>\n

Acum, \u201eputerea bateriilor\u201d \u00ee\u015fi \u00eemprumut\u0103 avantajele \u015fi c\u0103tre utilajele \u201eunderground\u201d. Pe l\u00e2ng\u0103 \u00eembun\u0103t\u0103\u021birile aduse mediului de lucru al operatorului, bateriile cresc \u0219i siguran\u021ba, ca urmare a evit\u0103rii utiliz\u0103rii \u00een subteran a combustibilului diesel. \u00cen plus, nevoia unor volume mai mici de ventila\u021bie poate oferi economii semnificative de energie. Una peste alta, energia electric\u0103, \u00een general, \u0219i cea furnizat\u0103 de baterii, \u00een special, sunt un c\u00e2\u0219tig pentru activit\u0103\u0163ile solicitante din subteran. \"Scooptram<\/p>\n

100% electric, pe baterii<\/strong>
\nAnul acesta \u00een mai, Atlas Copco a anun\u021bat primul s\u0103u produs pentru exploat\u0103ri subterane 100% electric pe baterii \u2013 Scooptram ST7 Battery. Ini\u0163ial valabil pentru pia\u0163a nord-american\u0103, urm\u00e2nd ca ulterior s\u0103 fie disponibil la nivel global, acest nou \u00eenc\u0103rc\u0103tor subteran permite opera\u021biuni mai curate, mai sigure \u0219i mai flexibile. Puterea bateriei ofer\u0103 poten\u021bialul unei productivit\u0103\u0163i mai mari, la un cost redus (minimizeaz\u0103 necesitatea de ventila\u021bie a minei, oferind totodat\u0103 performan\u021be identice sau mai bune ca un model diesel, \u015fi reduce costurile pentru infrastructur\u0103, precum \u0219i costurile opera\u021bionale pe termen lung). <\/p>\n

Cu o capacitate de 6.8 t, \u00eenc\u0103rc\u0103torul are zero emisii \u015fi o reducere de p\u00e2n\u0103 la 80% a c\u0103ldurii generate, comparativ cu unul diesel. Dar pe l\u00e2ng\u0103 principala schimbare \u2013 de la diesel la baterii \u2013, produc\u0103torul suedez s-a focusat \u015fi pe alte aspecte importante, precum sistemul unic de control al trac\u0163iunii, ce reduce cu p\u00e2n\u0103 la 30% uzura anvelopelor. Cabina este complet \u00eenchis\u0103 \u015fi confrm\u0103 cu criteriile de protec\u0163ie ROPS\/FOPS, are aer condi\u0163ionat \u015fi niveluri reduse de zgomot. Utilajul dispune de sistem telematic pentru date de productivitate \u015fi este \u201eautomation ready\u201d, adic\u0103 poate fi echipat cu func\u0163ii inteligente precum \u201etele remote control\u201d \u2013 ce permite controlul \u00eenc\u0103rc\u0103torului de la distan\u0163\u0103, dintr-un loc sigur. <\/p>\n

miniLoader, de la Aramine<\/strong>
\nTot la MINExpo \u015fi tot anul acesta, compania francez\u0103 Aramine a lansat mini\u00eenc\u0103rc\u0103torul alimentat de la baterii L120B, despre care produc\u0103torii spun c\u0103 va revolu\u0163iona echipamentele miniere pentru galerii \u00eenguste. Modelul este primul dintr-o gam\u0103 complet nou\u0103 \u015fi prin caracteristicile sale va \u00eembun\u0103t\u0103\u0163i flexibilitatea de operare \u015fi condi\u0163iile de lucru. \"aramine\"<\/p>\n

U\u015for de operat, noul L120B miniLoader este alimentat de la un pachet de acumulatori re\u00eenc\u0103rcabili de ultim\u0103 genera\u0163ie litiu-fier-fosfat (LiFePO4), iar produc\u0103torul ofer\u0103 dou\u0103 astfel de pachete, pentru a garanta productivitatea. \u015ei pentru c\u0103 nu mai e nevoie de cablu de alimentare rulat pe tambur \u00een spatele ma\u015finii, \u00eenc\u0103rc\u0103torul are acum o zon\u0103 de lucru mai vast\u0103 \u015fi o libertate mare de mi\u015fcare. Lipsa tamburului \u015fi a cablului \u00eenseamn\u0103 costuri mai reduse \u015fi opera\u0163iuni mai pu\u0163ine de \u00eentre\u0163inere.
\nNoul LHD electric are o capacitate de 1.1 t, o l\u0103\u0163ime de cca. 1 m \u015fi o capacitate a cupei \u00eentre 0,5 \u015fi 0,6 m\u00b3. Cabina operatorului permite a\u015fezarea acestuia \u00een pozi\u0163ie lateral\u0103, iar comenzile sunt amplasate pe cele dou\u0103 joystick-uri ergonomice.<\/p>\n

Sandvik LHD electric<\/strong>
\nPortofoliul de produsele Sandvik pentru aplica\u021bii \u00een galerii \u00eenguste include echipamente de foraj \u015fi \u00eenc\u0103rc\u0103toare subterane. Sandvik LH204E este un \u00eenc\u0103rc\u0103tor electric de 4,5 tone capacitate, conceput pentru aplica\u021bii subterane de tip \u201enarrow-vein\u201d, aceast\u0103 versiune fiind urma\u015fa modelului diesel LH204; este o solu\u021bie rentabil\u0103, care ofer\u0103 o productivitate ridicat\u0103 \u0219i costuri reduse\/ton\u0103. Grupul motopropulsor \u00eembun\u0103t\u0103\u0163it \u015fi puternic permite o penetrare mai bun\u0103 a materialului \u015fi o eficien\u021b\u0103 mai ridicat\u0103 la umplerea cupei de 2 m\u00b3. De asemenea, sistemul de control \u0219i management al vehiculului (VCM) \u2013 unic \u00een aceast\u0103 clas\u0103 de \u00eenc\u0103rc\u0103toare \u2013 monitorizeaz\u0103 to\u021bi parametrii ma\u015finii, inclusiv vitezele de deplasare, temperaturile de operare \u0219i presiunile, pentru a optimiza opera\u0163iunile de \u00eentre\u0163inere sau depanare \u0219i a reduce timpii mor\u021bi neplanifica\u0163i. <\/p>\n

\u00cen 2015, la lansare, \u00eentr-o declara\u021bie oficial\u0103 se spunea: “\u00cen acest nou \u00eenc\u0103rc\u0103tor compact am combinat cerin\u021bele clien\u021bilor \u015fi experien\u021ba noastr\u0103 de cel pu\u021bin 30 de ani \u00een proiectarea de \u00eenc\u0103rc\u0103toare LHD sigure, fiabile \u0219i productive. Echipele de cercetare \u015fi dezvoltare Sandvik Mining au lucrat \u00een str\u00e2ns\u0103 colaborare cu clien\u021bii no\u0219tri pentru a dezvolta acest \u00eenc\u0103rc\u0103tor care s\u0103 fac\u0103 fa\u0163\u0103 condi\u021biilor dificile din galeriile \u00eenguste subterane.”<\/p>\n

Joy \u00ee\u015fi extinde gama \u201enarrow-vein\u201d<\/strong>
\nDup\u0103 ce \u00een 2014 a achizi\u021bionat compania canadian\u0103 MTI, Joy Global s-a folosit de portofoliul de produsele MTI ca baz\u0103 pentru noua sa divizie de minerit subteran \u00een roc\u0103 dur\u0103 (hard-rock underground equipment). \u00cen prezent, linia de produse Joy const\u0103 din 8 modele LHD, camioane subterane \u0219i echipamente de foraj. \u00cen plus, vor fi lansate alte cinci modele noi (narrow-vein), dintre care primul, 4LD LHD, de 4 t capacitate, a debutat \u00een septembrie la MINExpo<\/a>. \"\"<\/p>\n

Utilajul dispune de un cadru robust din o\u021bel ce face fa\u0163\u0103 rigorilor aplica\u021biilor miniere \u00een roc\u0103 dur\u0103, reduc\u00e2nd posibilii timpi de nefunc\u021bionare \u0219i extinz\u00e2nd durata de via\u021b\u0103 a echipamentului. Este primul model LHD din aceast\u0103 clas\u0103 de m\u0103rime ce folose\u015fte articula\u0163ie de tip Z (Z-bar linkage); aceasta cre\u015fte for\u0163a de rupere cu p\u00e2n\u0103 la 15% \u0219i \u00eembun\u0103t\u0103\u021be\u0219te timpul de desc\u0103rcare de la 5 secunde la 2,1 secunde.<\/p>\n

\u00cen afara modelelor diesel, Joy ofer\u0103 dou\u0103 \u00eenc\u0103rc\u0103toare hibrid \u2013 18HD \u015fi 22HD \u2013 care beneficiaz\u0103 de tehnologia brevetat\u0103 JOY SR Hybrid Drive ce include sistemul KESS (Kinetic Energy Storage System); acesta stocheaz\u0103 energia pentru a o utiliza atunci c\u00e2nd este necesar. O astfel de solu\u0163ie contribuie la o reducere semnificativ\u0103 a costulrilor totale de proprietate (TCO).
\nAnul acesta, Joy Global a fost achizi\u0163ionat\u0103 de c\u0103tre Komatsu.<\/p>\n

GHH \u2013 \u015fi diesel, \u015fi electrice<\/strong>
\nGHH Fahrzeuge face parte din grupul Schmidt, Kranz & Co, al\u0103turi de Hazemag, Mine Master \u015fi mts Perforator \u015fi e prezent\u0103 cu utilaje \u00een cele mai exploat\u0103ri subterane din lume, \u00een \u0163\u0103ri precum: Australia, Africa de Sud, Chile, China \u015fi Rusia. Pentru aplica\u0163ii miniere \u00een galerii \u00eenguste, compania ofer\u0103 o linie \u00eentreag\u0103 de \u00eenc\u0103rc\u0103toare \u0219i camioane subterane de diferite capacit\u0103\u0163i. Cel mai recent \u00eenc\u0103rc\u0103tor de la GHH este modelul LF-3, de 3,5 t sarcin\u0103 util\u0103, care va fi lansat anul acesta. Lat de doar 1,5 m, acesta este propulsat de un motor Deutz de 70 kW, r\u0103cit cu aer, compatibil cu norma Tier 3, disponibil \u015fi \u00een alte op\u021biuni, inclusiv versiuni r\u0103cite cu ap\u0103, pentru aplica\u021bii la altitudini mari. \"ghh\"<\/p>\n

Dar GHH ofer\u0103 \u015fi LHD-uri ac\u0163ionate electric, cu cablu, cu capacit\u0103\u0163i ce variaz\u0103 de la 10 la 21 tone, special potrivite pentru proiectele \u00een care ventila\u021bia este critic\u0103. De asemenea, prezint\u0103 un nivel redus de zgomot. Beneficiile economice rezult\u0103 dintr-o fiabilitate ridicat\u0103 \u0219i o durat\u0103 lung\u0103 de via\u021b\u0103 a componentelor de ac\u021bionare; adic\u0103 mai pu\u021bine piese de schimb \u0219i costuri mai mici de \u00eentre\u021binere \u0219i, prin urmare, costuri totale de operare mai mici. <\/p>\n

\u00cenc\u0103rc\u0103toarele subterane electrice GHH sunt echipate cu sistemul hidrostatic testat Efficient Drive System (EDS), care se completeaz\u0103 ideal cu motorul electric ce func\u021bioneaz\u0103 la o tura\u0163ie constant\u0103, datorit\u0103 transmisiei hidrostatice continuu variabile. Datorit\u0103 unui sistem inteligent de monitorizare, este redus semnificativ \u015fi consumul de energie. Modelul electric LF-10HE de 10 t capacitate are un design compact, o cup\u0103 customizat\u0103 pentru aplica\u0163ii \u00een roc\u0103 dur\u0103 s\u0103u moale, sistem hidraulic cu senzor de sarcin\u0103, dispune de un mod de \u00eenc\u0103rcare semiautomatic (TIMO) \u015fi protec\u0163ie la coroziune. Modelul mare LF-21HE are articula\u0163ie tip Z. Toate cele trei \u00eenc\u0103rc\u0103toare ac\u0163ionate electric sunt echipate cu un tambur activ, care, datorit\u0103 for\u0163elor reduse de trac\u0163iune, asigur\u0103 o \u00eenf\u0103\u015furare controlat\u0103 a cablului \u015fi o durat\u0103 lung\u0103 de via\u0163\u0103 a acestuia.<\/p>\n

\u201eZ-bar\u201d pe toate \u00eenc\u0103rc\u0103toarele Paus<\/strong>
\nSeria de \u00eenc\u0103rc\u0103toare subterane PFL de la Hermann Paus Maschinenfabrik are unit\u0103\u021bi cu transmisie hidrostatic\u0103 \u0219i \u0219asiuri articulate pentru o deplasare sigur\u0103 \u00een spa\u021bii \u00eenchise. Recent, compania \u015fi-a actualizat seria PFL, astfel c\u0103 toate au acum articula\u0163ie de tip Z, pentru o for\u0163\u0103 de rupere mai mare, \u0219i sunt disponibile at\u00e2t cu motoare conforme cu cele mai recente standarde europene privind emisiile, c\u00e2t \u015fi cu versiuni Tier 2 \u0219i 3. Ultima noutate din gam\u0103, modelul PFL 20, este un utilaj de dimensiuni reduse, cu o capacitate de 4 t. \u00cen cur\u00e2nd Paus va lansa \u00eenc\u0103rc\u0103torul PFL 5 de 1 t capacitate, iar cel mai probabil, anul viitor, vom asista la introducerea modelului PFL 8 cu baterii \u0219i lan\u021b cinematic hibrid.<\/p>\n","protected":false},"excerpt":{"rendered":"

Desf\u0103\u015furat o dat\u0103 la patru ani \u00een Statele Unire, renumitul t\u00e2rg MINExpo a adunat \u015fi \u00een aceast\u0103 toamn\u0103 crema industriei utilajelor miniere, odat\u0103 cu cele mai recente inova\u0163ii \u00een domeniu.<\/p>\n","protected":false},"author":1,"featured_media":3758,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_crdt_document":"","footnotes":""},"categories":[32,6071,60,6073],"tags":[3024,3017,8,3018,3023,597,3021,2912,2790,3025,3019,2776,3022,3020,1186],"class_list":["post-3757","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-utilaje-de-constructii","category-mining","category-utilaje-pentru-ind-extractiva-si-de-cariera","category-underground-mining","tag-aplicatii-miniere-in-galerii-inguste","tag-aramine","tag-atlas-copco","tag-ghh-fahrzeuge","tag-incarcatoare-subterane","tag-joy-global","tag-l120b-miniloader","tag-lhd","tag-minexpo","tag-narrow-vein","tag-paus","tag-sandvik","tag-scooptram-st7-battery","tag-z-linkage","tag-z-bar"],"translation":{"provider":"WPGlobus","version":"3.0.2","language":"en","enabled_languages":["ro","en"],"languages":{"ro":{"title":true,"content":true,"excerpt":false},"en":{"title":false,"content":false,"excerpt":false}}},"yoast_head":"\nInova\u0163ii \u00een subteran. \u00cenc\u0103rc\u0103toare cu transmisie electric\u0103 pentru aplica\u0163ii \u00een galerii \u00eenguste - M. 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