2014-1-1 ·  、、,,,,。. 1.2 JB/T ...

NR22 – Occupational Health and Safety in Mining – Brazilian …

f) a sound / light alarm system or a radio / telephone system, allowing communication throughout the shaft for use in repair work or emergencies. 22.12.3 – Production and man-hoists must be fitted with a braking system capable of holding the conveyance in any position, when carrying at least 150% of its maximum full load capacity.

Gongcheng

2018-12-9 · inmetro inmetro denatran ibama denatran ibama ibama lcvm denatran 4.5.2 4 con-metro inmetro 3 abnt abcqinpn inmetro con-metro con-metro 2013 1 1 inmetro . 4.6.3 . 1 lcvm . 1 infoserv 2 ibama ibama . 96 3ibama lcvm 100 / cetesb ibama 4 eec91/542 epa-75 5 crea. 6/ 7 8 lcvm cetesb lcvm ibama 9 cetesb ibama ibama lcvm 10cetesb

CTY-NET

2008-11-4 · [27201] dXlrOkqju :jonn3 :2008/11/04(Tue) 09:02 comment3, td gq r00, gvh, ...

Page 5 | NBN European Standards Standards

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(PDF) Relationship between Urban Noise and the Health of ...

From the recorded noise level in stone crushing clusters, it is found that the noise level is > 85 dBA from 6 a.m. to 4 p.m. when the stone crushers are running on and it is above the ambient ...

The Floridian & journal

2020-6-7 · Material Information Title: The Floridian & journal Alternate title: Floridian and journal Place of Publication: Tallahassee Fla Publisher: Maxwell & Hilton

2020-11-19 · NEXA RESOURCES S.A. TECHNICAL REPORT ON THE ARIPUANÃ ZINC PROJECT, STATE OF MATO GROSSO, BRAZIL NI 43-101 Technical Report Qualified Persons: Jason J. Cox, P.Eng. Sean Horan, P.Geo. Brenna J.Y. Scholey, P.Eng. Luis Vasquez, P.Eng. November 17, 2020 55 University Ave. Suite 501 I Toronto, ON, Canada M5J 2H7 I T + 1 (416) 947 0907

Three-phase Induction Motors

2012-1-6 · g Low noise level g Simple and low maintenance g Easily interchangeable with existing motors ... Shafts are manufactured with materials that comply with ABNT 1040/45, 1524 or 4140H thermally treated materials. ... machines or equipment that require variable or constant torque such as fans, pumps, crushers, conveyor belts, compressors, mills ...

The Environmental Impact Assessment Executive Summary of ...

2021-8-3 · The Environmental Impact Assessment Executive Summary of

(PDF) test | Harish Muniganti

Figure 1.2.1 a shows that the bucket weights 20 N while the diameter of the drum is 0.20 m, thus permitting the rope to transmit a force of 20 N on the drum''s surface, i.e. at 0.10 m from the axis centre. In order to counterbalance this force, 10 N is must be applied …

(PDF) Friction and Wear Reduction of Eccentric Journal ...

2016-11-22 · An anti-friction Babbitt alloy-coated bearing made by a casting process is a journal bearing, which is used in an ore cone crusher eccentric. The main purpose of the Babbitt coated eccentric is to ...

Three-Phase Induction Motors

2020-7-9 · ABNT / IEC / NEMA Furthermore, this great versatility allows you to choose the most suitable motor for your application or installation conditions. In order to meet the most demanding world markets, WEG''s quality system is certified by the Bureau Veritas Quality Institute, in compliance with the requirements of ISO 9001, ISO 14001 and ISO 50001.

51055856-v8-Ero Copper

2019-11-21 · 4 "Brasil Plural" has the meaning ascribed to such term on the cover page of this prospectus. "Brasil Plural and Spectra Offering" means the private placement offering of 500,000 Common Shares and 8,949,089 units of the Company, with each unit comprised of one Common Share and one-third of a General Warrant, to Brasil Plural, Spectra II and Spectra III on December 28, 2016.

Standards, Training, Testing, Assessment and Certification ...

2018-2-9 · ABNT/CB-177 Sanitation 13.060.30*91.140.80*93.030 ABNT - Brazilian Association of Technical Standards 2011-11-24 ABNT NBR 13029 Mining - Elaboration and presentation of a mining waste disposal design ABNT/CEE 73.020 2006-09-04 / Note: Approved 2011-05 …

Noise mapping of densely populated neighborhoods

Noise mapping is an important tool for supplying relevant information for global and local action plans (Guedes, Bertoli, & Zannin, 2011;Klaeboe, Engelien, & Steinnes, 2006;WG-AEN, 2006 ...

Trabalhos técnicos

2019-8-20 · Período de envio de trabalhos: 20/08/2019 até 31/01/2021 Período do evento: 11/05/2021 a 13/05/2021

Boletim de Normalizacao ABNT | Segurança da Informação ...

2013-11-13 · ABNT/CB-36 COMIT BRASILEIRO DE ANLISES CLNICAS E DIAGNSTICO IN VITRO ABNT NBR 14500:2000 Gesto da qualidade no laboratrio clnico Substituda pela ABNT NBR NM ISO 15189:2008 - Laboratrios de anlises clnicas - Requisitos especiais de qualidade e competncia. Vlido a partir de 12.12.2009. Boletin ABNT dezembro. 13 ABNT/CB-41 COMIT BRASILEIRO DE ...

Noise mapping at different stages of a freeway ...

The indoor sound pressure measurements and the noise levels for acoustic comfort established by the Brazilian technical standard ABNT NBR 10152 were compared, indicating that all the measured ...

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Publicaciones Asiex 2018 | Minería | Chile

2020-6-27 · ABNT NBR 9653:2005 – Guia para avaliação dos Muchas gracias Paulo Henrique Costa, Fabio Roque efeitos provocados pelo uso de explosivos nas y US Carajás por entregar todas las condiciones en minerações em áreas urbanas. terreno para hacer que este estudio suceda, sin CANEDO, G.R. (2013).

MOTOR_ABC_761.pdf | Electric Motor | Brake

2020-9-7 · The human ear perceives an increase of approx. 8 to 10 dB(A) as double the noise level, and a reduction of approx. 8 to 10 dB(A) as half the noise level. The motor noise comprises: 74 Magnetic noise. Bearing noise. Fan noise. The fan noise dominates for 2-pole motors. For higher-pole and pole-changing motors, the magnetic noise can be dominant.

Three-Phase Induction Motors

2018-4-15 · g Low noise level g Simple and reduced maintenance g Easily interchangeable with existing motors g Optimized project ... ABNT 1040/45, 1524 or 4140H heat-treated materials are used. Rotor ... crushers, belt conveyors, compressors, mills, mixers and others. Wound-Rotor Motors

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Migmatitic gneiss aggregates: Compositional, mechanical ...

2021-3-20 · After field sampling from stockpiles according to the Brazilian standard method (ABNT, 2009a), all samples were washed and dried at 377.15 K (104 °C) for approximately 24 h. Approximately 2 kg of material was retained in sieves of each of the following …

WEG Electric Motors

Three-Phase: W22 Crusher Duty TEFC (IP55) WEG Crusher Duty W22 motors are specifically designed to meet the demanding requirements of the rock crushing industry. FC-200 grade cast iron, provides superior strength and heat dissipation. And 4140 …

Using a noise monitoring station in a small quarry located ...

2017-12-22 · Noise maps. Noise maps were used to help in understanding the variability of noise monitored in this study. These noise maps were elaborated through Brüel & Kjær Predictor-LimA V.11.0 software, using the ISO 9613 (ISO 9613 Part 2 1996) calculation method and sound power obtained through sound pressure and intensity measurements of the main equipment of the quarry according to …

Weg specification-of-electric-motors

2016-4-14 · The torque values relative to these points are specified in the standard ABNT NBR 17094 and IEC 60034-1, as shown below: 26. Specification of Electric Motors26 Cmin : minimum torque or pull up torque: - This is the smallest torque …