WhatsApp)
Modelling SAG milling power and specific energy consumption including the feed percentage of intermediate size particles M. Silva, A. Casali⇑ Mining Engineering Department, Universidad de Chile, Beauchef 850, Santiago, Chile
ndida IV, Chile Project: One SAG Mill and 3 Ball Mill Drive Systems Capacity: SAG Mill 4583 t/h Ball Mills 4583 t/h Consultant: Bechtel, Chile Mill Builder: FFE Minerals, USA Mill Size: SAG Mill 38 feet/11,58 m Ball Mills 25 feet/7,62 m Ore processed: Copper Ore Drive Rating: SAG Mill 19,4 MW / 9,31 rpm Ball Mills 13,43 MW / 11,5 rpm
Another first came in 1991 when Siemens supplied gearless drives for two 36foot ring motors, developing a 12,000 kW gearless drive for the Kennecott, Ut, SAG mill and a 11,200 kW gearless drive for the El Teniente, Chile, SAG mill. In a continued call for larger, even more powerful drives, Siemens .
With no moving parts between the motor and the drum, a gearless mill is also extremely strong and can reliably process vast quantities of ore. ABB is the world''s leading supplier of gearless mill drives with more than 70 installed and ordered units worldwide. Sag mill with ABB ring motor a tColluasi Copper Mine, Chile
that the Lumwana Copper Project''s SAG mill (18MW) was fully energized and rotated by the engineering contractor Ausenco Bateman JV ("ABJV"), using Siemens ''gearless mill drives'' on 28th June. This followed an extensive testing and commissioning program of the mills, including mechanical, electrical and electronic tests
Ring gear drives huge grinding mill. ... At the ndida copper mine in Chile''s Atacama Desert, one such mill is scheduled to go into action this summer. ... The SAG mill is followed by two 20 ...
The Selection and Design of Mill Liners . Malcolm Powell*, Ian Smit#, ... Mines (WA) 36ft SAG mill the number of Outer Head Liners was reduced from 36 to 18 pieces and in doing so reduced the time to replace them by 9 hours at a cost downtime saving of about U25,000 per hour. In this case the liners sections are t each.
tional characteristics of a drive for SAG mills, Section III describes the most likely fault conditions and Section IV presents protection schemes and results. II. Background This part of the paper is dedicated to reviewing the normal operation of the drive. Fig. 2 presents the simplified power circuit of a typical drive for high power SAG mill.
Home Drivetrains Gearless Drives from Siemens Helping Improve Efficiency and Reliability of Mine Conveyor System ... The Siemens'' scope of supply includes additionally the entire switchgears and gearless drive systems for a 40 ft. SAG mill and two 26 ft. ball mills with the associated power supply.
Review, the steel ball (ADI) life is ordinary low chromium grinding balls with the operating conditions of 23 times, is times of high chrome casting balls and forging balls,save grinding mechanical and electrical consumption of 1015%, increase the output capacity more than 5%, reduce 5 db noise, impact toughness ak = 1221 j/cm2, is an ideal grinding balls for large ball mill and SAG ...
If the SAG mill is not intended to be the ratelimiting step in a process plant, then it is best to adjust the SAG load (and power) to hold a constant tonnage to satisfy another constraint elsewhere. Underground mines are an example: the hoisting capacity of the mine shaft is the ratelimiting step in the process, and the SAG mill must adapt to ...
Starkey Associates uses the patented SAGDesign technology to calculate accurate mill sizes from measurements on a client''s own ore samples. SAGDesign technology has become a standard for 21 st century grinding circuit design for the following reasons: Precisely measures SAG and ball mill .
PulpMax Composite Mill Liners are highperformance lightweight mill liners uniquely constructed with a rubber, ceramic matrix, and carefully selected highhardness steel inserts. Designed for a number of minerals processing applications, they are customisable to fit the specifications of your SAG or ball mill.
CANDELARIA 2 Chile SAGMill 36 12,000 1997 PELAMBRES 2 Chile SAGMill 36 13,311 1999 PELAMBRES 1 Chile SAGMill 36 13,311 1999 OLYMPIC DAM Australia AGMill 38 18,000 1998 ANDINA Chile SAGMill 36 12,000 1998 CADIA Australia SAGMill 40 20,000 1998 Plant Country Type of Mill ID of Mill (ft) Rated Power (kW) Startup SIMINE Mill Gearless Drive
Los Bronces open cut mine is located in the Andean Mountains 65km northeast of Chile''s capital, Santiago. Extracted ore is transported to the new primary crusher installed near the mine site. The crushed ore is sent by a conveyer to the grinding plant at Confluencia that houses two ball mills and one SAG mill.
Early SAG mills had a diameter of about 32'', later increasing to 34, 36, 38 and 40''. At the same time the mill volume also increased. Typically a SAG mill has a much larger diameter compared to its length. Yet the SAG mill of Newmont''s Yanacocha mine in Peru is a single stage mill (no ball mill after the SAG mill.
SINGLE STAGE SAG/AG MILLING DESIGN ABSTRACT Single stage semiautogenous / autogenous (S/AG) milling has become a common design for a variety of ore types with the advantages of being comparatively low capital cost and flexible for future expansion. The single stage
View Joel Sierra Irribarra''s profile on LinkedIn, the world''s largest professional community. Joel has 7 jobs listed on their profile. See the complete profile on LinkedIn and discover Joel''s ...
SAG mill Feed rate Weight BrainWave BrainWave Rotation Recyle rates BrainWave SAG mill Stabilize and improve your SAG mill operations. BrainWave stabilizes the operation of the SAG mill, resulting in improved operation and increased production. BrainWave SAG mill is a unique control package using patented modelbased predictive adaptive control
EquipmentMine is a searchable database of new, used and surplus mining equipment and parts available for sale.
Siemens has provided about 80 SIMINE Gearless mill drives to the mining industry since 1980. In these thirtyplus years, SIMINE Gearless mill drives have accumulated a combined total of over 500 years in operation time – and this number is steadily growing even as you read this. This is a benchmark we are immensely proud of. Your benefits
have kept pace. In 1988, Siemens provided the first GMD for semiautogenous. grinding (SAG) mills in the framework of. an order for two 32foot SAG mills with. a performance of 11,200 kW. This project for the Chuquicamata mine in Chile. represented a monumental achievement, as the difference between creat ... 36 ft SAG mill 2. Chuquicamata ...
As one of the world''s biggest copper ore operations, the Chilean mining company Compañía Minera Doña Inés de Colluasi SCM based in Las Condes/Chile commissioned Siemens to modernize the drive system of four of its ore mills. The mine is located in the North of Chile, around 180 kilometers southeast of the port of Iquique.
SAG mill level control. SAG mill temperature monitoring. SAG mill condition monitoring. Ball mill temperature monitoring. ... Siemens offers a comprehensive product range for the mining industry and has a solution for even the most difficult measurement tasks. Level Measurement.
WhatsApp)