large sag and ball mill drive systems
About Us
Henan LIMING Heavy Industry Science and Technology Co. LTD which mainly manufacture large and medium-sized crushing and grinding equipments was founded in 1987. It is a modern joint-stock corporation with research, manufacturing and sales together. The Headquarter is located in HI-TECH Industry Development Zone of Zhengzhou and covers 80000 m ². Another workshop in Shangjie Industry Park covers 67000 m ². Over the more than 30 years, our company adheres to modern scientific management system, precision manufacturing, pioneering and innovation. Now LIMING has become the leader in domestic and oversea machinery manufacturing industry.
120
million
cubic meters
Industrial chain production base
70
national patents
689sets
national patents
170
Equipment service country
Company Culture
core values of the company
Create Value
Share Value
Observe Order
Respect Value
Service philosophy
Religious, fine, tight, and harmonious
LIMING spirit
Standardization, value, serialization, and differentiation will always exceed our contract
Brand Concept
Create and promote civilization, refine and interpret brilliantly
Business philosophy
Religious, meticulous, rigorous, and harmonious work
Our Global Footprint
Case Scene
Gearless mill drives - Grinding ABB
ABB’s GMD is the most powerful mill drive system in the market to power semiautogenous (SAG), ball and autogenous (AG) mills, This ’workhorse’ for grinding operations combines a robust, service-friendly and fit for purpose design to provide highest throughput, reliability
Ball mill/SAG mill drive lubrication system IEEE ...
2015-6-15 Abstract: This paper describes the function and operation of lubrication systems for Ball Mill and SAG Mill Drives. Provided within this paper are hydraulic schematics, functional description and a general overview of system layout as well as some of the important features and factors relevant to improving the reliability of this very critical part of the grinding mill drive system.
Benefits of continuous data acquisition from critical ...
2021-6-1 from critical large drive systems in a mine operation Luis Galarza. 2 ... (SAG) and Ball mills. Traditionally moved through a girth gear either with single or dual pinion, there are several ... Figure 3 shows a ball mill with a dual pinion drive 2x 6500 kW with low speed induction motors (LSIM).
GMD system for Toromocho mine ABB
As a result, ABB developed three of the largest diameter and most powerful drive systems for a SAG and two ball mills installed at the highest altitude to date. The fully integrated and optimized solution for the grinding circuit consists of: 1 x 28 MW GMD to power the 40 ft SAG mill
Toromocho – A giant in high-altitude mining
2021-2-16 28-foot ball mills have a power rating of 22 MW. They are the largest diameter and most powerful SAG and ball mills drive systems at the highest altitude installed to date. All three mills were supplied by FLSmidth.
SAG Milling in Australia -Revised Submission
2014-10-1 The CCV – ring motor (gearless) drive is used at Cadia (20 MW) and Olympic Dam (18 MW). It has been the industry standard for SAG mills above 13 MW capacity. However, pinion systems to 8 MW per pinion and dual motor systems with quadruple pinions extend the range of gear driven mills to a theoretical limit of 32 MW. The Ernest Henry SAG mill (11 MW) is currently the largest twin pinion
Autogenous and Semi-Autogenous Mills FLSmidth
Rely on our proven track record of SAG and AG Mill superiority. Since the early 1980s, we have been designing and manufacturing Semi-Autogenous (SAG) and Autogenous (AG) Grinding Mills under the Fuller-Traylor brand. Semi-autogenous grinding uses a minimal ball
Drive Systems offers complete supply and service of ...
Major services include pump and fan drives, conveyor systems, SAG Ball Mill drives, automation systems. Leading Mining Quarry, Food Beverage, Pulp Paper, Agricultural and General Manufacturing organisations, turn to Drive Systems for our comprehensive range, extensive industry experience and application know-how.
Increasing availability through advanced Gearless Drive ...
2021-6-16 Mill speed can be adapted to upstream and downstream processes – avoids overgrinding, and optimizes load distribution between SAG and ball mill (Mular, Halbe Barratt, 2002). Power consumption is influenced by load respectively torque and mill speed. This means that further energy can be saved if a mill speed below the rate speed is re-
Preprint 13-050
2018-2-20 Some consultants have the view that the gear drive is limited in power. Mr Craig Denecki (Falk Milwaukee) in his paper, presented at the 1996 SAG mill conference, provided details of the then largest gear drive in operation on a SAG mill (34ft x 18ft) at Escondida 13.4MW, which began operation in 1995. The reason for not having larger gear drives
GMD system for Toromocho mine ABB
As a result, ABB developed three of the largest diameter and most powerful drive systems for a SAG and two ball mills installed at the highest altitude to date. The fully integrated and optimized solution for the grinding circuit consists of: 1 x 28 MW GMD to power the 40 ft SAG mill. 2 x 22 MW GMDs to power two 28 ft ball
Toromocho – A giant in high-altitude mining
2021-2-16 The three gearless mill drive (GMD) systems are the ABB most powerful ever made. The GMD for the 40-foot SAG mill has a power rating of 28 megawatts (MW), and the GMDs for the two 28-foot ball mills have a power rating of 22 MW. They are the largest diameter and most powerful SAG and ball mills drive systems at the highest altitude installed to ...
STEPPING FORWARD: USING VARIABLE SPEED DRIVES
2017-4-10 The breakage rate function shape of the SAG mill is largely governed by the mill load particle size distribution and mill speed. The feed in the mill contains fractions of ore that serves as the grinding media. Larger ore fractions break the smaller particles but also breakdown themselves and exit the mill as a
Autogenous and Semi-Autogenous Mills FLSmidth
Rely on our proven track record of SAG and AG Mill superiority. Since the early 1980s, we have been designing and manufacturing Semi-Autogenous (SAG) and Autogenous (AG) Grinding Mills under the Fuller-Traylor brand. Semi-autogenous grinding uses a minimal ball
Increasing availability through advanced Gearless Drive ...
2021-6-16 Mill speed can be adapted to upstream and downstream processes – avoids overgrinding, and optimizes load distribution between SAG and ball mill (Mular, Halbe Barratt, 2002). Power consumption is influenced by load respectively torque and mill speed. This means that further energy can be saved if a mill speed below the rate speed is re-
Drive Systems offers complete supply and service of ...
Major services include pump and fan drives, conveyor systems, SAG Ball Mill drives, automation systems. Leading Mining Quarry, Food Beverage, Pulp Paper, Agricultural and General Manufacturing organisations, turn to Drive Systems for our comprehensive range, extensive industry experience and application know-how.
Industrial Ball Mills: Steel Ball Mills and Lined Ball ...
Steel Ball Mills Lined Ball Mills. Particle size reduction of materials in a ball mill with the presence of metallic balls or other media dates back to the late 1800’s. The basic construction of a ball mill is a cylindrical container with journals at its axis. The cylinder
Solutions for the mining, mineral processing and cement ...
2020-12-9 Gearboxes and drive units Pumps Difficult access sealing Worn shaft/rod sealing Ball and SAG mill trunnion and gearbox drive systems (where lengthy strip down is a costly problem) SKF provides a large variety of customized seals for machines in the mining, mineral processing and cement
AN OVERVIEW OF SINGLE STAGE AUTOGENOUS AND
2014-10-1 3 SAG mill (8 – 15% ball charge) Variable competency ore 4 High ball charge SAG mill (15 to 25% ball charge) Incompetent ore 5 Low ball charge SAG mill, high mill speed. (4% ball charge, 90% Nc) A cross between AG and SAG for competent, abrasive ores. As typically operated in RSA. 6 SAG mill (configurations 3, and 5 ) with recycle crusher
SER DRIVE
The Slip Energy Recovery Drive (SER Drive) is a technology well proven in the industry for large power motoring systems that allows precise motor speed control at the same time that recover the slip energy in the Wound Rotor Induction Motors (WRIM).They are also the dominant technology in wind turbines.
STEPPING FORWARD: USING VARIABLE SPEED DRIVES
2017-4-10 The breakage rate function shape of the SAG mill is largely governed by the mill load particle size distribution and mill speed. The feed in the mill contains fractions of ore that serves as the grinding media. Larger ore fractions break the smaller particles but also breakdown themselves and exit the mill as a
Increasing availability through advanced Gearless Drive ...
2021-6-16 Mill speed can be adapted to upstream and downstream processes – avoids overgrinding, and optimizes load distribution between SAG and ball mill (Mular, Halbe Barratt, 2002). Power consumption is influenced by load respectively torque and mill speed. This means that further energy can be saved if a mill speed below the rate speed is re-
Drive Systems offers complete supply and service of ...
Major services include pump and fan drives, conveyor systems, SAG Ball Mill drives, automation systems. Leading Mining Quarry, Food Beverage, Pulp Paper, Agricultural and General Manufacturing organisations, turn to Drive Systems for our comprehensive range, extensive industry experience and application know-how.
Industrial Ball Mills: Steel Ball Mills and Lined Ball ...
Steel Ball Mills Lined Ball Mills. Particle size reduction of materials in a ball mill with the presence of metallic balls or other media dates back to the late 1800’s. The basic construction of a ball mill is a cylindrical container with journals at its axis. The cylinder
THE COMMINUTION CIRCUIT DESIGN FOR THE
2018-2-20 The Constancia deposit is a large-scale porphyry copper orebody located approximately 4100 m above sea level (masl) in the Peruvian Andes about 112 km south of Cusco. ... Motor Drive (GMD) SAG mill. ... each train comprised of a 16 MW SAG mill and a 16 MW ball mill. All mill
Grinding Mill - an overview ScienceDirect Topics
Mill drive arrangement. Mill drives are generally located on the outside of the mill to facilitate maintenance. • Mill discharge arrangement. If the SAG and ball mills feed separate pump systems this is not an issue. If the two stages feed the same pump system, the SAG mill
Metso to Design and Supply the World’s Largest SAG
2010-10-5 Metso has been selected to design and supply a 42ft x 25ft, (12.8m x 7.6m) 28MW gearless SAG mill, plus two 26ft x 42ft, (7.9m x 12.8m) 15.6MW ball mills and two VTM-1500-WB VERTIMILLS® for Newmont Mining’s Yanacocha Conga copper-gold project in Peru. The 42ft diameter SAG mill is the world’s largest and the first of its kind.
AN OVERVIEW OF SINGLE STAGE AUTOGENOUS AND
2014-10-1 3 SAG mill (8 – 15% ball charge) Variable competency ore 4 High ball charge SAG mill (15 to 25% ball charge) Incompetent ore 5 Low ball charge SAG mill, high mill speed. (4% ball charge, 90% Nc) A cross between AG and SAG for competent, abrasive ores. As typically operated in RSA. 6 SAG mill (configurations 3, and 5 ) with recycle crusher
Lubrication of large gear drives - klueber
2010-10-7 Large girth gear drives have proven effective in plant engineering for many decades and continue to be the type of drive unit most commonly found in tubular mills, drums and rotary kilns in the base material industry. In recent years, other types of drive units have also been increasingly used. These other types are enclosed gears
SER DRIVE
The Slip Energy Recovery Drive (SER Drive) is a technology well proven in the industry for large power motoring systems that allows precise motor speed control at the same time that recover the slip energy in the Wound Rotor Induction Motors (WRIM).They are also the dominant technology in wind turbines.
Related Cases