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

copper mine milling balls - myplacechildrencentre.co.za

Copper Ore Milling Machine. 60mm grind balls gold ore,ball mill for gold mines grinding gold ore ball mill is made excellent mining.

Ball Mills - Mine Engineer.Com

Ball Mills are generally used to grind material 1/4 inch and finer, down to the particle size of 20 to 75 microns. To achieve a reasonable efficiency with ball mills, they must be operated in a closed system, with oversize material continuously being recirculated back into the mill to be reduced. Various classifiers, such as screens, spiral classifiers, cyclones and air classifiers are used for classifying the discharge

Copper Flotation - 911 Metallurgist

16/05/2016  The rod mill and two ball mills are approximately the same size for simplified maintenance. Porphyry copper ores, usually medium to medium hard, require grinding to about 65-mesh to economically liberate the copper minerals from the gangue. Although a clean rougher tailing can often be achieved at 65-mesh the copper mineral is not liberated sufficiently to make a high grade copper concentrate, thus some form of regrinding is necessary on the rougher flotation copper

Ball Mill - an overview ScienceDirect Topics

Ball mills tumble iron or steel balls with the ore. The balls are initially 5–10 cm diameter but gradually wear away as grinding of the ore proceeds. The feed to ball mills (dry basis) is typically 75 vol.-% ore and 25% steel. The ball mill is operated in closed circuit with a particle-size measurement device and size-control cyclones. The cyclones send correct-size material on to flotation and direct oversize material

THE OPTIMAL BALL DIAMETER IN A MILL

Investigations were carried out in a laboratory ball mill having the size of DxL = 160x200 mm with a ribbed inside surface of the drum. The mill ball loading was 40% by volume, the rotation rate was equal to 85% of the critical speed. Balls were made from steel: S4146, extra high quality, having hardness 62 ± 2 HRC according to Rockwell. Grinding tests were carried out with the samples of

Ball Mills - 911 Metallurgist

13/02/2017  Ball Mills or Rod Mills in a complete range of sizes up to 10′ diameter x 20′ long, offer features of operation and convertibility to meet your exact needs. They may be used for pulverizing and either wet or dry grinding systems. Mills are available in both light-duty and heavy-duty construction to meet your specific requirements.

Grinding Media Balls for Mines and Minerals Processing ...

Copper. Bauxite. Lead – Zinc. Rock phosphate. Metal slag. Coal. There is no standard solution for mineral industry and wear rate of grinding media varies from mine to mine, ore to ore and even for the same ore time to time. Different alloys are recommended depending on ore type and mill particulars in order to arrive at the most cost economic ...

Forged steel grinding balls for copper mine and cement ...

TSF60 Taishan China, Forged steel grinding balls for copper mine and cement mill grinding Description: 1.Production process: forged 2.Material: 45# steel,60Mn steel,65Mn steel,B2 steel,B3 steel,B6

Ball mill - Wikipedia

Planetary ball mills are smaller than common ball mills and mainly used in laboratories for grinding sample material down to very small sizes. A planetary ball mill consists of at least one grinding jar which is arranged eccentrically on a so-called sun wheel. The direction of movement of the sun wheel is opposite to that of the grinding jars (ratio: 1:−2 or 1:−1). The grinding balls in ...

Ball Mills - an overview ScienceDirect Topics

The mill productivity also depends on many other factors: physical-chemical properties of feed material, filling of the mill by balls and their sizes, armor surface shape, speed of rotation, milling fineness and timely moving off of ground product. It is possible to make an approximate calculation of the capacity of a ball mill by means of the equation: N = (0.104 D 3 L ρ b.ap ϕ 0.88 + 0.1 L ...

Major Mines Projects Buenavista Mine

The ore is then sent to the ball mills, which grind it to the consistency of fine powder. The finely ground powder is agitated in a water and reagents solution and is then transported to flotation cells. Air is pumped into the cells producing a froth, which carries the copper mineral to the surface but not the waste rock, or tailings. Recovered copper, with the consistency of froth, is ...

Estimated Water Requirements for the Conventional ...

Ball mills (A) and cyclones (B) in the mill house at the Sierrita beneficiation plant in Arizona..... 10 3. Banks of rougher cells in the flotation circuit of the Sierrita copper porphyry mine, Arizona ..... 11 4. Photograph of the tailings storage facility for the Sierrita copper porphyry mine in Arizona..... 11 Tables 1. Engineering and operational parameters for a conventional copper ...

Sentinel Copper Mine, Kalumbila, North Western

FLSmidth supplied SAG mills and ball mills for the Sentinel processing plant under a contract awarded in June 2011. Metso Mining and Construction supplied two MP2500 cone crushers for the Sentinel copper mine under a contract awarded in November 2013.

Copper Mountain Mine - The Gisborne Group

Gisborne provided precise accuracy for installation of the large diameter SAG and Ball Mills. Copper Mountain has utilized some of the largest components, worldwide, for their flotation circuits and Gisborne is providing the expert installation. Scope: Construction of green field copper / gold process facility. Client Similco Mines / Copper Mountain Mining Corporation; Location Princeton, BC ...

Horizontal mills for your mining operations - FLSmdith

Ball mills ; Rod mills ; FT mills ; Rotary scrubbers . In the ever-increasing quest for reduced mineral processing costs and increased throughput tonnages, there has been a worldwide move towards larger and larger mill sizes. As such, FLSmidth has supplied some of the world’s largest horisontal grinding mills with ball mills up to 28ft in diameter (22MW) and SAG mills up to 40ft in diameter ...

Forged steel grinding balls for copper mine and cement ...

TSF60 Taishan China, Forged steel grinding balls for copper mine and cement mill grinding Description: 1.Production process: forged 2.Material: 45# steel,60Mn steel,65Mn steel,B2 steel,B3 steel,B6

Ball Mill - knowtech.cz

Ball Mill. Ball mills are used primary for single stage fine grinding, regrinding, and as the second stage in two stage grinding circuits. According to the need of customers, ball mill can be either wet or dry designs. Ball mills have been designed in standard sizes of the final products between 0.074 mm and 0.4 mm in diameter.

Ball Mill Ball Mills Wet Dry Grinding DOVE

DOVE supplies various types and sizes of Ball Mill Balls, including; Cast Iron steel Balls, Forged grinding steel balls, High Chrome cast steel bars, with surface hardness of 60-68 HRC. DOVE Ball Mills achieves size reduction by impact and attrition. When the cylinder rotates, the balls are dragged to almost the top of the shell, and from there, they fall unto the material, which lead to the ...

dia 20mm 150mm wet ball mill steel ball for mining

20mm forged steel wet ball mill ball in mines. Diameter mm forged and cast grinding steel ball for ball mill grinding balls for mining product details forged steel ball size diamm hardness hrc material and chemicalas a leading global manufacturer of crushing equipment, milling equipment,dressing equipment,drying equipment and briquette equipment etc we offer advanced, rational

Wet Grid Ball Mill - Rhyther Mining

Grid ball mill is widely used in smashing all kinds of ores and other materials, ore dressing and national economic departments like building and chemical industries etc. The size of ore shall not exceed 65mm and the best feed size is under 6mm. The effect in this job is better than coarse grinding. Grid ball mill consists of the shell, feeding part, discharging part, main bearing, lubricating ...

Copper Mountain Mine - The Gisborne Group

Gisborne provided precise accuracy for installation of the large diameter SAG and Ball Mills. Copper Mountain has utilized some of the largest components, worldwide, for their flotation circuits and Gisborne is providing the expert installation. Scope: Construction of green field copper / gold process facility. Client Similco Mines / Copper Mountain Mining Corporation; Location Princeton, BC ...

Major Mines Projects Cobre Panama Mine

The three 28 megawatt SAG mills and four 16.5 megawatt ball mills installed at Cobre Panama are the largest installed anywhere in the world, except for Sentinel. Cobre Panama’s eighth mill came on line in mid-December 2019, providing additional capacity on the third milling train. A series of small debottleneck projects were commissioned ...

Sentinel Copper Mine, Kalumbila, North Western

FLSmidth supplied SAG mills and ball mills for the Sentinel processing plant under a contract awarded in June 2011. Metso Mining and Construction supplied two MP2500 cone crushers for the Sentinel copper mine under a contract awarded in November 2013.

Energy Use of Fine Grinding in Mineral Processing

25/04/2013  mills or ball mills is usually not recommended. In their product literature, Metso give 40 lm as the lower end of the ‘‘optimal’’ P80 range for Vertimills.[6] At lower product sizes, both tower mills and ball mills will overgrind fines. At Mt. Isa Mines, a GIS mill fed with material of

Aktogay Copper Mine - Mining Technology Mining

ABB provides complete electrification and automation solutions for the Aktogay copper plant under a contract awarded in December 2012. ABB was also awarded a $44m contract in May 2012 to provide three gearless mill drive systems, including the 28MW semi-SAG mill and two 22MW ball mills.

Major Mines Projects Cobre Panama Mine

The three 28 megawatt SAG mills and four 16.5 megawatt ball mills installed at Cobre Panama are the largest installed anywhere in the world, except for Sentinel. Cobre Panama’s eighth mill came on line in mid-December 2019, providing additional capacity on the third milling train. A series of small debottleneck projects were commissioned ...

Taseko Mines Ltd. - BC Hydro

Conventional "ball mills" rotate the mill body, a horizontal cylinder, tumbling the rock with steel balls that break up the rock. In stirred mills, the mill body is stationary. The steel balls and rock are agitated by an internal auger that causes the contents to circulate, reducing the size of the rock particles. Stirred mill technology was developed in Australia and has been in use for a ...

Energy Use of Fine Grinding in Mineral Processing

25/04/2013  mills or ball mills is usually not recommended. In their product literature, Metso give 40 lm as the lower end of the ‘‘optimal’’ P80 range for Vertimills.[6] At lower product sizes, both tower mills and ball mills will overgrind fines. At Mt. Isa Mines, a GIS mill fed with material of

IsaMill Technology Used in Effecient Grinding Circuits

conventional ball and tower mill technology however the power consumptions necessary to achieve the required fine liberation sizes made them uneconomic. Further, the high rate of steel media consumption contaminated the mineral surfaces with iron, resulting in poor flotation response post regrinding. A real need had arisen for a technology that could grind to ultrafine sizes in metallurgical ...

CITIC-Heavy Industries Co. Ltd

CITIC HIC has received the order to supply a Ø8.8m x 4.8m SAG Mill for the Copper Mines or Tasmania. This has since been put on hold due to lower copper prices. 31 July 2008. Phu Kham. Phu Bia Mining extends the order to a second Ø6.2m x 9.5m - 6500kW Ball Mill for expansion of their Phu Kham operation in Laos. 15 July 2008. JiangXi Copper Order. CITIC HIC have received an order for

Palabora Mining Company Ltd

20/04/2021  Ore from the underground block-cave mine - less than 300mm in size - is conveyed to two stockpiles, each feeding two separate, autogenous wet-grinding circuits. These in turn, each comprise a 9.75 meter-diameter tumbling mill rotated by 2 x 3.5 MW drives. Large rocks impact, scrub and attrition against each other, reducing their size, which results in the liberation of the copper sulphides ...

Energy efficiency • Energy intensity in copper and gold ...

Australian scientists have evaluated the energy consumption of a total of 68 copper and gold mines covering all such mines in Australia as well as 24 % of the world’s copper mines and 15 % of the world’s gold mines [1]. While complete data for SAG and ball mills were available, only partial data were obtained for crushers and post-grinding, so that some results were estimated. Fig. 17 ...

Aktogay Copper Mine - Mining Technology Mining

ABB provides complete electrification and automation solutions for the Aktogay copper plant under a contract awarded in December 2012. ABB was also awarded a $44m contract in May 2012 to provide three gearless mill drive systems, including the 28MW semi-SAG mill and two 22MW ball mills.

KAZ Minerals Bozshakol

KAZ Minerals operates the Aktogay and Bozshakol open pit copper mines in the East Region and Pavlodar region of Kazakhstan, three underground mines and associated concentrators in the East Region of Kazakhstan and the Bozymchak copper-gold mine in Kyrgyzstan. The Group acquired the Baimskaya project in the Chukotka region of Russia in January 2019, one of the world’s most

Mantos Blancos Copper Mine - Mining Technology

The mine mainly produces copper. An investment of around $4m has been made for the completion of the construction of projects to install an additional ball mill and increase the speed of three existing mills for the Mantos division. Around $15m has been spent for