grinding mill ball patent

grinding mill ball patent

WO2007110466A1 - Method for estimating the ball charge of ...

In the present invention a method, apparatus and computer program are presented, with which the amount of balls among ore material contained in a grinding mill is estimated as a percentage by volume of the total volume of the mill. Preferably, the invention relates to semi-autogenous mills. In the invention, an expanded Kalman filter is used to estimate the ball charge such that measurements ...

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US Patent Application for Nano grinding mill (dried type ...

Aug 11, 2003  A nano grinding mill, wherein the disc plate mounted on the lower turntable and a ball coupled to the end portion of each pressure grinding rod are replaceable with those made of a ceramic or diamond-coated material depending on the hardness of the material to be ground, so that grinding is conducted at the disc plate and the ball.

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CONTROL SYSTEM AND METHOD FOR A REVERSED BALL MILL ...

United States Patent 3783252. Abstract: The dynamically fast in response and stable control arrangement for a reversed ball mill grinding circuit, which operates in accordance with the basic control algorithm that the new material feed rate to the reversed ball mill grinding circuit is controlled as a function of the net output solids flow ...

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INFLUENCE OF VISCOSITY ON GRINDING IN BALL-MILLS. A

Ball-milling is a convenient, mechanical, operation used widely for the comminution of minerals, and for the preparation of colloidal dispersions. Patents were taken out in this country for the use of the ball-mill, as early as 1S63 by R. Brooman. The early mills were used mainly for the grinding of metalliferous ores and ceramic materials.

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The grinding body for ball mills

Patent registration. The grinding body for ball mills. C21D9/36 - for balls; for rollers (57) Abstract: The invention relates to the field of engineering, namely the grinding bodies for ball mills used for grinding ores, coal, clinker and other materials in metallurgical, cement, coal industries, as well as in the manufacture of refractories ...

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National Patent Zm Autogenous Grinder--grinder Ball Mill ...

This series product has gained patent (Patent No: ZL200420075311.6), and are mainly used in autogenously grinding and separating slag and steel to improve the production and grading. It also can be used in foundry works to remove the bonding residue on the small casting pieces’ surface, etc. ZM Autogenous Grinder,mining grinder mill

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Friedrich Fischer - Wikipedia

Friedrich Fischer (March 19, 1849 – October 2, 1899) from Schweinfurt, Germany is considered the father of the modern ball bearing, having invented the process for milling standard bearings in 1883.. Biography. Fischer designed the ball grinding mill, a machine that allows steel balls to be ground to an absolutely round state in large volumes for the first time.

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Emax: High Energy Ball Mill from RETSCH : Quote, RFQ ...

The E max is a new kind of ball mill specifically designed for high energy milling. The unique combination of high impact and friction produces ultrafine particles in a very short amount of time. The optimized jar design and an unrivaled speed of 2000 min-1 produces the high energy input. Thanks to the new cooling system with water, the high energy input is efficiently employed for the ...

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Planetary Ball Mill PM 200 - RETSCH - short grinding times

Planetary Ball Mills are used wherever the highest degree of fineness is required.Apart from the classical mixing and size reduction processes, the mills also meet all the technical requirements for colloidal grinding and have the energy input necessary for mechanical alloying processes.The extremely high centrifugal forces of a planetary ball mill result in very high pulverization energy and ...

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PERI™ AutoCharge Mill Grinding Ball Charging System

Our PERI AutoCharge Mill Grinding Ball Charging System is designed to provide a controlled continuous supply of balls to maintain consistent ball loading in the grinding mill. Continuously charging grinding balls will allow your mill to maintain a consistent power draft, charge volume, ore feed rate, or consumption average (kg/t).

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Grinding Ball Mill Suppliers, Manufacturer, Distributor ...

Alibaba offers 859 Grinding Ball Mill Suppliers, and Grinding Ball Mill Manufacturers, Distributors, Factories, Companies. There are 484 OEM, 449 ODM, 125 Self Patent. Find high quality Grinding Ball Mill Suppliers on Alibaba.

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Grinding Mill Design Ball Mill Manufacturer

Feb 20, 2017  All Grinding Mill Ball Mill Manufacturers understand the object of the grinding process is a mechanical reduction in size of crushable material. Grinding can be undertaken in many ways. The most common way for high capacity industrial purposes is to use a tumbling charge of grinding media in a rotating cylinder or drum.

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K Series Mobile Crushing Plant - logisticsway

grinding efficiency ball mill gypsum powder; williams patent crusher pulverier ; australian production brown coal; rocks and minerals for sale ; pakistan steel mill used products; dolomite crusher best stonecrusher ; 110 volt hydraulic pump unit; high quality quartz

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Methods of operating ball grinding mills - W. R. Grace Co.

This invention relates to electrical motor driven drum type ball grinding mills and more particularly it relates to methods of monitoring and operating such mills to improve throughput efficiencies. BACKGROUND ART. The monitoring of a ball grinding mill or equivalent through electrical signals derived from the mill in operation has long been known.

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Grinding machine for ball end mills with helical cutter ...

a grinding wheel mechanism tiltable laterally about a Y axis and having grinding wheel shafts for alternatively supporting face and flank grinding wheels and means for moving the grinding wheel shafts to enable the tip end of a cutter tooth being generated on said ball end mill to lie in a prescribed point on the Y-axis at all times, the ...

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Grinding mill control system - Dominion Engineering Works ...

A grinding mill such as an autogenous mill or ball mill, having a large driving gear driven by two motors, wherein a soft start capability is provided by a clutch or clutches, is "finger-printed" in relation to the reduction gear system in order to identify optimum conditions for locking up the drive to achieve substantially equal loading between the drive motors, and to diminish cyclic ...

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CEMENT GRINDING AID COMPOSITION - Dow Global

Grinding trials are conducted in a lab-scale ball mill with feed material containing cement clinker, gypsum (equivalent to 1.9-2.3% SO3 content) and fly ash (25% content) to generate samples of Pozzolona Portland Cement (PPC), and grinding media (steel balls) to a feed ratio of 6:1.

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SU304789A2 - Mill for ultrafine ... - patents.google

mill nozzles mineral materials organic disks Prior art date 1970-01-05 Application number SU701396352A Other languages Russian (ru) Inventor В.П. Соловьев В.В. Кафаров Г.П. Стульников Original Assignee Solovev V P Kafarov V V Stulnikov G P Priority date (The priority date is an assumption and is not a legal ...

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Grinding Mills - an overview ScienceDirect Topics

The circuit comprises a SAG mill, 12 m diameter by 6.1 m length (belly inside liners, the effective grinding volume), two pebble crushers, and two ball mills in parallel closed with cyclones. The SAG mill is fitted with a 20 MW gearless drive motor with bi-directional rotational capacity.

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Grind - Molycop

Molycop manufactures grinding balls to exacting internal specifications at its grinding media production facility across the globe. Balls for use in mineral processing ball milling operations are designed for maximum abrasion resistance using high carbon content and high hardness levels.

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Hammer Mills for Material Reduction Williams Patent Crusher

HAMMER MILLS. Williams Patent Crusher is a leading industrial hammer mill manufacturer. Our industrial size reduction machines can handle any material size reduction job. Choose a Williams machine for high efficiency and economy. Using midair and impact crushing, grinding, and shredding, our machines can handle virtually any material.

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Grinding Mills - Common Types

Nov 07, 2016  In Fig. 1.3 is shown a large ball mill, designed for the dry grinding of limestone, dolomite, quartz, refractory and similar materials; this type of mill being made in a series of sizes having diameters ranging from about 26 in. to 108 in., with the corresponding lengths

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Grinding Mills and Their Types – IspatGuru

Apr 09, 2015  Different grinding machines are usually named as mills, for example rod mills, ball mills, and attrition mills. Because of the name, verb milling is also been used as a synonym for grinding. Milling, sometimes also known as fine grinding, pulverizing or comminution, is the process of reducing materials to a powder of fine or very fine size.

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CPC Definition - United States Patent and Trademark Office

Adjusting, applying pressure to or controlling the distance between milling members in roller mills. B02C 4/32. Driving mechanisms; Roller speed control in roller mills. B02C 4/42. Controlling the distance between discs in disc mills. B02C 7/14. Controlling the distance between discs in disc mills adapted for grain. B02C 7/186

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Heat treatment process of the high chrome cast iron ...

Ball mill is widely used in cement, electric power, mineral processing, building materials, and other industries. As the grinding medium in the ball mill, the grinding ball must have both high wear resistance and good toughness. In recent years, with the rapid development of China’s industry, the consumption of grinding ball is very large.

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Planetary Ball Mill PM 100 CM - RETSCH - gentle size reduction

Planetary Ball Mills are used wherever the highest degree of fineness is required.Apart from the classical mixing and size reduction processes, the mills also meet all the technical requirements for colloidal grinding and have the energy input necessary for mechanical alloying processes.The extremely high centrifugal forces of a planetary ball mill result in very high pulverization energy and ...

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Mill (grinding) - Wikipedia

Ball mill. A typical type of fine grinder is the ball mill.A slightly inclined or horizontal rotating cylinder is partially filled with balls, usually stone or metal, which grind material to the necessary fineness by friction and impact with the tumbling balls. Ball mills normally operate with an approximate ball charge of 30%.

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SU304789A2 - Mill for ultrafine ... - patents.google

mill nozzles mineral materials organic disks Prior art date 1970-01-05 Application number SU701396352A Other languages Russian (ru) Inventor В.П. Соловьев В.В. Кафаров Г.П. Стульников Original Assignee Solovev V P Kafarov V V Stulnikov G P Priority date (The priority date is an assumption and is not a legal ...

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Retsch GmbH - company profile, portfolio and history

Retsch revolutionalizes grinding with an entirely new type of mill: the High Energy Ball Mill Emax. 1923 The company's first own piece of laboratory equipment is developed, a mortar mill, which becomes known as the Retsch Mill and is synonymous with the concept of easier and better laboratory work. 1959

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Fluid mechanics of slurry flow through the grinding media ...

Dec 31, 1995  Songfack, P K, and Rajamani, R K. Sun . "Fluid mechanics of slurry flow through the grinding media in ball mills". United States. abstractNote = {The slurry transport within the ball mill greatly influences the mill holdup, residence time, breakage rate, and hence the power draw and the particle size distribution of the mill product.

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Chrome Grinding Media Mill Ball Casting ... - ngzcmachinery

Automatic High Chrome Grinding Ball Casting Production Line ZQJX-840-F4 . Function: Automatic Chrome Grinding Media Mill Ball Casting Line adopts sand coated in metal mold cavity technology.It is used to produce steel grinding media ball from Dia 40mm to Dia 150mm.These casting chrome grinding media ball is widely used in mining industry,cement plant,power plant,etc.Grinding media ball

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The grinding balls bulk weight in fully unloaded mill

Apr 11, 2017  In the previous article we considered the method for determining the bulk weigh of new grinding media. Determination the grinding balls bulk weigh directly operating in a ball mill becomes necessary on practice. It is done in order to accurately definition the grinding ball mass during measuring in a ball mill and exclude the mill overloading with grinding balls possibility

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Grinding Media - Milling Balls - Ceramic Grinding Media ...

Grinding Media Grinding media are the means used to crush or grind material in a mill. It comes in different forms such as alumina oxide balls, ceramic cylinders, or soda lime glass. At Norstone Inc., we offer all types of medias used for grinding, deagglomeration, polishing, deburring, fillers, proppants, spacers, refractory beds and shot peening.

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What is the difference between a SAG mill and ball mill?

Ball mill. A typical type of fine grinder is the ball mill. A slightly inclined or horizontal rotating cylinder is partially filled with balls, usually stone or metal, which grind material to the necessary fineness by friction and impact with the tumbling balls. Ball mills normally operate with an approximate ball charge of 30%.

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Ball mill, Ball grinding mill - All industrial ...

Tecno 3 Srl. ball mill ML series. horizontal for ceramic for the pharmaceutical industry. ball mill. ML series. Rotational speed: 50 rpm - 300 rpm. The ball mill splits the sample because of the hits against the balls. It moves along an arc of a semi-circle due to the dragging of the pitcher in the cylinder motor.

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OULU 2014 ACTA

Grinding with a wet stirred media mill is usually the last process step befo re the submicron or nanoparticles are added to an application, and the step where the final particle size distribution is achieved. Since stirred media milling is an energy-intensive process, energy efficiency should be optimized. This can be done by determining

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Ball Mill Critical Speed Working Principle - YouTube

Jun 20, 2015  https://911metallurgist/blog/ball-mill Learn about Ball Mill Critical Speed and its effect on inner charge movements. The effect of Ball Mill RPM s...

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Mini-Mill PULVERISETTE 23 / Description - fritsch

Grinding bowl and grinding balls. The Mini-Mill PULVERISETTE 23 operates with a grinding bowl and grinding balls. To avoid undesired contamination of the sample through abrasion, we offer a selection of 3 different materials. Normally, grinding bowls and grinding balls of the same material are used.

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Ball Mill for Grinding Calcium Carbonate - Calcium ...

Ball mill grinder is usually used to grind crushed materials, such as ores, chemicals, ceramic raw material and others. This article mainly talks about ball mill for grinding calcium carbonate.Ground calcium carbonate powder is in greater demand worldwide in various industries.

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Annual review of size reduction - ScienceDirect

Jan 01, 1975  Popov et al. [164] improve the beater wear of an inertiarotor type crusher reducing coal. Tanaka et al. [210] patent the heat treating of a low alloy cast iron to produce a high impact, tough wear resistance grinding media for ball mills, while Sato [183] patents cast iron balls of high toughness and abrasion resistance.

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Metallurgy Mineral Processing - Over 9000 Members and ...

All aspects of crushing, ore conveying and screening operation and maintenance: Discuss any type of crushers: gyratory, jaw, cone, roll, HPGR, impact, hammer, etc. Crusher liner, lubrication, mantle, bowl, spider and all other components.Ore transportation on conveyor belts and through classification systems such as vibrating screens, grizzlies and feeders.

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