grinding mill ball patent
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grinding mill ball patent

US4966331A - Stirred ball mill for grinding pigments ...

US4966331A US07/325,114 US32511489A US4966331A US 4966331 A US4966331 A US 4966331A US 32511489 A US32511489 A US 32511489A US 4966331 A US4966331 A US 4966331A Authority US United States Prior art keywords stirrer grinding container webs balls Prior art date 1986-12-11 Legal status (The legal status is an assumption and is not a legal conclusion.

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US5383615A - Ball milling apparatus - Google Patents

A ball mill for use in mechanical alloying and grinding comprising a plurality of ferromagnetic balls within a spherical or cylindrical chamber or cell of a paramagnetic material. The chamber has a substantially horizontal axis of rotation. At least one magnet is mounted outside the chamber to produce a magnetic field within the chamber.

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US9216418B2 - Hydraulic milling ball feed ... - Google Patents

grinding ball mill container grinding bodies auxiliary Prior art date 2010-11-26 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Active, expires 2032-03-10 Application number US13/902,396 Other versions

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US687519A - Tubular ball-mill. - Google Patents

The object of the present invention is a tubular ball-mill of the described class, in which the grinding may be effected in less time than heretofore and in which themill may be used for grinding softer material than customary-such as, for instance, coaleven if this material be fed into the mill

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US2500908A - Gyratory impact ball mill and grinding method ...

US2500908A US794053A US79405347A US2500908A US 2500908 A US2500908 A US 2500908A US 794053 A US794053 A US 794053A US 79405347 A US79405347 A US 79405347A US 2500908 A US2500908 A US 2500908A Authority US United States Prior art keywords bowl grinding mass impacting impact Prior art date 1947-12-26 Legal status (The legal status is an assumption and is not

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WO2009077940A1 - A method of grinding a ... - Google Patents

A method of grinding a mineral-containing ore, which includes grinding the mineral-containing ore in a primary milling process and thereafter fine grinding the mineral-containing ore in a secondary ball-mill. A composite grinding medium comprising a mixture of steel balls and pebbles is used in the secondary ball-mill. The pebbles have an average size which is relatively smaller than the ...

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Ball mill - Starkey Associates Grinding Design and ...

The present invention relates to a SAG mill, and especially to a SAG mill for the milling or grinding of samples of ore on a scale that is suitable for use in design of a commercial scale SAG mill for the grinding of ore. An embodiment of the SAG mill is illustrated in the drawings. FIG. 1 shows a ball mill, generally indicated by 10.

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US7744027B2 - Planetary ball mill - Google Patents

A planetary ball mill includes: a revolution turning arm turned about a revolution shaft rotated by a driving force; mill pots each supported on the revolution turning arm so as to be rotated about a rotation shaft inclined from the vertical direction toward the side of the revolution shaft; and an outer circumferential pot receiver which is disposed fixedly on the upper side of the revolution ...

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Axially reciprocating tubular ball mill grinding device ...

A ball mill, comprising: a sample holder comprised of a plurality of vessels, each vessel having a tubular configuration and a longitudinal axis about which an interior for performing ball grinding is defined; and means for reciprocating a drive rod coupled to the sample holder in a substantially frictionless manner and in a direction ...

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Ball mill - RILEY STOKER CORP

Means and methods of supplying heat to grinding mills: 1963-02-19: 3032280: Ball mill with material separators at each end for recycling oversize material: 1962-05-01: 2316875: Pulverizing mill control system: 1943-04-20: 2285429: Pulverization: 1942-06-09: 2256841: Grinding mill: 1941-09-23: 2174630: Classification system for pulverized ...

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Ball mill - Starkey Associates Grinding Design and ...

The present invention relates to a SAG mill, and especially to a SAG mill for the milling or grinding of samples of ore on a scale that is suitable for use in design of a commercial scale SAG mill for the grinding of ore. An embodiment of the SAG mill is illustrated in the drawings. FIG. 1 shows a ball mill, generally indicated by 10.

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Ball mill - RILEY STOKER CORP

Means and methods of supplying heat to grinding mills: 1963-02-19: 3032280: Ball mill with material separators at each end for recycling oversize material: 1962-05-01: 2316875: Pulverizing mill control system: 1943-04-20: 2285429: Pulverization: 1942-06-09: 2256841: Grinding mill: 1941-09-23: 2174630: Classification system for pulverized ...

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Patents Assigned to Netzsch-Feinmahltechnik GmbH - Justia ...

Abstract: The invention relates to an agitator ball mill, with a grinding container, the inner side of which is made of a ceramic material, a rotor arranged inside the grinding container with a grinding gap formed between the surface of rotor and the inner side of the grinding container, a plurality of cams, fitted to the inner side of the grinding container and extend radially inwards.

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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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GRINDING MILLS - DOMINION ENG WORKS LTD,CA

What I claim as new and desire to secure by Letters Patent of the United States is 1. A grinding mill for reducing friable material to a pulp condition, having a rotatable shell, at least one material reducing zone therein, loading means at one end of the shell to supply said material to said zone, intermediate partition means within the shell spaced axially from the shell other end to form an ...

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US Patent for Ring for grinding mill Patent (Patent ...

Mar 31, 2010  Justia Patents Centrifugally Urged Toward Contact US Patent for Ring for grinding mill Patent (Patent # 9,636,683) Ring for grinding mill . Mar 31, 2010 - Magotteaux International S.A. A segmented grinding ring for centrifugal vertical roller mills is provided. The segmented grinding ring includes multiple cast segments which may be vaulted ...

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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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(PDF) Grinding in Ball Mills: Modeling and Process Control

According to [26], when grinding in a ball mill, the reduction in size occurs according to three mechanisms of fragmentation: abrasion, splitting, and destruction ( Figure 3). In comparison with ...

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Grinding Mill Liners - Mineral Processing Metallurgy

May 01, 2018  Ball mills working as the secondary portion of a grinding circuit will utilize the lower profile liners. The reason is as lift decreases, friction increases. ... Grinding Mill Rubber Liners. ... The patent for the combination liner was issued for a

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Grinding time for ball mills - Grinding Classification ...

To participate in the 911Metallurgist Forums, be sure to JOIN LOGIN Use Add New Topic to ask a New Question/Discussion about Grinding. OR Select a Topic that Interests you. Use Add Reply = to Reply/Participate in a Topic/Discussion (most frequent). Using Add Reply allows you to Attach Images or PDF files and provide a more complete input. Use Add Comment = to comment on someone else’s ...

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Performance enhancement tools for grinding mills

PERFORMANCE ENHANCMENT TOOLS FOR GRINDING MILLS 103 The need for new instruments ... SAG and ball mills have grown in size and there are now ... *Impactmeter patent pending in Australia, Canada, Chile, South Africa and USA. 104 PLATINUM ADDING VALUE Figure 1. Effect of mill speed and lifter profile on load trajectors

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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

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LINER FOR GRINDING MILLS - NORMAN T,US

Both ball mills and rod mills have been used for grinding ores or the like, such a mill normally being a rotating cylinder containing a number of balls or rods formed of steel, usually special alloy steels, which crush and comminute the ore between them or against the side of the mill, or perhaps the end thereof.

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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

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Ball mill - RILEY STOKER CORP

Means and methods of supplying heat to grinding mills: 1963-02-19: 3032280: Ball mill with material separators at each end for recycling oversize material: 1962-05-01: 2316875: Pulverizing mill control system: 1943-04-20: 2285429: Pulverization: 1942-06-09: 2256841: Grinding mill: 1941-09-23: 2174630: Classification system for pulverized ...

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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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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 ...

Read More
GRINDING MILLS - DOMINION ENG WORKS LTD,CA

What I claim as new and desire to secure by Letters Patent of the United States is 1. A grinding mill for reducing friable material to a pulp condition, having a rotatable shell, at least one material reducing zone therein, loading means at one end of the shell to supply said material to said zone, intermediate partition means within the shell spaced axially from the shell other end to form an ...

Read More
LINER FOR GRINDING MILLS - NORMAN T,US

Both ball mills and rod mills have been used for grinding ores or the like, such a mill normally being a rotating cylinder containing a number of balls or rods formed of steel, usually special alloy steels, which crush and comminute the ore between them or against the side of the mill, or perhaps the end thereof.

Read More
US Patent for Ring for grinding mill Patent (Patent ...

Mar 31, 2010  Justia Patents Centrifugally Urged Toward Contact US Patent for Ring for grinding mill Patent (Patent # 9,636,683) Ring for grinding mill . Mar 31, 2010 - Magotteaux International S.A. A segmented grinding ring for centrifugal vertical roller mills is provided. The segmented grinding ring includes multiple cast segments which may be vaulted ...

Read More
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

Read More
(PDF) Grinding in Ball Mills: Modeling and Process Control

According to [26], when grinding in a ball mill, the reduction in size occurs according to three mechanisms of fragmentation: abrasion, splitting, and destruction ( Figure 3). In comparison with ...

Read More
Impact mill - Wikipedia

Description. The other class of mills are "attrition" or grinding mills. Impact mills pulverize the material upon impact. The feasibility of impact mills was greatly enhanced by the mechanization and engineering of the Industrial Revolution.Prior to the industrial revolution, milling was primarily done by attrition or grinding

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Grinding time for ball mills - Grinding Classification ...

To participate in the 911Metallurgist Forums, be sure to JOIN LOGIN Use Add New Topic to ask a New Question/Discussion about Grinding. OR Select a Topic that Interests you. Use Add Reply = to Reply/Participate in a Topic/Discussion (most frequent). Using Add Reply allows you to Attach Images or PDF files and provide a more complete input. Use Add Comment = to comment on someone else’s ...

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Ball mill - Fryma, Maschinen Rheinfelden A. G.

I claim: 1. A ball mill apparatus for the continuous crushing and dispersing of a solid grinding stock which is conveyed along in a fluid, comprising an annular-gap-shaped grinding chamber which is rotationally symmetric with respect to a vertical centre axis, formed between a stator and a rotor coupled to a drive, which chamber has an at least approximately V-shaped cross-section on both ...

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Powder Equipment, Grinding Mill - PATENT INVENTION

Shandong Alpa Powder Technology Co., Ltd., Experts in Manufacturing and Exporting Powder Equipment, Grinding Mill and 502 more Products. A Verified CN Gold Supplier on Alibaba.

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EFFECTS OF GRINDING MEDIA SHAPES ON BALL MILL

EFFECTS OF GRINDING MEDIA SHAPES ON BALL MILL PERFORMANCE Niyoshaka Nistlaba Stanley Lameck A dissertation submitted to the Faculty of Engineering and The Built Environment, University of the Witwatersrand, Johannesburg, in fulfilment of the requirements for

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Ball Mill, Grinding Mill, Ball Mill Manufacturers, Ball ...

Energy Saving Ball Mill 【Introduction】: A high efficiency and energy saving ball mill with rolling bearing 【 Capacity 】: Up to 160t/h 【Improvement】: Cylindrical energy saving grid ball mill is lined grooved ring plate which increases the contact surface of ball and ore and strengthens the grinding.

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