grinding mill ball patent

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.

GRINDING MILLS - DOMINION ENG WORKS LTD,CA

GRINDING MILLS. United States Patent 3739993. Abstract: An autogenous grinding mill of large diameter has curved lifters to give improved radially inward displacement of reduced material, after passage through the primary grates; and secondary grates in the form of box sections combined with the curved surfaces of the lifters, for segregation ...

US1368739A - Ball-grinding mill - Google Patents

BALL GRINDING MILL. APPLICATION FILED MAY 15. 1919. Patented Feb.15,1i92]1. IIVVE/VTOR WITNESS. POVL T. LINDHARD, OF BROOKLYN, NEW YORK, ASSIGNOR TO F. L. & C0,, 01 NEW YORK, N. 'Y., A...

Performance enhancement tools for grinding mills

autogenous mills grind by impact, whereas ball mills do so by attrition. As a consequence, SAG mills have been designed and operated to generate a large number of impacts by the falling load, without paying much attention to the place where these impacts are occurring. A second consequence has been that as long as the mill is consuming

US Patent for Device for propelling grinding bodies in a ...

Justia Patents Loose Grinding Body Comminutor (e.g., Ball Or Rod Mills) US Patent for Device for propelling grinding bodies in a grinding mill Patent (Patent # 4,134,557)

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 …

US647336A - Ball grinding-mill. - Google Patents

US647336A US73511299A US1899735112A US647336A US 647336 A US647336 A US 647336A US 73511299 A US73511299 A US 73511299A US 1899735112 A US1899735112 A US 1899735112A US 647336 A US647336 A US 647336A Authority US United States Prior art keywords water trough mill ball sieve Prior art date Legal status (The legal status …

Grinding Mill Design & Ball Mill Manufacturer

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 …

US975864A - Rolling-balls grinding-mill. - Google Patents

grinding ball dish mill rolling balls Prior art date 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.) Expired - Lifetime Application number US56617110A Inventor Louis Hoffmann Original Assignee ...

US2847169A - Grinding charge for ball mills - Google …

US2847169A US548924A US54892455A US2847169A US 2847169 A US2847169 A US 2847169A US 548924 A US548924 A US 548924A US 54892455 A US54892455 A US 54892455A US 2847169 A US2847169 A US 2847169A Authority US United States Prior art keywords balls grinding mill charge new Prior art date Legal status (The legal …

patent-Zhengyuan Powder Equipment

-Weifang Zhengyuan Powder Engineering Equipment Co., Ltd. Please tell us your needs. Our engineer will send you solutions and quotes for free.

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.

US Patent for Ball mill Patent (Patent # 4,715,547 issued ...

A drive body (4) which is rotationally driven via a shaft (6) projects into a fixed housing (1) closed by a cover (2). The annular-gap-shaped grinding chamber (M) formed between the housing (1) and the drive body (4) is partially filled with grinding balls, for example to 75%, and grinding stock flows continuously through it. The grinding stock enters from a product inlet (8) via the inlet gap ...

US Patent for Apparatus for feeding grinding balls Patent ...

Apparatus for feeding balls to a grinding mill. The apparatus includes a downwardly inclined chute (12) adapted to receive balls from a bin or hopper, the chute for delivering the balls to the grinding mill and means (20) for sequentially feeding the balls, one-at-a-time, to the grinding mill. The feeding means includes a first actuator (22) and a second actuator (26).

US Patent for Ball discharger for grinding mill Patent ...

A radially extending scoop is fastened internally to the discharge end wall of a ball mill structure for rotation with the mill; rotation of the mill will cause the grinding media and pulp to cascade and the scoop will fill and direct the material inwardly toward the mill center and discharge it into a conical cylinder in the mill trunnion which directs the discharge into a receptacle.

Ball-grinding mill - & CO AS F L

Ball-grinding mill - & CO AS F L. Title: Ball-grinding mill. United States Patent 1368739. Inventors: Lindhard, Povl T. Application Number: US29727619A. Publication Date:

Planetary Ball Mill PM 100 - ATS Scientific

Planetary Ball Mill PM 100 General Information 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.

US Patent for Agitator ball mill with ceramic lining ...

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.

WO2007110466A1 - Method for estimating the ball …

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 …

US Patent for Vertical ball mill with internal materials ...

A vertical ball mill for grinding a solid input material to form a slurry, and includes a grinding tank which defines a mixing chamber, rotatable main auger assembly having mixing blade in a lower portion of the mixing chamber and a materials flow guide. The flow conduit is provided within the grinding tank interior, and includes one or more conduit segments configured to direct input …

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.

Loose grinding body comminutor (e.g., ball or rod mills ...

Class / Patent application number. Description. Number of patent applications / Date published. 241170000. Loose grinding body comminutor (e.g., ball or rod mills) 46. 20130008988. PORTABLE GRINDING DEVICE - The present invention is related to a grinding device, comprising a body configured as a hollow barrel having an open and a first fixing ...

US Patent for Vibrating ball mill with heat insulated ...

A vibrating ball mill having a pair of vertically spaced horizontally disposed grinding chambers rigidly mounted as a unit in a vibrating support frame. Each grinding chamber is enclosed by an insulating sleeve and at the connecting joint between the outer wall of the grinding chamber and the supporting frame a supporting device is arranged which has good insulating characteristics …

Grinding Mills - Westpro Machinery

BALL MILL. Westpro's Ball Mills ensure fine grinding of minerals and ore. Our Ball Mills are engineered to provide the most efficient solution for fine finishing. ADVANTAGES. Liners are less expensive than Rod Mill steel liners. Ideal for …

US2633303A - Rotary grinding ball mill - Google Patents

mill ball mill grinding Prior art date 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.) Expired - Lifetime Application number US79615A Inventor Jr Edward H Cumpston

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

Grinding in ball mills is an important technological process applied to reduce the. size of particles which may have different nature and a wide diversity of physical, mechanical and chemical ...

CN109499698A - Ball-stirring mill fast grinding method ...

The invention discloses a kind of Ball-stirring mill fast grinding methods, and in the inlet of Ball-stirring mill setting impact component, material is first tentatively crushed before being sent into Ball-stirring mill；After material enters Ball-stirring mill, the agitating shaft of Ball-stirring mill keeps the same direction to run at high speed 10 ~ 20 minutes, makes to generate sharp ...

Analysis of grinding actions of ball mills by discrete ...

@article{osti_276696, title = {Analysis of grinding actions of ball mills by discrete element method}, author = {Inoue, Toshio and Okaya, Katsunori}, abstractNote = {Application of the discrete element method incorporating the simple kinetic model of the ball-to-ball and ball-to-wall interactions enables one to visualize the details of the grinding actions prevailing in the …

grinding mill ball patent in finland - alde-abi-84.de

grinding mill ball patent in finland. We offer autogenous AG semiautogenous SAG ball rod and pebble mills in sizes ranging from kWs up to 30 MW Our product range also includes a number of unique solutions including the world's largest acidresistant grinding mills which can operate with extremely corrosive slurry...

US Patent for Axially reciprocating tubular ball mill ...

A tubular vessel is loaded with a combination of grinding media and a material to be ground. The vessel is capped to contain the grinding media and material therein. Grinding of the contained material is effectuated by reciprocating the capped vessel in a direction parallel to its longitudinal axis. The grinding media may comprise either a ball or a slug, and may further utilizing a …