US1968550A

US1968550A US456613A US45661330A US1968550A US 1968550 A US1968550 A US 1968550A US 456613 A US456613 A US 456613A US 45661330 A US45661330 A US 45661330A US 1968550 A US1968550 A US 1968550A Authority US United States Prior art keywords shaft roller gear mounted carriage Prior art date 1930-05-28 Legal status (The legal status is an assumption and is not a legal …

US10322487B1

A roll grinding apparatus may comprise a frame, first and second rolls rotatably mounted on the frame in proximity to each other to grind materials passing between the rolls, and first and second motors to rotate the first and second rolls respectively. A control apparatus controls operation of at least one of the motors. The control apparatus may be configured to control the speed of the ...

Particle Size Mesh to Microns Conversion & Mill ...

Grinding. Grinding is generally considered reduction to table salt size, or about 5 to 25 mesh. Pulverizing. Pulverizing is generally considered to be reducing product to a fine powder. For instance, if you need coal, grain or other minerals to be in powder form, you would run them through a pulverizer or a roller …

US Patent for Method of grinding pharmaceutical substances ...

A method of preparing submicron particles of a therapeutic or diagnostic agent which comprises grinding the agent in the presence of grinding media having a mean particle size of less than about 75 microns. In a preferred embodiment, the grinding media is a polymeric resin. The method provides extremely fine particles, e.g., less than 100 nanometers in size, free of unacceptable contamination.

Method of roll grinding

Jan 24, 2006· We claim: 1. A method of grinding mill rolls, comprising the steps: a) providing a grinding wheel comprising abrasive grain, phenolic resin bond, 36 to 54 volume % porosity, a maximum cured density of 2.0 g/cc and a burst speed of at least 6000 sfpm; b) mounting the wheel on a roll grinding machine; c) bringing the wheel into contact with a rotating mill roll having a cylindrical surface; d ...

US Patent for Method and apparatus for grinding tires ...

Justia Patents Roll, Roller, Shaft, Ball, Or Piston Abrading US Patent for Method and apparatus for grinding tires Patent (Patent # 5,433,042) Method and apparatus for grinding tires . Apr 26, 1994 - Compagnie Generale des Etablissements Michelin-Michelin & Cie. In order to grind a tire 2 mounted on a vehicle, an abrasive belt 5 is us which is ...

Horst Brundiek Inventions, Patents and Patent Applications ...

Oct 01, 2002· Abstract: The invention relates to a roller mill, particularly a modular air-swept mill, with a rotary grinding pan on which roll grinding rollers and having columns, on which are mounted by means of rockers the grinding rollers, the columns being in each case fixed to a foundation frame and arranged as a mill foundation frame. For the use of stable and torsionally stiff columns for relatively ...

US7665681B2

A roller mill for pulverizing material and separating the pulverized material has a mill for crushing the material and a classifier disposed on the mill for separating the crushed material. The mill includes a grinding mechanism that has a plurality of grinding rolls and a grinding ring that coact to pulverize material within a mill housing, which defines a grinding chamber.

US7963471B2

A roller mill 10 for pulverizing fine material has a grinding mechanism that includes a plurality of grinding rolls 64 and a grinding ring 66 that coact to pulverize material within a mill housing. The grinding ring has an inner grinding surface wherein the inner surface includes an upper vertical portion and inwardly sloped lower portion.

Grinding method of spherical end surfaces of tapered ...

Grinding the spherical ends of the billets tapered rollers are in the corner prisms placed koltseobrazno on the end of one of the disks in the magnetic field of the annular permanent magnet located on the end face of the second disk to increase the stability of the grinding process and prevent displacement MCV with the axis of the coaxial discs ...

(Shanghai) history

So far, has got 106 national patents including 4 invention patents, 12 design patents and 90 patents for utility models. May, 2016: Heavy Industry organized 2016 China Calcium Carbonate Industry Expert Meeting. September, 2015: Grinding roller with oil pump was authorized (Patent No.: ZL 201310168555.2)

US250564A

US250564A US250564DA US250564A US 250564 A US250564 A US 250564A US 250564D A US250564D A US 250564DA US 250564 A US250564 A US 250564A Authority US United States Prior art keywords rollers roller mill depressions roller grinding Prior art date 1881-12-06 Legal status (The legal status is an assumption and is not a legal conclusion.

US Patent for Roll grinding machine Patent (Patent ...

In a roll grinding machine (2) for profile grinding of rolls with a constructionally simple device for a very precise adjustment of a grinding wheels (4) supported on a grinding spindle (7) tangentially with respect to a roll profile, the grinding spindle (7) is arranged in a rotatable sleeve (8) the longitudinal axis (9) of which is inclined at an angle (10) relative to the longitudinal axis ...

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

Mar 31, 2010· The prior art discloses various grinding mill types. A typical configuration of a vertical roller centrifugal grinding mill comprising a grinding ring cooperating with a plurality of centrifugally operating grinding rollers is disclosed in the document U.S. Pat. No. 4,022,387 (see FIG. 1). To avoid extensive comments on how such a type of ...

Roller Mill Grinder

In a roller grinder, the beans are ground between pairs of corrugated rollers. A roller grinder produces a more even grind size distribution and heats the ground coffee less than other grinding methods. However, due to their size and cost, roller grinders are used exclusively by commercial and industrial scale coffee producers.

Roller grinding mill apparatus

May 10, 1977· Roller grinding mill apparatus comprising a stationary bull ring which cooperates with a plurality of centrifugally operated grinding rollers and means for setting a predetermined gap space between the grinding rollers and the grinding face of the bull ring so that the grinding rollers will be unrestricted so as to move in radial directions in response to centrifugal force, but will not ...

US5000392A

1. A grinding roller for use in a material bed roller mill in which brittle material for subsequent grinding is crushed between two rollers which are pressed against one another with high pressure, said grinding roller comprising a basic roller body and a roller shell made of a relatively hard cast material and composed of individual segments each including a shell surface, the segments being ...

Method of grinding taper roller spherical ends

The method of grinding the spherical ends of the tapered rollers in the dynamics. Before grinding conical rollers 1 set up the machine. Rule and balance the set assembled from three parts of the grinding wheel 22 on the radius of the sphere R SF. In the spindles 3 install the sleeve 2.

SG71081A1

roller press grinding plant press grinding plant roller Prior art date 1998-01-26 Application number SG1998000191A Inventor Lee In Youn Yang Jian Ling ... 1998-01-26 Priority to SG1998000191A priority Critical patent/SG71081A1/en 2000-03-21 Publication of SG71081A1 publication Critical patent/SG71081A1/en Links.

Method of reconditioning worn

Grinding roller that is regenerated by the method of agreement is but the invention (in contrast to the grinding roll according to DE 196 18 143 A1), not used in mode grinding until then, until you wear out completely and/or does not fall out of body roll and a significant proportion of all relevant phone moreover, to restore not wait until the ...

Method of grinding taper roller spherical end faces

The invention relates to mechanical engineering and can be used in the bearing industry. Known similar methods of grinding spherical ends of the tapered rollers (A.S. 1033291 from 19.04.82, BI NO. 29, 1983; A.S. 1212764 from 23.12.83, BI NO. 7, 1986; A.S. 1278188 from 10.04.85, BI, No. 47, 1986), in which the rollers are between the two protruding pressed against each other discs.

Method for grinding roll of centerless super

The method relates to the grinding surfaces and is intended for the manufacture of the roll centerless superfinishing machine. Roller device, being one of the most difficult parts centerless superfinishing machine, provides hosting, circular and longitudinal feed products.

Werner Baltensperger Inventions, Patents and Patent ...

Abstract: In a method for setting the spacings of grinding rollers (2, 2') in roller frames (1) of a cereal milling plant, the roller frames are in each case followed by a screening system (14), from which a test signal is tapped and supplied to a computer (7), which compares it with a stored desired value and in the case of a variation brings ...

ROLLER MILL WITH ROTATING GRINDING ...

Apr 18, 1972· The invention relates to shaft driven roller grinding mills. More in particular, the invention concerns a roller mill with a rotary grinding vessel where the grinding vessel is put in rotation by drive means in the base of the mill with an intermediate transmission.

ring roller grinding

US Patent for Ring for grinding mill Patent (Patent ... A segmented grinding ring for centrifugal vertical roller mills is provided. The segmented grinding ring includes multiple cast segments which may be vaulted together ... Inquire Now; ring roller mill crusher educationcare.in. May 4, 1999 ...

grinding roller mill

The invention relates to a roller grinding mill having a milling bowl (3) which can be rotated about a milling axle (2) and on the milling track (4) of which milling rollers (5) which are arranged in a stationary manner roll and in the process describe a running circle having an internal diameter (DWI) and an external diameter (DWA) on the milling track with their circumferential surfaces (6 ...

Raymond® Fine Grinding Roller Mill

Raymond® Fine Grinding Roller Mill For finer products and increased production. The Raymond® fine grinding roller mill (US Patent Nos. 7665681 and 7963471) was specifically designed to achieve a product size distribution with d50 measurement of less than 10 microns. Available as new roller mills or as a retrofit to your existing mill.

Roller Mills | Grinding Mills | Williams Crusher

Features of the Roller Mill. Williams Patent Crusher: The Acknowledged Leader in Fluid Bed Roller Mill Design. Roller mills are industrial mills that, instead of using flat plates, uses cylindrical rollers to crush and grind material. ... Product size (regardless of turn down or grinding element wear) is controlled by utilizing the Williams ...