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  • US206807A Improvement in grinding mills for feed ...

    IMPROVEMENT IN GRINDING MILLS FOR FEED. Specification forming part of Letters Patent No. 206,807, dated August 6, 1878; application filed March 12, 1878. To all whom it may concern: Be it known that I, GEORGE MASTERMAN, of Mishawaka, in the county of St. Joseph, and in the State of Indiana, have invented certain new and useful Improvements in Feed (lrinding Machines and do

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  • US4185785A Grinding mill diaphragm ... Google Patents

    This invention is directed to an improved rotary grinding mill such as a ball mill, rod mill or an autogenous mill, having an improved arrangement wherein the usual quot;overflowquot; or quot;grate dischargequot; arrangements are dispensed with in favor of an annular array of lifter segments providing a diaphragm having a radial clearance from the mill shell, being spaced from the inner surface of the mill ...

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  • WO2009077940A1 A method of grinding a ... Google

    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 ...

    Cited by: 7Live Chat
  • grinding mill ball patent odanahschool

    grinding mill ball patent; Friedrich Fischer . Friedrich Fischer 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 ...

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  • DE102012013279A1 Method for operating a stirred ball ...

    The present invention relates to a method for dry operation of an agitator ball mill with a mill housing which encloses a grinding chamber in which a rotatable agitator shaft lies horizontally between an inlet side and an outlet side and in which there are grinding media , with on the entry side through a product inlet to be ground is fed into the ...

    Author: Roland Nied, Hermann Sickel, Udo EnderleLive Chat
  • grinding mill ball patent luksusowe firany.pl

    US3549094A Ball mill Google Patents. 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.

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  • WO2007110466A1 Method for estimating the ball charge

    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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  • US1951823A Grinding mill Google Patents

    GRINDING MILL F'IG.4 . FIG. 5 . INVENT R Patented Mar. 20, 1934 UNITED STATES PATENT OFFICE 1Claim. The invention relates to mills and more especially to grinding mills and analogous appliances having hollow working receptacles, barrels or drums for enclosing the material or materials op 5 erated upon, such for example asy ball or tubel mills.

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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

    Cited by: 1Live Chat