A rotor-equipped breaker/crusher drum for coal and other material in which means are provided for rotating the drum at close to critical speed, and in which lifter shelves in the drum are adjusted for dropping material into the path of the rotor at a point where the rotor not only fragments the material, but also emphasizes the flinging of the material against the downwardly moving perforated ...

A coal crushing facility having a coal crusher with an inlet feed chute and a feeding mechanism interposed between the crusher and a storage hopper wherein a top wall of the feed mechanism discharge chute includes a hinged door which is responsive to backup of coal in the crusher inlet chute to open slightly and effect operation of a proximity switch to shut down the feed motor.

This invention relates to the breaking of high viscosity aqueous fluids in which xanthan gum was used as a thickening agent. The invention provides a breaker system comprising two oxidizers, an organic acid, and two catalysts. The invention is particularly useful in oil field operations such as placement of a gravel pack or distribution of a proppant in a fractured formation.

A longwall shearer is positioned adjacent a face conveyor for transporting material that is cut from a mining face. The longwall shearer includes a chassis, an arm pivotably coupled to the chassis, a cutting drum for engaging the mining face, and a lump breaker for engaging material on the face conveyor. The chassis includes a first end and a second end, and the chassis is movable in at least ...

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This application is a continuation-in-part of U.S. patent application Ser. No. 09/453,729 filed Dec. 2, 1999 and entitled, "Coal-Based Carbon " and copending herewith. FIELD OF THE INVENTION The present invention relates to carbon materials derived from coal and more particularly to such s that exhibit lower densities but equal ...

The Moffat Breaker, or Taylor Breaker, as it was called was built by the Delaware, Lackawanna and Western Railroad Company in 1915-16.The Moffat was the first all reinforced-concrete breaker, containing 500,000 feet of lumber for machinery bedding.In 1920, the W. Y. Moffat Coal Company acquired the Taylor Breaker.It was torn down around 1980.Taylor is a borough in Lackawanna County ...

Note the very low patent serial number – this is an early patent processed by the U. S. Patent Office. This patent was filed when Hopkin was Master Mechanic of the BMRR – before he and van Cleve and others formed their own company to contract with the BMRR. Coal Breaker No. 3368, December 5, …

Abstract: A slag breaker of a pressure-type coal gasifier having a rotary grate with a plurality of grate segments, a generator bottom and an ash separator, has an inclined breaking plate arranged to be located immediately below the grate segment and prior to the ash separator and provided with a plurality of breaking projections, and a wear sheet arranged to be located on the generator bottom ...

US2720391A US372052A US37205253A US2720391A US 2720391 A US2720391 A US 2720391A US 372052 A US372052 A US 372052A US 37205253 A US37205253 A US 37205253A US 2720391 A US2720391 A US 2720391A Authority US United States Prior art keywords breaker boring head auger shaft coal Prior art date Legal status (The legal status is an assumption and is not a legal …

United States Patent 4592516 . Abstract: A device for breaking coal and for separating predetermined size coal particles and impurities therefrom. A supply of coal containing rock, shale and other impurities is dumped in a hopper through a top opening. ... These objectives and advantages are obtained by the coal breaker and sorter construction ...

A coal breaker is a coal processing plant which breaks coal into various useful sizes. Coal breakers also remove impurities from the coal (typically slate) and deposit them into a culm dump.The coal breaker is a forerunner of the modern coal preparation plant.. Coal tipples typically were used at bituminous coal mines, where removing impurities was important but sorting by size was only a ...

The breaker plate of a coal crusher has holes therein so that coal small enough to pass through those holes does so without being acted upon by the rotor. This increases the capacity of the crusher, reduces fines, and conserves power. The plate is oriented such that windage generated by the rotor urges the smaller pieces of coal through the holes.

US143745A US143745DA US143745A US 143745 A US143745 A US 143745A US 143745D A US143745D A US 143745DA US 143745 A US143745 A US 143745A Authority US United States Prior art keywords coal cylinder pieces breakers improvement Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.

A method of operating a rotor-equipped breaker/crusher for coal and other material in which the drum is rotated at close to critical speed, and in which lifter shelves in the drum are adjusted for dropping material into the path of the rotor at a point where the rotor not only fragments the material, but also emphasizes the flinging of the material against the downwardly moving perforated wall ...

7 For a description and drawing of the first coal breaker ever patented in the United States, see U. S. Patents, Vol. 94, Patent No. 3292., n. p., n. d. The original applications for the pat ents of Battin are on file in the National Archives; the patent volumes cited are in the U. S. Patent Office, Department of Commerce, Washington, D. C.