A turret includes a generally frusto-conical shaped body and a plurality of static straightening vanes arranged interior to the body, the vanes dividing the body into a plurality of substantially equal sections. The vanes are configured to straighten a swirling flow of solid particles as they enter the body, and to divide the swirling flow into a plurality of straightened flows that are communicated to a plurality of coal outlet pipes.

A turret includes a generally frusto-conical shaped body and a plurality of static straightening vanes arranged interior to the body, the vanes dividing the body into a plurality of substantially equal sections. The vanes are configured to straighten a swirling flow of solid particles as they enter the body, and to divide the swirling flow into a plurality of straightened flows that are communicated to a plurality of coal outlet pipes.

There is provided a control device of a coal pulverizer which enables estimation of a coal output with a precision suited for a purpose. In a control device of a coal pulverizer which pulverizes coal by the coal pulverizer and estimates coal output by which the pulverized coal is output to a boiler, the control device includes a main operation circuit which calculates a command signal associated with a coal feed rate on the basis of detection data from a boiler or a power generator connected to the boiler, and an additional control unit which calculates the deviation between a standard coal output pattern preset in the coal pulverizer, and a current coal output pattern, and adds a calculation result by the additional control unit to the main operation circuit as a correction signal.

There is provided a control device of a coal pulverizer which enables estimation of a coal output with a precision suited for a purpose. In a control device of a coal pulverizer which pulverizes coal by the coal pulverizer and estimates coal output by which the pulverized coal is output to a boiler, the control device includes a main operation circuit which calculates a command signal associated with a coal feed rate on the basis of detection data from a boiler or a power generator connected to the boiler, and an additional control unit which calculates the deviation between a standard coal output pattern preset in the coal pulverizer, and a current coal output pattern, and adds a calculation result by the additional control unit to the main operation circuit as a correction signal.

A flexible vertical grinder, having a main shaft mounting frame (4) on a grinder frame (1); a main shaft (3) is mounted on the main shaft mounting frame; a stelliform bracket (9) is mounted on the main shaft; a hammer wheel grinder and a material-sorting balance wheel device are mounted on the stelliform bracket; the material-sorting balance wheel (4) and the hammer wheel (17) are on the same horizontal plane. The vertical grinder can apply different grinding forces according to different specific surface areas of the to-be-ground material, and can grind materials of different grades properly but not excessively, thus greatly improving crushing efficiency, having good overall rigidity and stable operation, and facilitating maintenance.

A crushing mill with a single roller inside a driven cylindrical shell inner surface, both with horizontal and parallel but offset axes is disclosed. In some embodiments, the roller has protrusions such that as the roller and shell rotate rock or other material may be crushed between the shell and the roller, respectively. In some embodiments, the shell and the roller each have surface protrusions such that rock or other materials may be crushed between the shell and the roller as they rotate. In some embodiments the shell and the roller operate at differential speeds with respect to each other to induce shear forces on the material to be crushed.

A method embodiment involves preparing single metal or mixed transition metal chalcogenide using exfoliation of two or more different bulk transition metal dichalcogenides in a manner to form an intermediate hetero-layered transition metal chalcogenide structure, which can be treated to provide a single-phase transition metal chalcogenide.

A mill, in particular a pendulum mill or roller mill, having a classifier, wherein the mill has a mill housing with an interior in which there is situated a milling space B1 in which a milling device having at least one milling tool is arranged. The classifier is arranged above the milling device in a classifying space B3. At least one drop device is provided which connects the classifying space B3 to the milling space B1. Arranged below the classifier is at least one distribution plate which has at least one drop opening on which the at least one drop device is arranged.

A vertical roller mill with segmented bull ring and clamping system includes a roller mill base having an internal taper configured for holding a bull ring in grinding position, a cowring dimensioned to be fitted into the internal taper of the base and a clamp ring secured atop the cowring. Each of these has a plurality of apertures spaced and configured so that when fastened together with fasteners, they form a radial landing platform for a plurality of segmented bull ring bricks. The system also includes a plurality of segmented bull ring bricks which, when clamped to the radial landing platform and taken as a whole, form a solid, but readily separable, segmented bull ring suitable for use in a roller mill. The system further includes wedge blocks and fasteners for individually removably clamping the segmented bull ring bricks to the radial landing platform.

A turret includes a generally frusto-conical shaped body and a plurality of static straightening vanes arranged interior to the body, the vanes dividing the body into a plurality of substantially equal sections. The vanes are configured to straighten a swirling flow of solid particles as they enter the body, and to divide the swirling flow into a plurality of straightened flows that are communicated to a plurality of coal outlet pipes.