Rotary mill
AssigneeAaron Engineered Process Equipment, Inc.
InventorJeffrey R. Hoffmann
Life of this patent
Estimating the term…
Abstract
A rotary milling system includes a rotatable cylinder, a discharge grate, a movable flap valve into and out of engagement with the grate, a discharge housing surrounding the grate, and a conveying pipe extending from the discharge housing. The cylinder can include grinding media for abrading a product when the cylinder is rotated. The product can be in either a dry form or within a liquid medium. Upon conclusion of the milling, the flap valve can be opened to allow the milled product to pass through the grate and into the discharge housing. A negative pressure can be applied to draw the milled product through the conveying pipe into a separator tank.
Claims17
A rotary milling system comprising:
- a rotatable cylinder defining a cavity and a central longitudinal axis;
- a discharge grate provided on a sidewall of the cylinder and defining an opening to allow milled product to pass therethrough;
- a discharge housing surrounding the discharge grate and defining a cavity therein;
- a flap disposed within the discharge housing and moveable between a closed position covering the opening of the discharge grate and an open position away from the opening;
- a conveying pipe in fluid communication with the housing;
- and
- a negative pressure producing vacuum member operatively associated with the conveying pipe to create a negative pressure within the conveying pipe.
A method for discharging milled product from a rotary mill comprising:
- rotating a cylinder in which a plurality of grinding media and milled product are disposed;
- moving a flap away from a discharge grate provided on the cylinder, wherein the flap and discharge grate are surrounded by a discharge housing;
- discharging the milled product through the discharge grate into the discharge housing;
- and
- applying a negative pressure to a conveying pipe that is in fluid communication with the discharge housing to convey the product out of the housing and through the conveying pipe.
Dependencies are inferred from the claim text.