Grinding media charging device
AssigneesArmco Inc., The Holming Company
InventorsRobert Holming, Robert S. Nelson, Thomas R. Daley
Life of this patent
Estimating the term…
Abstract
An apparatus for uniformly feeding grinding balls to a grinding mill. The apparatus includes a ball storage hopper, a regulator and an inclined chute for conveying balls from the hopper to the regulator. The chute includes a panel for controlling the depth of the balls. The regulator includes a discharge drum having a plurality of compartments adapted to receive the balls, an electric motor for rotating the drum, and a means for retaining the balls in the drum. The drum is rotated at a predetermined speed and feeds the balls into a mill at a uniform rate which can be controlled to approximately match the attrition rate of the balls in the mill.
Claims15
An apparatus for feeding grinding balls into a ball mill comprising:
- a ball storage hopper for new grinding balls,
- a regulator,
- a chute for conveying said balls to said regulator,
- said chute having first and second ends,
- said first end including a baffle for controlling the depth of said balls on said chute,
- said regulator including a discharge drum, means for continuously rotating said drum and a means for retaining said balls in said drum,
- said drum being disposed adjacent said second end and including a plurality of compartments adapted to receive said balls,
- said retaining means being disposed adjacent to a portion of said drum for retaining said balls in one of said compartments,
- whereby said drum is rotated at a predetermined speed to uniformly feed said balls into said mill at a rate that can correspond to the ball attrition rate of said mill.
An apparatus for feeding grinding balls into a ball mill comprising:
- a ball storage hopper for new grinding balls,
- a regulator,
- an inclined chute for conveying said balls to said regulator,
- said chute having first and second ends,
- said first end including a baffle for controlling the depth of said balls on said chute,
- said regulator including a discharge drum, a means for continuously rotating said drum and a means for retaining said balls in said drum,
- said drum disposed adjacent said second end and including a plurality of evenly spaced compartments adapted to receive said balls,
- said compartments formed by radially extending blades and a force deflection means,
- said retaining means including a curved plate which is biased into abutment with a lower portion of said drum for retaining said balls in one of said compartments,
- whereby said drum is rotated at a predetermined speed to uniformly feed said balls into said mill at a rate that can correspond to the ball attrition rate of said mill.
Dependencies are inferred from the claim text.