Mill discharge grate having dynamic variable sieve openings
AssigneeFLSmidth A/S
InventorMauricio Salinas Hudson
Life of this patent
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Abstract
A discharge grate (200) for an internal discharge end (3) of a mill (1) may be characterized in that it has at least one dynamic variable sieve opening (206) defined between two adjacent floating screen bars (202). The floating screen bars (202) may be configured to a least temporarily move with respect to one another and/or with respect to a holding frame (201) receiving the floating screen bars (202). Temporary expansion of the at least one dynamic variable sieve opening (206) may permit undersized media to pass to the discharge chute (8) and reduce or eliminate pegging.
Claims15
A discharge grate (200) for an internal discharge end (3) of a mill (1), the discharge grate (200) comprising:
- open surface area for passing pulverized material (5) from an inside of the mill (1) to a discharge chute (8), and
- closed area for discouraging passage of grinding media (4) from the mill (1) and maintaining the grinding media (4) and unpulverized material within the mill (1),
- wherein the discharge grate (200) further comprises:
- at least one dynamic variable sieve opening (206) defined between two adjacent floating screen bars (202), and
- a holding frame (201) for receiving the floating screen bars (202);
- the floating screen bars (202) being configured to a least temporarily move with respect to one another and/or with respect to the holding frame (201).
Dependencies are inferred from the claim text.