Back to results
US 12,544,787 B2Granted
Adjustable static classifier
AssigneeCoperion Process Solutions LLC
InventorMichael Chen
Life of this patent
Estimating the term…
Abstract
A static classifier including a vessel having an inlet and an outlet and having a vessel interior area. A classifier chamber is positioned in the vessel interior area. The classifier chamber has a plurality of openings extending through a side wall of the classifier chamber and into a classifier interior area of the classifier chamber. The plurality of openings are configured for passing particles entrained in a gas from the vessel interior area into the classifier interior area. One or more flow restrictors are arranged with the classifier chamber. The flow restrictors are configured to establish an optimal flow velocity and direction of the particles entrained in the gas, through the static classifier.
Claims30
A static classifier comprising:
- a vessel having an inlet and a vessel outlet and having a vessel interior area, the vessel having a top-plate positioned on the vessel outlet and having a classifier outlet formed in the top-plate, and an outlet duct positioned on the classifier outlet and at least an outer-duct portion of the outlet duct extending outwardly from the top-plate;
- a classifier chamber positioned in the vessel interior area, the classifier chamber having a plurality of openings extending through a side wall of the classifier chamber and into a classifier interior area of the classifier chamber, the plurality of openings being configured for passing particles entrained in a gas from the vessel interior area into the classifier interior area;
- and
- at least one flow restrictor arranged with the classifier chamber;
- the at least one flow restrictor is configured to establish a flow velocity of the particles entrained in the gas, through the static classifier;
- wherein each of the plurality of openings has an axial extent;
- and
- wherein the at least one flow restrictor comprises a sleeve moveably positioned in the outer-duct portion of the of the outlet duct and a distal end of the sleeve being movably extendable into the classifier interior area and at least partially eclipses the axial extent;
- an actuator system in communication with the sleeve, wherein the actuator system is configured to axially position the sleeve relative to the plurality of openings;
- wherein the actuator system comprises a first actuator positioned on a first outer circumferential side of the outer-duct portion of the outlet duct and a second actuator positioned on a second outer circumferential side of the outer-duct portion of the outlet duct,
- wherein the first actuator and the second actuator are synchronously coupled to axially move the sleeve;
- and
- wherein the first actuator comprises a first screw jack and the second actuator comprises a second screw jack and wherein the synchronously coupling comprises:
- (i) a driver gear box coupled to the first screw jack via a first linkage;
- (ii) a driven gear box coupled to the second screw jack via a second linkage;
- and
- (iii) a third linkage coupling the driver gear box to the driven gear box.
14 more elements
A static classifier comprising:
- a vessel having an inlet and a vessel outlet and having a vessel interior area, the vessel having a top-plate positioned on the vessel outlet and having a classifier outlet formed in the top-plate, and an outlet duct positioned on the classifier outlet and at least an outer-duct portion of the outlet duct extending outwardly from the top-plate;
- the outer-duct portion comprising a lower outer-duct portion, an upper outer-duct portion and a removable outer-duct portion positioned between and removably connected to the lower outer-duct portion and the upper outer-duct portion;
- the lower outer-duct portion having a first axial length and the removable outer-duct portion having a second axial length;
- a classifier chamber positioned in the vessel interior area, the classifier chamber having a plurality of openings extending through a side wall of the classifier chamber and into a classifier interior area of the classifier chamber, the plurality of openings being configured for passing particles entrained in a gas from the vessel interior area into the classifier interior area;
- and
- at least one flow restrictor arranged with the classifier chamber;
- the at least one flow restrictor is configured to establish a flow velocity of the particles entrained in the gas, through the static classifier;
- wherein the at least one flow restrictor comprises a sleeve having an upper sleeve end, a lower sleeve end and a third axial length extending between the upper sleeve end and the lower sleeve end, the upper sleeve end being removably secured between and in fixed relation to the lower outer-duct portion and the removable outer-duct portion;
- wherein each of the plurality of openings has an axial extent extending between an upper edge of the opening and a lower edge of the opening, and the lower edge of the axial extent is located at a fourth axial length measured downward from the top plate;
- wherein the lower sleeve end extends downwardly over at least a portion of the axial extent.
7 more elements
A static classifier comprising:
- a vessel having an inlet and a vessel outlet and having a vessel interior area, the vessel having a top-plate positioned on the vessel outlet and having a classifier outlet formed in the top-plate, and an outlet duct positioned on the classifier outlet and at least an outer-duct portion of the outlet duct extending outwardly from the top-plate;
- the outer-duct portion comprising a lower outer-duct portion, an upper outer-duct portion and a removable outer-duct portion positioned between and removably connected to the lower outer-duct portion and the upper outer-duct portion;
- the lower outer-duct portion having a first axial length and the removable outer-duct portion having a second axial length;
- a classifier chamber positioned in the vessel interior area, the classifier chamber having a plurality of openings extending through a side wall of the classifier chamber and into a classifier interior area of the classifier chamber, the plurality of openings being configured for passing particles entrained in a gas from the vessel interior area into the classifier interior area;
- wherein each of the plurality of openings has an axial extent extending between an upper edge of the opening and a lower edge of the opening, and the lower edge of the axial extent is located at a fourth axial length measured downward from the top plate;
- a flow restrictor kit comprising:
- (a) a first sleeve having a first upper sleeve end, a first lower sleeve end and a first sleeve third axial length extending between the first upper sleeve end and the first lower sleeve end;
- and
- (b) a second sleeve having a second upper sleeve end, a second lower sleeve end and a second sleeve third axial length extending between the second upper sleeve end and the second lower sleeve end, the second sleeve third axial length being greater than the first sleeve third axial length;
- the first sleeve and the second sleeve being individually changeably positionable in the classifier chamber.
7 more elements
Dependencies are inferred from the claim text.