Method for fitting or retrofitting a sinter cooler

Patent metadata

Field	Value
Publication number	US-11549754-B2
Application number	US-201917299170-A
Country	US
Kind code	B2
Filing date	Dec 6, 2019
Priority date	Dec 11, 2018
Publication date	Jan 10, 2023
Grant date	Jan 10, 2023

Abstract

A method for fitting or retrofitting a sinter cooler, which sinter cooler has a cooler grate chain with an endless chain of cooler cars, the method including, installing a lamella grate for holding sinter material and allowing air flow through the grate so that a support structure is connected to the cooler car and a plurality of lamellae are supported by and individually movable with respect to the support structure, and are disposed to allow air flow between neighbouring lamellae, where the support structure has at least one support element disposed underneath the plurality of lamellae to support the plurality of lamellae, and at least one downholder that is adapted to limit an upward motion of at least one lamella installed such that at least a portion of the downholder is disposed above the at least one lamella.

First claim

The invention claimed is:

1. A method for fitting a sinter cooler, which sinter cooler comprises a cooler grate chain with an endless chain of cooler cars, each cooler car having a front edge and a rear edge, the method comprising:
providing a plurality of lamellae, each having a lamellae profile at an underside;
providing a plurality of support elements, each having an upper contour that at least partially corresponds to the lamellae profile;
connecting the plurality of support elements to a chassis of a cooler car;
disposing the plurality of lamellae on top of the plurality of support elements opposite from the chassis such that the lamellae profiles of the plurality of lamellae are aligned with the respective upper contours of the plurality of support elements and the plurality of lamellae are arranged generally perpendicular to a direction of travel of the cooler car;
arranging the plurality of lamellae on the plurality of support structures so as to be individually movable with respect to the support structures during operation of the sinter cooler; and
disposing a downholder above the plurality of lamella to limit an upward motion of the plurality of lamellae;
wherein the plurality of lamellae form a lamella grate for holding sinter material and allowing air flow through the lamella grate.

2. The method according to claim 1 , wherein installing the lamella grate comprises at least partially connecting the support structure to the cooler car and afterwards installing at least some lamellae on the support structure.

3. The method according to claim 1 , wherein at least one lamella having a profile with a concave portion and an overlap portion is installed so that the concave portion is upward concave and the overlap portion overlaps the concave portion of a neighbouring lamella from above.

4. The method according to claim 1 , wherein a plurality of lamellae are installed as a lamella group so that the lamellae are disposed successively along a travelling direction (T) of the cooler car.

5. The method according to claim 4 , wherein all lamellae of at least one lamella group are installed to be parallel to each other and to one edge ( 2 . 1 , 2 . 2 ) of the cooler car ( 2 ).

6. The method according to claim 4 , wherein at least two lamella groups are installed to be offset to each other perpendicular to the travelling direction (T), wherein a downholder (is installed between two neighbouring lamella groups.

7. The method according to claim 4 , wherein at least one lamella group is installed so that the lamellae at the front edge of the cooler car and the rear edge of the cooler car are parallel to the respective edge.

8. The method according to claim 1 , wherein at least one straight downholder is installed.

9. The method according to claim 1 , wherein at least one arcuate downholder is installed.

10. The method according to claim 1 , wherein the sinter cooler is a circular cooler, wherein each cooler car has a front edge slanted with respect to a rear edge.

11. A method according to claim 1 , wherein the sinter cooler is a linear cooler.

12. A method for retrofitting a sinter cooler, which sinter cooler comprises a cooler grate chain with an endless chain of cooler cars, each cooler car having a front edge, a rear edge, and a rigid grate for holding sinter material and allowing air flow through the rigid grate, the method comprising:
removing the rigid grate;
providing a plurality of lamellae, each having a lamellae profile at an underside;
providing a plurality of support elements, each having an upper contour that at least partially corresponds to the lamellae profile;
connecting the plurality of support elements to a chassis of a cooler car;
disposing the plurality of lamellae on top of the plurality of support elements opposite from the chassis such that the lamellae profiles of the plurality of lamellae are aligned with the respective upper contours of the plurality of support elements and the plurality of lamellae are arranged generally perpendicular to a direction of travel of the cooler car;
arranging the plurality of lamellae on the plurality of support structures so as to be individually movable with respect to the support structures during operation of the sinter cooler; and
disposing a downholder above the plurality of lamella to limit an upward motion of the plurality of lamellae; and
wherein the plurality of lamellae form a lamella grate for said holding sinter material and said allowing air flow through the lamella grate.

13. The method according to claim 12 , wherein the cooler car comprises at least one collecting pan disposed beneath the rigid grate to collect material falling through the rigid grate, wherein the method comprises removing the at least one collecting pan.

14. The method according to claim 12 , wherein installing the lamella grate comprises at least partially connecting the support structure to the cooler car and afterwards installing at least some lamellae on the support structure.

15. The method according to claim 12 , wherein at least one lamella having a profile with a concave portion and an overlap portion is installed so that the concave portion is upward concave and the overlap portion overlaps the concave portion of a neighbouring lamella from above.

16. The method according to claim 12 , wherein a plurality of lamellae are installed as a lamella group so that the lamellae are disposed successively along a travelling direction of the cooler car.

17. The method according to claim 16 , wherein all lamellae of at least one lamella group are installed to be parallel to each other and to one edge of the cooler car.

18. The method according to claim 16 , wherein at least two lamella groups are installed to be offset to each other perpendicular to the travelling direction, wherein a downholder is installed between two neighbouring lamella groups.

19. The method according to claim 16 , wherein at least one lamella group is installed so that the lamellae at the front edge of the cooler car and the rear edge of the cooler car are parallel to the respective edge.

20. The method according to claim 12 , wherein at least one straight downholder is installed.

21. The method according to claim 12 , wherein at least one arcuate downholder is installed.

22. The method according to claim 12 , wherein the sinter cooler is a circular cooler, wherein each cooler car has a front edge slanted with respect to a rear edge.

23. The method according to claim 12 , wherein the sinter cooler is a linear cooler.

Assignees

• Wurth Paul Sa
• Paul Wurth Deutschland Gmbh

Inventors

• Schmidt Eugen
• Schulakow-Klass Andrej

Classifications

• C22B1/26

  Cooling of roasted, sintered, or agglomerated ores · CPC title

• F27D15/022 Primary

  grate plates · CPC title

• F27D2015/024

  Multiple grates · CPC title

• F27D15/0266

  on an endless belt · CPC title

• F27D2015/026

  Means to discharge the fines · CPC title