Screening device

Patent metadata

Field	Value
Publication number	US-11826784-B2
Application number	US-202017637967-A
Country	US
Kind code	B2
Filing date	Aug 27, 2020
Priority date	Aug 27, 2019
Publication date	Nov 28, 2023
Grant date	Nov 28, 2023

Abstract

A modular screen support deck for a screening arrangement includes a first deck side having an inward facing side and an outward facing side and a second deck side having an inward facing side and an outward facing side. The first and second deck sides extend in parallel with each other to define a deck plane. A first extension structure is connected to the first deck side and extends inwardly from the first deck side. The first extension structure includes a first connection structure and a second extension structure connected to the second deck side and extending inwardly from the second deck side. The second extension structure includes a second connection structure arranged a distance from the second deck side. The support deck includes a first cross-member with a first and second ends, the first end being connected to the first connection structure and the second end being connected to the second connection structure.

First claim

The invention claimed is:

1. A modular screen support deck for a screening arrangement, the modular screen support deck comprising:
a first deck side and a second deck side each having an inward facing side and an outward facing side, the first deck side and the second deck side extend in parallel with each other defining a deck plane between the two deck sides,
a first extension structure and a second extension structure, the first extension structure being connected to the first deck side and the second extension structure being connected to the second deck side, the first extension structure extending inwardly from the first deck side and comprising a first connection structure being arranged a distance from the first deck side, the second extension structure being connected to the second deck side, extending inwardly from the second deck side, and comprising a second connection structure being arranged a distance from the second deck side, wherein the first extension structure and the second extension structure each comprise a horizontal part extending towards the opposing deck side and a vertical part connected to the horizontal part and extending perpendicular to the deck plane, the vertical part of the first extension structure comprising the first connection structure and the vertical part of the second extension structure comprising the second connection structure, wherein the connection between the horizontal part and the vertical part is configured to act as a vibration damper, and
a first cross-member with a first end and a second end, the first end of the first cross-member being connected to the first connection structure, wherein the first extension structure is configured to dampen vibrations in the connection between the first end of the first cross-member and the first connection structure, and the second end of the first cross-member being connected to the second connection structure, wherein the second extension structure is configured to dampen vibrations in the connection between the second end of the first cross-member and the second connection structure.

2. A modular screen support deck according to claim 1 , wherein an angle between the horizontal parts of the first extension structure and the second extension structure and the deck plane is in the range of 0 degrees to 15 degrees.

3. A modular screen support deck according to claim 1 , wherein the first end and the second end of the first cross-member is connected to the first connection structure and the second connection structure by welding.

4. A modular screen support deck according to claim 1 , wherein the modular screen support deck comprises at least two first cross-members.

5. A modular screen support deck according to claim 1 , wherein the modular screen support deck comprises a second cross-member with a first end and a second end, a third deck side and a fourth deck side each having an inward facing side and an outward facing side, the third deck side and the fourth deck side extends in parallel with each other perpendicular to the first deck side and the second deck side, ends of the third deck side and the fourth side being connected to the first deck side and the second deck side, and the first end of the second cross-member is connected to the third deck side and the second end the second cross-member is connected to the fourth deck side.

6. A modular screen support deck according to claim 5 , where the second cross-member is configured to accommodate at least part of the first cross-member.

7. A modular screen support deck according to claim 5 , where the modular screen support deck comprises at least three second cross-members.

8. A modular screen support deck according to claim 6 , where the modular screen support deck comprises at least three second cross-members.

9. A modular screen support deck according to claim 1 , where the distance between the first connecting structure and the first deck side is in the range of 40 mm to 150 mm, and the distance between the second connecting structure and the second deck side is in the range of 40 mm to 150 mm.

10. A modular screen support deck according to claim 5 , where the inward facing side of the third deck side and the fourth deck is folded to form a U-shape.

11. A modular screen support deck according to claim 6 , where the inward facing side of the third deck side and the fourth deck is folded to form a U-shape.

12. A modular screen support deck according to claim 7 , where the inward facing side of the third deck side and the fourth deck is folded to form a U-shape.

13. A screening arrangement for screening particulate material according to size, comprising:
a first side wall and a second side wall, each having an inward facing side and an outward facing side, and
a modular screen support deck according to claim 1 , the modular screen support deck extending between said inward facing sides of the first side wall and the second side wall.

14. The screening arrangement according to claim 13 , wherein the screening arrangement comprises a vibrating mechanism, which is configured to vibrate the screening arrangement.

15. A mobile material processing plant comprising a screening arrangement according to claim 13 .

Assignees

• Metso Outotec Finland Oy

Inventors

• Leinonen Timo

Classifications

• B07B1/4645 Primary

  Screening surfaces built up of modular elements · CPC title

• B07B1/44

  Balancing devices · CPC title

• B07B2201/02

  Fastening means for fastening screens to their frames which do not stretch or sag the screening surfaces · CPC title

• B07B1/4618

  Manufacturing of screening surfaces · CPC title