System, method, and apparatus for detecting wear in a screening arrangement

• US 8,330,610 B2
• Filed: 05/18/2010
• Issued: 12/11/2012
• Est. Priority Date: 05/18/2010
• Status: Active Grant

• Current Assignee: Polydeck Screen Corporation
• Original Assignee: Polydeck Screen Corporation
• Inventors: Freissle, Peter Helmut Franz, Weaver, Mark V., King, Patrick Fraser, Anderson, Gregory, Freissle, Manfred
• Primary Examiner(s): Blount, Eric M
• Application Number:
  US12/782,198
• Publication Number:
  US 20110285541A1
• Time in Patent Office: 938 Days
• Field of Search: 340/680, 340/664, 340/650, 209/2, 209/401, 209/370, 209/392, 324/71.1, 324/71.2
• US Class Current: 340/680
• CPC Class Codes: B07B 1/4645 Screening surfaces built up of modular elements
• CPC Class Codes: B07B 13/18 Control

Abstract

A system, method, and apparatus for detecting wear in a screening arrangement is disclosed. The system, method, and apparatus can include a sensor that is configured to provide a notification signal when a surface of a screen panel has worn to a threshold level. The threshold level can be based at least in part on the amount of wear that requires replacement of a screen panel to prevent breakthrough or contamination. The notification signal provided by the sensor can be used to identify which screen panel or region of screen panels has been worn to the threshold level so that the screen panels can be replaced in a timely manner. The sensor may be coupled to a conductor embedded in one of the screen panels that is altered when a screen panel has worn to a threshold level, triggering the sensor to provide the notification signal.

Claims

1. A system for detecting wear in a screening arrangement having a plurality of screen panels, comprising:

a monitoring device; and

a sensor, the sensor being positioned in the screening arrangement;

wherein said sensor is configured to provide a notification signal to said monitoring device when a top surface of at least one of the plurality of screen panels has worn to a threshold level, the threshold level associated with a depth of wear of the screen panel.

2. The system of claim 1, wherein said sensor comprises a communication device, said communication device configured to communicate the notification signal to said monitoring device.

3. The system of claim 1, wherein said communication device comprises an RFID device.

4. The system of claim 1, wherein said sensor comprises an RFID device.

5. The system of claim 1, wherein said system comprises a conductor located in one of the screen panels of the screening arrangement, said conductor positioned in the screen panel so that said conductor is altered when the screen panel has worn to the threshold level.

6. The system of claim 5, wherein said conductor is coupled to said sensor.

7. The system of claim 6, wherein said sensor provides the notification signal when said conductor becomes decoupled from said sensor.

8. The system of claim 5, wherein said sensor provides the notification signal when said conductor is shorted or grounded.

9. The system of claim 5, wherein said sensor provides the notification signal when said conductor is severed.

10. The system of claim 1, wherein said sensor is located in one of the plurality of screen panels of the screening arrangement.

11. The system of claim 1, wherein said sensor is located external to the plurality of screen panels of the screening arrangement.

38. The system of claim 1, wherein the threshold level is associated with a depth of wear that affects an aperture size of the screen panel.

12. A screening arrangement for use in screening materials, comprising:

a support member;

a screen panel secured to said support member, said screen panel comprising a peripheral edge portion and a plurality of ribs extending from the peripheral edge portion to define a screening surface, the plurality of ribs defining one or more apertures in the screen panel; and

a sensor mounted in said screening arrangement, said sensor configured to provide a notification signal to said monitoring device when the screening surface of the screen panel has worn to a threshold level, the threshold level associated with a depth of wear of the screen panel.

13. The screening arrangement of claim 12, wherein said screening arrangement further comprises a conductor located in said screen panel, said conductor positioned in said screen panel so that said conductor is altered when the screening surface of said screen panel has worn to a threshold level, said sensor providing a notification signal when said conductor is altered in said screen panel.

14. The screening arrangement of claim 12, wherein said sensor is located in said screen panel.

15. The screening arrangement of claim 12, wherein said sensor is mounted to said support member.

16. The screening arrangement of claim 12, wherein the screening arrangement further comprises a protective cover mounted to said support member, said sensor being located in said protective cover.

17. The screening arrangement of claim 16, wherein said screen panel is coupled to said sensor through a plug connection.

18. The screening arrangement of claim 12, wherein said screen panel is coupled to said sensor through a proximity sensor.

19. A screen panel comprising a peripheral edge portion and a plurality of ribs extending from the peripheral edge portion to define a screening surface, the plurality of ribs defining one or more apertures in the screen panel, the screen panel further comprising a sensor mounted in the screen panel, said sensor configured to provide a signal indicative of a depth of wear in said screen panel.

20. The screen panel of claim 19, wherein said sensor comprises a communication device.

21. The screen panel of claim 20, wherein said communication device comprises an RFID device.

22. The screen panel of claim 19, wherein said sensor comprises an RFID device.

23. The screen panel of claim 19, wherein said screen panel further comprises a conductor mounted in said screen panel, said sensor configured to provide a notification signal when said conductor is altered in said screen panel.

24. The screen panel of claim 23, wherein said conductor is positioned in the screen panel such that said conductor becomes altered when said screening surface of said screen panel has worn to a threshold level.

39. The screen panel of claim 19, wherein the signal indicative of depth of wear is associated with a depth of wear that affects a size of the one or more apertures in the screen panel.

25. A screen panel for use in a system for detecting wear in a screening arrangement, the screen panel comprising:

a peripheral edge portion and a top surface formed at least partially from a resilient material;

a conductor embedded in said resilient material, said conductor being positioned in said resilient material so that said conductor is altered when the top surface of said screen panel has worn to a threshold level, the threshold level associated with an amount of wear of the screen panel that affects aperture size of the screen panel;

wherein said conductor is configured to be coupled to a sensor that provides a notification signal when said conductor is altered in the screen panel.

26. The screen panel of claim 25, wherein said screen panel comprises a plug connection coupled to said conductor.

27. The screen panel of claim 25, wherein the sensor comprises an RFID device.

28. The screen panel of claim 25, wherein said conductor is positioned along a top surface of a frame embedded in the screen panel.

29. The screen panel of claim 25, wherein said conductor is positioned below the top surface of a frame embedded the screen panel.

30. The screen panel of claim 25, wherein said resilient material comprises a polymeric material.

31. A method for detecting wear in a screen panel, comprising:

associating a sensor with a screen panel;

monitoring signals from the sensor associated with the screen panel; and

receiving a notification signal from the sensor associated with the screen panel when the screening surface of the screen panel has worn to a threshold level, the threshold level associated with a depth of wear of the screen panel.

32. The method of claim 31, wherein the method further comprises providing an alert when a notification signal is received from the sensor associated with the screen panel.

33. The method of claim 32, wherein the method further comprises replacing the screen panel after receiving the notification signal from the sensor associated with the screen panel.

34. The method of claim 31, wherein said sensor comprises an RFID device.

35. The method of claim 34, wherein the method comprises:

receiving a routine RFID signal from the RFID device; and

determining that a notification signal has been received from the RFID device when the routine RFID signal from the RFID device is no longer received.

36. The method of claim 31, wherein the method comprises associating a plurality of screen panels with the sensor.

37. The method of claim 31, wherein associating a sensor with a screen panel comprises positioning a conductor in the screen panel such that the conductor becomes altered when the screening surface of the screen panel has worn to a threshold level, the sensor providing the notification signal when the conductor becomes altered in the screen panel.

40. The method of claim 31, wherein the threshold level is associated with a depth of wear that affects an aperture size of the screen panel.