SYSTEM FOR MONITORING THE STATE OF A SCREEN BASKET

Abstract

A system for monitoring the state of a screen basket of a screen for treating a fibrous suspension includes a cable-free identification unit assigned to the screen basket and disposed in a housing of the screen. An external, in particular mobile, reading unit is provided for the non-contact reading of technical data relating to the screen basket from the identification unit and for producing a connection to a further external database containing data relating to the screen.

Claims

1. A system for monitoring the state of a screen basket of a screen for treating a fibrous suspension, the system comprising: a cable-free identification unit assigned to the screen basket and disposed in a housing of the screen; and an external reading unit for non-contact reading of technical data relating to the screen basket from said identification unit and for producing a connection to a further external database containing data relating to the screen.

2. The system according to claim 1, wherein said external reading unit is a mobile reading unit.

3. The system according to claim 1, wherein said reading unit includes a display for reproducing further data retrieved from the external database and relating to the screen.

4. The system according to claim 1, wherein said identification unit includes at least one RFID chip.

5. The system according to claim 1, wherein said identification unit includes at least one RFID chip assigned to the screen basket of the screen.

6. The system according to claim 1, wherein said identification unit includes an RFID chip assigned to the screen basket of the screen and an RFID chip assigned to the housing of the screen, said RFID chip assigned to the screen basket is configured to be coupled by a software coupling to said RFID chip assigned to the housing, and said RFID chip assigned to the housing is configured to be read by said reading unit.

7. The system according to claim 5, wherein said RFID chip assigned to the screen basket of the screen is readable directly by said reading unit.

8. The system according to claim 5, wherein said RFID chip assigned to the screen basket of the screen is disposed in a region of an opening of the screen to be closed by a cover.

9. The system according to claim 5, wherein said RFID chip assigned to the screen basket of the screen is disposed on or in an end ring of the screen basket.

10. The system according to claim 5, wherein said RFID chip assigned to the screen basket of the screen is disposed on or in an end ring of the screen basket adjacent an opening of the screen to be closed by a cover.

11. The system according to claim 10, wherein said RFID chip assigned to the screen basket of the screen is disposed on an upper side of the end ring facing the opening of the screen.

12. The system according to claim 10, wherein said RFID chip assigned to the screen basket of the screen is disposed on a radial inner side of the end ring.

13. The system according to claim 10, wherein said RFID chip assigned to the screen basket of the screen is countersunk in the end ring.

14. The system according to claim 13, wherein said RFID chip countersunk in the end ring of the screen basket is provided with a covering or encapsulation.

15. The system according to claim 14, wherein the covering or encapsulation is formed of plastic or Teflon.

16. The system according to claim 1, wherein the data relating to the screen is stored together with the technical data relating to the screen basket in the external database.

17. The system according to claim 1, wherein the data relating to the screen to be retrieved from the external database by said reading unit includes at least one of production data of the screen basket, service life data of the screen basket or operating data of the screen.

18. The system according to claim 1, which further comprises a data-processing device for determining a level of wear of the screen basket and therefore a next change date for the screen basket, based on at least one of a service life of previous screen baskets, an entire throughput previously treated by the screen basket, a rotational speed of the screen basket or an energy balance between an end ring and outlets of the screen.

Description

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING

[0030] FIG. 1 is a purely diagrammatic, perspective view of an exemplary embodiment of a system according to the invention for monitoring the state of a screen basket of a screen for treating a fibrous suspension; and

[0031] FIG. 2 is a longitudinal-sectional view of the system.

DETAILED DESCRIPTION OF THE INVENTION

[0032] Referring now to the figures of the drawings in detail and first, particularly, to FIG. 1 thereof, there is seen system 10 for monitoring the state of a screen basket 12 of a screen for treating a fibrous suspension.

[0033] According to FIG. 1, the system 10 includes a cable-free identification unit 14 assigned to the screen basket 12 disposed in a housing 24 of the screen shown in FIG. 2, and an external, in particular mobile, reading unit 16 for the non-contact reading of technical data 18 relating to the screen basket 12 from the identification unit 14 and for producing a connection to an external database 20 containing further data relating to the screen.

[0034] The reading unit 16 can include a display 17 for reproducing further data relating to the screen and being retrieved from the external database.

[0035] The identification unit 14 can include at least one RFID chip. In this case, it includes at least one RFID chip assigned to the screen basket 12 of the screen.

[0036] According to an exemplary embodiment of the system according to the invention, the identification unit 14 can include both an RFID chip assigned to the screen basket 12 of the screen and an RFID chip assigned to the housing 24 of the screen, wherein the RFID chip assigned to the screen basket 12 can be coupled via software coupling to the RFID chip assigned to the housing 24, and the RFID chip assigned to the housing 24 can be read via the reading unit 16.

[0037] According to an alternative exemplary embodiment of the system 10 according to the invention, the RFID chip assigned to the screen basket 12 of the screen can also be readable directly via the reading unit 16.

[0038] In particular in the case in which the RFID chip assigned to the screen basket 12 of the screen is readable directly via the reading unit 16, the RFID chip assigned to the screen basket 12 of the screen is expediently disposed in the region of the opening of the screen that can be closed via a cover.

[0039] The RFID chip assigned to the screen basket 12 of the screen can in particular be disposed on or in an end ring 22 of the screen basket 12 that is adjacent the opening of the screen that can be closed by a cover. In the present case, the RFID chip assigned to the screen basket 12 of the screen is accordingly disposed on or in the upper end ring 22 of the screen basket 12.

[0040] The RFID chip assigned to the screen basket 12 of the screen can be disposed, for example, on the upper side of the end ring 22, facing the opening of the screen, or else on the radial inner side of the end ring 22.

[0041] However, also conceivable, for example, is an embodiment in which the RFID chip assigned to the screen basket 12 of the screen is accommodated so as to be countersunk in the end ring 22. The RFID chip accommodated so as to be countersunk in the end ring 22 of the screen basket 12 can be provided with a covering formed in particular of plastic and preferably of Teflon. By using such a covering, the fact that the screen basket 12 is generally reconditioned, i.e. chromium-plated and electro-polished, is taken into account.

[0042] The further data relating to the screen can be stored together with the technical data relating to the screen basket 12 in the external database 20. Through the use of the technical data 18 read from the identification unit 14 of a respective screen basket 12, the relevant further data contained in the external database 20 can thus be assigned to the screen basket 12.

[0043] The further data relating to the screen that can be retrieved from the external database 20 via the reading unit 16 can in particular include production data of the screen basket 12, service life data of the screen basket 12, operating data of the screen and/or the like. The production data of the screen basket 12 includes, for example, data relating to the layout or shape, the material, the size or the like of the screen basket 12. The service life data of the screen basket 12 can include, for example, data relating to the reconditioning of the screen basket 12, storage times and so on. The operating data of the screen includes, for example, data relating to the running time, the flow/pressure at the end ring/outlet of the screen, data relating to the rotational speed of the screen basket 12 and/or the like. The relevant information can in particular be supplied by the machine control system of the screen.

[0044] In addition, the system 10 according to the invention, for example, can include a data-processing device integrated in the reading device 16 and/or in the external database 20, in order to determine the level of wear of the screen basket 12 and therefore the next change date for the screen basket 12 on the basis of the service life of previous screen baskets, the entire throughput previously treated by the screen basket 12, the rotational speed of the screen basket 12, the energy balance between the end ring and the outlets of the screen and/or the like.

LIST OF DESIGNATIONS

[0045] 10 System [0046] 12 Screen basket [0047] 14 Identification unit [0048] 16 Reading unit [0049] 17 Display [0050] 18 Technical data [0051] 20 External database [0052] 22 End ring [0053] 24 Housing