Screen device for unloading silo vehicles

Patent metadata

Field	Value
Publication number	US-10926296-B2
Application number	US-201515128235-A
Country	US
Kind code	B2
Filing date	Apr 1, 2015
Priority date	Apr 1, 2014
Publication date	Feb 23, 2021
Grant date	Feb 23, 2021

Abstract

A passive food screen device ( 1 ) for flour in a delivery flow comprising: a housing ( 2 ) with a housing inlet ( 3 ) and a housing outlet ( 4 ); a closed screen insert ( 5 ) arranged substantially within the housing ( 2 ) such that a spatial area ( 6 ) is formed between the inner wall ( 7 ) of the housing ( 2 ) and the outer wall ( 8 ) of the screen insert ( 5 ) and screen elements ( 9 ) of the screen insert ( 5 ) are arranged substantially parallel to the main conveying direction (F); and a hose coupling ( 10 ) on the housing inlet ( 3 ) and/or on the housing outlet ( 4 ). The food screen device allows a high delivery capacity, and, by virtue of its narrow design, can be carried on a silo vehicle and used as a control screen when delivering flour. The food screen device ( 1 ) is designed such that the flour can be moved in an air delivery stream.

First claim

The invention claimed is:

1. A passive foodstuff screen device for flour in a conveying flow, comprising:
a housing having a housing inlet and a housing outlet;
a closed screen insert disposed so as to be substantially within the housing in such a manner that:
i. a spatial region is formed between the internal wall of the housing and the external wall of the screen insert;
ii. one or more screen elements of the screen insert is/are disposed so as to be substantially parallel with the main conveying direction;

a hose coupling on the housing inlet and/or on the housing outlet, wherein the hose coupling is configured as a firefighting coupling;
wherein the foodstuff screen device is configured in such a manner that the flour is capable of being driven in a conveying flow of air through the one or more screen elements, whereby solid particulate matter may be removed from the flow of air and flour.

2. The screen device according to in claim 1 , wherein the hose coupling is configured as a Storz coupling.

3. The screen device according to in claim 1 , wherein said screen device has a weight of below 25 kg.

4. The screen device according to in claim 1 , wherein said screen device has a construction length in the range from 5 cm to 1 m.

5. The screen device according to claim 1 , wherein the internal wall of the housing has a diameter that is in the range from 11 cm to 35 cm.

6. The screen device according to claim 1 , wherein the spatial region is configured so as to be one of substantially cylinder-barrel shaped, cone-shell shaped, or truncated cone-shell shaped.

7. The screen device according to claim 1 , wherein external installations for flow direction are disposed in the spatial region.

8. The screen device according to claim 7 , wherein external installations for flow direction are helically configured.

9. The screen device according to claim 1 , wherein at least one internal installation for flow direction is disposed within the screen insert.

10. The screen device according to claim 9 , wherein one internal installation or a plurality of internal installations is/are disposed in a substantially cone-shaped or truncated cone-shaped manner on an axle along the main conveying direction, and shell surface(s) of the internal installation(s) is/are aligned in the main conveying direction in such a manner that said shell surface(s) causes/cause deflection in the direction of the one or more the screen elements.

11. The screen device according to claim 1 , wherein the housing has a lockable cover which enables the housing to be opened in such a manner that the screen insert is retrievable from the housing.

12. The screen device according to claim 11 , wherein the lockable cover is arranged in a region of the housing inlet.

13. The screen device according to claim 11 , wherein the lockable cover is a removable cover or a flap or a pivot cover.

14. The screen device according to claim 1 , wherein the housing inlet is disposed in a tangential manner.

15. The screen device according to claim 1 , wherein the housing has at least one viewing window through which the flour flowing through the screen insert is visible.

16. A method of using a foodstuff screen device according to claim 1 as a screen device which is capable of being conjointly carried on a silo vehicle, comprising the step of pneumatically conveying flour through the screen device.

17. The foodstuff screen device according to claim 1 , wherein the foodstuff screen device is installed on a silo vehicle.

18. A method for unloading a silo vehicle, the method comprising the following steps:
establishing a fluid connection between an outlet of the silo vehicle and an inlet of a silo in such a manner that the fluid connection comprises a foodstuff screen device as claimed in claim 1 ; and
pneumatically conveying a payload from the silo vehicle through the screen device into the silo.

19. The method according to claim 18 , wherein the foodstuff screen device is retrieved from a stowage compartment of the silo vehicle and incorporated into the fluid connection.

Assignees

• Buehler Ag

Inventors

• Moosmann Jürgen

Classifications

• B07B13/16

  Feed or discharge arrangements · CPC title

• B07B7/06 Primary

  by impingement against sieves · CPC title

• B07B11/06

  Feeding or discharging arrangements · CPC title