Method for cleaning a conveyor belt in a conveyor belt system

Patent metadata

Field	Value
Publication number	US-10155630-B2
Application number	US-201514725439-A
Country	US
Kind code	B2
Filing date	May 29, 2015
Priority date	May 29, 2015
Publication date	Dec 18, 2018
Grant date	Dec 18, 2018

Abstract

A conveyor belt system comprises a main frame element, a first conveyor belt attached to the main frame element to transport the food product in a first direction, and a second conveyor belt attached to the main frame element to transport the food product in a second direction. The second conveyor belt is below the first conveyor belt, and a chute element is on a shaft that is substantially horizontal and perpendicular relative to the first direction and the second direction The chute element is below the first conveyor belt and above the second conveyor belt, at an outer end position of the first conveyor belt in the first direction. The chute is rotatable around the shaft between a first position, in which the first conveyor belt is in communication with the second conveyor belt via the chute, and a second position, in which such communication is prevented.

First claim

The invention claimed is:

1. A method of cleaning a conveyor belt in a conveyor belt system, said conveyor belt system comprising:
a main frame element,
a first conveyor belt attached to said main frame element and adapted to transport a food product in a first direction,
a second conveyor belt attached to said main frame element and adapted to transport said food product in a second direction, said second conveyor belt being arranged below said first conveyor belt,
a chute element arranged on a shaft that is substantially horizontal and perpendicular in relation to said first direction and said second direction, said chute element being arranged below said first conveyor belt and above said second conveyor belt, at an outer end position of said first conveyor belt in said first direction, and
at least one sealing element,
wherein said method comprises:
rotating said chute element around said shaft from a first position, in which said first conveyor belt is in communication with said second conveyor belt via said chute element, to a second position, in which communication between said first conveyor belt and said second conveyor belt is prevented,
sealing said second conveyor belt from said first conveyor belt by the at least one sealing element,
cleaning said first conveyor belt using a liquid cleaning product while the at least one sealing element seals the second conveyor belt from the first conveyor belt, and
directing the liquid cleaning product and remaining food product on the first conveyor belt vertically downward to a drain using the rotated chute element that is sealing the second conveyor belt from the first conveyor belt so that the liquid cleaning product and the remaining food product are prevented from reaching the second conveyor belt, the drain being spaced apart from the first conveyor belt in the first direction.

2. The method according to claim 1 , wherein the cleaning of said first conveyor belt is performed simultaneously as said food product is transported in said second direction by said second conveyor belt.

3. The method according to claim 1 , wherein the sealing of said second conveyor belt from said first conveyor belt by the at least one sealing element is performed by rotating said chute element around said shaft from said first position to said second position.

4. The method according to claim 1 , further comprising:
supplying the food product on the first conveyor belt and conveying the food products in the first direction while the chute element is in the first position before the rotating of the chute element, and
halting the supplying of the food product on the first conveyor belt after the rotating of the chute element.

5. The method according to claim 1 , wherein the first direction is opposite to the second direction.

6. A method of cleaning a conveyor belt in a conveyor belt system, said conveyor belt system comprising:
a main frame element,
a first conveyor belt attached to said main frame element and adapted to transport a food product in a first direction,
a second conveyor belt attached to said main frame element and adapted to transport said food product in a second direction, said second conveyor belt being arranged below said first conveyor belt,
a chute element arranged on a shaft that is substantially horizontal and perpendicular in relation to said first direction and said second direction, said chute element being arranged below said first conveyor belt and above said second conveyor belt, at an outer end position of said first conveyor belt in said first direction, and
at least one sealing element,
wherein said method comprises:
rotating said chute element around said shaft from a first position, in which said first conveyor belt is in communication with said second conveyor belt via said chute element, to a second position, in which communication between said first conveyor belt and said second conveyor belt is prevented,
sealing said second conveyor belt from said first conveyor belt by the at least one sealing element, and
cleaning said second conveyor belt using a liquid cleaning product, and
directing remaining food product on the first conveyor belt vertically downward to a drain using the rotated chute element that is sealing the second conveyor belt from the first conveyor belt so that the remaining food product is prevented from reaching the second conveyor belt, the drain being spaced apart from the first conveyor belt in the first direction.

7. The method according to claim 6 , wherein the cleaning of said second conveyor belt is performed simultaneously as said food product is transported in said first direction by said first conveyor belt.

8. The method according to claim 6 , wherein the sealing said second conveyor belt from said first conveyor belt by said the at least one sealing element is performed by rotating said chute element around said shaft from said first position to said second position.

9. The method according to claim 6 , further comprising:
supplying the food product on the first conveyor belt and conveying the food products in the first direction while the chute element is in the first position before the rotating of the chute element, and
halting the supplying of the food product on the first conveyor belt after the rotating of the chute element.

10. The method according to claim 6 , wherein the first direction is opposite to the second direction.

Assignees

• Tetra Laval Holdings & Finance

Inventors

• Olson Michael
• Keim Nathan
• Johnson Kyle

Classifications

• B65G2201/0202

  Agricultural and processed food products · CPC title

• B65G11/126

  for bulk · CPC title

• B08B3/041

  Cleaning travelling work · CPC title

• B65G11/088

  for bulk · CPC title

• B65G47/52

  Devices for transferring articles or materials between conveyors i.e. discharging or feeding devices (loading or unloading by means not incorporated in, or not operatively associated with, conveyors B65G65/00; transfer of workpieces during metal rolling B21B41/00) · CPC title