Device and conveyor belt for making pellets

• US 6,408,639 B1
• Filed: 01/29/2001
• Issued: 06/25/2002
• Est. Priority Date: 07/29/1998
• Status: Expired due to Term

• Current Assignee: Linde AG (Linde Plc)
• Original Assignee: AGA AB (Linde Plc)
• Inventors: Jagaeus, Ulf
• Primary Examiner(s): DOERRLER, WILLIAM CHARLES
• Application Number:
  US09/770,223
• Publication Number:
  US 20020092319A1
• Time in Patent Office: 512 Days
• Field of Search: 623/74, 623/80, 623/78, 62/63, 62/72, 623/45
• US Class Current: 62/345
• CPC Class Codes: B65G 17/067 the load carrying surface being formed by plates or platforms attached to more than one traction element
• CPC Class Codes: B65G 17/34 having flat surfaces, e.g. platforms, grids, forks
• CPC Class Codes: B65G 2201/02 Articles
• CPC Class Codes: B65G 2201/04 Bulk
• CPC Class Codes: F25D 25/04 by conveyors in general B65G

Abstract

A device for making pellets of a material that can be made to solidify by changing its temperature having an endless belt (6) on which the material is placed at a feeding location and is conveyed along a processing path (7) to a guide roller (4) at a discharging location, and a member (2) for changing the temperature of the material on the belt (6) along the processing path (7). The endless belt (6) having a plurality of lamellae (9) transverse to the longitudinal direction of the belt, which are articulately juxtaposed and have at least one duct (11) which extends in the longitudinal direction of the belt without interruption between adjacent lamella and has, between the longitudinal edges of each lamella a ridge (13) transverse to the longitudinal direction of the belt of a height smaller than the depth of the duct (11).

Claims

1. A device for making pellets of a material that can be made to solidify by changing its temperature, the device comprising an endless belt (6) on which the material is placed at a feeding location and is conveyed along a processing path (7) to a guide roller (4) at a discharging location, and means (2) for changing the temperature of the material on the belt (6) along the processing path (7), characterized in that the endless belt (6) comprises a plurality of lamellae (9) having a longitudinal length transverse to a longitudinal direction of the belt, which are articulately juxtaposed along the longitudinal length and have at least one duct (11) which extends in length in the longitudinal direction of the belt uninterrupted between adjacent lamella and has, between longitudinal edges of each lamella a ridge (13) transverse to the longitudinal direction of the belt of a height smaller than the depth of the duct (11).

2. A device as claimed in claim 1, characterised in that the endless belt (6) has a plurality of separate ducts (11).

3. A device as claimed in claim 1 or 2, characterised in that the side surfaces of each duct (11) are inclined outwards from the duct.

4. A device as claimed in claim 1, characterized in that each ridge (13) has a width that decreases towards its top.

5. A device as claimed in claim 1, characterized in that the bottom of the duct (11) is cup-shaped between each pair of adjacent ridges (13).

6. A device as claimed in claim 1, characterized in that the bottom of the duct (11) is substantially flat between each pair of adjacent ridges (13).

7. A device as claimed in claim 1, characterized in that the bottom of the duct (11) exhibits one or more grooves (14) having a width that gradually decreases downwards.

8. A device as claimed in claim 1, characterized by a filling trough (15) which extends across the width of the belt (6) and whose lower edges extend in a plane above the transverse ridges (13).

9. A device as claimed in claim 8, characterised in that the filling trough (15) has two compartments (16, 17), which are successively arranged in the longitudinal direction of the belt (6).

10. A conveyor belt for making pellets of a material that can be made to solidify by changing its temperature, characterized in that a plurality of lamellae (9) having a longitudinal length transverse to the longitudinal direction of the belt, which are articulately juxtaposed along the longitudinal length and have at least one duct (11) which extends in length in the longitudinal direction of the belt uninterrupted between adjacent lamella of the plurality of lamellae (9) and has, between the longitudinal edges of each lamella a ridge (13) transverse to the longitudinal direction of the belt of a height smaller than the depth of the duct (11).