Apparatus for separating recyclable waste

• US 5,341,937 A
• Filed: 12/16/1992
• Issued: 08/30/1994
• Est. Priority Date: 12/16/1992
• Status: Expired due to Term

• Current Assignee: Machinefabriek Collegraaf Appingedam B.V.
• Original Assignee: Machinefabriek Collegraaf Appingedam B.V.
• Inventors: Vos, Dirk J.
• Primary Examiner(s): Dayoan, D. Glenn
• Application Number:
  US07/991,439
• Time in Patent Office: 622 Days
• Field of Search: 209/12, 209/38, 209/44.2, 209/31-35, 209/629, 209/631, 209/632, 209/636, 209/638, 209/644, 209/657, 209/658, 209/665, 209/674, 209/218, 209/226, 209/308, 209/257 , 209/393, 209/930-932
• US Class Current: 209/38
• CPC Class Codes: B03B 9/061 the refuse being industrial
• CPC Class Codes: B03C 1/22 with non-movable magnets
• CPC Class Codes: B03C 1/23 with material carried by oscillating fields; with material carried by travelling fields, e.g. generated by stationary magnetic coils; Eddy-current separators, e.g. sliding ramp
• CPC Class Codes: B03C 1/30 Combinations with other devices, not otherwise provided for
• CPC Class Codes: B07B 1/10 Screens in the form of endless moving bands
• CPC Class Codes: B07B 4/08 while the mixtures are supported by sieves, screens, or like mechanical elements
• CPC Class Codes: B07B 9/00 Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
• CPC Class Codes: Y02W 30/52 Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
• CPC Class Codes: Y10S 209/93 Municipal solid waste sorting

Abstract

An apparatus for separating recyclable waste which has a conveyor belt transport track, collecting belt under a section of the transport track, and belt guides positioned along a section of the transport track. The conveyor belt is provided with openings and mutually contacting surfaces of the conveyor belt and the belt guides are profiled such that movement of the conveyor belt along the transport track causes a portion of the belt passing the guides to shake in a direction substantially transverse to the transport track.

Claims

1. An apparatus for separating recyclable waste comprising a conveyer belt transport track along which a conveyer belt extends, the conveyer belt transport track including a first and a second section, collecting means under the first section of the conveyer belt transport track, belt guides positioned along the first section of the conveyer belt transport track, the conveyer belt being provided with openings and at least one of mutually contacting surfaces of the conveyer belt and the belt guides being profiled such that movement of the conveyer belt along the conveyer belt transport track causes a portion of the belt passing the guides to shake in a direction substantially transverse to the conveyer belt transport track, and magnetic separating means above the second section of the conveyer belt transport track.

2. The apparatus according to claim 1 wherein the first and the second section overlap each other.

3. The apparatus according to claim 1, wherein the transport track is oriented substantially horizontally.

4. The apparatus according to claim 1 comprising an air stream separator positioned along a further section of the transport track formed by said conveyor belt.

5. The apparatus according to claim 4 wherein the air stream separator comprises a lateral air outlet positioned above the transport track and directed across the transport track and a lower air outlet below said further section of the transport track and directed upward through a zone of the conveyor belt adjacent the side of the transport track remote from the lateral air outlet.

6. The apparatus according to claim 1 wherein the collecting means comprise a collecting surface substantially parallel to the section of the transport track and the conveyor belt comprises at least one sweeping means which extend to the collecting surface when in a position above the collecting surface.

7. The apparatus according to claim 6 wherein the sweeping means is a brush.

8. The apparatus according to claim 1 wherein the conveyor belt comprises transverse rods mutually spaced along the belt.

9. The apparatus according to claim 8 wherein the openings are provided in form of spacings between subsequent rods.

10. The apparatus according to claim 8 wherein the conveyor belt comprises a pair of mutually parallel, flexible carrying members interconnected by the transverse rods.

11. The apparatus according to claim 8 wherein the rods are each provided with a cover of shock absorbing material such as plastic or wood.

12. The apparatus according to claim 11 wherein the covers are elastic tubes with a longitudinal slit.

13. The apparatus according to claim 11 wherein the openings are provided in form of spacings between the covers of subsequent rods.

14. The apparatus according to claim 8 wherein the rods, when in a position corresponding with the position of one of the belt guides, directly contact the respective belt guide.

15. The apparatus according to claim 8 wherein the collecting means comprise a collecting surface substantially parallel to the section of the transport track and the conveyor belt comprises at least one sweeping means connected to a pair of subsequent rods, said sweeping means extending to the collecting surface when in a position above the collecting surface.

16. The apparatus according to claim 1 wherein the belt guides are wheels.

17. The apparatus according to claim 4 comprising a duct crossing the transport track and provided with an entry gate at its side facing the magnetic separating means and an exit gate at its side remote from the magnetic separating means and wherein the further section of the transport track is located within the duct.

18. The apparatus according to claim 17 comprising a rotating brush positioned above the transport track and in the area of the exit gate, and operatively connected with driving means for brushing light objects in the direction of the entry gate.

19. The apparatus according to claim 5 comprising at least two lateral air outlets positioned in line along the transport track and control means each associated with one of the lateral air outlets for individually controlling the output of each of the lateral air outlets.

20. The apparatus according to claim 5 comprising control means for individually controlling the output of the lower air outlet.

21. A system comprising the apparatus according to claim 1 and a feeding conveyor with a discharge end located above the transport track for feeding waste onto the transport track, wherein the centre lines of the transport track and the conveyor for feeding extend substantially in a common vertical plane.

22. A system comprising the apparatus according to claim 1 and a discharge conveyor with a receiver end located under the transport track for discharging separated waste-glass from the transport track, wherein the centre lines of the transport track and the conveyor for discharging extend substantially in a common vertical plane.

23. An apparatus for separating recyclable waste comprising a conveyer belt transport track along which a conveyer belt extends, the conveyer belt transport track including a first and a second section, collecting means under the first section of the conveyer belt transport track, belt guides positioned along the first section of the conveyer belt transport track, the conveyer belt being provided with openings and at least one of mutually contacting surfaces of the conveyer belt and the belt guides being profiled such that movement of the conveyer belt along the conveyer belt transport track causes a portion of the belt passing the guides to shake in a direction substantially transverse to the conveyer belt transport track, and an air stream separator positioned along a further section of the conveyer belt transport track, the air stream separator comprising a lateral air outlet positioned above the conveyer belt transport track and directed across the conveyer belt transport track and a lower air outlet below the further section of the conveyer belt transport track, the lower air outlet directed upward through a zone of the conveyer belt adjacent the side of the conveyer belt transport track remote from the lateral air outlet.

24. The apparatus according to claim 23, additionally comprising magnetic separating means above the second section of the conveyer belt transport track.

25. The apparatus according to claim 23, additionally comprising a multisided duct crossing the conveyer belt transport track, the duct provided with an entry gate at the side facing the magnetic separating means, and an exit gate at the side remote from the magnetic separating means, wherein the further section of the conveyer belt transport track is located within the duct.

26. The apparatus according to claim 23, additionally comprising at least two lateral air outlets positioned in line along the conveyer belt transport track and control means each associated with one of the lateral air outlets for individually controlling the output of each of the lateral air outlets.

27. The apparatus according to claim 25, additionally comprising control means for individually controlling the output of the lower air outlet.

28. An apparatus for separating recyclable waste comprising a conveyer belt transport track along which a conveyer belt extends, the conveyer belt transport track including a first and a second section, collecting means under the first section of the conveyer belt transport track, the collecting means including a collecting surface substantially parallel to the first section of the conveyer belt transport track, belt guides positioned along the first section of the conveyer belt transport track, the conveyer belt being provided with openings and at least one of mutually contacting surfaces of the conveyer belt and the belt guides being profiled such that movement of the conveyer belt along the conveyer belt transport track causes a portion of the belt passing the guides to shake in a direction substantially transverse to the conveyer belt transport track, and the conveyer belt including at least one sweeping means which extend to the collecting surface when in a position above the collecting surface.

29. The apparatus of claim 28, wherein the sweeping means is a brush.

30. An apparatus for separating recyclable waste comprising a conveyer belt transport track along which a conveyer belt extends, the conveyer belt transport track including a first and a second section, collecting means under the first section of the conveyer belt transport track, the collecting means including a collecting surface substantially parallel to the first section of the conveyer belt transport track, belt guides positioned along the first section of the conveyer belt transport track, the conveyer belt being provided with openings and at least one of mutually contacting surfaces of the conveyer belt and the belt guides being profiled such that movement of the conveyer belt along the conveyer belt transport track causes a portion of the belt passing the guides to shake in a direction substantially transverse to the conveyer belt transport track, the conveyer belt additionally comprising transverse rods mutually spaced along the conveyer belt and at least one sweeping means connected to a pair of subsequent rods, the sweeping means extending to the collecting surface when in a position above the collecting surface.

31. An apparatus for separating recyclable waste comprising a conveyer belt transport track along which a conveyer belt extends, the conveyer belt transport track including a first and a second section, collecting means under the first section of the conveyer belt transport track, belt guides positioned along the first section of the conveyer belt transport track, the conveyer belt being provided with openings and at least one of mutually contacting surfaces of the conveyer belt and the belt guides being profiled such that movement of the conveyer belt along the conveyer belt transport track causes a portion of the belt passing the guides to shake in a direction substantially transverse to the conveyer belt transport track, magnetic separating means above the second section of the conveyer belt transport track, and a multi-sided duct crossing the conveyer belt transport track, the duct provided with an entry gate at the side facing the magnetic separating means, and an exit gate at the side remote from the magnetic separating means, wherein the further section of the conveyer belt transport track is located within the duct.

32. The apparatus according to claim 31, additionally comprising a rotating brush positioned above the conveyer belt transport track and in the area of the exit gate, the rotating brush being operatively connected with driving means for brushing light objects in the direction of the entry gate.