Images

Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
  • B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
  • B65B1/20—Reducing volume of filled material
  • B65B1/26—Reducing volume of filled material by pneumatic means, e.g. suction

Definitions

• the invention relates to a method for processing waste and to a device for applying said method, in which the waste is packed in bags of a flexible material, a plastic material in particular, and is subsequently discharged.
• the object of the invention is to largely remove the difficulties indicated and to that end provides for a method, characterized in that immediately after or during putting waste into a bag, the air will be sucked from the bag, so that the waste in the bag will be compressed on account of the external overpressure, whereupon the bag will be sealed hermetically.
• the storage period of the bag in the business can be prolonged without difficulty. Because of the fact that by removing the air from the bag, the waste in the bag will be compressed, the bag will take up a much smaller volume. This entails the fact that a vehicle needs to drive to a certain business less frequently, while it can still pick up all waste produced in the past period of time, due to the fact that the waste takes up less space.
• the waste will mainly consist of very flexible plastic materials such as trays and the like, which will not cause any problems when air is sucked from the bag.
• the bag might contain a number, be it limited, of harder and stiffer objects as well. On sucking the air from the bag, in which the bag will be compressed by the external overpressure, such objects could cause small cracks in the bag.
• the waste is shredded before it is brought into the plastic bag.
• the invention also relates to a device for applying the method described above.
• a device for applying the method described above.
• Such a device will particularly consist of a waste chute for receiving waste, said waste chute being releasably mounted above a shredder for reducing the waste, said shredder being provided with means for receiving a plastic bag and being provided within a suction device for sucking air from the bag, while further, means are provided for hermetically sealing the bag after having sucked the air from it.
• closing means for preventing air flow to the suction means through these devices have been provided.
• Said means can be represented by a lid mounted near the upper end of the waste chute. This can have the advantage, that on sucking the air from the bag, the air present in the waste chute and the shredder can be sucked off simultaneously. Owing to this, the waste leftovers possibly still present therein can be removed so that they will drop into the bag.
• the shredder In order to enable a quick processing of waste, the shredder will have its bottom side be provided with a receiving portion across which the opening of a bag can be positioned, and with clamping means for clamping the top edge of the bag onto the receiving portion.
• the opening communicating with the suction device for the air, will be situated between de operative parts of the shredder and the receiving portion connected to it, and said opening will be provided with a filter for preventing suction of waste remainders.
• the opening will be sufficiently large and also be arranged more or less concealed in order to prevent waste remainder from blocking said opening.
• a sealing device being situated close beneath the receiving portion can be provided for.
• waste bags as they are known per se
• a tube-shaped material with a large length of which in folded or rolled-up condition being immediately above and around the receiving portion.
• the material of the bag can be cut between the sealing seams and the material can be pulled down so that a subsequent bag is obtained.
• the known devices can be applied as well, in which a tube which is formed from a flat sheet of plastic material by means of a mandrel, and which is processed further in the way described above.
• the device comprises a waste chute 1, that can be closed-off at the top by means of the lid 2 being pivotably connected to the waste chute 1.
• the shredder 3 having its operative parts 4 driven by means of a motor 5 connects to the bottom edge of the waste chute 1. At its bottom end, the shredder 3 is provided with the receiving portion 6 on which the top edge of a plastic bag 7 can be clamped by means of a clamping bracket 8. The shredder 3 is also provided with an opening 9 to which a line 10 extending to a vacuum pump 11 connects.
• the sealing device 12 is situated beneath the receiving portion 6.
• the sealing device 12 is activated so that the bag is sealed off. Subsequently, air can be admitted to the shredder 3 and the waste chute 1, e.g. by the pump 11 or in another way, and the clamping bracket 8 can be disengaged, the filled bag can be removed and a new bag can be fitted.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Crushing And Pulverization Processes (AREA)
• Processing Of Solid Wastes (AREA)

Abstract

Description

Claims (8)

Applications Claiming Priority (2)

Publications (1)

Family

ID=19761159

Family Applications (1)

Country Status (2)

Cited By (2)

Citations (2)

• 1995
  • 1995-06-14 NL NL1000562A patent/NL1000562C1/en not_active IP Right Cessation
• 1996
  • 1996-06-13 EP EP96201624A patent/EP0748738A1/en not_active Withdrawn

Patent Citations (2)

Also Published As

Similar Documents

Legal Events