Rotary drum-type collecting vessel with a raking and pressing screw

• US 4,211,164 A
• Filed: 01/10/1979
• Issued: 07/08/1980
• Est. Priority Date: 01/21/1978
• Status: Expired due to Term

• Current Assignee: Faun Umwelttechnik AG
• Original Assignee: Industrie-Werke Karlsruhe Augsburg AG
• Inventors: Berger, Rudolf, Pilz, Erich, Fichtl, Karl, Durnfelder, Otto
• Primary Examiner(s): McCarthy, Edward J.
• Application Number:
  US06/002,340
• Time in Patent Office: 545 Days
• Field of Search: 100/145, 100/146, 100/147, 100/148, 100/149, 100/150, 100/117, 366/133, 366/156, 366/266, 366/318, 366/319
• US Class Current: 100/145
• CPC Class Codes: B30B 9/3082 with compression means other than rams performing a rectilinear movement
• CPC Class Codes: B65F 3/22 with screw conveyors, rotary tanks

Abstract

A rotary drum-type collecting vessel for receiving and transporting refuse or other bulk material, comprises, a hollow rotary collecting drum having an inside wall, and includes an opening at one end which is covered by a cover plate which covers the opening and has a frusto conical interior surface which projects into the collecting drum. The frusto conical surface terminates in a frustum plane within the drum. It includes a lower portion with a charge opening and it carries a spirally extending feed blade on its surface with pushing elements in the form of ribs defined therealong and rotating therewith so as to force bulk material in an action, such as by a raking worm, into the collecting drum. The material is also pressed therein by an action such that by a thrust worm in a zone between the inside wall of the rotary drum and the frustum plane. The pushing element ribs extend from the upper vertex point of the frusto conical surface up to over the entire charge opening at the inside plane of the surface and enlarging radially to such an extent so as to keep the outer bore uniformly spaced from the ribs. An additional compressing means is associated with the drum and they are effective in the zone of the frustum plane and are advantageously comprised of a spiral screw which is attached to the inside plane of the frustum. The screw may be firmly attached to the frustum of the cover or it may be arranged on the inside plane of the frustum and driven by its separate drive. The direction of rotation is advantageously opposite to that of the rotation of the frustum surface.

Claims

1. A rotary drum-type collecting vessel for receiving and transporting refuse or other bulk material, comprising, a hollow rotary collecting drum having an inside wall and an end opening, a hollow cover plate covering said opening with a frusto conical interior surface which projects into the collecting drum, said surface terminating in a frustum plane within said drum, and having a lower portion with a charge opening and carrying a spirally extending feed blade on said surface, pushing element means provided on the inside surface of the rotary drum and rotating therewith so as to force the bulk material, as by a raking worm, into the collecting drum and pressed therein, as by a thrust worm, in a zone between said inside wall of the rotary drum and said frustum plane, said pushing element means comprising ribs, said feed blade extending from the upper vertex point of said frusto conical surface up to over the entire charge opening at the inside plane of said surface and enlarging radially to such an extent as to keep its outer border uniformly space from said ribs, and additional compressing means associated with said drum and effective in the zone of said frustum plane.

2. A rotary drum-type collecting vessel, as claimed in claim 1, wherein said additional compressing means comprises a spiral screw attached to said cover adjacent said frustum plane.

3. A rotary drum-type collecting vessel, as claimed in claim 2, wherein said screw is affixed to said cover for rotation with said surface.

4. A rotary drum-type collecting vessel, as claimed in claim 1, wherein said additional compressing means comprises a rotatable screw arranged adjacent said frustum plane and mounting drive means connected to said screw for rotating said screw.

5. A rotary drum-type collecting vessel, as claimed in claim 4, wherein said drive means drive said screw in a direction opposite to said surface.