Mixing kneader with rotating shafts and kneading bars
AssigneeList AG
InventorsWinfried Dotsch, Walther Schwenk, Alfred Kunz
Life of this patent
Estimating the term…
Abstract
In a mixing kneader for carrying out mechanical, chemical and/or thermal processes, having at least two rotating shafts (5, 6) with their axes parallel, disk surfaces (21) with kneading bars (25) fitted to their periphery are to be provided at least on the one shaft designated as the main shaft (5). These kneading bars will be swept by a cleaning and/or kneading and transporting elements (7) which are fitted to the other shaft designated as a stripping shaft (6). In this arrangement, the kneading bars (25) of two neighboring disk surfaces (21) on the main shaft (5) maintain a mutual spacing (a), through which passes the cleaning and/or kneading and transporting element on the stripping shaft (6).
Claims9
Mixing kneader for carrying out at least one of mechanical, chemical and thermal processes, which comprises:
- at least two rotating shafts having their axes parallel to each other, with one of said shafts being a main shaft and a second of said shafts being a stripping shaft, including means to rotate said shafts such that said main shaft and said stripping shaft rotate in the same direction and at different speeds of rotation;
- disk surfaces having disk surface peripheries provided on both shafts;
- kneading bars extending from each disk surface of the main shaft and fitted to the peripheries of the disk surfaces of the main shaft, said kneading bars of the main shaft having distal ends with wings attached to the distal ends, said wings spaced a small distance from a respective disk surface of the main shaft, so that the kneading bars of the main shaft are of U-shaped design;
- with neighboring kneading bars of two neighboring disk surfaces on the main shaft maintaining a mutual spacing therebetween;
- and
- wherein each of said disk surfaces on the stripping shaft has a U-shaped kneading bar fitted to the peripheries of the disk surfaces on the stripping shaft which kneading bars are positioned from a neighboring kneading bar of another of said disk surfaces on the stripping shaft to form a space there between, the kneading bars of the stripping shaft intermeshing with kneading bars of the main shaft, the disk surfaces of the stripping shaft sweep through said mutual spacing, and wherein the disk surfaces of the main shaft sweep through said space between the neighboring kneading bars of the stripping shaft;
- and
- wherein the disk surface peripheries of the main shaft have a form selected from the group consisting of rings having sawteeth-like projections and rings having wavy indentations, and wherein the disk surface peripheries of the stripping shaft have a form selected from the group consisting of rings having sawteeth-like projections and rings having wavy indentations.
Dependencies are inferred from the claim text.