Claims
- 1. An apparatus for collecting and discharging high viscosity strands comprising a multi-shaft screw pump including a collection tank, a group of at least four screw shafts arranged at the bottom of the collection tank in generally parallel relationship to one another, a circumferential portion of the shafts being confined by the collection tank with the remaining circumferential portion of the shafts freely exposed to open space within the tank, two adjacent shafts of the group at the bottom of the collection tank forming an inner central shaft pair with at least one shaft on each side thereof engaging one of the shaft pair, the central shaft pair extending axially beyond the collection tank into a downstream pressure build-up zone including discharge means, the pressure build-up zone having walls closely surrounding the axially extended central shaft pair, the diameter and the distance between the two central shafts arranged so that they do not intermesh in the collection tank, the axially extended central shafts having a greater diameter in the pressure build-up zone for engaging with each other, and means to rotate each shaft of the group in an opposite direction relative to an adjacent shaft in the group.
- 2. An apparatus for collecting and discharging high viscosity strands as in claim 1, wherein the axis of each shaft of the group lies in the same plane.
- 3. An apparatus for collecting and discharging high viscosity strands as in claim 1, wherein the axis of each shaft of the inner central shaft pair lies in the same plane and the axes of the remaining shafts of the group lie in an elevated parallel plane to thereby form a converging collection zone.
- 4. An apparatus as in claim 1, wherein the two shafts of the inner central shaft pair are symmetrically positioned with respect to the remaining shafts of the group.
- 5. An apparatus as in claim 1 including a drive means connected to drive one shaft of the group.
- 6. An apparatus as in claim 2 wherein the drive means is connected to one of the inner central shaft pair.
- 7. An apparatus as in claim 1 including a drive means connected to drive both shafts of the inner central shaft pair.
Priority Claims (1)
Number |
Date |
Country |
Kind |
3215273 |
Apr 1982 |
DEX |
|
CROSS REFERENCE TO RELATED APPLICATIONS
This application is a continuation of application Ser. No. 483,546 Apr. 11, 1983 now abandoned.
US Referenced Citations (6)
Continuations (1)
|
Number |
Date |
Country |
Parent |
483546 |
Apr 1983 |
|