Claims
- 1. A device for afterfoaming expandable plastics prefoamed in a least one prefoaming stage, comprisingat least one storage or supply means for weighing and forwarding a predetermined quality of prefoamed expandable plastics, and a foaming vessel connected to said at least one storage or supply means for a discontinuous or batchwise afterfoaming of the prefoamed expandable plastics fed from said at least one storage or supply means.
- 2. The device according to claim 1, wherein the foaming vessel, besides a feed opening for water vapor, a discharge duct for the foamed material and at least one offgas exhaust opening, comprises a tangentially connected blow-in opening for the prefoamed expandable plastics and a sieve in the upper part of the foaming vessel.
- 3. The device according to claim 1, wherein a weighing means for the prefoamed expandable plastics is integrated in the at least one storage or supply means.
- 4. The device according to claim 1, wherein a cellular wheel sluice or feeder is connected to the at least one storage or supply means and a blower is provided for introducing the prefoamed expandable plastics into the foaming vessel.
- 5. The device according to claim 1, wherein a recycling duct for offgas drawn off the foaming vessel is connected to the foaming vessel for an at least partial recirculation of the offgas to the foaming vessel via a blower while forming a closed-loop fluid conveying circuit for the introduction of the prefoamed expandable plastics.
- 6. The device according to claim 5, wherein an offgas purification plant is provided in a discharge duct.
- 7. The device according to claim 1, wherein a filling level sensor or switch provided in the foaming vessel is adjustable in height.
- 8. The device according to claim 1, wherein a stirring means integrated in the foaming vessel.
- 9. A device for afterfoaming expandable plastics prefoamed in at least one prefoaming stage, comprisingat least one storage or supply means, and a foaming vessel for a discontinuous or batchwise afterfoaming of the prefoamed expandable plastics, the foaming vessel, besides a feed opening for water vapor, a discharge duct for the foamed material and at least one offgas exhaust opening, includes a tangentially connected blow-in opening for the prefoamed expandable plastics and a sieve in an upper part of the foaming vessel.
- 10. A device for afterfoaming expandable plastics, prefoamed in at least one prefoaming stage, comprisingat least one storage or supply means, a foaming vessel for a discontinuous or batchwise afterfoaming of the prefoamed expandable plastics, and a weighing means for the prefoamed expandable plastics being integrated in the at least one storage or supply means.
- 11. A device for afterfoaming expandable plastics, prefoamed in at least one prefoaming stage, comprisingat least one storage or supply means, a foaming vessel for a discontinuous or batchwise afterfoaming of the prefoamed expandable plastics, a cellular wheel sluice or feeder connected to the at least one storage or supply means, and a blower provided for introducing the prefoamed expandable plastics into the foaming vessel.
- 12. A device for afterfoaming expandable plastics, prefoamed in at least one prefoaming stage, comprisingat least one storage or supply means, a foaming vessel for a discontinuous or batchwise afterfoaming of the prefoamed expandable plastics, and a recycling duct for offgas drawn off the foaming vessel being connected to the foaming vessel for an at least partial recirculation of the offgas to the foaming vessel via a blower while forming a closed-loop fluid conveying circuit for the introduction of the prefoamed expandable plastics.
- 13. A device according to claim 12, wherein an offgas purification plant is provided in a discharge duct.
- 14. A device for afterfoaming expandable plastics, prefoamed in at least one prefoaming stage, comprisingat least one storage or supply means, a foaming vessel for a discontinuous or batchwise afterfoaming of the prefoamed expandable plastics, and a filling level sensor or switch provided in the foaming vessel being adjustable in height.
Priority Claims (1)
Number |
Date |
Country |
Kind |
GM 477/99 |
Jul 1999 |
AT |
|
Parent Case Info
This is a Divisional of application Ser. No. 09/391,527 filed Sep. 8, 1999, now U.S. Pat. No. 6,348,511.
US Referenced Citations (11)