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US 10,518,441 B2Granted
Extruder provided with vents
AssigneeThe Japan Steel Works, Ltd.
InventorsMakoto Tojo, Yohei Shimizu, Daigo Saga
Life of this patent
Estimating the term…
Abstract
An extruder (1) includes a cylinder (2) and a screw (3), and one or more front vents (8a) are provided on the cylinder (2) upstream of a hopper (5) and downstream of a rear vent (7). The cylinder (2) is provided with, between the hopper (5) and the rear vent (7), a liquid supply device (9) for spraying water into the cylinder (2) to cool an interior thereof and a liquid discharge port (12) that is opened in a lower portion of the cylinder (2).
Claims10
An extruder comprising:
- a cylinder;
- and one or more screws which rotate in the cylinder, wherein the cylinder is provided with one or more vents, wherein the extruder is configured such that when a solvent resin solution, which is a resin material containing a volatile substance, is fed from a hopper and the solvent resin solution is sent downstream in the cylinder by the screws, the volatile substance volatilizes so as to be discharged from the one or more vents, and wherein the cylinder is provided with, at a position upstream of the hopper, a liquid supply port for supplying a cooling liquid from a liquid supply device into the cylinder, and a liquid discharge port in a lower portion of the cylinder.
An extruder comprising:
- a cylinder;
- and one or more screws which rotate in the cylinder, wherein the cylinder comprises:
- a first cylinder block comprising a liquid discharge port and a liquid supply port;
- a second cylinder block comprising a hopper at a position downstream of the first cylinder block;
- and a third cylinder block comprising a front vent at a position downstream of the second cylinder block, wherein the liquid discharge port is provided in a lower portion of the cylinder, wherein the liquid supply port is for supplying a cooling liquid into the cylinder, wherein the hopper is configured to receive a solvent resin solution which is a resin material containing a volatile substance, and wherein the screws are configured to send the solvent resin solution downstream in the cylinder to volatize the volatile substance so as to discharge the volatile substance from the front vent.
2 more elements
Dependencies are inferred from the claim text.