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US 2018/0001514 A1Published application
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).
Claims4
An extruder comprising:
- a cylinder;
- and
- one or two 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 vents, and
- wherein the cylinder is provided with, on an upstream of the hopper, a liquid supply device for supplying a cooling liquid into the cylinder, and a liquid discharge port that is opened in a lower portion of the cylinder.
3 more elements
Dependencies are inferred from the claim text.