JP2019519362A5 - - Google Patents

Claims (10)

A mixer,
A mixing member rotatably disposed within the mixer, the shaft including a shaft and a first mixing impeller attached to the shaft and extending radially outward therefrom, the first mixing impeller comprising: A mixing blade configured to form a closed loop with the shaft, the mixing blade having a distal end portion having a first radius of curvature and first and second adjoining distal end portions. A side surface portion, the first and second side surface portions having a radius of curvature different from the first radius of curvature;
A first web portion and a second web portion spaced from the first web portion along a direction parallel to the longitudinal axis of the shaft, the trapping of the first and second web portions. A first and a second web portion mounted inside the major surface of the mixing blade along a defined edge. The mixing device of claim 1, wherein the first web portion is attached to a second mixing impeller adjacent to the first mixing impeller. The mixing device of claim 2, wherein the second web portion is attached to a third mixing impeller adjacent to the first mixing impeller. The mixing device according to any one of claims 1 to 3, wherein at least one of the first and second side surface portions has an infinite radius of curvature. 5. A mixing device according to any one of the preceding claims, wherein each of the first web portion and the second web portion has a free edge. 6. The mixing of claim 5 , wherein the line intersects the second web portion along a line that is parallel to the longitudinal axis of the shaft and is tangent to the free edge of the first web portion. apparatus. Mixing according to claim 5 , along a line parallel to the longitudinal axis of the shaft and tangent to the free edge of the first web portion, said line not intersecting the second web portion. apparatus. 8. The mixing device of any one of claims 1-7, wherein the first radius of curvature is approximately the same as the radius of curvature of the inner wall surface of the mixer adjacent the distal end portion. Heating the raw materials in the melter to form a molten material;
Pouring the molten material into a mixer,
Mixing the molten material using a mixing member mixing member rotatably arranged in the mixer,
The mixing member includes a shaft and a first mixing impeller mounted on the shaft and extending radially outwardly therefrom, the first mixing impeller being configured to form a closed loop with the shaft. A blade, the mixing blade having a distal end portion having a first radius of curvature and a side portion adjacent to the distal end portion, the side portion having the first radius of curvature. Have different radii of curvature, said first mixing impeller further comprising first and second web portions connected to said mixing blades. 10. The method of claim 9, further comprising mixing the molten material with a plurality of mixing impellers.