| 摘要 |
PURPOSE:A stirrer in which inclined blades are arranged in plural stages at a certain interval in the lengthwise direction of the stirring shaft and the angle of the blade is made in the reverse direction to the next stage, thus developing high homogenization effect in the cortinuous melting system with a relatively simple structure. CONSTITUTION:The stirrer 6 in the crucible 1 is equipped with a plurality of blades 8 inclined at an angle on the rotating shaft 7. The blades 8 are arranged in an equal interval around the periphery of the shaft 7 (e.g., three blades) and the front and back surfaces of the blades are inclined by an angle of theta toward the peripheral direction of the shaft 7 and the inclinations are reversed between each adjacent stages, i.e., A and B, B and C. When the stirrer 6 is rotated in the melted glass 2, the stirring zones 2A, 2B and 2C in which the melted glass forms independent circulation flow are formed corresponding to the rotating blades 8A, 8B and 8C respectively to effect thorough homogenization. |
