摘要:
A stirring device 100 comprises a chamber 101, and a stirrer 102 for stirring molten glass 7 in the chamber 101. The stirrer 102 has a shaft 105 as a rotation axis, and blades 106a-106e disposed in a plurality of tiers on a side wall of the shaft 105. The blades 106a-106e have support plates 108 and ancillary plates 109. The ancillary plates 109 create, in the molten glass 7, a flow in the radial direction of the shaft 105.
摘要:
Provided is a glass stirring device which is capable of suppressing slip-through of molten glass in the vicinity of a wall surface of a delivery tube, and is also excellent in a stirring action of the molten glass within the molten glass delivery tube. The present invention is concerned with a molten glass stirring device that stirs molten glass within a molten glass delivery tube, the molten glass stirring device including: a rotatable central axis; and a stirring portion provided on the central axis, wherein: the stirring portion includes a stirring blade and a ring paddle; the stirring portion is provided with two or more stirring blades in the axial direction of the central axis and also provided with two or more stirring blades in the circumferential direction of the central axis; and the stirring portion is provided with one or more ring paddles in the axial direction of the central axis.
摘要:
The present invention relates to a process for manufacturing a glass comprising the production of a horizontal stream (F) of molten glass and the mixing of this stream, characterized in that said mixing is carried out by rotating n shafts (10, 20), n being an integer greater than or equal to two, each having an axis, two adjacent shafts (10, 20) being separated by a distance (D) with their axes parallel and with each of these two adjacent shafts (10, 20) connected to at least one rod (11, 12; 21, 22) which is located at least partly in said stream (F) and each of these rods (11, 12, 21, 22) having an axis parallel to the axis of the shaft to which it is connected, in that for said two adjacent shafts at least, the distance between the axis of one rod and the axis of the shaft to which it is connected is greater than or equal to 9/20 of the distance (D) between the axes of these two shafts, and in that said two adjacent shafts are rotated in opposite directions with respect to one another with, following the direction of the stream and by considering, seen from above, that one shaft is on the left and that the other is on the right, the left-hand shaft being rotated in the anticlockwise direction and the right-hand shaft being rotated in the clockwise direction.
摘要:
The present invention relates to a method for producing a molten glass conveying equipment element having a conduit structure for molten glass containing at least one conduit comprising platinum or a platinum alloy, a first ceramic structure provided around the conduit and a second ceramic structure located around the first ceramic structure, in which a gap between the conduit and the second ceramic structure is filled with a slurry body, the slurry body is prepared by blending first stabilized zirconia particles having a median diameter D50 of 0.2 to 5 µm with second stabilized zirconia particles having a median diameter D50 of 0.2 to 2 mm in such a way that a mass ratio of the first stabilized zirconia particles to the second stabilized zirconia particles (mass of the first stabilized zirconia particles/mass of the second stabilized zirconia particles) is 0.3 to 0.6 in which each of the first stabilized zirconia particles and the second stabilized zirconia particles contain, in terms of mass% to respective entire compositions, 75 wt% or more of a zirconium oxide, and a proportion of cubic zirconia in the zirconium oxide is 80 wt% or more, and at least one of stabilizers selected from the group consisting of yttrium oxide and cerium oxide is contained in a total content of 6 to 25 wt%, and then the first ceramic structure is formed by sintering the slurry body at a temperature of 1,200 to 1,700°C.
摘要:
The present invention relates to a method for producing a molten glass conveying equipment element having a conduit structure for molten glass containing at least one conduit comprising platinum or a platinum alloy, a first ceramic structure provided around the conduit and a second ceramic structure located around the first ceramic structure, in which a gap between the conduit and the second ceramic structure is filled with a slurry body, the slurry body is prepared by blending first stabilized zirconia particles having a median diameter D50 of 0.2 to 5 µm with second stabilized zirconia particles having a median diameter D50 of 0.2 to 2 mm in such a way that a mass ratio of the first stabilized zirconia particles to the second stabilized zirconia particles (mass of the first stabilized zirconia particles/mass of the second stabilized zirconia particles) is 0.3 to 0.6 in which each of the first stabilized zirconia particles and the second stabilized zirconia particles contain, in terms of mass% to respective entire compositions, 75 wt% or more of a zirconium oxide, and a proportion of cubic zirconia in the zirconium oxide is 80 wt% or more, and at least one of stabilizers selected from the group consisting of yttrium oxide and cerium oxide is contained in a total content of 6 to 25 wt%, and then the first ceramic structure is formed by sintering the slurry body at a temperature of 1,200 to 1,700°C.
摘要:
The present invention is related to a glass stirrer providing for improved stirring, reduced glass cord and easy adjustment of processing parameters during operation.
摘要:
A method of a stirring a molten glass which includes an analytical model which may be used to optimize the stirring conditions to minimize refractory metal inclusions which may result from the stirring operation.
摘要:
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Konditionieren und Homogenisieren von in Fliesskanälen (1) mit einer vertikalen Mittenlängsebene (E-E) und mit Seitenwänden (3, 4) fliessenden Glasschmelzen unter der Einwirkung von in Fliessrichtung alternierenden Querschnittsänderungen und in Fliessrichtung angeordneten Rührern (5) mit vertikalen Rührerwellen (6). Zur Lösung der Aufgabe, einerseits eine effektive Homogenisierung des Hauptglasstroms im Fliesskanal zu erreichen, und andererseits eine hohe Flexibiltät der gesamten Anlage zu erzielen, wird erfindungsgemäss vorgeschlagen, dass a) die Glasschmelze durch mindestens einen Fliesskanal (1) geleitet wird, in dem die Querschnittsänderungen auf beiden Seiten durch mehrere in Fliessrichtung aufeinander folgende Vorsprünge (7, 8) herbeigeführt werden, die auf die Mittenlängsebene (E-E) ausgerichtet sind und die auf ihren Einströmseiten (7a, 8a) und auf ihren Abströmseiten (7b, 8b) Wandbereiche besitzen, die derart schräg zur Mittenlängsachse (E-E) verlaufen, dass in dem Fliesskanal (1) keine recht- oder spitzwinkligen Ecken gebildet werden, und dass b) die Rührer (5) zwischen in Fliessrichtung aufeinander folgenden Abströmseiten (7b, 8b) und Einströmseiten (7a, 8a) der Vorsrünge (7, 8) angeordnet werden bzw. sind.