A method for producing a double-strength glass
Patent Information
- Application Number
- CN202611053235.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-07-15
- Publication Date
- 2026-10-30
AI Technical Summary
[0004]本发明所要解决的问题是：提供一种二强玻璃的生产方法，以解决现有二强玻璃生产中玻璃液高粘度、难均化、易析晶以及流道处温度和流量稳定性差的问题
1、本发明通过可调式搅拌器，使短搅拌桨和长搅拌桨分别作用于近轴区域和外周区域，并可根据玻璃液粘度、流量及均化要求调节搅拌桨的位置和倾斜角度，从而扩大搅拌范围，减少搅拌盲区，提高二强玻璃液的均化效果；
Smart Images
Figure CN123003117A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of glass manufacturing technology, and specifically relates to a method for producing double-strength glass. Background Technology
[0002] Two-strength glass, especially lithium aluminum silicon (LISi) based LISi glass, possesses good strength, abrasion resistance, drop resistance, and thermal shock resistance, making it suitable for products such as mobile phone cover glass, foldable screen cover glass, automotive display glass, instrument panel screens, and HUD front windshield display glass. Compared to ordinary soda-lime silicon glass and alumina glass, LISi LISi LISi glass has a denser network structure and higher performance requirements. However, the production of LISi LISi LISi glass is more challenging. On one hand, this type of glass has a high content of alumina and silica, resulting in a high melting temperature and high viscosity of the molten glass, making clarification and homogenization difficult. On the other hand, the molten glass has a strong tendency to crystallize; if the local temperature is not well controlled, problems such as crystallization, whitening, and brittleness can easily occur, affecting the transparency and quality of the finished product.
[0003] In current production processes, agitators are typically used to improve the homogeneity of molten glass. However, conventional agitators often have fixed impellers, making it difficult to adjust the position and angle of the blades, and thus hard to adapt to molten glass with different viscosities, flow rates, or production conditions. When the viscosity of the molten glass is high, areas of insufficient mixing can easily form near the agitator rod, in the outer perimeter, or between adjacent agitators, leading to unstable homogenization of the molten glass. Furthermore, after agitation, the molten glass must pass through flow control structures such as gates. Traditional gates are mainly used to regulate flow rate and have limited effect on further homogenization of the molten glass. Near the gate, due to heat dissipation and changes in flow velocity, localized low temperatures, increased viscosity, and even crystallization can easily occur, thus affecting the flow stability of the molten glass. Summary of the Invention
[0004] The problem to be solved by the present invention is to provide a method for producing double-strength glass, so as to solve the problems of high viscosity of glass melt, difficulty in homogenization, easy crystallization, and poor temperature and flow stability in the flow channel in the existing double-strength glass production.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A method for producing double-strength glass includes the following steps: S1. Melt the two-strong glass raw materials to form a glass melt, and make the glass melt flow along the flow channel; S2. An agitator is installed in the stirring and homogenization zone of the glass liquid flow channel. The agitator includes a long crossbeam, a short crossbeam, a stirring rod, a short stirring paddle, and a long stirring paddle. The upper end of the stirring rod is inserted into the long crossbeam, and the lower end of the stirring rod is inserted into the short crossbeam. The short stirring paddle is installed on both sides of the stirring rod, and the two ends of the short stirring paddle are slidably connected to the stirring rod and the long crossbeam, respectively. The long stirring paddle is installed on the side of the short stirring paddle, and the two ends of the long stirring paddle are slidably connected to the long crossbeam and the short crossbeam, respectively. S3. Adjust the connection positions of the short and long agitators on the agitator rod, long crossbeam and short crossbeam, and lock them in place after the short and long agitators form a preset tilt angle. S4. Drive the stirring rod to rotate, so that the stirring rod drives the long crossbeam, short crossbeam, short stirring blade and long stirring blade to rotate synchronously. The short stirring blade performs near-axial shear stirring of the glass liquid in the area close to the stirring rod, and the long stirring blade performs peripheral shear stirring of the glass liquid in the area far from the stirring rod, thereby achieving composite homogenization of the glass liquid. S5. After being stirred and homogenized, the glass liquid flows through the flow channel gate. The flow channel gate includes an upper gate and a lower gate. The upper gate and the lower gate are slidably connected. The lower gate has a U-shaped structure and irregular holes are provided on both sides of the lower gate. The central axes of the irregular holes on the two sides are not on the same straight line. When the glass liquid flows through the irregular holes, it is squeezed, sheared and reversed. S6. The flow channel gate is heated by the electrode channel and electric heating wire set in the upper gate to keep the temperature and viscosity of the glass melt at the flow channel gate within a preset range, so as to suppress the crystallization of the glass melt at the flow channel gate and stabilize the glass melt flow rate.
[0006] Preferably, the upper and lower ends of the stirring rod are respectively provided with threaded connectors. The threaded connector at the upper end of the stirring rod passes through the center hole of the long crossbeam and is threadedly connected to the drive shaft. The threaded connector at the lower end of the stirring rod passes through the center hole of the short crossbeam and is threadedly connected to the nut, so that the drive shaft, long crossbeam, stirring rod, short crossbeam and nut form a detachable coaxial connection structure.
[0007] Preferably, the long crossbeam and the short crossbeam are respectively provided with strip-shaped holes along their length, and the two sides of the stirring rod are respectively provided with through grooves; the ends of the short stirring paddle and the long stirring paddle are respectively connected to the limiting plate by hinges, and the limiting plate can slide along the strip-shaped holes or through grooves to adjust the installation position and tilt angle of the short stirring paddle and the long stirring paddle.
[0008] Preferably, the limiting plates at both ends of the long stirring paddle are located in the strip holes of the long crossbeam and the short crossbeam, respectively, and are locked and fixed to the strip holes by limiting bolts; The end of the short stirring paddle furthest from the stirring rod slides into the slot of the long crossbeam through a limiting plate and is locked in place by a limiting bolt; The end of the short stirring paddle closest to the stirring rod slides into the through groove of the stirring rod via a limiting plate, and is locked and fixed by a screw passing through the limiting plate and the through groove.
[0009] Preferably, in S3, the tilt angle of the short and long stirring paddles relative to the stirring rod is changed by adjusting the position of the limiting plate in the strip hole and the through groove. After adjustment, the stirrer is tightened by the limit bolts and screws to adapt to different viscosities, flow rates, or homogenization requirements of the molten glass.
[0010] Preferably, multiple stirrers are arranged in the stirring and homogenization zone, and the multiple stirrers are arranged at intervals along the direction perpendicular to the flow direction of the molten glass; the short and long stirring blades in adjacent stirrers form an alternating covering area in the width direction of the molten glass channel, so that the molten glass between adjacent stirrers is continuously sheared and homogenized; the rotation speed of the multiple stirrers is the same or they can be adjusted independently, and the rotation direction of the multiple stirrers is the same or opposite.
[0011] Preferably, a T-shaped slot is provided at the bottom of the upper gate plate, and a T-shaped rail is provided at the top of the lower gate plate; the T-shaped rail and the T-shaped slot are slidably inserted in the horizontal direction, so that the upper gate plate and the lower gate plate form a detachable assembly structure, and restrict the upper gate plate and the lower gate plate from separating in the vertical direction.
[0012] Preferably, the U-shaped structure of the lower gate includes a bottom plate and side plates located on both sides of the bottom plate, and multiple irregular holes are provided on the bottom plate and / or the two side plates; The irregular orifice is a non-circular orifice, and the orifice diameter has a streamlined structure that gradually narrows and then expands along the flow direction of the molten glass, so that the molten glass forms a contraction, acceleration, diffusion and reversal mixing when passing through the irregular orifice.
[0013] Preferably, the irregular holes on the two sides of the lower gate are staggered; the central axes of the irregular holes on the two sides are not collinear, and / or the long axes of the irregular holes on the two sides form an angle of 60° to 90°, so that the molten glass forms a multi-directional shear flow and turbulent flow when passing through the lower gate.
[0014] Preferably, the electrode channel extends along the length of the upper gate plate, and the electric heating wire is laid in the electrode channel; the upper gate plate and the lower gate plate are made of thermally conductive material, so that the heat generated by the electric heating wire is transferred to the lower gate plate through the upper gate plate to supplement the heat of the glass liquid flowing near the lower gate plate; Furthermore, the measured temperature T of the molten glass near the flow channel gate is collected, and the heating power P of the electric heating wire is adjusted according to the temperature difference between the measured temperature T and the target temperature T0, satisfying: ; ; Where Pb is the base heating power and k is the temperature adjustment coefficient; when the measured temperature T is lower than the target temperature T0, the heating power P is increased; when the measured temperature T reaches or exceeds the target temperature T0, the heating power P is decreased.
[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention uses an adjustable stirrer to make the short stirring blade and the long stirring blade act on the near-axial region and the outer peripheral region respectively. The position and tilt angle of the stirring blade can be adjusted according to the viscosity, flow rate and homogenization requirements of the glass melt, thereby expanding the stirring range, reducing the stirring blind zone and improving the homogenization effect of the two strong glass melts. 2. The stirrer of the present invention adopts a detachable and adjustable connection structure between the long crossbeam, the short crossbeam, the stirring rod and the stirring paddle, which facilitates assembly, disassembly, maintenance and process adjustment, and can adapt to the production needs of double-strength glass under different production conditions. 3. The present invention provides a U-shaped lower gate and irregular holes in the flow channel gate. When the glass liquid passes through the irregular holes, it generates compression, shearing, contraction, diffusion and reversal flow, which can further force homogenize the glass liquid after stirring and homogenization, and improve the mixing uniformity of the glass liquid when passing through the flow channel area. 4. By setting an electric heating structure inside the upper gate, the present invention can supplement the heat of the glass melt near the flow channel gate, which can reduce the risk of low temperature, increased viscosity and crystallization near the gate, and help stabilize the glass melt flow rate, thereby improving the stability of the production of Erqiang glass and the quality of the finished product. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of the stirrer of the present invention; Figure 2 This is an anatomical diagram of the overall structure of the stirrer of the present invention; Figure 3 This is an enlarged schematic diagram of the end connection component of the short and long stirring blades of the present invention; Figure 4 This is an anatomical diagram of the flow channel gate structure of the present invention; Figure 5 This is a cross-sectional view of a single hole of the irregular hole of the present invention.
[0017] In the diagram: 1. Long crossbeam; 2. Short crossbeam; 3. Stirring rod; 4. Short stirring paddle; 5. Long stirring paddle; 6. Drive shaft; 7. Strip hole; 8. Through slot; 9. Threaded connector; 10. Nut; 11. Hinge; 12. Limiting plate; 13. Limiting bolt; 14. Screw; 15. Upper gate plate; 16. Lower gate plate; 17. Rail; 18. Slot; 19. Irregular hole; 20. Electrode channel; 21. Electric heating wire. Detailed Implementation
[0018] The technical solution of the present invention will be further described below with reference to the accompanying drawings. It should be understood that the following embodiments are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. Where there is no conflict, the technical features in the following embodiments can be combined with each other.
[0019] Example 1: like Figures 1 to 5As shown, this embodiment provides a method for producing dual-strength glass, which includes glass melting, stirring and homogenization, forced homogenization by a gate, and heat replenishment and temperature control in the flow channel. First, the secondary strong glass raw material is added to the furnace and melted to form molten glass, which then flows along the flow channel to the subsequent forming area. Because the secondary strong glass has a high viscosity and is difficult to homogenize, a stirrer is installed in the stirring and homogenization zone of the molten glass flow channel. like Figure 1 and Figure 2 As shown, the agitator includes a long crossbeam 1, a short crossbeam 2, a stirring rod 3, a short stirring paddle 4, and a long stirring paddle 5. The stirring rod 3 is vertically positioned, with its upper end connected to the long crossbeam 1 and its lower end connected to the short crossbeam 2. The short stirring paddle 4 is positioned on both sides of the stirring rod 3, with one end connected to the stirring rod 3 and the other end connected to the long crossbeam 1. The long stirring paddle 5 is positioned on the side of the short stirring paddle 4, with both ends connected to the long crossbeam 1 and the short crossbeam 2, respectively. like Figure 2 As shown, threaded connectors 9 are provided at the upper and lower ends of the stirring rod 3. The threaded connector 9 at the upper end of the stirring rod 3 passes through the center hole of the long crossbeam 1 and is threadedly connected to the drive shaft 6. The threaded connector 9 at the lower end of the stirring rod 3 passes through the center hole of the short crossbeam 2 and is threadedly connected to the nut 10. Through this structure, the drive shaft 6, the long crossbeam 1, the stirring rod 3, the short crossbeam 2, and the nut 10 form a detachable coaxial connection structure, which facilitates installation, disassembly, and maintenance. like Figure 2 and Figure 3 As shown, strip-shaped holes 7 are respectively opened on the long crossbeam 1 and the short crossbeam 2, and through grooves 8 are opened on both sides of the stirring rod 3. The ends of the short stirring paddle 4 and the long stirring paddle 5 are respectively connected to the limiting plate 12 by hinges 11. The limiting plate 12 can slide along the strip-shaped holes 7 or the through grooves 8, thereby adjusting the position and tilt angle of the short stirring paddle 4 and the long stirring paddle 5; Specifically, the limiting plates 12 at both ends of the long stirring paddle 5 slide in engagement with the strip holes 7 on the long crossbeam 1 and the short crossbeam 2, respectively, and are locked in place by limiting bolts 13. The end of the short stirring paddle 4 furthest from the stirring rod 3 slides in engagement with the strip hole 7 on the long crossbeam 1 through the limiting plate 12 and is locked in place by limiting bolts 13; the end of the short stirring paddle 4 closest to the stirring rod 3 slides in engagement with the through groove 8 on the stirring rod 3 through the limiting plate 12 and is locked in place by screws 14. Before production or during process adjustments, the position of the limiting plate 12 can be moved according to the viscosity, flow rate, and homogenization requirements of the molten glass, so that the short stirring paddle 4 and the long stirring paddle 5 form a suitable tilt angle. After adjustment, it is fixed by the limiting bolt 13 and the screw 14. Thus, the stirrer can adapt to different production conditions of molten glass. During production, the drive shaft 6 drives the stirring rod 3 to rotate, which in turn drives the long crossbeam 1, short crossbeam 2, short stirring paddle 4, and long stirring paddle 5 to rotate synchronously. The short stirring paddle 4 mainly performs near-axial shear stirring on the molten glass close to the stirring rod 3, while the long stirring paddle 5 mainly performs peripheral shear stirring on the molten glass farther from the stirring rod 3. The combined action of the short stirring paddle 4 and the long stirring paddle 5 causes the molten glass to undergo compound shearing at different radii and heights, thereby reducing the stirring blind zone and improving the homogenization effect of the molten glass. like Figure 4 As shown, the stirred molten glass continues to flow through the flow channel gate. The flow channel gate includes an upper gate 15 and a lower gate 16. A slot 18 is provided at the bottom of the upper gate 15, and a rail 17 is provided at the top of the lower gate 16. The rail 17 and the slot 18 are slidably inserted into each other, forming a detachable connection structure between the upper gate 15 and the lower gate 16. Preferably, the rail 17 is a T-shaped rail, and the slot 18 is a T-shaped slot, which can prevent the upper gate 15 and the lower gate 16 from separating in the vertical direction, improving assembly stability. The lower gate 16 has a U-shaped structure with irregularly shaped holes 19 on both sides. The irregularly shaped holes 19 on the two sides are staggered, so that the central axes of the irregularly shaped holes 19 are not on the same straight line. When the molten glass passes through the lower gate 16, it undergoes compression, shearing and reversal flow at the irregularly shaped holes 19, thereby achieving further forced homogenization. like Figure 5 As shown, the aperture of the irregularly shaped orifice 19 has a streamlined structure that gradually narrows and then expands along the flow direction of the molten glass. After the molten glass enters the irregularly shaped orifice 19, it first contracts and accelerates, and then diffuses out, thereby forming a turbulent mixture, which improves the shear rate and mixing uniformity of the molten glass when passing through the gate area; like Figure 4 As shown, an electrode channel 20 is provided inside the upper gate plate 15, and an electric heating wire 21 is laid inside the electrode channel 20. After the electric heating wire 21 is working, it generates heat, which is transferred through the upper gate plate 15 to the lower gate plate 16, and replenishes the heat of the glass melt flowing near the lower gate plate 16. Through this heat replenishment method, the viscosity increase and crystallization risk of the glass melt near the flow channel gate plate due to heat dissipation can be reduced, while stabilizing the glass melt flow rate.
[0020] Example 2: like Figures 1 to 5 As shown, this embodiment further explains the arrangement of the stirrer and the temperature control method based on Embodiment 1; In this embodiment, multiple stirrers are provided in the stirring and homogenization zone of the molten glass flow channel. The multiple stirrers are arranged at intervals along a direction perpendicular to the flow direction of the molten glass. Each stirrer employs a method such as... Figure 1 and Figure 2 The structure shown includes a long crossbeam 1, a short crossbeam 2, a stirring rod 3, a short stirring paddle 4, and a long stirring paddle 5. Adjacent stirrers can be staggered, so that the long impeller 5 of one stirrer covers the area outside the short impeller 4 of the adjacent stirrer. This prevents the formation of unmixed areas between adjacent stirrers, allowing the molten glass to undergo continuous shearing along the width of the flow channel. Multiple stirrers can operate at the same speed, or their speeds can be adjusted individually to ensure the lateral uniformity of the molten glass. The rotation directions of the multiple stirrers can be the same or adjacent and opposite to each other to enhance the localized agitation mixing effect. When installing or adjusting the mixer, please refer to... Figure 3 As shown in the diagram, first loosen the limiting bolt 13 and screw 14, then move the limiting plate 12 to change the tilt angle of the short stirring paddle 4 and the long stirring paddle 5. For molten glass with high viscosity, the tilt angle of the short stirring paddle 4 and the long stirring paddle 5 can be increased to enhance axial tumbling and radial flow; for molten glass with high flow rate or high homogenization requirements, the outer circumferential coverage of the long stirring paddle 5 can be increased to improve the shear stirring intensity of the outer circumferential region. After adjustment, tighten and fix it using the limiting bolt 13 and screw 14. In this embodiment, the flow channel gate still adopts the following... Figure 4 The diagram shows a combination structure of upper gate 15 and lower gate 16. Both sides of the lower gate 16 are provided with irregularly shaped holes 19, which are staggered. Furthermore, the major axes of the irregularly shaped holes 19 on the two sides can form an angle of 60° to 90°, so that after the molten glass passes through one irregularly shaped hole 19, its flow direction is not completely consistent with the guiding direction of the other irregularly shaped hole 19, thereby forming a multi-directional turbulent flow and improving the forced homogenization effect. like Figure 5 As shown, the irregularly shaped orifice 19 adopts a cross-sectional structure that tapers and then expands. This structure can create a local acceleration zone and a diffusion zone when the molten glass passes through the irregularly shaped orifice 19, subjecting the molten glass to shearing, compression, and diffusion effects. Compared with ordinary straight orifices, this irregularly shaped orifice 19 can increase the degree of disturbance when the molten glass passes through the gate area and reduce the possibility of the molten glass forming a local stagnation zone near the gate. Regarding temperature control, this embodiment can install a temperature detection device near the flow channel gate to collect the measured temperature T of the molten glass. Based on the temperature difference between the measured temperature T and the target temperature T0, the heating power P of the electric heating wire 21 is adjusted to satisfy: ; ; Where Pb is the base heating power and k is the temperature adjustment coefficient. When the measured temperature T is lower than the target temperature T0, the heating power of the electric heating wire 21 is increased to raise the temperature of the upper gate 15 and the lower gate 16, and to supplement the heating of the glass melt near the flow channel gate; when the measured temperature T reaches or exceeds the target temperature T0, the heating power of the electric heating wire 21 is reduced to avoid local overheating. This embodiment, through continuous shearing by multiple stirrers, angle adjustment of adjustable stirring paddles, forced homogenization by irregular holes 19, and temperature compensation by electric heating wire 21, can further improve the uniformity of the double-strength glass melt in the flow channel, reduce the risk of crystallization, and improve the stability of the production process. In the above embodiments, the long crossbeam 1, short crossbeam 2, short stirring paddle 4, long stirring paddle 5, and lower gate 16 can be made of molybdenum-based alloy, Zr-La-Mo alloy, or high-purity molybdenum material; the stirring rod 3 can be made of high-temperature resistant alloy steel; and the upper gate 15 can be made of refractory material, thermally conductive refractory material, or thermally conductive refractory composite material. The selection of the above materials can be adjusted according to the production temperature, the corrosiveness of the molten glass, and the equipment cost.
[0021] It should be noted that the directional terms such as "upper," "lower," "both sides," and "ends" used in this article are based on the state shown in the attached drawings and do not constitute a limitation on the actual installation direction. When the installation direction of the device changes, the corresponding positional relationships can be adjusted accordingly.
Claims
1. A method for producing double-strength glass, characterized in that, Includes the following steps: S1. Melt the two-strong glass raw materials to form a glass melt, and make the glass melt flow along the flow channel; S2. An agitator is set in the stirring and homogenization zone of the glass liquid flow channel. The agitator includes a long crossbeam (1), a short crossbeam (2), a stirring rod (3), a short stirring paddle (4), and a long stirring paddle (5). The upper end of the stirring rod (3) is inserted into the long crossbeam (1), and the lower end of the stirring rod (3) is inserted into the short crossbeam (2). The short stirring paddle (4) is set on both sides of the stirring rod (3). The two ends of the short stirring paddle (4) are slidably connected to the stirring rod (3) and the long crossbeam (1) respectively. The long stirring paddle (5) is set on the side of the short stirring paddle (4). The two ends of the long stirring paddle (5) are slidably connected to the long crossbeam (1) and the short crossbeam (2) respectively. S3. Adjust the connection positions of the short stirring paddle (4) and the long stirring paddle (5) on the stirring rod (3), the long crossbeam (1) and the short crossbeam (2) so that the short stirring paddle (4) and the long stirring paddle (5) form a preset tilt angle and then lock and fix them. S4. Drive the stirring rod (3) to rotate, so that the stirring rod (3) drives the long crossbeam (1), short crossbeam (2), short stirring paddle (4) and long stirring paddle (5) to rotate synchronously. The short stirring paddle (4) performs near-axial shear stirring of the glass liquid in the area close to the stirring rod (3), and the long stirring paddle (5) performs peripheral shear stirring of the glass liquid in the area far away from the stirring rod (3), thereby performing composite homogenization of the glass liquid. S5. After being stirred and homogenized, the glass liquid flows through the flow channel gate. The flow channel gate includes an upper gate (15) and a lower gate (16). The upper gate (15) and the lower gate (16) are slidably connected. The lower gate (16) has a U-shaped structure, and irregular holes (19) are provided on both sides of the lower gate (16). The central axes of the irregular holes (19) on the two sides are not on the same straight line. When the glass liquid flows through the irregular holes (19), it is squeezed, sheared and reversed. S6. The flow channel gate is heated by the electrode channel (20) and the electric heating wire (21) set in the upper gate (15) so that the temperature and viscosity of the glass liquid at the flow channel gate are kept within a preset range, so as to suppress the crystallization of the glass liquid at the flow channel gate and stabilize the flow rate of the glass liquid.
2. The method for producing double-strength glass according to claim 1, characterized in that, The upper and lower ends of the stirring rod (3) are respectively provided with threaded connectors (9). The threaded connector (9) at the upper end of the stirring rod (3) passes through the center hole of the long crossbeam (1) and is threadedly connected to the drive shaft (6). The threaded connector (9) at the lower end of the stirring rod (3) passes through the center hole of the short crossbeam (2) and is threadedly connected to the nut (10), so that the drive shaft (6), the long crossbeam (1), the stirring rod (3), the short crossbeam (2) and the nut (10) form a detachable coaxial connection structure.
3. The method for producing double-strength glass according to claim 1, characterized in that, Long crossbeam (1) and short crossbeam (2) are respectively provided with strip holes (7) along the length direction, and through grooves (8) are respectively provided on both sides of the stirring rod (3); The ends of the short stirring paddle (4) and the long stirring paddle (5) are connected to the limiting plate (12) by hinges (11). The limiting plate (12) can slide along the strip hole (7) or the through groove (8) to adjust the installation position and tilt angle of the short stirring paddle (4) and the long stirring paddle (5).
4. The method for producing double-strength glass according to claim 1, characterized in that, The limiting plates (12) at both ends of the long stirring paddle (5) are located in the strip holes (7) of the long crossbeam (1) and the short crossbeam (2), respectively, and are locked and fixed to the strip holes (7) by limiting bolts (13); The end of the short stirring paddle (4) away from the stirring rod (3) slides through the limiting plate (12) and the strip hole (7) of the long crossbeam (1), and is locked and fixed by the limiting bolt (13); The end of the short stirring paddle (4) near the stirring rod (3) slides into the through groove (8) of the stirring rod (3) through the limiting plate (12), and is locked and fixed after passing through the limiting plate (12) and the through groove (8) by the screw (14).
5. The method for producing double-strength glass according to claim 4, characterized in that, In S3, by adjusting the position of the limiting plate (12) in the strip hole (7) and the through groove (8), the tilt angle of the short stirring paddle (4) and the long stirring paddle (5) relative to the stirring rod (3) is changed; After adjustment, the stirrer is locked by the limit bolt (13) and screw (14) to adapt to different viscosities, different flow rates or different homogenization requirements of the two strong glass liquid.
6. The method for producing double-strength glass according to claim 1, characterized in that, Multiple stirrers are installed in the stirring and homogenization zone, and the stirrers are arranged at intervals along a direction perpendicular to the flow direction of the molten glass. The short impeller (4) and long impeller (5) in adjacent agitators form an interlaced covering area in the width direction of the glass liquid flow channel, so that the glass liquid between adjacent agitators is subjected to continuous shear homogenization. Multiple stirrers can have the same speed or be adjusted independently, and the rotation directions of multiple stirrers can be the same or opposite.
7. The method for producing double-strength glass according to claim 1, characterized in that, The bottom of the upper gate (15) is provided with a T-shaped slot (18), and the top of the lower gate (16) is provided with a T-shaped rail (17); the T-shaped rail (17) and the T-shaped slot (18) slide and insert in the horizontal direction, so that the upper gate (15) and the lower gate (16) form a detachable assembly structure, and restrict the upper gate (15) and the lower gate (16) from separating in the vertical direction.
8. The method for producing double-strength glass according to claim 1 or 7, characterized in that, The U-shaped structure of the lower gate (16) includes a bottom plate and side plates located on both sides of the bottom plate, and multiple irregular holes (19) are provided on the bottom plate and / or the two side plates. The irregular hole (19) is a non-circular hole, and the diameter of the irregular hole (19) is a streamlined structure that gradually narrows and then expands along the flow direction of the glass liquid, so that the glass liquid forms contraction, acceleration, diffusion and reversal mixing when passing through the irregular hole (19).
9. The method for producing double-strength glass according to claim 8, characterized in that, The irregular holes (19) on the two sides of the lower gate (16) are staggered; the central axes of the irregular holes (19) on the two sides are not collinear, and / or the long axes of the irregular holes (19) on the two sides form an angle of 60° to 90°, so that the molten glass forms a multi-directional shear flow and turbulent flow when passing through the lower gate (16).
10. The method for producing double-strength glass according to claim 1, characterized in that, The electrode channel (20) extends along the length of the upper gate (15), and the electric heating wire (21) is laid in the electrode channel (20); the upper gate (15) and the lower gate (16) are made of thermally conductive material, so that the heat generated by the electric heating wire (21) is transferred to the lower gate (16) through the upper gate (15) to supplement the heat of the glass liquid flowing near the lower gate (16); Furthermore, the measured temperature T of the molten glass near the flow channel gate is collected, and the heating power P of the electric heating wire (21) is adjusted according to the temperature difference between the measured temperature T and the target temperature T0, satisfying: ； ； Where Pb is the base heating power and k is the temperature adjustment coefficient; when the measured temperature T is lower than the target temperature T0, the heating power P is increased; when the measured temperature T reaches or exceeds the target temperature T0, the heating power P is decreased.