Glass-liquid supply homogenization device, control method thereof, and glass product production system
By using inclined blade stirring rods and temperature control in the glass melt feeding homogenization device, the problem of limited adjustment range of glass melt output was solved, achieving homogenization and temperature stability of the glass melt, and improving the quality and production efficiency of glass products.
Patent Information
- Application Number
- CN202310607748.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-05-26
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2043-05-26
AI Technical Summary
In existing technologies, the range of glass melt output adjustment is limited, and the adjustment methods are prone to causing defects such as crystallization and streaks on the surface of glass products.
A stirring rod with inclined blades is used. By controlling the rotation speed and direction of the blades, the output of molten glass is adjusted. Combined with heating and cooling devices, the homogenization and temperature control of the molten glass are achieved.
It enables a wide range of adjustments to the glass melt output, avoiding surface defects in glass products and improving product quality and yield.
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Figure CN116621426B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of glass product manufacturing technology, and in particular to a glass melt feeding homogenization device and its control method, and a glass product manufacturing system. Background Technology
[0002] In the mass production of glass products, the glass raw materials are generally heated in a glass melting furnace to form molten glass (hereinafter referred to as molten glass), and then the molten glass is solidified and shaped into glass products using glass forming equipment. A molten glass feeding homogenization device is installed between the glass melting furnace and the glass forming equipment to control the output of molten glass. In related technologies, there are two conventional methods for controlling the output:
[0003] ① Temperature Adjustment: Adjusting the temperature of the molten glass changes its viscosity and flow rate, thereby altering the output rate. However, this method has practical limitations: due to the small temperature range in glass forming, the allowable temperature range for adjusting the molten glass is also limited, resulting in a very small range for adjusting the output rate. In practice, for an output rate of 400 kg / h, adjusting the output rate solely based on temperature limits it to no more than 400 ± 30 kg / h, which cannot meet the requirement for a larger range of output rate adjustments.
[0004] ② Changing the flow area: A stirring rod with a conical head at the end is installed inside the discharge control device, and the conical head cooperates with the conical flow tube at the discharge end. By adjusting the relative position between the two, the gap between them is changed, and the cross-sectional area through which the molten glass flows is changed accordingly, thereby achieving the purpose of adjusting the discharge amount of molten glass. The problem with this method in practice is that when the gap becomes too large, i.e., the cross-sectional area of the gap is larger than the cross-sectional area of the discharge port, it loses its regulating effect. When the gap becomes too small, the thickness of the molten glass becomes thinner, resulting in less heat and a lower temperature in this area. This leads to poorer fluidity of the molten glass and exacerbates the unevenness of temperature and density, causing defects such as crystallization and streaks on the surface of glass products.
[0005] For the reasons mentioned above, there is an urgent need for a new type of glass melt feeding and homogenization device. Summary of the Invention
[0006] The main objective of this invention is to provide a glass melt feeding homogenization device and its control method, as well as a glass product production system, which aims to achieve a wide range of adjustment of the glass melt output.
[0007] To achieve the above objectives, the present invention proposes a glass melt feeding homogenization device, wherein the glass melt feeding homogenization device includes a connected stirring zone and a feeding zone, a stirring rod is provided inside the stirring zone, and the stirring rod is connected to a rotary drive device; the stirring rod is provided with a plurality of first blade assemblies, and the plurality of first blade assemblies are arranged along the axial direction of the stirring rod; the first blade assembly includes a plurality of first blades, and the plurality of first blades are arranged in a ring around the axial direction of the stirring rod, and the extension direction of the blade surface of the first blade is arranged at a first angle with the axial direction of the stirring rod.
[0008] Optionally, the first included angle is 30 to 60 degrees.
[0009] Optionally, the stirring rod includes a plurality of second blade assemblies, each second blade assembly including a plurality of second blade layers, the plurality of second blade layers being arranged along the axial direction of the stirring rod; each second blade layer including a plurality of second blades, the plurality of second blades being arranged in a ring around the axial direction of the stirring rod, and the blade surface extension direction of the second blades being perpendicular to the axial direction of the stirring rod.
[0010] Optionally, a plurality of second blade assemblies are respectively disposed on opposite sides of the first blade assembly along the axial direction of the stirring rod.
[0011] Optionally, the projection areas of the second blade layers of two adjacent layers in the axial direction of the stirring rod do not overlap at least partially.
[0012] Optionally, the stirring zone is cylindrical, and the distance between the rotation radius of the first blade assembly and the second blade assembly and the inner wall radius of the stirring zone is 10~25mm.
[0013] Optionally, the glass melt feeding homogenization device includes a first heating device and a second heating device, wherein the first heating device acts on the stirring zone and the second heating device acts on the feeding zone; the glass melt feeding homogenization device further includes a first temperature measuring device and a second temperature measuring device, wherein the first temperature measuring device is used to measure the temperature of the stirring zone and is electrically connected to the first heating device; the second temperature measuring device is used to measure the temperature of the feeding zone and is electrically connected to the second heating device.
[0014] Optionally, the glass melt feeding homogenization device includes a cooling device, which is located outside the feeding area.
[0015] Optionally, the cooling device includes an annular baffle, with an air outlet at the upper part and an air inlet at the lower part. The air inlet is connected to an external blower through an air inlet pipe. The annular baffle is composed of two semi-circular metal rings assembled together.
[0016] To achieve the above objectives, the present invention also proposes a glass melt feeding homogenization control method, which is applied to the glass melt feeding homogenization device described above; the output amount of glass melt is controlled by controlling the rotation speed and / or rotation direction of the first blade.
[0017] Optionally, it further includes a first heating device, a second heating device, and a cooling device. The first heating device is used to control the temperature of the stirring zone, and the second heating device and the cooling device are used to control the temperature of the feeding zone. By controlling the temperature of the stirring zone and the feeding zone, the temperature stability of the molten glass is controlled.
[0018] To achieve the above objectives, the present invention proposes a glass product manufacturing system, including the above-mentioned glass melt feeding homogenization device, wherein the side of the stirring zone is provided with a feeding end for connecting to a glass melting furnace, and the bottom of the feeding zone is provided with a discharging end for connecting to glass forming equipment; or, the above-mentioned glass melt feeding homogenization control method is adopted.
[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0020] Unlike the methods for controlling the amount of molten glass output in the prior art, this invention uses the design of rotating first blades to adjust the amount of molten glass output, thereby achieving a wide range of adjustment of the amount of molten glass output. At the same time, it can also homogenize the molten glass to avoid defects such as crystallization and streaks on the surface of glass products.
[0021] Specifically, while the rotary drive device drives the stirring rod to rotate, the first blade also rotates accordingly. Since the extension direction of the first blade's surface forms a first angle with the axis of the stirring rod, meaning the first blade is inclined relative to the stirring rod, the rotation of the first blade will stir the surrounding molten glass, as shown in the attached diagram. Figure 4As shown, the molten glass generates a force F perpendicular to the blade surface of the first blade. This force F is decomposed into a horizontal component f1 and a vertical component f2. The horizontal component f1 drives the molten glass to rotate, ensuring thorough mixing and homogenization in the stirring zone. The direction of the vertical component f2 varies depending on the direction of the stirring rod. When the vertical component f2 points towards the feeding zone, as shown in the left figure, it accelerates the flow of the molten glass towards the feeding zone, increasing the feeding speed. When the vertical component f2 points away from the feeding zone, as shown in the right figure, it slows down the flow of the molten glass towards the feeding zone, decreasing the feeding speed. Furthermore, the degree of acceleration or deceleration of the molten glass varies depending on the rotational speed of the stirring rod driven by the rotary drive device. This allows for different output volumes within the same time frame, meeting the different output volume requirements for producing various glass products and enabling a wide range of adjustment of the molten glass output volume. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of an embodiment of the glass melt feeding homogenization device of the present invention;
[0024] Figure 2 This is a schematic diagram of the structure of the stirring rod in one embodiment of the glass melt feeding homogenization device of the present invention;
[0025] Figure 3 This is a three-dimensional schematic diagram of a stirring rod in one embodiment of the glass melt feeding and homogenization device of the present invention;
[0026] Figure 4 This is a schematic diagram of the discharge rate control principle in one embodiment of the glass melt feeding homogenization device of the present invention (the left figure shows the vertical component force f2 pointing towards the feeding area, and the right figure shows the vertical component force f2 facing away from the feeding area).
[0027] Figure 5 For the appendix Figure 1 Sectional view along direction A.
[0028] The names of the components shown in the diagram are as follows:
[0029]
[0030] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0031] The technical solutions of this invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a portion of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.
[0032] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.
[0033] Furthermore, it should be noted that the descriptions involving "first," "second," etc., in this invention are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.
[0034] This embodiment discloses a glass melt feeding and homogenization device 1, as shown in the attached drawing. Figure 1-5 The glass melt feeding and homogenizing device 1 includes a connected stirring zone 2 and a feeding zone 3; a stirring rod 4 is provided inside the stirring zone 2, and the stirring rod 4 is connected to a rotary drive device 5; a plurality of first blade assemblies 6 are provided on the stirring rod 4, and the plurality of first blade assemblies 6 are arranged along the axial direction of the stirring rod 4; the first blade assembly 6 includes a plurality of first blades 601, and the plurality of first blades 601 are arranged in a ring around the axis of the stirring rod 4, preferably in a ring at equal intervals around the axis of the stirring rod 4; and the blade surface extension direction of the first blade 601 is set at a first included angle α with the axis of the stirring rod 4.
[0035] Unlike the methods for controlling the amount of molten glass output in the prior art, this embodiment uses the rotation of the first blade 601 to adjust the amount of molten glass output, thereby achieving a wide range of adjustment of the amount of molten glass output. At the same time, it can also homogenize the molten glass to avoid defects such as crystallization and streaks on the surface of glass products.
[0036] Specifically, while the rotary drive device 5 drives the stirring rod 4 to rotate, the first blade 601 also rotates accordingly. Since the extension direction of the first blade 601 forms a first angle with the axis of the stirring rod 4, i.e., the first blade 601 is inclined relative to the stirring rod 4, the rotation of the first blade 601 will stir the surrounding molten glass, as shown in the attached diagram. Figure 4 As shown, this causes the molten glass to generate a force F perpendicular to the blade surface of the first blade 601. This force F is decomposed into a horizontal component f1 and a vertical component f2. The horizontal component f1 drives the molten glass to rotate, ensuring thorough mixing and homogenization in the stirring zone 2. The direction of the vertical component f2 varies depending on the direction of the stirring rod 4. If the vertical component f2 points towards the feeding zone 3, as shown in the attached diagram... Figure 4 As shown in the left figure, it accelerates the flow of molten glass toward the feeding zone 3, thus increasing the feeding speed of the molten glass; if the vertical component force f2 is directed away from the feeding zone 3, as shown in the attached figure... Figure 4 As shown in the right figure, the flow of molten glass towards the feeding zone 3 is slowed down, thus reducing the feeding speed of the molten glass. Furthermore, the degree of acceleration or deceleration of the molten glass varies depending on the rotational speed of the stirring rod 4 driven by the rotary drive device 5. This results in different output rates within the same time frame, meeting the varying output requirements for producing different glass products, thereby achieving a wide range of adjustable molten glass output rates. Calculations show that increasing or decreasing the stirring rod 4 by 5 revolutions per minute will approximately increase or decrease the output rate by 20 kg / h. In practical applications, calculations show that the original adjustment range of 320~450 kg / h can be expanded to 240~560 kg / h, enriching the product range and improving the company's efficiency.
[0037] Specifically, the first included angle α is 30~60 degrees. With this setting, a suitable tilt angle is selected according to the stirring amount and the strength of the stirring rod 4, preferably 45 degrees. This structure can agitate the glass melt over a wide range, so that the glass melt is fully mixed.
[0038] Specifically, multiple first blade assemblies 6 are provided, and each first blade assembly is provided with multiple first blades 601. This improves the mixing degree of the molten glass and enhances the acceleration or deceleration effect of the molten glass supply, thereby achieving better regulation of the molten glass output. In this embodiment, the number of first blade assemblies 6 is set to 2 sets. In this embodiment, the number of first blades 601 on each first blade assembly is set to 4.
[0039] Specifically, the stirring rod 4 is connected to the rotary drive device 5 via a coupling 501. In this embodiment, the rotary drive device 5 can be selected as a servo motor. Both the coupling 501 and the rotary drive device 5 are positioned above the glass melt feeding homogenization device 1. The rotation speed and direction of the rotary drive device 5 are controlled by the PLC controller 7. Simultaneously, a weight measurement feedback system 8 is installed after the glass forming equipment 15 and is electrically connected to the PLC controller 7. The weight measurement feedback system 8 can adjust the rotation speed and direction of the rotary drive device 5 in a timely manner based on fluctuations in the weight of the glass products and the output volume, ensuring a stable output of glass melt.
[0040] To improve the dimensional accuracy of glass products and reduce defects such as crystallization and streaks to increase yield, it is necessary to improve the homogenization of the molten glass. The main factor to consider in homogenization is whether bubbles in the molten glass can be dissolved and absorbed. According to Professor Tian Yingliang of Beijing University of Technology in his book "New Compilation of Glass Technology," whether nuclei can grow in the molten glass depends primarily on the critical radius r of the bubble. k :
[0041] r k =2δ(1-ln(c / c0)) / (P(c / c0))
[0042] δ -- Surface tension;
[0043] c / c0 -- Supersaturation;
[0044] c -- the saturation concentration of the gas;
[0045] c0 -- the supersaturation concentration of the gas;
[0046] P -- Gas pressure inside the bubble.
[0047] If the bubble size is smaller than the critical radius r k If the bubble pressure increases, meaning the partial pressure of a certain gas component within the bubble increases, the bubble radius further decreases, and the gas within the bubble will dissolve in the molten glass; if the bubble size is greater than the critical radius r... k If the pressure of the bubble decreases, the partial pressure of a certain gas component within the bubble decreases, the supersaturation decreases, and the bubble radius will increase, which is not conducive to the dissolution and absorption of the bubble. In stirring zone 2, without the replenishment of other gases, the bubble radius will not grow naturally; only by relying on external force to reduce the size of the bubbles can absorption be facilitated.
[0048] Based on the above research, this embodiment discloses the following preferred solution: the stirring rod 4 further includes a plurality of second blade assemblies 9, each second blade assembly 9 including a plurality of second blade layers 901, the plurality of second blade layers 901 being arranged along the axial direction of the stirring rod 4; each second blade layer 901 including a plurality of second blades 902, the plurality of second blades 902 being arranged in a ring around the axis of the stirring rod 4, preferably arranged in a ring at equal intervals around the axis of the stirring rod 4; and the blade surface extension direction of the second blades 902 being perpendicular to the axis of the stirring rod 4. With this arrangement, by utilizing the second blades 902 to rotate and stir the molten glass while simultaneously cutting the bubbles in the molten glass laterally, the bubble radius is reduced. As mentioned before, when the bubble size is less than the critical radius r... k The lower gas pressure inside the bubbles facilitates their dissolution and absorption by the molten glass. In other words, the cutting action of the second blade 902 breaks down large bubbles into smaller linear and dot-shaped bubbles, promoting absorption by the molten glass and reducing defects in glass products. This technical solution enables the stirring rod 4 to simultaneously achieve the functions of uniformly mixing the molten glass, eliminating bubbles, and controlling the discharge rate.
[0049] Specifically, the second blade assemblies 9 are respectively disposed on opposite sides of the first blade assembly 6 along the axial direction of the stirring rod 4, that is, second blade assemblies 9 are disposed on both the upper and lower sides of the first blade assembly 6, so that when the first blade assembly 6 drives the molten glass to move upward or downward to form a glass flow, the glass flow can reach the second blade assembly 9 and be cut by the second blades 902. In this embodiment, since there are two groups of first blade assemblies 6, there are correspondingly three groups of second blade assemblies 9, so that the first blade assemblies 6 are distributed between adjacent groups of second blade assemblies 9. At the same time, this embodiment further disperses the glass flow generated by the first blade assembly 6 by setting the second blade assembly 9 as multiple layers of second blade 901, thereby making the bubble cutting effect more obvious. In this embodiment, each group of second blade assemblies 9 is provided with two layers of second blade 901.
[0050] Specifically, the projection areas of the second blade layers 901 of two adjacent layers on the axis of the stirring rod 4 do not overlap at least partially, that is, the corresponding second blades 902 between the upper and lower layers are staggered. This arrangement greatly increases the number of small glass units that divide the original aggregated state of the molten glass, which is beneficial for thorough mixing of the molten glass, improving the homogenization of the molten glass, improving the dimensional accuracy of the product, and increasing the yield.
[0051] As a preferred embodiment, the stirring zone 2 is cylindrical, and the distance between the rotation radius of the first blade assembly 6 and the second blade assembly 9 and the radius of the inner wall of the stirring zone 2 is 10-25 mm. This arrangement allows the distance between the first blade assembly 6 / second blade assembly 9 and the inner wall of the stirring zone 2 to be determined experimentally and by calculation, based on the viscosity characteristics of the molten glass. In practical use, the appropriate rotation radius of the first blade assembly 6 / second blade assembly 9 should be 10-25 mm smaller than the radius of the inner wall of the stirring zone 2; if the viscosity of the molten glass is low, a smaller distance is used; if the viscosity of the molten glass is high, a larger distance is used. This ensures the stirring effect without exerting additional force on the inner wall of the stirring zone 2, thus avoiding damage to the inner wall of the stirring zone 2 or reducing its service life.
[0052] As a preferred embodiment of the above, the glass melt feeding homogenization device 1 includes a first heating device 10 and a second heating device 11. The first heating device 10 acts on the stirring zone 2, and the second heating device 11 acts on the feeding zone 3. With this configuration, since the temperature requirements of the glass melt in the stirring zone 2 and the feeding zone 3 are different, each requires an independent heating device for separate heating. Specifically, since the heating power of the first heating device and the second heating device are different, their required power and current are also different. Therefore, two transformers can be used to supply current separately to achieve different heating powers for the first heating device 10 and the second heating device 11. Simultaneously, adjusting the temperature of the stirring zone 2 and the feeding zone 3 can also help regulate the temperature stability of the glass melt. It is understood that variations in the flow rate of the glass melt entering the stirring zone and the output rate of the feeding zone will lead to differences in the temperature of the glass melt. Since the glass forming temperature needs to be controlled within a certain range, precisely controlling the heating current allows for precise control of the heating power, thereby precisely controlling the temperature of the glass melt, ensuring the accuracy and stability of the supply forming temperature, which is beneficial for reducing dimensional defects in glass products and improving the yield rate.
[0053] Specifically, the glass melt feeding homogenization device 1 also includes a first temperature measuring device 1201 and a second temperature measuring device 1202. The first temperature measuring device 1201 is used to measure the temperature of the stirring zone 2 and is electrically connected to the first heating device 10 via a PLC controller 7. The second temperature measuring device 1202 is used to measure the temperature of the feeding zone 3 and is electrically connected to the second heating device 11 via the PLC controller 7. This configuration allows the first and second temperature measuring devices 1201 and 1202 to collect temperature information of the glass melt inside the stirring zone 2 and the feeding zone 3, and transmit this information to the PLC controller 7. This provides the PLC controller 7 with a reliable basis and direction for adjusting the heating power of the first heating device 10 and the second heating device 11. The first and second temperature measuring devices 1201 and 1202 can be thermocouples.
[0054] Specifically, both the first heating device 10 and the second heating device 11 employ precious metal heaters. This configuration, using precious metals as the heating source and precisely controlling the heating current to control the heating power, allows for precise control of the glass melt temperature. In practice, the glass melt temperature can be precisely controlled within ±0.5℃, ensuring the accuracy and stability of the supplied forming temperature. This helps reduce dimensional defects in glass products and improves the yield rate.
[0055] As a preferred embodiment of the above, the glass melt feeding homogenization device 1 includes a cooling device 13, which is located outside the feeding zone 3. The cooling device 13 includes an annular baffle 1301, with an air outlet 1303 at the upper part and an air inlet 1302 at the lower part. The air inlet 1302 is connected to an external blower 1305 via an air inlet pipe 1304. With this configuration, since the material, shape, and size of the refractory material surrounding the stirring zone 2 and the feeding zone 3 are fixed during installation, its heat dissipation area and heat dissipation capacity are fixed. When adjusting the discharge rate (i.e., adjusting the weight of glass flowing through the stirring zone 2 and the feeding zone 3 per unit time), a larger discharge rate results in a larger weight flowing through per unit time, generating more heat. This heat may not dissipate, causing the glass melt temperature to rise, affecting the forming state, and resulting in unstable forming state and defects in the glass products. Based on the above considerations, this embodiment provides a cooling device 13 outside the feeding zone 3 to ensure the temperature stability of the feeding zone 3 under different output requirements.
[0056] The cooling device 13 includes an annular baffle 1301 surrounding the outer side of the feeding zone 3. In actual use, under the blowing action of the blower 1305, cooling gas is injected into the inner side of the annular baffle 1301 through the air inlet pipe 1304. Guided by the annular baffle 1301, the gas flows over the outer surface of the feeding zone 3, thereby ventilating and dissipating heat on the outer surface of the feeding zone 3, achieving the purpose of regulating the temperature of the glass melt in the feeding zone 3, and thus ensuring the product quality of the glass products. Finally, the cooling gas is discharged from the air outlet 1303 at the top of the annular baffle 1301. The annular baffle 1301 is composed of two semi-circular metal rings assembled together, so that the annular baffle 1301 can be installed from the side of the glass melt feeding homogenization device 1.
[0057] Specifically, it includes several air inlets 1302, which are arranged in a ring at equal intervals around the axis of the stirring rod 4. This arrangement ensures that the heat dissipation effect in each area within the annular baffle 1301 is more consistent, thus avoiding uneven heat dissipation temperature within the feeding zone 3.
[0058] This embodiment also discloses a glass melt feeding homogenization control method, applied to the glass melt feeding homogenization device 1 in the above embodiment; the output amount of glass melt is controlled by controlling the rotation speed and rotation direction of the first blade 601.
[0059] Furthermore, it also includes a first heating device 10, a second heating device 11, and a cooling device 13. The first heating device 10 is used to control the temperature of the stirring zone 2, and the second heating device 11 and the cooling device 13 are used to control the temperature of the feeding zone 3. By controlling the temperature of the stirring zone 2 and the feeding zone 3, the temperature of the molten glass can be kept stable even when the output rate is adjusted over a wide range. Since this molten glass feeding homogenization control method adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here.
[0060] This embodiment also discloses a glass product manufacturing system, including the glass molten material feeding homogenization device of the above embodiment, wherein the side of the stirring zone 2 is provided with a feeding end 201, which is used to connect to the glass melting furnace 14; the bottom of the feeding zone 3 is provided with a discharging end 301, which is used to connect to the glass forming equipment 15; or, the glass molten material feeding homogenization control method of the above embodiment is adopted. Since this glass product manufacturing system adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.
[0061] It should be noted that other aspects of the glass melt feeding homogenization device and its glass product production system disclosed in this invention are prior art and will not be described in detail here.
[0062] The above are merely optional embodiments of the present invention and do not limit the patent scope of the present invention. Any application of the present invention directly or indirectly in other related technical fields is included within the patent protection scope of the present invention.
Claims
1. A glass melt feeding and homogenization device, characterized in that, The glass melt feeding and homogenization device includes a connected stirring zone and a feeding zone. A stirring rod is provided inside the stirring zone, and the stirring rod is connected to a rotary drive device. The stirring rod is provided with a plurality of first blade assemblies, which are arranged along the axial direction of the stirring rod. Each first blade assembly includes a plurality of first blades, which are arranged in a ring around the axial direction of the stirring rod, and the blade surface extension direction of the first blades forms a first angle with the axial direction of the stirring rod. The stirring rod includes a plurality of second blade assemblies, each second blade assembly including a plurality of second blade layers, the plurality of second blade layers being arranged along the axial direction of the stirring rod; each second blade layer including a plurality of second blades, the plurality of second blades being arranged in a ring around the axial direction of the stirring rod, and the blade surface extension direction of the second blades being perpendicular to the axial direction of the stirring rod. The second blade assemblies are respectively disposed on opposite sides of the first blade assembly along the axial direction of the stirring rod.
2. The glass melt feeding homogenization device according to claim 1, characterized in that: The first included angle is 30 to 60 degrees.
3. The glass melt feeding homogenization device according to claim 1, characterized in that: The projection areas of the second blade layers of two adjacent layers in the axial direction of the stirring rod do not overlap at least partially.
4. The glass melt feeding homogenization device according to claim 1, characterized in that: The stirring zone is cylindrical, and the distance between the rotation radius of the first blade assembly and the second blade assembly and the inner wall radius of the stirring zone is 10~25mm.
5. The glass melt feeding homogenization device according to claim 1, characterized in that: The glass melt feeding and homogenizing device includes a first heating device and a second heating device, wherein the first heating device acts on the stirring zone and the second heating device acts on the feeding zone; the glass melt feeding and homogenizing device also includes a first temperature measuring device and a second temperature measuring device, wherein the first temperature measuring device is used to measure the temperature of the stirring zone and is electrically connected to the first heating device; the second temperature measuring device is used to measure the temperature of the feeding zone and is electrically connected to the second heating device.
6. The glass melt feeding homogenization device according to claim 1, characterized in that: The glass melt feeding and homogenization device includes a cooling device, which is located outside the feeding area.
7. The glass melt feeding homogenization device according to claim 6, characterized in that: The cooling device includes an annular baffle, with an air outlet at the upper part and an air inlet at the lower part. The air inlet is connected to an external blower through an air inlet pipe. The annular baffle is composed of two semi-circular metal rings assembled together.
8. A method for controlling the homogenization of molten glass feed, characterized in that: Applied to the glass melt feeding homogenization device as described in any one of claims 1 to 7; the output amount of glass melt is controlled by controlling the rotational speed and / or rotational direction of the first blade.
9. The glass melt feeding homogenization control method according to claim 8, characterized in that: It also includes a first heating device, a second heating device, and a cooling device. The first heating device is used to control the temperature of the stirring zone, and the second heating device and the cooling device are used to control the temperature of the feeding zone. By controlling the temperature of the stirring zone and the feeding zone, the temperature stability of the molten glass is controlled.
10. A glass product manufacturing system, characterized in that: The device includes a glass melt feeding homogenization apparatus as described in any one of claims 1 to 7, wherein a feeding end is provided on the side of the stirring zone, the feeding end is used to connect to a glass melting furnace, and a discharging end is provided at the bottom of the feeding zone, the discharging end is used to connect to glass forming equipment; or, the glass melt feeding homogenization control method as described in any one of claims 8 to 9 is used.
Citation Information
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