CN214011248U - Experimental device for simulation glass liquid is floated and is thrown and wicking - Google Patents

Abstract

The utility model discloses an experimental device for simulating glass liquid floating throwing and tin infiltration, which comprises a high-temperature tube furnace, a high-purity nitrogen tank and a glass liquid conveying pipeline, wherein a high-purity graphite sagger is arranged in the high-temperature tube furnace, tin liquid for suspending glass is placed in the high-purity graphite sagger, the high-purity nitrogen tank fills nitrogen into the high-temperature tube furnace through a pipeline, the other end of the high-temperature tube furnace is provided with a glass liquid conveying pipeline, and the glass liquid conveying pipeline conveys glass liquid to the high-purity graphite sagger; the flattening and polishing process of the high-temperature glass liquid on the molten tin liquid and the tin infiltration generated in the process are observed and simulated, key process parameters are provided for the industrialization of the glass to be newly developed, and a preliminary solution is provided for predicting and solving the tin defects possibly generated in the forming process.

Description

Experimental device for simulation glass liquid is floated and is thrown and wicking

Technical Field

The utility model relates to a glass technical field especially relates to an experimental apparatus of simulation glass liquid is floated and is thrown and wicking.

Background

The float process has incomparable advantages in terms of surface flatness, light transmittance, workability, etc. compared with the conventional process. However, since the molten glass floats on the surface of the molten metal during the formation of the float glass, a series of physicochemical reactions occur at the interface between the two, and tin ions or atoms enter the lower surface of the float glass through the interface, which causes the properties of the lower surface of the float glass to change. A small amount of tin is helpful to improve the chemical resistance of the glass, but excessive tin penetration brings a series of adverse effects on the quality of the float glass, such as obvious defects on appearance quality such as tin pick-up, fogging points and the like, and the float glass generates 'rainbow' and 'warping' phenomena in deep processing.

Simultaneous forming is a key step in the float process. The balance thickness and the polishing time are key technical supports for the design of the novel glass float production forming process. Therefore, in order to better guide the design of a float line and produce low-defect or even zero-defect glass articles, simulations are needed in the laboratory with the greatest possible. However, the current research focuses on the melting stage, and the forming stage is still under further investigation.

SUMMERY OF THE UTILITY MODEL

In view of the above problem, the utility model provides a simulation glass liquid floats experimental apparatus of throwing and wicking observes and simulates the tin-wicking that high temperature glass liquid shakeouts, polishing process and take place at this in-process on the molten tin liquid, provides key technological parameter for simulating the industrialization of newly-developed glass to tin defect for probably producing in the forming process predicts and provides preliminary solution.

In order to realize the technical scheme, the utility model provides a simulation glass liquid floats experimental apparatus who throws and wicking, including high temperature tube furnace, high-purity nitrogen gas jar and glass liquid pipeline be provided with the high-purity graphite saggar in the high temperature tube furnace, place the tin liquor that is used for suspension glass usefulness in the high-purity graphite saggar, the high-purity nitrogen gas jar fills nitrogen gas through the pipeline in to high temperature tube furnace, is provided with glass liquid pipeline at the other end of high temperature tube furnace simultaneously, has glass liquid pipeline carries glass liquid to the high-purity graphite saggar.

The further improvement lies in that: and the high-purity nitrogen tank supplies 99.999 nitrogen into the high-temperature tube furnace through a pipeline, and drives air through the high-temperature tube furnace, so that the high-temperature tube furnace presents a micro-positive pressure protective gas atmosphere and simultaneously protects the tin liquid from reacting with oxygen in the air.

The further improvement lies in that: the upper end of the molten glass conveying pipeline is provided with a hopper, a sealing cover is arranged on the hopper, and a heat preservation layer is arranged in the sealing cover.

The further improvement lies in that: the glass liquid conveying pipeline is obliquely arranged, an angle adjusting frame is arranged in the middle of the glass liquid conveying pipeline, and a user changes the inclination angle of the glass liquid conveying pipeline through the angle adjusting frame.

The further improvement lies in that: the glass liquid conveying pipeline is of a double-layer structure, the inner layer is a platinum-rhodium alloy pipe, and resistance wires are wound outside the platinum-rhodium alloy pipe according to temperature requirements and used for compensating the temperature of glass liquid; the outer layer is a corundum tube and is used for providing support for the platinum-rhodium alloy tube of the inner layer; high-temperature-resistant heat-insulating cotton is filled between the inner layer and the outer layer to prevent heat dissipation.

The further improvement lies in that: the front surface of the high-temperature tube furnace is provided with a high-temperature observation window, and the high-temperature observation window adopts a high-temperature-resistant high-purity quartz glass lens.

The utility model has the advantages that: the utility model discloses can observe and simulate the tin penetration that high temperature glass liquid shakeouts, polishing process and take place at this in-process on molten tin liquid, obtain key technological parameter such as balanced thickness, polishing time simultaneously to prepare out the glass sample that supplies the tin penetration degree of depth and tin penetration volume test, for the research accumulation experimental data of float process production glass tin penetration mechanism.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Wherein: 1. a high temperature tube furnace; 2. a high-purity nitrogen tank; 3. a molten glass conveying pipeline; 4. a high-purity graphite sagger; 5. glass; 6. tin liquid; 7. a pipeline; 8. a hopper; 9. a sealing cover; 10. an angle adjusting bracket; 11. a high temperature observation window.

Detailed Description

In order to deepen the understanding of the present invention, the following embodiments will be combined to make the present invention do further details, and the present embodiment is only used for explaining the present invention, and does not constitute the limitation of the protection scope of the present invention.

According to the illustration in fig. 1, the present embodiment provides an experimental apparatus for simulating molten glass floating and tin infiltration, comprising a high temperature tube furnace 1, a high purity nitrogen gas tank 2 and a molten glass conveying pipeline 3, wherein a high purity graphite sagger 4 is arranged in the high temperature tube furnace 1, molten tin 6 for suspending glass 5 is placed in the high purity graphite sagger 4, the high purity nitrogen gas tank 2 fills nitrogen gas into the high temperature tube furnace 1 through a pipeline 7, the molten glass conveying pipeline 3 is arranged at the other end of the high temperature tube furnace 1, and the molten glass conveying pipeline 3 conveys molten glass to the high purity graphite sagger 4.

The high-purity nitrogen tank 2 supplies 99.999 nitrogen to the high-temperature tube furnace 1 through a pipeline, and drives air through the high-temperature tube furnace 1, so that the high-temperature tube furnace 1 is in a micro-positive pressure protective gas atmosphere, and meanwhile, the tin liquid is protected from reacting with oxygen in the air, the purity of the tin liquid is ensured, and the reliability of a simulation experiment is further ensured.

The upper end of glass liquid conveying pipeline 3 is provided with hopper 8, and be provided with sealed lid 9 on the hopper 8, be provided with the heat preservation in the sealed lid 9, avoid calorific loss, reduce the erosion of corrosive glass liquid to the pipeline simultaneously, reduce and introduce impurity. The funnel is mainly used for facilitating smooth and rapid delivery of high-temperature molten glass to molten tin in the high-purity graphite sagger.

The glass liquid conveying pipeline 3 is obliquely arranged, an angle adjusting frame 10 is arranged in the middle of the glass liquid conveying pipeline 3, a user changes the inclination angle of the glass liquid conveying pipeline 3 through the angle adjusting frame 10, and the glass liquid conveying pipeline is finely adjusted in order to enable glass liquid to be smoothly conveyed to tin liquid according to the characteristics of different formed glass.

The glass liquid conveying pipeline 3 is of a double-layer structure, the inner layer is a platinum-rhodium alloy pipe, and resistance wires are wound outside the platinum-rhodium alloy pipe according to temperature requirements and used for compensating the temperature of glass liquid; the outer layer is a corundum tube and is used for providing support for the platinum-rhodium alloy tube of the inner layer; high-temperature-resistant heat-insulating cotton is filled between the inner layer and the outer layer to prevent heat dissipation and ensure that the temperature of the glass liquid cannot be greatly reduced.

The front side of the high-temperature tube furnace 1 is provided with a high-temperature observation window 11, and the high-temperature observation window 11 adopts a high-temperature-resistant high-purity quartz glass lens, so that the experimental process can be conveniently observed at any time.

The high-temperature tube furnace adopts refractory materials with ultrahigh high temperature resistance at the inlet, and avoids the defect that the refractory materials are peeled off and enter molten glass to form the defect. Meanwhile, a control system with precise temperature control and timing is arranged, so that the temperature uniformity in the high-temperature tubular furnace is controlled to be +/-2 ℃.

The utility model discloses can observe and simulate the tin penetration that high temperature glass liquid shakeouts, polishing process and take place at this in-process on molten tin liquid, obtain key technological parameter such as balanced thickness, polishing time simultaneously to prepare out the glass sample that supplies the tin penetration degree of depth and tin penetration volume test, for the research accumulation experimental data of float process production glass tin penetration mechanism.

Putting the high-purity graphite sagger containing the high-purity tin blocks into a high-temperature tube furnace, opening a sealing cover, opening a pressure reducing valve of a high-purity nitrogen bottle, introducing nitrogen into the high-temperature tube furnace to remove air in a hearth so as to fill the hearth with the nitrogen, covering the sealing cover, and raising the temperature of the high-temperature tube furnace at a rate of 10 ℃/min until tin liquid is completely melted. And the molten glass conveying pipeline is close to the molten tin liquid level in the high-purity graphite sagger by controlling the angle adjusting support. And then heating the high-temperature tube furnace to the target temperature at the heating rate of 5 ℃/min, and preserving the heat for 30 min. And opening the sealing cover, conveying the melted high-temperature glass liquid to the surface of the tin liquid through a glass liquid conveying pipeline in a funnel mode, observing the flattening condition of the glass liquid on the liquid level of the tin liquid through a high-temperature observation window, and simultaneously recording the contact time of the glass liquid and the tin liquid. And (4) timing, taking out the glass sample, cooling, and testing the flattening thickness, the tin penetration depth and the total tin penetration amount.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides an experimental apparatus of simulation glass liquid is floated and is thrown and wicking which characterized in that: including high temperature tube furnace (1), high-purity nitrogen gas jar (2) and glass liquid pipeline (3) be provided with high-purity graphite sagger (4) in high temperature tube furnace (1), tin liquor (6) that are used for suspension glass (5) to use have been placed in high-purity graphite sagger (4), fill nitrogen gas in high-purity nitrogen gas jar (2) through pipeline (7) to high temperature tube furnace (1), be provided with glass liquid pipeline (3) simultaneously at the other end of high temperature tube furnace (1), have glass liquid pipeline (3) carry glass liquid to high-purity graphite sagger (4).

2. The experimental device for simulating glass liquid floating and tin infiltration according to claim 1, characterized in that: and the high-purity nitrogen tank (2) supplies 99.999 nitrogen into the high-temperature tube furnace (1) through a pipeline, and simultaneously drives air through the high-temperature tube furnace (1), so that the high-temperature tube furnace (1) presents a micro-positive pressure protective gas atmosphere and simultaneously protects the tin liquid from reacting with oxygen in the air.

3. The experimental device for simulating glass liquid floating and tin infiltration according to claim 1, characterized in that: the upper end of the molten glass conveying pipeline (3) is provided with a hopper (8), a sealing cover (9) is arranged on the hopper (8), and a heat preservation layer is arranged in the sealing cover (9).

4. The experimental device for simulating glass liquid float and tin penetration according to claim 1 or 2, characterized in that: the glass liquid conveying pipeline (3) is obliquely arranged, an angle adjusting frame (10) is arranged in the middle of the glass liquid conveying pipeline (3), and a user changes the inclination angle of the glass liquid conveying pipeline (3) through the angle adjusting frame (10).

5. The experimental device for simulating glass liquid floating and tin infiltration according to claim 1, characterized in that: the glass liquid conveying pipeline (3) is of a double-layer structure, the inner layer is a platinum-rhodium alloy pipe, and a resistance wire is wound outside the platinum-rhodium alloy pipe according to temperature requirements and used for compensating the temperature of glass liquid; the outer layer is a corundum tube and is used for providing support for the platinum-rhodium alloy tube of the inner layer; high-temperature-resistant heat-insulating cotton is filled between the inner layer and the outer layer to prevent heat dissipation.

6. The experimental device for simulating glass liquid floating and tin infiltration according to claim 1, characterized in that: the front surface of the high-temperature tube furnace (1) is provided with a high-temperature observation window (11), and the high-temperature observation window (11) adopts a high-temperature-resistant high-purity quartz glass lens.

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