CN218232194U

CN218232194U - Externally heated molten glass channel

Info

Publication number: CN218232194U
Application number: CN202222576074.2U
Authority: CN
Inventors: 刘群; 高树军; 张云晓
Original assignee: Qingdao Fusion Photoelectric Technology Co Ltd
Current assignee: Qingdao Fusion Photoelectric Technology Co Ltd
Priority date: 2022-09-28
Filing date: 2022-09-28
Publication date: 2023-01-06
Anticipated expiration: 2032-09-28

Abstract

The utility model discloses an external heating formula glass liquid passageway, it belongs to the glass processing field, and it has solved among the prior art glass liquid passageway heating inhomogeneous, and the channel corrosion leads to the impure problem of glass liquid. The glass melt heating device mainly comprises a glass melt channel, wherein a heat preservation module is arranged on the glass melt channel, a plurality of groups of heating structures are arranged in the heat preservation module, each heating structure comprises a heating rod I, a heating rod II and a plurality of thermocouples, two ends of each heating rod I and two ends of each heating rod II extend out of the heat preservation module, and the heating rods I and the heating rods II are matched to wrap the glass melt channel; the thermocouples are uniformly distributed outside the molten glass channel. The utility model adopts the heating rod to perform the power-on heating to replace the direct power-on heating of the glass liquid channel, thereby avoiding the corrosion to the channel, prolonging the service life of the glass liquid channel and reducing the cost; the glass liquid channel is uniformly heated by adopting a mode of matching a heating rod with a thermocouple.

Description

Externally heated molten glass channel

Technical Field

The utility model relates to a glass processing field, specifically speaking especially relates to an external heating formula glass liquid passageway.

Background

In the current production process, the molten glass enters a tin bath through a closed conveying channel after coming out of a kiln, if the temperature difference occurs in the conveying process of the molten glass, the next procedure is influenced, and therefore the molten glass needs to be uniformly heated in the process. In the prior art, the glass metal channel is heated directly by current, and the glass metal channel is connected with the current to heat the glass metal channel directly. The current entering the molten glass channel can lead to the acceleration of channel loss, the nonuniform current leads to nonuniform heating, and the corrosion of the channel leads to impure molten glass. At present, a glass liquid channel which can realize the uniform heating of the glass liquid channel and can not influence the quality of the glass liquid is lacking.

Disclosure of Invention

An object of the utility model is to provide an external heating formula glass liquid passageway to it is inhomogeneous to solve among the prior art glass liquid passageway heating, and the channel corrosion leads to the impure problem of glass liquid.

The utility model discloses a realize through following technical scheme:

an external heating type molten glass channel comprises a molten glass channel, wherein a heat insulation module is arranged on the molten glass channel, a plurality of groups of heating structures are arranged in the heat insulation module, each heating structure comprises a heating rod I, a heating rod II and a plurality of thermocouples, two ends of each heating rod I and two ends of each heating rod II extend out of a connecting wire of the heat insulation module, the heating rods I and the heating rods II are matched to wrap the molten glass channel, a plurality of groups of heating structures are uniformly distributed along the direction of a molten glass channel pipeline, and the spacing distances are equal; the thermocouples are uniformly distributed outside the molten glass channel; and the heating rod I and the heating rod II of each group of heating structure are independently electrified and are connected into an automatic control system together with a thermocouple.

Furthermore, the thermocouple comprises a thermocouple I, a thermocouple II and a thermocouple III, wherein the thermocouple I is arranged at the top of the outer surface of the glass liquid pipeline, and the thermocouple II and the thermocouple III are respectively positioned at two sides of the outer surface of the glass liquid pipeline.

Furtherly, the shape of heating rod I and heating rod II be semi-circular, II reverse concatenations of heating rod I and heating rod, II both ends of heating rod I and heating rod are equipped with the link, the link stretches out the heat preservation and is connected with the wire.

Furthermore, the distance between the heating rod I and the heating rod II is 25-80 mm, and the bending radius of the heating rod I and the heating rod II is 20-80 mm larger than the pipe diameter of the molten glass channel.

Furthermore, the heat preservation module is built by high-alumina heat-resistant bricks.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model adopts the matching mode of the heating rod and the thermocouple to realize the uniform heating of the glass liquid channel, and can realize the accurate control of the heating temperature of each section of the glass liquid channel so as to solve the problem of non-uniform heating of the heating device to the glass liquid pipeline; the utility model discloses a heating rod carries out the ohmic heating and replaces the direct ohmic heating to glass liquid passageway, has avoided the corruption to the passageway, increases glass liquid passageway life, reduce cost.

Drawings

FIG. 1 is a front sectional view of the present invention;

FIG. 2 is a left side sectional view of the present invention;

FIG. 3 is a top sectional view of the present invention;

fig. 4 is a schematic view of the shape of the heating rod i and the heating rod ii of the present invention.

In the figure: 1. heating a rod I; 2. a heat preservation module; 3. a heating rod II; 4. a thermocouple I; 5. a thermocouple II; 6. a thermocouple III; 7. a molten glass channel.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

Embodiment 1, as shown in fig. 1, an external heating molten glass channel 7 includes a molten glass channel 7, a heat preservation module 2 is disposed on the molten glass channel 7, a plurality of groups of heating structures are disposed in the heat preservation module 2, each heating structure includes a heating rod i 1, a heating rod ii 3 and a plurality of thermocouples, two ends of the heating rods i 1 and ii 3 extend out of the heat preservation module 2 to connect with a lead, the heating rods i 1 and ii 3 are matched to wrap the molten glass channel 7, as shown in fig. 2-3, a plurality of groups of heating structures are uniformly arranged along a pipeline direction of the molten glass channel 7, and the spacing distances are equal; the thermocouples are uniformly distributed outside the molten glass channel 7, and data parameters are provided for controlling the heating structure by monitoring the temperature of the three positions; the heating rods I1 and II 3 of each group of heating structures are independently electrified and are connected into the automatic control system together with the thermocouples, so that the functions of controlling the temperature of the molten glass channel 7 in sections and automatically adjusting the temperature are realized, the accurate constant temperature can be obtained, and the temperature can be automatically adjusted according to the requirements of the production process and the temperature curve chart.

Example 2, an external heating type molten glass channel 7, wherein a thermocouple comprises a thermocouple i 4, a thermocouple ii 5 and a thermocouple iii 6, the thermocouple i 4 is provided at the top of the outer surface of a molten glass pipe, and the thermocouple ii 5 and the thermocouple iii 6 are respectively provided at both sides of the outer surface of the molten glass pipe; as shown in fig. 4, the heating rod i 1 and the heating rod ii 3 are semicircular, and the heating rod i 1 and the heating rod ii 3 are reversely spliced, so that a pipeline is better wrapped, and the heating efficiency is improved; connecting ends are arranged at two ends of the heating rod I1 and the heating rod II 3, and the connecting ends extend out of the heat insulation layer to be connected with the conducting wires; the space between the heating rod I1 and the heating rod II 3 is 40 mm, the bending radius of the heating rod I1 and the heating rod II 3 is 40 mm larger than the pipe diameter of the molten glass channel 7, and the space and the radius are arranged to enable the structure to be more compact; the heat preservation module 2 is built by high-alumina heat-resistant bricks, and the high-alumina heat-resistant bricks have high thermal stability and good slag resistance; the rest is the same as in example 1.

The utility model discloses at the during operation, heat every heating structure circular telegram to access automated control system, by the temperature condition of each heating structure of thermocouple monitoring, and carry out the real-time feedback, automated control system regulates and control the electric current of heating rod according to each heating structure's real-time temperature, and then obtains accurate constant temperature.

Claims

1. An externally heated molten glass channel comprising a molten glass channel characterized by: the glass melt channel is provided with a heat insulation module (2), a plurality of groups of heating structures are arranged in the heat insulation module (2), each heating structure comprises a heating rod I (1), a heating rod II (3) and a plurality of thermocouples, two ends of each of the heating rods I (1) and II (3) extend out of the heat insulation module (2), and the heating rods I (1) and II (3) are matched with each other to wrap the glass melt channel; the thermocouples are uniformly distributed outside the molten glass channel.

2. An externally heated molten glass channel according to claim 1 wherein: the thermocouple include thermocouple I (4), thermocouple II (5) and thermocouple III (6), the top of glass liquid pipeline surface is located in thermocouple I (4), and thermocouple II (5) and thermocouple III (6) are located the both sides of glass liquid pipeline surface respectively.

3. An externally heated molten glass channel according to claim 1 wherein: the shape of heating rod I (1) and heating rod II (3) be semi-circular, reverse concatenation of heating rod I (1) and heating rod II (3), heating rod I (1) and heating rod II (3) both ends are equipped with the link, the link stretches out the heat preservation and is connected with the wire.

4. An externally heated molten glass channel according to claim 3 wherein: the distance between the heating rod I (1) and the heating rod II (3) is 25-80 mm, and the bending radius of the heating rod I (1) and the bending radius of the heating rod II (3) are larger than the pipe diameter of the glass liquid channel by 20-80 mm.

5. An externally heated molten glass channel according to claim 1 wherein: the heat preservation module (2) is built by high-alumina heat-resistant bricks.