CN-122010389-A - Melting furnace glass liquid level monitoring device

Abstract

The invention relates to the technical field of glass production, in particular to a melting furnace glass liquid level monitoring device. The glass liquid level monitoring device for the melting furnace comprises a monitoring component, a filtering structure and a filtering structure, wherein the monitoring component comprises a shooting structure, the shooting structure is arranged on the outer side of the melting furnace, the shooting end of the shooting structure is arranged opposite to an observation hole of the melting furnace, the shooting structure is used for acquiring a marking brick in the melting furnace and an image formed on the glass liquid level, the filtering structure is arranged between the shooting structure and the observation hole, and the filtering structure is arranged opposite to the shooting end of the shooting structure. The light filtering structure effectively solves the problem of light interference caused by strong light reflection in a high-temperature environment in the kiln, avoids the phenomenon of image distortion, and thereby remarkably improves the precision of liquid level detection.

Inventors

• XU YANG
• WANG JIAN
• JIANG BIXUAN
• ZHANG YUZHU
• WANG YIYUAN
• WANG YING
• Qiu Yinrui
• ZHANG LIPING

Assignees

• 秦皇岛玻璃工业研究设计院有限公司

Dates

Publication Date

20260512

Application Date

20260107

Claims (10)

1. 1. A furnace glass level monitoring device, comprising: The monitoring assembly comprises a shooting structure (1), wherein the shooting structure (1) is arranged on the outer side of the melting furnace (2), the shooting end of the shooting structure (1) is opposite to an observation hole (3) of the melting furnace (2), and the shooting structure (1) is used for acquiring a marking brick in the melting furnace (2) and an image formed on the glass liquid surface; the optical filtering structure (4), the optical filtering structure (4) is arranged between the shooting structure (1) and the observation hole (3), and the optical filtering structure (4) and the shooting end of the shooting structure (1) are oppositely arranged.
2. 2. The device for monitoring the glass liquid level of a melting furnace according to claim 1, wherein a purging component (5) is arranged on the outer side of the melting furnace (2), the purging component (5) is positioned on one side of the observation hole (3), the purging component (5) is provided with a blowing opening, the blowing opening is used for blowing air towards the observation hole (3) to the extending direction outside the melting furnace (2) so as to form an air curtain for blocking the gas of the melting furnace (2), and the blowing direction of the blowing opening is mutually perpendicular to the extending direction of the observation hole (3).
3. 3. The apparatus according to claim 2, characterized in that the purge assembly (5) is connected to a compressed air line (6) so that the blowing port blows compressed air out.
4. 4. The device for monitoring the glass liquid level of a melting furnace according to claim 1, further comprising a heat insulation structure (7), wherein the heat insulation structure (7) is arranged on the outer side of the melting furnace (2), the heat insulation structure (7) is provided with a containing cavity, the monitoring component is arranged in the containing cavity, one side of the heat insulation structure (7) facing an observation hole (3) of the melting furnace (2) is a transparent observation surface (701), and the light filtering structure (4) is arranged on the observation surface (701).
5. 5. The device for monitoring the glass liquid level of the melting furnace according to claim 4, wherein the heat insulation structure (7) is internally provided with a cooling structure, the cooling structure comprises a heat exchange pipeline (8), a cooling medium is arranged in the heat exchange pipeline (8), and two ends of the heat exchange pipeline (8) are respectively communicated with a heat exchange system.
6. 6. The device according to any one of claims 1 to 5, characterized in that the monitoring assembly further comprises a guiding structure and a movable member, the shooting structure (1) being fixedly connected to the movable member, the movable member being in movable engagement with the guiding structure to provide guiding for the movement of the shooting structure (1) such that the shooting structure (1) is close to or far from the filtering structure (4).
7. 7. The device for monitoring the glass liquid level of a melting furnace according to claim 6, wherein the movable part is a sliding plate (10), the guiding structure is a screw rod (9), the sliding plate (10) is provided with a sliding block (11) in threaded connection with the screw rod (9), and the shooting structure (1) is fixedly arranged on the end face of the sliding plate (10) far away from the screw rod (9).
8. 8. The apparatus according to claim 6, characterized in that the bottom of the monitoring assembly is provided with a support assembly (12), the support assembly (12) being adapted to support the monitoring assembly such that the monitoring assembly is in the same plane as the viewing aperture (3).
9. 9. The apparatus according to claim 8, wherein the support assembly (12) comprises a bracket (1201) and a cradle head (1202), the bracket (1201) is fixedly connected to the cradle head (1202), the bracket (1201) is placed on the ground, and the cradle head (1202) is connected to the monitoring assembly.
10. 10. The apparatus according to any one of claims 7 to 9, further comprising a control system (13), the control system (13) comprising a controller (1301) and a human-machine interaction interface (1302), the controller (1301) being connected to the shooting structure (1) and the human-machine interaction interface (1302), respectively.

Description

Melting furnace glass liquid level monitoring device Technical Field The invention relates to the technical field of glass production, in particular to a melting furnace glass liquid level monitoring device. Background In the float glass production process, the stable glass liquid level in a float glass melting furnace is a core precondition for guaranteeing production safety and product quality. The excessively high glass liquid level can cause the overflow of the glass liquid out of the melting furnace, cause high-temperature safety accidents and waste of raw materials, and the excessively low liquid level can damage the thermodynamic equilibrium in the melting furnace, so that the glass liquid is unevenly melted, further cause quality defects such as thickness deviation, bubbles, stones and the like of a glass finished product, and seriously influence the stability of subsequent processing procedures and the qualification rate of a final product. In the prior art, an image type liquid level meter is generally used for monitoring the liquid level of glass liquid, and the image type liquid level meter is used for capturing the reflection of a mark hole on the surface of the glass liquid by using a camera through arranging the mark hole at a specific position of a melting furnace, so that the liquid level monitoring is realized based on the corresponding relation between the reflection position and the actual liquid level. However, the image type liquid level meter still has obvious defects that the image distortion problem exists due to the interference of strong light reflection light rays in the high-temperature environment in the kiln, so that the liquid level detection precision is insufficient. Disclosure of Invention The invention provides a melting furnace glass liquid level monitoring device, which aims to solve the problem that image distortion exists due to light interference of strong light reflection in a high-temperature environment in a kiln, so that the liquid level detection precision is insufficient. The invention provides a melting furnace glass liquid level monitoring device, which comprises: The monitoring assembly comprises a shooting structure, the shooting structure is arranged on the outer side of the melting furnace, the shooting end of the shooting structure is arranged opposite to the observation hole of the melting furnace, and the shooting structure is used for acquiring the marking bricks in the melting furnace and the images formed on the glass liquid surface of the marking bricks; the optical filtering structure is arranged between the shooting structure and the observation hole, and the optical filtering structure is arranged opposite to the shooting end of the shooting structure. The beneficial effects are that: Through setting up the optical filtering structure, effectively solved the light interference problem that the highlight reflection caused under the high temperature environment in the kiln, avoided the image distortion phenomenon to show the precision that has improved liquid level detection. The use of the optical filtering structure also prolongs the service life of monitoring equipment such as a camera, reduces equipment damage and maintenance frequency caused by strong light irradiation, and further reduces production cost. In an alternative embodiment, a blowing component is arranged on the outer side of the melting furnace and is positioned on one side of the observation hole, the blowing component is provided with a blowing opening, the blowing opening is used for blowing air towards the observation hole to the extending direction outside the melting furnace so as to form an air curtain for blocking high-temperature gas of the melting furnace, and the blowing direction of the blowing opening is mutually perpendicular to the extending direction of the observation hole. The beneficial effects are that: through setting up the subassembly that sweeps, the subassembly forms the air curtain through blowing, and flame and air current in the air curtain can blockking the melting furnace, avoids flame and air current disturbance in the kiln can lead to shooting structure formation of image to blur, is favorable to shooting structure acquisition clear image. In an alternative embodiment, the purge assembly is connected to a compressed air line such that the air blast port blows compressed air. The beneficial effects are that: The compressed air pipeline can ensure that the purging component has continuous and stable airflow sources and ensures the stable formation of an air curtain, thereby continuously and effectively blocking high-temperature gas of the melting furnace and ensuring the definition of the image acquired by the shooting structure. In an alternative embodiment, the furnace further comprises a heat insulation structure, wherein the heat insulation structure is arranged on the outer side of the furnace, the heat insulation structure is provided with a co