Device and method for automatically discharging materials at bottom of base plate glass kiln

Abstract

The invention relates to the technical field of automatic unloading at the bottom of a substrate glass kiln, and discloses a device and a method for automatic unloading at the bottom of the substrate glass kiln, the device for automatic unloading at the bottom of the substrate glass kiln comprises a heating system, the heating system is directly installed under an unloading port at the bottom of the kiln, and the unloading port is connected with the heating system. The high-altitude operation requirement of operators is obviously reduced, the scalding risk possibly caused by direct operation of high-temperature molten glass is avoided, and the safety of the whole operation environment is improved; the heating system provided by the invention adopts a circular ring pipe design, and a plurality of flame nozzle openings are formed above the circular ring pipe at intervals, so that a larger area of the periphery of the discharge opening can be uniformly heated, and compared with local heating of a single oxyhydrogen gun, the temperature required for melting molten glass can be quickly reached, so that the operation time is greatly shortened, and the production efficiency is improved; in addition, by means of mixed combustion of natural gas and oxygen, higher heat efficiency is provided, and stability and controllability of flames are guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of glass preparation, and in particular relates to a device and method for automatic unloading of substrate glass from the bottom of a kiln. Background Art

[0002] In the production of substrate glass, the kiln is one of the most expensive and important core equipment, playing a key role in raw material melting, defoaming and clarification. The quality of raw material melting is closely related to the defects of glass products. The better the stability of the melting temperature, the better the volatility of melting defects, and the smaller the impact on the product. Due to the early heating and baking period of the kiln, there are many refractory residues in the kiln. If these residues cannot be discharged from the kiln in time before normal production, it will inevitably affect the quality of the subsequent products. Therefore, it is necessary to wash the kiln at a specific time and discharge the glass liquid in the kiln to ensure the quality of the subsequent products.

[0003] The original unloading system is to locally heat the unloading port at the bottom of the pool through the oxyhydrogen gun, which has reached the condensation temperature of the glass at the unloading port of the melting tank furnace, so that the glass liquid in the tank furnace can be discharged. The disadvantages of this method are: 1. The danger of high-altitude operation, because the unloading port at the bottom of the pool is a certain height from the ground, and the operator group is working on the platform looking down, which is not conducive to safety; 2. The operation time is long. The oxyhydrogen gun locally heats the glass liquid at the unloading port at the bottom of the pool. Since the flame spray volume of the oxyhydrogen gun is small, the operation time is long; 3. Poor safety. When using the oxyhydrogen gun to melt the glass liquid at the unloading port, the glass liquid melts instantly and has a high temperature, which will be dangerous to the operator. Summary of the invention

[0004] The purpose of the present invention is to overcome the above-mentioned problems and provide a device and method for automatic unloading of substrate glass furnace bottom, which can reduce the danger of high-altitude operations, while achieving uniform heating of glass liquid and improving work efficiency.

[0005] In order to achieve the above object, the present invention adopts the following technical solution: In a first aspect, the present invention provides a device for automatically unloading a substrate glass furnace pool bottom, comprising a heating system, wherein the heating system is located directly below a discharge port at the furnace pool bottom; The heating system comprises a circular tube, a plurality of flame nozzle openings are arranged at intervals above the circular tube, and the circular tube is connected with natural gas and oxygen pipelines.

[0006] A further improvement of the present invention is that the number of the flame nozzle openings is 8-10.

[0007] A further improvement of the present invention is that the flame nozzle openings are evenly distributed above the annular tube.

[0008] A further improvement of the present invention is that the heating system is located directly below the discharge port at the bottom of the kiln pool, 20-30 cm away from the discharge port at the bottom of the kiln pool.

[0009] A further improvement of the present invention is that the natural gas and oxygen pipelines are connected to a DCS flow control system, and the DCS flow control system is used to adjust the supply of natural gas and oxygen to control the combustion temperature of the heating system.

[0010] In a second aspect, the present invention also provides a method for automatically unloading substrates from the bottom of a glass kiln, comprising the following steps: S1, adjusting the supply of natural gas and oxygen according to the preset glass melting temperature to control the combustion temperature of the heating system; S2, when the combustion temperature of the heating system reaches and maintains the melting temperature of the glass, the glass liquid flows out from the discharge port; S3, when the glass liquid flows out from the discharge port, the supply of natural gas and oxygen is adjusted to maintain a stable heating effect until the glass liquid is discharged.

[0011] A further improvement of the present invention is that in said S1, the preset glass melting temperature is 1400-1600°C.

[0012] A further improvement of the present invention is that, in S1, the supply of natural gas and oxygen is monitored and adjusted in real time through a DCS flow control system.

[0013] A further improvement of the present invention is that in said S3, after the glass liquid is unloaded, the heating system is shut down through the DCS flow control system, and the site is cleaned up to prepare for the next unloading.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a device for automatic unloading of substrate glass furnace bottom. By directly installing the heating system just below the unloading port at the bottom of the furnace, the high-altitude operation requirements of operators are significantly reduced, the potential safety hazards caused by overlooking operations are reduced, and the safety of operators is effectively guaranteed. At the same time, the risk of scalding caused by direct operation of high-temperature molten glass is avoided, and the safety of the overall working environment is improved. The heating system of the present invention adopts a circular ring tube design, and a plurality of flame nozzle ports are arranged at intervals on the upper side. Such a layout can achieve uniform heating of a larger area around the unloading port. Compared with the local heating of a single oxyhydrogen gun, the temperature required for melting the molten glass can be reached more quickly, thereby greatly shortening the operation time and improving production efficiency. In addition, the mixed combustion of natural gas and oxygen not only provides higher thermal efficiency, but also ensures the stability and controllability of the flame, making the heating process more stable and efficient.

[0015] Furthermore, the number of flame nozzle openings is 8-10 and they are evenly distributed above the circular tube. Multiple flame nozzle openings can work simultaneously to provide more extensive and even heating around the discharge port at the bottom of the kiln pool. This distribution method helps to quickly increase the local temperature and allow the glass liquid to reach a molten state faster, thereby shortening the discharge time and improving production efficiency. The evenly distributed flame nozzle openings can ensure the uniformity of heat distribution during the heating process, reduce temperature gradients, and avoid local overheating or underheating.

[0016] Furthermore, the heating system is located directly below the discharge port at the bottom of the kiln pool, 20-30 cm away from the discharge port at the bottom of the kiln pool. Placing the heating system directly below the discharge port and maintaining an appropriate distance of 20-30 cm can ensure that heat is directly and efficiently transferred to the molten glass at the discharge port. This close-range heating method reduces heat loss, improves energy utilization efficiency, and accelerates the melting process of the molten glass.

[0017] The present invention also provides a method for automatically unloading substrate glass from the bottom of a green pool, by adjusting the supply of natural gas and oxygen according to a preset glass melting temperature to control the combustion temperature of the heating system. When the combustion temperature of the heating system reaches and maintains the melting temperature of the glass, the glass liquid flows out from the unloading port. During the process of the glass liquid flowing out of the unloading port, the supply of natural gas and oxygen is adjusted to maintain a stable heating effect until the glass liquid is unloaded. This method realizes automatic control of the entire process from adjusting the heating parameters to the automatic outflow of the glass liquid, simplifies the operating process, reduces the interference of human factors, and ensures the stability and reliability of the unloading process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings described herein are only for explanation purposes and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the various components in the drawings are only schematic, used to help understand the present invention, and are not intended to specifically limit the shapes and proportional dimensions of the various components of the present invention.

[0019] Figure 1 It is a top view of the automatic unloading device for the bottom of a glass furnace for substrates of the present invention; Figure 2 It is a front view of the automatic unloading device for the bottom of a glass furnace for substrates of the present invention; Figure 3 It is a schematic flow chart of the automatic unloading method for the bottom of a glass kiln tank for substrates of the present invention.

[0020] Among them: 1. Annular tube; 2. Flame nozzle; 3. Natural gas and oxygen pipelines. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0024] In the description of the embodiments of the present invention, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use, it is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0025] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The present invention is further described in detail below in conjunction with the accompanying drawings: like Figure 1 and Figure 2 As shown, the embodiment of the present invention provides a device for automatic unloading of substrate glass furnace bottom, comprising a circular ring pipe 1, a flame nozzle port 2 and a natural gas and oxygen pipeline 3; In the present embodiment, a heating system is arranged directly below the discharge port at the bottom of the kiln pool, and the heating system includes a circular pipe 1, and a plurality of flame nozzle openings 2 are arranged at intervals above the circular pipe 1. The circular pipe 1 is connected to a natural gas and oxygen pipeline 3, and natural gas and oxygen are introduced into the circular pipe 1 through the natural gas and oxygen pipelines 3, and then sprayed out through the flame nozzle opening 2. By placing the heating system directly below the discharge port, heat can directly act on the glass liquid, reducing heat loss and improving heating efficiency. At the same time, the uniform distribution of multiple flame nozzle openings 2 ensures wide coverage of the heating area and temperature consistency, avoids local overheating or underheating, and ensures the uniformity of glass liquid melting and quality stability.

[0028] In this embodiment, the number of flame nozzle openings 2 is 8-10 and they are evenly distributed above the circular tube 1. Multiple flame nozzle openings 2 can work simultaneously to provide more extensive and even heating around the discharge port at the bottom of the kiln pool. This distribution method helps to quickly increase the local temperature and make the glass liquid reach a molten state faster, thereby shortening the discharge time and improving production efficiency. The evenly distributed flame nozzle openings can ensure the uniformity of heat distribution during the heating process, reduce temperature gradients, and avoid local overheating or underheating.

[0029] In this embodiment, the heating system is located directly below the discharge port at the bottom of the kiln pool, 20-30 cm away from the discharge port at the bottom of the kiln pool. Placing the heating system directly below the discharge port and maintaining an appropriate distance of 20-30 cm can ensure that heat is directly and efficiently transferred to the molten glass at the discharge port. This close-range heating method reduces heat loss, improves energy utilization efficiency, and accelerates the melting process of the molten glass.

[0030] In this embodiment, the natural gas and oxygen pipelines 3 are connected to a DCS flow control system, which is used to adjust the supply of natural gas and oxygen to control the combustion temperature of the heating system. The DCS flow control system can accurately adjust the supply of natural gas and oxygen according to the preset glass melting temperature, ensuring that the heating system can maintain a stable combustion temperature and avoid glass liquid quality problems caused by temperature fluctuations; by accurately controlling the supply of natural gas and oxygen, the DCS flow control system can ensure that natural gas and oxygen are fully utilized, reducing energy waste. At the same time, the stable combustion temperature also accelerates the melting process of the glass liquid and improves the heating efficiency.

[0031] like Figure 3 As shown, the embodiment of the present invention also provides a method for automatically unloading the bottom of a glass furnace pool of a substrate, comprising the following steps: S1, adjusts the supply of natural gas and oxygen according to the preset glass melting temperature, and controls the combustion temperature of the heating system through the DCS flow control system; S2, when the combustion temperature of the heating system reaches and maintains the melting temperature of the glass, the glass liquid flows out from the discharge port; S3, when the glass liquid flows out from the discharge port, the supply of natural gas and oxygen is adjusted through the DCS flow control system to maintain a stable heating effect until the glass liquid is discharged.

[0032] Many embodiments and many applications beyond the examples provided will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of the present teachings should not be determined with reference to the above description, but rather with reference to the preceding claims and the full scope of equivalents to which such claims are entitled. For the purpose of comprehensiveness, all articles and references, including disclosures of patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended to be a disclaimer of such subject matter, nor should it be considered that the applicants did not consider such subject matter to be part of the disclosed inventive subject matter.

[0033] The above content is a further detailed description of the present invention. It cannot be determined that the specific implementation methods of the present invention are limited to these. For ordinary technicians in the technical field to which the present invention belongs, without departing from the concept of the present invention, they can also make several simple deductions or substitutions, which should be regarded as belonging to the protection scope of the present invention determined by the submitted claims.

Claims

1. A device for automatically unloading substrates from the bottom of a glass kiln, characterized in that: It includes a heating system, which is located directly below the discharge port at the bottom of the kiln pool; The heating system comprises a circular tube (1), a plurality of flame nozzle openings (2) are arranged at intervals above the circular tube (1), and the circular tube (1) is connected to natural gas and oxygen pipelines (3).

2. The device for automatic unloading of substrate glass furnace bottom according to claim 1 is characterized in that: The number of the flame nozzle openings (2) is 8-10.

3. The device for automatic unloading of substrate glass furnace bottom according to claim 1, characterized in that: The flame nozzle openings (2) are evenly distributed above the circular ring tube (1).

4. The device for automatic unloading of substrate glass furnace bottom according to claim 1, characterized in that: The heating system is located just below the discharge port at the bottom of the kiln pool, 20-30 cm away from the discharge port at the bottom of the kiln pool.

5. The device for automatic unloading of substrate glass furnace bottom according to claim 1, characterized in that: The natural gas and oxygen pipelines (3) are connected to a DCS flow control system, and the DCS flow control system is used to adjust the supply of natural gas and oxygen to control the combustion temperature of the heating system.

6. A method for automatic unloading of substrate glass furnace bottom, characterized in that: The following steps are involved: S1, adjusting the supply of natural gas and oxygen according to the preset glass melting temperature to control the combustion temperature of the heating system; S2, when the combustion temperature of the heating system reaches and maintains the melting temperature of the glass, the glass liquid flows out from the discharge port; S3, when the glass liquid flows out from the discharge port, the supply of natural gas and oxygen is adjusted to maintain a stable heating effect until the glass liquid is discharged.

7. The method for automatic unloading of substrate glass furnace bottom according to claim 6, characterized in that: In the above-mentioned S1, the preset glass melting temperature is 1400-1600°C.

8. The method for automatic unloading of substrate glass furnace bottom according to claim 6, characterized in that: In S1, the supply of natural gas and oxygen is monitored and adjusted in real time through the DCS flow control system.

9. The method for automatic unloading of substrate glass furnace bottom according to claim 6, characterized in that: In S3, after the glass liquid is unloaded, the heating system is shut down through the DCS flow control system, and the site is cleaned up to prepare for the next unloading.

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