Total-oxygen float ultra-white glass melting furnace and feeding pool thereof

Abstract

The utility model discloses an all-oxygen float ultra-white glass melting furnace and a feeding pool thereof, the all-oxygen float ultra-white glass melting furnace comprises a pool body, a feeding port and an L-shaped hanging wall, the feeding port is positioned at one end of the pool body, and the L-shaped hanging wall stretches across the upper part of the pool body and is positioned above the feeding port; the nose area angle of the L-shaped hanging wall is 45 degrees, and the distance value B between the L-shaped hanging wall and the center of the front flue ranges from 2000 mm to 4000 mm. According to the utility model, the nose area angle of the L-shaped hanging wall is accurately set to be 45 degrees, so that not only is the structural layout in the melting furnace optimized, but also the melting speed of the ultra-white glass batch in the feeding pool is ensured to be optimal. The adjustment of the angle promotes the uniform melting of the molten glass, and the production efficiency is effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of glass melting furnace technology, and in particular relates to a full oxygen float ultra-white glass melting furnace and its feeding tank. Background Technology

[0002] Ultra-clear glass, with its exceptional transparency and purity, is widely used in high-end architecture, art production, precision optical instruments, and many other fields. Its unique characteristic lies in the strict control of iron content in its composition to below 150 ppm, ensuring high light transmittance and low iron color effect. Currently, the mainstream melting processes for producing ultra-clear float glass fall into two main categories: one is a kiln-type production line using advanced oxy-fuel combustion technology, and the other is the traditional horizontal flame kiln-type production line that has been used for a long time.

[0003] Oxygen-fired technology, with its high efficiency and environmental friendliness, can theoretically significantly improve the melting efficiency of furnaces and reduce energy consumption. However, despite its many advantages, its adoption in practice is limited by factors such as high equipment investment, high technical barriers, and operational complexity. Therefore, in the domestic market, traditional horizontal flame furnaces remain the mainstream choice for producing high-end ultra-clear float glass, occupying a large market share.

[0004] However, both oxy-fuel combustion furnaces and traditional cross-flame furnaces face challenges such as limited melting capacity and high energy consumption in individual furnaces. Compared with international advanced levels, my country still lags behind in glass melting technology, resulting in the continued reliance on imports for some high-end ultra-clear glass products, which undoubtedly restricts the rapid development of related domestic industries.

[0005] The melting system of a float glass melting furnace typically consists of a melting section and a refining section, with the upper part being the flame space and the lower part being the furnace pool. The flame space is filled with hot flame gases supplied by a heat source. These flame gases not only use their own heat to melt the batch but also radiate heat to the molten glass, furnace walls, and furnace roof. Therefore, the structural design of the flame space has a crucial impact on the efficiency and quality of glass melting.

[0006] In oxy-fuel float glass melting furnaces, the design of the flame space is crucial to the overall thermal efficiency and product quality of the furnace. Oxy-fuel combustion technology uses pure oxygen instead of air to burn fuel during the glass melting process. This avoids the introduction of large amounts of nitrogen from the air, accelerates combustion, ensures complete combustion of the fuel, and reduces flue gas emissions and NOx formation, thus achieving energy conservation and emission reduction. However, an improperly designed flame space can lead to a series of problems.

[0007] In practical applications, some companies using oxy-fuel combustion technology to produce glass have encountered problems such as low thermal efficiency and high pollutant emissions due to improper flame space design. These problems not only affect glass production efficiency and product quality but also increase the company's operating costs and environmental burden. Utility Model Content

[0008] To address the aforementioned problems, the purpose of this invention is to provide an oxygen-float ultra-white glass melting furnace and its feeding tank, which has low heat consumption and high melting rate.

[0009] To achieve the above objectives, the technical solution of this utility model is as follows:

[0010] A feeding tank for an oxygen-float ultra-white glass melting furnace includes a tank body, a feeding port, and an L-shaped hanging wall. The feeding port is located at one end of the tank body, and the L-shaped hanging wall spans the upper part of the tank body and is located above the feeding port.

[0011] The nose angle of the L-shaped hanging wall is 45°, and the distance B between the L-shaped hanging wall and the center of the front flue is 2000-4000mm.

[0012] According to one embodiment of the present invention, the length A of the feeding port is 1000-3000mm, and the length C of the pool body is 3000-7000mm.

[0013] According to one embodiment of the present invention, the lower front end of the L-shaped hanging wall is provided with an extended sealing structure.

[0014] According to one embodiment of the present invention, the extended sealing structure is a suspended arch.

[0015] Based on the same concept, this utility model also provides an oxygen-float ultra-white glass melting furnace, including the feeding tank for the oxygen-float ultra-white glass melting furnace described in any of the above embodiments.

[0016] Because of the adoption of the above technical solution, this utility model has the following advantages and positive effects compared with the prior art:

[0017] This invention precisely sets the nose angle of the L-shaped hanging wall to 45°. This design not only optimizes the internal structural layout of the melting furnace but also ensures that the melting speed of the ultra-clear glass batch in the feeding pool reaches its optimal level. This angle adjustment promotes uniform melting of the molten glass, effectively improving production efficiency.

[0018] By eliminating the original L-shaped cooling water tanks in front of the wall-mounted furnace and above the feeding tank, and replacing them with a suspended arch for sealing, heat loss from the feeding tank was significantly reduced. This change not only improved the thermal efficiency of the furnace but also further reduced energy consumption by minimizing heat loss.

[0019] The optimized design of the L-shaped hanging wall not only improves the melting process but also significantly enhances the overall safety of the hanging wall structure, effectively resisting deformation and stress under high-temperature conditions, thereby extending the overall service life of the melting furnace.

[0020] By precisely setting the distance B between the L-shaped hanging wall and the center of the front flue to 2000-4000mm, the length A of the feeding port to 1000-3000mm, and the length C of the tank to 3000-7000mm, the optimization of these dimensional parameters ensures a more rational flow of molten glass in the melting furnace. In particular, by increasing the length of the feeding tank, the physicochemical reaction of the glass batch can be carried out more fully, significantly improving the melting rate and helping to quickly remove bubbles, thereby improving the glass quality.

[0021] Given the excellent heat transmittance of ultra-clear glass, the optimized design reduces the temperature difference between the liquid surface and the bottom of the furnace, thereby weakening the convection of the molten glass in the depth direction and enhancing the horizontal flow velocity. This makes the residence time of the molten glass in the melting furnace more efficient and shortens the bubble removal time. These changes collectively promote high efficiency and energy saving in the melting process, further reducing heat consumption.

[0022] In summary, this utility model achieves efficient melting, high-quality output, and significant energy reduction in the production process of ultra-clear glass through optimized L-shaped hanging wall angle, elimination of cooling water tank and adoption of hanging flat arch sealing, and reasonable dimensional parameter design. It fully demonstrates the thermal efficiency and superiority of the all-oxygen float ultra-clear glass melting furnace. Attached Figure Description

[0023] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0024] Figure 1 A longitudinal sectional view of the feeding tank of the all-oxygen flotation ultra-white glass melting furnace in this application embodiment;

[0025] Figure 2 A plan view of the feeding tank of the oxygen flotation ultra-white glass melting furnace according to an embodiment of this application.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Tank body; 2. Feed inlet; 3. L-shaped hanging wall; 4. Front flue; 5. Hanging arch. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise ratios, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0029] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0030] Example 1

[0031] See Figures 1 to 2 The core of this utility model is to provide a feeding tank for an oxygen-float ultra-white glass melting furnace, including a tank body 1, a feeding port 2 and an L-shaped hanging wall 3. The feeding port 2 is located at one end of the tank body 1, and the L-shaped hanging wall 3 spans the upper part of the tank body 1 and is located above the feeding port 2.

[0032] The nose angle of the L-shaped hanging wall 3 is 45°, and the lower front end of the L-shaped hanging wall 3 is provided with an extended sealing structure. In this embodiment, the extended sealing structure is a hanging flat arch 5.

[0033] The distance B between the center of the L-shaped hanging wall 3 and the center of the front flue 4 is 2000-4000mm. The length A of the feeding port 2 is 1000-3000mm, and the length C of the pool body 1 is 3000-7000mm.

[0034] This invention precisely sets the nose angle of the L-shaped hanging wall 3 to 45°. This design not only optimizes the internal structural layout of the melting furnace but also ensures that the melting speed of the ultra-clear glass batch material in the feeding pool reaches its optimal level. This angle adjustment promotes the uniform melting of the molten glass, effectively improving production efficiency.

[0035] By eliminating the original cooling water tanks in front of the L-shaped hanging wall 3 and above the feeding pool, and replacing them with a hanging flat arch 5 for sealing, the heat loss of the feeding pool is greatly reduced. This change not only improves the thermal efficiency of the melting furnace, but also further reduces energy consumption by reducing heat loss.

[0036] The optimized design of the L-shaped hanging wall 3 not only optimizes the melting process, but also significantly enhances the overall safety of the hanging wall structure, effectively resisting deformation and stress under high temperature environment, thereby extending the overall service life of the melting furnace.

[0037] By precisely setting the distance B between the center of the L-shaped hanging wall 3 and the center of the front flue 4 to 2000-4000mm, the length A of the feeding port 2 to 1000-3000mm, and the length C of the pool body 1 to 3000-7000mm, the optimization of these dimensional parameters ensures a more rational flow of molten glass in the melting furnace. In particular, after increasing the length of the feeding pool, the physicochemical reaction of the glass batch can be carried out more fully, significantly improving the melting rate and helping to quickly remove bubbles, thereby improving the glass quality.

[0038] Given the excellent heat transmittance of ultra-clear glass, the optimized design reduces the temperature difference between the liquid surface and the bottom of the furnace, thereby weakening the convection of the molten glass in the depth direction and enhancing the horizontal flow velocity. This makes the residence time of the molten glass in the melting furnace more efficient and shortens the bubble removal time. These changes collectively promote high efficiency and energy saving in the melting process, further reducing heat consumption.

[0039] In summary, this utility model achieves efficient melting, high-quality output, and significant energy reduction in the production process of ultra-clear glass through the optimization of the angle of the L-shaped hanging wall 3, the elimination of the cooling water tank and the use of the hanging flat arch 5 for sealing, and the design of reasonable dimensional parameters. It fully demonstrates the thermal efficiency and superiority of the all-oxygen float ultra-clear glass melting furnace.

[0040] Example 2

[0041] Another core aspect of this invention is to provide an oxygen-float ultra-white glass melting furnace, including the feeding tank for the oxygen-float ultra-white glass melting furnace described in Example 1.

[0042] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they shall still fall within the protection scope of the present invention.

Claims

1. A feeding tank for an oxygen flotation ultra-white glass melting furnace, characterized in that, It includes a pool body, a feeding port, and an L-shaped hanging wall. The feeding port is located at one end of the pool body, and the L-shaped hanging wall spans the upper part of the pool body and is located above the feeding port. The nose angle of the L-shaped hanging wall is 45°, and the distance B between the L-shaped hanging wall and the center of the front flue is 2000-4000mm.

2. The feeding tank for an oxygen flotation ultra-white glass melting furnace according to claim 1, characterized in that, The length A of the feeding port is 1000-3000mm, and the length C of the pool body is 3000-7000mm.

3. The feeding tank for an oxygen flotation ultra-white glass melting furnace according to claim 1, characterized in that, The lower front end of the L-shaped hanging wall is provided with an extended sealing structure.

4. The feeding tank for an oxygen flotation ultra-white glass melting furnace according to claim 3, characterized in that, The extended sealing structure is a suspended arch.

5. A melting furnace for ultra-white glass using the all-oxygen flotation method, characterized in that, Includes the feeding tank for an oxygen-float ultra-white glass melting furnace as described in any one of claims 1 to 4.

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