Small glass melting furnace suitable for co-combustion of hydrogen and traditional fuel

Abstract

The invention relates to the technical field of production equipment of glass melting furnaces, in particular to a glass melting furnace small furnace suitable for mixed combustion of hydrogen and traditional fuel, which comprises a small furnace body, a side combustion spray gun brick, a bottom insertion spray gun brick, a bottom combustion spray gun brick and a hook brick, one of the left side and the right side of the small furnace body is communicated with the melting furnace flame space, and the other side is communicated with the heat storage chamber; side-burning spray gun bricks are fixedly arranged on the side walls of the front side and the rear side of the small furnace body, side-burning spray guns are detachably arranged in the side-burning spray gun bricks, and the side-burning spray guns face a furnace cavity of the small furnace body or a melting furnace flame space. At least one bottom-inserted spray gun brick is fixedly arranged at the bottom of the small furnace body; a bottom-inserted spray gun is detachably arranged in the bottom-inserted spray gun brick; at least one bottom burning spray gun brick is fixedly arranged at the bottom of the small furnace body and is fixedly arranged in the hook brick; according to the invention, the low-carbon transformation of the glass industry is facilitated, the energy utilization efficiency of glass production is improved, the environmental pollution is reduced, and the method has remarkable economic and social benefits.

Description

Technical Field

[0001] This invention relates to the field of glass melting furnace production equipment technology, specifically to a small glass melting furnace suitable for co-firing hydrogen with conventional fuels. Background Technology

[0002] Glass melting furnaces are key pieces of equipment in the glass production process. Their main function is to heat glass raw materials to a molten state for subsequent shaping and processing. Traditional glass melting furnaces mostly use fossil fuels such as natural gas and fuel oil as energy sources. The combustion of these fossil fuels produces large amounts of carbon dioxide and other pollutants, placing significant pressure on the environment.

[0003] In recent years, hydrogen has gradually gained attention as a clean energy source. Hydrogen combustion produces only water and almost no carbon dioxide, making it considered an important alternative energy source for achieving low-carbon or even zero-carbon emissions in the future. However, the combustion characteristics of hydrogen differ significantly from those of traditional fossil fuels; for example, hydrogen burns rapidly, with a short flame and high temperature. These characteristics present numerous technical challenges to the direct application of hydrogen in traditional glass melting furnaces. For instance, the combustion systems of traditional melting furnaces (such as lance arrangement and combustion chamber design) are designed for fossil fuels and cannot be directly adapted to hydrogen combustion.

[0004] In practical applications, due to limitations in hydrogen supply costs and infrastructure, completely replacing traditional fuels with hydrogen is difficult to achieve in the short term. Therefore, the co-combustion of hydrogen with traditional fuels has become a realistic option. However, existing melting furnace structures struggle to achieve efficient co-combustion of hydrogen and traditional fuels, resulting in low combustion efficiency, poor combustion stability, and difficulty in flexibly adjusting fuel combinations according to actual production needs. These problems restrict the glass industry's low-carbon transformation and also affect the production flexibility and economics of enterprises. Therefore, developing a glass melting furnace structure capable of adapting to the co-combustion of hydrogen and traditional fuels has become a pressing technical challenge for the glass industry. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a small glass melting furnace suitable for co-firing hydrogen with conventional fuels.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] A small glass melting furnace suitable for co-firing hydrogen and traditional fuels includes: a furnace body, side-fired spray lance bricks, bottom-inserted spray lance bricks, bottom-fired spray lance bricks, and hook bricks;

[0008] One side of the small furnace body is connected to the furnace flame space, and the other side is connected to the regenerator.

[0009] The side wall of the front and back of the small furnace body is fixedly provided with a side-burning lance brick, and a side-burning lance is detachably arranged in the side-burning lance brick, and the side-burning lance faces the furnace cavity or the melting furnace flame space of the small furnace body;

[0010] The bottom of the small furnace body is fixedly provided with at least one bottom-inserted lance brick, and a bottom-inserted lance is detachably arranged in the bottom-inserted lance brick, and the bottom-inserted lance faces the furnace cavity or the melting furnace flame space of the small furnace body;

[0011] One side of the bottom of the small furnace body is fixedly provided with a hook brick, and the hook brick is fixed to the breast wall supporting plate steel structure;

[0012] The bottom-burning lance brick is fixedly arranged in the hook brick, and a bottom-burning lance is detachably arranged in the bottom-burning lance brick, and the bottom-burning lance faces the melting furnace flame space.

[0013] Further, the lance of the side-burning lance brick and the lance of the side-burning lance brick on the opposite side have an included angle of 30°-70°.

[0014] Further, the lance of the bottom-inserted lance brick and the bottom wall of the small furnace body have an included angle of 40°-90°.

[0015] Further, the lance of the bottom-burning lance brick and the bottom wall of the small furnace body have an included angle of 0°-20°.

[0016] Further, the connection between the side-burning lance brick, the bottom-inserted lance brick, the bottom-burning lance brick and the small furnace body is provided with a sealing element.

[0017] The present application effectively solves the problems of low combustion efficiency, high carbon emission and poor fuel adaptability in the combustion process of the existing glass melting furnace, provides an efficient, flexible and reliable solution for the low-carbon transformation of the glass melting furnace, helps to improve the energy utilization efficiency of glass production and reduce environmental pollution, and has significant economic and social benefits. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic view of the side view of the cross-sectional structure of the present application;

[0019] Figure 2 is a schematic view of the top view of the cross-sectional structure of the present application;

[0020] The reference signs in the drawings are:

[0021] 1, small furnace body; 2, side-burning lance brick; 3, bottom-inserted lance brick; 4, bottom-burning lance brick; 5, hook brick; 6, melting furnace flame space; 7, regenerator; 8, small furnace bottom hook brick. DETAILED DESCRIPTION

[0022] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0023] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0024] The present application will be further described below in combination with the drawings and specific embodiments, but not as a limitation of the present application.

[0025] Embodiments

[0026] The present embodiment provides a small furnace suitable for mixed combustion of hydrogen and traditional fuel for a glass melting furnace, comprising: a small furnace body 1, a side-burning lance brick 2, a bottom-inserted lance brick 3, a bottom-burning lance brick 4, and a hook brick 5.

[0027] Among them, one side of the left and right sides of the small furnace body 1 is in communication with the melting furnace flame space 6, and the other side of the left and right sides of the small furnace body 1 is in communication with the regenerator 7; the side walls of the front and rear sides of the small furnace body 1 are fixedly provided with the side-burning lance brick 2, the inside of the side-burning lance brick 2 is detachably provided with a side-burning lance, and the lance of the side-burning lance is directed to the furnace cavity of the small furnace body 1 or the melting furnace flame space 6; the arrangement of the side-burning lance brick 2 enables traditional gaseous fossil fuels such as natural gas to be sprayed into the furnace cavity through the side-burning lance, mixed with combustion air and burned to provide the required heat for the glass melting furnace; through the detachable design, the side-burning lance can be easily replaced and maintained, ensuring the stable operation of the combustion system.

[0028] The bottom of the small furnace body 1 is fixedly provided with at least one bottom-inserted lance brick 3, the inside of the bottom-inserted lance brick 3 is detachably provided with a bottom-inserted lance, and the lance of the bottom-inserted lance is directed to the furnace cavity of the small furnace body 1 or the melting furnace flame space 6; the arrangement of the bottom-inserted lance brick 3 is used to spray fuel oil into the furnace cavity, and the lance thereof is directed to the furnace cavity, which can make the fuel oil fully mixed with the combustion air to achieve stable combustion; also adopting a detachable design, the bottom-inserted lance can be easily replaced and maintained, improving the flexibility and reliability of the combustion system.

[0029] The bottom side of the small furnace body 1 is also fixedly provided with a hook brick 5, which is fixedly arranged on the breast wall supporting plate steel structure; the bottom combustion lance bricks 4 are fixedly arranged in the hook brick 5, and there are four bottom combustion lance bricks arranged in the hook brick 5; the inside of the bottom combustion lance brick 4 is detachably provided with a bottom combustion lance, and the lance of the bottom combustion lance faces the smelting furnace flame space 6; the bottom combustion lance brick 4 is arranged to spray hydrogen into the smelting furnace flame space 6, and the lance thereof faces the smelting furnace flame space 6, which can fully adapt to the characteristics of fast hydrogen combustion speed and short flame, improve the combustion efficiency of hydrogen, and at the same time avoid the adverse effects on the glass melt in the smelting furnace flame space 6; the bottom combustion lance brick 4 and the bottom insertion lance brick 3 are fixedly provided with a small furnace bottom hook brick 8.

[0030] Further, the glass smelting furnace small furnace further comprises a regenerator 7, which is also fixedly provided with a combustion-supporting air system, the combustion-supporting air system comprising a fan, an air pipe and a heat storage device and the like components; the fan sucks external air and delivers it to the heat storage device in the regenerator 7 through the air pipe for preheating; the preheated combustion-supporting air enters the furnace cavity of the small furnace body 1 through the communication port between the small furnace body 1 and the regenerator 7, mixes with the fuel injected by each fuel lance and then burns; by adopting the regenerative combustion-supporting air system, the temperature of the combustion-supporting air can be effectively improved, thereby improving the combustion efficiency of the fuel, reducing energy consumption and reducing the emission of pollutants.

[0031] Further, the lance of the side combustion lance brick 2 and the lance of the side combustion lance brick 2 on the opposite side have an included angle of 45°; this angle is optimized to enable the fuel to fully mix with the combustion-supporting air and improve the combustion efficiency. Similarly, the lance of the bottom insertion lance brick 3 and the bottom wall of the small furnace body 1 have an included angle of 70°, and the lance of the bottom combustion lance brick 4 and the bottom wall of the small furnace body 1 also have an included angle of 10°; the setting of these angles can ensure that the fuel fully mixes with the combustion-supporting air after entering the furnace cavity, realize stable combustion, and at the same time avoid problems such as local overheating or incomplete combustion.

[0032] Further, the connection between the side combustion lance brick 2, the bottom insertion lance brick 3 and the bottom combustion lance brick 4 and the small furnace body 1 is provided with a sealing element; these sealing elements are made of high-temperature-resistant and corrosion-resistant materials, which can effectively prevent the leakage of fuel gas and combustion-supporting air at the connection, improve the sealing performance of the system, reduce energy waste, and at the same time avoid safety accidents caused by gas leakage.

[0033] In use, according to actual production needs and fuel supply, one of hydrogen, natural gas or fuel oil is selected for single use, or any two or three of them are selected for mixed combustion, combustion-supporting wind enters the furnace cavity of the small furnace body 1 through the regenerator 7, mixes with the fuel injected by the fuel injection lances in the side-burning lance brick 2, the bottom-insert lance brick 3 and the bottom-burning lance brick 4, and then combustion reaction occurs, high-temperature flue gas generated by combustion enters the melting furnace flame space 6 through the communication port between the small furnace body 1 and the melting furnace flame space 6, provides the required heat for the melting process of the glass melting furnace, improves the combustion efficiency, reduces carbon emissions, and at the same time meets the process requirements of glass production

[0034] In summary, the present application effectively solves the problems of low combustion efficiency, high carbon emissions and poor fuel adaptability in the combustion process of the existing glass melting furnace, and provides an efficient, flexible and reliable solution for the low-carbon transformation of the glass melting furnace, which helps to improve the energy utilization efficiency of glass production, reduce environmental pollution, and has significant economic and social benefits.

[0035] The above of the present application are only the preferred embodiments of the present application, and do not limit the implementation and protection scope of the present application, and those skilled in the art should be able to realize that any equivalent replacement and obvious change made by applying the content of the present application should be included in the protection scope of the present application.

Claims

1. A glass melting furnace burner adapted for co-firing of hydrogen and conventional fuel, characterized in that, The utility model relates to a small stove body (1), side-burning lance brick (2), bottom insertion lance brick (3), bottom-burning lance brick (4) and hook brick (5). One side of the small stove body (1) is communicated with the melting furnace flame space (6), and the other side of the small stove body (1) is communicated with the regenerator (7). The side wall of the front and rear sides of the small stove body (1) is fixedly provided with the side-burning lance brick (2), the inside of the side-burning lance brick (2) is detachably provided with a side-burning lance, and the lance of the side-burning lance is directed to the stove cavity of the small stove body (1) or the melting furnace flame space (6). The bottom of the small stove body (1) is fixedly provided with at least one bottom insertion lance brick (3), the inside of the bottom insertion lance brick (3) is detachably provided with a bottom insertion lance, and the lance of the bottom insertion lance is directed to the stove cavity of the small stove body (1) or the melting furnace flame space (6). One side of the bottom of the small stove body (1) is also fixedly provided with the hook brick (5), and the hook brick (5) is fixedly arranged on the breast wall supporting plate steel structure. The bottom-burning lance brick (4) is fixedly arranged in the hook brick (5), the inside of the bottom-burning lance brick (4) is detachably provided with a bottom-burning lance, and the lance of the bottom-burning lance is directed to the melting furnace flame space (6). The lance of the side-burning lance brick (2) and the lance of the side-burning lance brick (2) on the opposite side have an included angle of 30-70 degrees.

2. A glass melter burner as defined in claim 1, wherein The lance of the bottom insertion lance brick (3) and the bottom wall of the small stove body (1) have an included angle of 40-90 degrees.

3. A glass melter burner as defined in claim 1, wherein, The lance of the bottom-burning lance brick (4) and the bottom wall of the small stove body (1) have an included angle of 0-20 degrees.

4. A glass melter burner as defined in claim 1, wherein The connection between the side-burning lance brick (2), the bottom insertion lance brick (3) and the bottom-burning lance brick (4) and the small stove body (1) is provided with a sealing element.

5. A glass melter burner as defined in claim 1, wherein ​

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