Full-oxygen combustion glass kiln large ring structure

Abstract

The utility model discloses full oxygen combustion glass kiln big arch structure, include: the body, its front surface fixedly connected with first big arch, rear surface fixedly connected with second big arch. The first big arch is provided with arch mortar brick, flow guide brick and ordinary arch brick in proper order, and the outside of ordinary arch brick is fixedly connected with parapet brick and boss in proper order, and the first expansion joint is reserved between ordinary arch brick and parapet brick, and the expansion joint is filled with fiber cotton to realize heat expansion absorption and seal. The upper surface of second big arch is provided with cover joint brick, and the cover joint brick is inserted in the notch set up on the upper surface of ordinary arch brick, and the top is fixedly connected with zirconium quality sealing material layer, hard refractory layer, light weight insulating brick layer and plastic sealing layer in proper order, and forms multilayer heat preservation sealing structure. The structure design is reasonable, can effectively promote the sealing performance and heat efficiency of kiln, prolongs the life, and is applicable to the high temperature and high humidity working environment of full oxygen combustion glass kiln.

Description

Technical Field

[0001] This utility model relates to the field of glass manufacturing equipment technology, and in particular to a large arch structure suitable for all-oxygen combustion glass furnaces. Background Technology

[0002] The main arch structure of an oxy-fuel glass furnace is the structural area at the top of the furnace, particularly the arch section covering the melting pool and refining zone. As a modern, efficient, and low-emission glass melting equipment, oxy-fuel glass furnaces have gradually replaced traditional air-fired furnaces, offering significant advantages such as high thermal efficiency and low NOx emissions. However, existing oxy-fuel glass furnaces operate in high-temperature, high-vapor, and high-alkali-vapor environments, placing higher demands on the main arch structure. Traditional furnace main arches are mostly constructed of silica bricks or single-material electrofused bricks, which suffer from poor erosion resistance, insufficient thermal stability, high thermal conductivity, poor sealing, and unreasonable insulation layer design. This leads to the main arch structure being susceptible to erosion and deformation, significant heat loss from the furnace, and decreased sealing performance, affecting furnace operating efficiency and service life, and increasing maintenance and cold repair costs. Therefore, there is an urgent need for a main arch structure with optimized structure, reasonable material selection, excellent sealing and insulation effects, and adaptability to the high-temperature and high-humidity oxy-fuel combustion environment to improve the overall operating performance and economy of glass furnaces. Utility Model Content

[0003] The purpose of this invention is to solve at least one of the technical problems existing in the prior art by providing a main arch structure for an all-oxygen combustion glass kiln. By setting a first expansion joint between the ordinary arch bricks and the breast wall bricks and filling it with fiber cotton, thermal expansion and contraction are effectively absorbed, solving the problems of poor sealing and air / heat leakage in traditional structures. A guide brick is installed on the first main arch to guide the high-temperature molten material to a safe area, preventing it from eroding the breast wall and pool wall bricks and improving structural stability. The second main arch adopts a joint-covering brick structure and is equipped with a multi-layer insulation system, including a zirconium sealant layer, a hard refractory layer, a lightweight insulating brick layer, and a plastic sealant layer, effectively reducing heat loss and improving insulation performance. This structure, through optimized material matching and structural connection methods, enhances thermal stability and erosion resistance, extending the service life of the main arch and the entire kiln.

[0004] This utility model also provides a large arch structure for an all-oxygen combustion glass kiln, comprising: a main body, a first large arch fixedly connected to the front surface of the main body, and a second large arch fixedly connected to the rear surface of the main body; the first large arch is provided with arch slag bricks, a guide brick fixedly connected to the rear surface of the arch slag bricks, a common arch brick fixedly connected to the rear surface of the guide bricks, a breast wall brick fixedly connected to the outer surface of the common arch bricks, a boss fixedly connected to the outer surface of the common arch bricks, and a first expansion joint reserved between the common arch bricks and the breast wall bricks, with fiber cotton placed inside the first expansion joint; a cover brick is provided on the upper surface of the second large arch, grooves are provided on both sides of the upper surface of the common arch bricks, a zirconium sealant layer is fixedly connected to the top of the cover brick, a hard refractory layer is fixedly connected to the rear surface of the zirconium sealant layer, a lightweight insulating brick layer is fixedly connected to the outer surface of the hard refractory layer, and a plastic sealing layer is fixedly connected to the end of the lightweight insulating brick layer.

[0005] According to the oxy-fuel glass furnace arch structure provided by this utility model, a first mounting port is fixedly connected to the front surface of the first arch, and a positioning buckle is fixedly connected to the side surface of the first mounting port. These components prevent the arch from falling off and causing safety hazards.

[0006] According to the oxy-fuel glass furnace arch structure provided by this utility model, a clamping gasket is fixedly connected to the front surface of the guide brick, and the clamping gasket is fixedly connected to the lower surface of the ordinary arch brick. These components ensure that the arch bricks are tightly compressed, increasing the reliability of the device.

[0007] According to the oxy-fuel glass kiln arch structure provided by this utility model, ceramic anchor hooks are fixedly connected to the side surface of the ordinary arch bricks, and the ceramic anchor hooks are fixedly connected to the boss. These components facilitate the fixing of the boss, making the arch structure easier to use.

[0008] According to the oxy-fuel glass furnace arch structure provided by this utility model, a second mounting port is provided within the first expansion joint, and a high-temperature expansion monitoring chamber is fixedly connected to the inner surface of the second mounting port. These components detect the internal temperature and pressure, preventing excessively high temperatures and pressures from affecting the safety of the arch.

[0009] According to the oxy-fuel glass furnace arch structure provided by this utility model, a third mounting port is fixedly connected to the outer surface of the end of the second arch, and the inner surface of the third mounting port is a fixedly connected exhaust channel. These components enhance the sealing performance of the air pump, ensuring the reliability of the device.

[0010] According to the oxy-fuel glass furnace arch structure provided by this utility model, a first fixing frame is fixedly connected to the upper surface of the second arch, and a reflective layer is fixedly connected to the inner surface of the first fixing frame. These components can reflect some heat, reducing the impact on the arch structure.

[0011] According to the oxy-fuel glass furnace arch structure provided by this utility model, a limiting wedge block is fixedly connected to the top of the boss. These components prevent excessive sliding of the slider and increase the compactness of the arch structure.

[0012] Compared to existing technologies, this all-oxygen combustion glass furnace arch structure, through the combination of protrusions, a first expansion joint, and fiber cotton, effectively adapts to high-temperature expansion changes, enhancing the seal between the breast wall and the arch bricks, reducing heat loss and leakage. The combination of cover bricks, a zirconium sealant layer, a hard refractory layer, and a plastic sealant layer, along with the synergistic effect of the cover bricks and the multi-layer insulation structure (zirconia sealant layer, hard refractory layer, lightweight insulating brick layer, and plastic sealant layer), effectively suppresses heat loss and improves the overall thermal efficiency of the furnace. The novel sealing structure prevents sealant from falling into the expansion joints, ensuring the structure can be reheated and used after cold repairs, improving equipment reusability. The guide bricks guide the flow direction of the high-temperature molten material, preventing erosion of the breast wall and tank walls, thus improving structural durability. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0014] Figure 1 This is a left-side structural view of the arch structure of the glass furnace with all-oxygen combustion in this utility model;

[0015] Figure 2 This is a right-side structural view of the arch structure of the glass furnace with all-oxygen combustion in this utility model;

[0016] Figure 3 This is a bottom view of the main arch structure of the glass furnace with all-oxygen combustion, which is part of this practical application.

[0017] Figure 4 This is a front view of the arch structure of the glass furnace with all-oxygen combustion, which is part of this utility model.

[0018] Legend:

[0019] 1. Main body; 2. First arch; 3. Second arch; 4. Arch rubble brick; 5. Guide brick; 6. Ordinary arch brick; 7. Breast wall brick; 8. Boss; 9. First expansion joint; 10. Fiber cotton; 11. Covering brick; 12. Groove; 13. Zirconia sealant layer; 14. Hard refractory layer; 15. Lightweight thermal insulation brick layer; 16. Plastic sealant layer; 17. First mounting port; 18. Positioning buckle; 19. Compression gasket; 20. Ceramic anchor hook; 21. Second mounting port; 22. High temperature expansion monitoring chamber; 23. Third mounting port; 24. Exhaust channel; 25. First fixing frame; 26. Reflective layer; 27. Limiting wedge. Detailed Implementation

[0020] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0021] Reference Figures 1-4 The embodiment of this utility model of an all-oxygen combustion glass furnace arch structure includes: a body 1, a first arch 2 fixedly connected to the front surface of the body 1, a second arch 3 fixedly connected to the rear surface of the body 1, a third mounting port 23 fixedly connected to the outer surface of the end of the second arch 3, and an exhaust channel 24 fixedly connected to the inner surface of the third mounting port 23. The first arch 2 is provided with arch slag bricks 4, a first mounting port 17 fixedly connected to the front surface of the first arch 2, and a positioning buckle 18 fixedly connected to the side surface of the first mounting port 17. A guide brick 5 is fixedly connected to the rear surface of the arch slag brick 4, a common arch brick 6 is fixedly connected to the rear surface of the guide brick 5, and a clamping gasket 19 is fixedly connected to the front surface of the guide brick 5, with the clamping gasket 19 fixedly connected to the lower surface of the common arch brick 6. A breast wall brick 7 is fixedly connected to the outer surface of the ordinary arch brick 6. A ceramic anchor hook 20 is fixedly connected to the side surface of the ordinary arch brick 6, and the ceramic anchor hook 20 is fixedly connected to the boss 8. A boss 8 is fixedly connected to the outer surface of the ordinary arch brick 6, and a limit wedge 27 is fixedly connected to the top of the boss 8. A first expansion joint 9 is reserved between the ordinary arch brick 6 and the breast wall brick 7. A second installation port 21 is provided in the first expansion joint 9, and a high-temperature expansion monitoring chamber 22 is fixedly connected to the inner surface of the second installation port 21. Fiber cotton 10 is provided in the first expansion joint 9.

[0022] Specifically, a first large arch 2 is fixedly connected to the front surface of the main body 1, and a second large arch 3 is fixedly connected to the rear surface. Arch slag bricks 4 are installed on the first large arch 2, and guide bricks 5 are fixedly connected to the rear surface of the arch slag bricks 4. Ordinary arch bricks 6 are fixedly connected to the rear surface of the guide bricks 5. A breast wall brick 7 is fixedly connected to one side of the outer surface of the ordinary arch brick 6, and a boss 8 is fixedly connected to the other side. A first expansion joint 9 is reserved between the ordinary arch brick 6 and the breast wall brick 7. The expansion joint 9 is filled with high-temperature resistant fiber cotton 10 to absorb thermal expansion and enhance the sealing effect during hot operation. This structure, through reasonable brick arrangement and sealing design, effectively improves the stability and sealing performance of the large arch structure.

[0023] The upper surface of the second large arch 3 is provided with a cover brick 11, and a first fixing frame 25 is fixedly connected to the upper surface of the second large arch 3. A reflective layer 26 is fixedly connected to the inner surface of the first fixing frame 25. The upper surface of the ordinary arch brick 6 is provided with grooves 12 on both sides. A zirconium sealant layer 13 is fixedly connected to the top of the cover brick 11. A rigid refractory layer 14 is fixedly connected to the rear surface of the zirconium sealant layer 13. A lightweight insulating brick layer 15 is fixedly connected to the outer surface of the rigid refractory layer 14. A plastic sealing layer 16 is fixedly connected to the end of the lightweight insulating brick layer 15.

[0024] Specifically, the upper surface of the second large arch 3 is provided with a cover brick 11. Grooves 12 are opened on both sides of the upper surface of the ordinary arch brick 6, and the cover brick 11 is inserted into the grooves 12 to seal the expansion joint. A zirconium sealant layer 13 is fixedly connected to the top of the cover brick 11 to provide a primary sealing function. A rigid refractory layer 14 is fixedly connected to the rear surface of the zirconium sealant layer 13 to enhance the overall thermal insulation and support performance of the structure. A lightweight insulating brick layer 15 and a plastic sealing layer 16 are sequentially fixedly connected to the outer surface of the rigid refractory layer 14. The lightweight insulating brick layer 15 is used to reduce heat loss, and the plastic sealing layer 16 is located on the outermost layer for external sealing and shaping. This structure has distinct layers and a good sealing effect, improving thermal insulation efficiency and kiln thermal stability.

[0025] Working Principle: The main body 1 drives the overall structure, with a first large arch 2 on the front surface and a second large arch 3 on the rear surface, forming a high-temperature zone and a clarification zone. The first large arch 2 is connected in sequence by arch slag bricks 4, guide bricks 5, and ordinary arch bricks 6, achieving stable stacking of the bricks. Breast wall bricks 7 and protrusions 8 are set on the outer side of the ordinary arch bricks 6, effectively absorbing thermal expansion and enhancing sealing through the pre-reserved first expansion joint 9 and the fiber cotton 10 filling it. A cover brick 11 is set on the second large arch 3, which is inserted and fixed with the grooves 12 on both sides of the ordinary arch bricks 6 to prevent sealant from falling into the joint and improve reusability. A zirconium sealant layer 13, a hard refractory layer 14, a lightweight insulating brick layer 15, and a plastic sealant layer 16 are sequentially set on the top of the cover brick, forming a highly efficient layered insulation structure, reducing heat loss and ensuring the long-term stable operation of the large arch structure.

[0026] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A large arch structure for an all-oxygen combustion glass furnace, characterized in that: include: The main body (1) has a first large arch (2) fixedly connected to its front surface and a second large arch (3) fixedly connected to its rear surface. The first large arch (2) is provided with arch slag bricks (4). The rear surface of the arch slag bricks (4) is fixedly connected with a flow guide brick (5). The rear surface of the flow guide bricks (5) is fixedly connected with a regular arch brick (6). The outer surface of the regular arch bricks (6) is fixedly connected with a breast wall brick (7). The outer surface of the regular arch bricks (6) is fixedly connected with a boss (8). A first expansion joint (9) is reserved between the regular arch bricks (6) and the breast wall bricks (7). Fiber cotton (10) is provided in the first expansion joint (9). The upper surface of the second large arch (3) is provided with a cover brick (11), and the upper surface of the ordinary arch brick (6) is provided with grooves (12) on both sides. The top of the cover brick (11) is fixedly connected with a zirconium sealant layer (13), the rear surface of the zirconium sealant layer (13) is fixedly connected with a hard refractory layer (14), the outer surface of the hard refractory layer (14) is fixedly connected with a lightweight heat-insulating brick layer (15), and the end of the lightweight heat-insulating brick layer (15) is fixedly connected with a plastic sealant layer (16).

2. The arch structure of the all-oxygen combustion glass furnace according to claim 1, characterized in that, The front surface of the first arch (2) is fixedly connected to a first mounting port (17), and the side surface of the first mounting port (17) is fixedly connected to a positioning buckle (18).

3. The arch structure of the all-oxygen combustion glass furnace according to claim 1, characterized in that, The front surface of the guide brick (5) is fixedly connected to a clamping pad (19), and the clamping pad (19) is fixedly connected to the lower surface of the ordinary arch brick (6).

4. The arch structure of the all-oxygen combustion glass furnace according to claim 1, characterized in that, The ordinary arch brick (6) is fixedly connected to a ceramic anchor hook (20) on its side surface, and the ceramic anchor hook (20) is fixedly connected to the boss (8).

5. The arch structure of the all-oxygen combustion glass furnace according to claim 1, characterized in that, A second installation port (21) is provided inside the first expansion joint (9), and a high-temperature expansion monitoring cavity (22) is fixedly connected to the inner surface of the second installation port (21).

6. The arch structure of the all-oxygen combustion glass furnace according to claim 1, characterized in that, The outer surface of the end of the second arch (3) is fixedly connected to a third mounting port (23), and the inner surface of the third mounting port (23) is fixedly connected to an exhaust channel (24).

7. The arch structure of the all-oxygen combustion glass furnace according to claim 1, characterized in that, The upper surface of the second arch (3) is fixedly connected to a first fixing frame (25), and the inner surface of the first fixing frame (25) is fixedly connected to a reflective layer (26).

8. The arch structure of the all-oxygen combustion glass furnace according to claim 1, characterized in that, The top of the boss (8) is fixedly connected to a limiting wedge (27).

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