Glass kiln breast wall structure with supporting structure and adjusting method thereof

Abstract

The invention provides a glass kiln breast wall structure with a supporting structure and an adjusting method of the glass kiln breast wall structure. A structure body comprises a breast wall structure and a side breast wall arranged on one side of the breast wall structure, and the upper portion of the side breast wall is connected with a large arch structure through an arch foot beam; a fastening unit is arranged between the breast wall structure and the side breast wall stand column, the breast wall structure is provided with a buffer jacking assembly, and at least one part of the arch foot beam is located between the fastening unit and the buffer assembly; the fastening unit comprises a first fastening assembly and a second fastening assembly, and the first fastening assembly can directly abut against the buffer assembly; the second fastening assembly acts on the buffering assembly through the arch foot beam in a jacking mode so that the side breast wall stand column, the arch foot beam and the breast wall structure can form a jacking and fastening structure. The glass kiln breast wall structure can effectively resist thermal stress and structural deformation in a high-temperature operation environment, so that the service life of the glass kiln breast wall structure is prolonged, the overall stability of a glass kiln is improved, and the glass kiln breast wall structure has certain practical significance.

Description

Technical Field

[0001] The invention belongs to the technical field of auxiliary structures at the breast wall of a glass furnace, and in particular relates to a glass furnace breast wall structure with a supporting structure and an adjustment method thereof. Background Art

[0002] In the field of glass furnace production, the front wall is the front end wall of the melting flame space, spanning the upper part of the charging pool to block the escape and heat radiation of hot gas (including flame) at the charging port at the front end of the melting furnace. The front wall is easily damaged by flame burning and erosion of powder, and is easily deformed when the hot air furnace is baked. Since the erosion conditions and thermal repair time of each part of the glass melting furnace are different, in order to separate the most seriously damaged parts of the thermal repair, the breast wall, the arch, and the kiln pool are divided into three separate supporting parts, and finally the load is transferred to the steel structure at the bottom of the kiln. The load-bearing of the breast wall is transmitted to the column by the breast wall support plate (made of cast iron or angle steel) and the lower palm iron, and finally to the steel structure at the bottom of the kiln. The design of the breast wall must ensure sufficient strength at high temperatures. The height of the breast wall depends on factors such as the type and quality of the fuel, the melting rate, the melting heat consumption, the scale of the melting furnace, the heat dissipation, and the thickness of the gas layer. Theoretically, as long as the erosion resistance of the refractory materials used in the breast wall is guaranteed, the breast wall will not become a key part that affects the life of the melting furnace. However, in actual use, many melting furnaces have shortened their life due to uneven expansion of the breast wall in the melting zone. Some melting furnaces have experienced breast wall collapse accidents due to untimely discharge of materials in the later period. The main reason is that after the masonry of the arch is completed, the breast wall tilts and tilts inwards when the support is tightened due to the temperature increase expansion. In order to reduce or avoid the occurrence of this phenomenon, it is necessary to steadily improve and optimize the breast wall of the melting furnace.

[0003] In the glass kiln structure of the prior art, during the masonry and installation process of the front breast wall or rear breast wall bricks, too much mud is used in the gaps between the bricks, resulting in too large gaps, which may cause the bricks to tilt and crack. In the production process of the glass kiln, such problems may be further amplified. In addition, since the connection between the branch structures of the glass kiln is not tight, changes in position and structure may occur during the production process, thereby affecting the stability of the overall structure of the kiln. Summary of the invention

[0004] The present invention provides a glass furnace breast wall structure with a supporting structure and an adjustment method thereof, aiming to solve the problem that in the current glass furnace structure, the position and structure may change during the production process due to the loose connection between its branch structures, thereby affecting the overall stability of the furnace.

[0005] In order to achieve the above object, the present invention adopts the following technical scheme: The present invention provides a glass furnace breast wall structure with a supporting structure, comprising a structural body, the structural body comprising a breast wall structure and a side breast wall arranged on one side thereof, the upper part of the side breast wall is connected with a large arch structure through an arch foot beam; wherein: The side breast wall is provided with a side breast wall column on a side close to the breast wall structure; a fastening unit is provided between the breast wall structure and the side breast wall column, the breast wall structure is provided with a buffering and tightening assembly corresponding to the fastening unit, and at least a part of the arch foot beam is located between the fastening unit and the buffer assembly; The fastening unit includes a first fastening component and a second fastening component. The first fastening component can directly push against the buffer component to support and fasten the breast wall structure; the second fastening component pushes against the buffer component through the arch beam to form a pushed and fastened structure with the side breast wall columns, the arch beam and the breast wall structure.

[0006] In some embodiments, the first fastening assembly includes two first supporting parts, each of which is configured with a first top screw, and the two first supporting parts are arranged at intervals on the side breast wall column along the length direction of the side breast wall column. In the working state, the two first top screws can pass through the upper and lower sides of the arch foot beam and then tighten to act on the buffer assembly.

[0007] In some embodiments, the second fastening assembly includes two second supporting parts, each of which is configured with a second top screw, and the two second supporting parts are located between the first fastening assembly along the length direction of the side breast wall column. In the working state, the two second top screws can tighten the buffer assembly through the bracket beam.

[0008] Furthermore, a through hole is provided in the arch foot beam corresponding to each second top screw, and the second top screw can penetrate the arch foot beam and then be pressed against the buffer assembly.

[0009] Furthermore, the second top screw is provided with fasteners at both ends of the bracket foot beam.

[0010] In some embodiments, the buffer assembly includes a top tightening plate, which is disposed on a side of the breast wall structure, and the top tightening plate has at least one rib plate along its vertical direction.

[0011] In some embodiments, the tightening plate is a plate-like structure, and the plate-like structure is made of rigid material.

[0012] In some embodiments, the arch beam can be connected to an external furnace steel structure, which is used to support and fix the breast wall structure of the glass furnace.

[0013] In some embodiments, the breast wall structure includes a refractory material structure composed of a front breast wall and a rear breast wall.

[0014] The present invention also provides a method for adjusting a breast wall structure of a glass furnace having a supporting structure, comprising the following steps: At room temperature, use the first fastening assembly to tighten the breast wall structure; During the heating period of the kiln, the first fastening assembly is kept pressed against the breast wall structure; After the furnace is heated up, the second fastening assembly is also pressed against the breast wall structure, and the side breast wall columns, the arch beams and the breast wall structure are supported and pressed by the first fastening assembly and the second fastening assembly.

[0015] Compared with the prior art, the glass furnace breast wall structure with a supporting structure and the adjustment method thereof of the present invention have the following beneficial effects: The present invention discloses a glass furnace breast wall structure with a supporting structure, comprising a structural body, wherein the structural body comprises a breast wall structure and a side breast wall arranged on one side thereof, and a large crown structure is connected to the side breast wall through a crown foot beam; wherein: a side breast wall is provided with a side breast wall column on a side close to the breast wall structure; a fastening unit is provided between the breast wall structure and the side breast wall column, and a buffering and tightening component is provided corresponding to the fastening unit of the breast wall structure, and at least a part of the crown foot beam is located between the fastening unit and the buffering component; the fastening unit comprises a first fastening component and a second fastening component, and the first fastening component can directly tighten the buffering component so as to support and tighten the breast wall structure; the second fastening component tightens the buffering component through the crown foot beam so as to form a tightened structure with the side breast wall column, the crown foot beam and the breast wall structure. Based on the above, the present invention enhances the overall stability of the breast wall structure of the glass kiln through the combination of side breast wall columns, fastening units and buffering and tightening components, so that the breast wall structure of the glass kiln can effectively resist thermal stress and structural deformation in a high-temperature working environment. The present invention can provide a certain expansion and contraction space when the structure is subject to temperature changes through the provision of a buffering and tightening component, thereby reducing stress concentration caused by thermal expansion and contraction, and thus extending the service life of the breast wall structure of the glass kiln. The present invention not only provides direct support through the dual effects of the first fastening component and the second fastening component, but also achieves indirect support and tightening through the bracket beam, making the breast wall structure of the glass kiln more stable and improving the overall stability of the glass kiln. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings in the specification are used to provide further understanding of the present invention and constitute a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0017] Figure 1 It is a structural schematic diagram of a glass furnace breast wall structure with a supporting structure and an adjustment method thereof of the present invention; Figure 2 It is a side view schematic diagram of a glass furnace breast wall structure with a supporting structure and an adjustment method thereof of the present invention; Figure 3 It is a top view schematic diagram of a glass furnace breast wall structure with a supporting structure and an adjustment method thereof of the present invention; Figure 4 It is a front view schematic diagram of a glass furnace breast wall structure with a supporting structure and an adjustment method thereof of the present invention.

[0018] Among them, 1. breast wall structure, 2. side breast wall, 3. large arch structure, 4. side breast wall column, 5. arch foot beam, 6. first supporting part, 7. first top screw, 8. second supporting part; 9. second top screw, 10. top tightening plate, 101. rib plate, 11. nut. DETAILED DESCRIPTION

[0019] 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.

[0020] 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.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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.

[0025] How to install the furnace in a cold state, whether in the heating process or in the normal high-temperature production process, to ensure that the breast wall structure of the glass furnace has a stable structural form.

[0026] like Figure 1 and Figure 2 As shown, the present invention is a glass furnace breast wall structure with a supporting structure, comprising a structural body, the structural body comprising a breast wall structure 1 and a side breast wall 2 arranged on one side thereof, and a large crown structure 3 is connected to the upper side of the side breast wall 2 through a crown foot beam 5; wherein: The side breast wall 2 is provided with a side breast wall column 4 on a side close to the breast wall structure 1; a fastening unit is provided between the breast wall structure 1 and the side breast wall column 4, and a buffering and tightening assembly is provided corresponding to the fastening unit of the breast wall structure 1, and at least a part of the arch beam 5 is located between the fastening unit and the buffer assembly; The fastening unit includes a first fastening component and a second fastening component. The first fastening component can directly push against the buffer component to support and fasten the breast wall structure 1; the second fastening component pushes against the buffer component through the arch beam 5 to form a pushed and fastened structure among the side breast wall columns 4, the arch beam 5 and the breast wall structure 1.

[0027] After the expansion support structure is designed in the structure body, the present invention ensures that the parts on both sides of the front breast wall or the rear breast wall close to the arch foot beam are always fastened and supported by the support structure of the stainless steel plate and the top screw, regardless of whether the kiln is in the cold installation process, the heating process, or the high-temperature normal production process.

[0028] like Figure 3 and Figure 4As shown, in some embodiments, the first fastening assembly of the present invention includes two first support parts 6, each of which is provided with a first top screw 7, and the two first support parts 6 are arranged at intervals on the side breast wall column 4 along the length direction of the side breast wall column 4. In the working state, the two first top screws 7 can pass through the upper and lower sides of the arch foot beam 5 and then tighten to act on the buffer assembly. The present invention designs a fastening unit at the positions close to the arch foot beam 5 on both sides of the front breast wall or the rear breast wall. In this way, before the kiln is heated up, it is fully ensured that the brick structure of the front breast wall or the rear breast wall is in a good fastening state. During the masonry installation process of the front breast wall or the rear breast wall bricks, because too much mud is used in the gap between bricks, the gap is too large, which will also cause the bricks to tilt and crack. The present invention avoids the occurrence of such problems through the design of the first fastening assembly. The first screw 7 of the first fastening assembly can be tightened to directly tighten the buffer structure and the breast wall structure 1, so that the excess slurry between the bricks will be squeezed out, the gap will shrink, and the brick structure will be tightened as a whole, thus improving the strength of the brick structure.

[0029] The two first support parts 6 and the first top screw 7 of the present invention can directly act on the buffer assembly, ensuring that the breast wall structure 1 is directly and effectively supported at the key position, improving the support efficiency. The design of the spacing arrangement along the length direction of the side breast wall column 4 helps to disperse the stress acting on the breast wall structure 1 and prevent structural damage caused by excessive local stress. The design of the two second support parts 8 and the second top screw 9 being spaced apart along the length direction of the side breast wall column 4 helps to disperse the stress acting on the breast wall structure 1 and prevent structural damage caused by excessive local stress.

[0030] The second fastening assembly of the present invention includes two second support parts 8, each of which is provided with a second top screw 9. The two second support parts 8 are located between the first fastening assembly along the length direction of the side breast wall column 4. In the working state, the two second top screws 9 can act on the buffer assembly through the arch beam 5. During the heating process of the kiln, the front breast wall or rear breast wall brick structure of the breast wall structure 1 is in the process of thermal expansion, and has the ability to use these two separately fixed second top screws 9 for support and fastening adjustment. The expansion of the brick structure of the breast wall structure 1 has the ability of process control, and also enhances the margin of quantitative process adjustment. The front breast wall or rear breast wall brick structure is controlled at all times during the entire heating process. After the kiln is heated up, it is in a high temperature state. The design of the second fastening assembly fully ensures that the front breast wall or rear breast wall brick structure is still in a good fastening state. It ensures a good working condition for the subsequent kiln to be used under long-term continuous ultra-high temperature conditions.

[0031] The provision of the second fastening component in the present invention further enhances the fastening of the breast wall structure 1, especially the indirect tightening force transmitted through the arch beam 5, making the entire support system more stable. The present invention arranges the second fastening component between the first fastening components, optimizes the distribution of the fastening force, and improves the uniformity of the support effect.

[0032] The buffer assembly of the present invention includes a tightening plate 10, which is arranged on the side of the breast wall structure 1, and the tightening plate 10 has at least one rib plate 101 along its vertical direction. The tightening plate 10 is a plate-like structure, and the plate-like structure is made of rigid material. The present invention can apply a tightening force to the brick structure on the entire side area by adopting but not limited to a stainless steel plate that is a rigid material. Local support that only acts on one point or one line is avoided. The support of the surface can better play the role of the overall tightening strength. The stainless steel plate is provided with a rib plate 101, and the plate ribs 101 can be two or more, which can enhance the strength of the stainless steel plate.

[0033] The present invention configures fasteners at both ends of the second top screw 9 located on the arch foot beam 5. In actual working conditions, nuts 11 can be selected to effectively prevent the second top screw from loosening or falling off during operation, enhance the stability and reliability of fastening, and thus extend the service life of the overall structure.

[0034] The first support part 6 and the second support part 8 of the present invention are square tubes, and all the top screw structures are located on the square tubes connected to the breast wall columns 4. The breast wall columns 4 are the most basic and stable steel structures of all breast wall structures 1. Therefore, it is guaranteed to the greatest extent that the top screws themselves have good supporting strength in the adjusted state, and it can also be guaranteed that the top screws applied to any structure have sufficient strength.

[0035] The first fastening assembly of the present invention will not participate in the fastening of the brick structure before the temperature is raised. And it will not participate in the fastening during the heating process. In this way, the top screw can have its fastening effect without interacting with the arch beam 5. However, after the heating is completed, two arch beams 5 are used to fix the top screws together with the columns and then act on the stainless steel plate, which strengthens the effect of the four top screws. It also makes the arch beam 5, the side breast wall column 4 and the breast wall structure 1 tightly fixed and connected together.

[0036] In some embodiments, the first top screw 7 of the first fastening assembly of the present invention directly acts on the surface of the stainless steel plate to support and fasten the breast wall structure 1. The position of the arch foot beam 5 also has two second top screws 9 fixed on the side breast wall columns 4. Under normal temperature conditions, these two second top screws 9 do not act on the surface of the stainless steel plate. Under normal temperature conditions, the two first top screws 7 on the arch foot beam 5 first act on the stainless steel plate, and continue to act on the stainless steel plate during the heating of the kiln, so as to support the front and rear breast wall bricks through the first top screws 7, so that the breast wall structure 1 as a whole remains tightened and seamless. After the kiln is heated, the two second top screws 9 on the arch foot beam 5 are tightened on the stainless steel plate, so that the stainless steel plate has four top screws tightening. And through the tightening action of the two top screws of the arch foot beam 5, the side breast wall columns 4, the arch foot beam 5 and the breast wall structure form an integral connection structure.

[0037] In the present invention, the kiln refers to a kiln used for producing ultra-thin sheet glass for electronic display devices. A kiln used for manufacturing glass liquid by melting, homogenizing and clarifying glass powder, wherein the breast wall structure 1 includes a front breast wall structure and a rear breast wall structure. The front breast wall structure is a breast wall structure at the front part of the kiln near the silo side of the kiln, which is a breast wall structure with a charging port and a flue port reserved. The rear breast wall structure is a breast wall structure at the rear part of the kiln near the material channel side of the kiln, which is a breast wall structure with an observation port and a pressure detection port reserved. The side breast wall structure is a breast wall structure symmetrically arranged on both sides of the kiln, which is a breast wall structure with a combustion system reserved. The crown angle beam 5 is located on the top of the breast wall, close to the outside of the large crown brick structure, and is a part of the kiln steel structure. It is a metal material that plays a role in strengthening and fixing the large crown brick structure of the kiln. The kiln steel structure is a structure that uses a mixture of one or more metals to support and fix the overall refractory material of the kiln. The material of the side breast wall column 4 is also close to the outside of the side breast wall brick structure, which is a part of the kiln steel structure and plays a role in fixing the side breast wall brick structure of the kiln. The kiln heating process is a process of continuously heating the kiln from a normal temperature state by providing high-energy heat, especially heating the refractory material of the entire kiln, so that the kiln enters a certain high temperature state.

[0038] The present invention provides an adjustment method for the breast wall structure of a glass kiln with a supporting structure. When the refractory bricks of the breast wall structure 1 in front of the kiln are heated and expanded, the first top screws 7 symmetrically arranged up and down are tightly pressed against the top tightening plate 10 of the ribbed plate, and the top tightening plate 10 is also tightly attached to the surface of the refractory bricks of the breast wall structure 1. The first top screw 7 continuously applies a compressive force, so that the refractory bricks of the breast wall structure 1 are in a tightened state, thereby ensuring the overall structural state of the breast wall structure 1. However, during the heating process, the second top screw 9 fixed together does not contact the top tightening plate 10, but only passes through the nut 11 set on the arch foot beam 5 to connect the arch foot beam 5 and the side breast wall column 4 together. When the refractory bricks of the breast wall structure 1 are heated up, the second top screw 9 fixed together is tightly pressed against the top tightening plate 10 of the ribbed plate 101. By continuously applying the compressive force of the two first top screws 7 and the two second top screws 9, the refractory bricks of the breast wall structure 1 are tightened under high temperature, thereby ensuring the final overall structural state of the breast wall structure 1. It also ensures that the arch beam 5, the side breast wall column 4 and the breast wall structure 1 are tightly fixed together.

[0039] The present invention ensures the safety and stability of the breast wall structure of the glass kiln during the heating process through the method of adjusting the fastening components in stages. The second fastening component is pressed against the breast wall structure only after the heating of the kiln is completed, thereby avoiding deformation problems caused by premature fastening, optimizing the fastening effect, and improving the accuracy of the operation.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A glass furnace breast wall structure with a supporting structure, characterized in that: The structure comprises a main body, the main body comprising a breast wall structure (1) and a side breast wall (2) arranged on one side thereof, the upper part of the side breast wall (2) being connected to a large arch structure (3) via an arch foot beam (5); wherein: The side breast wall (2) is provided with a side breast wall column (4) on a side close to the breast wall structure (1); a fastening unit is provided between the breast wall structure (1) and the side breast wall column (4); the breast wall structure (1) is provided with a buffering and tightening assembly corresponding to the fastening unit; and at least a portion of the arched foot beam (5) is located between the fastening unit and the buffering assembly; The fastening unit comprises a first fastening component and a second fastening component, wherein the first fastening component can directly act on the buffer component to support and fasten the breast wall structure (1); the second fastening component acts on the buffer component via a cam beam (5) to enable the side breast wall columns (4), the cam beam (5) and the breast wall structure (1) to form a cam-fastened structure.

2. The glass furnace breast wall structure with a supporting structure according to claim 1, characterized in that: The first fastening assembly comprises two first supporting parts (6), each of the first supporting parts (6) is provided with a first top screw (7), the two first supporting parts (6) are arranged at intervals on the side breast wall column (4) along the length direction of the side breast wall column (4), and in an operating state, the two first top screws (7) can pass through the upper and lower sides of the arch foot beam (5) and then press and act on the buffer assembly.

3. The glass furnace breast wall structure with a supporting structure according to claim 1, characterized in that: The second fastening assembly comprises two second supporting parts (8), each of the second supporting parts (8) is provided with a second top screw (9), the two second supporting parts (8) are located between the first fastening assembly along the length direction of the side breast wall column (4), and in an operating state, the two second top screws (9) can act on the buffer assembly by tightening the base beam (5).

4. The glass furnace breast wall structure with a supporting structure according to claim 3, characterized in that: The arch foot beam (5) is provided with a through hole corresponding to each second top screw (9), and the second top screw (9) can penetrate the arch foot beam (5) and then be pressed against the buffer component.

5. The glass furnace breast wall structure with a supporting structure according to claim 4, characterized in that: The second top screw (9) is provided with fasteners at both ends of the bracket foot beam (5).

6. The glass furnace breast wall structure with a supporting structure according to claim 1, characterized in that: The buffer assembly comprises a tightening plate (10), wherein the tightening plate (10) is arranged on a side surface of the breast wall structure (1), and the tightening plate (10) has at least one rib plate (101) along its vertical direction.

7. The glass furnace breast wall structure with a supporting structure according to claim 1, characterized in that: The tightening plate (10) is a plate-like structure, and the plate-like structure is made of a rigid material.

8. The glass furnace breast wall structure with a supporting structure according to claim 1, characterized in that: The arch beam (5) can be connected to an external furnace steel structure, and the external furnace steel structure is used to support and fix the breast wall structure of the glass furnace.

9. The glass furnace breast wall structure with a supporting structure according to claim 1, characterized in that: The breast wall structure (1) comprises a refractory material structure composed of a front breast wall and a rear breast wall.

10. A method for adjusting a breast wall structure of a glass furnace having a support structure according to any one of claims 1 to 9, characterized in that: The steps include: At room temperature, use the first fastening assembly to tighten the breast wall structure (1); During the heating period of the kiln, the first fastening assembly is kept pressed against the breast wall structure (1); After the furnace is heated up, the second fastening assembly is also pressed against the breast wall structure (1), and the first fastening assembly and the second fastening assembly are used to support and tighten the side breast wall columns (4), the arch beams (5) and the breast wall structure (1).

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