Glass kiln and supporting device for glass kiln lining

Abstract

The utility model relates to the technical field of kiln structures and lining supporting members in kilns, in particular to a glass kiln and a supporting device for a lining of the glass kiln, which comprises a supporting frame connected to the wall of the kiln, an insulation board slidably arranged in an opening in the wall of the kiln, a first spring and a heat-resistant force transmission assembly. Wherein the two ends of the first spring elastically abut against the supporting frame and the heat preservation plate correspondingly, and the two ends of the heat-resisting force transmission assembly are connected to the heat preservation plate and a furnace lining of the glass kiln correspondingly so that the elastic force of the first spring can be transmitted to the furnace lining. When the glass kiln works, the furnace lining is heated and expanded to generate pressure on the heat-resisting force transmission assembly, the heat-resisting force transmission assembly transmits the pressure to the first spring through the heat preservation plate, and the supporting frame supports the first spring, so that the supporting frame generates elastic force on the heat preservation plate to support the heat-resisting force transmission assembly and further support the furnace lining. The supporting device directly supports the furnace lining in the glass furnace, so that the stability of a temperature field in the glass furnace can be ensured, and the service life of the glass furnace is prolonged.

Description

Technical Field

[0001] The technical solution disclosed in the present invention relates to the technical field of kiln structure and kiln lining support components in the kiln, and in particular to a support device for the lining of a glass kiln. On this basis, the present invention also relates to a glass kiln including the support device. Background Art

[0002] In the glass production process, the glass kiln needs to provide a high temperature environment to heat the glass to a molten state and process it. Especially in the processing step, the temperature stability in the furnace has a significant impact on the quality of the glass products. In order to extend the life of the furnace body and maintain the stability of the temperature field in the furnace, a refractory and high-temperature resistant furnace lining is usually installed in the kiln to support the furnace wall and reflect the heat radiation generated by the heat source in the furnace, thereby stabilizing the temperature field in the furnace. Therefore, the furnace lining is usually made of refractory and high-temperature resistant materials, which are required to maintain a stable working state in a long-term high-temperature environment, and not to affect the overall lining structure due to thermal expansion, thereby affecting the temperature stability in the furnace.

[0003] In the glass production process, some kilns need to maintain high temperatures for a long time. Even if refractory and high-temperature resistant materials are used as the furnace lining, they will still expand and deform due to heat after being heated at high power for a long time, resulting in unstable temperature field in the furnace, which in turn causes temperature fluctuations in the furnace, thereby reducing the service life of the furnace and affecting the quality of the produced glass products. Since industrial kilns cannot be observed from the outside, it is also difficult to determine whether the produced glass substrate has defects by naked eye. Operators cannot prevent the furnace lining from overheating and deformation by stopping the kiln through observation and experience.

[0004] CN 209744992 U discloses a self-buffering device for a vaulted shuttle kiln, which buffers the kiln refractory material during deformation by providing a cylindrical compression spring, and provides a controller and a warning light to facilitate operators to stop using the kiln in time when they find that the spring buffer stroke is exceeded. This prior art can limit the deformation of the vaulted refractory material under high temperature conditions to a certain extent, and avoid cracks between the refractory materials after cooling. However, the refractory lining plate in the kiln may still expand significantly under high temperature conditions, resulting in unstable temperature field in the furnace, thereby affecting product quality. Utility Model Content

[0005] A technical problem to be solved by the present disclosure is: how to support the furnace lining in a high-temperature kiln to prevent it from deforming, thereby ensuring the stability of the high-temperature temperature field in the kiln.

[0006] In order to solve the above technical problems, in a first aspect, an embodiment of the present disclosure provides a supporting device for a glass furnace lining, comprising:

[0007] The support frame is connected to the furnace wall of the glass furnace.

[0008] The insulation board is slidably arranged in the opening on the furnace wall,

[0009] a first spring, the two ends of which are elastically connected to the support frame and the insulation board respectively; and

[0010] A heat-resistant force transmission component, the two ends of which are respectively connected to the insulation board and the furnace lining in the glass furnace, so as to be able to transmit the elastic force of the first spring to the furnace lining.

[0011] In some embodiments, the heat-resistant force transmission component includes a second spring with two ends respectively connected to the insulation board and the furnace lining, and a thermal insulation layer sleeved outside the second spring.

[0012] In some embodiments, the second spring is an Inconel 625 high temperature alloy spring.

[0013] In some embodiments, the insulation layer is made of a flexible material.

[0014] In some embodiments, a wall insulation layer is provided on the inner side of the furnace wall, and the insulation board is made of the same material as the wall insulation layer.

[0015] In some embodiments, the support frame seals and covers the outside of the opening on the furnace wall and forms a concave cavity that is concave in a direction away from the insulation board, and one end of the first spring is connected to the end wall of the concave cavity.

[0016] In some embodiments, an annular flange protruding radially outward is formed at one end of the support frame facing the insulation board, and the support frame is detachably connected to the outer wall surface of the furnace wall through the annular flange.

[0017] In some embodiments, the supporting device further comprises a pressure sensor for measuring the pressure exerted on the first spring by the insulation board.

[0018] In some embodiments, the pressure sensor is disposed between the first spring and the support frame.

[0019] In a second aspect, an embodiment of the present disclosure further provides a glass kiln, which includes a furnace lining arranged on the inner side of a furnace wall and supporting devices respectively supported at two ends of the furnace lining.

[0020] In the present disclosure, the furnace lining is in contact with the heat-resistant force-transfer component. When the glass kiln is working, the furnace lining expands due to heat and generates pressure on the heat-resistant force-transfer component. The heat-resistant force-transfer component transmits the pressure to the first spring through the insulation board to cause it to deform. The support frame supports the first spring to generate elastic force on the insulation board to support the heat-resistant force-transfer component and thus support the furnace lining. The present disclosure sets a heat-resistant force-transfer component, an insulation board, a first spring and a support frame that directly contact the furnace lining, so that the support device can directly contact and support the lining plate in the furnace. Compared with the prior art, it can directly slow down the deformation of the lining plate in the furnace, thereby ensuring the stability of the temperature field in the furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 is a schematic diagram of a structure of an embodiment of the present disclosure installed on a kiln;

[0023] Figure 2 yes Figure 1 Schematic diagram of the local structure of part A;

[0024] Figure 3 It is a schematic diagram of the structure of an embodiment of the present disclosure installed on a glass shaping furnace.

[0025] Description of reference numerals:

[0026] 1. Furnace wall; 2. Furnace lining; 3. Insulation layer; 4. Second spring; 5. Insulation layer on the wall; 6. Insulation board; 7. First spring; 8. Pressure sensor; 9. Support frame. DETAILED DESCRIPTION

[0027] The following is a further detailed description of the embodiments of the present disclosure in conjunction with the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to exemplarily illustrate the principles of the present disclosure, but cannot be used to limit the scope of the present disclosure. The present disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

[0028] The present disclosure provides these embodiments to make the present disclosure thorough and complete, and to fully express the scope of the present disclosure to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary, and not as limiting.

[0029] It should be noted that, in the description of the present disclosure, unless otherwise specified, the meaning of "multiple" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the orientation or positional relationship, are only for the convenience of describing the present disclosure and simplifying the description, and do 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 of the present disclosure. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0030] In addition, the words "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different parts. "Vertical" does not mean vertical in the strict sense, but is within the tolerance range. "Parallel" does not mean parallel in the strict sense, but is within the tolerance range. "Include" or "comprising" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements.

[0031] It should also be noted that in the description of the present disclosure, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0032] All terms used in the present disclosure have the same meanings as those understood by those of ordinary skill in the art to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, for example, should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined as such herein.

[0033] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0034] In a first aspect, an embodiment of the present disclosure provides a supporting device for a glass furnace lining, such as Figures 1 to 3As shown, it includes a support frame 9 connected to the furnace wall 1 of the glass furnace, a heat preservation plate 6 slidably arranged in the opening of the furnace wall 1, a first spring 7 and a heat-resistant force transmission component. The two ends of the first spring 7 are elastically abutted against the support frame 9 and the heat preservation plate 6 respectively, and the two ends of the heat-resistant force transmission component are respectively connected to the heat preservation plate 6 and the furnace lining 2 in the glass furnace, so as to be able to transmit the elastic force of the first spring 7 to the furnace lining 2.

[0035] When the glass kiln is working, the furnace lining 2 abuts against the heat-resistant force-transfer component, and the furnace lining 2 expands due to the heat, thereby squeezing the heat-resistant force-transfer component, and the heat-resistant force-transfer component transfers the pressure to the first spring 7 through the insulation board 6. The support frame 9 supports the first spring 7 to generate elastic force on the insulation board 6, supporting the heat-resistant force-transfer component and thus supporting the furnace lining 2 to prevent it from deformation, thereby ensuring the stability of the temperature field in the furnace.

[0036] By setting openings on the furnace wall and heat-resistant force transmission components, the support device disclosed in the present invention can be directly in contact with the furnace lining 2 in the glass kiln that needs to be supported, providing direct support for the furnace lining 2, and will not cause the force transmission component to malfunction due to excessively high temperature in the furnace. It can slow down the thermal deformation of the furnace lining and ensure the stability of the temperature field in the glass kiln.

[0037] By providing the first spring 7, the heat-resistant force transmission component can provide support to the furnace lining 2. Compared with using a rigid support, using the first spring 7 as a support to support the heat-resistant force transmission component can give the furnace lining 2 an appropriate deformation space, so that it will not be damaged due to excessive pressure from the support when it expands due to heat, which can improve the stability of the glass furnace and extend the life of the furnace lining 2. At the same time, using the spring as a support allows the operator to change the specifications of the first spring 7 to make the support device of the present disclosure applicable to the furnace lining 2 of various glass furnaces, thereby making it have a wider range of applications.

[0038] In some embodiments, Figure 2 As shown, the heat-resistant force transmission component includes a second spring 4 whose two ends are respectively connected to the insulation board 6 and the furnace lining 2 and the insulation layer 3 sleeved on the second spring 4. The second spring 4 is elastically connected to the furnace lining 2 and the insulation board 6. By providing the second spring 4, the device can directly contact with the furnace lining 2 and support the furnace lining 2, thereby slowing down the thermal expansion and deformation of the furnace lining 2. At the same time, by providing the insulation layer 3 outside the second spring 4, the second spring 4 can be isolated from the high temperature environment in the furnace, so that the second spring 4 can work within its operating temperature range without being affected by the high temperature environment, so that the device can be suitable for the high temperature environment in the glass kiln.

[0039] In some embodiments, the second spring 4 is made of Inconel625 high temperature alloy, wherein Inconel625 high temperature alloy is a solid solution strengthened nickel-based deformable high temperature alloy with molybdenum and niobium as main strengthening elements, and has good tensile properties and fatigue properties from room temperature to 980°C. In a high temperature environment in a furnace for a long time, the insulation effect of the insulation layer 3 on the second spring 4 will be reduced. The second spring 4 made of Inconel625 high temperature alloy can further ensure that the second spring 4 can work normally in a high temperature environment, so that the support device disclosed in the present invention can be applied to the environment inside a high temperature glass furnace.

[0040] In some embodiments, the insulation layer 3 is made of a flexible material. The material of the flexible insulation material can be high-purity aluminum silicate fiber, which can be used for a long time below 1260°C. Compared with the insulation layer made of rigid material, the insulation layer 3 made of flexible material can prevent it from expanding and deforming after being heated to generate pressure on the insulation board 6, which causes the pressure transmitted from the second spring 4 to the insulation board 6 to be inaccurate, thereby ensuring that the pressure from the insulation board 6 received by the first spring 7 can directly and accurately reflect the degree of thermal deformation of the furnace lining 2.

[0041] In some embodiments, Figure 2 As shown, a wall insulation layer 5 is provided on the inner side of the furnace wall 1, and the insulation board 6 is made of the same material as the wall insulation layer 5. The furnace wall of the glass furnace is usually made of a metal furnace wall, which has poor insulation performance. By providing the wall insulation layer 5 and the insulation board 6, the heat in the glass furnace can be prevented from being lost quickly, thereby saving energy, and the temperature field in the furnace can be ensured to be uniform.

[0042] The thickness of the insulation board 6 depends on the thickness of the furnace wall 1, so as to ensure that when the glass furnace is working, the side of the insulation board 6 facing the outside of the glass furnace never protrudes from the inner surface of the glass furnace insulation layer 3 facing the furnace, and the side of the insulation board 6 facing the inside of the glass furnace never protrudes from the outer surface of the glass furnace wall 1. By the insulation board 6 not protruding from the furnace wall 1, it can be ensured that there is a complete insulation layer in the glass furnace, and the heat will not overflow from the small holes opened on the furnace wall 1, thereby ensuring that the temperature field in the glass furnace is stable and uniform.

[0043] In some embodiments, Figure 2 As shown, the support frame 9 is sealed and covered on the outside of the opening on the furnace wall 1, and a concave cavity is formed in the direction away from the heat preservation board 6, and one end of the first spring 7 is connected to the end wall of the concave cavity. When the glass kiln is working, the length of the second spring 4 can ensure that the heat preservation board 6 is always located in the small hole opened on the furnace wall 1, and can ensure that heat does not overflow from the small hole on the furnace wall, thereby maintaining a stable temperature field in the furnace.

[0044] When the glass kiln is working, the furnace lining 2 is heated and expanded, causing the second spring 4 to deform and generate pressure on the insulation board 6, and then the pressure is transmitted to the first spring 7 through the insulation board 6 to deform it, thereby generating pressure on the end wall of the cavity of the support frame 9. By providing support force for the first spring 7 and the entire heat-resistant force transmission component through the end wall of the cavity, it is ensured that the furnace lining 2 can obtain the support force from the support frame 9 when it expands due to heat. At the same time, the support frame 9 is sealedly installed on the furnace wall 1, which can ensure that the heat in the furnace does not overflow from the opening on the furnace wall 1 when the glass kiln is working, thereby ensuring the uniformity and stability of the temperature field in the glass kiln.

[0045] In some embodiments, an annular convex edge protruding radially outward is formed at one end of the support frame 9 facing the insulation board 6 , and the support frame 9 is detachably connected to the outer wall surface of the furnace wall 1 through the annular convex edge.

[0046] In some embodiments, Figure 2 As shown, the support frame 9 is connected to the furnace wall 1 by bolts located on the annular flange. Through the bolt connection, the support frame 9 can be disassembled to replace the various components of the support device in the present disclosure, thereby making the support device easy to repair and maintain.

[0047] In some embodiments, Figure 2 As shown, the support device also includes a pressure sensor 8 for measuring the pressure from the insulation board 6 on the first spring 7. When the glass kiln is working, the furnace lining 2 expands due to heat and squeezes the second spring 4, and the second spring 4 deforms to generate pressure on the insulation board 6. The first spring 7 connected to the insulation board 6 and the pressure sensor 8 is deformed, and the pressure sensor 8 can receive the pressure from the insulation board 6 through the first spring 7, and convert the pressure received into data output, through which the deformation degree of the first spring 7 and the second spring 4 can be judged, and then the deformation degree of the furnace lining 2 can be judged, so that the operator can stop the operation in time when the deformation degree of the furnace lining 2 is too large to affect the stability of the temperature field in the furnace. Therefore, the provision of the pressure sensor 8 can avoid excessive deformation of the furnace lining 2, thereby avoiding the instability of the temperature field in the glass kiln and the shortening of the service life of the furnace lining 2, and at the same time ensure that the quality of the products processed by the glass kiln is qualified, and there will be no product quality defects due to the deformation of the furnace lining 2.

[0048] In some embodiments, Figure 2As shown, the pressure sensor 8 is arranged between the first spring 7 and the support frame 9. On the premise that the pressure on the first spring 7 can be accurately measured, the position of the pressure sensor 8 can be arbitrarily set between the first spring 7 and the support frame 9 according to the model and type of the pressure sensor 8. Compared with setting the pressure sensor at other positions, by setting the pressure sensor 8 at the position between the first spring 7 and the support frame 9, it can be ensured that the pressure sensor 8 is isolated from the high temperature environment inside the glass furnace, so that the pressure sensor 8 can work normally at its working temperature, ensuring the accurate reading of the pressure sensor 8.

[0049] In a second aspect, the embodiments of the present disclosure further provide a glass furnace, such as Figure 1 As shown, the glass kiln includes a furnace lining 2 arranged on the inner side of the furnace wall 1 and the aforementioned supporting devices respectively supported at both ends of the furnace lining 2. When the glass kiln is working, its internal heat source heats the furnace environment for a long time, causing the furnace lining 2 to be deformed by heat, thereby affecting the temperature field in the furnace, thereby causing the quality of the products produced by the glass kiln to decrease. By installing the aforementioned supporting devices of the present disclosure at both ends of the furnace lining 2, the thermal deformation of the furnace lining 2 can be slowed down, thereby ensuring the stability of the temperature field in the glass kiln. At the same time, by slowing down the deformation of the furnace lining 2, the service life of the furnace lining 2 and the glass kiln can also be extended. In addition, the pressure sensor 8 on the supporting device enables the operator of the glass kiln to judge the degree of deformation of the furnace lining 2 by observing the obtained pressure data. When the degree of deformation exceeds the limit and affects the temperature field in the furnace, the glass kiln can be shut down in time to avoid producing unqualified products, thereby ensuring that the glass kiln of the present disclosure can always maintain a stable and uniform temperature field and stably produce high-quality glass products.

[0050] In some embodiments, Figure 3 As shown, the glass kiln of the present disclosure is a glass shaping furnace, and the material of its furnace lining 2 is silicon carbide. By adding the support and measuring device provided by the present disclosure at both ends of the shaping furnace, the silicon carbide furnace lining in the glass shaping furnace is supported, and the degree of expansion and deformation thereof in the long-term high-temperature working environment in the shaping furnace is reduced, so that the silicon carbide furnace lining can be ensured to work normally in a high-temperature environment of 800-1100°C, and a stable temperature gradient can be established in the shaping furnace, so that the shaping furnace can stably produce high-quality glass products.

[0051] So far, various embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0052] Although some specific embodiments of the present disclosure have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present disclosure. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict.

Claims

1. A supporting device for a glass furnace lining, characterized in that: include: A support frame (9) connected to a furnace wall (1) of a glass furnace; A heat-insulating plate (6) slidably arranged in the opening on the furnace wall (1); a first spring (7), the two ends of which are elastically abutted against the support frame (9) and the insulation board (6) respectively; and A heat-resistant force transmission component, the two ends of which are respectively connected to the insulation board (6) and the furnace lining (2) in the glass furnace, so as to be able to transmit the elastic force of the first spring (7) to the furnace lining (2).

2. The supporting device for glass furnace lining according to claim 1, characterized in that: The heat-resistant force transmission component comprises a second spring (4) whose two ends are respectively connected to the insulation board (6) and the furnace lining (2), and a heat insulation layer (3) sleeved outside the second spring (4).

3. The supporting device for glass furnace lining according to claim 2, characterized in that: The second spring (4) is an Inconel625 high temperature alloy spring.

4. The supporting device for glass furnace lining according to claim 2, characterized in that: The thermal insulation layer (3) is made of flexible material.

5. The supporting device for glass furnace lining according to claim 1, characterized in that: The inner side of the furnace wall (1) is provided with a wall insulation layer (5), and the insulation board (6) is made of the same material as the wall insulation layer (5).

6. The supporting device for glass furnace lining according to claim 1, characterized in that: The support frame (9) is sealed and covered on the outside of the opening on the furnace wall (1), and forms a concave cavity that is recessed in a direction away from the insulation board (6), and one end of the first spring (7) is connected to the end wall of the concave cavity.

7. The supporting device for glass furnace lining according to claim 6, characterized in that: An annular convex edge protruding radially outward is formed at one end of the support frame (9) facing the heat insulation plate (6), and is detachably connected to the outer wall surface of the furnace wall (1) via the annular convex edge.

8. The supporting device for glass furnace lining according to any one of claims 1 to 7, characterized in that: The supporting device further comprises a pressure sensor (8) for measuring the pressure exerted on the first spring (7) by the heat-insulating plate (6).

9. The supporting device for glass furnace lining according to claim 8, characterized in that: The pressure sensor (8) is arranged between the first spring (7) and the support frame (9).

10. A glass furnace, characterized in that: The glass furnace comprises a furnace lining (2) arranged on the inner side of a furnace wall and a supporting device according to any one of claims 1 to 9 respectively supported at two ends of the furnace lining (2).

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