Annealing furnace

Abstract

The utility model provides an annealing furnace. The annealing furnace comprises a furnace body assembly, the traction assembly is connected with the inner wall of the furnace body assembly; the heat insulation assembly is connected with the inner wall of the furnace body assembly, the height of the heat insulation assembly in the vertical direction is larger than that of the traction assembly, the heat insulation assembly comprises a first heat insulation section structure, a second heat insulation section structure and an opening structure, and the second heat insulation section structure is connected with the first heat insulation section structure; the opening structure is located on the side, away from the first heat insulation section structure, of the second heat insulation section structure and corresponds to the traction assembly, and the height of the second heat insulation section structure is continuously increased in the direction close to and away from the opening structure. According to the technical scheme, the problem that in the glass annealing process in the prior art, due to rising of high-temperature airflow, the temperature of an upper temperature field is difficult to regulate and control is effectively solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of glass processing, and in particular to an annealing furnace. BACKGROUND

[0002] With the continuous development of science and technology, cover glass is applied in many different fields, such as architecture, home and electronic products, which are indispensable in daily life.

[0003] In the glass processing process, in order to remove the internal stress of the glass, prevent the glass from breaking on its own during subsequent cooling, storage and use, and improve the strength and stability of the glass, the glass usually needs to be annealed by using an annealing furnace.

[0004] In the prior art, the heat insulation plate inside the annealing furnace cannot effectively prevent the high-temperature airflow from rising, which affects the temperature regulation of the upper temperature field and is not conducive to the annealing process, such as CN102491628A. CONTENT OF THE UTILITY MODEL

[0005] One of the technical problems to be solved by the present application is that in the glass annealing process, the high-temperature airflow rising causes difficulty in temperature regulation of the upper temperature field.

[0006] To solve the above technical problems, the present application provides an annealing furnace.

[0007] The annealing furnace provided by the present application comprises: a furnace body assembly; a traction assembly connected with the inner wall of the furnace body assembly; a heat insulation assembly connected with the inner wall of the furnace body assembly, the height of the heat insulation assembly in the vertical direction being higher than that of the traction assembly, the heat insulation assembly comprising a first heat insulation section structure, a second heat insulation section structure and an opening structure, the second heat insulation section structure being connected with the first heat insulation section structure, the opening structure being located on the side of the second heat insulation section structure away from the first heat insulation section structure and being correspondingly arranged with the traction assembly, and the height of the second heat insulation section structure increasing constantly along the direction from the opening structure to the first heat insulation section structure.

[0008] In some embodiments, the cross-sectional shape of the second heat insulation section structure is arc-shaped.

[0009] In some embodiments, the traction assembly comprises a first traction roller structure and a second traction roller structure, both of which are rotatably connected with the furnace body assembly and are arranged in parallel, and the first traction roller structure and the second traction roller structure have a spacing therebetween, the projection of the spacing in the vertical direction being located at the middle line position of the projection of the opening structure in the vertical direction.

[0010] In some embodiments, the first heat insulation section structure comprises two, the second heat insulation section structure comprises two, the two second heat insulation section structures are connected with the two first heat insulation section structures respectively, and the two second heat insulation section structures have a predetermined distance, i.e. an opening structure.

[0011] In some embodiments, the two second heat insulation section structures each comprise a plurality of second heat insulation sections, the plurality of second heat insulation sections are connected with the corresponding first heat insulation section structure, and the adjacent second heat insulation sections have a predetermined gap.

[0012] In some embodiments, the gap between the adjacent second heat insulation sections is 5mm to 10mm.

[0013] In some embodiments, the heat insulation assembly is an integrally formed structure.

[0014] In some embodiments, the thickness of the heat insulation assembly is 2mm to 3.5mm.

[0015] In some embodiments, the distance between the two second heat insulation section structures is less than the distance between the axis of the first traction roller structure and the axis of the second traction roller structure.

[0016] In some embodiments, the annealing furnace further comprises a reinforcing assembly connected with the heat insulation assembly.

[0017] Through the above technical solution, the annealing furnace provided by the present application is used to pull the glass from bottom to top by the traction assembly and pass through the opening structure, so that the glass is sequentially annealed by the lower temperature field and the upper temperature field. The high-temperature air of the lower temperature field rises to the upper temperature field from the opening structure, the second heat insulation section structure plays a guiding role on the rising air flow, so that the air flow moves towards the first heat insulation section structure and is blocked by the first heat insulation section structure and the second heat insulation section structure, effectively reducing the rising of the high-temperature gas below. The technical solution of the present application effectively solves the problem of temperature regulation difficulty of the upper temperature field caused by the rising of high-temperature air flow in the glass annealing process in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed in the embodiment or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0019] Figure 1 A front view of the main structure of the annealing furnace disclosed in the first embodiment of the present application is shown.

[0020] Figure 2 A front view of the main structure of the annealing furnace disclosed in the first embodiment of the present application is shown. Figure 1a schematic view of a top sectional structure of the annealing furnace of the present application;

[0021] Figure 3 a schematic view of a sectional structure of the annealing furnace of the present application is shown. Figure 2 a schematic view of a sectional structure of the annealing furnace of the present application is shown.

[0022] Figure 4 a schematic view of a sectional structure of the annealing furnace of the present application is shown.

[0023] Explanation of Reference Signs:

[0024] 10, furnace body assembly; 20, traction assembly; 21, first traction roller structure; 22, second traction roller structure; 30, heat insulation assembly; 31, first heat insulation section structure; 32, second heat insulation section structure; 321, second heat insulation section; 33, opening structure; 40, reinforcing assembly; 41, reinforcing structure. DETAILED DESCRIPTION

[0025] The embodiments of the present application will be described in further detail below with reference to the drawings and embodiments. The following detailed description of the embodiments and the drawings are intended to exemplify the principles of the present application, but should not be used to limit the scope of the present application, which can be realized in many different forms, not limited to the specific embodiments of the present application, but includes all technical solutions falling within the scope of the claims.

[0026] The present application provides these embodiments in order to make the present application thorough and complete, and fully express the scope of the present application to those skilled in the art. It should be noted that: unless otherwise specified, the relative arrangement of components and steps, the composition of materials, numerical expressions and values set forth in these embodiments should be interpreted as merely exemplary, and not as a limitation.

[0027] It should be noted that, in the description of the present application, unless otherwise specified, the meaning of "a plurality of" is greater than or equal to two; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer" and the like is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0028] In addition, "first", "second", and similar words used in the present application do not indicate any order, number or importance, but are only used to distinguish different parts. "Vertical" is not strictly vertical, but within the allowable range of error. "Parallel" is not strictly parallel, but within the allowable range of error. "Include" or "contain" and similar words mean that the elements before the word cover the elements listed after the word, and do not exclude the possibility of also covering other elements.

[0029] It should also be noted that in the description of the present application, unless otherwise explicitly specified and limited, the terms "mount", "connect", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. When it is described that a specific device is located between the first device and the second device, there can be or can not be an intermediate device between the specific device and the first device or the second device.

[0030] All terms used in the present application have the same meaning as understood by those skilled in the art to which the present application belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted to have meanings consistent with their meanings in the context of the relevant art, and should not be interpreted in an idealized or excessively formalized sense, unless specifically defined here.

[0031] Techniques, methods and devices known to those skilled in the relevant art can not be discussed in detail, but in appropriate cases, the techniques, methods and devices should be considered as part of the specification.

[0032] As Figures 1 to 3 shown, the annealing furnace disclosed by the embodiment of the present application comprises a furnace body assembly 10, a traction assembly 20 and a heat insulation assembly 30, the traction assembly 20 is connected with the inner wall of the furnace body assembly 10, the heat insulation assembly 30 is connected with the inner wall of the furnace body assembly 10, the height of the heat insulation assembly 30 in the vertical direction is higher than that of the traction assembly 20, the heat insulation assembly 30 comprises a first heat insulation section structure 31, a second heat insulation section structure 32 and an opening structure 33, the second heat insulation section structure 32 is connected with the first heat insulation section structure 31, the opening structure 33 is located on the side of the second heat insulation section structure 32 away from the first heat insulation section structure 31, and is arranged correspondingly with the traction assembly 20, along the direction from close to the opening structure 33 to far away from the opening structure 33, the height of the second heat insulation section structure 32 increases constantly.

[0033] The glass is pulled from bottom to top by the pulling assembly 20 and passes through the opening structure 33, so as to be annealed in turn by the lower temperature field and the upper temperature field. The high-temperature air of the lower temperature field rises to the upper temperature field from the opening structure 33, and the second heat insulation section structure 32 plays a guiding role on the rising air flow, so that the air flow moves towards the first heat insulation section structure 31 and is blocked by the first heat insulation section structure 31 and the second heat insulation section structure 32, effectively reducing the rising of the high-temperature gas below. The technical scheme of example one effectively solves the problem of difficult temperature regulation of the upper temperature field caused by the rising of high-temperature air flow in the glass annealing process in the prior art.

[0034] As shown in Figure 1 In the technical scheme of example one, the cross-sectional shape of the second heat insulation section structure 32 is arc-shaped. The arc-shaped second heat insulation section structure 32 has good guiding effect and conforms to the air flow movement law, and is not easy to produce turbulence, avoiding affecting the process of the lower temperature field.

[0035] As shown in Figure 1 and Figure 2 In the technical scheme of example one, the pulling assembly 20 includes a first pulling roller structure 21 and a second pulling roller structure 22, both of which are rotatably connected with the furnace body assembly 10 and are arranged in parallel. The first pulling roller structure 21 and the second pulling roller structure 22 have a gap therebetween, and the projection of the gap in the vertical direction is located at the middle line position of the projection of the opening structure 33 in the vertical direction. The glass passes through the gap and the opening structure 33, and the first pulling roller structure 21 and the second pulling roller structure 22 jointly act on the glass by reverse rotation to drive the glass to move. The opening structure 33 is provided to leave space for the glass to pass through. The projection width of the opening structure 33 in the vertical direction is greater than the distance between the first pulling roller structure 21 and the second pulling roller structure 22, avoiding collision between the glass and the second heat insulation section structure 32 during the movement of the glass.

[0036] As shown in Figures 1 to 3As shown, in the technical solution of Embodiment 1, the first heat insulation section structure 31 includes two sections, and the second heat insulation section structure 32 includes two sections. The two second heat insulation section structures 32 are respectively connected to the two first heat insulation section structures 31, and there is a predetermined distance between the two second heat insulation section structures 32, i.e., an opening structure 33. The two first heat insulation section structures 31 are respectively arranged corresponding to the first traction roller structure 21 and the second traction roller structure 22 to avoid the problem of high-temperature airflow rising from a distance on both sides of the traction assembly 20. The predetermined distance between the second heat insulation section structure 32 and the first traction roller structure 21 and the second traction roller structure 22 avoids the problem of collision between the first traction roller structure 21 and the second traction roller structure 22 and the upper second heat insulation section 321 during the rotation of the second traction roller structure 21 and the second traction roller structure 22, which would cause structural damage. The two second heat insulation section structures 32 guide the high-temperature rising airflow from a distance on both sides of the traction assembly 20, causing the gas to move to a distance from the traction assembly 20, and preventing the airflow from rising to the upper temperature field above the heat insulation assembly 30, which would affect the upper process adjustment.

[0037] like Figures 1 to 3 As shown, in the technical solution of Embodiment 1, each of the two second heat insulation section structures 32 includes multiple second heat insulation sections 321, and each multiple second heat insulation section 321 is connected to a corresponding first heat insulation section structure 31. A predetermined gap exists between adjacent second heat insulation sections 321. The gap between the multiple second heat insulation sections 321 prevents the second heat insulation sections 321 from expanding and deforming under high-temperature conditions, thus avoiding contact with the lower first traction roller structure 21 and second traction roller structure 22, which could damage the traction assembly 20 and affect glass traction.

[0038] like Figures 1 to 3 As shown, in the technical solution of Embodiment 1, the gap between adjacent second heat insulation sections 321 is 5mm to 10mm. The gap between adjacent second heat insulation sections 321 is d, as shown... Figure 3 As shown, when the gap between adjacent second insulation sections 321 is less than 5mm, the adjacent second insulation sections 321 are prone to collision and mutual compression after expansion, and the second insulation sections 321 are prone to deformation, affecting service life; when the gap between adjacent second insulation sections 321 is greater than 10mm, more high-temperature rising airflow is prone to pass through the gap between adjacent second insulation sections 321 and move to the upper temperature field, affecting the process stability of the upper temperature field.

[0039] like Figures 1 to 3 As shown, in the technical solution of Embodiment 1, the heat insulation component 30 is a one-piece molded structure. The one-piece molded structure is more stable in high-temperature environments, which helps to improve the service life of the entire heat insulation component 30 and slows down its deformation.

[0040] like Figures 1 to 3As shown, in the technical solution of Embodiment 1, the thickness of the heat insulation component 30 is 2mm to 3.5mm. When the thickness of the heat insulation component 30 is less than 2mm, the heat insulation component 30 is relatively thin, is greatly affected by temperature, is prone to deformation, and has poor heat insulation effect; when the thickness of the heat insulation component 30 is greater than 3.5mm, the mass of the heat insulation component 30 is large, the second heat insulation section structure 32 is prone to sagging, causing the entire heat insulation component 30 to deform, and in severe cases, it will also affect the rotation of the lower traction component 20.

[0041] like Figures 1 to 3 As shown, in the technical solution of Embodiment 1, the distance between the two second heat insulation section structures 32 is less than the distance between the axis of the first traction roller structure 21 and the axis of the second traction roller structure 22. While ensuring that the opening structure 33 allows glass to pass through, the smaller the distance between the two second heat insulation section structures 32, the better it is at blocking the rising of high-temperature gas below.

[0042] like Figures 1 to 3 As shown, in the technical solution of Embodiment 1, the annealing furnace further includes a reinforcing component 40, which is connected to the heat insulation component 30. One end of the reinforcing component 40 is connected to the second heat insulation section structure 32, and the other end is fixed to the heat insulation structure inside the furnace body assembly 10 to prevent the second heat insulation section structure 32 from deforming or sagging due to long-term exposure to high temperatures. The reinforcing component 40 includes multiple reinforcing structures 41, with two reinforcing structures 41 corresponding to each second heat insulation section 321. The reinforcing structures 41 are located near the edge of the second heat insulation section 321 to provide good support for the second heat insulation section 321 and prevent the corners of the second heat insulation section 321 from sagging.

[0043] The difference between the technical solution of Embodiment 2 and Embodiment 1 is that the second heat insulation section structure 32 in Embodiment 2 is an inclined surface. After connecting the reinforcing component 40, the inclined surface and the reinforcing component 40 can form a stable triangular structure with higher strength. The second heat insulation section structure 32 is less prone to deformation and sagging, and the service life of the heat insulation component 30 is longer. Furthermore, compared with the arc-shaped second heat insulation section structure 32, the inclined second heat insulation section structure 32 requires less sheet material during processing, resulting in lower costs.

[0044] As can be comprehended from the above, the heat insulation baffle (heat insulation assembly 30) is composed of a mounting plate (first heat insulation section structure 31), an arc plate (second heat insulation section structure 32) and a reinforcing rib (reinforcing assembly 40) which are welded together, and is mounted between the upper and lower furnace cavities (furnace body assembly 10) to divide the temperature field. The second heat insulation section structure 32 is designed in an arc shape to have the function of making the lower upward airflow return, and the upper falling objects will not easily slide down to prevent material accumulation. This design greatly reduces the influence of the lower airflow on the upper temperature field, and facilitates independent regulation and control of the upper and lower temperature fields. During installation, the reinforcing assembly 40 is supported on the heat preservation frame to form a stable triangular support structure, which increases the strength of the arc plate and avoids deformation under long-term high-temperature conditions, preventing the arc plate edges and corners at the expansion joint from sagging and causing wear of the pulling roller. The front fire baffle (heat insulation assembly 30) is designed in a circular arc shape to make the lower upward airflow return, which to some extent reduces the influence of the lower temperature field on the upper temperature field, and better plays the role of temperature field zoning. The design of the reinforcing rib increases its strength and avoids deformation under long-term high-temperature working conditions.

[0045] Thus, the embodiments of the present application have been described in detail. In order not to obscure the concept of the present application, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions of the present application according to the above description.

[0046] Although some specific embodiments of the present application have been described in detail through examples, those skilled in the art should understand that the above examples are only for illustration and are not intended to limit the scope of the present application. Those skilled in the art should understand that the above embodiments can be modified or some technical features can be replaced equivalently without departing from the scope and spirit of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way.

Claims

1. An annealing furnace, characterized by, The furnace body assembly (10) comprises: a traction assembly (20) connected to the inner wall of the furnace body assembly (10); a heat insulation assembly (30) connected to the inner wall of the furnace body assembly (10), the height of the heat insulation assembly (30) in the vertical direction being higher than that of the traction assembly (20), the heat insulation assembly (30) comprising a first heat insulation section structure (31), a second heat insulation section structure (32) connected to the first heat insulation section structure (31), and an opening structure (33) located on the side of the second heat insulation section structure (32) away from the first heat insulation section structure (31) and corresponding to the traction assembly (20), the height of the second heat insulation section structure (32) increasing in the direction from the opening structure (33). The cross-sectional shape of the second heat insulation section structure (32) is arc-shaped.

2. The annealing furnace according to claim 1, characterized in that, The traction assembly (20) comprises a first traction roller structure (21) and a second traction roller structure (22), both of which are rotatably connected to the furnace body assembly (10) and arranged in parallel, and there is a gap between the first traction roller structure (21) and the second traction roller structure (22), the projection of the gap in the vertical direction being located at the middle line position of the projection of the opening structure (33) in the vertical direction.

3. The annealing furnace of claim 1, wherein The first heat insulation section structure (31) comprises two, and the second heat insulation section structure (32) comprises two, each of the two second heat insulation section structures (32) being connected to the two first heat insulation section structures (31), and the two second heat insulation section structures (32) having a predetermined distance, i.e. the opening structure (33).

4. The annealing furnace according to claim 3, characterized in that Each of the two second heat insulation section structures (32) comprises a plurality of second heat insulation sections (321), each of the plurality of second heat insulation sections (321) being connected to the corresponding first heat insulation section structure (31), and adjacent second heat insulation sections (321) having a predetermined gap.

5. The annealing furnace of claim 4, wherein The gap between adjacent second heat insulation sections (321) is 5-10 mm.

6. The annealing furnace of claim 5, wherein The heat insulation assembly (30) is an integral structure.

7. The annealing furnace of claim 1, wherein The thickness of the heat insulation assembly (30) is 2-3.5 mm.

8. The annealing furnace of claim 7, wherein The distance between the two second heat insulation section structures (32) is less than the distance between the axes of the first traction roller structure (21) and the second traction roller structure (22).

9. The annealing furnace of claim 4, wherein The annealing furnace further comprises a reinforcing assembly (40) connected to the heat insulation assembly (30).

10. The annealing furnace of claim 1, wherein ​

Images