Annealing furnace with segmented temperature control

Abstract

The application relates to the technical field of glass bottle annealing, in particular to an annealing furnace with segmented temperature control, which comprises a conveying belt, a furnace body, heating pieces and a turbulence component. The furnace body is arranged on the conveying belt, the conveying belt is used for carrying glass bottles and is arranged in the furnace body, the furnace body is sequentially divided into a heating section, a heat preservation section and a cooling section, the heating pieces are arranged on the heating section and the heat preservation section of the furnace body, the turbulence component is arranged at least on the heating section and the heat preservation section of the furnace body, the turbulence component comprises a linear reciprocating driving piece and a turbulence piece, the linear reciprocating driving piece drives the turbulence piece to perform linear reciprocating motion, the moving direction of the turbulence piece is arranged perpendicularly to the conveying direction of the conveying belt, and the turbulence piece is used for forcing the air above the glass bottles to flow. In the application, the turbulence piece performs linear reciprocating motion, so that the gas flows in the width direction of the furnace body, the glass bottles on the conveying belt can be uniformly heated, the balance of the glass bottle annealing is improved, and the production quality of the glass bottles is improved.

Description

Technical Field

[0001] This application relates to the field of glass bottle annealing technology, and in particular to an annealing furnace with segmented temperature control. Background Technology

[0002] The general production process of glass bottles is as follows: various raw materials are precisely mixed using a mixer, and the furnace transforms the solid raw materials into molten glass. The bottle-making machine transforms the molten glass into glass preforms. During the forming process, uneven cooling of different parts of the glass bottle will generate "internal stress". Subsequently, after the glass bottle is sent into the annealing furnace, it is slowly heated, held at the temperature and cooled to release the internal stress of the glass bottle, thereby reducing the risk of the glass bottle breaking on its own without external force or exploding when subjected to slight impact or temperature change (such as when filled with hot liquid).

[0003] In existing technology, a conveyor belt smoothly transports the formed glass bottles through various temperature sections of the furnace to complete the annealing process. Because the heating elements of the annealing furnace are located on the side walls of the furnace on both sides of the conveyor belt, a temperature difference exists between the middle and outer parts of the conveyor belt, thus affecting the heating rate between the outer and middle glass bottles. Utility Model Content

[0004] In order to improve the uniformity of temperature rise of glass bottles on the conveyor belt and improve the production quality of glass bottles, this application provides an annealing furnace with segmented temperature control.

[0005] This application provides an annealing furnace with segmented temperature control, which adopts the following technical solution: An annealing furnace with segmented temperature control includes a conveyor belt, a furnace body, a heating element, and a baffle assembly. The furnace body is mounted on the conveyor belt, which carries glass bottles through the furnace body. Along the conveying direction of the glass bottles, the furnace body is sequentially divided into a heating section, a heat preservation section, and a cooling section. The heating element is disposed on the heating section and the heat preservation section of the furnace body. The baffle assembly is disposed at least in the heating section and the heat preservation section of the furnace body. The baffle assembly includes a linear reciprocating drive and a baffle. The linear reciprocating drive drives the baffle to perform linear reciprocating motion. The moving direction of the baffle is perpendicular to the conveying direction of the conveyor belt. The baffle is used to force airflow above the glass bottles.

[0006] By adopting the above technical solution, when the conveyor belt carries the glass bottle through the furnace, the linear reciprocating drive in the turbulence assembly drives the turbulence component to make linear reciprocating motion, thereby making the gas flow in the width direction of the furnace, so as to improve the temperature uniformity of the outer and middle areas of the conveyor belt, so that the glass bottle on the conveyor belt can be heated evenly, improve the uniformity of the annealing of the glass bottle, and improve the production quality of the glass bottle.

[0007] Optionally, the spoiler includes two symmetrically arranged spoilers, and the included angle between the two spoilers in the vertical direction is an obtuse angle.

[0008] By adopting the above technical solution, the two baffles are set at an obtuse angle. When the baffles make linear reciprocating motion, they can promote the gas to flow along the length of the conveyor belt. Along the conveying direction of the conveyor belt, the temperature inside the furnace can be smoothly transitioned, ensuring that the internal stress of the glass bottle can be fully released and avoiding the risk of residual stress inside the glass bottle due to excessive temperature changes.

[0009] Optionally, the spoiler plate is provided with a plurality of through holes spaced apart.

[0010] By adopting the above technical solution, the baffle plate is provided with through holes, which can promote the flow of gas in different areas; thus, along the width direction of the furnace body, the uniformity of air temperature inside the furnace body can be improved.

[0011] Optionally, the distance from the spoiler to the conveyor belt increases along the width direction of the conveyor belt.

[0012] By adopting the above technical solution, the distance between the baffle and the conveyor belt increases, so that when the baffle moves toward the opening, it can force the air above the glass bottle to flow downward, thereby improving the heating effect of the air on the glass bottle and improving the annealing efficiency of the glass bottle.

[0013] Optionally, the deflector may further include a baffle, which is disposed on the side of the deflector away from the conveyor belt.

[0014] By adopting the above technical solution, the baffle is set above the baffle, which can force more gas to flow along the conveyor belt direction, thereby improving the uniformity of air temperature changes in the furnace.

[0015] Optionally, the baffle is horizontally positioned to block the upward flow of gas.

[0016] By adopting the above technical solution, the baffle is set above the baffle, which can force more gas to flow along the conveyor belt direction, thereby improving the uniformity of air temperature changes in the furnace.

[0017] Optionally, the angle between the two spoilers is a flat angle, with one side being the outer side. The spoiler also includes a plurality of first guide strips, which are horizontally arranged on the outer side of the spoiler and along the vertical direction. The plurality of first guide strips are spaced apart. A flow channel for gas flow is formed between adjacent first guide strips.

[0018] By adopting the above technical solution and setting a second guide strip on the outside of the spoiler, it is beneficial to the flow of gas in the conveyor belt conveying direction.

[0019] Optionally, the obtuse angle between the two baffles is the outer side, and the baffle also includes a plurality of second guide strips. The second guide strips are vertically arranged on the inner side of the baffles and along the conveying direction of the conveyor belt. The plurality of second guide strips are spaced apart, and a flow channel for gas flow is formed between adjacent second guide strips.

[0020] By adopting the above technical solution and setting a second guide strip on the inner side of the spoiler, it is beneficial for the upper air to flow downward, thereby further improving the heating efficiency of the glass bottle.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. When the conveyor belt carries the glass bottles through the furnace, the linear reciprocating drive in the turbulence assembly drives the turbulence component to make linear reciprocating motion, thereby making the gas flow in the width direction of the furnace to improve the temperature uniformity of the outer and middle areas of the conveyor belt, so that the glass bottles on the conveyor belt can be heated evenly, improve the uniformity of the annealing of the glass bottles, and improve the production quality of the glass bottles. 2. The two baffles are set at an obtuse angle. When the baffles move in a straight reciprocating motion, they can promote the flow of gas along the length of the conveyor belt. Along the conveying direction of the conveyor belt, the temperature inside the furnace can be smoothly transitioned, ensuring that the internal stress of the glass bottle can be fully released and avoiding the risk of residual stress inside the glass bottle due to excessive temperature changes. 3. The distance between the baffle and the conveyor belt increases gradually, so that when the baffle moves toward the opening, it can force the air above the glass bottle to flow downward, thereby improving the heating effect of the air on the glass bottle and improving the annealing efficiency of the glass bottle. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the annealing furnace in this embodiment.

[0023] Figure 2 This is a partial cross-sectional view of the annealing furnace in this embodiment.

[0024] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0025] Figure 4 This is a schematic diagram of the flow-around component in this embodiment.

[0026] Figure 5 yes Figure 2 Enlarged view of point B in the middle.

[0027] Figure 6 This is a schematic diagram of the flow-around component in this embodiment.

[0028] Explanation of reference numerals in the attached drawings: 1. Conveyor belt; 2. Furnace body; 21. Heating section; 22. Insulation section; 23. Cooling section; 231. Vent hole; 3. Heating element; 4. Baffle assembly; 41. Linear reciprocating drive element; 42. Baffle element; 421. Baffle plate; 4211. Through hole; 4212. Outer side; 4213. Inner side; 422. Baffle; 423. First guide bar; 424. Second guide bar. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1 -6 provides further detailed information about this application.

[0030] This application discloses an annealing furnace with segmented temperature control. (Refer to...) Figure 1 and Figure 2 An annealing furnace with segmented temperature control includes a conveyor belt 1, a furnace body 2, a heating element 3, and a turbulence evacuation assembly 4.

[0031] Reference Figure 1 and Figure 2 The furnace body 2 is mounted on a conveyor belt 1, which carries glass bottles through the furnace body 2. Along the conveying direction of the glass bottles, the furnace body 2 is sequentially divided into a heating section 21, a heat preservation section 22, and a cooling section 23. Heating elements 3 are installed on the heating section 21 and the heat preservation section 22 of the furnace body 2. The heating elements 3 heat the air, thus maintaining the temperature in the heating section 21 between 500℃ and 600℃, allowing the glass bottles to fully release internal stress. The temperature in the heat preservation section 22 remains constant to ensure uniform stress release in the glass bottles. The temperature in the cooling section 23 of the furnace body 2 slowly decreases to room temperature to avoid generating new stress in the glass bottles. The cooling section 23 of the furnace body 2 may initially have several vent holes 231 to slowly reduce the temperature of the cooling section 23 in the furnace body 2. The heating element 3 can be a resistance heating tube, a silicon carbide rod, a natural gas heating assembly, etc. This application does not limit the specific structure of the heating element 3.

[0032] Reference Figure 1 and Figure 2 The annealing furnace body 2 is divided into a heating section 21, a holding section 22, and a cooling section 23, allowing for segmented temperature control within the furnace body 2. This ensures the annealing effect of the glass bottles and allows them to fully release internal stress. In existing technology, temperature sensing elements can be installed on the inner side 4213 of the furnace body 2, and a control system consisting of a PLC (Programmable Logic Controller) and a touch screen can be used to control the temperature of different sections within the furnace body 2.

[0033] Reference Figure 1 and Figure 2The turbulence-disrupting component 4 is at least provided in the heating section 21 and the heat preservation section 22 of the furnace body 2; in this embodiment, the heating section 21, the heat preservation section 22 and the cooling section 23 of the furnace body 2 are all provided with flow-disrupting components. The turbulence-disrupting component 4 includes a linear reciprocating drive 41 and a turbulence-disrupting component 42. The linear reciprocating drive 41 drives the turbulence-disrupting component 42 to perform linear reciprocating motion. The moving direction of the turbulence-disrupting component 42 is perpendicular to the conveying direction of the conveyor belt 1. The turbulence-disrupting component 42 is used to force the air above the glass bottle to flow.

[0034] Reference Figure 3 and Figure 4 In this embodiment, the baffle 42 includes two symmetrically arranged baffles 421, a baffle 422, a first guide strip 423, and a second guide strip 424. In the vertical direction, the included angle between the two baffles 421 is an obtuse angle. When the baffle 42 performs a linear reciprocating motion, it can promote the flow of gas along the length of the conveyor belt 1. Along the conveying direction of the conveyor belt 1, it can improve the smooth transition of temperature within the furnace body 2, ensuring that the internal stress of the glass bottle can be fully released and avoiding the risk of residual stress within the glass bottle due to excessive temperature changes. Several through holes 4211 are spaced apart on the baffles 421 to promote the flow of gas between different areas, thereby improving the uniformity of air temperature within the furnace body 2 along its width.

[0035] Reference Figure 3 and Figure 4 In this embodiment, the distance between the baffle 421 and the conveyor belt 1 increases along the width direction of the conveyor belt 1. This increasing distance forces the air above the glass bottle to flow downwards as the baffle 421 moves toward the opening, thereby improving the heating effect of the air on the glass bottle and increasing the annealing efficiency of the glass bottle.

[0036] Reference Figure 5 and Figure 6 The baffle 422 is horizontally positioned on the side of the baffle 421 away from the conveyor belt 1. The baffle 422 is used to block the upward flow of gas; thereby, more gas can be forced to flow along the conveying direction of the conveyor belt 1 to improve the uniformity of air temperature changes inside the furnace body 2.

[0037] Reference Figure 5 and Figure 6 In this embodiment, the side with a straight angle between the two spoilers 421 is defined as the outer side 4212, and the side with an obtuse angle between the two spoilers 421 is defined as the outer side 4212.

[0038] Reference Figure 5 and Figure 6The first guide strip 423 is horizontally arranged on the outside of the baffle 4212 and along the vertical direction, and several first guide strips 423 are spaced apart; a flow channel for gas flow is formed between adjacent first guide strips; which is conducive to the flow of gas in the conveying direction of the conveyor belt 1.

[0039] Reference Figure 5 and Figure 6 The second guide bar 424 is vertically arranged on the inner side 4213 of the baffle 421. Along the conveying direction of the conveyor belt 1, several second guide bars 424 are arranged at intervals, and a flow channel for gas flow is formed between adjacent second guide bars 424; this facilitates the downward flow of air in the upper part, so as to further improve the heating efficiency of the glass bottle.

[0040] The implementation principle of an annealing furnace with segmented temperature control according to an embodiment of this application is as follows: Reference Figure 2 When the conveyor belt 1 carries the glass bottle through the furnace body 2, the linear reciprocating drive 41 in the turbulence assembly 4 drives the turbulence member 42 to make linear reciprocating motion, thereby making the gas flow in the width direction of the furnace body 2, so as to improve the temperature uniformity of the outer side 4212 and the middle area of ​​the conveyor belt 1, so that the glass bottle on the conveyor belt 1 can be heated evenly, improve the uniformity of the annealing of the glass bottle, and improve the production quality of the glass bottle.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An annealing furnace with segmented temperature control, characterized in that: The furnace includes a conveyor belt (1), a furnace body (2), a heating element (3), and a turbulence-inducing assembly (4). The furnace body (2) is mounted on the conveyor belt (1), which carries glass bottles through the furnace body (2). Along the conveying direction of the glass bottles, the furnace body (2) is divided into a heating section (21), a heat preservation section (22), and a cooling section (23). The heating element (3) is located in the heating section (21) and the heat preservation section (22) of the furnace body (2). Above; the turbulence component (4) is at least provided in the heating section (21) and the heat preservation section (22) of the furnace body (2). The turbulence component (4) includes a linear reciprocating drive (41) and a turbulence component (42). The linear reciprocating drive (41) drives the turbulence component (42) to make linear reciprocating motion. The moving direction of the turbulence component (42) is perpendicular to the conveying direction of the conveyor belt (1). The turbulence component (42) is used to force the air above the glass bottle to flow.

2. The annealing furnace with segmented temperature control according to claim 1, characterized in that: The spoiler (42) includes two symmetrically arranged spoilers (421), and the included angle between the two spoilers (421) in the vertical direction is an obtuse angle.

3. The annealing furnace with segmented temperature control according to claim 2, characterized in that: The spoiler (421) has a plurality of through holes (4211) spaced apart.

4. The annealing furnace with segmented temperature control according to claim 3, characterized in that: Along the width direction of the conveyor belt (1), the distance from the spoiler (421) to the conveyor belt (1) increases.

5. The annealing furnace with segmented temperature control according to claim 3, characterized in that: The turbulence-disrupting element (42) further includes a baffle (422), which is disposed on the side of the turbulence-disrupting plate (421) away from the conveyor belt (1).

6. The annealing furnace with segmented temperature control according to claim 5, characterized in that: The baffle (422) is set horizontally and is used to block the upward flow of gas.

7. The annealing furnace with segmented temperature control according to claim 3, characterized in that: The two baffles (421) are at a flat angle, with one side being the outer side (4212). The baffle (42) also includes a plurality of first guide strips (423). The first guide strips (423) are horizontally arranged on the outer side (4212) of the baffles (421) and in the vertical direction. The plurality of first guide strips (423) are spaced apart. A flow channel for gas flow is formed between adjacent first guide strips (423).

8. The annealing furnace with segmented temperature control according to claim 3, characterized in that: The angle between the two baffles (421) is obtuse, with one side being the outer side (4212). The baffle (42) also includes several second guide strips (424). The second guide strips (424) are vertically arranged on the inner side (4213) of the baffles (421). Along the conveying direction of the conveyor belt (1), several second guide strips (424) are spaced apart, and a flow channel for gas flow is formed between adjacent second guide strips (424).

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