A sinking cavity annular heating system for realizing uniform heating of a backing plate

Abstract

The application discloses a sinking cavity annular heating system for realizing uniform heating of a lining plate and relates to the technical field of dry pots. The sinking cavity annular heating system for realizing uniform heating of a lining plate is characterized in that the heating wires are arranged in an annular structure on the reflecting plate and uniformly heat the lining plate from the circumference of the lining plate. When the heating wires work, heat is gathered from all directions to the center of the lining plate, thereby avoiding the problems of excessive concentration or uneven distribution of local heat in the traditional heating mode, ensuring that all regions on the lining plate can obtain relatively consistent heat, realizing comprehensive and uniform drying treatment of water vapor attached to the lining plate, and effectively improving the drying efficiency and effect.

Description

Technical Field

[0001] This invention relates to the field of dry pot technology, specifically to a recessed cavity annular heating system that enables uniform heating of the liner. Background Technology

[0002] In the dry pot heating process, the lining plate inside the sinking chamber is an important component that carries materials or participates in the reaction, and it has extremely high requirements for heating uniformity.

[0003] Prior art (Chinese Patent No. CN111347548B, Publication Date: 2025-07-25) discloses a crucible forming device and method, relating to the field of metal smelting technology. The main technical solution is as follows: a crucible forming device is used to prepare a forming layer covering the outer wall of the crucible body to adapt the crucible to the heating coil of the smelting equipment; wherein, the crucible forming device includes a mold; the mold has a cavity for accommodating the crucible body; wherein, when the crucible body is placed in the mold cavity, a set gap is left between the cavity wall and the crucible body for filling with forming material; wherein, after heating the mold containing the crucible body and the forming material, the crucible with the forming layer is obtained by demolding, mainly used to shorten the time for changing crucibles on smelting equipment and improve the production efficiency of metal materials.

[0004] There is also a prior art (Chinese patent CN107604318B, published on 2019-10-15) of a crucible heating device, comprising a housing shell, a hinged cover, and a first heating element. The hinged cover is disposed above the housing shell and has a closed state and an open state. When the hinged cover is closed, it and the housing shell form a heating cavity for accommodating a crucible. The crucible includes a crucible body and a nozzle disposed above the crucible body. The first heating element is located in the heating cavity and is used to heat the crucible body of the crucible in the heating cavity. The hinged cover is provided with a through hole. When the hinged cover is closed, the nozzle of the crucible in the heating cavity is located in the through hole. A second heating element is disposed in the through hole and is used to heat the nozzle located in the through hole, which can reduce the clogging of the crucible nozzle.

[0005] While existing technologies have made some progress in the field of crucible heating, for example, existing technology one focuses on solving the problems of compatibility and replacement efficiency between crucible and smelting equipment by preparing a layer outside the crucible body to adapt to the heating coil; existing technology two reduces nozzle clogging by setting heating elements on the crucible body and nozzle respectively.

[0006] However, these existing technologies do not pay enough attention to the heating uniformity of the lining plates inside the sinking cavity. They generally suffer from problems such as unreasonable heating source layout, low heat reflection and utilization rate, and difficulty in dynamically adjusting the heat distribution according to temperature changes during the heating process. This results in uneven heating in different areas of the lining plates, affecting the material processing effect or reaction consistency, and failing to meet the stringent requirements of high-precision heating processing for uniform heating of the lining plates.

[0007] Therefore, we propose a submerged cavity annular heating system to achieve uniform heating of the liner, in order to solve the problems mentioned above. Summary of the Invention

[0008] The purpose of this invention is to provide a recessed cavity annular heating system that enables uniform heating of the liner, thereby solving the problems mentioned in the background art, such as unreasonable heating source layout, low heat reflection and utilization rate, and difficulty in dynamically adjusting heat distribution according to temperature changes during the heating process.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a recessed cavity annular heating system for uniformly heating a liner plate, comprising a recessed cavity body, a cavity door body disposed on the side of the recessed cavity body, a liner plate disposed inside the recessed cavity body, a heating mechanism disposed inside the recessed cavity body, the heating mechanism heating the interior of the recessed cavity body by the heat generated by the heating of the heating wire contained therein, and a reflection mechanism disposed inside the recessed cavity body, the reflection mechanism reflecting the generated heat through the cooperation of the reflection plate and the deformation auxiliary plate contained therein, thereby improving the heat utilization efficiency.

[0010] Preferably, a telescopic cylinder is fixedly connected to the bottom of the sinking cavity body, and the output end of the telescopic cylinder is hinged to the lower side of the cavity door body. By changing the state of the telescopic cylinder, the cavity door body is moved synchronously, thereby driving the opening and closing of the cavity door body.

[0011] Preferably, a first support assembly is hinged to the side of the sinking cavity body, and the middle part of the first support assembly is hollow. A second support assembly is hinged to the side of the cavity door body, and a support groove is formed through the second support assembly. The outer end of the first support assembly is slidably connected to the inside of the support groove. When the cavity door body moves, it drives the second support assembly to slide along the inside of the first support assembly.

[0012] Preferably, the heating mechanism includes a mounting plate, which is fixedly connected to the inside of the sinking cavity body, and a reflector is fixedly connected to the outside of the mounting plate. The reflector is fixedly connected to the heating wire, and the heating wire is arranged in a ring structure. The ring-shaped arrangement of the heating wire ensures that the liner is heated in a ring, thereby achieving the heating and drying treatment of the water vapor attached to the liner.

[0013] Preferably, a thermocouple is fixedly connected to the lower side of the sinking cavity body, and the thermocouple is electrically connected to the heating wire, so as to achieve precise control of the heating temperature of the heating wire through the thermocouple.

[0014] Preferably, the reflector is arranged in an arc shape, which can reflect the heat generated by the heating wire, so that the heat is evenly conducted to the liner.

[0015] Preferably, the reflection mechanism further includes a receiving groove, which is formed on the reflector plate. The reflector plate is also provided with a limiting groove, and two sets of limiting grooves are symmetrically distributed about the center point of the receiving groove. The limiting grooves are interconnected with each other.

[0016] Preferably, the limiting groove has a limiting block slidably connected inside, and a deformation auxiliary plate is fixedly connected between the two sets of limiting blocks. A connecting spring is fixedly connected between the deformation auxiliary plate and the reflector plate.

[0017] Preferably, the connecting spring is made of shape memory alloy, and the upper and lower sides of the deformation auxiliary plate are arranged in an inclined structure. After the connecting spring is heated and deformed, it abuts against the non-inclined part of the deformation auxiliary plate, so that the two inclined sides of the deformation auxiliary plate move closer to each other.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] (1) A telescopic cylinder is provided. By activating the telescopic cylinder, its output end is extended or shortened, thereby driving the cavity door body to rotate around the hinge point between it and the sinking cavity body. The cavity door body can be opened and closed without manual operation. During the movement of the cavity door body, the second bracket assembly hinged on its side will move with the movement of the cavity door body. Since the outer end of the first bracket assembly is slidably connected to the bracket groove of the second bracket assembly, and the middle part of the first bracket assembly is hollow, the second bracket assembly can slide along the inside of the first bracket assembly. This setting provides stable support and guidance for the movement of the cavity door body, ensuring that the cavity door body runs smoothly during opening and closing, avoiding shaking or jamming, ensuring the sealing of the sinking cavity body, and preventing heat loss.

[0020] (2) A heating wire is provided, which is arranged in a ring structure on the reflector plate. The ring layout can heat the liner plate evenly from the circumference. When the heating wire is working, the heat will converge from all directions to the center of the liner plate, avoiding the problem of local heat concentration or uneven distribution in traditional heating methods. This ensures that each area of ​​the liner plate can obtain relatively uniform heat, realize the comprehensive and uniform drying treatment of water vapor attached to the liner plate, effectively improve the drying efficiency and effect, and prevent the liner plate from being damaged due to local overheating or the water vapor remaining due to insufficient heating, which will affect subsequent use.

[0021] (3) A thermocouple is provided. The thermocouple is fixedly connected to the lower side of the sinking cavity body and an electrical connection is established between it and the heating wire. It can monitor the temperature change inside the sinking cavity body in real time and perform real-time closed-loop feedback adjustment. The thermocouple realizes precise control of the heating temperature of the heating wire, ensuring that the temperature inside the sinking cavity body can be stabilized within the preset process parameter range. It provides a reliable temperature guarantee for the uniform heating and drying quality of the liner, and avoids adverse effects on the liner treatment effect due to excessive temperature fluctuation.

[0022] (4) A reflector is provided. The reflector is fixedly connected to the outside of the mounting plate in an arc shape. Its arc design can effectively reflect the heat generated by the heating wire, change the direction of heat propagation, and concentrate more of the heat that might otherwise spread to the surrounding area to the area where the liner is located. When the heating wire releases heat, most of the heat will be directly radiated to the liner, while some of the heat that spreads to the outside will be reflected back by the arc reflector and act on the liner again. This not only improves the utilization rate of heat and reduces heat loss, but also further enhances the uniformity of heat distribution on the surface of the liner and avoids local temperature differences caused by heat scattering.

[0023] (5) When the heating temperature rises to a certain level, the shape memory alloy connecting spring deforms and elongates under heat. The elongated connecting spring will abut against the non-inclined part of the deformation auxiliary plate. Since the upper and lower sides of the deformation auxiliary plate are inclined, under the pushing force of the connecting spring, the two sides of the inclined edge of the deformation auxiliary plate will move closer to each other, causing the deformation auxiliary plate to slide out of the storage groove and unfold. The unfolded deformation auxiliary plate and the reflector together form a more perfect reflective surface, which can reflect heat from different angles, further optimizing the heat reflection path and coverage. When the temperature changes during the heating process, the deformation auxiliary plate is dynamically adjusted to ensure that heat can be reflected efficiently and evenly at different temperature stages, thereby better ensuring that the liner is heated evenly. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 2This is a three-dimensional structural diagram of the telescopic cylinder of the present invention;

[0026] Figure 3 This is a schematic diagram of the three-dimensional structure of the sinking cavity body of the present invention;

[0027] Figure 4 This is a three-dimensional cross-sectional view of the sunken cavity body of the present invention;

[0028] Figure 5 This is a three-dimensional structural diagram of the mounting plate of the present invention;

[0029] Figure 6 For the present invention Figure 5 Enlarged structural diagram at point A in the middle;

[0030] Figure 7 This is a schematic diagram of the three-dimensional structure of the reflector of the present invention;

[0031] Figure 8 This is a schematic diagram of the three-dimensional structure of the deformation auxiliary plate of the present invention;

[0032] Figure 9 This is a schematic diagram of the three-dimensional structure of the limiting block of the present invention.

[0033] In the diagram: 1. Lower cavity body; 2. Telescopic cylinder; 3. Cavity door body; 4. First support assembly; 5. Thermocouple; 6. Heating wire; 7. Mounting plate; 8. Reflector; 9. Storage slot; 10. Deformation auxiliary plate; 11. Connecting spring; 12. Limiting block; 13. Limiting slide; 14. Second support assembly; 15. Support slide. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Example 1: As Figure 1 and Figure 2The present invention provides the following technical solution: a ring heating system for a sunken cavity to achieve uniform heating of the liner plate. The system discloses a cavity door body 3 disposed on the side of the sunken cavity body 1, and a liner plate disposed inside the sunken cavity body 1. A telescopic cylinder 2 is fixedly connected to the bottom of the sunken cavity body 1, and the output end of the telescopic cylinder 2 is hinged to the lower side of the cavity door body 3. By changing the state of the telescopic cylinder 2, the cavity door body 3 is moved synchronously, driving the opening and closing of the cavity door body 3. A first support assembly 4 is hinged to the side of the sunken cavity body 1, and the middle part of the first support assembly 4 is hollow. A second support assembly 14 is hinged to the side of the cavity door body 3, and a support groove 15 is provided through the second support assembly 14. The outer end of the first support assembly 4 is slidably connected to the inside of the support groove 15. When the cavity door body 3 moves, it drives the second support assembly 14 to slide along the inside of the first support assembly 4.

[0036] In actual operation, when the cavity body 3 needs to be opened, the telescopic cylinder 2 is activated to extend its output end. At this time, the cavity body 3 moves laterally under the pull of the telescopic cylinder 2. Simultaneously, the second support assembly 14 hinged to the side of the cavity body 3 moves accordingly. The outer end of the first support assembly 4 slides in the support groove 15 of the second support assembly 14, and the second support assembly 14 extends outward along the hollow interior of the first support assembly 4, providing stable support for the rotation of the cavity body 3 until the cavity body 3 is fully opened. When the cavity body 3 needs to be closed, the output end of the telescopic cylinder 2 is shortened, pulling the cavity body 3 to move in the opposite direction. The second support assembly 14 slides inward along the interior of the first support assembly 4, and the outer end of the first support assembly 4 slides in the opposite direction in the support groove 15, ultimately making the cavity body 3 tightly fit the sinking cavity body 1, achieving a seal. The opening and closing of the cavity body 3 can be achieved without manual operation, saving time and effort.

[0037] Example 2: Figures 3-5 and Figure 7 The present invention provides the following technical solution: a ring-shaped heating system for a recessed cavity to achieve uniform heating of the lining plate. The recessed cavity body 1 is equipped with a heating mechanism. The heating mechanism heats the interior of the recessed cavity body 1 by generating heat through heating wires 6. The heating mechanism includes a mounting plate 7, which is fixedly connected to the interior of the recessed cavity body 1. A reflector plate 8 is fixedly connected to the outer side of the mounting plate 7, and the reflector plate 8 is fixedly connected to the heating wires 6. The heating wires 6 are arranged in a ring structure. The ring-shaped arrangement of the heating wires 6 ensures ring heating of the lining plate, achieving heating and drying of the water vapor adhering to the lining plate. A thermocouple 5 is fixedly connected to the lower side of the recessed cavity body 1, and the thermocouple 5 is electrically connected to the heating wires 6. The thermocouple 5 enables precise control of the heating temperature of the heating wires 6.

[0038] In practical applications, after placing the liner in the designated position inside the recessed cavity body 1, the cavity door body 3 is closed, and the heating system is started. The heating wire 6 begins to work and generate heat. Since the heating wire 6 is distributed in a ring structure on the reflector plate 8, heat can be transferred from the periphery of the liner to the center simultaneously, forming a ring heating area. This ring layout allows the edge and center areas of the liner to receive heat synchronously, avoiding the problem of excessively high or low local temperatures of the liner caused by uneven heat source distribution in traditional heating methods. Thermocouple 5 monitors the temperature inside the recessed cavity body 1 in real time and converts the temperature signal into an electrical signal to feed back to the control system. When the temperature is lower than the preset value, the control system controls the heating wire 6 to increase the power and raise the heating temperature; when the temperature is higher than the preset value, the power of the heating wire 6 is reduced, realizing dynamic temperature adjustment. This provides a precise and stable temperature environment for drying the liner, ensuring that water vapor can evaporate evenly and improving the drying quality.

[0039] Example 3: Figure 5 , Figure 6 , Figure 8 and Figure 9 The present invention provides the following technical solution: a recessed cavity annular heating system for achieving uniform heating of the liner plate. The recessed cavity body 1 is internally equipped with a reflective mechanism. This mechanism, through the cooperation of its included reflective plate 8 and deformation auxiliary plate 10, reflects the generated heat, improving heat utilization efficiency. The reflective plate 8 has an arc-shaped structure, reflecting the heat generated by the heating wire 6, thus ensuring uniform heat conduction to the liner plate. The reflective mechanism also includes a receiving groove 9, which is formed on the reflective plate 8. Furthermore, the reflective plate 8 is provided with a limiting groove 13. Furthermore, two sets of limiting slides 13 are symmetrically distributed about the center point of the storage slot 9. The limiting slides 13 are connected to each other. The limiting slides 13 are slidably connected to the inside of the limiting slides 13. A deformation auxiliary plate 10 is fixedly connected between the two sets of limiting blocks 12. A connecting spring 11 is fixedly connected between the deformation auxiliary plate 10 and the reflector plate 8. The connecting spring 11 is made of shape memory alloy. The upper and lower sides of the deformation auxiliary plate 10 are inclined. After the connecting spring 11 is heated and deformed, it abuts against the non-inclined part of the deformation auxiliary plate 10, so that the two inclined sides of the deformation auxiliary plate 10 move closer to each other.

[0040] During the actual heating process, the arc-shaped structure of the reflector plate 8 first reflects the heat generated by the heating wire 6, directing most of the heat to the liner. When the heating system starts up, the temperature gradually rises. At this time, the shape memory alloy connecting spring 11 has not yet undergone significant deformation. The deformation auxiliary plate 10 is stored in the storage groove 9, reducing interference with the initial heat distribution. As the heating time increases, when the internal temperature of the recessed cavity body 1 reaches the phase change temperature of the connecting spring 11, the connecting spring 11 begins to elongate due to the heat. The elongated connecting spring 11 generates a thrust on the non-inclined part of the deformation auxiliary plate 10. Since the upper and lower sides of the deformation auxiliary plate 10 are inclined, under the action of the thrust, the limiting blocks 12 on both sides of the deformation auxiliary plate 10 will slide along the limiting slide groove 13 toward the center of the storage groove 9, so that the two sides of the inclined edge of the deformation auxiliary plate 10 move closer to each other, thereby causing the deformation auxiliary plate 10 to gradually slide out of the storage groove 9 and unfold. The unfolded deformation auxiliary plate 10 and the reflector plate 8 together form a more complete and wider-coverage reflective surface, which can reflect and guide heat radiated from different angles, effectively recover and redirect heat, and further ensure that heat can be evenly applied to all parts of the liner. When the heating process is nearing its end or the temperature drops, the connecting spring 11 returns to its original state, pulling the deformation auxiliary plate 10 back into the storage slot 9, preventing it from occupying space or affecting the operation of other components when not in operation. Through the dynamic cooperation between the reflector plate 8 and the deformation auxiliary plate 10, intelligent adjustment of the heat reflection effect is achieved at different heating stages, which greatly improves the heat utilization efficiency and the uniformity of heating of the liner.

[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A recessed cavity annular heating system for achieving uniform heating of the liner plate, comprising a recessed cavity body (1), wherein a cavity door body (3) is provided on the side of the recessed cavity body (1), and a liner plate is provided inside the recessed cavity body (1), characterized in that: The interior of the sinking cavity body (1) is provided with a heating mechanism. The heating mechanism heats the interior of the sinking cavity body (1) by heating the heating wire (6) contained therein. The interior of the sinking cavity body (1) is provided with a reflection mechanism. The reflection mechanism reflects the generated heat by the cooperation of the reflection plate (8) and the deformation auxiliary plate (10) contained therein, thereby improving the heat utilization efficiency. The reflective mechanism also includes a storage groove (9), which is opened on the reflective plate (8). The reflective plate (8) is also opened with a limiting groove (13). The limiting groove (13) is slidably connected to a limiting block (12). A deformation auxiliary plate (10) is fixedly connected between the two sets of limiting blocks (12). A connecting spring (11) is fixedly connected between the deformation auxiliary plate (10) and the reflective plate (8). The connecting spring (11) is made of shape memory alloy. The upper and lower sides of the deformation auxiliary plate (10) are set in an inclined structure. After the connecting spring (11) is heated and deformed, it abuts against the non-inclined part of the deformation auxiliary plate (10), so that the two sides of the inclined edge of the deformation auxiliary plate (10) are close to each other.

2. The annular heating system for a recessed cavity to achieve uniform heating of the liner plate according to claim 1, characterized in that: The bottom of the sinking cavity body (1) is fixedly connected to a telescopic cylinder (2), and the output end of the telescopic cylinder (2) is hinged to the lower side of the cavity door body (3). By changing the state of the telescopic cylinder (2), the cavity door body (3) is moved synchronously, driving the cavity door body (3) to open and close.

3. The annular heating system for a recessed cavity to achieve uniform heating of the liner plate according to claim 2, characterized in that: The side of the sinking cavity body (1) is hinged with a first support assembly (4), and the middle part of the first support assembly (4) is hollow. The side of the cavity body (3) is hinged with a second support assembly (14), and a support groove (15) is opened through the second support assembly (14). The outer end of the first support assembly (4) is slidably connected to the inside of the support groove (15). When the cavity body (3) moves, it drives the second support assembly (14) to slide along the inside of the first support assembly (4).

4. The annular heating system for a recessed cavity to achieve uniform heating of the liner plate according to claim 1, characterized in that: The heating mechanism includes a mounting plate (7), which is fixedly connected to the inside of the sinking cavity body (1). A reflector plate (8) is fixedly connected to the outside of the mounting plate (7), and the reflector plate (8) is fixedly connected to the heating wire (6). The heating wire (6) is arranged in a ring structure. The ring-shaped heating wire (6) ensures that the liner is heated in a ring, thereby achieving the heating and drying treatment of the water vapor attached to the liner.

5. The annular heating system for a recessed cavity to achieve uniform heating of the liner plate according to claim 4, characterized in that: A thermocouple (5) is fixedly connected to the lower side of the sink cavity body (1), and the thermocouple (5) is electrically connected to the heating wire (6). The heating temperature of the heating wire (6) can be precisely controlled through the thermocouple (5).

6. The annular heating system for a recessed cavity to achieve uniform heating of the liner plate according to claim 4, characterized in that: The reflector (8) is arranged in an arc shape. The heat generated by the heating wire (6) can be reflected by the reflector (8), so that the heat can be evenly conducted to the liner.

7. The annular heating system for a recessed cavity to achieve uniform heating of the liner plate according to claim 6, characterized in that: The limiting slide (13) is symmetrically distributed in two sets about the center point of the receiving groove (9), and the limiting slide (13) is connected to the limiting slide (13).

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