Hearth of flat three-side heating box-type furnace

Abstract

The utility model discloses a flat type three-face heating box-type furnace hearth, and relates to the technical field of box-type furnace hearths. The utility model comprises an outer layer, the inner wall of the outer layer is provided with a middle layer, and the inner wall of the middle layer is provided with an inner layer. According to the utility model, the bearing mechanism is inserted into the two placing mechanisms which are highly symmetrical by hands and slides to a deeper position of the inner layer along the two placing mechanisms, and the bearing mechanism falls into the placing mechanisms due to gravity along with the sliding of the bearing mechanism; at the moment, the two containing mechanisms with the same height support and limit the bearing mechanism, then a crucible containing powder, liquid and other materials is placed on the containing mechanisms, solid materials can also be placed on the containing mechanisms, and then the adaptability of different heating requirements is greatly improved by adjusting the height of the heated materials. And therefore, the heating effect and the product quality are obviously improved.

Description

Technical Field

[0001] This utility model belongs to the field of box furnace technology, and specifically relates to a flat three-sided heating box furnace. Background Technology

[0002] Box furnaces play an important role as commonly used heating equipment in many industrial fields such as material processing and heat treatment, especially flat three-sided heating box furnaces, which have certain advantages in terms of improving space ratio and optimizing temperature field uniformity due to their unique structural design.

[0003] Because the temperature field distribution in a flat furnace is not completely uniform at different heights, and the size of the materials being heated also varies, placing the material too low may prevent it from fully absorbing the heat from the three heating elements, resulting in uneven heating. This affects the material processing effect and fails to meet the expected process requirements. Furthermore, if the furnace opening is not sealed tightly, the heat dissipation of the box furnace is large, causing the temperature at the furnace opening to be significantly lower than the temperature at the center of the furnace, which greatly limits the heating effect of the box furnace.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a flat three-sided heating box furnace chamber to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a flat, three-sided heating box furnace chamber, comprising an outer layer, a middle layer installed on the inner wall of the outer layer, and an inner layer installed on the inner wall of the middle layer. Multiple placement slots are provided at the upper end and both sides of the inner layer, and resistance wires are installed in each of the multiple placement slots. Placement mechanisms are symmetrically arranged at different heights at both ends of the inner wall of the inner layer, with each placement mechanism located between two adjacent placement slots. A bearing mechanism is installed between the symmetrical placement mechanisms at the same height. A sealing mechanism is installed on one side of the middle layer, and a sealing ring is installed inside the middle layer and on one side of the sealing mechanism. Nuts are embedded at the four corners of the middle layer, and the sealing mechanism is fixed to the nuts by bolts.

[0008] Furthermore, the placement mechanism includes a connecting plate and a top plate, the connecting plate being located below the top plate, and both the connecting plate and the top plate being mounted on the inner wall of the inner layer.

[0009] Furthermore, a limiting plate is installed at one end of the connecting plate, and an arc groove is formed on the connecting plate, the arc groove being arc-shaped.

[0010] Furthermore, the supporting mechanism includes a supporting net, with supports symmetrically installed at both ends of the supporting net and frames symmetrically installed at the other two ends of the supporting net. Two supports are fixedly installed with two frames, and arc blocks are installed on both supports, with the arc blocks located in the arc groove.

[0011] Furthermore, the two brackets are located on the two connecting plates and on one side of the two limiting plates, and the two brackets are located below the two top plates, with a frustum-shaped placement net installed in the middle of the supporting net.

[0012] Furthermore, the sealing mechanism includes an inner cavity sealing plate, which is located within the inner cavity of the inner layer.

[0013] Furthermore, a fixing plate is fixedly installed at one end of the inner cavity sealing plate, and the fixing plate has round holes at all four corners, with the bolt located inside the round holes.

[0014] Furthermore, an inlay groove is provided on the middle layer, the sealing ring is located in the inlay groove, and the fixing plate is located on one side of the sealing ring.

[0015] This utility model has the following beneficial effects:

[0016] When the height of the heated material needs to be adjusted, the height of the supporting mechanism is adjusted according to the requirements. Then, the supporting mechanism is inserted by hand into the two symmetrical placement mechanisms at this height and slid deeper into the inner layer along the two placement mechanisms. As the supporting mechanism slides, it falls into the placement mechanism due to gravity. At this time, the two placement mechanisms of the same height support and limit the supporting mechanism. Then, the crucible containing powder, liquid, or other materials is placed on the placement mechanism. Solid materials can also be placed on the placement mechanism. By adjusting the height of the heated material, the adaptability to different heating requirements is greatly improved, and the material is placed in the optimal heating position, thereby significantly improving the heating effect and product quality.

[0017] After adjusting the heating height of the material, the sealing mechanism is then lifted and aligned with the inner furnace opening, allowing part of the sealing mechanism to enter and seal the opening. It is important to note that the part of the sealing mechanism entering the inner furnace opening is made of high-temperature resistant silicon carbide. Multiple bolts are then passed through the sealing mechanism and tightened onto multiple nuts. During this fixing process, because a sealing ring is installed at one end of the middle layer, the sealing mechanism continuously compresses the sealing ring, causing it to deform and increasing the seal between the sealing mechanism and the middle layer. The deformation of the sealing ring effectively fills any gaps between the sealing mechanism and the middle layer, greatly enhancing the seal and making it difficult for heat to escape from the furnace opening, thus reducing heat loss. Then, the resistance wire is energized to heat the material, specifically the material within the inner cavity.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the utility model embodiments, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the middle layer of this utility model;

[0022] Figure 3 This is an exploded view of the sealing mechanism and an internal view of the inner layer of this utility model;

[0023] Figure 4 This is a schematic diagram of the placement groove and the resistance wire of this utility model;

[0024] Figure 5 For the present utility model Figure 3 Enlarged view of point A in the middle;

[0025] Figure 6 This is a schematic diagram of the overall support mechanism of this utility model;

[0026] Figure 7 This is a schematic diagram of the overall sealing mechanism of this utility model;

[0027] Figure 8 This is a schematic diagram of the arc groove of this utility model.

[0028] The attached diagram lists the components represented by each number as follows:

[0029] 1. Outer layer; 2. Middle layer; 3. Inner layer; 4. Placement groove; 5. Resistance wire; 6. Placement mechanism; 601. Connecting plate; 602. Top plate; 603. Limiting plate; 604. Arc groove; 7. Bearing mechanism; 701. Bearing net; 702. Bracket; 703. Frame; 704. Frustum-shaped placement net; 705. Arc block; 8. Sealing mechanism; 801. Inner layer cavity sealing plate; 802. Fixing plate; 803. Round hole; 9. Sealing ring; 10. Nut; 11. Bolt. Detailed Implementation

[0030] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.

[0031] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0032] Please see Figures 1-8 As shown, this utility model is a flat three-sided heating box furnace chamber, including an outer layer 1, a middle layer 2 installed on the inner wall of the outer layer 1, an inner layer 3 installed on the inner wall of the middle layer 2, multiple placement slots 4 are installed at the upper end and both sides of the inner layer 3, and resistance wires 5 are installed in each of the multiple placement slots 4. Placement mechanisms 6 are symmetrically arranged at different heights at both ends of the inner wall of the inner layer 3. The placement mechanisms 6 are located between two adjacent placement slots 4. A bearing mechanism 7 is installed between the placement mechanisms 6 at the same height. A sealing mechanism 8 is installed on one side of the middle layer 2. A sealing ring 9 is installed in the middle layer 2 and on one side of the sealing mechanism 8. Nuts 10 are embedded at the four corners of the middle layer 2. The sealing mechanism 8 is fixed to the nuts 10 by bolts 11.

[0033] It is important to note that: the inner layer is made of silicon carbide material, which has high fire resistance, can withstand high temperatures and is not easily corroded; the middle layer is made of ceramic fiber lightweight insulation material, which mainly serves to insulate and reduce heat loss; and the outer layer is made of steel plate, which mainly has a certain strength and wear resistance to protect the internal structure.

[0034] When the height of the heated material needs to be adjusted, the height of the supporting mechanism 7 is adjusted according to the requirements. Then, the supporting mechanism 7 is manually inserted into the two symmetrical placement mechanisms 6 at this height, and slid deeper into the inner layer 3 along the two placement mechanisms 6. As the supporting mechanism 7 slides, it falls into the placement mechanism 6 due to gravity. At this point, the two placement mechanisms 6 at the same height support and limit the supporting mechanism 7. Next, a crucible containing powder, liquid, or other materials is placed on the placement mechanism 6. Solid materials can also be placed on the placement mechanism 6. By adjusting the height of the heated material, the adaptability to different heating requirements is greatly improved, placing the material in the optimal heating position, thereby significantly improving the heating effect and product quality. After adjusting the heating height of the material, then... The sealing mechanism 8 is aligned with the furnace opening of the inner layer 3, allowing part of the sealing mechanism 8 to enter the furnace opening and seal it. It is important to note that the part of the sealing mechanism 8 entering the furnace opening of the inner layer 3 is made of silicon carbide high-temperature resistant material. Multiple bolts 11 are then passed through the sealing mechanism 8 and tightened onto multiple nuts 10. During the fixing process, since a sealing ring 9 is installed at one end of the middle layer 2, the sealing mechanism 8 will continuously compress the sealing ring 9, causing it to deform and increasing the sealing between the sealing mechanism 8 and the middle layer 2. The deformation of the sealing ring 9 can effectively fill any gaps between the sealing mechanism 8 and the middle layer 2, greatly enhancing the sealing between the two, making it difficult for heat to escape from the furnace opening and reducing heat loss. Then, the resistance wire 5 is energized to heat the material, heating the material inside the inner cavity of the inner layer 3.

[0035] In addition, in specific applications, both the placement mechanism 6 and the bearing mechanism 7 are made of heat-resistant cast iron, which has the characteristic of high temperature resistance.

[0036] In one embodiment, the placement mechanism 6 includes a connecting plate 601 and a top plate 602. The connecting plate 601 is located below the top plate 602, and both the connecting plate 601 and the top plate 602 are installed on the inner wall of the inner layer 3.

[0037] A limiting plate 603 is installed at one end of the connecting plate 601, and an arc groove 604 is provided on the connecting plate 601, which is arc-shaped.

[0038] The supporting mechanism 7 includes a supporting net 701, with supports 702 symmetrically installed at both ends of the supporting net 701 and frames 703 symmetrically installed at the other two ends of the supporting net 701. The two supports 702 are fixedly installed with the two frames 703. An arc block 705 is installed on each of the two supports 702, and the arc block 705 is located in the arc groove 604.

[0039] The two brackets 702 are located on the two connecting plates 601 and on one side of the two limiting plates 603, and the two brackets 702 are located below the two top plates 602. A frustum-shaped placement net 704 is installed in the middle of the supporting net 701.

[0040] When adjusting the height of the heated material, lift the entire support mechanism 7 by hand, placing the two supports 702 on the two connecting plates 601 respectively, and on one side of the limiting plate 603. At the same time, ensure that the supports 702 are below the top plate 602. The supports 702 can be pushed to slide slowly deeper into the inner layer 3. During the sliding process, the arc blocks 705 slide along the trajectory of the connecting plates 601. When the two arc blocks 705 slide to the arc grooves 604 on the two connecting plates 601, the entire support mechanism 7 will fall naturally due to its own weight. At this time, the arc blocks 705 enter the arc grooves 604. The two arc grooves 604 of the same height limit the arc blocks 705, and thus the support mechanism 7 will also be limited. At this time, the two connecting plates 601 of the same height support the two supports 702, thereby completing the overall height adjustment of the support mechanism 7. This greatly improves the adaptability to different heating requirements, puts the material in the optimal heating position, and thus significantly improves the heating effect and product quality.

[0041] Once the heating height of the material is adjusted, the material to be heated can be placed. A frustum-shaped placement net 704 is installed in the middle of the support net 701 for placing crucibles containing powders, liquids, and other materials. Its frustum shape helps to prevent materials from spilling. Similarly, solid materials can also be placed on the support net 701 and the frustum-shaped placement net 704.

[0042] In addition, in specific applications, the connecting plate 601, top plate 602, limiting plate 603, bearing net 701, bracket 702, frame 703, frustum-shaped placement net 704, and arc block 705 are all made of heat-resistant cast iron.

[0043] In one embodiment, the sealing mechanism 8 includes an inner cavity sealing plate 801 located in the inner cavity of the inner layer 3.

[0044] A fixing plate 802 is fixedly installed at one end of the inner cavity sealing plate 801. The fixing plate 802 has round holes 803 at each of its four corners, and the bolt 11 is located in the round holes 803.

[0045] The middle layer 2 has an inlay groove, the sealing ring 9 is located in the inlay groove, and the fixing plate 802 is located on one side of the sealing ring 9.

[0046] After the material height adjustment and placement are completed in the box furnace, the sealing mechanism 8 is lifted as a whole, allowing the inner cavity sealing plate 801 to slowly approach the furnace opening of the inner layer 3. A fixing plate 802 is fixedly installed at one end of the inner cavity sealing plate 801. Then, bolts 11 pass through the round hole 803 and connect with the nuts 10 embedded at the four corners of the middle layer 2. Simultaneously, the sealing ring 9 is installed in the inlay groove on the middle layer 2. As the inner cavity sealing plate 801 gradually enters the furnace opening of the inner layer 3, the fixing plate 802 is positioned precisely on one side of the sealing ring 9. Then, the bolts 11 are tightened. As the fixing plate 802 is continuously tightened, it is subjected to pressure towards the middle layer 2 and gradually approaches the middle layer 2. During this process, the fixing plate 802 continuously compresses the sealing ring 9. Due to the good elasticity of the sealing ring 9, it will deform after being compressed, thus tightly fitting between the fixing plate 802 and the middle layer 2, effectively filling the gap between them. The inner cavity sealing plate 801 is made of silicon carbide high temperature resistant material. This material has excellent stability and durability in high temperature environment, making it difficult for heat to escape from the furnace opening, significantly reducing heat loss, improving energy utilization, and reducing energy consumption costs.

[0047] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0048] The preferred embodiments of the utility model disclosed above are merely illustrative of the utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the utility model, thereby enabling those skilled in the art to better understand and utilize it. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A flat three-side heating box furnace hearth, comprising an outer layer (1), an inner wall of the outer layer (1) is provided with a middle layer (2), an inner wall of the middle layer (2) is provided with an inner layer (3), upper ends and left and right ends of the inner layer (3) are provided with a plurality of placing grooves (4), and a plurality of electric resistance wires (5) are arranged in the placing grooves (4). The inner layer (3) is provided with placing mechanisms (6) of different heights at both ends of the inner wall, the placing mechanisms (6) are located between two adjacent placing grooves (4), the bearing mechanisms (7) are installed between the placing mechanisms (6) of the same height, the sealing mechanism (8) is installed on one side of the middle layer (2), the sealing ring (9) is installed in the middle layer (2) and located on one side of the sealing mechanism (8), the nuts (10) are inlaid in the four corners of the middle layer (2), and the sealing mechanism (8) is fixed to the nuts (10) through the bolts (11).

2. A hearth for a flat three-sided heated box furnace according to claim 1, characterized in that The placing mechanism (6) comprises a connecting plate (601) and a top plate (602), the connecting plate (601) is located below the top plate (602), and the connecting plate (601) and the top plate (602) are both installed on the inner wall of the inner layer (3).

3. A hearth for a flat three-sided heated box furnace according to claim 2, wherein One end of the connecting plate (601) is provided with a limiting plate (603), and an arc groove (604) is formed in the connecting plate (601) and is arranged in an arc shape.

4. A hearth for a flat three-sided heated box furnace according to claim 3, wherein The bearing mechanism (7) comprises a bearing net (701), supports (702) are symmetrically installed at both ends of the bearing net (701), frames (703) are symmetrically installed at the other two ends of the bearing net (701), the two supports (702) and the two frames (703) are fixedly installed, arc blocks (705) are installed on the two supports (702), and the arc blocks (705) are located in the arc grooves (604).

5. A hearth for a flat three-sided heated box furnace according to claim 4, wherein The two supports (702) are located on the two connecting plates (601) and on one side of the two limiting plates (603), and the two supports (702) are located below the two top plates (602), and a circular truncated cone placing net (704) is installed in the middle of the bearing net (701).

6. A hearth for a flat three-sided heated box furnace according to claim 1, wherein The sealing mechanism (8) comprises an inner cavity sealing plate (801) in the inner layer, and the inner cavity sealing plate (801) is located in the inner cavity of the inner layer (3).

7. A hearth for a flat three-sided heated box furnace according to claim 6, wherein One end of the inner cavity sealing plate (801) is fixedly provided with a fixed plate (802), circular holes (803) are formed in the four corners of the fixed plate (802), and the bolts (11) are located in the circular holes (803).

8. A hearth for a flat three-sided heated box furnace according to claim 7, wherein The middle layer (2) is provided with an inlaying groove, the sealing ring (9) is located in the inlaying groove, and the fixed plate (802) is located on one side of the sealing ring (9).

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