Box-type heating furnace with heating elements mounted at furnace door

Abstract

The utility model discloses a box-type heating furnace with a heating element arranged at a furnace door, which comprises the furnace door, more than one group of heating components are arranged on the inner side surface of the furnace door, the heating components are arranged on the furnace door in a suspension mode, and a wire outlet hole is reserved on the furnace door. A power supply wiring terminal of the heating assembly penetrates through the wire outlet hole and extends out of the furnace door; more than one group of heating components are divided into a plurality of heating areas and are arranged on the inner side surface of the furnace door; and each group of heating components is formed by connecting a plurality of heating wires in series. According to the utility model, the heating element is arranged at the furnace door of the box-type heating furnace, so that the temperature uniformity in the hearth is obviously improved, the problem of low temperature at the furnace door in the traditional heating mode is particularly solved, and the temperature distribution of each area in the hearth is more uniform.

Description

Technical Field

[0001] The utility model relates to a heating furnace, in particular to a box-type heating furnace with a heating element installed at a furnace door. Background Art

[0002] Box-type heating furnaces are important equipment widely used in industrial production, primarily for heating materials such as metals and ceramics. However, existing box-type heating furnaces primarily utilize a two-sided heating method, resulting in uneven temperature distribution within the furnace. This is particularly true at the furnace door. Due to a lack of heating elements, the temperature near the door is often lower than in other areas, affecting the uniformity and quality of the heated product, reducing the yield rate.

[0003] To address this issue, some heating furnaces employ multi-point heating within the furnace chamber. However, there remains no effective solution to the uneven door temperature problem. Structural limitations often prevent the effective installation of heating elements near the door, leading to temperature differences in the product near the door during high-precision heating, impacting overall heating uniformity. Summary of the Invention

[0004] To address these issues, the present invention provides a box-type heating furnace with a heating element installed at the furnace door. Proper installation of heating elements at the furnace door has become a pressing technical challenge in the industry. By adding a heating element to the furnace door, the temperature uniformity within the furnace chamber can be effectively improved, improving the heating effect on the product and increasing the yield rate, thus meeting the high temperature control precision requirements of industrial production.

[0005] The utility model is realized by the following technical solution: a box-type heating furnace with a heating element installed at the furnace door, comprising:

[0006] A furnace door, wherein one or more heating components are installed on the inner side of the furnace door, the heating components are suspended on the furnace door, and a wire outlet hole is reserved on the furnace door, and the power connection terminal of the heating component passes through the wire outlet hole and extends to the outside of the furnace door;

[0007] More than one group of heating components are installed on the inner side of the furnace door in multiple heating areas, and each group of heating components is composed of multiple heating wires connected in series.

[0008] As a preferred technical solution, the heating area is divided into a first heating area and a second heating area. The number of heating components in the first heating area is 30 groups, and each group consists of four heating wires connected in series;

[0009] The number of heating components in the second heating area is 15 groups, and each group is composed of four heating wires connected in series.

[0010] As a preferred technical solution, a ceramic tube is installed inside each group of heating wires.

[0011] As a preferred technical solution, a protective cover is installed at a position corresponding to the wire outlet hole on the outer side of the furnace door, and the power connection terminal is protected by the protective cover.

[0012] As a preferred technical solution, a layer of sealing cotton is provided at the inner end of the furnace door.

[0013] As a preferred technical solution, a refractory brick layer is provided on the sealing cotton, and a mounting cavity is provided in the middle of the refractory brick layer, and one or more heating components are installed in the mounting cavity.

[0014] As a preferred technical solution, a plurality of heating installation slots are provided on the refractory bricks, and the heating components are installed in the heating installation slots.

[0015] As a preferred technical solution, a furnace door handle is also installed on the outer end of the furnace door.

[0016] The beneficial effects of the present invention are as follows: the present invention significantly improves the temperature uniformity in the furnace by installing a heating element at the furnace door of the box-type heating furnace, especially solves the problem of low temperature at the furnace door in the traditional heating method, and ensures that the temperature distribution in each area of ​​the furnace is more uniform;

[0017] By hanging the heating components on the inner side of the furnace door and rationally distributing multiple heating areas, different areas can be independently controlled and heated according to actual needs, achieving higher temperature control accuracy;

[0018] In addition, during the installation process, by reserving wire holes and setting up power terminal protection covers, the safety and stability of the system are guaranteed, while avoiding safety hazards caused by exposed terminal blocks.

[0019] The heating element adopts a design of heating wire wrapped in ceramic tube, which increases the service life and durability of the heating wire and further improves the overall performance of the heating furnace;

[0020] The utility model has a reasonable structural design and is easy to install and maintain, effectively improves the heating uniformity and yield rate of the product, is suitable for various industrial heating scenarios, and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0022] Figure 1 This is a schematic diagram of the external structure of the furnace door of the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of the furnace door of the present invention;

[0024] Figure 3 This is a wiring diagram of the heating component of the utility model Figure 1 ;

[0025] Figure 4 This is a wiring diagram of the heating component of the utility model Figure 2 ;

[0026] Figure 5 This is a schematic diagram of the front internal structure of the furnace door of the present invention;

[0027] Description of reference numerals:

[0028] 1. Furnace door; 7. Heating wire; 3. Wire outlet; 4. Power terminal; 5. Protective cover; 6. Sealing cotton; 8. Refractory brick layer; 2. Furnace door handle. DETAILED DESCRIPTION

[0029] All features disclosed in this specification, or all steps in the disclosed methods or processes, except mutually exclusive features and / or steps, can be combined in any manner.

[0030] Any feature disclosed in this specification (including any appended claims, abstract and drawings) may be replaced by other equivalent or similar features unless otherwise stated. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0031] like Figure 1 、 Figure 2 and Figure 5 As shown, the present invention relates to a box-type heating furnace with heating elements installed in the furnace door. The heating furnace includes a furnace door 1, on the inner side of which are mounted multiple heating components. These components are fixed to the furnace door 1 using a suspended mounting structure. To ensure convenient and reliable wiring of the heating components, the furnace door 1 is provided with multiple outlet holes 3. The power supply terminals 4 of the heating components extend through these outlet holes 3 and extend to the outside of the furnace door 1 for connection.

[0032] Specifically, if Figure 3 and Figure 4 As shown, the heating components are distributed on the inner side of the furnace door 1 to form multiple heating areas. According to the actual heating requirements, these heating areas are divided into a first heating area and a second heating area. The first heating area includes 30 groups of heating components, each group of heating components consists of four heating wires 7 connected in series; the second heating area includes 15 groups of heating components, each group also consists of four heating wires 7 connected in series. Through such area division, independent control and temperature adjustment of different areas can be achieved to meet different heating requirements.

[0033] To increase the lifespan and durability of the heating wires 7, a ceramic tube is installed inside each set of heating wires 7. The ceramic tube provides good insulation and high-temperature resistance, preventing the heating wires 7 from being directly exposed to air under high-temperature conditions, thereby extending the lifespan of the device and ensuring its safety.

[0034] A protective cover 5 is installed outside the furnace door 1 at the position of the wire outlet 3. The function of the protective cover 5 is to effectively protect the power terminal 4, prevent the terminal from being damaged or malfunctioning due to the influence of the external environment, and improve the safety and reliability of the equipment.

[0035] In addition, a layer of sealing cotton 6 is provided on the inner end of the furnace door 1. This sealing cotton 6 primarily serves to enhance the sealing effect of the furnace door 1 and prevent heat loss within the furnace. The surface of the sealing cotton 6 is also covered with a layer of refractory bricks. The central portion of the refractory bricks is provided with an installation cavity, within which the heating component is installed, further enhancing its stability and safety. The refractory bricks are also provided with multiple heating installation slots, into which the heating component can be installed, facilitating installation and maintenance.

[0036] A handle is installed on the outer end of the furnace door 1 to facilitate the operator to open and close the furnace door 1, ensuring the convenience of use of the equipment. The utility model solves the problem of uneven temperature at the furnace door 1 of traditional heating furnaces by rationally designing the installation method, wiring structure and safety protection measures of the heating components, significantly improving the temperature uniformity within the furnace, thereby improving the heating quality of the product.

[0037] The utility model significantly improves the temperature uniformity in the furnace by installing a heating element at the furnace door of the box-type heating furnace, especially solves the problem of low temperature at the furnace door in the traditional heating method, and ensures a more uniform temperature distribution in each area of ​​the furnace;

[0038] By hanging the heating components on the inner side of the furnace door and rationally distributing multiple heating areas, different areas can be independently controlled and heated according to actual needs, achieving higher temperature control accuracy;

[0039] In addition, during the installation process, by reserving wire holes and setting up power terminal protection covers, the safety and stability of the system are guaranteed, while avoiding safety hazards caused by exposed terminal blocks.

[0040] The heating element adopts a design of heating wire wrapped in ceramic tube, which increases the service life and durability of the heating wire and further improves the overall performance of the heating furnace;

[0041] The utility model has a reasonable structural design and is easy to install and maintain, effectively improves the heating uniformity and yield rate of the product, is suitable for various industrial heating scenarios, and has broad application prospects.

[0042] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that do not require creative effort should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection defined in the claims.

Claims

1. A box-type heating furnace with heating elements installed at the furnace door, characterized in that: include: A furnace door (1), wherein one or more heating components are installed on the inner side of the furnace door (1), the heating components are installed on the furnace door (1) in a hanging manner, and a wire outlet hole (3) is reserved on the furnace door (1), and the power connection terminal (4) of the heating component passes through the wire outlet hole (3) and extends to the outside of the furnace door (1); More than one group of heating components are installed on the inner side of the furnace door (1) in multiple heating areas, and each group of heating components is composed of multiple heating wires (7) connected in series.

2. The box-type heating furnace with heating elements installed at the furnace door according to claim 1, characterized in that: The heating area is divided into a first heating area and a second heating area. The number of heating components in the first heating area is 30 groups, and each group is composed of four heating wires (7) connected in series. The number of heating components in the second heating area is 15 groups, and each group is composed of four heating wires (7) connected in series.

3. The box-type heating furnace with heating elements installed at the furnace door according to claim 2, characterized in that: Each group of heating wires (7) is internally sheathed with a ceramic tube.

4. The box-type heating furnace with heating elements installed at the furnace door according to claim 1, characterized in that: A protective cover (5) is installed at a position of the outer section of the furnace door (1) corresponding to the wire outlet hole (3), and the protective cover (5) protects the power connection terminal (4).

5. The box-type heating furnace with heating elements installed at the furnace door according to claim 1, characterized in that: A layer of sealing cotton (6) is provided at the inner end of the furnace door (1).

6. The box-type heating furnace with heating elements installed at the furnace door according to claim 5, characterized in that: A refractory brick layer (8) is provided on the sealing cotton (6), and a mounting cavity is provided in the middle of the refractory brick layer (8), and one or more heating components are mounted in the mounting cavity.

7. The box-type heating furnace with heating elements installed at the furnace door according to claim 6, characterized in that: The refractory bricks are provided with a plurality of heating installation slots, and the heating components are installed in the heating installation slots.

8. The box-type heating furnace with heating elements installed at the furnace door according to claim 1, characterized in that: The outer end of the furnace door (1) is also provided with a furnace door (1) handle.

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