Table type resistance furnace

Abstract

The utility model discloses a table type resistance furnace in the field of industrial electric furnaces and hot working equipment, which comprises a fixed charging platform fixedly mounted on a foundation, a movable furnace body arranged on the periphery of the fixed charging platform, the movable furnace body comprises a furnace shell, a furnace lining fixedly mounted on the inner wall of the furnace shell, and a furnace body heating element fixedly mounted on the inner wall of the furnace lining. The movable furnace body is arranged in the furnace shell, the base is fixedly provided with a track, the track is located under the side wall of the movable furnace body, the lower wall of the furnace shell is fixedly provided with movable wheels, the movable wheels are located on the track, the lower wall of the furnace shell is provided with a driving mechanism, and the driving mechanism is connected with the movable wheels. The charging platform is fixed, and the movable furnace body is composed of the furnace shell, the refractory fiber furnace lining and the heating element, so that the overall weight is light, a driving device is simple, installation and maintenance are convenient, the manufacturing cost is reduced, meanwhile, the stability of the charging platform is enhanced, and the failure rate is reduced.

Description

Technical Field

[0001] This utility model relates to the field of industrial electric furnaces and heat processing equipment, specifically a tabletop resistance furnace. Background Technology

[0002] An electric resistance furnace is an industrial furnace that uses electric current to heat the heating elements or heating medium inside the furnace, thereby heating the workpiece or material. The existing trolley-type electric resistance furnace consists of a furnace body (including furnace shell steel structure, furnace lining refractory fiber, heating device), a charging trolley (track and foundation, drive mechanism and wheel set, load-bearing steel structure frame, refractory material, bottom heating element, furnace bottom plate), a furnace door (furnace door steel structure, furnace lining refractory fiber), a control system, and a foundation (furnace body foundation, track foundation).

[0003] Current technology involves placing the workpiece to be heated on a loading trolley, which is then driven by a motor, reducer, and wheel set into the furnace. After the furnace door is closed, the workpiece is heated or heat-treated. Once heating or heat treatment is complete, the furnace door is opened again, and the loading trolley is driven out of the furnace, completing the process. The loading trolley, especially large ones (over 10 tons), consists of a foundation (the blunt gear drive mechanism requires a large and complex underground foundation), tracks, wheel set, motor and reducer, a load-bearing steel frame, and refractory and insulating bricks. Its manufacturing cost is very high, accounting for more than one-third of the entire electric furnace equipment, and it also has a high failure rate and poor stability.

[0004] Based on this, the present invention designs a tabletop resistance furnace to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a tabletop resistance furnace to solve the problems mentioned in the background art, such as high manufacturing cost, which accounts for more than one-third of the entire electric furnace equipment, and high failure rate.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a tabletop resistance furnace, comprising a movable furnace body and a fixed charging platform, the fixed charging platform being fixedly installed on a foundation, a movable furnace body being arranged around the fixed charging platform, the movable furnace body comprising a furnace shell, a furnace lining being fixedly installed on the inner wall of the furnace shell, a furnace heating element being fixedly installed on the inner wall of the furnace lining, a track being fixedly installed on the foundation, the track being located directly below the side wall of the movable furnace body, a moving wheel being fixedly installed on the lower wall of the furnace shell, the moving wheel being located on the track, a driving mechanism being provided on the lower wall of the furnace shell, the driving mechanism being connected to the moving wheel, and a furnace door being provided on the furnace opening end face of the movable furnace body.

[0007] Preferably, the fixed loading platform includes a platform frame and a support pier. The support pier is fixedly installed on the foundation. The platform frame is fixedly installed on the upper wall of the support pier. Refractory bricks are provided on the platform frame. The refractory bricks cover the entire platform frame. Platform heating elements are fixedly installed between the refractory bricks.

[0008] Preferably, the furnace door is a lift-type furnace door, which includes an electric hoist, pulleys, and the furnace door. The output end of the electric hoist is connected to the furnace door through the pulleys. The lift-type furnace door is raised and lowered by the electric hoist and pulleys. Since the furnace door is opened and closed by moving up and down, it is pressed by gravity and inclined plane (or by spring or cylinder). Therefore, wedge-shaped protrusions cannot be inserted to form a tight seal.

[0009] Preferably, the furnace lining is made of refractory fiber.

[0010] Preferably, the furnace body heating element is provided in multiple ways, and the furnace body heating element is evenly distributed on the inner wall of the furnace lining.

[0011] Preferably, multiple movable wheels are evenly distributed.

[0012] Preferably, the furnace door is an insertable furnace door, which is fixedly installed at the front end of the fixed charging platform. The furnace lining and furnace door portion is provided with a wedge-shaped protrusion. The wedge-shaped protrusion cooperates with the insertable furnace door. When the furnace body moves to the working position, the furnace door and furnace body are closed, and the wedge-shaped protrusion is inserted into the furnace opening of the furnace body to form a tight seal. The sealing performance is better than that of a lifting furnace door, and it is energy-saving.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The movable furnace body of this utility model moves through a drive mechanism and moving wheels, while the charging platform remains stationary. Since the movable furnace body is composed of a furnace shell, refractory fiber lining, and heating elements, it is lightweight, has a simple drive device, is easy to install and maintain, and reduces manufacturing costs. At the same time, it enhances the stability of the charging platform and reduces the failure rate. Compared with traditional electric furnaces, the manufacturing cost of this tabletop resistance furnace is greatly reduced, and the larger the loading capacity of the electric furnace, the greater the reduction in manufacturing cost. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the main view structure of this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 3 This is a side cross-sectional view of the present invention.

[0018] The attached diagram lists the components represented by each number as follows:

[0019] 1-Moving furnace body, 2-Drive mechanism, 3-Railway, 4-Furnace lining, 5-Fixed charging platform, 6-Refractory brick, 7-Platform heating element, 8-Furnace door, 9-Support pier, 10-Furnace body heating element, 11-Furnace shell, 12-Platform frame, 13-Moving wheels, 14-Foundation. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see the appendix Figure 1-3 This utility model provides a technical solution: a tabletop resistance furnace, including a movable furnace body 1 and a fixed loading platform 5, which is fixedly installed on a foundation 14. The movable furnace body 1 is arranged around the fixed loading platform 5. The movable furnace body 1 includes a furnace shell 11, a furnace lining 4 is fixedly installed on the inner wall of the furnace shell 11, and a furnace heating element 10 is fixedly installed on the inner wall of the furnace lining 4. A track 3 is fixedly installed on the foundation 14, and the track 3 is located directly below the side wall of the movable furnace body 1. A moving wheel 13 is fixedly installed on the lower wall of the furnace shell 11 and is located on the track 3. A drive mechanism 2 is provided on the lower wall of the furnace shell 11 and is connected to the moving wheel 13. A furnace door 8 is provided on the furnace opening end face of the movable furnace body 1.

[0022] The fixed loading platform 5 includes a platform frame 12 and a support pier 9. The support pier 9 is fixedly installed on the foundation 14. The platform frame 12 is fixedly installed on the upper wall of the support pier 9. Refractory bricks 6 are provided on the platform frame 12. The refractory bricks 6 cover the platform frame 12. Platform heating elements 7 are fixedly installed between the refractory bricks 6.

[0023] See appendix Figure 1-3The furnace door 8 is a lifting furnace door, which includes an electric hoist, pulleys, and the furnace door itself. The output end of the electric hoist is connected to the furnace door 8 via pulleys. The lifting furnace door is raised and lowered by the electric hoist and pulleys. Since the door opens and closes by moving up and down, it relies on gravity and inclined plane pressure (or spring or cylinder pressure). Therefore, wedge-shaped protrusions cannot be inserted to form a tight seal. The furnace door is an insertion-type furnace door, fixedly installed at the front end of the fixed loading platform 5. The furnace door portion of the furnace lining 4 is provided with wedge-shaped protrusions. When the furnace body moves to the working position, the furnace door closes to the furnace body, and the wedge-shaped protrusions insert into the furnace opening of the furnace body, forming a tight seal. This provides better sealing performance than a lifting furnace door and is energy-saving. The wedge-shaped protrusions and the insertion... The furnace doors are designed to work together, allowing users to choose the option that best suits their needs. Insert-type furnace doors offer advantages in sealing and energy saving. However, if loading is inconvenient from both sides of the platform and can only be done from the front, insert-type sealing and energy-saving furnace doors cannot be used because they are fixed to the front of the loading platform. Therefore, only lift-type furnace doors can be selected. The sealing furnace lining 4 is made of refractory fiber, ensuring that internal temperature does not escape during operation, preventing heat waste. Multiple furnace heating elements 10 are provided, allowing for more accurate and effective temperature control within the furnace. The heating elements 10 are evenly distributed on the inner wall of the furnace lining 4. Multiple casters 13 are also evenly distributed, providing better support and stability.

[0024] One specific application of this embodiment is as follows: This utility model provides two types of furnace doors 8, allowing users to choose one type based on actual usage, conditions, and environment. In use, the operator first places the workpiece to be heated onto the fixed loading platform 5. Then, the drive mechanism 2 is activated, causing the moving wheels 13 to rotate. The moving wheels 13 then move the movable furnace body 1, which moves above the fixed loading platform 5 until it reaches a sealing position with the furnace door 8. The furnace door 8 is then closed to complete the seal. Subsequently, the platform heating element 7 and the furnace body heating element 10 are powered on to heat the workpiece. The heating process is then set via the control panel. To ensure the heating achieves the required effect, after heating is complete, the furnace door 8 is opened, the drive mechanism 2 is activated to move the movable furnace body 1 away, and then the workers unload the heated workpieces and place the next batch of heated workpieces. This device is set to move the furnace body 1, so that the furnace body moves while the fixed loading platform 5 does not move. Since the furnace body is composed of a furnace shell, refractory fiber furnace lining 4 and furnace body heating element 10, it is lightweight, the drive device is simple, and it is easy to install and maintain. The fixed loading platform 5 is a load-bearing mixing platform. The mixing platform is composed of a platform shell, a top furnace bottom plate, a platform heating element 7, refractory bricks 6, a lower layer of insulating bricks and castables, which greatly reduces the manufacturing cost of the electric furnace and reduces the failure rate.

[0025] 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 present invention. 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.

[0026] The preferred embodiments of this utility model disclosed above are merely illustrative of the present 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 this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A tabletop resistance furnace, comprising a movable furnace body (1) and a fixed charging platform (5), characterized in that: The fixed loading platform (5) is fixedly installed on the foundation (14). A mobile furnace body (1) is arranged around the fixed loading platform (5). The mobile furnace body (1) includes a furnace shell (11). A furnace lining (4) is fixedly installed on the inner wall of the furnace shell (11). A furnace heating element (10) is fixedly installed on the inner wall of the furnace lining (4). A track (3) is fixedly installed on the foundation (14). The track (3) is located directly below the side wall of the mobile furnace body (1). A moving wheel (13) is fixedly installed on the lower wall of the furnace shell (11). The moving wheel (13) is located on the track (3). A drive mechanism (2) is provided on the lower wall of the furnace shell (11). The drive mechanism (2) is connected to the moving wheel (13). A furnace door (8) is provided on the furnace opening end face of the mobile furnace body (1).

2. A tabletop resistance furnace according to claim 1, characterized in that: The fixed loading platform (5) includes a platform frame (12) and a support pier (9). The support pier (9) is fixedly installed on the foundation (14). The platform frame (12) is fixedly installed on the upper wall of the support pier (9). Refractory bricks (6) are provided on the platform frame (12). The refractory bricks (6) cover the platform frame (12). Platform heating elements (7) are fixedly installed between the refractory bricks (6).

3. A tabletop resistance furnace according to claim 1, characterized in that: The furnace door (8) is configured as a lifting furnace door, which includes a lifting electric hoist, pulleys and furnace door (8). The output end of the lifting electric hoist is connected to the furnace door (8) through the pulleys.

4. A tabletop resistance furnace according to claim 1, characterized in that: The furnace lining (4) is made of refractory fiber.

5. A tabletop resistance furnace according to claim 1, characterized in that: The furnace body heating element (10) is provided in multiple ways, and the furnace body heating element (10) is evenly distributed on the inner wall of the furnace lining (4).

6. A tabletop resistance furnace according to claim 1, characterized in that: The movable wheels (13) are evenly distributed in multiples.

7. A tabletop resistance furnace according to claim 1, characterized in that: The furnace door is configured as an insertable furnace door, which is fixedly installed at the front end of the fixed loading platform (5). The furnace door portion of the furnace lining (4) is provided with a wedge-shaped protrusion, which cooperates with the insertable furnace door.

Images