Lining for intermediate frequency furnace

Abstract

The utility model discloses a lining for an intermediate frequency furnace, which relates to the technical field of intermediate frequency furnace linings and comprises an intermediate frequency furnace body, a lining body is arranged in the intermediate frequency furnace body, the bottom of the lining body is fixedly connected with a mounting plate, and the bottom of the mounting plate is fixedly connected with a limiting block. Limiting grooves matched with the limiting blocks are formed in the bottom of an inner cavity of the intermediate frequency furnace body, a fixing mechanism is further arranged between the lining body and the intermediate frequency furnace body, and the fixing mechanism is composed of a supporting plate, a fixing bolt, an extending plate and a nut. The lining body can be rapidly positioned through the limiting blocks and the limiting grooves, the positioned lining body can be fixed through the fixing mechanism, the lining body can be rapidly installed through the structural design, the stability and firmness of the lining body after installation can be guaranteed, and the lining body can be conveniently and rapidly installed. And the lining body is prevented from loosening.

Description

Technical Field

[0001] This utility model relates to the field of medium-frequency furnace lining technology, specifically to a lining for a medium-frequency furnace. Background Technology

[0002] The lining of the medium-frequency furnace in the silver smelting process is generally made by ramming and binding. Because the lining is greatly affected by temperature changes, after multiple heating and cooling cycles, its chemical stability decreases, it is easily eroded and peeled off, its resistance to high-temperature stamping decreases significantly, and it is prone to furnace penetration. Its service life is only 5-10 heats, which cannot meet the needs of continuous production, and at the same time increases the maintenance cost.

[0003] An improved lining for a medium-frequency furnace used in silver casting, disclosed in Chinese Patent Document CN202204308U, has a lifespan of 60-100 furnace cycles after being formed by ramming material and graphite dry pot bonding. The medium-frequency furnace system meets the requirements for safe and civilized production and environmental protection, and is convenient, simple to use, and highly operable. However, the outer surface of the lining in the aforementioned device is cylindrical, lacking additional auxiliary installation measures, making the connection between the lining and the furnace circuit inconvenient and time-consuming. Therefore, an improved lining for a medium-frequency furnace is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a lining for an intermediate frequency furnace to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lining for an intermediate frequency furnace, comprising an intermediate frequency furnace body, an inner lining body disposed inside the intermediate frequency furnace body, an mounting plate fixedly connected to the bottom of the inner lining body, a limiting block fixedly connected to the bottom of the mounting plate, a limiting groove adapted to the limiting block being opened at the bottom of the inner cavity of the intermediate frequency furnace body, and a fixing mechanism further disposed between the inner lining body and the intermediate frequency furnace body, the fixing mechanism being composed of a support plate, fixing bolts, an extension plate and nuts.

[0006] As a further preferred embodiment of this technical solution, the support plate is an annular plate, which is fixedly sleeved on the upper opening edge of the medium-frequency furnace body. The support plate has multiple fixing holes. An extension plate is fixedly connected to the upper edge of the inner lining body. The extension plate has an annular structure. The extension plate has mating holes above the multiple fixing holes. The fixing bolt passes through the mating holes and fixing holes in sequence, and the end of the fixing bolt is threaded with a nut.

[0007] As a further preferred embodiment of this technical solution, the plurality of fixing holes are arranged in a ring array.

[0008] As a further preferred embodiment of this technical solution, a pressure plate is provided between the nut of the fixing bolt and the extension plate, and the pressure plate has a through hole for accommodating the bolt thread.

[0009] As a further preferred embodiment of this technical solution, the distance between the upper surface of the extension plate and the lower surface of the limiting block is equal to the distance between the bottom of the inner cavity of the limiting groove and the upper surface of the support plate.

[0010] As a further preferred embodiment of this technical solution, a coil is provided on the inner wall of the medium-frequency furnace body, and the diameter of the inner lining body is smaller than the inner diameter of the coil.

[0011] As a further preferred embodiment of this technical solution, the upper opening of the inner lining body is configured as a trumpet-shaped structure that is wider at the top and narrower at the bottom.

[0012] This utility model provides a lining for an intermediate frequency furnace, which has the following beneficial effects:

[0013] This utility model can quickly position the inner lining body by setting a limiting block and a limiting groove, and can fix the inner lining body after positioning by setting a fixing mechanism. This structural design can quickly complete the installation of the inner lining body and ensure the stability and firmness of the inner lining body after installation, and prevent the inner lining body from becoming loose. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 This is a sectional dissection diagram of the overall structure of this utility model;

[0016] Figure 3 This is a dissecting diagram of the overall structure of this utility model from another perspective;

[0017] Figure 4 This is a split diagram of a portion of the structure of this utility model;

[0018] In the diagram: 1. Medium frequency furnace body; 2. Inner lining body; 3. Support plate; 4. Pressure plate; 5. Fixing bolt; 6. Coil; 7. Limiting groove; 8. Mounting plate; 9. Limiting block; 10. Extension plate; 11. Fixing hole; 12. Mating hole; 13. Through hole; 14. Nut. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0020] This utility model provides a technical solution: such as Figures 1 to 4As shown in this embodiment, a lining for an intermediate frequency furnace includes an intermediate frequency furnace body 1, an inner lining body 2 is provided inside the intermediate frequency furnace body 1, an mounting plate 8 is fixedly connected to the bottom of the inner lining body 2, a limiting block 9 is fixedly connected to the bottom of the mounting plate 8, a limiting groove 7 that is adapted to the limiting block 9 is opened at the bottom of the inner cavity of the intermediate frequency furnace body 1, and a fixing mechanism is also provided between the inner lining body 2 and the intermediate frequency furnace body 1. The fixing mechanism consists of a support plate 3, a fixing bolt 5, an extension plate 10 and a nut 14.

[0021] The support plate 3 is an annular plate, which is fixedly sleeved on the upper opening edge of the medium frequency furnace body 1. The support plate 3 has multiple fixing holes 11 arranged in an annular array. An extension plate 10 is fixedly connected to the upper edge of the inner lining body 2. The extension plate 10 has an annular structure. The extension plate 10 has mating holes 12 above the multiple fixing holes 11. The fixing bolts 5 pass through the mating holes 12 and the fixing holes 11 in sequence. The end of the fixing bolts 5 is threadedly connected to a nut 14.

[0022] In use, the inner lining body 2 is placed inside the medium frequency furnace body 1, and the limiting block 9 at the bottom of the inner lining body 2 is inserted into the limiting groove 7 inside the medium frequency furnace body 1 to limit the inner lining body 2. At this time, the extension plate 10 on the inner lining body 2 will press on the support plate 3 on the medium frequency furnace body 1, and the multiple mating holes 12 on the extension plate 10 will be aligned with the multiple fixing holes 11 on the support plate 3. By using the fixing bolts 5, nuts 14, fixing holes 11 and mating holes 12, the support plate 3 and the extension plate 10 can be fixed together.

[0023] A pressure plate 4 is provided between the nut of the fixing bolt 5 and the extension plate 10, and a through hole 13 is provided on the pressure plate 4 to accommodate the screw of the fixing bolt 5.

[0024] By setting the pressure plate 4, the force-bearing area between the nut of the fixing bolt 5 and the extension plate 10 can be increased, thus preventing the nut of the fixing bolt 5 from damaging the extension plate 10.

[0025] The distance between the upper surface of the extension plate 10 and the lower surface of the limiting block 9 is equal to the distance between the bottom of the inner cavity of the limiting groove 7 and the upper surface of the support plate 3.

[0026] This configuration ensures that after the inner lining body 2 is installed inside the medium-frequency furnace body 1, the extension plate 10 presses precisely on the support plate 3.

[0027] The inner wall of the medium-frequency furnace body 1 is provided with a coil 6, and the diameter of the inner lining body 2 is smaller than the inner diameter of the coil 6.

[0028] The upper opening of the inner lining body 2 is designed as a trumpet-shaped structure that is wider at the top and narrower at the bottom.

[0029] This design allows materials to easily enter the interior of the inner lining body 2.

[0030] This utility model provides a lining for an intermediate frequency furnace, and its specific working principle is as follows:

[0031] In use, the inner lining body 2 is placed inside the medium frequency furnace body 1, and the limiting block 9 at the bottom of the inner lining body 2 is inserted into the limiting groove 7 inside the medium frequency furnace body 1 to limit the inner lining body 2. At this time, the extension plate 10 on the inner lining body 2 will press on the support plate 3 on the medium frequency furnace body 1, and the multiple mating holes 12 on the extension plate 10 will be aligned with the multiple fixing holes 11 on the support plate 3. By using the fixing bolts 5, nuts 14, fixing holes 11 and mating holes 12, the support plate 3 and the extension plate 10 can be fixed together. This structural design can quickly complete the installation of the inner lining body 2 and ensure the stability and firmness of the inner lining body 2 after installation, avoiding loosening of the inner lining body 2.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lining for an intermediate frequency furnace, comprising an intermediate frequency furnace body (1), characterized in that: The interior of the medium frequency furnace body (1) is provided with an inner lining body (2). The bottom of the inner lining body (2) is fixedly connected with an installation plate (8). The bottom of the installation plate (8) is fixedly connected with a limiting block (9). The bottom of the inner cavity of the medium frequency furnace body (1) is provided with a limiting groove (7) that is compatible with the limiting block (9). A fixing mechanism is also provided between the inner lining body (2) and the medium frequency furnace body (1). The fixing mechanism consists of a support plate (3), a fixing bolt (5), an extension plate (10), and a nut (14). A pressure plate (4) is provided between the nut of the fixing bolt (5) and the extension plate (10). A through hole (13) for accommodating the screw of the fixing bolt (5) is provided on the pressure plate (4).

2. The lining for an intermediate frequency furnace according to claim 1, characterized in that: The support plate (3) is an annular plate. The support plate (3) is fixedly sleeved on the upper opening edge of the medium frequency furnace body (1). The support plate (3) has multiple fixing holes (11). An extension plate (10) is fixedly connected to the upper edge of the inner lining body (2). The extension plate (10) is an annular structure. The extension plate (10) has mating holes (12) above the multiple fixing holes (11). The fixing bolt (5) passes through the mating hole (12) and the fixing hole (11) in sequence. The end of the fixing bolt (5) is threadedly connected to a nut (14).

3. A lining for an intermediate frequency furnace according to claim 2, characterized in that: The plurality of fixing holes (11) are arranged in a ring array.

4. A lining for an intermediate frequency furnace according to claim 1, characterized in that: The distance between the upper surface of the extension plate (10) and the lower surface of the limiting block (9) is equal to the distance between the bottom of the inner cavity of the limiting groove (7) and the upper surface of the support plate (3).

5. A lining for an intermediate frequency furnace according to claim 1, characterized in that: A coil (6) is provided on the inner wall of the medium frequency furnace body (1), and the diameter of the inner lining body (2) is smaller than the inner diameter of the coil (6).

6. A lining for an intermediate frequency furnace according to claim 1, characterized in that: The upper opening of the inner lining body (2) is configured as a trumpet-shaped structure that is wider at the top and narrower at the bottom.

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