Emergency protection device for medium-frequency smelting furnace

Abstract

The emergency protection device comprises a heating supporting shell and a smelting chamber arranged at the upper end of the heating supporting shell, supporting frames are arranged on the two corresponding sides of the heating supporting shell, the supporting frames are fixedly connected with the heating supporting shell through rotating connecting columns, and the rotating connecting columns are fixedly connected with the heating supporting shell. The rotary connecting column is rotationally connected with the supporting frame, a plurality of meshing supporting teeth are fixedly connected to the outer side of the rotary connecting column, the supporting frame is located between the two sets of meshing supporting teeth, and the two sets of meshing supporting teeth are connected with a first limiting plate and a second limiting plate in a meshing mode correspondingly; a telescopic motor is arranged on one side of the second limiting plate, the telescopic motor is fixedly connected with the supporting frame, and the first limiting plate is fixedly connected with the telescopic motor; according to the utility model, materials in the device and nearby workers can be protected in time, so that emergency protection can be carried out when the device breaks down.

Description

Technical Field

[0001] The utility model relates to the technical field of medium frequency smelting furnaces, in particular to an emergency protection device for medium frequency smelting furnaces. Background Art

[0002] The working principle of the medium frequency melting furnace is: a three-phase bridge-type fully controlled rectifier circuit is used to rectify the AC power into DC power, which becomes a constant DC current source after being smoothed by a reactor, and then the DC current is inverted into a single-phase medium frequency current of a certain frequency through a single-phase inverter bridge.

[0003] Medium frequency melting furnaces have the advantages of fast heating speed, less oxidation and decarburization, uniform heating, and high temperature control accuracy, so they are widely used. However, when a failure occurs during the use of the device, braking the rotating device alone can easily cause unstable braking of the device, resulting in the dumping of internal molten materials, causing waste of resources and threats to the safety of workers, and unable to provide stable emergency protection.

[0004] Therefore, we provide an emergency protection device for a medium frequency melting furnace. Utility Model Content

[0005] The purpose of the utility model is to provide an emergency protection device for a medium frequency smelting furnace in view of the above-mentioned technical problems, so as to achieve the effect of improving the stability of emergency braking protection.

[0006] In view of this, the utility model provides an emergency protection device for a medium frequency smelting furnace, comprising a heating support shell and a smelting chamber opened at the upper end of the heating support shell, support frames are arranged on corresponding sides of the heating support shell, the support frame is fixedly connected to the heating support shell through a rotating connecting column, the rotating connecting column is rotatably connected to the support frame, a plurality of meshing support teeth are fixedly connected to the outer side of the rotating connecting column, the support frame is located between two groups of the meshing support teeth, the two groups of the meshing support teeth are respectively meshed and connected with a first limit plate and a second limit plate, a telescopic motor is arranged on one side of the second limit plate, there are at least two telescopic motors, the telescopic motor is fixedly connected to the support frame, and the first limit plate is fixedly connected to the telescopic motor.

[0007] Preferably, the second limit plate is fixedly connected to the telescopic motor via a limit connecting frame, and the second limit plate is fixedly connected to the telescopic motor.

[0008] Preferably, the limiting connection frame is plugged into a limiting support groove, and the limiting support groove is opened on one side of the heating support shell.

[0009] Preferably, a support block is fixedly connected to one side of the heating support shell, and a limiting groove is provided on one side of the support block.

[0010] Preferably, the limiting groove is slidably connected to the first limiting plate, and the telescopic motor is fixedly arranged inside the supporting block.

[0011] Preferably, a signal receiver and a terminal processor are provided on one side of the heating support shell, the signal receiver is electrically connected to the terminal processor, the signal receiver is electrically connected to a push switch, and the terminal processor is electrically connected to the two telescopic motors.

[0012] Preferably, a rotating motor is fixedly connected to one side of the heating support shell, and the rotating motor is fixedly connected to the support frame.

[0013] Compared with the prior art, the utility model provides an emergency protection device for a medium frequency smelting furnace, which has the following beneficial effects:

[0014] 1. In the utility model, when a failure occurs in the device and the heating support shell needs to be stopped from rotating, the first limit plate on one side is extended and the second limit plate on the other side is contracted under the operation of two telescopic motors, so that the meshing support teeth on both sides are meshed and engaged at the same time, thereby achieving the effect of emergency braking of the rotating connecting column.

[0015] 2. The utility model enables the heating support shell to be rotated statically, which can provide timely protection for the materials inside the device and nearby workers, thereby providing emergency protection when a failure occurs in the device.

[0016] 3. The utility model, through the clamping effect of the limit support groove and the limit connection frame, the position of the limit connection frame and the second limit plate can be limited and stabilized, thereby ensuring the stability and reliability of the second limit plate and the meshing support teeth when they are engaged and limited.

[0017] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. The utility model has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front view structural schematic diagram of an emergency protection device for a medium frequency smelting furnace proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the top view of the structure of an emergency protection device for a medium frequency smelting furnace proposed by the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of a first limit plate of an emergency protection device for a medium frequency smelting furnace proposed by the utility model;

[0021] Figure 4The utility model is a schematic diagram of the second limit plate structure of the emergency protection device for the medium frequency melting furnace.

[0022] In the figure: 1. heating support shell; 2. smelting chamber; 3. rotating motor; 4. support frame; 5. rotating connecting column; 6. engaging support teeth; 7. first limit plate; 8. telescopic motor; 9. support block; 10. limit slot; 11. push switch; 12. signal receiver; 13. terminal processor; 14. second limit plate; 15. limit connecting frame; 16. limit support slot. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] Embodiment 1: An emergency protection device for a medium frequency melting furnace, such as Figure 1-Figure 4As shown, it includes a heating support shell 1 and a smelting chamber 2 opened at the upper end of the heating support shell 1. Support frames 4 are arranged on the corresponding two sides of the heating support shell 1. The support frame 4 is fixedly connected to the heating support shell 1 through a rotating connecting column 5. The rotating connecting column 5 is rotatably connected to the support frame 4. A plurality of meshing support teeth 6 are fixedly connected to the outer side of the rotating connecting column 5. The support frame 4 is located between two groups of meshing support teeth 6. The two groups of meshing support teeth 6 are respectively meshed and connected with a first limit plate 7 and a second limit plate 14. A telescopic motor 8 is arranged on one side of the second limit plate 14. There are at least two telescopic motors 8. The telescopic motor 8 is fixedly connected to the support frame 4. The first limit plate 7 is fixedly connected to the telescopic motor 8. When the device is in operation, the heating support The support shell 1 rotates to dump the processed materials inside the smelting chamber 2. The rotation of the heating support shell 1 drives the rotating connecting column 5 to rotate simultaneously under the support of the support frame 4. When the device fails and the heating support shell 1 needs to stop rotating, the first limit plate 7 on one side is extended and the second limit plate 14 on the other side is contracted under the operation of the two telescopic motors 8, so as to achieve the effect of simultaneously engaging and clamping the meshing support teeth 6 on both sides, thereby achieving the effect of emergency braking of the rotating connecting column 5, so that the heating support shell 1 is rotated stationary, which can timely protect the materials inside the device and the nearby personnel, so that emergency protection can be performed when the device fails.

[0026] like Figure 1-Figure 4 As shown, the second limit plate 14 is fixedly connected to the telescopic motor 8 through the limit connecting frame 15, the second limit plate 14 is fixedly connected to the telescopic motor 8, the limit connecting frame 15 is inserted into the limit support groove 16, the limit support groove 16 is opened on one side of the heating support shell 1, and the telescopic motor 8 is operated under the support of the support frame 4. The operation of the telescopic motor 8 can drive the limit support groove 16 on one side and the second limit plate 14 to move into the limit support groove 16. Through the clamping effect of the limit support groove 16 and the limit connecting frame 15, the position of the limit connecting frame 15 and the second limit plate 14 can be limited and stabilized, thereby ensuring the stability and reliability of the second limit plate 14 when engaging and limiting with the meshing support tooth 6.

[0027] like Figure 1-Figure 4 As shown, a support block 9 is fixedly connected to one side of the heating support shell 1, and a limiting groove 10 is provided on one side of the support block 9. The limiting groove 10 is slidably connected to the first limiting plate 7, and the telescopic motor 8 is fixedly arranged inside the support block 9. The stability of the first limiting plate 7 and the meshing support tooth 6 during meshing and limiting is ensured by the support of the support block 9 for the telescopic motor 8 and the limiting groove 10 for the sliding limiting support of the first limiting plate 7.

[0028] Embodiment 2: An emergency protection device for a medium frequency melting furnace, such as Figure 1-Figure 4As shown, a signal receiver 12 and a terminal processor 13 are provided on one side of the heating support shell 1, the signal receiver 12 is electrically connected to the terminal processor 13, the signal receiver 12 is electrically connected to the push switch 11, the terminal processor 13 is electrically connected to the two telescopic motors 8, by pressing the push switch 11, the signal receiver 12 receives the signal, and then transmits the signal to the terminal processor 13, under the control of the terminal processor 13, the telescopic motors 8 on both sides are operated at the same time, thereby achieving the effect of emergency braking protection of the device.

[0029] like Figure 1-Figure 4 As shown, a rotating motor 3 is fixedly connected to one side of the heating support shell 1, and the rotating motor 3 is fixedly connected to the support frame 4. By rotating the rotating motor 3 under the support of the support frame 4, it is ensured that the heating support shell 1 can rotate stably. By controlling the rotation of the rotating motor 3, the stability of the device during emergency braking can be further improved.

[0030] Working principle: By rotating the heating support shell 1, the processed material inside the smelting chamber 2 can be dumped. The rotation of the heating support shell 1 will drive the rotating connecting column 5 to rotate at the same time under the support of the support frame 4. When the device fails and the heating support shell 1 needs to stop rotating, the first limit plate 7 on one side is extended and the second limit plate 14 on the other side is contracted under the operation of the two telescopic motors 8, so as to achieve the effect of simultaneously engaging and clamping the meshing support teeth 6 on both sides, thereby achieving the effect of emergency braking of the rotating connecting column 5, so that the heating support shell 1 is rotated stationary, which can The material inside the device and the staff nearby are timely protected, so that emergency protection can be carried out when the device fails. At the same time, the telescopic motor 8 is operated under the support of the support frame 4, and the operation of the telescopic motor 8 can drive the limit support groove 16 and the second limit plate 14 on one side to move into the limit support groove 16. Through the clamping effect of the limit support groove 16 and the limit connecting frame 15, the position of the limit connecting frame 15 and the second limit plate 14 can be limited and stabilized, thereby ensuring the stability and reliability of the second limit plate 14 and the meshing support tooth 6 when they are engaged and limited.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An emergency protection device for a medium frequency smelting furnace, comprising a heating support shell (1), and a smelting chamber (2) opened at the upper end of the heating support shell (1), characterized in that: The heating support shell (1) is provided with support frames (4) on both corresponding sides. The support frame (4) is fixedly connected to the heating support shell (1) via a rotating connection column (5). The rotating connection column (5) is rotatably connected to the support frame (4). A plurality of meshing support teeth (6) are fixedly connected to the outer side of the rotating connection column (5). The support frame (4) is located between two groups of the meshing support teeth (6). The two groups of the meshing support teeth (6) are respectively meshedly connected to a first limit plate (7) and a second limit plate (14). A telescopic motor (8) is provided on one side of the second limit plate (14). There are at least two telescopic motors (8). The telescopic motor (8) is fixedly connected to the support frame (4). The first limit plate (7) is fixedly connected to the telescopic motor (8).

2. The emergency protection device for a medium frequency smelting furnace according to claim 1, characterized in that: The second limit plate (14) is fixedly connected to the telescopic motor (8) via a limit connecting frame (15); the second limit plate (14) is fixedly connected to the telescopic motor (8).

3. The emergency protection device for a medium frequency smelting furnace according to claim 2, characterized in that: The position-limiting connection frame (15) is plugged into a position-limiting support groove (16), and the position-limiting support groove (16) is provided on one side of the heating support shell (1).

4. The emergency protection device for a medium frequency smelting furnace according to claim 1, characterized in that: A support block (9) is fixedly connected to one side of the heating support shell (1), and a limiting groove (10) is provided on one side of the support block (9).

5. The emergency protection device for a medium frequency smelting furnace according to claim 4, characterized in that: The limiting groove (10) is slidably connected to the first limiting plate (7), and the telescopic motor (8) is fixedly arranged inside the supporting block (9).

6. The emergency protection device for a medium frequency smelting furnace according to claim 1, characterized in that: A signal receiver (12) and a terminal processor (13) are provided on one side of the heating support shell (1); the signal receiver (12) is electrically connected to the terminal processor (13); the signal receiver (12) is electrically connected to a push switch (11); and the terminal processor (13) is electrically connected to the two telescopic motors (8).

7. The emergency protection device for a medium frequency smelting furnace according to claim 1, characterized in that: A rotating motor (3) is fixedly connected to one side of the heating support shell (1), and the rotating motor (3) is fixedly connected to the support frame (4).

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