Vacuum furnace power-off emergency casting device

Abstract

The utility model relates to a kind of vacuum furnace power-off emergency casting device, belong to metallurgical industry steelmaking production technical field.The technical scheme is: containing ladle (1), plug block (2), ingot mould (3), pulley block (4), steel wire rope (6) and pull ring (7), plug block (2) is installed in the bottom of ladle (1), ingot mould (3) is fixed on the steel structure (11) of supporting ladle (1), ingot mould (3) is located directly below ladle (1);Steel wire rope (6) one end is embedded to plug block (2) inside, the other end passes pulley block (4), passes through furnace door (10) and is fixed to pull ring (7), pull ring (7) is installed on the outside of furnace door (10).The utility model has the beneficial effects that: plug block is taken out by the cooperation of steel wire rope and pulley block, realize emergency casting under the condition of accident, simple structure, need not rely on the assistance of electric power, hydraulic pressure, maintenance cost is low.

Description

Technical Field

[0001] This utility model relates to an emergency casting device for a vacuum furnace in the event of a power outage, belonging to the field of steelmaking production technology in the metallurgical industry. Background Technology

[0002] Medium-frequency furnaces are currently the most widely used steelmaking equipment. They utilize changes in medium-frequency current to generate eddy currents within the raw materials, heating molten iron to over 1400°C, and then adding various alloys to smelt it into special steel grades. Because this process relies on electrical energy, it requires a high degree of power supply stability, especially during the smelting process, where sudden power outages are unacceptable. If a sudden power outage occurs, the molten steel at over 1400°C, along with the surrounding furnace lining, coils, and protective covers, will lose the cooling effect of circulating water and be damaged or melted under the heat of the molten steel. Serious smelting accidents such as steel leakage may also occur.

[0003] In the smelting process, corresponding emergency safety facilities are designed to address the unavoidable power outages. Temporary measures such as installing diesel generators or storage batteries can ensure emergency casting and avoid significant losses. However, these measures require a large site and daily maintenance, making them less economical for small and medium-sized medium-frequency steelmaking furnaces. Utility Model Content

[0004] The purpose of this invention is to provide an emergency casting device and method for a vacuum furnace in the event of a power outage, which can realize emergency casting in the event of a power outage without occupying a large space, thus solving the problems existing in the background art.

[0005] The technical solution of this utility model is:

[0006] An emergency casting device for a vacuum furnace in the event of a power outage includes a ladle, a stopper block, an ingot mold, a pulley system, a wire rope, and a pull ring. The stopper block is installed at the bottom of the ladle, and the ingot mold is fixed on the steel structure supporting the ladle, with the ingot mold located directly below the ladle. One end of the wire rope is embedded inside the stopper block, and the other end passes around the pulley system, through the furnace door, and is fixed to the pull ring, which is installed on the outside of the furnace door.

[0007] The pulley assembly includes pulley A and pulley B. Pulley A is installed at the bottom of the ingot mold, and pulley B is installed at the top of the ingot mold near the furnace door.

[0008] The pulley A is located directly below the stopper block.

[0009] The steel wire rope passes through the furnace door and is sealed by vacuum sealing mud.

[0010] The plug is a cone shape, smaller at the top and larger at the bottom.

[0011] The ingot mold is shaped like a water tank, with an outer steel plate and an inner high-temperature resistant material.

[0012] Using this invention, in the event of an emergency power outage, pulling the pull ring will cause the steel wire rope to pull the plug out from the bottom of the ingot mold, and the molten steel will flow out through the plug opening into the ingot mold, thus achieving emergency casting.

[0013] The beneficial effects of this utility model are: this utility model removes the plug block by cooperating with the steel wire rope and pulley system, realizing emergency casting in the event of an accident. It has a simple structure, requires no daily maintenance, does not rely on the assistance of electricity or hydraulic force, greatly expands the scope of application, and has low maintenance costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the installation structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the furnace door installation structure;

[0017] Figure 4 This is a schematic diagram of the pulley system structure;

[0018] Figure 5 This is the main view of the ingot mold;

[0019] Figure 6 This is a top view of the ingot mold;

[0020] In the diagram: 1. Steel ladle; 2. Stopper block; 3. Ingot mold; 4. Pulley block; 5. Roller; 6. Steel wire rope; 7. Pull ring; 8. Furnace body; 9. Hydraulic cylinder; 10. Furnace door; 11. Steel structure; 12. Vacuum sealing mud; 13. Pin shaft; 14. Bracket; 15. Sheath; 16. Steel plate; 17. Medium-sized high-temperature resistant material. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and examples.

[0022] See attached document Figure 1-6 An emergency casting device for a vacuum furnace in the event of a power outage includes a ladle 1, a stopper block 2, an ingot mold 3, a pulley block 4, a wire rope 6, and a pull ring 7. The stopper block 2 is installed at the bottom of the ladle 1, and the ingot mold 3 is fixed on the steel structure 11 supporting the ladle 1, with the ingot mold 3 located directly below the ladle 1. One end of the wire rope 6 is embedded inside the stopper block 2, and the other end passes around the pulley block 4, passes through the furnace door 10, and is fixed to the pull ring 7, which is installed on the outside of the furnace door 10.

[0023] In this embodiment, refer to the appendix Figure 1-6The stopper 2 is a cone-shaped piece with a smaller upper part and a larger lower part. It is installed at the lower part of the ladle 1 and extends into the interior of the ladle 1. The ingot mold 3 is shaped like a pool. The outside is made of steel plate 16 and the inside is made of medium-sized high-temperature resistant material 17. It is fixed to the steel structure 11 supporting the ladle 1 by bolts and is located directly below the ladle 1. One end of the wire rope 6 is embedded in the inside of the stopper 2, and the other end passes around pulleys A4.1 and B4.2, passes through the furnace door 10, and is fixed to the pull ring 7. The pull ring 7 is installed on the outside of the furnace door 10. Pulley A4.1 is installed at the bottom of the ingot mold 3, below the stopper 2, and pulley B4.2 is installed at the top of the ingot mold 3 near the furnace door.

[0024] Figure 1 , 2 As shown in Figure 3, the steel wire rope 6 passes through the furnace door 10 and is sealed using vacuum sealing mud 12, which can both achieve the sealing function and is a sealing material that can be easily destroyed by external force.

[0025] Figure 1 , 4 The pulley block 4 includes pulley A4.1 and pulley B4.2. Both pulley A4.1 and pulley B4.2 are composed of roller 5, pin 13, bracket 14, and sheath 15. The bracket 14 is the main frame structure. The roller 5 is mounted on the pin 13, which passes through the bracket 14. The sheath 15 is mounted on the bracket 14 and is located outside the roller 5 to prevent the wire rope 6 from falling out of the groove of the roller 5.

[0026] In the event of an emergency power outage, when steel pouring is necessary to mitigate the danger, simply pull the pull ring 7 out of the furnace door 10, and use manpower, a forklift, or other power to pull the steel wire rope 6 outward. The plug 2 will be pulled out through the steel wire rope 6, and the molten steel will flow out through the plug opening into the ingot mold 3 to achieve emergency casting.

[0027] An embodiment of this utility model on a 500Kg vacuum testing furnace is as follows:

[0028] Block 2: Top diameter 80mm, bottom diameter 100mm, height 80mm;

[0029] Ingot mold 3: Length 1600mm, width 1000mm, height 400mm;

[0030] Wire rope 6: Diameter 6mm;

[0031] Pull ring 7: Length 100mm, Width 800mm, Diameter 8mm;

[0032] Roller 5: 80mm in diameter, 20mm in thickness

[0033] Pin 13: Diameter 20mm, Length 50mm;

[0034] Bracket 14: Length 100mm, Width 40mm;

[0035] Sheath 15: Length 70mm, Width 15mm;

[0036] Vacuum sealing mud 12: No. 80 vacuum mud.

Claims

1. A power failure emergency casting device for a vacuum furnace, characterized by: It includes a ladle (1), a stopper (2), a mold (3), a pulley system (4), a wire rope (6), and a pull ring (7). The stopper (2) is installed at the bottom of the ladle (1). The mold (3) is fixed on the steel structure (11) that supports the ladle (1). The mold (3) is located directly below the ladle (1). One end of the wire rope (6) is embedded inside the stopper (2), and the other end passes around the pulley system (4), passes through the furnace door (10), and is fixed to the pull ring (7). The pull ring (7) is installed on the outside of the furnace door (10).

2. The power failure emergency casting device for vacuum furnace according to claim 1, characterized in that: The pulley assembly (4) includes pulley A (4.1) and pulley B (4.2). Pulley A (4.1) is installed at the bottom of the ingot mold (3), and pulley B (4.2) is installed at the top of the ingot mold (3) on the side near the furnace door (10).

3. The power failure emergency casting device for vacuum furnace according to claim 2, characterized in that: The pulley A (4.1) is located directly below the stopper (2).

4. The power-off emergency casting device for vacuum furnace according to claim 1 or 2, characterized in that: The wire rope (6) passes through the furnace door (10) and is sealed by vacuum sealing mud (12).

5. The power failure emergency casting device for vacuum furnace according to claim 1, characterized in that: The plug (2) is a cone shape with a smaller upper part and a larger lower part.

6. The power failure emergency casting device for vacuum furnace according to claim 1, characterized in that: The ingot mold (3) is shaped like a pool, with an outer steel plate (16) and an inner high-temperature resistant material (17).

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