Detachable magnetic plug device for continuous casting tundish nozzle

Abstract

The utility model relates to metallurgy continuous casting equipment technical field discloses detachable magnetic plug device for continuous casting tundish nozzle, including operating rod, one end of operating rod is fixed with round base, one end surface detachable installation of round base has steel plug, and the one end away from round base of steel plug sets up the conical end, the one end surface of round base close to steel plug is coaxial with steel plug and is opened to have the locating recess, and the one end surface away from steel plug of round base sets up with the strong magnet of steel plug magnetic attraction. This detachable magnetic plug device for continuous casting tundish nozzle realizes the quick, stable connection between steel plug and operating rod through strong magnetic adsorption, and operating personnel only need to hold operating rod, can easily and accurately align steel plug to tundish nozzle nozzle place, greatly improves the efficiency and accuracy of plugging operation, reduces the production interruption time due to the plug installation problem, and is easy to carry, store and manage, and has strong versatility.

Description

Technical Field

[0001] This utility model relates to the field of metallurgical continuous casting equipment technology, and in particular to a detachable magnetic plug device for the tundish nozzle of continuous casting. Background Technology

[0002] In the continuous casting process of steelmaking plants, the sealing operation of the tundish nozzle is a key step to ensure production continuity.

[0003] Traditional sealing methods often use relatively simple tools, directly holding the plug for operation. After one use, the plug is scrapped. The plug operation is for single use, and after the sealing operation, it is either scrapped and discarded along with the tool or separately. This not only causes a huge waste of refractory materials and other resources, but also significantly increases the production cost of a single continuous casting. There is a lack of a fast, reliable and repeatable connection mechanism to firmly connect the operating tool and the plug body.

[0004] Therefore, a detachable magnetic plug device for the tundish nozzle in continuous casting is proposed. Utility Model Content

[0005] Given that the existing plugging operation is for single use only, and the plugging operation is then discarded along with the tool or separately, resulting in resource waste, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a detachable magnetic plug device for the tundish nozzle of continuous casting. The purpose is that the plug, as a consumable, can be repeatedly machined and used, which significantly reduces raw material consumption and production costs compared to disposable plugs.

[0007] To solve the above technical problems, this utility model provides the following technical solution: a detachable magnetic plug device for the tundish nozzle of continuous casting, including an operating rod, one end of which is fixed with a circular base, and a steel plug is detachably installed on one end face of the circular base, and a tapered end is provided on the end of the steel plug away from the circular base;

[0008] The circular base has a positioning groove on one end face near the steel plug, which is coaxial with the steel plug. The circular base has a strong magnet on the other end face away from the steel plug, which is magnetically attracted to the steel plug.

[0009] As an improved technical solution, the peripheral surface of the circular base is provided with a pry groove that communicates with the positioning groove, and the depth of the pry groove is greater than the depth of the positioning groove.

[0010] As an improved technical solution, an installation cavity is provided at the center of the bottom of the circular base, and a heat insulation ring is fixed inside the installation cavity, with a strong magnet fixed in the inner hole of the heat insulation ring.

[0011] As an improved technical solution, the strong magnetic eraser is made of rare earth permanent magnet material, the steel plug is made of ordinary carbon steel, the circular base is made of high-strength alloy steel, and the length of the steel plug is 1.5 meters.

[0012] As an improved technical solution, an arc-shaped connecting seat is welded to the peripheral surface of the circular base on the side away from the pry groove. The arc-shaped connecting seat is fixedly connected to the operating rod by a welding rod provided on the end face away from the circular base.

[0013] As an improved technical solution, a heat insulation plate is sleeved on the end of the operating rod away from the circular base, and a grip end is provided on the end of the operating rod near the heat insulation plate. A heat insulation rubber sleeve is sleeved on the grip end, and a heat insulation rubber plate is integrally formed on the end of the heat insulation rubber sleeve near the heat insulation plate.

[0014] After adopting the above technical solution, the beneficial effects of this utility model are:

[0015] 1. This utility model limits the position of the steel plug on the circular base by setting a positioning groove, which helps to keep the steel plug and the circular base in a coaxial state, improving the stability of the steel plug installation. Furthermore, the steel plug is detachably installed by magnetic attraction between the steel plug and the strong magnet, which facilitates the installation and replacement of the steel plug. At the same time, the steel plug can be easily lifted out of the positioning groove and detached from the magnetic attraction between it and the strong magnet by inserting a pry bar into the pre-reserved pry groove, which further facilitates the disassembly of the steel plug.

[0016] 2. This utility model achieves a quick and stable connection between the steel plug and the operating rod through strong magnetic adsorption. The operator only needs to hold the operating rod to easily and accurately align the steel plug to the tundish nozzle, which greatly improves the efficiency and accuracy of the plugging operation, reduces production interruption time caused by plug installation problems, and is easy to carry, store and manage. It is highly versatile and applicable to the operation of tundish nozzles of different specifications, reducing tool equipment costs.

[0017] 3. In this utility model, the heat-insulating rubber sleeve makes it convenient for operators to hold the device and avoids burns from high temperatures. Furthermore, the heat-insulating plate blocks the hand, preventing the hand from coming out of the heat-insulating rubber sleeve and coming into contact with the part of the operating rod that is not covered by the heat-insulating rubber sleeve. Under the heat insulation effect of the heat-insulating rubber plate, it is easier to avoid burns from high temperatures, thus improving the safety and comfort of use. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the 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. Among them:

[0019] Figure 1 This is a schematic diagram of the overall structure of the detachable magnetic plug device for the tundish nozzle in continuous casting according to this utility model.

[0020] Figure 2 This is a partial exploded structural diagram of the detachable magnetic plug device for the tundish nozzle of continuous casting according to this utility model.

[0021] Figure 3 This is a bottom view of the circular base of the detachable magnetic plug device for the tundish nozzle in continuous casting according to this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Operating lever; 2. Circular base; 3. Steel plug; 4. Conical end; 5. Arc-shaped connecting seat; 6. Welding rod; 7. Positioning groove; 8. Pry groove; 9. Heat insulation plate; 10. Grip end; 11. Heat insulation rubber sleeve; 12. Heat insulation rubber disc; 13. Mounting cavity; 14. Strong magnet; 15. Heat insulation ring. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Example 1

[0026] Reference Figures 1-3 This is the first embodiment of the present invention, which provides a detachable magnetic plug device for the tundish nozzle of continuous casting. The detachable magnetic plug device for the tundish nozzle of continuous casting includes an operating rod 1, a circular base 2 fixed to one end of the operating rod 1, a steel plug 3 detachably installed on one end face of the circular base 2, and a tapered end 4 provided at the end of the steel plug 3 away from the circular base 2.

[0027] A positioning groove 7 is provided on the end face of the circular base 2 near the steel plug 3, which is coaxial with the steel plug 3. The positioning groove 7 limits the position of the steel plug 3 on the circular base 2, which helps to keep the steel plug 3 and the circular base 2 in a coaxial state and improves the stability of the installation of the steel plug 3. A strong magnet 14 is provided on the end face of the circular base 2 away from the steel plug 3, which is magnetically attracted to the steel plug 3. The steel plug 3 is detachably installed by magnetic attraction between the steel plug 3 and the strong magnet 14, which facilitates the installation, removal and replacement of the steel plug 3.

[0028] The steel plug 3 and the operating rod 1 are quickly and securely connected by strong magnetic adsorption. The operator only needs to hold the operating rod 1 to easily and accurately align the steel plug 3 to the tundish nozzle, which greatly improves the efficiency and accuracy of the plugging operation, reduces the production interruption time caused by plug installation problems, and is easy to carry, store and manage. It is versatile and suitable for tundish nozzle operation of different specifications, reducing the cost of tool equipment.

[0029] The circular base 2 has a pry groove 8 on its peripheral surface that communicates with the positioning groove 7. The depth of the pry groove 8 is greater than the depth of the positioning groove 7. By inserting a pry bar into the pry groove 8, the steel plug 3 can be easily lifted out of the positioning groove 7 and separated from the magnetic attraction between it and the strong magnet 14, which further facilitates the disassembly of the steel plug 3.

[0030] A mounting cavity 13 is provided at the center of the bottom of the circular base 2. A heat insulation ring 15 is fixed inside the mounting cavity 13, and a strong magnet 14 is fixed in the inner hole of the heat insulation ring 15.

[0031] The strong magnet 14 is made of rare-earth permanent magnet material, possessing high magnetic energy product and high coercivity. Even under high-temperature environments, it maintains strong magnetic force, stably adsorbing the steel plug and preventing accidental detachment during operation. The steel plug 3 is made of ordinary carbon steel, easy to process and shape. After repeated use and wear, when the conical end 4 of the conical steel plug shows steel adhesion wear and can no longer meet the sealing requirements, it can be disassembled and sent to the workshop for machining to repair the conical surface, restoring it to standard dimensions, and then reused, greatly reducing the risk of clogging. The reduced replacement frequency of the plug saves production costs. The steel plug 3, as a consumable, can be repeatedly machined and used. Compared with disposable plugs, it significantly reduces raw material consumption, further reduces production costs, and improves the economic efficiency of continuous casting production in steel plants. The circular base 2 is made of high-strength alloy steel, which has good high-temperature resistance and wear resistance, ensuring stable operation for a long time in the high-temperature environment of continuous casting. It is machined and its outer diameter is designed according to the outer diameter of the tundish nozzle commonly used in steel plants to ensure a tight fit and provide stable support for subsequent plug sealing. The steel plug 3 is 1.5 meters long.

[0032] An arc-shaped connecting seat 5 is welded to the peripheral surface of the circular base 2 on the side away from the pry groove 8. The arc-shaped connecting seat 5 is fixedly connected to the operating rod 1 through a welding rod 6 set on one end face away from the circular base 2.

[0033] A heat insulation plate 9 is sleeved on the end of the operating lever 1 away from the circular base 2. A grip end 10 is provided on the end of the operating lever 1 near the heat insulation plate 9. The grip end 10 adopts an ergonomic design and is covered with a heat insulation rubber sleeve 11. A heat insulation rubber plate 12 is integrally formed on the end of the heat insulation rubber sleeve 11 near the heat insulation plate 9. The heat insulation rubber sleeve 11 is designed to facilitate the operator's hand grip and avoid high temperature burns. In addition, the heat insulation plate 9 is designed to block the hand and prevent the hand from leaving the heat insulation rubber sleeve 11 and coming into contact with the part of the operating lever 1 that is not covered by the heat insulation rubber sleeve 11. Under the heat insulation effect of the heat insulation rubber plate 12, it is helpful to further avoid high temperature burns and improve the safety and comfort of use.

[0034] The working principle of this utility model is as follows: In the continuous casting production process of steelmaking plant, when it is necessary to seal the tundish nozzle, the operator holds the operating rod 1, aligns the steel plug 3 adsorbed on the circular base 2 with the nozzle, uses the circular base 2 to fit tightly with the nozzle periphery for positioning, slowly pushes the operating rod 1, and steadily inserts the conical end 4 into the nozzle to complete the sealing operation.

[0035] After the operation is completed, if the steel plug 3 needs to be replaced, simply remove the steel plug 3 from the operating rod 1 and replace it with a new, repaired or spare steel plug 3 before proceeding with the next operation.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A detachable magnetic plug device for the tundish nozzle in continuous casting, comprising an operating rod (1), characterized in that: One end of the operating lever (1) is fixed with a circular base (2), and a steel plug (3) is detachably installed on one end face of the circular base (2), and a tapered end (4) is provided on the end of the steel plug (3) away from the circular base (2); The circular base (2) has a positioning groove (7) on one end face near the steel plug (3) and is coaxial with the steel plug (3). The circular base (2) has a strong magnet (14) on one end face away from the steel plug (3) that is magnetically attracted to the steel plug (3).

2. The detachable magnetic plug device for the tundish nozzle in continuous casting according to claim 1, characterized in that: The circular base (2) has a pry groove (8) on its peripheral surface that communicates with the positioning groove (7), and the depth of the pry groove (8) is greater than the depth of the positioning groove (7).

3. The detachable magnetic plug device for the tundish nozzle in continuous casting according to claim 2, characterized in that: The circular base (2) has an installation cavity (13) at the center of its bottom. A heat insulation ring (15) is fixed inside the installation cavity (13), and a strong magnet (14) is fixed in the inner hole of the heat insulation ring (15).

4. The detachable magnetic plug device for the tundish nozzle in continuous casting according to claim 3, characterized in that: The strong magnet (14) is made of rare earth permanent magnet material, the steel plug (3) is made of ordinary carbon steel, the circular base (2) is made of high-strength alloy steel, and the steel plug (3) is 1.5 meters long.

5. The detachable magnetic plug device for the tundish nozzle in continuous casting according to claim 4, characterized in that: An arc-shaped connecting seat (5) is welded to the peripheral surface of the circular base (2) on the side away from the pry groove (8). The arc-shaped connecting seat (5) is fixedly connected to the operating rod (1) through a welding rod (6) provided on one end face away from the circular base (2).

6. The detachable magnetic plug device for the tundish nozzle in continuous casting according to claim 5, characterized in that: The operating lever (1) is fitted with a heat insulation plate (9) at one end away from the circular base (2). The operating lever (1) is provided with a grip end (10) at one end near the heat insulation plate (9). A heat insulation rubber sleeve (11) is fitted on the grip end (10). A heat insulation rubber plate (12) is integrally formed at one end of the heat insulation rubber sleeve (11) near the heat insulation plate (9).

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