Sealing plate for preventing runout of tundish stopper rod hole

Abstract

The utility model discloses a sealing plate for preventing runout of a tundish stopper rod hole, and solves the technical problems that in the prior art, hardened sealing materials at the stopper rod hole are easy to blow out to cause runout, a stopper rod connecting rod is damaged to cause displacement of a stopper rod, and stable casting operation and stopper rod flow control in the casting process are influenced. The sealing plate for preventing runout of the tundish stopper rod hole comprises two sealing plate bodies. One side edge of the plugging plate is a fitting side, and an arc-shaped opening is formed in the fitting side; the attached sides of the two blocking plates are in butt joint to form a blocking plate body, and the openings in the two blocking plates are in butt joint to form a through hole. The sealing plate body in the sealing plate for preventing the tundish stopper rod hole from run-out can extrude and plug the plugging material at the stopper rod hole so as to prevent the situation of run-out caused by the fact that the plugging material is blown open, and the penetrating hole in the sealing plate body can contain a stopper rod and does not limit the action of the stopper rod, so that normal work of the stopper rod is not influenced, and the service life of the stopper rod is prolonged. Therefore, stable casting operation of the tundish and accurate flow control in the casting process are achieved.

Description

Technical Field

[0001] The present application belongs to the technical field of continuous casting machine accessories, and specifically relates to a sealing plate for preventing fire from escaping from a plug rod hole in a tundish. Background Art

[0002] Casting start is an important part of the casting operation and plays a key role in ensuring the normal casting of steel. During the casting process, the status of the shutter device and the stopper rod has a significant impact on the flow control of the casting start.

[0003] Currently, the gap between the stopper rod hole and the stopper rod is sealed with a plugging material to prevent fire from leaking between the stopper rod hole and the stopper rod.

[0004] However, as the working time increases, the plugging material will harden under continuous heat and lose its elasticity and firmness. The plugging material at the stopper hole can easily be blown away, causing flames. The flames escaping from the gap between the stopper hole and the stopper rod can directly burn the shutter device and the stopper rod connecting rod. In the worst case, it can cause the stopper rod to shift, affecting normal pouring and liquid level control during the casting process. In the worst case, it can directly cause the stopper rod connecting rod to burn and stop the normal operation. Therefore, the research on the device to prevent the tundish stopper rod from escaping fire is of great significance for the stable pouring operation and stopper rod flow control during the casting process. Summary of the Invention

[0005] In order to solve the above technical problems, the present application provides a sealing plate for preventing fire from escaping from the stopper rod hole of the tundish, so as to solve the technical problem in the prior art that the hardened sealing material at the stopper rod hole is easily blown out and causes fire, resulting in the stopper rod being unable to work normally and affecting the stable pouring operation and the stopper rod flow control during the pouring process.

[0006] The technical solutions adopted to achieve the purpose of this application are:

[0007] A sealing plate for preventing fire from escaping from a tundish plug rod hole, comprising two sealing plates;

[0008] One of the sides of the blocking plate is a fitting side, and the fitting side is provided with an arc-shaped opening; wherein,

[0009] The fitting sides of the two sealing plates are butted together to form a sealing plate body, which can compact the sealing material at the stopper rod hole. The openings on the two sealing plates are butted together to form a through-hole for the stopper rod to pass through, and the shape of the through-hole matches the cross-sectional shape of the stopper rod.

[0010] In order to better realize the present application, further optimization is made in the above structure so that the shape of the through hole matches the shape of the stopper rod hole.

[0011] In order to better realize the present application, further optimization is made in the above structure. The shape of the sealing plate body is elliptical, and the plane where the fitting side of the sealing plate is located is parallel to the long axis of the sealing plate body.

[0012] In order to better realize the present application, further optimization is made in the above structure. The shape of the sealing plate body is elliptical, and the plane where the fitting side of the sealing plate is located is perpendicular to the long axis of the sealing plate body.

[0013] In order to better realize the present application, further optimization is made in the above structure. The shape of the sealing plate body is elliptical, and the plane where the fitting side of the sealing plate is located has an angle α with the long axis of the sealing plate body, and the α is greater than 0° and less than 90°.

[0014] In order to better realize the present application, further optimization is made in the above structure. The two opposite planes on the blocking plate are respectively a blocking surface and a back surface. The blocking surface and the back surface are arranged opposite to each other, and a handle is provided on the back surface.

[0015] In order to better implement the present application, further optimization is made in the above structure, so that the length direction of the handle is parallel to the plane where the fitting side of the blocking plate is located.

[0016] In order to better implement the present application, further optimization is made in the above structure, and the handle is fixedly connected to the sealing plate by welding.

[0017] In order to better realize the present application, further optimization is made in the above structure, and the sealing plate is made of refractory material or heat-resistant material.

[0018] In order to better realize the present application, further optimization is made in the above structure, and the blocking plate is an iron plate.

[0019] It can be seen from the above technical solution that the sealing plate body in the sealing plate for preventing fire from escaping from the stopper rod hole of the tundish provided in this application can squeeze the sealing material to seal the stopper rod hole to prevent the sealing material from being blown away and causing fire, and the perforations on the sealing plate body can accommodate the stopper rod without restricting the movement of the stopper rod and will not affect the normal work of the stopper rod, thereby realizing stable pouring operation of the tundish and precise flow control during the pouring process, creating favorable conditions for the subsequent normal pouring production of the tundish. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a sealing plate (the plane of the bonding side is parallel to the long axis of the sealing plate body) for preventing fire from escaping from the tundish plug rod hole provided by the present application;

[0021] Figure 2 for Figure 1A schematic diagram of the structure of the sealing plate for preventing the tundish plug rod hole from escaping fire when in use;

[0022] Figure 3 This is a schematic structural diagram of a sealing plate (the plane of the bonding side is perpendicular to the long axis of the sealing plate body) for preventing fire from escaping from the tundish plug rod hole provided by this application;

[0023] Figure 4 This is a schematic structural diagram of a sealing plate provided in the present application for preventing fire from escaping from a tundish plug rod hole (the plane where the bonding side is located has an angle α with the long axis of the sealing plate body).

[0024] Description of reference numerals:

[0025] 1-blocking plate, 11-fitting side, 12-opening;

[0026] 2-Handle. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to which this application belongs to understand this application more clearly, the technical solution of this application is described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0028] In the embodiments of this application, Figures 1 to 4 As shown, the sealing plate for preventing the tundish plug rod hole from escaping fire comprises two sealing plates 1 with the same structure; wherein,

[0029] One of the sides of the blocking plate 1 is a fitting side 11 , and the fitting side 11 is provided with an arc-shaped opening 12 .

[0030] When using the sealing plate for preventing the tundish plug hole from escaping fire, the staff can butt the two sealing plates 1 together on their fitting sides 11 to form a sealing plate body and place it on the plug hole. Figure 2 , in order to squeeze the sealing material at the stopper rod hole to prevent the sealing material from being blown away and causing fire, thereby preventing the shutter device and the stopper rod connecting rod from being damaged by high temperature.

[0031] It is worth noting that when the fitting sides 11 of the two sealing plates 1 are fitted together, the openings 12 of the two sealing plates 1 can be butted together to form a through-hole, the shape of which matches the cross-sectional shape of the stopper rod, so that the through-hole can accommodate the stopper rod and the sealing plate body will not restrict the movement of the stopper rod, thereby not affecting the normal operation of the stopper rod.

[0032] In some embodiments, the shape of the perforation matches the shape of the stopper rod hole, so that the sealing plate body can better press the sealing material.

[0033] In some embodiments, the blocking plate 1 is a "U"-shaped structure, and the fitting sides 11 of the two blocking plates 1 are butt-jointed to form an elliptical blocking plate body, wherein the plane where the fitting sides 11 of the blocking plates 1 are located is parallel to the long axis of the blocking plate body, see Figure 1 and Figure 2 .

[0034] In some embodiments, the blocking plate 1 is a "U"-shaped structure, and the fitting sides 11 of the two blocking plates 1 are butt-jointed to form an elliptical blocking plate body, wherein the plane where the fitting sides 11 of the blocking plates 1 are located is perpendicular to the long axis of the blocking plate body, see Figure 3 .

[0035] In some embodiments, the blocking plate 1 is a "J"-shaped structure, and the contact sides 11 of the two blocking plates 1 are butt-jointed to form an elliptical blocking plate body, wherein the plane where the contact sides 11 of the blocking plate 1 are located and the long axis of the blocking plate body have an angle α greater than 0° and less than 90°, see Figure 3 , Figure 3 The included angle α between the fitting side 11 of the sealing plate 1 shown in FIG. 1 and the long axis of the sealing plate body is equal to 45°.

[0036] The sealing plate 1 of the above-mentioned structure is simple in structure, and the sealing plate for preventing the rod hole of the tundish from escaping fire (the structure of the spliced ​​sealing plates 1 is exactly the same) can be produced by one mold, so as to reduce the production cost of the sealing plate for preventing the rod hole of the tundish from escaping fire, and the smooth outer wall ensures that the sealing plate 1 will not cause damage to equipment or personnel during handling and transportation, so as to improve the safety of the sealing plate for preventing the rod hole of the tundish from escaping fire during handling and transportation.

[0037] In some embodiments, the two opposite planes of the blocking plate 1 are the blocking surface and the back surface, respectively, wherein a handle 2 is provided on the back surface of the blocking plate 1;

[0038] When using the sealing plate for preventing fire from escaping from the plugging rod hole of the tundish, the worker can face the sealing surface of the sealing plate 1 toward the plugging rod hole, and the sealing surface fits with the plugging material to achieve extrusion of the plugging material;

[0039] The handle 2 provided on the back of the blocking plate 1 is convenient for grasping, hanging or clamping, making it easier to take or put the blocking plate 1. Preferably, the length direction of the handle 2 is parallel to the plane where the contact side 11 of the blocking plate 1 is located, making it easier to fix the handle 2 of the blocking plate 1 (grab, hang or clamp).

[0040] It should be noted that the above-mentioned grasping, hanging or clamping of the handle 2 refers to three different methods of taking and placing. Among them, grasping means that the staff grasps the handle 2 with their palms to place the sealing plate 1 in the stopper rod hole or remove it from the stopper rod hole. This method requires the staff to take protective measures on their palms to prevent the heat from being transferred to the handle 2 and causing burns to the staff when grasping the handle 2.

[0041] Hanging means using the hook on the crane to cooperate with the handle 2 to hang the blocking plate 1 to the stopper hole, or to hang it out from the stopper hole;

[0042] Clamping refers to using a clamp to clamp the handle 2 and send the sealing plate 1 to the stopper rod hole, or take it out from the stopper rod hole; all three fixing methods can fix the handle 2 and take / place the sealing plate 1, making the taking / placement of the sealing plate 1 more convenient.

[0043] Preferably, the handle 2 is fixed to the blocking plate 1 by welding, so that the connection between the handle 1 and the blocking plate 1 is more stable, thereby avoiding the handle 2 and the blocking plate 1 from being separated during use.

[0044] In some embodiments, the sealing plate 1 is made of a fire-resistant material or a heat-resistant material to prevent the sealing plate 1 from being damaged by high temperature.

[0045] It should be noted that the above-mentioned refractory material or heat-resistant material can be an inorganic compound material or a high molecular polymer material.

[0046] Of course, the above-mentioned sealing plate 1 can also be made of metal materials, such as metal iron. The sealing plate 1 made of metal iron is an iron plate. The sealing plate 1 made of metal iron has sufficient weight to press the sealing material on the stopper rod hole to prevent the sealing material from being blown away.

[0047] Through the above embodiments, the present application has the following beneficial effects or advantages:

[0048] 1) The sealing plate body in the sealing plate for preventing the tundish stopper rod hole from escaping fire can squeeze the sealing material to seal the stopper rod hole to prevent the sealing material from being blown away and causing escaping fire. The perforations on the sealing plate body can accommodate the stopper rod without restricting the movement of the stopper rod and will not affect the normal operation of the stopper rod, thereby achieving stable pouring operation of the tundish and precise flow control during the pouring process, creating favorable conditions for the subsequent normal pouring production of the tundish.

[0049] 2) The back of the sealing plate 1 in the sealing plate for preventing the tundish plug rod hole from escaping is provided with a handle 2 for easy grasping, hanging or clamping. The setting of the handle 2 facilitates the taking / placing of the sealing plate 1, making the taking / placing of the sealing plate 1 more convenient.

[0050] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present application.

[0051] Obviously, those skilled in the art may make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

Claims

1. A sealing plate for preventing fire from tundish plug rod hole, characterized in that: It includes two blocking plates (1); One of the side edges of the blocking plate (1) is a fitting side (11), and the fitting side (11) is provided with an arc-shaped opening (12); wherein, The mating sides (11) of the two sealing plates (1) are butted together to form a sealing plate body, and the sealing plate body can compact the sealing material at the stopper rod hole. The openings (12) on the two sealing plates (1) are butted together to form a through hole for the stopper rod to pass through, and the shape of the through hole matches the cross-sectional shape of the stopper rod.

2. The sealing plate for preventing fire from tundish plug rod hole according to claim 1, characterized in that: The shape of the through hole matches the shape of the stopper rod hole.

3. The sealing plate for preventing fire from tundish plug rod hole according to claim 1, characterized in that: The shape of the sealing plate body is elliptical, and the plane where the fitting side (11) of the sealing plate (1) is located is parallel to the long axis of the sealing plate body.

4. The sealing plate for preventing fire from tundish plugger rod hole according to claim 1, characterized in that: The shape of the sealing plate body is elliptical, and the plane where the fitting side (11) of the sealing plate (1) is located is perpendicular to the long axis of the sealing plate body.

5. The sealing plate for preventing fire from tundish plugger rod hole according to claim 1, characterized in that: The shape of the sealing plate body is elliptical, and the plane where the fitting side (11) of the sealing plate (1) is located and the long axis of the sealing plate body have an angle α, and the angle α is greater than 0° and less than 90°.

6. The sealing plate for preventing fire from escaping from the tundish plugger rod hole according to any one of claims 1 to 5, characterized in that: The two opposite planes on the blocking plate (1) are respectively a blocking surface and a back surface, and a handle (2) is provided on the back surface.

7. The sealing plate for preventing fire from tundish plugger rod hole according to claim 6, characterized in that: The length direction of the handle (2) is parallel to the plane where the fitting side (11) of the blocking plate (1) is located.

8. The sealing plate for preventing fire from tundish plug rod hole according to claim 7, characterized in that: The handle (2) is fixedly connected to the sealing plate (1) by welding.

9. The sealing plate for preventing fire from tundish plug rod hole according to claim 1, characterized in that: The blocking plate (1) is made of a refractory material or a heat-resistant material.

10. The sealing plate for preventing fire from tundish plugger rod hole according to claim 1, characterized in that: The blocking plate (1) is an iron plate.

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