Cast-on flow blocking device for continuous casting tundish

Abstract

The utility model relates to the technical field of continuous casting, and discloses a continuous casting tundish casting flow blocking device which comprises a flow blocking body, a plurality of sets of supporting cross beams are fixedly connected to the surface of the flow blocking body, a buffer coating is fixedly connected to the surface of the flow blocking body, an anti-corrosion coating is fixedly connected to the surface of the buffer coating, and the anti-corrosion coating is fixedly connected to the surface of the flow blocking body. The surface of the anti-corrosion coating is fixedly connected with a protection assembly. According to the flow blocking device for casting of the continuous casting tundish, through the arrangement of the flow blocking body, when the continuous casting tundish is maintained, the flow blocking body and the blocking dam are installed and fixed at the same time, gaps are filled with spraying paint, the flow blocking body is tightly attached to the side wall face, close to an impact area, of the blocking dam, and in the initial stage of casting of continuous casting, molten steel with high impurity content is blocked in the impact area; and molten steel pollution in a pouring area is avoided, the quality of the continuous casting first blank is effectively improved, the flow blocking body is free of pollution to molten steel, the flow blocking body is completely molten after pouring is finished, and pouring production is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of continuous casting, in particular to a continuous casting tundish opening and pouring flow blocking device. Background Art

[0002] The tundish is used to receive molten steel from the ladle and inject it into the crystallizer. It is an important device in the continuous casting process. The tundish is usually equipped with flow stabilizers, retaining walls and dams to adjust and improve the flow field of the molten steel in the tundish and promote the floating of inclusions. Usually, the dam has two or more injection holes near the bottom of the lining of the tundish so that the remaining molten steel in the tundish can be poured out as much as possible when the continuous casting is stopped. However, in the initial stage of continuous casting, the peelings of the refractory material that are first washed away by the molten steel and the foreign matter that fell into the tundish during maintenance and storage will flow directly to the stopper rod through the injection holes of the dam along with the steel flow at the time of casting, affecting the quality of the continuous casting head billet.

[0003] The existing continuous casting tundish opening blocking device is not convenient for avoiding molten steel pollution in the pouring area during actual use, which affects the quality of the continuous casting head billet.

[0004] After searching the existing patent application for continuous casting tundish slag retaining wall (publication number: CN2483120Y), the present utility model discloses a continuous casting tundish slag retaining wall with steel tapping holes of varying diameters, positions, left and right inclination angles α and α', and vertical inclination angles β and β'. This retaining wall is particularly suitable for continuous casting operations with six streams and six machine streams, and with a tundish pouring hole spacing of 1200 mm. It ensures that the molten steel remains in the tundish for 10 minutes or longer, facilitating the floating of inclusions in the molten steel. Because the retaining wall is strategically positioned within the tundish, dead zones within the tundish are eliminated, allowing simultaneous pouring of all six streams in the first heat with a 100% success rate and a temperature difference of 5°C between each stream zone.

[0005] Although the above patent eliminates the dead corner of molten steel in the intermediate tank, the first furnace can achieve six streams to be poured simultaneously, the pouring success rate can reach 100%, and the temperature difference of molten steel in each stream area is within 5°C, but it is not convenient to locate and install the flow blocker.

[0006] Therefore, it is necessary to invent a continuous casting tundish opening and pouring blocking device to solve the above problems. Utility Model Content

[0007] (1) Technical problems solved

[0008] The technical problem solved by the utility model is to provide a continuous casting tundish opening and pouring flow blocking device which is highly practical, can be simply operated and has a relatively simple structure, and solves the problem raised in the above background technology that it is inconvenient to avoid molten steel pollution in the casting area, which affects the quality of the continuous casting head billet.

[0009] (2) Technical solution

[0010] To achieve the above objectives, the present invention is implemented through the following technical solutions: a continuous casting tundish pouring flow blocking device, including a flow blocking body, the surface of the flow blocking body is fixedly connected to several groups of supporting beams, the surface of the flow blocking body is fixedly connected to a buffer coating, the surface of the buffer coating is fixedly connected to an anti-corrosion coating, the surface of the anti-corrosion coating is fixedly connected to a protective component, the interior of the flow blocking body is sleeved with several groups of reinforcing ribs, the back of the flow blocking body is fixedly connected with four groups of plug-in components, the surface of the plug-in component is clamped with a fixing seat, the surface of the fixing seat is sleeved with a dam, and the back of the flow blocking body is fixedly connected with a spray coating.

[0011] As a further solution of the present invention, the protective component includes an anti-oxidation coating fixedly connected to the surface of the anti-corrosion coating. The surface of the anti-oxidation coating is fixedly connected with the protective coating, and the protective coating facilitates protection of the surface of the baffle body.

[0012] As a further solution of the present invention, the plug-in assembly includes a plug-in column fixedly connected to the back of the flow-blocking body, and both sides of the plug-in column are fixedly connected with a retaining spring, and one side of the retaining spring is fixedly connected with a telescopic spring, which facilitates pushing the retaining spring to push the card block into the card slot.

[0013] As a further solution of the present invention, two groups of clips are fixedly connected to the back of the baffle body, and positioning grooves adapted to the clips are provided on the surface of the dam, which facilitate the insertion and positioning of the clips.

[0014] As a further solution of the present invention, the material of the buffer coating is foam cotton material, and the material of the anti-corrosion coating is polyurethane material. The anti-corrosion coating is convenient for preventing corrosion on the surface of the baffle body.

[0015] As a further solution of the present invention, the material of the anti-oxidation coating is epoxy paint material, and the material of the protective coating is galvanized coating material. The anti-oxidation coating is convenient for reducing oxidation of the baffle body.

[0016] As a further solution of the present invention, a clamping block is fixedly connected to one side of the clamping spring, and a cavity groove adapted to the clamping spring is provided on the surface of the plug post, and the cavity groove facilitates the swinging of the clamping spring.

[0017] As a further solution of the present invention, two groups of injection holes are provided on the surface of the dam, and a card slot adapted to the card block is provided inside the fixing seat, which facilitates the positioning of the card block and facilitates positioning and installation.

[0018] As a further solution of the present invention, the baffle body is made of steel plate, and has the same structural dimensions as the dam. The baffle body is convenient for blocking molten steel with a high impurity content.

[0019] As a further solution of the present invention, the upper edge height of the baffle body can be slightly higher or slightly lower than the dam, and the dam facilitates the control of the flow of molten steel.

[0020] (3) Beneficial effects

[0021] The utility model provides a continuous casting tundish opening and pouring flow blocking device, which has the following beneficial effects:

[0022] 1. The continuous casting tundish pouring baffle device, through the setting of the baffle body, is installed and fixed together with the dam during the maintenance of the continuous casting tundish, and the gap is filled with spray material so that the baffle body is close to the wall of the dam on the side close to the impact zone. In the initial stage of continuous casting, the molten steel with a high impurity content is blocked in the impact zone to avoid contamination of the molten steel in the casting zone, effectively improving the quality of the continuous casting head billet. The baffle body does not pollute the molten steel. After the pouring is completed, the baffle body is completely melted and has no effect on the casting production.

[0023] 2. The continuous casting tundish opening and pouring flow-blocking device is provided with a plug-in assembly and a clamping strip. When installing, the plug-in column on one side of the flow-blocking body is inserted into the fixed seat. The inner wall of the fixed seat squeezes the clamping spring. When it reaches the clamping slot position, the telescopic spring pushes the clamping block to be fixed. At the same time, the clamping strip is clamped into the positioning groove, and then the gap is filled with spray material, thereby achieving the effect of convenient positioning and installation of the flow-blocking body, reducing the workload of installation and positioning, and improving the stability of the continuous casting tundish opening and pouring flow-blocking device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the split structure of the utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the protective component of the utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the plug-in assembly of the utility model.

[0028] In the figure: 1. Flow-blocking body; 2. Support beam; 3. Buffer coating; 4. Anti-corrosion coating; 5. Protective component; 501. Anti-oxidation coating; 502. Protective coating; 6. Reinforcement rib; 7. Plug-in component; 701. Plug column; 702. Reed plate; 703. Telescopic spring; 8. Fixed seat; 9. Dam; 10. Spray material; 11. Card strip; 12. Card block. DETAILED DESCRIPTION

[0029] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] See also Figures 1 to 4 The utility model provides a technical solution: a continuous casting tundish opening and pouring flow blocking device, including a flow blocking body 1, a plurality of supporting beams 2 are fixedly connected to the surface of the flow blocking body 1, a buffer coating 3 is fixedly connected to the surface of the flow blocking body 1, an anti-corrosion coating 4 is fixedly connected to the surface of the buffer coating 3, a protective component 5 is fixedly connected to the surface of the anti-corrosion coating 4, a plurality of reinforcing ribs 6 are sleeved on the interior of the flow blocking body 1, and four groups of plug-in components 7 are fixedly connected to the back of the flow blocking body 1. Through the arrangement of the plug-in components 7 and the clamping strips 11, the effect of convenient positioning and installation of the flow blocking body 1 is achieved, the workload of installation and positioning is reduced, and the stability of the continuous casting tundish opening and pouring flow blocking device is improved. A fixing seat 8 is clamped on the surface of the plug-in component 7, a dam 9 is sleeved on the surface of the fixing seat 8, and a spray coating material 10 is fixedly connected to the back of the flow blocking body 1.

[0031] The protective component 5 includes an anti-oxidation coating 501 fixedly connected to the surface of the anti-corrosion coating 4. The surface of the anti-oxidation coating 501 is fixedly connected to a protective coating 502. The setting of the protective coating 502 plays a role in protecting the surface of the flow-blocking body 1.

[0032] The plug-in assembly 7 includes a plug post 701 fixedly connected to the back of the flow-blocking body 1, and a retaining spring 702 is fixedly connected to both sides of the plug post 701. A telescopic spring 703 is fixedly connected to one side of the retaining spring 702. Through the setting of the telescopic spring 703, the retaining spring 702 is pushed to push the card block 12 into the card slot.

[0033] Two groups of clamping strips 11 are fixedly connected to the back of the baffle body 1, and positioning grooves adapted to the clamping strips 11 are provided on the surface of the dam 9. The positioning grooves can be used to insert and limit the clamping strips 11.

[0034] The material of the buffer coating 3 is foam cotton material, and the material of the anti-corrosion coating 4 is polyurethane material. The setting of the anti-corrosion coating 4 plays a role in preventing corrosion of the surface of the baffle body 1.

[0035] The material of the anti-oxidation coating 501 is epoxy paint material, and the material of the protective coating 502 is galvanized coating material. The setting of the anti-oxidation coating 501 plays a role in reducing the oxidation of the baffle body 1.

[0036] One side of the spring piece 702 is fixedly connected to a clamping block 12 , and a cavity groove adapted to the spring piece 702 is provided on the surface of the plug post 701 . The setting of the cavity groove facilitates the shaking of the spring piece 702 .

[0037] Two groups of injection holes are provided on the surface of the dam 9, and a card slot adapted to the card block 12 is provided inside the fixing seat 8. The card slot serves to limit the card block 12 and facilitates positioning and installation.

[0038] The baffle body 1 is made of steel plate. The baffle body 1 has the same structural dimensions as the dam 9. Through the arrangement of the slots, it plays a role in blocking the molten steel with a high impurity content.

[0039] The height of the upper edge of the flow-blocking body 1 can be slightly higher or lower than the dam 9. Through the arrangement of the slots, the flow of molten steel can be controlled.

[0040] In the present invention, the working steps of the device are as follows:

[0041] The first step: when repairing the continuous casting tundish, the baffle body 1 and the dam 9 are installed and fixed at the same time, and the gap is filled with spray material 10 so that the baffle body 1 is close to the wall surface of the dam 9 near the impact area. In the initial stage of continuous casting, the molten steel with a high impurity content is blocked in the impact area, avoiding contamination of the molten steel in the casting area, effectively improving the quality of the continuous casting head billet, and the baffle body 1 does not pollute the molten steel. After the casting is completed, the baffle body 1 is completely melted, and there is no impact on the casting production;

[0042] The second step: During installation, insert the plug 701 on one side of the baffle body 1 into the fixing seat 8. The inner wall of the fixing seat 8 squeezes the spring sheet 702. When it reaches the slot position, the telescopic spring 703 pushes the block 12 to be fixed. At the same time, the card strip 11 is inserted into the positioning slot, and then the gap is filled with spray paint 10.

[0043] It should be noted that the device structure and drawings of the present invention mainly describe the principle of the present invention. In terms of the technology of the design principle, the settings of the device's power mechanism, power supply system, and control system are not fully described. However, those skilled in the art can clearly understand the details of its power mechanism, power supply system, and control system on the premise that they understand the principle of the above-mentioned utility model. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be implemented by simple programming by those skilled in the art.

[0044] The standard parts used can be purchased from the market and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the components known to technical personnel in this field, their structures and principles can be known to these technical personnel through technical manuals or through conventional experimental methods.

[0045] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A continuous casting tundish pouring flow blocking device, comprising a flow blocking body (1), characterized in that: The surface of the baffle body (1) is fixedly connected to a plurality of supporting beams (2), the surface of the baffle body (1) is fixedly connected to a buffer coating (3), the surface of the buffer coating (3) is fixedly connected to an anti-corrosion coating (4), the surface of the anti-corrosion coating (4) is fixedly connected to a protective component (5), the interior of the baffle body (1) is sleeved with a plurality of reinforcing ribs (6), the back of the baffle body (1) is fixedly connected to four groups of plug-in components (7), the surface of the plug-in components (7) is clamped with a fixing seat (8), the surface of the fixing seat (8) is sleeved with a dam (9), and the back of the baffle body (1) is fixedly connected to a spray coating (10).

2. The continuous casting tundish pouring flow blocking device according to claim 1, characterized in that: The protective component (5) comprises an anti-oxidation coating (501) fixedly connected to the surface of the anti-corrosion coating (4), and a protective coating (502) is fixedly connected to the surface of the anti-oxidation coating (501).

3. The continuous casting tundish pouring flow blocking device according to claim 1, characterized in that: The plug-in assembly (7) comprises an insertion post (701) fixedly connected to the back of the flow-blocking body (1), both sides of the insertion post (701) are fixedly connected to a spring clip (702), and one side of the spring clip (702) is fixedly connected to a telescopic spring (703).

4. The continuous casting tundish pouring flow blocking device according to claim 1, characterized in that: Two groups of clamping strips (11) are fixedly connected to the back of the flow blocking body (1), and positioning grooves adapted to the clamping strips (11) are provided on the surface of the dam (9).

5. The continuous casting tundish pouring flow blocking device according to claim 1, characterized in that: The material of the buffer coating (3) is foam cotton material, and the material of the anti-corrosion coating (4) is polyurethane material.

6. The continuous casting tundish pouring flow blocking device according to claim 2, characterized in that: The anti-oxidation coating (501) is made of epoxy paint, and the protective coating (502) is made of galvanized coating.

7. The continuous casting tundish pouring flow blocking device according to claim 3, characterized in that: A clamping block (12) is fixedly connected to one side of the clamping spring (702), and a cavity groove adapted to the clamping spring (702) is provided on the surface of the plug post (701).

8. The continuous casting tundish pouring flow blocking device according to claim 7, characterized in that: Two groups of injection holes are provided on the surface of the dam (9), and a clamping groove adapted to the clamping block (12) is provided inside the fixing seat (8).

9. The continuous casting tundish pouring flow blocking device according to claim 1, characterized in that: The material of the flow blocking body (1) is steel plate, and the structure and size of the flow blocking body (1) and the dam (9) are the same.

10. The continuous casting tundish pouring flow blocking device according to claim 1, characterized in that: The height of the upper edge of the flow blocking body (1) can be slightly higher or lower than the dam (9).

Images