Water gap for preventing steel slag in tundish from entering

Abstract

The utility model discloses a water gap for preventing steel slag in a tundish from entering. The water gap comprises a base working layer and a water feeding fixing cylinder. A supporting seat is connected to the top of the base working layer, a positioning box is connected to one side of the base working layer, a stand column is connected to the position, located on one side of the supporting seat, of one side of the positioning box, and a rod plug is connected to the bottom of the stand column; the water feeding fixing barrel is lengthened by 30 mm on the original basis, the upper portion of the water feeding fixing barrel in the tundish is 30 mm higher than the working layer of the bottom base in the tundish making process, steel slag cannot be sucked into the water gap in the downward air draft process due to the fact that the water gap wrist is 30 mm higher, the water gap is not prone to falling in the baking process, and the water gap is not prone to falling off. Suction force of air draft and heat flow of upper baking cannot suck the steel slag into the water feeding fixing barrel, the water feeding fixing barrel blockage accident cannot be caused, and the falling steel slag cannot be sucked into the water feeding fixing barrel to cause blockage due to the fact that the water opening wrist portion on the side edge of the water feeding fixing barrel is higher than a base working layer.

Description

Technical Field

[0001] The utility model relates to the technical field of steel slag in a tundish, in particular to a method for preventing steel slag in the tundish from entering a water inlet. Background Art

[0002] The tundish is a refractory container used in short-process steelmaking, which plays a key role in the steelmaking production process. Specifically, the tundish first receives the molten steel poured from the ladle, and then distributes it to each crystallizer through the tundish water inlet. During the transportation and baking process of the tundish, slag is easy to enter the tundish upper water inlet, causing blockage of the water inlet and affecting normal pouring, or causing the stopper rod to be loose during pouring and self-flowing pouring failure and other serious consequences.

[0003] In the prior art, the temperature of the tundish during the baking process reaches above 1200°C. The high temperature easily causes oxidation of the tundish cover or the residue on the tundish cover to fall into the tundish. The steel slag that falls into the tundish enters the inside of the nozzle under the operation of the baking heat flow and the suction of the lower exhaust of the tundish. The continuous casting tundish adopts the lower exhaust method to heat the upper nozzle and the immersion nozzle during the baking process; however, since the original bottom of the tundish is parallel to the upper part of the nozzle, and the nozzle wrist is concave, it is easy to suck the steel slag that falls into the tundish during the baking process into the nozzle, and then the steel slag will be sucked into the nozzle and block the nozzle. In view of this, we have introduced a method to prevent the steel slag in the tundish from entering the nozzle. Utility Model Content

[0004] The utility model aims to provide a device for preventing steel slag in a tundish from entering a water inlet, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a method for preventing steel slag in a tundish from entering a water inlet, comprising: a base working layer and a water supply fixing cylinder;

[0006] A support seat is connected to the top of the base working layer, and the support seat and the base working layer are fixedly arranged. A positioning box is connected to one side of the base working layer, and one side of the positioning box is located on one side of the support seat and is connected to a column. A rod plug is connected to the bottom of the column, and the rod plug and the column are integrally formed. The water supply fixing cylinder is connected to the bottom side of the base working layer, and the rod plug penetrates the water supply fixing cylinder. An inclined portion is arranged on the surface of the water supply fixing cylinder, and the inclined portion and the water supply fixing cylinder are integrally formed. A water outlet wrist is arranged on the side of the water supply fixing cylinder, and the water outlet wrist is 30 mm higher than the base working layer.

[0007] Preferably, inclined plates are connected to both sides of the bottom of the water supply fixing cylinder, and the inclined plates and the water supply fixing cylinder are fixedly arranged. A positioning groove for inserting the rod plug is opened inside the water supply fixing cylinder, and the positioning groove and the water supply fixing cylinder are integrally formed.

[0008] Preferably, a vertical plate A is provided at the inner top of the base working layer, and the vertical plate A is fixed to the base working layer. A vertical plate B is provided at the inner bottom of the base working layer, and the vertical plate B is fixed to the base working layer.

[0009] Preferably, a sleeve is connected to the other side of the bottom of the base working layer, and the sleeve is convenient for fixing on the surface of the base working layer.

[0010] Preferably, one side of the positioning box is connected to a water inlet.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model lengthens the water supply fixing cylinder by 30mm on the original basis, and during the ladle making process, the upper part of the water supply fixing cylinder in the middle ladle is 30mm higher than the bottom base working layer. Since the water nozzle wrist is 30mm higher, the steel slag will not be sucked into the water nozzle during the downward exhaust process, so that the water nozzle is lowered during the baking process, and the suction force of the exhaust and the heat flow of the upper baking will not draw the steel slag into the interior of the water supply fixing cylinder, and will not cause the water supply fixing cylinder to be blocked. The water nozzle wrist on the side of the water supply fixing cylinder is higher than the base working layer, so that the fallen steel slag will not be sucked into the interior of the water supply fixing cylinder and cause blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the structure of the utility model when the base working layer, the water supply fixing cylinder and the rod plug are connected;

[0014] Figure 3 It is a schematic diagram of the structure of the utility model when the working layer of the base and the rod plug are disassembled.

[0015] In the figure: 1. working layer of base; 2. sleeve; 3. vertical plate A; 4. vertical plate B; 5. support seat; 6. positioning box; 7. water inlet; 8. column; 9. rod plug; 10. inclined plate; 11. water supply fixing cylinder; 12. inclined part; 13. water inlet wrist; 14. positioning groove. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1-3 The utility model provides a technical solution: a method for preventing slag in the tundish from entering the water inlet, comprising: a base working layer 1 and a water supply fixing cylinder 11, the top of the base working layer 1 is connected to a support seat 5, one side of the base working layer 1 is connected to a positioning box 6, one side of the positioning box 6 is located at a side of the support seat 5 and is connected to a column 8, the bottom of the column 8 is connected to a rod plug 9, the water supply fixing cylinder 11 is connected to the bottom side of the base working layer 1, the rod plug 9 penetrates the water supply fixing cylinder 11, the surface of the water supply fixing cylinder 11 is provided with an inclined portion 12, the side of the water supply fixing cylinder 11 is provided with a water inlet wrist 13, and the water inlet wrist 13 is 130mm higher than the base working layer.

[0018] The bottom sides of the water supply fixing cylinder 11 are connected with inclined plates 10, and the inclined plates 10 and the water supply fixing cylinder 11 are fixedly arranged. A positioning groove 14 for inserting the rod plug 9 is opened inside the water supply fixing cylinder 11, and the positioning groove 14 and the water supply fixing cylinder 11 are integrally formed.

[0019] A vertical plate A3 is disposed on the inner top of the base working layer 1 , and the vertical plate A3 is fixedly disposed between the base working layer 1 . A vertical plate B4 is disposed on the inner bottom of the base working layer 1 , and the vertical plate B4 is fixedly disposed between the base working layer 1 .

[0020] The other side of the bottom of the base working layer 1 is connected with a sleeve 2 , and the sleeve 2 is convenient for being fixed on the surface of the base working layer 1 .

[0021] One side of the positioning box 6 is connected with a water inlet 7 .

[0022] Specifically, when in use, the water supply fixed cylinder 11 is lengthened by 30mm on the original basis. During the process of making the ladle, the upper part of the water supply fixed cylinder 11 in the intermediate ladle is 130mm higher than the bottom base working layer. The bottom of the original base working layer 1 is parallel to the upper part of the water supply fixed cylinder 11, and the water inlet wrist 13 is concave, which can easily suck the steel slag that falls into the intermediate ladle during the baking process into the water inlet. Since the water inlet wrist 13 is 30mm higher, the steel slag will not be sucked into the water inlet during the lower exhaust process, so that when the water inlet is lowered during the baking process, the suction force of the exhaust and the heat flow of the upper baking will not draw the steel slag into the interior of the water supply fixed cylinder 11, and will not cause a blockage accident of the water supply fixed cylinder 11. The water inlet wrist 13 on the side of the water supply fixed cylinder 11 is higher than the base working layer 1, so that the fallen steel slag will not be sucked into the interior of the water supply fixed cylinder 11 and block it.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for preventing slag in a tundish from entering a nozzle, comprising: A base working layer (1) and a water supply fixing cylinder (11), characterized in that the top of the base working layer (1) is connected to a support seat (5), one side of the base working layer (1) is connected to a positioning box (6), one side of the positioning box (6) is located on one side of the support seat (5) and is connected to a column (8), the bottom of the column (8) is connected to a rod plug (9), the water supply fixing cylinder (11) is connected to the bottom side of the base working layer (1), the rod plug (9) penetrates the water supply fixing cylinder (11), the surface of the water supply fixing cylinder (11) is provided with an inclined portion (12), and the side of the water supply fixing cylinder (11) is provided with a water inlet wrist (13), and the water inlet wrist (13) is 30 mm higher than the base working layer (1).

2. The method for preventing slag in the tundish from entering the nozzle according to claim 1, characterized in that: Inclined plates (10) are connected to both sides of the bottom of the water supply fixing cylinder (11), and a positioning groove (14) for inserting a rod plug (9) is provided inside the water supply fixing cylinder (11).

3. The method for preventing slag in the tundish from entering the nozzle according to claim 1, characterized in that: A vertical plate A (3) is provided at the inner top of the base working layer (1), and a vertical plate B (4) is provided at the inner bottom of the base working layer (1).

4. The method for preventing slag in the tundish from entering the nozzle according to claim 1, characterized in that: The other side of the bottom of the base working layer (1) is connected to a sleeve (2).

5. The method for preventing slag in the tundish from entering the nozzle according to claim 1, characterized in that: One side of the positioning box (6) is connected to a water inlet (7).

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