An easily adjustable argon protection device for steelmaking and pouring

Abstract

The utility model discloses an easily adjustable steelmaking pouring argon protection device, comprising a pouring mold and an annular tube, wherein a connecting tube is installed on the top of the annular tube, a plurality of evenly distributed telescopic tubes are connected to the bottom of the annular tube, a vertical tube is installed on the bottom of the telescopic tube, a nozzle is installed on the vertical tube, an adjusting structure is provided on the annular tube and the vertical tube, and two connecting structures are provided on the pouring mold and the annular tube, wherein the adjusting structure comprises an L-shaped plate, the L-shaped plate is installed on the vertical tube, a threaded rod is threadedly installed on the L-shaped plate, and a limiting block is rotatably installed at the bottom of the threaded rod; the utility model, through the setting of the adjusting structure, by rotating the threaded rod, the rotation of the threaded rod drives the L-shaped plate to slide left and right, and the sliding of the L-shaped plate drives the vertical tube to slide, thereby driving the vertical tube to slide to a position adapted to the size of the pouring mold, avoiding affecting the effect of argon protection, thereby enabling the vertical tube to be adjusted, applicable to pouring molds of different sizes, and improving flexibility in use.

Description

Technical Field

[0001] The utility model relates to the technical field of steelmaking protective pouring, in particular to a conveniently adjustable steelmaking pouring argon gas protective device. Background Art

[0002] Protective pouring refers to an important technical measure to protect the molten steel exposed to the air during the continuous casting and ironmaking process to avoid secondary oxidation of the molten steel by the air. The emergence of protective pouring technology is one of the signs of the increasingly perfect development of continuous casting technology. The use of protective pouring technology is an important measure to improve the quality of castings. The commonly used protective pouring method is to use argon protection. A ring tube with dense air pipes is placed around the pouring gate of the casting mold. When pouring, argon is introduced into the tube, and argon is sprayed from the nozzle to form an argon protective barrier around the injection flow, thereby preventing the molten steel poured into the mold cavity from contacting with the air during pouring.

[0003] When the existing argon protection device is in use, the gas outlet vertical pipe at the bottom of the annular tube is fixedly arranged, so it can only be used for casting molds of fixed size. For example, the patent with announcement number CN216176608U discloses an argon protection device for steelmaking casting, in which multiple vertical pipes connected to the bottom of the annular tube are fixedly arranged and cannot be adjusted according to the size of the casting mold. If the casting mold is small, the vertical pipe cannot be placed in the mold mouth. If the casting mold is large, the gap between the vertical pipe and the inner wall of the mold is large when it is placed inside, reducing the effect of argon protection.

[0004] Therefore, an argon protection device for steelmaking pouring which is convenient to adjust is proposed. Utility Model Content

[0005] The utility model aims to provide a conveniently adjustable steelmaking pouring argon protection device to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical solutions: a conveniently adjustable steelmaking pouring argon protection device, comprising a pouring mold and an annular tube, a connecting tube is installed on the top of the annular tube, a plurality of evenly distributed telescopic tubes are connected to the bottom of the annular tube, a vertical tube is installed at the bottom of the telescopic tube, a nozzle is installed on the vertical tube, an adjustment structure is provided on the annular tube and the vertical tube, and two connecting structures are provided on the pouring mold and the annular tube;

[0007] The adjustment structure comprises an L-shaped plate, which is mounted on a vertical pipe, a threaded rod is threadedly mounted on the L-shaped plate, a limit block is rotatably mounted on the bottom of the threaded rod, and the limit block is mounted on the annular pipe.

[0008] Preferably, the connection structure includes a fixed column, which is mounted on the annular tube, a sliding rod is slidably mounted on the fixed column, a connecting plate is mounted on the casting mold, and the sliding rod and the connecting plate are connected by bolts.

[0009] Preferably, an insertion rod is slidably mounted on the fixed column, a plurality of insertion grooves are provided on the sliding rod, and the insertion rod is inserted into the insertion grooves.

[0010] Preferably, a retaining spring is sleeved on the insertion rod, one end of the retaining spring is installed on the insertion rod, and the other end of the retaining spring is installed on the fixing column.

[0011] Preferably, two positioning rods are slidably mounted on the L-shaped plate, and the positioning rods are mounted on the limit blocks.

[0012] Preferably, a retaining groove is provided on the limit block, and a rotating shaft is installed at the bottom of the threaded rod, and the rotating shaft is rotatably installed in the retaining groove.

[0013] Preferably, a positioning groove is provided on the fixing column, and the sliding rod is slidably installed in the positioning groove.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) The utility model, through the setting of the adjustment structure, by rotating the threaded rod, the rotation of the threaded rod drives the L-shaped plate to slide left and right, and the sliding of the L-shaped plate drives the vertical pipe to slide, so that the vertical pipe can be driven to slide to a position suitable for the size of the casting mold, avoiding affecting the effect of argon protection. In this way, the vertical pipe can be adjusted to be suitable for casting molds of different specifications and sizes, thereby improving flexibility during use.

[0016] (2) The utility model, through the setting of the connection structure, can lift the insertion rod upward to remove the restriction on the sliding rod. At this time, the sliding rod can be slid on the fixed column so that the bottom of the sliding rod can be aligned with the connecting plate and fixed together by bolts. Then, the insertion rod is inserted into the sliding rod to fix the sliding rod, thereby improving the stability during use. In this way, the annular tube can be installed on casting molds of different sizes for use, and it can also be easily disassembled and removed, which is convenient for cleaning and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the regulating structure of the utility model;

[0019] Figure 3 It is a cross-sectional view of the connection between the fixed column and the sliding rod of the utility model;

[0020] Figure 4 It is a cross-sectional view of the connection between the threaded rod and the limit block of the utility model;

[0021] In the figure: 1. casting mold; 2. annular tube; 3. connecting tube; 4. telescopic tube; 5. vertical tube; 6. nozzle; 7. L-shaped plate; 71. threaded rod; 72. limit block; 73. positioning rod; 74. rotating shaft; 75. retaining groove; 8. fixing column; 81. sliding rod; 82. connecting plate; 83. bolt; 84. plug rod; 85. retaining spring; 86. plug-in groove; 87. positioning groove. DETAILED DESCRIPTION

[0022] 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.

[0023] Example: See Figure 1-4 The utility model provides a technical solution: a conveniently adjustable steelmaking pouring argon protection device, comprising a pouring mold 1 and an annular tube 2, a connecting pipe 3 is installed on the top of the annular tube 2, a plurality of evenly distributed telescopic tubes 4 are connected to the bottom of the annular tube 2, a vertical tube 5 is installed at the bottom of the telescopic tube 4, a nozzle 6 is installed on the vertical tube 5, an adjusting structure is provided on the annular tube 2 and the vertical tube 5, and two connecting structures are provided on the pouring mold 1 and the annular tube 2; the adjusting structure comprises an L-shaped plate 7, the L-shaped plate 7 is installed on the vertical tube 5, a threaded rod 71 is threadedly installed on the L-shaped plate 7, a limit block 72 is rotatably installed at the bottom of the threaded rod 71, the limit block 72 is installed on the annular tube 2, two positioning rods 73 are slidably installed on the L-shaped plate 7, and the positioning rod 73 is installed on the limit block 72, wherein the other end of the connecting pipe 3 is connected to the external argon The gas supply device is connected, and the threaded rod 71 is rotated. Under the limiting action of the positioning rod 73 and the characteristic that the telescopic tube 4 can be extended and retracted at will, the threaded rod 71 rotates to drive the L-shaped plate 7 to slide left and right, and the sliding of the L-shaped plate 7 drives the vertical tube 5 to slide until it slides to a position suitable for the size of the casting mold 1 to avoid affecting the effect of argon protection. In this way, the vertical tube 5 can be adjusted and is suitable for casting molds 1 of different specifications and sizes, thereby improving the flexibility during use. The telescopic tube 4 is made of high-temperature resistant material; a retaining groove 75 is provided on the limit block 72, and a rotating shaft 74 is installed at the bottom of the threaded rod 71. The rotating shaft 74 is rotatably installed in the retaining groove 75. The rotating shaft 74 and the retaining groove 75 can limit the rotation of the threaded rod 71 in situ, thereby being able to drive the L-shaped plate 7 to slide left and right to adjust its position when the threaded rod 71 rotates.

[0024] Further, the connecting structure includes a fixed column 8, which is installed on the annular tube 2, a sliding rod 81 is slidably installed on the fixed column 8, a connecting plate 82 is installed on the casting mold 1, the sliding rod 81 and the connecting plate 82 are connected by bolts 83, a plug rod 84 is slidably installed on the fixed column 8, a plurality of plug slots 86 are provided on the sliding rod 81, the plug rod 84 is plugged into the plug slot 86, a retaining spring 85 is sleeved on the plug rod 84, one end of the retaining spring 85 is installed on the plug rod 84, and the other end of the retaining spring 85 is installed on the fixed column 8, a positioning groove 87 is provided on the fixed column 8, and the sliding rod 81 is slidably installed on the After adjusting the position of the vertical pipe 5 in the positioning groove 87, the insertion rod 84 is lifted up and stretched to the retaining spring 85. At this time, the sliding rod 81 can be slid on the fixing column 8 so that the bottom of the sliding rod 81 can be aligned with the connecting plate 82 and connected and fixed together with the bolt 83. Then the insertion rod 84 is loosened, and the retaining spring 85 rebounds and drives the insertion rod 84 to be inserted into the insertion groove 86 to fix the sliding rod 81 and improve the stability during use. In this way, the annular tube 2 can be installed on casting molds 1 of different sizes for use, and it can also be easily disassembled and removed for easy cleaning and maintenance.

[0025] The working principle is as follows: when the annular tube 2 is installed on the casting mold 1, the threaded rod 71 is first rotated according to the size of the casting mold 1. Under the limiting action of the positioning rod 73, the threaded rod 71 rotates to drive the L-shaped plate 7 to slide left and right, and the sliding of the L-shaped plate 7 drives the vertical tube 5 to slide until it slides to a position suitable for the size of the casting mold 1 to avoid affecting the effect of argon protection. In this way, the vertical tube 5 can be adjusted to be suitable for casting molds 1 of different sizes, thereby improving the flexibility during use. After adjusting the position of the vertical tube 5, the insertion rod 84 is lifted up and stretched to the retaining spring 85. At this time, the sliding rod 81 can be slid on the fixing column 8, so that the bottom of the sliding rod 81 can be aligned with the connecting plate 82 and connected and fixed together with the bolt 83. Then, the insertion rod 84 is loosened, and the retaining spring 85 rebounds to drive the insertion rod 84 to be inserted into the insertion groove 86 to fix the sliding rod 81, thereby improving the stability during use. In this way, the annular tube 2 can be installed on casting molds 1 of different sizes for use.

[0026] 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. An easily adjustable steelmaking pouring argon protection device, characterized in that: The invention comprises a casting mold (1) and an annular tube (2), wherein a connecting tube (3) is installed on the top of the annular tube (2), a plurality of evenly distributed telescopic tubes (4) are connected to the bottom of the annular tube (2), a vertical tube (5) is installed on the bottom of the telescopic tube (4), a nozzle (6) is installed on the vertical tube (5), an adjusting structure is provided on the annular tube (2) and the vertical tube (5), and two connecting structures are provided on the casting mold (1) and the annular tube (2); The adjustment structure comprises an L-shaped plate (7), the L-shaped plate (7) being mounted on the vertical pipe (5), a threaded rod (71) being threadedly mounted on the L-shaped plate (7), a limit block (72) being rotatably mounted at the bottom of the threaded rod (71), and the limit block (72) being mounted on the annular pipe (2).

2. The conveniently adjustable steelmaking pouring argon protection device according to claim 1 is characterized in that: The connection structure comprises a fixed column (8), the fixed column (8) is mounted on the annular tube (2), a sliding rod (81) is slidably mounted on the fixed column (8), a connecting plate (82) is mounted on the casting mold (1), and the sliding rod (81) and the connecting plate (82) are connected by bolts (83).

3. The conveniently adjustable steelmaking pouring argon protection device according to claim 2 is characterized in that: The fixed column (8) is slidably mounted with an insertion rod (84), and the sliding rod (81) is provided with a plurality of insertion grooves (86), and the insertion rod (84) is inserted into the insertion grooves (86).

4. The conveniently adjustable steelmaking pouring argon protection device according to claim 3 is characterized in that: A retaining spring (85) is sleeved on the insertion rod (84), one end of the retaining spring (85) is mounted on the insertion rod (84), and the other end of the retaining spring (85) is mounted on the fixing column (8).

5. The conveniently adjustable steelmaking pouring argon protection device according to claim 1 is characterized in that: Two positioning rods (73) are slidably mounted on the L-shaped plate (7), and the positioning rods (73) are mounted on the limiting blocks (72).

6. The conveniently adjustable steelmaking pouring argon protection device according to claim 1 is characterized in that: The limiting block (72) is provided with a retaining groove (75), and a rotating shaft (74) is installed at the bottom of the threaded rod (71), and the rotating shaft (74) is rotatably installed in the retaining groove (75).

7. The conveniently adjustable steelmaking pouring argon protection device according to claim 2 is characterized in that: The fixing column (8) is provided with a positioning groove (87), and the sliding rod (81) is slidably installed in the positioning groove (87).

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