A second cooling chamber spray pipe fixing frame

Abstract

The utility model relates to the technical field of fixing a spray pipe of a secondary cooling chamber, and specifically discloses a fixing frame for the spray pipe of a secondary cooling chamber, comprising a square frame, a spray mechanism is arranged in the middle of each side of the square frame, and the cross section of each side of the square frame is arranged in an L-shape; one side of the square frame is fixed to the bottom frame by bolts; and the bottom frame is arranged in an inverted concave shape as a whole. Compared with the prior art, the steel billet can pass through the middle of the square frame and is completely cooled by the spray mechanism arranged in the middle of each side of the square frame, thereby avoiding the external interference of the cooling of the steel billet and ensuring the uniform cooling of the steel billet.

Description

Technical Field

[0001] The utility model relates to the technical field of fixing a spray pipe of a secondary cooling chamber, and specifically discloses a fixing frame for the spray pipe of a secondary cooling chamber. Background Art

[0002] Secondary cooling of continuous casting refers to the forced uniform cooling of the ingot in the length interval from the crystallizer outlet to the straightening machine during the continuous casting steelmaking process. This interval is called the secondary cooling zone. This section is equipped with a spray system and a series of roller devices arranged in a straight line (vertical continuous casting machine) or an arc (arc continuous casting machine). The spray device of the secondary cooling section of the continuous casting machine in the steelmaking plant is mainly composed of a spray pipe, a nozzle, a square frame, a square frame bracket and a metal hose.

[0003] For example, the patent with announcement number CN209614167U discloses a square frame and a square frame bracket for fixing the spray pipe of the second cooling section of a continuous casting machine, including a square frame body and a bracket body used in conjunction with each other. The shape of the bracket body is consistent with the shape of the square frame body. The bracket body and the frame body are provided with countersunk bolt holes matching the stainless steel screws on three sides corresponding to the stainless steel screws. The square frame body and the bracket body are connected together by the cooperation of the stainless steel screws and the countersunk bolt holes.

[0004] In the above scheme, the frame body is arranged inside the nozzle, which results in uneven cooling of some areas when spraying the steel billet, affecting the quality of the steel billet. Furthermore, the nozzle on the above spray pipe is rigidly welded, which has processing errors and is prone to misalignment during long-term use. The distance between the nozzle and the steel billet cannot be adjusted in time, and the cooling of the steel billet cannot be guaranteed to be uniform, affecting the quality of the steel billet. Utility Model Content

[0005] In view of the above-mentioned deficiencies in the prior art, the utility model provides a second cooling chamber spray pipe fixing frame to solve the problem that the frame body is arranged inside the nozzle, resulting in uneven spray cooling in some areas when spraying the steel billet, thus affecting the quality of the steel billet.

[0006] To achieve the above purpose, the technical solution of the utility model is:

[0007] A second cooling chamber spray pipe fixing frame includes a square frame, a spray mechanism is arranged in the middle of each side of the square frame, and the cross section of each side of the square frame is arranged in an L shape; one side of the square frame is fixed to the base frame by bolts; the base frame is arranged in an inverted concave shape as a whole. The steel billet can pass through the middle of the square frame and is completely sprayed and cooled by the spray mechanism arranged in the middle of each side of the square frame, thereby avoiding the external interference of the cooling of the steel billet and ensuring the uniform cooling of the steel billet. The base frame arranged in the inverted concave shape ensures the smooth discharge of the spray water, avoids the temperature difference caused by the accumulation of the spray water on the base frame, and ensures the uniform cooling of the steel billet.

[0008] Preferably, a mounting plate is provided in the middle of each side of the frame, and the spray mechanism is provided on the mounting plate, so as to facilitate the disassembly and assembly of the spray mechanism.

[0009] Preferably, the spray mechanism includes an elbow; the elbow is arranged on the mounting plate through two nuts; one end of the elbow is used for external cooling water, and the other end is provided with a telescopic assembly; the telescopic assembly is connected to the spray head. The spray head can move under the drive of the telescopic assembly, so that the distance between the spray head and the steel billet can be adjusted conveniently to ensure uniform cooling of the steel billet.

[0010] Preferably, the telescopic assembly includes an end cap threadedly arranged at the end of the elbow; a through hole is arranged on the end cap; a moving tube is slidably arranged in the through hole; the lower end of the moving tube is arranged in the elbow, and the upper end is threadedly arranged with a nozzle. The moving tube can move axially, and the depth of the moving tube in the elbow is adjusted, so as to facilitate the adjustment of the distance between the nozzle and the billet.

[0011] Preferably, a sealing ring is provided on the outer wall of the lower part of the moving pipe to match the inner wall of the elbow, so as to increase the sealing performance between the moving pipe and the elbow and reduce the leakage of the spray water.

[0012] Preferably, the upper outer wall of the movable tube is connected to a fixing rod via a tube clamp; the fixing rod is fixed to the mounting plate via bolts.

[0013] Preferably, the fixing rod is provided with an elongated hole, and the bolt is threadedly arranged on the mounting plate through the elongated hole. The position of the fixing rod on the mounting plate is fixed by the bolt in the elongated hole, thereby fixing the depth of the moving pipe in the elbow and adjusting the distance between the nozzle and the steel billet.

[0014] The beneficial effects of the utility model are:

[0015] 1. The billet can pass through the middle of the frame and be completely cooled by the spray mechanism set in the middle of each side of the frame, avoiding the external interference of the billet cooling and ensuring the uniform cooling of the billet. The bottom frame set in the shape of an inverted concave character ensures the smooth discharge of the spray water, avoids the temperature difference caused by the accumulation of spray water on the bottom frame, and ensures the uniform cooling of the billet.

[0016] 2. The nozzle can move driven by the telescopic assembly, which is convenient for adjusting the distance between the nozzle and the billet to ensure uniform cooling of the billet. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the spray mechanism of the utility model;

[0020] Figure 3 It is a cross-sectional schematic diagram of the spray mechanism of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the fixing rod and part of the pipe clamp of the utility model.

[0022] Description of reference numerals:

[0023] 1-square frame, 2-base frame, 3-elbow, 4-nut, 5-end cover, 6-moving pipe, 7-sealing ring, 8-pipe clamp, 9-fixing rod, 10-sprinkler;

[0024] 101-mounting plate; 501-through hole; 901-long hole. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0026] like Figure 1 As shown, a second cooling chamber spray pipe fixing frame includes a square frame 1, a spray mechanism is arranged in the middle of each side of the square frame 1, and the cross section of each side of the square frame 1 is arranged in an L shape; one side of the square frame 1 is fixed to the base frame 2 by bolts; the base frame 2 is arranged in an inverted concave shape as a whole. The steel billet can pass through the middle of the square frame 1 and is completely sprayed and cooled by the spray mechanism arranged in the middle of each side of the square frame 1, thereby avoiding the external interference of the cooling of the steel billet and ensuring the uniform cooling of the steel billet. The base frame 2 arranged in an inverted concave shape ensures the smooth discharge of the spray water, avoids the temperature difference caused by the accumulation of the spray water on the base frame 2, and ensures the uniform cooling of the steel billet.

[0027] The middle of each side of the square frame 1 is welded with a mounting plate 101, and the spray mechanism is arranged on the mounting plate 101, so as to facilitate the disassembly and assembly of the spray mechanism. The square frame 1 is welded with angle steel of ∠50×4mm.

[0028] like Figure 2-4As shown, the spray mechanism includes an elbow 3, which is a 90° elbow; the elbow 3 is arranged on the mounting plate 101 through two nuts 4, and an outer wall of one end of the elbow 3 is provided with an external thread; one end of the elbow 3 is used for external cooling water, and the other end is provided with a telescopic component; the telescopic component is connected to the spray head 10. The spray head 10 can move under the drive of the telescopic component, so that the distance between the spray head 10 and the steel billet can be adjusted conveniently to ensure uniform cooling of the steel billet.

[0029] In the above arrangement, the telescopic assembly includes an end cap 5 threadedly arranged at the end of the elbow 3; a through hole 501 is arranged on the end cap 5; a moving tube 6 is slidably arranged in the through hole 501; the lower end of the moving tube 6 is arranged in the elbow 3, and the upper end is threadedly arranged with a nozzle 10. The moving tube 6 can move axially to adjust the depth of the moving tube 6 in the elbow 3, so as to facilitate the adjustment of the distance between the nozzle 10 and the steel billet. A sealing ring 7 is arranged on the lower outer wall of the moving tube 6 to cooperate with the inner wall of the elbow 3 to increase the sealing between the moving tube 6 and the elbow 3 and reduce the leakage of the spray water. The upper outer wall of the moving tube 6 is connected to a fixing rod 9 through a pipe clamp 8, and an annular groove is arranged on the upper outer wall of the moving tube 6. The pipe clamp 8 includes two semicircular ring plates that are interlocked with each other, and the two semicircular ring plates are arranged in the annular groove, and one end of one of the semicircular ring plates is welded to the fixing rod 9; the fixing rod 9 is fixed to the mounting plate 101 by bolts. The fixing rod 9 is provided with an elongated hole 901, through which a bolt is threadedly installed on the mounting plate 101. The bolt in the elongated hole 901 is used to fix the position of the fixing rod 9 on the mounting plate 101, thereby fixing the depth of the moving pipe 6 in the elbow 3 and adjusting the distance between the nozzle 10 and the steel billet.

[0030] In other alternative embodiments, the telescopic assembly includes a flexible tube, one end of which is connected to the end of the elbow 3, and the other end is connected to the nozzle 10; a tube clamp 8 is provided at the connection between the nozzle 10 and the flexible tube, and one end of one of the semicircular rings of the tube clamp 8 is welded to the fixing rod 9.

[0031] Although the utility model is described in detail by referring to the accompanying drawings and in combination with the preferred embodiments, the utility model is not limited thereto. Without departing from the spirit and essence of the utility model, a person of ordinary skill in the art may make various equivalent modifications or substitutions to the embodiments of the utility model, and these modifications or substitutions shall be within the scope of the utility model / any person of ordinary skill in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the utility model, and they shall be within the scope of protection of the utility model. Therefore, the scope of protection of the utility model shall be based on the scope of protection of the claims.

Claims

1. A second cooling chamber spray pipe fixing frame, comprising a square frame (1), wherein a spray mechanism is arranged in the middle of each side of the square frame (1), characterized in that: The cross section of each side of the square frame (1) is arranged in an L-shape; one side of the square frame (1) is fixed to the base frame (2) by means of bolts; and the base frame (2) is arranged in an inverted concave shape as a whole.

2. The second cooling chamber spray pipe fixing bracket according to claim 1, characterized in that: A mounting plate (101) is provided in the middle of each side of the square frame (1); and the spray mechanism is provided on the mounting plate (101).

3. The second cooling chamber spray pipe fixing bracket according to claim 2, characterized in that: The spray mechanism comprises an elbow (3); the elbow (3) is arranged on a mounting plate (101) via two nuts (4); one end of the elbow (3) is used for externally connecting cooling water, and the other end is provided with a telescopic component; the telescopic component is connected to the spray head (10).

4. The second cooling chamber spray pipe fixing bracket according to claim 3, characterized in that: The telescopic assembly comprises an end cover (5) threadedly arranged at the end of the elbow (3); a through hole (501) is arranged on the end cover (5); a moving tube (6) is slidably arranged in the through hole (501); the lower end of the moving tube (6) is arranged in the elbow (3), and the upper end is threadedly arranged with a nozzle (10).

5. The second cooling chamber spray pipe fixing bracket according to claim 4, characterized in that: A sealing ring (7) is provided on the outer wall of the lower part of the moving pipe (6) to match the inner wall of the elbow (3).

6. The second cooling chamber spray pipe fixing bracket according to claim 5, characterized in that: The upper outer wall of the movable tube (6) is connected to a fixing rod (9) via a tube clamp (8); the fixing rod (9) is fixed to the mounting plate (101) via bolts.

7. The second cooling chamber spray pipe fixing bracket according to claim 6, characterized in that: The fixing rod (9) is provided with an elongated hole (901), and a bolt passes through the elongated hole (901) and is threadedly arranged on the mounting plate (101).

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