Rough rolling inlet air knife structure for copper rod continuous casting and rolling production line

Abstract

The utility model discloses a rough rolling inlet air knife structure for a copper rod continuous casting and rolling production line. The rough rolling inlet air knife structure comprises a first air knife cylinder and a second air knife cylinder. The end of the second air knife cylinder is provided with a first slope, the position, matched with the first slope, of the first air knife cylinder is provided with a second slope, and a gap is reserved between the first slope and the second slope to form an air outlet channel. A gap is reserved between the outer wall of the second air knife cylinder and the inner wall of the first air knife cylinder to form an air inlet channel; the included angle between the air outlet channel and the perpendicular line of the axis of the air knife structure ranges from 30 degrees to 40 degrees. A collection point of extension lines of the air outlet channels is located in the first air knife cylinder. After the air knife structure is improved, the gathering point of the sealing surface of the air knife is more compact, the sealing effect is better, the first air knife cylinder is integrally lengthened, and the amount of emulsion entering the cylinder wall is reduced; in order to further reduce the leakage probability of the emulsion, a baffle structure is additionally added.

Description

Technical Field

[0001] The utility model relates to the technical field of copper smelting and processing equipment, in particular to a rough rolling inlet air knife structure for a copper rod continuous casting and rolling production line. Background Art

[0002] The continuous casting and rolling production equipment unit is mainly a rolling mill, which is a device that uses large-diameter rollers and large compression ratios to roll large-section ingots to obtain the ingot area required for subsequent processes. The use of emulsion (for cooling the copper rod) in the rolling process can accurately control the temperature of the copper rod, obtain a stable copper ingot core structure (reduce / eliminate internal cracks and bubbles), and ensure the stability of its product quality.

[0003] At present, emulsion spraying is mainly used to control the temperature of copper billets. The specific process is: the emulsion is pressurized by the emulsion pump, and reaches the emulsion nozzle through the transportation pipeline to directionally cool the copper billet. Different pressures and flows result in copper billets of different temperatures.

[0004] In the prior art, the mill inlet is designed with an open round hole. Considering that the emulsion itself is under pressure, splashing is inevitable during the spray cooling process. To avoid this, an air knife structure is installed on the outside of the mill mouth. During the normal use of the air knife, a large amount of emulsion still leaks out, causing waste. The effect is not obvious by adjusting the wind pressure and other means.

[0005] See also Figure 1 As shown, Figure 1 The structure of the wind knife structure in the prior art is shown. After careful analysis of the wind knife structure in the prior art, the defects of the prior art are found: since the rolling mill inlet is close to the emulsion nozzle, the limitation of the wind knife angle cannot form an effective blockade of the emulsion, and the emulsion nozzle is not suitable for modification due to space limitations. In addition, the existing wind knife structure has a far-away convergence point of the blocking surface due to the outlet angle and its own structure, and an effective and complete sealing surface cannot be formed in the cylinder wall of the wind knife, which has a poor effect in preventing the emulsion from splashing.

[0006] Based on the above technical problems, technicians in this field urgently need to develop a rough rolling inlet air knife structure for a copper rod continuous casting and rolling production line. Utility Model Content

[0007] The utility model aims to provide a rough rolling inlet air knife structure for a copper rod continuous casting and rolling production line, which effectively solves the problem of emulsion splashing and achieves the purpose of reducing costs and increasing efficiency.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] The utility model discloses a rough rolling inlet air knife structure for a copper rod continuous casting and rolling production line, and the air knife structure comprises:

[0010] A first air knife cylinder and a second air knife cylinder;

[0011] The second wind knife cylinder is embedded in one end of the first wind knife cylinder, and the outer diameter of the end of the second wind knife cylinder embedded in the first wind knife cylinder is smaller than the inner diameter of the corresponding part of the first wind knife cylinder;

[0012] The end of the second wind knife cylinder has a first inclined surface, the position where the first wind knife cylinder cooperates with the first inclined surface has a second inclined surface, and a gap is reserved between the first inclined surface and the second inclined surface to form an air outlet channel;

[0013] A gap is reserved between the outer wall of the second wind knife cylinder and the inner wall of the first wind knife cylinder to form an air inlet channel;

[0014] The first wind knife cylinder is provided with a main air inlet which is connected with the air inlet channel;

[0015] The angle between the air outlet channel and the vertical line of the axis of the wind knife structure is in the range of 30°-40°;

[0016] The convergence point of the extension lines of the air outlet channels is located inside the first air knife cylinder.

[0017] Furthermore, the distance from one end of the air outlet channel located on the inner wall of the first air knife cylinder to the front end of the first air knife cylinder is 120 mm.

[0018] Furthermore, the angle between the air outlet channel and a line perpendicular to the axis of the wind knife structure is 35°.

[0019] Furthermore, a baffle structure is installed at the end of the second air knife cylinder;

[0020] The baffle structure comprises:

[0021] an upper rail at the upper end;

[0022] a lower rail at the lower end; and

[0023] An inlet baffle is located between the upper guide rail and the lower guide rail, and an inlet is provided at a position where the inlet baffle cooperates with the hollow channel of the wind knife structure.

[0024] Furthermore, the inlet baffle is a split structure, which is divided into two baffles distributed along the length direction of the upper guide rail and the lower guide rail;

[0025] The inlet baffle is provided with a wedge-shaped opening whose size matches the size of the copper billet.

[0026] Furthermore, the baffle split can slide along the extension direction of the upper guide rail and the lower guide rail to adjust the relative position.

[0027] In the above technical scheme, the utility model provides a rough rolling inlet air knife structure for a copper rod continuous casting and rolling production line, which has the following beneficial effects:

[0028] After the wind knife structure of the utility model is improved, the gathering point of the wind knife blocking surface is more compact, the blocking effect is better, and the first wind knife cylinder is lengthened as a whole, and the amount of emulsion entering the cylinder wall is reduced; in order to further reduce the probability of emulsion leakage, an additional baffle structure is added. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. It is obvious that the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0030] Figure 1 It is a structural schematic diagram of a wind knife structure in the prior art;

[0031] Figure 2 It is a structural schematic diagram of a rough rolling inlet air knife structure for a copper rod continuous casting and rolling production line disclosed in an embodiment of the utility model;

[0032] Figure 3 The utility model discloses a baffle structure of a rough rolling inlet air knife structure for a copper rod continuous casting and rolling production line disclosed in an embodiment of the utility model.

[0033] Description of reference numerals:

[0034] 101, a first wind knife cylinder; 102, a second wind knife cylinder;

[0035] 201, main air inlet; 202, air inlet channel; 203, air outlet channel;

[0036] 3. Baffle structure;

[0037] 301, upper guide rail; 302, lower guide rail; 303, inlet baffle; 304, inlet. DETAILED DESCRIPTION

[0038] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0039] See also Figures 2 to 3 As shown;

[0040] A rough rolling inlet air knife structure for a copper rod continuous casting and rolling production line according to this embodiment includes:

[0041] A first wind knife cylinder 101 and a second wind knife cylinder 102;

[0042] The second wind knife cylinder 102 is embedded in one end of the first wind knife cylinder 101, and the outer diameter of the end of the second wind knife cylinder 102 embedded in the first wind knife cylinder 101 is smaller than the inner diameter of the corresponding part of the first wind knife cylinder 101;

[0043] The second wind knife cylinder 102 has a first inclined surface at its end, and the first wind knife cylinder 101 has a second inclined surface at a position matching the first inclined surface, and a gap is reserved between the first inclined surface and the second inclined surface to form an air outlet channel 203;

[0044] A gap is reserved between the outer wall of the second wind knife cylinder 102 and the inner wall of the first wind knife cylinder 101 to form an air inlet channel 202;

[0045] The first wind knife cylinder 101 is provided with a main air inlet 201 which is connected with the air inlet channel 202;

[0046] The angle between the air outlet channel 203 and the vertical line of the axis of the wind knife structure is in the range of 30°-40°;

[0047] The convergence point of the extended lines of the air outlet channel 203 is located inside the first air knife cylinder 101 .

[0048] Specifically, this embodiment discloses a new imported wind knife structure, which includes a first wind knife cylinder 101 and a second wind knife cylinder 102; the specific improvement of this embodiment is that the inclination angle of the air outlet channel 203, that is, the inclination angle of the wind knife blocking surface, which is mainly the angle between the vertical line of the axis of the wind knife structure, is adjusted from the original 55° to an angle range of 30° to 40°. This makes the wind knife blocking surface more compact. At the same time, this embodiment lengthens the length of the first wind knife cylinder 101, so that the convergence point of the extension line of the air outlet channel 203, that is, the convergence point of the wind knife blocking surface, is located inside the first wind knife cylinder 101.

[0049] Preferably, the distance between the air outlet channel 203 of the present embodiment, which is located at one end of the inner wall of the first air knife cylinder 101 and the front end of the first air knife cylinder 101, is 120 mm.

[0050] Preferably, the angle between the air outlet channel 203 of this embodiment and a line perpendicular to the axis of the wind knife structure is 35°.

[0051] Preferably, a baffle structure 3 is installed at the end of the second air knife cylinder 102 of this embodiment;

[0052] The baffle structure 3 comprises:

[0053] An upper guide rail 301 at the upper end;

[0054] A lower guide rail 302 at the lower end; and

[0055] An inlet baffle 303 is located between the upper guide rail 301 and the lower guide rail 302 , and an inlet 304 is provided at a position where the inlet baffle 303 cooperates with the hollow channel of the wind knife structure.

[0056] The inlet baffle 303 of this embodiment is a split structure, which is divided into two baffles distributed along the length direction of the upper guide rail 301 and the lower guide rail 302;

[0057] The inlet baffle 303 is provided with a wedge-shaped opening whose size matches the size of the copper billet.

[0058] The baffle split body can slide along the extension direction of the upper guide rail 301 and the lower guide rail 302 to adjust the relative position.

[0059] In the above technical scheme, the utility model provides a rough rolling inlet air knife structure for a copper rod continuous casting and rolling production line, which has the following beneficial effects:

[0060] After the wind knife structure of the utility model is improved, the gathering point of the wind knife blocking surface is more compact, the blocking effect is better, and the first wind knife cylinder 101 is lengthened as a whole, and the amount of emulsion entering the cylinder wall is reduced; in order to further reduce the probability of emulsion leakage, an additional baffle structure is added.

[0061] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A rough rolling inlet air knife structure for a copper rod continuous casting and rolling production line, characterized in that: The wind knife structure includes: A first wind knife cylinder (101) and a second wind knife cylinder (102); The second wind knife cylinder (102) is embedded in one end of the first wind knife cylinder (101), and the outer diameter of the end of the second wind knife cylinder (102) embedded in the first wind knife cylinder (101) is smaller than the inner diameter of the corresponding part of the first wind knife cylinder (101); The end of the second wind knife cylinder (102) has a first inclined surface, the position where the first wind knife cylinder (101) cooperates with the first inclined surface has a second inclined surface, and a gap is reserved between the first inclined surface and the second inclined surface to form an air outlet channel (203); A gap is reserved between the outer wall of the second wind knife cylinder (102) and the inner wall of the first wind knife cylinder (101) to form an air inlet channel (202); The first wind knife cylinder (101) is provided with a main air inlet (201) connected to the air inlet channel (202); The angle between the air outlet channel (203) and a line perpendicular to the axis of the wind knife structure is in the range of 30°-40°; The convergence point of the extended lines of the air outlet channel (203) is located inside the first air knife cylinder (101).

2. The rough rolling inlet air knife structure for a copper rod continuous casting and rolling production line according to claim 1 is characterized in that: The distance between one end of the air outlet channel (203) located on the inner wall of the first air knife cylinder (101) and the front end of the first air knife cylinder (101) is 120 mm.

3. The rough rolling inlet air knife structure for a copper rod continuous casting and rolling production line according to claim 1 is characterized in that: The angle between the air outlet channel (203) and a line perpendicular to the axis of the wind knife structure is 35°.

4. A rough rolling inlet air knife structure for a copper rod continuous casting and rolling production line according to any one of claims 1 to 3, characterized in that: A baffle structure (3) is installed at the end of the second wind knife cylinder (102); The baffle structure (3) comprises: An upper guide rail (301) at the upper end; a lower guide rail (302) at the lower end; and An inlet baffle (303) is located between the upper guide rail (301) and the lower guide rail (302), and an inlet (304) is provided at a position where the inlet baffle (303) cooperates with the hollow channel of the wind knife structure.

5. The rough rolling inlet air knife structure for a copper rod continuous casting and rolling production line according to claim 4 is characterized in that: The inlet baffle (303) is a split structure, which is divided into two baffle parts distributed along the length direction of the upper guide rail (301) and the lower guide rail (302); The inlet baffle (303) is provided with a wedge-shaped opening whose size matches the size of the copper billet.

6. The rough rolling inlet air knife structure for a copper rod continuous casting and rolling production line according to claim 5, characterized in that: The baffle split body can slide along the extension direction of the upper guide rail (301) and the lower guide rail (302) to adjust the relative position.

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