A movable wind shielding device for a hot-base galvanized steel strip cooling air box

Abstract

The utility model relates to a movable wind -shield device for hot base galvanizing strip steel cooling air bellow belongs to metallurgical industry hot base galvanizing strip steel production equipment technical field. Technical scheme is: contain cooling air bellow (6) and air pipe (7), be equipped with two rows of air pipe (7) in cooling air bellow (6), each row contains multiple air pipe (7), and the strip steel passes through between two rows of air pipe (7), and each air pipe (7) is equipped with the air outlet (8) that is towards the strip steel and is evenly arranged, and is equipped with two wind -shields (3) between each row air pipe (7) with the strip steel, wind -shield (3) slidingly connects on slide (1), and slide (1) is fixed in cooling air bellow (6), the two wind -shields (3) between each row air pipe (7) with the strip steel are close to the two side parts of strip steel, and the air outlet (8) of air pipe (7) side part is shielded. The utility model has the beneficial effects that: can adjust conveniently and quickly for different specifications strip steel, guarantee the uniformity of strip steel cooling speed in width direction.

Description

Technical Field

[0001] This utility model relates to a mobile windbreak device for a cooling air box for hot-dip galvanized strip steel, belonging to the technical field of hot-dip galvanized strip steel production equipment in the metallurgical industry. Background Technology

[0002] The cooling box for hot-dip galvanized strip steel is used in hot-dip galvanizing production lines to produce strip steel with thick zinc coatings. The box contains two rows of air ducts 7, each row containing multiple ducts 7. The strip steel passes between the two rows of ducts 7. Each duct 7 has evenly distributed air outlets 8 facing the strip steel. During production, because the edges of the strip steel have a larger heat dissipation area than the center, heat is lost more quickly at the edges under the air-cooled environment of the cooling box, resulting in excessively rapid cooling at the edges. This uneven cooling rate leads to inconsistent solidification of the zinc coating on the strip steel surface, resulting in diagonal zinc coating defects. These diagonal zinc coating defects not only affect the appearance quality of the strip steel, making it difficult to meet the aesthetic requirements of some high-end applications, such as appliance panels and automotive exterior parts, but may also reduce the protective performance of the galvanized coating to some extent, affecting the corrosion resistance life of the strip steel. Utility Model Content

[0003] The purpose of this invention is to provide a mobile windbreak device for a cooling box for hot-dip galvanized strip steel, which can be conveniently and quickly adjusted for strip steel of different specifications, ensuring the uniformity of cooling speed of the strip steel in the width direction, and solving the problems existing in the background technology.

[0004] The technical solution of this utility model is: A movable windbreak device for a cooling air box for hot-dip galvanized strip steel includes a cooling air box and air ducts. The cooling air box has two rows of air ducts, each row containing multiple air ducts. The strip steel passes through the space between the two rows of air ducts. Each air duct has an air outlet facing the strip steel and evenly distributed. Two windbreak plates are provided between each row of air ducts and the strip steel. The windbreak plates are slidably connected to a slide rail, which is fixed inside the cooling air box.

[0005] The two baffles between each row of air ducts and the strip steel are located near the two sides of the strip steel, blocking the air outlets at the sides of the air ducts.

[0006] The wind deflector is slidably connected to the slide rail via a trolley.

[0007] The wind deflector is fixed to the trolley by fasteners, and the trolley is equipped with wheels and wheel axles that cooperate with the slide rail.

[0008] The fastener is a right-angled iron plate, with elongated holes on both sides of the plate that mate with bolts.

[0009] The wheels and wheel axles of the trolley are mounted on the guide wheel frame.

[0010] The wind deflector is rectangular, and the slide rails are three spaced apart.

[0011] The beneficial effects of this invention are: It has a simple structure, low cost, and can flexibly adjust and precisely control the cooling position. This device can be easily and quickly adjusted for different specifications of strip steel, ensuring uniform cooling speed in the width direction, avoiding inconsistent zinc layer solidification on the strip steel surface, improving product quality and production efficiency, and reducing production costs. Attached Figure Description

[0012] Figure 1 This is a front view of the present utility model; Figure 2 This is a partial schematic diagram of the back of the present invention; Figure 3 This is a schematic diagram of the pulley of this utility model; Figure 4 This is a schematic diagram of the guide wheel frame of this utility model; Figure 5 This is a schematic diagram showing the installation of the trolley, guide wheel frame, slide rail, and wind deflector of this utility model; Figure 6 This is a schematic diagram of the overall usage state of this utility model; In the diagram: 1. Slide rail; 2. Trolley; 3. Baffle plate; 4. Fixture; 5. Guide wheel frame; 6. Cooling air box; 7. Air duct; 8. Air outlet; 9. Steel strip; 21. Vehicle body; 22. Wheel; 23. Wheel axle; 24. Screw; 31. Angle iron; 32. Bolt hole; 51. Reinforcing ribs; 52. Mounting plate. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings and examples.

[0014] See attached document Figure 1-6 A movable windbreak device for a cooling air box for hot-dip galvanized strip steel includes a cooling air box 6 and air ducts 7. The cooling air box 6 is provided with two rows of air ducts 7, each row containing multiple air ducts 7. The strip steel passes through the space between the two rows of air ducts 7. Each air duct 7 is provided with an air outlet 8 facing the strip steel and evenly distributed. Two windbreak plates 3 are provided between each row of air ducts 7 and the strip steel. The windbreak plates 3 are slidably connected to a slide rail 1, and the slide rail 1 is fixed inside the cooling air box 6.

[0015] In this embodiment, refer to the appendix Figure 1-6 The windbreak device includes a slide rail 1, a trolley 2, a windbreak plate 3, a fixing component 4, and a guide wheel frame 5, wherein: The slide 1 has a long, narrow, trough-shaped structure with an opening on one side, and its cross-section is similar to a concave shape. The trolley 2 can be fully pushed into the slide 1 from the side, and the screw 24 of the trolley 2 extends out from the concave opening. The trolley 2 is connected and fixed to the fixing member 4 using a nut, and then the wind deflector 3 is connected and fixed to the other side of the fixing member 4. The guide wheel frame 5 is passed through the gap in the air duct 7 and connected and fixed to the wind deflector 3 using bolts. Another combination of slide 1 and trolley 2 is used laterally and connected and fixed to the guide wheel frame 5 using a nut.

[0016] The trolley 2 has four wheels 22, which are connected to the car body 21 via wheel axles 23. The top of the car body 21 is provided with screws 24.

[0017] The wind deflector 3 is a long strip of iron plate with folded edges on both sides. An angle iron 31 is provided on one side of the wind deflector 3 for support and reinforcement. Fixed bolt holes 32 are provided at corresponding positions on the wind deflector 3, and the inside is threaded. There are two circular openings on the top of the wind deflector 3.

[0018] The fastener 4 is a right-angled iron plate with long strip-shaped openings on the two right-angled sides to facilitate adjustment of the installation position.

[0019] The main body of the guide wheel frame 5 is a long strip-shaped flat plate. The flat plate is connected to the vertical mounting plates 52 on both sides by triangular reinforcing ribs 51. One mounting plate 52 has a circular opening, and the two ends of the other mounting plate 52 have elongated holes to facilitate adjustment of the installation position.

[0020] See attached document Figure 1-6 The method for using and adjusting this windshield device is as follows: (1) Push the trolley 2 completely into the slide 1 from the side, and weld and fix both ends of the slide 1 to the top of the production line cooling air box 6, close to the side of the strip steel channel. (2) Adjust the fixing bolts of the fixing part 4 and the trolley 2 so that the wind baffle 3 is attached to the air outlet 8 on the air pipe 7; adjust the fixing bolts of the fixing part 4 and the wind baffle 3 so that the wind baffle 3 remains vertically downward. (3) Pass the guide wheel frame 5 through the gap in the air duct 7 and connect it to the bolt hole of the wind baffle 3 with bolts; (4) Use the combination of another set of slide 1 and trolley 2 horizontally. Connect and fix it to guide wheel frame 5 through screw 24 on trolley 2, and adjust the distance between the lower end of wind baffle 3 and air outlet 8 on air pipe 7 with nut on screw 24. After adjustment, weld both ends of the horizontally used slide 1 to the side wall of cooling air box 6. (5) The adjustment method for the bottom side slide combination is the same as step (4) above. (6) Based on the strip width and the location of the diagonal defects, push the trolley 2 along the slide rail 1 so that the baffle plate 3 covers the edge air outlet area of ​​the equipment air duct 7; (7) If the strip steel specifications are changed, such as from thick zinc layer to conventional zinc layer, simply push the trolley 2 in the opposite direction to move the baffle 3 to the non-working area on both sides of the equipment air duct 7.

Claims

1. A movable windbreak device for a cooling air box for hot-dip galvanized strip steel, comprising a cooling air box (6) and air ducts (7), wherein the cooling air box (6) is provided with two rows of air ducts (7), each row containing multiple air ducts (7), the strip steel passes through the two rows of air ducts (7), and each air duct (7) is provided with an air outlet (8) facing the strip steel and evenly arranged, characterized in that: Two baffle plates (3) are provided between each row of air ducts (7) and the strip steel. The baffle plates (3) are slidably connected to the slide rail (1), and the slide rail (1) is fixed inside the cooling air box (6).

2. A mobile windbreak device for a cooling air box for hot-dip galvanized steel strip according to claim 1, characterized in that: The two baffles (3) between each row of air ducts (7) and the strip steel are close to the two sides of the strip steel, blocking the air outlets (8) at the sides of the air ducts (7).

3. A movable windbreak device for a cooling air box for hot-dip galvanized steel strip according to claim 1 or 2, characterized in that: The wind deflector (3) is slidably connected to the slide rail (1) via the trolley (2).

4. A mobile windbreak device for a cooling air box for hot-dip galvanized steel strip according to claim 3, characterized in that: The wind deflector (3) is fixed to the trolley (2) by a fastener (4). The trolley (2) is equipped with a wheel (22) and a wheel axle (23) that cooperate with the slide (1).

5. A mobile windbreak device for a cooling air box for hot-dip galvanized steel strip according to claim 4, characterized in that: The fastener (4) is a right-angled iron plate, and both sides of the right-angled iron plate are provided with long strip holes that cooperate with bolts.

6. A movable windbreak device for a cooling air box for hot-dip galvanized steel strip according to claim 4, characterized in that: The wheels (22) and wheel axles (23) of the trolley (2) are mounted on the guide wheel frame (5).

7. A mobile windbreak device for a cooling air box for hot-dip galvanized steel strip according to claim 3, characterized in that: The wind deflector (3) is rectangular, and the slide rails (1) are three arranged at intervals.

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