Cooling device with water vapor guiding-out function for steel rolling

Abstract

The utility model discloses a steel rolling cooling device with a water vapor leading-out function, which comprises a cooling box, the top of the cooling box is provided with an exhaust mechanism, the exhaust mechanism is composed of an air guide cover, an exhaust fan, an exhaust branch pipe and a main exhaust pipe, the top of the cooling box is provided with three exhaust ports, and the exhaust ports are communicated with the main exhaust pipe. The top of each exhaust port is provided with an air guide cover, the inner top face of each air guide cover is provided with an exhaust fan, the top of each air guide cover is fixedly connected with an exhaust branch pipe, the exhaust branch pipes are arranged over the exhaust fans, and the main exhaust pipe is arranged at the tops of the three air guide covers. The exhaust mechanism is additionally arranged at the top of the cooling box, water vapor is rapidly collected through the air guide cover, the water vapor is dragged through the exhaust fan, the water vapor is guided into the main exhaust pipe through the exhaust branch pipe, and finally the water vapor is directionally exhausted through the main exhaust pipe, so that the water vapor can be prevented from being dispersed everywhere, and the influence on the working environment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of steel production, and particularly relates to a cooling device for steel rolling with a function of water vapor exportation. Background Art

[0002] Steel rolling refers to the process of rolling hot or cold steel billets through a rolling mill. Steel rolling can be divided into two methods: hot rolling and cold rolling. Among them, hot rolling refers to the rolling process completed at high temperatures and is commonly used for mass production of steel; cold rolling refers to the rolling process completed at room temperature or below room temperature and is commonly used for producing steel with high precision and high surface quality. Hot rolling is one of the key links in steel manufacturing. Through plastic deformation at high temperatures, the steel billet is processed into the required shape and size. However, scale will be generated on the surface of the steel processed at high temperatures, which affects the surface quality of the steel. Therefore, it is necessary to cool down the surface temperature of the steel to reduce the generation of scale. At this time, the role of water cooling is reflected. Compared with other cooling media, water has a large specific heat capacity and fast heat dissipation, and can quickly reduce the temperature of the steel, reduce the generation of scale, and thus improve the surface quality of the steel.

[0003] When some existing cooling devices are in use, atomizing nozzles are arranged inside the cooling tank to spray and cool the rolled steel, but the cooling tank is not equipped with an exhaust device, and the high-temperature water vapor generated during cooling is likely to disperse everywhere, thereby causing unnecessary impacts on the working environment.

[0004] For example, a water-cooling device for steel rolling disclosed in the patent with the publication number CN219560934U forces the steel to rotate by setting a rubbing mechanism. The rubbing mechanism consists of a bidirectional lead screw, a left rubbing part and a right rubbing part. The rotation of the bidirectional lead screw drives the left rubbing part and the right rubbing part to move towards or away from each other. When the left rubbing part and the right rubbing part move towards or away from each other, they force the steel to rotate back and forth. Cooling water is sprayed onto the entire surface of the steel through the atomizing nozzles, and the steel rotating back and forth is evenly cooled in the water mist, which is beneficial to reducing the generation of internal stress.

[0005] The cooling tank of this patent is provided with atomizing nozzles inside, but it is not equipped with a corresponding exhaust device. The high-temperature water vapor generated during spray cooling is likely to disperse everywhere, thereby causing unnecessary impacts on the working environment.

[0006] Therefore, it is very necessary to invent a cooling device for steel rolling with a function of water vapor exportation to solve the above problems. Utility Model Content

[0007] The purpose of the utility model is to provide a cooling device for steel rolling with a function of water vapor exportation to solve the problems in the above technology.

[0008] To achieve the above object, the present utility model provides the following technical solution: A cooling device for steel rolling with a function of water vapor export, including a cooling box, an exhaust mechanism is arranged on the top of the cooling box, the exhaust mechanism is composed of a gas guide cover, an exhaust fan, an exhaust branch pipe and a main exhaust pipe, three exhaust ports are opened on the top of the cooling box, a gas guide cover is installed on the top of each exhaust port, an exhaust fan is installed on the inner top surface of each gas guide cover, an exhaust branch pipe is fixedly connected to the top of each gas guide cover, the exhaust branch pipe is arranged directly above the exhaust fan, the main exhaust pipe is arranged on the top of the three gas guide covers, and the tops of the three exhaust branch pipes are all connected to the main exhaust pipe.

[0009] First, the water vapor is quickly collected through the gas guide cover, then the water vapor is pulled by the exhaust fan, then the water vapor is introduced into the main exhaust pipe through the exhaust branch pipe, and finally the water vapor is discharged directionally through the main exhaust pipe.

[0010] Preferably, a spray cooling mechanism is arranged inside the cooling box, the spray cooling mechanism is composed of multiple groups of atomizing nozzles, and multiple groups of atomizing nozzles are distributed in a linear array.

[0011] When the steel passes through the cooling box, cooling water is sprayed on the surface of the pipe through multiple groups of spray cooling mechanisms, so as to cool down the steel.

[0012] Preferably, the number of each group of atomizing nozzles is set to four, the four atomizing nozzles are respectively installed on both sides of the inner wall of the cooling box, and the openings of the four atomizing nozzles are all arranged towards the same center.

[0013] The surface of the steel is evenly sprayed by the atomizing nozzles surrounding it, so that the steel can be cooled evenly, thereby reducing the generation of internal stress.

[0014] Preferably, a load-carrying roller group is arranged inside the cooling box, the number of the load-carrying roller groups is set to be multiple, and multiple groups of load-carrying roller groups are distributed in a linear array.

[0015] The steel is lifted by the load-carrying roller group, which is convenient for suspending spraying of the steel.

[0016] Preferably, each load-carrying roller group is composed of two sliding rollers, the two sliding rollers are arranged parallel to each other up and down, and both sliding rollers are rotatably connected to the inner wall of the cooling box.

[0017] The surface of the sliding roller is smooth and not easy to cause excessive friction with the steel, so that the steel can pass through the cooling box smoothly.

[0018] Preferably, a feed port is opened at one end of the cooling box, a discharge port is opened at the other end of the cooling box, and waterproof door curtains are installed at both the feed port and the discharge port.

[0019] The water vapor inside the cooling box is blocked by a waterproof curtain to prevent the water vapor from escaping from the ports of the cooling box.

[0020] Preferably, traction mechanisms are provided at both ends of the cooling box. The traction mechanism includes loading plates. The number of the loading plates is set to two, and the two loading plates are respectively fixedly connected to both sides of the ports of the cooling box.

[0021] The entire traction mechanism is erected at the ports of the cooling box through the arrangement of the loading plates.

[0022] Preferably, two traction rollers are rotatably connected between the two loading plates. The two traction rollers are arranged parallel to each other vertically. The two traction rollers are driven by gears. A driving motor is installed on one side of one of the loading plates, and one end of one of the traction rollers is in transmission connection with the driving motor.

[0023] The driving motor and the gears can drive the two traction rollers to rotate in opposite directions, thereby pushing the steel forward for conveying.

[0024] In the above technical solution, the technical effects and advantages provided by the present utility model are as follows:

[0025] 1. By adding an exhaust mechanism to the top of the cooling box, the water vapor is quickly collected by the air guide cover, the water vapor is pulled by the exhaust fan, the water vapor is introduced into the main exhaust pipe through the exhaust branch pipe, and finally the water vapor is discharged directionally through the main exhaust pipe, which can prevent the water vapor from diffusing everywhere, thereby reducing the impact on the working environment;

[0026] 2. By moving the traction mechanism to the outside of the cooling box, the adverse effect of the humid and hot environment inside the cooling box on the traction mechanism can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram of the overall structure of the present utility model from the first perspective;

[0028] Figure 2 is a schematic diagram of the overall structure of the present utility model from the second perspective;

[0029] Figure 3 is a cross-sectional view of the horizontal structure of the present utility model;

[0030] Figure 4 is a cross-sectional view of the longitudinal structure of the present utility model;

[0031] Figure 5 is a schematic diagram of the structure of the traction mechanism of the present utility model.

[0032] Description of the reference numerals:

[0033] 1. Cooling box; 2. Air guide hood; 3. Exhaust fan; 4. Exhaust branch pipe; 5. Main exhaust pipe; 6. Atomizing nozzle; 7. Loading roller group; 8. Waterproof door curtain; 9. Traction mechanism; 10. Loading plate; 11. Traction roller; 12. Driving motor. DETAILED DESCRIPTION

[0034] 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.

[0035] The utility model provides Figures 1-5 A cooling device for steel rolling with a water vapor degassing function is shown, comprising a cooling box 1, an exhaust mechanism is arranged on the top of the cooling box 1, the exhaust mechanism is composed of an air guide hood 2, an exhaust fan 3, an exhaust branch pipe 4 and a main exhaust pipe 5, three exhaust ports are opened on the top of the cooling box 1, an air guide hood 2 is installed on the top of each exhaust port, an exhaust fan 3 is installed on the inner top surface of each air guide hood 2, an exhaust branch pipe 4 is fixedly connected to the top of each air guide hood 2, the exhaust branch pipe 4 is arranged directly above the exhaust fan 3, the main exhaust pipe 5 is arranged on the top of the three air guide hoods 2, and the top ends of the three exhaust branch pipes 4 are connected to the main exhaust pipe 5.

[0036] In one aspect of the present embodiment, a spray cooling mechanism is provided inside the cooling box 1, and the spray cooling mechanism is composed of a plurality of groups of atomizing nozzles 6, and the plurality of groups of atomizing nozzles 6 are distributed in a linear array, and the number of each group of atomizing nozzles 6 is set to four, and the four atomizing nozzles 6 are respectively installed on both sides of the inner wall of the cooling box 1, and the openings of the four atomizing nozzles 6 are all arranged toward the same center, and a carrier roller group 7 is provided inside the cooling box 1, and the number of the carrier roller groups 7 is set to be multiple, and the plurality of carrier roller groups 7 are distributed in a linear array, and each carrier roller group 7 is composed of two sliding rollers, and the two sliding rollers are arranged in parallel up and down, and the two sliding rollers are rotatably connected to the inner wall of the cooling box 1, and the cooling box 1 A feed port is provided at one end, and a discharge port is provided at the other end of the cooling box 1. Waterproof door curtains 8 are installed at the feed port and the discharge port. Traction mechanisms 9 are provided at both ends of the cooling box 1. The traction mechanisms 9 include loading plates 10. The number of loading plates 10 is set to two. The two loading plates 10 are respectively fixedly connected to the two sides of the port of the cooling box 1. Two traction rollers 11 are rotatably connected between the two loading plates 10. The two traction rollers 11 are arranged parallel to each other up and down. The two traction rollers 11 are driven by gears. A driving motor 12 is installed on one side of one of the loading plates 10, and one end of one of the traction rollers 11 is transmission-connected to the driving motor 12.

[0037] Working principle of this utility model:

[0038] Refer to the instruction manual Figures 1-5, when using the present utility model, first start the drive motors 12 on the two traction mechanisms 9. The drive motors 12 cooperate with the gears to drive the traction rollers 11 to work. The hot-rolled steel is inserted from the feed port of the cooling box 1, and the steel is conveyed by the traction mechanism 9, so that the steel passes through a plurality of load-carrying roller groups 7 in sequence. Finally, the steel exits from the discharge port of the cooling box 1, and is drawn out by another traction mechanism 9;

[0039] After the steel enters the interior of the cooling box 1, start the atomizing nozzles 6. The atomizing nozzles 6 surrounding the steel uniformly spray the surface of the steel. After the cooling water contacts the steel, a part of the cooling water will be evaporated to form high-temperature water vapor. At this time, start the exhaust fan 3. The exhaust fan 3 draws the water vapor, and the air guide cover 2 facilitates the rapid collection of the water vapor. Then, the water vapor is introduced into the main exhaust pipe 5 through the exhaust branch pipe 4. Finally, the water vapor is discharged in a specific direction through the main exhaust pipe 5, which can prevent the water vapor from diffusing everywhere, thereby reducing the impact on the working environment.

Claims

1. A cooling device for steel rolling with a water vapor degassing function, comprising a cooling box (1), characterized in that: An exhaust mechanism is arranged on the top of the cooling box (1), and the exhaust mechanism consists of an air guide hood (2), an exhaust fan (3), an exhaust branch pipe (4) and a main exhaust pipe (5). Three exhaust ports are opened on the top of the cooling box (1), and an air guide hood (2) is installed on the top of each exhaust port. An exhaust fan (3) is installed on the inner top surface of each air guide hood (2). An exhaust branch pipe (4) is fixedly connected to the top of each air guide hood (2). The exhaust branch pipe (4) is arranged directly above the exhaust fan (3). The main exhaust pipe (5) is arranged on the top of the three air guide hoods (2), and the top ends of the three exhaust branch pipes (4) are connected to the main exhaust pipe (5).

2. A steel rolling cooling device with water vapor degassing function according to claim 1, characterized in that: A spray cooling mechanism is arranged inside the cooling box (1), and the spray cooling mechanism is composed of a plurality of groups of atomizing nozzles (6), and the plurality of groups of atomizing nozzles (6) are distributed in a linear array.

3. A steel rolling cooling device with water vapor degassing function according to claim 2, characterized in that: The number of the atomizing nozzles (6) in each group is set to four, and the four atomizing nozzles (6) are respectively installed on both sides of the inner wall of the cooling box (1), and the openings of the four atomizing nozzles (6) are all arranged toward the same center.

4. The steel rolling cooling device with water vapor degassing function according to claim 1, characterized in that: A carrier roller group (7) is arranged inside the cooling box (1), the carrier roller groups (7) are provided in a plurality, and the plurality of carrier roller groups (7) are distributed in a linear array.

5. A steel rolling cooling device with water vapor degassing function according to claim 4, characterized in that: Each of the load-carrying roller groups (7) is composed of two sliding rollers, the two sliding rollers are arranged in parallel up and down, and the two sliding rollers are rotatably connected to the inner wall of the cooling box (1).

6. The steel rolling cooling device with water vapor degassing function according to claim 1, characterized in that: A feed port is provided at one end of the cooling box (1), and a discharge port is provided at the other end of the cooling box (1), and waterproof door curtains (8) are installed at both the feed port and the discharge port.

7. The steel rolling cooling device with water vapor degassing function according to claim 1, characterized in that: Both ends of the cooling box (1) are provided with a traction mechanism (9), the traction mechanism (9) comprising a loading plate (10), the number of the loading plates (10) being two, the two loading plates (10) being respectively fixedly connected to both sides of a port of the cooling box (1).

8. The steel rolling cooling device with water vapor degassing function according to claim 7, characterized in that: Two traction rollers (11) are rotatably connected between the two loading plates (10); the two traction rollers (11) are arranged in parallel up and down; transmission is performed between the two traction rollers (11) via gears; a driving motor (12) is installed on one side of one of the loading plates (10); and one end of one of the traction rollers (11) is drivingly connected to the driving motor (12).

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