Longitudinal water cooling equipment for profile steel
By adopting longitudinal water-through cooling equipment in the production process of steel galvanizing, the complexity and unevenness of existing cooling methods are solved, efficient and uniform cooling of steel galvanized, and product quality is improved.
Patent Information
- Application Number
- CN202422297369.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-09-20
AI Technical Summary
During the existing steel galvanizing production process, the cooling method has problems such as equipment complexity, uneven cooling and insufficient cooling strength, which affects the surface quality of the product.
The longitudinal water-through cooling equipment is adopted to achieve uniform and efficient cooling of the steel profile through the roller conveying device and cooling water in the cooling tank body, reducing the time when the steel profile is exposed to the air.
The uniform and efficient cooling of the steel is achieved, the product quality is improved, and the equipment complexity and process layout difficulty is reduced.
Smart Images
Figure CN222821616U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to longitudinal water-penetrating cooling equipment for steel sections, belonging to the technical field of cooling after galvanizing of steel sections in the hot-dip galvanizing industry. Background Art
[0002] Hot-dip galvanizing is one of the most effective means to delay environmental corrosion of steel materials. It is to immerse the steel products after cleaning and activation in molten zinc liquid, and through the reaction and diffusion between iron and zinc, a zinc alloy coating with good adhesion is plated on the surface of the steel products. Hot-dip galvanizing of steel is one of the important hot-dip galvanizing products. In the production process of galvanizing steel, the cooling link is crucial to ensure product quality. At present, the commonly used cooling methods include immersion cooling and spray cooling, but both have certain technical problems and limitations. In the production process of galvanizing steel, the cooling of steel parts is an important link. At present, for the cooling of steel, one method is to use oblique water entry and water exit for immersion cooling, for example: Chinese patent CN2018214162522 name "A cooling device for hot-dip galvanizing of steel", etc. However, this method needs to turn 90° and then enter the water horizontally when the production line moves along the length of the steel, which prolongs the exposure time of the steel to the air, increases the complexity of the equipment and affects the surface quality of the product. Another method is to use spray cooling, such as Chinese patent CN2021220834162 "Uniform cooling structure of cooling device for processing galvanized steel lined corrugated steel plate", etc. However, this method has low cooling intensity and is prone to uneven cooling, causing bending of the steel. In summary, the immersion cooling method of the prior art increases the complexity of the equipment and affects the surface quality of the product when the movement direction of the production line changes, and the spray cooling method has the problems of insufficient cooling intensity and uneven cooling. Utility Model Content
[0003] The purpose of the utility model is to provide a longitudinal water-penetrating cooling device for steel sections, which realizes uniform and efficient cooling of steel sections through longitudinal immersion cooling, reduces the time that the steel sections are exposed to the air, and improves product quality; reduces the complexity of equipment and the difficulty of process layout, and solves the above-mentioned technical problems existing in the background technology.
[0004] The technical solution of the utility model is:
[0005] A longitudinal water-penetrating cooling device for steel sections comprises a cooling trough body, a transmission device, a water tank, a water pump and a cooler. A roller conveyor device for conveying steel sections is arranged in the cooling trough body, and the roller conveyor device is driven by the transmission device. A water inlet and a water return port are arranged on the cooling trough body. A water outlet pipe at the lower part of the water tank is connected to the water inlet through a water pump and a cooler, and the water return port is connected to the water return pipe at the upper part of the water tank. A steel section inlet and a steel section outlet are respectively arranged at the front and rear ends of the cooling trough body. A steel section workpiece enters the cooling trough body through the steel section inlet, and the transmission device drives the roller conveyor device to transport the steel section workpiece longitudinally, and cooling is achieved by the cooling water in the cooling trough body. The cooled steel section workpiece leaves the cooling trough body through the steel section outlet.
[0006] A front guide device and a front profiling plate are sequentially arranged at the front end of the roller conveyor device inside the cooling trough along the moving direction of the profiled steel, and a rear guide device and a rear profiling plate are sequentially arranged at the rear end of the roller conveyor device along the moving direction of the profiled steel; the front guide device and the rear guide device have the same structure and both comprise a cylinder, an upper partition, a longitudinal partition and a lower partition; the cylinder is divided into a plurality of horizontally penetrating spaces by a plurality of longitudinal partitions, a horizontal profiled steel channel is formed in the space by the upper partition and the lower partition, and the profiled steel channel is in a trumpet shape, the profiled steel guide inlet of the profiled steel channel is relatively wide, the profiled steel guide outlet is relatively narrow, and the shape of the profiled steel guide outlet is consistent with the cross-sectional shape of the profiled steel to be cooled Matching; the front profiling plate and the rear profiling plate have the same structure, both of which are provided with a plurality of horizontally arranged steel profiling holes on the profiling plate body, the steel profiling holes match the shape of the steel guide outlet, and the steel profiling holes are close to the steel guide outlet to facilitate the passage of the steel; the front profiling plate and the rear profiling plate are arranged perpendicular to the moving direction of the steel, and the interior of the cooling trough body is divided into three areas, the area between the front profiling plate and the rear profiling plate is the water filling section, the area between the front profiling plate and the steel inlet is the front return water section, and the area between the rear profiling plate and the steel outlet is the rear return water section, a plurality of water inlets are arranged on the side wall of the cooling trough body water filling section, and a plurality of return water inlets are respectively arranged on the bottom of the cooling trough body at the front and rear return water sections.
[0007] The water tank, water pump and cooler are arranged outside the cooling tank body.
[0008] The cooling trough body is provided with an overflow port, which is arranged on the side wall of the water filling section of the cooling trough body and close to the inlet position of the steel section.
[0009] The front guide device and the rear guide device are used to ensure that the steel workpiece can pass through the front profiling plate and the rear profiling plate; the front profiling plate and the rear profiling plate mainly function to ensure that the cooling liquid level can be established in the cooling tank body so that the steel workpiece is below the cooling liquid level.
[0010] The bottom of the cylinder is arranged on a mounting base plate through a support plate, and is mounted in the cooling tank body through the mounting base plate.
[0011] The roller conveyor device comprises a plurality of rollers, the transmission device is installed outside the cooling tank body, the rollers are connected via roller chains, and the rollers are installed inside the cooling tank body.
[0012] A plurality of steel profiled holes on the profiled plate body are interconnected to form an integral through hole.
[0013] The roller is provided with partitions, which divide the roller surface of the roller into a plurality of slots for the steel sections to pass through, so that the steel section workpiece can be transmitted in the longitudinal direction.
[0014] The number of spaces penetrating in the horizontal direction on the cylinder matches the number of the profiled holes of the profiled steel and the grooves on the rollers of the roller table.
[0015] The cooling trough body is provided with a trough cover, which is buckled on the upper part of the cooling trough body. The trough cover is provided with a chimney, which is installed on the trough cover close to the steel inlet.
[0016] A compressed air purge beam is installed in the cooling tank body, and the compressed air purge beam is installed in the rear return water section of the cooling tank body close to the steel outlet.
[0017] After hot-dip galvanizing, the steel workpiece enters the cooling trough through the steel inlet. The transmission device drives the roller conveyor to transport the steel workpiece longitudinally, passing through the front guide device, the front profiling plate, the rear guide device and the rear profiling plate in sequence; low-temperature cooling water enters the water filling section of the cooling trough through the water inlet, and forms high-temperature cooling water after heat exchange with the high-temperature steel workpiece. A part of it enters the return water section through the steel profiling holes on the front profiling plate and the rear profiling plate, and flows to the return water outlet; the other part merges with the return water outlet through the overflow port and flows back to the water tank; the high-temperature cooling water is transported to the cooler through the water pump, and the cooler realizes heat exchange between high-temperature cooling water and low-temperature circulating water to obtain low-temperature cooling water, which enters the cooling trough through the water inlet to realize the circulation of cooling water; the cooled steel workpiece leaves the cooling trough through the steel outlet to complete cooling.
[0018] The water vapor generated by cooling the steel workpiece is condensed through a chimney and then recycled.
[0019] The longitudinal direction described in the utility model is the length direction of the steel section.
[0020] The positive effects of the utility model are as follows: uniform and efficient cooling of the steel section is achieved through the longitudinal immersion cooling method, the time the steel section is exposed to the air is reduced, and the product quality is improved; the equipment complexity and the difficulty of process layout are reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a three-dimensional view of an embodiment of the utility model;
[0022] Figure 2 yes Figure 1 The main view;
[0023] Figure 3 yes Figure 1 A top view of
[0024] Figure 4 yes Figure 1 Left view of
[0025] Figure 5 The cooling water tank and the inner edge of the embodiment of the utility model Figure 4 Section view in the AA direction;
[0026] Figure 6 The cooling water tank and the inner edge of the embodiment of the utility model Figure 2 Cross-sectional view in the middle BB direction;
[0027] Figure 7 The cooling water tank and the inner edge of the embodiment of the utility model Figure 2 Cross-sectional view in CC direction;
[0028] Figure 8 The cooling water tank and the inner edge of the embodiment of the utility model Figure 2 Cross-sectional view in the middle DD direction;
[0029] Fig. 9 This utility model embodiment Figure 5 Magnified end view;
[0030] Fig.10 This utility model embodiment Figure 6 Magnified end view;
[0031] Fig.11 It is a schematic diagram of a profiling plate according to an embodiment of the utility model;
[0032] Fig.12 This is a schematic diagram of a guide device according to an embodiment of the utility model;
[0033] Fig.13 This is a three-dimensional diagram of the guide device of the embodiment of the utility model;
[0034] In the figure: cooling trough body 1, front profiling plate 2, front guide device 3, roller 4, water inlet 5, return water outlet 6, overflow port 7, transmission device 8, water tank 9, water pump 10, cooler 11, trough cover 12, chimney 13, compressed air purge beam 14, rear profiling plate 15, rear guide device 16, steel inlet 17, partition 18, slot 19, cylinder 20, upper partition 21, longitudinal partition 22, steel guide outlet 23, lower partition 24, support plate 25, steel guide inlet 26, installation base plate 27, profiling plate body 28, steel profiling hole 29. DETAILED DESCRIPTION
[0035] The present invention will be further described below through embodiments in conjunction with the accompanying drawings.
[0036] A longitudinal water-penetrating cooling device for steel sections comprises a cooling trough body 1, a transmission device 8, a water tank 9, a water pump 10 and a cooler 11. A roller conveyor for conveying steel sections is arranged in the cooling trough body 1, and the roller conveyor is driven by the transmission device 8. A water inlet 5 and a water return port 6 are arranged on the cooling trough body 1. The water outlet pipe at the lower part of the water tank 9 is connected to the water inlet 5 through the water pump 10 and the cooler 11, and the water return port 6 is connected to the water return pipe at the upper part of the water tank 9; a steel section inlet 17 and a steel section outlet are respectively arranged at the front and rear ends of the cooling trough body 1; a steel section workpiece enters the cooling trough body through the steel section inlet, and the transmission device drives the roller conveyor to transport the steel section workpiece longitudinally, and cooling is achieved by the cooling water in the cooling trough body; the cooled steel section workpiece leaves the cooling trough body through the steel section outlet.
[0037] The front end of the roller conveyor device inside the cooling trough 1 is sequentially provided with a front guide device 3 and a front profiling plate 2 along the moving direction of the profiled steel, and the rear end of the roller conveyor device is sequentially provided with a rear guide device 16 and a rear profiling plate 15 along the moving direction of the profiled steel; the front guide device 3 and the rear guide device 16 have the same structure, both of which include a cylinder 20, an upper partition 21, a longitudinal partition 22 and a lower partition 24, and the cylinder 20 is divided into a plurality of horizontally penetrating spaces by a plurality of longitudinal partitions 22, and a horizontal profiled steel channel is formed in the space by the upper partition 21 and the lower partition 24, and the profiled steel channel is in a trumpet shape, and the profiled steel guide inlet 26 of the profiled steel channel is relatively wide, and the profiled steel guide outlet 23 is relatively narrow, and the shape of the profiled steel guide outlet 23 is consistent with the cross-sectional shape of the profiled steel to be cooled. Match; the front profiling plate 2 and the rear profiling plate 15 have the same structure, both of which have a number of horizontally arranged steel profiling holes 29 on the profiling plate body 28, and the steel profiling holes 29 match the shape of the steel guide outlet 23, and the steel profiling holes 29 are close to the steel guide outlet 23, which is convenient for the steel to pass through; the front profiling plate 2 and the rear profiling plate 15 are arranged perpendicular to the moving direction of the steel, and the interior of the cooling trough body 1 is divided into three areas, the area between the front profiling plate 2 and the rear profiling plate 15 is the water filling section, the area between the front profiling plate 2 and the steel inlet 17 is the front return water section, and the area between the rear profiling plate 15 and the steel outlet is the rear return water section, a plurality of water inlets 5 are arranged on the side wall of the cooling trough body 1 water filling section, and a plurality of return water ports 6 are respectively arranged at the bottom of the cooling trough body 1 at the front and rear return water sections.
[0038] The water tank 9 , the water pump 10 and the cooler 11 are arranged outside the cooling tank body 1 .
[0039] The cooling trough body 1 is provided with an overflow port 7 , which is arranged on the side wall of the water filling section of the cooling trough body 1 , close to the steel section inlet 17 .
[0040] The front guide device 3 and the rear guide device 16 are used to ensure that the steel workpiece can pass through the front profiling plate 2 and the rear profiling plate 15; the front profiling plate 2 and the rear profiling plate 15 mainly function to ensure that the cooling liquid level can be established in the cooling trough body 1 so that the steel workpiece is below the cooling liquid level.
[0041] The bottom of the cylinder 20 is arranged on a mounting base plate 27 via a support plate 25 , and is mounted in the cooling tank body 1 via the mounting base plate 27 .
[0042] The roller conveyor device comprises a plurality of rollers 4 , the transmission device 8 is installed outside the cooling trough body 1 , and is connected to the rollers 4 via a roller chain, and the rollers 4 are installed inside the cooling trough body 1 .
[0043] The plurality of steel profiled holes 29 on the profiled plate body 28 are interconnected to form an integral through hole.
[0044] The roller 4 is provided with a partition 18, which divides the roller surface of the roller into a plurality of grooves 19 for the steel sections to pass through, so that the steel sections can be transported in the longitudinal direction.
[0045] The number of spaces penetrating in the horizontal direction on the cylinder 20 matches the number of the profiled holes 29 of the profiled steel and the grooves 19 on the roller 4 .
[0046] The cooling trough body 1 is provided with a trough cover 12 , which is buckled on the upper part of the cooling trough body 1 . The trough cover 12 is provided with a chimney 13 , which is installed on the trough cover 12 near the steel inlet 17 .
[0047] A compressed air purge beam 14 is installed in the cooling trough body 1 , and the compressed air purge beam 14 is installed in the rear return water section of the cooling trough body 1 close to the steel outlet.
[0048] The steel workpiece in this embodiment is an angle steel. The transmission device 8 rotates the motor, and drives the multiple sets of rollers 4 to rotate through the roller chain, so as to realize the longitudinal transmission of the steel workpiece. The front guide device 3 and the rear guide device 16 are respectively installed on the entrance side of the front profiling plate 2 and the rear profiling plate 15, so that the steel workpiece can pass through accurately. The steel profiling holes 29 on the front profiling plate 2 and the rear profiling plate 15 are consistent with the cross-sectional shape of the steel workpiece, and the size is slightly larger.
[0049] The low-temperature cooling water enters the water filling section of the cooling tank body 1 through the water inlet 5, and forms high-temperature cooling water after heat exchange with the high-temperature steel workpiece. A part of the cooling water enters the return water section through the steel profiling holes 29 on the front profiling plate 2 and the rear profiling plate 15, and flows to the return water port 6; the other part of the cooling water flows back to the water tank 9 through the overflow port 7 and the return water port 6.
[0050] The high-temperature cooling water is transported to the cooler 11 through the water pump 10. The cooler 11 realizes heat exchange between the high-temperature cooling water and the low-temperature circulating water to obtain low-temperature cooling water, which enters the cooling tank body 1 through the water inlet 5 to realize the circulation of cooling water.
[0051] The positions of the front profiling plate 2 and the rear profiling plate 15 are adjustable to adjust the size of the water-filled section in the cooling trough body 1; the sizes of the profiled steel holes on the front profiling plate 2 and the rear profiling plate 15 are adjustable to control the flow and distribution of cooling water by adjusting the aperture size of the profiled steel holes, thereby further optimizing the cooling effect.
[0052] The water vapor generated by cooling the steel workpiece is condensed through the chimney 13 and then recycled.
[0053] The utility model is provided with a temperature monitoring device and an automatic control system, which monitors the water temperature in the cooling water tank and the temperature of the steel workpiece in real time, and automatically adjusts the circulating water volume and the roller speed according to the set value to realize accurate cooling effect control.
[0054] After the steel workpiece enters the cooling trough, the cooling time and cooling temperature are set and determined according to the processing information of the steel workpiece, and the cooling time is ensured by controlling the speed of the roller. A steel workpiece temperature measuring device is provided at the steel inlet and the steel outlet of the cooling trough. By detecting the temperature of the steel workpiece entering and leaving the cooling trough, the roller speed, the cooling water volume and the circulating water volume are dynamically corrected to ensure that the steel workpiece completes the cooling process according to the cooling model.
[0055] The roller conveyor can be chain-type or belt-type transmission; the front profiling plate 2 and the rear profiling plate 15 can be made of different materials and processes to improve durability and precision.
Claims
1. A longitudinal water cooling device for steel sections, characterized in that: The invention comprises a cooling trough body (1), a transmission device (8), a water tank (9), a water pump (10) and a cooler (11). A roller conveyor device for conveying profiled steel is arranged in the cooling trough body (1), and the roller conveyor device is driven by the transmission device (8). A water inlet (5) and a water return port (6) are arranged on the cooling trough body (1). A water outlet pipe at the bottom of the water tank (9) is connected to the water inlet (5) through the water pump (10) and the cooler (11), and the water return port (6) is connected to the water return pipe at the top of the water tank (9). The front and rear ends of the cooling trough body (1) are respectively provided with a profiled steel inlet (17) and a profiled steel outlet. The profiled steel workpiece enters the cooling trough body through the profiled steel inlet, and the transmission device drives the roller conveyor device to convey the profiled steel workpiece in the longitudinal direction, and the profiled steel workpiece is cooled by the cooling water in the cooling trough body. The cooled profiled steel workpiece leaves the cooling trough body through the profiled steel outlet.
2. A longitudinal water cooling device for steel sections according to claim 1, characterized in that: A front guide device (3) and a front profiling plate (2) are sequentially arranged at the front end of the roller conveyor device inside the cooling trough (1) along the moving direction of the profiled steel, and a rear guide device (16) and a rear profiling plate (15) are sequentially arranged at the rear end of the roller conveyor device along the moving direction of the profiled steel. The front guide device (3) and the rear guide device (16) have the same structure, both comprising a cylinder (20), an upper partition (21), a longitudinal partition (22) and a lower partition (24). The cylinder (20) is divided into a plurality of horizontally penetrating spaces by a plurality of longitudinal partitions (22). A horizontal profiled steel channel is formed in the space by the upper partition (21) and the lower partition (24). The profiled steel channel is in a bell-mouth shape. The profiled steel guide inlet (26) of the profiled steel channel is relatively wide, and the profiled steel guide outlet (23) is relatively narrow. The shape of the profiled steel guide outlet (23) matches the cross-sectional shape of the profiled steel to be cooled. The front profiling plate (2) and the rear profiling plate (15) have the same structure, and both have a plurality of horizontally arranged steel profiling holes (29) formed on the profiling plate body (28). The steel profiling holes (29) match the shape of the steel guide outlet (23). The steel profiling holes (29) are close to the steel guide outlet (23) to facilitate the passage of the steel. The front profiling plate (2) and the rear profiling plate (15) are arranged perpendicular to the moving direction of the steel, and the interior of the cooling trough body (1) is divided into three areas. The area between the front profiling plate (2) and the rear profiling plate (15) is a water filling section, the area between the front profiling plate (2) and the steel inlet (17) is a front water return section, and the area between the rear profiling plate (15) and the steel outlet is a rear water return section. A plurality of water inlets (5) are arranged on the side wall of the water filling section of the cooling trough body (1), and a plurality of water return ports (6) are respectively arranged at the bottom of the cooling trough body (1) at the front and rear water return sections.
3. The longitudinal water cooling equipment for steel sections according to claim 2 is characterized in that: The bottom of the cylinder (20) is arranged on a mounting base plate (27) via a support plate (25), and is mounted in the cooling tank body (1) via the mounting base plate (27).
4. A longitudinal water cooling device for steel sections according to claim 1 or 2, characterized in that: The roller conveyor device comprises a plurality of rollers (4); the transmission device (8) is mounted on the outside of the cooling trough body (1) and connected to the rollers (4) via a roller chain; and the rollers (4) are mounted inside the cooling trough body (1).
5. The longitudinal water cooling equipment for steel sections according to claim 2 is characterized in that: A plurality of steel profiled holes (29) on the profiled plate body (28) are interconnected to form an integral through hole.
6. A longitudinal water cooling device for steel sections according to claim 1 or 2, characterized in that: The cooling trough body (1) is provided with a trough cover (12), the trough cover (12) is buckled on the upper part of the cooling trough body (1), and the trough cover (12) is provided with a chimney (13), and the chimney (13) is installed on the trough cover (12) near the steel inlet (17).
7. A longitudinal water cooling device for steel sections according to claim 1 or 2, characterized in that: A compressed air purge beam (14) is installed in the cooling trough body (1), and the compressed air purge beam (14) is installed in a rear return water section close to a steel section outlet in the cooling trough body (1).