Rolled steel coil water spraying rapid cooling device
By setting nozzles on the upper and lower sides of the steel coil for double-sided cooling, and using the combined design of lifting components and wiping components, the problem of poor cooling effect of existing devices is solved, rapid cooling and efficient drying are achieved, and production efficiency is improved.
Patent Information
- Application Number
- CN202422714369.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-07
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-11-07
Smart Images
Figure CN223405665U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rolled steel coils, in particular to a water spraying rapid cooling device for rolled steel coils. Background Art
[0002] Rolled steel coils are rolled steel products produced through a rolling process and are primarily categorized into hot-rolled coils and cold-rolled coils. The production process for hot-rolled coils involves three stages: heating, rolling, and cooling. The steel billet is first heated to the appropriate rolling temperature, then rolled multiple times on a rolling mill. Finally, the coil temperature is lowered by cooling. Existing cooling methods primarily include natural cooling, forced cooling, and slow cooling, with natural cooling and forced cooling being the most commonly used. Natural cooling includes air cooling and pile cooling. Air cooling involves cooling the hot-rolled steel in the air, typically on a cooling bed. Pile cooling involves cooling the steel in the air after a short period of time on the cooling bed, where it is then piled and cooled naturally in the air, slowing the cooling rate. Forced cooling methods include blower cooling, water mist cooling, air-water mixed cooling, and various water cooling methods.
[0003] After rolling, the temperature of the finished steel coil is generally between 550-750°C. To meet production requirements, the temperature needs to be rapidly lowered. Therefore, existing rolled steel coils are typically cooled using water. Water spray rapid cooling devices typically use only one nozzle to cool the coil, resulting in poor cooling effect and low cooling efficiency. Furthermore, after cooling, the moisture in the coil must be removed through natural air drying, which takes a considerable amount of time and affects industrial production efficiency. Utility Model Content
[0004] The purpose of the utility model is to provide a water spray rapid cooling device for steel coils with good cooling effect, high production efficiency and simple operation, so as to solve the technical problem that the existing device for cooling steel coils has poor cooling effect and low cooling efficiency, thereby leading to low industrial production efficiency.
[0005] In order to solve the above technical problems, the solutions adopted by the present invention are as follows:
[0006] A water spray rapid cooling device for steel coils for rolling steel, used for cooling the steel coils, comprising a cooling device, a cooling pipe, a conveying device, a lifting assembly, and a drying assembly; the cooling pipe is connected to the inner top of the cooling device; the conveying device is connected to the lifting assembly, and both are located inside the cooling device, and the conveying device adjusts its height through the lifting assembly to press the steel coil into the cooling device for cooling; the drying assembly is installed at the back of the cooling device; the cooling device comprises a rectangular bottom plate, a water pool, and a protective shell; the water pool is fixedly installed in the middle of the rectangular bottom plate; the protective shell is fixedly installed on the top of the water pool;
[0007] The cooling pipe includes pipe 1, pipe 2 and pipe 3; one end of pipe 2 extends into the water pool, and the other end is provided with a water pump; the bottom end of pipe 1 is connected to the top of the water pump, the top end passes through the protective shell and extends into the upper end of the water pool, and is provided with a nozzle 1; one end of pipe 3 is connected to the water pump, and the other end extends into the water pool, and is provided with a nozzle 2; the water pump is connected to the water pool through pipe 2, and transports water in the water pool to pipe 1 and pipe 3, and cools the upper side of the steel coil through the nozzle pair at the other end of pipe 1, and the nozzle 2 of pipe 3 cools the lower side of the steel coil. The water after cooling the steel coil falls into the water pool for recycling; there are two drying components, which are symmetrically installed on the back of the water pool; the drying component includes a connecting limit device and a brush plate; the two connecting limit devices are fixedly installed on the water pool and the protective shell respectively; the brush plate is fixedly connected to the connecting limit device, and the steel coil is dried by the brush plate after cooling.
[0008] Furthermore, the conveying device includes roller shaft 1, roller 1, roller shaft 2, and roller 2. The ends of roller 1 are connected to the inner wall of the water pool via roller shaft 1, and two rollers are provided, one mounted at the front end and the other at the rear end of the water pool, to facilitate the transport of steel coils. The ends of roller 2 are connected to the inner wall of the middle portion of the water pool via roller shaft 2. The lifting device is provided with a rotating groove, which is connected to roller shaft 2 via the rotating groove. Roller 1 rotates via roller shaft 1, and roller 2 rotates via roller shaft 2 to transport the steel coils. The lifting device drives roller 2 up and down via the rotating groove and roller shaft 2, thereby pressing the steel coils down into the water pool for cooling, thereby improving cooling efficiency.
[0009] Furthermore, the lifting device includes a motor, a guide wheel, a rotating shaft, and a limiting device; the motor is fixedly mounted on the outside of the pool, with its output end passing through the pool and fixedly connected to the rotating shaft, which is powered by an external power supply; the rotating shaft is fixedly connected to the inner side of the guide wheel, and drives the guide wheel to rotate via the rotating shaft; the rotating groove is located on the outer side of the guide wheel; the second roller shaft is connected to the guide wheel via the rotating groove; and the limiting device is connected to the second roller shaft. The motor drives the rotating shaft to rotate, thereby driving the guide wheel to rotate, causing the second roller shaft to rotate through the rotating groove. The rotating shaft is fixed in an eccentric position of the guide wheel, thereby driving the second roller shaft in the rotating groove outside the guide wheel to move within the rotating groove.
[0010] Furthermore, the limiting device includes a limiting plate 1, a column 1, a limiting plate 2, a limiting plate 3, and a limiting plate 4; the limiting plate 1 is connected to the roller shaft 2; the column 1 passes through the limiting plate 2, with its bottom end connected to the limiting plate 1 and its top end connected to the limiting plate 4; one end of the limiting plate 3 is fixedly connected to the inner wall of the pool, and the other end is fixedly connected to the limiting plate 2; the column 1 and the limiting plate 2 are slidably connected. The roller shaft 2 drives the column 1 to slide within the limiting plate 2 through the limiting plate 1, causing the roller 2 to move linearly upward or downward. The limiting plate 2 is fixedly mounted on the inner wall of the pool through the limiting plate 3. The column 1 is limited by the limiting plate 4 to prevent the column 1 from separating from the limiting plate 2.
[0011] Furthermore, the connection and limiting device includes a limiting plate 5, a column 2, a limiting plate 6, a limiting plate 7, and a spring; one limiting plate 5 is fixedly connected to the bottom end of the pool, and the other limiting plate 5 is fixedly connected to the upper end of the protective shell; one end of the column 2 is fixedly connected to the limiting plate 5, and the other end is connected to the limiting plate 6; the limiting plate 7 is connected to the brush plate; and the two ends of the spring are respectively connected to the limiting plate 6 and the limiting plate 7. The limiting plate 5 is connected to the limiting plate 6 through the column 2, and the limiting plate 7 is fixedly installed on the brush plate. A spring is installed between the limiting plate 6 and the limiting plate 7. The height of the brush plate can be adjusted by the spring so that the brush plate fits tightly with the steel coil for drying.
[0012] Furthermore, the connection and limiting device comprises a third column, a fourth column, a limiting plate eight, and a ninth limiting plate. The fourth column is provided with two, with the bottom end connected to the brush plate and the top end connected to the eighth limiting plate. The ninth limiting plate is sleeved onto the fourth column. The fourth column is connected to both sides of the second column via the third column and the ninth limiting plate. When the brush plate is driven by the spring, the fourth column slides within the ninth limiting plate. The ninth limiting plate is fixed to the second column via the third column. The ninth limiting plate and the fourth limiting plate act as a limit on the movement of the brush plate, preventing the brush plate from deviating from the track.
[0013] Furthermore, the cooling pipe is equipped with a blower and a fourth pipe. The blower is located to the right rear of the sink and fixedly connected to the rectangular bottom plate. One end of the fourth pipe is connected to the blower, and the other end passes through the protective shell and extends into the interior. The fourth pipe directs the air produced by the blower into the protective shell, blowing air on the cooled steel coils for initial drying and drainage, avoiding the need for subsequent natural drying, thereby improving the efficiency of steel rolling and coil production.
[0014] The working principle of this utility model is as follows:
[0015] During use, the steel coil is transported into the cooling device through rollers 1 and 2, and the water in the pool is pumped into the cooling pipe by a water pump. Then, the water is guided to nozzles 1 and 2 through pipes 1 and 3 of the cooling pipe, so as to cool the upper and lower sides of the steel coil at the same time. The cooled water flows back to the pool along the surface of the steel coil, and at the same time, the motor of the lifting device drives the rotating shaft to rotate, thereby driving the guide wheel to rotate, so that the roller shaft 2 rotates through the rotating groove. The rotating shaft is fixed in the eccentric position of the guide wheel, thereby driving the roller in the rotating groove outside the guide wheel. Axis two moves up and down in the rotating trough to adjust the height of the steel coil so that it is completely immersed in water, ensuring that the steel coil is in full contact with the cooling water to achieve a rapid cooling effect. When the steel coil is cooled to the required temperature, the conveyor moves it out of the cooling area. The hair dryer introduces wind into the protective shell through pipe four to perform a preliminary drying of the steel coil. The brush plate of the drying component then contacts the surface of the steel coil to remove surface moisture. The limit device is connected to ensure that the brush plate fits tightly against the steel coil, ensuring the drying effect, reducing the subsequent cooling time, and thereby improving production efficiency.
[0016] The beneficial effects of the utility model are as follows:
[0017] 1. The utility model sets nozzle 1 and nozzle 2 on the upper side and lower side of the steel coil respectively for cooling, thereby realizing rapid cooling of both sides of the steel coil. The cooled water falls back into the water pool for recycling, reducing resource waste. The steel coil is dried by the drying component, thereby improving the overall production efficiency.
[0018] 2. The utility model limits the roller shaft 2 of the roller 2 through the limiting device, so that the roller 2 moves linearly upward or downward, and limits the brush plate by connecting the limiting device, so that the brush plate is not easy to deviate from the track, so as to wipe the moisture on the steel coil, and avoid the brush plate deviating from the steel coil, resulting in residual moisture on the steel coil and reducing work efficiency.
[0019] 3. The utility model drives the roller shaft 2 to move through the lifting assembly, thereby driving the roller 2 to move upward or downward in a linear motion. While the steel coil is cooled by the sprayed cooling water, when the roller 2 is driven downward, the conveyed steel coil is pressed downward, so that the steel coil is immersed in the water pool, thereby improving the cooling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic diagram of the main structure of the utility model;
[0021] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;
[0022] Figure 3 This is a schematic structural diagram of the conveying device of the present utility model;
[0023] Figure 4This is a schematic diagram of the lifting assembly structure of the utility model;
[0024] Figure 5 This is a schematic structural diagram of the drying component of the present invention.
[0025] Figure: 1. Cooling device; 101. Rectangular base plate; 102. Water tank; 103. Protective shell; 104. Steel coil; 105. Water pump; 2. Cooling pipe; 201. Pipeline 1; 202. Pipeline 2; 203. Pipeline 3; 204. Blower; 205. Pipeline 4; 211. Nozzle 1; 212. Nozzle 2; 3. Conveyor; 301. Roller shaft 1; 302. Roller 1; 303. Roller shaft 2; 304. Roller 2; 4. Lifting assembly; 401 , motor; 402, guide wheel; 403, rotating shaft; 404, limit plate one; 405, column one; 406, rotating groove; 407, limit plate two; 408, limit plate three; 409, limit plate four; 5, drying component; 501, limit plate five; 502, column two; 503, limit plate six; 504, limit plate seven; 505, spring; 506, brush plate; 511, column three; 512, column four; 513, limit plate eight; 514, limit plate nine. DETAILED DESCRIPTION
[0026] 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 embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0027] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or integrally connected; they can be mechanically connected or electrically connected; they can be directly connected or indirectly connected through an intermediate medium, or they can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0028] The following is a detailed description of the water spraying rapid cooling device for steel coils according to the present invention in conjunction with the accompanying drawings: Example
[0029] A water spray rapid cooling device for a rolled steel coil, used for cooling a steel coil 104, comprising a cooling device 1, a cooling pipe 2, a conveying device 3, a lifting assembly 4 and a drying assembly 5; the cooling pipe 2 is connected to the internal top of the cooling device 1; the conveying device 3 is connected to the lifting assembly 4, and both are located inside the cooling device 1; the drying assembly 5 is installed on the back of the cooling device 1; the cooling device 1 comprises a rectangular bottom plate 101, a water pool 102 and a protective shell 103; the water pool 102 is fixedly installed in the middle of the rectangular bottom plate 101; the protective shell 103 is fixedly installed at the top of the water pool 102; the cooling pipe 2 comprises a pipe 1 201, a pipe 2 202 and a pipe 3 203; the pipe 2 One end of pipe 202 extends into the interior of the water pool 102, and the other end is provided with a water pump 105; the bottom end of pipe 1 201 is connected to the top of the water pump 105, the top end passes through the protective shell 103, and extends into the upper end of the water pool 102, and is provided with a nozzle 1 211; one end of pipe 3 203 is connected to the water pump 105, and the other end extends into the interior of the water pool 102, and is provided with a nozzle 2 212; there are two drying components 5, which are symmetrically installed on the back of the water pool 102; the drying component 5 includes a connection limit device and a brush plate 506; the two connection limit devices are respectively fixedly installed on the water pool 102 and the protective shell 103; the brush plate 506 is fixedly connected to the connection limit device.
[0030] The working principle of this embodiment is as follows:
[0031] During use, the steel coil 104 is transported into the water pool 102 of the cooling device 1 by the conveying device 3, and the water in the water pool 102 is pumped into the cooling pipe 2 by the water pump 105, and then the water is guided to the nozzle 1 211 and the nozzle 2 212 through the pipe 1 201 and the pipe 3 203 of the cooling pipe 2, so as to achieve simultaneous cooling of the upper and lower sides of the steel coil 104, and the cooled water flows back to the water pool 102 along the surface of the steel coil 104. At the same time, the conveying device 3 is driven up and down by the lifting device 4 to adjust the height of the steel coil 104 so that it is completely immersed in the water, ensuring that the steel coil 104 is fully in contact with the cooling water to achieve the effect of rapid cooling. When the steel coil is cooled to the required temperature, the conveying device 3 moves it out of the cooling area, and the brush plate of the drying component 5 contacts the surface of the steel coil 104 to remove the moisture on the surface, and the limiting device is connected to ensure that the brush plate 506 is tightly fitted with the steel coil 104 to ensure the drying effect, reduce the subsequent cooling time, and thus improve production efficiency. Example
[0032] The difference from Example 1 is that the conveying device 3 includes a roller shaft 1 301, a roller 1 302, a roller shaft 2 303, and a roller 2 304; the two ends of the roller 1 302 are connected to the inner wall of the pool 102 through the roller shaft 1 301, and two rollers are provided, respectively installed at the front and rear ends of the pool 102; the two ends of the roller 2 304 are connected to the middle inner wall of the pool 102 through the roller shaft 2 303; the lifting device 4 is provided with a rotation groove 406; the lifting device 4 is connected to the roller shaft 2 303 through the rotation groove 406;
[0033] The lifting device 4 includes a motor 401, a guide wheel 402, a rotating shaft 403, and a limiting device; the motor 401 is fixedly installed outside the water pool 102, and the output end passes through the water pool 102 and is fixedly connected to the rotating shaft 403; the rotating shaft 403 is fixedly connected to the inner side of the guide wheel 402; the rotating groove 406 is located on the outer side of the guide wheel 402; the second roller shaft 303 is connected to the guide wheel 402 through the rotating groove 406; and the limiting device is connected to the second roller shaft 303;
[0034] The limiting device includes a limiting plate 1 404, a column 1 405, a limiting plate 2 407, a limiting plate 3 408 and a limiting plate 4 409; the limiting plate 1 404 is connected to the roller shaft 2 303; the column 1 405 passes through the limiting plate 2 407, the bottom end is connected to the limiting plate 1 404, and the top end is connected to the limiting plate 4 409; one end of the limiting plate 3 408 is fixedly connected to the inner wall of the pool 102, and the other end is fixedly connected to the limiting plate 2 407; the column 1 405 and the limiting plate 2 407 are slidably connected.
[0035] The roller 1 302 rotates through the roller shaft 1 301, and the roller 2 304 rotates through the roller shaft 2 303 to transport the steel coil 104. The motor 401 of the lifting device 4 drives the rotating shaft 403 to rotate, thereby driving the guide wheel 402 to rotate, causing the roller shaft 2 303 to rotate through the rotating groove 406. The rotating shaft 403 is fixed at the eccentric position of the guide wheel 402, thereby driving the roller shaft 2 303 in the rotating groove 406 outside the guide wheel 402 to move in the rotating groove 406, so that the roller shaft 2 30 3 drives roller 2 304 to rise and fall, and roller shaft 2 303 drives column 1 405 to slide in limit plate 2 407 through limit plate 1 404, so that roller 2 304 moves linearly upward or downward, thereby pressing the steel coil 104 down into the water pool 102 for cooling and improving cooling efficiency. Limit plate 2 407 is fixedly installed on the inner wall of the water pool 102 through limit plate 3 408, and column 1 405 is limited by limit plate 409 to prevent column 1 405 from escaping from limit plate 2 407.
[0036] The working principle of this embodiment is the same as that of embodiment 1. Example
[0037] The difference from Example 2 is that the connection limit device includes a limit plate five 501, a column two 502, a limit plate six 503, a limit plate seven 504 and a spring 505; one limit plate five 501 is fixedly connected to the bottom end of the water pool 102, and the other limit plate five 501 is fixedly connected to the upper end of the protective shell 103; one end of the column two 502 is fixedly connected to the limit plate five 501, and the other end is connected to the limit plate six 503; the limit plate seven 504 is connected to the brush plate 506; and the two ends of the spring 505 are respectively connected to the limit plate six 503 and the limit plate seven 504.
[0038] The connecting and limiting device is provided with column three 511, column four 512, limiting plate eight 513 and limiting plate nine 514; the column four 512 is provided with two, and the bottom end is connected to the brush plate 506, and the top end is connected to the limiting plate eight 513; the limiting plate nine 514 is sleeved on the column four 512; the column four 512 is connected to both sides of the column two 502 through the column three 511 and the limiting plate nine 514.
[0039] The limit plate five 501 is connected through the column two 502 and the limit plate six 503, and the limit plate seven 504 is fixedly installed on the brush plate 506. A spring 505 is installed between the limit plate six 503 and the limit plate seven 504. The height of the brush plate 506 can be adjusted by the spring 505, so that the brush plate 506 and the steel coil 104 are closely fitted to perform drying work; when the spring 505 drives the brush plate 506 to move, the column four 512 slides in the limit plate nine 514, and the limit plate nine 514 is fixedly installed on the column two 502 through the column three 511, and the movement of the brush plate 506 is limited by the limit plate nine 514 and the column four 512, so that the brush plate 506 is not easily deviated from the track.
[0040] The working principle of this embodiment is the same as that of embodiment 2. Example
[0041] The difference from Example 3 is that the cooling pipe 2 is equipped with a blower 204 and a fourth pipe 205. The blower 204 is located to the right rear of the water tank 102 and is fixedly connected to the rectangular base plate 101. One end of the fourth pipe 205 is connected to the blower 204, and the other end passes through the protective shell 103 and extends into the interior. The fourth pipe 205 directs the air produced by the blower 204 into the interior of the protective shell 103, blowing air on the cooled steel coil 104 for initial drying and drainage, avoiding the need for subsequent natural drying and improving the efficiency of steel coil production.
[0042] The working principle of this embodiment is the same as that of embodiment 3.
[0043] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A water spraying rapid cooling device for a rolled steel coil, for cooling a steel coil (104), characterized in that: The invention comprises a cooling device (1), a cooling pipe (2), a conveying device (3), a lifting assembly (4) and a drying assembly (5); the cooling pipe (2) is connected to the inner top of the cooling device (1); the conveying device (3) is connected to the lifting assembly (4), and both are located inside the cooling device (1); the drying assembly (5) is installed on the back of the cooling device (1); The cooling device (1) comprises a rectangular bottom plate (101), a water pool (102) and a protective shell (103); the water pool (102) is fixedly mounted in the middle of the rectangular bottom plate (101); and the protective shell (103) is fixedly mounted on the top of the water pool (102); The cooling pipe (2) includes pipe 1 (201), pipe 2 (202) and pipe 3 (203); one end of pipe 2 (202) extends into the interior of the water pool (102), and the other end is provided with a water pump (105); the bottom end of pipe 1 (201) is connected to the top of the water pump (105), the top end passes through the protective shell (103), and extends into the upper end of the water pool (102), and is provided with a nozzle 1 (211); one end of pipe 3 (203) is connected to the water pump (105), the other end extends into the interior of the water pool (102), and is provided with a nozzle 2 (212); The drying components (5) are provided with two and are symmetrically mounted on the back of the water pool (102); the drying components (5) include a connection limit device and a brush plate (506); the two connection limit devices are fixedly mounted on the water pool (102) and the protective shell (103), respectively; the brush plate (506) is fixedly connected to the connection limit device.
2. The water spraying rapid cooling device for steel coils according to claim 1, characterized in that: The conveying device (3) includes a roller shaft 1 (301), a roller 1 (302), a roller shaft 2 (303) and a roller 2 (304); the two ends of the roller 1 (302) are connected to the inner wall of the pool (102) through the roller shaft 1 (301), and two rollers are provided, which are respectively installed at the front end and the rear end of the pool (102); the two ends of the roller 2 (304) are connected to the inner wall of the middle part of the pool (102) through the roller shaft 2 (303); the lifting device (4) is provided with a rotating groove (406); the lifting device (4) is connected to the roller shaft 2 (303) through the rotating groove (406).
3. The water spraying rapid cooling device for steel coils according to claim 2, characterized in that: The lifting device (4) comprises a motor (401), a guide wheel (402), a rotating shaft (403) and a limiting device; the motor (401) is fixedly mounted on the outside of the water pool (102), and the output end passes through the water pool (102) and is fixedly connected to the rotating shaft (403); the rotating shaft (403) is fixedly connected to the inner side of the guide wheel (402); the rotating groove (406) is located on the outer side of the guide wheel (402); the second roller shaft (303) is connected to the guide wheel (402) through the rotating groove (406); and the limiting device is connected to the second roller shaft (303).
4. The water spraying rapid cooling device for rolled steel coil according to claim 3, characterized in that: The limiting device includes a limiting plate 1 (404), a column 1 (405), a limiting plate 2 (407), a limiting plate 3 (408) and a limiting plate 4 (409); the limiting plate 1 (404) is connected to the roller shaft 2 (303); the column 1 (405) passes through the limiting plate 2 (407), the bottom end of which is connected to the limiting plate 1 (404), and the top end of which is connected to the limiting plate 4 (409); one end of the limiting plate 3 (408) is fixedly connected to the inner wall of the pool (102), and the other end is fixedly connected to the limiting plate 2 (407); the column 1 (405) and the limiting plate 2 (407) are slidably connected.
5. The water spraying rapid cooling device for steel coils according to claim 1, characterized in that: The connection limit device includes a limit plate five (501), a column two (502), a limit plate six (503), a limit plate seven (504) and a spring (505); one limit plate five (501) is fixedly connected to the bottom end of the pool (102), and the other limit plate five (501) is fixedly connected to the upper end of the protective shell (103); one end of the column two (502) is fixedly connected to the limit plate five (501), and the other end is connected to the limit plate six (503); the limit plate seven (504) is connected to the brush plate (506); and the two ends of the spring (505) are respectively connected to the limit plate six (503) and the limit plate seven (504).
6. The water spraying rapid cooling device for steel coils according to claim 5, characterized in that: The connection and limiting device is provided with a column three (511), a column four (512), a limiting plate eight (513) and a limiting plate nine (514); the column four (512) is provided with two, and the bottom end is connected to the brush plate (506), and the top end is connected to the limiting plate eight (513); the limiting plate nine (514) is sleeved on the column four (512); the column four (512) is connected to both sides of the column two (502) through the column three (511) and the limiting plate nine (514).
7. The water spraying rapid cooling device for rolled steel coil according to claim 1, characterized in that: The cooling pipe (2) is provided with the blower (204) and the pipe four (205); the blower (204) is located at the right rear of the pool (102) and is fixedly connected to the rectangular bottom plate (101); one end of the pipe four (205) is connected to the blower (204), and the other end passes through the protective shell (103) and extends into the interior.