A hot-rolling laminar cooling system with a water collecting device
Patent Information
- Application Number
- CN202521708624.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-11
- Publication Date
- 2026-09-01
- Estimated Expiration
- 2035-08-11
AI Technical Summary
[0003]但是，侧喷水的水压大约1.2Mpa，其压力较大，导致侧喷水喷射到集水装置外沿之后，会反溅到层冷其他设备上；侧喷水喷射到集水装置内部，也能被反溅出来，影响现场生产环境
[0020]本申请有益效果如下：提供一种热轧层冷侧喷的集水装置，包括槽体和第一导板，槽体开设有位于周向一侧的集水口，集水口和热轧层流冷却系统的侧喷水嘴相对分布，从侧喷水嘴喷出的冷却水冷却带钢后，从集水口进入槽体内部，并从槽体的底板上的排水口集中排出，特别的是，本申请在集水口位置处安装了第一导板，第一导板连接于槽体的底板的上侧，槽体于集水口的边缘形成有围合边侧，围合边侧中位于底部的一侧为第一侧，第一导板从第一侧按照第一方向朝槽体的内部延展分布，第一方向与热轧层冷系统所涉及的带钢运行方向互成钝角或者锐角，喷至集水口的冷却水受到第一导板的阻挡，沿第一导板的板面进入槽体内部，在槽体内发生反溅的部分侧喷水会被第一导板阻挡，具有较好的集水效果，改善了反溅的侧喷水流到带钢表面和现场设备的问题，保护了现场生产环境，有利于现场生产的有序性和整洁性。
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Figure CN224700813U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of laminar flow cooling technology, and in particular to a water collection device for cold side spraying of hot rolled layers and a hot rolled laminar flow cooling system. Background Technology
[0002] Laminar flow cooling is a post-rolling online controlled cooling process for hot-rolled steel plates or strips, involving a side spraying mechanism. In the laminar flow cooling zone of hot-rolled coils, side spraying is used to blow away residual cooling water on the surface of the strip. The side spray nozzles are located on one horizontal side of the strip path, and a water collection device is arranged on the other horizontal side of the strip path to collect the cooling water sprayed from the side spray nozzles.
[0003] However, the water pressure of the side spray is about 1.2 MPa, which is relatively high. This causes the side spray water to splash back onto other equipment in the cooling system after it hits the outer edge of the water collection device. The side spray water can also splash back out when it hits the inside of the water collection device, affecting the on-site production environment. Utility Model Content
[0004] To address the aforementioned issues, this application provides a water collection device for cold-side spraying of hot-rolled layers and a hot-rolled laminar flow cooling system.
[0005] This application provides a water collection device for a hot-rolled strip cold side spray, including a tank and a first guide plate. The tank has a water collection port on one circumferential side and a drain port on the bottom plate. The water collection port is defined and distributed opposite to the side spray nozzles of the hot-rolled laminar flow cooling system. The tank has an enclosing side at the edge of the water collection port. The bottom side of the enclosing side is the first side. The first guide plate is connected to the upper side of the bottom plate of the tank. The first guide plate extends from the first side toward the interior of the tank in a first direction. The first direction forms an obtuse angle or an acute angle with the strip running direction involved in the hot-rolled strip cooling system.
[0006] In some embodiments, the water collection device for the cold side spray of the hot-rolled layer is provided with at least two first guide plates, which are parallel to each other and are distributed at intervals along the length direction of the first side.
[0007] In some implementations, the size of the first guide plate in the height direction of the tank is smaller than the size of the water inlet.
[0008] In some embodiments, the side of the enclosing edge located at the end of the strip in the running direction is the second side, and the water collection device for the cold side spray of the hot-rolled layer further includes:
[0009] The second guide plate is connected to the second side and extends from the second side toward the interior of the tank in a second direction, which is at an obtuse angle to the running direction of the strip.
[0010] In some implementations, the drain outlet is located on the bottom plate of the tank and is relatively far from the circumferential side where the water inlet is located.
[0011] In some implementations, the drain outlet is formed in the form of a louvered opening on the bottom plate of the tank.
[0012] In some embodiments, the tank body is also provided with a lower opening on the circumferential side where the water inlet is located. The lower opening is located below the water inlet and is lower than the bottom plate of the tank body.
[0013] The water collection device for the cold side spray of the hot-rolled layer also includes a baffle plate, which is connected to the bottom side of the tank and is opposite to the lower opening.
[0014] In some embodiments, the water collection device for the cold side spray of the hot-rolled layer also includes a third guide plate, with the lower opening on the side of the side formed by the trough where the end of the strip in the running direction is located, the third guide plate is connected to the third side, and the third guide plate extends from the third side toward the interior of the trough in a third direction, the third direction forming an obtuse angle with the running direction of the strip.
[0015] A hot-rolled laminar flow cooling system, comprising:
[0016] Multiple side spray nozzles are distributed sequentially and at intervals along the running direction of the strip, and are all located on one side of the strip's moving path;
[0017] The water collection devices for the cold side spray of the hot-rolled strip are all located on the other side of the strip movement path and correspond one-to-one with the multiple side spray nozzles.
[0018] Multiple layers of cold-resistant plates are located on opposite sides of the strip's moving path and are distributed sequentially along the strip's running direction. The multiple layers of cold-resistant plates located on the side where the water collection device for the hot-rolled layer's cold side spray is located are alternately connected to the multiple water collection devices for the hot-rolled layer's cold side spray.
[0019] In some embodiments, slots are provided on both sides of the tank, and the cooling plate passes through the slots and is connected to the tank by bolts.
[0020] The beneficial effects of this application are as follows: It provides a water collection device for the cold side spray of a hot-rolled strip, including a tank and a first guide plate. The tank has a water collection port located on one circumferential side. The water collection port and the side spray nozzles of the hot-rolled laminar flow cooling system are distributed opposite to each other. After the cooling water sprayed from the side spray nozzles cools the strip, it enters the tank from the water collection port and is discharged from the drain port on the bottom plate of the tank. In particular, this application installs a first guide plate at the location of the water collection port. The first guide plate is connected to the upper side of the bottom plate of the tank. The tank forms an enclosing side at the edge of the water collection port. The enclosing side is located at... One side of the bottom is the first side. The first guide plate extends from the first side toward the inside of the tank in a first direction. The first direction is at an obtuse or acute angle to the running direction of the strip involved in the hot rolling layer cooling system. The cooling water sprayed to the water collection port is blocked by the first guide plate and enters the tank along the surface of the first guide plate. The side spray water that splashes back into the tank is blocked by the first guide plate, which has a good water collection effect. This improves the problem of the splashed side spray water flowing to the surface of the strip and the equipment on site, protects the on-site production environment, and is conducive to the orderliness and cleanliness of on-site production. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of this utility model.
[0022] Figure 1 A schematic diagram of the overall structure of a water collection device for cold-side spraying of hot-rolled layers provided in this application;
[0023] Figure 2 A top view of a water collection device for cold-side spraying of hot-rolled layers provided in this application;
[0024] Figure 3 A front view of a water collection device for cold-side spraying of hot-rolled layers provided in this application;
[0025] Figure 4 A schematic diagram showing the relative positions of a water collection device for a hot-rolled layer cold side spray and a layer cooling guard plate, provided in this application;
[0026] Figure 5 A schematic diagram showing the connection between a water collection device for cold side spraying of a hot-rolled layer and a cold-rolled layer guard plate provided in this application;
[0027] Figure 6 This is a schematic diagram of a water collection device and a side spray nozzle for a hot-rolled layer cold side spray, provided in this application.
[0028] Attached diagram labels: 11-Tank body, 121-Water inlet, 122-Lower opening, 13-First guide plate, 14-Second guide plate, 15-Third guide plate, 2-Slot, 3-Water baffle, 4-Drain outlet, 5-Side spray nozzle, 6-Layer cold protection plate. Detailed Implementation
[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0030] Furthermore, reference numerals and / or reference letters may be repeated in different examples in this application. Such repetition is for simplification and clarity purposes and does not in itself indicate a relationship between the various embodiments and / or settings discussed. In addition, this application provides examples of various specific processes and materials; however, those skilled in the art will recognize the application of other processes and / or the use of other materials.
[0031] The side-spray water pressure is approximately 1.2 MPa, which is relatively high. After being sprayed onto the outer edge of the water collection device, it will splash back onto other equipment in the laminar flow cooling system. Even water sprayed into the water collection device can be splashed back out, affecting the on-site production environment. In addition, the water collection device is welded to the laminar flow cooling guard plate, which is prone to weld breakage after corrosion. If the water collection device is misaligned, personnel may collide with the strip head, posing a safety hazard.
[0032] Please refer to the reference. Figure 1 , Figure 2 and Figure 6 This application provides a water collection device for the cold side spray of a hot-rolled strip, including a tank body 11 and a first guide plate 13. The tank body 11 has a water collection port 121 located on one circumferential side, and a drain port 4 located on the bottom plate of the tank body 11. The water collection port 121 and the side spray nozzles 5 of the hot-rolled laminar flow cooling system are distributed opposite to each other. After the cooling water sprayed from the side spray nozzles 5 cools the strip, it enters the interior of the tank body 11 from the water collection port 121 and is discharged from the drain port 4 on the bottom plate of the tank body 11.
[0033] In particular, this application installs a first guide plate 13 at the water inlet 121. The first guide plate 13 is connected to the upper side of the bottom plate of the tank 11. The tank 11 forms an enclosing side at the edge of the water inlet 121. The bottom side of the enclosing side is the first side. The first guide plate 13 extends from the first side toward the interior of the tank 11 in a first direction. The first direction forms an obtuse or acute angle with the strip running direction involved in the hot rolling layer cooling system.
[0034] It should be noted that, please refer to Figure 2 , Figure 2 The diagram shows a first direction that forms an obtuse angle with the strip running direction involved in the hot-rolled layer cooling system. In this scheme, when the side spray water is sprayed from the strip to the water collection port 121, the side spray water will hit the first guide plate 13. The first guide plate 13 changes the flow direction of the side spray water. The side spray water enters the tank 11 along the first direction of the first guide plate 13. The part of the side spray water that enters the tank 11 will be discharged from the drain port 4. The part of the side spray water that enters the tank 11 flows to the back of the first guide plate 13 and will be blocked by the first guide plate 13.
[0035] The cooling water sprayed to the water collection port 121 is blocked by the first guide plate 13 and enters the tank 11 along the surface of the first guide plate 13. The side spray water that splashes back inside the tank 11 is blocked by the first guide plate 13, which has a better water collection effect. This improves the problem of the side spray water flowing back onto the strip steel surface and on-site equipment, protects the on-site production environment, and is conducive to the orderliness and cleanliness of on-site production.
[0036] In some embodiments, the water collection device for the cold-side spraying of the hot-rolled layer is provided with at least two first guide plates 13, please refer to the reference. Figure 1 , Figure 2 and Figure 3 At least two first guide plates 13 are parallel to each other and are distributed at intervals along the length of the first side. By increasing the number of first guide plates 13, the blocking effect of the first guide plates 13 on the splash side water spray is increased, further improving the water collection effect of this device.
[0037] In some implementation methods, please refer to Figure 1 or Figure 3 The size of the first guide plate 13 in the height direction of the tank 11 is smaller than the size of the water inlet 121, and the first guide plate 13 can block most of the splash water.
[0038] In some implementation methods, please refer to Figure 1 The second side is located on the side of the enclosure side where the end of the strip runs in the direction of travel. The water collection device for the cold side spray of the hot-rolled layer also includes a second guide plate 14. The second guide plate 14 is connected to the second side of the enclosure side and extends from the second side toward the interior of the tank 11 in a second direction, which forms an obtuse angle with the direction of travel of the strip. By setting the second guide plate 14, when the strip head is tilted upwards and scrapes against the device, the second guide plate 14 guides the strip head back to the correct strip movement path, avoiding the risk of accidents caused by the strip head getting stuck.
[0039] In some implementation methods, please refer to Figure 2 The drain outlet 4 is located on the bottom plate of the tank 11, and is relatively far from the circumferential side where the water collection outlet 121 is located. More specifically, please refer to... Figure 2 In some embodiments, the drain outlet 4 is opened on the bottom plate of the tank 11 in the form of louver holes. This arrangement of louver holes increases the drainage effect.
[0040] It should be noted that you should refer to the following: Figure 1 and Figure 2 The drain outlet 4 in the form of a louver needs to avoid the location of the first guide plate 13.
[0041] In some implementation methods, please refer to Figure 1 and Figure 3 The tank 11 also has a lower opening 122 on the circumferential side where the water inlet 121 is located. The lower opening 122 is located below the water inlet 121 and is lower than the bottom plate of the tank 11. The water collection device for the cold side spray of the hot rolled layer also includes a baffle plate 3, which is connected to the bottom side of the tank 11 and is opposite to the lower opening 122. Since the side spray has a large fan-shaped spray range and a long spray stroke, the side spray that reaches the edge of the tank 11 will pass through the lower opening 122. By blocking this part of the side spray by the baffle plate 3 behind the lower opening 122, the impact range of the side spray is reduced, further protecting the cleanliness of the on-site working environment.
[0042] In some implementation methods, please refer to Figure 1 The water collection device for the cold side spray of the hot-rolled layer also includes a third guide plate 15. The lower opening 122 is located on the side of the side formed by the trough body 11, at the end of the strip in the running direction, which is the third side. The third guide plate 15 is connected to the third side and extends from the third side toward the interior of the trough body 11 in a third direction, which forms an obtuse angle with the running direction of the strip. Similar to the second guide plate 14, the third guide plate 15 also guides the head of the strip to curl upwards.
[0043] In summary, this device, through the second guide plate 14 and the third guide plate 15, solves the problem of the water collection device being prone to loosening and misalignment, which leads to the steel strip head getting stuck.
[0044] This application also provides a hot-rolled laminar flow cooling system; please refer to the reference. Figure 4 and Figure 6The system includes multiple side spray nozzles 5, multiple water collection devices for the aforementioned hot-rolled layer cold side spray, and multiple cold-resistant plates 6. The multiple side spray nozzles 5 are distributed sequentially at intervals along the strip's running direction, and each of the multiple side spray nozzles 5 is located on one side of the strip's moving path. The multiple water collection devices for the aforementioned hot-rolled layer cold side spray are located on the other side of the strip's moving path, and each of the multiple water collection devices for the aforementioned hot-rolled layer cold side spray corresponds one-to-one with the multiple side spray nozzles 5. The multiple cold-resistant plates 6 are located on opposite sides of the strip's moving path, and the multiple cold-resistant plates 6 are distributed sequentially along the strip's running direction. The multiple cold-resistant plates 6 located on the side where the water collection devices for the hot-rolled layer cold side spray are located are alternately connected to the multiple water collection devices for the hot-rolled layer cold side spray.
[0045] In some implementation methods, please refer to the reference. Figure 4 and Figure 5 The tank body 11 has slots 2 on both sides, and part of the structure of the cold-rolled steel strip 6 passes through the slots 2. The cold-rolled steel strip 6 is connected to the tank body 11 by bolts. This connection method is relatively simple. During installation, the water collection device of the cold side spray of the hot-rolled layer is placed between the two cold-rolled steel strip 6 from top to bottom. Then, the water collection device of the cold side spray of the hot-rolled layer is firmly connected to the cold-rolled steel strip 6 by bolts. This avoids the technical solution of welding the two and eliminates the problem of easy weld breakage after rusting. This improves the safety hazard of personnel colliding with the head of the strip steel after the water collection device is misaligned.
[0046] In particular, please refer to Figure 5 The part of the structure that passes through the slot 2 in the cold plate 6 is curved with the other structure of the cold plate 6, so that the other structure of the cold plate 6 and the water collection device of the hot rolled cold side spray are relatively flush with each other on the side close to the strip movement path.
[0047] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0048] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.
[0049] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A hot strip mill water collection device for a side spray, characterized by, include: The tank has a water collection port on one circumferential side and a drain port on the bottom plate. The water collection port is defined and distributed opposite to the side spray nozzles of the hot rolling laminar flow cooling system. The tank has an enclosing side at the edge of the water collection port, and the side of the enclosing side located at the bottom is the first side. The first guide plate is connected to the upper side of the bottom plate of the trough and extends from the first side toward the interior of the trough in a first direction. The first direction forms an obtuse or acute angle with the strip running direction involved in the hot-rolled layer cooling system.
2. The water collection device for cold-side spraying of hot-rolled layers as described in claim 1, characterized in that, The water collection device for the cold side spray of the hot-rolled layer is provided with at least two first guide plates, which are parallel to each other and are distributed at intervals along the length of the first side.
3. The water collection device for cold-side spraying of hot-rolled layers as described in claim 2, characterized in that, The size of the first guide plate is smaller than the size of the water inlet in the height direction of the tank.
4. The water collection device for cold-side spraying of hot-rolled layers as described in claim 1, characterized in that, The side of the enclosing edge located at the end of the strip in the running direction is the second side, and the water collection device for the cold side spray of the hot-rolled layer further includes: The second guide plate is connected to the second side and extends from the second side toward the interior of the trough in a second direction, the second direction being an obtuse angle to the running direction of the strip.
5. The water collection device for cold-side spraying of hot-rolled layers as described in claim 1, characterized in that, The drain outlet is located on the bottom plate of the tank and is relatively far away from the circumferential side where the water collection outlet is located.
6. The water collection device for cold-side spraying of hot-rolled layers as described in claim 5, characterized in that, The drain outlet is formed in the form of a louvered opening on the bottom plate of the trough.
7. The water collection device for cold-side spraying of hot-rolled layers as described in any one of claims 1-6, characterized in that, The tank body also has a lower opening on one circumferential side where the water inlet is located. The lower opening is located below the water inlet and is lower than the bottom plate of the tank body. The water collection device for the cold side spray of the hot-rolled layer also includes a baffle plate, which is connected to the bottom side of the tank and is opposite to the lower opening.
8. The water collection device for cold-side spraying of hot-rolled layers as described in claim 7, characterized in that, The water collection device for the cold side spray of the hot-rolled layer also includes a third guide plate. The side where the lower opening is located in the side of the groove formed by the strip running direction is the third side. The third guide plate is connected to the third side and extends from the third side toward the interior of the groove in a third direction. The third direction is obtuse to the strip running direction.
9. A hot-rolled laminar flow cooling system, characterized in that, include: Multiple side spray nozzles are distributed sequentially and at intervals along the running direction of the strip, and are all located on one side of the strip's moving path; The multiple water collection devices for the cold side spray of the hot-rolled layer as described in any one of claims 1-8 are all located on the other side of the strip moving path and correspond one-to-one with the multiple side spray nozzles. Multiple cold-resistant plates are disposed on opposite sides of the strip's moving path and are distributed sequentially along the strip's running direction. The multiple cold-resistant plates located on the side where the water collection device of the hot-rolled layer's cold side spray is located are alternately connected to the multiple water collection devices of the hot-rolled layer's cold side spray.
10. The hot-rolled laminar flow cooling system as described in claim 9, characterized in that, Slots are provided on both sides of the tank, and the cold protection plate passes through the slots and is connected to the tank by bolts.