Hot rolled strip laminar flow cooling header and header process

Abstract

The present application relates to the technical field of metallurgical rolling equipment, in particular to a laminar flow cooling water collector for hot-rolled strip steel and a water collecting process. The water collector designed in the present application is provided with a sickle-shaped water sealing plate at the opening, which can prevent the collision of the side edge of the head of the strip steel into the interior of the water collector and avoid the rebound of the side-spraying water into the surface of the strip steel. Meanwhile, a drainage pipeline is designed for directional drainage, so as to ensure that the side-spraying water can directly enter the drainage groove. In addition, a cover plate that can be flexibly turned is designed above the motor, which facilitates the daily maintenance and repair of the motor. The present application can effectively enhance the water collecting effect, reduce the damage caused by the collision and friction between the strip steel and the water collector, and increase the convenience of equipment repair and improve the production efficiency.

Description

Technical Field

[0001] This invention relates to the field of metallurgical steel rolling equipment technology, specifically to a laminar flow cooling water collector and water collection process for hot-rolled strip steel. Background Technology

[0002] In China, the laminar flow cooling system of hot-rolled strip steel production lines typically uses water spray cooling through upper and lower manifolds. When the upper manifold sprays water, water tends to accumulate on the surface of the strip steel, affecting the quality of the finished strip steel. Therefore, some side spray devices need to be installed in the laminar flow cooling section to blow away the water on the surface of the strip steel in a timely manner. These side spray waters need to be collected by water collectors and discharged in a timely manner to ensure the effectiveness of laminar flow cooling.

[0003] Currently, the most common laminar flow cooling water collectors use a large, bag-like cavity structure with the opening facing the side spray direction. A few vertical steel plates divide the water collection area into multiple zones, each with drainage holes at the bottom. This structure frequently presents the following problems in field use: First, the incoming steel strip head is in a free state and easily swings left and right along the direction of travel. When the strip head reaches the side spray position, the side of the strip often enters the water collection area and collides with the collector, affecting normal production. Second, the side spray water pressure is high, and the water entering the collector may bounce back onto the strip surface, affecting the spray effect. Third, the collector drains water through direct openings, and the discharged water can easily splash onto the motor surface, posing a safety hazard. Fourth, the collector is a one-piece welded structure, directly above the motor, which is not conducive to motor inspection and maintenance. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a laminar flow cooling water collector and water collection process for hot-rolled strip steel, which can effectively enhance the water collection effect, reduce the damage caused by collision and friction between the strip steel and the water collector, increase the convenience of equipment maintenance, and improve production efficiency.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0006] I. A laminar flow cooling water collector for hot-rolled strip steel

[0007] This invention provides a laminar flow cooling water collector for hot-rolled strip steel, installed directly above the drive motor unit on the transmission side of the conveyor roller 3, for collecting side-sprayed water from the operating side of the conveyor roller 3. It mainly includes: a base plate 2 located directly above the drive motor unit; a back plate 1 on the side of the base plate 2 closest to the conveyor roller 3; the back plate 1, top plate, and side ribs 12 forming a box-shaped water collection area; the depth of the box-shaped water collection area along the side-sprayed water direction is less than the distance between the drive motor unit and the conveyor roller 3; multiple water sealing mechanisms are arranged parallel and at equal intervals along the strip running direction within the box-shaped water collection area; the box-shaped water collection area is divided into multiple water collection units by the water sealing mechanisms; each water collection unit has a drain outlet at its bottom; and inspection holes are provided on the base plate 2 corresponding to the positions directly above each motor in the drive motor unit, with a flip-top cover 6 installed above each inspection hole.

[0008] Preferably, the water sealing mechanism includes a plurality of sickle-shaped water sealing plates 10 arranged at equal intervals in parallel along the running direction of the strip steel within the box-shaped water collection area. The angle α between the sickle-shaped water sealing plates 10 and the back plate 1 is 45 to 60 degrees, and the inclined direction is towards the incoming direction of the strip steel.

[0009] Preferably, the sickle-shaped water sealing plate 10 is bent twice along the direction of the incoming strip steel. The first bending angle b is 150 degrees and the second bending angle c is 90 degrees, and the bending points are all rounded.

[0010] Preferably, each of the plurality of sickle-shaped water sealing plates 10 is provided with a fixed bracket 9, and a rounded corner baffle 8 is installed at one end of the fixed bracket 9 near the conveyor roller 3. The top of the rounded corner baffle 8 is welded to the top plate, and the bottom is welded to the corresponding fixed bracket 9.

[0011] Preferably, the outermost edge of the sickle-shaped water sealing plate 10 is flush with the outermost edge of the rounded corner baffle 8, and the distance between both and the edge of the bottom plate is no more than 10mm.

[0012] Preferably, each of the drain outlets is connected to a drainage ditch 5 via a separate drainage pipe 4, and the drainage ditch 5 is connected to a cooling water circulation system.

[0013] Preferably, the inlet of the drainage pipe 4 is a funnel shape, wider at the top and narrower at the bottom, and the drainage pipe 4 bends once in the middle with a bending angle of 140 degrees.

[0014] Preferably, the flip cover 6 is positioned directly above the corresponding inspection hole, and the bottom of the flip cover 6 is hinged to the base plate 2 along the long side of the inspection hole. When the flip cover 6 is closed, the distance between its four sides and the four sides of the inspection hole is 10mm.

[0015] Preferably, side baffle 13 and side baffle 2 14 are respectively installed on the outside of the two side ribs 12.

[0016] II. A laminar flow cooling water collection process for hot-rolled strip steel

[0017] Based on the same inventive concept, this invention also provides a laminar flow cooling water collection process for hot-rolled strip steel, which, based on the laminar flow cooling water collector for hot-rolled strip steel as described above, mainly includes the following steps:

[0018] S1, Side-spray water sealing and collection process: The side-spray device on the operating side of the conveyor roller blows the water on the surface of the strip steel toward the box-shaped water collection area on the transmission side. The side-spray water first hits the outer wall of the inclined sickle-shaped water sealing plate in a direction perpendicular to the back plate and then changes its running direction. Then it hits the inner wall of the next sickle-shaped water sealing plate in a direction parallel to the back plate and changes its running direction again. Finally, it collides with the back plate and flows into the corresponding drain outlet.

[0019] S2, Anti-collision process for strip steel running: During the running of the strip steel along the conveyor roller, it is driven to deflect towards the transmission side by the side spray water. When it comes into contact with the bent end of the sickle-shaped water sealing plate or the outer edge of the rounded corner baffle, it is guided and pulled back to the normal operating trajectory by the rounded corner part of the bent end of the sickle-shaped water sealing plate or the outer edge of the rounded corner baffle.

[0020] S3, Water Collection Directional Drainage and Circulation Process: The water collected at the drain outlet is blocked and its kinetic energy is reduced at the bend of the drain pipe. It then flows from the drain pipe outlet into the drainage ditch and back to the cooling water circulation system through the drainage ditch.

[0021] S4, Roller conveyor drive motor maintenance process: At the start of maintenance, open the flip cover and perform motor maintenance through the corresponding maintenance hole; after maintenance, close the flip cover and provide water and heat insulation protection for the motor.

[0022] Compared with the prior art, the present invention has the following main advantages:

[0023] 1. This invention provides a laminar flow cooling water collector for hot-rolled strip steel. Multiple sickle-shaped water sealing plates are arranged in parallel at equal intervals in the water collection area. The direction of the side-sprayed water is changed by the reflection principle. In conjunction with the back plate, top plate and side ribs of the water collection area, the kinetic energy of the side-sprayed water can be effectively consumed to achieve efficient water sealing and collection.

[0024] 2. The present invention features two bends at the end of the sickle-shaped water sealing plate, and rounded corner baffles are designed at equal intervals between the sickle-shaped water sealing plates. This effectively prevents the strip head from penetrating into the water collection area and causing violent collisions that could damage the water collector. At the same time, the natural rounded corners at the bends can reduce the friction with the edge of the strip, avoiding quality defects such as burrs and cracks caused by severe friction on the edge of the strip.

[0025] 3. The present invention has a funnel-shaped drain outlet at the bottom of the water collection area, which is larger at the top and smaller at the bottom, and can collect side spray water over a wide range. The drain pipe has a bend in the middle, which can reduce the kinetic energy of the falling water and prevent water from splashing after landing. The drain outlet is directly connected to the drainage ditch through the drain pipe, which can ensure that the collected water directly enters the circulation and avoids loss in the intermediate process.

[0026] 4. The present invention has designed the longitudinal depth of the water collection area, and reserved enough space to open the inspection hole on the bottom plate at the position directly above the motor. A flip cover is set above the inspection hole. During normal production, the cover is close to the bottom plate, which can ensure that no water flows into the motor from the inspection port. When maintenance is required, the flip cover can be opened directly for convenient maintenance operations. Attached Figure Description

[0027] Figure 1 This is a front view of the laminar flow cooling water collector for hot-rolled strip steel in an embodiment of the present invention;

[0028] Figure 2 This is a top view of the laminar flow cooling water collector for hot-rolled strip steel in an embodiment of the present invention;

[0029] Figure 3 This is a side view of the laminar flow cooling water collector for hot-rolled strip steel in an embodiment of the present invention;

[0030] Figure 4 for Figure 2 A magnified view of a portion of region M in the middle;

[0031] Figure 5 This is a flowchart of the water collection process in an embodiment of the present invention.

[0032] In the diagram: 1-back plate, 2-bottom plate, 3-conveyor roller conveyor, 4-drainage pipe, 5-drainage ditch, 6-flipping cover, 7-hinge, 8-rounded corner baffle, 9-fixed bracket, 10-sickle-shaped water sealing plate, 11-top plate, 12-rib plate, 13-side baffle one, 14-side baffle two. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0034] It should be noted that, depending on the implementation needs, the various steps / components described in this application can be broken down into more steps / components, or two or more steps / components or parts of the operation of steps / components can be combined into new steps / components to achieve the purpose of this invention.

[0035] Example 1: This example provides a laminar flow cooling water collector for hot-rolled strip steel, installed directly above the drive motor unit on the transmission side of the conveyor roller 3, for collecting side-sprayed water from the operating side of the conveyor roller 3; Figures 1-4 As shown, it mainly includes: a base plate 2 located directly above the drive motor assembly; a back plate 1 located on the side of the base plate 2 near the conveyor roller 3; the back plate 1, the top plate, and the side ribs 12 forming a box-shaped water collection area; the depth of the box-shaped water collection area along the side spray water direction is less than the distance between the drive motor assembly and the conveyor roller 3; multiple water sealing mechanisms are arranged parallel at equal intervals along the strip running direction in the box-shaped water collection area; the box-shaped water collection area is divided into multiple water collection units by the water sealing mechanisms; each water collection unit has a drain outlet at its bottom; and inspection holes are opened on the base plate 2 corresponding to the positions directly above each motor in the drive motor assembly, with a flip cover plate 6 installed above each inspection hole.

[0036] The water sealing mechanism includes a plurality of sickle-shaped water sealing plates 10 arranged at equal intervals in parallel along the running direction of the strip steel within the box-shaped water collection area. The angle α between the sickle-shaped water sealing plates 10 and the back plate 1 is 45 to 60 degrees, and the inclined direction is towards the incoming direction of the strip steel.

[0037] Furthermore, the sickle-shaped water sealing plate 10 is bent twice along the direction of the incoming strip steel. The first bending angle b is 150 degrees and the second bending angle c is 90 degrees, and the bending points are all rounded.

[0038] Furthermore, each of the plurality of sickle-shaped water sealing plates 10 is provided with a fixed bracket 9, and a rounded corner baffle 8 is installed at one end of the fixed bracket 9 near the conveyor roller 3. The top of the rounded corner baffle 8 is welded to the top plate, and the bottom is welded to the corresponding fixed bracket 9.

[0039] Furthermore, the outermost edge of the sickle-shaped water sealing plate 10 is flush with the outermost edge of the rounded corner baffle 8, and the distance between both and the edge of the bottom plate is no more than 10mm.

[0040] Furthermore, each of the drain outlets is connected to a drainage ditch 5 via a separate drainage pipe 4, and the drainage ditch 5 is connected to the cooling water circulation system.

[0041] Furthermore, the inlet of the drainage pipe 4 is a funnel shape, wider at the top and narrower at the bottom, and the drainage pipe 4 bends once in the middle with a bending angle of 140 degrees.

[0042] Furthermore, the flip cover 6 is positioned directly above the corresponding inspection hole, and the bottom of the flip cover 6 is hinged to the base plate 2 along the long side of the inspection hole. When the flip cover 6 is closed, the distance between its four sides and the four sides of the inspection hole is 10mm.

[0043] Furthermore, side baffle 13 and side baffle 2 14 are respectively installed on the outside of the two side ribs 12.

[0044] Example 2: This example provides a hot-rolled strip laminar flow cooling water collector, which consists of a top plate, a bottom plate, and two side ribs forming a box-shaped water collection area. The depth of the water collection area along the side spray water direction is 250mm, leaving sufficient space for the motor maintenance hole on the bottom plate.

[0045] Furthermore, multiple sickle-shaped water-sealing plates are arranged parallel to each other at equal intervals within the water collection area. The angle α between the sickle-shaped water-sealing plate and the back plate ranges from 45 to 60 degrees, and its orientation is along the direction of the incoming steel strip. The sickle-shaped water-sealing plates are welded on three sides, with an end bending angle b of 150 degrees and a bending angle c of 90 degrees, forming a natural transition rounded corner at the bend. The distance between the outermost edge of the sickle-shaped water-sealing plate at the bend and the edge of the bottom plate is no more than 10 mm.

[0046] Furthermore, rounded corner baffles are welded at equal intervals between the sickle-shaped water-sealing plates. The shape of the rounded corner baffles is similar to the bend at the end of the sickle-shaped water-sealing plates. The rounded corner baffles and the sickle-shaped water-sealing plates work together to guide the steel strip and prevent collisions. The top of the rounded corner baffle is welded to the top plate, and the bottom is welded to the sickle-shaped water-sealing plate through a fixed bracket. The width of the fixed bracket does not exceed 50mm.

[0047] Furthermore, rectangular drain outlets are designed at fixed intervals at the bottom of the water collection area. Each drain outlet is connected to the drainage ditch through a separate drain pipe. The inlet of the drain pipe is a flared opening that is wider at the top and narrower at the bottom. The flared opening adopts a semi-open structure to increase the range of water collection. There is a bend in the middle of the drain pipe at a bending angle of 140 degrees. The bend can buffer the kinetic energy of the falling water and prevent water splashing.

[0048] Furthermore, an inspection hole is designed on the base plate directly above the motor, and a flip cover is installed thereon. The flip cover is hinged to the long side of the inspection hole. The length and width of the flip cover are both 20mm larger than the length and width of the inspection hole. During installation, ensure that all four edges of the flip cover extend 10mm beyond the inspection hole. During normal production, the flip cover fits tightly against the base plate to prevent water from entering the bottom motor. When maintenance or repair of the motor is required, simply open the flip cover.

[0049] Its working principle includes:

[0050] 1) High-efficiency water sealing technology. This technology uses sickle-shaped water sealing plates arranged in parallel at equal intervals in the water collection area. The sickle-shaped water sealing plates are welded on three sides, and the angle α between the plates and the back plate ranges from 45 to 60 degrees. Figure 4As shown in the diagram, direction 1 is the direction of the side spray water. According to the principle of reflection, the side spray water will change its direction of travel after colliding with the sickle-shaped water sealing plate and bounce off along direction 2. The bounced water will collide with another sickle-shaped water sealing plate and change its direction of travel again. Since the sickle-shaped water sealing plates are arranged in parallel, the bounced water will travel in the same direction as direction 1 and collide with the back plate. Multiple collisions will consume most of the kinetic energy of the side spray water. Finally, the side spray water will fall into the drain of the bottom plate and be discharged.

[0051] 2) Anti-collision technology. The ends of the sickle-shaped water seal plate are bent twice, such as... Figure 4 As shown, the bending angle b is 150 degrees and the angle c is 90 degrees, forming a natural transition rounded corner at the bend. Rounded corner baffles are designed at equal intervals between the sickle-shaped water-sealing plates. The rounded corner baffles have a similar end structure to the sickle-shaped water-sealing plates, also using a 90-degree bend to form a natural transition rounded corner. The bottom of the rounded corner baffles is welded to the sickle-shaped water-sealing plates using a fixed bracket to increase stability. Both the sickle-shaped water-sealing plates and the rounded corner baffles are positioned within 10mm of the water collection area inlet, and their bottoms are lower than the height of the strip steel. The closely arranged sickle-shaped water-sealing plates and rounded corner baffles effectively prevent the strip steel head from penetrating into the water collection area and violently colliding, thus damaging the water collector. At the same time, the natural rounded corners at the bends reduce friction with the strip steel edge, avoiding quality defects such as burrs and cracks caused by severe friction. The sickle-shaped water-sealing plates serve a dual purpose: sealing water and preventing impacts, fully utilizing the equipment's capabilities.

[0052] 3) Directional drainage technology. A drainage pipe is designed to directionally divert collected water. A rectangular drain outlet is designed at the bottom of the collection area, directly connected to the drainage pipe. The drain pipe inlet is a flared opening, wider at the top and narrower at the bottom, with a semi-open structure, opening towards the incoming water to collect water from side sprays over a larger area. The drainage pipe is a rectangular pipe welded from steel plates, with a bend in the middle to reduce the kinetic energy of the falling water and prevent splashing upon impact. The pipe outlet faces the drainage ditch, ensuring that the collected water directly enters the circulation system, avoiding losses during intermediate processes.

[0053] 4) Convenient on-machine maintenance technology. The water collector is installed directly above the drive motor of the transmission side roller conveyor. The laminar flow cooling area has a harsh environment with high temperature and humidity, which is very harmful to the motor and related electrical equipment. The protection of the motor needs to be both water-proof and heat-insulated, and also requires regular inspection and maintenance. The water collector designed in this invention controls the longitudinal depth of the water collection area and reserves sufficient space to design an inspection hole directly above the motor on the base plate. The flip cover is hinged to the long side of the inspection hole, and all four sides of the flip cover are 20mm larger than the size of the inspection hole. During normal production, the cover is close to the base plate to ensure that no water flows from the inspection port onto the motor. When maintenance is required, the flip cover can be opened directly.

[0054] Example 3, based on the same inventive concept, this example also provides a laminar flow cooling water collection process for hot-rolled strip steel, based on the laminar flow cooling water collector for hot-rolled strip steel as described above, such as... Figure 5 As shown, the main steps include the following:

[0055] S1, Side-spray water sealing and collection process: The side-spray device on the operating side of the conveyor roller blows the water on the surface of the strip steel toward the box-shaped water collection area on the transmission side. The side-spray water first hits the outer wall of the inclined sickle-shaped water sealing plate in a direction perpendicular to the back plate and then changes its running direction. Then it hits the inner wall of the next sickle-shaped water sealing plate in a direction parallel to the back plate and changes its running direction again. Finally, it collides with the back plate and flows into the corresponding drain outlet.

[0056] S2, Anti-collision process for strip steel running: During the running of the strip steel along the conveyor roller, it is driven to deflect towards the transmission side by the side spray water. When it comes into contact with the bent end of the sickle-shaped water sealing plate or the outer edge of the rounded corner baffle, it is guided and pulled back to the normal operating trajectory by the rounded corner part of the bent end of the sickle-shaped water sealing plate or the outer edge of the rounded corner baffle.

[0057] S3, Water Collection Directional Drainage and Circulation Process: The water collected at the drain outlet is blocked and its kinetic energy is reduced at the bend of the drain pipe. It then flows from the drain pipe outlet into the drainage ditch and back to the cooling water circulation system through the drainage ditch.

[0058] S4, Roller conveyor drive motor maintenance process: At the start of maintenance, open the flip cover and perform motor maintenance through the corresponding maintenance hole; after maintenance, close the flip cover and provide water and heat insulation protection for the motor.

[0059] Furthermore, all parts of this application that are not described in detail are the same as or implemented using existing technology.

[0060] In summary:

[0061] 1. This invention provides a laminar flow cooling water collector for hot-rolled strip steel. Multiple sickle-shaped water sealing plates are arranged in parallel at equal intervals in the water collection area. The direction of the side-sprayed water is changed by the reflection principle. In conjunction with the back plate, top plate and side ribs of the water collection area, the kinetic energy of the side-sprayed water can be effectively consumed to achieve efficient water sealing and collection.

[0062] 2. The present invention features two bends at the end of the sickle-shaped water sealing plate, and rounded corner baffles are designed at equal intervals between the sickle-shaped water sealing plates. This effectively prevents the strip head from penetrating into the water collection area and causing violent collisions that could damage the water collector. At the same time, the natural rounded corners at the bends can reduce the friction with the edge of the strip, avoiding quality defects such as burrs and cracks caused by severe friction on the edge of the strip.

[0063] 3. The present invention has a funnel-shaped drain outlet at the bottom of the water collection area, which is larger at the top and smaller at the bottom, and can collect side spray water over a wide range. The drain pipe has a bend in the middle, which can reduce the kinetic energy of the falling water and prevent water from splashing after landing. The drain outlet is directly connected to the drainage ditch through the drain pipe, which can ensure that the collected water directly enters the circulation and avoids loss in the intermediate process.

[0064] 4. The present invention has designed the longitudinal depth of the water collection area, and reserved enough space to open the inspection hole on the bottom plate at the position directly above the motor. A flip cover is set above the inspection hole. During normal production, the cover is close to the bottom plate, which can ensure that no water flows into the motor from the inspection port. When maintenance is required, the flip cover can be opened directly for convenient maintenance operations.

[0065] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A laminar flow cooling water collector for hot-rolled strip steel, installed directly above the drive motor unit of the conveyor roller (3) on the transmission side, for collecting side-sprayed water from the operating side of the conveyor roller (3), characterized in that: The system includes a base plate (2) located directly above the drive motor assembly. The base plate (2) has a back plate (1) on the side near the conveyor roller (3). The back plate (1), the top plate, and the side ribs (12) form a box-shaped water collection area. The depth of the box-shaped water collection area along the side spray water direction is less than the distance between the drive motor assembly and the conveyor roller (3). Multiple water sealing mechanisms are arranged parallel at equal intervals along the strip running direction in the box-shaped water collection area. The box-shaped water collection area is divided into multiple water collection units by the water sealing mechanisms. Each water collection unit has a drain outlet at the bottom. The base plate (2) has inspection holes at the positions directly above each motor in the drive motor assembly, and each inspection hole is equipped with a flip cover plate (6). The water sealing mechanism includes multiple sickle-shaped water sealing plates (10) arranged at equal intervals parallel to each other along the running direction of the strip steel in the box-shaped water collection area. The sickle-shaped water sealing plate (10) is bent twice along the direction of the incoming strip.

2. The laminar flow cooling water collector for hot-rolled strip steel according to claim 1, characterized in that, The angle α between the sickle-shaped water sealing plate (10) and the back plate (1) is 45-60 degrees, and the inclined direction is towards the direction of the incoming strip steel.

3. A laminar flow cooling water collector for hot-rolled strip steel according to claim 2, characterized in that, The first bending angle b of the sickle-shaped water sealing plate (10) is 150 degrees, the second bending angle c is 90 degrees, and the bending points are all transition rounded corners.

4. A laminar flow cooling water collector for hot-rolled strip steel according to claim 2, characterized in that, Each of the multiple sickle-shaped water sealing plates (10) is provided with a fixed bracket (9). Each fixed bracket (9) is equipped with a rounded corner baffle (8) at one end near the conveying roller (3). The top of the rounded corner baffle (8) is welded to the top plate, and the bottom is welded to the corresponding fixed bracket (9).

5. A laminar flow cooling water collector for hot-rolled strip steel according to claim 4, characterized in that, The outermost edge of the sickle-shaped water sealing plate (10) is flush with the outermost edge of the rounded corner baffle (8), and the distance between the two and the edge of the bottom plate is no more than 10mm.

6. A laminar flow cooling water collector for hot-rolled strip steel according to claim 1, characterized in that, Each of the drain outlets is connected to a drainage ditch (5) via a separate drainage pipe (4), and the drainage ditch (5) is connected to the cooling water circulation system.

7. A laminar flow cooling water collector for hot-rolled strip steel according to claim 6, characterized in that, The inlet of the drainage pipe (4) is a funnel shape with a larger top and a smaller bottom. The drainage pipe (4) bends once in the middle with a bending angle of 140 degrees.

8. A laminar flow cooling water collector for hot-rolled strip steel according to claim 1, characterized in that, The flip cover (6) is located directly above the corresponding inspection hole, and the bottom of the flip cover (6) is hinged to the base plate (2) along the long side of the inspection hole. When the flip cover (6) is closed, the distance between its four sides and the four sides of the inspection hole is 10mm.

9. A laminar flow cooling water collector for hot-rolled strip steel according to claim 1, characterized in that, Side baffle one (13) and side baffle two (14) are respectively installed on the outside of the two side ribs (12).

10. A laminar flow cooling water collection process for hot-rolled strip steel, based on the laminar flow cooling water collector for hot-rolled strip steel according to any one of claims 1 to 9, characterized in that, Includes the following steps: S1, Side-spray water sealing and collection process: The side-spray device on the operating side of the conveyor roller blows the water on the surface of the strip steel toward the box-shaped water collection area on the transmission side. The side-spray water first hits the outer wall of the inclined sickle-shaped water sealing plate in a direction perpendicular to the back plate and then changes its running direction. Then it hits the inner wall of the next sickle-shaped water sealing plate in a direction parallel to the back plate and changes its running direction again. Finally, it collides with the back plate and flows into the corresponding drain outlet. S2, Anti-collision process for strip steel running: During the running of the strip steel along the conveyor roller, it is driven to deflect towards the transmission side by the side spray water. When it comes into contact with the bent end of the sickle-shaped water sealing plate or the outer edge of the rounded corner baffle, it is guided and pulled back to the normal operating trajectory by the rounded corner part of the bent end of the sickle-shaped water sealing plate or the outer edge of the rounded corner baffle. S3, Water Collection Directional Drainage and Circulation Process: The water collected at the drain outlet is blocked and its kinetic energy is reduced at the bend of the drain pipe. It then flows from the drain pipe outlet into the drainage ditch and back to the cooling water circulation system through the drainage ditch. S4, Roller conveyor drive motor maintenance process: At the start of maintenance, open the flip cover and perform motor maintenance through the corresponding maintenance hole; after maintenance, close the flip cover and provide water and heat insulation protection for the motor.

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