Continuous hot rolling equipment for metallurgical manufacturing

Abstract

The invention relates to the technical field of hot rolling, in particular to continuous hot rolling equipment for metallurgical manufacturing, which comprises a hot rolling mill main body, a slide way, a conveying chain and chain plates, the slide way is linearly arranged at an outlet of the hot rolling mill main body, the conveying chain is mounted on the slide way, and the chain plates are mounted on a plurality of chain links of the conveying chain. By arranging the connecting assembly, the water collecting tank and the heat dissipation groove, the water conveying column is fixedly connected to the upper portion of the chain, high-pressure water in the water collecting tank is pumped to the water conveying column through the water outlet along the water conveying pipe, and the water conveying column is driven by the chain plate to rotate along the path of the chain in the process of communicating with the heat dissipation groove in the chain plate; in the process, the heat dissipation grooves in each chain plate are gradually filled with cooling water, and then the steel plates covering the heat dissipation grooves are cooled, so that the situation that the production quality of the steel plates is possibly reduced due to the fact that the cooling speeds of the upper surfaces and the lower surfaces of the steel plates are obviously different and affected by thermal stress is avoided.

Description

Technical Field

[0001] This invention relates to the field of hot rolling technology, specifically to a continuous hot rolling equipment for metallurgical manufacturing. Background Technology

[0002] Hot rolling equipment is a complete set of industrial equipment used to plastically deform metal billets above the recrystallization temperature. Its core function is to apply pressure to high-temperature metal through rolls to achieve thickness reduction, shape control, and performance optimization. The main equipment includes: roughing and finishing mills, cooling and coiling systems. Among them, the laminar flow cooling device controls the cooling rate of the strip steel through multi-stage spraying. In the production of hot-rolled strip steel, after finishing rolling, the hot-rolled strip steel needs to be cooled by laminar flow water. However, laminar flow water has a certain degree of adhesion. When sprayed at the spray nozzle, the laminar flow water easily adheres to the fixed blocks of the pipeline and the equipment, which can easily accelerate equipment corrosion. At the same time, when the laminar flow water is sprayed onto the hot-rolled strip steel, the high-temperature steam carries the gas upward and can easily enter and remain in the pipeline, interfering with the normal effect of the laminar flow water.

[0003] To address the aforementioned problems, existing technologies offer several solutions. For example, patent application CN202420849233.8 provides a laminar flow cooling device for hot-rolled strip steel. This solution utilizes a fixed block, a drain pipe, a guide pipe, and a venting pipe. The drain pipe is positioned on the fixed block, with one end connected to the drain pipe and the other end located below the fixed block. The lower end of the guide pipe extends beyond the fixed block, preventing laminar flow water from adhering to the fixed block and equipment surface, thus avoiding accelerated corrosion. One end of the venting pipe is connected to the drain pipe, and the other end is located above the fixed block, allowing for the extraction of gas remaining in the drain pipe, preventing gas from disrupting the laminar flow effect. However, this solution only cools the upper surface of the steel plate. Due to the rapid cooling of the upper surface, and the fact that the lower surface is directly transported by a chain plate, the steel plate cannot directly contact the water. This prevents conventional spraying technology from cooling the back of the steel plate, resulting in a significant difference in cooling rates between the upper and lower surfaces. This thermal stress can potentially lead to a decline in the production quality of the steel plate. Summary of the Invention

[0004] The purpose of this invention is to provide a continuous hot rolling equipment for metallurgical manufacturing, which solves the problem of uneven cooling of steel plates caused by high-temperature steam carrying gas rising when laminar water is sprayed onto hot-rolled strip steel; at the same time, it solves the problem of uneven cooling of steel plates caused by inconsistent cooling rates between the upper and lower parts during laminar flow, which leads to reduced product quality in existing technologies.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A continuous hot rolling mill for metallurgical manufacturing includes a hot rolling mill body, a slide rail, a conveyor chain, and chain plates. The slide rail is arranged in a straight line at the outlet of the hot rolling mill body. The conveyor chain is installed on the slide rail, and chain plates are installed on multiple links of the conveyor chain. The chain plates are characterized by having heat dissipation grooves, with adjacent chain plates connected by flexible hoses. A water collection tank is provided on the inner wall of the slide rail, and a rotating plate is rotatably mounted on the water collection tank. The lower end face of the water collection tank has a water inlet, and the rotating plate has a water outlet. The water inlet and outlet are connected. A connecting assembly is provided on the outer edge of the water collection tank. The connecting assembly includes a water delivery column and a chain. The chain is rotatably mounted on the slide rail, and the water delivery column is disposed on the chain and connected to the water outlet. The connecting assembly causes the water delivery column to intermittently connect with the heat dissipation grooves through the rotation of the chain.

[0007] As easily understood, by setting up a connecting component, the water supply column on the connecting component is fixed on the rotation path of the chain. During the process of the water supply column communicating with the heat dissipation trough, the water supply column moves together with the chain plate of the bearing section, so that the subsequent water supply column communicates with the heat dissipation trough on the next chain plate, thereby providing power to the connecting component, so that multiple water supply columns rotate synchronously with the chain plate, and some water supply columns are always in communication with the heat dissipation trough on the chain plate, so that multiple heat dissipation troughs on the chain plate are circulated with water. When the chain plate of the bearing section is transporting the steel plate, the lower surface of the steel plate can continuously be in direct contact with the cooling water overflowing from the heat dissipation trough, thereby avoiding significant differences in the cooling rate between the upper and lower surfaces of the steel plate, thus ensuring the production quality of the continuous hot rolling equipment for metallurgical manufacturing when continuously producing steel plates. The operation of this device is driven by the power of the chain plate movement, so no additional power is required, reducing manufacturing costs.

[0008] Preferably, the connecting assembly includes a guide rail, a water supply pipe, and a sealing part. The chain is installed on the outer edge of the water collection tank. Multiple water supply columns are arranged in a linear array and fixedly connected to the chain. The guide rail is fixedly installed on the slide rail and is equidistant from the chain. The water supply columns are slidably connected to the guide rail. The heat dissipation groove is connected to the water supply columns through the sealing part. The connecting channel of the heat dissipation groove is configured as a water passage. The water passage is connected to a flexible hose. A single water outlet is connected to a single water supply column through a water supply pipe. The guide rail includes a connecting part and a disconnecting part. The connecting part is equidistant from the flip point of the chain plate. The water supply column on the connecting part is connected to the heat dissipation groove. The water supply column on the disconnecting part is located outside the heat dissipation groove.

[0009] It's easy to understand that because the laminar cooling section in hot rolling is relatively long and there are many mechanical mechanisms below the chain plates, it's impossible to arrange complex mechanisms spanning long distances. By arranging a short chain below the main outlet of the hot rolling mill, different water columns are alternately connected to different heat dissipation channels through the chain's movement path. While the high-pressure water in the water columns is sprayed towards the heat dissipation channels, a portion is diverted into the chain plates at the other end of the hoses. Through continuous water injection, water is supplied to the heat dissipation channels of multiple chain plates, ensuring that even during long-distance laminar cooling, the cooling water in the hoses can still replenish the heat dissipation channels in the distant chain plates, thus guaranteeing the heat exchange effect of the heat dissipation channels on the steel plate. Furthermore, by equidistantly spaced around the perimeter of the chain... By installing guide rails and using the upper and lower limits of the guide wheels on the water column and the guide rails, the problem of vibration occurring during the connection between the water column and the heat dissipation tank on the chain plate due to the flexibility of the chain structure is avoided. This would prevent the water column and the heat dissipation tank from connecting properly. As the water column moves along the chain path, the water outlets connected to the water column rotate at the same angle due to the installation method of the rotating plate and the water collection tank. This allows for long-distance continuous water supply to the entire heat dissipation tank through short-distance intermittent water replenishment in a compact space. This avoids significant temperature differences between the upper and lower surfaces of the steel plate during cooling, ensuring uniform temperature of the steel plate and improving its quality.

[0010] Preferably, a water delivery channel is provided at the connection between the water delivery column and the heat dissipation channel, and a sliding block is elastically connected inside the water delivery channel. The sliding block coincides with the outlet end of the water delivery channel. A trigger block that abuts against the sliding block is elastically connected inside the heat dissipation channel. A sliding groove is provided inside the water passage section along the opening direction of the heat dissipation channel, and a slider is slidably connected inside the sliding groove. The slider abuts against the inner wall of the water passage section.

[0011] To avoid the water column continuously pumping cooling water from the collection tank out of the water column even when it is not connected to the heat dissipation tank, thus wasting cooling water and increasing the operating cost of the equipment, during the gradual connection between the water column and the heat dissipation tank, the sliding block gradually abuts against the trigger block along the circumferential path of the connection part. During this process, the sliding block is squeezed by the trigger block and moves towards the water column, creating a gap between the water column and the sliding block. As the gap widens, water from the water column enters the heat dissipation tank. Once the water column gradually detaches from the heat dissipation tank, the water output from the water column... As the water level gradually decreases until the sliding block is no longer squeezed by the trigger block, the sliding block rebounds under the combined action of elasticity and water pressure, thus sealing the water supply channel. This prevents the water column from continuously pumping cooling water from the collection tank out of the water supply column when it is not connected to the heat dissipation channel. At this time, because the lower chain plate is flipped relative to the upper chain plate, the slider is subjected to gravity and slides out of the sliding channel and moves towards the inner wall of the water passage, thereby sealing the water flow in the water passage and preventing the hose from supplying water to the outside of the heat dissipation channel. This avoids water waste and reduces the operating cost of the equipment.

[0012] Preferably, the diameter of the semicircle on the left side of the connecting part is larger than the diameter of the semicircle on the right side, and the connecting part and the disconnecting part are symmetrical about the center line of the water collection tank.

[0013] As is easily understood, due to the limitations of the chain structure, the water columns on the arc paths on both sides of the chain are symmetrically positioned along the centerline of the water collection tank. This causes the two water columns about to connect to the chain plate and about to disconnect from it to fail to discharge water momentarily after the sliding block re-aligns with the outlet end of the water tank. Consequently, the water pressure and flow rate of the water column connected to the chain plate at the bearing end fluctuate, preventing the water in the heat dissipation plate from fully contacting the steel plate and affecting the heat dissipation effect. By setting a disconnection section, when the water column moves to the disconnection section after the connection with the heat dissipation tank is broken, the height of the water column at this point cannot connect with the chain plate below due to the small diameter of the semicircle on the right side of the connection section, until the water column moves to the disconnection section. During the process of moving to the connection point between the connecting part and the disconnecting part, high-pressure water will not be injected into the heat dissipation tank. Due to the large diameter of the semicircle on the left side of the connecting part, the water column at this point moves from the guide rail path towards the heat dissipation tank. At this time, the center of the heat dissipation tank and the water column are concentric, making it easier for the heat dissipation tank to connect with the water column. Furthermore, since the water columns are centrally symmetrical, when one side of the water column separates from the heat dissipation tank, the other side of the water column will seamlessly connect with the corresponding heat dissipation tank. This ensures the stability of the overall water supply and water pressure of the connecting component after the connection between one side of the water column and the heat dissipation tank is broken, thus ensuring that the heat dissipation rate of the lower surface of the steel plate remains consistent, thereby ensuring the uniformity of the overall temperature of the steel plate.

[0014] Preferably, a sealing ring is fitted around the outer edge of the water delivery column, and the lower inner ring of the sealing ring is fixedly connected to the water delivery groove. A sealing part is provided in the heat dissipation groove that fits with the outer ring of the sealing ring with a gap. A connecting groove is opened laterally on both sides of the water delivery groove, and a connecting block is provided in the connecting groove. The connecting block passes through the connecting groove and is slidably connected to the connecting groove. One end of the connecting block is provided with an inclined surface, which abuts against the sliding block. The other end of the connecting block abuts against the upper inner ring of the sealing ring.

[0015] It's easy to understand that the connection between the water column and the heat sink inevitably requires a relatively large gap to prevent interference during the connection process. This causes some high-pressure water to spray out from the gap when it flows into the heat sink and hose, resulting in water waste and reduced water pressure, thus affecting the water's heat dissipation efficiency. When the sliding block moves into the water sink under the pressure of the trigger block, the connecting block moves outward from the connecting slot due to the pressure of the sliding block on its inclined surface, and begins to compress the inner ring of the sealing ring, causing the sealing ring to deform into an "umbrella" shape. While filling the gap, as the water output of the water column further increases, the connecting block moves further outward and compresses the sealing ring. Due to the "umbrella" structure of the deformed sealing ring, the sealing ring is subjected to the dual pressure of the connecting block and the water, further increasing the sealing performance at the connection between the water column and the heat sink. This avoids water waste while ensuring the flow and pressure of the cooling water, thereby ensuring the uniformity of the overall temperature of the steel plate.

[0016] Preferably, the water passage includes a first water passage (1061) and a second water passage, the first water passage and the second water passage are respectively disposed in the water passage of adjacent chain plates, the first water passage is connected to the middle of the heat dissipation groove, and the second water passage is connected to both ends of the heat dissipation groove.

[0017] It's easy to understand that if the water outlet of the heat dissipation trough is at the same point on each chain plate, the lower surface of the steel plate will always initially come into contact with the water at the same location. This causes the water in the heat dissipation trough to heat up before flowing to the other side of the steel plate, resulting in an uneven cooling rate on the overall lower surface of the steel plate. By setting up a first water channel and a second water channel, the water flow between the heat dissipation trough and the steel plate contact surface is reversed. This prevents the cooler water from always contacting the same side of the steel plate, heating up, and then flowing to the other side. By setting up different water channels in the heat dissipation trough, alternating cooling of small areas of the steel plate is achieved, ensuring an average cooling rate across the entire steel plate area, thereby guaranteeing the production quality of the steel plate.

[0018] Preferably, the heat dissipation groove includes a partition and a movable groove. The movable groove is formed around the inner wall of the chain plate. The lowest surface of the movable groove is 2cm higher than the opening end of the heat dissipation groove. The partition is slidably connected to the movable groove. A compensation block is elastically connected to the opening end of the heat dissipation groove, and the compensation block abuts against the partition.

[0019] Furthermore, preferably, the compensation block includes a connecting part and a plug, one end of the connecting part is slidably connected to the heat dissipation groove, and the other end is hinged to a plug, the upper surface of the plug coinciding with the opening end of the heat dissipation groove.

[0020] As is easily understood, since the chain plates are driven by a flexible conveyor chain, there may be certain height and angle differences between adjacent chain plates. This can lead to gaps between adjacent chain plates after the steel plate comes into contact with the chain plate, preventing the cooling water from fully contacting the steel plate and resulting in a decrease in the uniformity of the steel plate temperature. The water pressure causes the compensating block to lift the partition. Since the height that the partition can be lifted is limited by the steel plate and the movable groove, when the partition is lifted, it will abut against the steel plate, thereby raising the level of the cooling water to coincide with the steel plate. Through the hinged setting of the connecting part and the plug, if there is a certain angle difference between adjacent chain plates, the inclination angle of the plug at the hinge point complements the angle between the adjacent chain plates, so that the contact surface of the partition still coincides with the steel plate after it is lifted. Through the above settings, it is ensured that the lower surface of the steel plate is continuously in contact with the cooling water during laminar flow cooling, thereby ensuring the temperature uniformity of the steel plate as a whole during cooling and thus ensuring the production quality of the steel plate.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] 1. This invention, by setting up a connecting component, fixes a water delivery column above the chain. High-pressure water in the water collection tank is pumped to the water delivery column through the outlet along the water delivery pipe. As the water delivery column communicates with the heat dissipation grooves on the chain plate, it is driven by the chain plate and rotates along the path of the chain. During the above process, the heat dissipation grooves on each chain plate gradually fill with cooling water due to the connection of the hose, thereby cooling the steel plate covering the heat dissipation grooves. This avoids a significant difference in cooling rate between the upper and lower surfaces of the steel plate, thus ensuring the production quality of the steel plate.

[0023] 2. This invention, by setting up a sliding block, a trigger block, and a slider, uses the squeezing structure of the two to ensure that the water in the water column can only be pumped out when it comes into contact with the chain plate. This avoids the water being pumped out before the water column comes into contact with the chain plate, thus preventing the waste of water resources. Furthermore, the gravitational potential energy of the slider can be used to close the water circuit, preventing the hose from supplying water to the heat dissipation tank below, thereby reducing the operating cost of the equipment.

[0024] 3. By setting a disconnection section, the water in the water column below the chain cannot flow into the hose when it is in the disconnection section. By equidistant from the semi-circular path of the connecting part and the chain plate, and by the central symmetry of the two water columns, the water tanks of the two centrally symmetrical water columns will not close simultaneously when switching states. This avoids fluctuations in the water pressure and volume output of the water column connected to the chain plate, which would prevent the water in the heat sink from fully contacting the steel plate and affecting the heat dissipation effect. This invention avoids the waste of cooling water and ensures the stability of the overall water volume and water pressure of the connecting assembly when one side of the water column is closed.

[0025] 4. By setting up a partition that can move up and down, this invention ensures that if there is a certain height difference or angle difference between adjacent chain plates, the partition can continuously adhere to the lower surface of the steel plate due to water pressure. This ensures that the lower surface of the steel plate is continuously in contact with the cooling water during laminar flow cooling, thereby ensuring the temperature uniformity of the steel plate during cooling and thus ensuring the production quality of the steel plate. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the continuous hot rolling equipment for metallurgical manufacturing according to the present invention;

[0027] Figure 2 This is a schematic diagram of the connection between the connecting component and the chain plate;

[0028] Figure 3 A schematic diagram of the structure in which the water supply channel is opened after the water supply column is connected to the heat dissipation channel;

[0029] Figure 4 A schematic diagram of the structure where adjacent chain plates use the first water channel and the second water channel respectively;

[0030] Figure 5 for Figure 1 Full cross-sectional view of the chain plate at point AA;

[0031] Figure 6 A schematic diagram of a block within a chain plate located below the chain, which cuts off the water flow in the waterway due to gravitational potential energy.

[0032] Figure 7 A full sectional view showing the partition being lifted up by the compensation block and thus coming into contact with the steel plate.

[0033] In the diagram: 101, slide rail; 102, chain plate; 103, heat dissipation groove; 1031, partition plate; 1032, movable groove; 104, compensation block; 1041, connecting part; 1042, plug; 105, sealing part; 106, water passage part; 1061, first water passage; 1062, second water passage; 107, slide groove; 108, slider; 2, water collection tank; 201, rotating plate; 203, water inlet; 204, water outlet; 3, connecting assembly; 301, water column; 302, sealing ring; 303, chain; 304, guide rail; 3041, connecting part; 3042, disconnection part; 401, water channel; 402, sliding block; 4021, inclined plane; 403, trigger block; 404, connecting groove; 405, connecting block; 6, hose; 601, water pipe. Detailed Implementation

[0034] This invention provides a continuous hot rolling mill for metallurgical manufacturing, the technical solution of which is as follows:

[0035] Please see Figures 1 to 7 A continuous hot rolling mill for metallurgical manufacturing includes a hot rolling mill body, a slide rail 101, a conveyor chain, and chain plates 102. The slide rail 101 is arranged in a straight line at the outlet of the hot rolling mill body. The conveyor chain is installed on the slide rail 101, and chain plates 102 are installed on multiple links of the conveyor chain. The chain plates 102 are characterized by having heat dissipation grooves 103, which are connected between adjacent chain plates 102 via flexible hoses 6. A water collection tank 2 is provided on the inner wall of the slide rail 101, and a rotating plate 20 is rotatably mounted on the water collection tank 2. 1. The lower end face of the water collection tank 2 is provided with a water inlet, and the rotating plate 201 is provided with a water outlet 204. The water inlet 204 is connected to the water outlet 203. The outer edge of the water collection tank 2 is provided with a connecting component 3. The connecting component 3 includes a water delivery column 301 and a chain 303. The chain 303 is rotatably mounted on the slide rail 101. The water delivery column 301 is set on the chain 303 and is connected to the water outlet 203. The connecting component 3 causes the water delivery column 301 to intermittently connect with the heat dissipation tank 103 through the rotation of the chain 303.

[0036] Please see Figures 1 to 4The connecting assembly 3 includes a guide rail 304, a water supply pipe 601, and a sealing part 105. A chain 303 is installed on the outer edge of the water collection tank 2. Multiple water supply columns 301 are arranged in a linear array and fixedly connected to the chain 303. The guide rail 304 is fixedly installed on the slide rail 101 and equidistant from the chain 303. The water supply columns 301 are slidably connected to the guide rail 304. The heat dissipation trough 103 communicates with the water supply columns 301 through the sealing part 105. A water passage 106 is provided within the connecting channel of the heat dissipation trough 103, and the water passage 106 communicates with the hose 6. A single water outlet 204 is connected to the hose 601 via the water supply pipe. A single water column 301 is connected. The guide rail 304 includes a connecting part 3041 and a disconnecting part 3042. The connecting part 3041 is equidistant from the flipping point of the chain plate 102. The water column 301 on the connecting part 3041 is connected to the heat dissipation trough 103. The water column 301 on the disconnecting part 3042 is located outside the heat dissipation trough 103. A water channel 401 is provided at the connection between the water column 301 and the heat dissipation trough 103. A sliding block 402 is elastically connected inside the water channel 401. The sliding block 402 coincides with the outlet end of the water channel 401. A trigger that abuts against the sliding block 402 is elastically connected inside the heat dissipation trough 103. Block 403, a sliding groove 107 is provided in the water channel section 106 along the opening direction of the heat dissipation groove 103, a slider 108 is slidably connected in the sliding groove 107, the slider 108 abuts against the inner wall of the water channel section 106, a sealing ring 302 is sleeved on the outer edge of the water column 301, the lower inner ring of the sealing ring 302 is fixedly connected to the water channel 401, the sealing part 105 is clearance-fitted with the outer ring of the sealing ring 302, connecting grooves 404 are transversely opened on both sides of the water channel 401, a connecting block 405 is provided in the connecting groove 404, the connecting block 405 passes through the connecting groove 404 and is slidably connected to the connecting groove 404. One end of the connecting block 405 is also provided with a slope 4021, which abuts against the sliding block 402. The other end of the connecting block 405 abuts against the upper inner ring of the sealing ring 302. The connecting part 3041 and the disconnecting part 3041 are symmetrical along the center line of the water collection tank 2. The water passage 106 includes a first water passage 1061 and a second water passage 1062. The first water passage 1061 and the second water passage 1062 are respectively provided in the water passage 106 of the adjacent chain plate. The first water passage 1061 is connected to the middle of the heat dissipation groove 103, and the second water passage 1061 is connected to both ends of the heat dissipation groove 103.

[0037] Please see Figures 5 to 7The heat dissipation slot 103 includes a partition plate 1031 and a movable slot 1032. The movable slot 1032 is formed around the inner wall of the chain plate 102. The lowest surface of the movable slot 1032 is 2cm higher than the opening end of the heat dissipation slot 103. The partition plate 1031 is slidably connected to the movable slot 1032. A compensation block 104 is elastically connected to the opening end of the heat dissipation slot 103. The compensation block 104 abuts against the partition plate 1031. The compensation block 104 includes a connecting part 1041 and a plug 1042. One end of the connecting part 1041 is slidably connected to the heat dissipation slot 103, and the other end is hinged to the plug 1042. The upper surface of the plug 1042 coincides with the opening end of the heat dissipation slot 103.

[0038] Please see Figures 1 to 6After finishing rolling, the steel plate is cooled by water spraying in the laminar flow cooling section. Cooling water is sprayed from top to bottom onto the upper surface of the steel plate. As the steel plate moves onto the chain plate 102, during the second rolling process, the cooling water continuously cools the moving steel plate. At this time, high-pressure water is pumped into the water collection tank 2 through the inlet 203 and distributed to the corresponding water delivery columns 301 by the outlet 204 on the rotating plate 201. As the chain plate 102 continues to move, the water delivery columns 301 are driven by the adjacent water delivery columns 301 connected to the chain plate 102, thereby... As the chain 303 rotates, it gradually approaches the heat dissipation groove 103 on the chain plate 102. When the water column 301 moves to the connecting part 3041, its movement path is equidistant from the movement path of the chain plate 102, allowing the water column 301 to enter the heat dissipation groove 103. During this process, the sliding block 402 begins to contact the trigger block 403. As the sliding block 402 gradually approaches, it can only resist the elastic force and move towards the water channel 401. As the sliding block 402 moves, the water channel 401... A gap is created between 01 and the sliding block 402. High-pressure water is pumped into the heat dissipation tank 103 through the gap. As the high-pressure water is pumped in, the heat dissipation tank 103 begins to fill with water until the water level coincides with the steel plate. The water pressure causes the compensation block 104 to lift the partition 1031. Because the height that the partition 1031 can be raised is limited by the steel plate and the movable groove 1032, when the partition 1031 is lifted, it will abut against the steel plate, thereby causing the cooling water level to rise to coincide with the steel plate. The hinge between the connecting part 1041 and the plug 1042 The connection is configured such that if there is a certain angle difference between adjacent chain plates 102, the inclination angle of the plug 1042 at the hinge point complements the angle between adjacent chain plates 102, so that the contact surface of the partition plate 1031 still overlaps with the steel plate after it is lifted. The above configuration ensures that the lower surface of the steel plate is continuously in contact with the cooling water during laminar flow cooling, thereby ensuring the temperature uniformity of the steel plate during cooling and thus ensuring the production quality of the steel plate. Another part of the high-pressure water flows into the previous chain plate 102 through the hose 6.As the sliding block 402 moves, it abuts against the connecting block 405, thus moving along the connecting groove 404 towards the sealing ring 302. Since the inner ring of the lower half of the sealing ring 302 is fixedly connected to the water column 301, the upper half of the sealing ring 302 is simultaneously squeezed outwards by the connecting block 405, causing the upper half of the sealing ring 302 to become an "umbrella" shape and its diameter to expand until it fits against the sealing part 105. This achieves a sealed connection between the water column 301 and the heat dissipation groove 103. Furthermore, the water pressure, combined with the backflow of the "umbrella" shaped structure, further seals the connection. The ring 302 further presses against the sealing part 105. When the water column 301 is parallel to the ground, that is, when the water column 301 and the chain plate 102 move laterally synchronously, the water pressure output by the water column 301 is at its maximum, and the sliding block 402 is at its lowest displacement point. Through the cooperation of the above two, the sealing performance of the connection between the water column 301 and the heat dissipation groove 103 is guaranteed. As the water column 301 moves with the chain plate 102, the rotating plate 201 is pulled by the water pipe 601 and rotates together with the water column 301. As the water column 301 moves along the rotation path of the chain 303 to... At the right-hand arc, the water column 301 begins to tilt, and the sliding block 402 gradually moves away from the water tank 401, causing the sliding block 402 to move outwards due to elastic force. This reduces the gap between the sliding block 402 and the water tank 401, thus decreasing the corresponding water pressure. At this time, the connecting block 405 moves along the connecting groove 404 into the water inlet due to elastic force, causing the sealing ring 302 to disengage from the sealing part 105. The gap between the sliding block 402 and the water tank 401 narrows, preventing high-pressure water from exiting the water column 301, thereby protecting water resources. The water column 301 moves along the arc path of the chain 303 to the disconnection point 3042, causing the height of the water column 301 to no longer connect with the heat dissipation trough 103 below. During this process, the water columns 301, originally located on both sides of the chain 303, are relatively symmetrical in position. When one end of the water column 301 separates from the heat dissipation trough 103, the other end, after entering the connection point 3041, synchronously connects with the heat dissipation trough 103, thus ensuring a constant water flow rate within the heat dissipation trough. This arrangement ensures stable water flow and pressure.

[0039] Because the space below the chain plate 102 is too compact and the transport length of the chain plate 102 is relatively long, the length of the chain 303 is controlled near the main body of the hot rolling mill (not shown in the figure). Through the rotation of the chain 303, each chain plate 102 has enough water in its heat dissipation groove 103 when it first contacts the steel plate. The steel plate moves away with the chain plate 102, but all the chain plates 102 are connected by hoses 6. Although the chain plates 102 that are moving away cannot be directly connected to the water column 301, they can still be transported with cooling water through the hoses 6, thereby achieving long-distance cooling water transport. This is achieved by connecting adjacent chain plates 102. By alternating the use of the first water channel 1061 and the second water channel 1062 in different water channel sections 106, the position of the water outlet of the heat dissipation trough 103 is changed. By setting the first water channel 1061, water seeps into the middle of the contact surface between the heat dissipation trough 103 and the steel plate. By setting the second water channel 1062, water seeps into both sides of the contact surface between the heat dissipation trough 103 and the steel plate. This avoids the low-temperature water from always contacting the same side of the steel plate and heating up before flowing to the other side of the steel plate. By setting different hoses 6 on the chain plate 102, alternating cooling of small areas of the steel plate is achieved, ensuring an average cooling rate for the entire area of ​​the steel plate, thereby ensuring the production quality of the steel plate.

[0040] The specific embodiment of the present invention has been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the embodiments described above. For those skilled in the art, various changes, modifications, substitutions, and variations made to these embodiments without departing from the principles and ideas of the present invention should still fall within the protection scope of the present invention.

Claims

1. A continuous hot rolling mill for metallurgical manufacturing, comprising a hot rolling mill body, a slide rail (101), a conveyor chain, and chain plates (102), wherein the slide rail (101) is arranged in a straight line at the outlet of the hot rolling mill body, the conveyor chain is installed on the slide rail (101), and chain plates (102) are installed on multiple links of the conveyor chain, characterized in that, The chain plate (102) is provided with heat dissipation grooves (103), and the heat dissipation grooves (103) between adjacent chain plates (102) are connected by a flexible hose (6). The inner wall of the slide rail (101) is provided with a water collection tank (2), and a rotating plate (201) is rotatably installed on the water collection tank (2). The lower end face of the water collection tank (2) is provided with a water inlet, and the rotating plate (201) is provided with a water outlet (204). The water inlet (204) and the water outlet (203) are connected. The outer edge of the water collection tank (2) is provided with a connecting component (3), which includes a water delivery column (301) and a chain (303). The chain (303) is rotatably mounted on the slide (101), and the water delivery column (301) is set on the chain (303). The water delivery column (301) is connected to the water outlet (203). The connecting component (3) makes the water delivery column (301) intermittently connected to the heat dissipation groove (103) by rotating the chain (303).

2. The continuous hot rolling equipment for metallurgical manufacturing according to claim 1, characterized in that, The connecting assembly (3) includes a guide rail (304), a water supply pipe (601), and a sealing part (105). The chain (303) is installed on the outer edge of the water collection tank (2). A plurality of water supply columns (301) are arranged in a linear array and fixedly connected to the chain (303). The guide rail (304) is fixedly installed on the slide rail (101) and is equidistant from the chain (303). The water supply columns (301) are slidably connected to the guide rail (304). The heat dissipation groove (103) communicates with the water supply columns (301) through the sealing part (105). 3) The connection channel is provided with a water passage (106), which is connected to the hose (6). A single outlet (204) is connected to a single water column (301) through a water supply pipe (601). The guide rail (304) includes a connecting part (3041) and a disconnecting part (3042). The connecting part (3041) is equidistant from the flip point of the chain plate (102). The water column (301) on the connecting part (3041) is connected to the heat dissipation groove (103). The water column (301) on the disconnecting part (3042) is located outside the heat dissipation groove (103).

3. The continuous hot rolling equipment for metallurgical manufacturing according to claim 2, characterized in that, A water delivery channel (401) is provided at the connection between the water delivery channel (301) and the heat dissipation channel (103). A sliding block (402) is elastically connected inside the water delivery channel (401). The sliding block (402) coincides with the outlet end of the water delivery channel (401). A trigger block (403) that abuts against the sliding block (402) is elastically connected inside the heat dissipation channel (103). A sliding groove (107) is provided inside the water passage (106) along the opening direction of the heat dissipation channel (103). A slider (108) is slidably connected inside the sliding groove (107). The slider (108) abuts against the inner wall of the water passage (106).

4. The continuous hot rolling equipment for metallurgical manufacturing according to claim 2, characterized in that, A sealing ring (302) is fitted around the outer edge of the water delivery column (301). The lower inner ring of the sealing ring (302) is fixedly connected to the water delivery tank (401). The sealing part (105) is in clearance fit with the outer ring of the sealing ring (302). A connecting groove (404) is opened laterally on both sides of the water delivery tank (401). A connecting block (405) is provided in the connecting groove (404). The connecting block (405) passes through the connecting groove (404) and is slidably connected to the connecting groove (404). One end of the connecting block (405) is also provided with an inclined surface (4021). The inclined surface (4021) abuts against the sliding block (402). The other end of the connecting block (405) abuts against the upper inner ring of the sealing ring (302).

5. A continuous hot rolling mill for metallurgical manufacturing according to claim 3, characterized in that, The connecting part (3041) and the disconnecting part (3042) are symmetrical about the center line of the water collection tank (2).

6. A continuous hot rolling mill for metallurgical manufacturing according to claim 2, characterized in that, The water passage section (106) includes a first water passage (1061) and a second water passage (1062). The first water passage (1061) and the second water passage (1062) are respectively disposed in the water passage section (106) of the adjacent chain plate. The first water passage (1061) is connected to the middle of the heat dissipation groove (103), and the second water passage (1061) is connected to both ends of the heat dissipation groove (103).

7. A continuous hot rolling mill for metallurgical manufacturing according to claim 2, characterized in that, The heat dissipation groove (103) includes a partition (1031) and a movable groove (1032). The movable groove (1032) is opened around the inner wall of the chain plate (102). The lowest surface of the movable groove (1032) is 1-2 cm higher than the opening end of the heat dissipation groove (103). The partition (1031) is slidably connected to the movable groove (1032). A compensation block (104) is elastically connected to the opening end of the heat dissipation groove (103). The compensation block (104) abuts against the partition (1031).

8. A continuous hot rolling mill for metallurgical manufacturing according to claim 8, characterized in that, The compensation block (104) includes a connecting part (1041) and a plug (1042). One end of the connecting part (1041) is slidably connected to the heat dissipation groove (103), and the other end is hinged to the plug (1042). The upper surface of the plug (1042) coincides with the opening end of the heat dissipation groove (103).

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