Cooling structure for hot rolling

By adopting a heat-conducting cooling structure and a recycled coolant supply and discharge pipeline structure in the hot-rolled cooling equipment, the problem of hot steam generation and recycling operation caused by direct contact with the steel plate in the prior art is solved, and an efficient and safe cooling effect is achieved.

CN222607572UActive Publication Date: 2025-03-14PANSHI ZHUCHENG SEAMLESS STEEL TUBE CO LTD
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Patent Information

Application Number
CN202420987377.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-09
Publication Date
2025-03-14
Estimated Expiration
2034-05-09

AI Technical Summary

Technical Problem

In existing hot-rolled cooling equipment, water and steel plates are in direct contact with cooling, resulting in a large amount of hot steam, posing a safety hazard, and there are many impurities in the water, which makes recycling operation troublesome.

Method used

The heat-conducting cooling structure is adopted, and heat is transferred to the steel plate through the lower and upper heat-conducting cooling devices. The steel plate is conveyed by a conveying roller. The cooling water is recycled through the coolant supply and discharge pipeline structure to avoid direct contact between the water and the steel plate.

Benefits of technology

It effectively avoids the generation of hot steam, reduces safety risks, and simplifies the recycling operation of water, improving cooling efficiency and equipment safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a hot rolling cooling structure, which relates to the technical field of hot rolling cooling equipment, and comprises a lower side heat conduction type cooling device, a conveying roller, an upper side heat conduction type cooling device, a cooling-water machine, a cooling liquid supply pipeline structure and a cooling liquid discharge pipeline structure, and hoisting pieces are uniformly and fixedly assembled on the upper surface of the upper side heat conduction type cooling device; according to the device, a hot-rolled steel plate is conveyed through conveying rollers, the steel plate penetrates through a gap between a lower side heat conduction type cooling device and an upper side heat conduction type cooling device, and cooling water is introduced into the lower side heat conduction type cooling device and the upper side heat conduction type cooling device; the lower side heat conduction type cooling device and the upper side heat conduction type cooling device are used for transferring heat to the steel plate, a heat conduction type cooling mode is adopted, water does not need to make direct contact with the steel plate, generation of a large amount of hot steam is avoided, and water cyclic utilization is facilitated.
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Description

Technical Field

[0001] The utility model relates to the technical field of hot rolling cooling equipment, in particular to a hot rolling cooling structure. Background Art

[0002] Hot rolling is the opposite of cold rolling. Cold rolling is the rolling carried out below the recrystallization temperature, while hot rolling is the rolling carried out above the recrystallization temperature. Simply put, a piece of steel billet is heated and then rolled through several passes, then trimmed and corrected into a steel plate. This is called hot rolling. During the hot rolling production process, the hot-rolled piece needs to be cooled.

[0003] Existing cooling methods usually use water to directly contact the hot-rolled steel plates for cooling, which will produce a lot of hot steam. If the hot steam is not handled properly, it may easily cause safety hazards. In addition, there are many impurities in the water after use, which needs to be filtered out before recycling, which is troublesome to operate. Utility Model Content

[0004] The utility model aims to provide a hot-rolled cooling structure, which uses a conveying roller to transport the hot-rolled steel plate, and the steel plate passes through the gap between a lower heat conduction cooling device and an upper heat conduction cooling device, and cooling water is introduced into the lower heat conduction cooling device and the upper heat conduction cooling device, and heat is transferred to the steel plate by using the lower heat conduction cooling device and the upper heat conduction cooling device, and a heat conduction cooling method is adopted, and there is no need for direct contact between water and the steel plate, so a large amount of hot steam is avoided, and the recycling of water is convenient.

[0005] The utility model provides a hot rolling cooling structure, comprising:

[0006] The lower side heat conduction cooling device has two devices arranged side by side on the left and right sides;

[0007] The lower heat conduction cooling device is evenly and horizontally provided with strip-shaped spacing sections, and a conveying roller is fixedly installed in the strip-shaped spacing sections;

[0008] An upper heat conduction cooling device is located directly above the lower heat conduction cooling device, and a lifting member is evenly fixedly mounted on the upper surface of the upper heat conduction cooling device;

[0009] Chillers;

[0010] A coolant supply pipeline structure, which is fixedly connected to a position between the output end of the chiller, the input end of the lower heat conduction cooling device and the input end of the upper heat conduction cooling device;

[0011] The coolant discharge pipeline structure is fixedly connected between the input end of the chiller, the output end of the lower heat conduction cooling device and the output end of the upper heat conduction cooling device.

[0012] As a further optimization scheme, in order to cool the hot-rolled steel plate or pipe, the lower heat conduction cooling device includes:

[0013] The cavity heat conduction cooling blocks are four in parallel and arranged in front and back, the outer walls of the adjacent cavity heat conduction cooling blocks are fixedly connected with connecting pipes, the outer wall of the rearmost cavity heat conduction cooling block is fixedly connected with a liquid inlet pipe, and the outer wall of the frontmost cavity heat conduction cooling block is fixedly connected with a liquid outlet pipe;

[0014] The output end of the cooling liquid supply pipeline structure is fixedly connected to the liquid inlet pipe;

[0015] The output end of the coolant discharge pipeline structure is fixedly connected to the liquid outlet pipe;

[0016] A lifting guide structure is installed between the front and rear cavity heat conduction cooling blocks and the upper heat conduction cooling device.

[0017] As a further optimization scheme, in order to supply the cooling liquid after refrigeration in the chiller into the upper heat conduction cooling device and the lower heat conduction cooling device, the cooling liquid supply pipeline structure includes:

[0018] A liquid inlet guide pipe, on which a water pump is fixedly mounted;

[0019] The input end of the liquid inlet guide pipe is fixedly connected to the output end of the chiller, and the output end of the liquid inlet guide pipe is fixedly connected to the input end of the upper heat conduction cooling device and the liquid inlet pipe respectively;

[0020] The liquid inlet guide pipe is provided with a first corrugated pipe section near the liquid inlet pipe.

[0021] As a further optimization solution, in order to introduce the coolant containing heat into the chiller for cooling, the coolant discharge pipeline structure includes:

[0022] A liquid discharge guide pipe, the output end of which is fixedly connected to the input end of the chiller, and the input end of the liquid discharge guide pipe is fixedly connected to the output end of the upper heat conduction cooling device and the liquid outlet pipe respectively;

[0023] The liquid discharge guide pipe is provided with a second corrugated pipe section near the liquid outlet pipe.

[0024] As a further optimization solution, in order to conduction-cool the steel plate passing through, the cavity heat conduction cooling block includes:

[0025] Rectangular blocks;

[0026] A cooling liquid circulation cavity is provided in the rectangular block;

[0027] The upper surface of the rectangular block is evenly and movably engaged with balls.

[0028] As a further optimization solution, in order to transport the steel plate, the conveying roller includes:

[0029] There are two mounting plates, which are vertically fixedly assembled at both ends of the strip-shaped spacing section;

[0030] A roller, which is rotatably mounted between the left and right mounting plates;

[0031] The drive motor has a rotating shaft coaxially fixedly connected to one end of the roller close to the side wall of the upper heat conduction cooling device, and the housing of the drive motor is fixedly connected to the mounting plate on the same side.

[0032] As a further optimization scheme, in order to enrich the functions of the device, it also includes:

[0033] An operating table, wherein the lower heat conduction cooling device is located on the operating table;

[0034] A hot-rolled pipe cooling cylinder, which is inserted between the left and right lower heat conduction cooling devices;

[0035] The air-cooling cooling mechanism is arranged on the side wall of the upper heat-conducting cooling device, and the air-cooling cooling mechanism blows air toward the gap between the upper heat-conducting cooling device and the lower heat-conducting cooling device.

[0036] As a further optimization solution, in order to cool the hot-rolled pipe, the hot-rolled pipe cooling cylinder includes:

[0037] A heat-conducting outer cylinder, which is inserted between the left and right lower heat-conducting cooling devices;

[0038] The heat-conducting inner cylinder is inserted into the heat-conducting outer cylinder, and the interior of the heat-conducting inner cylinder forms a hot-rolled pipe insertion cavity.

[0039] As a further optimization scheme, in order to air-cool the hot-rolled steel plate, the air-cooling mechanism includes:

[0040] Fixed plate;

[0041] A fixing bolt, which fixes the fixing plate to the side wall of the upper heat conduction cooling device;

[0042] The cooling fan is fixedly assembled in the reserved through hole on the fixing plate.

[0043] As a further optimization solution, in order to guide the lifting and lowering of the upper heat conduction cooling device, the lifting and lowering guide structure includes:

[0044] A lower horizontal plate, which is fixedly mounted on the side wall of the cavity heat conduction cooling block;

[0045] An upper horizontal plate, which is fixedly mounted on the side wall of the upper heat conduction cooling device, and the upper horizontal plate is located directly above the lower horizontal plate;

[0046] The lower end of the guide rod is vertically fixedly connected to the upper end of the lower horizontal plate, and the upper end of the guide rod passes through the upper horizontal plate.

[0047] The utility model provides a hot rolling cooling structure through improvement, which has the following improvements and advantages compared with the prior art:

[0048] Firstly, the device uses conveying rollers to transport the hot-rolled steel plates, and the steel plates pass through the gap between the lower heat conduction cooling device and the upper heat conduction cooling device. Cooling water is introduced into both the lower heat conduction cooling device and the upper heat conduction cooling device. Heat is transferred to the steel plates by using the lower heat conduction cooling device and the upper heat conduction cooling device. The heat conduction cooling method is adopted, and there is no need for direct contact between water and the steel plates, thereby avoiding the generation of a large amount of hot steam and facilitating the recycling of water.

[0049] Secondly, the hot rolled pipe cooling cylinder is used to cool the pipe after hot rolling, thereby increasing the application scope of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0051] Figure 1 It is a schematic diagram of the structure of the utility model;

[0052] Figure 2 It is a schematic diagram of the structure of the conveying roller and the lower heat conduction cooling device of the utility model;

[0053] Figure 3 This is a schematic diagram of the structure of the cavity heat conduction cooling block of the utility model;

[0054] Figure 4 This is a schematic diagram of the structure of the hot-rolled pipe cooling cylinder of the utility model;

[0055] Figure 5 It is a schematic diagram of the structure of the air-cooling mechanism of the utility model.

[0056] Description of reference numerals:

[0057] 1-upper heat conduction cooling device, 2-transmission roller, 21-mounting plate, 22-roller, 23-driving motor, 3-lower heat conduction cooling device, 31-cavity heat conduction cooling block, 311-rectangular block, 312-cooling liquid circulation cavity, 313-ball, 32-connecting pipe, 33-liquid outlet pipe, 34-liquid inlet pipe, 4-hanging parts, 5-air cooling mechanism, 51-fixing plate, 52-fixing bolt, 53- Cooling fan, 6-cooling liquid supply pipeline structure, 61-liquid inlet guide pipe, 62-water pump, 63-first corrugated pipe section, 7-cooling liquid discharge pipeline structure, 71-discharge guide pipe, 72-second corrugated pipe section, 8-chiller, 9-hot-rolled pipe cooling cylinder, 91-heat-conducting outer cylinder, 92-heat-conducting inner cylinder, 93-hot-rolled pipe insertion cavity, 10-operating table, 11-lower side horizontal plate, 12-upper side horizontal plate, 13-guide rod. DETAILED DESCRIPTION

[0058] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0059] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0060] In the description of the present utility model, it should be understood that the terms "first" and "second" are only used for descriptive purposes, and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0061] See also Figure 1-5 The utility model provides a technical solution: a hot rolling cooling structure, comprising:

[0062] The lower heat conduction cooling device 3 has two devices arranged side by side on the left and right sides;

[0063] The lower heat conduction cooling device 3 is evenly and horizontally provided with strip-shaped spacers, in which the conveying rollers 2 are fixedly installed, and the strip-shaped spacers are the gaps between the adjacent cavity heat conduction cooling blocks 31;

[0064] The upper heat conduction cooling device 1 is located directly above the lower heat conduction cooling device 3. The upper surface of the upper heat conduction cooling device 1 is evenly fixed with a hoisting member 4. The hoisting member 4 is used to connect a crane to lift the upper heat conduction cooling device 1 and control the lifting. It is suitable for cooling steel plates of different thicknesses.

[0065] A water chiller 8, used for cooling the circulating coolant, in this embodiment the coolant is specifically water;

[0066] The cooling liquid supply pipeline structure 6 is fixedly connected to a position between the output end of the chiller 8, the input end of the lower heat conduction cooling device 3 and the input end of the upper heat conduction cooling device 1;

[0067] The coolant discharge pipeline structure 7 is fixedly connected to a position between the input end of the chiller 8, the output end of the lower heat conduction cooling device 3 and the output end of the upper heat conduction cooling device 1.

[0068] In some embodiments, in order to cool the hot-rolled steel plate or pipe, the lower heat conduction cooling device 3 includes:

[0069] There are four cavity heat conduction cooling blocks 31 arranged in parallel in the front and back, and the outer walls of adjacent cavity heat conduction cooling blocks 31 are fixedly connected with a connecting pipe 32, the outer wall of the rearmost cavity heat conduction cooling block 31 is fixedly connected with a liquid inlet pipe 34, and the outer wall of the frontmost cavity heat conduction cooling block 31 is fixedly connected with a liquid outlet pipe 33;

[0070] The output end of the coolant supply pipeline structure 6 is fixedly connected to the liquid inlet pipe 34, and the liquid inlet pipe 34 is used for liquid inlet of the lower heat conduction cooling device 3;

[0071] The output end of the coolant discharge pipeline structure 7 is fixedly connected to the liquid outlet pipe 33, and the liquid outlet pipe 33 is used for discharging the liquid of the lower heat conduction cooling device 3;

[0072] A lifting guide structure is installed between the front and rear cavity heat conduction cooling blocks 31 and the upper heat conduction cooling device 1 .

[0073] In some embodiments, in order to supply the cooling liquid after refrigeration in the chiller 8 to the upper heat conduction cooling device 1 and the lower heat conduction cooling device 3, the cooling liquid supply pipeline structure 6 includes:

[0074] A liquid inlet guide pipe 61, on which a water pump 62 is fixedly mounted, the water pump 62 is connected to an external power supply and is used to pump the coolant out of the chiller 8;

[0075] The input end of the liquid inlet guide pipe 61 is fixedly connected to the output end of the chiller 8, and the output end of the liquid inlet guide pipe 61 is fixedly connected to the input end of the upper heat conduction cooling device 1 and the liquid inlet pipe 34 respectively;

[0076] A first bellows section 63 is provided near the liquid inlet pipe 34 of the liquid inlet guide pipe 61. The first bellows section 63 is connected to an elastic bellows at the vacant end of the liquid inlet guide pipe 61. The elastic bellows can meet the lifting requirements of the upper heat conduction cooling device 1.

[0077] In some embodiments, in order to introduce the coolant containing heat into the chiller 8 for refrigeration, the coolant discharge pipeline structure 7 includes:

[0078] The drain guide pipe 71, whose output end is fixedly connected to the input end of the chiller 8, and whose input end is fixedly connected to the output end of the upper heat conduction cooling device 1 and the liquid outlet pipe 33;

[0079] A second bellows section 72 is provided near the liquid outlet pipe 33 of the liquid discharge guide pipe 71 . The second bellows section 72 is connected to an elastic bellows at the vacant end of the liquid discharge guide pipe 71 . The elastic bellows can meet the lifting requirements of the upper heat conduction cooling device 1 .

[0080] In some embodiments, in order to conduction-cool the steel plate passing through, the cavity heat conduction cooling block 31 includes:

[0081] Rectangular block 311;

[0082] The cooling liquid circulation cavity 312 is opened in the rectangular block 311. The top surface shell of the cooling liquid circulation cavity 312 near the gap between adjacent balls 313 is thinner, so as to better transfer the temperature;

[0083] The upper surface of the rectangular block 311 is evenly and movably connected with a ball 313 , and the upper end of the ball 313 is at the same height as the upper end of the roller 22 . The conveyed steel plate contacts the rotating ball 313 , making the conveying process smoother.

[0084] In some embodiments, in order to transport the steel plate, the conveying roller 2 includes:

[0085] There are two mounting plates 21, which are vertically fixedly assembled at both ends of the strip-shaped spacer segment;

[0086] The roller 22 is rotatably mounted between the left and right mounting plates 21;

[0087] The driving motor 23 has a rotating shaft coaxially fixedly connected to one end of the roller 22 close to the side wall of the upper heat conduction cooling device 1, and the housing of the driving motor 23 is fixedly connected to the mounting plate 21 on the same side. The driving motor 23 is connected to an external power source, and the roller 22 is driven to rotate by the driving motor 23. A plurality of rotating rollers 22 are used to transport the hot-rolled steel plate, and the roller 22 is made of high-temperature resistant material.

[0088] In some embodiments, in order to enrich the functions of the device, the following is further included:

[0089] An operating table 10, on which the lower heat conduction cooling device 3 is located;

[0090] The hot-rolled pipe cooling cylinder 9 is inserted between the left and right lower heat conduction cooling devices 3;

[0091] The air-cooling cooling mechanism 5 is arranged on the side wall of the upper heat conduction cooling device 1, and blows air toward the gap between the upper heat conduction cooling device 1 and the lower heat conduction cooling device 3; the number of air-cooling cooling mechanisms 5 can be set to multiple, and convection can be generated by symmetrically arranging them on both sides to enhance the air-cooling cooling effect.

[0092] In some embodiments, in order to cool the hot-rolled pipe, the hot-rolled pipe cooling cylinder 9 comprises:

[0093] The heat-conducting outer cylinder 91 is inserted between the left and right lower heat-conducting cooling devices 3;

[0094] The heat-conducting inner cylinder 92 is inserted into the heat-conducting outer cylinder 91, and the interior of the heat-conducting inner cylinder 92 forms a hot-rolled pipe insertion cavity 93; the heat-conducting inner cylinder 92 can be pulled out and replaced, and the heat-conducting inner cylinder 92 with a different inner diameter of the hot-rolled pipe insertion cavity 93 can be replaced, which is suitable for use with pipes of different sizes.

[0095] In some embodiments, in order to air-cool the hot-rolled steel plate, the air-cooling mechanism 5 includes:

[0096] Fixed plate 51;

[0097] A fixing bolt 52, which fixes the fixing plate 51 to the side wall of the upper heat conduction cooling device 1;

[0098] The heat dissipation fan 53 is fixedly assembled in the reserved through hole on the fixing plate 51; a plurality of heat dissipation fans 53 can be provided to ensure the air-cooling effect.

[0099] In some embodiments, in order to guide the lifting and lowering of the upper heat conduction cooling device 1, the lifting and lowering guide structure includes:

[0100] The lower side horizontal plate 11 is fixedly mounted on the side wall of the cavity heat conduction cooling block 31;

[0101] An upper horizontal plate 12, which is fixedly mounted on the side wall of the upper heat conduction cooling device 1, and the upper horizontal plate 12 is located directly above the lower horizontal plate 11;

[0102] The lower end of the guide rod 13 is vertically fixedly connected to the upper end of the lower horizontal plate 11 , and the upper end of the guide rod 13 passes through the upper horizontal plate 12 .

[0103] Working principle:

[0104] The device uses a conveying roller 2 to convey the hot-rolled steel plate, and the steel plate passes through the gap between the lower heat conduction cooling device 3 and the upper heat conduction cooling device 1. Cooling water is introduced into both the lower heat conduction cooling device and the upper heat conduction cooling device. The upper surface of the upper heat conduction cooling device 1 is evenly fixed with a hoisting member 4, which is used to connect a crane to lift the upper heat conduction cooling device 1 to control the lifting, and is suitable for cooling steel plates of different thicknesses.

[0105] Heat is transferred to the steel plate by using the lower heat conduction cooling device 3 and the upper heat conduction cooling device 1. A heat conduction cooling method is adopted. There is no need for direct contact between water and the steel plate. Multiple air-cooling cooling mechanisms 5 can be provided, and convection can be generated by symmetrically arranging them on both sides to enhance the air-cooling cooling effect. The air cooling and heat conduction cooling methods cooperate to speed up the heat exchange rate.

[0106] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A hot rolling cooling structure, characterized in that: include: The lower heat conduction cooling device (3) has two devices arranged side by side on the left and right sides; The lower heat conduction cooling device (3) is evenly and laterally provided with strip-shaped spacing sections, and a conveying roller (2) is fixedly installed in the strip-shaped spacing sections; An upper heat conduction cooling device (1) is located directly above the lower heat conduction cooling device (3), and a hanging component (4) is evenly fixedly mounted on the upper surface of the upper heat conduction cooling device (1); Chiller (8); A cooling liquid supply pipeline structure (6) is fixedly connected to a position between an output end of a chiller (8), an input end of a lower heat conduction cooling device (3) and an input end of an upper heat conduction cooling device (1); The coolant discharge pipeline structure (7) is fixedly connected to a position between the input end of the chiller (8), the output end of the lower heat conduction cooling device (3) and the output end of the upper heat conduction cooling device (1).

2. A hot rolling cooling structure according to claim 1, characterized in that: The lower heat conduction cooling device (3) comprises: The cavity heat conduction cooling blocks (31) are four in parallel and arranged in a front-to-back manner, the outer walls of adjacent cavity heat conduction cooling blocks (31) are fixedly connected by connecting pipes (32), the outer wall of the rearmost cavity heat conduction cooling block (31) is fixedly connected by a liquid inlet pipe (34), and the outer wall of the frontmost cavity heat conduction cooling block (31) is fixedly connected by a liquid outlet pipe (33); The output end of the cooling liquid supply pipeline structure (6) is fixedly connected to the liquid inlet pipe (34); The output end of the coolant discharge pipeline structure (7) is fixedly connected to the liquid outlet pipe (33); A lifting guide structure is installed between the front and rear cavity heat conduction cooling blocks (31) and the upper heat conduction cooling device (1).

3. A hot rolling cooling structure according to claim 2, characterized in that: The cooling liquid supply pipeline structure (6) comprises: A liquid inlet guide pipe (61) on which a water pump (62) is fixedly mounted; The input end of the liquid inlet guide pipe (61) is fixedly connected to the output end of the chiller (8), and the output end of the liquid inlet guide pipe (61) is fixedly connected to the input end of the upper heat conduction cooling device (1) and the liquid inlet pipe (34) respectively; The liquid inlet guide pipe (61) is provided with a first corrugated pipe section (63) near the liquid inlet pipe (34).

4. A hot rolling cooling structure according to claim 2, characterized in that: The coolant discharge pipeline structure (7) comprises: A liquid discharge guide pipe (71), the output end of which is fixedly connected to the input end of the chiller (8), and the input end of the liquid discharge guide pipe (71) is fixedly connected to the output end of the upper heat conduction cooling device (1) and the liquid outlet pipe (33) respectively; The liquid discharge guide pipe (71) is provided with a second corrugated pipe section (72) near the liquid outlet pipe (33).

5. A hot rolling cooling structure according to claim 2, characterized in that: The cavity heat conduction cooling block (31) comprises: Rectangular block (311); A cooling liquid circulation cavity (312) is provided in the rectangular block (311); The upper surface of the rectangular block (311) is evenly and movably engaged with a rolling ball (313).

6. A hot rolling cooling structure according to claim 1, characterized in that: The conveying roller (2) comprises: There are two mounting plates (21), and the two mounting plates (21) are vertically fixedly assembled at two ends of the strip-shaped spacing section; A roller (22) is rotatably mounted between the left and right mounting plates (21); The drive motor (23) has a rotating shaft coaxially fixedly connected to one end of the roller (22) close to the side wall of the upper heat conduction cooling device (1), and the housing of the drive motor (23) is fixedly connected to the mounting plate (21) on the same side.

7. A hot rolling cooling structure according to claim 1, characterized in that: Also includes: An operating table (10), wherein the lower heat conduction cooling device (3) is located on the operating table (10); A hot-rolled pipe cooling cylinder (9) which is inserted between the left and right lower heat conduction cooling devices (3); An air-cooling cooling mechanism (5) is arranged on the side wall of the upper heat-conducting cooling device (1), and the air-cooling cooling mechanism (5) blows air toward the gap between the upper heat-conducting cooling device (1) and the lower heat-conducting cooling device (3).

8. A hot rolling cooling structure according to claim 7, characterized in that: The hot-rolled pipe cooling cylinder (9) comprises: A heat-conducting outer cylinder (91) inserted between the left and right lower heat-conducting cooling devices (3); The heat-conducting inner cylinder (92) is inserted into the heat-conducting outer cylinder (91), and the interior of the heat-conducting inner cylinder (92) forms a hot-rolled pipe insertion cavity (93).

9. A hot rolling cooling structure according to claim 7, characterized in that: The air-cooling mechanism (5) comprises: Fixed plate (51); A fixing bolt (52) which fixes the fixing plate (51) to the side wall of the upper heat conduction cooling device (1); The heat dissipation fan (53) is fixedly assembled in a reserved through hole on the fixing plate (51).

10. A hot rolling cooling structure according to claim 2, characterized in that: The lifting guide structure comprises: A lower horizontal plate (11) fixedly mounted on a side wall of the cavity heat conduction cooling block (31); An upper horizontal plate (12) is fixedly mounted on a side wall of the upper heat conduction cooling device (1), wherein the upper horizontal plate (12) is located directly above the lower horizontal plate (11); The lower end of the guide rod (13) is vertically fixedly connected to the upper end of the lower horizontal plate (11), and the upper end of the guide rod (13) penetrates the upper horizontal plate (12).