Rapid cooling structure of blast furnace

Abstract

The invention belongs to the technical field of cooling equipment, and discloses a blast furnace rapid cooling structure which is technically characterized by comprising a furnace shell, a water cooling wall is fixedly mounted on the inner side of the furnace shell, a cooling pipe is arranged in the water cooling wall, cooling plates are fixedly mounted at different heights of the surface of the furnace shell, and cooling cavities are formed in the cooling plates; a bearing seat is slidably mounted in the cooling cavity in the vertical direction, a heat dissipation net plate is fixedly mounted on the surface of the bearing seat, ventilation holes are formed in the surface of the cooling plate, a positioning assembly is arranged on the surface of the furnace shell, and a heat dissipation mechanism matched with the ventilation holes is arranged on the surface of the cooling plate. The heat dissipation mechanism comprises a sealing assembly and a ventilation assembly, the ventilation assembly and the sealing assembly are arranged to be matched with each other, the opening and closing states of the ventilation holes can be automatically switched, then evaporation of water attached to the surface of the cooling cavity can be accelerated, and the heat dissipation and cooling speed of the cooling plate and the water cooling wall is further increased.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cooling equipment, in particular to a high furnace rapid cooling structure. BACKGROUND

[0002] A large number of industrial furnaces adopt water-cooled cooling structure, and the cooling wall is usually one of the key equipment of such furnaces, such as the cooling wall of an iron-making blast furnace. Such equipment is usually cast from iron, copper or steel, and a cooling channel made of seamless steel pipe is cast in the wall body. High-pressure and high-speed cooling liquid is introduced into the cooling channel of the cooling wall to take away the heat of the cooling wall and maintain the safe and stable operation of the industrial furnace.

[0003] The cooling component structure of the existing blast furnace is relatively simple, and only the heat is taken away by the flow of cooling liquid, the heat exchange efficiency is low, the overall heat dissipation and cooling speed is slow, the blast furnace cannot be quickly cooled, and the use effect is poor. SUMMARY

[0004] The purpose of the present application is to provide a high furnace rapid cooling structure to solve the problems raised in the background art.

[0005] To achieve the above purpose, the present application provides the following technical scheme:

[0006] A high furnace rapid cooling structure, comprising a furnace shell, a water-cooled wall is fixedly installed on the inner side of the furnace shell, a cooling pipe is arranged in the water-cooled wall, a plurality of cooling plates arranged in a ring shape are fixedly installed at different heights on the surface of the furnace shell, the vertical section of the cooling plate is in an inverted L-shaped structure, the cooling plate extends into the furnace shell and is connected with the water-cooled wall, a cooling cavity is formed in the cooling plate, a flow guide hole communicating with the cooling pipe is formed at the top of the side wall of the cooling cavity, a return pipe communicating with the cooling pipe is arranged on the bottom wall of the cooling cavity, a bearing seat is slidably installed in the cooling cavity in the vertical direction, a heat dissipation mesh plate is fixedly installed on the surface of the bearing seat, a plurality of evenly distributed ventilation holes communicating with the cooling cavity are formed on the surface of the cooling plate, a positioning assembly matched with the heat dissipation mesh plate is arranged on the surface of the furnace shell, the positioning assembly is used to control the movement of the heat dissipation mesh plate and the bearing seat in the cooling cavity in the vertical direction, a heat dissipation mechanism matched with the ventilation hole is arranged on the surface of the cooling plate, the heat dissipation mechanism comprises a sealing assembly and a ventilation assembly, the sealing assembly is arranged in the ventilation hole and is used to control the ventilation hole to be in a closed state, the ventilation assembly is arranged in the cooling cavity and is connected with the sealing assembly, and the ventilation assembly controls the ventilation hole to switch to an open state by cooperating with the sealing assembly.

[0007] As a further scheme of the present application: the positioning assembly comprises a top groove opened downward in the top wall of the cooling plate and matched with the heat dissipation mesh plate, a connecting rod is fixedly installed at the top end of the heat dissipation mesh plate, one end of the connecting rod away from the heat dissipation mesh plate penetrates through the top groove and extends to the outside of the cooling plate, a plurality of horizontal columns are rotationally installed on the surface of the furnace shell and are annularly distributed and located directly above the cooling plate, a control disc is fixedly installed at the end of each horizontal column, a traction rope is arranged on the surface of the control disc and deviates from the center of the control disc, one side of the traction rope away from the control disc is connected with the plurality of connecting rods directly below, and a driving member matched with the horizontal column is arranged on the surface of the furnace shell and is used to control the rotation of the horizontal column on the surface of the furnace shell.

[0008] As a further scheme of the present application: the driving member comprises a positioning gear disc fixedly installed on the surface of the horizontal column, an annular gear ring is rotationally installed on the surface of the furnace shell, the gear ring is in meshing connection with the positioning gear disc, a motor is fixedly installed on the outside of the furnace shell, a transmission gear disc is fixedly installed on the output shaft of the motor, and the transmission gear disc is in meshing connection with the gear ring.

[0009] As a further scheme of the present application: the sealing assembly comprises a sealing plate rotationally installed in the ventilation hole, a connecting rope is fixedly installed on the outer side wall of the sealing plate, and a counterweight ball is fixedly installed on one end of the connecting rope away from the sealing plate and extending to the outside of the cooling plate.

[0010] As a further scheme of the present application: the ventilation assembly comprises a control plate slidingly installed in the cooling cavity in the vertical direction, a positioning main rope is fixedly installed on the bottom wall of the control plate, a plurality of positioning branch ropes are respectively fixedly installed on the surface of the positioning main rope at different heights, and one end of each positioning branch rope away from the positioning main rope is connected with the sealing plate.

[0011] As a further scheme of the present application: two groups of guide rods are fixedly installed in the cooling cavity in opposite directions, and the guide rods are in sliding connection with the bearing seat in the vertical direction.

[0012] As a further scheme of the present application: the density of the bearing seat and the heat dissipation mesh plate is greater than the density of water.

[0013] Compared with the prior art, the present application has the following beneficial effects: through the cooperation of the positioning assembly, the bearing seat, the backflow hole and the backflow pipe, an appropriate amount of cooling water can be intermittently controlled to fill into the cooling cavity in the cooling plate, and through the evaporation of water on the surface of the heat dissipation mesh plate, the heat dissipation and cooling speed of the cooling plate and the water-cooled wall can be further improved.

[0014] The cooling water is filled and discharged in the cooling cavity, and through the cooperation of the ventilation assembly and the sealing assembly, the opening and closing state of the ventilation hole can be automatically switched, thereby accelerating the evaporation of the water attached to the surface of the cooling cavity, and further improving the heat dissipation and cooling speed of the cooling plate and the water cooling wall. The problem of low heat exchange efficiency, unable to quickly cool the blast furnace, and poor use effect by only removing heat through the flow of cooling liquid is solved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A perspective structural schematic view of a blast furnace rapid cooling structure provided in an embodiment of the present application.

[0016] Figure 2 A front view structural schematic view of a blast furnace rapid cooling structure provided in an embodiment of the present application.

[0017] Figure 3 A cooling plate and its connecting structure schematic view in a blast furnace rapid cooling structure provided in an embodiment of the present application.

[0018] Figure 4 An internal section view structural schematic view of a cooling plate in a blast furnace rapid cooling structure provided in an embodiment of the present application.

[0019] Figure 5 A heat dissipation mesh plate and its connecting structure schematic view in a blast furnace rapid cooling structure provided in an embodiment of the present application.

[0020] Figure 6 A structure schematic view of a heat dissipation mechanism in a blast furnace rapid cooling structure provided in an embodiment of the present application. Figure 1 An enlarged structure schematic view of A in the above.

[0021] Figure 7 A structure schematic view of a heat dissipation mechanism in a blast furnace rapid cooling structure provided in an embodiment of the present application.

[0022] Figure 8 An enlarged structure schematic view of A in the above. Figure 7 An enlarged structure schematic view of A in the above.

[0023] Wherein: 1- furnace shell, 11- water cooling wall, 12- cooling pipe, 2- cooling plate, 21- cooling cavity, 22- flow guide channel, 23- return pipe, 3- bearing seat, 4- heat dissipation mesh plate, 5- positioning assembly, 51- cross column, 52- control disc, 53- top groove, 54- connecting rod, 55- traction rope, 6- ventilation hole, 7- heat dissipation mechanism, 71- sealing assembly, 711- sealing plate, 712- connecting rope, 713- counterweight ball, 72- ventilation assembly, 721- control plate, 722- positioning main rope, 723- positioning branch rope, 8- driving piece, 81- positioning tooth disc, 82- gear ring, 83- motor, 84- transmission tooth disc, 9- guide rod. DETAILED DESCRIPTION

[0024] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0025] The specific implementation of the present application is described in detail below in combination with specific embodiments.

[0026] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 7 , a structure diagram of a blast furnace rapid cooling structure provided by an embodiment of the present application is shown, which comprises a furnace shell 1, a water-cooled wall 11 is fixedly installed on the inner side of the furnace shell 1, a cooling pipe 12 is arranged inside the water-cooled wall 11, the cooling pipe 12 is connected with an external water pump, a plurality of groups of cooling plates 2 in annular distribution are fixedly installed at different heights on the surface of the furnace shell 1, the vertical section of the cooling plate 2 is in inverted L-shaped structure, the cooling plate 2 extends into the furnace shell 1 and is connected with the water-cooled wall 11, a cooling cavity 21 is arranged inside the cooling plate 2, a flow guide hole 22 in communication with the cooling pipe 12 is arranged at the top end of the side wall of the cooling cavity 21, a backflow pipe 23 in communication with the cooling pipe 12 is arranged on the bottom wall of the cooling cavity 21, a bearing seat 3 is slidably installed in the cooling cavity 21 along the vertical direction, a heat dissipation mesh plate 4 is fixedly installed on the surface of the bearing seat 3, a plurality of groups of evenly distributed ventilation holes 6 in communication with the cooling cavity 21 are arranged on the surface of the cooling plate 2, a positioning assembly 5 matched with the heat dissipation mesh plate 4 is arranged on the surface of the furnace shell 1, the positioning assembly 5 is used to control the vertical movement of the heat dissipation mesh plate 4 and the bearing seat 3 in the cooling cavity 21, a heat dissipation mechanism 7 matched with the ventilation hole 6 is arranged on the surface of the cooling plate 2, the heat dissipation mechanism 7 comprises a sealing assembly 71 and a ventilation assembly 72, the sealing assembly 71 is located in the ventilation hole 6 and is used to control the ventilation hole 6 to be in a closed state, the ventilation assembly 72 is located in the cooling cavity 21 and is connected with the sealing assembly 71, and the ventilation assembly 72 controls the ventilation hole 6 to switch to a through state by cooperating with the sealing assembly 71.

[0027] In use, the water pump delivers cooling water into the cooling pipe 12, which removes the heat on the surface of the water-cooled wall 11 when flowing in the cooling pipe 12, and then cools the water-cooled wall 11. When the cooling water flows in the cooling pipe 12, it flows into the cooling cavity 21 in the cooling plate 2 through the flow guide channel 22. Initially, the sealing assembly 71 controls the ventilation hole 6 to be closed, the bearing seat 3 is at the bottom of the cooling cavity 21, and the bearing seat 3 is in close contact with the top end of the backflow pipe 23, so that the backflow pipe 23 is closed. When the cooling cavity 21 is filled with cooling water, the cooling water fully wets the side wall of the cooling cavity 21 and the heat dissipation mesh plate 4. The positioning assembly 5 controls the bearing seat 3 and the heat dissipation mesh plate 4 to move vertically upward in the cooling cavity 21. At this time, the heat dissipation mesh plate 4 moves to the outside of the cooling plate 2, and the water on the surface of the heat dissipation mesh plate 4 evaporates and absorbs heat, thereby quickly cooling the heat dissipation mesh plate 4. When the bearing seat 3 moves upward, the top end of the backflow pipe 23 is in an open state, and the cooling water in the cooling cavity 21 flows into the cooling pipe 12 again through the backflow pipe 23. When the bearing seat 3 moves to the top of the cooling cavity 21, the side wall of the bearing seat 3 is in close contact with the end of the flow guide channel 22, thereby closing the flow guide channel 22. At this time, the cooling water in the cooling cavity 21 is automatically discharged. The ventilation assembly 72 cooperates with the sealing assembly 71 to automatically switch the ventilation hole 6 to a through state. The through ventilation hole 6 can accelerate the air flow speed inside and outside the cooling cavity 21, and the water evaporated from the side wall of the cooling cavity 21 can further accelerate the cooling speed of the cooling plate 2. After the single water evaporation and heat dissipation are completed, the positioning assembly 5 controls the bearing seat 3 and the heat dissipation mesh plate 4 to move vertically downward to the original position. At this time, the flow guide channel 23 fills the cooling cavity 21 with an appropriate amount of cooling water again. This cycle can effectively improve the cooling and heat dissipation speed of the cooling plate 2 and the water-cooled wall 11.

[0028] As shown in Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 8 As a preferred embodiment of the present application, the positioning assembly 5 includes a top groove 53 opened downward on the top wall of the cooling plate 2 and cooperating with the heat dissipation mesh plate 4. The heat dissipation mesh plate 4 has a connecting rod 54 fixedly installed at the top end. The end of the connecting rod 54 away from the heat dissipation mesh plate 4 penetrates through the top groove 53 and extends to the outside of the cooling plate 2. A plurality of horizontal columns 51 are annularly distributed on the surface of the furnace shell 1 and are located directly above the cooling plate 2. The horizontal columns 51 have control discs 52 fixedly installed at the ends. The control discs 52 have traction ropes 55 arranged at positions deviated from the center. The traction ropes 55 away from the control discs 52 are connected with the plurality of connecting rods 54 directly below. The surface of the furnace shell 1 is provided with driving members 8 cooperating with the horizontal columns 51 to control the rotation of the horizontal columns 51 on the surface of the furnace shell 1.

[0029] Initially, the bearing seat 3 is at the bottom of the cooling cavity 21 under the action of gravity, and the traction rope 55 is at the lowest point of the control disc 52. When heat dissipation is needed, the driving part 8 controls the horizontal column 81 to rotate by 180 degrees on the surface of the furnace shell 1, and the horizontal column 81 drives the control disc 52 to rotate by 180 degrees synchronously. The control disc 52 drives the traction rope 55 to rotate to the highest point. When the traction rope 55 moves upward, it cooperates with the connecting rod 54 to pull the heat dissipation net plate 4 and the bearing seat 3 to move upward synchronously. At this time, the bearing seat 3 moves to the top of the cooling cavity 21, and the heat dissipation net plate 4 moves to the outside of the cooling plate 2 through the top groove 53. After single water evaporation heat dissipation, the driving part 8 controls the horizontal column 81 to rotate by 180 degrees again, and the horizontal column 81 drives the control disc 52 to rotate by 180 degrees synchronously. The control disc 52 cooperates with the traction rope 55 to control the vertical downward movement of the bearing seat 3 and the heat dissipation net plate 4 to the original position.

[0030] As shown in Figure 1 , Figure 2 , Figure 6 As a preferred embodiment of the present application, the driving part 8 comprises a positioning tooth disc 81 fixedly installed on the surface of the horizontal column 51, the furnace shell 1 is rotatably installed with a ring-shaped gear ring 82, the gear ring 82 is connected in meshing with the positioning tooth disc 81, and the motor 83 is fixedly installed outside the furnace shell 1. The output shaft of the motor 83 is fixedly installed with a transmission tooth disc 84, and the transmission tooth disc 84 is connected in meshing with the gear ring 82.

[0031] In use, the motor 83 drives the transmission tooth disc 84 to rotate, the transmission tooth disc 84 drives the gear ring 82 to rotate on the surface of the furnace shell 1 in meshing, and the gear ring 82 drives the horizontal column 51 to rotate on the surface of the furnace shell 1 in meshing when rotating. When the horizontal column 51 rotates by 180 degrees once, the motor 83 stops running.

[0032] As shown in Figure 3 , Figure 4 , Figure 7 , Figure 8 As a preferred embodiment of the present application, the sealing assembly 71 comprises a sealing plate 711 rotatably installed in the ventilation hole 6, a connecting rope 712 fixedly installed on the outer side wall of the sealing plate 711, and a counterweight ball 713 fixedly installed on the end of the connecting rope 712 away from the sealing plate 711 and extending to the outside of the cooling plate 2.

[0033] Initially, the counterweight ball 713 cooperates with the connecting rope 712 to exert a pulling force on the sealing plate 711, the sealing plate 711 is in a vertical state in the ventilation hole 6, at this time, the sealing plate 711 controls the ventilation hole 6 to keep closed, the cooling water fills into the cooling cavity 21 through the flow guide channel 22, which can effectively prevent the cooling water from flowing out of the ventilation hole 6. When the bearing seat 3 moves to the top of the cooling cavity 21, at this time, the flow guide channel 22 is in a closed state, the backflow pipe 23 automatically discharges the cooling water in the cooling cavity 21, at this time, the ventilation assembly 72 controls the sealing plate 711 to rotate to an inclined state, at this time, the ventilation hole 6 is automatically switched to a through state, the ventilation hole 6 accelerates the air exchange speed between the inside and outside of the cooling cavity 21, the water evaporation of the side wall of the cooling cavity 21 absorbs heat, which can effectively cool the cooling plate 2 and the water cooling wall 11. After single water evaporation and heat dissipation, the bearing seat 3 moves downward to the original position, at this time, the backflow pipe 23 is in a closed state, the flow guide channel 22 controls the appropriate cooling water to fill into the cooling cavity 21 again, the counterweight ball 713 cooperates with the connecting rope 712 to pull the sealing plate 711 to rotate to a vertical state in the ventilation hole 6 again to control the ventilation hole 6 to switch to a closed state.

[0034] As shown in Figure 4 , Figure 7 , Figure 8 , as a preferred embodiment of the present application, the ventilation assembly 72 comprises a control plate 721 slidably installed in the vertical direction at the top of the cooling cavity 21, the bottom wall of the control plate 721 is fixedly installed with a positioning main rope 722, a plurality of positioning branch ropes 723 are fixedly installed at different heights on the surface of the positioning main rope 722, and the ends of the positioning branch ropes 723 away from the positioning main rope 722 are connected with the sealing plate 711.

[0035] When the bearing seat 3 moves upward to the top of the cooling cavity 21, the bearing seat 3 pushes the control plate 721 to move upward synchronously, and the control plate 721 cooperates with the positioning main rope 722 and the positioning branch rope 723 to pull the sealing plate 711 to rotate to an inclined state toward the inside of the cooling cavity 21, at this time, the ventilation hole 6 is switched to a through state.

[0036] As shown in Figure 4 , Figure 5 , as a preferred embodiment of the present application, two groups of oppositely distributed guide rods 9 are fixedly installed in the cooling cavity 21, and the guide rods 9 are slidably connected with the bearing seat 3 in the vertical direction.

[0037] As shown in Figure 4 , as a preferred embodiment of the present application, the densities of the bearing seat 3 and the heat dissipation mesh plate 4 are greater than the density of water.

[0038] The working principle of the present application is: in use, the water pump delivers cooling water into the cooling pipe 12, which removes the heat on the surface of the water-cooled wall 11 when flowing in the cooling pipe 12, and then cools the water-cooled wall 11. When the cooling water flows in the cooling pipe 12, it flows through the flow guide channel 22 and then controls part of the cooling water to flow into the cooling cavity 21 inside the cooling plate 2. Initially, the counterweight ball 713 cooperates with the connecting rope 712 to exert a pulling force on the sealing plate 711, and the sealing plate 711 is in a vertical state in the ventilation hole 6. At this time, the sealing plate 711 controls the ventilation hole 6 to remain closed, and the bearing seat 3 is at the bottom of the cooling cavity 21, and the bearing seat 3 is attached to the top of the return pipe 23 to control the return pipe 23 to be closed. When the cooling cavity 21 is filled with cooling water, the cooling water fully wets the side wall of the cooling cavity 21 and the heat dissipation mesh plate 4.

[0039] The motor 83 drives the transmission gear plate 84 to rotate, the transmission gear plate 84 is engaged with the gear ring 82 to drive the gear ring 82 to rotate on the surface of the furnace shell 1, and the gear ring 82 is engaged with the positioning gear plate 81 to drive the horizontal column 51 to rotate on the surface of the furnace shell 1. When the horizontal column 51 rotates by one hundred and eighty degrees at a time, the motor 83 stops running. The horizontal column 81 drives the control disc 52 to rotate synchronously by one hundred and eighty degrees, the control disc 52 drives the traction rope 55 to rotate to the highest point, and the traction rope 55 is matched with the connecting rod 54 when moving upward, which can pull the heat dissipation mesh plate 4 and the bearing seat 3 to move upward synchronously. At this time, the bearing seat 3 moves to the top of the cooling cavity 21, and the heat dissipation mesh plate 4 moves to the outside of the cooling plate 2 through the top groove 53. The water on the surface of the heat dissipation mesh plate 4 evaporates and absorbs heat to quickly cool the heat dissipation mesh plate 4. When the bearing seat 3 moves upward, the top of the return pipe 23 is in an open state, the cooling water in the cooling cavity 21 flows through the return pipe 23 and flows into the cooling pipe 12 again, and when the bearing seat 3 moves to the top of the cooling cavity 21, the side wall of the bearing seat 3 is attached to the end of the flow guide channel 22 to close the flow guide channel 22. At this time, the cooling water in the cooling cavity 21 is automatically discharged.

[0040] When the bearing seat 3 moves upward to the top of the cooling cavity 21, the bearing seat 3 pushes the control plate 721 to move upward synchronously, and the control plate 721 is matched with the positioning main rope 722 and the positioning branch rope 723 to pull the sealing plate 711 to rotate to an inclined state inside the cooling cavity 21. At this time, the ventilation hole 6 is switched to a through state. The through ventilation hole 6 can accelerate the air flow speed inside and outside the cooling cavity 21, and the water evaporation on the side wall of the cooling cavity 21 can further accelerate the cooling speed of the cooling plate 2. After the single water evaporation and heat dissipation are completed, the bearing seat 3 and the heat dissipation mesh plate 4 are controlled to move vertically downward to the original position, and at this time, the flow guide channel 23 fills the cooling cavity 21 with appropriate amount of cooling water again. Thus, the cooling speed of the cooling plate 2 and the water-cooled wall 11 can be effectively improved.

[0041] While the preferred embodiments of the application have been described above, it will be understood that many modifications and variations will be apparent to those skilled in the art, which do not depart from the true spirit and scope of the present application.

Claims

1. A blast furnace rapid cooling structure, comprising a furnace shell, a water-cooled wall is fixedly installed on the inner side of the furnace shell, and a cooling pipe is arranged in the water-cooled wall, characterized in that, The furnace shell surface is fixedly provided with a plurality of groups of annularly distributed cooling plates at different heights, the vertical section of the cooling plate is in inverted L-shaped structure, the cooling plate extends into the furnace shell and is connected with the water cooling wall; The cooling cavity is provided with a flow guide hole communicating with the cooling pipe at the top of the side wall, and the bottom wall of the cooling cavity is provided with a return pipe communicating with the cooling pipe; The bearing seat is slidably installed in the cooling cavity in the vertical direction, and the surface of the bearing seat is fixedly provided with a heat dissipation mesh plate, and the surface of the cooling plate is provided with a plurality of groups of evenly distributed ventilation holes communicating with the cooling cavity; The surface of the furnace shell is provided with a positioning assembly matched with the heat dissipation mesh plate, and the positioning assembly is used to control the vertical movement of the heat dissipation mesh plate and the bearing seat in the cooling cavity; The surface of the cooling plate is provided with a heat dissipation mechanism matched with the ventilation hole, and the heat dissipation mechanism comprises a sealing assembly and a ventilation assembly; The sealing assembly is located in the ventilation hole, and the sealing assembly is used to control the ventilation hole in the closed state; The ventilation assembly is located in the cooling cavity and connected with the sealing assembly, and the ventilation assembly controls the ventilation hole to switch to the through state by cooperating with the sealing assembly.

2. The rapid cooling structure of a blast furnace according to claim 1, wherein The positioning assembly comprises a top groove in the top wall of the cooling plate matched with the heat dissipation mesh plate, the top end of the heat dissipation mesh plate is fixedly provided with a connecting rod, one end of the connecting rod away from the heat dissipation mesh plate penetrates through the top groove and extends to the outside of the cooling plate, a plurality of groups of horizontal columns are rotatably installed on the surface of the furnace shell in annular distribution and directly above the cooling plate, the end of the horizontal column is fixedly provided with a control disc, the surface of the control disc is provided with a traction rope deviated from the center, one side of the traction rope away from the control disc is connected with a plurality of groups of connecting rods directly below, and the surface of the furnace shell is provided with a driving member matched with the horizontal column, and the driving member is used to control the rotation of the horizontal column on the surface of the furnace shell.

3. The rapid cooling structure of a blast furnace according to claim 2, wherein The driving member comprises a positioning gear fixedly installed on the surface of the horizontal column, a ring-shaped gear is rotatably installed on the surface of the furnace shell, the gear is engaged with the positioning gear, a motor is fixedly installed on the outside of the furnace shell, an output shaft of the motor is fixedly provided with a transmission gear, and the transmission gear is engaged with the gear.

4. The rapid cooling structure of a blast furnace according to claim 1, wherein The sealing assembly comprises a sealing plate rotatably installed in the ventilation hole, a connecting rope is fixedly installed on the outer side wall of the sealing plate, and one end of the connecting rope away from the sealing plate extends to the outside of the cooling plate and is fixedly provided with a counterweight ball.

5. The rapid cooling structure of a blast furnace according to claim 5, wherein The ventilation assembly comprises a control plate slidably installed in the cooling cavity in the vertical direction, the bottom wall of the control plate is fixedly provided with a positioning main rope, a plurality of groups of positioning branch ropes are fixedly installed on the surface of the positioning main rope at different heights, and one end of the positioning branch rope away from the positioning main rope is connected with the sealing plate.

6. The rapid cooling structure of a blast furnace according to claim 1, wherein Two groups of oppositely distributed guide rods are fixedly installed in the cooling cavity, and the guide rods are slidably connected with the bearing seat in the vertical direction.

7. The rapid cooling structure of a blast furnace according to claim 1, wherein The density of the bearing seat and the heat dissipation mesh plate is greater than the density of water.

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