A blast furnace slag heat recovery device and a method of using the same

Abstract

The present application relates to a kind of blast furnace slag heat recovery device and its use method, including recovery furnace, heat conducting mechanism and heat sending mechanism, the top of recovery furnace is provided with feed inlet, heat conducting mechanism is set in recovery furnace inside;When the heat energy remaining in the slag needs to be recovered in actual production use process, the slag can be poured into recovery furnace inside by feed inlet, and the slag reaches the temperature guide plate, and contacts with temperature guide column, then the flattening assembly can be run, so that the slag on the temperature guide plate is flattened by flattening assembly, so that the slag is fully contacted with temperature guide column, then temperature guide column absorbs the high temperature in collection chamber and slag, and heat sending mechanism is operated, so that heat sending mechanism removes the temperature under temperature guide column, and is discharged through heat exhaust port, and the hot air discharged from heat exhaust port is guided into the tuyere of blast furnace, so that the heat energy remaining in the slag can be recovered, avoid the heat energy of slag overflow to affect the temperature of surrounding, ensure the operating environment of worker, save resources.

Description

Technical Field

[0001] This invention relates to the field of blast furnace waste heat recovery, and more particularly to a blast furnace slag heat recovery device and its usage method. Background Technology

[0002] A blast furnace uses steel plates as its outer shell, lined with refractory bricks. The blast furnace body is divided into five parts from top to bottom: the throat, the body, the waist, the belly, and the hearth. Due to the advantages of blast furnace ironmaking, such as good technical and economic indicators, simple process, large production capacity, high labor productivity, and low energy consumption, iron produced using this method accounts for the vast majority of the world's total iron production.

[0003] During blast furnace production, iron ore, coke, and slag-forming flux (limestone) are charged from the top. Preheated air is blown in through tuyeres located at the bottom of the furnace along its perimeter. At high temperatures, the carbon in the coke (and sometimes auxiliary fuels such as pulverized coal, heavy oil, or natural gas in some blast furnaces) burns with the oxygen in the blown air to produce carbon monoxide and hydrogen. As these gases rise within the furnace, they remove oxygen from the iron ore, thus reducing it to iron. The molten iron is then discharged from the taphole. Unreduced impurities in the iron ore combine with the flux, such as limestone, to form slag, which is discharged from the slag outlet.

[0004] Traditionally, after being discharged from the blast furnace, the slag is usually still at a high temperature. The slag is usually left to cool down before being centrally processed. However, the amount of slag discharged from the blast furnace is usually large. The heat released during the cooling process can easily affect the surrounding temperature, impacting the working environment of the workers. Furthermore, a large amount of heat energy is released into the air, leading to resource waste. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the aforementioned problems in the prior art, this invention provides a blast furnace slag heat recovery device and its usage method, which can recover residual heat energy in the slag, prevent the heat energy from overflowing from the slag from affecting the surrounding temperature, ensure the working environment for workers, and save resources.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the main technical solutions adopted by the present invention include:

[0009] A blast furnace slag heat recovery device and its usage method include a recovery furnace, a heat conduction mechanism, and a heat delivery mechanism. The top of the recovery furnace is provided with a feed inlet, the heat conduction mechanism is disposed inside the recovery furnace, and the heat delivery mechanism is connected to the recovery furnace.

[0010] The heat-conducting mechanism includes a heat-conducting plate, heat-conducting columns, and a leveling assembly. The heat-conducting plate is disposed inside the recycling furnace, dividing the recycling furnace into upper and lower spaces. The upper part of the heat-conducting plate is a collection chamber, and the lower part is a heat dissipation chamber. The heat-conducting plate is connected to the recycling furnace through the leveling assembly. Several heat-conducting columns are disposed on the heat-conducting plate. The collection chamber is connected to the heat dissipation chamber through the heat-conducting columns. A discharge port is disposed on the collection chamber. The heat supply mechanism is connected to one side of the heat dissipation chamber, and a heat dissipation port is disposed on the other side of the heat dissipation chamber.

[0011] Furthermore, the leveling component includes a flexible frame and a telescopic drive component. The temperature-conducting plate is connected to the inner surface of the recycling furnace through the flexible frame. One end of the telescopic drive component is detachably connected to the bottom of the recycling furnace, and the other end of the telescopic drive component is connected to the temperature-conducting plate.

[0012] Furthermore, the upper part of the heat-conducting column is disposed inside the collection chamber, the lower part of the heat-conducting column is disposed inside the heat exhaust chamber, and a plurality of secondary heat-conducting columns are evenly disposed on the outer surface of the lower part of the heat-conducting column.

[0013] Furthermore, an air inlet is provided on one side of the heat exhaust chamber, the heat delivery mechanism is connected to the air inlet, and a heat exhaust pipe is fixedly connected to the heat exhaust port;

[0014] The heat delivery mechanism includes a fixed frame and a fan. The fixed frame is detachably connected to the air inlet, and the fan is installed inside the fixed frame.

[0015] Furthermore, it also includes a thermoelectric power generation auxiliary heating mechanism, which is connected to the recovery furnace;

[0016] The thermoelectric generator auxiliary heating mechanism includes a heat-conducting plate, a thermoelectric generator, a cooling assembly, a transformer, and an electric heating element. The upper part of the recovery furnace is provided with an opening, which is connected to the collection chamber. The thermoelectric generator is installed on the opening. The heat-conducting plate is provided on one side of the thermoelectric generator and is located inside the collection chamber. The cooling assembly is installed on the other side of the thermoelectric generator and is located outside the collection chamber. The electric heating element is located inside the heat exhaust pipe. The thermoelectric generator is electrically connected to the electric heating element through the transformer.

[0017] It also includes a controller, which is electrically connected to the heat conduction mechanism, the heat delivery mechanism and the thermoelectric generator auxiliary heating mechanism respectively.

[0018] Furthermore, it also includes a tilting assembly, which is provided at the bottom of the recycling furnace;

[0019] The tilting assembly includes a base platform, a linear drive, and a rotating platform. The base platform is located below the recycling furnace. One end of the linear drive is rotatably connected to one side of the base platform, and the other end of the linear drive is rotatably connected to one side of the bottom of the recycling furnace. The other side of the bottom of the recycling furnace is rotatably connected to the other side of the base platform via the rotating platform.

[0020] Furthermore, it also includes a discharge assembly connected to the discharge port;

[0021] The discharge assembly includes a rotating base, a first rotating drive, a first sliding platform, a second sliding platform, a second rotating drive, and a drive wheel. One side of the first sliding platform is rotatably connected to the discharge port via the rotating base. The first rotating drive is drivenly connected to one side of the first sliding platform. The second sliding platform is slidably connected to the outside of the other side of the first sliding platform. The drive wheel is rotatably mounted on the outer surface of the second sliding platform. The outer surface of the first sliding platform is provided with a toothed groove, and the drive wheel meshes with the toothed groove. The second rotating drive is drivenly connected to the drive wheel.

[0022] Furthermore, the flexible frame is made of fire-resistant fiber cloth.

[0023] Furthermore, the temperature-conducting column is made of pure copper, and the upper outer surface of the temperature-conducting column is covered with a stone-milled layer.

[0024] Furthermore, it also includes a feed hopper, which is fixedly connected to the feed inlet.

[0025] A blast furnace slag heat recovery device and its usage method, comprising the aforementioned blast furnace slag heat recovery device, wherein the specific operation is as follows:

[0026] In actual production and use, when it is necessary to recover the residual heat energy in the slag, the slag can be poured into the recovery furnace through the feed port, so that the slag reaches the temperature guide plate and contacts the temperature guide column. Then, the leveling component can be operated to flatten the slag on the temperature guide plate, so that the slag can fully contact the temperature guide column. Subsequently, the temperature guide column absorbs the high temperature in the collection chamber and the slag, and the heat delivery mechanism is operated to carry away the temperature at the bottom of the temperature guide column and discharge it through the heat exhaust port. The hot air discharged from the heat exhaust port is then guided into the tuyeres of the blast furnace.

[0027] Furthermore, the leveling component includes a flexible frame and a telescopic drive component. The temperature-conducting plate is connected to the inner surface of the recycling furnace through the flexible frame. One end of the telescopic drive component is detachably connected to the bottom of the recycling furnace, and the other end of the telescopic drive component is connected to the temperature-conducting plate.

[0028] As can be seen from the above description, it is beneficial for the temperature guide plate to be installed on the inner surface of the recycling furnace through the flexible frame. When it is necessary to flatten the slag on the temperature guide plate, the telescopic drive can be operated to make the temperature guide plate move up and down quickly, so that the slag on the temperature guide plate is flattened and the temperature guide column can better contact the slag.

[0029] Furthermore, the upper part of the heat-conducting column is disposed inside the collection chamber, the lower part of the heat-conducting column is disposed inside the heat exhaust chamber, and a plurality of secondary heat-conducting columns are evenly disposed on the outer surface of the lower part of the heat-conducting column.

[0030] As can be seen from the above description, the upper part of the heat-conducting column is conducive to transferring the temperature in the collection chamber to the heat dissipation chamber in the lower part of the heat-conducting column, and the contact area between the heat-conducting column and the air is increased through the secondary heat-conducting column.

[0031] Furthermore, an air inlet is provided on one side of the heat exhaust chamber, the heat delivery mechanism is connected to the air inlet, and a heat exhaust pipe is fixedly connected to the heat exhaust port;

[0032] The heat delivery mechanism includes a fixed frame and a fan. The fixed frame is detachably connected to the air inlet, and the fan is installed inside the fixed frame.

[0033] As can be seen from the above description, when it is necessary to remove the high temperature from the lower part of the heat-conducting column, the fan can be operated to cool the lower part of the heat-conducting column. At the same time, the lower part of the heat-conducting column heats the air passing by and discharges the hot air through the heat exhaust port.

[0034] Furthermore, it also includes a thermoelectric power generation auxiliary heating mechanism, which is connected to the recovery furnace;

[0035] The thermoelectric generator auxiliary heating mechanism includes a heat-conducting plate, a thermoelectric generator, a cooling assembly, a transformer, and an electric heating element. The upper part of the recovery furnace is provided with an opening, which is connected to the collection chamber. The thermoelectric generator is installed on the opening. The heat-conducting plate is provided on one side of the thermoelectric generator and is located inside the collection chamber. The cooling assembly is installed on the other side of the thermoelectric generator and is located outside the collection chamber. The electric heating element is located inside the heat exhaust pipe. The thermoelectric generator is electrically connected to the electric heating element through the transformer.

[0036] As described above, the temperature of the slag inside the recovery furnace is transferred to the heat-conducting plate through heat transfer. The heat-conducting plate then heats one side of the thermoelectric generator, while the cooling component cools the other side of the thermoelectric generator, increasing the temperature difference on the thermoelectric generator and enabling it to generate electricity. The electricity is then boosted by a transformer, and the boosted electricity drives the heating element to operate. The heating element then reheats the hot air to reach the working temperature, further utilizing the heat generated by the slag.

[0037] Furthermore, it also includes a tilting assembly, which is provided at the bottom of the recycling furnace;

[0038] The tilting assembly includes a base platform, a linear drive, and a rotating platform. The base platform is located below the recycling furnace. One end of the linear drive is rotatably connected to one side of the base platform, and the other end of the linear drive is rotatably connected to one side of the bottom of the recycling furnace. The other side of the bottom of the recycling furnace is rotatably connected to the other side of the base platform via the rotating platform.

[0039] As can be seen from the above description, it is beneficial to operate the linear drive after the heat in the slag is used up, so that the linear drive can lift one side of the bottom of the recovery furnace, while the other side of the bottom of the recovery furnace is lifted by rotating the rotating table on the bottom platform. Then, the telescopic drive is operated, so that the telescopic drive can drive the temperature guide plate to move up and down quickly, so that the slag on the temperature guide plate can be discharged through the discharge port.

[0040] Furthermore, it also includes a discharge assembly connected to the discharge port;

[0041] The discharge assembly includes a rotating base, a first rotating drive, a first sliding platform, a second sliding platform, a second rotating drive, and a drive wheel. One side of the first sliding platform is rotatably connected to the discharge port via the rotating base. The first rotating drive is drivenly connected to one side of the first sliding platform. The second sliding platform is slidably connected to the outside of the other side of the first sliding platform. The drive wheel is rotatably mounted on the outer surface of the second sliding platform. The outer surface of the first sliding platform is provided with a toothed groove, and the drive wheel meshes with the toothed groove. The second rotating drive is drivenly connected to the drive wheel.

[0042] As can be seen from the above description, it is advantageous to close the discharge port through the first and second sliding platforms, reducing heat loss. When it is necessary to discharge material through the discharge port, the first rotating drive can be operated, causing one side of the first sliding platform to rotate on the rotating seat, thus opening the discharge port, and then the slag slides out through the first sliding platform. When it is necessary to adjust the sliding distance, the second rotating drive can be operated, causing the second rotating drive to drive the drive wheel to rotate. At the same time, the drive wheel meshes with the tooth groove, and slides the second sliding platform out on the other side of the first sliding platform, so that the slag slides out through the first and second sliding platforms.

[0043] Furthermore, the flexible frame is made of fire-resistant fiber cloth.

[0044] As can be seen from the above description, it helps to avoid the flexible frame affecting the movement of the heat-conducting plate and to prevent the flexible frame from being affected by high temperature.

[0045] Furthermore, the temperature-conducting column is made of pure copper, and the upper outer surface of the temperature-conducting column is covered with a stone-milled layer.

[0046] As can be seen from the above description, the stone-ground layer helps to protect the pure copper heat-conducting column, preventing oxidation of the pure copper heat-conducting column, while ensuring the heat conduction effect of the heat-conducting column.

[0047] Furthermore, it also includes a feed hopper, which is fixedly connected to the feed inlet.

[0048] As can be seen from the above description, it is beneficial for the slag to enter the recycling furnace more effectively through the feed hopper.

[0049] Furthermore, it also includes a controller, which is electrically connected to the heat conduction mechanism, the heat delivery mechanism, and the thermoelectric auxiliary heating mechanism, respectively.

[0050] As can be seen from the above description, it makes it more convenient for users to control the overall device.

[0051] (III) Beneficial Effects

[0052] The beneficial effects of this invention are as follows: In actual production and use, when it is necessary to recover the residual heat energy in the slag, the slag can be poured into the recovery furnace through the feed inlet, and the slag will reach the temperature guide plate and contact the temperature guide column. Then, the leveling component can be operated to level the slag on the temperature guide plate, so that the slag can fully contact the temperature guide column. Subsequently, the temperature guide column absorbs the high temperature in the collection chamber and the slag, and the heat delivery mechanism is operated to carry away the temperature at the bottom of the temperature guide column and discharge it through the heat exhaust port. The hot air discharged from the heat exhaust port is guided into the tuyeres of the blast furnace. In this way, the residual heat energy in the slag can be recovered, avoiding the heat energy overflowing from the slag from affecting the surrounding temperature, ensuring the working environment of the workers, and saving resources. Attached Figure Description

[0053] Figure 1 This is a schematic diagram of the overall structure of the blast furnace slag heat recovery device and its usage method according to an embodiment of the present invention;

[0054] Figure 2 This is a schematic diagram of the overall structure of the blast furnace slag heat recovery device and its usage method according to an embodiment of the present invention;

[0055] Figure 3 This is a side view of the overall structure of the blast furnace slag heat recovery device and its usage method according to an embodiment of the present invention;

[0056] Figure 4 This is a front view of the overall structure of the blast furnace slag heat recovery device and its usage method according to an embodiment of the present invention;

[0057] Figure 5 This is a rear view of the overall structure of the blast furnace slag heat recovery device and its usage method according to an embodiment of the present invention;

[0058] Figure 6 This is a schematic diagram of the discharge state of the blast furnace slag heat recovery device and its usage method according to an embodiment of the present invention.

[0059] Figure 7 This is a cross-sectional view of the overall structure of the blast furnace slag heat recovery device and its usage method according to an embodiment of the present invention;

[0060] Figure 8 This is a top view of the heat conduction mechanism in the blast furnace slag heat recovery device and its usage method according to an embodiment of the present invention;

[0061] [Explanation of Labels in the Attached Image]

[0062] 1. Feed hopper, 2. Recycling furnace, 3. Thermoelectric auxiliary heating mechanism, 4. Heat exhaust pipe, 5. Base platform, 6. Support leg, 7. Controller, 8. Rotating table, 9. Fixed frame, 10. First rotating drive component, 11. Second rotating drive component, 12. Second sliding table, 13. Drive wheel, 14. Linear drive component, 15. First sliding table, 16. Gear groove, 17. Temperature guiding column, 18. Temperature guiding plate, 19. Telescopic drive component, 20. Secondary heat guiding column, 21. Fan, 22. Flexible frame, 23. Receiving groove, 301. Heat guiding plate, 302. Thermoelectric generator, 303. Cooling component, 304. Detailed Implementation

[0063] To better explain and facilitate understanding of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0064] Please refer to Figures 1 to 8As shown, a blast furnace slag heat recovery device and its usage method according to the present invention include a recovery furnace 2, a heat conduction mechanism and a heat delivery mechanism. The top of the recovery furnace 2 is provided with a feed inlet, the heat conduction mechanism is disposed inside the recovery furnace 2, and the heat delivery mechanism is connected to the recovery furnace 2.

[0065] The heat conduction mechanism includes a heat conduction plate 18, heat conduction columns 17, and a leveling assembly. The heat conduction plate 18 is disposed inside the recycling furnace 2, dividing the recycling furnace 2 into upper and lower spaces. The upper part of the heat conduction plate 18 is a collection chamber, and the lower part of the heat conduction plate 18 is a heat exhaust chamber. The heat conduction plate 18 is connected to the recycling furnace 2 through the leveling assembly. Several heat conduction columns 17 are disposed on the heat conduction plate 18. The collection chamber is connected to the heat exhaust chamber through the heat conduction columns 17. A discharge port is disposed on the collection chamber. The heat supply mechanism is connected to one side of the heat exhaust chamber, and a heat exhaust port is disposed on the other side of the heat exhaust chamber.

[0066] The working principle of this invention is as follows: In actual production and use, when it is necessary to recover the residual heat energy in the slag, the slag can be poured into the recovery furnace 2 through the feed port, so that the slag reaches the temperature guide plate 18 and contacts the temperature guide column 17. Then, the leveling component can be operated to level the slag on the temperature guide plate 18, so that the slag fully contacts the temperature guide column 17. Then, the temperature guide column 17 absorbs the high temperature in the collection chamber and the slag, and the heat delivery mechanism is operated to carry away the temperature at the bottom of the temperature guide column 17 and discharge it through the heat exhaust port, and guide the hot air discharged from the heat exhaust port into the tuyeres of the blast furnace.

[0067] Furthermore, the leveling component includes a flexible frame 22 and a telescopic drive component 19. The temperature-conducting plate 18 is connected to the inner surface of the recycling furnace 2 through the flexible frame 22. One end of the telescopic drive component 19 is detachably connected to the bottom of the recycling furnace 2, and the other end of the telescopic drive component 19 is connected to the temperature-conducting plate 18.

[0068] As can be seen from the above description, it is beneficial for the temperature guide plate 18 to be installed on the inner surface of the recycling furnace 2 through the flexible frame 22. When it is necessary to flatten the slag on the temperature guide plate 18, the telescopic drive component 19 can be operated to make the telescopic drive component 19 drive the temperature guide plate 18 to move up and down quickly, so that the slag on the temperature guide plate 18 is flattened and the temperature guide column 17 can better contact the slag.

[0069] Furthermore, the upper part of the heat-conducting column 17 is disposed inside the collection chamber, the lower part of the heat-conducting column 17 is disposed inside the heat exhaust chamber, and a plurality of secondary heat-conducting columns 20 are uniformly disposed on the outer surface of the lower part of the heat-conducting column 17.

[0070] As can be seen from the above description, the upper part of the heat-conducting column 17 is conducive to transferring the temperature in the collection chamber to the heat dissipation chamber in the lower part of the heat-conducting column 17, and the contact area between the heat-conducting column 17 and the air is increased through the auxiliary heat-conducting column 20.

[0071] Furthermore, an air inlet is provided on one side of the heat exhaust chamber, the heat delivery mechanism is connected to the air inlet, and a heat exhaust pipe 4 is fixedly connected to the heat exhaust port;

[0072] The heat delivery mechanism includes a fixed frame 9 and a fan 21. The fixed frame 9 is detachably connected to the air inlet, and the fan 21 is installed inside the fixed frame 9.

[0073] As can be seen from the above description, when it is necessary to remove the high temperature from the lower part of the heat-conducting column 17, the fan 21 can be operated to cool the lower part of the heat-conducting column 17. At the same time, the lower part of the heat-conducting column 17 heats the passing air and discharges the hot air through the heat exhaust port.

[0074] Furthermore, it also includes a thermoelectric power generation auxiliary heating mechanism 3, which is connected to the recovery furnace 2;

[0075] The thermoelectric generator auxiliary heating mechanism 3 includes a heat-conducting plate 301, a thermoelectric generator 302, a cooling assembly 303, a transformer, and an electric heating element 304. The upper part of the recovery furnace 2 is provided with an opening, which is connected to the collection chamber. The thermoelectric generator 302 is installed on the opening. The heat-conducting plate 301 is provided on one side of the thermoelectric generator 302 and is located inside the collection chamber. The cooling assembly 303 is installed on the other side of the thermoelectric generator 302 and is located outside the collection chamber. The electric heating element 304 is located inside the heat exhaust pipe 4. The thermoelectric generator 302 is electrically connected to the electric heating element 304 through the transformer.

[0076] As described above, the temperature of the slag inside the recovery furnace 2 is transferred to the heat-conducting plate 301 through heat transfer. The heat-conducting plate 301 then heats one side of the thermoelectric generator 302, while the cooling component 303 cools the other side of the thermoelectric generator 302, thus increasing the temperature difference on the thermoelectric generator 302 and generating electricity. The electricity is then boosted by a transformer, and the boosted electricity drives the heating element 304 to operate. The heating element 304 then reheats the hot air to reach the working temperature, further utilizing the heat generated by the slag.

[0077] Furthermore, it also includes a tilting assembly, which is provided at the bottom of the recycling furnace 2;

[0078] The tilting assembly includes a base platform 5, a linear drive 14, and a rotating platform 8. The base platform 5 is located below the recycling furnace 2. One end of the linear drive 14 is rotatably connected to one side of the base platform 5, and the other end of the linear drive 14 is rotatably connected to one side of the bottom of the recycling furnace 2. The other side of the bottom of the recycling furnace 2 is rotatably connected to the other side of the base platform 5 via the rotating platform 8.

[0079] As can be seen from the above description, it is beneficial to operate the linear drive 14 after the heat in the slag is used up, so that the linear drive 14 lifts one side of the bottom of the recovery furnace 2, while the other side of the bottom of the recovery furnace 2 is lifted by rotating the rotating table 8 on the bottom platform 5. Then, the telescopic drive 19 is operated, so that the telescopic drive 19 drives the temperature guide plate 18 to move up and down quickly, so that the slag on the temperature guide plate 18 is discharged through the discharge port.

[0080] Furthermore, it also includes a discharge assembly connected to the discharge port;

[0081] The discharge assembly includes a rotating base, a first rotating drive 10, a first sliding platform 15, a second sliding platform 12, a second rotating drive 11, and a drive wheel 13. One side of the first sliding platform 15 is rotatably connected to the discharge port via the rotating base. The first rotating drive 10 is drivenly connected to one side of the first sliding platform 15. The second sliding platform 12 is slidably connected to the outside of the other side of the first sliding platform 15. The drive wheel 13 is rotatably mounted on the outer surface of the second sliding platform 12. The outer surface of the first sliding platform 15 is provided with a toothed groove 16, and the drive wheel 13 meshes with the toothed groove 16. The second rotating drive 11 is drivenly connected to the drive wheel 13.

[0082] As can be seen from the above description, it is advantageous to close the discharge port through the first sliding platform 15 and the second sliding platform 12, thereby reducing heat loss. When it is necessary to discharge material through the discharge port, the first rotating drive 10 can be operated, causing one side of the first sliding platform 15 to rotate on the rotating seat, thus opening the discharge port. Subsequently, the slag slides out through the first sliding platform 15. When it is necessary to adjust the sliding distance, the second rotating drive 11 can be operated, causing the second rotating drive 11 to drive the drive wheel 13 to rotate. At the same time, the drive wheel 13 meshes with the tooth groove 16, and slides the second sliding platform 12 out on the other side of the first sliding platform 15, allowing the slag to slide out through the first sliding platform 15 and the second sliding platform 12.

[0083] Furthermore, the flexible frame 22 is made of fire-resistant fiber cloth.

[0084] As can be seen from the above description, it is beneficial to avoid the flexible frame 22 affecting the movement of the heat-conducting plate 18 and to avoid the flexible frame 22 being affected by high temperature.

[0085] Furthermore, the temperature-conducting column 17 is made of pure copper, and the upper outer surface of the temperature-conducting column 17 is covered with a stone mill layer.

[0086] As can be seen from the above description, it is beneficial to protect the pure copper heat-conducting column 17 through the stone mill layer, avoid oxidation of the pure copper heat-conducting column 17, and at the same time ensure the heat conduction effect of the heat-conducting column 17.

[0087] Furthermore, it also includes a feed hopper 1, which is fixedly connected to the feed inlet.

[0088] As can be seen from the above description, it is beneficial for the slag to enter the recycling furnace 2 better through the feed hopper 1.

[0089] Furthermore, it also includes a controller 7, which is electrically connected to the heat conduction mechanism, the heat delivery mechanism and the thermoelectric auxiliary heating mechanism 3 respectively.

[0090] As can be seen from the above description, it makes it more convenient for users to control the overall device.

[0091] Example 1

[0092] Please refer to Figures 1 to 8 A blast furnace slag heat recovery device and its usage method include a recovery furnace 2, a heat conduction mechanism and a heat delivery mechanism. The top of the recovery furnace 2 is provided with a feed inlet, the heat conduction mechanism is disposed inside the recovery furnace 2, and the heat delivery mechanism is connected to the recovery furnace 2.

[0093] The heat conduction mechanism includes a heat conduction plate 18, heat conduction columns 17, and a leveling assembly. The heat conduction plate 18 is disposed inside the recycling furnace 2, dividing the recycling furnace 2 into upper and lower spaces. The upper part of the heat conduction plate 18 is a collection chamber, and the lower part of the heat conduction plate 18 is a heat exhaust chamber. The heat conduction plate 18 is connected to the recycling furnace 2 through the leveling assembly. Several heat conduction columns 17 are disposed on the heat conduction plate 18. The collection chamber is connected to the heat exhaust chamber through the heat conduction columns 17. A discharge port is disposed on the collection chamber. The heat supply mechanism is connected to one side of the heat exhaust chamber, and a heat exhaust port is disposed on the other side of the heat exhaust chamber.

[0094] The heat-conducting plate 18 is made of pure copper.

[0095] The temperature-conducting plate 18 and the temperature-conducting column 17 are an integrated structure;

[0096] The leveling component includes a flexible frame 22 and a telescopic drive component 19. The temperature guide plate 18 is connected to the inner surface of the recycling furnace 2 through the flexible frame 22. One end of the telescopic drive component 19 is detachably connected to the bottom of the recycling furnace 2 by bolts, and the other end of the telescopic drive component 19 is connected to the temperature guide plate 18.

[0097] The telescopic drive component 19 is a high-temperature resistant telescopic motor;

[0098] The upper part of the heat-conducting column 17 is disposed inside the collection chamber, the lower part of the heat-conducting column 17 is disposed inside the heat exhaust chamber, and a plurality of secondary heat-conducting columns 20 are evenly disposed on the outer surface of the lower part of the heat-conducting column 17.

[0099] The heat-conducting column 17 and the auxiliary heat-conducting column 20 are an integrated structure;

[0100] An air inlet is provided on one side of the heat exhaust chamber, the heat delivery mechanism is connected to the air inlet, and a heat exhaust pipe 4 is fixedly connected to the heat exhaust port;

[0101] The heat delivery mechanism includes a fixed frame 9 and a fan 21. The fixed frame 9 is detachably connected to the air inlet by bolts, and the fan 21 is installed inside the fixed frame 9.

[0102] It also includes a thermoelectric power generation auxiliary heating mechanism 3, which is connected to the recovery furnace 2;

[0103] The thermoelectric generator auxiliary heating mechanism 3 includes a heat-conducting plate 301, a thermoelectric generator 302, a cooling assembly 303, a transformer, and an electric heating element 304. The upper part of the recovery furnace 2 is provided with an opening, which is connected to the collection chamber. The thermoelectric generator 302 is installed on the opening. The heat-conducting plate 301 is provided on one side of the thermoelectric generator 302 and is located inside the collection chamber. The cooling assembly 303 is installed on the other side of the thermoelectric generator 302 and is located outside the collection chamber. The electric heating element 304 is located inside the heat exhaust pipe 4. The thermoelectric generator 302 is electrically connected to the electric heating element 304 through the transformer.

[0104] The heat-conducting plate 301 is made of pure silver and has excellent thermal conductivity.

[0105] The cooling component 303 is a water-cooled cooler;

[0106] The heating element 304 is a heating wire;

[0107] It also includes a tilting assembly, which is provided at the bottom of the recycling furnace 2;

[0108] The tilting assembly includes a base platform 5, a linear drive 14, and a rotating platform 8. The base platform 5 is located below the recycling furnace 2. One end of the linear drive 14 is rotatably connected to one side of the base platform 5, and the other end of the linear drive 14 is rotatably connected to one side of the bottom of the recycling furnace 2. The other side of the bottom of the recycling furnace 2 is rotatably connected to the other side of the base platform 5 through the rotating platform 8.

[0109] The base 5 is provided with a receiving groove 23, and one end of the linear drive 14 is rotatably connected to the receiving groove 23.

[0110] The linear drive component 14 is a hydraulic cylinder;

[0111] It also includes a discharge assembly connected to the discharge port;

[0112] The linear drive component 14 is provided with a support leg 6 on each side. The support leg 6 is fixed to one side of the bottom of the recycling furnace 2, which is beneficial to provide auxiliary support to one side of the bottom of the recycling furnace 2 through the support leg 6.

[0113] The discharge assembly includes a rotating base, a first rotating drive 10, a first sliding platform 15, a second sliding platform 12, a second rotating drive 11, and a drive wheel 13. One side of the first sliding platform 15 is rotatably connected to the discharge port through the rotating base. The first rotating drive 10 is drivenly connected to one side of the first sliding platform 15. The second sliding platform 12 is slidably connected to the outside of the other side of the first sliding platform 15. The drive wheel 13 is rotatably mounted on the outer surface of the second sliding platform 12. The outer surface of the first sliding platform 15 is provided with a toothed groove 16. The drive wheel 13 meshes with the toothed groove 16. The second rotating drive 11 is drivenly connected to the drive wheel 13.

[0114] The drive wheel 13 is a gear;

[0115] Both the first rotation drive 10 and the second rotation drive 11 are stepper motors;

[0116] The flexible frame 22 is made of fire-resistant fiber cloth;

[0117] The temperature-conducting column 17 is made of pure copper, and the upper outer surface of the temperature-conducting column 17 is covered with a stone mill layer.

[0118] It also includes a feed hopper 1, which is fixedly connected to the feed inlet and is welded.

[0119] It also includes a controller 7, which is electrically connected to the heat conduction mechanism, the heat delivery mechanism and the thermoelectric generator auxiliary heating mechanism 3 respectively;

[0120] The controller 7 is model DATA-7311, and the controller 7 is electrically connected to the telescopic drive 19, the fan 21, the cooling assembly 303, the transformer, the heating element 304, the linear drive 14, the first rotary drive 10, and the second rotary drive 11.

[0121] The above description shows and illustrates the basic principles, main features, and advantages of the present invention. Standard parts used in the present invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0122] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A method of using a blast furnace slag heat recovery device, characterized in that: The invention includes a blast furnace slag heat recovery device, which comprises a recovery furnace, a heat conduction mechanism, and a heat delivery mechanism. The top of the recovery furnace is provided with a feed inlet, the heat conduction mechanism is disposed inside the recovery furnace, and the heat delivery mechanism is connected to the recovery furnace. The heat conduction mechanism includes a temperature conduction plate, temperature conduction columns, and a leveling assembly. The temperature conduction plate is disposed inside the recycling furnace, dividing the recycling furnace into upper and lower spaces. The upper part of the temperature conduction plate is a collection chamber, and the lower part of the temperature conduction plate is a heat exhaust chamber. The temperature conduction plate is connected to the recycling furnace through the leveling assembly. Several temperature conduction columns are disposed on the temperature conduction plate. The collection chamber is connected to the heat exhaust chamber through the temperature conduction columns. A discharge port is disposed on the collection chamber. The heat supply mechanism is connected to one side of the heat exhaust chamber, and a heat exhaust port is disposed on the other side of the heat exhaust chamber. The specific operating procedures for the blast furnace slag heat recovery device are as follows: In actual production and use, when it is necessary to recover the residual heat energy in the slag, the slag is poured into the recovery furnace (2) through the feed port, so that the slag reaches the heat guide plate (18) and contacts the heat guide column (17). Then the leveling component is run, so that the leveling component flattens the slag on the heat guide plate (18) and makes the slag fully contact the heat guide column (17). Then the heat guide column (17) absorbs the high temperature in the collection chamber and the slag, and the heat delivery mechanism is run, so that the heat delivery mechanism carries away the temperature at the bottom of the heat guide column (17) and discharges it through the heat exhaust port, and guides the hot air discharged from the heat exhaust port into the tuyeres of the blast furnace. The flattening component includes a flexible frame (22) and a telescopic drive (19). The temperature guide plate (18) is connected to the inner surface of the recycling furnace (2) through the flexible frame (22). One end of the telescopic drive (19) is detachably connected to the bottom of the recycling furnace (2), and the other end of the telescopic drive (19) is connected to the temperature guide plate (18). It is beneficial for the heat-conducting plate (18) to be installed on the inner surface of the recycling furnace (2) through the flexible frame (22). When it is necessary to flatten the slag on the heat-conducting plate (18), the telescopic drive (19) is operated to make the telescopic drive (19) drive the heat-conducting plate (18) to move up and down quickly, so that the slag on the heat-conducting plate (18) is flattened and the heat-conducting column (17) is in better contact with the slag. The upper part of the heat-conducting column (17) is located inside the collection chamber, and the lower part of the heat-conducting column (17) is located inside the heat exhaust chamber. A plurality of secondary heat-conducting columns (20) are uniformly arranged on the outer surface of the lower part of the heat-conducting column (17). It is beneficial for the upper part of the heat-conducting column (17) to transfer the temperature in the collection chamber to the heat dissipation chamber in the lower part of the heat-conducting column (17), and the contact area between the heat-conducting column (17) and the air is increased through the auxiliary heat-conducting column (20); An air inlet is provided on one side of the heat dissipation chamber, the heat delivery mechanism is connected to the air inlet, and a heat dissipation pipe (4) is fixedly connected to the heat dissipation port. The heat delivery mechanism includes a fixed frame (9) and a fan (21). The fixed frame (9) is detachably connected to the air inlet, and the fan (21) is installed inside the fixed frame (9). It is beneficial to run the fan (21) when it is necessary to remove the high temperature at the bottom of the heat-conducting column (17), so that the fan (21) cools the bottom of the heat-conducting column (17), while the bottom of the heat-conducting column (17) heats the passing air and discharges the hot air through the heat exhaust port. It also includes a thermoelectric power generation auxiliary heating mechanism (3), which is connected to the recovery furnace (2); The thermoelectric generator auxiliary heating mechanism (3) includes a heat-conducting plate (301), a thermoelectric generator (302), a cooling component (303), a transformer, and an electric heating element (304). The upper part of the recycling furnace (2) is provided with an opening, which is connected to the collection chamber. The thermoelectric generator (302) is installed on the opening. The heat-conducting plate (301) is provided on one side of the thermoelectric generator (302), which is located inside the collection chamber. The cooling component (303) is installed on the other side of the thermoelectric generator (302), which is located outside the collection chamber. The electric heating element (304) is located inside the heat exhaust pipe (4). The thermoelectric generator (302) is electrically connected to the electric heating element (304) through the transformer. The temperature of the slag inside the recovery furnace (2) is transferred to the heat-conducting plate (301) through heat transfer. Then the heat-conducting plate (301) heats one side of the thermoelectric generator (302), while the cooling component (303) cools the other side of the thermoelectric generator (302), expanding the temperature difference on the thermoelectric generator (302) so that the thermoelectric generator (302) generates electricity. Then the electricity is stepped up by the transformer, and then the stepped-up electricity drives the electric heating element (304) to run. The electric heating element (304) then heats the hot air a second time so that the hot air reaches the working temperature and utilizes the heat generated by the slag. It also includes a tilting assembly, which is provided at the bottom of the recycling furnace (2); The tilting assembly includes a base platform (5), a linear drive (14), and a rotating platform (8). The base platform (5) is located below the recycling furnace (2). One end of the linear drive (14) is rotatably connected to one side of the base platform (5), and the other end of the linear drive (14) is rotatably connected to one side of the bottom of the recycling furnace (2). The other side of the bottom of the recycling furnace (2) is rotatably connected to the other side of the base platform (5) through the rotating platform (8). It is beneficial to operate the linear drive (14) after the heat in the slag is used up, so that the linear drive (14) lifts one side of the bottom of the recovery furnace (2), while the other side of the bottom of the recovery furnace (2) is lifted by rotating the rotating table (8) on the bottom platform (5). Then the telescopic drive (19) is operated, so that the telescopic drive (19) drives the temperature guide plate (18) to move up and down quickly, so that the slag on the temperature guide plate (18) is discharged through the discharge port. It also includes a discharge assembly connected to the discharge port; The discharge assembly includes a rotating seat, a first rotating drive (10), a first sliding table (15), a second sliding table (12), a second rotating drive (11), and a drive wheel (13). One side of the first sliding table (15) is rotatably connected to the discharge port through the rotating seat. The first rotating drive (10) is driven to one side of the first sliding table (15). The second sliding table (12) is slidably connected to the outside of the other side of the first sliding table (15). The drive wheel (13) is rotatably mounted on the outer surface of the second sliding table (12). The outer surface of the first sliding table (15) is provided with a toothed groove (16). The drive wheel (13) meshes with the toothed groove (16). The second rotating drive (11) is driven to the drive wheel (13). It is beneficial to close the discharge port through the first sliding platform (15) and the second sliding platform (12) to reduce heat loss. When it is necessary to discharge through the discharge port, the first rotating drive (10) is operated, so that the first rotating drive (10) drives one side of the first sliding platform (15) to rotate on the rotating seat, so that the discharge port is opened, and then the slag slides out through the first sliding platform (15). When it is necessary to adjust the sliding distance, the second rotating drive (11) is operated, so that the second rotating drive (11) drives the drive wheel (13) to rotate. At the same time, the drive wheel (13) meshes with the tooth groove (16) and slides the second sliding platform (12) out on the other side of the first sliding platform (15), so that the slag slides out through the first sliding platform (15) and the second sliding platform (12). The flexible frame (22) is made of fire-resistant fiber cloth; This helps to prevent the flexible frame (22) from affecting the movement of the heat-conducting plate (18) and to prevent the flexible frame (22) from being affected by high temperature; The temperature-conducting column (17) is made of pure copper, and the upper outer surface of the temperature-conducting column (17) is covered with a stone mill layer; It is beneficial to protect the pure copper heat-conducting column (17) through the stone grinding layer, avoid oxidation of the pure copper heat-conducting column (17), and at the same time ensure the heat conduction effect of the heat-conducting column (17); It also includes a feed hopper (1), and the feed inlet is fixedly connected to the feed hopper (1). This facilitates the slag to enter the recycling furnace (2) better through the feed hopper (1); It also includes a controller (7), which is electrically connected to the heat conduction mechanism, the heat delivery mechanism and the thermoelectric generator auxiliary heating mechanism (3) respectively; This makes it more convenient for users to control the entire device.

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