Novel high-temperature steel slag waste heat recovery device

Abstract

The utility model relates to the field of waste heat recovery, and discloses a novel high-temperature steel slag waste heat recovery device which comprises a support and a waste heat recovery barrel rotationally installed on the support, the waste heat recovery barrel comprises a high-temperature section membrane wall and a low-temperature section membrane wall, and the high-temperature section membrane wall and the low-temperature section membrane wall are fixedly communicated through a flange; the high-temperature section membrane type wall and the low-temperature section membrane type wall are arranged in an inclined mode, a plurality of slag guide plates are fixedly installed in the high-temperature section membrane type wall and the low-temperature section membrane type wall and are evenly distributed in a spiral mode, a first heat preservation cover is fixedly installed on the outer side of the high-temperature section membrane type wall in a sleeved mode, and a second heat preservation cover is fixedly installed on the outer side of the low-temperature section membrane type wall in a sleeved mode. A communicating piece is arranged between the first heat preservation cover and the second heat preservation cover, and a feeding pipe is rotationally installed at the end, away from the low-temperature-section membrane wall, of the high-temperature-section membrane wall. The steel slag waste heat recovery device has the following advantages and effects that the recovery efficiency and effect of waste heat in steel slag can be improved, and waste heat in the steel slag can be recovered more sufficiently.

Description

Technical Field

[0001] The present application relates to the field of waste heat recovery technology, and in particular to a novel high-temperature steel slag waste heat recovery device. Background Art

[0002] Steel slag is formed during the steelmaking process by the high-temperature oxidation of impurities in pig iron. The steelmaking process produces a large amount of steel slag, which is primarily composed of oxides of calcium, iron, silicon, magnesium, and small amounts of aluminum, manganese, phosphorus, and other substances. The slag is partially molten and partially solid. With a temperature of approximately 1100°C-1300°C, it contains a significant amount of sensible heat. Each ton of steel slag contains approximately the same amount of heat released by the complete combustion of 60kg of standard coal. Recycling and utilizing this waste heat not only contributes to environmental protection but also enables resource recycling.

[0003] Although the high-temperature steel slag waste heat recovery device in the related technology can meet the basic needs of recovering waste heat in steel slag, it is found in actual use that there are still at least the following shortcomings: the flow rate of cooling water in the waste heat recovery cylinder is relatively fast, and the waste heat recovery in the steel slag is not sufficient, which makes the recovery effect of the steel slag waste heat poor, and the recovery efficiency of the waste heat in the steel slag is relatively low.

[0004] Therefore, we propose a new type of high-temperature steel slag waste heat recovery device to solve the above problems. Utility Model Content

[0005] In order to solve the problem of insufficient recovery of waste heat in steel slag, which leads to poor recovery effect of waste heat in steel slag and relatively low recovery efficiency of waste heat in steel slag, the present application provides a new high-temperature steel slag waste heat recovery device.

[0006] The above technical objectives of the present application are achieved through the following technical solutions: a novel high-temperature steel slag waste heat recovery device, comprising a bracket and a waste heat recovery cylinder rotatably mounted on the bracket, the waste heat recovery cylinder comprising a high-temperature section membrane wall and a low-temperature section membrane wall, the high-temperature section membrane wall and the low-temperature section membrane wall are fixedly connected through a flange, the high-temperature section membrane wall and the low-temperature section membrane wall are inclined, a plurality of slag guide plates are fixedly mounted in the high-temperature section membrane wall and the low-temperature section membrane wall, the plurality of slag guide plates are evenly distributed in a spiral, the outer side of the high-temperature section membrane wall is fixedly covered with a heat preservation cover, and the low-temperature section membrane wall is fixedly covered with a heat preservation cover. The outer side of the membrane wall is fixedly covered with a second insulation cover, and a connecting piece is provided between the first insulation cover and the second insulation cover. A feed pipe is rotatably installed on the end of the high-temperature section membrane wall away from the low-temperature section membrane wall, and a hopper with an open top is fixedly installed on one end of the feed pipe. A slag discharge pipe is fixedly installed on the end of the low-temperature section membrane wall away from the high-temperature section membrane wall. A cooling water delivery mechanism is provided on one side of the bracket, and the cooling water delivery mechanism is used to deliver cooling water to the first insulation cover and the second insulation cover. A driving mechanism is provided on the bracket, and the driving mechanism is used to control the rotation of the high-temperature section membrane wall and the low-temperature section membrane wall.

[0007] By adopting the above technical solution, the waste heat recovery cylinder is divided into two parts, the high-temperature section membrane wall and the low-temperature section membrane wall, which is convenient for disassembly and transportation. A hopper and a feed pipe are provided to facilitate pouring the steel slag into the high-temperature section membrane wall, and then the steel slag entering the high-temperature section membrane wall enters the low-temperature section membrane wall. The slag discharge pipe is used to discharge the cooled steel slag.

[0008] Optionally, the connecting part includes pipe joint 1, pipe joint 2 and a U-shaped tube, pipe joint 1 is fixedly installed on insulation cover 1, one end of pipe joint 1 extends into insulation cover 1, pipe joint 2 is fixedly installed on insulation cover 2, one end of pipe joint 2 extends into insulation cover 2, and both ends of the U-shaped tube are fixedly connected to pipe joint 1 and pipe joint 2 respectively.

[0009] By adopting the above technical solution, pipe joint 1, pipe joint 2 and U-shaped pipe are used to guide the cooling water between the high-temperature section membrane wall and insulation cover 1 to between the low-temperature section membrane wall and insulation cover 2, so as to continue cooling the steel slag and further recover the waste heat in the steel slag.

[0010] Optionally, a reinforcement column is fixedly mounted on the bracket, and the top end of the reinforcement column is fixedly connected to the outer wall of the feed pipe.

[0011] By adopting the above technical solution, the feed pipe can be supported and reinforced by using reinforcement columns.

[0012] Optionally, the cooling water delivery mechanism includes a manifold, a delivery pump, a suction pipe, an outlet pipe and a return pipe. The manifold is located on one side of the bracket, and cooling water exists in the manifold. The delivery pump is fixedly installed on the top of the manifold, the suction pipe is fixedly installed on the suction end of the delivery pump, one end of the suction pipe extends into the manifold, the outlet pipe is fixedly installed on the discharge end of the delivery pump, one end of the outlet pipe is rotatably installed on one end of the high-temperature section membrane wall through a rotary joint, one end of the return pipe is rotatably installed on one end of the low-temperature section membrane wall through a rotary joint, and the other end of the return pipe extends into the manifold.

[0013] By adopting the above technical solution, the header is used to contain cooling water, and the cooling water in the header can be transported to the space between the high-temperature membrane wall and the insulation cover by a delivery pump, so as to cool the steel slag and recover the waste heat.

[0014] Optionally, a steam exhaust pipe is fixedly connected to the top of the header, a stop valve 1 is fixedly installed on the steam exhaust pipe, a water supply pipe is fixedly installed on the right side of the header, and a stop valve 2 is fixedly installed on the water supply pipe.

[0015] By adopting the above technical solution, the steam exhaust pipe is used to discharge the generated water vapor, and the water supply pipe is used to add cooling water to the header.

[0016] Optionally, an observation hole is provided on the front side wall of the junction box, and a liquid level observation mirror is fixedly installed in the observation hole.

[0017] By adopting the above technical solution, it is convenient to observe the water level of the cooling water in the header.

[0018] Optionally, the driving mechanism includes a machine base, a motor, a drive shaft, a gear and an outer gear ring. The machine base is fixedly mounted on the bracket, the motor is fixedly mounted on the machine base, the drive shaft is fixedly mounted on the output shaft end of the motor, the number of gears is set to two, and both gears are fixedly mounted on the drive shaft. The number of outer gear rings is set to two, and the two outer gear rings are respectively fixedly mounted on insulation cover one and insulation cover two, and the two gears are respectively engaged with the corresponding outer gear rings.

[0019] By adopting the above technical solution, the motor can be used to control the rotation of the drive shaft, and the two gears are used to mesh with the corresponding outer gear rings to control the simultaneous synchronous rotation of the high-temperature section membrane wall and the low-temperature section membrane wall, so that the material flows more smoothly in the waste heat recovery cylinder, thereby improving the waste heat recovery efficiency. By setting up the meshing transmission of two sets of gears and the outer gear ring, it can be ensured that the waste heat recovery cylinder is subjected to balanced force during rotation.

[0020] Optionally, a support column located between the two gears is fixedly mounted on the bracket, and the drive shaft is rotatably mounted on the support column.

[0021] By adopting the above technical solution, the driving shaft can be supported and positioned.

[0022] Optionally, several water-blocking rings 1 are fixedly mounted on the outer walls of the high-temperature section membrane wall and the low-temperature section membrane wall, and several water-blocking rings 2 are fixedly mounted on the inner walls of the insulation cover 1 and the insulation cover 2, and the several water-blocking rings 1 and the several water-blocking rings 2 are alternately distributed in sequence.

[0023] By adopting the above technical solution and setting up several water-blocking rings 1 and several water-blocking rings 2, the flow rate of cooling water between the high-temperature section membrane wall and the insulation cover 1 and between the low-temperature section membrane wall and the insulation cover 2 can be reduced, thereby improving the waste heat recovery effect.

[0024] This application includes at least one of the following beneficial technical effects:

[0025] 1. The present application arranges the high-temperature segment membrane wall and the low-temperature segment membrane wall at an angle, and arranges thermal insulation cover 1 and thermal insulation cover 2, and utilizes a cooling water delivery mechanism to circulate cooling water, and utilizes a driving mechanism to control the rotation of the high-temperature segment membrane wall, the low-temperature segment membrane wall, the thermal insulation cover 1 and the thermal insulation cover 2, thereby being able to fully absorb the waste heat of the material and improve the waste heat recovery efficiency.

[0026] 2. In this application, the connecting piece between the insulation cover 1 and the insulation cover 2 adopts a combination of pipe joint 1, pipe joint 2 and U-shaped pipe, which ensures reliable connection and smooth circulation of cooling water.

[0027] 3. This application controls the rotation of the high-temperature section membrane wall and the low-temperature section membrane wall by adopting a transmission method of two sets of gears meshing with the outer gear ring, making the operation of the equipment more stable and reliable, and the force is balanced during rotation.

[0028] 4. The present application provides a plurality of water-blocking rings 1 and a plurality of water-blocking rings 2, which can reduce the flow rate of cooling water between the high-temperature section membrane wall and the insulation cover 1 and between the low-temperature section membrane wall and the insulation cover 2, thereby extending the flow time of the cooling water, and can transfer more waste heat in the steel slag to the cooling water, thereby improving the waste heat recovery effect and more fully recovering the waste heat in the steel slag.

[0029] 5. This application utilizes a high-temperature membrane wall and a low-temperature membrane wall to form a waste heat recovery cylinder, which facilitates the disassembly, assembly and transportation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the three-dimensional structure of this embodiment.

[0031] Figure 2 It is a schematic diagram of the main cross-sectional structure of this embodiment.

[0032] Figure 3 yes Figure 2 Schematic diagram of the enlarged structure of part A.

[0033] Figure 4 It is a schematic diagram of the three-dimensional structure of a partial cross-section of the membrane wall in the high-temperature section.

[0034] In the figure, 1. bracket; 2. membrane wall of high temperature section; 3. membrane wall of low temperature section; 4. flange; 5. slag guide plate; 6. thermal insulation cover 1; 7. thermal insulation cover 2; 8. connecting piece; 81. pipe joint 1; 82. pipe joint 2; 83. U-shaped pipe; 9. feed pipe; 10. hopper; 11. slag discharge pipe; 12. junction box; 13. conveying pump; 14. suction pipe; 15. outlet pipe; 16. return pipe; 17. water blocking ring 1; 18. water blocking ring 2; 19. steam discharge pipe; 20. water supply pipe; 21. liquid level observation mirror; 22. machine base; 23. motor; 24. drive shaft; 25. gear; 26. outer gear ring; 27. support column; 28. reinforcement column. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-4 This application is described in further detail.

[0036] The embodiment of the present application discloses a novel high-temperature steel slag waste heat recovery device, comprising a bracket 1 and a waste heat recovery drum rotatably mounted on the bracket 1, wherein:

[0037] The heat recovery tube includes a high-temperature section membrane wall 2 and a low-temperature section membrane wall 3. The high-temperature section membrane wall 2 and the low-temperature section membrane wall 3 are fixedly connected by a flange 4. The high-temperature section membrane wall 2 and the low-temperature section membrane wall 3 are connected and assembled by the flange 4 to form a heat recovery tube, which is convenient for disassembly and transportation of the device. The high-temperature section membrane wall 2 and the low-temperature section membrane wall 3 are inclined. A plurality of slag guide plates 5 are fixedly installed in the high-temperature section membrane wall 2 and the low-temperature section membrane wall 3. The plurality of slag guide plates 5 are evenly distributed in a spiral. The use of a plurality of slag guide plates 5 can increase the flow range of steel slag in the high-temperature section membrane wall 2 and the low-temperature section membrane wall 3, so that more waste heat in the steel slag can be transferred to the cooling water. It should be supplemented that the plurality of slag guide plates 5 are divided into two groups and are respectively cast as a whole with the high-temperature section membrane wall 2 and the low-temperature section membrane wall 3. The outer side of the high-temperature section membrane wall 2 is fixedly covered with a heat preservation cover 1, and the outer side of the low-temperature section membrane wall 3 is fixedly covered with a heat preservation cover 2. Several water-blocking rings 17 are fixedly mounted on the outer walls of the high-temperature section membrane wall 2 and the low-temperature section membrane wall 3, and several water-blocking rings 2 18 are fixedly mounted on the inner walls of the insulation cover 1 6 and the insulation cover 2 7. The several water-blocking rings 17 and the several water-blocking rings 2 18 are alternately distributed in sequence. By utilizing the several water-blocking rings 17 and the several water-blocking rings 2 18, the flow rate of cooling water between the high-temperature section membrane wall 2 and the insulation cover 1 6 and between the low-temperature section membrane wall 3 and the insulation cover 2 7 can be reduced, thereby extending the flow time of the cooling water, and more waste heat in the steel slag can be transferred to the cooling water, thereby improving the waste heat recovery effect and more fully recovering the waste heat in the steel slag. A connecting piece 8 is provided between the insulation cover 1 6 and the insulation cover 2 7. A feed pipe 9 is rotatably mounted on the end of the high-temperature section membrane wall 2 away from the low-temperature section membrane wall 3, and a hopper 10 with an open top is fixedly mounted on one end of the feed pipe 9. A slag discharge pipe 11 is fixedly mounted on the end of the low-temperature section membrane wall 3 away from the high-temperature section membrane wall 2.

[0038] In this embodiment, a cooling water delivery mechanism is provided on one side of the bracket 1, and the cooling water delivery mechanism is used to deliver cooling water to the insulation cover 1 6 and the insulation cover 2 7. The cooling water delivery mechanism includes a header 12, a delivery pump 13, a water suction pipe 14, a water outlet pipe 15 and a return pipe 16. The header 12 is located on one side of the bracket 1. There is cooling water in the header 12. The delivery pump 13 is fixedly mounted on the top of the header 12. The water suction pipe 14 is fixedly mounted on the suction end of the delivery pump 13. One end of the water suction pipe 14 It extends into the header 12, and the outlet pipe 15 is fixedly installed at the discharge end of the delivery pump 13. One end of the outlet pipe 15 is rotatably installed at one end of the high-temperature section membrane wall 2 through a rotary joint. One end of the return pipe 16 is rotatably installed at one end of the low-temperature section membrane wall 3 through a rotary joint. The other end of the return pipe 16 extends into the header 12. The delivery pump 13 can be used to deliver the cooling water in the header 12 to between the high-temperature section membrane wall 2 and the insulation cover 6 for cooling the steel slag and recovering the waste heat.

[0039] In this embodiment, a driving mechanism is provided on the bracket 1, and the driving mechanism is used to control the rotation of the high-temperature section membrane wall 2 and the low-temperature section membrane wall 3. The driving mechanism includes a base 22, a motor 23, a drive shaft 24, a gear 25 and an outer gear ring 26. The base 22 is fixedly mounted on the bracket 1, the motor 23 is fixedly mounted on the base 22, the drive shaft 24 is fixedly mounted on the output shaft end of the motor 23, the number of gears 25 is set to two, and the two gears 25 are fixedly mounted on the drive shaft 24. The number of outer gear rings 26 is set to two, and the two outer gears The rings 26 are fixedly mounted on the insulation cover 1 6 and the insulation cover 2 7 respectively, and the two gears 25 are respectively engaged with the corresponding outer ring gears 26. The motor 23 is used to control the rotation of the drive shaft 24. By utilizing the meshing transmission effect of the two gears 25 and the corresponding outer ring gears 26, the high-temperature section membrane wall 2 and the low-temperature section membrane wall 3 can be controlled to rotate synchronously at the same time, so that the material flows more smoothly in the waste heat recovery cylinder, thereby improving the waste heat recovery efficiency. By setting the meshing transmission of two sets of gears 25 and the outer ring gear 26, it can be ensured that the waste heat recovery cylinder is subjected to balanced force when rotating.

[0040] In this embodiment, the above-mentioned connecting piece 8 includes a pipe joint 81, a pipe joint 82 and a U-shaped tube 83. The pipe joint 81 is fixedly installed on the insulation cover 6, and one end of the pipe joint 81 extends into the insulation cover 6. The pipe joint 82 is fixedly installed on the insulation cover 7, and one end of the pipe joint 82 extends into the insulation cover 7. The two ends of the U-shaped tube 83 are respectively fixedly connected to the pipe joint 81 and the pipe joint 82. It should be noted that the number of connecting pieces 8 is set to several, and the several connecting pieces 8 are distributed in an equidistant ring, thereby ensuring that the cooling water between the high-temperature section membrane wall and the insulation cover 1 flows more smoothly and thoroughly between the low-temperature section membrane wall and the insulation cover 2.

[0041] In this embodiment, in order to enhance the stability of the feed pipe 9 so that the feed pipe 9 does not rotate with the rotation of the high-temperature section membrane wall 2, a reinforcement column 28 is fixedly installed on the bracket 1, and the top of the reinforcement column 28 is fixedly connected to the outer tube wall of the feed pipe 9.

[0042] In this embodiment, in order to discharge the generated steam out of the manifold 12, a steam discharge pipe 19 is fixedly connected to the top of the manifold 12, and a stop valve 1 is fixedly installed on the steam discharge pipe 19. In order to facilitate the addition of cooling water to the manifold 12, a water supply pipe 20 is fixedly installed on the right side of the manifold 12, and a stop valve 2 is fixedly installed on the water supply pipe 20. It should be noted that the end of the water supply pipe 20 away from the manifold 12 is connected to an external cooling water pipeline.

[0043] In this embodiment, in order to facilitate observation of the water level of the cooling water in the header 12 , an observation hole is opened on the front side wall of the header 12 , and a liquid level observation mirror 21 is fixedly installed in the observation hole.

[0044] In this embodiment, in order to enhance the stability of the driving shaft 24 , a support column 27 located between the two gears 25 is fixedly mounted on the bracket 1 , and the driving shaft 24 is rotatably mounted on the support column 27 .

[0045] In this embodiment, it should be noted that the delivery pump 13 and the motor 23 can be purchased on the market. The delivery pump 13 and the motor 23 are equipped with a power supply. Their line connection method and control method are mature technologies in this field and are fully disclosed. Therefore, they will not be described in detail in this article.

[0046] Through the above structure, the new high-temperature steel slag waste heat recovery device provided by the present application is used.

[0047] By controlling the operation of the motor 23, the output shaft of the motor 23 drives the drive shaft 24 and the two gears 25 to rotate, and the two gears 25 respectively drive the two outer gear rings 26 to rotate, so that the high-temperature section membrane wall 2 and the low-temperature section membrane wall 3 can be controlled to rotate synchronously at the same time. By controlling the operation of the delivery pump 13, the delivery pump 13 sucks the cooling water in the header 12 through the water suction pipe 14, and then delivers it to the rotary joint at one end of the high-temperature section membrane wall 2 through the water outlet pipe 15, so that the cooling water enters between the insulation cover 1 6 and the high-temperature section membrane wall 2. The cooling water between the insulation cover 1 6 and the high-temperature section membrane wall 2 then passes through the pipe joint 1 81, the U-shaped pipe 83 and the pipe joint 2 82 in sequence and flows into the low-temperature section membrane wall 3 and the insulation cover 2 7, thereby ensuring that the cooling water can circulate between the two insulation covers;

[0048] By pouring the steel slag into the hopper 10 and then flowing into the high-temperature membrane wall 2 through the feed pipe 9, the high-temperature membrane wall 2 and the low-temperature membrane wall 3 rotate synchronously at the same time, so that the steel slag in the high-temperature membrane wall 2 can smoothly flow into the low-temperature membrane wall 3. In addition, by using a plurality of slag guide plates 5, the flow range of the steel slag inside the high-temperature membrane wall 2 and the low-temperature membrane wall 3 can be increased, so that more waste heat in the steel slag can be transferred to the cooling water. The cooled steel slag is discharged from the slag discharge pipe 11.

[0049] When the cooling water flows through the high-temperature section membrane wall 2 and the insulation cover 1 6 and the low-temperature section membrane wall 3 and the insulation cover 2 7, it can fully absorb the waste heat in the steel slag. The heated cooling water and the generated steam flow back to the header 12 through the return pipe 16, and finally the steam is discharged through the steam exhaust pipe 19, which can improve the efficiency and effect of recovering the waste heat in the steel slag and can more fully recover the waste heat in the steel slag.

[0050] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A new type of high-temperature steel slag waste heat recovery device, characterized in that: The invention comprises a bracket (1) and a waste heat recovery tube rotatably mounted on the bracket (1), wherein the waste heat recovery tube comprises a high-temperature section membrane wall (2) and a low-temperature section membrane wall (3), wherein the high-temperature section membrane wall (2) and the low-temperature section membrane wall (3) are fixedly connected via a flange (4), wherein the high-temperature section membrane wall (2) and the low-temperature section membrane wall (3) are arranged in an inclined manner, wherein a plurality of slag guide plates (5) are fixedly mounted in the high-temperature section membrane wall (2) and the low-temperature section membrane wall (3), wherein the plurality of slag guide plates (5) are evenly distributed in a spiral manner, wherein the outer side of the high-temperature section membrane wall (2) is fixedly covered with a first heat insulation cover (6), and the outer side of the low-temperature section membrane wall (3) is fixedly covered with a second heat insulation cover (7), and a connecting piece (8) is arranged between the first heat insulation cover (6) and the second heat insulation cover (7); A feed pipe (9) is rotatably mounted on one end of the high-temperature section membrane wall (2) away from the low-temperature section membrane wall (3), and a hopper (10) with an open top is fixedly mounted on one end of the feed pipe (9). A slag discharge pipe (11) is fixedly mounted on one end of the low-temperature section membrane wall (3) away from the high-temperature section membrane wall (2). A plurality of water-blocking rings (17) are fixedly mounted on the outer walls of the high-temperature section membrane wall (2) and the low-temperature section membrane wall (3), and a plurality of water-blocking rings (18) are fixedly mounted on the inner walls of the heat-insulating cover (6) and the heat-insulating cover (7), and the plurality of water-blocking rings (17) and the plurality of water-blocking rings (18) are alternately distributed in sequence. A cooling water delivery mechanism is provided on one side of the bracket (1), and the cooling water delivery mechanism is used to deliver cooling water to the first heat preservation cover (6) and the second heat preservation cover (7). A driving mechanism is provided on the bracket (1), and the driving mechanism is used to control the rotation of the high-temperature section membrane wall (2) and the low-temperature section membrane wall (3).

2. The novel high-temperature steel slag waste heat recovery device according to claim 1 is characterized in that: The connecting piece (8) comprises a pipe joint 1 (81), a pipe joint 2 (82) and a U-shaped tube (83), wherein the pipe joint 1 (81) is fixedly mounted on the heat-insulating cover 1 (6), and one end of the pipe joint 1 (81) extends into the heat-insulating cover 1 (6), and the pipe joint 2 (82) is fixedly mounted on the heat-insulating cover 2 (7), and one end of the pipe joint 2 (82) extends into the heat-insulating cover 2 (7), and both ends of the U-shaped tube (83) are fixedly connected to the pipe joint 1 (81) and the pipe joint 2 (82), respectively.

3. The novel high-temperature steel slag waste heat recovery device according to claim 1 is characterized in that: A reinforcement column (28) is fixedly mounted on the bracket (1), and the top end of the reinforcement column (28) is fixedly connected to the outer tube wall of the feed tube (9).

4. The novel high-temperature steel slag waste heat recovery device according to claim 1 is characterized in that: The cooling water delivery mechanism includes a header (12), a delivery pump (13), a water suction pipe (14), a water outlet pipe (15) and a water return pipe (16), wherein the header (12) is located on one side of the bracket (1), and cooling water exists in the header (12). The delivery pump (13) is fixedly mounted on the top of the header (12), the water suction pipe (14) is fixedly mounted on the suction end of the delivery pump (13), and one end of the water suction pipe (14) extends into the header (12). The water outlet pipe (15) is fixedly mounted on the discharge end of the delivery pump (13), and one end of the water outlet pipe (15) is rotatably mounted on one end of the high-temperature section membrane wall (2) through a rotary joint. One end of the water return pipe (16) is rotatably mounted on one end of the low-temperature section membrane wall (3) through a rotary joint, and the other end of the water return pipe (16) extends into the header (12).

5. The novel high-temperature steel slag waste heat recovery device according to claim 4 is characterized in that: The top of the header (12) is fixedly connected to a steam exhaust pipe (19), on which a first stop valve is fixedly mounted. The right side of the header (12) is fixedly mounted a water supply pipe (20), on which a second stop valve is fixedly mounted.

6. The novel high-temperature steel slag waste heat recovery device according to claim 4 is characterized in that: An observation hole is provided on the front side wall of the header (12), and a liquid level observation mirror (21) is fixedly installed in the observation hole.

7. The novel high-temperature steel slag waste heat recovery device according to claim 1 is characterized in that: The driving mechanism includes a machine base (22), a motor (23), a drive shaft (24), a gear (25) and an outer gear ring (26), wherein the machine base (22) is fixedly mounted on the bracket (1), the motor (23) is fixedly mounted on the machine base (22), the drive shaft (24) is fixedly mounted on the output shaft end of the motor (23), the number of the gears (25) is set to two, and the two gears (25) are fixedly mounted on the drive shaft (24), the number of the outer gear rings (26) is set to two, and the two outer gear rings (26) are respectively fixedly mounted on the heat preservation cover 1 (6) and the heat preservation cover 2 (7), and the two gears (25) are respectively engaged with the corresponding outer gear rings (26).

8. The novel high-temperature steel slag waste heat recovery device according to claim 7 is characterized in that: A support column (27) located between two gears (25) is fixedly mounted on the bracket (1), and the drive shaft (24) is rotatably mounted on the support column (27).

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