A rotary table type granulation heat energy recovery device

Abstract

The present application relates to the technical field of metallurgy, and particularly relates to a rotary table type granulation heat energy recovery equipment, which comprises a conveying unit provided with an input end and an output end, a top surface of the conveying unit is provided with a ladle, and the input end is provided with a chute for guiding molten iron into the ladle; a turnover unit is arranged at the output end of the conveying unit, and the turnover unit can drive the ladle to turn over; a mounting column is arranged beside the turnover unit, a top surface of the mounting column is provided with a runner for receiving molten iron poured out by the ladle; and a rotary table type casting mold mechanism is arranged on the runner, and after receiving the molten iron, the casting mold body can be driven to move to a station where a discharging part is arranged under the periodical intermittent rotation of the rotary table, and the casting mold body can be turned over and discharged under the driving of the discharging part; the present application can improve the problems of low heat exchange efficiency, slow cooling of ingot molds, waste of heat energy and low mold circulation efficiency in the ingot mold casting forming process, improve the mold circulation efficiency, improve the operation efficiency, and reduce the labor cost.

Description

Technical Field

[0001] This invention relates to the field of metallurgical technology, specifically to a rotary granulation heat recovery device. Background Technology

[0002] Granulation is a crucial link between smelting and subsequent deep processing, and is widely used in the production of various metal products such as steel and non-ferrous metals. Its operational efficiency and product quality directly determine the capacity and economic benefits of the entire production line. Currently, the industry's conventional metal granulation operations generally adopt ingot casting, which has become the mainstream choice for small and medium-sized metal processing enterprises due to its simple equipment structure, convenient operation, and wide adaptability.

[0003] In existing technologies, molten metal (such as molten iron or alloy liquid) that has been smelted and refined to a preset temperature is precisely distributed through a gating system and injected into individual mold cavities that have been pre-cleaned and preheated. After the molten metal has naturally cooled and solidified within the mold, the formed ingot is removed from the mold manually or using simple mechanical devices. The empty mold, after simple cleaning, immediately enters the next round of casting. During this process, the large amount of heat carried by the molten metal is mainly absorbed by the mold body and then slowly dissipated through natural convection and thermal radiation between the outer surface of the mold and the surrounding air. However, due to the low heat exchange rate, the mold temperature remains high for a long time, and the formed ingot is prone to sticking to the inner wall of the mold cavity. This not only increases the difficulty of demolding and requires more manpower or mechanical power, but also requires a longer time for the high-temperature mold to cool to the appropriate temperature for the next casting, significantly reducing the efficiency of mold reuse and limiting the improvement of overall production efficiency. Meanwhile, a large amount of heat energy transferred from the molten metal to the ingot mold is directly dissipated into the air through natural heat dissipation without being recycled, resulting in a waste of heat energy.

[0004] Therefore, there is an urgent need for equipment that can improve the problems of low heat exchange efficiency, slow cooling of ingot molds, waste of heat energy and low mold circulation efficiency in the existing ingot casting process. While achieving rapid cooling and solidification of molten metal to reduce the adhesion between ingot blocks and molds and reduce the difficulty of demolding, it can also recover the residual heat transferred from molten metal to ingot molds, improve the efficiency of mold recycling, thereby improving the operating efficiency of the entire metal granulation production line, reducing labor costs, improving operational safety and stability, and ensuring stable product quality. Summary of the Invention

[0005] This invention aims to provide a rotary granulation heat recovery device to improve the problems of low heat exchange efficiency, slow ingot cooling, heat waste and low mold circulation efficiency in the existing ingot casting process. While realizing rapid cooling and solidification of molten metal to reduce the adhesion between ingot and mold and reduce demolding difficulty, it recovers the waste heat transferred from molten metal to ingot mold, improves mold recycling efficiency, thereby improving the operating efficiency of the entire metal granulation production line, reducing labor costs, improving operational safety and stability, and ensuring stable product quality.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a rotary granulation heat recovery device, comprising: The conveying unit has an input end and an output end. The top surface of the conveying unit is equipped with a ladle of molten iron, and the input end is equipped with a chute for introducing molten iron into the ladle. A flipping unit is installed at the output end of the conveying unit, and the flipping unit can drive the molten iron ladle to flip. A flow channel is located beside the overturning unit to receive molten iron poured out by the overturning ladle; The rotary casting mold mechanism includes a frame, a rotary table, and a discharge section. The rotary table is rotatably mounted on the frame and can be driven to rotate periodically and intermittently. Several casting mold components are arranged in an array on the rotary table. Each casting mold component includes a casting mold body with several casting mold cavities on its surface and a heat exchange unit. The casting mold body is rotatably mounted on the rotary table. After receiving molten iron from the flow channel, the casting mold body can be driven to move to the station where the discharge section is located under the periodic and intermittent rotation of the rotary table, and then flipped over to discharge the material under the drive of the discharge section.

[0007] Furthermore, the conveying unit includes a base, and a number of equally spaced conveying rollers are provided on the top surface of the base. The molten iron ladle is placed on the conveying rollers, and a conveying motor for driving the conveying rollers is uniformly fixed on the top surface of the base. The opening of the chute is higher than the top of the molten iron ladle.

[0008] Furthermore, the flipping unit includes support frames symmetrically fixedly installed on the top surface of the base. The support frames are fixedly connected to each other by limiting rods. Limiting plates are symmetrically fixedly connected to the limiting rods, and positioning grooves are opened on the surface of the limiting plates. A hydraulic push rod is fixedly installed on the top surface of the support frame, and a rotating support is fixedly installed on the surface of the limiting plate. The output end of the hydraulic push rod is rotatably connected to the rotating support. Positioning rods are fixedly installed on both sides of the molten iron ladle corresponding to the positioning grooves.

[0009] Furthermore, it also includes an installation column, with a support base on the top of the installation column, and the trough is set on the top of the support base. The maximum tilting angle of the molten iron ladle is 80°, and the port of the trough is tilted downwards at 15° to 18°.

[0010] Furthermore, the heat exchange unit includes a heat exchange tube for recovering heat from the contents of the mold cavity. The heat exchange tube is located inside the mold body and next to the mold cavity, and a heat exchange medium flows through it. The heat exchange tube includes a bend and a connecting part. The bend is located on both sides of the mold body and is arranged in a zigzag shape. The connecting part crosses the mold body and connects the bends on both sides of the mold body.

[0011] Furthermore, the heat exchange unit also includes a heat exchange joint, which includes a cold liquid flow channel and a hot liquid flow channel. The cold liquid flow channel and the hot liquid flow channel are arranged inside the rotating shaft of the turntable and are coaxial with the rotating shaft of the turntable.

[0012] Furthermore, the maximum flipping angle of the mold body for material discharge is 110°, the cross-section of the mold cavity is trapezoidal, and a rounded transition is provided at the junction of the bottom and side surfaces of the mold cavity. A connecting groove is provided between adjacent mold cavities.

[0013] Furthermore, the discharge section includes a discharge component, which is slidably mounted on the frame, and the extension line of the sliding trajectory intersects the rotation axis of the turntable. The discharge component includes a drive unit, which is provided with a top-open slide groove. A reset drive surface and a flip drive surface are respectively provided on both sides of the slide groove. The reset drive surface is located on the slide groove facing the turntable side, and the horizontal height of the reset drive surface is lower than the horizontal height of the flip drive surface.

[0014] Furthermore, the discharge section also includes a discharge carriage, and a guide plate is provided between the discharge carriage and the turntable. The guide plate is fixedly installed on the frame, and the top of the guide plate extends to the bottom of the mold body after it is flipped.

[0015] Furthermore, the discharge section also includes a mounting frame spanning the top of the guide plate. A striking motor is fixedly mounted on the top surface of the mounting frame, and a rotating shaft is fixedly connected to the output end of the striking motor. Striking rods are symmetrically mounted on the rotating shaft. A fixed seat is symmetrically mounted on the top surface of the mounting frame, and the rotating shaft is rotatably connected to the fixed seat.

[0016] The beneficial effects of this solution are: through the coordinated operation of the conveying unit, the tilting unit, the intermittent section, and the rotary casting mold mechanism, the integrated operation of molten iron conveying, pouring, casting, waste heat recovery, and material discharge is realized, replacing the traditional decentralized operation mode, greatly improving production efficiency and reducing manual labor intensity. The heat exchange unit fully recovers the heat from the contents of the mold cavity, avoiding the waste caused by direct heat dissipation, realizing energy reuse, reducing production costs, and meeting the production requirements of energy conservation and environmental protection. The trapezoidal structure, rounded corner transition, and connecting groove design of the mold cavity, along with the rapid cooling achieved by the heat exchange unit, reduce the adhesion between the molded ingot and the mold cavity, avoid defects such as missing corners, burrs, and air holes in the ingot, and ensure stable product quality. The rotary casting mold mechanism achieves automated connection of molten iron conveying, tilting and pouring, casting mold tilting and unloading, and material guiding and cleaning, without the need for a lot of manual intervention, reducing labor costs, while improving operational safety and avoiding safety hazards caused by high-temperature operations. Attached Figure Description

[0017] Figure 1 This is a front view of the present invention; Figure 2 This is a top view of the conveying unit and the flipping unit in this invention; Figure 3 This is a side view of the flipping unit in this invention; Figure 4 This is a schematic diagram of the rotary casting mold mechanism in this invention; Figure 5 This is a schematic diagram of the assembly of the mold assembly and the discharge section in this invention; Figure 6 This is a schematic diagram of the material discharge process in this invention; Figure 7 This is a top view of the heat exchange pipeline inside the mold body in this invention; Figure 8 This is an elevation view of the heat exchange pipeline inside the mold body in this invention; Figure 9 This is a schematic diagram of the rotary casting mold mechanism in Embodiment 2 of the present invention; Figure 10 This is a schematic diagram of the internal structure of the heat exchanger joint in this invention; Figure 11 This is a schematic diagram of the mounting bracket in Embodiment 3 of the present invention.

[0018] The following detailed description illustrates the specific implementation method: The reference numerals in the accompanying drawings include: Conveying unit 1, molten iron ladle 101, base 102, conveying roller 103, conveying motor 104, chute 105, positioning rod 106; Flipping unit 2, support frame 201, limiting rod 202, limiting plate 203, positioning groove 204, hydraulic push rod 205, rotating support 206; Mounting column 3, flow channel 301, support base 302, intermittent motor 303, and rotating base 304; The mold assembly 4, mold body 410, rotating arm 411, mold cavity 412, connecting groove 413, heat exchange tube 420, mounting base 430, heat exchange joint 440, cold liquid flow channel 441, cold liquid outlet 442, hot liquid flow channel 443, and hot liquid inlet 444 are all included. Drive unit 510, slide 511, flip drive surface 512, reset drive surface 513, guide plate 520, drive shaft 530.

[0019] Mounting bracket 601, striking motor 602, rotating shaft 603, striking rod 604, fixing base 605; Turntable 7. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0022] The basic implementation examples are as follows: Figure 1-11 As shown, Figure 1 The image shows a rotary granulation heat recovery device.

[0023] Example 1: As attached Figure 1-8 As shown, an intermittent granulation waste heat recovery device of the present invention includes a conveying unit 1, a molten iron ladle 101 is provided on the top surface of the conveying unit 1, a flipping unit 2 is provided at the output end of the conveying unit 1, a mounting column 3 is provided next to the flipping unit 2, and a flow channel 301 is provided next to the flipping unit 2 for receiving the molten iron poured out by the flipping of the molten iron ladle 101.

[0024] The conveying unit 1 includes a base 102 set on the ground. Conveying rollers 103 are evenly arranged on the top surface of the base 102. The molten iron ladle 101 is placed on the top surface of the conveying rollers 103. Conveying motors 104 are evenly fixedly installed on the top surface of the base 102. The output end of the conveying motors 104 is fixedly connected to the conveying rollers 103. A chute 105 is set next to the base 102. The port of the chute 105 faces the molten iron ladle 101.

[0025] The flipping unit 2 includes a support frame 201 symmetrically fixedly installed on the top surface of the base 102. A limit rod 202 is provided between the support frames 201. A limit plate 203 is symmetrically fixedly connected to the support frame 201. A positioning groove 204 is opened on the surface of the limit plate 203. A hydraulic push rod 205 is fixedly installed on the top surface of the support frame 201, and a rotating support 206 is fixedly installed on the surface of the limiting plate 203. The output end of the hydraulic push rod 205 is rotatably connected to the rotating support 206. Positioning rods 106 are fixedly installed on the corresponding positioning grooves 204 on both sides of the molten iron ladle 101. Specifically, the molten iron ladle 101 is conveyed by the conveyor roller 103 to the side of the limiting plate 203 and continues to move a certain distance. The positioning rods 106 on both sides of the molten iron ladle 101 are engaged with the positioning grooves 204. The limiting rods 202 are similar to pin structures, which limit the molten iron ladle 101 on both sides. The hydraulic push rod 205 is activated, which drives the limiting plate 203 to rotate around the limiting rods 202. The molten iron ladle 101 is flipped along with it, and the molten iron is poured into the casting mold body 410.

[0026] The rotary casting mold mechanism includes a frame, a rotary table 7, and a discharge section. The rotary table 7 is rotatably mounted on the frame and can be driven to rotate periodically and intermittently. Several casting mold components 4 are arranged in an array on the rotary table 7. Each casting mold component 4 includes a casting mold body 410 with several casting mold cavities on its surface and a heat exchange unit. The casting mold body 410 is rotatably mounted on the rotary table 7. After receiving molten iron from the flow channel 301, the casting mold body 410 can be driven to move to the station where the discharge section is located under the periodic and intermittent rotation of the rotary table 7, and then flipped over to discharge the material under the drive of the discharge section.

[0027] In this embodiment, the rotation method of the turntable 7 is not limited. For example, a servo motor is provided between the turntable 7 and the frame as a driving component. The output shaft of the servo motor is connected to the rotating shaft of the turntable 7. The turntable 7 is periodically rotated by the periodic starting of the servo motor. A number of casting mold components 4 are provided on the upper surface of the turntable 7. The casting mold components 4 are arranged in a circumferential array along the turntable 7 and are transported to the workstation where the discharge section is located by the periodic intermittent rotation of the turntable 7, and the discharge section is used to achieve the purpose of discharge.

[0028] Specifically, the mold assembly 4 includes a mold body 410 and a heat exchange unit, such as... Figure 1 , Figure 2 As shown, a rotating arm 411 is fixed to the side of the mold body 410, and a mounting base 430 is provided between the rotating arm 411 and the turntable 7. The mold body 410 is rotatably mounted on the mounting base 430, and the mounting base 430 is fixedly mounted on the turntable 7. Figure 4 , Figure 5 As shown, the upper surface of the mold body 410 is arrayed with several mold cavities 412 and connecting grooves 413. The cross-section of the mold cavity 412 is trapezoidal, and the junction of the bottom surface and the side surface of the mold cavity 412 is provided with rounded corners to reduce molten iron splashing, so that the bottom surface of the mold cavity 412 can be uniformly heated, reducing the possibility of thermal stress concentration caused by cooling shrinkage. The connecting grooves 413 are provided on the upper surface of the mold body 410 and connect adjacent mold cavities 412 to realize the flow between the mold cavities 412, ensure that the liquid level is the same between different mold cavities 412, and under the action of the heat exchange unit, the liquid level drops rapidly to realize the condensation of high temperature lava and form a metal ingot corresponding to the shape of the mold cavity 412.

[0029] The heat exchange unit includes heat exchange tubes 420 and a heat exchange medium. The heat exchange tubes 420 are installed inside the mold body 410 and can cool the molten iron in the mold cavity 412. Specifically, for example... Figure 4 , Figure 5 As shown, the heat exchange tube 420 includes a bend and a connecting part. The bend is located on both sides of the mold body 410 and is arranged in a zigzag shape. The connecting part spans the mold body 410 and connects the bends on both sides of the mold body 410, reducing the possibility of stress concentration caused by excessive local heat exchange speed in the mold body 410. It improves the heat exchange speed without interfering with the mold cavity 412. The heat exchange medium circulates in the mold body 410 through the heat exchange tube 420 to recover the residual heat of the lava in the mold cavity 412 and accelerate the cooling speed of the lava.

[0030] The discharge section includes a discharge component and a guide plate 520. The discharge component is slidably mounted on the frame, and the extension line of its sliding trajectory intersects the rotation axis of the turntable 7. Specifically, as shown... Figure 2 , Figure 3 As shown, the discharge component includes a drive unit 510 and a drive shaft 530. The drive unit 510 has a top-opening slide groove 511. A reset drive surface 513 and a tilting drive surface 512 are respectively provided on both sides of the slide groove 511. The reset drive surface 513 is located on the side of the slide groove 511 facing the turntable 7, and its horizontal height is lower than that of the tilting drive surface 512. The drive shaft 530 is fixedly mounted on both sides of the rotating arm, and its diameter is less than or equal to the width of the slide groove 511. During tilting, as... Figure 3 As shown, the drive unit 510 slides to the left until the flip drive surface 512 abuts against the drive shaft 530, causing the mold body 410 to rotate around the hinge axis of the rotating arm 411 and the mounting base 430, so that the solidified slag in the mold cavity 412 is unloaded through the guide plate 520. After unloading, the drive unit 510 moves in the opposite direction, using the reset drive surface 513 to abut against the drive shaft 530, and drives the mold body 410 to rotate in the opposite direction.

[0031] Example 2: Example 2 is basically the same as Example 1, except that the discharge section also includes a discharge car, which is located at the lower end of the guide plate 520 and can store and transport the metal ingots discharged through the guide plate 520 to achieve uninterrupted transportation of solid materials.

[0032] The heat exchange unit also includes a heat exchange joint 440 and a heat exchanger, as shown in the attached document. Figure 9 and attached Figure 10As shown, the heat exchange joint 440 is fixed on the turntable 7 and coaxial with the rotating shaft of the turntable 7. It is provided with a cold liquid flow channel 441 and a hot liquid flow channel 443. The cold liquid flow channel 441 and the hot liquid flow channel 443 are respectively provided with a number of cold liquid outlets 442 and hot liquid inlets 444. The cooling medium flows into the heat exchange tube 420 through the cold liquid outlet 442 and returns to the hot liquid flow channel 443 through the hot liquid inlet 444. A rotary joint is provided between the liquid inlet of the heat exchanger and the hot liquid flow channel 443 and is connected through the rotary joint to realize the recovery of waste heat. A pump assembly is provided between the cold liquid flow channel 441 and the liquid outlet of the heat exchanger. The pump assembly includes a mechanical pump. The liquid inlet of the mechanical pump is also provided with a rotary joint and is connected to the cold liquid flow channel 441 through the rotary joint, thereby using the mechanical pump to provide power for the circulation of the cooling medium.

[0033] Example 3: As attached Figure 11 As shown, the other features of this embodiment are the same as those of Embodiment 2, except that: The discharge section also includes a mounting frame 601 spanning the top of the guide plate. A striking motor 602 is fixedly mounted on the top surface of the mounting frame 601. A rotating shaft 603 is fixedly connected to the output end of the striking motor 602. A striking rod 604 is symmetrically fixedly mounted on the rotating shaft 603. A fixed seat 605 is symmetrically fixedly mounted on the top surface of the mounting frame 601. The rotating shaft 603 is rotatably connected to the fixed seat 605.

[0034] Multiple mold bodies 410 located on the turntable receive molten iron from the flow channel 301 and fill the mold cavity 412. Driven by the turntable, they rotate towards the discharge section. When the first mold body 410 filling the mold cavity 412 is about to approach the discharge section, the molten iron ladle 101 stops tipping. After the first mold body 410 reaches the discharge section, the turntable stops rotating. After the metal ingot is formed in the mold cavity 412, the mold body 410 is flipped by the discharge section, and the metal ingot falls and enters the discharge car through the guide plate 520. At this time, some metal ingot may remain in the mold cavity 412. The striking motor 60 is then activated. 2. The rotating shaft 603 is driven to rotate, and the striking rod 604 rotates together, striking the bottom surface of the mold body 410, causing the metal ingot remaining in the mold cavity 412 to fall out and into the discharge car. The reset of the mold body 410 is described in Example 1. Then the turntable is started again to repeat the above operation. The amount of molten iron delivered by the trough 301 to the mold body 410 and the delivery interval can be adjusted according to the degree of flipping of the molten iron ladle 101 and the working time interval of the discharge section flipping the mold body 410 to discharge the material. This ensures the quality of the metal ingot formed in each mold cavity 412 on the mold body 410 while avoiding interference with the working interval of the discharge section.

[0035] Example 4: As attached Figure 1-3As shown, the other features of this embodiment are the same as those of Embodiment 3, except that: The maximum tilting angle of the ladle 101 is 80°, and the port of the trough 301 is tilted downward by 15-18°. Specifically, when the tilting angle of the ladle 101 is controlled to be 80° and the port of the trough 301 is tilted downward by 16°, the effective pressure head height between the trough 301 and the ladle 101 is about 198.6cm, and the molten iron is distributed more evenly on the surface of the mold body 410. Using the following formula: ; Where v is the velocity of the molten iron; ; H is the effective pressure head height, which specifically refers to the vertical height difference from the free liquid surface inside the ladle to the center line of the outlet. φ is the flow velocity coefficient, which is affected by factors such as the chute inclination angle, roughness, and viscosity of molten iron, and is usually taken as 0.85 to 0.95. Therefore, it can be concluded that when the molten iron flow rate is between 5.3 and 5.9 m / s, the possibility of uniform distribution of molten iron on the surface of the mold body 410 can be increased, thereby improving the quality of the formed metal ingot. Similarly, during the process of pouring molten iron by turning the ladle 101, the flow rate will decrease as the amount of molten iron decreases. The turning angle of the ladle 101 should be adjusted according to the actual situation to maintain a stable flow rate.

[0036] The above descriptions are merely embodiments of the present invention, and common knowledge such as specific technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solutions of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A rotary granulation heat recovery device, characterized in that, include: The conveying unit has an input end and an output end. The top surface of the conveying unit is equipped with a ladle of molten iron, and the input end is equipped with a chute for introducing molten iron into the ladle. A flipping unit is installed at the output end of the conveying unit, and the flipping unit can drive the molten iron ladle to flip. A flow channel is located beside the overturning unit to receive molten iron poured out by the overturning ladle; The rotary casting mold mechanism includes a frame, a rotary table, and a discharge section. The rotary table is rotatably mounted on the frame and can be driven to rotate periodically and intermittently. Several casting mold components are arranged in an array on the rotary table. Each casting mold component includes a casting mold body with several casting mold cavities on its surface and a heat exchange unit. The casting mold body is rotatably mounted on the rotary table. After receiving molten iron from the flow channel, the casting mold body can be driven to move to the station where the discharge section is located under the periodic and intermittent rotation of the rotary table, and then flipped over to discharge the material under the drive of the discharge section.

2. The rotary granulation heat recovery equipment as described in claim 1, characterized in that: The conveying unit includes a base, and several equally spaced conveying rollers are arranged on the top surface of the base. The molten iron ladle is placed on the conveying rollers. Conveying motors for driving the conveying rollers are uniformly fixed on the top surface of the base. The opening of the chute is higher than the top of the molten iron ladle.

3. The rotary granulation heat recovery equipment as described in claim 2, characterized in that: The flipping unit includes a support frame symmetrically fixedly installed on the top surface of the base. The support frames are fixedly connected to each other by a limiting rod. A limiting plate is symmetrically fixedly connected to the limiting rod, and a positioning groove is opened on the surface of the limiting plate. A hydraulic push rod is fixedly installed on the top surface of the support frame, and a rotating support is fixedly installed on the surface of the limiting plate. The output end of the hydraulic push rod is rotatably connected to the rotating support. Positioning rods are fixedly installed on both sides of the molten iron ladle corresponding to the positioning grooves.

4. The rotary granulation heat recovery equipment as described in claim 1, characterized in that: It also includes an installation column, with a support base on the top of the installation column. The trough is located on the top of the support base. The maximum tilting angle of the molten iron ladle is 80°, and the port of the trough is tilted downwards at 15° to 18°.

5. The rotary granulation heat recovery equipment according to claim 1, characterized in that: The heat exchange unit includes a heat exchange tube for recovering heat from the contents of the mold cavity. The heat exchange tube is located inside the mold body and next to the mold cavity, and a heat exchange medium flows through it. The heat exchange tube includes a bend and a connecting part. The bend is located on both sides of the mold body and is arranged in a zigzag shape. The connecting part crosses the mold body and connects the bends on both sides of the mold body.

6. The rotary granulation heat recovery equipment according to claim 5, characterized in that: The heat exchange unit also includes a heat exchange joint, which includes a cold liquid flow channel and a hot liquid flow channel. The cold liquid flow channel and the hot liquid flow channel are arranged inside the rotating shaft of the turntable and are coaxial with the rotating shaft of the turntable.

7. The rotary granulation heat recovery equipment according to claim 6, characterized in that: The maximum flip angle for the mold body to flip and discharge material is 110°. The cross-section of the mold cavity is trapezoidal, and the junction of the bottom and side surfaces of the mold cavity is provided with rounded corners. Connecting grooves are provided between adjacent mold cavities.

8. The granulation waste heat recovery equipment according to claim 1, characterized in that: The discharge section includes a discharge component, which is slidably mounted on the frame, and the extension line of the sliding trajectory intersects the rotation axis of the turntable. The discharge component includes a drive unit, which is provided with a top-open slide groove. A reset drive surface and a flip drive surface are respectively provided on both sides of the slide groove. The reset drive surface is located on the slide groove facing the turntable side, and the horizontal height of the reset drive surface is lower than the horizontal height of the flip drive surface.

9. The granulation waste heat recovery equipment according to claim 8, characterized in that: The discharge section also includes a discharge carriage, which is connected to the turntable by a guide plate. The guide plate is fixed on the frame and extends to the bottom of the mold body after it is flipped.

10. The rotary granulation heat recovery equipment as described in claim 9, characterized in that: The discharge section also includes a mounting frame spanning the top of the guide plate. A striking motor is fixedly mounted on the top surface of the mounting frame. A rotating shaft is fixedly connected to the output end of the striking motor. Striking rods are symmetrically mounted on the rotating shaft. A fixed seat is symmetrically mounted on the top surface of the mounting frame. The rotating shaft is rotatably connected to the fixed seat.

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