High-temperature molten slag solidification treatment device

Abstract

A high-temperature molten slag solidification treatment device includes a treatment cylinder, a rotary table unit, and a spraying unit. The rotary table unit includes a solidification disc and a drive assembly. The spraying unit includes cooling water pipes and nozzles. Multiple cooling water pipes are arranged in a ring shape; all cooling water pipes are coaxial with the solidification disc and arranged sequentially from the inside out; multiple nozzles are spaced along the cooling water pipes. This high-temperature molten slag solidification treatment device, by setting up multi-stage cooling water pipes, sprays and cools the slag in multiple stages and layers after it is thrown out by the solidification disc. This increases the coverage area of ​​the water mist and allows the slag to disperse before contacting the water mist, increasing the contact time and area between the slag and water mist, thereby improving the cooling speed and granulation efficiency of the slag.

Description

Technical Field

[0001] This utility model belongs to the field of slag treatment technology, and in particular relates to a high-temperature molten slag solidification treatment device. Background Technology

[0002] Slag treatment is a crucial step in the production processes of industries such as metallurgy and chemicals. Its purpose is to cool and solidify the molten slag at high temperatures, making it suitable for transportation, storage, and resource utilization. Slag treatment not only affects production efficiency but also directly impacts resource recycling and environmental protection. Traditional slag treatment methods primarily include water quenching, which involves cooling the high-temperature molten slag in a water tank to obtain an amorphous slag product.

[0003] There is a prior art device called "Blast Furnace Slag Granulation and Waste Heat Recovery Device" (publication number CN108611452A). This device includes a blast furnace slag granulation mechanism, a spraying mechanism, and a waste heat recovery mechanism. The blast furnace slag granulation mechanism drives a rotating cup to rotate at high speed through a motor, throwing out liquid blast furnace slag. The spraying mechanism sprays atomized water through atomizing nozzles to cover the slag on the rotating cup, thereby realizing the granulation and throwing of slag. This solves the problems of traditional water quenching methods, such as generating a large amount of harmful gases and wastewater, low efficiency, high energy consumption, and insufficient resource utilization.

[0004] Although existing technologies have made some progress in blast furnace slag treatment, certain drawbacks remain. Current cooling methods rely on a single water mist, resulting in a small mist coverage area. Furthermore, the water mist is directed directly at the rotor, leading to a short residence time of the molten slag on the rotor. This prevents the water mist from fully contacting the molten slag, resulting in slow cooling and a low temperature drop in the molten slag, hindering efficient granulation. On the other hand, prolonged contact with the molten slag causes the rotor's own temperature to rise, reducing the temperature difference between the rotor and the molten slag. Consequently, much of the molten slag remains molten and is ejected from the rotor, potentially damaging other internal structures of the equipment. Utility Model Content

[0005] This utility model aims to at least partially solve one of the technical problems in the related art.

[0006] Therefore, according to embodiments of this disclosure, a high-temperature molten slag solidification treatment apparatus is proposed, comprising:

[0007] The processing cylinder has a material inlet at the top and a material outlet at the bottom.

[0008] A rotary table unit is installed inside the processing cylinder; the rotary table unit includes:

[0009] The solidification tray is located below the material inlet and is used to receive the molten slag fed in through the material interface.

[0010] The drive assembly is connected to the curing disk; the drive assembly drives the curing disk to rotate, thereby throwing the molten slag on the curing disk outward.

[0011] A spray unit, located inside the processing cylinder and above the rotary table unit, is used to spray and solidify the molten slag ejected from the solidification disc; the spray unit includes:

[0012] Cooling water pipes are used to connect to the water supply device;

[0013] Nozzles are installed on the cooling water pipes;

[0014] The cooling water pipes are in a ring shape and there are multiple pipes; all the cooling water pipes are coaxial with the curing disc and are arranged sequentially from the inside to the outside; multiple nozzles are arranged at intervals along the cooling water pipes.

[0015] In the technical solution, the structural design uses multi-stage cooling water pipes to spray and cool the slag after it is thrown out by the solidification plate. This increases the coverage area of ​​the water mist and allows the slag to come into contact with the water mist after being thrown out and dispersed, thus increasing the contact time and area between the slag and the water mist, improving the cooling speed of the slag and the efficiency of slag granulation.

[0016] In some embodiments, the outer side of the upper surface of the curing disc is inclined upwards.

[0017] In the technical solution, the structural design allows the solidification disc to throw the slag obliquely upward. The thrown slag not only moves horizontally, but also rises and falls vertically, increasing the horizontal movement distance after the slag is thrown and extending the time the slag is in the air after being thrown. This allows the thrown slag to come into more full contact with water mist for cooling and granulation, further improving the granulation efficiency.

[0018] In some embodiments, the cooling water pipe includes a primary cooling pipe, a secondary cooling pipe, and a tertiary cooling pipe arranged sequentially from the inside to the outside;

[0019] The primary cooling pipe surrounds the space above the curing disc. The diameter of the circumference of the primary cooling pipe is less than half the inner diameter of the corresponding processing cylinder. The diameter of the circumference of the secondary cooling pipe is greater than half the inner diameter of the corresponding processing cylinder. The diameter of the circumference of the tertiary cooling pipe is also greater than half the inner diameter of the corresponding processing cylinder.

[0020] In the technical solution, the structural design places the cooling pipes on both sides of the crest of the parabola formed by the slag being thrown, ensuring that the water mist fully covers the movement trajectory of the thrown slag, thereby increasing the cooling speed and improving the granulation efficiency. On the other hand, two cooling pipes are set on the outer side of the crest of the slag throwing trajectory to ensure that the temperature has been reduced to a low level when the slag comes into contact with the inner wall of the processing cylinder, thus avoiding high temperature damage to the processing cylinder.

[0021] In some embodiments, the nozzle includes a primary nozzle, a secondary nozzle, and a tertiary nozzle;

[0022] The primary nozzle is installed on the primary cooling pipe, and the primary nozzle is tilted vertically outward;

[0023] The secondary nozzle is installed on the secondary cooling pipe, and the secondary nozzle is tilted vertically inward;

[0024] The third-stage nozzle is installed on the third-stage cooling pipe, and the third-stage nozzle is tilted vertically inward;

[0025] The lengths of the first-stage nozzle and the second-stage nozzle are both shorter than the length of the third-stage nozzle.

[0026] In the technical solution, the structural design makes the angle of the water mist sprayed from the nozzle match the parabola, and the water mist sprayed from each nozzle can act perpendicularly on the moving slag, ensuring that the water mist is fully distributed on the parabolic trajectory, improving the cooling speed and increasing the granulation efficiency.

[0027] In some embodiments, the driving component includes:

[0028] A rotating shaft, one end of which is connected to a curing disc; a driven wheel is provided on the rotating shaft;

[0029] A bearing seat is installed inside the processing cylinder; the rotating shaft is mounted on the bearing seat via a bearing.

[0030] The drive motor is located inside the processing cylinder; a drive pulley is mounted on the output shaft of the drive motor, and a transmission belt is installed between the drive pulley and the driven pulley.

[0031] In the technical solution, the structural design provides a stable drive mechanism. The rotating shaft is mounted on the shaft seat through bearings, which ensures the stable rotation of the curing disc. The drive motor drives the curing disc to rotate through the transmission belt between the drive wheel and the driven wheel, which improves the reliability and operating efficiency of the equipment.

[0032] In some embodiments, the turntable unit further includes:

[0033] A water tank is installed inside the treatment cylinder; the water tank is equipped with an inlet pipe and an outlet pipe;

[0034] The curing disc contains a cooling chamber; the rotating shaft has a water return hole that runs through both ends of the rotating shaft; the top of the rotating shaft is connected to the curing disc so that the water return hole is connected to the cooling chamber.

[0035] The bearing seat is mounted on the water tank, and the bottom end of the rotating shaft extends into the water tank;

[0036] The water inlet pipe is located inside the water tank. One end of the water inlet pipe extends outside the water tank, and the other end of the water inlet pipe passes upward through the return water hole and extends into the cooling chamber. The inner diameter of the return water hole is larger than the outer diameter of the water inlet pipe.

[0037] The water outlet pipe is located at the bottom of the water tank and is connected to the internal space of the water tank.

[0038] In the technical solution, the structural design realizes internal cooling of the curing plate. The water inlet pipe introduces cooling water into the cooling chamber of the curing plate, and the water return hole returns hot water to the water tank, forming a circulating cooling system. This effectively reduces the temperature of the curing plate, avoids the temperature of the curing plate rising after long-term use, and ensures that the molten slag falling onto the curing plate is cooled by the curing plate, extending the slag cooling treatment time and improving the efficiency of slag cooling and granulation.

[0039] In some embodiments, the return water hole is coaxially disposed in the rotating shaft; the water inlet pipe is divided into a first water inlet section and a second water inlet section; one end of the first water inlet section extends outside the water tank, and the other end is connected to one end of the second water inlet section; the second water inlet section is coaxially disposed with the rotating shaft to form a cylindrical return water channel between the second water inlet section and the return water hole.

[0040] In the technical solution, the structural design ensures that the water inlet pipe and the water return hole do not come into contact with each other during the rotation of the shaft, thus preventing structural wear. It also maintains a cylindrical water return channel between the water inlet pipe and the water return hole, ensuring smooth flow of cooling water and improving cooling efficiency.

[0041] In some embodiments, it further includes:

[0042] The installation chamber has its two ends fixedly connected to the inner wall of the processing cylinder, and its two sides are spaced apart from the inner wall of the corresponding processing cylinder. The drive assembly is located inside the installation chamber. The curing disc is located outside the installation chamber. The top plate of the installation chamber is inclined on both sides.

[0043] In the technical solution, the structural design provides a stable installation structure for the drive components. The two ends of the installation chamber are fixedly connected to the inner wall of the processing cylinder, and the two sides are spaced apart from the inner wall of the processing cylinder to ensure the stable installation of the installation chamber and the smooth falling of the slag. The top plate of the installation chamber is inclined on both sides to form a guiding surface, so that the slag falling on it can slide off, avoid the accumulation of slag on the top plate of the installation chamber, and ensure that all the slag is discharged after granulation.

[0044] In some embodiments, the processing cylinder is divided into a curing chamber and a collection chamber from top to bottom; the curing chamber is cylindrical, and the curing disc and spray unit are located in the curing chamber; the collection chamber is conical, so that its inner diameter gradually decreases from top to bottom.

[0045] In the technical solution, the structural design ensures that the ejected slag has sufficient space to move and the water mist has sufficient distribution space by setting the curing chamber in a cylindrical shape, ensuring that the water mist and slag are in full contact for a long time, and that the slag is efficiently cooled and granulated; the collection chamber is conical in shape, which facilitates the collection and discharge of the cured slag and improves the processing efficiency.

[0046] In some embodiments, the collection chamber is provided with a jacketed water-cooled wall for connecting the waste heat recovery mechanism.

[0047] In the technical solution, the structural design, by setting up a jacketed water-cooled wall and connecting it to a waste heat recovery mechanism, can not only further cool the solidified slag, but also recover waste heat for use in other production processes, thereby improving energy utilization efficiency.

[0048] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0049] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0050] Figure 1 This is a perspective structural diagram of a high-temperature molten slag solidification treatment apparatus according to an embodiment of this application;

[0051] Figure 2 This is a side view of the high-temperature molten slag solidification treatment apparatus according to an embodiment of this application;

[0052] Figure 3 This is a cross-sectional view of the high-temperature molten slag solidification treatment apparatus according to an embodiment of this application;

[0053] Figure 4 This is a cross-sectional view of the rotary table unit in the high-temperature molten slag solidification treatment apparatus according to an embodiment of this application;

[0054] Figure 5 This is a partially enlarged cross-sectional view of the high-temperature molten slag solidification treatment apparatus according to an embodiment of this application.

[0055] In the picture:

[0056] 1. Processing cylinder; 101. Material inlet; 102. Material outlet; 103. Curing chamber; 104. Collection bin; 105. Jacketed water-cooled wall;

[0057] 2. Turntable unit; 201. Curing disc; 2011. Cooling chamber; 202. Drive assembly; 2021. Rotating shaft; 2022. Shaft seat; 2023. Drive motor; 2024. Driven wheel; 2025. Drive wheel; 2026. Transmission belt; 2027. Water return hole; 203. Water tank; 2031. Water inlet pipe; 2031-1. First water inlet section; 2032-2. Second water inlet section; 2032. Water outlet pipe;

[0058] 3. Spray unit; 301. Cooling water pipe; 301-1. Primary cooling pipe; 301-2. Secondary cooling pipe; 301-3. Tertiary cooling pipe; 302. Nozzle; 302-1. Primary nozzle; 302-2. Secondary nozzle; 302-3. Tertiary nozzle;

[0059] 4. Support frame; 5. Installation compartment. Detailed Implementation

[0060] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0061] In the description of this utility model, it should be understood that the terms "center", "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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 utility model 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 utility model.

[0062] The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature.

[0063] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0064] like Figures 1 to 3 As shown in the schematic embodiment of the high-temperature molten slag solidification treatment device of this utility model, the high-temperature molten slag solidification treatment device includes a treatment cylinder 1, a turntable unit 2 and a spraying unit 3.

[0065] The processing cylinder 1 is fixed to the foundation or other fixed structure by the support frame 4. The top and bottom of the processing cylinder 1 are respectively provided with a material inlet 101 and a material outlet 102.

[0066] The turntable unit 2 is located inside the processing cylinder 1. The turntable unit 2 includes a curing disc 201 and a drive assembly 202. The curing disc 201 is located below the material inlet 101, and the drive assembly 202 is connected to the curing disc 201.

[0067] The spray unit 3 is disposed inside the processing cylinder 1 and located above the turntable unit 2. The spray unit 3 includes a cooling water pipe 301 and a nozzle 302. The cooling water pipe 301 is connected to a water supply device, and the nozzle 302 is disposed on the cooling water pipe 301.

[0068] The drive assembly 202 drives the curing disc 201 to rotate, feeding molten slag into the processing cylinder 1 through the material inlet 101. Since the rotating curing disc 201 is located below the material inlet 101, the fed molten slag falls onto the curing disc 201, and the rotating curing disc 201 throws the slag outward by centrifugal force.

[0069] The water supply device can be a municipal pipe network or a factory pipe network. The cooling water pipe 301 is connected to it. The cooling water is filled into the cooling water pipe 301 by the water pressure in the pipe network itself, and then sprayed out through the nozzle 302 to spray the slag thrown out by the solidification plate 201 below, so that the slag is cooled and solidified into granules, thus realizing the cooling and granulation of molten slag.

[0070] The cooling water pipe 301 is ring-shaped, and multiple nozzles 302 are spaced along the cooling water pipe 301, so that the nozzles 302 are set at various angle positions on the circumference of the cooling water pipe 301, spraying and cooling the slag thrown out of the curing disc 201 at different angles. Each cooling water pipe 301 is coaxial with the curing disc 201 and is arranged sequentially from the inside to the outside, so that the slag thrown out of the curing disc 201 passes under the multiple cooling water pipes 301 in sequence, thereby spraying the nozzles 302 on the multiple cooling water pipes 301 multiple times.

[0071] This structural design allows the cooling water pipes 301 to be distributed in multiple layers radially along the processing cylinder 1. The water mist sprayed from the nozzles 302 can fully cover the radial direction, and the coverage area of ​​the water mist is large, ensuring that the slag thrown out by the solidification disc 201 has sufficient contact with the water mist for a long time. On the other hand, the cooling water pipes 301 are not located directly above the solidification disc 201, but above the outer space of the solidification disc 201. This allows the slag to be dispersed after being thrown out by the solidification disc 201, and then come into contact with the water mist, increasing the contact area between the slag and the water mist. This further allows the slag to have sufficient contact with the water mist for a long time, improving the cooling speed of the slag and the efficiency of slag granulation.

[0072] See also in this application. Figures 3 to 5 The outer side of the upper surface of the curing disc 201 is inclined upwards, forming an annular inclined surface on the outer side of the upper surface of the curing disc 201. Under the action of centrifugal force, the slag slides from the center of the upper surface of the curing disc 201 outwards, and is further thrown outwards along the inclined surface of the curing disc 201. While moving outwards, it first rises and then falls.

[0073] This structural design allows the ejected slag to not only move horizontally but also rise and fall vertically, resulting in a parabolic trajectory with peaks. This increases the time the slag spends in the processing cylinder 1, enabling it to move horizontally outwards for a longer period. Consequently, it increases the horizontal distance the slag travels after being ejected, extending the time it remains suspended in the air. During this suspended period, the slag has more contact with the water mist, achieving efficient cooling and granulation.

[0074] Increasing the horizontal movement distance of the slag after it is thrown out increases the time the slag remains suspended in the air, allowing it to come into more full contact with water mist for cooling and granulation, thereby further improving granulation efficiency.

[0075] See also in this application. Figure 5The cooling water pipe 301 includes a primary cooling pipe 301-1, a secondary cooling pipe 301-2, and a tertiary cooling pipe 301-3 arranged sequentially from the inside out. The primary cooling pipe 301-1 surrounds the outer perimeter of the space above the curing tray 201, ensuring that the innermost cooling pipe is positioned above the outer space of the curing tray 201. The diameter of the circumference of the primary cooling pipe 301-1 is less than half the inner diameter of the corresponding processing cylinder 1, the diameter of the circumference of the secondary cooling pipe 301-2 is greater than half the inner diameter of the corresponding processing cylinder 1, and the diameter of the circumference of the tertiary cooling pipe 301-3 is greater than half the inner diameter of the corresponding processing cylinder 1.

[0076] The slag ejected by the solidification disc 201 forms a parabolic trajectory with its peak positioned near the midpoint of the radius of the internal space of the processing cylinder 1. This structural design ensures that cooling pipes are located above and on both sides of the peak of the parabolic trajectory, guaranteeing that the sprayed water mist fully covers the trajectory of the ejected slag. Furthermore, since the cooling water is sprayed in a diffused manner through the nozzle 302, generating a large area of ​​water mist requires a certain vertical space. The cooling pipes positioned on both sides of the peak create a certain distance between the nozzle 302 and the parabolic trajectory below, ensuring that the water mist diffuses sufficiently before contacting the slag. This guarantees sufficient contact between the water mist and the slag, increasing the cooling rate and improving granulation efficiency. Additionally, two cooling pipes are positioned outside the peak of the parabolic trajectory of the ejected slag to ensure that the temperature of the slag has already been reduced to a low level when it contacts the inner wall of the processing cylinder 1, preventing high-temperature damage to the processing cylinder 1.

[0077] See also in this application. Figure 5 Nozzle 302 includes a primary nozzle 302-1, a secondary nozzle 302-2, and a tertiary nozzle 302-3. The primary nozzle 302-1 is mounted on the primary cooling pipe 301-1 and is vertically inclined outwards. The secondary nozzle 302-2 is mounted on the secondary cooling pipe 301-2 and is vertically inclined inwards. The tertiary nozzle 302-3 is mounted on the tertiary cooling pipe 301-3 and is vertically inclined inwards. The lengths of the primary nozzle 302-1 and the secondary nozzle 302-2 are both shorter than the length of the tertiary nozzle 302-3.

[0078] This structural design allows the nozzles 302 to match the parabolic trajectory of the slag. The primary nozzle 302-1, secondary nozzle 302-2, and tertiary nozzle 302-3 can all be roughly perpendicularly aligned with the parabolic trajectory. The water mist sprayed from each nozzle 302 acts perpendicularly on the moving slag, ensuring sufficient distribution of water mist along the parabolic trajectory, increasing cooling speed, and improving granulation efficiency. Furthermore, even when the tertiary cooling pipe 301-3 is relatively far from the parabolic trajectory, the relatively long tertiary nozzles 302-3 ensure that the radial spacing between each nozzle 302 and the parabolic trajectory remains approximately the same, allowing the water mist to act on the slag to a uniform degree, ensuring sufficient cooling of the slag.

[0079] See also in this application. Figure 4 The drive assembly 202 includes a rotating shaft 2021, a bearing 2022, and a drive motor 2023. One end of the rotating shaft 2021 is connected to the curing disc 201, and a driven wheel 2024 is mounted on the rotating shaft 2021. The bearing 2022 is fixedly mounted inside the processing cylinder 1, and the rotating shaft 2021 is mounted on the bearing 2022 via bearings, allowing the rotating shaft 2021 to rotate smoothly on the bearing 2022. The drive motor 2023 is fixedly mounted inside the processing cylinder 1, and a drive wheel 2025 is mounted on the output shaft of the drive motor 2023. A transmission belt 2026 is installed between the drive wheel 2025 and the driven wheel 2024. The drive motor 2023 drives the drive wheel 2025 to rotate, which in turn drives the driven wheel 2024 to rotate via the transmission belt 2026, causing the rotating shaft 2021 to rotate with the driven wheel 2024, and driving the curing disc 201 to rotate, thus throwing out the slag that falls onto the curing disc 201.

[0080] This structural design provides a stable drive mechanism. The rotating shaft 2021 is mounted on the bearing seat 2022 through a bearing, which ensures the stable rotation of the curing disc 201. The drive motor 2023 drives the curing disc 201 to rotate through the transmission belt 2026 between the drive wheel 2025 and the driven wheel 2024, which improves the reliability and operating efficiency of the equipment.

[0081] See also in this application. Figures 3 to 5 The turntable unit 2 also includes a water tank 203. The water tank 203 is fixedly installed inside the treatment cylinder 1, and the water tank 203 is provided with an inlet pipe 2031 and an outlet pipe 2032.

[0082] The curing disc 201 has a hollow structure and a cooling chamber 2011 is provided inside. The rotating shaft 2021 is provided with a water return hole 2027, which is arranged along the length of the rotating shaft 2021 and passes through both ends of the rotating shaft 2021. The top end of the rotating shaft 2021 is connected to the curing disc 201, and the water return hole 2027 of the rotating shaft 2021 is connected to the cooling chamber 2011 of the curing disc 201. The shaft seat 2022 is fixedly mounted on the water tank 203 and is located in the space outside the water tank 203. Through the opening provided on the water tank 203, the bottom end of the rotating shaft 2021 extends from top to bottom into the internal space of the water tank 203, thereby connecting the return water hole 2027 with the internal space of the water tank 203. The outer wall of the rotating shaft 2021 can slide in contact with the corresponding opening or be spaced apart between the two. Since the opening is located at the top of the water tank 203, the cooling water in the water tank 203 will not leak out from the opening.

[0083] The inlet pipe 2031 is fixedly installed inside the water tank 203. One end of the inlet pipe 2031 extends out of the water tank 203 through an opening provided on the water tank 203 to connect to the water supply device. The opening through which the inlet pipe 2031 passes is located in the middle or upper part of the water tank 203. The liquid level in the water tank 203 is lower than the opening, and the cooling water in the water tank 203 will not leak out from the opening. To further ensure the sealing performance, the gap between the inlet pipe 2031 and the corresponding opening can be sealed using an existing sealing structure.

[0084] One end of the water inlet pipe 2031, located inside the water tank 203, passes upward through the return water hole 2027 and extends into the cooling chamber 2011, allowing the cooling water supplied by the water supply device to be directly delivered to the cooling chamber 2011 of the curing tray 201. The water inlet pipe 2031 passes through the rotating shaft 2021, which is fitted onto the water inlet pipe 2031. Driven by the drive motor 2023, the shaft rotates around the water inlet pipe 2031, thus delivering coolant into the curing tray 201 while maintaining the rotation of the curing tray 201.

[0085] The inner diameter of the return water hole 2027 is larger than the outer diameter of the inlet pipe 2031, thereby ensuring that there is a gap between the inner wall of the return water hole 2027 and the outer wall of the inlet pipe 2031. After the coolant enters the cooling chamber 2011, it can flow back to the return water hole 2027 and then fall down into the water tank 203.

[0086] The outlet pipe 2032 is located at the bottom of the water tank 203 and is connected to the internal space of the water tank 203. The coolant falls into the water tank 203 through the return water hole 2027 and is discharged from the water tank 203 through the outlet pipe 2032 so that it can be returned to the water supply device after cooling, thereby realizing the recycling of coolant.

[0087] This structural design enables circulating cooling inside the curing disc 201. The water inlet pipe 2031 introduces cooling water into the cooling chamber 2011 of the curing disc 201, and the water return hole 2027 returns the hot water that has absorbed the heat from the slag to the water tank 203, forming a circulating cooling system. This effectively reduces the temperature of the curing disc 201 and maintains a large temperature difference between the curing disc 201 and the slag. As a result, heat exchange occurs and the slag cools down as soon as it comes into contact with the curing disc 201, increasing the total cooling time of the slag inside the processing cylinder 1. This ensures that the slag is cooled quickly and thoroughly through contact and spraying inside the processing cylinder 1, improving the efficiency of slag cooling and granulation.

[0088] See also in this application. Figure 4 The return water hole 2027 is coaxially arranged in the rotating shaft 2021, ensuring that the return water hole 2027 does not move radially during the rotation of the rotating shaft 2021. The water inlet pipe 2031 is divided into a first water inlet section 2031-1 and a second water inlet section 2031-2. One end of the first water inlet section 2031-1 extends outside the water tank 203, and the other end connects to one end of the second water inlet section 2031-2. The second water inlet section 2031-2 is coaxially arranged with the rotating shaft 2021, forming a cylindrical return water channel between the second water inlet section 2031-2 and the return water hole 2027. During the rotation of the rotating shaft 2021, the distance between the inner wall of the return water hole 2027 and the inner wall of the water inlet pipe 2031 remains fixed at all angles, the return water channel maintains its cylindrical shape, and the width of the space remains unchanged.

[0089] This structural design ensures that during the rotation of the shaft 2021, not only is mutual contact between the inlet pipe 2031 and the return hole 2027 avoided, thus preventing structural wear, but also that the space width of the return channel is kept stable, preventing the increase of coolant return pressure due to local space reduction, ensuring smooth flow of coolant in the return hole 2027, and improving cooling efficiency.

[0090] See also in this application. Figures 1 to 3 as well as Figure 5The high-temperature molten slag solidification treatment device also includes an installation chamber 5. The two ends of the installation chamber 5 are fixedly connected to the inner walls of the treatment cylinder 1, ensuring the installation chamber 5 is securely fixed inside the treatment cylinder 1. Both sides of the installation chamber 5 are spaced apart from the inner walls of the corresponding side of the treatment cylinder 1. That is, in the direction perpendicular to the length of the installation chamber 5, there is a gap between the installation chamber 5 and the inner wall of the corresponding side of the treatment cylinder 1, allowing the slag thrown out by the solidification disc 201 to fall through this gap and be discharged to the material outlet 102 at the bottom. The drive assembly 202 is located inside the installation chamber 5, while the solidification disc 201 is located outside the installation chamber 5. The top plate of the installation chamber 5 is inclined on both sides to prevent the top plate from being horizontal, which would cause slag falling onto the top plate to remain on it. When the turntable unit 2 has a water tank 203, the water tank 203 is also fixedly installed inside the installation chamber 5. For ease of maintenance, both ends of the installation chamber 5 can penetrate the treatment cylinder 1.

[0091] This structural design provides a stable installation space for the drive assembly 202, separating it from the slag inside the processing cylinder 1 and ensuring stable operation of the drive assembly 202. The two ends of the installation chamber 5 are fixedly connected to the inner wall of the processing cylinder 1, while the sides are spaced apart from the inner wall of the processing cylinder 1, ensuring stable installation of the installation chamber 5 and smooth slag descent. The top plate of the installation chamber 5 is inclined on both sides, forming a guiding surface, allowing the slag falling onto it to slide down along the inclined plane, preventing slag accumulation on the top plate of the installation chamber 5 and ensuring that all granulated slag is discharged.

[0092] See also in this application. Figure 2 , Figure 3 and Figure 5 The processing cylinder 1 includes a solidification chamber 103 and a collection chamber 104. The solidification chamber 103 is located above the collection chamber 104, and its bottom end connects to the top end of the collection chamber 104. The solidification chamber 103 is cylindrical, and the solidification disc 201 and the spray unit 3 are both located within it. The collection chamber 104 is conical, with its inner diameter gradually decreasing from top to bottom. This structural design maximizes the space of the solidification chamber 103 by making it cylindrical, ensuring that the ejected slag has sufficient movement space within it, and that the water mist has ample distribution space, ensuring prolonged and sufficient contact between the water mist and the slag, resulting in efficient cooling and granulation of the slag. The conical shape of the collection chamber 104 facilitates the collection and discharge of the solidified slag, improving processing efficiency.

[0093] See also in this application. Figure 3 and Figure 5The collection chamber 104 is equipped with a jacketed water-cooled wall 105, which contains cooling liquid pipes connected to a waste heat recovery mechanism. As the slag slides down the inner wall of the collection chamber 104, it exchanges heat with the cooling liquid in the jacketed water-cooled wall 105. The cooling liquid carries the heat through the pipes to the waste heat recovery mechanism for recovery and utilization. This structural design, by incorporating the jacketed water-cooled wall 105 and connecting it to the waste heat recovery mechanism, not only further cools the solidified slag but also recovers waste heat for use in other production processes, thus improving energy efficiency.

[0094] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0095] The above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A high-temperature molten slag solidification treatment device characterized by comprising: include: The processing cylinder has a material inlet at the top and a material outlet at the bottom. The turntable unit is disposed inside the processing cylinder; The turntable unit includes: A solidification tray is located below the material inlet to receive molten slag fed into the material inlet. A drive assembly is connected to the curing disk; the drive assembly drives the curing disk to rotate, thereby throwing the molten slag on the curing disk outward. A spray unit, disposed within the processing cylinder and positioned above the rotary table unit, is used to spray the molten slag ejected from the solidification disc; the spray unit includes: Cooling water pipes are used to connect to the water supply device; The nozzle is mounted on the cooling water pipe; The cooling water pipes are ring-shaped and there are multiple of them; all of the multiple cooling water pipes are coaxial with the curing disc and are arranged sequentially from the inside to the outside; multiple nozzles are arranged at intervals along the cooling water pipes.

2. The apparatus for high temperature molten slag solidification treatment according to claim 1, wherein The outer side of the upper surface of the curing disc is inclined upwards.

3. The apparatus for high temperature molten slag solidification treatment according to claim 2, wherein The cooling water pipes include a primary cooling pipe, a secondary cooling pipe, and a tertiary cooling pipe arranged sequentially from the inside out. The primary cooling pipe surrounds the space above the curing disc. The diameter of the circumference of the primary cooling pipe is less than half the inner diameter of the corresponding processing cylinder. The diameter of the circumference of the secondary cooling pipe is greater than half the inner diameter of the corresponding processing cylinder. The diameter of the circumference of the tertiary cooling pipe is greater than half the inner diameter of the corresponding processing cylinder.

4. The apparatus for high temperature molten slag solidification treatment according to claim 3, wherein The nozzle includes a primary nozzle, a secondary nozzle, and a tertiary nozzle; The primary nozzle is disposed on the primary cooling pipe, and the primary nozzle is inclined vertically outward; The secondary nozzle is disposed on the secondary cooling pipe, and the secondary nozzle is inclined vertically inward; The three-stage nozzle is disposed on the three-stage cooling pipe, and the three-stage nozzle is inclined vertically inward; The lengths of the first-stage nozzle and the second-stage nozzle are both less than the length of the third-stage nozzle.

5. The apparatus for high temperature molten slag solidification treatment according to claim 1, wherein The driving component includes: A rotating shaft, one end of which is connected to the curing disc; a driven wheel is provided on the rotating shaft; A bearing seat is disposed within the processing cylinder; the rotating shaft is mounted on the bearing seat via a bearing. A drive motor is installed inside the processing cylinder; a drive wheel is mounted on the output shaft of the drive motor, and a transmission belt is installed between the drive wheel and the driven wheel.

6. The apparatus for high temperature molten slag solidification treatment according to claim 5, wherein The turntable unit further includes: a water tank, disposed inside the processing cylinder; the water tank is provided with an inlet pipe and an outlet pipe; The curing disc is provided with a cooling chamber; the rotating shaft is provided with a water return hole, which passes through both ends of the rotating shaft; the top end of the rotating shaft is connected to the curing disc so that the water return hole is connected to the cooling chamber. The bearing seat is mounted on the water tank, and the bottom end of the rotating shaft extends into the water tank; The water inlet pipe is installed inside the water tank. One end of the water inlet pipe extends outside the water tank, and the other end of the water inlet pipe passes upward through the return water hole and extends into the cooling cavity. The inner diameter of the return water hole is larger than the outer diameter of the water inlet pipe. The water outlet pipe is located at the bottom of the water tank and is connected to the internal space of the water tank.

7. The apparatus for high temperature molten slag solidification treatment according to claim 6, wherein The return water hole is coaxially disposed in the rotating shaft; the water inlet pipe is divided into a first water inlet section and a second water inlet section; one end of the first water inlet section extends outside the water tank, and the other end is connected to one end of the second water inlet section; the second water inlet section is coaxially disposed with the rotating shaft to form a cylindrical return water channel between the second water inlet section and the return water hole.

8. The apparatus for high temperature molten slag solidification treatment according to claim 1, wherein Further includes: The installation chamber has two ends fixedly connected to the inner wall of the processing cylinder, and both sides of the installation chamber are spaced apart from the inner wall of the corresponding side of the processing cylinder; the drive assembly is disposed inside the installation chamber; the curing disc is disposed outside the installation chamber; and both sides of the top plate of the installation chamber are inclined.

9. The apparatus for high temperature molten slag solidification treatment according to claim 1, wherein The processing cylinder is divided into a curing chamber and a collection chamber from top to bottom; the curing chamber is cylindrical, and the curing disc and the spraying unit are both located in the curing chamber; the collection chamber is conical, so that its inner diameter gradually decreases from top to bottom.

10. The apparatus for high temperature molten slag solidification treatment according to claim 9, wherein The collection chamber is equipped with a jacketed water-cooled wall, which is used to connect the waste heat recovery mechanism.

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