Aerosol cooling equipment for thin-strip casting and rolling machine

Abstract

The invention discloses gas mist cooling equipment for a thin strip casting and rolling machine. The gas mist cooling equipment comprises a spraying assembly, a mixing assembly, a water and gas conveying unit, a gas conveying pipeline and a cooling liquid conveying pipeline. The gas conveying pipeline and the cooling liquid conveying pipeline are arranged in parallel and extend in the first direction. The mixing assembly and the water and gas conveying unit extend in the first direction, the water and gas conveying unit is located between the mixing assembly and the gas conveying pipeline and the cooling liquid conveying pipeline which are arranged in parallel, and a plurality of mixers arranged in the first direction are arranged in the mixing assembly. The water-gas conveying unit is internally provided with a plurality of gas flow channels and cooling liquid flow channels which are respectively communicated with the mixer; the spraying assembly comprises a fixed part and a movable part which extend in the first direction, and a gap between the fixed part and the movable part forms a spraying flow channel extending in the first direction. The technical problems that in the prior art, aerial fog cooling equipment is not uniform in cooling, and the transverse temperature difference of the plate face is too large can be solved.

Description

Technical Field

[0001] This invention relates to the field of aerosol cooling technology, and in particular to an aerosol cooling device for a thin strip casting and rolling mill. Background Technology

[0002] In the current field of thin strip casting and rolling technology, aerosol cooling equipment plays a crucial role, directly affecting the temperature control, surface quality, and final mechanical properties of the strip during the casting and rolling process. One of the core components of this equipment is the aerosol cooling device that integrates multiple aerosol nozzles.

[0003] Currently, the aerosol cooling equipment for thin strip casting and rolling consists of a water vapor manifold with multiple aerosol nozzles installed. The water vapor manifold and nozzles are connected and replicated, forming a single unit. As the backbone of the cooling system, the water vapor manifold is designed with full consideration of the efficiency of cooling medium delivery and the uniformity of its distribution. The internal flow channels of the manifold are calculated and optimized to ensure that the water mist mixture flows smoothly and stably to each nozzle. Multiple nozzles are installed and closely arranged on the manifold. These nozzles and the manifold are integrated through a replication connection, meaning they are designed as an inseparable whole during the manufacturing process.

[0004] In thin strip casting and rolling processes, multiple nozzles are typically installed on the water vapor manifold to improve cooling efficiency and ensure uniform cooling of the strip surface. These nozzles are densely arranged along the strip width, forming a cooling water curtain that covers the entire strip surface. However, although this design theoretically achieves broad and uniform cooling coverage, in practical applications, due to the inherent characteristics of nozzle spraying and interference from various external factors, water volume deviations often occur in the transverse direction of the manifold, leading to a series of problems. The direct result is often uneven cooling in the aerosol cooling equipment and excessive transverse temperature differences across the strip surface. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the technical problem to be solved by the embodiments of the present invention is to provide an air mist cooling device for a thin strip casting and rolling mill, which can solve the technical problems of uneven cooling and excessive transverse temperature difference of the plate surface in the prior art.

[0006] The specific technical solution of this invention is as follows:

[0007] An aerosol cooling device for a thin strip casting and rolling mill, the aerosol cooling device for the thin strip casting and rolling mill comprising:

[0008] Injection assembly, mixing assembly, water-air delivery unit, gas delivery pipeline, and coolant delivery pipeline;

[0009] The gas delivery pipe and the coolant delivery pipe are arranged side by side and extend along a first direction; the mixing assembly and the water-gas delivery unit extend along the first direction, the water-gas delivery unit is located between the mixing assembly and the parallel gas delivery pipe and the coolant delivery pipe, the mixing assembly has a plurality of mixers arranged along the first direction, and the water-gas delivery unit has a plurality of gas flow channels and coolant flow channels respectively connected to the mixers; the injection assembly includes a fixed member and a movable member extending along the first direction, the gap between the fixed member and the movable member forms an injection flow channel extending along the first direction, the outlets of the plurality of mixers are connected to different positions of the injection flow channel, and the size of the gap between at least a portion of the movable member and the fixed member is adjustable.

[0010] Preferably, the fixing member is fixedly disposed on the mixing assembly; the aerosol cooling device for the thin strip casting and rolling mill further includes:

[0011] A plurality of adjustment components are arranged along the first direction to adjust the size of the gap between at least a portion of the movable member and the fixed member.

[0012] Preferably, the movable component has a plurality of through holes extending along the second direction, and the plurality of through holes are arranged along the first direction, which is perpendicular to the second direction. A connector is provided in the through hole and screwed into the mixing component. The connector can fix the area of ​​the movable component corresponding to itself to the mixing component, so as to lock the size of the gap between the area of ​​the movable component and the fixing component.

[0013] Preferably, the movable member is bendable in the first direction so that the gap between different areas of the movable member and the fixed member can be different.

[0014] Preferably, the adjustment component includes:

[0015] A base fixedly connected to the hybrid assembly, the base having an opening extending along the second direction, the opening having an internal thread;

[0016] An adjusting member screwed into the opening is capable of moving along the second direction when screwed and abutting against the moving member, thereby driving the moving member to move.

[0017] Preferably, the adjustment component includes:

[0018] An elastic element that causes the movable element to tend to move away from the fixed element.

[0019] Preferably, the elastic element is disposed between the moving element and the hybrid assembly;

[0020] or,

[0021] The elastic element is disposed between the movable element and the connecting element;

[0022] or,

[0023] The elastic element is disposed between the movable element and the fixed element.

[0024] Preferably, the aerosol cooling device for the thin strip casting and rolling mill includes:

[0025] A clamping plate is located between the gas delivery pipe and the coolant delivery pipe, and the clamping plate is fixedly connected to the mixing component by bolts.

[0026] Preferably, the aerosol cooling device for the thin strip casting and rolling mill includes:

[0027] A gas supply pipe, which is connected to the central region of the gas delivery pipeline;

[0028] A coolant supply pipe, which is connected to the central region of the coolant delivery pipe.

[0029] Preferably, the fluid in the jet channel flows generally along a third direction, which is generally perpendicular to the first direction; the jet channel is linear in a cross-section perpendicular to the fluid flow direction.

[0030] The technical solution of the present invention has the following significant beneficial effects:

[0031] In this application, compressed gas is delivered to gas channels at different locations within the water-gas delivery unit via gas delivery pipes, while coolant is delivered to coolant channels at different locations within the water-gas delivery unit via coolant delivery pipes. Multiple gas channels and multiple coolant channels respectively feed the compressed gas and coolant into mixers arranged at different locations along the first direction. The compressed gas and coolant mix in the mixers, and the resulting mixture exits from the mixer outlet into spray channels at different locations. Because the gap between the fixed member and the moving member forms a spray channel extending along the first direction, the mixture diffuses relatively uniformly in the first direction within the spray channel. Furthermore, since the outlet of the spray channel is linear, the mixture can be uniformly sprayed out in the first direction from the outlet of the spray channel. This results in a relatively balanced amount of water received by the entire area covered by the fixed member and the moving member, with smaller differences compared to the differences generated by multiple nozzles in the prior art. Consequently, the cooling degree of the thin strip is more uniform at various locations, and the lateral temperature difference of the plate surface is lower.

[0032] Specific embodiments of the invention are disclosed in detail below with reference to the description and accompanying drawings, indicating how the principles of the invention can be employed. It should be understood that the embodiments of the invention are not therefore limited in scope. Features described and / or shown for one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments. Attached Figure Description

[0033] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of the invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely illustrative to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. Those skilled in the art, guided by the teachings of this invention, can select various possible shapes and proportions to implement the invention according to specific circumstances.

[0034] Figure 1 This is a cross-sectional view of an air mist cooling device for a thin strip casting and rolling mill in an embodiment of the present invention;

[0035] Figure 2 This is a front view of an air mist cooling device for a thin strip casting and rolling mill in an embodiment of the present invention;

[0036] Figure 3 This is a top view of an air mist cooling device for a thin strip casting and rolling mill in an embodiment of the present invention.

[0037] The reference numerals in the above figures are as follows:

[0038] 1. Gas delivery pipeline; 2. Coolant delivery pipeline; 3. Water-gas delivery unit; 31. Gas flow channel; 32. Coolant flow channel; 4. Mixing assembly; 41. Mixer; 5. Injection assembly; 51. Fixing component; 52. Moving component; 521. Through hole; 522. Connecting component; 53. Injection flow channel; 6. Adjustment assembly; 61. Base; 62. Adjustment component; 7. Clamping plate; 8. Gas supply pipe; 9. Coolant supply pipe. Detailed Implementation

[0039] The details of the present invention can be more clearly understood by referring to the accompanying drawings and the description of specific embodiments. However, the specific embodiments of the present invention described herein are for illustrative purposes only and should not be construed as limiting the invention in any way. Under the teachings of this invention, those skilled in the art can conceive of any possible modifications based on the invention, all of which should be considered within the scope of the invention. It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there may be an intervening element. The terms "mounted," "connected," and "connected" should be interpreted broadly, for example, they can refer to mechanical or electrical connections, or internal communication between two elements, and can be direct or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0041] To address the problems existing in the prior art, the applicant has researched and analyzed current aerosol cooling equipment. Specifically, when nozzles spray cooling water, the spray pattern is typically a fan-shaped structure. This fan-shaped structure means that the cooling water spreads at a certain angle after leaving the nozzle, covering a certain area. However, the applicant has found that due to slight differences in the manufacturing precision, installation position, and spray pressure of the nozzles, the fan-shaped water curtains sprayed by different nozzles may not be completely consistent in width, density, and coverage. When these water curtains are superimposed in the transverse direction of the manifold, uneven water distribution may occur, meaning that some areas have too much water, while other areas have relatively less water.

[0042] The direct consequence of water volume deviation is uneven transverse cooling temperature of the strip. In areas with excessive water volume, the cooling water rapidly carries away a large amount of heat, causing the strip temperature in that area to drop rapidly; while in areas with insufficient water volume, the cooling effect is relatively weak, and the strip temperature is relatively high. This temperature difference creates a significant gradient in the width direction of the strip, resulting in different microstructures and mechanical properties after cooling.

[0043] Testing of the performance of existing thin strips cooled by aerosol cooling equipment revealed significant differences in strength across the strip surface after cooling. Due to uneven cooling temperatures, the strip underwent different heat treatment processes in the transverse direction, resulting in variations in microstructure characteristics such as grain size, phase composition, and dislocation density across different regions. These microstructure characteristics directly determine the strip's mechanical properties, including strength, hardness, and toughness. Therefore, the transverse strength differences after cooling can be very significant, severely impacting the overall performance and quality stability of the product. Large strength differences can lead to various problems during subsequent processing and use. For example, during stamping, areas with lower strength may be more prone to deformation or cracking; during welding, weld areas with varying strengths may struggle to maintain good connection strength; and during service, strength differences can lead to stress concentration and fatigue cracking. These issues reduce the strip's service life and safety, failing to meet the stringent requirements of high-end users for material quality and performance stability.

[0044] The air mist cooling equipment used in thin strip casting and rolling mills plays a crucial role because it cools the ultra-thin strip during rolling. For example, when the thin strip is steel strip, it can play a key role in the development of new steel grades, especially high-strength steel.

[0045] Given that the thickness of the strip in the thin strip casting and rolling process is generally controlled to within 1 mm, this extremely thin dimensional characteristic makes the strip exceptionally sensitive to changes in cooling water volume. Even minute fluctuations in water volume can significantly affect the temperature distribution of the strip within a very short time. While the currently widely adopted combination design of air mist cooling manifolds and nozzles can theoretically achieve uniform distribution of the cooling medium, in practical applications, due to the combined effects of multiple factors such as nozzle manufacturing precision, installation position, fluid dynamics characteristics, and operating parameter adjustments, it is often unavoidable that differences in transverse cooling temperatures across the strip surface will occur. These transverse cooling temperature differences not only lead to localized overheating or undercooling areas in the strip during cooling, affecting the strip's microstructure and phase transformation processes, but also further cause inhomogeneities in the strip product's performance. Specifically, this manifests as fluctuations in the strip's strength, hardness, toughness, and other mechanical properties in the transverse direction, making it difficult for the product to meet the stringent material consistency requirements of high-end users. In addition, uneven cooling temperature can also have an adverse effect on the surface quality of the strip. Uneven cooling may cause defects such as internal stress concentration or microcracks. These problems not only reduce the surface quality of the strip, but may also affect its subsequent processing performance and service life.

[0046] In order to solve the technical problems of uneven cooling and excessive transverse temperature difference on the plate surface in existing aerosol cooling equipment, this application proposes an aerosol cooling device for thin strip casting and rolling mills. Figure 1 This is a cross-sectional view of an air mist cooling device for a thin strip casting and rolling mill in an embodiment of the present invention. Figure 2 This is a front view of an air mist cooling device for a thin strip casting and rolling mill according to an embodiment of the present invention. Figure 3 This is a top view of an air mist cooling device for a thin strip casting and rolling mill according to an embodiment of the present invention, such as... Figures 1 to 3 As shown, the aerosol cooling equipment for a thin strip casting and rolling mill may include: a spraying assembly 5, a mixing assembly 4, a water-air conveying unit 3, a gas conveying pipeline 1, and a coolant conveying pipeline 2.

[0047] Among them, Figures 1 to 3 As shown, a gas delivery pipe 1 and a coolant delivery pipe 2 are arranged side by side and extend along a first direction. Compressed gas, such as air or nitrogen, flows through gas delivery pipe 1. Coolant, such as water, flows through coolant delivery pipe 2. The first direction is... Figure 1 The direction is perpendicular to the paper. The mixing component 4 and the water-gas delivery unit 3 extend along the first direction, with the water-gas delivery unit 3 located between the mixing component 4 and the parallel gas delivery pipe 1 and coolant delivery pipe 2.

[0048] like Figure 1As shown, the mixing assembly 4 has multiple mixers 41 arranged along a first direction. Furthermore, the mixers 41 can be evenly arranged. The mixing assembly 4 can be a long strip-shaped block, within which multiple mixers 41 arranged along the first direction are disposed. Each mixer 41 can be an independent device for mixing gas and coolant, or it can be a mixing chamber formed inside the block. Each mixer 41 can have a gas inlet, a coolant inlet, and an outlet. The gas inlet and coolant inlet can be the same inlet or two different inlets.

[0049] like Figure 1 As shown, the water-gas conveying unit 3 has multiple gas channels 31 and coolant channels 32 that are respectively connected to the mixer 41. The water-gas conveying unit 3 can be a long strip-shaped block, with multiple gas channels 31 and coolant channels 32 that are respectively connected to the gas inlet and coolant inlet of the mixer 41. The number of gas channels 31 and coolant channels 32 can correspond to the number of mixers 41.

[0050] like Figure 1 As shown, the injection assembly 5 includes a fixed member 51 and a movable member 52 extending along a first direction. The gap between the fixed member 51 and the movable member 52 forms an injection channel 53 extending along the first direction. The outlets of a plurality of mixers 41 communicate with different locations of the injection channel 53. The lower end of the injection channel 53 is an inlet, and the upper end of the injection channel 53 is an outlet. Furthermore, the communication locations of the outlets of the plurality of mixers 41 with the injection channel 53 can be evenly distributed along the first direction. The size of the gap between at least a portion of the movable member 52 and the fixed member 51 can be adjusted. The fluid in the injection channel 53 flows generally along a third direction, which is generally perpendicular to the first direction. The third direction can be... Figure 1 The vertical direction in the middle. For example... Figure 3 As shown, the jet channel 53 is linear in cross-section perpendicular to the flow direction of the fluid.

[0051] Furthermore, such as Figures 1 to 3 As shown, the aerosol cooling device for a thin strip casting and rolling mill includes: a gas supply pipe 8, which is connected to the central region of the gas delivery pipe 1; and a coolant supply pipe 9, which is connected to the central region of the coolant delivery pipe 2. The gas supply pipe 8 supplies compressed gas to the gas delivery pipe 1. The coolant supply pipe 9 supplies coolant to the coolant delivery pipe 2. This structure allows for a more balanced supply of compressed gas and coolant to all locations in both the gas delivery pipe 1 and the coolant delivery pipe 2, preventing excessively low flow rates in certain areas.

[0052] like Figures 1 to 3As shown, the aerosol cooling device for a thin strip casting and rolling mill includes: a clamping plate 7, a gas delivery pipe 1, and a coolant delivery pipe 2 located between the clamping plate 7 and the mixing assembly 4. The clamping plate 7 is fixedly connected to the mixing assembly 4 by bolts. This method secures the gas delivery pipe 1 and the coolant delivery pipe 2. There can be two clamping plates 7, located at opposite ends of the gas delivery pipe 1 and the coolant delivery pipe 2.

[0053] In this application, compressed gas can be transported through gas delivery pipe 1 to gas channels 31 at different positions within water-gas delivery unit 3, while coolant is transported through coolant delivery pipe 2 to coolant channels 32 at different positions within water-gas delivery unit 3. Multiple gas channels 31 and multiple coolant channels 32 respectively send compressed gas and coolant into mixers 41 arranged at different positions along the first direction. The compressed gas and coolant are mixed in mixers 41, and the mixed substance is output from the outlet of mixer 41 into spray channels 53 at different positions. Since the gap between the fixed member 51 and the moving member 52 forms a spray channel 53 extending along the first direction, the mixed substance diffuses to a relatively uniform degree in the first direction within the spray channel 53. Subsequently, since the outlet of the spray channel 53 is linear, the mixed substance can be uniformly sprayed out in the first direction from the outlet of the spray channel 53. In this way, the water volume obtained in the entire area covered by the fixed member 51 and the moving member 52 is basically uniform, and the relative difference is smaller than that produced by multiple nozzles in the prior art. This results in more uniform cooling of the thin strip at various locations and a lower lateral temperature difference across the plate surface.

[0054] Of course, when the coolant sprayed from the jet channel 53 is too large or too small at various positions in the first direction, the size of the gap between all areas of the moving part 52 and the fixed part 51 can be adjusted to change the flow rate of the coolant at various positions in the first direction.

[0055] Furthermore, such as Figure 1 As shown, the fastener 51 is fixedly mounted on the mixing assembly 4. For example, the fastener 51 can be fixedly connected to the mixing assembly 4 by bolts. Furthermore, the bolts can be screwed into the water-air conveying unit 3, thus achieving a detachable fixed connection between the fastener 51, the mixing assembly 4, and the water-air conveying unit 3.

[0056] like Figures 1 to 3As shown, the aerosol cooling device for a thin strip casting mill may include: a plurality of adjusting components 6, which are arranged along a first direction to adjust the size of the gap between at least a portion of the moving member 52 and the fixed member 51. By adjusting the size of the gap between at least a portion of the moving member 52 and the fixed member 51, the flow rate of the spray channel 53 at different positions in the first direction can be fine-tuned. This allows for fine-tuning of the spray channel 53 based on the coolant sprayed from the spraying component 5 at different positions; that is, the spray channel 53 corresponding to a position with uneven coolant distribution is fine-tuned to ensure uniform coolant distribution at that position. For example, if more coolant is sprayed near a certain position, the gap of the spray channel 53 at that position is reduced.

[0057] In one specific implementation, such as Figures 1 to 3 As shown, the movable component 52 has multiple through holes 521 extending along a second direction. These through holes 521 are arranged along a first direction, perpendicular to the second direction. A connector 522, screwed into the mixing component 4, is provided within each through hole 521. The connector 522 fixes the corresponding area of ​​the movable component 52 to the mixing component 4, thus locking the gap between that area of ​​the movable component 52 and the fixing component 51. When the jet channel 53 near a certain position needs fine-tuning, the corresponding connector 522 near that position can be loosened, and then the adjusting component 6 near that position can be adjusted. This causes a slight movement or bending of the corresponding movable component 52 at that position, changing the gap of the jet channel 53 at that position. After the change, the corresponding connector 522 near that position is tightened to fix the corresponding movable component 52 at that position, locking the gap between that area of ​​the movable component 52 and the fixing component 51.

[0058] In order to change the gap between the movable member 52 and the fixed member 51 at a certain position, the movable member 52 can be bent in a first direction so that the gap between different areas of the movable member 52 and the fixed member 51 can be different.

[0059] In one specific implementation, such as Figure 1 and Figure 3 As shown, the adjusting assembly 6 includes: a base 61 fixedly connected to the mixing assembly 4, the base 61 having an opening extending in a second direction, the opening having an internal thread; and an adjusting member 62 screwed into the opening, the adjusting member 62 being able to move in the second direction when screwed, and abutting against the moving member 52 to drive the moving member 52 to move. The adjusting member 62 can be a component similar to a bolt. In this way, the moving member 52 can be moved by screwing the adjusting member 62, thereby adjusting the gap between the moving member 52 and the fixed member 51 at a certain position.

[0060] Furthermore, the adjusting component 6 may include an elastic element that causes the movable component 52 to tend to move away from the fixed component 51. In this manner, when the adjusting component 62 moves away from the fixed component 51, the position of the corresponding movable component 52 can also move away from the fixed component 51 under the action of the elastic element. There may be multiple elastic elements distributed near the corresponding positions of the adjusting components 62.

[0061] Alternatively, the elastic element may be disposed between the movable element 52 and the mixing assembly 4. Alternatively, the elastic element may be disposed between the movable element 52 and the connecting element 522. Alternatively, the elastic element may be disposed between the movable element 52 and the fixing element 51.

[0062] This application integrates and restructures the existing single aerosol cooling nozzle, redesigning it into a highly efficient and precise linear spray assembly 5. This transformation aims to eliminate the water volume deviation problem that exists when coolant is sprayed onto the thin strip surface in the lateral direction, thereby ensuring that the thin strip enjoys a uniform and consistent cooling effect during the cooling process. This improvement not only provides a more stable and reliable cooling method for aerosol cooling equipment, but also greatly enhances the controllability and precision of the cooling process, thereby ensuring that the thin strip maintains consistent mechanical properties and surface quality after cooling.

[0063] The uniform cooling effect of this application provides a strong guarantee for maintaining the shape of the strip. In previous cooling processes, due to the uneven distribution of cooling water, the strip often experienced local deformation or warping, which seriously affected the appearance and performance of the product. After adopting the solution in this application, the above problems have been significantly improved. The strip can maintain a stable shape and size during the cooling process, providing a reliable foundation for subsequent processing and use. The uniformity and controllability of the cooling process result in the strip exhibiting more consistent mechanical properties and microstructure characteristics in the transverse direction. This not only improves the overall quality level of the strip but also meets the stringent requirements of the high-end market for consistent material performance.

[0064] All articles and references disclosed herein, including patent applications and publications, are incorporated herein by reference for various purposes. The term “substantially constitutes…” used to describe a combination should include the identified element, component, part, or step, as well as other elements, components, parts, or steps that do not substantially affect the essential novelty of the combination. The use of the terms “comprising” or “including” to describe combinations of elements, components, parts, or steps herein also contemplates embodiments substantially constituted by such elements, components, parts, or steps. The use of the term “may” herein is intended to indicate that any described attribute “may” include is optional. Multiple elements, components, parts, or steps can be provided by a single integrated element, component, part, or step. Alternatively, a single integrated element, component, part, or step can be divided into multiple separate elements, components, parts, or steps. The disclosure of “a” or “an” used to describe an element, component, part, or step does not imply exclusion of other elements, components, parts, or steps.

[0065] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An aerosol cooling device for a thin strip casting and rolling mill, characterized in that, The aerosol cooling device for the thin strip casting and rolling mill includes: Injection assembly, mixing assembly, water-air delivery unit, gas delivery pipeline, and coolant delivery pipeline; The gas delivery pipe and the coolant delivery pipe are arranged side by side and extend along a first direction; the mixing assembly and the water-gas delivery unit extend along the first direction, the water-gas delivery unit is located between the mixing assembly and the parallel gas delivery pipe and the coolant delivery pipe, the mixing assembly has a plurality of mixers arranged along the first direction, and the water-gas delivery unit has a plurality of gas flow channels and coolant flow channels respectively connected to the mixers; the injection assembly includes a fixed member and a movable member extending along the first direction, the gap between the fixed member and the movable member forms an injection flow channel extending along the first direction, the outlets of the plurality of mixers are connected to different positions of the injection flow channel, and the size of the gap between at least a portion of the movable member and the fixed member is adjustable.

2. The aerosol cooling device for a thin strip casting and rolling mill according to claim 1, characterized in that, The fixing element is fixedly mounted on the mixing assembly; the aerosol cooling device for the thin strip casting and rolling mill further includes: A plurality of adjustment components are arranged along the first direction to adjust the size of the gap between at least a portion of the movable member and the fixed member.

3. The aerosol cooling device for a thin strip casting and rolling mill according to claim 2, characterized in that, The movable component has multiple through holes extending along the second direction, and the multiple through holes are arranged along the first direction, which is perpendicular to the second direction. A connector is provided in each through hole and screwed into the mixing component. The connector can fix the corresponding area of ​​the movable component to the mixing component, so as to lock the size of the gap between the area of ​​the movable component and the fixing component.

4. The aerosol cooling device for a thin strip casting and rolling mill according to claim 2, characterized in that, The movable member can be bent in the first direction so that the gap between different areas of the movable member and the fixed member can be different.

5. The aerosol cooling device for a thin strip casting and rolling mill according to claim 3, characterized in that, The adjustment component includes: A base fixedly connected to the hybrid assembly, the base having an opening extending along the second direction, the opening having an internal thread; An adjusting member screwed into the opening is capable of moving along the second direction when screwed and abutting against the moving member, thereby driving the moving member to move.

6. The aerosol cooling device for a thin strip casting and rolling mill according to claim 3, characterized in that, The adjustment component includes: An elastic element that causes the movable element to tend to move away from the fixed element.

7. The aerosol cooling device for a thin strip casting and rolling mill according to claim 6, characterized in that, The elastic element is disposed between the moving element and the hybrid assembly; or, The elastic element is disposed between the movable element and the connecting element; or, The elastic element is disposed between the movable element and the fixed element.

8. The aerosol cooling device for a thin strip casting and rolling mill according to claim 1, characterized in that, The aerosol cooling device for the thin strip casting and rolling mill includes: A clamping plate is located between the gas delivery pipe and the coolant delivery pipe, and the clamping plate is fixedly connected to the mixing component by bolts.

9. The aerosol cooling device for a thin strip casting and rolling mill according to claim 1, characterized in that, The aerosol cooling device for the thin strip casting and rolling mill includes: A gas supply pipe, which is connected to the central region of the gas delivery pipeline; A coolant supply pipe, which is connected to the central region of the coolant delivery pipe.

10. The aerosol cooling device for a thin strip casting and rolling mill according to claim 1, characterized in that, The fluid in the jet channel generally flows along a third direction, which is generally perpendicular to the first direction; the jet channel is linear in a cross-section perpendicular to the fluid flow direction.

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