A spraying device for a crystallizer level line
By designing independently controlled spray units and uniform nozzle structures on the horizontal line of the crystallizer, combined with filtration and pressure buffering, the problem of uneven cooling was solved, achieving uniform cooling of the cast billet and stable production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU YEYUN SPRAY TECHNOLOGY CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-07-21
AI Technical Summary
Traditional horizontal spray devices for crystallizers cannot achieve independent zone control, resulting in uneven cooling, which can easily lead to billet cracks and segregation. Inappropriate nozzle arrangement leads to uneven distribution of cooling water, and the lack of filtration and pressure buffering at the water inlet affects the stability of the cooling effect.
Design a spray device comprising independently controlled spray units on both sides, multiple sets of uniform nozzles and a central spray assembly, combined with a filter screen and a pressure buffer chamber to achieve zoned cooling and stable water pressure, ensuring uniform distribution of cooling water.
It achieves comprehensive and uniform cooling of the horizontal casting in the crystallizer, improves the quality of the casting and production efficiency, avoids defects caused by uneven cooling, and extends the service life of the nozzle.
Smart Images
Figure CN224525952U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of steel continuous casting equipment, and in particular to a spray device for the horizontal line of a crystallizer. Background Technology
[0002] In the continuous casting process of steel, the horizontal cooling line of the crystallizer is a critical link, and its cooling effect directly affects the quality of the cast billet and production efficiency. The spray device, as the core component of the horizontal cooling line system of the crystallizer, plays a vital role in ensuring uniform cooling of the cast billet.
[0003] Traditional horizontal spray systems for crystallizers have a relatively simple structure and typically employ a single spray method, making it difficult to flexibly adjust to the cooling requirements of different areas. During the cooling process, different regions of the cast billet (such as the outer arc, inner arc, and both sides) have different cooling requirements, and traditional systems cannot achieve independent control of these zones. This results in uneven cooling of the cast billet, which can easily lead to defects such as cracks and segregation, seriously affecting the quality of the cast billet.
[0004] Meanwhile, the nozzle arrangement of traditional spraying devices is not reasonable enough, and the number and arrangement of nozzles are simple, resulting in uneven distribution of cooling water and failure to form a uniform and effective cooling water film, which further aggravates the unevenness of billet cooling. In addition, the water inlet (3) is simply designed and lacks an effective filtration and pressure buffering mechanism. Impurities in the pipe can easily enter the spraying system, block the nozzles, and affect the spraying effect. Moreover, the water inlet pressure fluctuates greatly, resulting in unstable spraying water volume and difficulty in ensuring the stability of the cooling effect.
[0005] Therefore, developing a spraying device for the horizontal line of the crystallizer that can be independently controlled in zones, has a reasonable nozzle arrangement, and has effective filtration and pressure buffering functions is of great significance for improving the quality of cast billets and increasing production efficiency. Utility Model Content
[0006] To address some of the problems existing in the prior art, this utility model provides a spraying device for the horizontal line of a crystallizer. This utility model achieves independent cooling and more uniform spraying of different areas of the casting billet on the horizontal line of the crystallizer by setting external spraying components with two sets of independently controlled spraying units on both sides of the spraying device body and setting an intermediate spraying component with multiple sets of uniform nozzles in the middle.
[0007] To achieve the above objectives, this utility model provides a spraying device for the horizontal line of a crystallizer, including a spraying device body. The spraying device body includes external spraying components disposed on both sides, and an intermediate spraying component disposed between the external spraying components. The external spraying device body also includes a water inlet, which is connected to the external spraying components and the intermediate spraying component through an internal flow channel.
[0008] As a further improvement of this utility model, in order to accurately adjust the spraying parameters of each spraying unit according to the cooling requirements of different parts of the billet, achieve zoned cooling, and effectively avoid billet quality problems caused by uneven cooling, the external spraying assembly includes two independently controlled spraying units, namely a first spraying unit and a second spraying unit. The first spraying unit includes an outer arc spraying pipe and a left spraying pipe, and the second spraying unit includes an inner arc spraying pipe and a right spraying pipe.
[0009] As a further improvement of this utility model, in order to concentrate the cooling water sprayed onto the key parts of the billet, improve the utilization rate of the cooling water, enhance the cooling effect on the central area of the billet, and further ensure the uniformity of the billet cooling, the first spray unit also includes a first nozzle unit disposed on the outer arc spray pipe and the left spray pipe, and the second spray unit also includes a second nozzle unit disposed on the inner arc spray pipe and the right spray pipe, and the spraying direction of the first nozzle unit and the second nozzle unit is towards the central area of the device.
[0010] As a further improvement of this utility model, in order to expand the spray range of cooling water, make the cooling water more evenly distributed on the surface of the billet, form a more effective cooling water film, and avoid the occurrence of cooling dead corners, the first nozzle unit and the second nozzle unit are each provided with several groups. Specifically, the first nozzle unit and the second nozzle unit are multiple nozzles forming at least two rows of staggered arrangement, with the spacing between each row being consistent, and the nozzles in adjacent rows being staggered in the horizontal direction.
[0011] As a further improvement of this utility model, in order to achieve uniform cooling of the billet in all directions and at multiple levels, further optimize the cooling effect of the billet, reduce the internal stress caused by uneven cooling, and improve the internal quality of the billet, the intermediate spray assembly includes a spray main pipe and a third nozzle unit disposed on the spray main pipe. The third nozzle unit is specifically composed of multiple sets of nozzles disposed below the spray main pipe, with the spacing between each set of nozzles remaining consistent.
[0012] As a further improvement of this utility model, in order to prevent impurities from entering the spray system and clogging the nozzles, ensuring normal spraying of the nozzles, extending the service life of the nozzles, and avoiding the impact of impurities on the cooling effect and contamination of the casting billet, the water inlet interface is provided with a filter screen and a pressure buffer chamber; the filter screen is made of stainless steel with a pore size of 0.4-0.6mm, which can intercept impurities in the pipe; the pressure buffer chamber has a volume of 40-60mL and is separated from the spray channel by an elastic diaphragm.
[0013] When this invention is in operation, cooling water flows into the inlet port from an external pipe. The filter screen inside the inlet port acts as the first barrier. It is made of stainless steel with a pore size of 0.4-0.6mm, which can effectively intercept impurities in the pipe and prevent them from entering the subsequent spray system and clogging the nozzles, thus ensuring the cleanliness of the cooling water.
[0014] Filtered cooling water enters a pressure buffer chamber with a volume of 40-60 mL, which is separated from the spray channel by an elastic diaphragm. When the inlet water pressure fluctuates, the elastic diaphragm deforms, buffering the pressure change and keeping the water pressure entering the spray assembly stable, thus ensuring a stable spray water volume.
[0015] Stable-pressure cooling water flows through internal channels into the external spray assembly and the intermediate spray assembly. The first and second spray units of the external spray assembly are independently controllable. The first nozzle unit on the outer arc spray pipe and the first nozzle unit on the left spray pipe of the first spray unit, and the second nozzle unit on the inner arc spray pipe and the second nozzle unit on the right spray pipe of the second spray unit, all spray towards the central area of the device. Multiple nozzles are arranged in at least two staggered rows, ensuring uniform spraying of cooling water onto the outer arc, inner arc, and both sides of the billet. Multiple sets of evenly spaced third nozzle units below the main spray pipe of the intermediate spray assembly uniformly spray the central portion of the billet.
[0016] After the above-mentioned zoned and uniform spraying, the cooling water forms a uniform and effective cooling water film on the surface of the billet, realizing comprehensive and uniform cooling of the billet at the horizontal line of the crystallizer and improving the quality of the billet.
[0017] The beneficial effects of this utility model are as follows: comprehensive spray coverage: by setting external spray components on both sides, and the external spray components include two sets of independently controlled first and second spray units, the spray can be flexibly adjusted for different areas. At the same time, a middle spray component is set in the middle to spray the crystallizer horizontal line from multiple directions, ensuring that there are no dead corners in the spray and fully covering the crystallizer horizontal line, thereby improving the cooling effect.
[0018] Precise and efficient spraying: The spraying direction of the first and second nozzle units is towards the central area of the device, and the first and second nozzle units are composed of multiple nozzles forming at least two rows of staggered arrangement. The adjacent rows of nozzles are horizontally staggered, making the spraying more uniform and precise, which can better cool the crystallizer and improve product quality. The third nozzle unit of the middle spray assembly is evenly arranged in multiple groups below the spray main pipe, further enhancing the spraying effect. Attached Figure Description
[0019] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings: Figure 1 This is a structural diagram of the present invention.
[0020] Figure 2 This is a structural diagram of the first spray unit.
[0021] Figure 3 This is a structural diagram of the second spray unit.
[0022] Figure 4 for Figure 2 A schematic diagram of nozzle injection in the AA direction.
[0023] Figure 5 for Figure 2 A schematic diagram of nozzle injection in the CC direction.
[0024] Among them, 1 is the external spray assembly, 2 is the intermediate spray assembly, 3 is the water inlet, 4 is the first spray unit, 5 is the second spray unit, 6 is the outer arc spray pipe, 7 is the left spray pipe, 8 is the inner arc spray pipe, 9 is the right spray pipe, 10 is the first nozzle unit, 11 is the second nozzle unit, 12 is the main spray pipe, and 13 is the third nozzle unit. Detailed Implementation
[0025] To enable those skilled in the art to better understand the technical solutions in this application, the following description is provided in conjunction with the appendix. Figure 1-5 The present invention will be further described below. The following embodiments are only used to illustrate the technical solution of the present invention more clearly, and should not be used to limit the protection scope of the present invention.
[0026] like Figure 1-5 The spray device shown is for a horizontal line of a crystallizer, including a spray device body. The spray device body includes external spray components 1 disposed on both sides, and an intermediate spray component 2 disposed between the external spray components 1. The external spray device body also includes a water inlet 3, which is connected to the external spray components 1 and the intermediate spray component 2 through an internal flow channel.
[0027] The external spray assembly 1 includes two independently controlled spray units, namely a first spray unit 4 and a second spray unit 5. The first spray unit 4 includes an outer arc spray pipe 6 and a left spray pipe 7, and the second spray unit 5 includes an inner arc spray pipe 98 and a right spray pipe 9.
[0028] The first spray unit 4 further includes a first nozzle unit 10 disposed on the outer arc spray pipe 6 and the left spray pipe 7, and the second spray unit 5 further includes a second nozzle unit 11 disposed on the inner arc spray pipe 98 and the right spray pipe 9. The spraying direction of the first nozzle unit 10 and the second nozzle unit 11 is towards the central area of the device.
[0029] Both the first nozzle unit 10 and the second nozzle unit 11 are provided with several groups. Specifically, the first nozzle unit 10 and the second nozzle unit 11 are multiple nozzles forming at least two rows of staggered arrangement. The spacing between each row is consistent, and the nozzles in adjacent rows are staggered in the horizontal direction.
[0030] The intermediate spray assembly 2 includes a spray main pipe 12 and a third nozzle unit 13 disposed on the spray main pipe 12. The third nozzle unit 13 is specifically a plurality of nozzles disposed below the spray main pipe 12, with the spacing between each set of nozzles being consistent.
[0031] The water inlet 3 is equipped with a filter screen and a pressure buffer chamber. The filter screen is made of stainless steel with a pore size of 0.4-0.6mm, which can intercept impurities in the pipe. The pressure buffer chamber has a volume of 40-60mL and is separated from the spray channel by an elastic diaphragm.
[0032] When this utility model is in operation, cooling water flows into the water inlet 3 from the external pipe. The filter screen inside the water inlet 3 acts as the first barrier. It is made of stainless steel and has a pore size of 0.4-0.6mm. It can effectively intercept impurities in the pipe and prevent impurities from entering the subsequent spray system and clogging the nozzles, thus ensuring the cleanliness of the cooling water.
[0033] Filtered cooling water enters a pressure buffer chamber with a volume of 40-60 mL, which is separated from the spray channel by an elastic diaphragm. When the inlet water pressure fluctuates, the elastic diaphragm deforms, buffering the pressure change and keeping the water pressure entering the spray assembly stable, thus ensuring a stable spray water volume.
[0034] Stable pressure cooling water flows into the external spray assembly 1 and the intermediate spray assembly 2 through internal channels. The first spray unit 4 and the second spray unit 5 of the external spray assembly 1 can be controlled independently. The first nozzle unit 10 on the outer arc spray pipe 6 and the left spray pipe 7 of the first spray unit 4, and the second nozzle unit 11 on the inner arc spray pipe 98 and the right spray pipe 9 of the second spray unit 5, spray towards the central area of the device, and multiple nozzles are arranged in at least two rows in a staggered manner, which can evenly spray cooling water on the outer arc, inner arc and both sides of the billet. Multiple sets of evenly spaced third nozzle units 13 below the spray main pipe 12 of the intermediate spray assembly 2 spray the middle part of the billet evenly.
[0035] After the above-mentioned zoned and uniform spraying, the cooling water forms a uniform and effective cooling water film on the surface of the billet, realizing comprehensive and uniform cooling of the billet at the horizontal line of the crystallizer and improving the quality of the billet.
[0036] This utility model is not limited to the above embodiments. Based on the technical solutions disclosed in this utility model, those skilled in the art can make some substitutions and modifications to some of the technical features without creative labor, and these substitutions and modifications are all within the protection scope of this utility model.
Claims
1. A spraying device for a horizontal line of a crystallizer, comprising a spraying device body, characterized in that, The spray device body includes external spray components (1) arranged on both sides, and an intermediate spray component (2) arranged between the external spray components (1). The spray device body also includes a water inlet (3), which is connected to the external spray components (1) and the intermediate spray component (2) through an internal flow channel.
2. The spray device for the horizontal line of a crystallizer according to claim 1, characterized in that, The external spray assembly (1) includes two independently controlled spray units, namely the first spray unit (4) and the second spray unit (5). The first spray unit (4) includes an outer arc spray pipe (6) and a left spray pipe (7). The second spray unit (5) includes an inner arc spray pipe (8) and a right spray pipe (9).
3. A spray device for a horizontal line of a crystallizer according to claim 2, characterized in that, The first spray unit (4) further includes a first nozzle unit (10) disposed on the outer arc spray pipe (6) and the left spray pipe (7), and the second spray unit (5) further includes a second nozzle unit (11) disposed on the inner arc spray pipe (8) and the right spray pipe (9). The spraying direction of the first nozzle unit (10) and the second nozzle unit (11) is toward the central area of the device.
4. A spray device for a horizontal line of a crystallizer according to claim 3, characterized in that, The first nozzle unit (10) and the second nozzle unit (11) are each provided with several groups. Specifically, the first nozzle unit (10) and the second nozzle unit (11) are multiple nozzles forming at least two rows of staggered arrangement. The spacing between each row is consistent, and the nozzles of adjacent rows are staggered in the horizontal direction.
5. A spray device for a horizontal line of a crystallizer according to claim 1, characterized in that, The intermediate spray assembly (2) includes a spray main pipe (12) and a third nozzle unit (13) disposed on the spray main pipe (12). Specifically, the third nozzle unit (13) consists of multiple sets of nozzles disposed below the spray main pipe (12), with the spacing between each set of nozzles remaining consistent.
6. A spray device for a horizontal line of a crystallizer according to claim 1, characterized in that, The water inlet (3) is equipped with a filter screen and a pressure buffer chamber. The filter screen is made of stainless steel with a pore size of 0.4-0.6mm, which can intercept impurities in the pipe. The pressure buffer chamber has a volume of 40-60mL and is separated from the spray channel by an elastic diaphragm.