CN112903955A - Physical simulation test method and device for different steel types mixed casting in continuous casting process - Google Patents
Physical simulation test method and device for different steel types mixed casting in continuous casting process Download PDFInfo
- Publication number
- CN112903955A CN112903955A CN202110082522.0A CN202110082522A CN112903955A CN 112903955 A CN112903955 A CN 112903955A CN 202110082522 A CN202110082522 A CN 202110082522A CN 112903955 A CN112903955 A CN 112903955A
- Authority
- CN
- China
- Prior art keywords
- assembly
- ladle
- water
- tundish
- mixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/20—Metals
- G01N33/205—Metals in liquid state, e.g. molten metals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/06—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Electrochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Continuous Casting (AREA)
Abstract
The invention discloses a physical simulation test method and a physical simulation test device for mixed casting of different steel types in a continuous casting process, wherein a tundish component contains and distributes clear water for simulating molten steel; the water tank assembly is arranged at two ends of the tundish assembly; the ladle assembly is arranged at the upper end of the tundish assembly; the tundish assembly, the water tank assembly and the ladle assembly are connected through a water pipe assembly. According to the physical simulation test method and device for the mixed casting of the different steel types in the continuous casting process, provided by the invention, through adjusting the steel feeding amount, the mixed casting sequence and the potassium chloride conductivity, a dimensionless concentration curve of molten steel under different working conditions in the mixed casting process can be obtained, the initial position and the length of a mixed casting blank can be accurately predicted, and the optimization of a mixed casting process is guided. The casting blank amount of mixed casting when different steel types are mixed casting can be reduced by adjusting the pulling speed, reducing the liquid level of the tundish and other technological measures. By the device, the mixed casting rate and the mixed casting components of each position of the casting blank after mixed casting of different steel types are accurately predicted, so that the loss caused by the judgment rate of the waste of the casting blank and the judgment rate of the components of the steel plate is reduced, the cost is reduced, and the effect is improved.
Description
Technical Field
The invention relates to the field of ferrous metallurgy continuous casting, in particular to a physical simulation test method and a physical simulation test device for dissimilar steel mixed casting in a continuous casting process.
Background
Nowadays, the global competition of the steel industry is more and more motivated, and in order to get rid of the current domestic and foreign predicaments, steel enterprises need to reduce the production cost of steel products and obtain orders of small customers except for large customers as far as possible. A large number of small customers struggle for steel types in various orders. Steel enterprises must establish a continuous casting machine production mechanism with a plurality of steel types in small batches, and in order to improve the production efficiency of the continuous casting machine as much as possible, shorten idle time and save the production cost of products of the enterprises, different steel types are mixed and poured in the continuous casting process. When different steel types are mixed and cast, two molten steel can be mixed in the tundish, the components of the mixed molten steel are between the two steel types, a casting blank formed by the molten steel is called a mixed casting blank, and the components of the mixed casting blank do not belong to any heat. And carrying out degradation treatment or judgment treatment on the steel billet generated in the mixed casting process. According to experience, in order to ensure the quality of a casting blank, the cut mixed casting blank is often much longer than the actual mixed casting blank. How to accurately predict the initial position of the mixed blank and the length of the mixed casting blank is critical.
In the mixed casting process of continuous casting of different steel types, the uniform mixing of the molten steel occurs in a tundish, a crystallizer and a casting flow, wherein the mixing of the molten steel mainly occurs in the tundish. A great deal of research finds that the components of the mixed billet are closely related to the steel passing amount, the weight of the molten steel in the tundish in the mixed casting process, the flowing state of the molten steel in the tundish and the like. A simulation test can be carried out on the mixed casting process of the continuous casting different steel types by adopting physical simulation, and models between different influence factors and the mixing rate are established by adopting a stimulation-response research method based on a similarity principle, so that the quantitative influence rule of the different influence factors on the initial position of the mixed blank and the mixed blank length is obtained, the mixed casting production process is guided, and the mixed blank is optimized.
It is found from a large amount of documents that in the current physical simulation experiment (water model test) of continuous casting of different steel types, only one ladle is adopted, brine is firstly placed in a tundish, and then the molten salt in the tundish is replaced by using clean water in the ladle for casting. The method has the problems that the flow field distribution condition in the tundish in the continuous casting production process is ignored, and the obtained mixing rate is inaccurate due to the fact that the mixing is mainly in the tundish, so that the accurate judgment of the initial position of the mixed blank and the length of the mixed casting blank is influenced.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the patent title of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the patent title, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made in view of the above and/or other problems occurring in the conventional physical simulation test method and apparatus for mixed casting of dissimilar steels in a continuous casting process.
Therefore, the problem to be solved by the invention is how to improve the accuracy of predicting the initial position and the length of the mixed blank.
In order to solve the technical problems, the invention provides the following technical scheme: a physical simulation test device for mixed casting of different steel types in a continuous casting process comprises a tundish component, a pouring basket component and a water tank, wherein the tundish component is used for accommodating and distributing clear water for simulating molten steel;
the water tank assembly is arranged at two ends of the tundish assembly;
the ladle assembly is arranged at the upper end of the tundish assembly;
the tundish assembly, the water tank assembly and the steel ladle assembly are connected through a water pipe assembly.
The invention relates to a preferable scheme of a physical simulation test device for mixed casting of different steel types in a continuous casting process, wherein the physical simulation test device comprises the following components: the water tank assembly with the ladle subassembly is equipped with two, water tank assembly symmetry set up in the both sides of middle package subassembly, the ladle subassembly with the center pin of middle package subassembly is the axle, the symmetry set up in the upper end of middle package subassembly.
The invention relates to a preferable scheme of a physical simulation test device for mixed casting of different steel types in a continuous casting process, wherein the physical simulation test device comprises the following components: the ladle subassembly with between the water tank set spare the water pipe subassembly is equipped with two sets ofly respectively, including first water pipe and second water pipe, two between the ladle subassembly through a set of water pipe set spare intercommunication, including the third water pipe.
The invention relates to a preferable scheme of a physical simulation test device for mixed casting of different steel types in a continuous casting process, wherein the physical simulation test device comprises the following components: the first water pipe is communicated to the side end of the water tank assembly from the upper end of the steel tank assembly, one end, close to the steel tank assembly, of the first water pipe is a steel tank water feeding pipeline, one end, close to the water tank assembly, of the first water pipe is a water tank water feeding pipeline, and a water pump is arranged between the water tank water feeding pipeline and the water tank assembly.
The invention relates to a preferable scheme of a physical simulation test device for mixed casting of different steel types in a continuous casting process, wherein the physical simulation test device comprises the following components: the second water pipe is communicated to the upper end of the water tank assembly from the side end of the steel tank assembly, wherein one end close to the steel tank assembly is a steel tank overflow pipeline, and one end close to the water tank assembly is a water tank return pipeline.
The invention relates to a preferable scheme of a physical simulation test device for mixed casting of different steel types in a continuous casting process, wherein the physical simulation test device comprises the following components: the third water pipe is communicated to the upper end of the middle ladle assembly from the bottoms of the two ladle assemblies and comprises a long ladle water pipe, and a regulating valve is arranged on the long ladle water pipe.
The invention relates to a preferable scheme of a physical simulation test device for mixed casting of different steel types in a continuous casting process, wherein the physical simulation test device comprises the following components: the water tank assembly is also communicated with a water tank tap water pipeline, and a group of submerged nozzles are symmetrically arranged at the bottom of the tundish assembly.
The invention relates to a preferable scheme of a physical simulation test device for mixed casting of different steel types in a continuous casting process, wherein the physical simulation test device comprises the following components: clear water or a water solution containing potassium chloride is placed in the water tank component.
The invention relates to a preferable scheme of a physical simulation test device for mixed casting of different steel types in a continuous casting process, wherein the physical simulation test device comprises the following components: an aqueous solution containing potassium chloride is placed in one of the ladle assemblies, clear water is placed in the other ladle assembly, and clear water is placed in the tundish assembly.
The invention also provides a physical simulation test method for the mixed casting of the dissimilar steel in the continuous casting process, which is characterized by comprising the following steps of:
preparing saline solution, filling clear water into the two water tank assemblies through the water tank tap water pipeline, putting potassium chloride into one of the ladle assemblies, and preparing a potassium chloride aqueous solution with the conductivity higher than that of the clear water;
starting the water pump, enabling clear water and salt solution to flow into the corresponding ladle assemblies through the water tank water supply pipeline respectively, starting the ladle long water pipe and the submerged nozzle of the ladle assembly with the clear water inside, maintaining the height of molten steel in the tundish assembly stable for 2min, and simulating the flow distribution condition of molten steel on site;
changing steel types, closing the ladle long water pipe of the ladle assembly with clear water inside, and simultaneously opening the ladle long water pipe of the ladle assembly with potassium chloride aqueous solution inside to maintain the high stability of the molten steel in the tundish assembly;
and monitoring the conductivity, monitoring and recording the conductivity of the mixed molten steel at the submerged nozzle, wherein the monitoring time is 3 times of the residence time of the flowing molten steel in the tundish.
The invention has the beneficial effects that: according to the physical simulation test method and device for mixed casting of different steel types in the continuous casting process, provided by the invention, through adjusting the steel passing amount, the mixed casting sequence and the conductivity of the potassium chloride-containing aqueous solution, dimensionless concentration curves of molten steel under different working conditions in the mixed casting process can be obtained, and the initial position and the length of a mixed casting blank can be accurately predicted. The casting blank amount of mixed casting when different steel types are mixed casting can be reduced by adjusting the pulling speed, reducing the liquid level of the molten steel in the tundish and other technological measures, and the optimization of the mixed casting process is guided. By the physical simulation test method and the physical simulation test device for the mixed casting of the different steel types in the continuous casting process, the mixed casting rate and the mixed casting component of each position of the casting blank after the mixed casting of the different steel types are accurately predicted, the product quality is ensured, and meanwhile, the loss caused by the judgment rate of the waste of the casting blank and the judgment rate of the components of the steel plate is reduced, the cost is reduced, and the efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
FIG. 1 is a schematic diagram of a physical simulation test method and device for mixed casting of different steel types in a continuous casting process.
FIG. 2 is a flow chart of a physical simulation test method and a physical simulation test device for mixed casting of different steel types in a continuous casting process.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1, a first embodiment of the present invention provides a physical simulation test method and apparatus for mixed casting of different types of steel in a continuous casting process, the apparatus for the physical simulation test method and apparatus for mixed casting of different types of steel in a continuous casting process including a tundish assembly 100, a water tank assembly 200 and a steel ladle assembly 300, wherein the tundish assembly 100 receives and distributes clean water simulating molten steel; a water tank assembly 200 disposed at both ends of the tundish assembly 100; a ladle assembly 300 disposed at an upper end of the tundish assembly 100; the tundish assembly 100, the water tank assembly 200 and the ladle assembly 300 are connected by a water pipe assembly 400.
Based on the above, the tundish assembly 100, the water tank assembly 200 and the ladle assembly 300 are scaled down in accordance with the tundish size under actual production conditions. The production process of continuous casting of the dissimilar steel tundish mixed casting can be simulated according to specific requirements, and the change of the conductivity along with the time is monitored by using a conductivity meter. The tundish assembly 100 is a refractory vessel used in the continuous casting process of steel production, and receives molten steel from the ladle assembly 300 through a long nozzle and then distributed to the various molds by the submerged nozzle of the tundish assembly 100. The device provided by the embodiment can obtain the dimensionless concentration curves of the molten steel under different working conditions in the mixed casting process by adjusting the steel feeding amount, the mixed casting sequence and the conductivity of the aqueous solution containing potassium chloride, accurately predict the initial position and the length of the mixed cast blank, and guide the production process in the mixed casting process so as to obtain the shortest mixed cast blank length.
Example 2
Referring to fig. 1-2, a second embodiment of the present invention is different from the first embodiment in that: the water tank assembly 200 and the ladle assembly 300 are provided in two numbers, the water tank assembly 200 is symmetrically arranged at both sides of the tundish assembly 100, and the ladle assembly 300 is symmetrically arranged at the upper end of the tundish assembly 100 by taking the central shaft of the tundish assembly 100 as an axis.
Based on the above, in the current water model experiment, only one steel ladle is generally used for performing the experiment, a potassium chloride-containing aqueous solution (one molten steel in the simulated mixed casting process) is placed in the tundish firstly, then clear water (the other molten steel in the simulated mixed casting process) in the steel ladle is used for casting, and the clear water and the potassium chloride-containing aqueous solution are mixed in the tundish (the other molten steel in the simulated mixed casting process), so that the method ignores the flow field distribution in the tundish in the continuous casting production process, two steel ladle assemblies 300 are arranged in the embodiment, the prediction accuracy of the mixed blank can be greatly improved, and the water model experiment is difficult to complete once due to the small volume of the steel ladle assemblies 300, so that two water tank assemblies 200 are arranged at two ends of the steel ladle assemblies 300 respectively, so that the water quantity can be continuously supplied, and the.
The influence of the quantity of steel passed, the sequence of casting and the concentration of potassium chloride solution (tracer) on the initial position and length of the mixed billet during the mixed casting of different steel types in the continuous casting process was investigated. The measuring method mainly adopts a 'stimulus-response' technology, namely a method for detecting the content of the tracer to detect the mixing condition of molten steel at the submerged nozzle. In the actual measurement, the method for determining the content change of the tracer agent by mainly measuring the conductivity of the mixed solution is used for measuring the mixing time of new steel grades.
When a new steel grade is added into the tundish component 100, the conductivity gradually transits from the old steel grade to the new steel grade within a certain time, and a conductivity-time change curve tends to the new steel grade along with the replacement of the molten steel, which indicates that the new steel grade basically and completely replaces the old steel grade in the tundish component 100.
Further, two sets of water pipe assemblies 400 are respectively arranged between the ladle assembly 300 and the water tank assembly 200, wherein the two sets of water pipe assemblies 400 comprise a first water pipe 401 and a second water pipe 402, and the two ladle assemblies 300 are communicated through the set of water pipe assemblies 400 and comprise a third water pipe 403.
Wherein first water pipe 401 communicates to the side of water tank subassembly 200 from ladle subassembly 300 upper end, is close to ladle subassembly 300 one end and is ladle water-feeding pipe 401a, is close to water tank subassembly 200 one end and is water tank water-feeding pipe 401b, is equipped with water pump 401c between water tank water-feeding pipe 401b and the water tank subassembly 200, places clear water or potassium chloride solution in the water tank subassembly 200. A second water line 402 communicates from a side end of the ladle assembly 300 to an upper end of the tank assembly 200, wherein a ladle overflow line 402a is provided adjacent to the ladle assembly 300 and a tank return line 402b is provided adjacent to the tank assembly 200.
In order to ensure the water supply for one-time mixed pouring experiment, the volume of the water tank assembly 200 needs to be large enough, clean water is firstly put into the water tank assembly 200 through a water tank tap water pipeline or a potassium chloride solution, the clean water or the potassium chloride solution enters the steel ladle assembly 300 through a water tank water feeding pipeline 401b and a steel ladle water feeding pipeline 401a after a water pump 401c is started, and after the liquid level in the steel ladle assembly 300 reaches the overflow port position, the clean water or the potassium chloride solution enters a water tank water return pipeline 402b through a steel ladle overflow pipeline 402a and flows back to the water tank assembly 200 again.
The third water pipe 403 is communicated from the bottoms of the two ladle assemblies 300 to the upper end of the tundish assembly 100 and comprises a ladle long water pipe 403a, and a regulating valve is arranged on the ladle long water pipe 403 a.
Further, the third water pipe 403 is communicated from the bottoms of the two ladle assemblies 300 to the upper end of the tundish assembly 100 and comprises a ladle long water pipe 403a, an adjusting valve is arranged on the ladle long water pipe 403a, after the water pump 401c is started, clean water and saline water respectively flow into the corresponding ladle assemblies 300, the ladle long water pipe 403a and the submerged nozzle 405 of the ladle assembly 300 with the clean water inside are opened, and the molten steel height in the tundish assembly 100 is maintained stable for 2 min.
Specifically, first, a saline solution is prepared. Clear water is simultaneously filled in the two water tank assemblies 200 through the water tank tap water pipe 404, potassium chloride is put in one of the ladle assemblies 300, and a potassium chloride water solution with the conductivity obviously higher than that of the clear water is prepared.
Then, the water pump 401c is turned on, and the clean water and the saline water are respectively flowed into the corresponding ladle assembly 300 through the tank water supply pipe 401b and the ladle water supply pipe 401 a. And opening the ladle long water pipe 403a and the submerged nozzle 405 of the ladle assembly 300 with the built-in clean water, maintaining the height of the molten steel in the tundish assembly 100 stable for 2min, and simulating the flow distribution condition of the molten steel on site.
After that, the steel grade was changed. The ladle long water pipe 403a of the ladle assembly 300 containing clean water is closed, and the ladle long water pipe 403a of the ladle assembly 300 containing potassium chloride aqueous solution is opened, so that the molten steel in the tundish assembly 100 is still kept highly stable.
Finally, the conductivity was monitored. The conductivity of the mixed molten steel is monitored and recorded at the submerged nozzle 405, and the monitoring time is 3 times of the theoretical residence time of the flowing molten steel in the tundish.
The physical simulation test method and the application of the device can reduce the mixed casting blank amount when different steel types are mixed and cast by adjusting the pulling speed, reducing the liquid level of the tundish and other process measures.
It is important to note that the construction and arrangement of the present application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Moreover, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the invention, or those unrelated to enabling the invention).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a physical simulation test device that different steel grades of continuous casting process were watered in mixture which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
a tundish assembly (100) for containing and distributing clear water simulating molten steel;
a water tank assembly (200) disposed at both ends of the tundish assembly (100);
a ladle assembly (300) disposed at an upper end of the tundish assembly (100);
the tundish assembly (100), the water tank assembly (200) and the ladle assembly (300) are connected through a water pipe assembly (400).
2. The physical simulation test device for the mixed casting of the different steel types in the continuous casting process according to claim 1, characterized in that: the water tank assembly (200) and the ladle assembly (300) are arranged in two numbers, the water tank assembly (200) is symmetrically arranged on two sides of the tundish assembly (100), and the ladle assembly (300) is symmetrically arranged on the upper end of the tundish assembly (100) by taking the central shaft of the tundish assembly (100) as an axis.
3. The physical simulation test device for the mixed casting of the different steel types in the continuous casting process according to claim 1 or 2, characterized in that: the water pipe assemblies (400) between the ladle assemblies (300) and the water tank assembly (200) are respectively provided with two groups, each group comprises a first water pipe (401) and a second water pipe (402), and the two ladle assemblies (300) are communicated with each other through the water pipe assemblies (400) and comprise a third water pipe (403).
4. The physical simulation test device for the mixed casting of the different steel types in the continuous casting process according to claim 3, characterized in that: the first water pipe (401) is communicated to the side end of the water tank assembly (200) from the upper end of the steel tank assembly (300), wherein one end close to the steel tank assembly (300) is a steel tank water feeding pipeline (401a), one end close to the water tank assembly (200) is a water tank water feeding pipeline (401b), and a water pump (401c) is arranged between the water tank water feeding pipeline (401b) and the water tank assembly (200).
5. The physical simulation test device for the mixed casting of the different steel types in the continuous casting process according to claim 4, characterized in that: the second water pipe (402) is communicated to the upper end of the water tank assembly (200) from the side end of the ladle assembly (300), wherein one end close to the ladle assembly (300) is a ladle overflow pipeline (402a), and one end close to the water tank assembly (200) is a water tank return pipeline (402 b).
6. The physical simulation test device for the mixed casting of the different steel types in the continuous casting process according to claim 5, characterized in that: the third water pipe (403) is communicated to the upper end of the tundish assembly (100) from the bottoms of the two ladle assemblies (300) and comprises a ladle long water pipe (403a), and an adjusting valve is arranged on the ladle long water pipe (403 a).
7. The physical simulation test device for the mixed casting of the dissimilar steel in the continuous casting process according to any one of claims 4 to 6, wherein: the water tank assembly (200) is further communicated with a water tank tap water pipeline (404), and a group of submerged nozzles (405) are symmetrically arranged at the bottom of the tundish assembly (100).
8. The physical simulation test device for the mixed casting of the different steel types in the continuous casting process according to claim 7, characterized in that: clear water or potassium chloride solution is placed in the water tank assembly (200).
9. The physical simulation test device for the mixed casting of the different steel types in the continuous casting process according to claim 8, characterized in that: potassium chloride solution is placed in one ladle assembly (300), clear water is placed in the other ladle assembly (300), and clear water is placed in the tundish assembly (100).
10. A physical simulation test method for mixed casting of dissimilar steels in a continuous casting process according to any one of claims 1 to 9, comprising the steps of:
preparing saline solution, filling clear water into the two water tank assemblies (200) through the water tank tap water pipeline (404), putting potassium chloride into one of the ladle assemblies (300), and preparing potassium chloride aqueous solution with the conductivity higher than that of the clear water;
starting the water pump (401c), enabling clear water and salt solution to flow into the corresponding ladle assembly (300) through the water tank water supply pipeline (401b) and the ladle water supply pipeline (401a), starting the ladle long water pipe (403a) and the submerged nozzle (405) of the ladle assembly (300) with the clear water inside, maintaining the height of molten steel in the tundish assembly (100) stable for 2min, and simulating the flow distribution condition of the molten steel on site;
replacing the steel grade, closing the ladle long water pipe (403a) of the ladle assembly (300) with clean water inside, and simultaneously opening the ladle long water pipe (403a) of the ladle assembly (300) with potassium chloride aqueous solution inside to maintain the molten steel height in the tundish assembly (100) stable;
and monitoring the conductivity, monitoring and recording the conductivity of the mixed molten steel at the submerged nozzle (405), wherein the monitoring time is 3 times of the residence time of the flowing molten steel in the tundish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110082522.0A CN112903955B (en) | 2021-01-21 | 2021-01-21 | Physical simulation test method and device for different steel types mixed casting in continuous casting process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110082522.0A CN112903955B (en) | 2021-01-21 | 2021-01-21 | Physical simulation test method and device for different steel types mixed casting in continuous casting process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112903955A true CN112903955A (en) | 2021-06-04 |
| CN112903955B CN112903955B (en) | 2023-03-31 |
Family
ID=76118044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110082522.0A Active CN112903955B (en) | 2021-01-21 | 2021-01-21 | Physical simulation test method and device for different steel types mixed casting in continuous casting process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112903955B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113182500A (en) * | 2021-06-30 | 2021-07-30 | 北京科技大学 | Physical model-based method and system for predicting length and component change of mixed casting blank |
| CN113634728A (en) * | 2021-10-19 | 2021-11-12 | 北京科技大学 | Real-time determination method and display method for mixing rate of continuous casting actual mixed casting fixed-length casting blank |
Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3625277A (en) * | 1970-04-13 | 1971-12-07 | Technicon Instr | Continuous casting process |
| US5033534A (en) * | 1990-03-02 | 1991-07-23 | Nkk Corporation | Method for continuous casting of steel |
| US5948220A (en) * | 1998-02-27 | 1999-09-07 | Hoshizaki Denki Kabushiki Kaisha | Production system of electrolyzed water |
| JP2000061591A (en) * | 1998-08-24 | 2000-02-29 | Nkk Corp | Method for continuously casting steel |
| JP2010247160A (en) * | 2009-04-10 | 2010-11-04 | Sumitomo Metal Ind Ltd | Method for continuously casting steel and cast slab produced by the method |
| JP2010284685A (en) * | 2009-06-11 | 2010-12-24 | Nippon Steel Corp | Continuous casting method of steel |
| EP2308616A1 (en) * | 1999-04-08 | 2011-04-13 | Nippon Steel Corporation | Cast steel and steel material with excellent workability, method for processing molten steel therefor and method for manufacturing the cast steel and steel material |
| US20120024112A1 (en) * | 2010-07-29 | 2012-02-02 | Dressel Gregory L | Composition and process for improved efficiency in steel making |
| CN203465080U (en) * | 2013-06-08 | 2014-03-05 | 东北大学 | Continuous casting simulation test device |
| CN106153294A (en) * | 2016-07-21 | 2016-11-23 | 西安建筑科技大学 | The many stoves of a kind of large-scale steel ingot close the hydraulics simulating device watered |
| CN107282906A (en) * | 2016-04-01 | 2017-10-24 | 南京梅山冶金发展有限公司 | Determine that continuous casting is mixed to pour the mixed of process and pour rate and the experimental method of time |
| CN107552751A (en) * | 2017-08-31 | 2018-01-09 | 江苏沙钢集团淮钢特钢股份有限公司 | The different steel grade of continuous casting round bloom is mixed to pour production method |
| CN108145109A (en) * | 2018-01-25 | 2018-06-12 | 柳州钢铁股份有限公司 | The method that stream is opened in sheet billet continuous casting cast |
| CN108503141A (en) * | 2018-04-11 | 2018-09-07 | 宝钢工程技术集团有限公司 | A kind of processing method of coking wastewater removing total nitrogen |
| WO2019071666A1 (en) * | 2017-10-09 | 2019-04-18 | 安徽理工大学 | Gravity casting simulation test bench |
| CN109990972A (en) * | 2019-02-28 | 2019-07-09 | 北京首钢股份有限公司 | A kind of continuous casting water test model and method |
| CN110057864A (en) * | 2019-05-08 | 2019-07-26 | 北京科技大学 | A kind of simulator and method of molten steel heating process in the channel of the mouth of a river |
| CN110261566A (en) * | 2019-06-20 | 2019-09-20 | 涟源钢铁集团有限公司 | It is a kind of to mix the composition transfer prediction technique and its system for pouring base for different steel grade |
| CN110548848A (en) * | 2019-09-02 | 2019-12-10 | 柳州钢铁股份有限公司 | Method for preventing longitudinal crack generation and bonding breakout of slab caster |
| JP2020078815A (en) * | 2018-11-13 | 2020-05-28 | 日本製鉄株式会社 | Continuous casting method |
-
2021
- 2021-01-21 CN CN202110082522.0A patent/CN112903955B/en active Active
Patent Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3625277A (en) * | 1970-04-13 | 1971-12-07 | Technicon Instr | Continuous casting process |
| US5033534A (en) * | 1990-03-02 | 1991-07-23 | Nkk Corporation | Method for continuous casting of steel |
| US5948220A (en) * | 1998-02-27 | 1999-09-07 | Hoshizaki Denki Kabushiki Kaisha | Production system of electrolyzed water |
| JP2000061591A (en) * | 1998-08-24 | 2000-02-29 | Nkk Corp | Method for continuously casting steel |
| EP2308616A1 (en) * | 1999-04-08 | 2011-04-13 | Nippon Steel Corporation | Cast steel and steel material with excellent workability, method for processing molten steel therefor and method for manufacturing the cast steel and steel material |
| JP2010247160A (en) * | 2009-04-10 | 2010-11-04 | Sumitomo Metal Ind Ltd | Method for continuously casting steel and cast slab produced by the method |
| JP2010284685A (en) * | 2009-06-11 | 2010-12-24 | Nippon Steel Corp | Continuous casting method of steel |
| US20120024112A1 (en) * | 2010-07-29 | 2012-02-02 | Dressel Gregory L | Composition and process for improved efficiency in steel making |
| CN203465080U (en) * | 2013-06-08 | 2014-03-05 | 东北大学 | Continuous casting simulation test device |
| CN107282906A (en) * | 2016-04-01 | 2017-10-24 | 南京梅山冶金发展有限公司 | Determine that continuous casting is mixed to pour the mixed of process and pour rate and the experimental method of time |
| CN106153294A (en) * | 2016-07-21 | 2016-11-23 | 西安建筑科技大学 | The many stoves of a kind of large-scale steel ingot close the hydraulics simulating device watered |
| CN107552751A (en) * | 2017-08-31 | 2018-01-09 | 江苏沙钢集团淮钢特钢股份有限公司 | The different steel grade of continuous casting round bloom is mixed to pour production method |
| WO2019071666A1 (en) * | 2017-10-09 | 2019-04-18 | 安徽理工大学 | Gravity casting simulation test bench |
| CN108145109A (en) * | 2018-01-25 | 2018-06-12 | 柳州钢铁股份有限公司 | The method that stream is opened in sheet billet continuous casting cast |
| CN108503141A (en) * | 2018-04-11 | 2018-09-07 | 宝钢工程技术集团有限公司 | A kind of processing method of coking wastewater removing total nitrogen |
| JP2020078815A (en) * | 2018-11-13 | 2020-05-28 | 日本製鉄株式会社 | Continuous casting method |
| CN109990972A (en) * | 2019-02-28 | 2019-07-09 | 北京首钢股份有限公司 | A kind of continuous casting water test model and method |
| CN110057864A (en) * | 2019-05-08 | 2019-07-26 | 北京科技大学 | A kind of simulator and method of molten steel heating process in the channel of the mouth of a river |
| CN110261566A (en) * | 2019-06-20 | 2019-09-20 | 涟源钢铁集团有限公司 | It is a kind of to mix the composition transfer prediction technique and its system for pouring base for different steel grade |
| CN110548848A (en) * | 2019-09-02 | 2019-12-10 | 柳州钢铁股份有限公司 | Method for preventing longitudinal crack generation and bonding breakout of slab caster |
Non-Patent Citations (6)
| Title |
|---|
| CHANG WOO MYUNG ET AL: "Rashba–Dresselhaus Effect in Inorganic/Organic Lead Iodide Perovskite Interfaces", 《ACS ENERGY LETTERS》 * |
| 吕志勇等: "异钢种混浇生产实践", 《鞍钢技术》 * |
| 安航航等: "板坯连铸异钢种连浇混浇坯长度及成分变化模型的开发及应用", 《工程科学学报》 * |
| 张剑君等: "薄板坯单流中间包混浇水力学模型试验研究", 《炼钢》 * |
| 熊洪进等: "圆坯连铸机中间包流场流动特性研究", 《特钢技术》 * |
| 隋亚飞等: "连铸混浇坯成分变化规律及模型的研究", 《连铸》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113182500A (en) * | 2021-06-30 | 2021-07-30 | 北京科技大学 | Physical model-based method and system for predicting length and component change of mixed casting blank |
| CN113182500B (en) * | 2021-06-30 | 2021-10-15 | 北京科技大学 | Physical model-based method and system for predicting length and component change of mixed casting blank |
| CN113634728A (en) * | 2021-10-19 | 2021-11-12 | 北京科技大学 | Real-time determination method and display method for mixing rate of continuous casting actual mixed casting fixed-length casting blank |
| CN113634728B (en) * | 2021-10-19 | 2021-12-14 | 北京科技大学 | Real-time determination method and display method for mixing rate of continuous casting actual mixed casting fixed-length casting blank |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112903955B (en) | 2023-03-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112903955B (en) | Physical simulation test method and device for different steel types mixed casting in continuous casting process | |
| CN209157077U (en) | Vertical casting crystallization apparatus and vertical continuous casting equipment with liquid storage room | |
| CN100409975C (en) | Method and device for determining the position of the solidification point in a casting billet during continuous casting of liquid metals, in particular liquid steel work materials | |
| Liu et al. | Transient motion of inclusion cluster in vertical-bending continuous casting caster considering heat transfer and solidification | |
| CN215641223U (en) | Physical simulation test device for mixed casting of different steel types in continuous casting process | |
| CN107282906A (en) | Determine that continuous casting is mixed to pour the mixed of process and pour rate and the experimental method of time | |
| Thomas | Modeling study of intermixing in tundish and strand during a continuous-casting grade transition | |
| CN107398538A (en) | Become the decision method that steel grade cast continuous casting billet mixes steel region | |
| CN110283956A (en) | Whether go out most devices and methods therefor for rational judgment Blast furnace slag | |
| Zhou et al. | Clogging‐induced asymmetrical and transient flow pattern in a steel continuous casting slab strand measured using nail boards | |
| JP2010510510A (en) | New thermal analyzer | |
| JP2009090309A (en) | Continuous casting method for medium carbon steel preventing crack of slab by monitoring heat flux of mold copper plate | |
| Zhang et al. | Numerical simulation of influence of casting speed variation on surface fluctuation of molten steel in mold | |
| CN104183188B (en) | A kind of metal semi-solid slurry cavity filling process visual Simulation device and method | |
| CN116460259A (en) | Homogenization control method for high-carbon steel bloom continuous casting bloom | |
| CN204486734U (en) | A kind of crystallizer cooling water treatment system | |
| JP2019013950A (en) | Method and apparatus for sealing tundish injection pipe | |
| Warzecha et al. | Optimization of steel flow in the tundish by modifying its working area | |
| CN207402071U (en) | A kind of device for measuring crystallizer protecting residue melt cinder layer thickness | |
| CN202726000U (en) | Simulation detecting and testing device for vibrating technical process of continuous casting crystallizer | |
| Feng et al. | A novel investigation of initial solidified shell thickness of continuously cast slab based on solidification structure | |
| CN202038888U (en) | Miniature dissolved air flotation test device | |
| CN213068837U (en) | Water simulation test device for slab crystallizer | |
| CN220110852U (en) | Automatic mixing system | |
| JPS6340652A (en) | Simulation method for molten metal flow in tundish |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |