Multiphase reaction wetting device and test method

Abstract

The invention belongs to the technical field of ferrous metallurgy, and particularly relates to a multiphase reaction wetting device and a test method.The multiphase reaction wetting device comprises a horizontal furnace, a hanging assembly, a supporting body, a processor and at least two image collectors, a containing groove is formed in the top of the supporting body, and two carbon plates are placed in the containing groove in an intersecting mode; the included angle of the two carbon plates is the same as the opening of the containing groove in direction, a first melt is placed between the included angle of the two carbon plates, and the hanging assembly is arranged on the upper side of the opening of the containing groove and used for hanging a second melt. The two image collectors are arranged at the two ends of the horizontal furnace respectively and used for recording angle changes of wetting of the two melts on the two carbonaceous plates, and the processor is used for analyzing the interactive influence of wetting behaviors of the two carbonaceous plates on the two melts according to the obtained angle changes. The device can deeply analyze the synergistic wetting process of two melts of slag and iron between the surfaces of two carbonaceous materials, provides effective guidance for improving the air permeability and liquid permeability of the blast furnace, and ensures the operation stability of the blast furnace.

Description

Technical Field

[0001] The invention belongs to the technical field of iron and steel metallurgy, and in particular relates to a multiphase reaction wetting device and a test method. Background Art

[0002] With the increasing requirements for high efficiency, energy saving and environmental protection in the steel production process, traditional ironmaking and smelting processes are facing increasing pressure in terms of energy conservation, emission reduction and comprehensive resource utilization. The slag-iron-carbon reaction is one of the key chemical reactions in the metallurgical process. Especially in the blast furnace ironmaking process, the interaction between slag, iron and carbon determines the efficiency of the metallurgical reaction and the quality of steel products. However, in the traditional blast furnace smelting process, the wettability of slag, iron melt, coke and refractory materials directly affects the air permeability and liquid permeability of the blast furnace. Therefore, it is extremely important to clarify their wettability characteristics in the smelting process.

[0003] During the blast furnace production process, a multiphase interaction process of molten iron, slag, coke and refractory materials will occur below the soft melting zone. The wetting behavior of molten iron, slag, coke or refractory materials not only leads to erosion, but also affects the changes in the air and liquid permeability inside the blast furnace hearth.

[0004] In current research, researchers only focus on the wetting behavior of the melt and a single carbon substrate, and often ignore the multiphase interaction process of molten iron, slag, coke, and carbonaceous refractory materials caused by the complex environment inside the blast furnace. For example, the Chinese patent with publication number CN117030545B discloses an experimental device and experimental method for studying the wetting process of iron-carbon reaction. The experimental method considers the wetting process of molten iron and carbonaceous materials, only considers one carbon substrate, and does not consider the wetting behavior of the second phase liquid slag in the carbon substrate. For another example, the Chinese patent with publication number CN116150996A proposes a device and method for measuring the dynamic wetting angle, but this technology also only involves two-phase reactions, and also considers only the wetting behavior process of the melt and a single carbon substrate. Another example is the Chinese patent with the patent publication number CN117233043B, which discloses a method and application for determining the cooperative wetting behavior of iron-slag on the surface of carbonaceous materials. Although the cooperative wetting behavior of two melts, slag and molten iron, on the surface of carbonaceous materials is considered, the method still considers a carbon substrate, and it is difficult to fully consider the influence of the synergistic effect between slag and molten iron on the multiphase wetting behavior of the two carbonaceous materials. As a result, it is difficult to provide more accurate guidance on improving the air permeability and liquid permeability of blast furnaces, affecting the stability of blast furnace operation. Summary of the invention

[0005] In order to solve the problems existing in the prior art, the purpose of the present invention is to provide a multiphase reaction wetting device and a test method, which can fully consider the influence of the synergistic effect between the two melts on the multiphase wetting behavior of the surfaces of the two carbonaceous materials, and can deeply analyze the synergistic wetting process of the two melts on the surfaces of the two carbonaceous materials, thereby providing effective guidance for improving the air permeability and liquid permeability of the blast furnace and ensuring the stability of the blast furnace operation.

[0006] The technical solution of the present invention is: A multiphase reaction wetting device and test method, comprising a horizontal furnace, a multiphase reaction unit and an acquisition and analysis unit. The multiphase reaction unit is placed in the horizontal furnace, and the multiphase reaction unit comprises a suspension component and a support body, the top of the support body has a placement slot, the placement slot is used to place two carbonaceous plates and a first melt respectively, the suspension component is arranged on the upper side of the opening of the placement slot and connected to the support body, and the suspension component is used to suspend the second melt. The acquisition and analysis unit comprises a processor and at least two image collectors, the two image collectors are respectively placed at the two ends of the horizontal furnace, the two image collectors are electrically connected to the processor, the two image collectors are used to record the angle changes of the first melt and the second melt with the two carbonaceous plates, and the processor is used to analyze the interactive influence of the wetting behavior of the two carbonaceous plates with the first melt and the second melt according to the acquired angle changes. A placement groove is used to place and support two carbonaceous plates of different materials, so that the first melt can be placed between the two carbonaceous plates, and then the second melt can be suspended between the two carbonaceous plates using a suspension assembly. When the horizontal furnace is heated, the suspended second melt and the first melt are at different heights to avoid mutual obstruction, so that the image collectors on both sides can clearly record the melting process of the two melts in the horizontal furnace, thereby studying the multiphase synergistic reaction wetting process of the two melts and the two different carbonaceous materials.

[0007] Preferably, the placement groove is arranged in a V-shape. The placement groove with a V-shaped structure can provide a more stable contact effect for the placement of the two carbonaceous plates, meet the position setting requirements of the two carbonaceous plates, and facilitate the conduct of the test.

[0008] Preferably, the support body includes a base and two support blocks arranged opposite to each other, the two support blocks are cylinders with isosceles right triangle cross sections, the two support blocks are respectively fixed to the base through a right-angled side, and the hypotenuses of the two support blocks are connected end to end. The above arrangement makes the angle of the placement groove present 90 degrees, which is convenient for the stable support of the two carbonaceous plates during the test process, and also facilitates the simplification of the shape of the two carbonaceous plates and the first melt between them, so that the two carbonaceous plates can fully contact the first melt between them.

[0009] The support block is made of a material with high thermal conductivity, ensuring that the temperatures of the first melt and the second melt are sufficiently close to each other, thereby obtaining accurate test results.

[0010] Preferably, the image collector includes a high-speed camera, which can realize clear video recording of the experimental process and facilitate the extraction of the wetting angle.

[0011] Preferably, the two sides of the horizontal furnace opposite to the image collector are made of transparent materials, which facilitates the high-speed camera to shoot outside the horizontal furnace, avoids the gas inside the horizontal furnace from adhering to the lens of the high-speed camera, and ensures the clarity of the shooting.

[0012] Preferably, the test method of the multiphase reaction wetting device comprises the following steps: Two carbon plates made of different materials are placed end to end in a placement groove, and the angle formed by the two carbon plates is opposite to the opening of the placement groove.

[0013] The first melt is placed between the angles of the two carbonaceous plates to form a state of common contact with the two carbonaceous plates. The second melt is suspended through a suspension assembly just above the angle of the two carbonaceous plates, located on one side of the first melt, and the vertical projection of the second melt is tangent to the first melt.

[0014] The horizontal furnace is filled with inert gas and heated to melt the first melt and the second melt. After the second melt is melted, it drips between the two carbonaceous plates and contacts with the solution of the first melt, and wets the two carbonaceous plates.

[0015] The wetting process of the first melt and the second melt with the two carbonaceous plates is recorded by an image collector and uploaded to a processor. The processor extracts the wetting angles of the first melt and the second melt with the two carbonaceous plates during the wetting process through the recorded videos to obtain the changing pattern of the wetting angles of the first melt and the second melt with the two carbonaceous plates.

[0016] Compared with the prior art, the multiphase reaction wetting device and test method of the present invention have the following beneficial effects: The experimental method provided by this device can study the multiphase synergistic reaction wetting process of two melts with two different carbonaceous materials, and can simulate the wetting contact behavior of the slag and iron melts in contact with two different carbonaceous materials inside the blast furnace. The image collector can observe and obtain the changes in the wetting angles of the molten iron and slag with the two types of carbonaceous materials throughout the process, and can deeply analyze the synergistic wetting process between the slag and iron melts on the surfaces of the two carbonaceous materials, thereby providing effective guidance for improving the air permeability and liquid permeability of the blast furnace and ensuring the stability of the blast furnace operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1Schematic diagram of the overall structure of the multiphase reaction wetting device in an embodiment of the present invention.

[0018] Figure 2 It is a schematic diagram of the reaction wetting between two melts and two carbonaceous materials in an embodiment of the present invention.

[0019] Figure 3 for Figure 2 Longitudinal section view of AA in the figure.

[0020] Figure 4 It is a schematic diagram of the reaction wetting between a single melt and two carbonaceous materials in an embodiment of the present invention.

[0021] Figure 5 Schematic diagram of the wetting angle of the melt and two carbonaceous materials during reaction wetting in an embodiment of the present invention.

[0022] Description of reference numerals: 1. Horizontal furnace, 2. Suspension assembly, 3. Support body, 31. Base, 32. Support block, 4. Carbon plate, 5. Placement groove, 6. First melt, 7. Second melt, 8. Processor, 9. Image collector. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0024] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0025] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0026] See also Figures 1 to 5As shown, in order to fully consider the influence of the synergistic effect between the two melts on the multiphase wetting behavior of the surfaces of the two carbonaceous materials, the synergistic wetting process between the slag and iron melts on the surfaces of the two carbonaceous materials is deeply analyzed, which provides effective guidance for improving the air permeability and liquid permeability of the blast furnace and ensures the stability of the blast furnace operation. This embodiment provides a multiphase reaction wetting device, including a horizontal furnace 1, a multiphase reaction unit, and a collection and analysis unit. The horizontal furnace 1 is a cylindrical sealed cavity. The multiphase reaction unit is placed in a horizontal furnace 1, and the multiphase reaction unit includes a suspension component 2 and a support body 3. The top of the support body 3 is provided with a placement groove 5, and the placement groove 5 is used to place two carbonaceous plates 4. The two carbonaceous plates 4 are arranged to intersect and have an angle that is the same as the opening of the placement groove 5. The suspension component 2 is arranged on the upper side of the opening of the placement groove 5 and is connected to the support body 3. Specifically, the suspension component 2 can be composed of a horizontally arranged beam, a wire rope and a net bag. The beam is fixed to the support body 3 through a column to keep the beam directly above the opening of the placement groove 5. The net bag is fixed to the beam by a pull rope. The angle between the two carbonaceous plates 4 is used to place the first melt 6. The suspension component 2 is used to suspend the second melt 7 through the net bag. The melting point of the preferred net bag should be much greater than the second melt 7. The acquisition and analysis unit includes a processor 8 and at least two image collectors 9. The two image collectors 9 are respectively placed at the two ends of the horizontal furnace 1. The image collector 9 is preferably a high-speed camera, and the two image collectors 9 are located on both sides adjacent to the two carbonaceous plates 4. The two image collectors 9 are both electrically connected to the processor 8. The two image collectors 9 are used to record the angle changes of the first melt 6 and the second melt 7 on the two carbonaceous plates 4. The processor 8 is used to analyze the interactive influence of the two carbonaceous plates 4 on the wetting behavior of the first melt 6 and the second melt 7 based on the acquired angle changes.

[0027] See also Figures 1 to 4 As shown, further, in order to improve the accuracy of the experiment and facilitate the recording and analysis of the experimental process, the following specifications are made:

[0028] 1. The two carbon plates 4 are both configured as rectangular parallelepiped plates with the same size, and the two carbon plates 4 are connected end to end and are placed in the placement groove 5 perpendicularly to each other.

[0029] 2. The support body 3 is designed so that the support body 3 includes a horizontally arranged base 31 and two oppositely arranged support blocks 32. The two support blocks 32 are isosceles right-angled triangular columns with cross sections. The two support blocks 32 are respectively fixedly connected to the base 31 through a right-angled side, and the hypotenuses of the two support blocks 32 are connected end to end, so as to form a V-shaped placement groove 5 with an angle of 90 degrees on the upper side of the base 31, that is, the placement groove 5 is arranged at a right angle to the side opposite to its opening, and the two carbonaceous plates 4 are respectively arranged to fit the two right-angled sides of the placement groove 5. The two support blocks 32 are made of pure graphite material. The graphite material has high thermal conductivity, low thermal expansion coefficient, high temperature strength, high temperature oxidation resistance, good chemical stability, radiation resistance and corrosion resistance, etc. These advantages enable graphite to ensure the smooth completion of the test in metallurgy, and ensure that the temperature of the first melt 6 and the second melt 7 can be sufficiently close, so that accurate test results can be obtained. The placement groove 5 is placed at an angle of 90 degrees, which facilitates the stable support of the two carbonaceous plates 4 during the test process and simplifies the shape of the two carbonaceous plates 4 and the melt therebetween, so that the two carbonaceous plates 4 can fully contact the melt therebetween.

[0030] 3. Both sides of the horizontal furnace 1 and the image collector 9 are made of transparent materials, preferably high-temperature resistant glass, which can withstand temperatures above 1600°C. In addition, the horizontal furnace 1 needs to be filled with inert gas during the test process, such as helium (He), neon (Ne), etc. The use of inert gas can avoid the influence of the external environment and only consider the interaction between the objects under study. If the type of gas is not considered, the influence of the gas environment needs to be further considered as a participant in the final result analysis to ensure the accuracy of the analysis results.

[0031] 4. The first melt 6 and the second melt 7 are made into a cubic structure with equal side lengths before being melted at high temperature, so as to facilitate full contact with the two carbonaceous plates 4 during the test.

[0032] 5. The shooting rate of the high-speed camera is required to be up to 1000 frames per second, and the shooting temperature should be higher than 1650°C. It can realize clear video shooting of the experimental process, which is convenient for extracting the wetting angle. At the same time, both sides of the horizontal furnace 1 opposite to the high-speed camera are made of transparent materials, which is convenient for the high-speed camera to shoot outside the horizontal furnace, avoid the internal gas of the horizontal furnace 1 adhering to the lens of the high-speed camera, and ensure clear shooting.

[0033] 6. The materials of the two carbon plates 4 are graphite and coke respectively. The waist length is preferably set to 5 cm, and the overall length of the support block 32 is preferably set to 8 cm.

[0034] According to the design of the multiphase reaction wetting device mentioned above, the following two forms of tests can be carried out: First, see Figure 1 and Figure 4As shown, a multiphase cooperative wetting test of a single melt and two different carbonaceous materials, the test method includes the following steps: Two carbon plates 4 made of different materials are placed end to end in the placement groove 5 , and the angle formed by the two carbon plates 4 is opposite to the opening of the placement groove 5 .

[0035] The first melt 6 or the second melt 7 is placed between the angles of the two carbonaceous plates 4 to form a state of being in contact with the two carbonaceous plates 4 .

[0036] The interior of the horizontal furnace 1 is filled with inert gas and heated to melt the first melt 6 or the second melt 7 , which reacts and wets with the two carbonaceous plates 4 after melting.

[0037] The wetting process on both sides of the first melt 6 or the second melt 7 is recorded by a high-speed camera and uploaded to the processor 8. The processor 8 extracts the wetting angle of the first melt 6 or the second melt 7 during the wetting process through the acquired video. Figure 5 The angles represented by α and β are different from the angles between the first melt 6 or the second melt 7 and the two carbonaceous plates because the first melt 6 or the second melt 7 has a certain viscosity after melting. By analyzing the wetting angles by the processor 8, the variation law of the wetting angles between the first melt 6 or the second melt 7 and the two carbonaceous plates is obtained.

[0038] By analyzing the obtained wetting angle variation law and the first melt or second melt sample after the reaction, the wetting and dissolution conditions of the first melt 6 or the second melt 7 when they are in contact with the two carbonaceous plates 4 at the same time are analyzed.

[0039] Second, see Figure 1 and Figure 3 As shown, a multiphase cooperative wetting test of two melts and two different carbonaceous materials, the test method includes the following steps: Two carbon plates 4 made of different materials are placed end to end in the placement groove 5 , and the angle formed by the two carbon plates 4 is opposite to the opening of the placement groove 5 .

[0040] The first melt 6 is placed between the angles of the two carbonaceous plates 4 to form a state of contact with the two carbonaceous plates 4. The second melt 7 is suspended directly above the angle of the two carbonaceous plates 4 through the suspension assembly 2 so that it is located on one side of the first melt 6, and the vertical projection of the second melt 7 is tangent to the first melt 6.

[0041] The interior of the horizontal furnace 1 is filled with an inert gas and heated to melt the first melt 6 and the second melt 7. After the second melt 7 is melted, it drips between the two carbonaceous plates 4 and contacts with the solution of the first melt 6, so that the solutions of the first melt 6 and the second melt 7 contact with each other and react and wet with the two carbonaceous plates 4.

[0042] The wetting process on both sides is recorded by a high-speed camera and transmitted to the processor 8. The processor 8 extracts the wetting angles of the first melt 6 and the second melt 7 in the wetting process through the recorded video. Figure 5 The angles represented by α and β in the figure are different because the first melt 6 and the second melt 7 have a certain viscosity after melting, so the angles between them and the two carbonaceous plates are also different. The processor 8 processes and analyzes the obtained wetting angles to obtain the changing rules of the wetting angles between the first melt 6 and the second melt 7 and the two carbonaceous plates 4. It should be noted here that the method for obtaining the angle between the suspended second melt 7 dripping between the two carbonaceous plates 4 after melting is the same as the method for obtaining the wetting angle between the two carbonaceous plates 4 after the first melt 6 melts.

[0043] By using laboratory analysis methods, the first melt 6 and the second melt 7 after the reaction and the change law of the wetting angle between the first melt 6 and the second melt 7 and the two carbonaceous plates 4 are analyzed, and the melting conditions of the first melt 6, the second melt 7 and the two carbonaceous plates 4 when heated and melted simultaneously between two different carbonaceous plates 4 are analyzed.

[0044] Specifically, the experimental operation method of the multiphase synergistic wetting of slag, iron melt and graphite and coke carbonaceous materials using the above-mentioned reaction wetting device is as follows: 1. The experimental steps for multiphase synergistic wetting of either slag or iron melt in two different carbonaceous materials, graphite and coke, are as follows: (1) An iron block is prepared by melting iron powder, and then an iron block with a side length of 1 cm is prepared by cutting. A graphite plate (the first carbonaceous plate 4) with a size of 50 mm*30 mm*10 mm and a coke plate (the second carbonaceous plate 4) with a size of 50 mm*30 mm*10 mm are prepared by cutting.

[0045] (2) Place the graphite plate and the coke plate as follows: Figure 2 In the manner shown, the graphite plate and the coke plate are vertically placed in the right-angle placement groove 5 on the upper side of the graphite support 3 to ensure that the graphite plate and the coke plate are completely in contact with the two right-angle sides of the placement groove 5 .

[0046] (3) Place the iron block in Figure 2 The first solution 6 is positioned so as to be in contact with both graphite and coke.

[0047] (4) The interior of the horizontal furnace 1 is filled with inert gas and the temperature is raised to 1500° C., so that the iron block is melted and reacts with the graphite plate and the coke plate to form a wetting behavior.

[0048] (5) The wetting process on both sides is recorded by a high-speed camera and uploaded to the processor 8. The processor 8 extracts the wetting angle of the wetting process and obtains the wetting angle changes of the molten iron and graphite and the molten iron and coke, a total of 2 wetting angle changes.

[0049] (6) The samples after the reaction were analyzed by laboratory analysis methods, including scanning electron microscopy (SEM) and computed tomography (CT). The variation patterns of the extracted wetting angles were analyzed to understand the wetting and dissolution of the molten iron when it was in contact with graphite and coke at the same time.

[0050] Preferably, the iron block in the above step is replaced by a molten slag block, so that the wetting and melting conditions of the slag liquid when it contacts with graphite and coke at the same time can be analyzed.

[0051] 2. The experimental steps for multiphase cooperative wetting of two melts of slag and iron with two different carbonaceous materials, graphite and coke, are as follows: (1) An iron block is prepared by melting iron powder, and then an iron block with a side length of 1 cm is prepared by cutting. A slag block with a side length of 1 cm is prepared by briquetting. A graphite plate with a size of 50 mm*30 mm*10 mm and a coke plate with a size of 50 mm*30 mm*10 mm are prepared by cutting.

[0052] (2) Place the graphite plate and the coke plate as follows: Figure 3 In the manner shown, it is placed vertically on a graphite support 3.

[0053] (3) Place the slag between the graphite plate and the coke plate, and make contact with both the graphite plate and the coke plate (e.g. Figure 2 The iron block is suspended above the angle between the graphite plate and the coke plate, so that it is located on the side of the slag block, and the vertical projection of the iron block is tangent to the slag block (such as Figure 2 and Figure 3 The position of the second solution is shown in 7).

[0054] (4) Inert gas is filled into the interior of the horizontal furnace 1 and the temperature is raised to 1500° C. to melt the iron block and the slag block. The melted iron block drips between the graphite plate and the coke plate and contacts the molten slag, forming a state in which liquid iron and liquid slag contact each other and both the liquid iron and the liquid slag react and wet with the graphite and coke plates at the same time.

[0055] (5) The wetting process on both sides was recorded using a high-speed camera. Images were extracted every 30 seconds, and the wetting angles of the wetting process were extracted to obtain the changing trends of the wetting angles between the molten iron and slag liquid and the two carbonaceous material substrates, for a total of four wetting angle changes.

[0056] (6) The samples after the reaction were analyzed using laboratory analysis methods, including scanning electron microscopy (SEM) and computed tomography (CT). The variation patterns of the wetting angles of the extracted molten iron and slag were analyzed to understand the wetting and dissolution of the molten iron and slag when they were in contact with graphite and coke at the same time.

[0057] This example is mainly used to study the internal phenomena of a blast furnace and the reaction mechanism of the simultaneous contact between molten iron, slag, graphite-based refractory materials and coke.

[0058] In summary, the experimental method provided by the present device can study the multiphase synergistic reaction wetting process of two melts with two different carbonaceous materials, can simulate the wetting contact behavior of the slag and iron melts in contact with two different carbonaceous materials inside the blast furnace, and can observe and obtain the changes in the wetting angles of the molten iron and slag with the two types of carbonaceous materials through the image acquisition device 9. The synergistic wetting process between the slag and iron melts on the surfaces of the two carbonaceous materials can be deeply analyzed, thereby providing effective guidance for improving the air permeability and liquid permeability of the blast furnace and ensuring the stability of the blast furnace operation.

[0059] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A multiphase reaction wetting device, characterized in that: include: Horizontal furnace (1); A multiphase reaction unit is placed in the horizontal furnace (1), the multiphase reaction unit comprising a suspension component (2) and a support body (3), the support body (3) having a placement groove (5) on the top, the placement groove (5) being used to place two carbonaceous plates (4) and a first melt (6) respectively, the suspension component (2) being arranged on the upper side of the opening of the placement groove (5) and connected to the support body (3), the suspension component (2) being used to suspend a second melt (7); The acquisition and analysis unit comprises a processor (8) and at least two image collectors (9), wherein the two image collectors (9) are respectively placed at two ends of the horizontal furnace (1), and the two image collectors (9) are electrically connected to the processor (8). The two image collectors (9) are used to record the change in the wetting angle between the first melt (6) and the second melt (7) and the two carbonaceous plates (4), and the processor (8) is used to analyze the interactive influence of the wetting behavior between the two carbonaceous plates (4) and the first melt (6) and the second melt (7) based on the acquired angle change.

2. The multiphase reaction wetting device according to claim 1, characterized in that: The placement groove (5) is arranged in a V shape.

3. A multiphase reaction wetting device according to claim 2, characterized in that: The support body (3) comprises a base (31) and two support blocks (32) arranged opposite to each other, the two support blocks (32) are both columns with a cross section in the form of an isosceles right triangle, the two support blocks (32) are respectively fixedly connected to the base (31) via a right-angled side, and the hypotenuses of the two support blocks (32) are connected end to end.

4. The multiphase reaction wetting device according to claim 3, characterized in that: The support block (32) is made of a material with high thermal conductivity.

5. The multiphase reaction wetting device according to claim 1, characterized in that: The image collector (9) comprises a high-speed camera.

6. The multiphase reaction wetting device according to claim 1, characterized in that: The two sides of the horizontal furnace (1) opposite to the image collector (9) are both made of transparent material.

7. The test method of the multiphase reaction wetting device according to any one of claims 1 to 6, characterized in that: The following steps are involved: Placing two carbon plates (4) made of different materials end to end in a placement groove (5), and making the angle formed by the two carbon plates (4) face the opening of the placement groove (5); The first melt is placed between the angles of the two carbonaceous plates (4) to form a state of being in contact with the two carbonaceous plates (4); the second melt is suspended by a suspension component (2) just above the angles of the two carbonaceous plates (4) and located on one side of the first melt (6), and the vertical projection of the second melt (7) is tangent to the first melt (6); The interior of the horizontal furnace (1) is filled with an inert gas and heated, so that the first melt (6) and the second melt (7) are melted, and the second melt (7) drips between the two carbonaceous plates (7) after melting and contacts the solution of the first melt (6), and wets the two carbonaceous plates (4); The wetting process between the first melt (6) and the second melt (7) and the two carbonaceous plates (4) is recorded by an image collector (9) and uploaded to a processor (8). The processor (8) extracts the wetting angles between the first melt (6) and the second melt (7) and the two carbonaceous plates during the wetting process from the recorded video, and obtains the change pattern of the wetting angles between the first melt (6) and the second melt (7) and the two carbonaceous plates (4).

Images