Molten iron dephosphorization device

Abstract

The utility model relates to the technical field of metal impurity removal, and provides a molten iron dephosphorizing device which comprises a cylinder body, and the cylinder body is provided with an inner cavity which is used for containing molten iron; the stirring piece is rotationally arranged in the cylinder body, the stirring piece is provided with a dephosphorization channel, and the dephosphorization channel is provided with a dephosphorization inlet and a first dephosphorization outlet; the first fan blade piece is arranged on the stirring piece, and the first dephosphorization outlet is located in one side of the first fan blade piece. According to the technical scheme, the problems that the dephosphorization efficiency is reduced, the production period is prolonged, the molten iron quality is possibly unstable, and the subsequent steel production process and the product quality are influenced under the condition of insufficient stirring of the dephosphorization agent in the prior art are solved.

Description

Technical Field

[0001] This utility model relates to the field of metal impurity removal technology, specifically to a dephosphorization device for molten iron. Background Technology

[0002] Reducing the phosphorus content in molten iron is a crucial step in improving steel quality during steel production. Currently, a common method for dephosphorizing molten iron is to add a solid powdered dephosphorizing agent and then stir it to ensure thorough mixing. However, in practice, existing stirring methods and equipment often suffer from insufficient mixing. Due to poor stirring, the dephosphorizing agent cannot be evenly dispersed in the molten iron, resulting in localized areas with excessively high or low concentrations. Areas with excessively high concentrations may waste dephosphorizing agent, increasing production costs; while areas with excessively low concentrations fail to effectively remove phosphorus, affecting the dephosphorizing effect. This insufficient mixing not only reduces dephosphorizing efficiency and prolongs the production cycle but can also lead to unstable molten iron quality, consequently impacting subsequent steel production processes and product quality. Utility Model Content

[0003] This invention proposes a dephosphorization device for molten iron, which solves the problem that insufficient mixing of the dephosphorizing agent in related technologies not only reduces dephosphorization efficiency and prolongs the production cycle, but may also lead to unstable molten iron quality, thereby affecting subsequent steel production processes and product quality.

[0004] The technical solution of this utility model is as follows:

[0005] A dephosphorization device for molten iron, used to dephosphorize molten iron by adding dephosphorizing powder, comprising:

[0006] A cylindrical body having an inner cavity for containing the molten iron;

[0007] A stirring element is rotatably disposed within the cylinder, and the stirring element has a dephosphorization channel having a dephosphorization inlet and a first dephosphorization outlet;

[0008] The first blade is disposed on the agitator, and the first dephosphorization outlet is located on one side of the first blade.

[0009] As a further technical solution, the inner cavity has an inner cavity opening, and the dephosphorization channel also has a second dephosphorization outlet, and further includes:

[0010] A main shaft is rotatably disposed within the cylinder, and the stirring element is disposed on the main shaft;

[0011] The second fan blade is disposed on the outer wall of the agitator. The first fan blade is located on one side of the inner cavity, and the second fan blade is located on the side of the first fan blade away from the inner cavity opening. The second dephosphorization outlet is located on one side of the second fan blade.

[0012] As a further technical solution, it also includes:

[0013] The first and second baffles are both disposed on the inner wall of the dephosphorization channel and rotate synchronously with the stirring element. The first and second baffles are located at the same height of the first and second fan blades, respectively. The first and second baffles divide the dephosphorization channel into a fine material chamber and a coarse material chamber. The fine material chamber leads to the first dephosphorization outlet, and the coarse material chamber leads to the second dephosphorization outlet.

[0014] As a further technical solution, it also includes:

[0015] A screening component is disposed on the top wall of the inner cavity and located inside the dephosphorization inlet. The screening component has a screening chamber, and the side wall and bottom wall of the screening chamber have a screen section and an inner passage section, respectively. The screen section connects the screening chamber and the fine material chamber, and the inner passage section connects the screening chamber and the coarse material chamber. The first stop block and the second stop block are rotatably disposed on the outer wall of the inner passage section.

[0016] As a further technical solution, the first stop block has a first communication channel and further includes:

[0017] A first conical material blocking component is disposed on the inner passage section. A first storage cavity is formed between the outer wall of the first conical material blocking component, the inner wall of the dephosphorization channel, and the outer wall of the screening component. The first conical material blocking component has a first notch. The first stop is configured such that after the stirring component drives the first stop to rotate, the first connecting channel aligns with the first notch to connect the first storage cavity and the first dephosphorization outlet, or the alignment is canceled and the connection is canceled.

[0018] As a further technical solution, the second stop has a second communication channel and further includes:

[0019] The second conical material blocking component is disposed on the inner passage section and located on the side of the first conical material blocking component away from the inner cavity opening. A second storage cavity is formed between the bottom of the inner passage section, the inner wall of the dephosphorization channel and the outer wall of the screening component. The second conical material blocking component has a second notch. The second stop is configured such that after the stirring component drives the second stop to rotate, the second connecting channel aligns with the second notch to connect the second storage cavity and the second dephosphorization outlet, or the alignment is canceled and the connection is canceled.

[0020] As a further technical solution, the first fan blade is inclined downwards, and the second fan blade is inclined upwards.

[0021] As a further technical solution, it also includes:

[0022] The third blade is disposed on the outer wall of the stirring component, and the first blade and the second blade are respectively located on both sides of the third blade.

[0023] As a further technical solution, the third fan blade has a flow port.

[0024] As a further technical solution, the first fan blade, the second fan blade, and the third fan blade are all multiple in the rotation direction and are arranged circumferentially on the outer wall of the stirring component.

[0025] The working principle and beneficial effects of this utility model are as follows:

[0026] In this invention, molten iron is poured into a cylinder. A stirring element, driven by a power source, begins to rotate, and dephosphorizing powder enters the dephosphorizing channel from the dephosphorizing inlet. During the rotation of the stirring element, the first fan blade rotates accordingly, agitating the molten iron. When the dephosphorizing powder exits from the first dephosphorizing outlet, the agitation of the first fan blade ensures that the powder is rapidly and evenly dispersed in the molten iron. The cooperation between the stirring element and the first fan blade ensures that the dephosphorizing powder is fully dispersed in the molten iron, improving the speed and efficiency of the dephosphorizing reaction. This ensures that all parts of the molten iron are in full contact with the dephosphorizing powder, achieving uniform dephosphorization and improving the stability of the molten iron quality. It improves upon the problem of insufficient stirring in traditional methods, simplifies the dephosphorizing process, and reduces production costs. By controlling the rotation speed of the stirring element and the addition rate of the dephosphorizing powder, the dephosphorizing process can be precisely controlled. Attached Figure Description

[0027] The preferred embodiments will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0028] Figure 1 This is a schematic diagram of the structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0030] Figure 3 This is another schematic diagram of the internal structure of this utility model;

[0031] Figure 4 for Figure 2 A schematic diagram of a partial structure of part A in the middle.

[0032] In the diagram: Cylinder-1, Inner cavity-101, Inner cavity opening-102, Stirring component-2, Dephosphorization channel-201, Dephosphorization inlet-202, First dephosphorization outlet-203, Second dephosphorization outlet-204, Fine material cavity-205, Coarse material cavity-206, First fan blade component-3, Main shaft-4, Second fan blade component-5, First baffle-6, First connecting channel-601, Second baffle-7, Second connecting channel-701, Screening component-8, Screening cavity-801, Screen section-802, Inner passage section-803, First storage cavity-804, Second storage cavity-805, First conical material blocking component-9, First notch-901, Second conical material blocking component-10, Second notch-1001, Third fan blade component-11, Flow port-1101. Detailed Implementation

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0034] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0035] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0036] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] Reference Figures 1-4 An embodiment of this utility model proposes a dephosphorization device for molten iron, which is used to dephosphorize molten iron by adding dephosphorization powder. The device includes a cylinder 1 with an inner cavity 101 for containing molten iron; a stirring member 2 is rotatably disposed inside the cylinder 1 and has a dephosphorization channel 201 with a dephosphorization inlet 202 and a first dephosphorization outlet 203; a first fan blade 3 is disposed on the stirring member 2 and the first dephosphorization outlet 203 is located on one side of the first fan blade 3.

[0038] In this embodiment, molten iron is poured into cylinder 1. The agitator 2 rotates under power, and dephosphorizing powder enters the dephosphorizing channel 201 from the dephosphorizing inlet 202. During the rotation of the agitator 2, the first fan blade 3 rotates accordingly, agitating the molten iron. When the dephosphorizing powder is discharged from the first dephosphorizing outlet 203, the agitation of the first fan blade 3 ensures that the dephosphorizing powder is quickly and evenly dispersed in the molten iron. The cooperation between the agitator 2 and the first fan blade 3 ensures that the dephosphorizing powder is fully dispersed in the molten iron, improving the speed and efficiency of the dephosphorizing reaction. This ensures that all parts of the molten iron are in full contact with the dephosphorizing powder, achieving uniform dephosphorization and improving the stability of the molten iron quality. This improves upon the problem of insufficient stirring in traditional methods, simplifies the dephosphorizing process, and reduces production costs. By controlling the rotation speed of the agitator 2 and the addition speed of the dephosphorizing powder, the dephosphorizing process can be precisely controlled.

[0039] Furthermore, the inner cavity 101 has an inner cavity opening 102, the dephosphorization channel 201 also has a second dephosphorization outlet 204, and also includes a main shaft 4 rotatably disposed inside the cylinder 1, and a stirring component 2 disposed on the main shaft 4; a second fan blade 5 is disposed on the outer wall of the stirring component 2, the first fan blade 3 is located on one side of the inner cavity 101, the second fan blade 5 is located on the side of the first fan blade 3 away from the inner cavity opening 102, and the second dephosphorization outlet 204 is located on one side of the second fan blade 5.

[0040] In this embodiment, the second fan blade 5 agitates on the side away from the inner cavity opening 102, ensuring that the dephosphorizing powder discharged from the second dephosphorizing outlet 204 is fully mixed with the molten iron. The combined effect of the first fan blade 3 and the second fan blade 5 greatly improves the stirring effect, allowing the dephosphorizing powder to come into more thorough contact with the molten iron and significantly improving the dephosphorizing efficiency. This ensures that all parts of the molten iron are fully stirred, avoiding dead zones and achieving a more uniform dephosphorizing process. Precise control of the dephosphorizing process can be achieved by adjusting the spindle speed 4 and the discharge rate of dephosphorizing powder at different outlets. This effectively reduces the problem of unstable dephosphorizing effect caused by uneven stirring, ensuring the stability of molten iron quality.

[0041] Furthermore, it also includes a first baffle 6 and a second baffle 7. The first baffle 6 and the second baffle 7 are both set on the inner wall of the dephosphorization channel 201 and rotate synchronously with the stirring member 2. The first baffle 6 and the second baffle 7 are located at the same height as the first fan blade member 3 and the second fan blade member 5, respectively. The first baffle 6 and the second baffle 7 divide the dephosphorization channel 201 into a fine material chamber 205 and a coarse material chamber 206. The fine material chamber 205 leads to the first dephosphorization outlet 203, and the coarse material chamber 206 leads to the second dephosphorization outlet 204.

[0042] In this embodiment, during the dephosphorization operation of molten iron, the agitator 2 rotates under the drive of the main shaft 4. Dephosphorizing powders of different particle sizes enter the fine material chamber 205 and the coarse material chamber 206 respectively. The finer dephosphorizing powder in the fine material chamber 205 is discharged from the first dephosphorization outlet 203 into the upper layer of molten iron when it rotates to the position of the first fan blade 3; the coarser dephosphorizing powder in the coarse material chamber 206 is discharged from the second dephosphorization outlet 204 into the lower layer of molten iron when it rotates to the position of the second fan blade 5. The dephosphorization channel 201 is separated by the first baffle 6 and the second baffle 7, achieving precise delivery of dephosphorizing powders of different particle sizes and improving the utilization efficiency of the dephosphorizing agent. This allows the finer dephosphorizing powder to act on the upper layer of molten iron, and the coarser dephosphorizing powder to act on the lower layer of molten iron, enhancing the targeting and effectiveness of dephosphorization.

[0043] Furthermore, it also includes a screening component 8 disposed on the top wall of the inner cavity 101, located inside the dephosphorization inlet 202. The screening component 8 has a screening cavity 801. The side wall and bottom wall of the screening cavity 801 respectively have a screen section 802 and an inner passage section 803. The screen section 802 connects the screening cavity 801 and the fine material cavity 205. The inner passage section 803 connects the screening cavity 801 and the coarse material cavity 206. The first stop block 6 and the second stop block 7 are rotatably disposed on the outer wall of the inner passage section 803.

[0044] In this embodiment, during the dephosphorization process, the added dephosphorizing powder first enters the screening chamber 801 of the screening component 8. The finer dephosphorizing powder enters the fine material chamber 205 through the screen section 802, while the coarser dephosphorizing powder enters the coarse material chamber 206 through the inner passage section 803. As the stirring component 2 rotates, the first baffle 6 and the second baffle 7 rotate accordingly. The dephosphorizing powder in the fine material chamber 205 is discharged from the first dephosphorization outlet 203 to the upper layer of molten iron, and the dephosphorizing powder in the coarse material chamber 206 is discharged from the second dephosphorization outlet 204 to the lower layer of molten iron. The screening component 8 can automatically complete particle size screening before the dephosphorizing powder enters the dephosphorization channel 201, reducing the steps and costs of manual screening. This ensures that the particle size of the dephosphorizing powder entering the fine material chamber 205 and the coarse material chamber 206 meets the requirements, improving the accuracy and effectiveness of the dephosphorizing powder delivery. Uninterrupted screening and delivery are achieved, contributing to improved efficiency and continuity of the entire dephosphorization process. This makes the dephosphorization unit more stable and reliable in operation, and reduces fluctuations in dephosphorization effect caused by uneven particle size of dephosphorization powder.

[0045] Furthermore, the first stop block 6 has a first connecting channel 601 and also includes a first conical material blocking member 9 disposed on the inner passage section 803. A first storage cavity 804 is formed between the outer wall of the first conical material blocking member 9, the inner wall of the dephosphorization channel 201 and the outer wall of the screening member 8. The first conical material blocking member 9 has a first notch 901. The first stop block 6 is configured such that after the stirring member 2 drives the first stop block 6 to rotate, the first connecting channel 601 and the first notch 901 are aligned to connect the first storage cavity 804 and the first dephosphorization outlet 203, or the alignment is canceled and the connection is canceled.

[0046] In this embodiment, when the stirring component 2 rotates, it drives the first baffle 6 to rotate. Under normal conditions, the first connecting channel 601 and the first notch 901 are not aligned, preventing molten iron from entering the fine material chamber 205. When the first connecting channel 601 and the first notch 901 are aligned, the dephosphorizing powder in the fine material chamber 205 can be discharged from the first dephosphorizing outlet 203 into the upper layer of molten iron through the first connecting channel 601. The cooperation of the first conical material blocking component 9 and the first baffle 6 can effectively prevent molten iron from entering the dephosphorizing channel 201, avoiding molten iron backflow and blockage. This ensures that the dephosphorizing powder in the fine material chamber 205 can only be discharged at the appropriate time, achieving precise control. This reduces malfunctions and instabilities caused by molten iron entering the dephosphorizing channel 201, ensuring the stable operation of the device. It also avoids unnecessary material mixing and interference, improving the discharge efficiency of the dephosphorizing powder and the dephosphorizing effect.

[0047] Furthermore, the second stop 7 has a second connecting channel 701 and also includes a first conical material blocking member 9 disposed on the inner passage section 803 and located on the side of the first conical material blocking member 9 away from the inner cavity opening 102. A second storage cavity 805 is formed between the bottom of the inner passage section 803, the inner wall of the dephosphorization channel 201 and the outer wall of the screening member 8. The second conical material blocking member 10 has a second notch 1001. The second stop 7 is configured such that after the stirring member 2 drives the second stop 7 to rotate, the second connecting channel 701 and the second notch 1001 are aligned to connect the second storage cavity 805 and the second dephosphorization outlet 204, or the alignment is canceled and the connection is canceled.

[0048] In this embodiment, when the stirring component 2 rotates, it drives the first baffle 6 to rotate. Under normal conditions, the first connecting channel 601 and the first notch 901 are not aligned, preventing molten iron from entering the fine material chamber 205. When the first connecting channel 601 and the first notch 901 are aligned, the dephosphorizing powder in the fine material chamber 205 can be discharged from the first dephosphorizing outlet 203 into the upper layer of molten iron through the first connecting channel 601. The cooperation of the first conical material blocking component 9 and the first baffle 6 can effectively prevent molten iron from entering the dephosphorizing channel 201, avoiding molten iron backflow and blockage. This ensures that the dephosphorizing powder in the fine material chamber 205 can only be discharged at the appropriate time, achieving precise control. This reduces malfunctions and instabilities caused by molten iron entering the dephosphorizing channel 201, ensuring the stable operation of the device. It also avoids unnecessary material mixing and interference, improving the discharge efficiency of the dephosphorizing powder and the dephosphorizing effect.

[0049] Furthermore, the first blade 3 is tilted downwards, and the second blade 5 is tilted upwards.

[0050] In this embodiment, during the dephosphorization process of molten iron, the main shaft 4 drives the stirring component 2 to rotate. Because the first fan blade 3 is tilted downwards, its rotation pushes the upper layer of molten iron and fine dephosphorizing powder downwards, promoting mixing between the fine powder and the upper layer of molten iron. The second fan blade 5 is tilted upwards, which can lift the bottom layer of molten iron and coarse dephosphorizing powder to the middle section, achieving continuous tumbling and mixing of the bottom coarse material in the lower middle section. By using fan blades with different tilt directions, the mixing of the upper and lower layers of molten iron is optimized, improving the dephosphorization effect. The upper layer uses fine powder mixing, while the bottom coarse material is lifted to the middle section for mixing, accelerating the overall dephosphorization speed. This more targeted stirring method reduces unnecessary energy consumption and improves production efficiency. It ensures that the molten iron is fully and appropriately stirred at different locations, guaranteeing the uniformity of dephosphorization.

[0051] Furthermore, it also includes a third blade 11 disposed on the outer wall of the agitator 2, and the first blade 3 and the second blade 5 are respectively located on both sides of the third blade 11.

[0052] In this embodiment, during the dephosphorization process of molten iron, the main shaft 4 drives the stirring component 2 to rotate. The first fan blade 3 pushes the upper layer of molten iron and fine dephosphorizing powder downwards, the second fan blade 5 rolls the bottom layer of molten iron and coarse dephosphorizing powder to the middle section, and the third fan blade 11 located in the middle further enhances the stirring and mixing effect on the molten iron in the middle section. The addition of the third fan blade 11 enhances the stirring degree of the molten iron in the middle section, making the molten iron in the entire inner cavity 101 more uniformly mixed. This ensures that the molten iron can be fully and uniformly stirred at different height positions, further improving the uniformity and effect of dephosphorization. It helps the dephosphorizing agent to fully contact the molten iron, accelerates the dephosphorization reaction process, and improves production efficiency. Furthermore, the third fan blade 11 has a flow port 1101.

[0053] In this embodiment, during the dephosphorization process of molten iron, the main shaft 4 drives the stirring component 2 to rotate. The first fan blade 3 pushes the upper layer of molten iron and fine dephosphorizing powder downwards, while the second fan blade 5 rolls up the bottom layer of molten iron and coarse dephosphorizing powder to the middle section. When the third fan blade 11 stirs the molten iron in the middle section, the molten iron can flow through the flow port 1101, reducing resistance while promoting the exchange and mixing of molten iron. The design of the flow port 1101 reduces the resistance encountered by the third fan blade 11 during stirring, saving energy. It facilitates the flow and exchange of molten iron in the middle section, allowing the dephosphorizing agent to be distributed more evenly. This further enhances the mixing effect of the molten iron in the middle section, improving dephosphorization efficiency and quality.

[0054] Furthermore, there are several of the first blade 3, the second blade 5, and the third blade 11 in the direction of rotation, arranged circumferentially on the outer wall of the stirring component 2.

[0055] In this embodiment, during the dephosphorization process of molten iron, the main shaft 4 drives the stirring component 2 to rotate. Multiple first fan blades 3 work together to push the upper layer of molten iron and fine dephosphorization powder downwards more fully; multiple second fan blades 5 work together to roll the bottom layer of molten iron and coarse dephosphorization powder to the middle section; multiple third fan blades 11 further enhance the stirring, mixing and exchange of molten iron in the middle section.

[0056] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A dephosphorization device for molten iron, used to dephosphorize molten iron by adding dephosphorizing powder, characterized in that, include: A cylindrical body (1) having an inner cavity (101) for containing the molten iron; A stirring element (2) is rotatably disposed inside the cylinder (1). The stirring element (2) has a dephosphorization channel (201), which has a dephosphorization inlet (202) and a first dephosphorization outlet (203). The first fan blade (3) is disposed on the stirring element (2), and the first dephosphorization outlet (203) is located on one side of the first fan blade (3).

2. The iron dephosphorization device according to claim 1, characterized in that, The inner cavity (101) has an inner cavity opening (102), and the dephosphorization channel (201) also has a second dephosphorization outlet (204), and further includes: The main shaft (4) is rotatably disposed inside the cylinder (1), and the stirring element (2) is disposed on the main shaft (4); The second fan blade (5) is disposed on the outer wall of the stirring component (2). The first fan blade (3) is located on one side of the inner cavity (101). The second fan blade (5) is located on the side of the first fan blade (3) away from the inner cavity opening (102). The second dephosphorization outlet (204) is located on one side of the second fan blade (5).

3. The iron dephosphorization device according to claim 2, characterized in that, Also includes: The first baffle (6) and the second baffle (7) are both disposed on the inner wall of the dephosphorization channel (201) and rotate synchronously with the stirring component (2). The first baffle (6) and the second baffle (7) are located at the same height of the first fan blade (3) and the second fan blade (5), respectively. The first baffle (6) and the second baffle (7) divide the dephosphorization channel (201) into a fine material chamber (205) and a coarse material chamber (206). The fine material chamber (205) leads to the first dephosphorization outlet (203), and the coarse material chamber (206) leads to the second dephosphorization outlet (204).

4. The iron dephosphorization device according to claim 3, characterized in that, Also includes: Screening component (8) is disposed on the top wall of the inner cavity (101) and located inside the dephosphorization inlet (202). The screening component (8) has a screening chamber (801). The side wall and bottom wall of the screening chamber (801) have a screen part (802) and an inner passage section (803) respectively. The screen part (802) connects the screening chamber (801) and the fine material chamber (205). The inner passage section (803) connects the screening chamber (801) and the coarse material chamber (206). The first stop block (6) and the second stop block (7) are rotatably disposed on the outer wall of the inner passage section (803).

5. The iron dephosphorization device according to claim 4, characterized in that, The first stop (6) has a first connecting channel (601) and further includes: The first conical material blocking element (9) is disposed on the inner passage section (803). A first storage cavity (804) is formed between the outer wall of the first conical material blocking element (9), the inner wall of the dephosphorization channel (201), and the outer wall of the screening element (8). The first conical material blocking element (9) has a first notch (901). The first stop (6) is configured such that after the stirring element (2) drives the first stop (6) to rotate, the first connecting channel (601) aligns with the first notch (901) to connect the first storage cavity (804) and the first dephosphorization outlet (203), or the alignment is canceled and the connection is canceled.

6. The iron dephosphorization device according to claim 5, characterized in that, The second stop (7) has a second communication channel (701) and further includes: The second conical material blocking component (10) is provided on the inner passage section (803) and located on the side of the first conical material blocking component (9) away from the inner cavity opening (102). A second storage cavity (805) is formed between the bottom of the inner passage section (803), the inner wall of the dephosphorization channel (201) and the outer wall of the screening component (8). The second conical material blocking component (10) has a second notch (1001). The second stop (7) is configured such that after the stirring component (2) drives the second stop (7) to rotate, the second connecting channel (701) and the second notch (1001) are aligned and connected to the second storage cavity (805) and the second dephosphorization outlet (204), or the alignment is canceled and the connection is canceled.

7. The iron dephosphorization device according to claim 2, characterized in that, The first fan blade (3) is tilted downwards, and the second fan blade (5) is tilted upwards.

8. The iron dephosphorization device according to claim 2, characterized in that, Also includes: The third blade (11) is disposed on the outer wall of the stirring component (2), and the first blade (3) and the second blade (5) are respectively located on both sides of the third blade (11).

9. A dephosphorization device for molten iron according to claim 8, characterized in that, The third fan blade (11) has a flow port (1101).

10. A dephosphorization device for molten iron according to claim 8, characterized in that, The first fan blade (3), the second fan blade (5) and the third fan blade (11) are all in multiples in the rotation direction and are arranged circumferentially on the outer wall of the stirring component (2).

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