Iron ladle spout contraction flow guide structure

Abstract

The utility model relates to a mouth of a ladle flow guide technology field, a mouth of a ladle contraction flow guide structure, including the iron water pouring body, the surface of iron water pouring body is fixed with a plurality of iron mouth, the inner wall of iron mouth is equipped with a plurality of flow guide grooves, in the present iron water pouring process, for effectively improving the iron water flow state, reduces the turbulence problem, and the flow guide groove is equipped in the inner wall of iron mouth, when the iron water flows, the flow guide groove can guide the iron water to rotate acceleration flow according to the specific track, makes the iron water flow more stable, significantly reduces the probability that turbulence generates, and is equipped with the support mechanism, it not only can play the firm fixed support effect to iron mouth, guarantees the iron mouth position accuracy, state stability in the pouring process, avoids the turbulence caused by the shake, and the support mechanism is convenient for quick dismounting and installation, once the iron mouth appears the abrasion, can complete the replacement quickly, in time eliminates the hidden danger that the flow is not smooth, turbulence aggravation etc. due to the iron mouth abrasion, improves the pouring quality and efficiency comprehensively.

Description

Technical Field

[0001] This utility model relates to the field of nozzle guiding technology, specifically a metal nozzle shrinkage guiding structure. Background Technology

[0002] During the molten iron pouring process, the sprue serves as a crucial channel for molten iron to flow from the ladle or tundish into the mold. Its core function is to precisely guide the molten iron to fill the mold smoothly along a predetermined path. By rationally designing the structure and dimensions of the external gating gate, direct gating gate, horizontal gating gate, and internal gating gate, the flow rate, pressure, and direction of the molten iron can be effectively controlled, achieving efficient separation of molten iron from slag and gas, reducing oxidation and inclusion defects, and ensuring the internal purity of the casting.

[0003] In the current molten iron casting process, turbulent flow of molten iron frequently occurs, seriously affecting the quality of castings. This is mainly due to two factors: First, molten iron itself is viscous, which may slow down the flow rate. During the flow, some molten iron easily adheres to the inner wall of the nozzle. As the molten iron continues to flow, the adhesion layer gradually thickens and becomes uneven, changing the original smooth flow channel shape, disrupting the stable laminar flow state of the molten iron, and thus causing turbulence. Second, the nozzle is subjected to harsh conditions of high temperature and high impact for a long time. Impurities in the molten iron and the friction generated by high-speed flow will continuously wear down the nozzle, changing the shape of its inner wall, resulting in unevenness or local deformation. This leads to disordered flow direction and uneven flow velocity distribution of the molten iron, ultimately causing turbulent flow of molten iron. Utility Model Content

[0004] The purpose of this invention is to provide a shrinkage and flow guiding structure for a metal bag nozzle to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a ladle spout contraction and guiding structure, comprising a molten iron casting body, and further comprising: a plurality of iron spouts fixed to the surface of the molten iron casting body, wherein the width of the iron spouts is 1600mm, forming a wide flow stream, wherein the inner wall of the iron spouts is provided with a plurality of guiding grooves, and the inner wall is provided with a spiral guide groove, the spiral guide groove of the inner wall being 5mm deep and having a pitch of 60mm, for guiding the molten iron and preventing turbulence, and both sides of the molten iron casting body are provided with support mechanisms for fixing the iron spouts and facilitating the replacement of the iron spouts.

[0006] Preferably, the support mechanism includes a support rod fixed to the surface of the molten iron casting body, the surface of the support rod being engaged with screws, a plurality of support columns being fixed to the surface of the iron nozzle, and a fixing groove being formed on the surface of the molten iron casting body.

[0007] Preferably, the shape of the support column matches the fixing groove and is an arc-shaped array.

[0008] Preferably, the support rod is made of a high-temperature resistant material with extremely high hardness.

[0009] Preferably, the screw has a high thread density and a relatively long length.

[0010] Preferably, the iron nozzle is made of cast steel, which has an extremely high melting point and low fluidity.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: In the current process of molten iron pouring, in order to effectively improve the flow state of molten iron and reduce turbulence problems, a guide groove is opened on the inner wall of the nozzle. When molten iron flows through, the guide groove can guide the molten iron to rotate and accelerate the flow along a specific trajectory, making the flow of molten iron more stable and significantly reducing the probability of turbulence. It is also equipped with a support mechanism, which not only provides a stable fixed support for the nozzle, ensuring that the nozzle is accurately positioned and stable during the pouring process, avoiding turbulence caused by shaking, but also facilitates quick disassembly and installation. Once the nozzle is worn, it can be quickly replaced, eliminating the hidden dangers of poor flow and increased turbulence caused by nozzle wear, and comprehensively improving the quality and efficiency of pouring. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional three-dimensional structural diagram of the present invention; Figure 3 This is a three-dimensional cross-sectional view of the other side of the present invention. Figure 4 This is a partial cross-sectional three-dimensional structural diagram of the present invention.

[0013] In the diagram: 1. Molten iron casting body; 2. Iron nozzle; 3. Guide channel; 4. Support mechanism; 41. Support rod; 42. Support column; 43. Screw; 44. Fixing groove. Detailed Implementation

[0014] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0015] Please see Figure 1-4As shown, a ladle spout contraction and guiding structure includes a molten iron casting body 1. Several spouts 2 are fixed to the surface of the molten iron casting body 1. The spouts 2 are made of cast steel, which has an extremely high melting point and low fluidity, thereby reducing wear on the spouts from the molten iron and thus reducing turbulence during casting. The spouts 2 are 1600mm wide, forming a wide flow stream. Several guiding grooves 3 are formed on the inner wall of the spouts 2, and spiral guide grooves are provided on the inner wall. The spiral guide grooves on the inner wall are 5mm deep and have a pitch of 60mm, used to guide the molten iron... To prevent turbulence, support mechanisms 4 are installed on both sides of the molten iron casting body 1. Each support mechanism 4 includes a support rod 41 fixed to the surface of the molten iron casting body 1. The support rod 41 is made of a high-temperature resistant material with extremely high hardness, ensuring that it will not be affected by high temperatures during casting, thus preventing a decrease in support strength. Screws 43 are engaged on the surface of the support rod 41. The screws 43 have a high thread density and are long. Utilizing the self-locking property of the screws 43, the wedge-shaped structure of the threads, and the synergistic effect of friction, vibration during casting is prevented from causing loosening. Several support columns 42 are fixed to the surface of the nozzle 2. Fixing grooves 44 slide on the surface of the support columns 42. The shape of the support rods 41 matches the fixing grooves 44 and is arranged in an arc array, ensuring a secure fit with the molten iron casting body 1 and stabilizing the nozzle 2. When casting is required, the worker aligns the nozzle 2 with the corresponding position and inserts the support columns 42 fixed to the surface of the nozzle 2 into the corresponding fixing grooves 44. As the position of the support columns 42 is confirmed, the support rods 41... 1 is also in the corresponding position. Then, insert screw 43 into the support rod 41 after the position has been confirmed, tighten screw 43 to complete the fixation. If it is found that the iron nozzle 2 is severely worn by molten iron, simply unscrew screw 43 to remove the iron nozzle 2 from the fixed position, and then replace the iron nozzle 2. This can ensure the stability of the iron nozzle 2 during pouring and can also quickly replace the iron nozzle 2 to prevent excessive wear from causing turbulence and wasting molten iron. It is used to fix the iron nozzle 2 and facilitate the replacement of the iron nozzle 2.

[0016] Working principle: When preparing to pour, the workers place the iron nozzle 2 in the corresponding position in advance. When the support column 42 is aligned with the corresponding fixing groove 44, the support rod 41 is also in a fixed position. The workers insert the screw 43 into the mounting hole of the support rod 41 and then tighten it to fix the iron nozzle 2. The iron nozzle 2 can be quickly replaced. When the iron nozzle 2 is severely worn, it can be quickly replaced to avoid turbulence caused by the deformation of the shape of the iron nozzle 2 due to wear of molten iron. The guide groove 3 opened on the iron nozzle 2 can guide the flow of molten iron, thereby reducing the turbulence caused by the wanton flow of molten iron, and thus reducing the splashing and waste of molten iron.

[0017] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A ladle spout contraction and guiding structure, comprising a molten iron casting body (1), characterized in that, Also includes: Several iron nozzles (2) are fixed to the surface of the molten iron casting body (1). The width of the iron nozzles (2) is 1600mm, forming a wide flow stream. Several guide grooves (3) are opened on the inner wall of the iron nozzles (2). The inner wall is provided with a spiral guide groove with a depth of 5mm and a pitch of 60mm, which is used to guide the molten iron and prevent turbulence. Support mechanisms (4) are provided on both sides of the molten iron casting body (1) for fixing the iron nozzles (2) and facilitating the replacement of the iron nozzles (2).

2. The shrinkage and flow guiding structure for an iron-filled nozzle according to claim 1, characterized in that: The support mechanism (4) includes a support rod (41) fixed to the surface of the molten iron casting body (1), a screw (43) is engaged on the surface of the support rod (41), a number of support columns (42) are fixed on the surface of the iron nozzle (2), and a fixing groove (44) is opened on the surface of the molten iron casting body (1).

3. The shrinkage and guiding structure for an iron-filled nozzle according to claim 2, characterized in that: The shape of the support column (42) matches the fixed groove (44) and is an arc-shaped array.

4. The shrinkage and flow guiding structure for an iron-filled nozzle according to claim 2, characterized in that: The support rod (41) is made of a high-temperature resistant material with extremely high hardness.

5. The shrinkage and flow guiding structure for an iron-filled nozzle according to claim 2, characterized in that: The screw (43) has a high thread density and a long length.

6. The shrinkage and flow guiding structure for an iron-filled nozzle according to claim 1, characterized in that: The iron nozzle (2) is made of cast steel, which has an extremely high melting point and low fluidity.

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