Flocculation-preventing submersed nozzle

Abstract

The utility model provides an anti-flocculation submersed nozzle, and relates to the technical field of submersed nozzles. The bottom of the flow guide upper water gap is connected with a flow guide lower water gap; the flow guide lower water gap is communicated with the flow guide upper water gap; two limiting blocks are connected into the bottom of the upper flow guide water opening and connected with the lower flow guide water opening. And a movable outer sleeve is sleeved outside the flow guide water feeding opening and is connected with a limiting block. Through the arrangement of the annular protrusion A and the annular protrusion B, when molten steel passes through the interior of the flow guide upper nozzle and the interior of the flow guide lower nozzle, the molten steel touches the annular protrusion A and the annular protrusion B, so that original stable steel flow in a laminar flow state is damaged, a plurality of turbulent flow areas are formed, and therefore inclusions in the molten steel are prevented from moving towards an inner cavity of the submersed nozzle and being bonded; and the flow guide lower nozzle connected with the bottom of the flow guide upper nozzle is adjusted up and down according to different lengths of the submersed nozzles, so that the use requirements are better met.

Description

Technical Field

[0001] The utility model relates to the technical field of immersed nozzles, in particular to an anti-flocculation immersed nozzle. Background Art

[0002] In continuous casting technology, in order to improve the quality of the ingot, an immersed nozzle is provided between the tundish and the crystallizer. Its main functions are: to prevent the secondary oxidation and nitridation of the molten steel and the splashing of the molten steel; to adjust the flow state of the molten steel and stabilize the flow field of the crystallizer; to prevent the crystallizer protection slag from being drawn into the molten steel, which plays an important role in promoting the floating of inclusions in the molten steel.

[0003] During the application of existing submerged nozzles, flocculent blockage may easily occur due to the inability to achieve stable control of the inclusion content. In addition, submerged nozzles generally adopt an integrated design with a fixed length, which cannot be adjusted according to actual use requirements. Therefore, they need to be specially customized according to the required length, which has limitations. Utility Model Content

[0004] The disclosed embodiment relates to an anti-flocculation immersed water inlet, which solves the problem that the existing immersed water inlet is prone to flocculation blockage during use due to the inability to achieve stable control of the inclusion content. In addition, immersed water inlets generally adopt an integrated design with a fixed length, which cannot be telescopically adjusted according to actual use requirements. Therefore, it needs to be specially customized according to the required length, which has limitations.

[0005] In a first aspect of the present disclosure, an anti-flocculation immersed water inlet is provided, which specifically includes: a diversion upper water inlet; a diversion lower water inlet is connected to the bottom of the diversion upper water inlet, and the diversion lower water inlet is communicated with the diversion upper water inlet; two limit blocks are connected to the bottom of the diversion upper water inlet, and the limit blocks are connected to the diversion lower water inlet; a movable outer cover is provided on the outside of the diversion upper water inlet, and the movable outer cover is connected to the limit blocks.

[0006] In at least some embodiments, an annular protrusion A is provided on the inner side of the guide upper water inlet, and an annular protrusion B is provided on the inner side of the guide lower water inlet. When the molten steel passes through the guide upper water inlet and the guide lower water inlet, the molten steel hits the annular protrusion A and the annular protrusion B, thereby destroying the original stable laminar state of the steel flow, forming multiple turbulent zones, and reducing the probability of flocculation.

[0007] In at least some embodiments, the top of the diversion lower water outlet is slidably connected to the bottom of the diversion upper water outlet, an inner convex strip is provided on the inner side of the diversion upper water outlet, an outer groove is provided on the outer side of the diversion lower water outlet, and the inner convex strip provided on the diversion upper water outlet is slidably connected to the outer groove provided on the diversion lower water outlet.

[0008] In at least some embodiments, positioning outer holes are provided on both sides of the bottom of the diversion upper water inlet, and positioning inner grooves are arranged on both sides of the diversion lower water inlet, and the positioning inner grooves of the diversion lower water inlet are inside the positioning outer holes of the diversion upper water inlet.

[0009] In at least some embodiments, the limit block is located in the connected outer positioning hole and inner positioning groove, and the length of the limit block is the sum of the depths of the outer positioning hole and the inner positioning groove. The diversion lower water outlet connected to the bottom of the diversion upper water outlet can be adjusted up and down according to the required length of the immersion water outlet, thereby changing the length of the immersion water outlet to better meet the requirements of use.

[0010] In at least some embodiments, the movable outer sleeve is slidably connected to the outer side of the diversion upper water inlet, the inner side of the movable outer sleeve is in contact with two limit blocks, and the bottom of the movable outer sleeve is in contact with the diversion upper water inlet.

[0011] In at least some embodiments, a spring is mounted on the outside of the diversion water outlet, the bottom of the spring contacts the top of the movable sleeve, and the top of the spring contacts the diversion water outlet. When the limit block is inserted into the positioning outer hole and the positioning inner groove, the movable sleeve moves downward under the influence of the spring thrust, so that the inner side of the movable sleeve contacts the two limit blocks, thereby fixing the limit blocks.

[0012] The utility model provides an anti-flocculation immersed water outlet, which has the following beneficial effects:

[0013] When the utility model is in use, through the arrangement of the annular protrusion A and the annular protrusion B, when the molten steel passes through the interior of the guide upper water inlet and the guide lower water inlet, the molten steel hits the annular protrusion A and the annular protrusion B, thereby destroying the original stable laminar flow state of the steel flow and forming a plurality of turbulent flow zones, thereby hindering the movement of inclusions in the molten steel to the inner cavity of the immersion water inlet and the adhesion, and reducing the probability of flocculation.

[0014] In addition, the diversion drain outlet connected to the bottom of the diversion upper water outlet can be adjusted up and down according to the different required lengths of the immersed water outlet, so as to change the length of the immersed water outlet and better meet the use requirements. After the diversion drain outlet is adjusted, the positioning outer hole and the positioning inner groove are in a connected state, and the limit block is inserted into the positioning outer hole and the positioning inner groove, so as to fix the diversion drain outlet through the limit block. When the limit block is inserted into the positioning outer hole and the positioning inner groove, the movable outer sleeve moves downward under the influence of the spring thrust, so that the inner side of the movable outer sleeve contacts the two limit blocks, so as to fix the limit block and prevent the limit block from falling out of the positioning outer hole and the positioning inner groove, thereby ensuring the firmness of the connection between the diversion drain outlet and the diversion upper water outlet, thereby ensuring the stability of the immersed water outlet during use.

[0015] Other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0017] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0018] In the attached picture:

[0019] Figure 1 The overall axial structure schematic diagram of the anti-flocculation immersed nozzle of the present application is shown;

[0020] Figure 2 The overall cross-sectional structure schematic diagram of the anti-flocculation immersed nozzle of the present application is shown;

[0021] Figure 3 A schematic diagram showing the split structure of the limit block, the upper diversion water inlet and the lower diversion water inlet of the anti-flocculation immersion water inlet of the present application is shown;

[0022] Figure 4 A schematic diagram of the bottom axial side structure of the diversion upper nozzle of the anti-flocculation immersed nozzle of the present application is shown;

[0023] Figure 5 A schematic diagram of the axial structure of the movable outer sleeve of the anti-flocculation immersed nozzle of the present application is shown.

[0024] Reference numerals list

[0025] 1. Diversion water inlet; 101. Annular protrusion A; 102. Inner convex strip; 103. Positioning outer hole; 2. Diversion water outlet; 201. Annular protrusion B; 202. Outer groove; 203. Positioning inner groove; 3. Limit block; 4. Movable outer sleeve; 5. Spring. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Example 1: Please refer to Figures 1 to 5 :

[0028] The utility model proposes an anti-flocculation immersion nozzle, comprising: a diversion upper nozzle 1; a diversion lower nozzle 2 is connected to the bottom of the diversion upper nozzle 1, and the diversion lower nozzle 2 is connected to the diversion upper nozzle 1; two limit blocks 3 are connected to the bottom of the diversion upper nozzle 1, and the limit blocks 3 are connected to the diversion lower nozzle 2; a movable jacket 4 is sleeved on the outside of the diversion upper nozzle 1, and the movable jacket 4 is connected to the limit blocks 3; an annular protrusion A101 is provided on the inner side of the diversion upper nozzle 1, An annular protrusion B201 is provided on the inner side of the diversion water inlet 2. Through the arrangement of the annular protrusion A101 and the annular protrusion B201, when the molten steel passes through the diversion water inlet 1 and the diversion water inlet 2, the molten steel hits the annular protrusion A101 and the annular protrusion B201, thereby destroying the original stable laminar state of the steel flow and forming multiple turbulent zones, thereby hindering the movement and adhesion of inclusions in the molten steel to the inner cavity of the submerged water inlet, and reducing the probability of flocculation.

[0029] In the embodiment of the present disclosure, the top of the diversion water outlet 2 is slidably connected to the bottom of the diversion water outlet 1, the inner side of the diversion water outlet 1 is provided with an inner convex strip 102, and the outer side of the diversion water outlet 2 is provided with an outer groove 202. The inner convex strip 102 provided on the diversion water outlet 1 is slidably connected to the outer groove 202 provided on the diversion water outlet 2. Positioning outer holes 103 are provided on both sides of the bottom of the diversion water outlet 1. Positioning inner grooves 203 are arranged on both sides of the diversion water outlet 2. The positioning inner grooves 203 provided on the diversion water outlet 2 and the positioning outer holes 103 provided on the diversion water outlet 1 are connected. The limit block 3 is located in the connected positioning The length of the limit block 3 is the sum of the depths of the positioning outer hole 103 and the positioning inner groove 203; by adopting the above technical scheme, the diversion lower water outlet 2 connected to the bottom of the diversion upper water outlet 1 can be adjusted up and down according to the different required lengths of the immersion water outlet, so as to change the length of the immersion water outlet to better meet the requirements of use, and after the adjustment of the diversion lower water outlet 2 is completed, the positioning outer hole 103 and the positioning inner groove 203 are in a connected state, and the limit block 3 is inserted into the positioning outer hole 103 and the positioning inner groove 203, so as to fix the diversion lower water outlet 2 through the limit block 3.

[0030] Embodiment 2, on the basis of embodiment 1, the movable jacket 4 is slidably connected to the outer side of the diversion upper water inlet 1, the inner side of the movable jacket 4 contacts with two limit blocks 3, the bottom of the movable jacket 4 contacts with the diversion upper water inlet 1, and a spring 5 is mounted on the outside of the diversion upper water inlet 1, the bottom of the spring 5 contacts with the top of the movable jacket 4, and the top of the spring 5 contacts with the diversion upper water inlet 1; adopting the above technical scheme, when the limit block 3 is inserted into the positioning outer hole 103 and the positioning inner groove 203, the movable jacket 4 moves downward under the thrust of the spring 5, so that the inner side of the movable jacket 4 contacts with the two limit blocks 3, which has the effect of fixing the limit blocks 3, preventing the limit blocks 3 from falling out of the positioning outer hole 103 and the positioning inner groove 203, ensuring the firmness of the connection between the diversion lower water inlet 2 and the diversion upper water inlet 1, thereby ensuring the stability of the immersion water inlet during use.

[0031] The working principle of this embodiment is as follows: first, according to the different lengths of the required immersion nozzles, the diversion nozzle 2 connected to the bottom of the diversion nozzle 1 is adjusted up and down to change the length of the immersion nozzle to better meet the use requirements. After the diversion nozzle 2 is adjusted, the positioning outer hole 103 and the positioning inner groove 203 are in a connected state, the movable outer sleeve 4 is moved upward to leak the positioning outer hole 103, the spring 5 is in a contracted state, and the limit block 3 is inserted into the positioning outer hole 103 and the positioning inner groove 203; when the limit block 3 is inserted into the positioning outer hole 103 and the positioning inner groove 203, the movable outer sleeve 4 is affected by the thrust of the spring 5 to move downward Move so that the inner side of the movable sleeve 4 contacts with the two limit blocks 3, which has the effect of fixing the limit blocks 3 and preventing the limit blocks 3 from falling out of the positioning outer hole 103 and the positioning inner groove 203, thereby ensuring the firmness of the connection between the guide lower water inlet 2 and the guide upper water inlet 1, thereby ensuring the stability of the immersion water inlet during use; when the molten steel passes through the guide upper water inlet 1 and the guide lower water inlet 2, the molten steel hits the annular protrusion A101 and the annular protrusion B201, thereby destroying the original stable laminar state of the steel flow and forming multiple turbulent zones, thereby hindering the inclusions in the molten steel from moving into the inner cavity of the immersion water inlet and bonding, and reducing the probability of flocculation.

[0032] In this article, there are a few points to note:

[0033] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0034] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0035] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. An anti-flocculation immersed nozzle, characterized in that: include: A diversion upper water inlet (1); the bottom of the diversion upper water inlet (1) is connected to a diversion lower water inlet (2), and the diversion lower water inlet (2) is in communication with the diversion upper water inlet (1); two limit blocks (3) are connected to the bottom of the diversion upper water inlet (1), and the limit blocks (3) are connected to the diversion lower water inlet (2); the outside of the diversion upper water inlet (1) is covered with a movable outer cover (4), and the movable outer cover (4) is connected to the limit blocks (3).

2. The anti-flocculation submerged nozzle according to claim 1, characterized in that: An annular protrusion A (101) is provided on the inner side of the diversion upper water inlet (1), and an annular protrusion B (201) is provided on the inner side of the diversion lower water inlet (2).

3. The anti-flocculation submerged nozzle according to claim 1, characterized in that: The top of the diversion lower water inlet (2) is slidably connected to the bottom of the diversion upper water inlet (1); an inner convex strip (102) is provided on the inner side of the diversion upper water inlet (1); an outer concave groove (202) is provided on the outer side of the diversion lower water inlet (2); the inner convex strip (102) provided on the diversion upper water inlet (1) is slidably connected to the outer concave groove (202) provided on the diversion lower water inlet (2).

4. The anti-flocculation submerged nozzle according to claim 1, characterized in that: The bottom of the diversion upper water inlet (1) is provided with positioning outer holes (103) on both sides, and the diversion lower water inlet (2) is provided with positioning inner grooves (203) in an array on both sides, and the positioning inner grooves (203) provided on the diversion lower water inlet (2) and the positioning outer holes (103) provided on the diversion upper water inlet (1) are arranged inside.

5. The anti-flocculation submerged nozzle according to claim 4, characterized in that: The limiting block (3) is located in the connected positioning outer hole (103) and positioning inner groove (203), and the length of the limiting block (3) is the sum of the depths of the positioning outer hole (103) and the positioning inner groove (203).

6. The anti-flocculation submerged nozzle according to claim 1, characterized in that: The movable outer sleeve (4) is slidably connected to the outside of the diversion upper water inlet (1), the inside of the movable outer sleeve (4) is in contact with the two limit blocks (3), and the bottom of the movable outer sleeve (4) is in contact with the diversion upper water inlet (1).

7. The anti-flocculation submerged nozzle according to claim 1, characterized in that: The diversion upper water inlet (1) is externally sleeved with a spring (5), the bottom of the spring (5) is in contact with the top of the movable outer sleeve (4), and the top of the spring (5) is in contact with the diversion upper water inlet (1).

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