A thin strip continuous casting core nozzle with gradient structure

Abstract

The utility model relates to thin strip continuous casting core water gap technical field provides a thin strip continuous casting core water gap with gradient structure, including core water gap main part and flow guide groove, the inside of core water gap main part is set up with flow guide groove, the inside of core water gap main part is set up with anti -overflow structure. The utility model discloses is set up with anti -overflow structure, is set up with gradient groove in the inside of core water gap main part, prevents liquid and appears overflow condition, and in order to strengthen its effect conveniently, thereby makes liquid when appearing overflow phenomenon its push baffle rotates in the top of gradient groove, and further makes the baffle and blocks liquid, thereby reached the purpose that the device prevented overflow in the process of operating use.

Description

Technical Field

[0001] This utility model relates to the field of core nozzle technology for thin strip continuous casting, and in particular to a core nozzle for thin strip continuous casting with a gradient structure. Background Technology

[0002] Through precise flow control, thermal management, and structural adaptation, the core nozzle for thin strip continuous casting has become a key component for achieving efficient, stable, and high-quality thin strip production, leading to its increasingly widespread use.

[0003] To this end, patent CN217858778U discloses a core nozzle for thin strip continuous casting, including a core nozzle body. The core nozzle body is provided with a core nozzle inner cavity and an anti-overflow cavity. A baffle is provided between the core nozzle inner cavity and the anti-overflow cavity. The core nozzle inner cavity has a trapezoidal cross-section and a flow stabilizing groove is provided at its bottom. Several guide holes are provided on both sides of the flow stabilizing groove. Several diameter changing holes are provided on both side walls of the core nozzle inner cavity near the bottom. The guide holes and diameter changing holes correspond one-to-one and are interconnected, which can adjust the flow rate and direction of molten steel from the transition ladle or rectifier ladle to ensure the stability and uniformity of the molten pool below.

[0004] The aforementioned core nozzle for thin strip continuous casting is not effective in preventing overflow during use, and may cause dust to enter its interior after use, affecting subsequent use and thus failing to meet actual usage requirements. Utility Model Content

[0005] The purpose of this invention is to provide a thin strip continuous casting core nozzle with a gradient structure to solve the defects of existing thin strip continuous casting core nozzles, such as poor overflow prevention and difficulty in preventing dust ingress.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a thin strip continuous casting core nozzle with a gradient structure, including a core nozzle body and a guide channel;

[0007] The core water inlet body has a flow guide channel inside, and an anti-overflow structure inside.

[0008] The overflow prevention structure includes a gradient groove opened inside the core water inlet body. Limiting grooves are evenly opened at the top of the gradient groove. Baffles are provided inside the limiting grooves. Rotating shafts are fixed on both sides of the baffles.

[0009] The bottom of the core water inlet body is uniformly provided with protective structures.

[0010] Preferably, the limiting grooves are evenly distributed inside the core nozzle body at the top of the gradient groove.

[0011] Preferably, the rotating shafts are symmetrically distributed on both sides of the baffle, and one side of the rotating shafts extends to the outer side of the top of the gradient groove.

[0012] Preferably, the rotating shafts all extend into the interior of the core sprue body, and the baffles are rotatably connected to the core sprue body within the limiting groove via the rotating shafts.

[0013] Preferably, the protective structure includes uniformly opened guide holes inside the core water inlet body, a guide seat uniformly fixed at the bottom end of the core water inlet body at the bottom end of the guide hole, a reserved groove uniformly opened on the outer wall of the guide seat, and a hinge plate provided inside the reserved groove.

[0014] Preferably, the guide holes are evenly distributed inside the core water inlet body, and the guide seat and the guide groove are interconnected through the guide holes.

[0015] Preferably, the reserved grooves are symmetrically distributed on the outer wall of the guide seat, and the hinge plate is rotatably connected inside the reserved grooves.

[0016] The present invention provides a thin-strip continuous casting core nozzle with a gradient structure, the advantages of which are:

[0017] By incorporating an anti-overflow structure, a gradient groove is created inside the core inlet body to prevent liquid from overflowing. To further enhance its effectiveness, when liquid overflows, it pushes a baffle to rotate at the top of the gradient groove, thereby blocking the liquid and achieving the purpose of preventing overflow during operation.

[0018] With a protective structure, the interior of the core nozzle body and the guide seat are connected through the guide hole, so that when the liquid is discharged, the impact force can easily push the hinge plate to rotate and open inside the reserved groove. After use, the hinge plate will reset due to its own weight, thus achieving the purpose of not easily affecting the discharge effect and facilitating dust prevention. Attached Figure Description

[0019] Figure 1 This is a front-view three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 This is a frontal three-dimensional structural diagram of the present invention;

[0021] Figure 3 This is a cross-sectional front view of the three-dimensional structure of this utility model;

[0022] Figure 4 This is a three-dimensional structural schematic diagram of the present invention from a cross-sectional side view;

[0023] Figure 5 This is a partial three-dimensional structural schematic diagram of the present invention.

[0024] The following are the annotations in the figure: 1. Main body of the core inlet; 2. Flow guide channel; 3. Overflow prevention structure; 301. Gradient channel; 302. Limiting channel; 303. Baffle; 304. Rotating shaft; 4. Protective structure; 401. Flow guide hole; 402. Flow guide seat; 403. Reserved groove; 404. Hinge plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-5 The present invention provides a thin strip continuous casting core nozzle with a gradient structure, comprising a core nozzle body 1 and a guide channel 2.

[0027] Reference Figure 1-4 As shown, a guide channel 2 is provided inside the core sluice gate body 1, and an anti-overflow structure 3 is provided inside the core sluice gate body 1. The anti-overflow structure 3 includes a gradient channel 301 provided inside the core sluice gate body 1. Limiting channels 302 are evenly provided at the top of the gradient channel 301. Baffles 303 are provided inside each limiting channel 302. Rotating shafts 304 are fixed on both sides of each baffle 303. The limiting channels 302 are evenly distributed inside the core sluice gate body 1 at the top of the gradient channel 301. The rotating shafts 304 are symmetrically distributed on both sides of the baffles 303. One side of the rotating shafts 304 extends to the outside of the top of the gradient channel 301. The rotating shafts 304 extend into the interior of the core sluice gate body 1. The baffles 303 are rotatably connected to the core sluice gate body 1 inside the limiting channel 302 through the rotating shafts 304.

[0028] The core nozzle for thin strip continuous casting, through precise flow control, thermal management, and structural adaptation, has become a key component for achieving efficient, stable, and high-quality thin strip production. However, overflow may occur during its use. To address this, an anti-overflow structure 3 is incorporated. This structure features a gradient groove 301 inside the core nozzle body 1, with a limiting groove 302 at the top of the gradient groove 301. An internal baffle 303 rotates within the core nozzle body 1 via a rotating shaft 304. In the event of overflow, the liquid pushes the baffle 303 upward to form a flow-blocking plate, preventing further overflow and significantly increasing the practicality of the device.

[0029] Reference Figure 5 As shown, a protective structure 4 is uniformly provided at the bottom end of the core water inlet body 1. The protective structure 4 includes a guide hole 401 uniformly provided inside the core water inlet body 1. A guide seat 402 is uniformly fixed at the bottom end of the core water inlet body 1 at the bottom end of the guide hole 401. A reserved groove 403 is uniformly provided on the outer wall of the guide seat 402. A hinge plate 404 is provided inside the reserved groove 403. The guide holes 401 are evenly distributed inside the core water inlet body 1. The guide seat 402 and the guide groove 2 are interconnected through the guide holes 401. The reserved groove 403 is symmetrically distributed on the outer wall of the guide seat 402. The hinge plate 404 is rotatably connected inside the reserved groove 403.

[0030] When the device is not in use, dust can enter the interior of the core nozzle body 1, affecting its subsequent performance. To address this, a protective structure 4 is installed. A guide seat 402 is fixed to the bottom of the core nozzle body 1 below the guide hole 401, and reserved grooves 403 are provided on both sides of the guide seat 402. A hinge plate 404 is hinged inside the reserved groove 403. When liquid is discharged, the liquid pushes the hinge plate 404 to rotate to both sides to discharge the liquid. When not in use, the hinge plate 404 covers the reserved groove 403 due to its own weight, preventing dust and other contaminants from entering the interior of the core nozzle body 1 through the guide hole 401, thus greatly increasing the practicality of the device.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A thin strip continuous casting core nozzle with a gradient structure, comprising a core nozzle body (1) and a guide channel (2); Its features are: The core water inlet body (1) has a flow guide groove (2) inside, and the core water inlet body (1) has an anti-overflow structure (3) inside; The overflow prevention structure (3) includes a gradient groove (301) opened inside the core water inlet body (1). The top of the gradient groove (301) is uniformly opened with a limiting groove (302). The limiting groove (302) is provided with a baffle (303) inside. The baffle (303) is fixed with a rotating shaft (304) on both sides. The bottom end of the core water inlet body (1) is uniformly provided with protective structures (4).

2. The thin-strip continuous casting core nozzle with a gradient structure according to claim 1, characterized in that: The limiting grooves (302) are evenly distributed inside the core nozzle body (1) at the top of the gradient groove (301).

3. The thin-strip continuous casting core nozzle with a gradient structure according to claim 1, characterized in that: The rotating shaft (304) is symmetrically distributed on both sides of the baffle (303), and one side of the rotating shaft (304) extends to the outer side of the top of the gradient groove (301).

4. The thin strip continuous casting core nozzle with a gradient structure according to claim 1, characterized in that: The rotating shafts (304) all extend into the interior of the core sprue body (1), and the baffle (303) is rotatably connected to the core sprue body (1) through the rotating shafts (304) inside the limiting groove (302).

5. The thin-strip continuous casting core nozzle with a gradient structure according to claim 1, characterized in that: The protective structure (4) includes a guide hole (401) evenly opened inside the core water inlet body (1). A guide seat (402) is evenly fixed at the bottom end of the core water inlet body (1) at the bottom end of the guide hole (401). A reserved groove (403) is evenly opened on the outer wall of the guide seat (402). A hinge plate (404) is provided inside the reserved groove (403).

6. The thin-strip continuous casting core nozzle with a gradient structure according to claim 5, characterized in that: The guide holes (401) are evenly distributed inside the core water inlet body (1), and the guide seat (402) and the guide groove (2) are interconnected through the guide holes (401).

7. The thin strip continuous casting core nozzle with a gradient structure according to claim 5, characterized in that: The reserved slots (403) are symmetrically distributed on the outer wall of the guide seat (402), and the hinge plate (404) is rotatably connected inside the reserved slots (403).

Images