Filtering anti-blocking type continuous casting long nozzle

Abstract

The utility model discloses a filtering anti-blocking type continuous casting long nozzle, and relates to the field of continuous casting long nozzles, the filtering anti-blocking type continuous casting long nozzle comprises a long nozzle body, the upper end of the long nozzle body is fixedly connected with a long nozzle bowl mouth, the inner part of the long nozzle body is connected with a filtering frame in a sliding manner, and the upper end of the filtering frame is fixedly connected with a mounting plate. By the adoption of the structure, molten steel firstly passes through the long nozzle bowl opening and then enters the long nozzle body, the molten steel is filtered under the action of the filter screen at the upper end, impurities in the molten steel can be filtered out, and the impurities in the molten steel are collected under the action of the filter screen on the side face and the collecting cavity; and meanwhile, impurities filtered from the surface of the filter screen at the upper end can slowly enter the collecting cavity under the impact action of the molten steel to be collected, so that the molten steel can be filtered and collected under the action of the collecting and filtering assembly.

Description

Technical Field

[0001] The utility model belongs to the field of continuous casting long shrouds, in particular to a filtering and anti-blocking type continuous casting long shroud. Background Art

[0002] At present, the molten steel in the ladle is poured into the tundish through the long nozzle, which is mainly used to protect the molten steel injected from the ladle into the tundish and prevent the molten steel from directly contacting the air and causing secondary oxidation. In the process of continuous casting of molten steel, in order to increase the opening rate of the ladle, drainage sand is added to the ladle nozzle for drainage when the ladle is opened.

[0003] According to a Chinese patent with the publication number "CN209647586U", a long shroud for continuous casting is disclosed. It includes a long shroud wall body, and a cavity for molten steel flow channel arranged inside the long shroud wall body; the long shroud wall body includes a long shroud bowl, a long shroud body, a slag line part, a diameter-changing area, and a steel outlet arranged in sequence from top to bottom; the wall body of the steel outlet includes a first side surface, a second side surface, a third side surface, and a fourth side surface arranged in sequence around the lower part of the diameter-changing area; the shape of the cavity defined by the first side surface, the second side surface, the third side surface, and the fourth side surface is a fan-shaped cavity with a certain thickness. In the long shroud provided by the utility model, since the shape of the cavity in the steel outlet is a fan-shaped cavity with a certain thickness, the speed of the molten steel will slow down when flowing along the inner wall of the long shroud, the kinetic energy will be reduced, and the impact area in the tundish will be expanded, so that the impact depth of the steel flow becomes shallower and the impact on the bottom of the tundish becomes smaller;

[0004] However, there is no filtering structure inside the above-mentioned device, and there are various metal impurities and suspended impurities in the molten steel. These impurities will directly enter the crystallizer, contact with the molten steel and adhere to the surface of the ingot, which will cause defects and quality problems on the surface of the ingot. At the same time, the impurities in the molten steel will make the molten steel unevenly distributed in the crystallizer, and may cause poor solidification and uneven structure on the surface of the ingot. Utility Model Content

[0005] In view of the problems mentioned in the background technology, the purpose of the utility model is to provide a filtering and anti-blocking long shroud for continuous casting to solve the above problems.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A filtering and anti-blocking continuous casting long water nozzle, comprising a long water nozzle body, the upper end of the long water nozzle body is fixedly connected to the long water nozzle bowl, the interior of the long water nozzle body is slidably connected with a filter frame, the upper end of the filter frame is fixedly connected with a mounting plate, the inner side of the mounting plate is provided with a cleaning assembly, the lower end of the filter frame is fixedly connected with a collecting and filtering assembly, the collecting and filtering assembly and the cleaning assembly are movably connected to each other, the collecting and filtering assembly comprises a collecting plate arranged at the lower end of the filter frame, the upper end of the collecting plate is located inside the filter frame and is fixedly connected with a side filter screen, the upper end of the side filter screen is fixedly connected with an upper filter screen, the upper end of the collecting plate is located between the filter frame and the side filter screen to form a collecting cavity, the lower end of the cleaning assembly and the upper filter screen are movably connected to each other.

[0008] Furthermore, as a preferred technical solution, the cleaning assembly includes a driving fan blade arranged at the lower end of the mounting plate, the driving fan blade and the lower end of the mounting plate are rotatably connected to each other, the lower end of the driving fan blade is fixedly connected to a telescopic rod, the lower end of the telescopic rod is fixedly connected to a mounting seat, the surrounding sides of the mounting seat are fixedly connected to the mounting rod, the lower end of the mounting rod is fixedly connected to a cleaning plate, and the cleaning plate and the upper end filter are movably connected to each other.

[0009] Furthermore, as a preferred technical solution, the telescopic rod includes a sleeve rod arranged at the lower end of the driving fan blade, the interior of the sleeve rod is fixedly connected to a spring, the other end of the spring is fixedly connected to a movable rod, and the movable rod and the sleeve rod are mutually limited and plugged.

[0010] Furthermore, as an optimal technical solution, the lower end of the mounting seat is fixedly connected with a rotating groove, the interior of the rotating groove is rotatably connected with a rotating block, the lower end of the rotating block is fixedly connected with an anti-skid plate, and the anti-skid plate is movably connected to the surface of the upper filter screen.

[0011] Furthermore, as a preferred technical solution, both sides of the upper end of the mounting plate are fixedly connected with connecting rods, the other ends of the connecting rods are fixedly connected with cross bars, and the surfaces of the cross bars are fixedly connected with handle bars.

[0012] Furthermore, as a preferred technical solution, mounting holes are provided on both sides of the mounting plate, mounting screw grooves are provided on the upper end of the filter frame, mounting screws are inserted into the inside of the mounting holes, and the mounting screws pass through the mounting holes and are threadedly connected to the mounting screw grooves.

[0013] Furthermore, as an optimal technical solution, the outer side of the filter frame and the inner side of the long water outlet body are slidably connected to each other, the inner side of the long water outlet body is provided with a plurality of mounting grooves, the outer side of the filter frame is fixedly connected with a plurality of mounting slide blocks, and the mounting grooves and the mounting slide blocks are slidably connected to each other.

[0014] In summary, the utility model mainly has the following beneficial effects:

[0015] First, by setting up the collection and filtering component, firstly, by installing the continuous casting long nozzle to a suitable position and then pouring molten steel, the molten steel first passes through the bowl of the long nozzle and then enters the interior of the long nozzle body, and then the molten steel is filtered under the action of the upper filter screen, so that the impurities in the molten steel can be filtered out, and the impurities in the molten steel can be collected under the action of the side filter screen and the collection cavity, and at the same time, the impurities filtered off the surface of the upper filter screen will also slowly enter the interior of the collection cavity under the action of the impact of the molten steel for collection, so that the molten steel can be filtered and collected under the action of the collection and filtering component;

[0016] Secondly, by means of the cleaning assembly, when molten steel is added through the long water nozzle of continuous casting, the molten steel will cause the driving blades to rotate when it impacts the driving blades, and the rotation of the driving blades causes the telescopic rod to drive the mounting seat to rotate, and the rotation of the mounting seat causes multiple mounting rods on the outside of the mounting seat to rotate, so that the cleaning plate rotates under the action of the mounting rods, and the cleaning plate and the upper filter are movably connected, so that the upper filter can be cleaned under the action of the cleaning plate, and the cleaned impurities will enter the interior of the collecting cavity, so that the upper filter can be cleaned, thereby increasing the slag discharge speed of the upper filter to avoid clogging of the upper filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the filter frame of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the cleaning component of the utility model;

[0020] Figure 4 The utility model Figure 3 Schematic diagram of the enlarged structure of part A.

[0021] Figure numerals: 1. long water outlet body; 2. long water outlet bowl; 3. filter frame; 4. collection filter assembly; 41. collection plate; 42. side filter screen; 43. upper filter screen; 44. collection cavity; 5. cleaning assembly; 51. driving fan blade; 52. telescopic rod; 521. sleeve rod; 522. spring; 523. movable rod; 53. mounting seat; 54. mounting rod; 55. cleaning plate; 6. mounting plate; 7. connecting rod; 8. cross bar; 9. handle bar; 10. mounting hole; 11. mounting screw groove; 12. mounting screw; 13. mounting slide groove; 14. mounting slide block; 15. rotating groove; 16. rotating block; 17. anti-skid plate. DETAILED DESCRIPTION

[0022] Example

[0023] refer to Figures 1 to 4 A filtering and anti-blocking continuous casting long water nozzle of the present embodiment comprises a long water nozzle body 1, the upper end of the long water nozzle body 1 is fixedly connected to the long water nozzle bowl 2, a filter frame 3 is slidably connected inside the long water nozzle body 1, a mounting plate 6 is fixedly connected to the upper end of the filter frame 3, a cleaning component 5 is arranged on the inner side of the mounting plate 6, a collecting and filtering component 4 is fixedly connected to the lower end of the filter frame 3, the collecting and filtering component 4 and the cleaning component 5 are movably connected to each other, the collecting and filtering component 4 comprises a collecting plate 41 arranged at the lower end of the filter frame 3, the upper end of the collecting plate 41 is located inside the filter frame 3 and is fixedly connected to a side filter screen 42, The upper end of the side filter 42 is fixedly connected to the upper filter 43, the upper end of the collecting plate 41 is located between the filter frame 3 and the side filter 42 to form a collecting cavity 44, the lower end of the cleaning component 5 and the upper filter 43 are movably connected to each other, mounting holes 10 are provided on both sides of the mounting plate 6, and mounting screw grooves 11 are provided on the upper end of the filter frame 3. Mounting screws 12 are inserted into the inside of the mounting holes 10, and the mounting screws 12 pass through the mounting holes 10 and are threadedly connected to the mounting screw grooves 11; at the same time, the present structure is made of high-temperature resistant materials, so that the high temperature heat of molten steel can be resisted when the device is in use.

[0024] refer to Figure 1-Figure 4 The cleaning assembly 5 includes a driving blade 51 arranged at the lower end of the mounting plate 6, the driving blade 51 and the lower end of the mounting plate 6 are rotatably connected to each other, the lower end of the driving blade 51 is fixedly connected to a telescopic rod 52, the lower end of the telescopic rod 52 is fixedly connected to a mounting seat 53, the surrounding sides of the mounting seat 53 are fixedly connected to mounting rods 54, the lower end of the mounting rod 54 is fixedly connected to a cleaning plate 55, the cleaning plate 55 and the upper end filter screen 43 are movably connected to each other, the lower end of the mounting seat 53 is fixedly connected to a rotating groove 15, the interior of the rotating groove 15 is rotatably connected to a rotating block 16, the lower end of the rotating block 16 is fixedly connected to an anti-skid plate 17, and the anti-skid plate 17 is fixedly connected to the upper end filter screen The surface of 43 is movably connected; when the molten steel impacts the driving blade 51, the driving blade 51 will be rotated, and the rotation of the driving blade 51 will cause the telescopic rod 52 to drive the mounting seat 53 to rotate, and the rotation of the mounting seat 53 causes multiple mounting rods 54 on the outside of the mounting seat 53 to rotate, so that the cleaning plate 55 is rotated under the action of the mounting rod 54, and the cleaning plate 55 is movably connected to the upper filter screen 43, so that the upper filter screen 43 can be cleaned under the action of the cleaning plate 55, and the situation that the mounting seat 53 and the upper filter screen 43 are rotatably connected and wear the upper filter screen 43 can be avoided under the action of the anti-slip plate 17.

[0025] refer to Figure 3The telescopic rod 52 includes a sleeve rod 521 arranged at the lower end of the driving fan blade 51, and a spring 522 is fixedly connected to the inside of the sleeve rod 521, and the other end of the spring 522 is fixedly connected to a movable rod 523, and the movable rod 523 and the sleeve rod 521 are mutually limited and plugged; the telescopic rod 52 applies pressure to the mounting seat 53 under the action of the spring 522, so that the anti-skid plate 17 can fit tightly with the upper end filter screen 43, thereby avoiding the situation where the cleaning failure is caused by loose fitting.

[0026] refer to Figure 1 , both sides of the upper end of the mounting plate 6 are fixedly connected with connecting rods 7, the other ends of the connecting rods 7 are fixedly connected with cross bars 8, the surface of the cross bars 8 is fixedly connected with handle bars 9, the outer side of the filter frame 3 and the inner side of the long water nozzle body 1 are slidably connected to each other, the inner side of the long water nozzle body 1 is provided with a plurality of mounting grooves 13, the outer side of the filter frame 3 is fixedly connected with a plurality of mounting slide blocks 14, and the mounting grooves 13 and the mounting slide blocks 14 are slidably connected to each other; the setting of the mounting grooves 13 and the mounting slide blocks 14 makes it convenient to install the filter frame 3, and under the action of the handle bar 9, it is more convenient to disassemble the filter frame 3.

[0027] Principle and advantages of use: When in use, first install the continuous casting long nozzle to a suitable position and then pour molten steel. The molten steel first passes through the long nozzle bowl 2 and then enters the interior of the long nozzle body 1. Then, the molten steel is filtered under the action of the upper end filter screen 43 to filter impurities in the molten steel. When adding molten steel, the molten steel impacts the driving blade 51, which causes the driving blade 51 to rotate. Under the rotation of the driving blade 51, the telescopic rod 52 drives the mounting seat 53 to rotate. The rotation of the mounting seat 53 causes the multiple mounting rods 54 on the outer side of the mounting seat 53 to rotate, so that the cleaning plate 55 rotates under the action of the mounting rod 54, and the cleaning plate 55 and the upper end pass The filter screen 43 is movably connected, so that the upper filter screen 43 can be cleaned under the action of the cleaning plate 55, and the cleaned impurities will enter the interior of the collecting cavity 44, so that the upper filter screen 43 can be cleaned. The telescopic rod 52 is set to apply pressure to the mounting seat 53 under the action of the spring 522, so that the anti-slip plate 17 can fit tightly with the upper filter screen 43, thereby avoiding the situation where the cleaning failure is caused by loose fitting. At the same time, the installation groove 13 and the installation slider 14 are set to facilitate the installation of the filter frame 3, and the handle rod 9 makes it more convenient to disassemble the filter frame 3.

Claims

1. A filtering and anti-blocking continuous casting long nozzle, characterized by: The invention comprises a long shroud body (1), the upper end of the long shroud body (1) is fixedly connected to the long shroud bowl (2), a filter frame (3) is slidably connected inside the long shroud body (1), the upper end of the filter frame (3) is fixedly connected to a mounting plate (6), a cleaning component (5) is arranged on the inner side of the mounting plate (6), a collecting and filtering component (4) is fixedly connected to the lower end of the filter frame (3), the collecting and filtering component (4) and the cleaning component (5) are movably connected to each other, and the collecting and filtering component (4) and the cleaning component (5) are movably connected to each other. The component (4) comprises a collecting plate (41) arranged at the lower end of the filter frame (3); the upper end of the collecting plate (41) is located inside the filter frame (3) and is fixedly connected to a side filter screen (42); the upper end of the side filter screen (42) is fixedly connected to an upper filter screen (43); the upper end of the collecting plate (41) is located between the filter frame (3) and the side filter screen (42) to form a collecting cavity (44); and the lower end of the cleaning component (5) is movably connected to the upper filter screen (43).

2. The filtering and anti-blocking continuous casting long shroud according to claim 1, characterized in that: The cleaning assembly (5) comprises a driving blade (51) arranged at the lower end of the mounting plate (6); the driving blade (51) and the lower end of the mounting plate (6) are rotatably connected to each other; the lower end of the driving blade (51) is fixedly connected to a telescopic rod (52); the lower end of the telescopic rod (52) is fixedly connected to a mounting seat (53); the surrounding sides of the mounting seat (53) are fixedly connected to mounting rods (54); the lower end of the mounting rod (54) is fixedly connected to a cleaning plate (55); the cleaning plate (55) and the upper filter screen (43) are movably connected to each other.

3. The filtering and anti-blocking continuous casting long shroud according to claim 2, characterized in that: The telescopic rod (52) comprises a sleeve rod (521) arranged at the lower end of the driving blade (51); a spring (522) is fixedly connected inside the sleeve rod (521); the other end of the spring (522) is fixedly connected to a movable rod (523); and the movable rod (523) and the sleeve rod (521) are mutually limitedly plugged.

4. The filtering and anti-blocking continuous casting long shroud according to claim 2, characterized in that: The lower end of the mounting seat (53) is fixedly connected to a rotating groove (15), the interior of the rotating groove (15) is rotatably connected to a rotating block (16), the lower end of the rotating block (16) is fixedly connected to an anti-slip plate (17), and the anti-slip plate (17) is movably connected to the surface of the upper filter screen (43).

5. The filtering and anti-blocking continuous casting long shroud according to claim 1, characterized in that: Both sides of the upper end of the mounting plate (6) are fixedly connected to connecting rods (7), the other ends of the connecting rods (7) are fixedly connected to cross rods (8), and the surface of the cross rods (8) is fixedly connected to a handlebar (9).

6. The filtering and anti-blocking continuous casting long shroud according to claim 1, characterized in that: Both sides of the mounting plate (6) are provided with mounting holes (10), the upper end of the filter frame (3) is provided with mounting screw grooves (11), the interiors of the mounting holes (10) are plugged with mounting screw rods (12), and the mounting screw rods (12) pass through the mounting holes (10) and are threadedly connected to the mounting screw grooves (11).

7. The filtering and anti-blocking continuous casting long shroud according to claim 1, characterized in that: The outer side of the filter frame (3) and the inner side of the long shroud body (1) are slidably connected to each other, the inner side of the long shroud body (1) is provided with a plurality of mounting grooves (13), the outer side of the filter frame (3) is fixedly connected with a plurality of mounting slide blocks (14), and the mounting grooves (13) and the mounting slide blocks (14) are slidably connected to each other.

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