Argon blowing stirring device for steelmaking steel ladle

Abstract

The utility model relates to the technical field of steelmaking ladle processing, and discloses an argon blowing stirring device of a steelmaking ladle, which comprises a base, a supporting seat is fixed on one side of the top end of the base, a gear is mounted on one side in the supporting seat, a first servo motor is mounted at one end of the gear, a rack rod is meshed with one side of the gear, and a second servo motor is mounted at the other side of the gear. And an argon leading-in pipe is arranged on one side of the bottom end of the discharging pipe, a cover plate is installed at the top end of the material barrel, and a hole body matched with the rotating shaft is formed in the middle of the interior of the cover plate. Through the arrangement of the first servo motor, the gear, the rack rod, the moving plate and other components, when the device is used, the rotating shaft drives the stirring blades to rotate to stir molten steel, the stirring blades can change the fixed stirring position when stirring, the stirring blades move up and down in the material barrel to stir the molten steel up and down, and the stirring efficiency is improved. And argon and molten steel are fused more sufficiently, the fusion effect is better, and the machining quality of steel is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steelmaking ladle processing, in particular to an argon blowing and stirring device for a steelmaking ladle. Background Art

[0002] Steelmaking refers to putting pig iron into a steelmaking furnace for high-temperature heating to form molten steel, and then using corresponding chemical reactions to remove impurities in the molten steel to obtain the required molten steel. The steelmaking ladle is the container used to hold molten steel in the steelmaking process. Argon gas needs to be introduced in the steelmaking process. After the argon gas is introduced, the argon gas and molten steel are fully mixed through a stirring device to protect the molten steel and improve the quality of the steel.

[0003] During the use of the argon blowing stirring device of the traditional steelmaking ladle, the stirring position of the stirring blades rotating inside the discharge pipe will be maintained at a fixed position inside the discharge pipe for stirring. The stirring position is relatively single. Since the stirring position is fixed, the mixing between the introduced argon gas and the molten steel is insufficient, and the argon gas cannot effectively protect and refine the molten steel, thereby reducing the quality of steel production. Therefore, we propose an argon blowing stirring device for a steelmaking ladle to improve the above-mentioned problems. Utility Model Content

[0004] The utility model aims to provide an argon blowing stirring device for a steelmaking ladle to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an argon blowing and stirring device for a steelmaking ladle, comprising a base, a support base is fixed on one side of the top of the base, a gear is installed on one side of the inside of the support base, and a first servo motor is installed on one end of the gear, a rack rod is meshed with one side of the gear, a moving plate is fixed on one side of the rack rod, a movable block is fixed on the outer wall of the moving plate, a movable groove is arranged on the outer wall of the movable block, and the movable groove is arranged on one side of the inside of the support base, a pulley structure is installed on the top of the moving plate, a second servo motor is installed on one side of the top of the pulley structure, a rotating shaft is arranged on one side of the bottom end of the pulley structure, and a stirring blade is installed on the bottom end of the outer wall of the rotating shaft, a material barrel is installed on the other side of the top of the base, a discharge pipe is installed on the bottom end of one side of the material barrel, an argon gas introduction pipe is arranged on one side of the bottom end of the discharge pipe, a cover plate is installed on the top of the material barrel, and a hole body matching the rotating shaft is arranged at the middle position inside the cover plate.

[0006] Preferably, two groups of movable blocks are provided, and the two groups of movable blocks are symmetrically distributed about the central axis of the movable plate.

[0007] Preferably, a telescopic cylinder is fixed to the outer side wall of the material barrel, and the top end of the telescopic cylinder is fixed to the bottom end of the cover plate.

[0008] Preferably, four groups of the telescopic cylinders are provided, and the four groups of the telescopic cylinders are distributed in a ring shape with respect to the outer side wall of the material barrel.

[0009] Preferably, a filter box is installed at the bottom end of the material barrel, mounting seats are fixed at both ends of the inside of the filter box, mounting plates are movably provided inside the mounting seats, and a filter screen is fixed inside the mounting plates.

[0010] Preferably, three groups of filter screens are provided, and the three groups of filter screens are distributed at equal intervals inside the mounting plate.

[0011] Preferably, the cross section of the mounting plate is smaller than the cross section of the mounting seat, and a front-to-rear sliding structure is formed between the mounting plate and the mounting seat.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the argon blowing stirring device of the steelmaking ladle not only realizes that the stirring blade can move up and down inside the material barrel, so that the argon gas and the molten steel are more fully mixed, and the discharge pipe is convenient for moving the cover plate to open the discharge pipe, which is more convenient to operate, but also realizes the filtration of the argon gas, so as to avoid the introduction of impurities to affect the processing effect;

[0013] (1) By providing components such as a first servo motor, a gear, a rack rod and a moving plate, the device can drive the stirring blade to rotate through the rotating shaft to stir the molten steel when in use. When the stirring blade is stirring, the stirring blade can change the fixed stirring position and move up and down inside the material barrel to stir the molten steel up and down, so that the argon gas and the molten steel are more fully fused, the fusion effect is better, and the impurities in the molten steel are effectively removed, thereby improving the purity and quality of the steel, thereby improving the processing quality of the steel;

[0014] (2) By providing components such as a telescopic cylinder, during the operation of the device, it is necessary to move the cover plate to open the material barrel for cleaning and maintenance. During the maintenance process, the telescopic cylinder can be used to easily and quickly push the cover plate to move, so that the stirring device can easily open the material barrel, thereby improving the convenience of opening and closing the stirring device, making it more convenient to use, and improving the opening and closing efficiency of the stirring device;

[0015] (3) By providing components such as a filter box, a mounting plate and a filter screen, when argon gas is introduced into the molten steel being processed through a pipeline, the filter screen inside the filter box can filter impurities in the argon gas, so that impurities with argon gas enter the molten steel and affect the effect of the molten steel, thereby effectively ensuring the processing efficiency of the argon blowing and stirring device of the steelmaking ladle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the side structure of the material barrel of the utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the filter screen of the utility model;

[0019] Figure 4 For the utility model Figure 1 Schematic diagram of the enlarged cross-section structure at point A in the middle.

[0020] In the figure: 1. base; 2. first servo motor; 3. gear; 4. rack rod; 5. support seat; 6. movable groove; 7. movable block; 8. second servo motor; 9. pulley structure; 10. moving plate; 11. rotating shaft; 12. cover plate; 13. telescopic cylinder; 14. material barrel; 15. stirring blade; 16. argon gas inlet pipe; 17. filter box; 18. discharge pipe; 19. mounting plate; 20. filter screen; 21. mounting seat. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0022] Example 1: Please refer to Figure 1-4, an argon blowing stirring device for a steelmaking ladle, comprising a base 1, a support base 5 is fixed to one side of the top of the base 1, a gear 3 is installed on one side of the inside of the support base 5, and a first servo motor 2 is installed at one end of the gear 3, a rack rod 4 is meshed with one side of the gear 3, a moving plate 10 is fixed to one side of the rack rod 4, a movable block 7 is fixed to the outer wall of the moving plate 10, a movable groove 6 is arranged on the outer wall of the movable block 7, and the movable groove 6 is arranged on one side of the inside of the support base 5, a pulley structure 9 is installed on the top of the moving plate 10, a second servo motor 8 is installed on one side of the top of the pulley structure 9, and a pulley structure 9 is arranged on one side of the bottom end. A rotating shaft 11 is arranged, and a stirring blade 15 is installed at the bottom end of the outer wall of the rotating shaft 11, a material barrel 14 is installed on the other side of the top of the base 1, a discharge pipe 18 is installed at the bottom end of one side of the material barrel 14, and an argon gas introduction pipe 16 is arranged on one side of the bottom end of the discharge pipe 18, a cover plate 12 is installed at the top of the material barrel 14, and a hole body matching the rotating shaft 11 is arranged at the middle position inside the cover plate 12, two groups of movable blocks 7 are arranged, and the two groups of movable blocks 7 are symmetrically distributed about the central axis of the movable plate 10, and the symmetrically distributed movable blocks 7 move up and down together inside the movable groove 6 to provide better stability for the movable plate 10;

[0023] Specifically, Figure 1 and Figure 2 As shown, the first servo motor 2 is started to drive the gear 3 to rotate. The rotation of the gear 3 drives the rack rod 4 engaged with the outer wall to move up and down, so that the movable plate 10 fixed on one side of the rack rod 4 can drive the stirring blade 15 to move up and down inside the movable plate 10 to stir the material at different positions inside the material barrel 14, so that the argon gas is fully integrated with the molten steel after being introduced into the molten steel.

[0024] Embodiment 2: A telescopic cylinder 13 is fixed to the outer wall of the material barrel 14, and the top of the telescopic cylinder 13 is fixed to the bottom of the cover plate 12. Four groups of telescopic cylinders 13 are provided. The four groups of telescopic cylinders 13 are distributed in an annular manner with respect to the outer wall of the material barrel 14. The annular distribution design enables the cover plate 12 to move up and down smoothly to open and close;

[0025] Specifically, Figure 1 and Figure 2 As shown, when the telescopic cylinder 13 is opened, the telescopic cylinder 13 is started to push the cover plate 12 upward, so that the cover plate 12 moves out from the inside of the material barrel 14 to open the material barrel 14. When closing subsequently, the telescopic cylinder 13 is started again to pull the cover plate 12 back to its original position to complete the closing of the material barrel 14.

[0026] Embodiment 3: A filter box 17 is installed at the bottom end of the material barrel 14, and mounting seats 21 are fixed at both ends of both sides of the inside of the filter box 17. A mounting plate 19 is movably provided inside the mounting seat 21, and a filter screen 20 is fixed inside the mounting plate 19. Three groups of filter screens 20 are provided, and the three groups of filter screens 20 are evenly spaced inside the mounting plate 19. The design of the three groups of filter screens 20 can have a better filtering effect on argon gas. The cross section of the mounting plate 19 is smaller than the cross section of the mounting seat 21. A front-to-rear sliding structure is formed between the mounting plate 19 and the mounting seat 21. The design of the sliding structure facilitates the movement of the filter screen 20 so as to take out the filter screen 20 for cleaning and maintenance;

[0027] Specifically, Figure 1 and Figure 3 As shown, before the argon gas enters the material barrel 14, the argon gas will first enter the filter box 17, and then the filter screen 20 inside the filter box 17 will filter the argon gas to prevent the argon gas with impurities from entering the material barrel 14, thereby ensuring the fusion effect between the argon gas and the molten steel. Subsequently, the door of the filter box 17 is opened, and then the mounting plate 19 is pulled to one end to slide inside the mounting seat 21 to drive the filter screen 20 to move out of the filter box 17. Finally, the impurities adhered to the filter box 17 during filtration are cleaned and installed back to its original position for continued use.

[0028] It should be noted that in order to avoid the risk of interference between the stirring blade 15 and the bottom wall of the material barrel 14 when it moves up and down, it is necessary to set the upper dead point and the lower dead point of the stirring blade 15, by controlling the first servo motor 2 to move downward until the stirring blade 15 is close to the bottom wall of the material barrel 14 but does not contact the material barrel 14. Specifically, when the stirring blade 15 is close to and contacts the bottom wall of the material barrel 14, the stirring blade 15 is controlled to move up 5mm, and the coordinates of this position are set as the lower dead point. Similarly, the first servo motor 2 is controlled to move upward until the stirring blade 15 is close to the top wall of the material barrel 14 but does not contact the material barrel 14. Specifically, when the stirring blade 15 is close to and contacts the top wall of the material barrel 14, the stirring blade 15 is controlled to move down 5mm.

[0029] Working principle: When the utility model is in use, after the molten steel is poured into the interior of the material barrel 14 through the feed port on the cover plate 12, the second servo motor 8 is started to drive the pulley structure 9 to rotate, and the pulley structure 9 drives the rotating shaft 11 to rotate so that the stirring blade 15 at the bottom end of the outer wall of the rotating shaft 11 stirs the molten steel. While stirring, the argon gas inlet pipe 16 introduces argon gas into the interior of the material barrel 14. Before the argon gas is introduced into the interior of the material barrel 14, the filter screen 20 inside the filter box 17 will filter the impurities in the argon gas, so that the pure argon gas enters the interior of the material barrel 14. During the stirring process, the first servo motor 8 is started. The servo motor 2 drives the gear 3 to rotate, and the rotation of the gear 3 drives the rack rod 4 meshing with the outer wall to move up and down, so that the moving plate 10 fixed on one side of the rack rod 4 can drive the stirring blade 15 to move up and down inside the moving plate 10 to stir the materials at different positions inside the material barrel 14, so that the argon gas and molten steel entering the material barrel 14 can be fully mixed, and can be discharged through the discharge pipe 18 after the stirring is completed. When the interior of the material barrel 14 is subsequently maintained, the telescopic cylinder 13 can be started to push the cover plate 12 to move upward to conveniently open the material barrel 14, and then the material barrel 14 can be maintained accordingly.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An argon blowing stirring device for a steelmaking ladle, comprising a base (1), characterized in that: A support seat (5) is fixed on one side of the top of the base (1), a gear (3) is installed on one side of the interior of the support seat (5), and a first servo motor (2) is installed on one end of the gear (3), a rack rod (4) is meshed with one side of the gear (3), a moving plate (10) is fixed on one side of the rack rod (4), a movable block (7) is fixed on the outer wall of the moving plate (10), a movable groove (6) is provided on the outer wall of the movable block (7), and the movable groove (6) is provided on one side of the interior of the support seat (5), a pulley structure (9) is installed on the top of the moving plate (10), and the pulley structure (9) is installed on the top of the moving plate (10). A second servo motor (8) is installed on one side of the top of the pulley structure (9), a rotating shaft (11) is provided on one side of the bottom of the pulley structure (9), and a stirring blade (15) is installed on the bottom end of the outer wall of the rotating shaft (11), a material barrel (14) is installed on the other side of the top of the base (1), a discharge pipe (18) is installed on the bottom end of one side of the material barrel (14), an argon gas introduction pipe (16) is provided on one side of the bottom end of the discharge pipe (18), a cover plate (12) is installed on the top of the material barrel (14), and a hole body matching the rotating shaft (11) is provided at the middle position inside the cover plate (12).

2. The argon blowing and stirring device for a steelmaking ladle according to claim 1, characterized in that: The movable blocks (7) are provided in two groups, and the two groups of movable blocks (7) are symmetrically distributed about the central axis of the movable plate (10).

3. The argon blowing and stirring device for a steelmaking ladle according to claim 1, characterized in that: A telescopic cylinder (13) is fixed to the outer side wall of the material barrel (14), and the top end of the telescopic cylinder (13) is fixed to the bottom end of the cover plate (12).

4. The argon blowing and stirring device for a steelmaking ladle according to claim 3, characterized in that: The telescopic cylinders (13) are provided in four groups, and the four groups of telescopic cylinders (13) are distributed in a ring shape with respect to the outer side wall of the material barrel (14).

5. The argon blowing and stirring device for a steelmaking ladle according to claim 1, characterized in that: A filter box (17) is installed at the bottom end of the material barrel (14), and mounting seats (21) are fixed at both ends of the inside of the filter box (17). A mounting plate (19) is movably provided inside the mounting seat (21), and a filter screen (20) is fixed inside the mounting plate (19).

6. The argon blowing and stirring device for a steelmaking ladle according to claim 5, characterized in that: The filter screens (20) are provided in three groups, and the three groups of filter screens (20) are distributed at equal intervals inside the mounting plate (19).

7. The argon blowing and stirring device for a steelmaking ladle according to claim 5, characterized in that: The cross section of the mounting plate (19) is smaller than the cross section of the mounting seat (21), and a front-to-rear sliding structure is formed between the mounting plate (19) and the mounting seat (21).

Images