Master alloy block smelting furnace

Abstract

The utility model relates to the technical field of alloy block smelting, and discloses a mother alloy block smelting furnace which comprises a base plate, the top of the base plate is fixedly connected with a supporting frame, the interior of the supporting frame is fixedly connected with a melting tank, the top of the melting tank is fixedly connected with a feeding frame, and the top of the melting tank is provided with a vacuum pump. A motor is fixedly connected to the top of the melting tank, a transmission roller is fixedly connected to the output end of the motor, a first fixing rod is fixedly connected to the outer wall of the transmission roller, a second fixing rod is fixedly connected to the outer wall of the transmission roller, and a stirring assembly is arranged on the outer wall of the second fixing rod; the stirring assembly comprises a stirring rod and a scraping claw. According to the stirring device, the output end of the motor drives the transmission roller to rotate, so that the effect of stirring the middle part and the bottom of the melting tank is achieved, the problem of non-uniform components of materials in the melting tank caused by difficulty in fully stirring the middle part and the bottom is solved, and the component uniformity of a master alloy block is improved.

Description

A furnace for smelting master alloy blocks Technical Field

[0001] This utility model relates to the field of alloy block smelting technology, and in particular to a master alloy block smelting furnace. Background Technology

[0002] The master alloy ingot smelting furnace is a key piece of equipment used to prepare high-performance master alloys. It is widely used in aerospace, electronic devices, and special materials. As a base material, the compositional uniformity and physical properties of the master alloy directly affect the quality of subsequent processed products. Traditional smelting furnaces usually adopt a high-temperature melting process to mix various metal or non-metal elements in a molten state and obtain alloy ingots with a predetermined composition by cooling and shaping. However, due to the density differences of metal elements and the influence of temperature gradients during the melting process, the material in the melting tank is prone to compositional segregation, resulting in uneven internal structure of the alloy ingot. Therefore, how to achieve sufficient stirring of the material in the melting tank and ensure compositional uniformity has become an important challenge in master alloy ingot smelting technology.

[0003] In the prior art, the mixing of molten materials in the master alloy block smelting furnace is usually achieved by mechanical stirring or electromagnetic stirring. Mechanical stirring is achieved by driving the stirring paddle to rotate by a motor, using the shear force of the paddle blades to break the laminar flow state of the molten material and promote element diffusion. Electromagnetic stirring relies on an alternating magnetic field to induce eddy currents in the molten metal, generating Lorentz force to drive the movement of the melt.

[0004] The main problem with existing technologies is that the material in the middle and bottom of the molten tank is difficult to be fully stirred, resulting in uneven composition. Due to the limited effective range of the stirring paddle or electromagnetic field, high-density metal elements are easily deposited at the bottom of the molten tank, forming compositional segregation. At the same time, the fluidity of the melt at the bottom is poor, and traditional stirring methods are unable to generate sufficient shear force to break the deposited layer. This unevenness will directly affect the performance consistency of the master alloy block and may even lead to defects in subsequent processed products. Therefore, a master alloy block smelting furnace is proposed to solve the above problems. Summary of the Invention

[0005] To overcome the above shortcomings, this utility model provides a master alloy block smelting furnace, which aims to improve the problem of uneven composition of materials in the molten tank due to the difficulty in fully stirring the middle and bottom of the material in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a master alloy block smelting furnace, including a pad plate, a support frame fixedly connected to the top of the pad plate, a molten tank fixedly connected inside the support frame, a feeding frame fixedly connected to the top of the molten tank, a vacuum pump provided at the top of the molten tank, a motor fixedly connected to the top of the molten tank, a transmission roller fixedly connected to the output end of the motor, a fixing rod one fixedly connected to the outer wall of the transmission roller, a fixing rod two fixedly connected to the outer wall of the transmission roller, and a stirring assembly provided on the outer wall of the fixing rod two;

[0007] The stirring assembly includes a stirring rod and a scraper. One end of the stirring rod is fixedly connected to the top of the second fixed rod, and the other end of the stirring rod is fixedly connected to the bottom of the first fixed rod. The top of the scraper is fixedly connected to the bottom of the second fixed rod, and the bottom of the scraper is slidably connected to the inner wall of the melting tank. A shaping cavity is fixedly connected to the top of the pad, and a pushing assembly is provided inside the shaping cavity.

[0008] As a further description of the above technical solution:

[0009] A conveying pipe is fixedly connected to the outer wall of the melting tank. One end of the conveying pipe is fixedly connected to the inside of the shaping cavity. A control valve is provided on the outer wall of the conveying pipe, and a sealing door is slidably connected inside the shaping cavity.

[0010] As a further description of the above technical solution:

[0011] The pushing assembly includes a push plate and a push rod. The push plate is slidably connected inside the shaping cavity, and one end of the push rod is fixedly connected to the side wall of the push plate.

[0012] As a further description of the above technical solution:

[0013] The push rod is slidably connected inside the shaping cavity, and the other end of the push rod is fixedly connected to a push frame.

[0014] As a further description of the above technical solution:

[0015] A fixed plate is fixedly connected to the outer wall of the push rod, and a notch frame is fixedly connected to the outer wall of the push rod.

[0016] As a further description of the above technical solution:

[0017] The notch frame is rotatably connected to a pulley, and the side wall of the notch frame is fixedly connected to the side wall of the fixed plate.

[0018] As a further description of the above technical solution:

[0019] A spring is fitted on the outer wall of the push rod. One end of the spring is fixedly connected to the outer wall of the shaping cavity, and the other end of the spring is fixedly connected to the side wall of the fixed plate.

[0020] As a further description of the above technical solution:

[0021] The top of the pad has a groove, and the pulley is slidably connected inside the groove.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the transmission roller is driven to rotate by the output end of the motor. The rotation of the transmission roller drives the first fixed rod and the second fixed rod to rotate. The rotation of the first fixed rod and the second fixed rod drives the stirring rod and the scraper to rotate, thereby achieving the effect of stirring the middle and bottom of the melting tank. This solves the problem of uneven composition of the material in the melting tank due to the difficulty in fully stirring the middle and bottom, and improves the compositional uniformity of the master alloy block.

[0024] 2. In this utility model, the push frame pushes the notch frame to make the pulley slide within the groove of the pad, thereby pushing the fixed plate to drive the push rod to slide into the molding cavity. At the same time, the push plate slides inside the molding cavity and the spring is compressed, thereby achieving the effect of pushing and unloading the master alloy block inside the molding cavity. This solves the problem that the master alloy block is difficult to remove from the molding cavity after cooling and forming, and improves production efficiency. Attached Figure Description

[0025] Figure 1 is a three-dimensional schematic diagram of a master alloy block smelting furnace proposed in this utility model;

[0026] Figure 2 is a schematic diagram of the charging frame structure of a master alloy block smelting furnace proposed in this utility model;

[0027] Figure 3 is a schematic cross-sectional view of the melting tank of a master alloy block smelting furnace proposed in this utility model.

[0028] Figure 4 is a schematic diagram of the push rod structure of a master alloy block smelting furnace proposed in this utility model;

[0029] Figure 5 is an enlarged view of point A in Figure 4.

[0030] Legend:

[0031] 1. Pad; 2. Support frame; 3. Melting tank; 4. Shaping cavity; 5. Conveying pipe; 6. Control valve; 7. Feeding frame; 8. Motor; 9. Vacuum pump; 10. Drive roller; 11. Fixed rod one; 12. Stirring rod; 13. Fixed rod two; 14. Scraper; 15. Sealing door; 16. Push rod; 17. Spring; 18. Fixed plate; 19. Pulley; 20. Notch frame; 21. Push frame; 22. Push plate. Detailed Implementation

[0032] 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.

[0033] Referring to Figures 1-5, one embodiment of this utility model provides a master alloy block smelting furnace, including a base plate 1 for supporting the overall equipment and maintaining stability. A support frame 2 is fixedly connected to the top of the base plate 1 for fixing a melting tank 3 and providing structural support. The melting tank 3 is fixedly connected inside the support frame 2 for containing and smelting metal raw materials. A feeding frame 7 is fixedly connected to the top of the melting tank 3 for facilitating the addition of raw materials and preventing external impurities from entering. A vacuum pump 9 is installed at the top of the melting tank 3 for vacuum pumping. To reduce oxidation during the smelting process, a motor 8 is fixedly connected to the top of the molten tank 3. The motor 8 provides power to drive the stirring mechanism. A transmission roller 10 is fixedly connected to the output end of the motor 8. The transmission roller 10 transmits the rotational power of the motor 8 to the stirring assembly. A fixing rod 11 is fixedly connected to the outer wall of the transmission roller 10. The fixing rod 11 is used to fix the stirring rod 12 and enhance the stirring range. A fixing rod 23 is fixedly connected to the outer wall of the transmission roller 10. The fixing rod 23 is used to connect the scraper 14 and expand the stirring coverage area. A stirring assembly is provided on the outer wall of the fixing rod 23.

[0034] The stirring assembly includes a stirring rod 12 and a scraper 14. The stirring rod 12 is used to stir the molten metal in the middle of the melting tank 3 to improve the uniformity of the composition. One end of the stirring rod 12 is fixedly connected to the top of the second fixed rod 13, and the other end of the stirring rod 12 is fixedly connected to the bottom of the first fixed rod 11. The scraper 14 is used to scrape off the metal deposited at the bottom of the melting tank 3 and prevent agglomeration. The top of the scraper 14 is fixedly connected to the bottom of the second fixed rod 13, and the bottom of the scraper 14 is slidably connected to the inner wall of the melting tank 3. A shaping cavity 4 is fixedly connected to the top of the pad plate 1. The shaping cavity 4 is used to cool and form the master alloy block and maintain its shape stability. A pushing assembly is provided inside the shaping cavity 4.

[0035] Referring to Figures 1-5, a conveying pipe 5 is fixedly connected to the outer wall of the melting tank 3. The conveying pipe 5 is used to transport molten metal from the melting tank 3 to the shaping cavity 4 to complete the casting. One end of the conveying pipe 5 is fixedly connected to the inside of the shaping cavity 4. A control valve 6 is provided on the outer wall of the conveying pipe 5. The control valve 6 is used to adjust the flow rate and casting speed of the molten metal. A sealing door 15 is slidably connected inside the shaping cavity 4. The sealing door 15 is used to seal the shaping cavity 4 to prevent heat loss and oxidation. The pushing assembly includes a push plate 22 and a push rod 16. The push plate 22 is used to push the cooled and formed master alloy block out of the shaping cavity 4 to complete the unloading. The push plate 22 is slidably connected inside the shaping cavity 4. The push rod 16 is used to transmit the pushing force to drive the push plate 22 to move. One end of the push rod 16 is fixedly connected to the side wall of the push plate 22, and the push rod 16 is slidably connected inside the shaping cavity 4. The other end of the push rod 16 is fixedly connected to the side wall of the push plate 22. A push frame 21 is fixedly connected to the push rod 16. The push frame 21 is used to receive external driving force and drive the push rod 16 to move. A fixed plate 18 is fixedly connected to the outer wall of the push rod 16. The fixed plate 18 is used to fix the spring 17 and provide support. A notch frame 20 is fixedly connected to the outer wall of the push rod 16. The notch frame 20 is used to install the pulley 19 and limit its movement trajectory. The pulley 19 is rotatably connected inside the notch frame 20. The pulley 19 is used to roll in the groove of the pad 1 to achieve smooth pushing. The side wall of the notch frame 20 is fixedly connected to the side wall of the fixed plate 18. A spring 17 is sleeved on the outer wall of the push rod 16. The spring 17 is used to provide a reset elastic force to make the pushing component automatically return to its position. One end of the spring 17 is fixedly connected to the outer wall of the shaping cavity 4, and the other end of the spring 17 is fixedly connected to the side wall of the fixed plate 18. A groove is opened on the top of the pad 1, and the pulley 19 is slidably connected inside the groove.

[0036] Working principle: When producing master alloy blocks using a smelting furnace, the master alloy raw material to be melted is placed inside the melting tank 3. After the raw material melts, the output of the starting motor 8 drives the transmission roller 10 to rotate. The rotation of the transmission roller 10 drives the fixed rod 11 and the fixed rod 13 to rotate. The rotation of the fixed rod 11 and the fixed rod 13 synchronously drives the stirring rod 12 and the scraper 14 to rotate inside the melting tank 3. The stirring rod 12 stirs in the middle of the melting tank 3, and the scraper 14 stirs at the bottom of the melting tank 3, thereby achieving the purpose of uniformly mixing the molten material inside the melting tank 3. Then, the molten metal is introduced through the control valve 6. The material is conveyed through the conveying pipe 5 to the shaping cavity 4 for cooling and shaping. After cooling and shaping, the push frame 21 is pushed to move the fixed plate 18 and the notch frame 20. The movement of the fixed plate 18 and the notch frame 20 causes the push rod 16 to slide into the shaping cavity 4. At the same time, the pulley 19 inside the notch frame 20 slides in the groove on the top of the pad 1. The movement of the push rod 16 pushes the push plate 22 inside the shaping cavity 4 to slide inside it. At the same time, the spring 17 is compressed, and the sealing door 15 is opened before pushing, thereby achieving the purpose of pushing and unloading the master alloy block. Then, the spring 17 releases the elastic force to reset the push plate 22, thus preparing for subsequent unloading.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A furnace for smelting master alloy blocks, comprising a pad plate (1), characterized in that: A support frame (2) is fixedly connected to the top of the pad (1). A melting tank (3) is fixedly connected inside the support frame (2). A feeding frame (7) is fixedly connected to the top of the melting tank (3). A vacuum pump (9) is installed on the top of the melting tank (3). A motor (8) is fixedly connected to the top of the melting tank (3). A transmission roller (10) is fixedly connected to the output end of the motor (8). A fixing rod (11) is fixedly connected to the outer wall of the transmission roller (10). A fixing rod (13) is fixedly connected to the outer wall of the transmission roller (10). 3) An agitation assembly is provided on the outer wall; the agitation assembly includes an agitator (12) and a scraper (14). One end of the agitator (12) is fixedly connected to the top of the second fixed rod (13), and the other end of the agitator (12) is fixedly connected to the bottom of the first fixed rod (11). The top of the scraper (14) is fixedly connected to the bottom of the second fixed rod (13), and the bottom of the scraper (14) is slidably connected to the inner wall of the melting tank (3). A shaping cavity (4) is fixedly connected to the top of the pad (1), and a pushing assembly is provided inside the shaping cavity (4).

2. The master alloy block smelting furnace according to claim 1, characterized in that: The outer wall of the melting tank (3) is fixedly connected to a conveying pipe (5), one end of which is fixedly connected to the inside of the shaping cavity (4). A control valve (6) is provided on the outer wall of the conveying pipe (5), and a sealing door (15) is slidably connected inside the shaping cavity (4).

3. The master alloy block smelting furnace according to claim 1, characterized in that: The pushing component includes a push plate (22) and a push rod (16). The push plate (22) is slidably connected inside the shaping cavity (4), and one end of the push rod (16) is fixedly connected to the side wall of the push plate (22).

4. The master alloy block smelting furnace according to claim 3, characterized in that: The push rod (16) is slidably connected inside the shaping cavity (4), and the other end of the push rod (16) is fixedly connected to the push frame (21).

5. The master alloy block smelting furnace according to claim 4, characterized in that: The outer wall of the push rod (16) is fixedly connected to a fixed plate (18), and the outer wall of the push rod (16) is fixedly connected to a notch frame (20).

6. The master alloy block smelting furnace according to claim 5, characterized in that: The notch frame (20) is rotatably connected to a pulley (19), and the side wall of the notch frame (20) is fixedly connected to the side wall of the fixed plate (18).

7. The master alloy block smelting furnace according to claim 6, characterized in that: A spring (17) is sleeved on the outer wall of the push rod (16). One end of the spring (17) is fixedly connected to the outer wall of the shaping cavity (4), and the other end of the spring (17) is fixedly connected to the side wall of the fixed plate (18).

8. The master alloy block smelting furnace according to claim 1, characterized in that: The top of the pad (1) is provided with a groove, and the pulley (19) is slidably connected inside the groove.

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