Smelting stirring device for refractory metal production

Abstract

The utility model discloses a smelting stirring device for refractory metal preparation, including smelting furnace and electromagnetic coil, the electromagnetic coil is set in the outside of smelting furnace, and the inside and the outside of electromagnetic coil all are equipped with heat -proof cover, and the both ends of heat -proof cover are installed with heat -proof end plate, and the heat -proof cover on the outside is installed with fixed ring, and the outer ring surface of fixed ring is installed with a plurality of connecting seat, and the steel wire rope is installed on connecting seat, and the arc -shaped support is installed on steel wire rope, and the drive mechanism that drives electromagnetic coil to lift and transverse is installed on arc -shaped support. The utility model discloses simple structure, need not physical stirring, can carry out invisible and fast stirring operation, and electromagnetic coil has the function of lifting and transverse, need not to contact with high -temperature smelting furnace in the stage of metal melting, and through the cooling water of quick from electromagnetic coil can play the role of cooling, to ensure the safety of electromagnetic coil itself, greatly reduced the probability of damage.

Description

Technical Field

[0001] This utility model relates to the field of metal smelting technology, and specifically to a smelting and stirring device for the preparation of refractory metals. Background Technology

[0002] Metal smelting refers to the process of transforming metals or metal ores from a solid state to a liquid state through heating. However, it is not simply "melting"; it is usually a comprehensive process of refining, purifying, and alloying.

[0003] Currently, other materials are added during the metal smelting process; this process is called alloying. This is the foundation of modern materials science.

[0004] However, current furnaces have simple structures and lack stirring devices, which prevents the added materials from mixing quickly and evenly with the metal, affecting the quality of the smelting. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a smelting and stirring device for the preparation of refractory metals, which can perform invisible stirring and ensure the safety of the electromagnetic coil, so as to solve the problems mentioned in the background art.

[0006] This utility model is achieved through the following technical solution: a smelting and stirring device for preparing refractory metals, comprising a smelting furnace and an electromagnetic coil, wherein the electromagnetic coil is sleeved outside the smelting furnace, and heat insulation sleeves are provided on both the inner and outer sides of the electromagnetic coil, heat insulation end plates are installed at both ends of the heat insulation sleeves, a fixing ring is installed on the outer heat insulation sleeve, multiple connecting seats are installed on the outer ring surface of the fixing ring, steel wire ropes are installed on the connecting seats, arc-shaped brackets are installed on the steel wire ropes, and a drive mechanism for driving the electromagnetic coil to lift and move laterally is installed on the arc-shaped brackets.

[0007] As a preferred technical solution, the drive mechanism includes a traveling plate, a cross plate, and multiple high-temperature resistant cylinders. The cross plate is mounted on the moving platform of the traveling plate, the cylinder bodies of the high-temperature resistant cylinders are all mounted on the cross plate, and the piston rods of the high-temperature resistant cylinders are all fixedly connected to the cross plate through connecting flanges.

[0008] As a preferred technical solution, both the heat insulation sleeve and the heat insulation end plate are made of lightweight refractory bricks. The outer heat insulation sleeve has multiple through holes, and the two ends of the electromagnetic coil are respectively equipped with connecting pipes, which all pass through the through holes to communicate with the outside.

[0009] As a preferred technical solution, the electromagnetic coil is a hollow copper tube that is bent into a spiral shape.

[0010] As a preferred technical solution, the steel wire rope has three strands arranged in a triangular structure.

[0011] As a preferred technical solution, the arc-shaped bracket is designed with a "C"-shaped structure.

[0012] As a preferred technical solution, the high-temperature resistant cylinder is equipped with an external heat insulation layer, which is a ceramic fiber blanket.

[0013] The beneficial effects of this utility model are as follows: This utility model has a simple structure. After the electromagnetic coil is energized, the coil generates a traveling magnetic field. This magnetic field passes through the melting furnace and the heat insulation sleeve, and acts on the conductive molten metal, generating an induced current. The induced current interacts with the magnetic field to generate a Lorentz force. This force will push the molten iron to flow in a predetermined direction (such as rotation or reciprocating up and down), thereby achieving very intense and uniform stirring, increasing uniformity. In addition, the electromagnetic coil has the function of lifting and lateral movement. During the metal melting stage, it does not need to contact the high-temperature melting furnace. Furthermore, the cooling water that passes through the electromagnetic coil quickly can play a cooling role, ensuring the safety of the electromagnetic coil itself and greatly reducing the probability of damage. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of this utility model after the heat insulation end plate is removed;

[0017] Figure 3 This is a schematic diagram of the structure of the electromagnetic coil of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of this utility model after the smelting furnace is removed.

[0019] Among them, 1. Smelting furnace; 2. Heat insulation sleeve; 3. Heat insulation end plate; 4. Fixing ring; 5. Connecting pipe; 6. Connecting seat; 7. Steel wire rope; 8. Arc bracket; 9. High temperature resistant cylinder; 10. Crane; 11. Electromagnetic coil; 12. Horizontal plate. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0021] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0022] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a smelting and stirring device for preparing refractory metals according to this utility model includes a smelting furnace 1 and an electromagnetic coil 11. The electromagnetic coil 11 is sleeved on the outside of the smelting furnace 1. Both the inner and outer sides of the electromagnetic coil 11 are provided with heat insulation sleeves 2. Heat insulation end plates 3 are installed at both ends of the heat insulation sleeves 2. A fixing ring 4 is installed on the outer heat insulation sleeve 2. Multiple connecting seats 6 are installed on the outer ring surface of the fixing ring 4. Steel wire ropes 7 are installed on each connecting seat 6. Arc-shaped brackets 8 are installed on the steel wire ropes 7. A drive mechanism for driving the electromagnetic coil 11 to rise, fall and move laterally is installed on the arc-shaped brackets 8.

[0024] In this embodiment, the drive mechanism includes a traveling plate 10, a cross plate 12, and multiple high-temperature resistant cylinders 9. The cross plate 12 is mounted on the moving platform of the traveling plate 10, and the cylinder bodies of the high-temperature resistant cylinders 9 are all mounted on the cross plate 12. The piston rods of the high-temperature resistant cylinders 9 are all fixedly connected to the cross plate 12 through connecting flanges.

[0025] In this embodiment, both the heat insulation sleeve 2 and the heat insulation end plate 3 are made of lightweight refractory bricks. The outer heat insulation sleeve 2 is provided with multiple through holes. Connecting pipes 5 are installed at both ends of the electromagnetic coil 11. The connecting pipes 5 pass through the through holes and communicate with the outside. The connecting pipes are liquid inlet pipes and liquid outlet pipes, respectively, and are connected to a cooling water mechanism.

[0026] In this embodiment, the electromagnetic coil 11 is a hollow copper tube that is bent into a spiral shape.

[0027] In this embodiment, there are three steel wire ropes 7 arranged in a triangular structure. The three steel wire ropes arranged in a triangular structure ensure the stability of the descent and ascent processes and increase stability.

[0028] In this embodiment, the arc-shaped support 8 is arranged in a "C" shape, so that the top of the smelting furnace is in an open state, avoiding obstruction by the arc-shaped support and facilitating the addition of metals and other materials.

[0029] In this embodiment, a heat insulation layer is installed on the outside of the high-temperature resistant cylinder 9. The heat insulation layer is a ceramic fiber blanket, which can provide heat insulation protection for the high-temperature resistant cylinder.

[0030] Working principle: During the metal melting stage, the electromagnetic coil is raised and moved horizontally to avoid contact with the melting furnace. After melting is completed and other materials are added, the entire electromagnetic coil is moved horizontally to directly above the melting furnace by the lateral movement of the crane. Then, the piston rod of the high-temperature resistant cylinder extends downward, pushing the horizontal plate, the arc-shaped support and the entire electromagnetic coil assembly suspended by steel wire rope to descend smoothly.

[0031] Three steel wire ropes arranged in a triangle ensured the stability of the descent process without swaying or twisting, allowing the electromagnetic coil and its inner and outer heat insulation sleeves to be precisely fitted onto the outside of the smelting furnace. The electromagnetic coil maintained a uniform gap with the furnace wall, and the heat insulation end plates formed the upper and lower end caps, which together with the inner and outer heat insulation sleeves constituted a complete heat insulation protection cavity.

[0032] In operation, the electromagnetic coil is energized. Once energized, the coil, which is essentially a hollow copper tube, generates a traveling magnetic field in a specific direction. This magnetic field penetrates the insulation jacket and the furnace wall, acting on the conductive molten refractory metal inside. According to the law of electromagnetic induction, the changing magnetic field induces eddy currents within the melt. These induced currents interact with the magnetic field, generating a powerful Lorentz force. This Lorentz force becomes the driving force propelling the melt in a predetermined direction, such as rotation or vigorous up-and-down reciprocating flow. This achieves a level of uniform mixing far exceeding that of mechanical stirring, and since no parts come into contact with the high-temperature melt, contamination is avoided.

[0033] While the magnetic field is generated by the power supply, the external cooling system is activated. Cooling water, such as deionized water, is injected into the hollow electromagnetic coil from one end of the connecting pipe (inlet pipe) under the drive of the high-pressure pump. It flows through the entire spiral pipe and is discharged from the other end of the connecting pipe (outlet pipe). The water flow continuously carries away a large amount of Joule heat generated by the coil due to its own resistance and proximity effect, as well as the residual heat radiated from the melting furnace through the heat insulation jacket. This ensures that the coil is always maintained within the safe operating temperature range of its material, and that its electrical performance does not degrade or burn out.

[0034] During this stage, the inner and outer heat insulation sleeves and end plates, constructed of lightweight refractory bricks, play a crucial role. They significantly block radiant heat from the smelting furnace to the external space, providing a primary thermal barrier for the electromagnetic coils and reducing the load on the cooling system. They also protect the outer metal structures, such as the wire ropes and fixing rings, preventing their mechanical properties from deteriorating due to high temperatures. Simultaneously, the ceramic fiber blanket insulation layer on the outside of the high-temperature resistant cylinder protects it from damage by rising hot air.

[0035] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A smelting and stirring apparatus for preparing refractory metals, characterized in that: The system includes a smelting furnace (1) and an electromagnetic coil (11). The electromagnetic coil (11) is fitted around the outside of the smelting furnace (1). The inner and outer sides of the electromagnetic coil (11) are provided with heat insulation sleeves (2). Heat insulation end plates (3) are installed at both ends of the heat insulation sleeves (2). A fixing ring (4) is installed on the outer heat insulation sleeve (2). Multiple connecting seats (6) are installed on the outer ring surface of the fixing ring (4). Steel wire ropes (7) are installed on each connecting seat (6). Arc-shaped brackets (8) are installed on the steel wire ropes (7). A drive mechanism for driving the electromagnetic coil (11) to rise, fall, and move laterally is installed on the arc-shaped brackets (8).

2. The smelting and stirring apparatus for preparing refractory metals according to claim 1, characterized in that: The drive mechanism includes a trolley (10), a cross plate (12), and multiple high-temperature resistant cylinders (9). The cross plate (12) is mounted on the moving platform of the trolley (10). The cylinder bodies of the high-temperature resistant cylinders (9) are all mounted on the cross plate (12). The piston rods of the high-temperature resistant cylinders (9) are all fixedly connected to the cross plate (12) through connecting flanges.

3. The smelting and stirring apparatus for preparing refractory metals according to claim 1, characterized in that: The heat insulation sleeve (2) and the heat insulation end plate (3) are both made of lightweight refractory bricks. The outer heat insulation sleeve (2) has multiple through holes. The two ends of the electromagnetic coil (11) are respectively equipped with connecting pipes (5), and the connecting pipes (5) pass through the through holes to communicate with the outside.

4. The smelting and stirring apparatus for preparing refractory metals according to claim 1, characterized in that: The electromagnetic coil (11) is a hollow copper tube that is bent into a spiral shape.

5. The smelting and stirring apparatus for preparing refractory metals according to claim 1, characterized in that: The steel wire rope (7) has three strands, which are distributed in a triangular structure.

6. The smelting and stirring apparatus for preparing refractory metals according to claim 1, characterized in that: The arc-shaped bracket (8) is set in a "C" shape.

7. The smelting and stirring apparatus for preparing refractory metals according to claim 2, characterized in that: The high-temperature resistant cylinder (9) is equipped with an external heat insulation layer, which is a ceramic fiber blanket.

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