Mixing device used before tantalum-niobium alloy smelting

Abstract

The utility model discloses a material mixing device before tantalum-niobium alloy smelting, which comprises a material mixing cylinder and a support frame for supporting the material mixing cylinder, the material mixing cylinder is also provided with a feed port and a discharge port, a secondary material mixing mechanism is arranged at the discharge port, and the secondary material mixing mechanism discharges materials in the material mixing process. The secondary material mixing mechanism is a material mixing pipe which is horizontally, obliquely and rotationally connected to the material outlet, and stirring blades are arranged on the inner wall of the material mixing pipe at intervals in the circumferential direction. The secondary mixing mechanism is arranged at the discharge port of the mixer, materials discharged from the mixer can be mixed again through the secondary mixing mechanism so as to solve the influence of fluidity and density difference in the discharging process, and the materials are discharged in the secondary mixing process, so that the materials discharged through secondary mixing are mixed materials, and the mixing efficiency is improved. And the problems that the density difference influence is caused when the alloy flows and is discharged again after secondary mixing, and the performance of the alloy is unbalanced after smelting are solved.

Description

Technical Field

[0001] The present application relates to the technical field of alloy metal raw material mixing, and in particular to a material mixing device before smelting tantalum-niobium alloy. Background Art

[0002] Alloy is a solid product with metallic properties obtained by mixing and melting two or more metals and metals or non-metals, cooling and solidifying. According to the number of components, alloys can be divided into binary alloys, ternary alloys and multi-element alloys. Due to the excellent properties of combining two or more elements, alloy metals have better properties than single metal products. For example, they can be formed with good mechanical properties and heat resistance, and are widely used in aerospace, automobile manufacturing and other fields; they have corrosion resistance and are suitable for chemical, marine engineering and other environments; they have good electrical conductivity and are often used in electronics, electrical appliances and other industries; they have good magnetic properties and are suitable for magnetic heads, magnetic cores and other fields.

[0003] At present, when manufacturing alloy products, just like a single metal, it is necessary to melt and form an ingot, and then the ingot is further machined to form an alloy product. When a single product is smelted, the raw materials can be directly added to the smelting furnace for smelting, while the raw materials of alloy metals usually need to be fully mixed with two or more metal raw materials before smelting. The fully mixed raw materials make the distribution of multiple elements in the smelted ingot more uniform, improving the consistency of the alloy product. At present, straight barrels (attached to the instruction manual) are used. Figure 1-2 As shown), V-shaped cylinder or three-dimensional cylinder to fully mix various raw materials.

[0004] At present, after using different mixers to mix various alloy raw materials, during the discharging process, due to the different densities of different alloy raw materials (such as the density of tantalum is 16.6g / cm 3 The density of niobium is 8.57 g / cm 3 ),like Figure 3 As shown, tantalum with a higher density will flow out earlier below niobium when flowing (a is tantalum and b is niobium in the figure). As a result, tantalum will account for a larger proportion in the material discharged first, while niobium will account for a larger proportion in the material discharged later. In the subsequent smelting process, the performance of the upper and lower sides of the ingot will be inconsistent, affecting the quality of subsequent alloy products. Summary of the invention

[0005] In view of the above-mentioned problems, the present application aims to provide a mixing device before smelting of tantalum-niobium alloy, which remixes the materials discharged from the mixer to solve the influence of fluidity and density differences during the discharge process, and the problem of uneven performance of the alloy after smelting.

[0006] To achieve the above object, the technical solution adopted in this application is as follows: A mixing device before tantalum-niobium alloy melting includes a mixing cylinder and a support frame for supporting the mixing cylinder. The mixing cylinder also has a feed inlet and a discharge outlet, and is characterized in that a secondary mixing mechanism is provided at the discharge outlet, and the secondary mixing mechanism discharges the material during the mixing process.

[0007] Preferably, the secondary mixing mechanism is a mixing pipe horizontally and obliquely rotatably connected to the discharge outlet, and a rotating bracket for supporting the rotation of the mixing pipe is provided on the support frame.

[0008] Preferably, stirring blades are arranged along the circumferential spacing on the inner wall of the mixing pipe.

[0009] Preferably, the mixing cylinder is slidably arranged up and down on the support frame.

[0010] The beneficial effect of this application is that a secondary mixing mechanism is provided at the discharge outlet of the mixer. Through this secondary mixing mechanism, the materials discharged from the mixer can be remixed to solve the influence of fluidity and density difference during the discharge process. And discharging the material during the secondary mixing process makes the material discharged after the secondary mixing be the mixed material, avoiding the influence of density difference when flowing out again after the secondary mixing and the problem of uneven performance of the alloy after melting. Description of the Drawings

[0011] Figure 1 It is a diagram of a straight-tube mixer.

[0012] Figure 2 It is Figure 1 A diagram of the internal structure.

[0013] Figure 3 It is a diagram of the flow difference caused by the discharge of metal raw materials with different densities.

[0014] Figure 4 It is a diagram of the structure of the secondary mixing mechanism provided in this application.

[0015] Figure 5 It is a diagram of the internal structure of the mixing pipe in this application.

[0016] Figure 6 It is a diagram of the secondary mixing of the internal material when the mixing pipe in this application rotates.

[0017] Figure 7 It is a diagram of the influence of material density difference still existing when the mixing pipe in this application discharges materials.

[0018] Figure 8 It is a diagram of the process of the mixing pipe in this application gradually moving up as the material is discharged and piled up. Detailed Embodiment

[0019] To enable those of ordinary skill in the art to better understand the technical solution of this application, the technical solution of this application will be further described below in conjunction with the accompanying drawings and embodiments.

[0020] Referring to the Figures 1 to 8 A premixing device for tantalum-niobium alloy before melting, as shown, includes a mixing cylinder 1 and a support frame 2 for supporting the mixing cylinder 1. The mixing cylinder 1 also has a feed inlet 1a and a discharge outlet 1b. When mixing multiple metals, the designed amount of raw materials is added from the feed inlet 1a, and then discharged through the discharge outlet 1b after being fully mixed in the mixing cylinder 1. The mixing can also be carried out using a V-type mixer or a three-dimensional mixer for the mixing operation of the raw materials.

[0021] To solve the problem that due to the density difference of different raw materials during the discharging process and the influence of the fluidity of the discharged materials, the proportion of individual raw materials at different positions of the entire discharged materials is different, as Figure 4 shown, a secondary mixing mechanism is provided at the discharge outlet 1b, and the secondary mixing mechanism discharges the materials during the mixing process. Through this secondary mixing mechanism, the materials discharged from the mixer can be mixed again to solve the influence of fluidity and density difference during the discharging process, and the materials are discharged during the secondary mixing process, so that the materials discharged after secondary mixing are the mixed materials, avoiding the influence of density difference when flowing out again after secondary mixing.

[0022] Specifically, as Figure 4 shown, the secondary mixing mechanism is a mixing pipe 3 horizontally and obliquely rotatably connected to the discharge outlet 1b. When the materials are mixed by the mixing cylinder 1 and discharged through the discharge outlet 1b as described above, the materials are discharged into the mixing pipe 3, and through the rotation of the mixing pipe 3 ( Figure 4 as indicated by the arrow in the figure), continuous mixing of the discharged materials is carried out during the discharging process, and at the same time, the mixing pipe 3 arranged obliquely discharges by itself, thereby improving the full mixing of the discharged materials, and further improving the performance consistency of the alloy after melting.

[0023] To facilitate the inclination and rotational support of the mixing pipe 3, as Figure 4 shown, a rotating bracket 4 for supporting the rotation of the mixing pipe 3 is provided on the support frame 2. The rotating bracket 4 realizes the stable support for the inclination and rotation of the mixing pipe 3 through the fixed connection with the support frame 2, and the mixing pipe 3 is passed through the rotating bracket 4, and auxiliary components such as bearings are also provided. And to facilitate the continuous and uniform rotation of the mixing pipe 3, a driving motor can also be provided on the support frame 2, and a belt and pulley are used to drive the uniform and continuous rotation of the mixing pipe 3.

[0024] To further improve the mixing degree of the secondary mixing, as Figures 5-6As shown, stirring blades 31 are circumferentially spaced along the inner wall of the mixing tube 3. During the rotation of the mixing tube 3, the materials are sufficiently stirred again by the stirring blades 31 so that the materials discharged from the port of the mixing tube 3 can achieve sufficient mixing property.

[0025] During the process of discharging the secondarily mixed materials through the mixing tube 3, the materials will form a gradually increasing stacking height, and thus it will also cause relatively large free fluidity of the materials ( Figure 7 as shown), and different proportions due to different densities. Therefore, to solve this problem, as Figure 8 shown, the mixing cylinder 1 is slidably arranged up and down on the support frame 2 (preferably driven to move up and down through a sliding guide rail), and at the same time, preferably, accessories such as the rotation drive motor of the mixing tube 3 can be integrally moved up and down through the sliding guide rail (not shown in the figure) arranged on the support frame 2. During the discharging process, as Figure 8 shown, the discharged materials are always in contact with the already stacked materials, so that the mixed materials will not freely fall suspended in the air, and the problem of inconsistent proportions at different stacking places due to different densities is avoided, ensuring that the materials still have a high mixing property after being discharged.

[0026] The principle of this application is: when mixing two or more raw materials, the materials with calculated weights are all added through the feed port 1a, and then are sufficiently mixed in the mixing cylinder 1 and discharged through the discharge port 1b. When the mixed materials are discharged from the discharge port 1b into the mixing tube 3, through the rotation of the mixing tube 3, continuous mixing of the discharged materials during the discharging process is carried out, and at the same time, the mixing tube 3 arranged obliquely discharges by itself. During the continuous discharging process, the mixing cylinder 1 and the mixing tube 3 move up synchronously on the support frame 2, resulting in continuous stacking of the discharged materials, and the materials discharged from the mixing tube 3 are in contact with the already discharged materials, avoiding the problem of uneven proportions of the materials caused by free flow during suspended discharging, and improving the uniformity of mixing of metal raw materials with different densities.

[0027] The above shows and describes the basic principle, main features and advantages of this application. Without departing from the spirit and scope of this application, this application will have various changes and improvements, and these changes and improvements all fall within the scope of this application claimed.

Claims

1. A mixing device before smelting a tantalum-niobium alloy, comprising a mixing cylinder (1) and a support frame (2) supporting the mixing cylinder (1), wherein the mixing cylinder (1) further comprises a feed port (1a) and a discharge port (1b), and is characterized in that: A secondary mixing mechanism is provided at the material outlet (1b), and the secondary mixing mechanism discharges the material during the mixing process; The secondary mixing mechanism is a mixing pipe (3) connected to the discharge port (1b) in a horizontally obliquely rotatable manner, and a rotating bracket (4) for supporting the mixing pipe (3) to rotate is arranged on the support frame (2); Stirring blades (31) are arranged at circumferential intervals on the inner wall of the mixing tube (3).

2. The mixing device according to claim 1, characterized in that: The mixing cylinder (1) is slidably arranged on the support frame (2) up and down.

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