Mixing device for titanium alloy fine powder production

Abstract

The utility model discloses a kind of titanium alloy fine powder production is with mixing device, it is related to fine powder mixing device technical field.The utility model includes gas mixing chamber, multi-section roller mixing assembly and fine powder collection tank, four root inlet pipes are evenly connected on the one week side wall of gas mixing chamber, manual valve is equipped on inlet pipe, discharge branch pipe is equipped on inlet pipe in manual valve outward position, the outside end of inlet pipe is gas blowing port, the discharge pipe of gas mixing chamber bottom is connected by adapter pipe with the inlet port of first roller mixing assembly, the discharge port of last roller mixing assembly is connected by discharge connector and is inserted into the inlet insertion pipe on fine powder collection tank, and multi-section roller mixing assembly is set on the same straight line and downwardly.The utility model is blown into gas mixing chamber by gas mixing chamber to each material and is suspended mixed, then is tumbled and mixed by multiple roller mixing assembly, reduces friction mixing and is easy to pollute, solve the problem that the mixing uniformity of existing is not high, mixing process is easy to pollute etc.

Description

Technical Field

[0001] This utility model belongs to the technical field of fine powder mixing devices, and in particular relates to a mixing device for the production of titanium alloy fine powder. Background Technology

[0002] When mixing titanium alloy fine powder during production, it is crucial to control the uniformity of composition and process safety. The core issues are avoiding contamination, ensuring proper mixing, and preventing oxidation risks. However, these requirements are relatively difficult to meet. Furthermore, air ingress and residual metal components from friction with the mixing equipment can both contribute to impurities in the titanium alloy fine powder. Existing mixing equipment includes planetary ball mills, double-cone mixers, and V-type mixers. These methods are cumbersome, prone to impurities, and fail to achieve the required high-precision mixing uniformity. Utility Model Content

[0003] The purpose of this invention is to provide a mixing device for the production of titanium alloy fine powder. The device uses an air mixing chamber to blow air into the material for suspension mixing, and then uses multiple roller mixing components to tumble and mix the materials. This reduces friction and prevents contamination, thus solving the problems of low mixing uniformity and easy contamination in existing mixing processes.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model relates to a mixing device for producing titanium alloy fine powder, comprising an air mixing chamber, a multi-section drum mixing assembly, and a fine powder collection box. Four feed pipes are evenly distributed along the circumference of the side wall of the air mixing chamber. Each feed pipe is equipped with a manual valve, and a discharge branch pipe is located outward from the manual valve. The outer end of each feed pipe is an air inlet. The discharge pipe at the bottom of the air mixing chamber is connected to the feed port of the first drum mixing assembly via a connecting pipe. Multiple drum mixing assemblies are sequentially connected. The discharge port of the last drum mixing assembly is connected to the feed insertion pipe on the cover of the fine powder collection box via a discharge pipe. The cover of the fine powder collection box is equipped with a gas recovery pipe containing fine powder filter cotton. The multiple drum mixing assemblies are arranged in a straight line and facing downwards.

[0006] The present invention is further configured such that the gas mixing chamber includes an upper cylindrical chamber and a lower conical chamber, and four feed pipes are arranged around the middle of the cylindrical chamber.

[0007] The present invention is further configured such that the roller mixing assembly includes a roller, a roller frame and a drive assembly, a driven gear belt is provided on the outer wall of the top position of the roller, bearings are sleeved near both ends of the roller, the bearings are mounted on the roller frame, a servo motor is embedded in one end of the roller frame near the top position of the roller, a drive gear disk is sleeved on the shaft of the servo motor, and the drive gear disk meshes with the driven gear belt.

[0008] The present invention is further configured such that there are two roller mixing assemblies, and the servo motors in the two roller mixing assemblies rotate in opposite directions.

[0009] The present invention is further configured such that the rollers gradually taper from the top to the bottom, and the bottom end of the first roller rotates and inserts into the top end of the second roller.

[0010] The present invention is further configured such that the roller is inclined downward at a 30-45° angle from the top to the bottom.

[0011] This utility model has the following beneficial effects:

[0012] 1. In this invention, each material is quantitatively and at a constant speed blown into the air mixing chamber by air blowing. The raw materials are suspended in the air mixing chamber for floating and mixing, resulting in high mixing uniformity. Then, the materials flow downward with the airflow. The inert gas can also protect the raw materials. After the fine powder raw materials are mixed, they enter the drum. Due to the large inner diameter of the drum, the airflow is small in the drum, and the fine powder will fall onto the inner wall of the drum. It will tumble on the rotating drum and be layered and covered for better mixing effect, less friction, and no impurities.

[0013] 2. In this invention, multiple rollers rotate in opposite directions, achieving forward tumbling and mixing, followed by reverse tumbling and mixing, which further improves the uniformity of mixing.

[0014] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.

[0016] Figure 1 This is a schematic diagram of a mixing device for producing titanium alloy fine powder.

[0017] Figure 2 This is a schematic diagram of the exploded structure of a mixing device for producing titanium alloy fine powder.

[0018] Figure 3 This is a schematic diagram of the gas mixing chamber.

[0019] Figure 4 This is a schematic diagram of the drum structure.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Gas mixing chamber; 11. Cylindrical chamber; 12. Conical chamber; 13. Feed pipe; 131. Manual valve; 132. Air blowing port; 14. Discharge branch pipe; 2. Connecting pipe; 3. Roller; 30. Bearing; 4. Roller frame; 41. Drive gear disk; 411. Servo motor; 5. Discharge connecting pipe; 6. Fine powder collection box; 61. Feed insertion pipe; 62. Gas recovery pipe. Detailed Implementation

[0022] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-4 This utility model is a mixing device for producing titanium alloy fine powder, including an air mixing chamber 1, a multi-section drum mixing assembly, and a fine powder collection box 6. Four feed pipes 13 are evenly distributed along the side wall of the air mixing chamber 1. Each feed pipe 13 is equipped with a manual valve 131. A discharge branch pipe 14 is located on the feed pipe 13 at the position outward from the manual valve 131. The outer end of the feed pipe 13 is an air blowing port 132. The discharge pipe at the bottom of the air mixing chamber 1 is connected to the feed port of the first drum mixing assembly via a connecting pipe 2. Multiple drum mixing assemblies are sequentially connected. The discharge port of the last drum mixing assembly is connected to the feed insertion pipe 61 on the cover of the fine powder collection box 6 via a discharge pipe 5. The cover of the fine powder collection box 6 is equipped with a gas recovery pipe 62, which contains fine powder filter cotton. The multiple drum mixing assemblies are arranged in a straight line and facing downwards.

[0024] Multiple fine powder raw materials are placed into a sealed tank, through which inert gas is introduced. A conveying auger then quantitatively conveys the raw materials from the discharge branch pipe 14 at the bottom discharge position. Inert gas is then blown in through the air inlet 132, propelling the fine powders into the air mixing chamber 1. Multiple fine powders enter the air mixing chamber 1 in proportion, achieving high mixing density. The powders then flow downwards with the airflow into the drum mixing assembly. Due to the weakening airflow, the fine powders fall onto the inner wall of the drum mixing assembly, where they are tumbled and mixed, achieving non-stirring mixing. The drum mixing assembly is positioned downwards to facilitate the downward flow of the fine powders. The manual valve 131 opens when fine powders need to pass through; it remains closed if no fine powder is flowing through the inlet pipe 13.

[0025] The gas mixing chamber 1 includes an upper cylindrical chamber 11 and a lower conical chamber 12, with four feed pipes 13 arranged around the middle of the cylindrical chamber 11.

[0026] The fine powder remains suspended in the cylindrical chamber 11 for a relatively long time (possibly 5-10 seconds). Upon reaching the conical chamber 12, it flows downwards into the connecting pipe 2, which is inserted into the top of the drum 3 (rotatingly connected to the drum 3). The gas discharged from the gas recovery pipe 62 is recycled for reuse.

[0027] The roller mixing assembly includes a roller 3, a roller frame 4, and a drive assembly. A driven gear belt 31 is provided on the outer wall of the top position of the roller 3. Bearings 30 are fitted on both ends of the roller 3. The bearings 30 are mounted on the roller frame 4. A servo motor 411 is embedded in one end of the roller frame 4 near the top position of the roller 3. A drive gear disk 41 is fitted on the shaft of the servo motor 411. The drive gear disk 41 meshes with the driven gear belt 31.

[0028] The drum 3 is driven to rotate, which tumbles and mixes the fine powder, achieving secondary mixing. This reduces the error that may occur at the time point when the initial raw material input ratio is reduced, and also achieves the purpose of reducing friction and mixing.

[0029] There are two roller mixing components, and the servo motors 411 in the two roller mixing components rotate in opposite directions. The rollers tumble and mix once in each direction, greatly increasing the mixing uniformity.

[0030] The rollers 3 gradually taper from top to bottom, and the bottom end of the first roller 3 rotates to insert into the top end of the second roller 3. The purpose of tapering is to facilitate the insertion and docking of the two rollers, while the gradual tapering does not affect the downward movement of the fine powder.

[0031] The roller 3 is inclined downwards at a 30-45° angle from the top to the bottom. This ensures that the roller does not slide down too quickly, thus increasing the tumbling effect.

[0032] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A mixing device for producing titanium alloy fine powder, characterized in that: The system includes an air mixing chamber (1), a multi-section drum mixing assembly, and a fine powder collection box (6). Four feed pipes (13) are evenly distributed along the side wall of the air mixing chamber (1). Each feed pipe (13) is equipped with a manual valve (131). A discharge branch pipe (14) is located on the feed pipe (13) at the position outward from the manual valve (131). The outer end of the feed pipe (13) is an air inlet (132). The discharge pipe at the bottom of the air mixing chamber (1) is connected to the system via a connecting pipe (2). The feed port of the first roller mixing assembly is inserted, and multiple roller mixing assemblies are inserted sequentially. The discharge port of the last roller mixing assembly is connected to the feed pipe (61) on the cover of the fine powder collection box (6) through the feed pipe (5). The cover of the fine powder collection box (6) is provided with a gas recovery pipe (62), and fine powder filter cotton is provided in the gas recovery pipe (62). Multiple roller mixing assemblies are arranged on the same straight line and facing downward.

2. The mixing device for producing titanium alloy fine powder according to claim 1, characterized in that, The gas mixing chamber (1) includes an upper cylindrical chamber (11) and a lower conical chamber (12), and four feed pipes (13) are arranged around the middle of the cylindrical chamber (11).

3. The mixing device for producing titanium alloy fine powder according to claim 1, characterized in that, The roller mixing assembly includes a roller (3), a roller frame (4), and a drive assembly. A driven gear belt (31) is provided on the outer wall of the top position of the roller (3). Bearings (30) are fitted on both ends of the roller (3). The bearings (30) are mounted on the roller frame (4). A servo motor (411) is embedded in one end of the roller frame (4) near the top position of the roller (3). A drive gear disk (41) is fitted on the shaft of the servo motor (411). The drive gear disk (41) meshes with the driven gear belt (31).

4. The mixing device for producing titanium alloy fine powder according to claim 3, characterized in that, There are two roller mixing assemblies, and the servo motors (411) in the two roller mixing assemblies rotate in opposite directions.

5. A mixing device for producing titanium alloy fine powder according to claim 4, characterized in that, The roller (3) gradually tapers from top to bottom, and the bottom end of the first roller (3) rotates and inserts into the top end of the second roller (3).

6. A mixing device for producing titanium alloy fine powder according to claim 3, characterized in that, The roller (3) is inclined downwards at a 30-45° angle from the top to the bottom.

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