Phosphorus-containing alloy material preparation device

Abstract

The utility model provides a phosphorus-containing alloy material preparation device, and belongs to the technical field of alloy smelting. The device comprises a furnace body, a molten metal feeder is arranged at the top of the furnace body, a heating base plate is arranged at the bottom of the furnace body, a phosphorus source feeding port is formed in the side wall of the furnace body, and the position of the phosphorus source feeding port corresponds to the position of the heating base plate. In a sealed container, a metal material is sprayed from the top of the container through a small hole or is input into the container in a liquid drop shape after being molten, phosphorus steam generated by heating phosphorus is arranged at the bottom of the container, and the phosphorus steam is liquefied in a high-temperature and high-pressure environment and is more fully mixed and reacted with molten metal liquid drops. The mixing mode can ensure that the phosphorus element and the metal element are fully mixed, so that the content accuracy of the phosphorus in the tin-phosphorus alloy is improved, and the content of the phosphorus is closer to the expected content.

Description

Technical Field

[0001] The utility model belongs to the technical field of alloy smelting, and in particular relates to a device for preparing phosphorus-containing alloy materials. Background Art

[0002] Currently, phosphorus-containing alloys are typically prepared by placing a phosphorus source and a pure metal raw material in a sealed furnace, heating them to melt both materials, and then stirring them to allow the phosphorus and metal elements to react. For example, tin-phosphorus alloys are primarily prepared by reacting tin with red phosphorus. For example, in Chinese patent CN 107012362A, "A Method for Preparing a Tin-Phosphorus Alloy," tin flakes, red phosphorus, and activated carbon are alternately laid down, smelted at 1500°C, and then cooled in stages. In contrast, in Chinese patent CN 110819845A, "A Method for Preparing a Tin-Phosphorus Anti-Oxidation Alloy," red phosphorus powder is sprinkled onto a tin block, which is then sealed with the tin block and smelted at 600-700°C. During the preparation process, if the seal is not tight or the reaction temperature is too high, phosphorus vapor will escape in large quantities, resulting in a phosphorus content in the tin-phosphorus alloy far below the desired level. The preparation of tin-phosphorus antioxidant alloys by reacting tin with red phosphorus is complex, time-consuming, and requires high initial material processing, making it difficult to adapt to the needs of industrial production. In particular, it is difficult to use this method to prepare high-phosphorus tin materials with a phosphorus content of 5% to 8%.

[0003] Similar problems also exist in the preparation of copper-phosphorus alloys. For example, the methods mentioned in Chinese patents CN117490409A, CN117758103A and CN116752010A all involve direct contact and mixing reaction between copper liquid and phosphorus. These methods also suffer from problems such as insufficient mixing reaction, uneven distribution of phosphorus in the finished product, and content that fails to meet expectations.

[0004] In existing preparation methods, if the seal is not tight or the reaction temperature is too high, phosphorus vapor will escape in large quantities. The utilization rate of phosphorus vapor is low, and most of the phosphorus vapor escapes during the reaction process, which not only wastes resources but also pollutes the environment. Secondly, in existing preparation methods, the reaction mode of phosphorus source material and pure metal raw material is mainly the contact reaction of metal liquid and phosphorus solid under heating conditions, and then auxiliary enhanced stirring. This method cannot ensure the full mixing of phosphorus element and metal element, thereby affecting the performance of the alloy. Therefore, existing preparation methods have obvious deficiencies in efficiency, resource utilization and environmental protection, and need further improvement.

[0005] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. Utility Model Content

[0006] In order to solve the technical problems of low efficiency, high cost, low resource utilization and unsatisfactory phosphorus content in the preparation process of phosphorus-containing alloys in the prior art, a smelting device for preparing phosphorus alloys is provided.

[0007] The utility model provides a device for preparing phosphorus-containing alloy materials, comprising a furnace body, a molten metal feeder is provided on the top of the furnace body, a heating base plate is provided on the bottom of the furnace body, and a phosphorus source feed port is provided on the side wall of the furnace body, and the position of the phosphorus source feed port corresponds to the position of the heating base plate.

[0008] In some embodiments, the molten metal feeder includes a metal heating cylinder and a feed hole, and the feed hole is connected to the interior of the furnace body.

[0009] In some embodiments, an atomizing device is provided at the feed inlet.

[0010] In some embodiments, the heating base has a sloped structure.

[0011] In some embodiments, the position of the phosphorus source feed port corresponds to the highest point of the heating base.

[0012] In some embodiments, a finished product discharge port is provided near the furnace body, and the position of the finished product discharge port corresponds to the lowest point of the heating chassis.

[0013] In some embodiments, the finished product discharge port is provided with an agitator, and the agitator is fixed to the side wall of the furnace body.

[0014] In some embodiments, the inner wall of the furnace body is provided with a temperature-resistant protective layer to slow down or prevent the erosion of the furnace wall by high-temperature droplets.

[0015] In some embodiments, the furnace body includes an upper barrel and a lower barrel. The upper barrel is in an inverted cone shape to collect phosphorus vapor at the top, thereby increasing the contact reaction area and reaction time between metal droplets and phosphorus vapor.

[0016] Compared with the prior art, the technical effects achieved by the present invention are as follows:

[0017] (1) Improving phosphorus content accuracy: The present invention melts the metal material in a sealed container and then sprays it through a small hole in the top of the container or injects it into the container in droplets. The bottom of the container is where phosphorus vapor is generated by heating the phosphorus. The phosphorus vapor liquefies under high temperature and high pressure and mixes more thoroughly with the molten metal droplets. This mixing method ensures that the phosphorus and metal elements are fully mixed, thereby improving the accuracy of the phosphorus content in the tin-phosphorus alloy and making it closer to the desired content.

[0018] (2) Improve resource utilization: In the existing preparation methods, the mixing method of the phosphorus source raw material and the metal raw material is mainly through enhanced stirring. This method cannot ensure the full mixing of the phosphorus element and the metal element, thereby affecting the performance of the alloy. In addition, in the existing preparation methods, the utilization rate of phosphorus is low, and most of the phosphorus vapor escapes during the reaction process, which not only wastes resources but also pollutes the environment. The utility model can effectively improve the utilization rate of phosphorus by increasing the contact area and reaction time between the phosphorus vapor and the metal raw material, and the phosphorus vapor is liquefied under high temperature and high pressure environment and more fully mixed with the molten metal droplets, which can effectively improve the utilization rate of phosphorus vapor, reduce resource waste, and be environmentally friendly.

[0019] (3) Improve preparation efficiency: The metal raw material of the utility model contacts and reacts with phosphorus vapor or liquid phosphorus in a droplet form quickly under a high temperature and high pressure environment. By adding an agitator, the contact reaction time of the metal raw material and phosphorus is further increased, which can improve the preparation efficiency of the alloy, shorten the preparation time, and improve production efficiency.

[0020] (4) Reduced preparation costs: The movement of phosphorus vapor within a sealed container increases the contact reaction time between the phosphorus vapor and the metal raw material, reduces phosphorus vapor loss, and also reduces the possibility of phosphorus vapor escape. Phosphorus vapor liquefies under high temperature and high pressure and mixes more thoroughly with the molten metal droplets, which can improve the preparation efficiency of the alloy, reduce preparation costs, and improve economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of Example 1 of the present utility model;

[0022] In the picture:

[0023] 1 furnace body; 1-1 furnace body upper barrel; 1-2 furnace body lower barrel; 2 molten metal feeder; 2-1 metal heating barrel; 2-2 feeding hole; 3 heating bottom plate; 4 phosphorus source feeding port; 5 finished product discharging port; 6 agitator. DETAILED DESCRIPTION

[0024] The technical solution of the present invention is described below through specific embodiments in conjunction with the accompanying drawings. It should be understood that the one or more steps mentioned in the present invention do not exclude the existence of other methods and steps before and after the combined steps, or other methods and steps may be inserted between these explicitly mentioned steps. It should also be understood that these examples are only used to illustrate the present invention and are not used to limit the scope of the present invention. Unless otherwise specified, the numbering of each method step is only for the purpose of identifying each method step, and does not limit the order of arrangement of each method or limit the scope of implementation of the present invention. Changes or adjustments in their relative relationships can also be regarded as the scope of implementation of the present invention without substantial changes in the technical content.

[0025] The sources of the raw materials and instruments used in the examples are not particularly limited and can be purchased from the market or prepared according to conventional methods known to those skilled in the art.

[0026] Example 1

[0027] like Figure 1 As shown, a device for preparing phosphorus-containing alloy materials includes a furnace body 1, a molten metal feeder 2, a heating base plate 3, a phosphorus source feed port 4, a finished product discharge port 5 and a stirrer 6.

[0028] The furnace body 1 is a sealed pressure vessel consisting of a bottomless inverted cone-shaped upper drum 1-1 and a lidless cylindrical lower drum 1-2. A heat-resistant protective layer is installed inside the furnace body 1 to mitigate or prevent erosion of the furnace walls by high-temperature droplets. The inverted cone shape of the upper drum 1-1 facilitates the collection of phosphorus vapor at the top, maximizing the contact and reaction area between the metal droplets and the phosphorus vapor and increasing the reaction time.

[0029] The molten metal feeder 2, located atop the upper barrel 1-1 of the furnace, consists of a metal heating cylinder 2-1 and a feed port 2-2. The metal heating cylinder 2-1 is a sealable cylindrical structure used to hold the raw metal, pure tin. It is equipped with a heating function to heat and melt the metal (e.g., pure tin). The feed port 2-2, located at the bottom of the molten metal feeder 2 and sealed to the top of the upper barrel 1-1, controls the speed and flow of the metal entering the furnace 1.

[0030] A droplet input device is provided at the bottom of the molten metal feeder 2 so that the heated molten metal is atomized into droplets by ultrasonic atomization, and the atomized droplets enter the furnace body 1 through the feed hole 2-2.

[0031] The heating base 3 is located at the bottom of the furnace body lower barrel 1-2, fitting tightly against the bottom of the furnace body lower barrel 1-2 to prevent the metal raw material, pure tin, from entering the gap between the furnace body lower barrel 1-2 and the heating base 3. The heating base 3 is designed to be sloped, with one side higher and the other lower, to collect the mixed metal raw material (such as pure tin) and liquefied phosphorus vapor. The mixed metal raw material and liquefied liquid phosphorus converge at the lowest point of the heating base 3 (right side in the figure) for further contact reaction. A heating resistance wire is inserted through the bottom of the heating base 3 to maintain the temperature of the heating base 3 according to the program setting so that the metal raw material and red phosphorus that fall on the heating base 3 remain in at least a liquid or gaseous state. The temperature program of the heating base 3 needs to adjust the reaction temperature and time according to different alloy requirements (appropriate phosphorus source raw material and metal raw material), as well as control the heating and cooling rates. The phosphorus source can also be quickly vaporized by adjusting the temperature and pressure to produce a phosphorus-containing alloy material that meets the desired content.

[0032] The phosphorus source feed port 4 is primarily used for adding phosphorus source material (such as red phosphorus). Located on the side wall of furnace body 1, it is tilted at a certain angle for feeding material, ensuring a good seal with furnace body 1 without affecting its sealing. The phosphorus source feed port 4 is located above the higher end of the heating base 3 (the left side in the figure), so that when the phosphorus source material is poured into the phosphorus source feed port 4, it will fall directly onto the higher end of the heating base 3. After heating, if it becomes liquid, it will flow along the slope of the heating base 3 to collect at the lowest point.

[0033] The finished product discharge port 5 is located near the bottom of the furnace wall on the side of the lower barrel 1-2 of the furnace body, close to the lowest point of the heating base 3, and is well sealed with the furnace body 1 without affecting the sealing of the furnace body 1. After the reaction is completed, the finished product discharge port 5 is opened to facilitate the self-flow transfer of the tin-phosphorus alloy material along this port into the mold or other container for casting.

[0034] Agitator 6 is located on the side wall of lower drum 1-2, near the top of finished product discharge port 5. It maintains a tight seal with lower drum 1-2 and does not affect the seal of furnace body 1. Agitator 6's primary function is to further enhance the agitation of the metal material and liquefied phosphorus vapor collected at the lowest point of heating base 3. The agitator's paddle should be immersed in the metal material to achieve enhanced agitation.

[0035] A pressure device (not shown) is also installed on the side wall of the furnace body to monitor and regulate the pressure inside the furnace body.

[0036] The working method of the above-mentioned phosphorus-containing alloy material preparation device is as follows: the metal raw material pure tin is placed in the metal heating cylinder 2-1 of the metal liquid feeder 2 and sealed, the phosphorus source raw material red phosphorus is poured through the phosphorus source feed port 4 so that it falls on the higher end (left side in the figure) of the heating base 3 and the phosphorus source feed port 4 is sealed, the metal heating cylinder 2-1 is heated to melt the metal raw material pure tin, the heating base 3 is heated according to a program so that the phosphorus source raw material red phosphorus moves upward in the furnace body 1 in the form of phosphorus vapor or flows along the slope of the heating base 3 to the lowest point in the form of liquid phosphorus, and the molten metal raw material pure tin is controlled through the feed hole 2-2 to enter the furnace body 1 in the form of atomized droplets or small droplets to fully contact and react with the phosphorus vapor. Pure tin moves from top to bottom, and phosphorus vapor moves from bottom to top. Pure tin is in the form of small droplets and fully contacts and reacts with the phosphorus vapor, which increases the contact area and reaction time of pure tin and phosphorus vapor. The reacted metal raw material pure tin droplets gather on the heated heating base 3 and flow to the lowest point along the slope. Under the high pressure and high temperature environment in the sealed furnace, the phosphorus vapor may liquefy into liquid phosphorus and drip onto the heating base 3 and converge to the lowest point. The liquid metal raw material pure tin and phosphorus vapor or liquid phosphorus are further stirred and mixed by the stirrer 6. After the reaction is complete, the heating function is turned off to restore the pressure in the furnace body 1 to normal pressure. Then the finished product discharge port 5 can be opened to transfer the phosphorus-containing alloy material to the mold or other containers for casting.

[0037] The phosphorus content in the phosphorus-containing alloy material prepared by the above device and method is controllable, and the prepared phosphorus content can meet the use requirements of high-phosphorus alloy materials.

[0038] In some embodiments, atomization may or may not be used at the feed port 2-2, and the atomization method may be gas atomization, centrifugal atomization, etc. The atomization method can reduce the size of the molten metal droplets to further enhance the contact and mixing with the phosphorus vapor.

[0039] In some embodiments, the metal raw material is a metal matrix material to which phosphorus is added. It can be a pure metal or an alloy material, such as pure tin, pure copper, pure gallium, pure bismuth, pure indium, bismuth-indium-tin alloy, tin-bismuth alloy, gallium-indium-tin alloy, etc. The phosphorus source raw material is a raw material that provides phosphorus and can produce phosphorus vapor after being heated to a certain temperature. The phosphorus source raw material can be a material with a high phosphorus content, such as red phosphorus or yellow phosphorus, and can be in block, powder, or granular form.

[0040] The foregoing descriptions of specific exemplary embodiments of the present invention are for purposes of illustration and description. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is apparent that many modifications and variations are possible in light of the foregoing teachings. The exemplary embodiments have been selected and described for the purpose of explaining the specific principles of the present invention and their practical application, thereby enabling those skilled in the art to realize and utilize a variety of exemplary embodiments of the present invention and various options and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

[0041] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0042] In addition, the terms "first," "second," etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. In the description of this utility model, "plurality" means more than two, unless otherwise specifically defined.

Claims

1. A device for preparing phosphorus-containing alloy material, characterized in that: The invention comprises a furnace body, a molten metal feeder is provided on the top of the furnace body, a heating base is provided on the bottom of the furnace body, and a phosphorus source feed port is provided on the side wall of the furnace body, the position of the phosphorus source feed port corresponds to the position of the heating base.

2. The phosphorus-containing alloy material preparation device according to claim 1, characterized in that: The molten metal feeder includes a metal heating cylinder and a feed hole, and the feed hole is communicated with the interior of the furnace body.

3. The phosphorus-containing alloy material preparation device according to claim 2, characterized in that: An atomizing device is provided at the feed inlet.

4. The phosphorus-containing alloy material preparation device according to claim 1, characterized in that: The heating base has a sloped structure.

5. The phosphorus-containing alloy material preparation device according to claim 4, characterized in that: The position of the phosphorus source feed port corresponds to the position of the highest point of the heating base.

6. The phosphorus-containing alloy material preparation device according to claim 4, characterized in that: A finished product discharge port is provided near the furnace body, and the position of the finished product discharge port corresponds to the position of the lowest point of the heating chassis.

7. The phosphorus-containing alloy material preparation device according to claim 6, characterized in that: The finished product discharge port is provided with a stirrer, and the stirrer is fixed on the side wall of the furnace body.

8. The phosphorus-containing alloy material preparation device according to claim 1, characterized in that: The inner wall of the furnace body is provided with a temperature-resistant protective layer.

9. The phosphorus-containing alloy material preparation device according to claim 1, characterized in that: The furnace body comprises an upper barrel and a lower barrel, and the upper barrel is in an inverted cone shape.

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