A low-temperature liquid-phase preparation hierarchical integrated device

Abstract

The utility model discloses a kind of low-temperature liquid preparation grading integrated devices, it is related to preparation grading equipment technical field, including smelt material component, grading component;Smelt material component includes smelt barrel, heating part, positive electrode, pressurizing part, discharge pipe, micropore nozzle;Grading component includes grading barrel, electrode plate, dispersion solvent, first-stage material collecting tank and second-stage material collecting tank, discharge pipe, micropore nozzle are inserted into the dispersion solvent in grading barrel, first-stage material collecting tank, second-stage material collecting tank are sequentially located between micropore nozzle, electrode plate;Electrode plate is the inside negative electrode of grading barrel;Heating part melts raw material in smelt barrel and passes into pressurized nitrogen, and raw material after melting is sprayed from micropore nozzle, and the powder sprayed under the tension effect of dispersion solvent shrinks into ball, positive electrode and negative electrode are respectively passed on electrode tube and electrode plate, and different electric field traction force is different for different raw material granularity, and particle size big quality big enters first-stage material collecting tank, and particle size small quality small enters second-stage material collecting tank to complete the grading of powder.

Description

Technical Field

[0001] This utility model relates to the field of preparation and grading equipment technology, specifically to a low-temperature liquid phase preparation and grading integrated device. Background Technology

[0002] The core application of low-temperature powders (below 100℃) lies in precisely protecting the activity and structure of heat-sensitive substances, making them indispensable in temperature-sensitive fields such as biomedicine, high-end food, and advanced materials. Due to their low-temperature characteristics, they are also widely used in new energy, ceramics, chemicals, metallurgy, electronics, and aerospace. The particle size distribution, morphology, and purity of powder materials directly affect the performance and quality of the final product. Traditional powder preparation and classification processes are usually independent operating systems, resulting in poor consistency in sphericity, particle size distribution range, and morphology among single batches of powder. Utility Model Content

[0003] The main objective of this invention is to provide a low-temperature liquid phase preparation and classification integrated device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides an integrated device for low-temperature liquid phase preparation and fractionation, comprising: A melting assembly includes a melting barrel and a heating element disposed inside the melting barrel; the outer wall of the melting barrel is provided with a first insulating layer, and the melting barrel is provided with a first sealing cover; the first sealing cover is provided with an electrode tube located inside the melting barrel, which serves as a positive electrode for the material inside the melting barrel; a pressure element is provided at the top of the first sealing cover; a discharge pipe is provided at the bottom of the melting barrel; and a micro-orifice nozzle is detachably provided on the discharge pipe. A classification assembly includes a classification tank and an electrode plate disposed inside the classification tank. The classification tank has an injection port for injecting a dispersion solvent. A primary collection tank and a secondary collection tank are arranged side by side at the bottom of the classification tank. A second insulating layer is provided on the outside of the classification tank. A second sealing cap is provided on the injection port. The discharge pipe and the microporous nozzle extend into the dispersion solvent inside the classification tank and are arranged opposite to the electrode plate. The primary collection tank and the secondary collection tank are located sequentially between the microporous nozzle and the electrode plate. The electrode plate is used to provide a negative electrode for the inside of the classification tank.

[0005] As a further improvement of this utility model, the inside of the molten material barrel is hollow to form a molten material cavity, and the inner diameter of the bottom end of the molten material barrel decreases to form a guiding cavity.

[0006] As a further improvement of this utility model, the heating element includes a heating tube disposed in the melting chamber; the heating tube is located on the inner wall and center of the feeding chamber.

[0007] As a further improvement of this utility model, the first sealing cover is provided with a high-temperature resistant sealing ring inside, and the first sealing cover and the melting barrel are detachably connected by a snap fastener.

[0008] As a further improvement of this utility model, the pressurizing component includes a pressurizing pipe connected to the first sealing cover and a pressurizing pump connected to the pressurizing pipe; a pressure controller is provided on the pressurizing pipe; the pressurizing pump introduces nitrogen gas into the molten material barrel through the pressurizing pipe.

[0009] As a further improvement of this utility model, the internal hole of the grading barrel forms a grading cavity; the molten material barrel is located on one side of the top of the grading barrel; and the electrode plate is located on the side of the grading cavity opposite to the molten material barrel.

[0010] As a further improvement of this utility model, a first guide plate is inclinedly provided at the end of the primary receiving tank away from the micro-orifice nozzle; the first guide plate extends from the primary receiving tank to the secondary receiving tank; a second guide plate is inclinedly provided at the end of the secondary receiving tank near the first guide plate; the second guide plate extends from the secondary receiving tank box to the primary receiving tank.

[0011] The beneficial effects of this utility model are reflected in: The raw materials in the molten tub are melted by setting up a heating element and pressurized nitrogen is introduced. When the nitrogen pressure is adjusted, the electrode tube is opened so that the molten low-temperature alloy is sprayed from the micro-orifice into the dispersion solvent with a positive or negative charge. In the electrolyte, it shrinks into spheres under the action of the surface tension of the electrolyte liquid phase. During the spheroidization process, the alloy particles are inconsistent in size. Larger particles settle faster. The electrode tube and electrode plate are respectively connected to positive and negative electrodes. Under the action of the applied electric field, the alloy particles have a lateral traction force. Since the lateral electric field force is the same, the larger powder particles are pulled by the electric field traction force for a shorter flight distance and enter the primary collection tank first. Smaller powder particles have a longer settling time and a longer lateral flight distance and enter the secondary collection tank to complete the powder classification process. This realizes the preparation and classification of low-temperature alloys. The sphericity consistency of powder in a single batch is improved under the tension of the dispersion solvent, and particles of different sizes are classified and collected by electromagnetic traction force. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of a low-temperature liquid phase preparation and classification integrated device according to the present invention; Explanation of reference numerals in the attached figures: 1. Melting tank; 2. Heating element; 3. First insulating layer; 4. First sealing cover; 5. Electrode tube; 6. Pressurizing element; 601. Pressurizing pipe; 602. Pressure controller; 7. Discharge pipe; 8. Micro-orifice nozzle; 9. Classifying tank; 10. Electrode plate; 11. Liquid injection port; 12. Dispersing solvent; 13. Primary receiving tank; 14. Secondary receiving tank; 15. Second insulating layer; 16. Second sealing cover; 17. Melting chamber; 18. Conveying chamber; 19. Valve; 20. Classifying chamber; 21. Fixing cylinder; 22. Liquid injection pipe; 23. First guide plate; 24. Second guide plate. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the described embodiments are merely some, not all, of the embodiments of this utility model. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0014] In one embodiment, see Figure 1 The present invention relates to a low-temperature liquid phase preparation and classification integrated device, comprising a melting component and a classification component.

[0015] The melting assembly includes a melting tank 1, a heating element 2 disposed inside the melting tank 1, a first insulating layer 3 on the outer wall of the melting tank 1, a first sealing cover 4 on the melting tank 1, an electrode tube 5 located inside the melting tank 1 on the first sealing cover 4 to act as a positive electrode for the material inside the melting tank 1, a pressure element 6 on the top of the first sealing cover 4, and a discharge pipe 7 at the bottom of the melting tank 1, with a detachable micro-orifice nozzle 8 on the discharge pipe 7; the grading assembly includes a grading tank 9, an electrode plate 10 disposed inside the grading tank 9, and a grading... The classifying tank 9 is provided with an injection port 11 for injecting the dispersing solvent 12. The bottom of the classifying tank 9 is provided with a primary receiving tank 13 and a secondary receiving tank 14 arranged side by side. The classifying tank 9 is provided with a second insulating layer 15. The injection port 11 is provided with a second sealing cap 16. The discharge pipe 7 and the micro-orifice nozzle 8 extend into the dispersing solvent 12 inside the classifying tank 9 and are arranged opposite to the electrode plate 10. The primary receiving tank 13 and the secondary receiving tank 14 are located between the micro-orifice nozzle 8 and the electrode plate 10 in sequence. The electrode plate 10 is used to pass a negative electrode through the inside of the classifying tank 9.

[0016] Furthermore, the interior of the molten material barrel 1 is hollow to form a molten material cavity 17, and the inner diameter of the bottom end of the molten material barrel 1 decreases to form a guide cavity 18.

[0017] Preferably, the molten material barrel 1 is a hollow cylinder, and the bottom of the molten material barrel 1 has a funnel-shaped structure.

[0018] Preferably, the discharge pipe 7 is connected to the guide chamber 18, and a valve 19 is provided on the discharge pipe 7.

[0019] Furthermore, the heating element 2 includes a heating tube disposed in the melting chamber 17, the heating tube being located on the inner wall and at the center of the feeding chamber.

[0020] Preferably, the outer wall of the molten material barrel 1 is provided with a heat insulation layer, and the first insulation layer 3 is located outside the heat insulation layer.

[0021] Furthermore, the first sealing cover 4 is equipped with a high-temperature resistant sealing ring inside, and the first sealing cover 4 and the molten material barrel 1 are detachably connected by a snap fastener.

[0022] Preferably, the first sealing cover 4 is a hollow cylinder with one end open. The first sealing cover 4 is fitted with the open end of the molten material barrel 1 with a clearance. After the first sealing cover 4 is closed on the open end of the molten material barrel 1, the sealing ring abuts against the open end of the molten material barrel 1, thereby closing the open end of the molten material barrel 1.

[0023] Preferably, the buckle adopts an existing structure, with two sets of buckles located on the same straight line passing through the center of the first sealing cover 4. The first sealing cover 4 is snapped into the molten material barrel 1 by the buckle, so that the inside of the molten material barrel 1 is sealed.

[0024] Furthermore, the pressurizing component 6 includes a pressurizing pipe 601 connected to the first sealing cover 4 and a pressurizing pump connected to the pressurizing pipe 601. A pressure controller 602 is provided on the pressurizing pipe 601, and the pressurizing pump introduces nitrogen gas into the molten material barrel 1 through the pressurizing pipe 601.

[0025] Preferably, the center of the closed end of the first sealing cover 4 is provided with a connecting air nozzle, and the pressurizing pipe 601 is provided with a connecting sleeve. The connecting air nozzle and the connecting sleeve are detachably connected, and the combination of the connecting air nozzle and the connecting sleeve can adopt an existing structure.

[0026] In the above setup, the material is placed in the melting tank 1, and the heating tube is connected to the external circuit. After power is applied, the heating tube generates high temperature to melt the material. Nitrogen gas is introduced into the melting tank 1 through the pressurization pipe 601 via the pressurization pump. The pressure of the gas introduced into the melting tank 1 is controlled by the pressure controller 602. The molten material after pressurization is sprayed out from the micro-orifice nozzle 8 through the discharge pipe 7.

[0027] Furthermore, the internal hole of the grading barrel 9 forms a grading cavity 20, the molten material barrel 1 is located on one side of the top of the grading barrel 9, and the electrode plate 10 is located on the side of the grading cavity 20 opposite to the molten material barrel 1.

[0028] Preferably, the grading tank 9 is a hollow rectangular body, and a fixed cylinder 21 is provided on one side of the top of the grading tank 9. The melting tank 1 is installed in the fixed cylinder 21, and the heating tube is simultaneously installed inside the grading tank 9 to heat the dispersing solvent 12.

[0029] Preferably, the grading tank 9 is provided with an injection pipe 22 on the side away from the fixed cylinder 21, the second sealing cover 16 is connected to the injection pipe 22 by a thread, and a sealing ring is provided between the second sealing cover 16 and the injection pipe 22.

[0030] Preferably, the electrode plate 10 is located in the grading chamber 20 below the injection tube 22.

[0031] Furthermore, a first guide plate 23 is inclinedly provided at the end of the primary receiving tank 13 away from the micro-orifice nozzle 8, and the first guide plate 23 extends from the primary receiving tank 13 to the secondary receiving tank 14; a second guide plate 24 is inclinedly provided at the end of the secondary receiving tank 14 near the first guide plate 23, and the second guide plate 24 extends from the secondary receiving tank 14 to the primary receiving tank 13.

[0032] Preferably, the primary receiving tank 13 and the secondary receiving tank 14 are respectively provided with discharge ports, and the discharge ports are provided with discharge valves 19.

[0033] Preferably, the dispersing solvent 12 is a conventional electrolyte.

[0034] In the above setup, the raw material ejected from the micro-orifice nozzle 8 is subjected to tension in the dispersing solvent 12, causing the ejected powder to shrink into spheres. Larger particles fall into the primary collection tank 13, while smaller particles fall into the secondary collection tank 14.

[0035] In this embodiment, the low-temperature alloy is put into the melting tank 1 for melting. The electrode tube 5 is connected to the positive electrode and a positive electric field is applied to the melting material. The melting tank 1 is kept sealed throughout the process. After the material melts, nitrogen enters the melting tank 1 through the pressure pipe and enters the pressure controller 602 to give the melting tank 1 a constant pressure. At the same time, the automatic feeding valve 19 is controlled to control the feeding. When the raw materials are melted, a conventional electrolyte is added to the preparation classifier 9. The viscosity of the electrolyte is 5-10 (mPa·s), and the electrolyte temperature is heated and maintained at the melting point temperature of the above-mentioned raw material alloy. The raw material alloy with an attached electric field is ejected through a micro-orifice nozzle 8. Due to the surface tension within the liquid, the ejected powder contracts into spheres. Based on the electric field force formula (the fundamental law of interaction between two electric field charges) and the law of gravitational settling, solid particles in a fluid (liquid or gas) are primarily affected by their own gravity, causing them to sink or rise. The core of this process is calculating the terminal settling velocity of the particles—the velocity at which particles move at a constant speed when gravity, buoyancy, and fluid resistance are in equilibrium. Different particle sizes result in different electric field traction forces; larger, heavier particles settle faster and are pulled a shorter distance by the electric field traction force, thus preferentially entering the primary collection tank 13. Smaller, lighter particles enter the secondary collection tank 14 to complete the powder classification process, thereby achieving the preparation and classification of low-temperature alloys.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 low-temperature liquid phase preparation and classification integrated device, characterized in that, include: The melting assembly includes a melting tank (1) and a heating element (2) disposed inside the melting tank (1); a first insulating layer (3) is provided on the outer wall of the melting tank (1), and a first sealing cover (4) is provided on the melting tank (1); an electrode tube (5) located inside the melting tank (1) is provided on the first sealing cover (4) to allow the material inside the melting tank (1) to pass through the positive electrode, and a pressure element (6) is provided on the top of the first sealing cover (4); a discharge pipe (7) is provided on the bottom of the melting tank (1); and a micro-orifice nozzle (8) is detachably provided on the discharge pipe (7). The grading assembly includes a grading tank (9) and an electrode plate (10) disposed inside the grading tank (9). The grading tank (9) is provided with an injection port (11) for injecting a dispersion solvent (12). A primary receiving tank (13) and a secondary receiving tank (14) are respectively arranged side by side at the bottom of the grading tank (9). A second insulating layer (15) is provided outside the grading tank (9). A second sealing cap (16) is provided on the injection port (11). The discharge pipe (7) and the micro-orifice nozzle (8) extend into the dispersion solvent (12) inside the grading tank (9) and are arranged opposite to the electrode plate (10). The primary receiving tank (13) and the secondary receiving tank (14) are located between the micro-orifice nozzle (8) and the electrode plate (10) in sequence. The electrode plate (10) is used to pass a negative electrode through the grading tank (9).

2. The integrated low-temperature liquid phase preparation and classification device according to claim 1, characterized in that: The inside of the molten material barrel (1) is hollow to form a molten material cavity (17), and the bottom inner diameter of the molten material barrel (1) decreases to form a guide cavity (18).

3. The integrated low-temperature liquid phase preparation and classification device according to claim 2, characterized in that: The heating element (2) includes a heating tube disposed in the melting chamber (17); the heating tube is located on the inner wall and center of the feeding chamber.

4. The integrated device for low-temperature liquid phase preparation and classification according to claim 3, characterized in that: The first sealing cover (4) is equipped with a high-temperature resistant sealing ring inside, and the first sealing cover (4) and the melting barrel (1) are detachably connected by a snap fastener.

5. The integrated device for low-temperature liquid phase preparation and classification according to claim 4, characterized in that: The pressurizing component (6) includes a pressurizing pipe (601) connected to the first sealing cover (4) and a pressurizing pump connected to the pressurizing pipe (601); a pressure controller (602) is provided on the pressurizing pipe (601); the pressurizing pump introduces nitrogen into the molten material barrel (1) through the pressurizing pipe (601).

6. The integrated device for low-temperature liquid phase preparation and classification according to claim 5, characterized in that: The grading barrel (9) has a central hole forming a grading cavity (20); the molten material barrel (1) is located on one side of the top of the grading barrel (9); the electrode plate (10) is located on the side of the grading cavity (20) opposite to the molten material barrel (1).

7. The integrated low-temperature liquid phase preparation and classification device according to claim 6, characterized in that: The first-stage receiving tank (13) is provided with a first guide plate (23) at an angle away from the micro-orifice nozzle (8); the first guide plate (23) extends from the first-stage receiving tank (13) to the second-stage receiving tank (14); the second-stage receiving tank (14) is provided with a second guide plate (24) at an angle near the first guide plate (23); the second guide plate (24) extends from the second-stage receiving tank (14) to the first-stage receiving tank (13).

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