Molten aluminum refining and deslagging device

Abstract

The utility model discloses a molten aluminum refining and deslagging device, relates to the field of aluminum refining, and aims to solve the problems that the refining efficiency of molten aluminum is reduced and the quality of finished products is influenced as filter residues influence the mixing of a refining agent and the molten aluminum in the refining process of the molten aluminum. The smelting cylinder is communicated with the gas storage tank through a connecting pipe, a molten aluminum stirring device is rotationally connected into the smelting cylinder, an aluminum slag storage device is arranged on the inner side of the molten aluminum stirring device, the molten aluminum stirring device comprises a motor, a driving rod and a stirring rod, the driving rod is located in the smelting cylinder and fixedly connected with the stirring rod, and the aluminum slag storage device comprises a scraper and a filter cylinder. The scraping plate is fixedly connected with the stirring rod, the filtering barrel is located on the inner side of the scraping plate, an upper barrel opening of the filtering barrel is located on the lower side of the scraping plate, the bottom of the filtering barrel is fixedly connected with the smelting barrel, and screening holes are formed in the bottom of the filtering barrel.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum refining, in particular to a slag removal device for aluminum liquid refining. Background Art

[0002] During the smelting process of aluminum and aluminum alloys, due to various reasons, some solid non-metallic inclusions are often mixed in the melt and some gases are absorbed. The presence of these impurities and gases causes foreign matter and pores in the finished aluminum block, which has an adverse effect on the quality of the product. Therefore, in the smelting process of aluminum and aluminum alloys, it is very important to refine and degas the melt.

[0003] The traditional aluminum liquid refining method is usually to manually send the refining agent into the aluminum liquid in the furnace through inert gas at a suitable aluminum liquid temperature, and continuously stir it to achieve effective refining and removal. However, when the refining agent is introduced into the existing refining device, the refining agent first contacts the uppermost layer of the aluminum liquid. This causes the aluminum slag formed after the upper aluminum liquid reacts with the refining agent to affect the mixing of the refining agent and the lower aluminum liquid, thereby reducing the aluminum liquid refining efficiency and affecting the aluminum liquid refining effect, and further affecting the quality of the finished product. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a molten aluminum refining slag removal device. Through this design, the problem that the filter residue will affect the mixing of the refining agent and the aluminum liquid during the aluminum liquid refining process, thereby reducing the refining efficiency of the aluminum liquid and affecting the quality of the finished product is effectively solved.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: the utility model includes a bracket, on which a smelting barrel and a gas storage tank are provided, the smelting barrel and the gas storage tank are connected through a connecting pipe, an aluminum liquid stirring device is rotatably connected in the smelting barrel, an aluminum slag receiving device is provided inside the aluminum liquid stirring device, the aluminum liquid stirring device includes a motor, a driving rod and a stirring rod, the motor is located at the lower end of the smelting barrel, the driving rod is located inside the smelting barrel, the driving rod is fixedly connected to the stirring rod, the aluminum slag receiving device includes a scraper and a filter barrel, the scraper is fixedly connected to the stirring rod, the filter barrel is located on the inner side of the scraper, the upper barrel mouth of the filter barrel is located on the lower side of the scraper, the bottom of the filter barrel is fixedly connected to the smelting barrel, and the bottom of the filter barrel is provided with a sieve hole.

[0006] Preferably, the smelting cylinder is provided with a cylinder cover, and the cylinder cover and the smelting cylinder are provided with locks which engage with each other.

[0007] Preferably, a protective sleeve is fixedly connected inside the filter cartridge, and the protective sleeve is rotatably connected to the driving rod.

[0008] Preferably, the filter cartridge is provided with a groove, a pipe sleeve is rotatably connected in the groove, and the pipe sleeve is fixedly connected to the stirring rod.

[0009] Preferably, a discharge port is provided on the upper side of the smelting cylinder, the upper end of the smelting cylinder is hinged to the bracket, the smelting cylinder and the lower end of the gas storage tank are fixedly connected with a bottom plate, a telescopic rod is hinged on the bottom plate, and the telescopic rod is hinged to the bracket.

[0010] Preferably, a filter screen is provided at the discharge port.

[0011] Preferably, a roller is rotatably connected to the bottom of the bracket, and a handrail is fixedly connected to the rear side of the bracket.

[0012] Compared with the prior art, the utility model has the following outstanding advantages:

[0013] The utility model provides an aluminum liquid stirring device in the smelting barrel to improve the fluidity of the aluminum liquid in the stirring barrel, accelerate the mixing rate of the aluminum liquid into the refining agent, and at the same time, stirring helps to discharge the gas in the aluminum liquid and improve the quality of the finished product.

[0014] The utility model provides a scraper on the stirring rod, and the scraper can scrape the upper surface of the aluminum liquid during the rotation of the stirring rod, so that the refining agent can better contact with the aluminum liquid in the lower layer, thereby improving the mixing efficiency of the aluminum liquid and the refining agent.

[0015] The utility model is provided with a filter cartridge, which cooperates with a stirring rod. Under the action of the stirring rod, the aluminum liquid rotates in a vortex shape, so that the aluminum slag enters the filter cartridge along with the vortex, reducing the influence of the aluminum slag on the refining of the aluminum liquid and improving the reaction rate of the aluminum liquid and the refining agent. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of Example 1 of the utility model.

[0017] Figure 2 It is a schematic diagram of the structure of the positive part of the utility model.

[0018] Figure 3 This is a schematic diagram of the bottom plate connection structure of the utility model.

[0019] Figure 4 It is a schematic diagram of the cross-sectional structure of the smelting tube of the utility model.

[0020] Figure 5 This is a schematic diagram of the structure of the filter cartridge of the utility model.

[0021] Figure 6 This is a schematic structural diagram of Example 2 of the utility model.

[0022] Numbers in the figure: 1. bracket; 2. smelting cylinder; 3. gas storage tank; 4. connecting pipe; 5. driving rod; 6. stirring rod; 7. scraper; 8. filter cylinder; 9. sieve hole; 10. cylinder cover; 11. lock; 12. protective cover; 13. groove; 14. pipe sleeve; 15. discharge port; 16. bottom plate; 17. telescopic rod; 18. filter screen; 19. roller; 20. handrail. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model are clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Example 1

[0024] Please see attached Figure 1-5 , This embodiment provides a molten aluminum refining and slag removal device: it includes a bracket 1, a smelting barrel 2 and a gas storage tank 3 are provided on the bracket 1, the smelting barrel 2 and the gas storage tank 3 are communicated through a connecting pipe 4, an aluminum liquid stirring device is rotatably connected in the smelting barrel 2, an aluminum slag receiving device is provided inside the aluminum liquid stirring device, the aluminum liquid stirring device includes a motor, a driving rod 5 and a stirring rod 6, the motor is located at the lower end of the smelting barrel 2, the driving rod 5 is located inside the smelting barrel 2, the driving rod 5 is fixedly connected to the stirring rod 6, the aluminum slag receiving device includes a scraper 7 and a filter cylinder 8, the scraper 7 is fixedly connected to the stirring rod 6, the filter cylinder 8 is located on the inner side of the scraper 7, the upper barrel mouth of the filter cylinder 8 is located on the lower side of the scraper 7, the bottom of the filter cylinder 8 is fixedly connected to the smelting barrel 2, and the bottom of the filter cylinder 8 is provided with a sieve hole 9.

[0025] A chassis is provided on the upper side of the support 1, and a controller is provided in the chassis. The controller is used to control the temperature in the smelting barrel 2, the addition of refining agent, and the start and stop of the aluminum liquid stirring device. The gas storage tank 3 stores inert gas and refining agent. When the aluminum liquid is refined, the aluminum liquid is introduced into the smelting barrel 2 from the upper opening of the smelting barrel 2, and the inert gas and refining agent are poured into the smelting barrel 2 through the gas storage tank 3. At the same time, the aluminum liquid stirring device is started to stir the aluminum liquid to accelerate the mixing of the aluminum liquid and the refining agent. The filter barrel 8 is located at the center of the smelting barrel 2. During the stirring process of the stirring rod 6, the aluminum liquid in the smelting barrel 2 will present a vortex shape. The liquid level is lower than the liquid level around it. The scraper 7 is placed at an angle. During the rotation of the stirring rod 6, the scraper 7 scrapes the upper surface of the aluminum liquid, thereby scraping off the aluminum liquid and aluminum slag on the uppermost layer of the capacity cylinder, making it convenient for the falling refining agent to contact the aluminum liquid on the lower layer. The aluminum liquid scraped by the scraper 7 flows into the filter cylinder 8 under the action of the vortex and the baffle. The bottom of the filter cylinder 8 is provided with a sieve hole 9. The aluminum liquid entering the filter cylinder 8 flows again with the vortex formed by the aluminum liquid through the sieve hole 9. The aluminum slag in the filter cylinder 8 is retained in the filter cylinder 8 under the action of the sieve hole 9, thereby reducing the interference of the aluminum slag on the refining of the aluminum liquid and improving the efficiency and quality of the aluminum liquid refining.

[0026] The smelting cylinder 2 is provided with a cylinder cover 10, and the cylinder cover 10 and the smelting cylinder 2 are installed with lock buckles 11 that buckle with each other; the cylinder cover 10 and the smelting cylinder 2 are detachably connected, and the lock buckle 11 is a lock buckle 11 structure commonly used in life, including a buckle ring and a connecting buckle, the connecting buckle is located on the smelting cylinder 2, and the buckle ring is located on the cylinder cover 10, and the smelting cylinder 2 and the cylinder cover 10 are fixed together by the lock buckle 11.

[0027] A protective sleeve 12 is fixedly connected inside the filter cartridge 8. The protective sleeve 12 is rotatably connected to the driving rod 5. The protective sleeve 12 is located outside the driving rod 5. The protective sleeve 12 protects the driving rod 5 and reduces the contact between the driving rod 5 and the aluminum liquid.

[0028] The filter cartridge 8 is provided with a groove 13, in which a pipe sleeve 14 is rotatably connected, and the pipe sleeve 14 is fixedly connected to the stirring rod 6; the two ends of the stirring rod 6 are respectively connected to the sleeve and the driving rod 5, and both ends of the stirring rod 6 have support points to increase the strength of the stirring rod 6 and prevent the stirring rod 6 from being deformed under the action of high temperature and high resistance.

[0029] The upper side of the smelting cylinder 2 is provided with a discharge port 15, the upper end of the smelting cylinder 2 is hinged to the bracket 1, the lower ends of the smelting cylinder 2 and the gas storage tank 3 are fixedly connected with a bottom plate 16, a telescopic rod 17 is hinged on the bottom plate 16, and the telescopic rod 17 is hinged to the bracket 1; a filter screen 18 is provided at the discharge port 15; the hinge points between the upper end of the smelting cylinder 2 and the bracket 1 are located at the two ends of the discharge port 15, the discharge port 15 is a pointed mouth shape, and the telescopic rod 17 is a hydraulic telescopic rod. The support 1 is provided with an oil pump, which is controlled by a controller. After the aluminum liquid in the smelting barrel 2 fully reacts, the bottom plate 16 and the smelting barrel 2 are driven to rotate upward by extending the telescopic rod 17, and the bottom of the smelting barrel 2 is upward, so that the smelting barrel 2 is tilted, and the aluminum liquid in the smelting barrel 2 is poured out from the discharge port 15. A material collecting car is placed on the rear side of the support 1 for collecting the aluminum liquid after refining. The filter screen 18 can effectively block the aluminum slag to ensure the purity of the aluminum liquid after refining. Example 2

[0030] The structure is the same as the above embodiment. Figure 6 As shown, the specific difference of this embodiment is that: the bottom of the bracket 1 is rotatably connected to a roller 19, and the rear side of the bracket 1 is fixedly connected to an armrest 20; the roller 19 can reduce the friction between the bracket 1 and the ground, making it convenient to move the device, and the armrest 20 is located on one side of the bracket 1, which is convenient for applying force to the bracket 1 and transferring the device.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A molten aluminum refining and slag removal device, characterized in that: The invention comprises a support (1), wherein a smelting barrel (2) and a gas storage tank (3) are provided on the support (1), wherein the smelting barrel (2) and the gas storage tank (3) are connected via a connecting pipe (4), wherein an aluminum liquid stirring device is rotatably connected inside the smelting barrel (2), wherein an aluminum slag collecting device is provided inside the aluminum liquid stirring device, wherein the aluminum liquid stirring device comprises a motor, a driving rod (5) and a stirring rod (6), wherein the motor is located at the lower end of the smelting barrel (2), wherein the driving rod (5) is located inside the smelting barrel (2), wherein the driving rod (5) is fixedly connected to the stirring rod (6), wherein the aluminum slag collecting device comprises a scraper (7) and a filter barrel (8), wherein the scraper (7) is fixedly connected to the stirring rod (6), wherein the filter barrel (8) is located inside the scraper (7), wherein the upper barrel opening of the filter barrel (8) is located below the scraper (7), wherein the bottom of the filter barrel (8) is fixedly connected to the smelting barrel (2), and wherein a sieve hole (9) is provided at the bottom of the filter barrel (8).

2. The aluminum liquid refining and slag removal device according to claim 1, characterized in that: The smelting cylinder (2) is provided with a cylinder cover (10), and the cylinder cover (10) and the smelting cylinder (2) are provided with locks (11) that engage with each other.

3. The aluminum liquid refining and slag removal device according to claim 1 is characterized in that: A protective sleeve (12) is fixedly connected inside the filter cartridge (8), and the protective sleeve (12) is rotatably connected to the driving rod (5).

4. The aluminum liquid refining and slag removal device according to claim 1 is characterized in that: The filter cartridge (8) is provided with a groove (13), a pipe sleeve (14) is rotatably connected in the groove (13), and the pipe sleeve (14) is fixedly connected to the stirring rod (6).

5. The aluminum liquid refining and slag removal device according to claim 1, characterized in that: The upper side of the smelting barrel (2) is provided with a discharge port (15), the upper end of the smelting barrel (2) is hinged to the bracket (1), the lower ends of the smelting barrel (2) and the gas storage tank (3) are fixedly connected with a bottom plate (16), a telescopic rod (17) is hinged on the bottom plate (16), and the telescopic rod (17) is hinged to the bracket (1).

6. The aluminum liquid refining and slag removal device according to claim 5, characterized in that: A filter screen (18) is provided at the discharge port (15).

7. The aluminum liquid refining and slag removal device according to claim 1 is characterized in that: The bottom of the bracket (1) is rotatably connected to a roller (19), and the rear side of the bracket (1) is fixedly connected to a handrail (20).

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