Device for automatically heating aluminum powder spray pipe

Abstract

An automatic heating device for an aluminum powder spray pipe is characterized in that a cylinder is mounted on a base, the end of a cylinder rod of the cylinder is connected with a push-pull rod, the push-pull rod is connected with the middle of a driving connecting plate through a push-pull rod rotating shaft, the front end of the driving connecting plate is connected with the upper portion of an electromagnetic heating swing arm, and the rear end of the driving connecting plate is mounted on the base through a connecting plate rotating shaft; the lower portion of the electromagnetic heating swing arm is of a hollow structure, and an electromagnetic heating pipe is installed on the electromagnetic heating swing arm. According to the device for automatically heating the aluminum powder spray pipe, the opening and closing of the electromagnetic heating arm are controlled through the air cylinder, and the electromagnetic heating pipe is arranged in the electromagnetic heating swing arm, so that the heating of the ceramic spray pipe is realized, manual heating is not needed, the safety is high, and the heating effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum powder production. Background Art

[0002] In the process of aluminum powder production, a ceramic nozzle is connected to an aluminum melting furnace and an aluminum powder cooling tank. Under the action of high-temperature and high-pressure nitrogen, the aluminum solution forms fine particles through the aluminum powder nozzle and enters the aluminum powder cooling tank, and becomes aluminum powder after being cooled by the aluminum powder cooling pipe, as Figure 6 shown.

[0003] As shown in Figure 1 shown, the ceramic nozzle 1 and the aluminum powder nozzle 19 need to be replaced after being used for a period of time, generally once every 1.5 - 2 hours. After the ceramic nozzle 1 is replaced, it needs to be heated manually by a flame spray gun. When it is heated to the working temperature, the aluminum powder production operation starts. At this time, it still needs to be continuously heated manually for a period of time until the production process is stable. Once the ceramic nozzle is not sealed well, aluminum liquid will spray out from the seal, causing harm to the heating operator. Therefore, a device capable of automatically heating the ceramic nozzle is needed. Summary of the Utility Model

[0004] In order to solve the above problems existing in the existing ceramic nozzle heating method, the utility model provides a device for automatically heating an aluminum powder nozzle.

[0005] The technical solution adopted by the utility model to achieve the above purpose is: a device for automatically heating an aluminum powder nozzle, a cylinder 10 is installed on a base 3, the end of a cylinder rod 13 of the cylinder 10 is connected to a push-pull rod 14, the push-pull rod 14 is connected to the middle of a driving connecting plate 16 through a push-pull rod rotating shaft 17, the front end of the driving connecting plate 16 is connected to the upper part of an electromagnetic heating swing arm 8, the rear end of the driving connecting plate 16 is installed on the base 3 through a connecting plate rotating shaft 18, the lower part of the electromagnetic heating swing arm 8 is a hollow structure, and an electromagnetic heating tube 9 is installed on the electromagnetic heating swing arm 8.

[0006] One end of the electromagnetic heating swing arm 8 is installed with end face rock wool 7, and heat insulation rock wool 6 is installed inside the electromagnetic heating swing arm 8.

[0007] The front end of the push-pull rod 14 is a connecting fork 15, and the upper part of the driving connecting plate 16 is installed between the connecting forks 15 through the push-pull rod rotating shaft 17.

[0008] A cushion plate 4 is installed on the lower side of the base 3, and a heat insulation plate 5 is installed between the base 3 and the cushion plate 4.

[0009] The rear end of the cylinder 10 is installed on a cylinder bracket 11 through a cylinder fixing shaft 12, and the cylinder bracket 11 is installed on the base 3.

[0010] The device for automatically heating an aluminum powder nozzle of the present utility model controls the opening and closing of an electromagnetic heating arm through a cylinder. An electromagnetic heating tube is installed inside the electromagnetic heating swing arm, thereby realizing the heating of the ceramic nozzle, eliminating the need for manual heating, having high safety, and good heating effect. Description of the Drawings

[0011] Figure 1 It is a structural diagram of a ceramic nozzle and a metal sleeve.

[0012] Figure 2 It is a three-dimensional structural diagram of the device for automatically heating an aluminum powder nozzle of the present utility model.

[0013] Figure 3 It is a front view of the device for automatically heating an aluminum powder nozzle of the present utility model.

[0014] Figure 4 It is Figure 3 the A-A sectional view of

[0015] Figure 5 It is a top view of the device for automatically heating an aluminum powder nozzle of the present utility model.

[0016] Figure 6 It is an assembly drawing of the device for automatically heating an aluminum powder nozzle of the present utility model.

[0017] Figure 7 It is an assembly drawing of the device for automatically heating an aluminum powder nozzle of the present utility model.

[0018] In the figures: 1. L-shaped ceramic nozzle, 2. Metal sleeve, 3. Base, 4. Pad, 5. Heat insulation board, 6. Heat insulation rock wool, 7. End face rock wool, 8. Electromagnetic heating swing arm, 9. Electromagnetic heating tube, 10. Cylinder, 11. Cylinder bracket, 12. Cylinder fixed shaft, 13. Cylinder rod, 14. Push-pull rod, 15. Connecting fork, 16. Driving connecting plate, 17. Push-pull rod rotating shaft, 18. Connecting plate shaft, 19. Aluminum powder nozzle, 20. Aluminum melting furnace, 21. Aluminum powder cooling tank, 22. Automatic heating device, 23. Nitrogen gas pipeline, 24. Installation table, 25. Rock wool pressing plate. Detailed Embodiment

[0019] The device for automatically heating an aluminum powder nozzle of the present utility model is as Figure 2-5As shown in the figure, the rear end of the cylinder 10 is mounted on the cylinder bracket 11 through the cylinder fixing shaft 12. The cylinder bracket 11 is mounted on the base 3. A cushion plate 4 is mounted on the lower side of the base 3, and a heat insulation plate 5 is mounted between the base 3 and the cushion plate 4. The end of the cylinder rod 13 of the cylinder 10 is connected to the push-pull rod 14. The front end of the push-pull rod 14 is a connecting fork 15. The upper part of the driving connecting plate 16 is mounted between the connecting forks 15 through the push-pull rod rotating shaft 17. The front end of the driving connecting plate 16 is connected to the upper part of the electromagnetic heating swing arm 8. The rear end of the driving connecting plate 16 is mounted on the base 3 through the connecting plate rotating shaft 18. The lower part of the electromagnetic heating swing arm 8 is a hollow structure. An electromagnetic heating tube 9 is mounted on the electromagnetic heating swing arm 8. One end of the electromagnetic heating swing arm 8 is mounted with end face rock wool 7, and heat insulation rock wool 6 is mounted inside the electromagnetic heating swing arm 8.

[0020] The bottom of the cylinder 10 is connected to the cylinder bracket 11 through the cylinder fixing shaft 12, enabling the cylinder 10 to rotate around the cylinder fixing shaft 12. The cylinder rod 13 is connected to the electromagnetic heating swing arm 8 through the push-pull rod 14. When the cylinder rod 13 expands and contracts, a torque force is generated, enabling the electromagnetic heating swing arm 8 to rotate around the connecting plate rotating shaft 18. When the cylinder rod 13 is fully retracted, the electromagnetic heating swing arm 8 is in the open position. When the cylinder rod 13 is fully extended, the electromagnetic heating swing arm 8 is in the closed position, and the closed position is parallel to the base 3. The rotation angle between the open position and the closed position of the electromagnetic heating swing arm 8 is 110°. After the electromagnetic swing arm 8 is closed, the electromagnetic heating completely covers the ceramic nozzle 1 with a metal sleeve. The L-shaped ceramic nozzle 1 is sleeved with a metal sleeve 2, as Figure 1 shown. The metal sleeve 2 is made of 310S stainless steel with good oxidation resistance and corrosion resistance and is made into a tube shape. It is cut in half by laser cutting and tightly sleeved on the outside of the ceramic tube 1, and then welded. The metal sleeve 2 is heated by electromagnetic induction heating. The electromagnetic heating tube 9 can heat the metal sleeve 2 to 1000 - 1100 °C in 50 - 60 seconds. Through the close contact between the metal sleeve 2 and the L-shaped ceramic nozzle 1, the L-shaped ceramic nozzle 1 is quickly heated to about 800 °C by the way of contact heat transfer and thermal radiation. Heat insulation rock wool 6 and a temperature sensor are added in the heating area, and the PID temperature compensation control is used to keep the ceramic tube at a constant temperature. The heat insulation plate 5 is in the middle of the base 3 and the cushion plate 4, playing a role in heat insulation. The electromagnetic heating tube 9 is mounted inside the electromagnetic heating swing arm 8, and the voids are filled with rock wool 6 for heat insulation.

[0021] As Figure 6 and Figure 7As shown in the figure, a fixed mounting table 24 is installed between the aluminum melting furnace 20 and the aluminum powder cooling tank 21. There is a groove on the mounting table 24 below the ceramic nozzle 1, and heat-insulating rock wool 6 is laid in the groove. The heat-insulating rock wool 6 is fixed to the mounting table 24 through the rock wool pressing plate 25 to achieve bottom heat insulation. The automatic heating device 22 is installed on the side of the ceramic nozzle 1. After the cylinder 10 extends and the electromagnetic heating swing arm 8 is closed, the electromagnetic heating swing arm 8 completely covers the ceramic nozzle 1 for heating.

[0022] The operator controls the opening and closing of the electromagnetic heating swing arm 8, as well as the manual input and cut-off of electromagnetic heating, through the automatic heating operation box. In the electromagnetic heating automatic mode, when the electromagnetic heating swing arm 8 is closed, the electromagnetic heater starts to work. After the heating temperature reaches the set temperature and is maintained for a period of time, the electromagnetic heater is turned off.

Claims

1. An apparatus for automatically heating an aluminum powder nozzle, characterized in that: A cylinder (10) is installed on the base (3). The end of the cylinder rod (13) of the cylinder (10) is connected to a push-pull rod (14). The push-pull rod (14) is connected to the middle of a driving connecting plate (16) through a push-pull rod rotating shaft (17). The front end of the driving connecting plate (16) is connected to the upper part of an electromagnetic heating swing arm (8). The rear end of the driving connecting plate (16) is installed on the base (3) through a connecting plate rotating shaft (18). The lower part of the electromagnetic heating swing arm (8) is a hollow structure, and an electromagnetic heating tube (9) is installed on the electromagnetic heating swing arm (8).

2. The device for automatically heating an aluminum powder nozzle according to claim 1, wherein: One end of the electromagnetic heating swing arm (8) is installed with end face rock wool (7), and heat insulation rock wool (6) is installed inside the electromagnetic heating swing arm (8).

3. The device for automatically heating an aluminum powder nozzle according to claim 1, characterized in that: The front end of the push-pull rod (14) is a connecting fork (15), and the upper part of the driving connecting plate (16) is installed between the connecting forks (15) through a push-pull rod rotating shaft (17).

4. The device for automatically heating an aluminum powder nozzle according to claim 1, characterized in that: A backing plate (4) is installed on the lower side of the base (3), and a heat insulation plate (5) is installed between the base (3) and the backing plate (4).

5. The device for automatically heating an aluminum powder nozzle according to claim 1, wherein: The rear end of the cylinder (10) is installed on a cylinder bracket (11) through a cylinder fixing shaft (12), and the cylinder bracket (11) is installed on the base (3).

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