Efficient preheating and adding device for aluminum-titanium-boron wire rod

Abstract

The utility model discloses an aluminum-titanium-boron wire rod efficient preheating and adding device which comprises a preheating mechanism and a chute, the preheating mechanism comprises a combustion chamber, an igniter is arranged on the combustion chamber in a penetrating mode, a gas input pipe is arranged at one end of the combustion chamber, a preheating pipe is arranged at the other end of the combustion chamber, and an ejector mechanism is arranged on the preheating pipe. A natural gas input pipe is arranged on the compressed air input pipe, an inlet is formed in the side wall of the combustion chamber in a penetrating mode, and an outlet is formed in the end, away from the combustion chamber, of the preheating pipe in a penetrating mode. Natural gas is used as an energy medium, automatic control equipment such as the temperature sensor, the electromagnetic valve and the temperature controller is introduced, the preheating temperature of the aluminum-titanium-boron wire rod can be adjusted and automatically controlled, the preheating effect of the aluminum-titanium-boron wire rod is improved through the ejector, and field verification shows that the device is safe, reliable, efficient, low in use cost and suitable for popularization and application. And the preheating effect on the aluminum-titanium-boron wire rod is good, and the high field application value is embodied.

Description

Technical Field

[0001] This utility model belongs to the field of aluminum alloy casting and rolling production, specifically relating to an efficient preheating and additive device for aluminum-titanium-boron wire rods. Background Technology

[0002] Aluminum-titanium-boron (ATiB) grain refiners are important raw and auxiliary materials in the aluminum alloy casting and rolling process. They play a role in refining grains and are related to the metallurgical quality of the cast and rolled strip. They are usually added online in the form of ATiB wire rods. To better integrate the ATiB wire rods into the aluminum melt, they are usually added after preheating to ensure the refining effect of the effective components of the grain refiner.

[0003] Because there is currently no standardized equipment for preheating aluminum-titanium-boron wire rods in the aluminum alloy casting and rolling industry, the equipment used by various aluminum processing plants varies. Most manufacturers use natural gas torches to directly bake the aluminum-titanium-boron wire rods, resulting in inconsistent equipment levels. Some factories also face the risk of fire in their preheating equipment due to design flaws, resulting in low energy efficiency and poor preheating effect. Utility Model Content

[0004] The purpose of this invention is to provide an efficient preheating and adding device for aluminum-titanium-boron wire rods to solve the above-mentioned problems.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A high-efficiency preheating and adding device for aluminum-titanium-boron wire rods includes a preheating mechanism and a chute. The preheating mechanism includes a combustion chamber with an igniter installed on it. A gas input pipe is installed at one end of the combustion chamber, and a preheating pipe is installed at the other end. An ejector mechanism is installed on the preheating pipe. The gas input pipe has a compressed air input pipe at its inlet end, and a natural gas input pipe is installed on the compressed air input pipe. An inlet is installed on the side wall of the combustion chamber, and an outlet is installed at the end of the preheating pipe away from the combustion chamber.

[0007] To further realize this utility model, a set of transmission wheels is provided outside the inlet, and a power mechanism is provided on the transmission wheels; a set of traction wheels is provided outside the outlet; and a curved guide tube is provided on the chute.

[0008] To further realize this utility model, the ejector mechanism includes an ejector, the bottom surface of which is provided with an ejection port communicating with the side wall of the preheating tube, one end of which is provided with an air inlet, and the other end with an exhaust port. The ejector mechanism introduces the high-temperature gas generated in the combustion chamber into the preheating tube, realizing long-distance heating of the aluminum-titanium-boron rod and further improving the preheating effect.

[0009] To further realize this utility model, a regulating valve I is provided on the compressed air input pipe, a regulating valve II is provided on the natural gas input pipe, and a solenoid valve is provided on the gas input pipe.

[0010] To further realize this utility model, a temperature sensor is installed in the combustion chamber, and the temperature sensor is connected to a solenoid valve through a temperature controller. This enables adjustable and automatic control of the preheating temperature of the aluminum-titanium-boron coil, typically with the temperature controller set between 400-600℃.

[0011] To further realize this utility model, the compressed air input pipe, gas input pipe, and preheating pipe are parallel to the ground, and the natural gas input pipe is located below the compressed air input pipe, with an angle of 30-60° between the natural gas input pipe and the compressed air input pipe. The high temperature generated by the gas in the combustion chamber is used to heat the aluminum-titanium-boron rod, achieving the function of preheating the titanium-boron rod.

[0012] To further realize this utility model, a signal line is provided between the temperature controller and the solenoid valve.

[0013] To further realize this utility model, a support frame is provided between the curved guide tube and the wall of the chute.

[0014] To further realize this utility model, a sealing cotton is provided inside the outlet.

[0015] To further realize this utility model, the ejector port is a flared structure, and the diameter of the end of the ejector port connected to the preheating pipe is larger than the diameter of the end of the ejector port connected to the ejector.

[0016] The advantages of this utility model compared to the prior art are as follows:

[0017] The preheating mechanism of this invention includes a gas input pipe, a compressed air input pipe, and a natural gas input pipe. The natural gas input pipe is connected to the compressed air input pipe at a certain angle. The compressed air input pipe and the natural gas input pipe are respectively equipped with regulating valves I and II for adjusting their respective flow rates. A solenoid valve is installed on the gas input pipe to control the flow rate of the mixed gas obtained after the gases from the compressed air input pipe and the natural gas input pipe are combined. The end of the compressed air input pipe is connected to the combustion chamber. Natural gas and compressed air mixed in a certain proportion enter the combustion chamber. The combustion chamber is equipped with a temperature controller, a temperature sensor, and an igniter. The temperature sensor and the solenoid valve are connected via a signal line to achieve automatic control of the preheating temperature. An inlet is reserved at the bottom of the combustion chamber. A titanium boron rod enters the inlet through a transmission wheel and then passes through the combustion chamber. After preliminary preheating in the combustion chamber, the titanium boron rod enters the preheating pipe. The ejector mechanism is fixed near the tail of the preheating pipe. The ejector system includes an ejector, an air inlet, an exhaust outlet, and an ejector port. Sealing cotton is provided between the outlet at the end of the preheating pipe and the titanium boron rod to improve the sealing and insulation effect of the preheating pipe. After exiting the combustion chamber, the aluminum-titanium-boron (ATB) rod passes through the traction wheel and then into the curved guide tube, entering the chute. The traction wheel is equipped with a power mechanism to pull the ATB rod. The curved guide tube is fixed to the side wall of the chute by a support frame, and the ATB rod is guided into the chute by the guiding effect of the curved guide tube.

[0018] This invention addresses a common problem prevalent in the current aluminum alloy casting and rolling industry by using relatively low-cost natural gas as the energy medium. A certain ratio of natural gas to compressed air is used to preheat the aluminum-titanium-boron (ATB) wire rods in a combustion chamber. The combustion chamber is equipped with a temperature controller, temperature sensor, and igniter. The temperature sensor and solenoid valve are connected via signal lines to achieve automatic control of the preheating temperature. After initial preheating in the combustion chamber, the ATB wire rods enter the preheating pipe. An ejector system is fixed at the end of the preheating pipe, drawing high-temperature combustion gas into the preheating pipe for further heating of the ATB wire rods. The preheated ATB wire rods are then guided into a chute via a traction wheel and a curved guide tube.

[0019] This invention, tailored to the specific conditions of the aluminum alloy casting and rolling industry, utilizes relatively low-cost natural gas as the energy medium. It incorporates automatic control equipment such as temperature sensors, solenoid valves, and temperature controllers to achieve adjustable and automatic control of the preheating temperature of aluminum-titanium-boron (ATB) wire rods. Simultaneously, an ejector is used to enhance the preheating effect. Field verification has shown that this invention is safe, reliable, efficient, and cost-effective, providing excellent preheating results for ATB wire rods and demonstrating high practical application value. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 for Figure 1 A sectional view;

[0022] Figure 3 This is a schematic diagram of the ejector mechanism in this utility model;

[0023] The meanings of the reference numerals in the attached diagram are as follows: 1. Chute; 2. Combustion chamber; 3. Ignition device; 4. Gas input pipe; 5. Preheating pipe; 6. Ejector mechanism; 6-1. Ejector; 6-2. Ejector port; 6-3. Air inlet; 6-4. Exhaust port; 7. Compressed air input pipe; 8. Natural gas input pipe; 9. Inlet; 10. Outlet; 11. Drive wheel; 12. Traction wheel; 13. Bent conduit; 14. Regulating valve I; 15. Regulating valve II; 16. Solenoid valve; 17. Temperature sensor; 18. Temperature controller; 19. Signal line; 20. Along the wall; 21. Support frame; 22. Sealing cotton; 23. Aluminum-titanium-boron wire rod. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] like Figure 1-3 As shown, an efficient preheating and adding device for aluminum-titanium-boron wire rods includes a preheating mechanism and a chute 1. The preheating mechanism includes a combustion chamber 2, an igniter 3 passing through the combustion chamber 2, a gas input pipe 4 at one end of the combustion chamber 2, and a preheating pipe 5 at the other end of the combustion chamber 2. An ejector mechanism 6 is installed on the preheating pipe 5. A compressed air input pipe 7 is installed at the inlet end of the gas input pipe 4, and a natural gas input pipe 8 is installed on the compressed air input pipe 7. The compressed air input pipe 7, the gas input pipe 4, and the preheating pipe 5 are parallel to the ground. The natural gas input pipe 8 is located below the compressed air input pipe 7, and the angle between the natural gas input pipe 8 and the compressed air input pipe 7 is 30-60°. An adjustment mechanism is installed on the compressed air input pipe 7. Valve I 14, regulating valve II 15 is installed on natural gas input pipe 8, solenoid valve 16 is installed on gas input pipe 4, inlet 9 is installed on the side wall of combustion chamber 2, temperature sensor 17 is installed in combustion chamber 2, temperature sensor 17 is connected to solenoid valve 16 through temperature controller 18, signal line 19 is installed between temperature controller 18 and solenoid valve 16, outlet 10 is installed at the end of preheating pipe 5 away from combustion chamber 2, sealing cotton 22 is installed in outlet 10, a set of drive wheels 11 is installed outside inlet 9, a power mechanism is installed on drive wheels 11, a set of traction wheels 12 is installed outside outlet 10, bent pipe 13 is installed on chute 1, support frame 21 is installed between bent pipe 13 and the wall 20 of chute 1.

[0026] The ejector mechanism 6 includes an ejector 6-1. The bottom surface of the ejector 6-1 is provided with an ejector port 6-2 that communicates with the side wall of the preheating pipe 5. One end of the ejector 6-1 is provided with an air inlet 6-3 and the other end is provided with an exhaust port 6-4. The ejector port 6-2 has a flared structure. The diameter of the end of the ejector port 6-2 that communicates with the preheating pipe 5 is larger than the diameter of the end of the ejector port 6-2 that communicates with the ejector 6-1.

[0027] Before preheating, the aluminum-titanium-boron rod 23 is passed through the transmission wheel 11 and enters the combustion chamber 2 from the inlet 9. Then, it is manually pulled through the preheating pipe 5, outlet 10, traction wheel 12 and curved guide tube 13, so that the aluminum-titanium-boron rod 23 is finally introduced into the chute 1. Then, the drive motor of the traction wheel 12 is turned on to continuously add aluminum-titanium-boron rod 23. The running speed of the aluminum-titanium-boron rod 23 is adjusted according to actual needs.

[0028] After the aluminum-titanium-boron pole 23 is installed in place, first open the regulating valve I14 on the compressed air input pipe 7, and then open the regulating valve II15 on the natural gas input pipe 8. The natural gas input pipe 8 is connected to the compressed air input pipe 7 at an angle of 30-60°. The ratio of compressed air to natural gas flow is 10.5:1. The mixed gas enters the gas delivery pipe 4 and enters the combustion chamber 2 under the control of the solenoid valve 16. The igniter 3 ignites the mixed gas and stabilizes the combustion. The temperature of the temperature controller 18 is set at a value between 400-600℃. The temperature is monitored by the temperature controller 18, signal line 19 and temperature sensor 17, and the flow is controlled by the solenoid valve 16 to automatically control the temperature of the combustion chamber 2 within the set range.

[0029] The preheating pipe 5 is fixed on the other side of the combustion chamber 2 corresponding to the gas input pipe 4. The ejector mechanism 6 is fixed near the tail of the preheating pipe 5. After the combustion chamber 2 is stably burning, compressed air is connected to the air inlet 6-3 to start the ejector mechanism 6, which introduces the heat flow in the combustion chamber 2 into the preheating pipe 5. A sealing cotton 22 is provided between the pipe wall of the outlet 10 of the preheating pipe 5 and the aluminum-titanium-boron wire rod 23 to prevent the heat flow from overflowing. The preheated aluminum-titanium-boron wire rod 23 is driven into the curved guide tube 13 by the traction wheel 12 and finally enters the chute 1.

Claims

1. A high-efficiency preheating and adding device for aluminum-titanium-boron wire rods, characterized in that: The device includes a preheating mechanism and a chute (1). The preheating mechanism includes a combustion chamber (2), an igniter (3) is installed on the combustion chamber (2), a gas input pipe (4) is installed at one end of the combustion chamber (2), a preheating pipe (5) is installed at the other end of the combustion chamber (2), an ejector mechanism (6) is installed on the preheating pipe (5), a compressed air input pipe (7) is installed at the inlet end of the gas input pipe (4), a natural gas input pipe (8) is installed on the compressed air input pipe (7), an inlet (9) is installed on the side wall of the combustion chamber (2), and an outlet (10) is installed at the end of the preheating pipe (5) away from the combustion chamber (2).

2. The high-efficiency preheating and adding device for aluminum-titanium-boron wire rods as described in claim 1, characterized in that: A set of transmission wheels (11) is provided outside the inlet (9), and a power mechanism is provided on the transmission wheels (11). A set of traction wheels (12) is provided outside the outlet (10), and a curved guide tube (13) is provided on the chute (1).

3. The high-efficiency preheating and adding device for aluminum-titanium-boron wire rods as described in claim 2, characterized in that: The ejector mechanism (6) includes an ejector (6-1), the bottom surface of the ejector (6-1) is provided with an ejector port (6-2) that communicates with the side wall of the preheating pipe (5), one end of the ejector (6-1) is provided with an air inlet (6-3), and the other end is provided with an exhaust port (6-4).

4. The high-efficiency preheating and adding device for aluminum-titanium-boron wire rods as described in claim 3, characterized in that: A regulating valve I (14) is installed on the compressed air input pipe (7), a regulating valve II (15) is installed on the natural gas input pipe (8), and a solenoid valve (16) is installed on the gas input pipe (4).

5. The high-efficiency preheating and adding device for aluminum-titanium-boron wire rods as described in claim 4, characterized in that: A temperature sensor (17) is installed in the combustion chamber (2), and the temperature sensor (17) is connected to the solenoid valve (16) through the temperature controller (18).

6. The high-efficiency preheating and adding device for aluminum-titanium-boron wire rods as described in claim 5, characterized in that: The compressed air input pipe (7), gas input pipe (4) and preheating pipe (5) are parallel to the ground. The natural gas input pipe (8) is located below the compressed air input pipe (7). The angle between the natural gas input pipe (8) and the compressed air input pipe (7) is 30-60°.

7. The high-efficiency preheating and adding device for aluminum-titanium-boron wire rods as described in claim 6, characterized in that: A signal line (19) is provided between the temperature controller (18) and the solenoid valve (16).

8. The high-efficiency preheating and adding device for aluminum-titanium-boron wire rods as described in claim 7, characterized in that: A support frame (21) is provided between the curved guide tube (13) and the chute (1) along the wall (20).

9. The high-efficiency preheating and adding device for aluminum-titanium-boron wire rods as described in claim 8, characterized in that: A sealing cotton (22) is installed inside the outlet (10).

10. The high-efficiency preheating and adding device for aluminum-titanium-boron wire rods as described in claim 9, characterized in that: The ejector port (6-2) has a flared structure, and the diameter of the end of the ejector port (6-2) connected to the preheating pipe (5) is greater than the diameter of the end of the ejector port (6-2) connected to the ejector (6-1).

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