Aluminum alloy profile heat treatment apparatus

Abstract

The utility model discloses an aluminum alloy section bar heat treatment equipment, including heating furnace body, the upper end one side of heating furnace body is connected with exhaust pipe, installs the heat exchanger on the exhaust pipe, one end of heat exchanger is connected with hot gas delivery mechanism, one end of hot gas delivery mechanism is connected in the upper end middle part of heating furnace body, one end of heating furnace body is connected with two fixed tubes, one end of fixed tube is connected with hot -blast circulating system, one end of hot -blast circulating system is connected with two second nozzles. The utility model eliminates the hot dead angle, makes the temperature in the heating furnace body more uniform, improves the heat treatment quality of aluminum alloy section bar, guarantees the dimensional accuracy and shape stability of product, improves the utilization efficiency of energy, reduces the waste of energy, improves production efficiency, reduces production cost, can effectively heat treatment to the aluminum alloy section bar of different thickness, expands the applicable range of equipment.

Description

Technical Field

[0001] This utility model relates to the field of heat treatment technology for aluminum alloy profiles, and in particular to a heat treatment device for aluminum alloy profiles. Background Technology

[0002] In the heat treatment process of aluminum alloy profiles, the overall high-temperature heating method is usually adopted. Traditional equipment relies on a single hot air circulation system, which results in a slow heating rate and cannot quickly heat the aluminum alloy profile to the required temperature. Moreover, the problem of poor temperature uniformity is also very prominent, with large temperature differences in different parts of the aluminum alloy profile. This will affect the heat treatment quality of the profile, resulting in unstable product performance and a thermal efficiency of less than 40%. To address these issues, we propose a heat treatment equipment for aluminum alloy profiles. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a heat treatment device for aluminum alloy profiles.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A heat treatment device for aluminum alloy profiles includes a heating furnace body. An exhaust pipe is connected to one side of the upper end of the heating furnace body. A heat exchanger is installed on the exhaust pipe. One end of the heat exchanger is connected to a hot gas conveying mechanism. One end of the hot gas conveying mechanism is connected to the middle of the upper end of the heating furnace body. Two fixed pipes are connected to one end of the heating furnace body. A hot air circulation mechanism is connected to one end of the fixed pipes. Two second nozzles are connected to one end of the hot air circulation mechanism. The two second nozzles on the same side are arranged at one end of the heating furnace body. Multiple second nozzles are connected to one end of the second nozzles. The second nozzles on the two second nozzles on the same side are all inclined.

[0006] Preferably, the hot gas conveying mechanism includes a first exhaust fan installed on one side of the heat exchanger, one end of the first exhaust fan is connected to a first connecting pipe, one end of the first connecting pipe is connected to a first spray pipe, and a plurality of first nozzles are connected at equal intervals at the lower end of the first spray pipe, the lower end of the first nozzles penetrating the side wall of the heating furnace body and extending into the heating furnace body.

[0007] Preferably, the hot air circulation mechanism includes a second exhaust fan connected to one end of a fixed pipe, one end of the second exhaust fan being connected to a circulation pipe, one end of the circulation pipe being connected to a diversion box, one end of the diversion box being connected to a first conveying pipe and a second conveying pipe, and one end of the first conveying pipe and the second conveying pipe being respectively connected to one end of two second nozzles.

[0008] Preferably, a support frame is fixed on one side of the heating furnace body, and the lower end of the second exhaust fan is fixed on the support frame.

[0009] Preferably, an electric valve is installed at one end of both the first and second conveying pipes.

[0010] In this utility model, during processing:

[0011] 1. Heating and exhaust gas treatment: The aluminum alloy profile is placed inside the heating furnace. The main heating zone adopts infrared radiation heating mode, and the temperature is controlled at 500-570℃. The exhaust gas generated during the heating process is discharged through the exhaust pipe. The heat exchanger installed on the exhaust pipe recovers and utilizes the heat energy in the exhaust gas.

[0012] 2. Hot air conveying: The hot air conveying mechanism starts to work. The first exhaust fan draws out the hot air recovered by the heat exchanger and conveys it to the first nozzle through the first connecting pipe. Then, the hot air is introduced into the top of the heating furnace body by multiple first nozzles at the lower end of the first nozzle for auxiliary blowing.

[0013] 3. Hot air circulation: Two fixed pipes at one end of the heating furnace body lead out the hot air from the furnace. The second exhaust fan delivers the hot air to the distribution box through the circulation pipe. The distribution box delivers the hot air to the two second nozzles through the first and second conveying pipes respectively. Finally, the hot air is sent back to the heating furnace body by multiple second nozzles at one end of the second nozzles, forming a hot air circulation on both sides.

[0014] 4. Flow control: Electric valves are installed on both the first and second conveying pipes, which can adjust the flow rate of hot air according to actual needs to ensure the temperature uniformity and stability inside the heating furnace body. The heat dead zone is eliminated by circulation on both sides and blowing from the top conveyor.

[0015] This utility model has the following advantages:

[0016] 1. The combined use of hot air circulation and hot air conveying mechanisms on both sides eliminates thermal dead zones, making the temperature inside the heating furnace more uniform, improving the heat treatment quality of aluminum alloy profiles, reducing quenching deformation by 80%, and ensuring the dimensional accuracy and shape stability of the products.

[0017] 2. It can effectively heat treat aluminum alloy profiles of different thicknesses, thus expanding the applicability of the equipment;

[0018] 3. The waste gas heat energy recycling rate reaches 45%, which improves energy utilization efficiency, reduces energy waste, shortens the heating cycle by 20%, improves production efficiency, and reduces production costs.

[0019] In summary, this invention eliminates thermal dead zones, making the temperature inside the heating furnace more uniform, improving the heat treatment quality of aluminum alloy profiles, ensuring the dimensional accuracy and shape stability of the products, improving energy utilization efficiency, reducing energy waste, increasing production efficiency, reducing production costs, and enabling effective heat treatment of aluminum alloy profiles of different thicknesses, thus expanding the applicability of the equipment. Attached Figure Description

[0020] Figure 1 This is a structural diagram of the present invention;

[0021] Figure 2 This is a structural diagram of the hot air circulation mechanism of this utility model;

[0022] Figure 3 The diagram shows the structure of the first nozzle of this utility model.

[0023] In the figure: 1 Heating furnace body, 2 First spray pipe, 3 First connecting pipe, 4 First exhaust fan, 5 Heat exchanger, 6 Exhaust pipe, 7 Fixed pipe, 8 Second exhaust fan, 9 Circulation pipe, 10 Support frame, 11 Diverter box, 12 First conveying pipe, 13 Electric valve, 14 Second spray pipe, 15 Second nozzle, 16 Second conveying pipe, 17 First nozzle. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figure 1-3 A heat treatment device for aluminum alloy profiles includes a heating furnace body 1. An exhaust pipe 6 is connected to one side of the upper end of the heating furnace body 1. The exhaust pipe 6 is made of high temperature and corrosion resistant stainless steel to ensure that it will not be damaged during the high temperature exhaust gas emission process and to ensure the smoothness of exhaust gas emission.

[0026] A heat exchanger 5 is installed on the exhaust pipe 6. The heat exchanger 5 can recover and utilize the heat energy in the exhaust gas. One end of the heat exchanger 5 is connected to a hot air conveying mechanism. One end of the hot air conveying mechanism is connected to the upper middle part of the heating furnace body 1. One end of the heating furnace body 1 is connected to two fixed pipes 7. One end of the fixed pipes 7 is connected to a hot air circulation mechanism. One end of the hot air circulation mechanism is connected to two second nozzles 14. The two second nozzles 14 on the same side are set at one end of the heating furnace body 1. One end of the second nozzles 14 is connected to multiple second nozzles 15. The second nozzles 15 on the two second nozzles 14 on the same side are all inclined. The inclination angle of the second nozzles 15 is 30°-45°, which can make the hot air blow towards the aluminum alloy profile at a better angle, enhance the contact effect between the hot air and the profile, and improve the uniformity of heating.

[0027] The hot air conveying mechanism includes a first exhaust fan 4 installed on one side of the heat exchanger 5. The first exhaust fan 4 can ensure that the hot air recovered by the heat exchanger 5 is extracted quickly and stably. Its power is adjusted according to the size of the heating furnace body 1 and the amount of exhaust gas generated.

[0028] One end of the first exhaust fan 4 is connected to the first connecting pipe 3, and one end of the first connecting pipe 3 is connected to the first spray pipe 2. The lower end of the first spray pipe 2 is connected to multiple first nozzles 17 at equal intervals. The lower end of the first nozzles 17 penetrates the side wall of the heating furnace body 1 and extends into the heating furnace body 1. The waste gas heat energy recycling rate reaches 45%, which improves energy utilization efficiency, reduces energy waste, shortens the heating cycle by 20%, improves production efficiency, and reduces production costs.

[0029] The hot air circulation mechanism includes a second exhaust fan 8 connected to one end of the fixed pipe 7, a circulation pipe 9 connected to one end of the second exhaust fan 8, a distribution box 11 connected to one end of the circulation pipe 9, and a first conveying pipe 12 and a second conveying pipe 16 connected to one end of the distribution box 11. During the hot air circulation process, the circulation pipe 9, the first conveying pipe 12, and the second conveying pipe 16 are all wrapped with heat insulation material, which reduces the heat loss of hot air during the conveying process and improves the efficiency of hot air circulation.

[0030] One end of the first conveying pipe 12 and the second conveying pipe 16 are respectively connected to one end of the two second nozzles 14. The combined use of hot air circulation and hot gas conveying mechanism on both sides eliminates the thermal dead zone, makes the temperature inside the heating furnace more uniform, improves the heat treatment quality of aluminum alloy profiles, reduces quenching deformation by 80%, and ensures the dimensional accuracy and shape stability of the product.

[0031] A support frame 10 is fixed on one side of the heating furnace body 1. The lower end of the second exhaust fan 8 is fixed on the support frame 10, which can stably support the weight of the second exhaust fan 8 and ensure that it will not shake during operation, thus ensuring the stability of hot air circulation.

[0032] An electric valve 13 is installed at one end of both the first conveying pipe 12 and the second conveying pipe 16. The electric valve 13 is a high-precision control valve that can accurately adjust the flow rate of hot air, and its control accuracy can reach ±5%.

[0033] In this utility model, during processing:

[0034] 1. Heating and exhaust gas treatment: The aluminum alloy profile is placed inside the heating furnace body 1. The main heating zone adopts infrared radiation heating mode, and the temperature is controlled at 500-570℃. The exhaust gas generated during the heating process is discharged through the exhaust pipe 6. The heat exchanger 5 installed on the exhaust pipe 6 recovers and utilizes the heat energy in the exhaust gas.

[0035] 2. Hot air delivery: The hot air delivery mechanism starts to work. The first exhaust fan 4 extracts the hot air recovered by the heat exchanger 5 and delivers it to the first nozzle 2 through the first connecting pipe 3. Then, the hot air is input into the top of the heating furnace body 1 by multiple first nozzles 17 at the lower end of the first nozzle 2 for auxiliary blowing.

[0036] 3. Hot air circulation: Two fixed pipes 7 at one end of the heating furnace body 1 draw out the hot air from the furnace. The second exhaust fan 8 delivers the hot air to the distribution box 11 through the circulation pipe 9. The distribution box 11 delivers the hot air to the two second nozzles 14 through the first conveying pipe 12 and the second conveying pipe 16 respectively. Finally, the hot air is sent back into the heating furnace body 1 by multiple second nozzles 15 at one end of the second nozzles 14, forming a hot air circulation on both sides.

[0037] 4. Flow control: Electric valves 13 are installed on both the first conveying pipe 12 and the second conveying pipe 16. The flow rate of hot air can be adjusted according to actual needs to ensure the temperature uniformity and stability inside the heating furnace. Thermal dead zones are eliminated by circulation on both sides and blowing from the top. The temperature of different areas inside the heating furnace is monitored in real time by sensors. The opening of the electric valves 13 is automatically adjusted according to the temperature feedback information to ensure the temperature uniformity and stability inside the heating furnace. Thermal dead zones are eliminated by circulation on both sides and blowing from the top. The flow control adopts an automated control system, which can realize real-time and precise flow regulation, improving the intelligence level of the equipment and the stability of production.

[0038] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A heat treatment device for aluminum alloy profiles, comprising a heating furnace body (1), characterized in that, An exhaust pipe (6) is connected to one side of the upper end of the heating furnace body (1). A heat exchanger (5) is installed on the exhaust pipe (6). A hot air conveying mechanism is connected to one end of the heat exchanger (5). One end of the hot air conveying mechanism is connected to the middle of the upper end of the heating furnace body (1). Two fixed pipes (7) are connected to one end of the heating furnace body (1). A hot air circulation mechanism is connected to one end of the fixed pipe (7). Two second nozzles (14) are connected to one end of the hot air circulation mechanism. Two second nozzles (14) are set on the same side of the heating furnace body (1). Multiple second nozzles (15) are connected to one end of the second nozzles (14). The second nozzles (15) on the two second nozzles (14) on the same side are all inclined.

2. The heat treatment equipment for aluminum alloy profiles according to claim 1, characterized in that: The hot gas conveying mechanism includes a first exhaust fan (4) installed on one side of the heat exchanger (5). One end of the first exhaust fan (4) is connected to a first connecting pipe (3). One end of the first connecting pipe (3) is connected to a first nozzle (2). The lower end of the first nozzle (2) is connected to a plurality of first nozzles (17) at equal intervals. The lower end of the first nozzles (17) penetrates the side wall of the heating furnace body (1) and extends into the heating furnace body (1).

3. The heat treatment equipment for aluminum alloy profiles according to claim 1, characterized in that: The hot air circulation mechanism includes a second exhaust fan (8) connected to one end of a fixed pipe (7), a circulation pipe (9) connected to one end of the second exhaust fan (8), a diversion box (11) connected to one end of the circulation pipe (9), a first delivery pipe (12) and a second delivery pipe (16) connected to one end of the diversion box (11), and one end of the first delivery pipe (12) and the second delivery pipe (16) respectively connected to one end of two second nozzles (14).

4. The heat treatment equipment for aluminum alloy profiles according to claim 3, characterized in that: A support frame (10) is fixed on one side of the heating furnace body (1), and the lower end of the second exhaust fan (8) is fixed on the support frame (10).

5. The heat treatment equipment for aluminum alloy profiles according to claim 3, characterized in that: An electric valve (13) is installed at one end of both the first delivery pipe (12) and the second delivery pipe (16).

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