Integrated multiple circulating air heating device for aluminum alloy heat treatment furnace

Abstract

This application relates to the field of circulating air heaters and discloses an integrated aluminum alloy heat treatment furnace multi-circulating air heating device, including an air inlet pipe and a rotating disk. One end of the air inlet pipe is connected to a circulating air heating box, and one end of the circulating air heating box is connected to an air outlet pipe. The center of the air outlet pipe and the center of the air inlet pipe are on the same straight line. Several mounting brackets are slidably installed on the inner wall of the rotating disk. A filter frame is snapped into the inner wall of the mounting bracket. The inner wall of the filter frame has a storage groove. The surface of the rotating disk is rotatably installed on the inner wall of the air inlet pipe. Several mounting brackets are arranged in a circular array with the center of the rotating disk as the axis. This application installs the rotating disk on the inner wall of the air inlet pipe. The inner wall of the rotating disk is connected to the filter frame through the mounting bracket. The inner wall of the filter frame has a storage groove and filter holes, so as to filter the airflow entering the air inlet pipe by means of the filter frame. The mounting brackets can be easily replaced by rotating the rotating disk.

Description

Technical Field

[0001] This application relates to the field of circulating air heaters, and more particularly to a multi-circulating air heating device for an integrated aluminum alloy heat treatment furnace. Background Technology

[0002] A circulating air heater is an electric heating device mainly used to heat gas flow. Its core component is a stainless steel electric heating tube. These heating tubes contain heating wires, and the gaps are filled with magnesium oxide powder, which has good thermal conductivity and insulation. When current passes through the heating wires, the generated heat is transferred to the surface of the metal tube through the magnesium oxide powder, and then to the gas being heated, thereby achieving the heating purpose. The working principle of the circulating air heater is based on resistance heating. High-temperature resistance wires are evenly distributed inside a high-temperature resistant stainless steel seamless tube. When the resistance wires are energized, they generate heat, which is conducted to the surface of the metal tube through the magnesium oxide powder, and finally transferred to the gas being heated. This structure not only has high thermal efficiency, but also uniform heating. Circulating air heaters are often used in aluminum alloy heat treatment furnaces. In conventional circulating air heaters, one end of the air inlet pipe is connected to a fan. The fan generates airflow into the circulating air heating box. The circulating air heating box heats the incoming airflow with the help of the heating tubes, and then the air outlet pipe connects to the heat treatment furnace. After use, the hot air is circulated back into the air inlet pipe to reduce the power consumption of the circulating air heating box.

[0003] Regarding the aforementioned technologies, the inventors believe that in the process of using conventional circulating air heaters, since the hot air needs to be circulated, the airflow can easily carry impurities from the circulating air heating box into the circulating air heating box, causing the surface of the heating tube to be easily contaminated with more impurities, affecting the heating effect of the heating tube, and thus affecting the heating effect of the heat treatment furnace.

[0004] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Utility Model Content

[0005] To address the issue of impurities in the circulating airflow of a circulating air heater, this application provides an integrated multi-circulating air heating device for an aluminum alloy heat treatment furnace.

[0006] The integrated aluminum alloy heat treatment furnace multi-circulation air heating device provided in this application adopts the following technical solution:

[0007] An integrated aluminum alloy heat treatment furnace with a multi-circulating air heating device includes an air inlet pipe and a rotating disk. One end of the air inlet pipe is connected to a circulating air heating box, and one end of the circulating air heating box is connected to an air outlet pipe. The center of the air outlet pipe and the center of the air inlet pipe are on the same straight line. Several mounting brackets are slidably installed on the inner wall of the rotating disk. Filter frames are snapped into the inner walls of the mounting brackets. The inner walls of the filter frames have storage grooves. The surface of the rotating disk is rotatably mounted to the inner wall of the air inlet pipe. The mounting brackets are arranged in a circular array around the center of the rotating disk. Several filter holes are evenly distributed inside the filter frames.

[0008] Preferably, a filter screen is movably installed on one side of the filter frame, and the dimensions of the filter screen surface are adapted to the dimensions of one side of the filter frame.

[0009] Preferably, the inner walls of the filter frame and the filter screen are each secured with a number of fixing bolts, and the surface of the fixing bolts is threaded with a fixing block, one side of which is movably connected to the surface of the filter screen.

[0010] Preferably, a shielding ring is fixedly installed on the surface of several of the fixing blocks. The shielding ring is a silicate board, and the surface of the shielding ring is fixedly installed on the inner wall of the mounting frame. The size and specifications of the inner wall of the shielding ring are adapted to the size and specifications of the inner wall of the air inlet pipe.

[0011] Preferably, the surface of the rotating disk is provided with a plurality of limiting slots, the plurality of limiting slots are arranged in a circular array with the center of the rotating disk as the axis, and the inner wall of the limiting slots is engaged with two limiting frames, the surface of the limiting frames being rotatably mounted to the inner wall of the rotating disk.

[0012] Preferably, a spring is fixedly connected between the two limiting frames, and the dimensions of the limiting frame surface are compatible with the dimensions of the inner wall of the limiting slot.

[0013] Preferably, two support wheels are slidably mounted on the bottom end of the rotating disk, the two support wheels are symmetrically distributed about the rotating disk as an axis, and the surfaces of the two support wheels are rotatably connected to a fixed frame.

[0014] In summary, this application includes the following beneficial technical effects:

[0015] By mounting a rotating disc on the inner wall of the air inlet duct, and connecting a filter frame to the inner wall of the rotating disc via a mounting bracket, the filter frame has storage slots and filter holes on its inner wall to filter the airflow entering the air inlet duct. The mounting bracket can be easily replaced by rotating the rotating disc. A filter screen is installed at one end of the filter frame to enhance the filtration effect. Several fixing bolts are secured inside both the filter frame and the filter screen. Fixing blocks are attached to the surface of the fixing bolts to facilitate disassembly and cleaning of the filter frame and filter screen after separating the fixing blocks from the fixing bolts. Silicate shielding rings are installed on the surface of the several fixing blocks to shield the connection between the air inlet duct and the rotating disc. Compared to existing technologies, this method effectively improves the filtration effect of circulating airflow.

[0016] Several limiting slots can also be made on the surface of the rotating disk. Two limiting brackets are engaged with the inner wall of the limiting slots, so that the mounting bracket can be disassembled by separating the limiting brackets from the limiting slots. A spring is installed between the two limiting brackets so that the limiting brackets are held in engagement with the limiting slots by means of the spring. Two support wheels are slidably connected to the bottom of the rotating disk. Fixed brackets are rotatably connected to the surface of the support wheels so that the bottom of the rotating disk is supported by means of the support wheels; thus effectively improving the use effect of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a multi-circulation air heating device for an integrated aluminum alloy heat treatment furnace according to an embodiment of the application.

[0018] Figure 2 This is a schematic diagram of the rotating disk structure in the embodiment of the application;

[0019] Figure 3 This is a side view of the embodiment of the application.

[0020] Figure 4 This is a schematic diagram of the structure at point A in the embodiment of the application.

[0021] Explanation of reference numerals in the attached drawings: 1. Air inlet duct; 2. Circulating air heating box; 3. Air outlet duct; 4. Rotating disc; 5. Mounting bracket; 6. Filter rack; 7. Storage slot; 8. Filter screen; 9. Fixing block; 10. Fixing bolt; 11. Shielding ring; 12. Limiting slot; 13. Limiting bracket; 14. Spring; 15. Fixing bracket; 16. Support wheel. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1 —4. This application will be described in further detail.

[0023] This application discloses a multi-circulation air heating device for an integrated aluminum alloy heat treatment furnace, referring to... Figure 1 - Figure 2 The system includes an air inlet pipe 1. During use, one end of the air inlet pipe 1 is connected to a fan, which generates airflow that enters the circulating air heating box 2. The circulating air heating box 2 heats the incoming airflow using heating pipes, and then the air outlet pipe 3 connects to the heat treatment furnace. After use, the hot air is circulated back into the air inlet pipe 1, reducing the power consumption of the circulating air heating box 2. A rotating disk 4 is installed on the inner wall of the air inlet pipe 1. A mounting bracket 5 is slidably installed on the inner wall of the rotating disk 4. A filter rack 6 is installed on the inner wall of the mounting bracket 5. The inner wall of the filter rack 6 has a storage groove 7 and filter holes. The filter holes facilitate the removal of larger impurities in the airflow by the filter rack 6, and the storage groove 7 serves to store the filtered impurities. This allows the filter rack 6 to filter the airflow entering the air inlet pipe 1. The rotating disk 4 allows for easy replacement of the mounting bracket 5, avoiding the need to stop the operation of the circulating air heating box 2 to clean the filter rack 6, which would affect the processing efficiency of the circulating air heating box 2.

[0024] Reference Figure 2 A filter screen 8 is installed at one end of the filter frame 6 to block smaller impurities and improve the filtration effect on the airflow. Several fixing bolts 10 are snapped into the inside of both the filter frame 6 and the filter screen 8. Fixing blocks 9 are connected to the surface of the fixing bolts 10 to fix the filter frame 6 and the filter screen 8. After the fixing blocks 9 and the fixing bolts 10 are separated, the filter frame 6 and the filter screen 8 can be disassembled and cleaned. Silicate shielding rings 11 are installed on the surface of the several fixing blocks 9. The surface of the shielding rings 11 is fixedly connected to the inner wall of the mounting frame 5 to shield the connection between the air inlet pipe 1 and the rotating disk 4, thus preventing heat from leaking out from the connection between the air inlet pipe 1 and the rotating disk 4.

[0025] Reference Figure 3 - Figure 4 Several limiting slots 12 are formed on the surface of the rotating disk 4. Two limiting brackets 13 are engaged with the inner wall of the limiting slots 12. The surface of the limiting brackets 13 is rotatably connected to the inner wall of the mounting frame 5, so as to fix the mounting frame 5 to the inner wall of the rotating disk 4 by means of the limiting brackets 13 and the limiting slots 12. The mounting frame 5 can be disassembled by separating the limiting brackets 13 and the limiting slots 12. It is more convenient to disassemble the filter frame 6 and the filter screen 8. A spring 14 is installed between the two limiting brackets 13, so as to push one end of the limiting bracket 13 by means of the spring 14, thereby keeping the limiting bracket 13 engaged with the limiting slots 12, avoiding the problem of the mounting frame 5 loosening due to the separation of the limiting brackets 13 and the limiting slots 12. Two support wheels 16 are slidably connected to the bottom end of the rotating disk 4. The surface of the support wheels 16 is rotatably connected to the fixing bracket 15, so as to support the bottom end of the rotating disk 4 by means of the support wheels 16, thereby making it more convenient when the rotating disk 4 rotates.

[0026] The implementation principle of the multi-circulation air heating device for an integrated aluminum alloy heat treatment furnace in this application embodiment is as follows: A rotating disk 4 is installed on the inner wall of the air inlet pipe 1. The inner wall of the rotating disk 4 is connected to a filter frame 6 via a mounting bracket 5. The inner wall of the filter frame 6 is provided with a storage groove 7 and filter holes to filter the airflow entering the air inlet pipe 1. The mounting bracket 5 can be easily replaced by rotating the rotating disk 4. A filter screen 8 is installed at one end of the filter frame 6 to improve the filtration effect of the airflow. Several fixing bolts 10 are snapped into the inside of the filter frame 6 and the filter screen 8. Fixing blocks 9 are connected to the surface of the fixing bolts 10 to facilitate the disassembly and cleaning of the filter frame 6 and the filter screen 8 after the fixing blocks 9 and the fixing bolts 10 are separated. Silicate shielding rings 11 are installed on the surface of the several fixing blocks 9 to shield the connection between the air inlet pipe 1 and the rotating disk 4.

[0027] Several limiting slots 12 can also be opened on the surface of the rotating disk 4. Two limiting brackets 13 are engaged with the inner wall of the limiting slots 12. The surface of the limiting brackets 13 is rotatably connected to the inner wall of the mounting frame 5, so as to fix the mounting frame 5 to the inner wall of the rotating disk 4 by means of the limiting brackets 13 and the limiting slots 12. The mounting frame 5 can be disassembled by separating the limiting brackets 13 and the limiting slots 12. It is more convenient to disassemble the filter frame 6 and the filter screen 8. A spring 14 is installed between the two limiting brackets 13, so as to push one end of the limiting bracket 13 by means of the spring 14, thereby keeping the limiting bracket 13 engaged with the limiting slots 12, avoiding the problem of the mounting frame 5 loosening due to the separation of the limiting brackets 13 and the limiting slots 12. Two support wheels 16 are slidably connected to the bottom end of the rotating disk 4. The surface of the support wheels 16 is rotatably connected to the fixing bracket 15, so as to support the bottom end of the rotating disk 4 by means of the support wheels 16, thereby making it more convenient when the rotating disk 4 rotates.

[0028] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A multi-circulation air heating device for an integrated aluminum alloy heat treatment furnace, comprising an air inlet pipe (1) and a rotating disc (4), characterized in that: One end of the air inlet pipe (1) is connected to the circulating air heating box (2), and one end of the circulating air heating box (2) is connected to the air outlet pipe (3). The center of the air outlet pipe (3) and the center of the air inlet pipe (1) are on the same straight line. Several mounting brackets (5) are slidably installed on the inner wall of the rotating disk (4). A filter frame (6) is snapped into the inner wall of the mounting bracket (5). A storage groove (7) is opened on the inner wall of the filter frame (6).

2. The multi-circulation air heating device for an integrated aluminum alloy heat treatment furnace according to claim 1, characterized in that: The surface of the rotating disk (4) is rotatably mounted to the inner wall of the air inlet pipe (1). Several mounting brackets (5) are arranged in a circular array with the center of the rotating disk (4) as the axis. Several filter holes are opened inside the filter frame (6), and the filter holes are evenly distributed inside the filter frame (6).

3. The multi-circulation air heating device for an integrated aluminum alloy heat treatment furnace according to claim 1, characterized in that: A filter screen (8) is movably installed on one side of the filter frame (6), and the dimensions of the surface of the filter screen (8) are adapted to the dimensions of one side of the filter frame (6).

4. The multi-circulation air heating device for an integrated aluminum alloy heat treatment furnace according to claim 1, characterized in that: The inner walls of the filter frame (6) and the filter screen (8) are each secured with a number of fixing bolts (10). The surface of the fixing bolts (10) is threaded with a fixing block (9). One side of the fixing block (9) is movably connected to the surface of the filter screen (8).

5. The multi-circulation air heating device for an integrated aluminum alloy heat treatment furnace according to claim 4, characterized in that: A shielding ring (11) is fixedly installed on the surface of several of the fixed blocks (9). The shielding ring (11) is a silicate board, and the surface of the shielding ring (11) is fixedly installed on the inner wall of the mounting frame (5). The size of the inner wall of the shielding ring (11) is compatible with the size of the inner wall of the air inlet pipe (1).

6. The multi-circulation air heating device for an integrated aluminum alloy heat treatment furnace according to claim 1, characterized in that: The surface of the rotating disk (4) is provided with a number of limiting slots (12). The number of limiting slots (12) are arranged in a circular array with the center of the rotating disk (4) as the axis. Two limiting frames (13) are engaged with the inner wall of the limiting slots (12). The surface of the limiting frames (13) is rotatably installed with the inner wall of the rotating disk (4).

7. The multi-circulation air heating device for an integrated aluminum alloy heat treatment furnace according to claim 6, characterized in that: A spring (14) is fixedly connected between the two limiting frames (13), and the dimensions of the surface of the limiting frame (13) are compatible with the dimensions of the inner wall of the limiting slot (12).

8. The multi-circulation air heating device for an integrated aluminum alloy heat treatment furnace according to claim 1, characterized in that: Two support wheels (16) are slidably installed at the bottom of the rotating disk (4). The two support wheels (16) are symmetrically distributed about the rotating disk (4) as an axis, and the surfaces of the two support wheels (16) are rotatably connected to a fixed frame (15).

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