A device for homogenizing hot air

Abstract

This utility model belongs to the field of homogenizing furnace technology, specifically a device for homogenizing normalizing hot air, including a container; a heating pipe is fixedly connected to the top of the container; the heating pipe is located at the center of the container; a wind box is fixedly connected to the top of the heating pipe; a pair of feed inlets are opened on the side wall of the container; a pair of first guide plates are rotatably connected to the side wall of the container; the first guide plates are located near the lower part of the heating pipe; a pair of second guide plates are rotatably connected to the side wall of the container; the second guide plates are located below the first guide plates; multiple sets of placement racks are fixedly connected to the bottom of the container; a temperature controller is fixedly connected to the side wall of the container; by rotating the first and second guide plates to adjust the tilt, the problem of local overheating or excessive temperature difference caused by direct airflow in the heating device is reduced, ensuring that all parts of the metal parts are heated evenly, and significantly improving the homogenizing normalizing effect.

Description

Technical Field

[0001] This utility model relates to the field of homogenizing furnace technology, specifically a device for homogenizing normalizing hot air. Background Technology

[0002] Homogenization is a process that uses physical or chemical means to make a non-uniform multiphase system uniform in composition, structure or properties. In the field of material heat treatment, it is a process that improves the mechanical properties of materials by heating the workpiece and using internal circulating hot air to eliminate internal component segregation and refine grains. It is often used as a pretreatment before processing metals such as aluminum alloys and steel to ensure stable quality in subsequent processing.

[0003] The homogenization normalizing hot air device is a special equipment used for homogenization normalizing heat treatment of metal materials. It mainly heats air through electric heating elements or heat sources such as gas, and the hot air flow is driven by a circulating fan to circulate in the sealed furnace body, so that the workpiece is heated evenly, eliminating the segregation of internal components of the material, refining the grains, and improving the mechanical properties.

[0004] Existing homogenizing normalizing hot air devices typically have the internal airflow flowing in a fixed direction during internal airflow heat circulation. This is inconvenient when adjusting the airflow direction for different workpieces. Therefore, a homogenizing normalizing hot air device is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The device for homogenizing normalizing hot air of this utility model includes a container; a heating pipe is fixedly connected to the top of the container; the heating pipe is located at the center of the container; a wind box is fixedly connected to the top of the heating pipe; a pair of feed ports are opened on the side wall of the container; a pair of first guide plates are rotatably connected to the side wall of the container; the first guide plates are located near the lower part of the heating pipe; a pair of second guide plates are rotatably connected to the side wall of the container; the second guide plates are located below the first guide plates; multiple sets of placement racks are fixedly connected to the bottom of the container; a temperature controller is fixedly connected to the side wall of the container; by rotating the first guide plates and the second guide plates to adjust the inclination, the airflow heated from the heating pipe can be guided to different positions of the metal part, reducing the problem of local overheating or excessive temperature difference caused by direct airflow in the heating device, ensuring that all parts of the metal part are heated evenly, significantly improving the homogenizing normalizing effect, making the airflow form a dispersed flow inside the container, prolonging the contact time between the hot airflow and the metal part, and improving the heat transfer efficiency.

[0007] Preferably, a baffle is fixed to the side wall of the container; the baffle is located in the middle of the placement rack; multiple sets of elongated holes are opened at the top of the baffle; the elongated holes are arranged in an array at the top of the baffle; a pair of air inlets are opened on the side wall of the container; a pair of air ducts are fixed to the side wall of the container; the air ducts are connected to the side wall of the heating pipe; through the connection design between the air inlets and the air ducts, the heated airflow can flow back to the heating pipe for reheating after heating the metal parts, further enabling the airflow inside the container to circulate. The baffle prevents the residue generated during the heating of the metal parts from falling into the air inlets, which can reduce the residue clogging the airflow ducts.

[0008] Preferably, the placement rack has a square hole in the middle; multiple sets of heating rods are fixed to the bottom of the square hole; the heating rods are evenly arranged at the bottom of the square hole; the heat emitted by the heating rods can directly heat the airflow at the bottom of the container, reduce the temperature loss caused by the sinking of the airflow, and ensure that the lower surface of the metal parts and the airflow exchange heat fully.

[0009] Preferably, an indicator rod is fixedly connected to the top of the first guide plate and the second guide plate; the indicator rod is set at an angle corresponding to the first guide plate; multiple sets of angle marks are opened on the side wall of the container; the angle marks are set corresponding to the first guide plate and the second guide plate; by cooperating with the indicator rod and the angle marks, the tilt angle of the first guide plate and the second guide plate is adjusted to ensure that the airflow flows along the preset path, improve the accuracy of heating uniformity control, and further make the airflow guidance path the same during the normalizing process, thereby increasing the homogenization quality of the metal parts.

[0010] Preferably, the container sidewall is provided with a heat dissipation vent; a sealing door is slidably connected to the sidewall of the heat dissipation vent; a handle is fixedly connected to the top of the sealing door; by sliding the sealing door to open the heat dissipation vent, the high-temperature airflow inside the device can be quickly discharged after the homogenization heating is completed, while the blower is used to introduce room temperature airflow to accelerate the replacement of the internal hot air, which can shorten the overall cooling time of the container.

[0011] Preferably, the container sidewall is fixed with a heat insulation layer; the heat insulation layer is correspondingly arranged with the container; the heat insulation layer wrapped around the outside of the container can block the heat exchange between the high-temperature airflow inside the container and the outside, so that the heat is concentrated and circulated inside the container.

[0012] The advantages of this utility model are:

[0013] 1. The device for homogenizing normalizing hot air described in this utility model can guide the airflow heated from the heating pipe to different positions of the metal part by rotating the first guide plate and the second guide plate to adjust the tilt. This reduces the problem of local overheating or excessive temperature difference caused by direct airflow in the heating device, ensures that all parts of the metal part are heated evenly, significantly improves the homogenizing normalizing effect, and makes the airflow form a dispersed flow inside the container, prolonging the contact time between the hot airflow and the metal part and improving the heat transfer efficiency.

[0014] 2. The device for homogenizing positive heating air described in this utility model, through the design of connecting the air inlet and the air duct, allows the heated airflow to flow back to the heating pipe for reheating after completing the heating of the metal parts, further enabling the airflow inside the container to circulate. The baffle prevents the residue generated during the heating of the metal parts from falling into the air inlet, which can reduce the residue from clogging the airflow duct. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the main body of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the indicator rod in this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the second guide plate in this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the baffle in this utility model;

[0020] Figure 5 This is a schematic diagram of the heating rod in this utility model.

[0021] In the diagram: 1. Container; 11. Heating pipe; 12. Air box; 13. Feed inlet; 14. First guide plate; 15. Second guide plate; 16. Placement rack; 17. Thermostat; 2. Baffle; 21. Elongated hole; 22. Air inlet; 23. Air duct; 3. Square hole; 31. Heating rod; 4. Indicator rod; 41. Angle indicator; 5. Heat dissipation vent; 51. Sealed door; 52. Handle; 6. Insulation layer. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0023] Specific implementation examples are given below.

[0024] like Figures 1 to 5 As shown in the embodiment of this utility model, a device for homogenizing positive heat air includes a container 1; a heating pipe 11 is fixedly connected to the top of the container 1; the heating pipe 11 is located at the center of the container 1; a blower 12 is fixedly connected to the top of the heating pipe 11; a pair of feed inlets 13 are opened on the side wall of the container 1; a pair of first guide plates 14 are rotatably connected to the side wall of the container 1; the first guide plates 14 are located near the lower part of the heating pipe 11; a pair of second guide plates 15 are rotatably connected to the side wall of the container 1; the second guide plates 15 are located below the first guide plates 14; multiple sets of placement racks 16 are fixedly connected to the bottom of the container 1; a temperature controller 17 is fixedly connected to the side wall of the container 1; during operation, a pulling force is applied to the feed inlets 13 to place metal parts on the placement racks 16. After the metal parts are placed on the placement racks 16, the blower 12 is activated to drive airflow through the middle of the heating pipe 11. The airflow is heated after passing through the middle of the heating pipe 11. The airflow flows down into the container 1 and contacts the metal part above the placement rack 16, homogenizing and heating the metal part. When the airflow flows in the middle of the heating pipe 11, a pair of first guide plates 14 can be rotated to adjust the inclination of the first guide plates 14 below the heating pipe 11. The tilted first guide plates 14 will guide the airflow to the surface of the second guide plates 15. At this time, rotating a pair of second guide plates 15 can also adjust the inclination of the second guide plates 15, further guiding the airflow to the placement rack 16, thereby controlling the flow of airflow inside the container 1. By rotating the first guide plates 14 and the second guide plates 15 to adjust the inclination, the airflow heated from the heating pipe 11 can be guided to different positions of the metal part, reducing the problem of local overheating or excessive temperature difference caused by direct airflow in the heating device, ensuring that all parts of the metal part are heated evenly, significantly improving the homogenization normalizing effect, making the airflow form a dispersed flow inside the container 1, prolonging the contact time between the hot airflow and the metal part, and improving the heat transfer efficiency.

[0025] like Figures 1 to 5As shown, a baffle 2 is fixedly connected to the side wall of the container 1; the baffle 2 is located in the middle of the placement rack 16; multiple sets of elongated holes 21 are opened at the top of the baffle 2; the elongated holes 21 are arranged in an array at the top of the baffle 2; a pair of air inlets 22 are opened on the side wall of the container 1; a pair of air ducts 23 are fixedly connected to the side wall of the container 1; the air ducts 23 are connected to the side wall of the heating pipe 11; during operation, when the airflow inside the container 1 homogenizes and heats the metal parts above the placement rack 16, the airflow can flow out from the middle of the air inlet 22 and pass through the air duct 23. Returning to the middle of the heating pipe 11, the airflow is heated again and flows back into the container 1. The baffle 2 can prevent metal residue from falling into the air inlet 22. Through the connection design between the air inlet 22 and the air duct 23, the heated airflow can return to the heating pipe 11 for reheating after heating the metal parts, further circulating the air inside the container 1. The baffle 2 prevents the residue generated during the heating of the metal parts from falling into the air inlet 22, which can reduce the residue from clogging the airflow duct 23.

[0026] like Figures 2 to 4 As shown, a square hole 3 is provided in the middle of the placement rack 16; multiple sets of heating rods 31 are fixed to the bottom of the square hole 3; the heating rods 31 are evenly arranged at the bottom of the square hole 3; during operation, when the airflow inside the container 1 flows, the heating rods 31 can be activated, and the heating rods 31 emit heat to further heat the airflow at the bottom of the container 1. The square hole 3 in the middle of the placement rack 16 allows the airflow to flow better at the bottom of the container 1; the heat emitted by the heating rods 31 can directly heat the airflow at the bottom of the container 1, reducing the temperature loss caused by the sinking of the airflow and ensuring that the lower surface of the metal parts and the airflow exchange heat fully.

[0027] like Figure 2 As shown, an indicator rod 4 is fixedly connected to the top of the first guide plate 14 and the second guide plate 15; the indicator rod 4 is set with an angle corresponding to the first guide plate 14; multiple sets of angle marks 41 are opened on the side wall of the container 1; the angle marks 41 are set with the first guide plate 14 and the second guide plate 15 respectively; during operation, when adjusting the tilt angle of the first guide plate 14 and the second guide plate 15, the tilt angle of the first guide plate 14 and the second guide plate 15 can be viewed by cooperating with the rotation angle of the indicator rod 4 and the angle mark 41; by cooperating with the indicator rod 4 and the angle mark 41 to adjust the tilt angle of the first guide plate 14 and the second guide plate 15, the airflow is ensured to flow along the preset path, the accuracy of heating uniformity control is improved, and the airflow guidance path is made the same during the normalizing process, thereby increasing the homogenization quality of the metal parts.

[0028] like Figure 2As shown, the container 1 has a heat dissipation vent 5 on its side wall; a sealing door 51 is slidably connected to the side wall of the heat dissipation vent 5; a handle 52 is fixedly connected to the top of the sealing door 51; during operation, after the homogenization of the workpiece inside the container 1 is completed, the blower 12 is started to blow air into the container 1 again. At this time, the heating pipe 11 stops heating the airflow, and the sealing door 51 is slid to open the heat dissipation vent 5, so that the airflow can flow out from the middle of the heat dissipation vent 5, thereby reducing the overall temperature inside the container 1; by sliding the sealing door 51 to open the heat dissipation vent 5, the high-temperature airflow inside the device can be quickly discharged after the homogenization heating is completed, and at the same time, the blower 12 is used to introduce room temperature airflow to accelerate the replacement of the internal hot air, which can shorten the overall cooling time of the container 1.

[0029] like Figures 1 to 5 As shown, a heat insulation layer 6 is fixed to the side wall of the container 1; the heat insulation layer 6 is correspondingly arranged with the container 1; during operation, when the metal parts inside the container 1 are heated in a homogenized manner, the heat insulation layer 6 can wrap the heat inside the container 1; through the heat insulation layer 6 wrapped around the outside of the container 1, the heat exchange between the high-temperature airflow inside the container 1 and the outside can be blocked, so that the heat is concentrated and circulated inside the container 1.

[0030] Working principle: A pulling force is applied to the feed inlet 13 to place the metal part on the placement rack 16. After the metal part is placed on the placement rack 16, the blower 12 is activated to drive the airflow through the middle of the heating pipe 11. The airflow is heated after passing through the middle of the heating pipe 11 and continues to flow down into the container 1, contacting the metal part above the placement rack 16 to homogenize and heat the metal part. When the airflow flows in the middle of the heating pipe 11, a pair of first guide plates 14 can be rotated to adjust the inclination of the first guide plates 14 below the heating pipe 11. The tilted first guide plates 14 will guide the airflow to the surface of the second guide plates 15. At this time, rotating a pair of second guide plates 15 can also adjust the inclination of the second guide plates 15, further guiding the airflow to the placement rack 16, thereby controlling the flow of airflow inside the container 1. When the airflow inside the container 1 homogenizes and heats the metal part above the placement rack 16, the airflow can flow out from the middle of the air inlet 22, pass through the air duct 23 and return to the heating pipe 11. In the middle, the heating pipe 11 heats the airflow again and returns it to the inside of the container 1. The baffle 2 can prevent metal residue from falling into the air inlet 22. When the airflow inside the container 1 flows, the heating rod 31 can be activated. The heating rod 31 emits heat to further heat the airflow at the bottom of the container 1. The square hole 3 in the middle of the placement rack 16 can allow the airflow to flow better at the bottom of the container 1. When adjusting the tilt angle of the first guide plate 14 and the second guide plate 15, the tilt angle of the first guide plate 14 and the second guide plate 15 can be checked according to the rotation angle of the indicator rod 4 and the angle mark 41. After the homogenization of the workpiece inside the container 1 is completed, the blower 12 is activated to blow air into the inside of the container 1 again. At this time, the heating pipe 11 stops heating the airflow. The sealing door 51 is slid to open the heat dissipation port 5. The airflow can flow out from the middle of the heat dissipation port 5, which reduces the overall temperature inside the container 1. When the metal parts inside the container 1 are homogenized and heated, the heat insulation layer 6 can wrap the heat inside the container 1.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A device for homogenizing positive ignition hot air, characterized in that: The container includes a container (1); a heating pipe (11) is fixedly connected to the top of the container (1); the heating pipe (11) is located at the center of the container (1); a bellows (12) is fixedly connected to the top of the heating pipe (11); a pair of feed inlets (13) are opened on the side wall of the container (1); a pair of first guide plates (14) are rotatably connected to the side wall of the container (1); the first guide plates (14) are located near the bottom of the heating pipe (11); a pair of second guide plates (15) are rotatably connected to the side wall of the container (1); the second guide plates (15) are located below the first guide plates (14); multiple sets of placement racks (16) are fixedly connected to the bottom of the container (1); a temperature controller (17) is fixedly connected to the side wall of the container (1).

2. The apparatus for homogenizing positive ignition hot air according to claim 1, characterized in that: The container (1) has a baffle (2) fixedly attached to its side wall; the baffle (2) is located in the middle of the placement rack (16); the baffle (2) has multiple sets of elongated holes (21) at its top; the elongated holes (21) are arranged in an array at the top of the baffle (2); the container (1) has a pair of air inlets (22) on its side wall; the container (1) has a pair of air ducts (23) fixedly attached to its side wall; the air ducts (23) are connected to the side wall of the heating pipe (11).

3. The apparatus for homogenizing positive ignition hot air according to claim 2, characterized in that: The placement rack (16) has a square hole (3) in the middle; multiple sets of heating rods (31) are fixed to the bottom of the square hole (3); the heating rods (31) are evenly arranged at the bottom of the square hole (3).

4. The apparatus for homogenizing positive ignition hot air according to claim 3, characterized in that: An indicator rod (4) is fixedly connected to the top of the first guide plate (14) and the second guide plate (15); the indicator rod (4) is set with an angle corresponding to the first guide plate (14); multiple sets of angle marks (41) are opened on the side wall of the container (1); the angle marks (41) are set with the first guide plate (14) and the second guide plate (15).

5. The apparatus for homogenizing positive ignition hot air according to claim 4, characterized in that: The container (1) has a heat dissipation vent (5) on its side wall; a sealing door (51) is slidably connected to the side wall of the heat dissipation vent (5); and a handle (52) is fixedly connected to the top of the sealing door (51).

6. The apparatus for homogenizing and normalizing hot air according to claim 5, characterized in that: The container (1) has a heat insulation layer (6) fixed to its side wall; the heat insulation layer (6) is provided correspondingly to the container (1).

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