Cooling air duct structure of wire oven

Abstract

The invention relates to the technical field of metallurgical engineering, and discloses a cooling air duct structure of a wire oven, comprising a support plate, the bottom of the support plate is fixedly connected with a plurality of support legs, the upper part of the support plate is provided with a rubber pad, one side of the upper part of the rubber pad is fixedly provided with an air duct I, and the other side of the upper part of the rubber pad is fixedly provided with an air duct II; one end of each first air channel is fixedly connected with one end of the corresponding second air channel, first fans are arranged on the two sides and the upper portion of one end of each air channel, the output ends of the first fans are fixedly connected with dispersion plates, a plurality of dispersion holes are formed in the dispersion plates, and waste heat recovery mechanisms are installed on the two sides of the inner walls of the two air channels. Waste heat in cooling air can be fully absorbed through the fins installed on the two sides of the inner wall of the air channel, external air is sucked into the heat exchange barrel through the second draught fan, meanwhile, the heat exchange barrel is tightly attached to the fins, the heat exchange efficiency is improved, the recycled waste heat can be used for preheating equipment or space, and heat waste is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of metallurgical engineering, and specifically to a cooling air duct structure for a wire drying furnace. Background Art

[0002] In the technical field of metallurgical engineering, the cooling link of a wire drying furnace plays a crucial role in the quality and performance of the wire. In the prior art, there are many drawbacks in the traditional cooling air duct structure of the wire drying furnace.

[0003] On the one hand, the cooling wind speed of the traditional cooling air duct is low and the air volume is insufficient, and it is difficult to cool the wire to a suitable temperature within a certain distance. Taking the production of enameled wire as an example, the wire temperature at the outlet of the drying furnace is about 380 °C. Although there is a cooling air box between the outlet of the drying furnace and the upper guide wheel, when producing large-sized wires (such as 4.00×20.00), the surface temperature of the wire is still about 120 °C when it contacts the upper guide wheel. This causes the enamel film of the enameled wire to contact the upper guide wheel before it is completely hardened, which is extremely likely to cause damage to the enamel film and seriously affect the product quality. To ensure the product quality, the enterprise can only reduce the wire speed (about 30%), but this leads to a significant decrease in production efficiency and an increase in production costs. On the other hand, the traditional cooling air duct structure often lacks an effective waste heat recovery mechanism, and a large amount of waste heat generated during the cooling process is directly discharged into the environment without being fully utilized, which not only causes a great waste of energy but also increases the enterprise's energy consumption cost, and does not conform to the current environmental protection concept and development trend of energy conservation and emission reduction. In addition, the traditional air duct may have design defects, resulting in an unreasonable flow path of the cooling air in the air duct, prone to situations such as air flow concentration or air flow dead zones, making the cooling of each part of the wire uneven, further affecting the quality stability of the wire and increasing the defective rate of the product.

[0004] In view of this, the purpose of the present invention is to provide a cooling air duct structure for a wire drying furnace to solve the deficiencies in the prior art. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a cooling air duct structure for a wire drying furnace, which solves the problem of low cooling wind speed and insufficient air volume of the traditional cooling air duct.

[0006] To achieve the above object, the present invention is realized by the following technical solutions: A cooling air duct structure of a wire drying furnace, including a support plate, a plurality of support legs are fixedly connected to the bottom of the support plate, a rubber pad is arranged on the upper part of the support plate, a first air duct is fixedly installed on one side of the upper part of the rubber pad, a second air duct is fixedly installed on the other side of the upper part of the rubber pad, one end of the first air duct is fixedly connected to one end of the second air duct, a plurality of first fans are arranged on both sides and the upper part of one end of the two air ducts, the output ends of the plurality of first fans are fixedly connected with dispersion plates, a plurality of dispersion holes are opened in each of the plurality of dispersion plates, and waste heat recovery mechanisms are installed on both sides of the inner walls of the two air ducts, which are used for recovering and processing the collected waste heat;

[0007] The waste heat recovery mechanism includes a plurality of fins fixedly installed on both sides of the inner wall of the rubber pad, the bottom of both sides of the outer wall of the first air duct is fixedly connected with a chassis, a second fan is arranged on the upper part of each of the two chassis, the output ends of the two second fans are fixedly connected with heat exchange cylinders, the upper parts of the two heat exchange cylinders are fixedly connected with air outlet pipes, and valves are arranged on the outer walls of the two air outlet pipes.

[0008] Preferably, the inner diameter of the first air duct is larger than the outer diameter of the second air duct.

[0009] Preferably, the two heat exchange cylinders are respectively attached to one side of the two fins.

[0010] Preferably, the two heat exchange cylinders are respectively fixedly connected to both sides of the outer wall of the first air duct.

[0011] Preferably, a plurality of inclined guide plates are arranged on the upper parts of the inner walls of the two air ducts.

[0012] Preferably, a temperature sensor is arranged on the upper part of the outer wall of the first air duct.

[0013] Preferably, a control panel is arranged on one side of the outer wall of the second air duct.

[0014] Preferably, the temperature sensor is electrically connected to the control panel.

[0015] The present invention provides a cooling air duct structure of a wire drying furnace. It has the following beneficial effects:

[0016] 1. In the present invention, fins in the waste heat recovery mechanism are installed on both sides of the inner wall of the air duct, which can fully absorb the waste heat in the cooling air. At the same time, the second fan sucks external air into the heat exchange cylinder, and the heat exchange cylinder is closely attached to the fins, improving the heat exchange efficiency. The air after absorbing the waste heat is discharged through the air outlet pipe, and the valve on the air outlet pipe can adjust the flow rate and temperature of the discharged air. In winter or other production processes with heat requirements, the valve is opened, and the recovered waste heat can be used to preheat equipment or space, avoiding heat waste, reducing the enterprise's energy consumption cost, achieving energy conservation and emission reduction, and making the entire production process more environmentally friendly.

[0017] 2. In the present invention, by adopting two-stage cooling air ducts, each cooling air duct is equipped with multiple high-speed fans. Compared with the traditional cooling air duct, the wind speed is increased and the air volume is greatly increased. For example, in the enameled wire production scenario, originally the wire speed had to be reduced due to unqualified wire cooling, but now the wire speed can be increased from 2.5 m / min to 3.3 m / min, an increase of about 30%. More products can be produced per unit time, the production cycle is reduced, and higher economic benefits are brought to the enterprise.

[0018] 3. In the present invention, the cooling section adopts two-stage cooling air ducts, and each cooling air duct uses three high-speed fans. Also, the inner diameter of the first air duct is larger than the outer diameter of the second air duct, thereby optimizing the air flow characteristics. At the same time, multiple first fans cooperate with the dispersion plate and dispersion holes to make the cooling air evenly enter the air duct, avoiding uneven cooling. In the enameled wire production, by rapidly reducing the wire temperature from a relatively high temperature, it is ensured that the paint film is not damaged when passing through the upper guide wheel, improving the product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a right-side schematic diagram of the present invention;

[0020] Figure 2 is a left-side schematic diagram of the present invention;

[0021] Figure 3 is an internal structure schematic diagram of the present invention;

[0022] Figure 4 is a dispersion structure schematic diagram of the present invention;

[0023] Figure 5 is a schematic diagram of the waste heat recovery mechanism of the present invention.

[0024] Wherein, 1. Support plate; 2. Support leg; 3. Rubber pad; 4. First air duct; 5. Second air duct; 6. First fan; 7. Dispersion plate; 8. Dispersion hole; 9. Waste heat recovery mechanism; 901. Fin; 902. Chassis; 903. Second fan; 904. Heat exchange cylinder; 905. Air outlet pipe; 906. Valve; 10. Deflector; 11. Temperature sensor; 12. Control panel. DETAILED DESCRIPTION OF THE INVENTION

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] Please refer to the attached Figure 1 - attached Figure 5 , the embodiment of the present invention provides a cooling air duct structure for a wire rod baking furnace, which includes a support plate 1. A plurality of support legs 2 are fixedly connected to the bottom of the support plate 1. A rubber pad 3 is arranged on the upper part of the support plate 1. An air duct 4 is fixedly installed on one side of the upper part of the rubber pad 3. An air duct 5 is fixedly installed on the other side of the upper part of the rubber pad 3. One end of the air duct 4 is fixedly connected to one end of the air duct 5. A plurality of fans 6 are arranged on both sides and the upper part of both ends of the two air ducts. The output ends of the plurality of fans 6 are fixedly connected to a dispersion plate 7. A plurality of dispersion holes 8 are opened inside the plurality of dispersion plates 7. Waste heat recovery mechanisms 9 are installed on both sides of the inner walls of the two air ducts, which are used for recovering and processing the collected waste heat; the waste heat recovery mechanism 9 includes a plurality of fins 901 fixedly installed on both sides of the inner wall of the rubber pad 3. The bottom of both sides of the outer wall of the air duct 4 is fixedly connected to a chassis 902. A fan 903 is arranged on the upper part of the two chassis 902. The output ends of the two fans 903 are fixedly connected to a heat exchange cylinder 904. An air outlet pipe 905 is fixedly connected to the upper part of the two heat exchange cylinders 904. Valves 906 are arranged on the outer walls of the two air outlet pipes 905; the inner diameter of the air duct 4 is larger than the outer diameter of the air duct 5; the two heat exchange cylinders 904 are respectively attached to one side of the two fins 901; the two heat exchange cylinders 904 are respectively fixedly connected to both sides of the outer wall of the air duct 4; a plurality of inclined guide plates 10 are arranged on the upper parts of the inner walls of the two air ducts; a temperature sensor 11 is arranged on the upper part of the outer wall of the air duct 4; a control panel 12 is arranged on one side of the outer wall of the air duct 5; the temperature sensor 11 is electrically connected to the control panel 12;

[0027] Specifically, the multiple support legs 2 connected to the bottom of the support plate 1 provide stable support for the whole, ensuring the stability of the structure during operation; the rubber pads 3 on the upper part of the support plate 1 can not only effectively buffer the vibration generated during equipment operation, reduce the impact of vibration on the air duct and other components, but also facilitate the installation of the air duct one 4 and the air duct two 5, enhancing the firmness of the installation. The air duct one 4 and the air duct two 5 cooperate with each other, and one end is fixedly connected to form a circulation channel for cooling air. Moreover, the inner diameter of the air duct one 4 is larger than the outer diameter of the air duct two 5. This design optimizes the flow velocity and pressure distribution of air in the air duct, enabling the cooling air to cool the wire more efficiently. Multiple fans one 6 are respectively distributed on both sides and the upper part at one end of the air duct. When the fans one 6 are started and high-speed airflows are blown out, after passing through the dispersion plate 7, the dispersion holes 8 will evenly disperse the concentrated airflows, allowing the cooling air to enter the interior of the air duct evenly, effectively avoiding the problem of uneven cooling caused by concentrated airflows, and ensuring that all parts of the wire can be fully cooled.

[0028] Furthermore, the fins 901 in the waste heat recovery mechanism 9 are fixedly installed on both sides of the inner wall of the rubber pad 3 and have a large surface area, which can fully absorb the waste heat in the cooling air in the air duct. The chassis 902 are respectively fixed at the bottom on both sides of the outer wall of the air duct one 4. The fans two 903 on its upper part are responsible for sucking in external air. The heat exchange cylinder 904 connected to the output end of the fans two 903 is closely attached to the fins 901, greatly improving the heat exchange efficiency. The waste heat in the cooling air is transferred to the heat exchange cylinder 904 through the fins 901. The cold air sucked into the heat exchange cylinder 904 absorbs heat during the heat exchange process and its temperature rises. Then, the air after heat exchange is discharged through the air outlet pipe 905. The valve 906 provided on the outer wall of the air outlet pipe 905 can flexibly control the flow rate and temperature of the discharged air. In winter or other production links with heat demand, by opening the valve 906, the recovered waste heat can be used to preheat the equipment or space, achieving efficient utilization of energy, avoiding waste of heat, reducing the energy consumption cost of the enterprise, and making the whole production process more environmentally friendly.

[0029] Furthermore, the flow guide plate 10 can change the air flow direction, enabling the air to form a more reasonable flow path, further enhancing the uniformity of the cooling effect, effectively guiding the air flow to flow around the wire, avoiding the occurrence of air flow dead zones, allowing the wire to come into contact with the cooling air more fully, and accelerating the heat exchange speed.

[0030] Furthermore, the temperature sensor 11 installed on the upper part of the outer wall of the first air duct 4 is electrically connected to the control panel 12 on one side of the outer wall of the second air duct 5, achieving intelligent regulation of the temperature inside the air duct. The temperature sensor 11 monitors the temperature changes inside the air duct in real time and transmits the collected data to the control panel 12. The control panel 12 analyzes and processes the received temperature data. When the temperature sensor 11 detects that the temperature inside the air duct is too high or too low, the control panel 12 issues instructions to adjust the rotation speeds of the first fan 6 and the second fan 903 and the opening degree of the valve 906. When the temperature is too high, the control panel 12 increases the rotation speed of the first fan 6 to increase the flow rate of the cooling air, and at the same time increases the rotation speed of the second fan 903 to improve the waste heat recovery efficiency, ensuring that the temperature inside the air duct always remains within a suitable range to meet the process requirements of wire cooling.

[0031] Furthermore, traditional cooling air ducts have problems such as low cooling air speed and insufficient air volume, and it is difficult to cool the wire to a suitable temperature within a certain distance. Taking the production of enameled wire as an example, in the traditional cooling method, the wire temperature is as high as about 380 °C when the enameled wire exits the furnace mouth of the baking furnace. Even after being cooled by the cooling air box, when producing large-sized wires such as 4.00×20.00, the surface temperature of the wire is still about 120 °C when it contacts the upper guide wheel. This causes damage to the enameled wire film before it is fully hardened, and the enterprise can only reduce the wire speed by about 30% to ensure product quality. However, in the present invention, by increasing the number of fans and increasing the fan rotation speed, etc., the air speed and air volume are significantly increased. In the production scenario of enameled wire, the wire speed can be increased from 2.5 m / min to 3.3 m / min, an increase of about 30%, and the air volume also increases significantly. It can quickly take away the heat on the surface of the wire, quickly cool the wire from a higher temperature to the target temperature, effectively avoiding product quality problems caused by too high wire temperature, such as film damage, etc., and at the same time improving production efficiency and bringing higher economic benefits to the enterprise.

[0032] Working principle: In this cooling air duct structure, multiple support legs 2 fixedly connected to the bottom of the support plate 1 ensure the stability of the entire structure. The rubber pad 3 on the upper part of the support plate 1 plays a buffering role on the one hand, reducing the vibration transmission during equipment operation, and on the other hand, it also helps with the installation and fixation of the first air duct 4 and the second air duct 5.

[0033] One end of the first air duct 4 and the second air duct 5 are fixedly connected to form a circulation channel for the cooling air. The cooling section uses two cooling air ducts, and each cooling air duct uses three high-speed fans. The inner diameter of the first air duct 4 is larger than the outer diameter of the second air duct 5, which helps to optimize the air flow speed and pressure distribution inside the air duct, enabling the cooling air to cool the wire more effectively.

[0034] The dispersion plate 7 fixedly connected to the output end of multiple first fans 6 and the multiple dispersion holes 8 formed inside it. When the first fans 6 are started, high-speed airflows are blown out from the fans, pass through the dispersion plate 7, and the dispersion holes 8 disperse the concentrated airflows, enabling the cooling air to enter the inside of the air duct evenly, avoiding the problem of uneven cooling caused by the concentration of airflows, and ensuring that all parts of the wire can be sufficiently cooled.

[0035] The fins 901 in the waste heat recovery mechanism 9 have a large surface area and can fully absorb the waste heat in the cooling air in the air duct. After the second fan 903 is started, external air is inhaled, passes through the heat exchange cylinder 904, and the heat exchange cylinder 904 is attached to one side of the fins 901 and fixed on both sides of the outer wall of the first air duct 4, greatly improving the heat exchange efficiency. The waste heat in the cooling air is transferred to the heat exchange cylinder 904 through the fins 901, and the cold air inhaled into the heat exchange cylinder 904 absorbs heat during the heat exchange process and the temperature rises. The air after heat exchange is discharged through the air outlet pipe 905. The valve 906 provided on the outer wall of the air outlet pipe 905 can control the flow rate and temperature of the discharged air, so as to adjust the waste heat recovery according to actual needs. In winter or other production processes that require additional heat, the valve 906 can be appropriately opened to use the recovered waste heat to preheat other equipment or spaces, realizing the efficient utilization of energy; when waste heat is not needed, the valve 906 can be closed to avoid heat waste.

[0036] When the cooling air flows in the air duct, the guide plate 10 changes the air flow direction, making the air form a more reasonable flow path, further enhancing the uniformity of the cooling effect. The guide plate 10 can effectively guide the air flow to flow around the wire, avoiding the occurrence of air dead zones, enabling the wire to be in more sufficient contact with the cooling air, and accelerating the heat exchange speed.

[0037] The temperature sensor 11 provided on the upper part of the outer wall of the first air duct 4 monitors the temperature change in the air duct in real time. The temperature sensor 11 transmits the collected temperature data to the control panel 12 on one side of the outer wall of the second air duct 5. Since the temperature sensor 11 is electrically connected to the control panel 12, the control panel 12 can analyze and process the received temperature data. When the temperature sensor 11 detects that the temperature in the air duct is too high or too low, the control panel 12 can issue commands to adjust the rotation speeds of the first fans 6 and the second fan 903 and the opening degree of the valve 906. If the temperature is too high, the control panel 12 can increase the rotation speed of the first fans 6 to increase the flow rate of the cooling air, and at the same time increase the rotation speed of the second fan 903 to improve the waste heat recovery efficiency, ensuring that the temperature in the air duct always remains within a suitable range and meets the process requirements for wire cooling.

[0038] In a traditional cooling air duct, the cooling air speed is low and the air volume is insufficient, making it difficult to cool the wire to an appropriate temperature within a specified distance. However, with this cooling air duct structure, by increasing the number of fans, raising the fan speed, etc., the air speed and air volume have been significantly increased. Multiple fans work together, increasing the air speed by a certain proportion compared to the original. For example, in the enameled wire production scenario, the wire speed could originally be reduced due to unqualified wire cooling, but now it can be increased from 2.5 m / min to 3.3 m / min, and the air volume has also increased significantly. This efficient supply of cooling air can quickly remove the heat from the surface of the wire, rapidly cooling the wire from a relatively high temperature to the target temperature, effectively avoiding product quality problems caused by excessive wire temperature, such as paint film damage, etc., and improving production efficiency at the same time.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cooling air duct structure of a wire rod oven, characterized in that, It includes a support plate (1), multiple support legs (2) are fixedly connected to the bottom of the support plate (1), a rubber pad (3) is arranged on the upper part of the support plate (1), an air duct one (4) is fixedly installed on one side of the upper part of the rubber pad (3), an air duct two (5) is fixedly installed on the other side of the upper part of the rubber pad (3), one end of the air duct one (4) is fixedly connected to one end of the air duct two (5), a blower one (6) is arranged on both sides and the upper part of both ends of the two air ducts, a dispersion plate (7) is fixedly connected to the output end of each of the multiple blowers one (6), multiple dispersion holes (8) are formed inside each of the multiple dispersion plates (7), a waste heat recovery mechanism (9) is installed on both sides of the inner wall of the two air ducts, and it is used for recovering and processing the collected waste heat; The waste heat recovery mechanism (9) includes multiple fins (901) fixedly installed on both sides of the inner wall of the rubber pad (3), a chassis (902) is fixedly connected to both sides of the bottom of the outer wall of the air duct one (4), a blower two (903) is arranged on the upper part of each of the two chassis (902), a heat exchange cylinder (904) is fixedly connected to the output end of each of the two blowers two (903), an air outlet pipe (905) is fixedly connected to the upper part of each of the two heat exchange cylinders (904), and a valve (906) is arranged on the outer wall of each of the two air outlet pipes (905).

2. The cooling air duct structure of a wire rod oven according to claim 1, characterized in that, The inner diameter of the air duct one (4) is larger than the outer diameter of the air duct two (5).

3. The cooling air duct structure of a wire rod oven according to claim 1, characterized in that, The two heat exchange cylinders (904) are respectively attached to one side of the two fins (901).

4. The cooling air duct structure of a wire rod oven according to claim 1, characterized in that, The two heat exchange cylinders (904) are respectively fixedly connected to both sides of the outer wall of the air duct one (4).

5. The cooling air duct structure of a wire rod oven according to claim 1, characterized in that, Multiple inclined guide plates (10) are arranged on the upper part of the inner walls of the two air ducts.

6. The cooling air duct structure of a wire rod baking furnace according to claim 1, characterized in that, A temperature sensor (11) is arranged on the upper part of the outer wall of the air duct one (4).

7. The cooling air duct structure of a wire drying furnace according to claim 1, characterized in that, A control panel (12) is arranged on one side of the outer wall of the air duct two (5).

8. The cooling air duct structure of a wire rod oven according to claim 6, characterized in that, The temperature sensor (11) is electrically connected to the control panel (12).

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