Powdered material quenching conveyor and method of making same

Abstract

The present disclosure relates to a powder material quench conveying device and a manufacturing method thereof, which is used in connection with an air conveying chute, the air conveying chute comprising a segmented chute body, the powder material quench conveying device comprising a quench chute, an air intake control structure and a cooling fan; the quench chute is made of a segmented chute body and is arranged in an inclined manner, the low end of the quench chute is sealingly connected with the material inlet end of the air conveying chute, and the high end of the quench chute is provided with a material receiving port; the air intake control structure comprises a wind distribution plate, which is arranged in the quench chute and separates the upper and lower chambers of the quench chute into a material chamber and an air chamber, a plurality of air flow channels are uniformly and spacedly arranged on the wind distribution plate, and the air flow channels are in communication with the material chamber and the air chamber; a fan interface is formed in the bottom of the quench chute, and the cooling fan is connected in communication with the fan interface through a pipeline. Through the above technical solution, the powder material quench conveying device can better adapt to the existing production line and is conducive to reducing the difficulty and cost of transformation.

Description

Technical Field

[0001] This disclosure relates to the technical field of powder material conveying equipment, specifically to a powder material rapid cooling conveying device and its manufacturing method. Background Technology

[0002] Air conveying chutes are devices that transport powdery materials based on the principle of air fluidization. They are widely used in industries such as cement, metallurgy, and chemicals, and can transport powdery materials such as carbide slag, cement raw materials, and fly ash. In actual production, it is often necessary to transport high-temperature powdery materials through air conveying chutes. After high-temperature powdery materials enter the conveying chutes and downstream systems, they will accelerate the aging and damage of the permeable layer of the conveying chutes, shorten the service life of the conveying chutes, and also cause thermal stress damage to downstream equipment, reduce the safety and stability of system operation, and even lead to production interruption.

[0003] To address the aforementioned hazards posed by high-temperature materials, related technologies employ the addition of dedicated coolers to pre-cool the materials before conveying them. However, this approach has the following drawbacks: First, dedicated coolers are expensive to purchase and require professional maintenance and repair, significantly increasing the burden on production and operation. Second, dedicated coolers are difficult to integrate flexibly into existing air conveying chute systems, making it difficult to modify existing chute systems and hindering their efficient adaptation to production needs. Summary of the Invention

[0004] The purpose of this disclosure is to provide a rapid cooling and conveying device for powdered materials, which can be better adapted to existing production lines and helps to reduce the difficulty and cost of modification.

[0005] To achieve the above objectives, this disclosure provides a rapid cooling and conveying device for powdered materials, which is connected to an air conveying chute. The air conveying chute includes a segmented trough, and the rapid cooling and conveying device includes a rapid cooling trough, an air intake control structure, and a cooling fan. The rapid cooling trough is made of the segmented trough and is arranged at an inclination. The lower end of the rapid cooling trough is sealed to the feed end of the air conveying chute, and the upper end of the rapid cooling trough is provided with a receiving port. The air intake control structure includes an air distribution plate, which is disposed inside the rapid cooling trough and divides the inner cavity of the rapid cooling trough into a material cavity and an air cavity. Multiple gas channels are evenly spaced on the air distribution plate, and the gas channels connect the material cavity and the air cavity. A fan interface is provided at the bottom of the rapid cooling trough, and the cooling fan is connected to the fan interface through a pipe to blow cooling air into the air cavity.

[0006] Optionally, the air intake control structure further includes a regulating valve, which is installed on the pipe between the cooling fan and the fan interface and is used to regulate the airflow of the cooling air.

[0007] Optionally, the air distribution plate is parallel to the quench trough, and the air distribution plate is formed by connecting multiple Z-shaped angle steels end to end along the width direction, with the gas flow channel formed between two adjacent Z-shaped angle steels.

[0008] Optionally, the beginning and end ends of two adjacent Z-shaped angle steels are arranged in parallel and spaced apart, and the beginning and end ends of two adjacent Z-shaped angle steels partially overlap in the length direction of the air distribution plate to form a Z-shaped flow channel.

[0009] Optionally, two adjacent Z-shaped angle steels are welded together at the partially overlapping position using an intermittent welding process to divide the Z-shaped flow channel into at least two gas flow channels.

[0010] Optionally, the bottom surface of the air distribution plate is provided with a plurality of reinforcing ribs spaced apart along the width direction of the air distribution plate. The reinforcing ribs extend along the length direction of the air distribution plate and are flush with both ends of the air distribution plate. The reinforcing ribs are welded to the air distribution plate.

[0011] Optionally, the powdered material rapid cooling conveying device further includes a temperature sensor, the cooling fan is a high-pressure variable frequency fan, the temperature sensor is installed at the lower end of the rapid cooling tank, and the temperature sensor is electrically connected to the cooling fan.

[0012] Optionally, the powdered material quenching and conveying device further includes a support frame, which is made of angle steel and fixed to the bottom of the quenching tank to support the quenching tank and the cooling fan.

[0013] Optionally, the inclination angle of the quenching tank is 16° to 18°.

[0014] Based on the above technical solution, this disclosure also provides a method for manufacturing a powdered material rapid cooling and conveying device, which includes the following steps:

[0015] Select at least one section of the waste segmented tank as the quench tank, open the material receiving port at one end of the quench tank, and open the fan interface at the bottom of the quench tank; Multiple Z-shaped angle steels of the same specifications are selected and connected end to end along the width direction to form the air distribution plate. The beginning and end of two adjacent Z-shaped angle steels are welded using an intermittent welding process to form the gas flow channel. Multiple reinforcing ribs are welded at intervals on the bottom surface of the air distribution plate, and then the air distribution plate is fixedly installed in the quenching tank, so that the air distribution plate divides the inner cavity of the quenching tank into the material cavity and the gas cavity. At this time, the gas flow channel connects the material cavity and the gas cavity. Install the regulating valve on the pipeline, connect one end of the pipeline to the cooling fan, and seal the other end to the fan interface; The support frame is made by welding angle steel and is welded and fixed to the bottom of the quench tank so that the quench tank is arranged at an inclination relative to the horizontal plane. The temperature sensor is installed at the lower end of the quench tank, and the temperature sensor is electrically connected to the cooling fan. The lower end of the quenching tank is sealed and connected to the feed end of the air conveying chute.

[0016] Through the above technical solution, the powdered material rapid cooling and conveying device disclosed herein includes a rapid cooling trough, an air intake control structure, and a cooling fan. Since the rapid cooling trough is made of segmented trough body of an air conveying chute, existing or scrapped segmented trough bodies can be reused, significantly reducing manufacturing costs and reducing waste of scrapped equipment. In addition, the rapid cooling trough can be directly and sealed to the feed end of the air conveying chute, with a simple structure and high integration. It does not require large-scale modification of the existing air conveying chute system, making the modification difficult, construction convenient, and adaptable to existing production lines. This disclosure sets up an air distribution plate and a cooling fan, and evenly arranges the gas flow channels of the air distribution plate so that after the cooling fan is started, cooling air is blown into the air chamber. The cooling air enters the material chamber evenly through the gas flow channels, making full contact with the high-temperature powdered material, quickly removing the heat from the material, resulting in higher rapid cooling efficiency and more uniform cooling.

[0017] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of the powdered material rapid cooling and conveying device provided in the embodiments of this disclosure; Figure 2 This is a schematic diagram of the installation of the air distribution plate and the quenching tank provided in the embodiments of this disclosure; Figure 3 yes Figure 2 A magnified view of a section at point A in the middle; Figure 4 This is a cross-sectional view of the air distribution plate provided in an embodiment of this disclosure.

[0019] Explanation of reference numerals in the attached drawings: 10, segmented tank; 101, feed end; 20, quench tank; 21, material inlet; 22, material chamber; 23, air chamber; 24, gas flow channel; 25, fan interface; 30, air intake control structure; 31, air distribution plate; 311, Z-shaped angle steel; 312, Z-shaped flow channel; 313, reinforcing rib; 314, rib plate; 32, regulating valve; 40, cooling fan; 41, pipe; 50, support frame; 60, welding point. Detailed Implementation

[0020] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0021] In this disclosure, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the relative positions of the corresponding components in the direction of gravity when they are in use, and "inner" and "outer" refer to their relative positions to the contours of the corresponding components themselves. Furthermore, in the following description, when referring to the accompanying drawings, unless otherwise explained, the same reference numerals in different drawings denote the same or similar elements. The above definitions are for explanation and illustration only and should not be construed as limiting the scope of this disclosure.

[0022] According to exemplary embodiments of this disclosure, reference is made to Figures 1 to 4 A powdered material rapid cooling and conveying device is provided for connection with an air conveying chute. The air conveying chute includes a segmented trough 10, and the powdered material rapid cooling and conveying device includes a rapid cooling trough 20, an air intake control structure 30, and a cooling fan 40. The rapid cooling trough 20 is made of the segmented trough 10 and is arranged at an inclination. The lower end of the rapid cooling trough 20 is sealed to the feed end 101 of the air conveying chute, and the upper end of the rapid cooling trough 20 is provided with a receiving port 21. The air intake control structure 30 includes an air distribution plate 31, which is disposed inside the rapid cooling trough 20 and divides the inner cavity of the rapid cooling trough 20 into a material cavity 22 and an air cavity 23. Multiple gas channels 24 are evenly spaced on the air distribution plate 31, and the gas channels 24 connect the material cavity 22 and the air cavity 23. A fan interface 25 is provided at the bottom of the rapid cooling trough 20, and the cooling fan 40 is connected to the fan interface 25 through a pipe 41 to blow cooling air into the air cavity 23.

[0023] Through the above technical solution, the powder material rapid cooling and conveying device disclosed herein includes a rapid cooling trough 20, an air intake control structure 30, and a cooling fan 40. Since the rapid cooling trough 20 is made of a segmented trough 10 of an air conveying chute, existing or scrapped segmented troughs 10 can be reused, significantly reducing manufacturing costs and reducing waste of scrapped equipment. In addition, the rapid cooling trough 20 can be directly and sealed to the feed end 101 of the air conveying chute, with a simple structure and high integration. It does not require large-scale modification of the existing air conveying chute system, making the modification difficult, construction convenient, and adaptable to existing production lines. By setting up an air distribution plate 31 and a cooling fan 40, the air flow channels 24 of the air distribution plate 31 are evenly arranged so that after the cooling fan 40 is started, cooling air is blown into the air chamber 23. The cooling air enters the material chamber 22 evenly through the gas flow channels 24, making full contact with the high-temperature powder material and quickly removing the heat from the material, resulting in higher rapid cooling efficiency and more uniform cooling.

[0024] According to an exemplary embodiment of this disclosure, the inclination angle of the quench 20 is 16° to 18°. For example, the inclination angle of the quench 20 can be set to 16°, 17° or 18°, so that the powdered material can slide down the inclined quench 20 under gravity under the action of airflow to the feed end 101 of the air conveying chute.

[0025] In this disclosure, it should be noted that, in order to better connect the powder material rapid cooling conveying device with the air conveying chute, the inclination angle of the rapid cooling chute 20 can also be made consistent with the inclination angle of the corresponding segment chute 10 of the air conveying chute.

[0026] The quench trough 20 and the feed end 101 of the air conveying chute can be connected by welding or flange. When using flange connection, a sealing gasket can be installed to ensure the sealing of the connection.

[0027] According to exemplary embodiments of this disclosure, such as Figure 1 As shown, the air intake control structure 30 may also include a regulating valve 32. The regulating valve 32 is installed on the pipe 41 between the cooling fan 40 and the fan interface 25, and is used to regulate the airflow of the cooling air. By setting the regulating valve 32, the operator can flexibly adjust the opening of the regulating valve 32 according to the temperature and flow rate of the high-temperature powdery material entering the receiving port 21, thereby controlling the amount of cooling air entering the air chamber 23 and ensuring that the high-temperature powdery material can be cooled to the preset temperature.

[0028] According to exemplary embodiments of this disclosure, such as Figures 1 to 3As shown, the air distribution plate 31 can be parallel to the quench tank 20, and the air distribution plate 31 is formed by connecting multiple Z-shaped angle steels 311 end to end along the width direction, with a gas flow channel 24 formed between two adjacent Z-shaped angle steels 311. With the above configuration, the air distribution plate 31 can be made using Z-shaped angle steels 311, or existing or scrap Z-shaped angle steels 311 can be reused to make the air distribution plate 31, which further reduces the manufacturing cost compared to purchasing a dedicated air distribution plate 31.

[0029] In this disclosure, multiple Z-shaped angle steels 311 are of the same specification and arranged uniformly, and the gas flow channels 24 between adjacent angle steels are evenly spaced, which can further improve the uniformity of cooling air distribution and ensure uniform cooling of powdered materials. According to an exemplary embodiment of this disclosure, such as... Figure 3 As shown, the beginning and end ends of two adjacent Z-shaped angle steels 311 are arranged parallel and spaced apart, and the beginning and end ends of two adjacent Z-shaped angle steels 311 partially overlap in the length direction of the air distribution plate 31 to form a Z-shaped flow channel 312. In the above technical solution, the length direction of the air distribution plate 31 is the material conveying direction. The Z-shaped flow channel 312 can extend the flow path of the cooling air and slow down the air velocity, so that the cooling air can more fully contact the powdery material in the material chamber 22 and improve the heat exchange efficiency.

[0030] According to exemplary embodiments of this disclosure, such as Figure 3 and Figure 4 As shown, adjacent Z-shaped angle steels 311 at partially overlapping locations can be connected by intermittent welding to divide the Z-shaped flow channel 312 into at least two gas flow channels 24. Intermittent welding involves welding at intervals to form multiple weld points 60 (e.g., ...). Figure 4 As shown in the figure, by setting it up in this way, the Z-shaped flow channel 312 can be divided into two, three or more gas flow channels 24, so that the air volume of each Z-shaped flow channel 312 is more uniform, and the cooling air can enter the material chamber 22 more evenly, ensuring uniform material cooling and improving the rapid cooling effect.

[0031] In addition, the use of intermittent welding can not only achieve a firm connection between adjacent Z-shaped angle steels 311 and enhance the overall strength of the air distribution plate 31, but also form multiple independent gas flow channels 24 to ensure smooth and uniform cooling air flow and guarantee rapid cooling efficiency.

[0032] According to exemplary embodiments of this disclosure, such as Figure 3As shown, multiple reinforcing ribs 313 are spaced apart on the bottom surface of the air distribution plate 31 along its width direction. The reinforcing ribs 313 extend along the length direction of the air distribution plate 31 and are flush with both ends of the air distribution plate 31. The reinforcing ribs 313 are welded to the air distribution plate 31. The addition of the reinforcing ribs 313 improves the structural strength of the air distribution plate 31, preventing bending and deformation, thereby extending the service life of the air distribution plate 31 and the overall service life of the powder material rapid cooling conveying device.

[0033] To further improve connection strength, such as Figure 3 As shown, multiple ribs 314 can be welded between the air distribution plate 31 and the reinforcing ribs 313, and the multiple ribs 314 are arranged at intervals along the length of the air distribution plate 31.

[0034] According to an exemplary embodiment of this disclosure, the powdered material rapid cooling conveying device may further include a temperature sensor (not shown in the figure), a high-pressure variable frequency fan 40, and a temperature sensor installed at the lower end of the rapid cooling trough 20, and electrically connected to the cooling fan 40. The lower end of the rapid cooling trough 20 refers to the end connected to the feed end 101 of the air conveying chute. The temperature sensor is used to detect the temperature of the powdered material after rapid cooling in real time and convert the temperature signal into an electrical signal, which is then transmitted to the cooling fan 40. When the temperature of the powdered material detected by the temperature sensor is higher than a preset value, a signal is sent to control the cooling fan 40 to increase its speed and increase the amount of cooling air to accelerate cooling. When the temperature of the powdered material detected by the temperature sensor is lower than the preset value, the cooling fan 40 is controlled to decrease its speed and reduce the amount of cooling air. This achieves closed-loop automatic speed regulation, accurately controlling the temperature of the powdered material within a preset range, avoiding incomplete or excessive cooling, further protecting the air conveying chute and downstream equipment, and improving the system's operational stability.

[0035] According to exemplary embodiments of this disclosure, such as Figure 1 As shown, the powdered material rapid cooling conveying device may also include a support frame 50, which is made of angle steel welded together. The support frame 50 is fixed to the bottom of the rapid cooling tank 20 and is used to support the rapid cooling tank 20 and the cooling fan 40. The support frame 50 is made of angle steel welded together, which is simple to manufacture, low in cost, and its height and structure can be flexibly adjusted according to the on-site installation environment to adapt to different installation scenarios.

[0036] Based on the above technical solution, this disclosure also provides a method for manufacturing a powdered material rapid cooling and conveying device, which includes the following steps: Select at least one section of the waste segmented tank 10 as the rapid cooling tank 20, open a material receiving port 21 at one end of the rapid cooling tank 20, and open a fan interface 25 at the bottom of the rapid cooling tank 20. Select multiple Z-shaped angle steels 311 of the same specification and connect them end to end along the width direction to form an air distribution plate 31. The beginning and end of two adjacent Z-shaped angle steels 311 are welded by intermittent welding to form a gas flow channel 24. Multiple reinforcing ribs 313 are welded at intervals on the bottom surface of the air distribution plate 31, and then the air distribution plate 31 is fixedly installed in the quench tank 20, so that the air distribution plate 31 divides the inner cavity of the quench tank 20 into a material cavity 22 and an air cavity 23. At this time, the gas flow channel 24 connects the material cavity 22 and the air cavity 23. Install the regulating valve 32 on the pipe 41, connect one end of the pipe 41 to the cooling fan 40, and seal the other end to the fan interface 25. A support frame 50 is made by welding angle steel and is welded and fixed to the bottom of the quench tank 20 so that the quench tank 20 is arranged at an inclination relative to the horizontal plane. Install the temperature sensor at the lower end of the quench tank 20 and electrically connect the temperature sensor to the cooling fan 40. The lower end of the quench tank 20 is sealed and connected to the feed end 101 of the air conveying chute.

[0037] In the above manufacturing method, the receiving port 21 is used to receive high-temperature powdery materials, and the fan interface 25 is used to connect the pipe 41 and the cooling fan 40. The waste segmented trough 10 is reused in the steps, and the air distribution plate 31 and support frame 50 are made of angle steel. There is no need to purchase special equipment and materials, which greatly reduces the manufacturing cost. At the same time, the above manufacturing method can be flexibly adapted to the modification of existing air conveying troughs without large-scale modification of existing air conveying troughs.

[0038] like Figures 1 to 4 As shown, when this rapid cooling and conveying device for powdery materials is in use, high-temperature powdery materials... (For example, high-temperature cement powder) enters the rapid cooling tank 20 from the receiving port 21. The cooling fan 40 is started and blows cold air into the air chamber 23. The cold air entering the air chamber 23 enters the material chamber 22 evenly through the gas flow channel 24 on the air distribution plate 31, and fully exchanges heat with the high-temperature powdery material. The temperature sensor detects the temperature of the powdery material after rapid cooling in real time and automatically adjusts the speed of the cooling fan 40.

[0039] In summary, this powder material rapid cooling conveying device has a simple structure, can reuse old equipment, has low manufacturing cost, and is easy to connect with existing air conveying chutes, making modification difficult. In addition, this powder material rapid cooling conveying device provides uniform cooling, high efficiency, and can achieve automatic temperature control to adapt to different working conditions.

[0040] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0041] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0042] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A rapid cooling and conveying device for powdered materials, used for connection with an air conveying chute, the air conveying chute comprising a segmented trough (10), characterized in that, The powdered material rapid cooling and conveying device includes a rapid cooling tank (20), an air intake control structure (30), and a cooling fan (40). The quenching tank (20) is made of the segmented tank body (10) and is arranged at an inclination. The lower end of the quenching tank (20) is sealed to the feed end (101) of the air conveying chute, and the upper end of the quenching tank (20) is provided with a receiving port (21). The air intake control structure (30) includes an air distribution plate (31), which is disposed in the quench tank (20). The air distribution plate (31) divides the inner cavity of the quench tank (20) into a material chamber (22) and an air chamber (23). Multiple gas channels (24) are evenly spaced on the air distribution plate (31), and the gas channels (24) connect the material chamber (22) and the air chamber (23). The bottom of the quench tank (20) is provided with a fan interface (25), and the cooling fan (40) is connected to the fan interface (25) through a pipe (41) to blow cooling air into the air chamber (23).

2. The rapid cooling and conveying device for powdered materials according to claim 1, characterized in that, The intake control structure (30) also includes a regulating valve (32), which is installed on the pipe (41) between the cooling fan (40) and the fan interface (25) and is used to regulate the air volume of the cooling air.

3. The rapid cooling and conveying device for powdered materials according to claim 2, characterized in that, The air distribution plate (31) is parallel to the quench trough (20), and the air distribution plate (31) is formed by connecting multiple Z-shaped angle steels (311) end to end along the width direction, and the gas flow channel (24) is formed between two adjacent Z-shaped angle steels (311).

4. The rapid cooling and conveying device for powdered materials according to claim 3, characterized in that, The first and last ends of two adjacent Z-shaped angle steels (311) are arranged in parallel and spaced apart, and the first and last ends of two adjacent Z-shaped angle steels (311) partially overlap in the length direction of the air distribution plate (31) to form a Z-shaped flow channel (312).

5. The rapid cooling and conveying device for powdered materials according to claim 4, characterized in that, The two adjacent Z-shaped angle steels (311) are welded together at the partially overlapping position using an intermittent welding process to divide the Z-shaped flow channel (312) into at least two gas flow channels (24).

6. The rapid cooling and conveying device for powdered materials according to claim 5, characterized in that, The bottom surface of the air distribution plate (31) is provided with a plurality of reinforcing ribs (313) spaced apart along the width direction of the air distribution plate (31). The reinforcing ribs (313) extend along the length direction of the air distribution plate (31) and are flush with both ends of the air distribution plate (31). The reinforcing ribs (313) are welded to the air distribution plate (31).

7. The rapid cooling and conveying device for powdered materials according to claim 6, characterized in that, The powdered material rapid cooling conveying device also includes a temperature sensor. The cooling fan (40) is a high-pressure variable frequency fan. The temperature sensor is installed at the low end of the rapid cooling tank (20) and is electrically connected to the cooling fan (40).

8. The rapid cooling and conveying device for powdered materials according to claim 7, characterized in that, The powdered material quenching and conveying device also includes a support frame (50), which is made of angle steel welded together. The support frame (50) is fixed to the bottom of the quenching tank (20) and is used to support the quenching tank (20) and the cooling fan (40).

9. The rapid cooling and conveying device for powdered materials according to claim 3, characterized in that, The inclination angle of the quench tank (20) is 16° to 18°.

10. A method for manufacturing a powdered material rapid cooling and conveying device, used to manufacture the powdered material rapid cooling and conveying device as described in claim 8, characterized in that, Includes the following steps: Select at least one section of the waste segmented tank (10) as the quench tank (20), open the receiving port (21) at one end of the quench tank (20), and open the fan interface (25) at the bottom of the quench tank (20). Select multiple Z-shaped angle steels (311) of the same specification and connect them end to end along the width direction to form the air distribution plate (31). The beginning and end of two adjacent Z-shaped angle steels (311) are welded by intermittent welding to form the gas flow channel (24). Multiple reinforcing ribs (313) are welded at intervals on the bottom surface of the air distribution plate (31), and then the air distribution plate (31) is fixedly installed in the quench tank (20), so that the air distribution plate (31) divides the inner cavity of the quench tank (20) into the material cavity (22) and the gas cavity (23). At this time, the gas flow channel (24) connects the material cavity (22) and the gas cavity (23). Install the regulating valve (32) on the pipe (41), connect one end of the pipe (41) to the cooling fan (40), and seal the other end to the fan interface (25); The support frame (50) is made by welding angle steel and is welded and fixed to the bottom of the quench tank (20) so that the quench tank (20) is arranged at an angle relative to the horizontal plane. The temperature sensor is installed at the lower end of the quench tank (20) and electrically connected to the cooling fan (40); The lower end of the quench trough (20) is sealed to the feed end (101) of the air conveying chute.

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