A high-speed steel wire drying device

Abstract

The application discloses a high-speed steel wire blowing dry device, which comprises a shell, a blowing dry plate is arranged in the shell, a row of wire passing holes are arranged on the blowing dry plate along the wire conveying direction, the blowing dry plate divides the inner cavity of the shell into an upper positive pressure cavity and a lower negative pressure cavity, the upper positive pressure cavity is connected with a positive pressure air source, the lower negative pressure cavity is connected with a negative pressure air source, each wire passing hole of the blowing dry plate is circumferentially provided with a first air channel communicated with the upper positive pressure cavity and a second air channel communicated with the lower negative pressure cavity, and the air volume of the negative pressure air source is greater than that of the positive pressure air. The application can effectively blow dry residual liquid on the surface of the steel wire, effectively reduce gas leakage at the same time of blowing dry, and further reduce pollution to the operating environment, so as to guarantee the safety of the staff work.

Description

Technical Field

[0001] This invention relates to the field of steel wire production technology, and specifically to a high-speed steel wire drying device. Background Technology

[0002] Electroplating and chemical plating lines often use various acid and alkali solutions to achieve their processing goals. However, with technological advancements and faster production line speeds, more stringent technical requirements have emerged. When steel wire passes through acid and alkali treatment baths at high speeds during continuous production, residual liquid inevitably forms on the surface. This has a dual negative impact: firstly, it causes excessive consumption of the bath solution, directly increasing production costs; secondly, the residual liquid contaminates the environment of subsequent processes. More seriously, cross-contamination between bath solutions in different processes can disrupt the predetermined concentration ratios. This not only causes the solution to lose its intended treatment efficiency but may also trigger a chain reaction of production anomalies, ultimately resulting in unpredictable additional costs.

[0003] Therefore, it is essential to install effective surface residual liquid removal devices at process transition points to ensure that the steel wire meets surface cleanliness standards before entering the next process. While the high-pressure gas purging technology commonly used in the industry can effectively remove surface liquids, the purging device requires a wire passage hole for continuous steel wire passage. High-speed airflow can leak out through this hole. This structure performs well in ordinary tanks, but when used in tanks containing corrosive solutions, the large amount of gas leakage can deteriorate the operating environment and endanger the safety of workers. Summary of the Invention

[0004] The purpose of this invention is to provide a high-speed steel wire drying device that can effectively dry the residual liquid on the surface of the steel wire, and at the same time effectively reduce gas leakage, thereby reducing pollution to the operating environment and ensuring the safety of employees.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a high-speed steel wire drying device, comprising a housing, wherein a drying plate is provided inside the housing, and a row of wire-passing holes are provided through the drying plate along the steel wire conveying direction. The drying plate divides the inner cavity of the housing into an upper positive pressure chamber and a lower negative pressure chamber. The upper positive pressure chamber is connected to a positive pressure air source, and the lower negative pressure chamber is connected to a negative pressure air source. Each wire-passing hole of the drying plate is circumferentially provided with a first air passage communicating with the upper positive pressure chamber and a second air passage communicating with the lower negative pressure chamber. The air volume of the negative pressure air source is greater than the air volume of the positive pressure air source.

[0006] A further improvement of the present invention is that the axial projections of the first airway and the second airway form an intersecting airflow path, and the flow cross-sectional area of ​​the second airway is larger than that of the first airway.

[0007] A further improvement of the present invention is that each wire passage hole of the drying plate is provided with two first air passages circumferentially communicating with the upper positive pressure chamber, and the two first air passages are spaced apart along the length direction of the wire passage hole and are inclined towards each other.

[0008] A further improvement of the present invention is that two third air passages are respectively provided on the side of the two second air passages that are far apart from each other on the drying plate. One end of the third air passage is connected to the wire passage hole, and the other end is connected to the lower negative pressure chamber.

[0009] A further improvement of the present invention is that the suction air volume of the negative pressure air source is more than 1.2 times the input air volume of the positive pressure air source.

[0010] A further improvement of the present invention is that the absolute value of the negative pressure of the negative pressure source is more than twice the positive pressure supplied by the positive pressure source.

[0011] A further improvement of the present invention is that an exhaust fan is provided on one side of the housing, the exhaust port of the exhaust fan is connected to the lower negative pressure chamber through a negative pressure pipe as a negative pressure air source, and the exhaust port of the exhaust fan is provided with a main diversion pipe and a secondary diversion pipe that divide the exhaust airflow into two paths, the secondary diversion pipe being connected to the upper positive pressure chamber as a positive pressure air source.

[0012] A further improvement of the present invention is that the negative pressure pipeline is provided with a branch pipe connection port, which is connected to the branch pipe of the acid washing tower suction pipe through a one-way check valve.

[0013] The beneficial effects of this invention are as follows: This invention, by setting up a drying plate, utilizes the upper positive pressure chamber and the lower negative pressure chamber on its upper part to effectively dry the residual liquid on the surface of the steel wire. At the same time, the negative pressure absorbs the airflow, effectively reducing gas leakage, thereby reducing pollution to the operating environment and ensuring the safety of employees.

[0014] This invention, by setting a third airway as an auxiliary recovery channel, can absorb airflow that may still escape after passing through the first and second channels, further reducing the possibility of overflow.

[0015] This invention achieves waste gas recirculation through a main and auxiliary flow design of the exhaust fan, and uses the treated airflow discharged under negative pressure as a supplement to the positive pressure air source, thereby reducing the total energy consumption of the system.

[0016] The connection design with the acid washing tower in this invention introduces the corrosive media that are not completely separated into a professional treatment system, utilizing existing equipment and the original negative pressure of the process system to achieve energy-saving integration. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention.

[0018] Figure 2 This is a schematic cross-sectional view of the shell structure of the present invention.

[0019] Figure 3 This is a side cross-sectional view of the shell structure of the present invention.

[0020] Figure 4 This is a schematic diagram of the airflow direction of the present invention.

[0021] In the diagram, 1-shell, 2-drying plate, 3-thread hole, 4-upper positive pressure chamber, 5-lower negative pressure chamber, 6-first air passage, 7-second air passage, 8-third air passage, 9-exhaust fan, 10-negative pressure pipe, 11-secondary diversion pipe, 12-branch pipe connection port. Detailed Implementation

[0022] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0023] Example 1: Combination Figures 1-4 It is known that a high-speed steel wire drying device includes a housing 1, a drying plate 2 is provided inside the housing 1, a row of wire-passing holes 3 are provided through the drying plate 2 along the steel wire conveying direction, the drying plate 2 divides the inner cavity of the housing 1 into an upper positive pressure chamber 4 and a lower negative pressure chamber 5, the upper positive pressure chamber 4 is connected to a positive pressure air source, the lower negative pressure chamber 5 is connected to a negative pressure air source, each wire-passing hole 3 of the drying plate 2 is circumferentially provided with a first air passage 6 communicating with the upper positive pressure chamber 4 and a second air passage 7 communicating with the lower negative pressure chamber 5, the air volume of the negative pressure air source is greater than the air volume of the positive pressure air source.

[0024] The axial projections of the first air passage 6 and the second air passage 7 form an intersecting airflow path, and the flow cross-sectional area of ​​the second air passage 7 is larger than that of the first air passage 6. Preferably, its flow cross-sectional area is 1.5 to 2 times that of the first air passage.

[0025] Each wire passage 3 of the drying plate 2 is circumferentially provided with two first air passages 6 that communicate with the upper positive pressure chamber 4. The two first air passages 6 are spaced apart along the length of the wire passage 3 and are inclined towards each other. Preferably, the inclination angle is 15° to 45°. This concentrates the air blowing towards the center and reduces the air loss from the wire passages 3 on both sides.

[0026] On the drying plate 2, on the side where the two second air passages 7 are far apart from each other, there are two third air passages 8. One end of the third air passage 8 is connected to the wire hole 3, and the other end is connected to the lower negative pressure chamber 5, which is used to capture the airflow that escapes to the edge of the drying plate 2.

[0027] See Figure 4 Optionally, a fourth airway can be provided between the two second airways 7. One end of the fourth airway is connected to the wire hole 3, and the other end is connected to the lower negative pressure chamber 5. This further increases the negative pressure adsorption coverage area.

[0028] The suction air volume of the negative pressure air source is more than 1.2 times that of the input air volume of the positive pressure air source to prevent airflow leakage. Preferably, the suction air volume of the negative pressure air source is between 1.2 and 2.2 times that of the input air volume of the positive pressure air source.

[0029] The absolute value of the negative pressure suction from the negative pressure air source is more than twice the positive pressure supplied by the positive pressure air source, forming a directional airflow differential pressure to ensure that the purging airflow converges downwards. Preferably, the absolute value of the negative pressure suction from the negative pressure air source is between 2 and 2.8 times the positive pressure supplied by the positive pressure air source.

[0030] A blower 9 is provided on one side of the housing 1. The exhaust port of the blower 9 is connected to the lower negative pressure chamber 5 via a negative pressure pipe 10 as a negative pressure air source. The exhaust port of the blower 9 is provided with a main diversion pipe and a secondary diversion pipe 11 that divide the exhaust airflow into two paths. The secondary diversion pipe 11 is connected to the upper positive pressure chamber 4 as a positive pressure air source. Preferably, the negative pressure pipe 10 is provided with a conventional filter assembly (such as a multi-stage filter element), and the airflow enters the blower 9 after being filtered.

[0031] Optionally, the negative pressure pipeline 10 is provided with a branch pipe connection port 12, which is connected to the branch pipe of the acid washing tower suction pipe through a one-way check valve.

[0032] The working principle of the high-speed steel wire drying device provided by the invention is as follows: During operation, the exhaust fan 9 is started, and the exhaust port of the exhaust fan 9 blows out a positive pressure airflow. After entering the upper positive pressure chamber 4, the positive pressure airflow comes into contact with the steel wire in the wire passage hole 3 through the first air passage 6, drying the residual liquid on the surface of the steel wire. The lower negative pressure chamber generates suction, which draws in the drying airflow. The airflow enters the lower negative pressure chamber 5 through the second air passage 7 and the third air passage 8, and is then drawn in by the exhaust fan 9. Part of the airflow returns to the upper positive pressure chamber 4 through the secondary diversion pipe 11 for reuse.

[0033] In the description of this invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Any equivalent structural or procedural transformations made using the content of this specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this invention.

Claims

1. A high-speed steel wire drying device, comprising a housing (1), wherein a drying plate (2) is provided inside the housing (1), and a row of wire-passing holes (3) are provided through the drying plate (2) along the steel wire conveying direction, characterized in that: The drying plate (2) divides the inner cavity of the housing (1) into an upper positive pressure chamber (4) and a lower negative pressure chamber (5). The upper positive pressure chamber (4) is connected to a positive pressure air source, and the lower negative pressure chamber (5) is connected to a negative pressure air source. Each wire hole (3) of the drying plate (2) is circumferentially provided with a first air passage (6) communicating with the upper positive pressure chamber (4) and a second air passage (7) communicating with the lower negative pressure chamber (5). The air volume of the negative pressure air source is greater than that of the positive pressure air source. The axial projections of the first air passage (6) and the second air passage (7) form a cross-flow path, and the flow cross-sectional area of ​​the second air passage (7) is greater than that of the first air passage (6). Each wire hole (3) of the drying plate (2) is circumferentially provided with two first air passages communicating with the upper positive pressure chamber (4). Air passage (6), two first air passages (6) are spaced apart along the length of the wire hole (3) and are inclined towards each other. On the drying plate (2), two third air passages (8) are respectively provided on the side away from each other of the two second air passages (7). One end of the third air passage (8) is connected to the wire hole (3) and the other end is connected to the lower negative pressure chamber (5). A blower (9) is provided on one side of the housing (1). The exhaust port of the blower (9) is connected to the lower negative pressure chamber (5) through the negative pressure pipe (10) as a negative pressure air source. The exhaust port of the blower (9) is provided with a main diversion pipe and a secondary diversion pipe (11) that divides the exhaust airflow into two paths. The secondary diversion pipe (11) is connected to the upper positive pressure chamber (4) as a positive pressure air source.

2. The high-speed steel wire drying device according to claim 1, characterized in that: The suction air volume of the negative pressure air source is more than 1.2 times the input air volume of the positive pressure air source.

3. The high-speed steel wire drying device according to claim 2, characterized in that: The absolute value of the negative pressure suction of the negative pressure source is more than twice the positive pressure supplied by the positive pressure source.

4. The high-speed steel wire drying device according to claim 1, characterized in that: The negative pressure pipeline (10) is provided with a branch pipe connection port (12), which is connected to the branch pipe of the acid washing tower suction pipe through a one-way check valve.

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