High-speed steel wire blow-drying device

Abstract

The high-speed steel wire blow-drying device comprises a shell, a blow-drying plate is arranged in the shell, a row of wire passing holes are formed in the blow-drying plate in the steel wire conveying direction in a penetrating mode, the blow-drying plate divides an 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, and the lower negative pressure cavity is connected with a negative pressure air source. The lower negative pressure cavity is connected with a negative pressure air source, a first air channel communicated with the upper positive pressure cavity and a second air channel communicated with the lower negative pressure cavity are arranged in the circumferential direction of each silk passing hole of the blow-drying plate, and the air volume of the negative pressure air source is larger than that of the positive pressure air. Residual liquid on the surface of the steel wire can be effectively blow-dried, gas leakage is effectively reduced while blow-drying is conducted, then pollution to the operation environment is reduced, and the working safety of workers is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of steel wire production, and in particular to a high-speed steel wire drying device. Background Art

[0002] Electroplating lines and chemical plating lines often use various acid-base solutions to achieve process goals during production. However, with the upgrading of technology, faster production line speeds have also brought more stringent technical requirements. When the steel wire passes through the acid-base treatment tank at high speed during continuous production, residual liquid on the surface will inevitably appear. This will cause a double negative impact: on the one hand, excessive consumption of the tank will directly increase production costs, and on the other hand, residual liquid will pollute the environment of subsequent processes. What's more serious is that cross-contamination between tanks in different processes will destroy the established concentration ratio, which will not only cause the solution to lose its due treatment efficiency, but may also cause chain reaction-type production abnormalities, ultimately resulting in unpredictable additional cost expenditures.

[0003] Therefore, an effective surface residual liquid removal device must be set up in the process conversion link to ensure that the surface cleanliness standard is met before the steel wire enters the next process. The high-pressure gas purging technology currently used in the industry can effectively remove surface liquid, but because the purging device needs to be equipped with wire holes to match the continuous passage of the steel wire, the high-speed airflow will leak out through the wire holes. This structure performs well on ordinary tanks, but when used on tanks with corrosive solutions, a large amount of gas leakage will deteriorate the operating environment and affect the life safety of the staff. Summary of the invention

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

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a high-speed steel wire blowing device, comprising a shell, a blowing plate is arranged in the shell, a row of wire passing holes is penetrated on the blowing plate along the steel wire conveying direction, the blowing plate divides the inner cavity of the shell 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, the lower negative pressure chamber is connected to a negative pressure air source, each wire passing hole of the blowing plate is circumferentially arranged with a first air channel connected to the upper positive pressure chamber and a second air channel connected to 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.

[0006] A further improvement of the present invention is that the axial projections of the first air channel and the second air channel form a cross-type airflow path, and the flow cross-sectional area of the second air channel is larger than that of the first air channel.

[0007] A further improved solution of the present invention is that two first air channels communicating with the upper positive pressure chamber are circumferentially arranged around each wire passing hole of the drying plate, and the two first air channels are arranged at intervals along the length direction of the wire passing hole and are inclined towards each other.

[0008] A further improved solution of the present invention is that two third air channels are respectively arranged on one side of the drying plate where the two second air channels are far away from each other. One end of the third air channel communicates with the wire passing hole, and the other end communicates with the lower negative pressure chamber.

[0009] A further improved solution 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 improved solution of the present invention is that the absolute value of the suction negative pressure of the negative pressure air source is more than 2 times the positive pressure supplied by the positive pressure air source.

[0011] A further improved solution of the present invention is that an exhaust fan is arranged on one side of the housing. The suction port of the exhaust fan is connected to the lower negative pressure chamber through a negative pressure pipeline as the negative pressure air source. The exhaust port of the exhaust fan is provided with a main shunt pipe and a secondary shunt pipe for dividing the discharged air flow into two paths. The secondary shunt pipe is connected to the upper positive pressure chamber as the positive pressure air source.

[0012] A further improved solution of the present invention is that a branch connection port is arranged on the negative pressure pipeline and is communicated with a branch pipe of the acid washing tower suction pipe through a one-way check valve.

[0013] The beneficial effects of the present invention are as follows: By arranging the drying plate and cooperating with the upper positive pressure chamber and the lower negative pressure chamber above and below it, the present invention can effectively dry the residual liquid on the surface of the steel wire, and at the same time absorb the air flow through negative pressure during drying, effectively reducing gas leakage, thereby reducing the pollution of the operating environment and ensuring the safety of employees' work.

[0014] By arranging the third air channel as an auxiliary recovery channel, the present invention can absorb the air flow that may still escape after the action of the first channel and the second channel, further reducing the possibility of overflow.

[0015] By realizing waste gas recirculation through the main and secondary shunt design of the exhaust fan and using the treated air flow discharged by negative pressure as the supplement of the positive pressure air source, the present invention reduces the total energy consumption of the system.

[0016] In the present invention, the connection design with the acid washing tower introduces the corrosive medium that has not been completely separated into the professional treatment system, utilizes the existing equipment, and realizes energy-saving integration by using the original negative pressure of the process system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the present invention.

[0018] Figure 2 Schematic cross-sectional view of the housing structure of the present invention.

[0019] Figure 3 Schematic side cross-sectional view of the housing structure of the present invention.

[0020] Figure 4 Schematic diagram of the air flow direction of the present invention.

[0021] In the figure, 1 - housing, 2 - drying plate, 3 - wire passing hole, 4 - upper positive pressure chamber, 5 - lower negative pressure chamber, 6 - first air duct, 7 - second air duct, 8 - third air duct, 9 - exhaust fan, 10 - negative pressure pipeline, 11 - auxiliary shunt pipe, 12 - branch connection port. Detailed implementation manners

[0022] The present invention will be further illustrated below in conjunction with the accompanying drawings and specific embodiments.

[0023] Embodiment 1: As can be seen from Figures 1 - 4 , a high-speed steel wire drying device includes a housing 1. Inside the housing 1, there is a drying plate 2. Along the wire conveying direction on the drying plate 2, a row of wire passing holes 3 are penetrated. 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. Around each wire passing hole 3 of the drying plate 2, there are a first air duct 6 communicating with the upper positive pressure chamber 4 and a second air duct 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.

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

[0025] Around each wire passing hole 3 of the drying plate 2, there are two first air ducts 6 communicating with the upper positive pressure chamber 4. The two first air ducts 6 are spaced along the length direction of the wire passing hole 3 and are inclined towards each other. Preferably, the inclination angle is 15° to 45°. This makes the blowing concentrated towards the middle and reduces the air volume loss from the wire passing holes 3 on both sides.

[0026] On the drying plate 2, on the sides where the two second air ducts 7 are far from each other, there are two third air ducts 8 respectively. One end of the third air duct 8 is communicated with the wire passing hole 3, and the other end is communicated with the lower negative pressure chamber 5, which is used to capture the air flow escaping to the edge of the drying plate 2.

[0027] Referring to Figure 4 , optionally, a fourth air duct can also be provided between the two second air ducts 7. One end of the fourth air duct is communicated with the wire passing hole 3, and the other end is communicated with the lower negative pressure chamber 5. This further increases the negative pressure adsorption coverage range.

[0028] 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, so as to avoid air leakage. Preferably, the suction air volume of the negative-pressure air source is between 1.2 and 2.2 times the input air volume of the positive-pressure air source.

[0029] The absolute value of the suction negative pressure of the negative-pressure air source is more than 2 times the positive pressure supplied by the positive-pressure air source, forming a directional air pressure difference to ensure that the purging air flow converges downward. Preferably, the absolute value of the suction negative pressure of the negative-pressure air source is between 2 and 2.8 times the positive pressure supplied by the positive-pressure air source.

[0030] A suction fan 9 is provided on one side of the housing 1. The suction port of the suction fan 9 is connected to the lower negative-pressure chamber 5 through a negative-pressure pipeline 10 as the negative-pressure air source. The exhaust port of the suction fan 9 is provided with a main shunt pipe and an auxiliary shunt pipe 11 for dividing the exhausted air flow into two paths. The auxiliary shunt pipe 11 is connected to the upper positive-pressure chamber 4 as the positive-pressure air source. Preferably, a conventional filtering component (such as a multi-stage filter element) is provided on the negative-pressure pipeline 10, and the air flow enters the suction fan 9 after being filtered.

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

[0032] The working principle of a high-speed steel wire drying device provided by the invention is as follows: During operation, the suction fan 9 is started, and the positive-pressure air flow is ejected from the exhaust port of the suction fan 9. The positive-pressure air flow enters the upper positive-pressure chamber 4 and then contacts the steel wire in the wire passing hole 3 through the first air passage 6 to dry the residual liquid on the surface of the steel wire. The lower negative-pressure chamber generates suction to suck the drying air flow. The air flow enters the lower negative-pressure chamber 5 through the second air passage 7 and the third air passage 8, and then is sucked by the suction fan 9. Part of the air flow returns to the upper positive-pressure chamber 4 through the auxiliary shunt pipe 11 for reuse.

[0033] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention. Any equivalent structural or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, shall be equally included in the scope of patent protection of the present invention.

Claims

1. A high-speed steel wire drying device, comprising a housing (1), a drying plate (2) is arranged inside the housing (1), and a row of wire passing holes (3) are arranged through the drying plate (2) along the wire conveying direction, and it is 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 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 that of the positive pressure air.

2. The high-speed steel wire drying device according to claim 1, characterized in that: The axial projections of the first air passage (6) and the second air passage (7) form a cross-type air flow path, and the flow cross-sectional area of the second air passage (7) is greater than that of the first air passage (6).

3. The high-speed steel wire drying device according to claim 2, characterized in that: Each wire passing hole (3) of the drying plate (2) is circumferentially provided with two first air passages (6) communicating with the upper positive pressure chamber (4). The two first air passages (6) are spaced along the length direction of the wire passing hole (3) and are inclined towards each other.

4. The high-speed steel wire drying device according to claim 3, characterized in that: On the drying plate (2), two third air passages (8) are respectively provided on the sides where the two second air passages (7) are away from each other. One end of the third air passage (8) communicates with the wire passing hole (3), and the other end communicates with the lower negative pressure chamber (5).

5. A 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.

6. The high-speed steel wire drying device according to claim 5, characterized in that: The absolute value of the suction negative pressure of the negative pressure air source is more than 2 times the positive pressure supplied by the positive pressure air source.

7. A high-speed steel wire drying device according to claim 1, characterized in that: A suction fan (9) is provided on one side of the housing (1). The suction port of the suction fan (9) is connected to the lower negative pressure chamber (5) through a negative pressure pipeline (10) as the negative pressure air source. The exhaust port of the suction fan (9) is provided with a main shunt pipe and an auxiliary shunt pipe (11) for dividing the exhausted air flow into two paths. The auxiliary shunt pipe (11) is connected to the upper positive pressure chamber (4) as the positive pressure air source.

8. A high-speed steel wire drying device according to claim 7, characterized in that: A branch connection port (12) is provided on the negative pressure pipeline (10) and is communicated with a branch pipe of the acid washing tower suction pipe through a one-way check valve.

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