Device and method for efficiently and simultaneously cleaning surface of steel wire and alkaline washing tank without damage

Abstract

The invention discloses a device and method for efficiently and simultaneously cleaning the surface of a steel wire and an alkaline bath without damage, and belongs to the field of steel wire surface treatment. The alkali washing tank with the self-cleaning circulation function is designed to replace a traditional alkali washing tank with a large-pool structure to participate in the steel wire surface cleaning process, oil stains and wire drawing powder on the surface of the steel wire can be efficiently and thoroughly cleaned, and meanwhile alkali washing liquid can be subjected to self-cleaning circulation treatment; oil stains and wire drawing powder are effectively prevented from being adhered to the inner wall and the bottom of the alkaline washing tank due to the fact that the oil stains and the wire drawing powder exist in alkaline washing liquid for a long time, online, automatic, damage-free and efficient cleaning of the alkaline washing tank is achieved, strong acid and strong alkali soaking is not needed, the tank body does not need to be damaged, manual cleaning is not needed, frequent production halt is not needed, and cleaning liquid does not need to be replaced frequently. The alkaline washing liquid in the alkaline washing tank can be kept clean for a long time, continuous and stable operation of a production line is kept, equipment loss is reduced, the service life is prolonged, labor intensity is reduced, production cost is reduced, operation is convenient, and popularization is easy.

Description

Technical Field

[0001] This invention belongs to the technical field of steel wire production equipment, and more specifically relates to a device and method for efficiently and non-destructively cleaning the surface of steel wire and the alkaline washing tank simultaneously. Background Technology

[0002] During steel wire processing, to ensure the surface smoothness of the finished steel wire, the surface needs to be cleaned. This involves passing the steel wire sequentially through a cleaning tank, an alkaline washing tank, an ultrasonic descaling tank, and a neutralization rinsing tank. During this process, the steel wire surface undergoes high-pressure preliminary rinsing, high-temperature alkaline degreasing, ultrasonic descaling, and neutralization rinsing, gradually removing rolling oil and drawing powder adhering to the surface. Most of the oil and drawing powder are removed during the high-temperature alkaline degreasing process, while stubborn deposits are removed during the ultrasonic descaling process. However, over time, this process leads to the accumulation of a large amount of mixed oil and drawing powder deposits on the inner walls and bottom of the alkaline washing tank. These deposits not only contaminate the cleaning solution, significantly reducing the cleaning effect and efficiency of subsequent steel wire cleaning, but may also corrode the tank, shorten equipment lifespan, and affect the continuous and stable operation of the production line.

[0003] The currently used alkaline washing tank is simply a large pool without a sedimentation tank or self-cleaning function. Oil adhering to the steel wire surface floats to the top after high-temperature alkaline washing and degreasing, while wire-drawing powder, also degreased, becomes distributed throughout the alkaline washing solution. Over time, this powder adheres to the inner walls and bottom of the tank, necessitating frequent production shutdowns for cleaning and solution replacement. Each cleaning requires a thorough cleaning of the entire tank. The traditional method for cleaning the alkaline washing tank is to first soak it in strong alkali or acid after production stops, followed by manual cleaning. Although direct immersion in the alkaline washing tank with strong acid or alkali can remove some residues, the high concentration of acid or alkali can severely corrode the metal inner wall of the tank, posing a risk of excessive cleaning that could damage the tank due to strong chemical corrosion. This would actually accelerate equipment wear and increase production costs. Meanwhile, manual cleaning has drawbacks such as high labor intensity, low cleaning efficiency, short cleaning cycle, poor cleaning effect on stubborn deposits in dead corners of the tank, and the need for frequent changes of cleaning solution.

[0004] To address the aforementioned technical issues, there is an urgent need to improve existing alkaline washing tanks and design an alkaline washing tank with self-cleaning circulation. When this improved alkaline washing tank replaces the traditional large-pool structure for steel wire surface cleaning, it can efficiently and thoroughly clean the rolling oil and drawing powder from the steel wire surface while simultaneously performing self-cleaning circulation of the alkaline washing solution. This effectively prevents oil and drawing powder from adhering to the inner wall and bottom of the alkaline washing tank due to prolonged presence in the solution. This achieves online, automatic, non-destructive, and highly efficient cleaning of the alkaline washing tank, eliminating the need for strong acid or alkali soaking, tank damage, manual cleaning, frequent production stoppages, and frequent cleaning solution replacements. The alkaline washing solution in the tank can remain clean for extended periods, ensuring continuous and stable operation of the production line, reducing equipment wear and tear, extending service life, reducing labor intensity, and lowering production costs. Therefore, it is also easy to operate and readily applicable. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of the existing technology by providing a highly efficient and non-destructive device and method for simultaneously cleaning the surface of steel wire and the alkaline washing tank. Using this invention, the device and method can efficiently and thoroughly clean the rolling oil and drawing powder from the surface of the steel wire, while simultaneously performing self-cleaning circulation of the alkaline washing solution. This effectively prevents oil and drawing powder from adhering to the inner wall and bottom of the alkaline washing tank due to prolonged presence in the solution. Thus, the alkaline washing tank achieves online, automatic, non-destructive, and highly efficient cleaning, eliminating the need for strong acid or alkali soaking, tank damage, manual cleaning, frequent production stoppages, and frequent cleaning solution replacements. This allows the alkaline washing solution in the tank to remain clean for extended periods, ensuring continuous and stable operation of the production line, reducing equipment wear and tear, extending service life, reducing labor intensity, lowering production costs, and facilitating operation and widespread adoption.

[0006] The objective of this invention can be achieved through the following technical measures: The present invention provides a highly efficient, non-destructive, and thorough cleaning device for steel wire surfaces and alkaline washing tanks, comprising a cleaning tank arranged coaxially in sequence, an alkaline washing tank with a self-cleaning circulation function, an ultrasonic descaling tank, and a neutralization and rinsing tank; the alkaline washing tank is composed of a lower water storage tank with a sealed cavity structure and an upper composite tank with an open cavity structure; the composite tank includes an alkaline solution tank with a cuboid structure located at the center of the open cavity of the composite tank, an annular flow channel surrounding three sides of the alkaline solution tank, and a floating sedimentation tank area located outside the fourth side; the floating sedimentation tank area is... The system consists of a first floating pool, a first sedimentation pool, a second floating pool, a second sedimentation pool, and a transfer pool, which are connected sequentially by alternating high and low partitions. The inlet of the first floating pool is connected to the outlet of the annular flow channel. The bottom of the transfer pool has an inlet that connects to a water storage tank. The side wall of the water storage tank has an outlet that connects to a pumping system. Oil discharge ports are provided on the upper part of the outer walls of the first and second floating pools. Slag discharge ports are provided on the lower part of the outer walls of the first and second sedimentation pools.

[0007] In this invention, the left and right sides of the high partition and the low partition are welded and fixed to the inner cavity wall of the floating sedimentation tank area, the bottom surface of the low partition is welded and fixed to the cavity bottom surface of the floating sedimentation tank area, and a fluid channel for adjacent tanks is left between the bottom surface of the high partition and the cavity bottom surface of the floating sedimentation tank area.

[0008] The alkali tank described in this invention is a rectangular cavity with an open top, formed by an inlet U-shaped trough plate and an outlet U-shaped trough plate of the same shape and facing each other, together with two side plates and a bottom plate.

[0009] The ultrasonic descaling tank described in this invention has an ultrasonic generator built in.

[0010] The steps of the method for efficiently and non-destructively cleaning the surface of steel wire and the alkaline washing tank according to the present invention are as follows: A. Pre-drainage treatment: Close the inlet and outlet of the cleaning tank, open the drain valve at the bottom of the tank, and completely drain the residual cleaning liquid in the tank to create a clean working environment for subsequent cleaning steps and avoid diluting the chemical agents with residual liquid; B. High-pressure segmented circulating flushing: After the steel wire enters the inner cavity of the cleaning tank, it is divided into several cleaning sections with a length of 1.5 to 3.0 meters along the length of the cleaning tank. High-pressure fan-shaped water flow with a water pressure of 0.8 to 1.5 MPa and an angle of 30° to 60° between the nozzle and the tank wall is used to circulate and flush the steel wire in each cleaning section. The high-pressure fan-shaped water flow effectively impacts and breaks up the clumps of sediment on the surface of the steel wire, and the segmentation ensures that there are no blind spots in the flushing. At the same time, while flushing the steel wire, the bottom of the tank is agitated, so that the broken sediment is collected in the collection area and then discharged. C. High-Temperature Alkaline Washing and Degreasing of Steel Wire with Self-Cleaning of the Tank: After high-pressure segmented circulating rinsing, the steel wire continues forward, entering an alkaline tank containing an alkaline cleaning solution at 60-80°C, composed of 5%-10% sodium hydroxide, 2%-5% sodium carbonate, and the remainder deionized water. The wire is immersed in the alkaline cleaning solution for 5-10 minutes. During immersion, the self-cleaning circulation of the alkaline cleaning solution mixes and stirs the solution, saponifying and decomposing the oil and drawing powder on the steel wire surface. After thorough degreasing and degrinding through high-temperature alkaline washing, the steel wire exits the alkaline tank through the outlet U-shaped trough. Simultaneously, the alkaline cleaning solution containing floating oil and drawing powder flows out from the outlet U-shaped trough and enters the alkaline solution surrounding the steel wire. The annular flow channel on the three sides of the pool flows to the floating sedimentation tank area on the fourth side. The floating sedimentation tank area is successively set up with a first floating pool, a first sedimentation tank, a second floating pool, and a second sedimentation tank for two floating purifications and two sediment purifications. The oil sludge separated by floating purification is discharged in time through the oil outlet on the upper side of the outer wall of the floating pool. The filamentous powder sludge separated by sedimentation purification is sucked out by negative pressure through the slag outlet on the lower side of the outer wall of the sedimentation tank. The alkaline cleaning solution, which maintains a certain cleanliness after two floating purifications and two sediment purifications, flows downward into the inner cavity of the water storage tank on the next layer through the water inlet at the bottom of the transfer tank. The clean alkaline cleaning solution in the water storage tank is then pumped back into the alkaline solution tank for recycling through the water outlet. D. Ultrasonic Vibration Descaling: After high-temperature alkaline washing and degreasing, the steel wire continues to move forward, passing through the inner cavity of the ultrasonic descaling tank filled with clean water. The built-in ultrasonic generator emits high-frequency ultrasonic waves with a working frequency of 25-40kHz, which produce a cavitation effect in the liquid—that is, generate countless tiny bubbles that collapse instantly, and generate a strong local impact force, which can thoroughly remove stubborn deposits adhering to the surface of the steel wire and the body and dead corners of the ultrasonic descaling tank. Since ultrasonic vibration descaling is a physical cleaning method, it has no chemical corrosion effect on the surface of the steel wire and the body of the ultrasonic descaling tank. E. Neutralization and Rinsing: After ultrasonic descaling, the steel wire continues to move forward, passing through the inner cavity of the neutralization and rinsing tank containing a 1%–2% hydrochloric acid solution. The soaking time is 2–5 minutes, and the stirring device is turned on to ensure uniform neutralization of the steel wire surface and the alkaline substances remaining in the neutralization and rinsing tank, preventing long-term corrosion caused by alkaline residue. After draining the acid solution, the pH value of the final rinsing water should be measured to be 6.5–7.5, thus ensuring that there are no chemical residues in the neutralization and rinsing tank. F. Drying and Protection: After ultrasonic descaling, the steel wire continues to move forward and is dried using a hot air drying device to thoroughly dry the surface of the steel wire and remove moisture, preparing it for subsequent processing; the temperature of the hot air drying is 100-200℃, and the drying time is 5-10 minutes.

[0011] The design principle of this invention is as follows: This invention designs an alkaline washing tank with self-cleaning circulation, replacing the traditional large-pool structure for steel wire surface cleaning. This improved tank efficiently and thoroughly cleans the steel wire surface of rolling oil and drawing powder while simultaneously performing self-cleaning circulation of the alkaline washing solution. This effectively prevents oil and drawing powder from adhering to the inner wall and bottom of the tank due to prolonged presence in the solution. Thus, the alkaline washing tank achieves online, automatic, non-destructive, and highly efficient cleaning, eliminating the need for strong acid or alkali soaking, tank damage, manual cleaning, frequent production stoppages, and frequent cleaning solution replacements. This allows the alkaline washing solution in the tank to remain clean for extended periods, ensuring continuous and stable production line operation, reducing equipment wear and tear, extending service life, lowering labor intensity, and reducing production costs. Therefore, it is also easy to operate and readily applicable.

[0012] More specifically, the process of cleaning the steel wire surface using the method of this invention is as follows: A) pre-drainage treatment; B) high-pressure segmented circulation rinsing; C) high-temperature alkaline washing and degreasing of the steel wire, combined with self-cleaning of the tank; D) ultrasonic vibration descaling; E) neutralization rinsing; F) drying and protection. On one hand, this invention uses a triple-cleaning synergistic operation of "high-pressure segmented circulation rinsing + high-temperature alkaline washing and degreasing + ultrasonic vibration descaling" to efficiently and thoroughly clean the rolling oil and wire drawing powder from the steel wire surface—that is, this invention mainly uses a combination of high-pressure segmented circulation rinsing and high-temperature alkaline washing and degreasing to efficiently break down and decompose large pieces of oil and wire drawing powder mixed deposits on the steel wire surface, which can significantly improve cleaning efficiency; then, the purely physical ultrasonic vibration descaling technology gently and non-destructively removes stubborn deposits from the steel wire surface, which can significantly improve the cleaning effect. On the other hand, the method of the present invention can efficiently and thoroughly clean the rolling oil and drawing powder on the surface of the steel wire, while also enabling self-cleaning circulation of the alkaline washing solution. Specifically, the alkaline washing solution containing floating oil and drawing powder in the alkaline tank flows out from the outlet U-shaped channel and into an annular flow channel surrounding three sides of the alkaline tank. It then flows through the annular flow channel to the floating sedimentation tank area located on the fourth side, and passes through the first floating tank, first sedimentation tank, second floating tank, and second sedimentation tank sequentially arranged within the floating sedimentation tank area twice. The process involves both floating debris purification and two sediment purification steps. The oil sludge separated by the floating debris purification is promptly discharged through the oil outlet on the upper part of the outer wall of the floating pool, while the sludge separated by the sediment purification is promptly sucked out under negative pressure through the slag outlet on the lower part of the outer wall of the sedimentation pool. The alkaline cleaning solution, which maintains a certain level of cleanliness after two floating debris removals and two sediment removals, flows downwards into the inner cavity of the next-level water storage tank through the water inlet located at the bottom of the transfer tank. The clean alkaline cleaning solution in the water storage tank is then pumped back into the alkaline solution tank for recycling through the water outlet.

[0013] The beneficial technical effects of the present invention are as follows: The device and method of this invention can efficiently and thoroughly clean the rolling oil and drawing powder on the surface of steel wire, while simultaneously performing self-cleaning circulation of the alkaline washing solution. This ensures that the oil floating on the alkaline washing solution and the drawing powder distributed within it, generated during high-temperature alkaline washing and degreasing of the steel wire, are automatically purified and recycled online in real time. This effectively prevents oil and drawing powder from adhering to the inner wall and bottom of the alkaline washing tank due to prolonged presence in the solution. Thus, it achieves online, automatic, non-destructive, and efficient cleaning of the alkaline washing tank, solving the technical problems of traditional methods that require frequent production stoppages and manual cleaning after soaking in strong acids and alkalis, resulting in high labor intensity, low cleaning efficiency, chemical corrosion that damages the tank, and frequent replacement of the alkaline washing solution. This invention eliminates the need for strong acid and alkali soaking, tank damage, manual cleaning, frequent production stoppages, and frequent cleaning solution replacements. It allows the alkaline washing solution in the tank to remain clean for extended periods, ensuring continuous and stable operation of the production line, reducing equipment wear and tear, extending service life, lowering labor intensity, reducing production costs, and is easy to operate and promote. Attached Figure Description

[0014] Figure 1 This is a process flow diagram of cleaning the surface of steel wire using the present invention.

[0015] Figure 2 This is a process flow diagram of using the present invention to clean an alkaline washing tank.

[0016] Figure 3 This is a schematic diagram of the alkaline washing tank in this invention.

[0017] Figure 4 This is a cross-sectional view of the floating sedimentation tank area in the alkaline washing tank.

[0018] Parts numbered in the diagram: 1. Cleaning tank; 2. Alkaline washing tank; 3. Ultrasonic descaling tank; 4. Neutralization and rinsing tank; 5. Inlet U-shaped trough plate; 5'. Outlet U-shaped trough plate; 6. Alkali solution tank; 7. Floating sedimentation tank area; 7-1. High partition plate; 7-1-1. Fluid channel; 7-2. Low partition plate; a. First floating tank; b. First sedimentation tank; c. Second floating tank; d. Second sedimentation tank; e. Transfer tank; 8. Inlet; 9. Outlet; 10. Circular flow channel; 11. Oil outlet; 12. Slag outlet; 13. Water storage tank; 14. Composite tank; 15. Steel wire. Detailed Implementation

[0019] The apparatus of the present invention will be further described below with reference to the accompanying drawings: like Figure 3 , Figure 4As shown, the device for efficiently and non-destructively cleaning the surface of steel wire and the alkaline washing tank of the present invention includes a cleaning tank 1 arranged coaxially in sequence, an alkaline washing tank 2 with a self-cleaning circulation function, an ultrasonic descaling tank 3, and a neutralization and rinsing tank 4; the alkaline washing tank 2 is composed of a water storage tank 13 with a lower sealed cavity structure and a composite tank 14 with an upper open cavity structure; the composite tank 14 includes an alkaline solution tank 6 with a cuboid structure located at the center of the open cavity of the composite tank, an annular flow channel 10 surrounding three sides of the alkaline solution tank 6, and a floating sedimentation tank area 7 located outside the fourth side; the floating sedimentation tank area 7 is composed of a high partition 7. -1 and the low partition 7-2 are separated by an alternating arrangement to form a first floating pool a, a first sedimentation pool b, a second floating pool c, a second sedimentation pool d, and a transfer pool e that are connected in sequence. The inlet end of the first floating pool a is connected to the outlet end of the annular flow channel 10. An inlet 8 connected to a water storage tank 13 is opened at the bottom of the transfer pool e. An outlet 9 connected to a pumping system is opened on the side wall of the water storage tank 13. An oil discharge port 11 is opened on the upper part of the outer side wall of the first floating pool a and the second floating pool c. A slag discharge port 12 is opened on the lower part of the outer side wall of the first sedimentation pool b and the second sedimentation pool d.

[0020] In this invention, the left and right sides of the high partition 7-1 and the low partition 7-2 are welded and fixed to the inner wall of the floating sedimentation tank area 7, the bottom surface of the low partition 7-2 is welded and fixed to the bottom surface of the floating sedimentation tank area 7, and a fluid channel 7-1-1 for adjacent tanks is left between the bottom surface of the high partition 7-1 and the bottom surface of the floating sedimentation tank area 7.

[0021] The alkali tank 6 described in this invention is a rectangular cavity with an open top, consisting of an inlet U-shaped trough plate 5 and an outlet U-shaped trough plate 5' of the same shape and facing each other, together with two side plates and a bottom plate.

[0022] The ultrasonic descaling tank 3 described in this invention has an ultrasonic generator built in it.

[0023] The apparatus of the present invention will be further described below with reference to the accompanying drawings and embodiments: Example 1

[0024] like Figure 1 , Figure 2 As shown in Example 1, the steps of a method for efficiently and non-destructively cleaning the surface of steel wire and the alkaline washing tank are as follows: A. Pre-drainage treatment: Close the inlet and outlet of cleaning tank 1, open the drain valve at the bottom of the tank, and completely drain the residual cleaning liquid in the tank to create a clean working environment for subsequent cleaning steps and avoid diluting the chemical agents with residual liquid; B. High-pressure segmented circulating flushing: After the steel wire 15 enters the inner cavity of the cleaning tank 1, it is divided into three cleaning sections of 2.0 meters each along the length of the 6-meter-long cleaning tank 1. A high-pressure fan-shaped water flow with a water pressure of 1.2MPa and an angle of 45° between the nozzle and the tank wall is used to circulate and flush the steel wire in each cleaning section. The high-pressure fan-shaped water flow effectively impacts and breaks up the clumps of sediment on the surface of the steel wire, and the segmentation ensures that there are no blind spots in the flushing. At the same time, while flushing the steel wire, the bottom of the tank is agitated so that the broken sediment is collected in the collection area and then discharged. C. High-Temperature Alkaline Washing and Degreasing of Steel Wire with Self-Cleaning of the Tank: After high-pressure segmented circulating rinsing, the steel wire 15 continues to move forward and enters the alkaline solution tank 6, which contains an alkaline cleaning solution at 70°C, made of 8% sodium hydroxide, 3% sodium carbonate, and 89% deionized water. The wire is immersed in the alkaline cleaning solution for 8 minutes. During immersion, the self-cleaning circulation of the alkaline cleaning solution mixes and stirs the solution in the alkaline solution tank 6, thereby saponifying and decomposing the oil and drawing powder on the surface of the steel wire. After thorough degreasing and de-oiling treatment by high-temperature alkaline washing, the steel wire exits the alkaline solution tank 6 through the outlet U-shaped channel 5'. Simultaneously, the alkaline cleaning solution in the alkaline solution tank 6, containing floating oil and drawing powder, flows out from the outlet U-shaped channel 5' and enters the annular flow channel 10 surrounding the three sides of the alkaline solution tank 6. The material flows through the annular flow channel 10 to the floating sedimentation tank area 7 located on the fourth periphery. It then passes through the first floating pool a, the first sedimentation tank b, the second floating pool c, and the second sedimentation tank d set in the floating sedimentation tank area 7 for two floating material purifications and two sediment purifications. The oil sludge separated by the floating purification is discharged in time through the oil outlet 11 on the upper part of the outer wall of the floating pool. The filamentous powder sediment separated by the sediment purification is sucked out in time by negative pressure through the slag outlet 12 on the lower part of the outer wall of the sedimentation tank. The alkaline cleaning solution, which maintains a certain cleanliness after two floating material removals and two sediment removals, flows downward into the inner cavity of the water storage tank 13 on the next layer through the water inlet 8 opened at the bottom of the transfer tank e. The clean alkaline cleaning solution in the water storage tank 13 is then pumped back into the alkaline solution tank 6 for recycling through the water outlet 9. D. Ultrasonic Vibration Descaling: After being degreased by high-temperature alkaline washing, the steel wire 15 continues to move forward, passing through the inner cavity of the ultrasonic descaling tank 3 filled with clean water. The built-in ultrasonic generator emits high-frequency ultrasonic waves with a working frequency of 40kHz, which produce a cavitation effect in the liquid—that is, generate countless tiny bubbles that collapse instantly, and generate a strong local impact force, which can thoroughly remove stubborn deposits adhering to the surface of the steel wire and the tank body and dead corners of the ultrasonic descaling tank 3. Since ultrasonic vibration descaling is a physical cleaning, it has no chemical corrosion effect on the surface of the steel wire and the tank body of the ultrasonic descaling tank 3. E. Neutralization and Rinsing: After being descaled by ultrasonic vibration, the steel wire 15 continues to move forward and passes through the inner cavity of the neutralization and rinsing tank 4, which contains a 1.5% hydrochloric acid solution. The soaking time is 3 minutes, and the stirring device is turned on to ensure uniform neutralization of the steel wire surface and the alkaline substances remaining in the neutralization and rinsing tank 4, preventing long-term corrosion caused by alkaline residue. After the acid is discharged, the pH value of the final rinsing water is measured to be 7.5, which ensures that there are no chemical residues in the cavity of the neutralization and rinsing tank 4.

[0025] F. Drying and Protection: After being descaled by ultrasonic vibration, the steel wire 15 continues to move forward and is dried by hot air drying device to thoroughly dry the surface of the steel wire and remove moisture, thus preparing it for subsequent processing; the temperature of hot air drying is 150℃ and the drying time is 8 minutes. Example 2

[0026] like Figure 1 , Figure 2 As shown in the embodiment, the steps of a method for efficiently and non-destructively cleaning the surface of steel wire and the alkaline washing tank are as follows: A. Pre-drainage treatment: Close the inlet and outlet of cleaning tank 1, open the drain valve at the bottom of the tank, and completely drain the residual cleaning liquid in the tank to create a clean working environment for subsequent cleaning steps and avoid diluting the chemical agents with residual liquid; B. High-pressure segmented circulating flushing: After the steel wire 15 enters the inner cavity of the cleaning tank 1, it is divided into three cleaning sections of 3.0 meters each along the length of the 9-meter-long cleaning tank 1. A high-pressure fan-shaped water flow with a water pressure of 1.5MPa and an angle of 60° between the nozzle and the tank wall is used to circulate and flush the steel wire in each cleaning section. The high-pressure fan-shaped water flow effectively impacts and breaks up the clumps of sediment on the surface of the steel wire, and the segmentation ensures that there are no blind spots in the flushing. At the same time, while flushing the steel wire, the bottom of the tank is agitated so that the broken sediment is collected in the collection area and then discharged. C. High-Temperature Alkaline Washing and Degreasing of Steel Wire with Self-Cleaning of the Tank: After high-pressure segmented circulating rinsing, the steel wire 15 continues forward and enters the alkaline solution tank 6 through the inlet U-shaped channel plate 5. The alkaline solution is prepared at 80°C and consists of 10% sodium hydroxide, 5% sodium carbonate, and 85% deionized water. The wire is immersed in the alkaline solution for 10 minutes. During immersion, the self-cleaning circulation of the alkaline solution mixes and stirs the solution in the alkaline solution tank 6, thereby saponifying and decomposing the oil and drawing powder on the surface of the steel wire. After thorough degreasing and de-oiling treatment by high-temperature alkaline washing, the steel wire exits the alkaline solution tank 6 through the outlet U-shaped channel plate 5'. Simultaneously, the alkaline cleaning solution in the alkaline solution tank 6, containing floating oil and drawing powder, flows out from the outlet U-shaped channel plate 5' and enters the annular flow channel 10 surrounding the three sides of the alkaline solution tank 6. The material flows through the annular flow channel 10 to the floating sedimentation tank area 7 located on the fourth periphery. It then passes through the first floating pool a, the first sedimentation tank b, the second floating pool c, and the second sedimentation tank d set in the floating sedimentation tank area 7 for two floating material purifications and two sediment purifications. The oil sludge separated by the floating purification is discharged in time through the oil outlet 11 on the upper part of the outer wall of the floating pool. The filamentous powder sediment separated by the sediment purification is sucked out in time by negative pressure through the slag outlet 12 on the lower part of the outer wall of the sedimentation tank. The alkaline cleaning solution, which maintains a certain cleanliness after two floating material removals and two sediment removals, flows downward into the inner cavity of the water storage tank 13 on the next layer through the water inlet 8 opened at the bottom of the transfer tank e. The clean alkaline cleaning solution in the water storage tank 13 is then pumped back into the alkaline solution tank 6 for recycling through the water outlet 9. D. Ultrasonic Vibration Descaling: After being degreased by high-temperature alkaline washing, the steel wire 15 continues to move forward, passing through the inner cavity of the ultrasonic descaling tank 3 filled with clean water. The built-in ultrasonic generator emits high-frequency ultrasonic waves with a working frequency of 30kHz, which produce a cavitation effect in the liquid—that is, generate countless tiny bubbles that collapse instantly, and generate a strong local impact force, which can thoroughly remove stubborn deposits adhering to the surface of the steel wire and the tank body and dead corners of the ultrasonic descaling tank 3. Since ultrasonic vibration descaling is a physical cleaning method, it has no chemical corrosion effect on the surface of the steel wire and the tank body of the ultrasonic descaling tank 3. E. Neutralization and Rinsing: After ultrasonic descaling, the steel wire 15 continues to move forward and passes through the inner cavity of the neutralization and rinsing tank 4, which contains a 2% hydrochloric acid solution. The soaking time is 5 minutes, and the stirring device is turned on to ensure uniform neutralization of the steel wire surface and the alkaline substances remaining in the neutralization and rinsing tank 4, preventing long-term corrosion caused by alkaline residue. After the acid is discharged, the pH value of the final rinse water is measured to be 7, thereby ensuring that there is no chemical residue in the cavity of the neutralization and rinsing tank 4.

[0027] F. Drying and Protection: After being descaled by ultrasonic vibration, the steel wire 15 continues to move forward and is dried by a hot air drying device to thoroughly dry the surface of the steel wire and remove moisture, thus preparing it for subsequent processing; the temperature of the hot air drying is 200℃ and the drying time is 10 minutes. Example 3

[0028] like Figure 1 , Figure 2 As shown in Example 3, the steps of a method for efficiently and non-destructively cleaning the surface of steel wire and the alkaline washing tank are as follows: A. Pre-drainage treatment: Close the inlet and outlet of cleaning tank 1, open the drain valve at the bottom of the tank, and completely drain the residual cleaning liquid in the tank to create a clean working environment for subsequent cleaning steps and avoid diluting the chemical agents with residual liquid; B. High-pressure segmented circulating flushing: After the steel wire 15 enters the inner cavity of the cleaning tank 1, it is divided into four cleaning sections of 1.5 meters each along the length of the 6-meter-long cleaning tank 1. A high-pressure fan-shaped water flow with a water pressure of 0.8MPa and an angle of 30° between the nozzle and the tank wall is used to circulate and flush the steel wire in each cleaning section. The high-pressure fan-shaped water flow effectively impacts and breaks up the clumps of sediment on the surface of the steel wire, and the segmentation ensures that there are no blind spots in the flushing. At the same time, while flushing the steel wire, the bottom of the tank is agitated so that the broken sediment is collected in the collection area and then discharged. C. High-Temperature Alkaline Washing and Degreasing of Steel Wire with Self-Cleaning of the Tank: After high-pressure segmented circulating rinsing, the steel wire 15 continues to move forward and enters the alkaline solution tank 6, which contains an alkaline cleaning solution at 60°C, made of 5% sodium hydroxide, 2% sodium carbonate, and 93% deionized water by mass fraction. The wire is immersed in the alkaline cleaning solution for 5 minutes. During immersion, the self-cleaning circulation of the alkaline cleaning solution mixes and stirs the solution in the alkaline solution tank 6, thereby saponifying and decomposing the oil and drawing powder on the surface of the steel wire. After thorough degreasing and de-oiling treatment by high-temperature alkaline washing, the steel wire exits the alkaline solution tank 6 through the outlet U-shaped channel 5'. Simultaneously, the alkaline cleaning solution in the alkaline solution tank 6, containing floating oil and drawing powder, flows out from the outlet U-shaped channel 5' and enters the annular flow channel 10 surrounding the three sides of the alkaline solution tank 6. The material flows through the annular flow channel 10 to the floating sedimentation tank area 7 located on the fourth periphery. It then passes through the first floating pool a, the first sedimentation tank b, the second floating pool c, and the second sedimentation tank d set in the floating sedimentation tank area 7 for two floating material purifications and two sediment purifications. The oil sludge separated by the floating purification is discharged in time through the oil outlet 11 on the upper part of the outer wall of the floating pool. The filamentous powder sediment separated by the sediment purification is sucked out in time by negative pressure through the slag outlet 12 on the lower part of the outer wall of the sedimentation tank. The alkaline cleaning solution, which maintains a certain cleanliness after two floating material removals and two sediment removals, flows downward into the inner cavity of the water storage tank 13 on the next layer through the water inlet 8 opened at the bottom of the transfer tank e. The clean alkaline cleaning solution in the water storage tank 13 is then pumped back into the alkaline solution tank 6 for recycling through the water outlet 9. D. Ultrasonic Vibration Descaling: After being degreased by high-temperature alkaline washing, the steel wire 15 continues to move forward, passing through the inner cavity of the ultrasonic descaling tank 3 filled with clean water. The built-in ultrasonic generator emits high-frequency ultrasonic waves with a working frequency of 25kHz, which generate a cavitation effect in the liquid—that is, generate countless tiny bubbles that collapse instantly, and generate a strong local impact force, which can thoroughly remove stubborn deposits adhering to the surface of the steel wire and the tank body and dead corners of the ultrasonic descaling tank 3. Since ultrasonic vibration descaling is a physical cleaning method, it has no chemical corrosion effect on the surface of the steel wire and the tank body of the ultrasonic descaling tank 3. E. Neutralization and Rinsing: After ultrasonic descaling, the steel wire 15 continues to move forward and passes through the inner cavity of the neutralization and rinsing tank 4, which contains a 1% hydrochloric acid solution. The soaking time is 2 minutes, and the stirring device is turned on to ensure uniform neutralization of the steel wire surface and the alkaline substances remaining in the neutralization and rinsing tank 4, preventing long-term corrosion caused by alkaline residue. After the acid is discharged, the pH value of the final rinsing water is measured to be 6.5, which ensures that there are no chemical residues in the cavity of the neutralization and rinsing tank 4.

[0029] F. Drying and Protection: After being descaled by ultrasonic vibration, the steel wire 15 continues to move forward and is dried by hot air drying device to thoroughly dry the surface of the steel wire and remove moisture, thus preparing it for subsequent processing; the temperature of hot air drying is 100℃ and the drying time is 5 minutes.

[0030] Practical application verification shows that after cleaning steel wire using the method of this invention, there is no visible oil or wire drawing powder residue on the surface of the steel wire, with a removal rate of over 99.5%. This method also allows for simultaneous self-cleaning and circulation of the alkaline washing solution. This ensures that the oil floating on the surface of the alkaline washing solution and the wire drawing powder distributed throughout the solution produced by the high-temperature alkaline washing and degreasing of the steel wire are automatically purified and recycled online in a timely manner. This effectively prevents oil and wire drawing powder from adhering to the inner wall and bottom of the alkaline washing tank due to prolonged presence in the solution, thus achieving online and automatic cleaning of the alkaline washing tank. This method offers rational, non-destructive, and highly efficient cleaning, solving the technical problems associated with traditional methods that require frequent production stoppages and manual cleaning of tanks after soaking in strong acids and alkalis. These problems include high labor intensity, low cleaning efficiency, easy damage to the tanks due to strong chemical corrosion, and frequent replacement of alkaline cleaning solutions. It eliminates the need for soaking in strong acids and alkalis, damage to the tank, manual cleaning, frequent production stoppages, and frequent replacement of cleaning solutions. This allows the alkaline cleaning solution in the alkaline washing tank to remain clean for extended periods, ensuring continuous and stable operation of the production line, reducing equipment wear and tear, extending service life, lowering labor intensity, reducing production costs, and facilitating operation and widespread adoption.

Claims

1. A device for efficiently and non-destructively cleaning the surface of steel wire and an alkaline washing tank, characterized in that: The device includes a cleaning tank (1) arranged in a front-to-back coaxial manner, an alkaline washing tank (2) with a self-cleaning circulation function, an ultrasonic descaling tank (3), and a neutralization rinsing tank (4); the alkaline washing tank (2) is composed of a water storage tank (13) with a sealed cavity structure in the lower layer and a composite tank (14) with an open cavity structure in the upper layer; the composite tank (14) includes an alkaline liquid tank (6) with a cuboid structure located in the center of the open cavity of the composite tank, an annular flow channel (10) surrounding the three sides of the alkaline liquid tank (6), and a floating sedimentation tank area (7) located outside the fourth side; the floating sedimentation tank area (7) is divided by high partitions (7-1) and low partitions (7-2) alternating front and back. After being separated by a cloth pattern, it forms a first floating pool (a), a first sedimentation pool (b), a second floating pool (c), a second sedimentation pool (d), and a transfer pool (e) that are connected in sequence. The inlet end of the first floating pool (a) is connected to the outlet end of the annular flow channel (10). An inlet (8) connecting to a water storage tank (13) is opened at the bottom of the transfer pool (e). An outlet (9) connecting to a pumping system is opened on the side wall of the water storage tank (13). An oil discharge port (11) is opened on the upper part of the outer side wall of the first floating pool (a) and the second floating pool (c). A slag discharge port (12) is opened on the lower part of the outer side wall of the first sedimentation pool (b) and the second sedimentation pool (d).

2. The device for efficiently and non-destructively cleaning the surface of steel wire and the alkaline washing tank according to claim 1, characterized in that: The left and right sides of the high partition (7-1) and the low partition (7-2) are welded and fixed to the inner wall of the floating sedimentation tank area (7). The bottom surface of the low partition (7-2) is welded and fixed to the bottom surface of the floating sedimentation tank area (7). A fluid channel (7-1-1) for the flow of adjacent tanks is left between the bottom surface of the high partition (7-1) and the bottom surface of the floating sedimentation tank area (7).

3. The device for efficiently and non-destructively cleaning the surface of steel wire and the alkaline washing tank according to claim 1, characterized in that: The alkaline solution tank (6) is a rectangular cavity with an open top, consisting of an inlet U-shaped trough plate (5) and an outlet U-shaped trough plate (5') of the same shape and facing each other, together with two side plates and a bottom plate.

4. The device for efficiently and non-destructively cleaning the surface of steel wire and the alkaline washing tank according to claim 1, characterized in that: An ultrasonic generator is built into the ultrasonic descaling tank (3).

5. A method for efficiently and thoroughly cleaning the surface of steel wire and an alkaline washing tank using the device described in claim 1, characterized in that: The steps of the method are as follows: A. Pre-drainage treatment: Close the inlet and outlet of the cleaning tank (1), open the drain valve at the bottom of the tank, and completely drain the residual cleaning liquid in the tank to create a clean working environment for subsequent cleaning steps and avoid the residual liquid from diluting the chemical agents. B. High-pressure segmented circulating flushing: After the steel wire (15) enters the inner cavity of the cleaning tank (1), it is divided into several cleaning sections with a length of 1.5 to 3.0 meters along the length of the cleaning tank (1). High-pressure fan-shaped water flow with a water pressure of 0.8 to 1.5 MPa and an angle of 30° to 60° between the nozzle and the tank wall is used to circulate and flush the steel wire in each cleaning section. The high-pressure fan-shaped water flow effectively impacts and breaks up the clumps of sediment on the surface of the steel wire. The segmentation ensures that there are no blind spots in the flushing. At the same time, while flushing the steel wire, the bottom of the tank is stirred so that the broken sediment is collected in the collection area and then discharged. C. High-temperature alkaline washing and degreasing of steel wire with self-cleaning of the tank: After high-pressure segmented circulation rinsing, the steel wire (15) continues to move forward and enters the alkaline tank (6) through the inlet U-shaped trough (5). The alkaline cleaning solution is made of 5% to 10% sodium hydroxide, 2% to 5% sodium carbonate, and the remainder is deionized water at 60 to 80°C. The wire is soaked in the alkaline cleaning solution for 5 to 10 minutes. During the soaking, the alkaline cleaning solution in the alkaline tank (6) is mixed and stirred by the self-cleaning circulation of the alkaline cleaning solution, thereby saponifying and decomposing the oil and drawing powder on the surface of the steel wire. After being thoroughly degreased and de-powdered by high-temperature alkaline washing, the steel wire passes through the outlet U-shaped trough (5') and exits the alkaline tank (6). At the same time, the alkaline cleaning solution in the alkaline tank (6) containing oil and drawing powder flows out from the outlet U-shaped trough (5') and enters the annular flow channel (1) surrounding the three sides of the alkaline tank (6). 0), flows through the annular flow channel (10) to the floating sedimentation tank area (7) located on the fourth side periphery, and passes through the first floating pool (a), the first sedimentation tank (b), the second floating pool (c), and the second sedimentation tank (d) set in the floating sedimentation tank area (7) for two floating purifications and two sediment purifications. The oil sludge separated by floating purification is discharged in time through the oil outlet (11) on the upper part of the outer wall of the floating pool, and the filament powder sludge separated by sediment purification is sucked out in time by negative pressure through the slag outlet (12) on the lower part of the outer wall of the sedimentation tank. The alkaline cleaning liquid that maintains a certain cleanliness after two floating purifications and two sediment purifications flows down into the inner cavity of the water storage tank (13) of the next layer through the water inlet (8) opened at the bottom of the transfer tank (e). The clean alkaline cleaning liquid in the water storage tank (13) is then pumped back to the alkaline liquid tank (6) for recycling through the water outlet (9). D. Ultrasonic oscillation descaling: The steel wire (15) after being degreased by high-temperature alkaline washing continues to move forward and passes through the inner cavity of the ultrasonic descaling tank (3) filled with clean water. The built-in ultrasonic generator emits high-frequency ultrasonic waves with a working frequency of 25 to 40 kHz, which generate cavitation effect in the liquid—that is, generate countless tiny bubbles that collapse instantly and generate strong local impact force, which can thoroughly remove stubborn deposits attached to the surface of the steel wire and the tank body and dead corners of the ultrasonic descaling tank (3). Since ultrasonic oscillation descaling is a physical cleaning, it has no chemical corrosion effect on the surface of the steel wire and the tank body of the ultrasonic descaling tank (3). E. Neutralization and rinsing: The steel wire (15) after ultrasonic descaling continues to move forward and passes through the inner cavity of the neutralization and rinsing tank (4) containing a dilute hydrochloric acid solution with a mass fraction of 1% to 2%. The soaking time is 2 to 5 minutes, and the stirring device is turned on to ensure uniform neutralization of the steel wire surface and the alkaline substances remaining in the neutralization and rinsing tank (4) to prevent long-term corrosion caused by alkaline residue. After the acid is discharged, the pH value of the final rinse water should be measured to be 6.5 to 7.5, so as to ensure that there is no chemical residue in the cavity of the neutralization and rinsing tank (4). F. Drying and protection: After being descaled by ultrasonic vibration, the steel wire (15) continues to move forward and is dried by hot air drying device to make the surface of the steel wire completely dry and eliminate moisture, so as to prepare for subsequent processing; the temperature of hot air drying is 100-200℃ and the drying time is 5-10 minutes.

Images