A cleaning device for titanium alloy cold-rolled strip coils

Abstract

The utility model discloses a kind of for titanium alloy cold-rolled strip coil cleaning device, it is related to titanium alloy technical field.When titanium alloy cold-rolled strip coil is cleaned, first, most of the oil dirt of cold-rolled strip coil is stripped by high-pressure spraying component;Then, cold-rolled strip coil is deeply cleaned and scrubbed by scrubbing component;Finally, by high-pressure cleaning component, fine titanium powder and stubborn oil film are removed, avoid residual oil dirt high-temperature carbonization to form stain, solve the problem of traditional low-pressure spraying or chemical soaking cleaning not thoroughly, slow, not environmental protection.Through the path of cold-rolled strip coil through brush roll and the path of through squeeze roll are set to S type path, offset the transverse force to cold-rolled strip coil, prevent cold-rolled strip coil from running off, shaking when high-speed operation, avoid the brush mark and micro-scratch generated by traditional single-side scrubbing.In addition, since high-pressure spraying component, scrubbing component, high-pressure cleaning component and squeeze roll component work cooperatively good stability, 120m / min of super-speed stable cleaning can be realized.

Description

Technical Field

[0001] This utility model relates to the field of titanium alloy technology, specifically to a cleaning device for cold-rolled titanium alloy strip coils. Background Technology

[0002] Cold rolling is a crucial process in the production of high-performance titanium and titanium alloy strip coils. To ensure rolling quality, rolling oil (emulsion) is used for lubrication and cooling during cold rolling. This rolling oil can leave residues of oil, grease, and tiny titanium metal powders (titanium powder) on the strip coil surface. Therefore, before subsequent processes such as annealing, the strip coil must be thoroughly degreased and cleaned to prevent these residues from carbonizing at high temperatures, forming stubborn stains, discoloration, and other defects that severely affect the surface quality of the titanium strip coil.

[0003] In existing technologies, cleaning methods for cold-rolled titanium strip coils include chemical degreasing tank immersion and low-pressure spray cleaning. When using chemical degreasing tank immersion, the strip passes through an alkaline or acidic cleaning agent tank at low speed, relying on chemical action to dissolve the grease. This method is slow, energy-intensive, consumes large amounts of chemicals, and poses environmental risks. When using low-pressure spray cleaning, low-pressure water is used for spray rinsing during degreasing. For high-speed production lines, the impact force of low-pressure water is insufficient, and low-pressure spray cleaning is difficult to thoroughly remove firmly attached micro-titanium powder and stubborn oil film, resulting in limited cleaning effectiveness. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model proposes a cleaning device for cold-rolled titanium alloy strip coils, in order to solve the problems of incomplete cleaning, slow speed, and environmental unfriendliness of cold-rolled titanium alloy strip coils.

[0005] The cleaning device for cold-rolled titanium alloy strip coils provided by this utility model includes: a high-pressure spray assembly, a brush washing assembly, a high-pressure cleaning assembly, and a squeeze roller assembly arranged sequentially along the conveying direction of the cold-rolled titanium alloy strip coil; the high-pressure spray assembly, the brush washing assembly, the high-pressure cleaning assembly, and the squeeze roller assembly are all disposed in a degreasing chamber. The high-pressure spray assembly includes a first nozzle arranged symmetrically in the upper and lower parts, and the spray pressure of the first nozzle is 10-20 MPa; The brushing assembly includes multiple pairs of brush rollers arranged symmetrically in the upper and lower parts, and the path of the titanium alloy cold-rolled strip coil through the brush rollers is an S-shaped path. The high-pressure cleaning assembly includes a second nozzle arranged symmetrically in the upper and lower parts, and the spray pressure of the second nozzle is 20-30 MPa; The squeeze roll assembly includes squeeze rolls arranged symmetrically on both sides, and the path of the titanium alloy cold-rolled strip coil through the squeeze rolls is an S-shaped path.

[0006] In the cleaning device for cold-rolled titanium alloy strip provided by this utility model, the first nozzle is a fan-shaped nozzle, and a plurality of fan-shaped nozzles are arranged at intervals along the width direction of the cold-rolled titanium alloy strip. The spray overlap area of ​​adjacent fan-shaped nozzles is 20%-25% of the spray area of ​​a single fan-shaped nozzle.

[0007] The cleaning device for cold-rolled titanium alloy strip provided by this utility model further includes an arc-shaped guide shroud, which is located outside the fan-shaped nozzle and has an opening direction consistent with the conveying direction of the cold-rolled titanium alloy strip.

[0008] In the cleaning device for cold-rolled titanium alloy strip provided by this utility model, the spraying liquid of the high-pressure spraying component is a degreasing liquid with a temperature of 50-60℃, and the spraying angle of the high-pressure spraying component is 40°-45°.

[0009] In the cleaning device for cold-rolled titanium alloy strip provided by this utility model, the brush roller is made of nylon or polyurethane.

[0010] In the cleaning device for cold-rolled titanium alloy strip provided by this utility model, the brush roller has a filament density greater than or equal to 300,000 filaments / m², and the diameter of the brush filaments is less than or equal to 0.5 mm.

[0011] The cleaning device for cold-rolled titanium alloy strip provided by this utility model further includes a low-pressure spray structure. The low-pressure spray structure includes multiple direct-spray nozzles. The direct-spray nozzles are evenly distributed along the length of the brush roller, and the spray direction is towards the contact area between the brush roller and the cold-rolled titanium alloy strip. The spray pressure of the direct-spray nozzles is 5-10 MPa.

[0012] In the cleaning device for cold-rolled titanium alloy strip provided by this utility model, the spraying liquid of the high-pressure cleaning component is hot water at a temperature of 65-75°C, and the spraying angle is 60°-65°.

[0013] In the cleaning device for cold-rolled titanium alloy strip provided by this utility model, the squeeze roller is divided into multiple independent elastic segments along its length, and the elastic segments are connected to the roller shaft of the squeeze roller by springs.

[0014] The cleaning device for cold-rolled titanium alloy strip provided by this utility model also includes a collection tank, which is disposed below the brushing assembly.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects: When cleaning titanium alloy cold-rolled strip coils, a high-pressure spray assembly first removes most of the oil and dirt from the coil. Then, the S-shaped path of the brushing assembly extends the contact time with the coil, allowing for deep cleaning. Finally, a high-pressure cleaning assembly removes fine titanium powder and stubborn oil film, preventing residual oil from carbonizing at high temperatures and forming stains. This solves the problems of incomplete cleaning, slow speed, and environmental unfriendliness associated with traditional low-pressure spraying or chemical immersion. By setting the paths of the cold-rolled strip coil through the brush roller and the squeeze roller to an S-shape, the lateral force on the coil is counteracted, preventing deviation and vibration during high-speed operation and avoiding brush marks and micro-scratches caused by traditional single-sided brushing. Furthermore, due to the good stability of the coordinated operation of the high-pressure spray assembly, brushing assembly, high-pressure cleaning assembly, and squeeze roller assembly, ultra-high-speed stable cleaning at 120m / min can be achieved. Attached Figure Description

[0016] Figure 1 This is a diagram of a cleaning device for cold-rolled titanium alloy strip coils provided by this utility model.

[0017] 10. High-pressure spray assembly; 11. First nozzle; 20. Brush assembly; 21. Brush roller; 22. Brush bristles; 23. Direct spray nozzle; 30. High-pressure cleaning assembly; 31. Second nozzle; 40. Squeeze roller assembly; 41. Squeeze roller. Detailed Implementation

[0018] To provide a deeper and clearer understanding of the technical content and effects of this invention, detailed embodiments will be described with reference to the accompanying drawings. It should be noted that the embodiments described are merely one possible implementation of the invention and are not limited to all possible implementations. Under the guidance of this invention, those skilled in the art can derive all alternative implementations without inventive effort, and these alternative implementations also fall within the scope of protection covered by this invention. For parts of the derivational embodiments where conditions are not specifically specified, operation should be performed according to industry-standard conditions or conditions recommended by the manufacturer.

[0019] In the following description, unless otherwise specified, the same reference numerals generally refer to the same or similar elements. The embodiments provided herein do not reflect all implementations of the invention, but are merely exemplary embodiments illustrating apparatuses and methods consistent with certain aspects of the invention. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention.

[0020] like Figure 1As shown, the cleaning device for cold-rolled titanium alloy strip coils of this utility model includes a high-pressure spray assembly 10, a brush washing assembly 20, a high-pressure cleaning assembly 30, and a squeeze roller assembly 40 arranged sequentially along the conveying direction of the cold-rolled titanium alloy strip coil. The high-pressure spray assembly 10, brush washing assembly 20, high-pressure cleaning assembly 30, and squeeze roller assembly 40 are all housed within a degreasing chamber. The high-pressure spray assembly 10 includes first nozzles 11 arranged symmetrically vertically, with a spray pressure of 10-20 MPa. The brush washing assembly 20 includes multiple pairs of brush rollers arranged symmetrically vertically, and the path of the cold-rolled titanium alloy strip coil through the brush rollers is an S-shaped path. The high-pressure cleaning assembly 30 includes second nozzles 31 arranged symmetrically vertically, with a spray pressure of 20-30 MPa. The squeeze roller assembly 40 includes squeeze rollers 41 arranged symmetrically vertically, and the path of the cold-rolled titanium alloy strip coil through the squeeze rollers 41 is an S-shaped path.

[0021] The cleaning device for cold-rolled titanium alloy strip coils provided by this utility model first removes most of the oil stains from the cold-rolled strip coil through the high-pressure spray assembly 10; then, the contact time with the cold-rolled strip coil is extended by the S-shaped path of the brush washing assembly 20 to achieve deep cleaning; finally, the fine titanium powder and stubborn oil film are removed by the high-pressure cleaning assembly 30, avoiding the formation of stains by high-temperature carbonization of residual oil stains. This solves the problems of incomplete cleaning, slow speed, and environmental unfriendliness of traditional low-pressure spraying or chemical immersion cleaning. By setting the paths of the cold-rolled strip coil through the brush roller and through the squeeze roller 41 to S-shaped paths, the lateral force on the cold-rolled strip coil is offset, preventing the strip from deviating and shaking during high-speed operation, and avoiding brush marks and micro-scratches caused by traditional single-sided brushing. In addition, due to the good stability of the coordinated operation of the high-pressure spray assembly 10, brush washing assembly 20, high-pressure cleaning assembly 30, and squeeze roller assembly 40, ultra-high-speed stable cleaning of 120m / min can be achieved.

[0022] It should be noted that single-sided or unidirectional brushing devices have brushing blind spots. During high-speed operation, the continuous unidirectional force exerted by the brush bristles 22 on the cold-rolled strip coil can easily cause the cold-rolled strip coil to deviate and vibrate, resulting in brush marks or micro-scratches. This application avoids brushing blind spots by symmetrically arranging the components vertically and vertically, setting the paths of the cold-rolled strip coil through the brush roller and through the squeeze roller 41 as S-shaped paths. This counteracts the lateral forces acting on the cold-rolled strip coil, avoids brush marks and micro-scratches from single-sided brushing, ensures surface quality, and guarantees uniform brushing of the cold-rolled strip coil.

[0023] It should also be noted that existing technologies struggle to effectively remove firmly adhered titanium powder and residual oil films at high speeds. Consequently, existing technologies suffer from low cleaning speeds, resulting in low cleaning capacity, high consumption of chemical degreasing agents, and high wastewater treatment costs. This application, however, can effectively remove firmly adhered titanium powder and residual oil films at high speeds, achieving ultra-high-speed stable cleaning at 120 m / min, thereby increasing production line cleaning capacity and reducing environmental pressure. It not only thoroughly removes various contaminants, including titanium powder, but also ensures high-quality and undamaged titanium strip surfaces.

[0024] In some embodiments, the first nozzle 11 is a fan-shaped nozzle, with multiple fan-shaped nozzles spaced apart along the width direction of the titanium alloy cold-rolled strip coil. The overlapping area of ​​adjacent fan-shaped nozzles is 20%-25% of the spray area of ​​a single fan-shaped nozzle. The fan-shaped nozzles can be wide fan-shaped nozzles to increase the spray area of ​​a single fan-shaped nozzle. By setting the overlapping area of ​​adjacent fan-shaped nozzles to 20%-25%, the effective spray area of ​​the fan-shaped nozzles on the cold-rolled strip coil is increased on the one hand, and blind spots are avoided, preventing some areas of the cold-rolled strip coil from being left uncleaned. The spray distance can be set to 5-10cm, that is, the straight-line distance between the first nozzle 11 and the surface of the cold-rolled strip coil is 5-10cm, which achieves the maximum effective spray area while avoiding the inability to remove oil stains due to excessive spray distance.

[0025] In some embodiments, the high-pressure spray assembly 10 further includes an arc-shaped guide shroud, which is located outside the fan-shaped nozzle and has its opening direction aligned with the conveying direction of the titanium alloy cold-rolled strip coil. The arc-shaped guide shroud suppresses the splashing of the degreasing liquid, preventing waste and contamination of other equipment components, thus reducing equipment maintenance costs.

[0026] In some embodiments, the spray liquid of the high-pressure spray assembly 10 is a degreasing liquid with a temperature of 50-60°C, and the spray angle of the high-pressure spray assembly 10 is 40°-45°. By setting the spray liquid temperature to 50-60°C, the activity of the degreasing agent is prevented from decreasing due to high temperature, thus avoiding ineffective removal of oil stains. The spray direction of the high-pressure spray assembly 10 is at a 40°-45° angle to the plane of the cold-rolled strip coil to ensure effective removal of oil stains.

[0027] In some embodiments, the brush roller is made of nylon or polyurethane to ensure that the surface of the brush roller is wear-resistant and does not scratch the cold-rolled strip.

[0028] In some embodiments, the brush filaments 22 of the brush roller have a density greater than or equal to 300,000 filaments / m², and a filament diameter less than or equal to 0.5 mm, in order to effectively scrub away oil stains and titanium powder.

[0029] In some embodiments, the density of the brush filaments 22 of the brush roller gradually increases from the center to both sides along the length of the brush roller, with the density of the brush filaments 22 in the edge area of ​​the corresponding titanium alloy cold-rolled strip coil being higher than that in the middle area. Since oil and titanium powder adhere more strongly to the edges of the cold-rolled strip coil, increasing the density of the brush filaments in the edge area ensures uniform cleaning along the width of the cold-rolled strip coil, preventing edge residue from causing subsequent annealing stains. The brush filaments 22 of the brush roller are 12-18mm long, and the ends of the brush filaments 22 facing the surface of the cold-rolled strip coil have a rounded structure to avoid damaging the surface of the cold-rolled strip coil during brushing.

[0030] In some embodiments, a heat-insulating guide roller can be provided between the high-pressure spray assembly 10 and the brushing assembly 20. The heat-insulating guide roller is equipped with a heating chamber, and hot water is introduced into the heating chamber so that the cold-rolled strip can maintain a high temperature when passing through the heat-insulating guide roller, avoiding a sudden drop in the surface temperature of the cold-rolled strip that would cause the oil to re-solidify, ensuring that the oil remains in a softened state during brushing, improving the brushing and peeling efficiency, and reducing the wear of the brush roller bristles.

[0031] In some embodiments, the brushing assembly 20 further includes a low-pressure spray structure comprising multiple direct-spray nozzles 23. These nozzles are evenly distributed along the length of the brush roller, with the spray direction directed towards the contact area between the brush roller and the titanium alloy cold-rolled strip coil. The spray pressure of the direct-spray nozzles 23 is 5-10 MPa. Each brush roller area is equipped with a low-pressure spray structure, using hot water at approximately 45°C for rinsing, effectively removing contaminants brushed off in real time. The S-shaped path allows the cold-rolled strip coil to pass sequentially through multiple pairs of brush rollers, extending the cleaning contact path and offsetting the lateral displacement of the strip due to friction through a symmetrical arrangement.

[0032] In some embodiments, the spray direction of the direct nozzle 23 is directed toward the high-pressure cleaning assembly 30, so as to guide the brushed titanium powder and oil stains toward the high-pressure cleaning assembly 30, avoid the accumulation of brushed contaminants on the surface of the cold-rolled strip between the brushing assembly 20 and the high-pressure cleaning assembly 30, reduce the cleaning difficulty of the high-pressure cleaning assembly 30, and improve the removal efficiency of fine particles.

[0033] In some embodiments, the spray liquid of the high-pressure cleaning component 30 is hot water at a temperature of 65-75°C, and the spray angle is 60°-65°. Using hot water at a pressure of 20-30 MPa, with a water temperature of 75°C and a spray angle of 60°-65°, ensures thorough removal of fine grease and particles from the surface of the cold-rolled strip.

[0034] In some embodiments, a strip thickness sensor can be installed between the high-pressure cleaning assembly 30 and the brushing assembly 20. The strip thickness sensor allows for real-time monitoring of the cold-rolled strip coil thickness, and the pressure of the high-pressure cleaning assembly 30 can be adjusted accordingly. This ensures that the high-pressure cleaning assembly 30 can effectively remove fine grease and particles from the surface of the cold-rolled strip coil. Furthermore, it prevents microscopic deformation of the thin strip coil due to high pressure, improving the adaptability of the cleaning device to various specifications of titanium strip coils.

[0035] In some embodiments, the squeeze roller 41 is divided into multiple independent elastic segments along its length, and the elastic segments are connected to the roller shaft of the squeeze roller 41 by springs. Each elastic segment is connected to the roller shaft by an independent spring. When there is local warping in the cold-rolled strip coil, the elastic segment in the corresponding area can adaptively compress to ensure that each segment is in close contact with the surface of the cold-rolled strip coil, avoiding excessive edge moisture content due to poor local contact, and ensuring consistent squeezing effect across the entire surface of the cold-rolled strip coil.

[0036] In some embodiments, the symmetrically arranged squeeze rollers 41 can adopt a dual-drive mode, and the extrusion pressure can be adjusted through an electrical control system to adapt to cold-rolled strip coils of different thicknesses and effectively reduce the moisture content of the finished product.

[0037] In some embodiments, the squeeze roller assembly 40 further includes a water receiving tray disposed below the squeeze roller 41 to collect water generated during squeezing. The bottom of the water receiving tray has a drain outlet, which is connected to a water circulation system via a pipe. The water circulation system is also connected to a low-pressure spray structure and a high-pressure cleaning assembly 30 for water recycling.

[0038] In some embodiments, the cleaning device for cold-rolled titanium alloy strip coils further includes a collection tank located below the brushing assembly 20. By providing a collection tank below the brushing assembly 20, titanium powder that falls off during brushing can be collected for recycling. Simultaneously, a filter screen can be installed in the collection tank to filter the wastewater generated during brushing. The filtered wastewater can then be piped back to the low-pressure spray structure for reuse.

Claims

1. A cleaning apparatus for cold-rolled titanium alloy strip coils, characterized in that, include: A high-pressure spray assembly, a brush washing assembly, a high-pressure cleaning assembly, and a squeeze roller assembly are arranged sequentially along the conveying direction of the titanium alloy cold-rolled strip coil; the high-pressure spray assembly, the brush washing assembly, the high-pressure cleaning assembly, and the squeeze roller assembly are all housed within a degreasing chamber; The high-pressure spray assembly includes a first nozzle arranged symmetrically in the upper and lower parts, and the spray pressure of the first nozzle is 10-20 MPa; The brushing assembly includes multiple pairs of brush rollers arranged symmetrically in the upper and lower parts, and the path of the titanium alloy cold-rolled strip coil through the brush rollers is an S-shaped path. The high-pressure cleaning assembly includes a second nozzle arranged symmetrically in the upper and lower parts, and the spray pressure of the second nozzle is 20-30 MPa; The squeeze roll assembly includes squeeze rolls arranged symmetrically on both sides, and the path of the titanium alloy cold-rolled strip coil through the squeeze rolls is an S-shaped path.

2. The cleaning apparatus for cold-rolled titanium alloy strip coils according to claim 1, characterized in that, The first nozzle is a fan-shaped nozzle, and multiple fan-shaped nozzles are spaced apart along the width direction of the titanium alloy cold-rolled strip coil. The spray overlap area of ​​adjacent fan-shaped nozzles is 20%-25% of the spray area of ​​a single fan-shaped nozzle.

3. The cleaning apparatus for cold-rolled titanium alloy strip coils according to claim 2, characterized in that, The high-pressure spray assembly also includes an arc-shaped flow guide shroud, which is located outside the fan-shaped nozzle and has an opening direction consistent with the conveying direction of the titanium alloy cold-rolled strip coil.

4. The cleaning apparatus for cold-rolled titanium alloy strip coils according to claim 3, characterized in that, The spray liquid of the high-pressure spray assembly is a degreasing liquid with a temperature of 50-60℃, and the spray angle of the high-pressure spray assembly is 40°-45°.

5. The cleaning apparatus for cold-rolled titanium alloy strip coils according to claim 1, characterized in that, The brush roller is made of nylon or polyurethane.

6. The cleaning apparatus for cold-rolled titanium alloy strip coils according to claim 5, characterized in that, The brush roller has a filament density of 300,000 filaments / m² or greater, and the diameter of the filaments is less than or equal to 0.5 mm.

7. The cleaning apparatus for cold-rolled titanium alloy strip coils according to claim 6, characterized in that, The brushing assembly also includes a low-pressure spray structure, which includes multiple direct-spray nozzles. The direct-spray nozzles are evenly distributed along the length of the brush roller and spray towards the contact area between the brush roller and the titanium alloy cold-rolled strip. The spray pressure of the direct-spray nozzles is 5-10 MPa.

8. The cleaning apparatus for cold-rolled titanium alloy strip coils according to any one of claims 1 to 7, characterized in that, The spraying liquid of the high-pressure cleaning component is hot water at a temperature of 65-75°C, and the spraying angle is 60°-65°.

9. The cleaning apparatus for cold-rolled titanium alloy strip coils according to any one of claims 1 to 7, characterized in that, The squeezing roller is divided into multiple independent elastic segments along its length, and the elastic segments are connected to the roller shaft of the squeezing roller by springs.

10. The cleaning apparatus for cold-rolled titanium alloy strip coils according to any one of claims 1 to 7, characterized in that, It also includes a collection tank disposed below the scrubbing assembly.

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