Online cleaning method and equipment for steel wire ropes

Abstract

This invention provides an online cleaning method and apparatus for steel wire ropes, comprising: Step S1: A carbon dioxide compressor pump draws in liquid carbon dioxide, which is then delivered to a mixing nozzle. The carbon dioxide is sprayed onto the surface of the steel wire rope to be cleaned through the mixing nozzle, creating a layer of liquid carbon dioxide film on the surface of the steel wire rope; Step S2: The liquid carbon dioxide film on the surface of the steel wire rope is irradiated with a laser to induce cavitation of the liquid carbon dioxide. The shock wave generated by cavitation cleans the steel wire rope. Through the liquid film formed by the liquid carbon dioxide and the laser-induced cavitation, deep cleaning can be performed without direct contact with the steel wire rope. The liquid carbon dioxide film provides a uniform coating layer, and the force of the shock wave generated by cavitation can quickly remove adhering substances and contaminants from the surface of the steel wire rope. This allows for rapid cleaning when the steel wire rope needs cleaning, reduces the time required for cleaning, and achieves a highly efficient cleaning effect.

Description

Technical Field

[0001] This invention relates to the field of fuel measurement technology, and more specifically, to an online cleaning method and device for steel wire ropes. Background Technology

[0002] Mining wire ropes are essential equipment in coal production, widely used in mine hoisting, endless rope winches, aerial cableways, belt conveyor traction, electric shovels, and anchor pulleys. Most mining wire ropes operate in dusty environments, where dust and oil accumulate on their surfaces, forming large, difficult-to-remove stains. This not only affects performance and accelerates wear, but prolonged use without maintenance can also reduce the rope's lifespan or prevent it from performing its intended function, potentially leading to safety accidents and threatening safe coal mine production.

[0003] Existing wire rope cleaning methods require disassembling the wire rope or shutting down the equipment, and then using brush cleaning, water washing, or cleaning agents. These methods suffer from problems such as untimely cleaning and poor cleaning results, leading to low cleaning efficiency. Summary of the Invention

[0004] This invention provides an online cleaning method and device for steel wire ropes to solve the problem of low cleaning efficiency in existing steel wire rope cleaning methods.

[0005] To address the aforementioned problems, according to one aspect of the present invention, a method for online cleaning of steel wire ropes is provided, comprising:

[0006] Step S1: The carbon dioxide compressor pump draws in liquid carbon dioxide and then delivers it to the mixing nozzle. The carbon dioxide is sprayed onto the surface of the wire rope to be cleaned through the mixing nozzle, so that a layer of liquid carbon dioxide film is generated on the surface of the wire rope.

[0007] Step S2: The carbon dioxide liquid film on the surface of the steel wire rope is irradiated by laser to induce cavitation of liquid carbon dioxide, and the shock wave generated by cavitation is used to clean the steel wire rope.

[0008] Furthermore, in step S1, when the liquid carbon dioxide passes through the mixing nozzle, it is divided into two parts. One part absorbs heat and expands, vaporizing into carbon dioxide gas and forming a high-speed jet stream. The other part loses heat, cools down and solidifies into dry ice particles, which are mixed into the high-speed jet stream. The high-speed jet stream containing dry ice particles is sprayed onto the surface of the wire rope. Under the impact, the dry ice particles close to the surface of the wire rope are impacted and pressured into liquid, forming a carbon dioxide liquid film.

[0009] Furthermore, in step S2, the laser irradiation is focused on the location of the liquid carbon dioxide film. The laser heats the liquid carbon dioxide to induce cavitation bubbles, and the collapse of the bubbles generates shock waves, thereby cleaning the surface of the wire rope.

[0010] Furthermore, in step S1, multiple mixing nozzles are arranged circumferentially on the wire rope; in step S2, the carbon dioxide liquid film on the surface of the wire rope is irradiated with a laser circumferentially on the wire rope.

[0011] According to another aspect of the present invention, a wire rope cleaning device is provided, using the above-described online wire rope cleaning method. The wire rope cleaning device includes a cavitation-induced cleaning chamber, a mixing nozzle, a cavitation-induced laser, a compressor pump, a liquid carbon dioxide storage tank, and a laser power supply. The mixing nozzle and the cavitation-induced laser are disposed in the cavitation-induced cleaning chamber. The cavitation-induced cleaning chamber has holes on both sides for the wire rope to pass through. The mixing nozzle includes a liquid inlet chamber, a flow divider chamber, and a mixing chamber arranged sequentially. The liquid inlet chamber is connected to the outlet of the compressor pump. The flow divider chamber has a flow divider plate. The outlet of the mixing chamber sprays carbon dioxide onto the surface of the wire rope to be cleaned, causing a layer of carbon dioxide liquid film to be generated on the surface of the wire rope. The cavitation-induced laser is used to generate laser light and irradiate the carbon dioxide liquid film on the surface of the wire rope.

[0012] Furthermore, multiple mixing nozzles and cavitation-induced lasers are arranged in the cavitation-induced cleaning chamber, and the multiple mixing nozzles and multiple cavitation-induced lasers are set in a one-to-one correspondence.

[0013] Furthermore, the cavitation-induced laser is equipped with a focal length adjustment screw and a focusing lens. The focusing lens has a thread at the mating position with the focal length adjustment screw, and the focusing lens can move along the focal length adjustment screw when the focal length adjustment screw is rotated.

[0014] Furthermore, both the mixing nozzle and the cavitation-induced laser are inclinedly arranged on the inner wall of the cavitation-induced cleaning chamber, and the jet point of the mixing nozzle and the irradiation point of the corresponding cavitation-induced laser are at the same position.

[0015] Furthermore, the outer wall of the mixing nozzle is made of heat-insulating material, and the flow divider divides the flow chamber into an expansion chamber and a solidification chamber with different flow areas. After the liquid carbon dioxide in the inlet chamber flows into the flow divider chamber, the liquid carbon dioxide is divided under the action of the flow divider. The liquid carbon dioxide entering the expansion chamber absorbs heat and expands, vaporizing into carbon dioxide gas and forming a high-speed jet flow. The liquid carbon dioxide entering the solidification chamber loses heat, cools down and solidifies into dry ice particles, and then mixes into the high-speed jet flow in the mixing chamber.

[0016] Furthermore, the cavitation-induced laser is equipped with a resonant cavity and a focus adjustment motor. The focus adjustment screw is driven to rotate by the focus adjustment motor to adapt to steel wire ropes of different diameters by adjusting the laser focusing position.

[0017] The present invention provides an online cleaning method for steel wire ropes, comprising: step S1: a carbon dioxide compressor pump draws in liquid carbon dioxide and then delivers it to a mixing nozzle, through which the carbon dioxide is sprayed onto the surface of the steel wire rope to be cleaned, thereby generating a layer of liquid carbon dioxide film on the surface of the steel wire rope; step S2: the liquid carbon dioxide film on the surface of the steel wire rope is irradiated by a laser to induce cavitation of the liquid carbon dioxide, and the shock wave generated by the cavitation cleans the steel wire rope.

[0018] In this method, a liquid film formed by liquid carbon dioxide and laser-induced cavitation enable deep cleaning without direct contact with the wire rope. The carbon dioxide liquid film provides a uniform coating, and the shock wave generated by cavitation quickly removes oil, rust, dust, dirt, and other contaminants from the wire rope surface. This allows for rapid cleaning when needed, reducing cleaning time and achieving highly efficient cleaning. Furthermore, since the carbon dioxide liquid and laser cleaning process do not directly contact the wire rope, they avoid the physical wear and scratches common in traditional cleaning methods, protecting the wire rope surface and extending its service life. The cleaning method in this embodiment does not require the addition of water or cleaning agents, thus avoiding water waste and environmental impact. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0020] Figure 1 A flowchart of an online wire rope cleaning method provided by an embodiment of the present invention is shown;

[0021] Figure 2 A top sectional view of the wire rope cleaning device provided in an embodiment of the present invention is shown;

[0022] Figure 3 A side sectional view of the wire rope cleaning device provided in an embodiment of the present invention is shown;

[0023] Figure 4 A schematic diagram of the structure of the mixing nozzle of the wire rope cleaning device provided in an embodiment of the present invention is shown;

[0024] Figure 5A schematic diagram of the cavitation-induced laser in the wire rope cleaning device provided in an embodiment of the present invention is shown.

[0025] Figure 6 A schematic diagram showing the location of laser-induced liquid carbon dioxide cavitation is provided.

[0026] The above figures include the following reference numerals:

[0027] 10. Cavitation-induced cleaning chamber;

[0028] 20. Mixing nozzle; 21. Inlet chamber; 22. Flow divider chamber; 23. Flow divider baffle; 24. Mixing chamber;

[0029] 30. Cavitation-induced laser; 31. Focusing screw; 32. Focusing lens; 33. Resonant cavity; 34. Focusing motor;

[0030] 40. Steel wire rope;

[0031] 50. Compression pump;

[0032] 60. Liquid carbon dioxide storage tank;

[0033] 70 laser power supply. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0035] like Figures 1 to 6 As shown, an embodiment of the present invention provides an online cleaning method for steel wire rope, including: Step S1: Carbon dioxide compressor pump 50 draws in liquid carbon dioxide and then delivers it to mixing nozzle 20. The mixing nozzle 20 sprays carbon dioxide onto the surface of the steel wire rope 40 to be cleaned, so that a layer of liquid carbon dioxide film is generated on the surface of the steel wire rope 40.

[0036] Step S2: The carbon dioxide liquid film on the surface of the steel wire rope 40 is irradiated by laser to induce cavitation of liquid carbon dioxide, and the shock wave generated by cavitation is used to clean the steel wire rope 40.

[0037] In this embodiment, deep cleaning can be achieved without direct contact with the wire rope 40 through a liquid film formed by liquid carbon dioxide and laser-induced cavitation (i.e., rapid vaporization of the liquid film formed by heating the carbon dioxide). The carbon dioxide liquid film provides a uniform coating, and the shock wave generated by cavitation quickly removes oil, rust, dust, dirt, and other deposits from the surface of the wire rope. This allows for rapid cleaning when the wire rope 40 needs cleaning, reducing the time required and achieving a highly efficient cleaning effect. Furthermore, since the carbon dioxide liquid and laser cleaning process do not directly contact the wire rope 40, the physical wear and scratches common in traditional cleaning methods are avoided, protecting the surface of the wire rope 40 and extending its service life. The cleaning method in this embodiment does not require the addition of water or cleaning agents, thus avoiding water waste and environmental impact from cleaning agents.

[0038] Furthermore, in step S1, when the liquid carbon dioxide passes through the mixing nozzle 20, it is divided into two parts. One part absorbs heat and expands, vaporizing into carbon dioxide gas and forming a high-speed jet stream. The other part loses heat, cools down and solidifies into dry ice particles, which are mixed into the high-speed jet stream. The high-speed jet stream containing dry ice particles is sprayed onto the surface of the wire rope 40. Under the impact, the dry ice particles close to the surface of the wire rope 40 are impacted and pressured into liquid, forming a carbon dioxide liquid film.

[0039] In this embodiment, when liquid carbon dioxide passes through the mixing nozzle 20, it absorbs and releases heat, causing it to split into two parts. One part absorbs the heat released by the mixing nozzle 20 and expands, vaporizing into carbon dioxide gas and forming a high-speed jet stream. The other part absorbs some heat from the mixing nozzle 20, cools down, and solidifies into dry ice particles, which are then mixed into the high-speed jet stream and sprayed onto the surface of the wire rope 40. Under the impact, the dry ice particles close to the surface of the wire rope 40 are impacted and compressed, turning into liquid and forming a carbon dioxide liquid film. This film effectively covers the surface of the wire rope 40 and penetrates into the tiny gaps on the surface, encapsulating contaminants. The low temperature of the liquid carbon dioxide makes the contaminants brittle, which, combined with subsequent steps, helps remove difficult-to-remove or strongly adhering contaminants such as oil and rust.

[0040] Specifically, in step S2, the laser irradiation is focused on the location of the liquid carbon dioxide film. The laser heats the liquid carbon dioxide to induce cavitation bubbles, and the collapse of the bubbles generates shock waves, thereby cleaning the surface of the steel wire rope 40.

[0041] In this embodiment, laser irradiation is focused on the location of the liquid carbon dioxide film, causing the liquid carbon dioxide to rapidly vaporize under localized high temperature, forming bubbles. These bubbles expand and collapse rapidly, generating shock waves that break down and remove the brittle contaminants encapsulated by the liquid carbon dioxide. The entire process is simple and efficient, reducing cleaning time and improving cleaning efficiency. The shock waves generated when the bubbles collapse are not only effective against dirt on the surface of the wire rope 40, but also, due to their penetrating power, can reach deep into the tiny pores, gaps, and surface textures of the wire rope 40, removing dirt that is difficult to clean using traditional methods. Furthermore, the entire cleaning process involves no friction or physical impact, therefore causing no physical wear or scratches to the surface of the wire rope 40.

[0042] In step S1, multiple mixing nozzles 20 are arranged circumferentially on the wire rope 40; in step S2, the carbon dioxide liquid film on the surface of the wire rope 40 is irradiated by laser in the circumferential direction of the wire rope 40.

[0043] In this embodiment, the arrangement of multiple mixing nozzles 20 allows liquid carbon dioxide to uniformly cover the circumferential surface of the wire rope 40, ensuring that the entire surface of the wire rope 40 is thoroughly cleaned and treated. Laser irradiation of the circumferential surface uniformly heats the carbon dioxide liquid film, inducing cavitation and shock wave generation, thereby enhancing the comprehensiveness of the cleaning and preventing the cleaning of only localized areas while neglecting others. Furthermore, with multiple mixing nozzles 20 arranged circumferentially, the liquid carbon dioxide can simultaneously act on multiple surface areas of the wire rope, thus improving the overall efficiency of the cleaning process.

[0044] An embodiment of the present invention also includes a wire rope cleaning device using the above-described online wire rope cleaning method, comprising a cavitation-induced cleaning chamber 10, a mixing nozzle 20, a cavitation-induced laser 30, a compression pump 50, a liquid carbon dioxide storage tank 60, and a laser power supply 70; wherein, the mixing nozzle 20 and the cavitation-induced laser 30 are disposed in the cavitation-induced cleaning chamber 10, and the cavitation-induced cleaning chamber 10 has holes on both sides for the wire rope 40 to pass through; the mixing nozzle 20 includes an inlet chamber 21, a diversion chamber 22, and a mixing chamber 24 arranged sequentially inside; the inlet chamber 21 is connected to the outlet of the compression pump 50; the diversion chamber 22 is provided with a diversion baffle 23; the outlet of the mixing chamber 24 sprays carbon dioxide onto the surface of the wire rope 40 to be cleaned, so that a layer of carbon dioxide liquid film is generated on the surface of the wire rope 40; the cavitation-induced laser 30 is used to generate laser light and irradiate the carbon dioxide liquid film on the surface of the wire rope 40.

[0045] In this embodiment, liquid carbon dioxide is delivered to the mixing nozzle 20 by the compression pump 50. The liquid carbon dioxide enters the diversion chamber 22 through the liquid inlet chamber 21. Through the diversion baffle 23 and the function of heat absorption and release, part of it absorbs heat and expands, vaporizing into carbon dioxide gas to form a high-speed airflow, while the other part loses heat, cools down and solidifies into dry ice particles. Finally, the dry ice particles are mixed with the high-speed airflow in the mixing chamber 24, and the liquid carbon dioxide is sprayed onto the surface of the wire rope 40, forming a layer of carbon dioxide liquid film. This film can not only effectively cover the entire surface of the wire rope 40, but also, with the cooling effect of the liquid carbon dioxide, the laser emitted by the cavitation-induced laser 30 irradiates the carbon dioxide liquid film. The laser heats and induces the carbon dioxide to generate cavitation bubbles. When these bubbles collapse, they release powerful shock waves, which deeply clean the surface of the wire rope 40, helping to remove surface oil, rust and other contaminants, and effectively preventing wear or damage to the surface of the wire rope 40.

[0046] like Figure 2 and Figure 3 As shown, multiple mixing nozzles 20 and multiple cavitation-induced lasers 30 are arranged in the cavitation-induced cleaning chamber 10, and the multiple mixing nozzles 20 and multiple cavitation-induced lasers 30 are arranged in a one-to-one correspondence.

[0047] In this embodiment, multiple mixing nozzles 20 can cover multiple areas of the surface of the wire rope 40, ensuring that each area is covered with a carbon dioxide liquid film. Simultaneously, multiple cavitation-induced lasers 30 can correspondingly irradiate the carbon dioxide liquid film in each area, uniformly exciting cavitation bubbles, thereby providing more uniform and thorough cleaning. This avoids the problems of incomplete local cleaning and dead zones that may occur with a single mixing nozzle 20 and cavitation-induced laser 30. Furthermore, the simultaneous spraying of carbon dioxide liquid film by multiple mixing nozzles 20 and the synchronous irradiation and induction of cavitation bubbles by multiple cavitation-induced lasers 30 enable the cleaning of more surface areas within the same time frame, improving cleaning efficiency.

[0048] like Figure 5 As shown, the cavitation-induced laser 30 is equipped with a focal length adjustment screw 31 and a focusing lens 32. The focusing lens 32 has a thread at the mating position with the focal length adjustment screw 31. When the focal length adjustment screw 31 is rotated, the focusing lens 32 can move along the focal length adjustment screw 31.

[0049] In this embodiment, the focus adjustment screw 31 can precisely control the focus of the laser beam. By adjusting the position of the focusing lens 32, the size and position of the laser beam's focal point can be changed, thereby ensuring that the laser beam's focal point is precisely focused on the carbon dioxide liquid film on the surface of the steel wire rope 40 to be irradiated, enhancing the cleaning effect. Different contaminants or different parts may require different focal lengths for cleaning; by adjusting the focal length, the optimal cleaning effect can be achieved. Moreover, the size and position of the laser focal point directly affect the generation of cavitation bubbles and the effect of the shock wave. By precisely adjusting the laser focal length, laser energy can be concentrated in a specific area, inducing the generation of more cavitation bubbles, enhancing the cavitation effect, and thus improving the cleaning capability.

[0050] like Figure 2 As shown, the mixing nozzle 20 and the cavitation-induced laser 30 are both inclinedly arranged on the inner wall of the cavitation-induced cleaning chamber 10, and the jet point of the mixing nozzle 20 and the irradiation point of the corresponding cavitation-induced laser 30 are at the same position.

[0051] In this embodiment, the jet point and irradiation point of the mixing nozzle 20 and the cavitation-induced laser 30 coincide, allowing the laser energy and the ejected carbon dioxide liquid film to work synergistically at the same location. The carbon dioxide liquid film is first ejected onto the surface of the wire rope 40 through the mixing nozzle 20, and the laser irradiates these locations, inducing the generation of cavitation bubbles. A high-speed gas flow containing dry ice particles is ejected onto the surface of the wire rope. Under impact, the dry ice particles close to the surface are impacted and compressed into a liquid state, forming a carbon dioxide liquid film. The combination of this liquid film and the shock wave generated by the cavitation bubbles enhances the removal of dirt, rust, and grease from the surface of the wire rope 40.

[0052] like Figure 4 As shown, the outer wall of the mixing nozzle 20 is made of heat-insulating material. The flow divider 23 divides the flow divider 22 into an expansion chamber and a solidification chamber with different flow areas. After the liquid carbon dioxide in the liquid inlet chamber 21 flows into the flow divider 22, the liquid carbon dioxide is divided under the action of the flow divider 23. The liquid carbon dioxide entering the expansion chamber absorbs heat and expands, vaporizing into carbon dioxide gas and forming a high-speed jet flow. The liquid carbon dioxide entering the solidification chamber loses heat, cools down and solidifies into dry ice particles, and then mixes into the high-speed jet flow in the mixing chamber 24.

[0053] In this embodiment, the flow divider 23 divides the flow divider chamber 22 into an expansion chamber and a solidification chamber with different flow areas. When the compressor pump 50 delivers liquid carbon dioxide to the mixing nozzle 20, the liquid carbon dioxide in the inlet chamber 21 flows into the flow divider chamber 22. Under the action of the flow divider 23, the liquid carbon dioxide is divided. The liquid carbon dioxide entering the expansion chamber absorbs heat and expands, vaporizing into carbon dioxide gas and forming a high-speed jet stream. The liquid carbon dioxide entering the solidification chamber loses heat, cools down, and solidifies into dry ice particles. Then, it is mixed with the high-speed jet stream in the mixing chamber 24, and the liquid carbon dioxide is sprayed onto the surface of the wire rope 40, forming a layer of liquid carbon dioxide film. The outer wall of the mixing nozzle 20 is made of heat-insulating material, which can ensure the temperature stability of the jet stream and dry ice particles.

[0054] like Figure 5 As shown, the cavitation-induced laser 30 is equipped with a resonant cavity 33 and a focus adjustment motor 34. The focus adjustment screw 31 is driven to rotate by the focus adjustment motor 34 so as to adjust the laser focusing position to accommodate steel wire ropes 40 of different diameters.

[0055] In this embodiment, the cavitation-induced laser 30 is also equipped with a resonant cavity 33 and a focus adjustment motor 34. The focus adjustment motor 34 drives the focus adjustment screw 31 to rotate, changing the focus position of the laser so that the laser can accurately irradiate the surface of steel wire ropes 40 of different diameters. Different diameter steel wire ropes 40 require different laser focal lengths to ensure that the laser can effectively irradiate the carbon dioxide liquid film on the surface of the steel wire rope 40, thereby generating cavitation bubbles and meeting the cleaning needs of various steel wire ropes 40.

[0056] This application discloses an online cleaning method and apparatus for steel wire ropes. By utilizing a liquid film formed by liquid carbon dioxide on the surface of the steel wire rope 40, combined with laser-induced cavitation bubbles, it achieves efficient, non-destructive, and environmentally friendly cleaning of the steel wire rope 40 surface. The cleaning process in this application requires no equipment shutdown, improving cleaning efficiency. Simultaneously, the use of liquid carbon dioxide avoids corrosion and wear on the surface of the steel wire rope 40, ensuring its service life and safety performance. Furthermore, the solution in this application has the following advantages:

[0057] 1. The solution in this application can perform real-time comprehensive cleaning of the wire rope 40 as it is wound up and unwound. It utilizes laser-induced liquid carbon dioxide to absorb energy and generate instantaneous vaporization and expansion, which transforms into carbon dioxide bubbles and then collapses, generating shock waves in the surrounding area. The impact release causes the dirt adhering to the surface of the wire rope 40 to fall off quickly, thus cleaning the dust, mud, oil, and other contaminants from the surface of the wire rope 40 in a timely manner, reducing wire rope wear, and improving the service life of the wire rope.

[0058] 2. The solution in this application uses a carbon dioxide liquid film to be created on the surface of the steel wire rope 40. After the dry ice particles melt, liquid carbon dioxide is generated, which has a strong dissolving ability and good self-volatility for organic pollutants. It can effectively remove stains from the surface of the steel wire rope 40 and has a good cleaning effect.

[0059] 3. The solution in this application uses laser-induced liquid carbon dioxide cavitation to clean the steel wire rope 40 online. Liquid carbon dioxide cavitation induction can be completed using a low-power laser, which has high cleaning accuracy and efficiency while consuming little energy and is easy to implement.

[0060] 4. The laser-induced liquid carbon dioxide cavitation cleaning method used in this application is a wet cleaning method, which can achieve non-destructive cleaning of the surface of the wire rope 40 and reduce the loss of the life of the wire rope 40 during the cleaning process.

[0061] The above description is merely an optional embodiment of this solution and is not intended to limit the solution. Various modifications and variations can be made to this solution by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this solution should be included within the scope of protection of this solution.

[0062] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0063] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the accompanying drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as exemplary only and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0064] In the description of this solution, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the attached drawings. It is only for the convenience of describing this solution and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or component referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this solution. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0065] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0066] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this solution.

Claims

1. A method for online cleaning of steel wire ropes, characterized in that, include: Step S1: The carbon dioxide compressor pump (50) draws in liquid carbon dioxide and then delivers it to the mixing nozzle (20). The carbon dioxide is sprayed onto the surface of the wire rope (40) to be cleaned through the mixing nozzle (20), so that a layer of liquid carbon dioxide film is generated on the surface of the wire rope (40). The mixing nozzle (20) includes an inlet chamber (21), a diversion chamber (22) and a mixing chamber (24) arranged in sequence. The diversion chamber (22) is provided with a diversion baffle (23). The diversion baffle (23) divides the diversion chamber (22) into an expansion chamber and a solidification chamber with different flow areas. In step S1, when liquid carbon dioxide passes through the mixing nozzle (20), it is divided into two parts. One part absorbs heat and expands, vaporizing into carbon dioxide gas and forming a high-speed jet stream. The other part loses heat, cools down and solidifies into dry ice particles, which are mixed into the high-speed jet stream. The high-speed jet stream containing dry ice particles is sprayed onto the surface of the wire rope (40). Under the impact, the dry ice particles close to the surface of the wire rope (40) are impacted and pressured into liquid, forming a carbon dioxide liquid film. Step S2: The liquid carbon dioxide film on the surface of the wire rope (40) is irradiated by laser to induce cavitation of liquid carbon dioxide, and the shock wave generated by cavitation is used to clean the wire rope (40).

2. The online cleaning method for steel wire ropes according to claim 1, characterized in that, In step S2, the laser irradiation is focused on the position of the liquid carbon dioxide film. The liquid carbon dioxide is induced to generate cavitation bubbles by laser heating. The collapse of the bubbles generates shock waves, which in turn clean the surface of the steel wire rope (40).

3. The online cleaning method for steel wire ropes according to claim 1, characterized in that, In step S1, a plurality of the mixing nozzles (20) are arranged circumferentially on the wire rope (40); in step S2, the carbon dioxide liquid film on the surface of the wire rope (40) is laser-irradiated circumferentially on the wire rope (40).

4. A wire rope cleaning device, using the online wire rope cleaning method according to any one of claims 1 to 3, characterized in that, The wire rope cleaning device includes a cavitation-induced cleaning chamber (10), a mixed-flow nozzle (20), a cavitation-induced laser (30), a compression pump (50), a liquid carbon dioxide storage tank (60), and a laser power supply (70). The mixed-flow nozzle (20) and the cavitation-induced laser (30) are located in the cavitation-induced cleaning chamber (10). The cavitation-induced cleaning chamber (10) has holes on both sides for the wire rope (40) to pass through. The liquid inlet chamber (21) is connected to the outlet of the compression pump (50). The outlet of the mixed-flow chamber (24) sprays carbon dioxide onto the surface of the wire rope (40) to be cleaned, so that a layer of carbon dioxide liquid film is generated on the surface of the wire rope (40). The cavitation-induced laser (30) is used to generate laser light and irradiate the carbon dioxide liquid film on the surface of the wire rope (40).

5. The wire rope cleaning device according to claim 4, characterized in that, Multiple mixing nozzles (20) and multiple cavitation-induced lasers (30) are arranged in the cavitation-induced cleaning chamber (10), and the multiple mixing nozzles (20) and multiple cavitation-induced lasers (30) are arranged in a one-to-one correspondence.

6. The wire rope cleaning device according to claim 4, characterized in that, The cavitation-induced laser (30) is equipped with a focal length adjustment screw (31) and a focusing lens (32). The focusing lens (32) has a thread at the mating position with the focal length adjustment screw (31). When the focal length adjustment screw (31) is rotated, the focusing lens (32) can move along the focal length adjustment screw (31).

7. The wire rope cleaning device according to claim 5, characterized in that, The mixing nozzle (20) and the cavitation-induced laser (30) are both inclinedly arranged on the inner wall of the cavitation-induced cleaning chamber (10), and the jet point of the mixing nozzle (20) and the irradiation point of the corresponding cavitation-induced laser (30) are at the same position.

8. The wire rope cleaning device according to claim 4, characterized in that, The outer wall of the mixing nozzle (20) is made of heat insulation material. After the liquid carbon dioxide in the liquid inlet chamber (21) flows into the diversion chamber (22), the liquid carbon dioxide is diverted under the action of the diversion baffle (23). The liquid carbon dioxide entering the expansion chamber absorbs heat and expands, vaporizing into carbon dioxide gas and forming a high-speed jet stream. The liquid carbon dioxide entering the solidification chamber loses heat, cools down and solidifies into dry ice particles, and then mixes into the high-speed jet stream in the mixing chamber (24).

9. The wire rope cleaning device according to claim 6, characterized in that, The cavitation-induced laser (30) is equipped with a resonant cavity (33) and a focus adjustment motor (34). The focus adjustment screw (31) is driven to rotate by the focus adjustment motor (34) to adapt to steel wire ropes (40) of different diameters by adjusting the laser focusing position.

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