Steel wire rope slack early warning device and brick furnace tower

Abstract

The application discloses a steel wire rope slack early warning device and a furnace building tower. The steel wire rope slack early warning device comprises a base, a winch installed on the base, a drum of the winch being wound with a steel wire rope, at least part of the steel wire rope extending downward below the base, two limiting ropes arranged below the base and distributed in parallel on both sides of the steel wire rope, at least two sensors corresponding to the two limiting ropes, the sensors being configured to send a sensing signal when sensing displacement of the limiting ropes, and an alarm device electrically connected with the sensors and configured to send an alarm after receiving the sensing signal. By arranging the limiting ropes and the sensors, early warning of the winch steel wire rope slack is realized, the technical defense of the equipment is improved, the equipment failure rate is reduced, the furnace building tower equipment operation is more stable, and the structure is simple and the cost is low.

Description

Technical Field

[0001] This application belongs to the technical field of steelmaking equipment, and particularly relates to a wire rope slack warning device and a furnace tower. Background Technology

[0002] The converter lining tower is a piece of equipment used for lining steelmaking converters. During converter maintenance and repairs, workers and lining bricks need to be transported through the tower's casing. During operation, the wire ropes of the converter lining tower may become slack due to various reasons. If this slack is not detected or properly addressed, the wire rope may come out of its groove, or even break, creating a safety hazard and affecting production. Utility Model Content

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a wire rope slack warning device and a furnace tower, which realizes early warning of hoist wire rope slack, improves the technical protection of the equipment, reduces the equipment failure rate, and makes the furnace tower equipment operate more stably.

[0004] In a first aspect, this application provides a wire rope slack warning device, characterized in that it includes:

[0005] Base;

[0006] A winch is mounted on a base, and a wire rope is wound on the winch drum, with at least a portion of the wire rope extending downwards to the bottom of the base.

[0007] Two limiting ropes are located below the base, and the two limiting ropes are distributed parallel to each other on both sides of the wire rope.

[0008] At least two sensors, each corresponding to one of two limit ropes, are configured to emit a sensing signal when displacement of the limit ropes is detected.

[0009] An alarm device, wherein a sensor is electrically connected to the alarm device, and the alarm device is configured to issue an alarm upon receiving a sensing signal.

[0010] According to the wire rope slack warning device of this application, after the wire rope slacks, it will vibrate in its radial direction, thereby touching the limit ropes located on both sides. When the limit ropes move under the force of the wire rope, they can be detected by the sensor and a sensing signal is sent to the alarm device. The alarm device will issue an alarm to promptly remind the staff of the working status of the wire rope, realizing the early warning of hoisting wire rope slack, improving the technical protection of the equipment, reducing the equipment failure rate, making the furnace tower equipment operate more stably, and the structure is simple, the cost is low, and it is easy to install and maintain. It can be modified on the basis of the existing structure.

[0011] According to one embodiment of this application, the distance between the limiting rope and the wire rope in the radial direction of the wire rope is no more than 8 mm.

[0012] According to one embodiment of this application, the bottom of the base is provided with two support members distributed on both sides of the axial direction of the winch, and the two ends of the limiting rope are respectively connected to the two support members.

[0013] According to one embodiment of this application, there are four sensors, with two sensors installed on each support member, and the four sensors correspond to the ends of two limiting ropes respectively.

[0014] According to one embodiment of this application, the end of the limiting rope is connected to the support member through an elastic member, and the elastic member applies an elastic tension force to the limiting rope toward the support member.

[0015] According to one embodiment of this application, the elastic element is a spring.

[0016] According to one embodiment of this application, the support member is a channel steel, and two channel steels are arranged in parallel.

[0017] According to one embodiment of this application, the sensor includes a spring bar limit switch, the spring head of which is connected to a limit rope.

[0018] According to one embodiment of this application, the limiting rope is a steel wire.

[0019] Secondly, this application provides a furnace tower, including a wire rope slack warning device as described in any of the technical solutions in the first aspect.

[0020] The beneficial effects of the furnace tower provided under the second aspect of this application are the same as those of the wire rope slack warning device provided under the first aspect, and will not be repeated here.

[0021] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 This is a schematic diagram of the structure of the wire rope slack warning device provided in the embodiments of this application;

[0024] Figure 2 This is a schematic diagram of the signal transmission path of the spring bar limit switch and alarm device provided in the embodiments of this application.

[0025] Figure label:

[0026] 1. Wire rope slack warning device; 11. Base; 12. Winch; 121. Drum; 13. Wire rope; 14. Limiting rope; 15. Sensor; 16. Support component; 17. Elastic component. Detailed Implementation

[0027] The converter lining tower is a piece of equipment used for lining steelmaking converters during their in-service maintenance. Workers and lining bricks are transported through the lining tower's structure. Construction workers need to enter the converter body via the tower, and the lining bricks being worked on also need to be moved around within the tower. The lining tower is an offline device; it needs to be mounted on the converter opening for each in-service maintenance. For operators on-site, they are merely operating the equipment and cannot promptly check its status. For example, if an operator experiences an abnormality in the wire rope while operating the tower's lifting mechanism, their first reaction might be a malfunction of the control panel button. If the wire rope becomes slack and the operator tries to operate it again, it could cause the rope to reverse or even slip out of its groove. If the fault is not acknowledged and no one warns them, it could even lead to the wire rope breaking, potentially causing a serious accident.

[0028] Based on the above considerations, this application proposes a wire rope slack warning device and a furnace tower, which realizes the early warning of hoist wire rope slack, improves the technical protection of the equipment, reduces the equipment failure rate, and makes the furnace tower equipment operate more stably.

[0029] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0030] The following is for reference. Figure 1 This application describes a wire rope slack warning device and a furnace tower according to embodiments thereof.

[0031] Please see Figure 1 The wire rope slack warning device provided in this application embodiment includes: a base 11, a winch 12, two fiber ropes, at least two sensors 15, and an alarm device.

[0032] The base 11 serves as the basic support structure for the entire device. The base 11 can be an existing support platform on the furnace tower, or it can be a steel structure frame welded to the top of the furnace tower, for example, it can be firmly connected to the furnace tower through welding; or it can be fixed to the furnace tower by using high-strength bolts through pre-drilled installation holes on the top of the furnace tower.

[0033] A winch 12 is mounted on a base 11, and a wire rope 13 is wound on the drum 121 of the winch 12. At least a portion of the wire rope 13 extends downward to the bottom of the base 11.

[0034] The winch 12 is mounted on the base 11. The winch 12 can be an electric winch, powered by an electric motor that transmits power to the drum 121 via a reduction gear. The surface of the drum 121 has anti-slip grooves to increase friction with the wire rope 13 and prevent slippage. The winch 12 is fixed to the base 11 with anchor bolts. Bolt holes are pre-drilled on the base 11 at positions corresponding to the winch 12 base. During installation, the bolts are passed through the holes and the nuts are tightened to ensure a stable installation of the winch 12.

[0035] A wire rope 13 is wound on the drum 121 of the winch 12. At least a portion of the wire rope 13 extends downward to below the base 11. The size of the wire rope 13 is not limited; the specifications can be selected to suit the material and personnel lifting operations of the furnace tower. For example, the diameter of the wire rope 13 can be 12mm-25mm, or other sizes not less than 25mm. One end of the wire rope 13 is fixed to the drum 121, which can be done by using a pressure plate. The pressure plate is tightened with bolts to secure the end of the wire rope 13, making it firmly wound on the drum 121. The other end is connected to the furnace tower box or other load to be lifted. During normal operation, the wire rope 13 is taut. When the wire rope 13 becomes slack due to various reasons, it will vibrate radially.

[0036] Two limiting ropes 14 are located below the base 11, and the two limiting ropes 14 are distributed in parallel on both sides of the wire rope 13.

[0037] The base 11 may have a notch for the wire rope 13 to pass through. Two limiting ropes 14 are located below the base 11 and are arranged parallel to each other on both sides of the wire rope 13 passing through the notch. The limiting ropes 14 can be made of high-strength stainless steel rope, which has good wear resistance and tensile strength and can withstand the impact and friction when the wire rope 13 is slack; alternatively, they can be made of synthetic fiber materials, such as aramid fiber rope, which is lightweight and strong. The two limiting ropes 14 are arranged in parallel. It can be understood that the distance between the two limiting ropes 14 is determined according to the diameter of the wire rope 13, and the distance between the two limiting ropes 14 is greater than the diameter of the wire rope 13, so that the wire rope 13 will not accidentally contact the limiting ropes 14 during normal operation.

[0038] At least two sensors 15 correspond to two limit ropes 14 respectively, and the sensors 15 are configured to emit a sensing signal when they sense displacement of the limit ropes 14.

[0039] The sensor 15 can be of various types, such as a common inductive proximity sensor 15, which can detect the displacement of the limiting rope 14 by sensing changes in the magnetic field near the limiting rope 14; or a photoelectric sensor 15, which emits a signal by detecting changes in the blocking or reflection of light by the limiting rope 14. The sensor 15 can be directly installed at the end of the limiting rope 14 to monitor the movement of the limiting rope 14 in real time; or it can be installed on the side of the moving path of the limiting rope 14 to sense changes in its position as it passes by.

[0040] The number of sensors 15 is not specifically limited. When there are two sensors 15, each sensor 15 corresponds to one of the two limiting ropes 14. When there are more than two sensors 15, each limiting rope 14 can be equipped with two or more sensors 15, thereby improving the sensing accuracy of the corresponding limiting rope 14.

[0041] Sensor 15 is electrically connected to an alarm device, which is configured to issue an alarm upon receiving a sensing signal.

[0042] The alarm device can take various forms, such as a sound alarm or a sound-and-light alarm. Upon receiving a signal from sensor 15, it will simultaneously emit a loud sound and a bright flash to promptly attract the attention of workers in the steelmaking workshop environment. Alternatively, an alarm device with wireless communication capabilities can be selected to send alarm signals to workers' mobile devices such as mobile phones or walkie-talkies, or to the main control unit in the control room for remote alarm notification. The alarm device and sensor 15 are connected via wires or wireless signals to ensure the timeliness and stability of signal transmission.

[0043] In actual operation, during normal operation, the winch 12 raises or lowers the wire rope 13 by rotating the drum 121. The wire rope 13 remains taut and at a certain distance from the limit ropes 14 on both sides, preventing the sensor 15 from being triggered. When the wire rope 13 becomes slack due to load changes, equipment malfunctions, or other reasons, it vibrates radially under its own weight and inertia, touching the limit ropes 14 on both sides. The limit ropes 14 are displaced by the force of the wire rope 13, and the corresponding sensor 15 detects this displacement and immediately sends a sensing signal. The sensing signal is transmitted to the alarm device via cable. Upon receiving the signal, the alarm device activates an audible and visual alarm, alerting the operator to the slack in the wire rope 13 for timely intervention.

[0044] According to the wire rope 13 slack warning device provided in the embodiment of this application, after the wire rope 13 slacks, it will vibrate in its radial direction, thereby touching the limiting ropes 14 located on both sides. When the limiting ropes 14 move under the force of the wire rope 13, they can be sensed by the sensor 15 and a sensing signal is sent to the alarm device. The alarm device issues an alarm to promptly remind the staff of the working status of the wire rope 13, realizing the early warning of the slack of the hoisting wire rope 13, improving the technical protection of the equipment, reducing the equipment failure rate, making the furnace tower equipment operate more stably, and the structure is simple, the cost is low, and it is easy to install and maintain. It can be modified on the basis of the existing structure.

[0045] Please see Figure 1 According to some embodiments of this application, two steel wire ropes 13 may be wound on the drum 121. By setting two steel wire ropes 13, the load-bearing capacity and operational stability of the load can be improved.

[0046] The limiting ropes 14 can extend along the arrangement direction of the two wire ropes 13, so that the two limiting ropes 14 are located on both sides of the two wire ropes 13. Specifically, the two parallel limiting ropes 14 define a rectangular strip space, within which both wire ropes 13 are located. This allows the two limiting ropes 14 to simultaneously sense whether the two wire ropes 13 are slack, eliminating the need for individual setting for each wire rope 13, resulting in a simple structure and high utilization rate. When there are two or more wire ropes 13, if the arrangement direction of the wire ropes 13 is on the same plane, only two limiting ropes 14 are needed, greatly reducing production costs.

[0047] Please see Figure 1 According to some embodiments of this application, the distance between the limiting rope 14 and the wire rope 13 in the radial direction of the wire rope 13 may not be greater than 8mm.

[0048] By setting the spacing, it is ensured that when the wire rope 13 becomes slightly slack, it can promptly contact the limiting rope 14, thereby triggering the sensor 15 to issue an alarm signal. The specific spacing is not limited and can be 3mm, 5mm, 8mm, or other values ​​less than 8mm. For example, taking a wire rope 13 with a diameter of 8mm as an example, when the spacing between the limiting rope 14 and the wire rope 13 in the radial direction is set to 5mm, the wire rope 13 will contact the limiting rope 14 with only a small radial displacement.

[0049] By setting the radial distance between the limiting rope 14 and the wire rope 13 to no more than 8mm, the sensitivity of the wire rope 13 slack warning is improved. It can issue an alarm signal in time when the wire rope 13 is slightly slack, further reducing the risk of equipment failure and safety accidents caused by the failure to detect the slack of the wire rope 13 in time, and enhancing the reliability and safety of the entire wire rope 13 slack warning device.

[0050] Please see Figure 1 According to some embodiments of this application, the bottom of the base 11 may be provided with two support members 16 distributed on both sides of the axial direction of the winch 12, and the two ends of the limiting rope 14 are respectively connected to the two support members 16.

[0051] The support member 16 can be fixed to the bottom of the base 11 by welding or bolting, and aligned with both sides of the winch 12 axially. For example, the support member 16 can be provided with a U-shaped groove or a perforated ear plate for connecting the limiting rope 14. For example, when using a U-shaped groove, the limiting rope 14 is embedded in the groove and then fastened with a pressure plate and bolts; when using an ear plate, the end of the limiting rope 14 passes through the hole in the ear plate and is fixed by a rope clamp.

[0052] This design ensures that both ends of the limiting rope 14 are securely fixed, reliably transmitting displacement to the sensor 15 when the steel wire rope 13 slackens and touches it. During operation, the limiting rope 14 is fixed to the support 16. The slackening and shaking of the steel wire rope 13 causes the limiting rope 14 to move, triggering the alarm and ensuring the effective implementation of the early warning function. This structure enhances the stability of the limiting rope 14 installation, reduces monitoring errors caused by loosening, and improves the overall reliability of the device.

[0053] Please see Figure 1 According to some embodiments of this application, there may be four sensors 15, with two sensors 15 installed on each support member 16, and the four sensors 15 may correspond to the ends of the two limiting ropes 14 respectively.

[0054] The support member 16 provides a mounting base for the sensors 15, which are mounted on the support member 16 to monitor the displacement of the limiting ropes 14. Four sensors 15 correspond to the ends of two limiting ropes 14, respectively. That is, each limiting rope 14 has one sensor 15 at each end for monitoring, allowing for more comprehensive and accurate detection of the limiting rope 14's displacement. The two ends of the limiting ropes 14 are connected to the support member 16. When the wire rope 13 slacks and touches the limiting rope 14, the displacement of the limiting rope 14 can be detected promptly by the corresponding sensor 15. This improves the accuracy and reliability of monitoring the slack of the wire rope 13. Even if displacement occurs at one end of the limiting rope 14, it can be detected in time, reducing the risk of missed detection and further ensuring the safe operation of the furnace tower equipment.

[0055] Please see Figure 1 According to some embodiments of this application, the end of the limiting rope 14 can be connected to the support member 16 through the elastic member 17, and the elastic member 17 can apply an elastic tension to the limiting rope 14 toward the support member 16.

[0056] The function of the elastic element 17 is to provide elastic tension to the limiting rope 14 towards the support member 16, ensuring that the limiting rope 14 is in a taut state under normal conditions. This ensures that the limiting rope 14 can accurately sense the movement of the wire rope 13, and can return to its original position after being displaced by the wire rope 13. The elastic element 17 can be a rubber elastomer, which has good flexibility and cushioning performance.

[0057] The end of the limiting rope 14 is connected to one end of the elastic element 17, and the other end of the elastic element 17 is connected to the support element 16. If a rubber elastomer is used, the end of the limiting rope 14 can be embedded into the reserved hole of the rubber elastomer and then firmly bonded with glue. The other end of the rubber elastomer is fixed to the support element 16 by a slot or bolt.

[0058] Under normal operating conditions, the elastic element 17 applies an elastic tension to the limiting rope 14 towards the support element 16, keeping the limiting rope 14 taut. When the wire rope 13 slackens and touches the limiting rope 14, the limiting rope 14 experiences a force that overcomes the tension of the elastic element 17, causing displacement. The sensor 15 corresponding to the limiting rope 14 detects this displacement change and sends a signal. When the wire rope 13 no longer touches the limiting rope 14, the elastic tension of the elastic element 17 returns the limiting rope 14 to its original position, awaiting the next monitoring.

[0059] By setting an elastic element 17 at the end of the limiting rope 14, the tension of the limiting rope 14 under normal conditions is ensured, which improves the sensitivity of monitoring the slack of the wire rope 13. On the other hand, after the wire rope 13 touches the wire rope, the limiting rope 14 can automatically return to its original position under the action of the elastic element 17, which avoids the limiting rope 14 from being in a state of displacement for a long time and affecting the subsequent monitoring effect, thus extending the service life of the limiting rope 14 and the entire early warning device, and further improving the reliability and stability of the device.

[0060] According to some embodiments of this application, the elastic element 17 can be a spring.

[0061] The spring can be made of carbon steel or stainless steel, offering good elasticity and corrosion resistance. For example, a carbon steel tension spring provides sufficient elastic tension at a relatively low cost; for harsher working environments, a stainless steel tension spring can be used to prevent rust from affecting its elasticity. Additionally, the end of the limiting rope 14 can be connected to one end of the spring via a hook, and the other end of the spring is fixed to the support member 16 by bolts or welding.

[0062] Using a spring as the elastic element 17 results in a simple structure, low cost, and stable elastic performance, reliably providing elastic tension to the limiting rope 14. Simultaneously, the spring's stretching and contraction properties allow the limiting rope 14 to quickly return to its original position after being touched by the steel wire rope 13, ensuring the continuous and effective operation of the warning device and further improving its stability and reliability.

[0063] According to some embodiments of this application, the support member 16 can be a channel steel, with two channel steels arranged in parallel.

[0064] Channel steel is used as the support component 16. Channel steel has good bending resistance and structural strength, providing stable support for the limiting rope 14 and related components. The end of the limiting rope 14 is connected to the channel steel via an elastic element 17 (such as a spring), and the sensor 15 is also mounted on the channel steel. The channel steel provides the mounting foundation and support for the limiting rope 14 and the sensor 15, ensuring their normal operation.

[0065] Under normal operating conditions, the parallel channel steels stably support the limiting rope 14 and the sensor 15. When the wire rope 13 slacks and touches the limiting rope 14, the displacement of the limiting rope 14 is transmitted to the channel steel through the elastic element 17. However, due to the high strength and stability of the channel steel, the entire structure remains undeformed and does not loosen. Simultaneously, the sensor 15, installed on the channel steel, accurately detects the displacement change of the limiting rope 14 and sends a signal. This makes the entire wire rope slack warning device more robust and durable, reduces the probability of malfunctions caused by problems with the support element 16, and further improves the reliability and service life of the device.

[0066] Please see Figure 1 and Figure 2 According to some embodiments of this application, the sensor 15 may include a spring bar limit switch, the spring head of which is connected to the limit rope 14.

[0067] The spring bar limit switch, acting as sensor 15, has a core structure of a retractable spring bar. The spring head of the spring bar has good flexibility and fixing performance, and is used to connect with the limit rope 14. In actual connection, the spring head can be facing upwards, and high-strength nylon cable ties or metal clamps can be used to tightly bind the spring head to the limit rope 14, ensuring that the connection between the two is firm and does not affect the extension and retraction of the spring bar.

[0068] The spring bar limit switch is equipped with a limit signal cable. One end of the cable is connected to the internal sensing circuit of the spring bar limit switch, and the other end can be connected to the digital input module in the PLC cabinet of the local control box. The digital input module can accurately identify the changes in electrical signals triggered by the extension and retraction of the spring bar and convert the mechanical displacement signal into a digital signal.

[0069] In terms of signal transmission, the signals received by the PLC can be transmitted via an industrial wireless 5G network. This network features high transmission speed and strong stability, enabling rapid and stable transmission of signals to the on-site main control computer screen, allowing operators to monitor equipment status in real time. Simultaneously, another signal is directly transmitted to the alarm device. Once the limit rope 14 shifts due to the slack of the wire rope 13, it triggers the spring bar of the limit switch, immediately activating the limit signal. At this point, both signals transmit alarm information to the main control room computer screen and the on-site audible and visual alarm (alarm device), respectively. The on-site audible and visual alarm will emit a bright flashing light and a high-decibel voice alarm, and the main control room computer screen will also display a prominent alarm prompt and record the alarm information. Production and construction personnel can immediately detect abnormalities through the alarm information and quickly notify maintenance personnel to inspect the equipment, thereby effectively reducing potential equipment hazards and improving stable production operation.

[0070] This design, which applies a spring bar limit switch to a wire rope slack warning device, utilizes the sensitive mechanical sensing characteristics of the spring bar limit switch and combines it with modern communication technology to achieve accurate and timely warning functions. At the same time, it ensures the reliability and stability of signal transmission, effectively improving the practicality and safety of the entire device, and also reduces the cost of components.

[0071] According to some embodiments of this application, the limiting rope 14 can be a steel wire.

[0072] Steel wire is usually made of high carbon steel and is produced through special drawing and heat treatment processes. It has extremely high strength and good toughness, and can withstand the large impact and friction generated when the steel wire rope is slack. It is not easy to break or wear.

[0073] When the steel wire is used as the limiting rope 14, the diameter of the steel wire can be selected according to the actual working conditions. For example, the diameter of the steel wire can be between 2mm and 5mm. The smaller diameter steel wire (such as 2mm) has better flexibility and can more sensitively generate displacement when touched by the steel wire rope 13, triggering the sensor 15; the larger diameter steel wire (such as 5mm) has stronger tensile strength and is suitable for occasions with higher strength requirements.

[0074] Both ends of the steel wire can be connected to the support member 16 using a dedicated wire rope clamp 13 or a wedge connector. When connecting with the wire rope clamp 13, one end of the steel wire needs to be wrapped around the support member 16 and then folded back, and clamped with multiple wire rope clamps 13 to ensure a firm connection and prevent the steel wire from falling off the support member 16. For the wedge connector connection, one end of the steel wire is inserted into the hole of the wedge connector. Utilizing the self-locking principle of the wedge structure, the steel wire becomes tighter and tighter under stress.

[0075] Using steel wire as the limiting rope 14 fully utilizes the high strength and high toughness of steel wire, enabling the limiting rope 14 to work stably in harsh industrial environments. This effectively reduces the failure of the warning device due to damage to the limiting rope 14, improves the reliability and service life of the entire steel wire rope 13 slack warning device, and at the same time, the cost of steel wire is relatively low, resulting in good economic efficiency.

[0076] This application also provides a furnace tower, which is used in scenarios such as converter maintenance.

[0077] The furnace tower includes a slack warning device for the wire rope 13 as described in any of the above technical solutions.

[0078] It should be noted that, since the furnace tower provided in this application includes a wire rope 13 slack warning device as described in any of the above technical solutions, it has the technical features and beneficial effects of a wire rope 13 slack warning device as described in any of the above technical solutions, which will not be repeated here.

[0079] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0080] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0081] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0082] In the description of this application, "multiple" means two or more.

[0083] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them.

[0084] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0085] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0086] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A wire rope slack warning device, characterized in that, include: Base; A winch is mounted on the base, and a wire rope is wound on the drum of the winch, at least a portion of which extends downward to below the base. Two limiting ropes are provided below the base, and the two limiting ropes are distributed parallel to each other on both sides of the wire rope; At least two sensors, each corresponding to one of the two limiting ropes, are configured to emit a sensing signal when displacement of the limiting ropes is detected. An alarm device, wherein the sensor is electrically connected to the alarm device, and the alarm device is configured to issue an alarm upon receiving the sensing signal.

2. The wire rope slack warning device according to claim 1, characterized in that, In the radial direction of the wire rope, the distance between the limiting rope and the wire rope is no greater than 8mm.

3. The wire rope slack warning device according to claim 1, characterized in that, The base has two support members distributed on both sides of the axial direction of the winch at its bottom, and the two ends of the limiting rope are respectively connected to the two support members.

4. The wire rope slack warning device according to claim 3, characterized in that, The sensor is provided in four parts, with two sensors installed on each of the support members, and the four sensors correspond to the ends of the two limiting ropes respectively.

5. The wire rope slack warning device according to claim 3, characterized in that, The end of the limiting rope is connected to the support member through an elastic element, and the elastic element applies an elastic tension force to the limiting rope toward the support member.

6. The wire rope slack warning device according to claim 5, characterized in that, The elastic element is a spring.

7. The wire rope slack warning device according to any one of claims 3-6, characterized in that, The support member is a channel steel, and two channel steels are arranged in parallel.

8. The wire rope slack warning device according to any one of claims 1-6, characterized in that, The sensor includes a spring bar limit switch, and the spring head of the spring bar limit switch is connected to the limit rope.

9. The wire rope slack warning device according to any one of claims 1-6, characterized in that, The limiting rope is made of steel wire.

10. A furnace tower, characterized in that, Includes the wire rope slack warning device as described in any one of claims 1-9.

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