Heavy steel wire rope anchoring connector casting alloy casting and casting integrated recovery system and method thereof

Through the system combining intermediate frequency furnace heating and circulating water cooling, the problem of low recycling efficiency of cast alloys with heavy-duty wire rope anchor joints is solved, and safe and efficient alloy recovery and resource utilization are achieved.

CN120488729APending Publication Date: 2025-08-15BAOSTEEL RESOURCES HLDG (SHANGHAI) CO LTD
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Patent Information

Application Number
CN202510721321.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-30
Publication Date
2025-08-15

AI Technical Summary

Technical Problem

The cast alloy recovery efficiency of heavy-duty wire rope anchor joints in the prior art is low, and there are safety hazards and waste of resources, making it difficult to effectively recover precious metal alloys in the anchor joints.

Method used

The system consisting of an intermediate frequency furnace device, a recycling device, a lifting device, a circulating water cooling device and an electrical control device is adopted to heat the cast alloy in the anchor joint through the induction coil, so that it melts and drips into the casting mold. The alloy in the mold is insulated with the electric heating device, and the circulating water cooling device is used to cool it down. The lifting device avoids manual contact with high-temperature workpieces.

Benefits of technology

It realizes efficient and safe recycling of cast alloys, reduces scalding risks and resource waste, improves recycling efficiency, and ensures the quality and safety of alloy blanks.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a heavy steel wire rope anchoring connector casting alloy casting integrated recovery system and method. The system comprises an intermediate frequency furnace device, a recovery device, a hoisting device, a circulating water cooling device and an electric control device. A vertically-through furnace body is adopted, eddy current is generated in a steel wire rope anchoring connector through an induction coil, so that heat is generated to heat the anchoring connector of an iron piece, when the heating temperature exceeds 230 DEG C, casting alloy in the anchoring connector is rapidly melted, and flowing liquid is formed and directly drips into a casting mold located on the lower portion; and finally cooling and demolding to realize recovery. The mold is further provided with an electric heating device, the casting alloy dripped into the casting mold is heated and subjected to heat preservation, so that the casting alloy is kept in a liquid flowing state, a tightly-combined whole is formed in the cooling process, internal stress concentration is reduced, and the risk that the mold is damaged during demolding is reduced.
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Description

Technical Field

[0001] The invention relates to a recycling technology for a steel wire rope anchor joint, and in particular to a heavy steel wire rope anchor joint cast alloy integrated casting recycling system and method. Background Art

[0002] Heavy-duty wire rope anchor joints are often used to quickly connect ship unloader wire ropes and grab bucket opening and closing wire rope ends. They are also commonly known as pear-shaped rope joints. Because the pear-shaped rope joint is the most susceptible to damage, when a wire rope reaches scrap standards, the damaged portion of the wire rope at the pear-shaped end is cut off and combined with the remaining good wire rope section to recast the pear-shaped rope joint. Specifically, the wire rope section is inserted into the replaced pear-shaped rope joint, and then liquid casting alloy (such as a tin-based alloy) is poured into the pear-shaped rope joint. After cooling, the wire rope and the pear-shaped rope joint are connected and fixed.

[0003] The current common practice for broken anchor joints is to prop them up in a heat-resistant metal container using a simple bracket. Oxyacetylene is then used to heat the anchor joint from all sides to melt the cast alloy (melting point above 230°C). This heating state is maintained until the alloy is completely melted. This alloy is often discarded as metal waste. This is because, although this alloy is a precious metal alloy with a high market value and large usage, currently available literature primarily addresses casting techniques for this alloy, with no documentation of related recovery techniques. Therefore, if recovery is required, the only option is to manually scoop the liquid alloy from the container with a spoon and then pour it into the corresponding mold. However, this process is prone to tipping over, and the high-temperature alloy liquid can easily splash out, causing burns to the operator. Furthermore, this method suffers from low recovery efficiency and significant waste, with dripping of the liquid alloy being common, resulting in a significant waste of resources. Furthermore, since the broken wire rope, pear-shaped rope loop, and the cast alloy are housed in the same high-temperature furnace, it is difficult to completely separate and extract the alloy. Therefore, in actual operation, the cast alloy is usually not recovered and is disposed of as waste. Summary of the Invention

[0004] In order to solve the above problems in the prior art, the present invention provides a heavy-duty wire rope anchor joint cast alloy integrated casting recovery system and method, which can efficiently recover the cast alloy in the wire rope anchor joint.

[0005] In one aspect, a heavy-duty wire rope anchor joint casting alloy integrated casting recovery system comprises:

[0006] The medium frequency furnace device includes a medium frequency induction furnace, a medium frequency furnace capacitor box, and a medium frequency furnace power supply box. The medium frequency induction furnace includes a furnace body and an induction coil for medium frequency heat melting. The furnace body is a hollow structure that runs through from top to bottom, with a lifting port at the top and an open port at the bottom. The induction coil is made of a hollow copper tube and is spirally arranged inside the furnace body.

[0007] The recovery device includes a casting mold, which is arranged below the furnace body and is used to receive the liquid casting alloy that is melted and dripped by the medium frequency heat melting;

[0008] The lifting device is used to lift the wire rope anchor joint to be recovered from the lifting port and suspend it in the furnace body for hot melting, and lift the wire rope anchor joint recovered by hot melting out of the furnace body;

[0009] The circulating water cooling device is connected to the induction coil of the intermediate frequency furnace device, the power supply box of the intermediate frequency furnace, and the capacitor box of the intermediate frequency furnace through the circulating water pipe to provide cooling;

[0010] The electric control device is used to supply power to and control the above devices.

[0011] The furnace body is designed as a three-layer structure, the outer layer is a heat insulation board, the middle layer is the induction coil, and the inner layer is fireproof mud.

[0012] An observation window that can be opened and closed is also provided at the lower portion of the outer wall of the furnace body.

[0013] The recovery device also includes a pull-out base, the casting mold is arranged on the pull-out base, and the pull-out base is provided with an electric heating device for heating and keeping the casting alloy in the casting mold warm.

[0014] The lifting device includes a lifting arm, a sling provided at the front end of the lifting arm, and a lifting and rotating mechanism connected to the rear end of the lifting arm. The wire rope anchor joint to be recovered is connected through the sling, and is lifted and rotated to the top of the lifting port of the furnace body through the lifting and rotating mechanism, and then lowered and lifted into the furnace body; after the hot melt is recovered, it is lifted out of the furnace body in the opposite direction by the lifting and rotating mechanism.

[0015] The lifting device also includes a pair of limit switches for monitoring the lifting height of the boom and a pair of limit switches for monitoring the rotation angle of the boom.

[0016] The circulating water cooling device includes a circulating water tank, a circulating water pump, and a water channel splitter. The circulating water tank is connected to the circulating water pump and the water channel splitter in sequence through a circulating water pipe, and then connected to the induction coil of the intermediate frequency furnace device, the intermediate frequency furnace capacitor box, and the intermediate frequency furnace power supply box through the water channel splitter by the circulating water pipe, thereby forming a water cooling cycle.

[0017] In another aspect, a recycling method of a heavy-duty steel wire rope anchor joint casting alloy integrated recycling system comprises the following steps:

[0018] A. Install the fixing clip on the wire rope of the wire rope anchor joint to be recovered;

[0019] B. Use the electronic control device to control the lifting device's boom to rotate above the wire rope anchor joint to be recovered, and connect it to the fixing clamp through the spreader;

[0020] C. The lifting arm of the lifting device is controlled by the electronic control device to lift and rotate to the top of the lifting port of the furnace body, and then lowered and lifted into the furnace body;

[0021] D. The induction coil of the intermediate frequency furnace device is energized by the electronic control device to perform intermediate frequency heating, so that the casting alloy in the wire rope anchor joint melts and drips into the casting mold of the recovery device. At the same time, the circulating water cooling device is controlled by the electronic control device to circulate water cooling to the induction coil, the intermediate frequency furnace power supply box, and the intermediate frequency furnace capacitor box respectively;

[0022] E. After the casting alloy has been melted, the casting mold is taken out for cooling and demoulding to obtain the recovered casting alloy blank, and the recovered wire rope anchor joint is lifted out of the furnace body by the lifting device.

[0023] In step D, the electric heating device is simultaneously turned on by the electric control device to heat and keep the casting alloy in the casting mold. The temperature is controlled to be above 200° C. to keep it in a liquid flow state.

[0024] In step D, the medium frequency heating adopts segmented control. The medium frequency current in the heating stage is controlled at 20-25A, the time is 4-6 minutes, and the target temperature is controlled to rise rapidly from 0°C to above 450°C; the medium frequency current in the melting stage is controlled at 15-20A, the time is 5-7 minutes, and the target temperature is controlled at 450-550°C; the medium frequency current in the insulation stage is controlled at 10-15A, the time is 4-5 minutes.

[0025] The heavy-duty steel wire rope anchor joint casting alloy integrated recovery system and method of the present invention have the following advantages:

[0026] 1. A furnace body that runs through from top to bottom is used. An induction coil is used to generate eddy currents inside the wire rope anchor joint, thereby generating heat to heat the anchor joint of the iron part. When the heating temperature exceeds 230°C, the casting alloy in the anchor joint melts rapidly, forming a flowing liquid that directly drips into the casting mold located below, and finally cools and demolds for recovery.

[0027] 2. The furnace body is designed with a composite insulation structure, with an outer layer of insulation board, a middle layer of spiral induction coils made of hollow copper tubes, and an inner layer of fireproof mud. During operation, the outer surface temperature of the insulation board does not exceed 30°C, eliminating burns and other safety threats to personnel. The lack of radiant heat protects other equipment, and the inner layer of fireproof mud also provides insulation and prevents the coils from being bumped.

[0028] 3. The furnace body has an observation window, which can be used to check the melting state and melting amount of the alloy at any time.

[0029] 4. The mold also has an electric heating device to heat and keep the casting alloy dripped into the casting mold warm, so that it remains in a liquid flow state, so that it can form a tightly bonded whole during the cooling process, reduce internal stress concentration, and reduce the risk of mold damage during demoulding.

[0030] 5. The furnace body is cooled by a circulating water cooling device, which further ensures the safe protection of the furnace body surface temperature. At the same time, it also provides effective cooling for the capacitor box and power box of the fast hot-melting medium-frequency furnace.

[0031] 6. The lifting device can automatically lift the anchor joint into the furnace body, which can avoid scalding accidents caused by manual contact with high-temperature workpieces and safety hazards caused by splashing liquid alloy. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of the recovery system of the present invention (wire rope anchor joint hoisted state);

[0033] Figure 2 Schematic diagram of the structure of the recovery system of the present invention (steel wire rope anchor joint hoisted in state);

[0034] Figure 3 is a schematic top view of the recovery system of the present invention;

[0035] Figure 4 It is a structural schematic diagram of the furnace body and recovery device of the present invention;

[0036] Figure 5 This is a schematic diagram of the structure of the pull-out base of the present invention when it is pulled out horizontally;

[0037] Figure 6 、 Figure 7 They are schematic structural diagrams of the lifting device of the present invention at the low and high positions;

[0038] Figure 8 、 Figure 9 They are respectively schematic diagrams of the operation of the high and low limit switches of the lifting device of the present invention;

[0039] Figure 10 、 Figure 11 They are respectively top views of the lifting device of the present invention when rotating out, rotating in, and the corresponding angle limit switch;

[0040] Figure 12 It is a connection principle diagram of the circulating cooling device of the present invention;

[0041] Figure 13is a top view of the recovery system of the present invention in working condition;

[0042] Figure 14 It is a flow chart of the recovery method of the present invention. DETAILED DESCRIPTION

[0043] The following is a further description of a heavy-duty steel wire rope anchor joint casting alloy integrated recovery system of the present invention. Figure 1-3 As shown, the heavy-duty steel wire rope anchor joint casting alloy integrated casting recovery system of the present invention includes a medium frequency furnace device 1, a recovery device 2, a lifting device 3, a circulating water cooling device 4 and an electronic control device 5. Among them:

[0044] Please combine Figure 4-5 As shown, the medium frequency furnace device 1 includes a medium frequency induction furnace, a medium frequency furnace capacitor box 12, and a medium frequency furnace power supply box 13. The medium frequency induction furnace includes a furnace body 11 and an induction coil 14 for medium frequency heat melting. The furnace body 11 is a hollow structure that runs through from top to bottom, with a hoisting port 15 at the upper end and an open port at the lower end. The induction coil 14 is made of a hollow copper tube and is arranged in a spiral shape inside the furnace body 11. In addition, the furnace body 11 is designed as a three-layer composite insulation structure, namely, the outer layer is a non-metallic insulation board 16, the middle layer is the induction coil 14, and the inner layer is fireproof mud 17. With this structure, when working, the outer surface temperature of the insulation board 16 is no more than 30°C, there is no threat to personnel safety such as burns during operation, and there is no radiant heat to protect other devices of the system. In addition, the fireproof mud 17 can also isolate the high temperature generated by the wire rope anchor joint 100 and prevent the anchor joint 100 from bumping into the induction coil 14 when hoisting in and out. An observation window 18 that can be opened and closed is provided at the lower portion of the outer wall of the furnace body 11 , through which the melting state and melting amount of the cast alloy in the furnace can be checked.

[0045] The bottom of the furnace body 11 also has a bracket 19. The recovery device 2 includes a casting mold 21 located in the bracket 19 below the furnace body 11 to receive the liquid casting alloy that is melted and dripped by the medium frequency heat. The casting mold 21 is designed to be rectangular or cylindrical, etc., and a partition can also be provided inside so that alloy blanks of required specifications can be recovered. The recovery device 2 also includes a pull-out base 22 located in the bracket 19. The casting mold 21 is provided on the pull-out base 22 to facilitate pulling out the mold 21. The pull-out base 22 also has an electric heating device 23 (arranged in a heating resistance wire or other manner) to heat and keep the casting alloy in the casting mold 21 warm so that it forms a tightly combined whole during the cooling process, reduces internal stress concentration, and reduces the risk of damage to the mold 21 during demoulding. In addition, to prevent the liquid alloy from dripping and splashing onto the heating resistance wire of the electric heating device 23, a heat-conducting isolation cover plate can also be provided between the electric heating device 23 and the casting mold 21.

[0046] Please combine Figure 6-11 As shown, the lifting device 3 includes a boom 31, a sling provided at the front end of the boom 31, and a lifting and rotating mechanism connected to the rear end of the boom 31. The wire rope anchor joint 100 to be recovered is connected via the sling, and is lifted and rotated to the top of the lifting port 15 of the furnace body 11 by the lifting and rotating mechanism, and is lowered and hoisted into the furnace body 11 and suspended in the air for hot melting. After hot melting and recovery, the anchor joint 100 is lifted out of the furnace body 11 by the lifting and rotating mechanism in the reverse direction. The lifting and rotating mechanism 32 can be controlled by a mechanical motor (such as a mechanical arm, etc.) or a hydraulic control structure to drive the boom 31 to achieve the lifting height and the horizontal rotation angle in a clockwise or counterclockwise direction. In addition, if hydraulic lifting is adopted, a guide rod 33 can also be provided on one side to play a guiding role during lifting. The lifting device can replace manual handling (a single anchor joint weighs more than 40 kilograms), and avoid contact with high-temperature workpieces to cause burns and liquid alloy splashing to cause safety hazards;

[0047] The lifting device 3 also includes a pair of limit switches 34a for monitoring the lifting height of the boom 31, which can be installed on a support rod 35 on one side of the lifting and rotating mechanism 32, and a pair of limit switches 34b for monitoring the rotation angle of the boom 31, which are used to monitor the position and angle of the boom 31 in real time. When the boom 31 reaches the preset safety boundary, the limit switch sends a signal to the control device to perform a forced stop action to prevent overtravel. The hoist includes a hook 36 and a fixing clamp 37 fixed on the wire rope of the wire rope anchor joint 100 to be recovered. The anchor joint 100 can be lifted by hooking the fixing clamp 37 with the hook 36. Since the wire ropes cut off from the wire rope anchor joint 100 are of different lengths, the height of the fixing clamp 37 after installation also has deviations. A butterfly-shaped hand-tightening bolt 38 is connected to the upper end of the hook 36 and screwed into the front end of the boom 31. When the boom 31 rotates and descends above the anchor joint 100 to be recovered, the height of the hook 36 can be fine-tuned using the butterfly-shaped hand-tightening bolt 38 to accommodate the lifting of fixing clamps 37 of varying heights. The hoist can also rotate 360 degrees, adjusting the angular position of the anchor joint 100 after it is hoisted into the furnace body 11.

[0048] Please combine Figure 12As shown, when the intermediate frequency furnace device 1 is in working state, it will generate a large amount of heat energy (up to 500° at the highest), and this continuously generated heat energy must be alleviated or suppressed. Therefore, the circulating water cooling device 4 includes a circulating water tank 41, a circulating water pump 42, and a water channel splitter 43. The circulating water tank 41 is connected to the circulating water pump 42 and the water channel splitter 43 in sequence through a circulating water pipe, and then divided into three paths through the water channel splitter 43. The circulating water pipes are respectively connected to the induction coil 14 of the intermediate frequency furnace device 1, the intermediate frequency furnace power supply box 13 and the intermediate frequency furnace capacitor box 12, and then return to the circulating water tank 41, thereby forming a water cooling cycle. When the cooling water passes through the copper tube of the spiral induction coil 14, it can take away the temperature inside the furnace, effectively reducing the impact of the high heat emitted by the anchor joint 100 on the outer shell of the furnace body 11 (the induction coil 14 itself does not generate heat), and further ensuring that the surface temperature of its heat insulation board 16 does not exceed 30°, thereby playing a safety protection effect. The power supply box 13 and the capacitor box 12 of the intermediate frequency furnace are equipped with cooling water circuits. The cooling water circulates in and out to remove heat and ensure the normal operation of the equipment. After cooling the equipment, the hot water flows back to the water tank through the pipe. Due to the large volume of the water tank, the water temperature in the water tank can be reduced by natural cooling after the recovery process is completed. It can be recycled and reused later, so there is no need for a radiator to cool the hot water.

[0049] In addition, a water pressure sensor 44 is provided on the water channel divider 43 to monitor the water pressure in the main channel in real time and trigger an alarm when the pressure falls below the safety threshold. A water temperature sensor 45 is also provided on the circulating water tank 41 to monitor the water outlet temperature of the water tank in real time and trigger an early warning when the water temperature exceeds the set value. A water level sensor 46 is also provided in the circulating water tank 41, which can be a float-type sensor to monitor the water level in the water tank in real time. When the water level is low, the water replenishment valve is automatically activated and the water replenishment is stopped when the water level is high to avoid overflow. In the figure, A is the water inlet, B is the water outlet, 47 is the water tank inlet valve, 48 is the high water level liquid flow port, and 49 is the drain port.

[0050] The electronic control device 5 includes an electronic control box, which is provided with a display screen. The display screen can be a touch screen or can be additionally configured with control buttons for setting and controlling the opening and power size of the intermediate frequency furnace power supply box 13 of the intermediate frequency furnace device 1, the start-up of the motor or hydraulic station of the lifting device 3, and the start-up of the circulating water pump 42 of the circulating water cooling device 4.

[0051] In addition, the recycling system can also include a stainless steel box 6, in which the above-mentioned devices are arranged. The front and back of the box 6 are designed to have openable doors 61, handles 62 are provided on the sides, and universal wheels 63 with brakes are provided at the bottom to facilitate overall movement.

[0052] Please combine Figure 13-14As shown, the recycling method of the heavy-duty steel wire rope anchor joint casting alloy integrated recycling system of the present invention specifically includes the following steps:

[0053] A. Place the wire rope anchoring joint 100 to be recovered on the trolley 200 or the platform in advance, then install the fixing clamp 37 on the wire rope of the wire rope anchoring joint 100 to be recovered, and then push the trolley 200 to the front of the recovery system.

[0054] B. The electric control device 5 is used to control the arm 31 of the lifting device 3 to rotate out to above the wire rope anchor joint 100 to be recovered, and connect it to the fixing clamp 37 through the lifting device.

[0055] C. The electronic control device 5 controls the arm 31 of the lifting device 3 to be lifted and rotated to above the lifting opening 15 of the furnace body 11 , and then lowered and lifted into the furnace body 11 , so that the anchor joint 100 is suspended upside down in the furnace body 11 .

[0056] D. The induction coil 14 of the medium frequency furnace device 1 is energized by the electronic control device 5 to perform medium frequency heating, so that the casting alloy in the wire rope anchor joint 100 melts and drips into the casting mold 21 of the recovery device 2. The principle of hot melting is:

[0057] When the emitted medium frequency current flows in the induction coil 14, a changing magnetic field is generated. The magnetic field has a high density and can penetrate and cut the anchor joint 100 suspended in the induction coil 14. When the changing magnetic field passes through the anchor joint 100 which is an iron part, an induced electromotive force is generated inside it. Since the anchor joint 100 itself forms a closed loop, an induced current, i.e., eddy current, is generated inside the anchor joint 100. When the eddy current flows inside the anchor joint 100, heat is generated due to the resistance of the iron part of the anchor joint 100 itself. This heat is the main source of the alloy heated by the medium frequency furnace. The heat generated by the eddy current is used to heat the pear-shaped head. When the temperature is gradually increased to more than 230°C, the casting alloy (such as tin-based alloy, etc.) inside the anchor joint 100 begins to melt, and the alloy melted into liquid state drips down into the casting mold 21 below. At the same time, the circulating water cooling device 4 is controlled by the electronic control device 5 to perform circulating water cooling on the induction coil 14, the intermediate frequency furnace power supply box 13, and the intermediate frequency furnace capacitor box 12 respectively.

[0058] Through repeated experiments, it was found that in step D, the medium frequency heating adopts segmented heating control, including a heating stage, a melting stage, and a heat preservation stage. The medium frequency current in the heating stage is regulated at 20-25A for 4-6 minutes, and the target temperature is quickly raised from 0°C to above 450°C; the medium frequency current in the melting stage is regulated at 15-20A for 5-7 minutes, and the target temperature is controlled at 450-550°C; the medium frequency current in the heat preservation stage is regulated at 10-15A for 4-5 minutes. Such operation has high recovery efficiency, and the casting alloy melts and drips evenly, with good effect, and does not produce semi-liquid and semi-solid phenomena (solid blocks falling will cause splashing, and the quality of the ingot cannot be guaranteed), while reducing energy consumption.

[0059] In addition, the electric heating device 23 is simultaneously turned on by the electronic control device 5 to heat and keep the casting alloy in the casting mold 21, and the temperature is controlled at above 200°C to keep it in a liquid flow state. In this way, when cooling and solidifying, the cooling rate is relatively uniform, the mechanical properties of the metal, such as strength and toughness, are relatively consistent in all parts, and the performance stability is high. If heating and heat preservation are not performed, the alloy that is first melted and dripped has a higher hardness due to the faster cooling rate, and the subsequent liquid metal that is dripped in may have a relatively low hardness after solidification; at the same time, the subsequent liquid alloy may not be tightly bonded with the solidified part, which is prone to defects such as poor bonding, inclusions, and gaps, resulting in poor performance.

[0060] E. After the cast alloy has melted, the casting mold 21 is removed and cooled to remove the mold to obtain the recovered cast alloy blank. The recovered wire rope anchor joint 100 is then lifted out of the furnace 11 using the lifting device 3, rotated out, and hoisted onto the original position of the trolley 200. The next anchor joint 100 is then recovered. Cooling is typically performed naturally, but air cooling or other methods may also be used.

[0061] In summary, the recycling system of the present invention has been proven through trial production that the average recycling time of a wire rope anchor joint 100 is only about 10 minutes, and the recovery rate is above 85% (compared with the original alloy casting amount). Taking the island Ma Moushan Port as an example, a total of 96 wire ropes were replaced in 2024, for which the production of anchor joints was about 500. The annual purchase volume of alloy for casting was as high as more than 4 tons. The market price of the alloy was 220,000 yuan / ton, and the cumulative amount was more than 480,000 yuan. If the present invention is used for recycling, the cost can be saved by more than 400,000 yuan a year.

[0062] However, those skilled in the art should recognize that the above embodiments are merely intended to illustrate the present invention and are not intended to limit the present invention. As long as they are within the spirit of the present invention, any changes or modifications to the above embodiments will fall within the scope of the claims of the present invention.

Claims

1. A heavy-duty wire rope anchor joint casting alloy integrated casting recovery system, characterized in that: include: The medium frequency furnace device includes a medium frequency induction furnace, a medium frequency furnace capacitor box, and a medium frequency furnace power supply box. The medium frequency induction furnace includes a furnace body and an induction coil for medium frequency heat melting. The furnace body is a hollow structure that runs through from top to bottom, with a lifting port at the top and an open port at the bottom. The induction coil is made of a hollow copper tube and is spirally arranged inside the furnace body. The recovery device includes a casting mold, which is arranged below the furnace body and is used to receive the liquid casting alloy that is melted and dripped by the medium frequency heat melting; The lifting device is used to lift the wire rope anchor joint to be recovered from the lifting port and suspend it in the furnace body for hot melting, and lift the wire rope anchor joint recovered by hot melting out of the furnace body; The circulating water cooling device is connected to the induction coil of the intermediate frequency furnace device, the power supply box of the intermediate frequency furnace, and the capacitor box of the intermediate frequency furnace through the circulating water pipe to provide cooling; The electric control device is used to supply power to and control the above devices.

2. The heavy-duty wire rope anchor joint cast alloy integrated casting recovery system according to claim 1, characterized in that: The furnace body is designed as a three-layer structure, the outer layer is a heat insulation board, the middle layer is the induction coil, and the inner layer is fireproof mud.

3. The heavy-duty wire rope anchor joint cast alloy integrated casting recovery system according to claim 2, characterized in that: An observation window that can be opened and closed is also provided at the lower portion of the outer wall of the furnace body.

4. The heavy-duty wire rope anchor joint cast alloy integrated casting recovery system according to claim 1, characterized in that: The recovery device also includes a pull-out base, the casting mold is arranged on the pull-out base, and the pull-out base is provided with an electric heating device for heating and keeping the casting alloy in the casting mold warm.

5. The heavy-duty wire rope anchor joint cast alloy integrated casting recovery system according to claim 1, characterized in that: The lifting device includes a lifting arm, a sling provided at the front end of the lifting arm, and a lifting and rotating mechanism connected to the rear end of the lifting arm. The wire rope anchor joint to be recovered is connected through the sling, and is lifted and rotated to the top of the lifting port of the furnace body through the lifting and rotating mechanism, and then lowered and lifted into the furnace body; after the hot melt is recovered, it is lifted out of the furnace body in the opposite direction by the lifting and rotating mechanism.

6. A heavy-duty wire rope anchor joint cast alloy integrated casting recovery system as claimed in claim 5, characterized in that: The lifting device also includes a pair of limit switches for monitoring the lifting height of the boom and a pair of limit switches for monitoring the rotation angle of the boom.

7. The heavy-duty wire rope anchor joint cast alloy integrated casting recovery system according to claim 1, characterized in that: The circulating water cooling device includes a circulating water tank, a circulating water pump, and a water channel splitter. The circulating water tank is connected to the circulating water pump and the water channel splitter in sequence through a circulating water pipe, and then connected to the induction coil of the intermediate frequency furnace device, the intermediate frequency furnace capacitor box, and the intermediate frequency furnace power supply box through the water channel splitter by the circulating water pipe, thereby forming a water cooling cycle.

8. The recycling method of the heavy-duty steel wire rope anchor joint casting alloy integrated recycling system according to claim 1, characterized in that: The following steps are involved: A. Install the fixing clip on the wire rope of the wire rope anchor joint to be recovered; B. Use the electronic control device to control the lifting device's boom to rotate above the wire rope anchor joint to be recovered, and connect it to the fixing clamp through the spreader; C. The lifting arm of the lifting device is controlled by the electronic control device to lift and rotate to the top of the lifting port of the furnace body, and then lowered and lifted into the furnace body; D. The induction coil of the intermediate frequency furnace device is energized by the electronic control device to perform intermediate frequency heating, so that the casting alloy in the wire rope anchor joint melts and drips into the casting mold of the recovery device. At the same time, the circulating water cooling device is controlled by the electronic control device to circulate water cooling to the induction coil, the intermediate frequency furnace power supply box, and the intermediate frequency furnace capacitor box respectively; E. After the casting alloy has been melted, the casting mold is taken out for cooling and demoulding to obtain the recovered casting alloy blank, and the recovered wire rope anchor joint is lifted out of the furnace body by the lifting device.

9. The recycling method of the heavy-duty steel wire rope anchor joint cast alloy integrated recycling system according to claim 8, characterized in that: In step D, the electric heating device is simultaneously turned on by the electric control device to heat and keep the casting alloy in the casting mold. The temperature is controlled to be above 200° C. to keep it in a liquid flow state.

10. The recycling method of the heavy-duty steel wire rope anchor joint cast alloy integrated recycling system according to claim 1, characterized in that: In step D, the medium frequency heating adopts segmented control, including a heating stage, a melting stage, and a heat preservation stage. The medium frequency current in the heating stage is regulated at 20-25A, the time is 4-6 minutes, and the target temperature is controlled to rise rapidly from 0°C to above 450°C; the medium frequency current in the melting stage is regulated at 15-20A, the time is 5-7 minutes, and the target temperature is controlled at 450-550°C; the medium frequency current in the heat preservation stage is regulated at 10-15A, and the time is 4-5 minutes.