Accident molten steel treatment system and accident molten steel treatment method

Abstract

The invention belongs to an accident molten steel treatment system in the technical field of steelmaking production, and further relates to an accident molten steel treatment method. An accident molten steel diversion trench (17) is arranged in the traveling direction of the treatment position buggy ladle (5), the treatment position buggy ladle (5) is arranged on the treatment position in-out rails (3), and an accident molten steel collecting pit (4) is arranged underground between the treatment position in-out rails (3); an accident molten steel collecting pit (7) is arranged under the ground on the outer side of the rotating position in-out track (6), a rotating trolley (8) is arranged at one end of the rotating position in-out track (6), a rotating position buggy ladle (9) is arranged on the rotating trolley (8), and a guide cylinder (10) is arranged on the rotating trolley (8). According to the accident molten steel treatment system and method, the accident molten steel can be reliably received, guided out and collected in a seamless connection mode in the whole process when the steel ladle is located in a plurality of treatment positions, rotating positions and transportation walking paths, and the effects of avoiding major accidents, achieving automatic collection and facilitating treatment are achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of steelmaking production, and more specifically, relates to an accident molten steel treatment system. The present invention also relates to an accident molten steel treatment method. Background Art

[0002] As an important container and transportation carrier for high-temperature molten steel, the ladle plays a vital role in steelmaking production, especially in the refining process outside the furnace. The ladle is moved and transported on the ground by a ladle car. During the smelting or transportation process, the molten steel leaks due to the erosion of the lining refractory material, bottom blowing air bricks, sliding nozzles, etc. If the leaked molten steel cannot be effectively and timely discharged into the "accident pit", the high-temperature molten steel will quickly burn the processing station and transportation equipment and factory buildings; and it will cause fires and explosions, which may lead to production stoppages or casualties in severe cases. Therefore, in the field of smelting, in order to achieve innovative breakthroughs in process equipment, the prerequisite is to build a seamless, safe and reliable accident molten steel acceptance, discharge and collection system at each processing station of the molten steel ladle and all transportation paths.

[0003] In the prior art, there is a technology named "A ladle transport vehicle with a wheel guide device" and the publication number is "CN114871422A". This technology relates to the technical field of ladle transport equipment and proposes a ladle transport vehicle with a wheel guide device, including a traveling unit provided under the vehicle body, the traveling unit including a wheel and a guide device located on one side of the wheel, characterized in that the guide device includes a swing shaft and a guide wheel, the swing shaft is hingedly arranged on the vehicle body, the guide wheel is rotatably arranged on the swing shaft, the guide wheel is used to contact the side surface of the upper end of the track, and also includes a pressure device, the pressure device includes a clamping seat and a driving mechanism, the middle part of the clamping seat is hinged on the vehicle body, and is located on one side of the clamping seat hinge shaft and connected to the driving mechanism, and the other side is used to press on the swing shaft. Through the above technical scheme, the problem of sliding friction between the wheel rim and the track due to the production and installation errors of the track and wheels in the prior art on the ladle transport side is solved, causing the track and wheels to wear and affect the service life.

[0004] However, this technology does not involve the technical problems and technical solutions of the present application. Summary of the invention

[0005] The technical problem to be solved by the present invention is: in view of the shortcomings of the existing technology, a system for handling accident molten steel is provided which has a simple structure and can reliably receive, export and collect accident molten steel in a seamless manner throughout the entire process when the ladle is located at multiple processing positions, rotating positions and in the middle of the transportation walking path, so as to avoid causing accidents, ensure production safety, realize automated collection and reduce the labor intensity of on-site personnel.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is:

[0007] The present invention discloses an accident molten steel processing system, comprising a processing position and a rotating position. The processing position is provided with a processing position entry and exit track. A processing position accident molten steel collecting pit is provided on the ground between the processing position entry and exit track. A processing position ladle car is arranged on the upper part of the processing position entry and exit track. An accident molten steel guide groove is provided in the walking direction of the processing position ladle car. The rotating position comprises an entry and exit rotating position track. A rotating position ladle car is arranged on the upper part of the entry and exit rotating position track. An accident molten steel collecting pit for the rotating position ladle car when it is walking is provided on the outer side of the entry and exit rotating position track. A rotating trolley is provided at one end of the rotating position track. The rotating trolley carries the rotating position ladle car. A guide tube extending downward is provided on the rotating trolley. A lateral guide nozzle is provided on the rotating position ladle car. The rotating trolley is arranged in a rotating trolley foundation pit. An arc-shaped receiving flow groove is provided on the bottom surface of the rotating trolley foundation pit. The arc-shaped receiving flow groove is connected to the lead-out flow groove. The lead-out flow groove is connected to the accident molten steel collecting pit under the ground outside the rotating position entry and exit track.

[0008] The processing position includes processing position A and processing position B. Processing position A is provided with processing position entry and exit tracks, a processing position accident molten steel collection pit is provided below the ground between the processing position tracks of processing position A, and a processing position ladle car is arranged on the upper part of the processing position tracks of processing position A; processing position B is provided with processing position entry and exit tracks, a processing position accident molten steel collection pit is provided below the ground between the processing position tracks of processing position B, and a processing position ladle car is arranged on the upper part of the processing position tracks of processing position B.

[0009] The rotating ladle car on the rotating trolley can be moved to the processing position A for smelting treatment after the rotating trolley is rotated into position; and the rotating ladle car on the rotating trolley can also be moved to the processing position B for smelting treatment after the rotating trolley is rotated into position.

[0010] The rotating trolley foundation pit is a structure made of concrete, and the arc-shaped receiving flow channel below the bottom surface of the rotating trolley foundation pit is an annular structure.

[0011] The accident molten steel collection pit under the ground outside the rotating position entry and exit track is a long strip collection pit, so as to realize the full collection of accident molten steel leaked from the ladle when the rotating position ladle car is running in and out of the rotating position and when the rotating position ladle car is on the rotating position trolley, and to facilitate the lifting and processing of the factory crane; the accident molten steel collection pit between the processing position entry and exit tracks of processing position A and processing position B is a slope collection pit, so as to realize the full collection of accident molten steel leaked from the ladle when the processing position ladle car is running in and out of the processing position and when the processing position ladle car is respectively smelting and processing at processing position A or processing position B, and when the rotating position ladle car rotates and runs to processing position A or processing position B for smelting and processing, and to facilitate the lifting and processing of the factory crane.

[0012] The processing position ladle car and the rotating position ladle car are respectively provided with refractory receiving plates. The refractory receiving plate of the processing position ladle car is connected to the inner lining and provided with an accident molten steel diversion groove of refractory material; the refractory receiving plate of the rotating position ladle car is connected to the inner lining and provided with a diversion nozzle of refractory material, and the inner wall of the diversion tube on the rotating trolley is a refractory layer.

[0013] The molten steel on the ladle car at the processing position, when being transported on the track in and out of the processing position; or when being driven to the processing position A or processing position B for smelting, the accidental molten steel that leaks out can be received by the receiving plate, and directly introduced into the accidental molten steel collection pit that can be hoisted and processed by the plant crane through the accidental molten steel guide groove 17 on the ladle car at the processing position;

[0014] The molten steel ladle on the rotating position ladle car, when being transported on the track entering and exiting the rotating position; or when accidental molten steel leaks out during the rotation of the rotating trolley when it is driven to the rotating position, can be received by the receiving plate and discharged through the connecting guide nozzle on the upper side of the rotating position ladle car. Among them, in the state of transportation on the track entering and exiting the rotating position, the accidental molten steel discharged by the guide nozzle can be directly introduced into the accidental molten steel collection pit under the ground outside the rotating position track and can be hoisted and processed by the factory crane; and in the state of being on the rotating trolley, the accidental molten steel discharged by the guide nozzle can also automatically be introduced into the accidental molten steel collection pit that can be hoisted and processed by the factory crane through the guide tube on the rotating trolley, the arc-shaped receiving flow channel under the bottom surface of the rotating trolley foundation pit, and the connecting and discharging flow channel.

[0015] After the molten steel ladle on the rotating ladle car is rotated and locked by the rotating trolley, it runs to the processing position A or the processing position B for smelting treatment. The accidental molten steel that leaks out can be received by the receiving plate and directly discharged through the connecting guide nozzle on the side of the rotating ladle car to the accidental molten steel collection pit set under the ground between the processing position tracks set in the processing position A and the processing position B, which can be hoisted and processed by the factory overhead crane.

[0016] The present invention also relates to a method for treating accidental molten steel with simple and ingenious steps, which can seamlessly receive, export and collect accidental molten steel when the ladle is located at various processing positions, rotating positions and in the middle of the transportation walking path, thereby avoiding causing serious accidents, ensuring production safety, and realizing automatic collection, thereby reducing the labor intensity of on-site personnel. The accidental molten steel treatment system has the following steps for treating accidental molten steel:

[0017] S1. When the ladle leaks steel in the rotating position ladle car at the rotating trolley position or during the rotating process, the accidental molten steel is received by the refractory receiving plate of the rotating position ladle car and discharged to the guide tube on the rotating trolley through the side guide nozzle of the ladle car; the accidental molten steel is then introduced by the guide tube into the arc-shaped accidental flow channel below the bottom surface of the rotating trolley pit under the rotating trolley; the accidental molten steel is then guided into the accidental molten steel collection pit outside the rotating position track through the connected outlet flow channel;

[0018] S2. When the ladle car at the rotating position is driven onto the rotating trolley and rotated by the rotating trolley and then runs to the processing position A or processing position B for smelting treatment, if the ladle leaks steel, the accidental molten steel is received by the refractory receiving plate on the rotating ladle car and is respectively discharged to the accidental molten steel collection pit between the processing position entrance and exit tracks of processing position A and processing position B through the side guide nozzle of the ladle car;

[0019] S3. When the ladle leaks during the transfer process of the rotating ladle car on the rotating trolley, the accident molten steel is received by the refractory receiving plate 18 on the rotating ladle car and introduced into the accident molten steel collection pit through the side guide nozzle of the ladle car.

[0020] S4. When the ladle car that directly enters the processing position is conducting smelting processing at processing position A or processing position B; and when a steel leakage accident occurs during the process of entering or exiting the processing position on the access track, the accident molten steel is received by the refractory receiving plate on the processing position ladle car, and is discharged to the accident molten steel collection pit between the processing position access tracks of processing position A and processing position B respectively through the accident molten steel diversion troughs arranged in the traveling direction of the processing position ladle car.

[0021] The technical solution of the present invention is adopted, and the working principle and beneficial effects are as follows:

[0022] The accident molten steel treatment system and treatment method described in the present invention are because the molten steel ladle needs to be in different positions during the transportation process and smelting treatment through the ladle car, and the molten steel leakage accident may occur during the transportation process and the treatment at different positions, and it is necessary to have the ability to seamlessly accept, export and collect the accident molten steel in different situations. To this end, the ladle car is first improved. Because the ladle cars at the processing position and the rotating position have different paths to enter different smelting positions; in addition, the corresponding accident molten steel collection troughs and pits along the way are different, so the structural designs of the rotating position ladle car and the processing position ladle car are also different. The processing position ladle car is provided with an accident molten steel diversion groove that is consistent with the walking direction of the ladle car; and the rotating position ladle car is provided with a side accident molten steel diversion nozzle that is perpendicular to the walking direction of the ladle car. The diversion groove and the diversion nozzle are both used to guide the leaked molten steel under different conditions, so that the high-temperature molten steel will not overflow or flow out, but enter the corresponding collection pit. Secondly, the structure of the rotating trolley and the foundation pit where it is located is specially improved. A guide tube extending downward is set on the rotating trolley, and an arc-shaped receiving flow channel is set in the foundation pit at the bottom of the rotating trolley. The arc-shaped receiving flow channel is connected to the outlet flow channel, and the outlet flow channel is connected to the accident molten steel collection pit outside the rotating position inlet and outlet track. In this way, when the molten steel leaks from the ladle on the rotating position, the accident molten steel is received by the refractory receiving plate of the rotating position ladle car, and is exported to the guide tube on the rotating trolley through the side guide nozzle on the ladle car; the accident molten steel is then introduced into the arc-shaped accident flow channel in the foundation pit below the rotating trolley by the guide tube; the accident molten steel is then guided through the collection flow channel into the accident molten steel collection pit outside the rotating position track where the plant crane can lift and process. The arc-shaped accident flow channel is a ring structure, so the rotating trolley can continuously collect the accident molten steel even when it rotates counterclockwise, and the high-temperature molten steel will not endanger the normal operation of the rotating trolley and the rotating position ladle car. When the ladle car at the rotating position is rotated by the rotating trolley and runs to processing position A or processing position B for smelting treatment, if the ladle leaks, the accident molten steel is received by the refractory receiving plate on the rotating position ladle car, and is guided to the accident molten steel collection pit between the processing position tracks through the side guide nozzle, so that the accident molten steel after the rotating position ladle car is rotated by the rotating trolley and runs to processing position A or processing position B can be collected. When the ladle leaks during the transfer of the rotating position ladle car on the rotating trolley on the rotating position entry and exit track, the accident molten steel is received by the refractory receiving plate on the rotating position ladle car, and is guided to the accident molten steel collection pit under the ground outside the rotating position entry and exit track through the side guide nozzle. When a steel leak accident occurs during the transfer of the ladle car on the processing position entry and exit track of processing position A or processing position B, the accident molten steel is received by the refractory receiving plate on the ladle car, and is guided to the accident molten steel collection pit between the processing position tracks through the guide groove of the ladle car in the running direction. It does not affect the continued movement of the ladle car, and can automatically collect the accident molten steel.In short, the invention enables the ladle car to reliably receive, export and collect accidental molten steel in a seamless manner throughout the entire process, regardless of the smelting and transfer station or transportation process, and effectively ensures the safety and convenience of on-site operations. It has achieved an innovative breakthrough in the "high quality, high efficiency and high benefit" of the core process equipment in the high-temperature liquid smelting industry, with significant comprehensive benefits and high promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The following is a brief description of the contents and symbols in the drawings of this specification:

[0024] Figure 1 It is a general plan view of the accident molten steel treatment system of the present invention;

[0025] Figure 2 This is a schematic elevation diagram of the rotating ladle car receiving and discharging molten steel;

[0026] Figure 3 It is a schematic elevation diagram of the receiving, exporting and collecting of accidental molten steel when the rotating ladle car is on the rotating platform;

[0027] Figure 4 It is a plan view of the molten steel outlet chute under the bottom of the rotating trolley foundation pit;

[0028] Figure 5 It is a schematic diagram of the discharge and collection of molten steel when the rotating ladle car moves forward or backward to the processing position A and the processing position B after the rotating trolley rotates;

[0029] Figure 6 It is a schematic elevation diagram of the side discharge and collection of accident molten steel when the rotating ladle car is transported on the inlet and outlet tracks;

[0030] The marks in the attached drawings are respectively: 1. processing position; 2. rotating position; 3. processing position inlet and outlet track; 4. accident molten steel collection pit between the processing position tracks; 5. processing position ladle car; 6. rotating position inlet and outlet track; 7. accident molten steel collection pit outside the rotating position inlet and outlet track; 8. rotating trolley; 9. rotating position ladle car; 10. guide tube on the rotating trolley; 11. side guide nozzle of accident molten steel on the rotating position ladle car; 12. rotating trolley foundation pit; 13. arc-shaped receiving flow channel; 14. outlet flow channel; 15. processing position A; 16. processing position B; 17. accident molten steel guide channel on the processing position ladle car; 18. refractory receiving tray; 19. molten steel ladle (ladle). DETAILED DESCRIPTION

[0031] The following is a further detailed description of the specific implementation of the present invention, such as the shape, structure, mutual position and connection relationship between the various components involved, the function and working principle of each part, etc., through the description of the embodiments with reference to the accompanying drawings:

[0032] As attached Figure 1 -Attached Figure 6As shown, the present invention is a system for treating accidental molten steel, comprising a treatment station 1 and a rotating station 2. The treatment station 1 is provided with a treatment station inlet and outlet track 3, and a treatment station accidental molten steel collecting pit 4 is provided on the ground between the treatment station inlet and outlet track 3. A treatment station ladle car 5 is arranged on the upper part of the treatment station inlet and outlet track 3, and an accidental molten steel guide groove 17 is provided in the walking direction of the treatment station ladle car 5; the rotating station 2 comprises an inlet and outlet rotating station track 6, and a rotating station ladle car 9 is arranged on the upper part of the inlet and outlet rotating station track 6, and a rotating station ladle car 9 is provided on the outer side of the inlet and outlet rotating station track 6. The accident molten steel collection pit 7 is provided, a rotating trolley 8 is arranged at one end of the rotating position inlet and outlet track 6, the rotating trolley 8 carries the rotating position ladle car 9, the rotating trolley 8 is provided with a guide tube 10 extending downward, the rotating position ladle car 9 is provided with a side guide nozzle 11, the rotating trolley 8 is arranged in the rotating trolley foundation pit 12, the bottom surface of the rotating trolley foundation pit 12 is provided with an arc receiving flow channel 13, the arc receiving flow channel 13 is connected to the outlet flow channel 14, and the outlet flow channel 14 is connected to the accident molten steel collection pit 7 when the rotating position ladle car outside the rotating position inlet and outlet track 6 is walking. The above structure proposes an improved technical solution to address the deficiencies in the prior art. When the structure is set, because the ladle car needs to be in different positions during transportation, and molten steel leakage accidents may occur during transportation and at different workstations, it is necessary to have seamless acceptance, outlet and collection of accident molten steel in different situations. To this end, the ladle car is first improved, and the rotating position ladle car and the processing position ladle car adopt different structures and accident molten steel outlet forms. The processing position ladle car 5 is provided with an accident molten steel diversion groove 17 in its travel direction; and the rotating position ladle car 9 is provided with a side diversion nozzle 11 in the vertical direction of its travel. The diversion groove and the diversion nozzle are respectively used to guide the leaked molten steel, so that the high-temperature molten steel will not overflow or flow out, but will enter the corresponding collection pit seamlessly and constrainedly. Secondly, the rotating trolley part is improved, and a downward extending diversion cylinder 10 is provided on the rotating trolley 8. At the same time, the rotating trolley concrete foundation pit 12 where the rotating trolley 8 is located is improved, and an arc-shaped receiving flow groove 13 is provided under the bottom surface of the rotating trolley foundation pit 12. The arc-shaped receiving flow groove 13 is connected to the outlet flow groove 14, and the outlet flow groove 14 is connected to the accident molten steel collection pit 7 when the rotating position ladle car is traveling under the ground outside the rotating position entry and exit track. In this way, when the rotating ladle car 9 is on the rotating trolley or in the process of rotating and the ladle leaks molten steel, the accident molten steel is received by the refractory receiving plate 18 of the rotating ladle car 9 and discharged to the guide tube 10 on the rotating trolley 8 through the side guide nozzle 11 of the ladle car; the accident molten steel is then introduced into the arc-shaped accident flow channel 13 under the bottom surface of the rotating trolley pit 12 under the rotating trolley 8 by the guide tube 10 with refractory material lined on the inner wall; the arc-shaped receiving flow channel 13 is connected to the outlet flow channel 14, and the outlet flow channel 14 is connected to the accident molten steel collection pit 7 which guides the long rotating ladle car into the outer side of the rotating track when it is moving.The arc-shaped accident flow channel 13 is an arc-shaped structure, so the rotating trolley 8 can continuously collect the accident molten steel during the process of rotating 90° counterclockwise, and will not affect the normal operation of the rotating trolley and the rotating ladle car. It does not affect the continuous movement of the ladle car, and can automatically and continuously collect the accident molten steel. In short, the system and method of the invention can reliably collect the accident molten steel in a continuous and connected manner throughout the whole process, no matter which workstation or link the ladle car is in, effectively ensuring the safety and convenience of on-site operations. The accident molten steel processing system described in the present invention has an ingenious and simple structure, and can reliably receive, export and collect the accident molten steel in a continuous and connected manner throughout the whole process when the ladle is located in each processing position, rotating position and during the rotation process, as well as during the transportation walking path, avoiding causing serious accidents, ensuring production safety, and realizing automatic collection, reducing the labor intensity of on-site personnel.

[0033] The processing position 1 includes processing position A15 and processing position B16. Processing position A15 is provided with a processing position entry and exit track 3. A processing position accident molten steel collection pit 4 is provided below the ground between the processing position entry and exit track 3 of processing position A15. A processing position ladle car 5 is arranged on the upper part of the processing position entry and exit track 3 of processing position A15. Processing position B16 is provided with a processing position entry and exit track 3. A processing position accident molten steel collection pit 4 is provided below the ground between the processing position entry and exit track 3 of processing position B16. A processing position ladle car 5 is arranged on the upper part of the processing position entry and exit track 3 of processing position B16. The above structure, according to the demand for innovation and breakthrough of core process equipment, is arranged between processing position A15 and processing position B16 in the rotating position, so that the rotating position ladle car 9 can be conveniently and reliably driven into processing position A15 or retreated to processing position B16 after rotating 90° counterclockwise and locking, thereby solving the transportation demand that the molten steel ladle 19 on the rotating position ladle car can also enter the two smelting stations of processing position A15 and processing position B16 for processing at different entry and exit angles from the processing position ladle car. The processing position A15 and processing position B16 are respectively provided with the same slope-shaped accident molten steel collection pit 4 between the processing position tracks, which are respectively used for the ladle car of the two processing positions in the process of entering and exiting; the ladle car of processing position A and processing position B is smelting and processing at the processing position; and after the rotating trolley is rotated 90° counterclockwise and locked, the rotating position ladle car on it drives to processing position A15 or processing position B16 for smelting and processing, and the accident molten steel is collected when the ladle leaks.

[0034] The rotating ladle car 9 on the rotating trolley 8 can be moved to the processing position A15 for smelting treatment after the rotating trolley 8 is rotated into place; and the rotating ladle car 9 on the rotating trolley 8 can also be moved to the processing position B16 for smelting treatment after the rotating trolley 8 is rotated into place. The above-mentioned process equipment innovation has different structural design requirements for the rotating ladle car 9 and the processing position ladle car 5. According to whether the ladle car can directly enter and exit or enter and exit the processing position A15 or the processing position B16 smelting treatment position after the rotating trolley rotates an angle; and the corresponding differences in the arrangement of the accident molten steel outlet and collection pit, the guide nozzle of the accident molten steel of the rotating ladle car 9 is set on the side of the ladle car; the guide groove of the accident molten steel of the processing position ladle car 5 is set in the walking direction of the ladle car. Under the condition that the ladle cars at the rotating and processing positions can conveniently and reliably enter and exit the processing positions for smelting, and all accidental molten steel leaked from all ladles under various conditions can be reliably discharged and collected, the number of processing positions A15, processing position B16 and rotating positions can be set in multiples, and the rotation angles can also be selected in multiples, that is, they can be flexibly set according to the needs of different process equipment, plant layout and other environments.

[0035] The rotating trolley foundation pit 12 is a structure made of concrete, and the arc-shaped receiving flow channel 13 below the bottom surface of the rotating trolley foundation pit 12 is an annular structure. The above structure is intended to meet the requirement that the rotating trolley 8 can also realize the seamless and continuous collection of accident molten steel during the process of rotating the ladle car 9. The rotating ladle car 9 includes a side guide nozzle 11 for the accident molten steel on the rotating ladle car.

[0036] The accident molten steel collection pit 7 for the rotating ladle car under the ground outside the rotating position entry and exit track is a long strip collection pit, which can simultaneously realize the operation of the rotating ladle car on the track of entering and exiting the rotating position; and when the rotating ladle car is on the rotating trolley, the accident molten steel is fully collected and convenient for the lifting and processing of the factory crane. The accident molten steel collection pit 4 between the processing position entry and exit tracks of processing position A15 and processing position B16 is a slope collection pit, which can simultaneously realize the operation of the processing position ladle car in and out of the processing position and when smelting and processing are carried out at processing position A15 or processing position B16; and when the rotating position ladle car is rotated by the rotating trolley and runs to processing position A15 or processing position B16 for smelting and processing, the accident molten steel is fully collected and convenient for the lifting and processing of the factory crane.

[0037] The ladle car 5 at the processing position and the ladle car 9 at the rotating position are provided with refractory receiving plates 18 respectively. The refractory receiving plates 18 at the processing position of the ladle car 5 are connected to the accident molten steel diversion groove 17 lined with refractory materials; the refractory receiving plates 18 at the rotating position of the ladle car 9 are connected to the diversion nozzle 11 lined with refractory materials, and the inner wall of the diversion tube 10 on the rotating trolley 8 is a refractory layer. The above structure ensures that when the ladle leaks, the high-temperature accident molten steel will not burn the ladle car and the rotating trolley, and the accident molten steel can be seamlessly and smoothly introduced into various accident molten steel collection pits.

[0038] The molten steel ladle 19 on the processing position ladle car 5, when being transported on the track 3 entering and exiting the processing position; or when being driven to the processing position A15 or the processing position B16 for smelting, the accidental molten steel that leaks out can be received by the receiving plate 18, and is introduced into the accidental molten steel collection pit 4 that can be hoisted and processed by the plant crane through the accidental molten steel guide groove 17 on the processing position ladle car 5;

[0039] The molten steel ladle 19 on the rotating position ladle car 9, when being transported on the track 6 for entering and exiting the rotating position; or the accidental molten steel leaking out during the rotation of the rotating trolley 8 when it is driven to the rotating position, can be received by the receiving plate 18, and introduced into the accidental molten steel collection pit 7 under the ground outside the track for entering and exiting the rotating position and can be hoisted and processed by the factory crane when the rotating position ladle car is moving through the connecting guide nozzle 11 on the upper side of the rotating position ladle car 9; or when it is on the rotating trolley 8, the accidental molten steel can be introduced into the accidental molten steel collection pit 7 when the rotating position ladle car is moving and can be hoisted and processed by the factory crane through the guide cylinder 10 on the rotating trolley 8, the arc-shaped receiving flow channel 13 under the bottom surface of the rotating trolley foundation pit 12, and the connecting and leading-out flow channel 14;

[0040] After the ladle 19 on the rotating ladle car 9 is rotated by the rotating trolley 8, any accidental molten steel that leaks out when it runs to the processing position A15 or B16 for smelting treatment can be received by the receiving plate 18 and directly discharged through the connecting guide nozzle 11 on the side of the rotating ladle car 9 to the processing position accident molten steel collection pit 4 set below the ground between the processing position entry and exit tracks 3 set at the processing position A15 or the processing position B16, which can be hoisted and processed by the factory overhead crane.

[0041] The present invention also relates to a method for treating accidental molten steel with simple and ingenious steps, which can seamlessly receive, export and collect accidental molten steel when the ladle is located at various processing positions, rotating positions and in the middle of the transportation walking path, thereby avoiding causing serious accidents, ensuring production safety, and realizing automatic collection, thereby reducing the labor intensity of on-site personnel. The accidental molten steel treatment system has the following steps for treating accidental molten steel:

[0042] S1. When the ladle leaks when the rotating ladle car 9 is at the rotating trolley 8 or is rotating, the accidental molten steel is received by the refractory receiving plate 18 of the rotating ladle car 9 and is led out to the guide tube 10 on the rotating trolley 8 through the side guide nozzle 11 of the ladle car; the accidental molten steel is then led by the guide tube 10 into the arc-shaped accident flow channel 13 below the bottom surface of the rotating trolley pit 12 under the rotating trolley 8; the accidental molten steel is then guided into the accidental molten steel collection pit 7 when the rotating ladle car is walking outside the rotating track through the connecting guide channel 14;

[0043] S2. When the rotating ladle car 9 is driven onto the rotating trolley 8 and the rotating trolley rotates and runs to the processing position A15 or the processing position B16, when the ladle leaks, the accident molten steel is received by the refractory receiving plate 18 on the rotating ladle car 9 and is respectively led out to the accident molten steel collection pit 4 between the processing position entry and exit tracks of the processing position A15 or the processing position B16 through the side guide nozzle 11 of the ladle car;

[0044] S3. When the ladle leaks during the transfer process of the rotating ladle car 9 on the rotating trolley 8, the accident molten steel is received by the material receiving plate 18 on the rotating ladle car 9 and introduced into the accident molten steel collection pit 7 when the rotating ladle car is moving through the side guide nozzle 11 of the ladle car.

[0045] S4. When the ladle car 5 that directly enters the processing position is being processed at processing position A15 or processing position B16; and when a steel leakage accident occurs during the transportation process of entering or leaving the processing position on the track 3, the accident molten steel is received by the refractory receiving plate 18 on the processing position ladle car 5, and is respectively discharged to the accident molten steel collection pit 4 between the processing position entry and exit tracks of processing position A15 and processing position B16 through the accident molten steel diversion groove 17 arranged in the moving direction of the processing position ladle car 5.

[0046] The accident molten steel treatment system and treatment method described in the present invention are because the ladle car needs to be in different positions during transportation, and molten steel leakage accidents may occur during transportation and at different workstations, and it is necessary to have the ability to seamlessly receive, export and collect the accident molten steel in different situations. To this end, the ladle car is first improved, and the rotating position ladle car and the processing position ladle car adopt different structures and accident molten steel export forms. The processing position ladle car 5 is provided with an accident molten steel guide groove 17 in its travel direction; and the rotating position ladle car 9 is provided with a side guide nozzle 11 in the vertical direction of its travel. The guide groove and the guide nozzle are respectively used to guide the leaked molten steel, so that the high-temperature molten steel will not overflow or flow out, but will enter the corresponding collection pit seamlessly and constrainedly. Secondly, the rotating trolley part is improved, a downward extending guide tube 10 is set on the rotating trolley 8, and at the same time the rotating trolley concrete foundation pit 12 where the rotating trolley 8 is located is improved, and an arc-shaped receiving flow channel 13 is set under the bottom surface of the rotating trolley foundation pit 12, the arc-shaped receiving flow channel 13 is connected to the outlet flow channel 14, and the outlet flow channel 14 is connected to the accident molten steel collection pit 7 when the rotating position ladle car is running under the ground outside the rotating position entry and exit track. In this way, when the rotating ladle car 9 is on the rotating trolley or during the rotation process, the accidental molten steel is received by the refractory receiving plate 18 of the rotating ladle car 9, and is led out to the guide tube 10 on the rotating trolley 8 through the side guide nozzle 11 of the ladle car; the accidental molten steel is then led into the arc-shaped accident flow channel 13 under the bottom surface of the rotating trolley foundation pit 12 below the rotating trolley 8 by the guide tube 10 with refractory material lined on the inner wall; the arc-shaped receiving flow channel 13 is connected to the lead-out flow channel 14, and the lead-out flow channel 14 is connected to the accidental molten steel collection pit when the rotating ladle car is walking and guided into the long strip outside the rotating track. The arc-shaped accident flow channel 13 is an arc-shaped structure, so the rotating trolley 8 can still continuously collect the accidental molten steel during the counterclockwise rotation of 90°, which will not affect the normal operation of the rotating trolley and the rotating ladle car. It does not affect the continuous movement of the ladle car, and can automatically and continuously collect the accidental molten steel. In short, the system and method of the invention can reliably collect accident molten steel in a continuous and connected manner throughout the entire process, no matter which workstation or link the ladle car is in, effectively ensuring the safety and convenience of on-site operations.

[0047] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention. At the same time, its feature is that it is not limited to high-temperature liquid steel, and the present invention is also applicable to other similar types of high-temperature liquid metals.

Claims

1. An accident molten steel treatment system, characterized in that: The invention comprises a processing position (1) and a rotating position (2); the processing position (1) is provided with a processing position entry and exit track (3); an accident molten steel collection pit (4) is provided on the ground between the processing position entry and exit track (3); a processing position ladle car (5) is arranged on the upper part of the processing position entry and exit track (3); an accident molten steel guide groove (17) is provided in the walking direction of the processing position ladle car (5); the rotating position (2) comprises an entry and exit rotating position track (6); a rotating position ladle car (9) is arranged on the upper part of the entry and exit rotating position track (6); an accident molten steel collection pit (7) is provided on the outer ground of the entry and exit rotating position track (6) when the ladle car is walking on the rotating position track. ), a rotating trolley (8) is arranged at one end of the rotating track (6), the rotating trolley (8) carries a rotating ladle car (9), a downwardly extending guide tube (10) is arranged on the rotating trolley (8), a lateral guide nozzle (11) is arranged on the rotating ladle car (9), the rotating trolley (8) is arranged in a rotating trolley foundation pit (12), an arc-shaped receiving flow channel (13) is arranged on the bottom surface of the rotating trolley foundation pit (12), the arc-shaped receiving flow channel (13) is connected to a lead-out flow channel (14), and the lead-out flow channel (14) is connected to an accident molten steel collection pit (7) when the ladle car is traveling on the rotating entry and exit track outside the rotating track (6).

2. The accident molten steel treatment system according to claim 1, characterized in that: The processing position (1) comprises a processing position A (15) and a processing position B (16); the processing position A (15) is provided with a processing position entry and exit track (3); a processing position accident molten steel collection pit (4) is provided below the ground between the processing position tracks (3) of the processing position A (15); and a processing position ladle car (5) is arranged on the upper part of the processing position tracks (3) of the processing position A (15); the processing position B (16) is provided with a processing position entry and exit track (3); a processing position accident molten steel collection pit (4) is provided below the ground between the processing position tracks (3) of the processing position B (16); and a processing position ladle car (5) is arranged on the upper part of the processing position tracks (3) of the processing position B (16).

3. The accident molten steel treatment system according to claim 1 or 2, characterized in that: The rotating ladle car (9) on the rotating trolley (8) can be moved to the processing position A (15) for smelting treatment after the rotating trolley (8) is rotated to the right position; and the rotating ladle car (9) on the rotating trolley (8) can also be moved to the processing position B (16) for smelting treatment after the rotating trolley (8) is rotated to the right position.

4. The accident molten steel treatment system according to claim 1 or 2, characterized in that: The rotating trolley foundation pit (12) is a structure made of concrete, and the arc-shaped receiving flow channel (13) below the bottom surface of the rotating trolley foundation pit (12) is an annular structure.

5. The accident molten steel treatment system according to claim 1 or 2, characterized in that: The accident molten steel collection pit (7) for the rotating position ladle car under the ground outside the rotating position entry and exit track when the rotating position ladle car is running is a long strip collection pit, so as to realize the full collection of accident molten steel during the operation of the rotating position ladle car entering and exiting the rotating position and facilitate the lifting and processing of the factory crane; the accident molten steel collection pit (4) between the processing position entry and exit tracks of the processing position A (15) and the processing position B (16) is a slope collection pit, so as to realize the full collection of accident molten steel during the operation of the processing position ladle car entering and exiting the processing position and facilitate the lifting and processing of the factory crane.

6. The accident molten steel treatment system according to claim 1 or 2, characterized in that: The ladle car (5) at the processing position and the ladle car (9) at the rotating position are respectively provided with refractory receiving plates (18); the refractory receiving plate (18) at the processing position is connected to the accident molten steel guide groove (17) whose lining is provided with refractory materials; the refractory receiving plate (18) at the rotating position is connected to the guide nozzle (11) whose lining is provided with refractory materials, and the inner wall of the guide tube (10) on the rotating trolley (8) is a refractory layer.

7. The accident molten steel treatment system according to claim 2, characterized in that: When the molten steel ladle (19) on the processing position ladle car (5) is transported on the track (3) entering and exiting the processing position, or when the molten steel leaks out when it is driven to the processing position A (15) or the processing position B (16) for smelting, the molten steel can be received by the receiving plate (18) and introduced into the molten steel collection pit (4) where it can be hoisted and processed by the factory crane through the connected molten steel guide groove (17) on the processing position ladle car (5).

8. The accident molten steel treatment system according to claim 3 is characterized in that: The molten steel ladle (19) on the rotating position ladle car (9) can be received by the receiving plate (18) when being transported on the track (6) for entering and exiting the rotating position, or when accidental steel leakage occurs during the rotation of the rotating trolley (8) when the ladle (19) is driven to the rotating position, and can be introduced into the accidental steel collection pit (7) under the ground outside the rotating position track and can be hoisted and processed by the factory crane when the rotating position ladle car is moving through the connecting guide nozzle (11) on the upper side of the rotating position ladle car (9); or when the rotating trolley (8) is mounted, the accidental steel can be introduced into the accidental steel collection pit (7) outside the rotating position track and can be hoisted and processed by the factory crane when the ladle car is moving through the guide tube (10) on the rotating trolley (8), the arc-shaped receiving flow channel (13) under the bottom surface of the rotating trolley foundation pit (12), and the connecting and leading out flow channel (14) to the accidental steel collection pit (7) outside the rotating position track and can be hoisted and processed by the factory crane when the ladle car is moving.

9. The accident molten steel treatment system according to claim 2, characterized in that: After the molten steel ladle (19) on the rotating ladle car (9) is rotated by the rotating trolley (8), or when it is transported to the processing position A (15) or B (16) for processing, any accidental molten steel that leaks out can be received by the receiving plate (18) and directly discharged through the connecting guide nozzle (11) on the upper side of the rotating ladle car (9) to the accidental molten steel collection pit (4) arranged below the ground between the processing position access tracks (3) arranged at the processing position A (15) and the processing position B (16) and can be hoisted by the factory crane for processing.

10. A method for treating accidental molten steel, characterized in that: The accident molten steel treatment system of the accident molten steel treatment system comprises the following steps: S1. When the ladle leaks when the rotating ladle car (9) is at the rotating trolley (8) position or is rotating, the accidental molten steel is received by the refractory receiving plate (18) of the rotating ladle car (9) and is led out to the guide tube (10) on the rotating trolley (8) through the side guide nozzle (11) of the ladle car; the accidental molten steel is then led by the guide tube (10) into the arc-shaped accident flow channel (13) below the bottom surface of the rotating trolley pit (12) below the rotating trolley (8); the accidental molten steel is then led into the accidental molten steel collection pit (7) outside the rotating position entry and exit track when the rotating ladle car is moving through the connecting guide channel (14); S2. When the rotating ladle car (9) is driven onto the rotating trolley (8) and the trolley rotates and runs to the processing position A (15) or the processing position B (16), and when the ladle leaks, the accidental molten steel is received by the refractory receiving plate (18) on the rotating ladle car (9) and is respectively discharged to the accidental molten steel collection pit (4) between the processing position entrance and exit tracks of the processing position A (15) and the processing position B (16) through the side guide nozzle (11) of the ladle car; S3. When the ladle leaks during the transfer process of the rotating ladle car (9) on the rotating trolley (8) when entering or leaving the rotating trolley (8), the accidental molten steel is received by the material receiving plate (18) on the rotating ladle car (9) and introduced into the accidental molten steel collection pit (7) when the ladle car is traveling on the rotating entry and exit track through the side guide nozzle (11) of the ladle car. S4. When the ladle car (5) that directly enters the processing position is being processed at processing position A (15) or processing position B (16); or when a steel leakage accident occurs during the process of entering or leaving the processing position track (3), the accident molten steel is received by the refractory receiving plate (18) on the processing position ladle car (5), and is respectively discharged to the accident molten steel collection pit (4) between the processing position entry and exit tracks of processing position A (15) and processing position B (16) through the accident molten steel diversion groove (17) arranged in the running direction of the processing position ladle car (5).

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