A tapping process for ferromanganese alloy

Abstract

The present invention discloses a tapping process for ferromanganese alloy, which includes arranging a tapping transportation path around a refining furnace; laying transportation tracks along the tapping transportation path, arranging a tapping transportation vehicle on the transportation tracks, and equipping the tapping transportation vehicle with a tipping device. Before tapping, the tapping transportation vehicle transports a molten iron ladle to the tapping hole to receive the high-temperature ferromanganese alloy solution, transports the molten iron ladle to a shaking ladle pre-refining system for pre-refining, quenches the manganese slag obtained after pre-refining, and the tapping transportation vehicle transports the remaining ferromanganese alloy solution in the molten iron ladle to a pouring system and pours it into a pouring trough of the pouring system, and after cooling, it is transported to a finished product workshop for crushing. By reasonably arranging the tapping transportation path of medium and low carbon ferromanganese, the present invention plans the tapping operation mode and sequence, uses the tapping transportation vehicle to transfer the ferromanganese alloy solution, and dumps the ferromanganese alloy solution through the tipping device, avoiding the phenomena of the molten iron ladle swaying and hot iron scattering, and effectively improving the stability and safety of tapping.

Description

Technical Field

[0001] The invention relates to the technical field of manganese-based ferroalloy smelting, in particular to a furnace-out process for ferromanganese alloy. Background Art

[0002] Manganese-based ferroalloys are important raw materials for steelmaking and occupy a very important strategic position in the national economy. The amount of manganese used in the steel industry accounts for 90%-95% of manganese consumption. Manganese-based ferroalloys include high-carbon ferromanganese, medium-, low- and micro-carbon ferromanganese. They are mainly used for deoxidation, desulfurization and alloying of ordinary steel. They can also be used for alloying of special steel, welding wire steel, welding rods and stainless steel. When the hot charging and hot exchange processes are used to produce medium- and low-carbon ferromanganese alloys, the products are placed in the ladle and shake ladle, and the high-temperature low-carbon ferromanganese is transported to the cast steel tank by the crane for cooling. After cooling to a certain temperature, the final product is formed by finishing and sold. At present, the method of unloading by crane transfer is adopted, which is easy to shake during transportation. The ladle is dumped by hooking the auxiliary hook of the crane to the ladle and rising it for dumping. It is easy to cause hot iron to scatter. The stability and safety of unloading are extremely poor, and it is difficult to maintain and the maintenance cost is high. Summary of the invention

[0003] The main purpose of the present invention is to overcome the defects of the above-mentioned background technology and provide a furnace-out process for ferromanganese alloy.

[0004] To achieve the above object, a tapping process for ferromanganese alloy proposed by the present invention includes the following steps: S1. Configure a tapping transport path corresponding to the side of the tapping hole around the refining furnace; S2. Lay a transport track along the tapping transport path, and set a tapping transport vehicle on the transport track, and a tipping device is equipped on the tapping transport vehicle; S3. Before the ferromanganese alloy solution in the refining furnace is tapped, the tapping transport vehicle transports the ladle to the tapping hole of the refining furnace, and receives the high-temperature ferromanganese alloy solution through the ladle during tapping; S4. After the ladle receives the high-temperature ferromanganese alloy solution, the tapping transport vehicle transports the ladle to the shaking ladle pre-refining system, and pours the manganese slag on the upper layer of the ladle into the shaking ladle of the shaking ladle pre-refining system through the tipping device for pre-refining. The manganese slag obtained after pre-refining is poured into a slag ladle, and the slag ladle is hoisted by a crane to the water quenching system for water quenching treatment. The intermediate alloy solution obtained after pre-refining is hot charged into the refining furnace; S5. The tapping transport vehicle transports the remaining ferromanganese alloy solution in the ladle to the casting system, and pours the ferromanganese alloy solution in the ladle into the casting trough of the casting system through the tipping device; S6. After the ferromanganese alloy solution is cooled in the casting trough, it is transported to the finished product workshop for crushing. The tapping transport vehicle transports the ladle loaded with the ferromanganese alloy solution to the shaking ladle pre-refining system, and pours out the upper layer of manganese slag through the tipping device for shaking refining. The remaining ferromanganese alloy solution in the ladle is transported to the casting trough of the casting system for cooling. The whole transportation process will not sway, and the pouring is accurate, effectively avoiding the scattering of hot iron, and improving the stability and safety of tapping.

[0005] Further, the transport track includes two groups of parallel I-beams. Sleepers are laid at the bottom of the I-beams, and foundation beams parallel to the I-beams are provided at both ends below the sleepers for raising the transport track above the ground. By raising the transport track, it is avoided that the hot iron scattered during tapping enters the channel, causing the tapping transport vehicle to derail and affecting tapping. At the same time, it is also avoided that the hot iron accumulates on the transport track and corrodes the track itself, extending the service life of the track.

[0006] Further, a self-propelled tractor is provided on the transport track for towing the tapping transport vehicle to move on the transport track. The self-propelled tractor includes a vehicle body, a counterweight block and a drive assembly. The vehicle body is detachably connected to one end of the tapping transport vehicle through a coupler. The counterweight block is arranged on the vehicle body. The drive assembly includes a drive motor, a battery pack and a drive controller. The drive motor is connected to the axle at the bottom of the vehicle body, and the battery pack and the drive controller are arranged on the vehicle body and electrically connected to the drive motor. By driving the tapping transport vehicle to move on the transport track through the self-propelled tractor, the tapping of the high-temperature ferromanganese alloy solution is realized, effectively ensuring the stability of the tapping transport vehicle when transporting the ladle.

[0007] Furthermore, the tapping carrier vehicle includes a carrying platform. A gear train mechanism corresponding to the I-beam rail is provided at the bottom of the carrying platform. A rotating mechanism is provided on the carrying platform, and the ladle and the tilting device are arranged on the rotating mechanism. After the tapping carrier vehicle transports the high-temperature ferromanganese alloy solution to a designated position, the rotating mechanism can drive the ladle and the tilting device to rotate by a certain angle and then tilt, ensuring that the container to receive can be aligned during tilting and preventing hot iron from scattering.

[0008] Furthermore, the gear train mechanism includes wheels, axles, and fixed seats. The wheels are rotatably arranged at both ends of the axles and are in rolling connection with the heads of the I-beam rails. One end of the fixed seat is fixedly connected to the bottom surface of the carrying platform. The axles pass through the fixed seats on both sides. A protruding flange is provided on the inner side of the tread surface of the wheels. The flange prevents the tapping carrier vehicle from derailing and affecting its operation.

[0009] Furthermore, limit blocks are horizontally arranged at the free ends of the fixed seats on both sides. The limit blocks extend into the concave parts of the inner web of the I-beam rail, preventing the tapping carrier vehicle from tipping over.

[0010] Furthermore, position sensors are respectively provided at the tapping openings of the refining furnace, the shaking ladle pre-refining system, and the pouring system corresponding to the I-beam rail.

[0011] Furthermore, the rotating mechanism includes a rotating disk, a rotating shaft, and a rotating motor. The rotating disk is rotatably arranged on the top surface of the carrying platform through the rotating shaft. The bottom end of the rotating shaft passes through the carrying platform and is connected to the output end of the rotating motor arranged at the bottom of the carrying platform. A circular grating is provided at the shaft end of the rotating shaft.

[0012] Furthermore, the tilting device includes guide rails, a tipping platform, a support frame, and a hydraulic cylinder. The guide rails are arranged in parallel on the rotating disk. Chutes are provided on the opposite sides at one end of the guide rails. A sliding rod is arranged between the two chutes. A support seat is arranged on the sliding rod. The support seat is fixedly connected to the bottom surface of one end of the tipping platform. An L-shaped support rod is provided on the side surface of the other end of the tipping platform. The long side of the L-shaped support rod is hinged to the side surface of the tipping platform, and the short side of the L-shaped support rod is hinged to the guide rail. The extending end of the hydraulic cylinder is hinged to the middle of the L-shaped support rod, and the fixed section of the hydraulic cylinder is hinged to the top surface of the rotating disk. There are two groups of support frames, and both groups of support frames are fixed on the tipping platform. Positioning grooves corresponding to the shaft ears on the ladle are provided at the top ends of the support frames.

[0013] Further, a positioning ring is provided between the two sets of support frames. The inner ring surface of the positioning ring is configured as an inner inverted conical surface structure that is wider at the top and narrower at the bottom and corresponds to the bottom of the ladle. A weighing sensor is provided at the bottom of the positioning ring.

[0014] The beneficial effects of the present invention include: By reasonably arranging the tapping and conveying path of medium and low carbon ferromanganese to plan the tapping operation mode and sequence, transferring the ferromanganese alloy solution through the tapping carrier vehicle, and pouring the ferromanganese alloy solution through the pouring device, the present invention avoids the swaying and shaking of the ladle loaded with the ferromanganese alloy solution and the phenomenon of hot iron scattering, effectively improving the stability and safety of tapping. The design of the present invention is ingenious, the process is simple, the involved structure is relatively simple, and the use and maintenance are convenient and reliable. Description of the Drawings

[0015] Figure 1 is a schematic diagram of the tapping path layout of ferromanganese alloy in an embodiment of the present invention.

[0016] Figure 2 is a schematic diagram of the installation of the conveying track and the tapping carrier vehicle in an embodiment of the present invention.

[0017] Figure 3 is an assembly schematic diagram of the tapping carrier vehicle, the rotating mechanism and the pouring device in an embodiment of the present invention.

[0018] Figure 4 is a schematic diagram of the pouring device in an embodiment of the present invention.

[0019] Figure 5 is an exploded view of the tapping carrier vehicle, the rotating mechanism and the pouring device in an embodiment of the present invention.

[0020] Figure 6 is a schematic diagram of the self-propelled tractor in an embodiment of the present invention.

[0021] Figure 7 is a schematic diagram of the ladle in an embodiment of the present invention.

[0022] Description of the drawings: 1 refining furnace; 2 tapping and transporting path; 3 transporting track; 301 I-beam rail; 302 sleeper; 303 foundation beam; 4 tapping and transporting vehicle; 401 transporting platform; 402 rotating mechanism; 4021 rotating disk; 4022 rotating shaft; 4023 rotating motor; 4024 circular grating; 403 wheel; 404 axle; 405 fixed seat; 406 wheel flange; 407 limit block; 5 tilting device; 501 guide rail; 5011 chute; 502 tipping platform; 503 support frame; 504 hydraulic cylinder; 505 slide bar; 506 support seat; 507 L-shaped support rod; 508 positioning ring; 509 weighing sensor; 6 ladle; 601 axle ear; 7 rocking furnace pre-refining system; 8 water quenching system; 9 pouring system; 10 self-propelled tractor; 1001 vehicle body; 1002 counterweight; 1003 drive motor; 1004 battery pack; 1005 drive controller; 1006 axle; 11 coupler. Detailed implementation manners

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the embodiments of the present invention clearer, the present invention will be further described in detail below through experiments, in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0024] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. In addition, the connection can be for a fixing function or for an electrical connection function.

[0025] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0026] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0027] Refer to Figures 1 to 7, the specific process and related structures of the ferromanganese alloy tapping process disclosed in the present invention are as follows: S1. An out-of-furnace transport path 2 corresponding to the tapping side is arranged around the refining furnace 1. The out-of-furnace transport path 2 is set according to the equipment layout at the production site. In this embodiment, the out-of-furnace transport path 2 is a straight line; S2. Transport rails 3 are arranged along the out-of-furnace transport path 2, and an out-of-furnace transport vehicle 4 is set on the transport rails 3. The out-of-furnace transport vehicle 4 is equipped with a tipping device 5. The transport rails 3 include two groups of parallel I-beams 301. Sleepers 302 are laid at the bottom of the I-beams 301. Foundation beams 303 parallel to the I-beams 301 are provided at both ends below the sleepers 302. The foundation beams 303 are used to raise the transport rails 3 above the ground. The sleepers 302 and the foundation beams 303 can both be made of cast concrete. By raising the transport rails 3 above the ground, it is avoided that the hot iron during tapping scatters into the trough, causing the out-of-furnace transport vehicle 4 to derail and affecting the tapping, effectively solving the problem of difficult tapping of the out-of-furnace transport vehicle 4. At the same time, it also avoids the corrosion of the transport rails 3 caused by the accumulation of hot iron on the transport rails 3 and extends the service life of the rails; S3. Before the ferromanganese alloy solution in the refining furnace 1 is tapped, the out-of-furnace transport vehicle 4 transports the ladle 6 to the tapping port of the refining furnace 1, and receives the high-temperature ferromanganese alloy solution through the ladle 6 during tapping; S4. After the ladle 6 finishes receiving the high-temperature ferromanganese alloy solution, the out-of-furnace transport vehicle 4 transports the ladle 6 to the shaking ladle pre-refining system 7. The manganese slag on the upper layer of the ladle 6 is poured into the shaking ladle of the shaking ladle pre-refining system 7 through the tipping device 5 and pre-refined. The manganese slag obtained after pre-refining is poured into a slag ladle, and the slag ladle is hoisted to the water quenching system 8 by a crane for water quenching treatment. The intermediate alloy solution obtained after shaking ladle pre-refining is hot charged into the refining furnace 1 to re-refine medium and low carbon ferromanganese alloy; S5. The out-of-furnace transport vehicle 4 transports the remaining ferromanganese alloy solution in the ladle 6 to the casting system 9, and pours the ferromanganese alloy solution in the ladle 6 into the casting trough of the casting system 9 through the tipping device 5; S6. After the ferromanganese alloy solution cools in the casting trough, it is transported to the finished product workshop for crushing. The present invention reasonably arranges the out-of-furnace transport path 2 of medium and low carbon ferromanganese to plan the out-of-furnace operation mode and sequence, transports the ferromanganese alloy solution through the out-of-furnace transport vehicle 4, avoids the swaying of the ladle 6 loaded with the ferromanganese alloy solution during transportation, and pours the ferromanganese alloy solution through the tipping device 5, eliminating the phenomenon of hot iron scattering, effectively improving the stability and safety of tapping. The design of the present invention is ingenious, the process is simple, the involved structure is relatively simple, and the use and maintenance are convenient and reliable.

[0028] In a specific example, a self-propelled tractor 10 is provided on the conveying track 3. The self-propelled tractor 10 is used to tow the tapping conveying vehicle 4 to move on the conveying track 3. The self-propelled tractor 10 includes a vehicle body 1001, a counterweight 1002 and a drive assembly. The vehicle body 1001 is detachably connected to one end of the tapping conveying vehicle 4 through a coupler 11. The coupler 11 can adopt a Janney coupler. The counterweight 1002 is arranged on the vehicle body 1001 to make the two sides of the conveying track 3 evenly stressed and keep stable without slipping during towing. The drive assembly includes a drive motor 1003, a battery pack 1004 and a drive controller 1005. The drive motor 1003 is connected to the axle 1006 at the bottom of the vehicle body 1001. The battery pack 1004 and the drive controller 1005 are arranged on the vehicle body 1001 and electrically connected to the drive motor 1003. By using the self-propelled tractor 10 to drive the tapping conveying vehicle 4 to move on the conveying track 3, the tapping of the high-temperature ferromanganese alloy solution is realized, effectively ensuring that the tapping conveying vehicle 4 is more evenly and stably stressed when carrying the molten iron ladle 6. Moreover, the self-propelled tractor 10 is electrically driven, which has higher efficiency, lower pollution and lower operating costs.

[0029] In a specific example, the tapping conveying vehicle 4 includes a conveying platform 401. A gear train mechanism corresponding to the I-beam rail 301 is provided at the bottom of the conveying platform 401. A rotating mechanism 402 is provided on the conveying platform 401. The molten iron ladle 6 and the tilting device 5 are arranged on the rotating mechanism 402. After the tapping conveying vehicle 4 transports the high-temperature ferromanganese alloy solution to a specified position, the rotating mechanism 402 can drive the molten iron ladle 6 and the tilting device 5 to rotate a certain angle and then tilt. For example, in this embodiment, the rocking ladle preheating system 7 is located on the side of the conveying track 3, and the pouring system 9 is located at the end of the conveying track 3. After pouring the manganese slag on the upper layer in the molten iron ladle 6 into the rocking ladle, the remaining ferromanganese alloy solution is transported to the pouring system 9. At this time, the molten iron ladle 6 needs to be rotated 90° so that the outlet of the molten iron ladle 6 is aligned with the pouring trough of the pouring system 9, avoiding spilling when pouring the ferromanganese alloy solution and increasing the flexibility of the pouring position of the molten iron ladle 6.

[0030] In a specific example, the gear train mechanism includes wheels 403, axles 404 and fixed seats 405. The wheels 403 are rotatably arranged at both ends of the axles 404 and are in rolling connection with the rail heads of the I-beam rails 301. One end of the fixed seat 405 is fixedly connected to the bottom surface of the conveying platform 401. The axles 404 pass through the fixed seats 405 on both sides. A protruding flange 406 is provided on the inner side of the tread surface of the wheels 403. By setting the flange 406 on the tread surface of the wheels 403, it effectively prevents the tapping conveying vehicle 4 from derailing and separating from the conveying track 3, causing the tapping conveying vehicle 4 to drop off the track and affecting the tapping.

[0031] In a specific example, a limiting block 407 is horizontally provided at the free ends of the fixed seats 405 on both sides, and the limiting block 407 extends into the concave portion of the inner web of the I-beam rail 301. By engaging the limiting block 407 into the web of the I-beam rail 301, the overturning and derailment of the conveying track 3 are effectively avoided, and the stability of tapping is further improved.

[0032] In a specific example, position sensors 12 are respectively provided at the tapping opening of the I-beam rail 301 corresponding to the refining furnace 1, at the shaking ladle pre-refining system 7, and at the pouring system 9. The position sensors 12 can be contact sensors or proximity sensors. The position signals collected by the position sensors 12 are fed back to the drive controller 1005 on the self-driven tractor 10 to control the start and stop of the self-driven tractor 10, and further control the movement or stop of the self-driven tractor 10 driving the tapping carrier vehicle 4, so as to achieve precise positioning of the tapping of the ferromanganese alloy solution, and avoid the ferromanganese alloy solution spilling outside when pouring it from the tapping opening of the refining furnace 1 into the ladle 6, from the ladle 6 into the shaking ladle or the pouring trough, which affects the tapping.

[0033] In a specific example, the rotating mechanism 402 includes a rotating disk 4021, a rotating shaft 4022, and a rotating motor 4023. The rotating disk 4021 is rotatably arranged on the top surface of the carrying platform 401 through the rotating shaft 4022. The bottom end of the rotating shaft 4022 passes through the carrying platform 401 and is connected to the output end of the rotating motor 4023 arranged at the bottom of the carrying platform 401. A circular grating 4024 is provided at the shaft end of the rotating shaft 4022. The rotating motor 4023 drives the rotating disk 4021 to rotate on the carrying platform 401 to adjust the tapping tipping point. The rotation angle is checked by the circular grating 4024 to ensure the accuracy of the tipping point position, and avoid the ferromanganese alloy solution spilling outside when pouring, which affects the tapping.

[0034] In a specific example, the pouring device 5 includes a guide rail 501, a tipping platform 502, a support frame 503, and a hydraulic cylinder 504. The guide rail 501 is arranged in parallel on the rotating disk 4021. A chute 5011 is provided on the opposite side of one end of the guide rail 501. A slide bar 505 is erected between the two chutes 5011. A support seat 506 is provided on the slide bar 505. The support seat 506 is fixedly connected to the bottom surface of one end of the tipping platform 502. An L-shaped support rod 507 is provided on the side surface of the other end of the tipping platform 502. The long side of the L-shaped support rod 507 is hinged to the side surface of the tipping platform 502, and the short side of the L-shaped support rod 507 is hinged to the guide rail 501. The extending end of the hydraulic cylinder 504 is hinged to the middle of the L-shaped support rod 507, and the fixed section of the hydraulic cylinder 504 is hinged to the top surface of the rotating disk 4021. There are two groups of support frames 503, and both groups of support frames 503 are fixed on the tipping platform 502. A positioning groove 5031 corresponding to the ear 601 on the ladle 6 is provided at the top end of the support frame 503. The positioning groove 5031 is of a V-shaped structure, and a convex block is provided inside the positioning groove 5031 near the pouring side to prevent the ear 601 from slipping out when the ladle 6 is tipped over. Specifically, a hydraulic station is configured on the tapping carrier vehicle 4 to drive the extension or retraction of the hydraulic cylinder 504. During the pouring operation, the two hydraulic cylinders 504 extend to push the L-shaped support rod 507 to turn backward. When the L-shaped support rod 507 turns backward, it drives the tipping platform 502 to rotate forward along the slide bar 505. At the same time, the slide bar 505 moves backward synchronously to ensure that the center of gravity of the ladle 6 loaded with ferromanganese alloy solution remains in the middle of the two I-beams 301 when the ladle 6 is tipped over to pour the ferromanganese alloy solution, avoiding abnormal wear and damage of the two I-beams 301 due to long-term uneven stress; and reducing the risk of the tapping carrier vehicle 4 tipping over.

[0035] In a specific example, a positioning ring 508 is provided between the two groups of support frames 503. The inner ring surface of the positioning ring 508 is of an inner inverted cone surface structure that is wider at the top and narrower at the bottom and corresponds to the bottom of the ladle 6, so that when the ladle 6 is placed on the tapping carrier vehicle 4, it can be accurately positioned inside the positioning ring 508, and at the same time, the stability of the ladle 6 on the tapping carrier vehicle 4 is ensured. A weighing sensor 509 is provided at the bottom of the positioning ring 508. The weighing sensor 509 can collect the weight of the ferromanganese alloy solution in the ladle 6, providing a reference for the amount of manganese slag on the upper layer poured from the ladle 6 and improving the accuracy of the pouring amount.

[0036] The above content is a further detailed description of the present invention in combination with specific / preferred embodiments, and it cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention pertains, without departing from the concept of the present invention, several alternatives or modifications can be made to these described embodiments, and these alternative or modified forms should all be regarded as belonging to the protection scope of the present invention. In the description of this specification, the description with reference to terms such as "an embodiment", "some embodiments", "preferred embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. Without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples. Although the embodiments of the present invention and their advantages have been described in detail, it should be understood that various changes, substitutions, and alterations can be made herein without departing from the scope of protection of the patent application.

Claims

1. A furnace-discharging process of ferromanganese alloy, characterized in that: The following steps are involved: S1. Arrange a furnace discharge transport path corresponding to the tap hole side on the periphery of the refining furnace; S2, laying out a transport track along the furnace-out transport path, and setting a furnace-out transport vehicle on the transport track, wherein the furnace-out transport vehicle is equipped with a dumping device; S3, before the ferromanganese alloy solution in the refining furnace is discharged from the furnace, the molten iron ladle is transported to the tapping port of the refining furnace by the discharge transport vehicle, and the high-temperature ferromanganese alloy solution is received by the molten iron ladle when the molten iron ladle is discharged from the furnace; S4, after the ladle receives the high-temperature ferromanganese alloy solution, the furnace carrier transports the ladle to the shaking ladle pre-refining system, pours the manganese slag on the upper layer of the ladle into the shaking ladle of the shaking ladle pre-refining system through the dumping device and pre-refining, pours the manganese slag obtained after pre-refining into the slag ladle, and hoists the slag ladle to the water quenching system by the overhead crane for water quenching treatment, and hot-charges the intermediate alloy solution obtained after pre-refining into the refining furnace; S5, the furnace transport vehicle transports the remaining ferromanganese alloy solution in the ladle to the pouring system, and pours the ferromanganese alloy solution in the ladle into the pouring trough of the pouring system through the pouring device; S6, the ferromanganese alloy solution is cooled in the casting trough and then transported to the finished product workshop for crushing; The carrying track includes two sets of parallel I-rails, the furnace-out carrying vehicle includes a carrying platform, a wheel train mechanism corresponding to the I-rail is provided at the bottom of the carrying platform, a rotating mechanism is provided on the carrying platform, the molten iron ladle and the dumping device are arranged on the rotating mechanism; the rotating mechanism includes a rotating disk, a rotating shaft and a rotating motor, the rotating disk is rotatably arranged on the top surface of the carrying platform through the rotating shaft, the bottom end of the rotating shaft passes through the carrying platform and is connected to the output end of the rotating motor arranged at the bottom of the carrying platform, and a circular grating is provided on the shaft end of the rotating shaft; the dumping device includes a guide rail, a turning platform, a support frame and a hydraulic cylinder, the guide rail is arranged parallel to the rotating disk, a slide groove is provided on the opposite side of one end of the guide rail, a slide rod is arranged between the two slide grooves, a support seat is provided on the slide rod, and the support seat The handle is fixedly connected to the bottom surface of one end of the flip platform, and an L-shaped support rod is provided on the side of the other end of the flip platform, the long side of the L-shaped support rod is hinged to the side surface of the flip platform, the short side of the L-shaped support rod is hinged to the guide rail, the extended end of the hydraulic cylinder is hinged to the middle part of the L-shaped support rod, and the fixed section of the hydraulic cylinder is hinged to the top surface of the rotating disk. The support frame is provided with two groups, and both groups of the support frames are fixed on the flip platform. The top of the support frame is provided with a positioning groove corresponding to the shaft ear on the iron ladle. During the dumping operation, the hydraulic cylinders on both sides extend out and flip backward against the L-shaped support rod. When the L-shaped support rod flips backward, it drives the flip platform to rotate forward along the slide rod. While flipping, the slide rod moves backward synchronously, so that the center of gravity of the iron ladle is maintained in the middle of the two I-rails when flipping and pouring the manganese-iron alloy solution.

2. The process for discharging ferromanganese alloy according to claim 1, characterized in that: A sleeper is laid at the bottom of the I-rail, and two ends below the sleeper are provided with a foundation beam parallel to the I-rail, which is used to raise the carrying track off the ground.

3. The process for producing ferromanganese alloy according to claim 2, characterized in that: A self-driving tractor is provided on the transport track for towing the out-of-furnace transport vehicle to move on the transport track. The self-driving tractor comprises a vehicle body, a counterweight and a drive assembly. The vehicle body is detachably connected to one end of the out-of-furnace transport vehicle via a hook. The counterweight is arranged on the vehicle body. The drive assembly comprises a drive motor, a battery pack and a drive controller. The drive motor is connected to the axle at the bottom of the vehicle body. The battery pack and the drive controller are arranged on the vehicle body and electrically connected to the drive motor.

4. The process for producing ferromanganese alloy according to claim 1, characterized in that: The wheel train mechanism includes a wheel, an axle and a fixed seat. The wheel is rotatably arranged at both ends of the axle and is rollingly connected to the rail head of the I-rail. One end of the fixed seat is fixedly connected to the bottom surface of the carrying platform. The axle passes through the fixed seats on both sides. A protruding wheel rim is provided on the inner side of the tread of the wheel.

5. The process for producing ferromanganese alloy according to claim 4, characterized in that: The free ends of the fixing seats on both sides are horizontally provided with limit blocks, and the limit blocks extend into the recessed parts of the inner side rail waist of the I-rail.

6. The process for producing ferromanganese alloy according to claim 5, characterized in that: Position sensors are respectively arranged at the I-rail corresponding to the iron outlet of the refining furnace, the shaking ladle pre-refining system and the pouring system.

7. The process for producing ferromanganese alloy according to claim 1, characterized in that: A positioning ring is arranged between the two groups of support frames, the inner ring surface of the positioning ring is set as an inner inverted cone structure which is wide at the top and narrow at the bottom and corresponds to the bottom of the ladle, and a weighing sensor is arranged at the bottom of the positioning ring.

Images