A manganese-iron alloy continuous casting device and method

Abstract

The application discloses a manganese-iron alloy continuous casting device and method, and relates to the field of manganese-iron alloy continuous casting devices.The manganese-iron alloy continuous casting device comprises a tundish, a central shaft, a valve assembly, a driving unit and a plurality of casting grain molds, the driving unit is connected with the central shaft, the tundish, the valve assembly, the driving unit and the plurality of casting grain molds are arranged on the central shaft, a nozzle sleeve is arranged on the tundish and is connected with the inside of the tundish, the nozzle sleeve is connected with the casting grain molds, the casting grain molds comprise a mold frame, a fixed mold shell, a movable mold shell and a mold opening and closing cam guide rail, the mold frame is fixedly arranged on the central shaft, the fixed mold shell is fixed on the mold frame, the movable mold shell is rotatably arranged on the mold frame through a rotating shaft, a female die plate is detachably arranged on the fixed mold shell and the movable mold shell, the female die plate is internally provided with a cooling channel, the bottom end of the rotating shaft is fixedly provided with a swing arm, the free end of the swing arm is provided with a mold opening and closing roller corresponding to the mold opening and closing cam guide rail, and the manganese-iron alloy continuous casting device is used for production.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ferrous alloy casting, in particular to a manganese-iron alloy continuous casting device and method. BACKGROUND

[0002] Manganese-iron alloy is one of indispensable additives in steel manufacturing, which is mainly composed of manganese and iron. The particle size of manganese-iron alloy has strict requirements. The manganese-iron alloy with too small particle size will float on the surface of molten steel and be lost by oxidation of slag. The manganese-iron alloy with too large particle size will sink into the bottom of the ladle and cannot be uniformly melted, which affects the uniformity of steel composition. The production index of manganese-iron alloy in the industry is usually set as the particle size of 50m-70m, and the utilization rate of the iron alloy with this particle size is the highest. When producing manganese-iron alloy products of different grades by using the traditional production process, the liquid manganese-iron alloy solution is usually poured into fixed cast iron ingot mold, and then small manganese-iron alloy blocks are obtained by waiting for natural cooling and solidification into larger blocks, and then mechanical crushing and manual crushing. This processing method not only consumes time and effort, but also has low production efficiency. In addition, the particle size of the manganese-iron alloy blocks after processing is inconsistent, the crushing and pulverization rate is high, and the pollution to the environment is also serious. SUMMARY

[0003] The main purpose of the present application is to overcome the defects in the background art, and provide a manganese-iron alloy continuous casting device and method.

[0004] To achieve the above object, the manganese-iron alloy continuous casting device provided by the application comprises an intermediate ladle, a central shaft, a valve assembly, a driving unit and a plurality of casting grain molds, the output end of the driving unit is connected with the central shaft, the intermediate ladle is fixedly arranged at the top end of the central shaft, the side wall of the intermediate ladle is uniformly distributed with a plurality of water nozzle sleeves which are communicated with the inside of the intermediate ladle in the circumferential direction, the valve assembly is arranged on the water nozzle sleeve, a plurality of the casting grain molds are uniformly distributed around the outer wall of the central shaft, the outlet end of the water nozzle sleeve is communicated with the inner cavity of the casting grain mold, the casting grain mold comprises a mold frame, a fixed mold shell, a movable mold shell and an open-close mold cam guide rail, the mold frame is fixedly arranged on the central shaft, the fixed mold shell is fixed on the mold frame, the movable mold shell is rotatably arranged on the mold frame through a rotating shaft, the fixed mold shell and the movable mold shell are both provided with a recessed die plate, the inside of the recessed die plate is provided with a cooling channel, the rotating shaft extends downward through the mold frame, the bottom end of the rotating shaft is fixedly provided with a swing arm, the free end of the swing arm is provided with an open-close mold roller which corresponds to the open-close mold cam guide rail. During production, the central shaft is rotated by the driving unit, the intermediate ladle, the valve assembly and the plurality of casting grain molds are synchronously rotated, when the open-close mold roller rotates into the closed mold position in the open-close mold cam guide rail, the recessed die plate is closed to form a casting grain cavity, the manganese-iron alloy solution in the inside of the intermediate ladle is injected into the casting grain cavity formed by the closed recessed die plate through the water nozzle sleeve and exchanges heat with the cooling liquid flowing in the cooling channel, so that the manganese-iron alloy solution is cooled and solidified into solid particles, when the open-close mold roller rotates into the open mold position on the open-close mold cam guide rail, the open-close mold roller drives the swing arm to rotate, the swing arm drives the rotating shaft and the movable mold shell to rotate to open the mold, the manganese-iron alloy particles solidified and formed in the recessed die plate are thrown out, then the movable mold shell is closed again to perform the next round of casting grain work, so that continuous casting is realized, when it is needed to change the volume or shape of the manganese-iron alloy particles, only the recessed die plate needs to be replaced, the manganese-iron alloy particles obtained by the continuous casting production of the manganese-iron alloy continuous casting device of the application have no pulverization, the pollution to the environment is small, the particle uniformity is high, the particle size of the manganese-iron alloy particles is convenient to change, and the production efficiency is high.

[0005] Further, the casting grain mold further comprises a lock mold shaft, a lock mold pin, a lock mold guide rail and a lock mold roller, the fixed mold shell is provided with at least one notch, the movable mold shell is provided with a protrusion corresponding to the notch, the protrusion is provided with a pin hole, the lock mold shaft is arranged through the fixed mold shell, the lock mold roller is arranged at the top end of the lock mold shaft and corresponds to the lock mold guide rail, the lock mold pin is fixedly arranged on the lock mold shaft and corresponds to the pin hole, the lock mold shaft can be raised and lowered on the fixed mold shell to drive the lock mold pin to be synchronously raised and lowered in the notch, when the mold is closed, the protrusion extends into the notch, the lock mold pin is inserted into the pin hole to lock the fixed mold shell and the movable mold shell. The lock mold shaft drives the lock mold pin to be vertically raised and lowered to drive the lock mold pin to be inserted into or pulled out of the pin hole to lock or unlock the mold.

[0006] Further, the valve assembly comprises a valve body, a valve rod, a gate, a feeding roller and a feeding guide rail, the valve body is fixedly arranged on the outer sidewall of the tundish, the nozzle sleeve is communicated with the valve body, one end of the valve rod is connected with the gate, the other end of the valve rod extends to the outside of the valve body and is connected with the feeding roller, a spring is sleeved on the valve rod, the feeding roller corresponds to the feeding guide rail, the gate is slidingly arranged in the valve body, and the gate has a first state of blocking the nozzle sleeve and a second state of opening the nozzle sleeve.

[0007] Further, the fixed mold shell and / or the movable mold shell is provided with an exhaust hole communicated to the die plate.

[0008] Further, the center shaft is rotatably arranged on the central axis in the device shell and extends to the outside of the device shell at the bottom end, a first gear is sleeved on the shaft outside the device shell, a second gear is arranged on the output shaft of the driving unit, the first gear and the second gear are engagedly connected, a swivel joint is arranged at the bottom end of the center shaft, a liquid supply ring and a liquid collecting ring are respectively sleeved on the center shaft, the fixed mold shell and the movable mold shell are respectively provided with a cooling liquid inlet pipe and a return pipe communicated with the cooling channel, the cooling liquid inlet pipe is communicated with the liquid supply ring, the return pipe is communicated with the liquid collecting ring, and corresponding interfaces of the swivel joint are respectively communicated to the liquid supply ring and the liquid collecting ring.

[0009] Further, a gas supply ring is sleeved on the center shaft, a blowing pipe is communicated on the gas supply ring, a blowing nozzle is arranged at the gas outlet end of the blowing pipe, the blowing direction of the blowing nozzle corresponds to the die plate inside the fixed mold shell and the movable mold shell after the mold is opened, and a corresponding interface of the swivel joint is communicated to the gas supply ring.

[0010] Further, an induction coil is sleeved on the nozzle sleeve, and the induction coil is electrically connected with the corresponding interface of the swivel joint.

[0011] Further, a third gear is sleeved on the shaft outside the device shell, a heat dissipation fan is arranged on the bottom surface of the device shell, the heat dissipation fan comprises a fan shell, a fan shaft and a fan blade, the fan shell is fixedly arranged on the bottom surface of the device shell, the air inlet end is located outside the device shell, the air outlet end is located inside the device shell, the fan shaft is rotatably arranged in the fan shell, the fan blade is sleeved on the fan shaft, a fourth gear is arranged at the bottom of the fan shaft, the third gear and the fourth gear are engagedly connected, a discharging guide plate is arranged in the device shell, a discharging port is arranged on the sidewall of the device shell corresponding to the discharging guide plate, and a plurality of ventilation holes are arranged on the discharging guide plate.

[0012] Further, the device housing and the top end of the tundish are both provided as open structures, and the upper cover is provided with a smoke collecting cover, the smoke collecting cover is communicated with a smoke guide pipe, and the smoke collecting cover is vertically provided with a long nozzle, the bottom end of the long nozzle extends to the inside of the tundish, and the top end of the long nozzle is communicated with an external ladle.

[0013] The application also provides a method for casting particles by using the manganese-iron alloy continuous casting device, which comprises the following steps: S1, starting the driving unit to drive the central shaft to rotate, and synchronously driving the tundish and the plurality of casting mold to rotate, which are connected to the central shaft; S2, the external cooling liquid flows through the rotary joint, the liquid supply ring, and then enters the cooling channels in the recessed die plates in the inside of the fixed mold shell and the movable mold shell through the cooling liquid inlet pipes, and then flows back to the liquid collecting ring through the backflow pipes and is discharged from the rotary joint to be recycled; S3, the manganese-iron alloy solution enters the tundish through the long nozzle, and the manganese-iron alloy solution is thrown into the nozzle sleeve under the action of centrifugal force, when the opening and closing mold roller of the casting mold rotates to the closing position in the opening and closing mold cam guide, the locking pin is inserted into the pin hole to lock the fixed mold shell and the movable mold shell, the recessed die plates are surrounded to form the mold cavity of the manganese-iron alloy particles, the feeding roller of the valve assembly is simultaneously rotated to the feeding guide, the gate is pulled up by the valve rod to open the nozzle sleeve, the manganese-iron alloy solution in the nozzle sleeve is poured into the mold cavity surrounded by the two recessed die plates and exchanges heat with the cooling liquid flowing in the cooling channels, when the feeding roller rotates out of the feeding guide, the valve rod drives the gate to block the nozzle sleeve under the restoring force of the spring, the manganese-iron alloy solution continues to rotate with the casting mold and is cooled and solidified into solid particles; when the opening and closing mold roller of the casting mold rotates to the opening position in the opening and closing mold cam guide, the locking roller of the locking mechanism also synchronously rotates to the locking guide, the locking shaft drives the locking pin to pull out of the pin hole to be unlocked, the opening and closing mold roller drives the swing arm to rotate, the swing arm drives the rotating shaft and the movable mold shell to rotate to open the mold, after the mold is opened, the solidified manganese-iron alloy particles are thrown out and fall on the discharging guide plate under the action of centrifugal force, the casting mold continues to rotate to repeat the casting work, and the manganese-iron alloy particles are guided out of the device housing along the discharging guide plate to realize the continuous casting of the manganese-iron alloy; S4, during the process that the manganese-iron alloy particles are thrown out, the cooling fan on the bottom surface of the device housing blows the external cold air upward into the inside of the device housing to further cool the thrown manganese-iron alloy particles; S5, the smoke generated during the casting process is discharged from the top end of the device housing and is collected by the smoke collecting cover, and is guided to the external smoke purification treatment equipment through the smoke guide pipe to be treated.

[0014] The beneficial effects of the present application include: the center shaft, the intermediate ladle, the valve assembly and the plurality of casting dies are synchronously rotated by the driving unit, when the open-close mold roller of the casting die rotates into the closed mold position on the open-close mold cam rail, the recessed mold plate on the fixed mold shell and the movable mold shell are closed to form a casting cavity, the manganese-iron alloy solution in the intermediate ladle is injected into the casting cavity along the nozzle sleeve under the action of centrifugal force, at the same time, the cooling liquid in the cooling channel exchanges heat with the manganese-iron alloy solution in the casting cavity to be cooled and solidified into solid particles, when the open-close mold roller of the casting die rotates into the open mold position on the open-close mold cam rail, the open-close mold roller drives the swing arm to rotate, the swing arm drives the rotating shaft and the movable mold shell to rotate to open the mold, the manganese-iron alloy particles in the recessed mold plate are thrown out under the action of centrifugal force, then the movable mold shell is closed again to perform the next round of casting work, realizing continuous casting, when it is needed to change the volume or shape of the manganese-iron alloy particles, only the recessed mold plate needs to be replaced, compared with the existing method of adopting traditional mold casting + mechanical crushing or manual crushing, the manganese-iron alloy particles produced by the method of casting by the manganese-iron alloy continuous casting device of the present application are basically not pulverized, the pollution to the environment is small, the particle uniformity is high, the particle size of the manganese-iron alloy particles is convenient to change, and the production efficiency is high. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is the installation schematic diagram of the intermediate ladle, the center shaft, the driving unit, the casting die and the nozzle sleeve in the embodiment of the present application.

[0016] Figure 2 is the connection schematic diagram of the liquid supply ring, the liquid collecting ring and the gas supply ring in the embodiment of the present application.

[0017] Figure 3 is the schematic diagram of the open mold state of the casting die in the embodiment of the present application.

[0018] Figure 4 is the schematic diagram of the closed mold state of the casting die in the embodiment of the present application.

[0019] Figure 5 is the schematic diagram of the valve assembly in the embodiment of the present application.

[0020] Figure 6 is the overall schematic diagram of the manganese-iron alloy continuous casting device in the embodiment of the present application.

[0021] Figure 7 is the schematic diagram of the device shell after being cut in the embodiment of the present application.

[0022] Reference: 1 tundish; 2 center shaft; 201 first gear; 202 rotary joint; 203 liquid supply ring; 204 liquid collecting ring; 205 gas supply ring; 206 gas blowing pipe; 207 gas blowing nozzle; 208 third gear; 3 valve assembly; 301 valve body; 302 valve stem; 303 gate; 304 feeding roller; 305 feeding guide rail; 306 spring; 4 driving unit; 401 second gear; 5 pelletizing mold; 501 mold frame; 502 fixed mold shell; 503 movable mold shell; 504 mold opening and closing cam guide rail; 505 rotating shaft; 506 die plate; 507 swing arm; 508 mold opening and closing roller; 509 locking shaft; 510 locking pin; 511 locking guide rail; 512 locking roller; 513 notch; 514 protrusion; 515 pin hole; 516 exhaust hole; 517 cooling liquid inlet pipe; 518 return pipe; 6 nozzle sleeve; 7 device housing; 701 discharge guide plate; 702 discharge port; 703 ventilation hole; 8 cooling fan; 801 fan housing; 802 fan shaft; 803 fan blade; 804 fourth gear; 9 fume hood; 10 fume duct; 11 long nozzle. DETAILED DESCRIPTION

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

[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 fixing or for circuit communication.

[0025] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the embodiments of the present application and simplify the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0026] Furthermore, the terms "first", "second", etc. are used only for descriptive purposes and do not connote or imply relative importance or a quantity of the indicated technical features. Thus, features defined with "first", "second" etc. can include one or more of the features implicitly or explicitly. In the description of embodiments of the present application, the meaning of "a plurality" is two or more, unless explicitly specified otherwise.

[0027] Example 1

[0028] See Figures 1 to 7The manganese-iron alloy continuous casting device disclosed by the application comprises a tundish 1, a central shaft 2, a valve assembly 3, a driving unit 4 and a plurality of casting grain molds 5. The central shaft 2 is rotatably arranged on the central axis in the device housing 7 and extends to the outside of the device housing 7 at the bottom end. A first gear 201 is fixedly arranged on the shaft outside the device housing 7. A second gear 401 is arranged on the output shaft of the driving unit 4. The first gear 201 and the second gear 401 are in meshing connection. The driving unit 4 is preferably a motor. The central shaft 2 is driven to rotate by the motor. The tundish 1 is fixedly arranged at the top end of the central shaft 2. A plurality of nozzle sleeves 6 are arranged on the side wall of the tundish 1 in the circumferential direction and are in communication with the inside of the tundish 1. The valve assembly 3 is arranged on the nozzle sleeve 6 and is used for controlling the opening and closing of the inside of the nozzle sleeve 6. A plurality of casting grain molds 5 are arranged on the outer wall of the central shaft 2 in a surrounding and uniform manner. The number of the casting grain molds 5 corresponds to the number of the valve assembly 3. The outlet end of the nozzle sleeve 6 is in communication with the inner cavity of the casting grain mold 5, so that the manganese-iron alloy solution in the nozzle sleeve 6 can enter the casting grain mold 5 to be cooled and cast. The casting grain mold 5 comprises a mold frame 501, a fixed mold shell 502, a movable mold shell 503 and an opening and closing mold cam guide 504. The mold frame 501 is horizontally fixedly arranged on the outer circumference of the central shaft 2. The fixed mold shell 502 is fixed between the two mold frames 501. The movable mold shell 503 is rotatably arranged between the two mold frames 501 through a rotating shaft 505. The recessed mold plate 506 is detachably arranged on the fixed mold shell 502 and the movable mold shell 503. When the movable mold shell 503 is rotated to be combined with the fixed mold shell 502, the two recessed mold plates 506 form a mold cavity for manganese-iron alloy casting. A cooling channel (not shown in the figure) is arranged in the recessed mold plate 506. Cooling liquid entering from the outside is communicated in the cooling channel. Specifically, a rotary joint 202 is arranged at the bottom end of the central shaft 2. A liquid supply ring 203 and a liquid collecting ring 204 are respectively sleeved on the central shaft 2. The fixed mold shell 502 and the movable mold shell 503 are respectively provided with a cooling liquid inlet pipe 517 and a backflow pipe 518 which are in communication with the cooling channel. The cooling liquid inlet pipe 517 is in communication with the liquid supply ring 203. The backflow pipe 518 is in communication with the liquid collecting ring 204. Corresponding interfaces on the rotary joint 202 are respectively communicated to the liquid supply ring 203 and the liquid collecting ring 204. External cooling liquid enters the cooling channel through the rotary joint 202, the liquid supply ring 203 and the cooling liquid inlet pipe 517 to exchange heat. After heat exchange, the generated hot medium is discharged to the outside of the manganese-iron alloy continuous casting device through the backflow pipe 518, the liquid collecting ring 204 and the rotary joint 202, so that the heat of the heat-exchanged hot medium can be recycled and used.The rotating shaft 505 extends downward through the mold frame 501, and a swing arm 507 is horizontally fixed at the bottom end of the rotating shaft 505. An open-close mold roller 508 corresponding to the open-close mold cam guide rail 504 is arranged at the free end of the swing arm 507. Specifically, after the fixed mold shell 502 and the movable mold shell 503 are closed, the mold plate 506 forms a manganese-iron alloy particle forming cavity, and the fixed mold shell 502, the movable mold shell 503 and the mold plate 506 are provided with a gap for the water nozzle sleeve 6 to inject the manganese-iron alloy solution into the cavity. The fixed mold shell 502 and / or the movable mold shell 503 are provided with an exhaust hole 516 connected to the mold plate 506, so that when the water nozzle sleeve 6 injects the manganese-iron alloy solution into the cavity formed by the mold plate 506, the air in the cavity can be discharged from the exhaust hole 516, which is beneficial to the injection of the manganese-iron alloy solution into the cavity. The open-close mold cam guide rail 504 is horizontally fixed on the inner wall of the device shell 7. In this embodiment, the intermediate ladle 1, the valve assembly 3 and the particle mold 5 are synchronously rotated by driving the central shaft 2 to rotate by the driving unit 4. When the open-close mold roller 508 of the particle mold 5 rotates to the closed mold position in the open-close mold cam guide rail 504, the mold plate 506 on the fixed mold shell 502 and the movable mold shell 503 is closed to form a particle forming cavity. When the intermediate ladle 1 rotates, the manganese-iron alloy solution in the intermediate ladle 1 is injected into the particle forming cavity through the water nozzle sleeve 6 under the action of centrifugal force. At the same time, the cooling liquid in the cooling channel exchanges heat with the manganese-iron alloy solution in the particle forming cavity. The manganese-iron alloy solution is cooled and solidified into a solid particle. When the open-close mold roller 508 of the particle mold 5 rotates to the open mold position in the open-close mold cam guide rail 504, the swing arm 507 is rotated by the open-close mold roller 508, and the rotating shaft 505 and the movable mold shell 503 are rotated to open the mold. The manganese-iron alloy particle in the mold plate 506 is thrown out under the action of centrifugal force, and then the movable mold shell 503 is closed again to perform the next round of particle casting. The manganese-iron alloy particle casting device can realize continuous casting. When the volume or shape of the manganese-iron alloy particle needs to be changed, the mold plate 506 on the fixed mold shell 502 and the movable mold shell 503 can be replaced. Compared with the existing method of traditional mold casting + mechanical crushing or manual crushing, the manganese-iron alloy particle produced by the manganese-iron alloy continuous casting device has little powdering, little environmental pollution, high particle uniformity, and the particle size of the manganese-iron alloy particle can be easily changed, and the production efficiency is high.

[0029] Embodiment 2

[0030] See Figure 3, in order to make the movable mold shell 503 and the fixed mold shell 502 in the mold can be automatically locked, the mold can be automatically unlocked, the embodiment increases the locking shaft 509, the locking pin 510, the locking guide rail 511 and the locking roller 512 on the basis of the embodiment 1, the fixed mold shell 502 and the movable mold shell 503 are locked by inserting the locking pin 510 into the pin hole 515, in the embodiment, the pelletizing mold 5 also includes the locking shaft 509, the locking pin 510, the locking guide rail 511 and the locking roller 512, at least one notch 513 is provided on the fixed mold shell 502, the protrusion 514 corresponding to the notch 513 is provided on the movable mold shell 503, the pin hole 515 is vertically provided on the protrusion 514, the locking shaft 509 vertically penetrates the inside of the fixed mold shell 502, the locking roller 512 is provided at the top of the locking shaft 509 and corresponds to the locking guide rail 511, the locking guide rail 511 is fixed in the device shell 7, the locking pin 510 is fixedly provided on the locking shaft 509 and corresponds to the pin hole 515, the locking shaft 509 can be raised and lowered on the fixed mold shell 502 and further drive the locking pin 510 to be synchronously raised and lowered in the notch 513, specifically, the locking shaft 509 is sleeved with a tension spring (the figure shows), when the mold is closed, the protrusion 514 extends into the notch 513, the locking shaft 509 is pulled and moved under the action of the tension spring, the locking pin 510 is inserted into the pin hole 515, so that the fixed mold shell 502 and the movable mold shell 503 are locked, when the mold is opened, the locking roller 512 is rotated and rolled onto the locking guide rail 511, the locking shaft 509 overcomes the tension spring and rises, drives the locking pin 510 to be pulled out from the pin hole 515, and the mold can be opened, so that the automatic locking and unlocking of the pelletizing mold 5 are realized.

[0031] Embodiment 3

[0032] Please refer to Figure 5In order to automatically control the manganese-iron alloy solution in the water jacket 6 to enter the granulation mold 5 for cooling and granulation, the preferred embodiment of the valve assembly 3 is provided in the embodiment, which is more suitable for closing or opening the water jacket 6 in a high-temperature environment on the basis of the embodiment 1. In the embodiment, the valve assembly 3 comprises a valve body 301, a valve rod 302, a gate plate 303, a feeding roller 304 and a feeding guide rail 305. The valve body 301 is fixedly arranged on the outer side wall of the tundish 1, and the water jacket 6 is communicated with the valve body 301. The valve rod 302 is vertically movably arranged on the valve body 301, and one end of the valve rod 302 is connected with the gate plate 303. The other end of the valve rod 302 extends to the outside of the valve body 301 and is rotatably connected with the feeding roller 304. A spring 306 is sleeved on the valve rod 302. The spring 306 pulls down the valve rod 302, so that the gate plate 303 moves downward to block the water jacket 6. The feeding roller 304 corresponds to the feeding guide rail 305, and the feeding guide rail 305 is fixedly arranged in the device housing 7. The gate plate 303 is slidably arranged in the valve body 301. The gate plate 303 has a first state of blocking the water jacket 6 and a second state of opening the water jacket 6. In the embodiment, the spring 306 pulls down the valve rod 302, so that the gate plate 303 moves downward to block the water jacket 6, that is, the valve assembly 3 is a normally closed valve. After the granulation mold 5 is completed, the feeding roller 304 rotates into the feeding guide rail 305, the valve rod 302 is lifted, the gate plate 303 is synchronously lifted to the second state of opening the water jacket 6, and in the continuous rotation process, the manganese-iron alloy solution in the water jacket 6 is thrown out from the outlet end to enter the granulation mold 5 under the action of centrifugal force. After the feeding roller 304 leaves the feeding guide rail 305, the spring 306 pulls down the valve rod 302, and the gate plate 303 is in the first state of blocking the water jacket 6. The amount of the manganese-iron alloy solution entering the granulation mold 5 for granulation can be adjusted by adjusting the rotating speed of the central shaft 2 or the formation of the feeding guide rail 305.

[0033] Embodiment 4

[0034] Please refer to Figure 2 and Figure 3, in order to avoid the solidified ferromanganese particles sticking to the die plate 506 after the opening of the die mold 5, the embodiment increases the air supply ring 205, the air blowing pipe 206 and the air blowing nozzle 207 on the basis of the embodiment 1, and blows off the ferromanganese particles by introducing compressed air; the air supply ring 205 is sleeved on the central shaft 2, the air blowing pipe 206 is communicated on the air supply ring 205, the air blowing nozzle 207 is arranged at the air outlet end of the air blowing pipe 206, the air blowing direction of the air blowing nozzle 207 corresponds to the die plate 506 inside the fixed mold shell 502 and the movable mold shell 503 after the opening, and the corresponding interface on the rotary joint 202 is communicated to the air supply ring 205. The external compressed air enters along the rotary joint 202, the air supply ring 205 and the air blowing pipe 206, and is sprayed out from the air blowing nozzle 207, blows on the die plate 506 inside the fixed mold shell 502 and the movable mold shell 503 after the opening, blows off the ferromanganese particles sticking thereto, and the blown compressed air can further air cool the ferromanganese particles.

[0035] Embodiment 5

[0036] Please refer to Figure 1 and Figure 5 , in order to avoid the ferromanganese solution in the water nozzle sleeve 6 from solidifying in the water nozzle sleeve 6 to cause blockage, the embodiment increases the induction coil 601 on the basis of the above-mentioned embodiments 1 to 4, and the induction coil 601 is used to heat the ferromanganese solution in the water nozzle sleeve 6 in real time to avoid the temperature reduction; the induction coil 601 is sleeved on the water nozzle sleeve 6, the induction coil 601 is electrically connected with the corresponding interface on the rotary joint 202, the external high-frequency power supply is electrically connected with the induction coil 601 through the rotary joint 202, and the heating on the water nozzle sleeve 6 is realized, the rotary joint 202 adopts the existing gas-liquid-electric integrated rotary joint, and it is ensured that the external cooling liquid, compressed air and high-frequency power supply can be conducted to the corresponding positions.

[0037] Embodiment 6

[0038] Please refer to Figure 1 , Figure 2 and Figure 7, in order to further increase the cooling effect of the manganese iron alloy particles, the embodiment increases the cooling fan 8 to cool the manganese iron alloy particles after being thrown out; in this embodiment, a third gear 208 is sleeved on the shaft outside the device housing 7, and a cooling fan 8 is arranged on the bottom surface of the device housing 7. The cooling fan 8 includes a fan shell 801, a fan shaft 802 and a fan blade 803. The fan shell 801 is fixedly arranged on the bottom surface of the device housing 7, and the air inlet end is located outside the device housing 7, and the air outlet end is located inside the device housing 7. The fan shaft 802 is rotatably arranged in the fan shell 801, and the fan blade 803 is sleeved on the fan shaft 802. The bottom of the fan shaft 802 is provided with a fourth gear 804, and the third gear 208 and the fourth gear 804 are engaged. An outlet guide plate 701 is arranged in the device housing 7 and inclined to the outer side wall. The outlet guide plate 701 is in the form of an L-shaped structure inclined to the outside of the device housing 7. An outlet 702 is formed in the side wall of the device housing 7 corresponding to the outlet guide plate 701. A plurality of ventilation holes 703 are formed in the outlet guide plate 701. When the driving unit 4 drives the central shaft 2 to rotate, the fan blade 803 can be driven to rotate synchronously. The fan blade 803 blows the cold air outside the device housing 7 upwards. The cold air passes through the ventilation holes 703 and exchanges heat with the thrown manganese iron alloy particles to further increase the cooling effect of the manganese iron alloy particles and avoid the manganese iron alloy particles sticking to the outlet guide plate 701 after being thrown out due to insufficient cooling. Moreover, the working of the cooling fan 8 borrows the power of the driving unit 4, so that new power equipment is not needed, and the cost is effectively saved.

[0039] Embodiment 7

[0040] Please refer to Figure 6 and Figure 7 , in order to avoid the smoke pollution of the working environment during the casting process, the embodiment increases the smoke hood 9 based on the above-mentioned embodiment. In this embodiment, the top end of the device housing 7 and the tundish 1 are both in the form of an open structure, and a smoke hood 9 is arranged above. The smoke hood 9 is connected with a smoke pipe 10. The smoke pipe 10 is connected with an external smoke purification treatment equipment. The generated smoke is purified before being discharged. A long nozzle 11 is vertically arranged on the device smoke hood 9. The bottom end of the long nozzle 11 extends into the tundish 1. The top end of the long nozzle 11 is connected with an external ladle.

[0041] Embodiment 8

[0042] Please refer to Figures 1 to 7 , the manganese iron alloy continuous casting method disclosed in the embodiment is cast by the manganese iron alloy continuous casting device in the above-mentioned embodiment, which includes the following steps:

[0043] S1, start the driving unit 4, drive the center shaft 2 to rotate, the intermediate ladle 1 and several casting particle molds 5 connected to the center shaft 2 rotate synchronously; S2, the external cooling liquid flows through the rotary joint 202, the liquid supply ring 203, and then enters the cooling channel in the recessed die plate 506 inside the fixed die shell 502 and the movable die shell 503 through the cooling liquid inlet pipe 517, exchanges heat after heat exchange, flows back to the liquid collection ring 204 through the backflow pipe 518, and flows out from the rotary joint 202 for recycling, at the same time, the induction coil 601 is powered on to heat the manganese-iron alloy solution in the water nozzle sleeve 6 to avoid solidification and blockage; S3, the manganese-iron alloy solution enters the intermediate ladle 1 through the long water nozzle 11, and the manganese-iron alloy solution is thrown into the water nozzle sleeve 6 under the action of centrifugal force, when the mold opening and closing roller 508 of the casting particle mold 5 rotates into the mold closing position in the mold opening and closing cam guide 504, the mold locking pin 510 is inserted into the pin hole 515 to lock the fixed die shell 502 and the movable die shell 503, the internal recessed die plate 506 is surrounded to form the mold cavity of the manganese-iron alloy casting particle, the feeding roller 304 of the valve assembly 3 rotates to the feeding guide 305 at the same time, the gate 303 is pulled up to open the water nozzle sleeve 6 through the valve rod 302, the manganese-iron alloy solution in the water nozzle sleeve 6 is injected into the mold cavity surrounded by the two recessed die plates 506 and exchanges heat with the cooling liquid flowing in the cooling channel, when the feeding roller 304 rotates out of the feeding guide 305, the valve rod 302 drives the gate 303 to block the water nozzle sleeve 6 under the restoring force of the spring 306, the manganese-iron alloy solution continues to rotate with the casting particle mold 5 and cools and solidifies into solid particles; when the mold opening and closing roller 508 of the casting particle mold 5 rotates into the mold opening position in the mold opening and closing cam guide 504, the mold locking roller 512 of the mold locking mechanism also rotates into the mold locking guide 511 synchronously, the mold locking shaft 509 drives the mold locking pin 510 to pull out of the pin hole 515 to unlock, the mold opening and closing roller 508 drives the swing arm 507 to rotate, the swing arm 507 drives the rotating shaft 505 and the movable die shell 503 to rotate to open the mold, after the mold is opened, the solidified manganese-iron alloy particles are thrown out and fall onto the discharge guide plate 701 under the action of centrifugal force, at the same time, the air blowing nozzle 207 blows out compressed air to blow out the manganese-iron alloy particles, avoid their residues sticking to the recessed die plate 506, and further cool the manganese-iron alloy particles, the casting particle mold 5 continues to rotate to repeat the casting particle work, and the manganese-iron alloy particles are guided out of the device shell 7 to the outside of the device shell 7 along the discharge guide plate 701, realizing the continuous casting of manganese-iron alloy;

[0044] S4, during the process of throwing out and falling onto the discharge guide plate 701, the cooling fan 8 on the bottom surface of the device shell 7 blows the external cool air upward into the inside of the device shell 7 to cool the thrown manganese-iron alloy particles, further improving the cooling effect; S5, the smoke generated during the casting process is discharged from the top end of the device shell 7 and collected by the smoke hood 9, and is introduced to the external smoke purification treatment equipment through the smoke pipe 10 for treatment.

[0045] The above further describes the present application in connection with specific / preferred embodiments, and cannot be deemed to limit the specific implementation of the present application to these descriptions. For those skilled in the art to which the present application belongs, without departing from the concept of the present application, they can make several substitutions or variations to the described embodiments, and these substitutions or variations shall be deemed to fall within the protection scope of the present application. In the description of the present application, the description of the terms "an embodiment", "some embodiments", "a preferred embodiment", "an example", "a specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does 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. Those skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction. Although the embodiments of the present application and their advantages have been described in detail, it should be understood that various changes, substitutions and modifications can be made herein without departing from the scope of the patent application.

Claims

1. A continuous casting process for ferromanganese alloy, characterized by: The application relates to a manganese-iron alloy continuous casting device for casting particles, which comprises an intermediate ladle, a central shaft, a valve assembly, a driving unit and a plurality of casting particle molds, the output end of the driving unit is connected with the central shaft, the intermediate ladle is fixedly arranged at the top end of the central shaft, the side wall of the intermediate ladle is uniformly distributed with a plurality of water nozzle sleeves which are connected with the inside of the intermediate ladle in the circumferential direction, the valve assembly is arranged on the water nozzle sleeve, a plurality of the casting particle molds are uniformly distributed on the outer wall of the central shaft, the outlet end of the water nozzle sleeve is connected with the inner cavity of the casting particle mold, the casting particle mold comprises a mold frame, a fixed mold shell, a movable mold shell and an open-close mold cam guide rail, the mold frame is fixedly arranged on the central shaft, the fixed mold shell is fixed on the mold frame, the movable mold shell is rotatably arranged on the mold frame through a rotating shaft, the fixed mold shell and the movable mold shell are detachably provided with a female die plate, the female die plate is internally provided with a cooling channel, the rotating shaft extends downwards through the mold frame, the bottom end of the rotating shaft is fixedly provided with a swing arm, the free end of the swing arm is provided with an open-close mold roller which corresponds to the open-close mold cam guide rail; the casting particle mold further comprises a locking shaft, a locking pin, a locking guide rail and a locking roller, at least one notch is arranged on the fixed mold shell, a protrusion corresponding to the notch is arranged on the movable mold shell, a pin hole is arranged on the protrusion, the locking shaft is arranged through the fixed mold shell, the locking roller is arranged at the top end of the locking shaft and corresponds to the locking guide rail, the locking pin is fixedly arranged on the locking shaft and corresponds to the pin hole, the locking shaft can be raised and lowered on the fixed mold shell, thereby driving the locking pin to be synchronously raised and lowered in the notch; the central shaft is rotatably arranged on the central axis in the device shell and extends to the outside of the device shell at the bottom end, the bottom end of the central shaft is provided with a rotary joint, a liquid supply ring and a liquid collecting ring are respectively sleeved on the central shaft, the fixed mold shell and the movable mold shell are respectively provided with a cooling liquid inlet pipe and a return pipe which are connected with the cooling channel, the cooling liquid inlet pipe is connected with the liquid supply ring, the return pipe is connected with the liquid collecting ring, and the corresponding interfaces on the rotary joint are respectively connected to the liquid supply ring and the liquid collecting ring; a gas supply ring is sleeved on the central shaft, a gas blowing pipe is connected with the gas supply ring, a gas blowing nozzle is arranged at the gas outlet end of the gas blowing pipe, the gas blowing direction of the gas blowing nozzle corresponds to the female die plate inside the fixed mold shell and the movable mold shell after the mold is opened, and the corresponding interface on the rotary joint is connected to the gas supply ring.The third gear is sleeved on the shaft outside the device shell, a heat dissipation fan is arranged on the bottom surface of the device shell, the heat dissipation fan comprises a fan shell, a fan shaft and a fan blade, the fan shell is fixedly arranged on the bottom surface of the device shell, an air inlet end of the fan shell is located outside the device shell, an air outlet end of the fan shell is located inside the device shell, the fan shaft is rotatably arranged in the fan shell, the fan blade is sleeved on the fan shaft, a fourth gear is arranged at the bottom of the fan shaft, the third gear and the fourth gear are in meshing connection, a discharging guide plate is arranged in the device shell, a discharging port is formed in the side wall of the device shell corresponding to the discharging guide plate, and a plurality of ventilation holes are formed in the discharging guide plate. The manganese-iron alloy continuous casting method using the manganese-iron alloy continuous casting device comprises the following steps: S1, the driving unit is started to drive the central shaft to rotate, and the intermediate ladle and the plurality of casting grain molds connected to the central shaft rotate synchronously; S2, the external cooling liquid flows through the rotary joint, the liquid supply ring, and then enters the cooling channels in the recessed mold plates through the cooling liquid inlet pipes for heat exchange, and then flows back to the liquid collecting ring through the return pipes and flows out of the rotary joint for recycling; S3, after the manganese-iron alloy solution enters the intermediate ladle, the manganese-iron alloy solution is thrown into the water nozzle sleeve under the action of centrifugal force, when the open-close mold roller rotates into the closed mold position in the open-close mold cam guide rail, the lock pin is inserted into the pin hole to lock the fixed mold shell and the movable mold shell, the internal recessed mold plate forms a mold cavity for manganese-iron alloy grain casting, the valve assembly opens the water nozzle sleeve, the manganese-iron alloy solution in the water nozzle sleeve is poured into the mold cavity formed by the two recessed mold plates under the action of centrifugal force and exchanges heat with the cooling liquid flowing in the cooling channels, and the manganese-iron alloy solution continues to rotate with the casting grain mold and cools and solidifies into solid particles; before the open-close mold roller rotates into the open mold position in the open-close mold cam guide rail, the lock roller rotates into the lock guide rail first, the lock shaft rises to pull out the lock pin from the pin hole to unlock, the open-close mold roller drives the swing arm to rotate, the swing arm drives the rotating shaft and the movable mold shell to rotate to open the mold, and the solidified manganese-iron alloy particles are thrown out under the action of centrifugal force after the mold is opened, at the same time, the external compressed air enters along the rotary joint, the air supply ring and the blowing pipe, and is sprayed from the blowing nozzle to blow the manganese-iron alloy particles adhered to the recessed mold plate, and the blown compressed air can further air cool the manganese-iron alloy particles to make the solidified manganese-iron alloy particles fall onto the discharge guide plate, the casting grain mold continues to rotate to repeat the next round of casting grain work, and the manganese-iron alloy particles are guided out of the device shell from the discharge port to realize continuous casting of manganese-iron alloy; S4, during the process of throwing out the manganese-iron alloy particles, the driving unit drives the central shaft to rotate, which can synchronously drive the fan blades of the cooling fan to rotate, the fan blades fan the cold air outside the device shell upwards, the cold air exchanges heat with the thrown manganese-iron alloy particles through the ventilation holes to further increase the cooling effect of the manganese-iron alloy particles.

2. The ferromanganese alloy continuous casting method as claimed in claim 1, characterized by: The valve assembly comprises a valve body, a valve rod, a shutter, a feeding roller and a feeding guide rail, the valve body is fixedly arranged on the outer sidewall of the tundish, the nozzle sleeve is communicated with the valve body, one end of the valve rod is connected with the shutter, the other end of the valve rod extends to the outside of the valve body and is connected with the feeding roller, a spring is sleeved on the valve rod, the feeding roller corresponds to the feeding guide rail, the shutter is slidingly arranged in the valve body, and the shutter has a first state of blocking the nozzle sleeve and a second state of opening the nozzle sleeve.

3. The ferromanganese alloy continuous casting method as claimed in claim 1, characterized by: The fixed mold shell and / or the movable mold shell is provided with an exhaust hole communicated into the die plate.

4. The ferromanganese alloy continuous casting method as claimed in claim 1, characterized by: The first gear is sleeved on the shaft outside the device shell, the second gear is arranged on the output shaft of the driving unit, and the first gear and the second gear are engagedly connected.

5. The ferromanganese alloy continuous casting method as claimed in claim 1, characterized by: The induction coil is sleeved on the nozzle sleeve, and the induction coil is electrically connected with the corresponding interface on the rotary joint.

6. The ferromanganese alloy continuous casting method as claimed in claim 1, characterized in that: The device shell and the top end of the tundish are both provided with an open structure, and the upper cover is provided with a smoke collecting cover, the smoke collecting cover is communicated with a smoke pipe, the smoke collecting cover is vertically provided with a long nozzle, the bottom end of the long nozzle extends to the inside of the tundish, and the top end of the long nozzle is communicated with an external ladle.

7. The ferromanganese alloy continuous casting method as claimed in claim 6, characterized in that: The manganese-iron alloy continuous casting method further comprises the following steps: S5, the smoke generated in the particle casting process is discharged from the top end of the device shell and collected by the smoke collecting cover, and is introduced to an external smoke purification treatment equipment through the smoke pipe for treatment.

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