CN117739672A - Vacuum induction smelting furnace and smelting method for producing high-purity metal - Google Patents

Abstract

The invention discloses a vacuum induction smelting furnace and a smelting method for producing high-purity metal, and relates to the technical field of metal smelting, wherein the vacuum induction smelting furnace comprises an alternate smelting mechanism, an automatic coil conversion mechanism, an intermittent discharging mechanism and an auxiliary mechanism; the alternate smelting mechanism comprises: the device comprises a side bracket, a supporting frame, a smelting furnace, a drainage port, a diversion trench and a center bracket; the two support frames are symmetrical, the outer sides of the support frames are rotatably arranged on the short shafts of the side supports, a smelting furnace is fixedly arranged in the support frames, a drainage port is fixedly welded on the smelting furnace, the drainage grooves are fixedly arranged on the two sides of the center support, and one part of the drainage port extends into the groove of the drainage groove; when the invention is used, the alternating smelting mode is adopted, the alternating heating of the double smelting furnaces is carried out under the same induction coil and the same power, and the other smelting furnace is heated during the dumping gap of the smelted smelting furnaces, so that the time gap is greatly utilized, and the production efficiency is greatly improved.

Description

Vacuum induction smelting furnace and smelting method for producing high-purity metal

Technical Field

The invention relates to the technical field of metal smelting, in particular to a vacuum induction smelting furnace and a smelting method for producing high-purity metal.

Background

Vacuum induction melting (Vacuuminduction melting, abbreviated as VIM) generates eddy currents during electromagnetic induction to melt metals. The process can be used to refine high purity metals and alloys. Mainly comprises vacuum induction furnace smelting, suspension smelting and cold crucible smelting;

the invention discloses an induction heating smelting furnace with the application number of CN201610891723.4, which comprises a movable frame, wherein an induction heating furnace is fixed at the top end of the movable frame, a mounting frame is fixed at the edge of the top end of the movable frame, a quartz tube is fixed on the mounting frame, a water-cooling flange is arranged at the top end of the quartz tube, an induction coil is sleeved on the peripheral side of the quartz tube, a graphite crucible is arranged in the quartz tube, and an insulating layer is arranged between the graphite crucible and the inner wall of the quartz tube;

when the invention is used, the smelting efficiency is lower, the smelted materials are required to be poured out after each smelting is completed, and when the molten slurry is poured, a certain amount of molten slurry can be poured outside to cause certain waste when the ingot cavity is switched; the invention is designed aiming at the defects, when the invention is used, the alternating smelting mode is adopted, the alternating heating of the double smelting furnaces is carried out under the same induction coil and the same power, and the other smelting furnace is heated during the pouring gap of the smelted smelting furnaces, so that the time gap is greatly utilized, and the production efficiency is greatly improved; when the casting ingot cavity is used, when molten slurry is poured, the control of the molten slurry can be realized when the casting ingot cavity is replaced, so that the casting ingot cavity is replaced, the outflow is stopped, and the molten slurry is completely poured into the casting ingot cavity, so that no waste is caused.

Disclosure of Invention

The technical scheme adopted by the invention is as follows: a vacuum induction smelting furnace and a smelting method for producing high-purity metal comprise an alternate smelting mechanism, an automatic coil conversion mechanism, an intermittent discharging mechanism and an auxiliary mechanism; the alternate smelting mechanism comprises: the device comprises a side bracket, a supporting frame, a smelting furnace, a drainage port, a diversion trench and a center bracket; the two support frames are symmetrical, the outer sides of the support frames are rotatably arranged on the short shafts of the side supports, a smelting furnace is fixedly arranged in the support frames, a drainage port is fixedly welded on the smelting furnace, the drainage grooves are fixedly arranged on the two sides of the center support frame, and one part of the drainage port extends into the groove of the drainage groove.

Preferably, the alternate smelting mechanism further comprises: the device comprises a supporting plate, a worm wheel, a worm, a driven gear, a transmission shaft, a driving gear, a stepping motor I and a cylinder I; the support plate is fixedly welded with the central support, the two sides of the support plate are rotatably provided with short shafts which are fixedly connected with the support frame, the short shafts on the two sides of the support plate are fixedly provided with two worm gears which are meshed with the worm, the number of the worm gears is consistent with that of the worm gears, the two ends of the worm gears are rotatably arranged in round holes of the extension plate on the support plate, the two worm gears are fixedly provided with driven gears, and the positions of the two driven gears are staggered; the transmission shaft is movably arranged in a round hole in the supporting plate, a gear with a wider width is arranged in the middle of the transmission shaft, the gear is meshed with a motor gear of the stepping motor I, the stepping motor I is fixedly arranged on the supporting plate, one end of the transmission shaft is fixedly provided with a driving gear, and the driving gear can be meshed with one of the two driven gears; the cylinder body fixed mounting of cylinder I is on the extension board in the backup pad, and the piston rod of cylinder I and the one end fixed connection of transmission shaft.

Preferably, the coil automation mechanism includes: the device comprises a bottom bracket, a sliding rail, a screw rod I, a sliding block, a stepping motor II, a moving bracket, a screw rod II, a vertical sliding frame, a stepping motor III and a coil module; the sliding rail is fixedly arranged between the bottom brackets, a sliding block is slidably arranged on the sliding rail and is in threaded connection with the screw rod I, two ends of the screw rod I are rotatably arranged in rotating holes on the bottom brackets, a gear at one end of the screw rod I is meshed with a motor gear of the stepping motor II, and the stepping motor II is fixedly arranged on the bottom brackets; a movable bracket is fixedly welded on the sliding block and is in sliding connection with the vertical sliding frame; the upper end of the screw rod II is rotatably arranged in a rotating hole at the upper end of the movable support, the lower end of the screw rod II is rotatably arranged in a rotating hole on the sliding block, the lower end of the screw rod II is fixedly connected with a motor shaft of the stepping motor III, the stepping motor III is fixedly arranged below the sliding block, and meanwhile, the screw rod II is in threaded connection with the middle of the vertical sliding frame.

Preferably, the coil module includes: the device comprises a power supply module, an electromagnetic coil, a stable bracket and a fastening plate; the power supply module is fixedly connected with the vertical sliding frame, the wiring end of the electromagnetic coil is connected into the power supply module, the power supply module is connected with the fastening plate through the stable support, and the fastening plate is fixedly installed on the electromagnetic coil in a penetrating mode.

Preferably, the intermittent discharging mechanism comprises: the device comprises a door-shaped bracket, a cylinder II, a flow limiting rod, a flow collecting groove, an intermittent assembly and a sliding assembly; the cylinder body of the cylinder II is fixedly arranged on the portal support, a piston rod of the cylinder II is fixedly connected with the current limiting rod, short rods on extension shifts at two sides of the current limiting rod are slidably arranged in round holes on the portal support, the current collecting groove is fixedly arranged on a support column at the lower end of the center support, and meanwhile the center support is fixedly connected with the portal support.

Preferably, the intermittent assembly comprises: the ingot casting barrel, the ingot casting container, the semi-gear, the stepping motor IV and the small bracket; a plurality of ingot casting containers are arranged on the ingot casting barrel, positive teeth are arranged on the side face of the ingot casting barrel and are meshed with the half gears intermittently, the half gears are fixedly arranged on a motor shaft of a stepping motor IV, and the stepping motor IV is fixedly arranged on the small support.

Preferably, the sliding assembly includes: the support plate, the door plate and the horizontal sliding frame; the supporting plate is fixedly connected with the ingot barrel, the door plate is fixedly welded on the supporting plate, a sealing ring is arranged on one circle of the periphery of the door plate, and the supporting plate is further slidably arranged on the horizontal sliding frame.

Preferably, the auxiliary mechanism comprises: the shell, the vacuum pipeline, the vacuum pump, the cover plate and the cylinder III; the bottom plate in the shell is fixedly connected with the lower ends of the side brackets, the bottom bracket, the door-shaped bracket, the small bracket and the horizontal sliding frame; the vacuum pipeline is fixedly connected to the side surface of the shell, and the vacuum pump is fixedly arranged on the vacuum pipeline; the apron slidable mounting is on the spout on the shell, and apron and cylinder III's piston rod fixed connection, cylinder III's cylinder body fixed mounting are on the shell.

The invention also provides a vacuum induction smelting method for producing high-purity metal, which comprises the following steps:

s1: feeding, wherein the two cylinders III drive the cover plates to be opened, and the cover plates are butted with an external feeding mechanism to feed, so that raw materials are poured into two melting furnaces, the cover plates are closed, and a vacuum pump is started to vacuumize the interior of the shell;

s2: the method comprises the steps of alternately smelting, starting a stepping motor II and a stepping motor III, driving a screw rod I and a screw rod II to rotate, driving a sliding block and a vertical sliding frame to horizontally and vertically slide, driving an electromagnetic coil to move to the outer side of one smelting furnace, smelting raw materials in the smelting furnace, pouring out internal molten slurry from the smelting furnace after smelting, and driving the electromagnetic coil to move to the outer side of the other smelting furnace in a poured gap to smelt raw materials in the other smelting furnace, so that the smelting continuity is ensured;

s3: the smelting and discharging are carried out, the smelted smelting furnace pours out internal molten slurry, the cylinder I is started to drive the transmission shaft to slide, so that the driving gear is meshed with the driven gear at the smelted end, then the stepping motor I is started to drive the transmission shaft to rotate, so that the meshed driven gear is driven to rotate, the worm wheel is driven to rotate, the support frame is driven to rotate, so that the smelting furnace tilts, the drainage port on the smelting furnace moves in the diversion trench, and molten slurry is poured out and flows to the collection trench in the diversion trench;

s4: intermittent pouring is carried out, a stepping motor IV starts to drive a half gear to rotate, the half gear drives an ingot barrel to rotate one lattice each time, molten slurry in a collecting groove flows down into an ingot container, after one ingot container is full, a cylinder II starts to drive a flow limiting rod to move downwards, so that the flow limiting rod temporarily blocks a lower flow port of the collecting groove, meanwhile, the half gear continues to drive the ingot barrel to rotate one lattice, the flow limiting rod is driven to lift downwards, and the next ingot container is continuously poured until the whole pouring position is reached;

s5: replacing the ingot container, pulling out the filled ingot container by pulling the door plate, replacing the ingot container with an empty ingot container, pushing the ingot container into the shell again, continuing smelting, and vacuumizing again after pulling out and pushing, wherein when feeding is performed alternately, vacuumizing again after feeding is performed.

Compared with the prior art, the invention has the beneficial effects that:

(1) When the invention is used, the alternating smelting mode is adopted, the alternating heating of the double smelting furnaces is carried out under the same induction coil and the same power, and the other smelting furnace is heated during the dumping gap of the smelted smelting furnaces, so that the time gap is greatly utilized, and the production efficiency is greatly improved.

(2) When the casting ingot cavity is used, when molten slurry is poured, the control of the molten slurry can be realized when the casting ingot cavity is replaced, so that the casting ingot cavity is replaced, the outflow is stopped, and the molten slurry is completely poured into the casting ingot cavity, so that no waste is caused.

Drawings

Figure 1 is an isometric view of the overall structure of the present invention.

Figure 2 is an interior isometric view of the overall structure of the present invention.

Fig. 3 is an interior elevation view of the overall structure of the present invention.

Fig. 4 is a first perspective view of the alternate smelting mechanism of the present invention.

Fig. 5 is a second perspective view of the alternate smelting mechanism of the present invention.

FIG. 6 is a detailed view of a support frame of the alternative smelting mechanism of the present invention.

FIG. 7 is a top view of the alternate smelting mechanism of the present invention.

Fig. 8 is an isometric view of an automatic coil transfer mechanism of the present invention.

Fig. 9 is a detailed view of the coil automatic transfer mechanism of the present invention.

Fig. 10 is an isometric view of an intermittent discharge mechanism of the present invention.

Fig. 11 is a schematic structural view of the auxiliary mechanism of the present invention.

Reference numerals: 1. a side bracket; 2. a support frame; 3. a melting furnace; 4. a drainage port; 5. a diversion trench; 6. a center support; 7. a support plate; 8. a worm wheel; 9. a worm; 10. a driven gear; 11. a transmission shaft; 12. a drive gear; 13. a stepping motor I; 14. a cylinder I; 15. a bottom bracket; 16. a slide rail; 17. a screw rod I; 18. a slide block; 19. a step motor II; 20. a movable support; 21. a screw rod II; 22. a vertical carriage; 23. a step motor III; 24. a power module; 25. an electromagnetic coil; 26. a stabilizing support; 27. a fastening plate; 28. a portal frame; 29. a cylinder II; 30. a flow-limiting rod; 31. a collecting groove; 32. ingot casting barrel; 33. an ingot casting container; 34. a half gear; 35. a stepping motor IV; 36. a small bracket; 37. a supporting plate; 38. a door panel; 39. a horizontal carriage; 40. a housing; 41. a vacuum pipe; 42. a vacuum pump; 43. a cover plate; 44. and a cylinder III.

Detailed Description

The technical scheme of the invention is further specifically described below through examples and with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit or scope of the invention, which is therefore not limited to the specific embodiments disclosed below.

In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "front", "rear", "left", "right", etc. are based on directions or positional relationships shown in the drawings, or directions or positional relationships in which the inventive product is conventionally put in use, are merely for convenience in describing the simplified description of the present invention patent, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present invention patent. Further, spatially relative terms, such as "below," "beneath," "above," "over," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein interpreted accordingly.

1-11, a vacuum induction melting furnace and melting method for producing high purity metal, characterized in that: comprises an alternate smelting mechanism, an automatic coil conversion mechanism, an intermittent discharging mechanism and an auxiliary mechanism;

in an alternative embodiment of the present invention, as shown in fig. 4, the alternate smelting mechanism includes: the side bracket 1, the supporting frame 2, the smelting furnace 3, the drainage port 4, the diversion trench 5 and the center bracket 6; the two support frames 2 are symmetrical, the outer sides of the support frames 2 are rotatably arranged on the short shafts of the side supports 1, a smelting furnace 3 is fixedly arranged in the support frames 2, a drainage port 4 is fixedly welded on the smelting furnace 3, the drainage port 4 is used for conducting drainage on smelted materials, the diversion trenches 5 are fixedly arranged on two sides of the center support frame 6, and a part of the drainage port 4 stretches into the grooves of the diversion trenches 5.

In an alternative embodiment of the present invention, as shown in fig. 5, 6 and 7, the alternate smelting mechanism further includes: the device comprises a supporting plate 7, a worm wheel 8, a worm 9, a driven gear 10, a transmission shaft 11, a driving gear 12, a stepping motor I13 and a cylinder I14; the supporting plate 7 is fixedly welded with the central bracket 6, the two sides of the supporting plate 7 are rotatably provided with short shafts which are fixedly connected with the supporting frame 2, the short shafts on the two sides of the supporting plate 7 are fixedly provided with two worm gears 8, the worm gears 8 are driven to rotate so as to drive the supporting frame 2 to rotate, the smelting furnace 3 is driven to rotate, molten materials are poured out, the worm gears 8 are meshed with the worm gears 9, the number of the worm gears 9 is consistent with that of the worm gears 8, the two ends of the worm gears 9 are rotatably arranged in round holes of an extension plate on the supporting plate 7, the two worm gears 9 are fixedly provided with driven gears 10, and the positions of the two driven gears 10 are staggered; the transmission shaft 11 is movably arranged in a round hole in the support plate 7, a gear with a wider width is arranged in the middle of the transmission shaft 11, the gear with a wider width is meshed with a motor gear of the stepping motor I13, the stepping motor I13 is fixedly arranged on the support plate 7, one end of the transmission shaft 11 is fixedly provided with a driving gear 12, and the driving gear 12 can be meshed with one of the two driven gears 10; the cylinder body of cylinder I14 fixed mounting is on the extension board on backup pad 7, and the piston rod of cylinder I14 and the one end fixed connection of transmission shaft 11, and cylinder I14 can drive transmission shaft 11 and slide to drive driving gear 12 and different driven gear 10 meshing.

In an alternative embodiment of the present invention, as shown in fig. 8, the coil automation mechanism includes: the device comprises a bottom bracket 15, a sliding rail 16, a screw rod I17, a sliding block 18, a stepping motor II 19, a moving bracket 20, a screw rod II 21, a vertical sliding frame 22, a stepping motor III 23 and a coil module; the sliding rail 16 is fixedly arranged between the bottom brackets 15, the sliding rail 16 is provided with a sliding block 18 in a sliding manner, the sliding block 18 is in threaded connection with the screw rod I17, two ends of the screw rod I17 are rotatably arranged in a rotating hole in the bottom brackets 15, a gear at one end of the screw rod I17 is meshed with a motor gear of the stepping motor II 19, the stepping motor II 19 is fixedly arranged on the bottom brackets 15, and the sliding block 18 can be driven to horizontally move by the rotation of the screw rod I17; a movable bracket 20 is fixedly welded on the sliding block 18, and the movable bracket 20 is in sliding connection with a vertical sliding frame 22; the upper end of the screw rod II 21 is rotatably arranged in a rotating hole at the upper end of the movable support 20, the lower end of the screw rod II 21 is rotatably arranged in a rotating hole on the sliding block 18, the lower end of the screw rod II 21 is fixedly connected with a motor shaft of a stepping motor III 23, the stepping motor III 23 is fixedly arranged below the sliding block 18, meanwhile, the screw rod II 21 is in threaded connection with the middle of the vertical sliding block 22, and the vertical sliding block 22 can be driven to vertically move by the rotation of the screw rod II 21.

In an alternative embodiment of the present invention, as shown in fig. 9, the coil module includes: a power module 24, an electromagnetic coil 25, a stabilizing support 26 and a fastening plate 27; the power supply module 24 is fixedly connected with the vertical sliding frame 22, the wiring end of the electromagnetic coil 25 is connected into the power supply module 24 so as to generate current, the power supply module 24 is connected with the fastening plate 27 by the stabilizing support 26, and the fastening plate 27 is fixedly installed on the electromagnetic coil 25 in a penetrating manner so as to keep the electromagnetic coils 25 stable.

In an alternative embodiment of the present invention, as shown in fig. 10, the intermittent discharging mechanism includes: the valve-shaped bracket 28, the cylinder II 29, the flow limiting rod 30, the flow collecting groove 31, the intermittent assembly and the sliding assembly; the cylinder body of the cylinder II 29 is fixedly arranged on the door-shaped support 28, a piston rod of the cylinder II 29 is fixedly connected with the flow limiting rod 30, short rods on the extending shifts of the two sides of the flow limiting rod 30 are slidably arranged in round holes on the door-shaped support 28, the flow collecting groove 31 is fixedly arranged on a support column at the lower end of the center support 6, meanwhile, the center support 6 is fixedly connected with the door-shaped support 28, materials flowing out of the flow guiding groove 5 flow onto the flow collecting groove 31, flow downwards through the round holes on the flow collecting groove 31, the flow limiting rod 30 can block the round holes of the flow collecting groove 31, and the materials intermittently flow out when intermittent discharging is realized.

In an alternative embodiment of the present invention, as shown in fig. 10, the intermittent assembly includes: ingot barrel 32, ingot container 33, semi-gear 34, stepping motor IV 35, small bracket 36; a plurality of ingot containers 33 are arranged on the ingot barrel 32, positive teeth are arranged on the side face of the ingot barrel 32 and are meshed with the half gear 34 intermittently, the half gear 34 is fixedly arranged on a motor shaft of a stepping motor IV 35, and the stepping motor IV 35 is fixedly arranged on a small bracket 36.

In an alternative embodiment of the present invention, as shown in fig. 10 and 11, the sliding assembly includes: a pallet 37, door panels 38, horizontal carriages 39; the supporting plate 37 is fixedly connected with the ingot barrel 32, the door plate 38 is fixedly welded on the supporting plate 37, a sealing ring is arranged on one circle of the periphery of the door plate 38, the supporting plate 37 is further slidably arranged on the horizontal sliding frame 39, the door plate 38 is pulled by external force, and the supporting plate 37 can be pulled out, namely the ingot barrel 32 is pulled out.

In an alternative embodiment of the present invention, as shown in fig. 1, the auxiliary mechanism includes: a housing 40, a vacuum pipe 41, a vacuum pump 42, a cover plate 43 and a cylinder III 44; the bottom plate in the shell 40 is fixedly connected with the lower ends of the side bracket 1, the bottom bracket 15, the door-shaped bracket 28, the small bracket 36 and the horizontal sliding frame 39; the vacuum pipe 41 is fixedly connected to the side surface of the housing 40, the vacuum pump 42 is fixedly arranged on the vacuum pipe 41, and the vacuum pump 42 is used for vacuumizing the housing 40; the cover plate 43 is slidably mounted on a chute on the shell 40, the cover plate 43 is fixedly connected with a piston rod of the cylinder III 44, the cylinder body of the cylinder III 44 is fixedly mounted on the shell 40, and the cover plate 43 is opened under the drive of the cylinder III 44 and can be in butt joint with the feeding mechanism for feeding.

The invention also provides a vacuum induction smelting method for producing high-purity metal, which comprises the following steps:

s1: feeding is carried out, the two cylinders III 44 drive the cover plate 43 to be opened, and the cover plate is in butt joint with an external feeding mechanism to feed, so that raw materials are poured into the two melting furnaces 3, then the cover plate 43 is closed, and the vacuum pump 42 is started to vacuumize the interior of the shell 40;

s2: the alternative smelting is carried out, the stepping motor II 19 and the stepping motor III 23 are started to drive the screw rod I17 and the screw rod II 21 to rotate, so that the sliding block 18 and the vertical sliding frame 22 are driven to horizontally and vertically slide, the electromagnetic coil 25 is driven to move to the outer side of one smelting furnace 3, raw materials in the smelting furnace 3 are smelted, the smelted smelting furnace 3 can pour out internal molten slurry, and in a poured gap, the electromagnetic coil 25 is driven to move to the outer side of the other smelting furnace 3 to smelt the raw materials in the other smelting furnace 3, so that the smelting continuity is ensured;

s3: carrying out smelting discharge, pouring out molten slurry in the smelted smelter 3, starting a cylinder I14 to drive a transmission shaft 11 to slide, so that a driving gear 12 is meshed with a driven gear 10 at the smelted end, then starting a stepping motor I13 to drive the transmission shaft 11 to rotate, so that the meshed driven gear 10 is driven to rotate, so that a worm 9 is driven to rotate, a worm wheel 8 is driven to rotate, and then a support frame 2 is driven to rotate, so that the smelter 3 is inclined, a drainage port 4 on the smelter 3 moves in a diversion trench 5, and molten slurry is poured out and flows to a collecting tank 31 in the diversion trench 5;

s4: intermittent pouring is carried out, a stepping motor IV 35 is started to drive a half gear 34 to rotate, each time the half gear 34 rotates for one circle, an ingot barrel 32 is driven to rotate for one grid, molten slurry in a collecting groove 31 flows down into an ingot container 33, after one ingot container 33 is full, a cylinder II 29 is started to drive a flow limiting rod 30 to move downwards, so that the flow limiting rod 30 temporarily blocks a lower flow port of the collecting groove 31, simultaneously, the half gear 34 continues to drive the ingot barrel 32 to rotate for one grid, the flow limiting rod 30 is driven to lift up again, and the next ingot container 33 is continuously poured until all pouring positions are reached;

s5: the ingot container 33 is replaced, the filled ingot container 33 is pulled out through the pulling door plate 38, the ingot container 33 is replaced by an empty ingot container 33, the ingot container is pushed into the shell 40 again, smelting is continued, vacuumizing is needed again after pulling out and pushing, and vacuumizing is needed again after feeding in an alternating mode.

Working principle: when the invention is used, firstly, the feeding is carried out when the invention is started for the first time, the two cylinders III 44 drive the cover plate 43 to be opened, and the cover plate 43 is butted with an external feeding mechanism to feed, so that raw materials are poured into the two melting furnaces 3, then the cover plate 43 is closed, and the vacuum pump 42 is started to vacuumize the inner part of the shell 40.

Next, alternately smelting, starting a stepping motor II 19 and a stepping motor III 23, driving a screw rod I17 and a screw rod II 21 to rotate, driving a sliding block 18 and a vertical sliding frame 22 to horizontally and vertically slide, driving an electromagnetic coil 25 to move to the outer side of one of the smelting furnaces 3, smelting raw materials in the smelting furnaces 3, pouring out internal molten slurry from the smelting furnaces 3 after smelting, and smelting raw materials in the other smelting furnaces 3 by driving the electromagnetic coil 25 to move to the outer side of the other smelting furnaces 3 in a poured gap, so that the smelting continuity is ensured.

Next, smelting and discharging, pouring out internal molten slurry from the smelted smelter 3, starting a cylinder I14 to drive a transmission shaft 11 to slide, so that a driving gear 12 is meshed with a driven gear 10 at the smelted end, then starting a stepping motor I13 to drive the transmission shaft 11 to rotate, so that the meshed driven gear 10 is driven to rotate, so that a worm 9 is driven to rotate, further a worm wheel 8 is driven to rotate, and then a support frame 2 is driven to rotate, so that the smelter 3 is inclined, a drainage port 4 on the smelter 3 moves in a diversion trench 5, and molten slurry is poured out and flows onto a collecting tank 31 in the diversion trench 5.

Next, intermittent pouring is performed, the stepping motor IV 35 is started to drive the half gear 34 to rotate, the half gear 34 drives the ingot barrel 32 to rotate one lattice every time when rotating, meanwhile, molten slurry in the collecting groove 31 flows down into the ingot containers 33, after one ingot container 33 is full, the air cylinder II 29 is started to drive the flow limiting rod 30 to move downwards, so that the flow limiting rod 30 temporarily blocks a lower flow port of the collecting groove 31, simultaneously, the half gear 34 continues to drive the ingot barrel 32 to rotate one lattice, the flow limiting rod 30 is further driven to lift down, and the next ingot container 33 is continuously poured until all pouring positions are reached.

Next, replacing the ingot container 33, pulling out the filled ingot container 33 by pulling the door plate 38, replacing the ingot container 33 with an empty ingot container 33, pushing the ingot container into the shell 40 again, continuing smelting, and vacuumizing again after pulling out and pushing, wherein during alternate feeding, vacuumizing again is needed after feeding.

Claims (9)

1. A vacuum induction melting furnace for producing high purity metal, characterized in that: comprises an alternate smelting mechanism, an automatic coil conversion mechanism, an intermittent discharging mechanism and an auxiliary mechanism; the alternate smelting mechanism comprises: the device comprises a side bracket (1), a supporting bracket (2), a smelting furnace (3), a drainage port (4), a diversion trench (5) and a center bracket (6); the utility model discloses a device for guiding the molten steel of the electric furnace, including support frame (2), two support frames (2), lateral support frame (2), furnace (3) is installed in the rotation of the outside of support frame (2) on the minor axis of lateral support frame (1), fixedly welded on furnace (3) has drainage mouth (4), guiding gutter (5) fixed mounting is in the both sides of center support (6), the inslot of guiding gutter (5) is stretched into to a part of drainage mouth (4).

2. A vacuum induction melting furnace for producing high purity metal according to claim 1 wherein said alternate melting mechanism further comprises: the device comprises a supporting plate (7), a worm wheel (8), a worm (9), a driven gear (10), a transmission shaft (11), a driving gear (12), a stepping motor I (13) and a cylinder I (14); the support plate (7) is fixedly welded with the central support (6), the two sides of the support plate (7) are rotatably provided with short shafts, the short shafts are fixedly connected with the support frame (2), the short shafts on the two sides of the support plate (7) are fixedly provided with two worm gears (8), the worm gears (8) are meshed with worm gears (9), the number of the worm gears (9) is consistent with that of the worm gears (8), the two ends of the worm gears (9) are rotatably arranged in round holes of an extension plate on the support plate (7), the two worm gears (9) are fixedly provided with driven gears (10), and the positions of the two driven gears (10) are staggered; the transmission shaft (11) is movably arranged in a round hole on the supporting plate (7), a gear with a wider width is arranged in the middle of the transmission shaft (11), the gear with a wider width is meshed with a motor gear of the stepping motor I (13), the stepping motor I (13) is fixedly arranged on the supporting plate (7), one end of the transmission shaft (11) is fixedly provided with a driving gear (12), and the driving gear (12) can be meshed with one of the two driven gears (10); the cylinder body of the cylinder I (14) is fixedly arranged on an extension plate on the supporting plate (7), and a piston rod of the cylinder I (14) is fixedly connected with one end of the transmission shaft (11).

3. The vacuum induction melting furnace of claim 1 wherein said coil automated mechanism includes: the device comprises a bottom bracket (15), a sliding rail (16), a screw rod I (17), a sliding block (18), a stepping motor II (19), a movable bracket (20), a screw rod II (21), a vertical sliding frame (22), a stepping motor III (23) and a coil module; the sliding rail (16) is fixedly arranged between the bottom brackets (15), the sliding rail (16) is provided with a sliding block (18) in a sliding manner, the sliding block (18) is in threaded connection with the screw rod I (17), two ends of the screw rod I (17) are rotatably arranged in rotating holes on the bottom brackets (15), a gear at one end of the screw rod I (17) is meshed with a motor gear of the stepping motor II (19), and the stepping motor II (19) is fixedly arranged on the bottom brackets (15); a movable bracket (20) is fixedly welded on the sliding block (18), and the movable bracket (20) is in sliding connection with the vertical sliding frame (22); the upper end of the screw rod II (21) is rotatably arranged in a rotating hole at the upper end of the movable support (20), the lower end of the screw rod II (21) is rotatably arranged in a rotating hole on the sliding block (18), the lower end of the screw rod II (21) is fixedly connected with a motor shaft of the stepping motor III (23), the stepping motor III (23) is fixedly arranged below the sliding block (18), and meanwhile, the screw rod II (21) is in threaded connection with the middle of the vertical sliding frame (22).

4. A vacuum induction melting furnace for producing high purity metal according to claim 3, wherein said coil module comprises: the device comprises a power supply module (24), an electromagnetic coil (25), a stabilizing bracket (26) and a fastening plate (27); the power supply module (24) is fixedly connected with the vertical sliding frame (22), the wiring end of the electromagnetic coil (25) is connected into the power supply module (24), the power supply module (24) is connected with the fastening plate (27) through the stabilizing support (26), and the fastening plate (27) is fixedly inserted and installed on the electromagnetic coil (25).

5. A vacuum induction melting furnace for producing high purity metal according to claim 1 wherein said batch discharge mechanism comprises: the device comprises a door-shaped bracket (28), a cylinder II (29), a flow limiting rod (30), a flow collecting groove (31), an intermittent assembly and a sliding assembly; the cylinder body of the cylinder II (29) is fixedly arranged on the door-shaped support (28), a piston rod of the cylinder II (29) is fixedly connected with the flow limiting rod (30), short rods on two sides of the flow limiting rod (30) are slidably arranged in round holes on the door-shaped support (28), the flow collecting groove (31) is fixedly arranged on a support column at the lower end of the center support (6), and meanwhile the center support (6) is fixedly connected with the door-shaped support (28).

6. A vacuum induction furnace for producing high purity metal according to claim 5 wherein said batch assembly comprises: an ingot casting barrel (32), an ingot casting container (33), a half gear (34), a stepping motor IV (35) and a small bracket (36); a plurality of ingot casting containers (33) are arranged on the ingot casting barrel (32), positive teeth are arranged on the side face of the ingot casting barrel (32) and are meshed with a half gear (34) intermittently, the half gear (34) is fixedly arranged on a motor shaft of a stepping motor IV (35), and the stepping motor IV (35) is fixedly arranged on a small bracket (36).

7. The vacuum induction melting furnace of claim 5 wherein said slide assembly includes: the device comprises a supporting plate (37), a door plate (38) and a horizontal sliding frame (39); the supporting plate (37) is fixedly connected with the ingot barrel (32), a door plate (38) is fixedly welded on the supporting plate (37), a sealing ring is arranged on one circle of the periphery of the door plate (38), and the supporting plate (37) is further slidably arranged on the horizontal sliding frame (39).

8. A vacuum induction melting furnace for producing high purity metal according to claim 1 wherein said auxiliary mechanism comprises: a shell (40), a vacuum pipeline (41), a vacuum pump (42), a cover plate (43) and a cylinder III (44); the bottom plate in the shell (40) is fixedly connected with the lower ends of the side brackets (1), the bottom bracket (15), the door-shaped bracket (28), the small bracket (36) and the horizontal sliding frame (39); the vacuum pipeline (41) is fixedly connected to the side surface of the shell (40), and the vacuum pump (42) is fixedly arranged on the vacuum pipeline (41); the cover plate (43) is slidably mounted on a sliding groove on the shell (40), the cover plate (43) is fixedly connected with a piston rod of the air cylinder III (44), and a cylinder body of the air cylinder III (44) is fixedly mounted on the shell (40).

9. A vacuum induction melting process for producing high purity metal according to any one of claims 1 to 8 comprising the steps of:

s1: feeding is carried out, the two air cylinders III (44) drive the cover plate (43) to be opened, and the cover plate is in butt joint with an external feeding mechanism to be fed, so that raw materials are poured into the two smelting furnaces (3), then the cover plate (43) is closed, and the vacuum pump (42) is started to vacuumize the interior of the shell (40);

s2: the method comprises the steps of alternately smelting, starting a stepping motor II (19) and a stepping motor III (23), driving a screw rod I (17) and a screw rod II (21) to rotate, driving a sliding block (18) and a vertical sliding frame (22) to horizontally and vertically slide, driving an electromagnetic coil (25) to move to the outer side of one of the smelting furnaces (3), smelting raw materials in the smelting furnaces (3), pouring out internal molten slurry from the smelting furnaces (3), and driving the electromagnetic coil (25) to move to the outer side of the other smelting furnace (3) in a poured gap, so that the raw materials in the other smelting furnaces (3) are smelted, and the continuity of smelting is ensured;

s3: carrying out smelting discharging, pouring out molten slurry in a smelted smelting furnace (3), starting a driving transmission shaft (11) to slide by a cylinder I (14), meshing a driving gear (12) with a driven gear (10) at the smelted end, then starting a stepping motor I (13) to drive the driving transmission shaft (11) to rotate, driving the meshed driven gear (10) to rotate, driving a worm (9) to rotate, driving a worm wheel (8) to rotate, driving a supporting frame (2) to rotate, tilting the smelting furnace (3), moving a drainage port (4) on the smelting furnace (3) in a diversion trench (5), pouring out molten slurry, and flowing the molten slurry in the diversion trench (5) to a collecting tank (31);

s4: intermittent pouring is carried out, a stepping motor IV (35) is started to drive a half gear (34) to rotate, each time the half gear (34) rotates for one circle, an ingot barrel (32) is driven to rotate for one grid, molten slurry in a collecting groove (31) flows down into an ingot container (33), after one ingot container (33) is full, a cylinder II (29) is started to drive a flow limiting rod (30) to move downwards, so that the flow limiting rod (30) temporarily blocks a downward flow port of the collecting groove (31), meanwhile, the half gear (34) continues to drive the ingot barrel (32) to rotate for one grid, the flow limiting rod (30) is driven to lift up again, and the next ingot container (33) is continuously poured until all filling positions are reached;

s5: replacing the ingot container (33), pulling out the filled ingot container (33) through a pulling door plate (38), replacing the ingot container with an empty ingot container (33), pushing the ingot container into the shell (40) again, continuing smelting, pulling out and pushing the ingot container, vacuumizing again, and vacuumizing again after feeding in turn.