An auxiliary device for industrial silicon smelting

Abstract

The present invention relates to the technical field of material refining equipment, and specifically relates to an industrial silicon smelting auxiliary device, which includes a basic electric furnace, a rotating cover, a material breaking mechanism, a lifting mechanism, and a surface material stripping mechanism. An operator places refined material containing silicon in the basic electric furnace and starts a heating electrode for refining. At the same time, some hard products are produced during the material stripping process. Such products are products in the refining step. Due to their hard texture, the heating electrode is prevented from protruding downward, and the material receiving bowl is agglomerated on the surface, hindering subsequent chemical reactions. Through the coordination of various components of the equipment, the surface agglomeration of such products is effectively solved, and the peripheral refined material is spread to the high-temperature area in the center. The equipment has good practicality and economy, and is beneficial to the promotion and use of the equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of material refining equipment, and in particular to an industrial silicon smelting auxiliary device. Background Art

[0002] Industrial silicon is also known as semi-metallic silicon. Metallic silicon is a product smelted from silica and carbonaceous reducing agents in a submerged arc furnace.

[0003] The main raw materials for smelting industrial silicon are silica and carbonaceous reducing agents. Low-ash petroleum coke or pitch coke are typically used as the reducing agent. However, due to the low resistivity and poor reactivity of these cokes, charcoal, with its low ash content, high resistivity, and high reactivity, must be used to partially replace the petroleum coke. Furthermore, the use of charcoal can easily lead to ignition and collapse due to poor surface sintering, making it difficult to form a high-temperature reaction zone. This can lead to the formation of a SiC layer at the furnace bottom, which pushes the electrodes upward, reducing the heating area, resulting in shorter smoldering times, and higher specific energy consumption. If effective measures are not taken promptly, economic losses can result from furnace shutdowns, digging, rebuilding, and new furnaces. Summary of the Invention

[0004] In order to solve the above problems existing in the prior art, the present invention aims to provide an industrial silicon smelting auxiliary device which assists in crushing the hard product layer, lowering the auxiliary electrode, and moving the edge of the refined material to the high temperature area.

[0005] The technical solution adopted by the present invention is: an industrial silicon smelting auxiliary device, comprising

[0006] A basic electric furnace, comprising a carrying platform, a material receiving bowl being provided below the carrying platform, a support plate being provided above the carrying platform, and an electrode heating element being provided in the middle of the support plate for heating the smelting raw materials;

[0007] A rotating cover, located between the support plate and the carrying platform, for carrying the entire device;

[0008] The material breaking mechanism is located on one side of the middle part of the rotating cover close to the carrying platform. The material breaking mechanism includes a crushing lifting member and an adjusting member, which are used to break and lift the hard products in the smelting process, and an auxiliary electrode heating member for heating pretreatment;

[0009] A lifting mechanism, located above the support plate, for cooperating with the crushing mechanism to change its crushing position;

[0010] The surface material-diverting mechanism is located between the material-breaking mechanism and the rotating cover, and is used to cooperate with the rotating cover to gather the materials toward the center.

[0011] In one embodiment, the rotating cover includes an open heat insulation cover, a hollow rotating gear disk is provided above the open heat insulation cover, the side of the open heat insulation cover away from the support plate is attached to the load-bearing platform, and two groups of bottom edge rings are provided at one end of the open heat insulation cover attached to the load-bearing platform. A plurality of balls are placed between the load-bearing platform and the open heat insulation cover, and the balls are placed between the two groups of bottom edge rings. Three groups of rotating parts are engaged with the outer periphery of the hollow rotating gear disk to cooperate with the balls to rotate the open heat insulation cover placed on the load-bearing platform.

[0012] In one embodiment, three groups of rotating parts are arranged in a circular array around the open heat insulation cover, and the rotating parts include a rotating motor, an extension rod is provided on the rotating shaft of the rotating motor, a fixing frame is provided in the middle of the extension rod, and the end of the fixing frame away from the connection of the extension rod is fixedly connected to the supporting platform, and the end of the extension rod away from the rotating motor is provided with a rotating gear, and the rotating gear is engaged with the hollow rotating gear disc.

[0013] In one embodiment, the crushed material lifting member includes three groups of stirring augers, which are arranged in a circular array around the electrode heating member and placed in the inner cavity of the material receiving bowl. A stirring augers is provided at one end of the stirring augers, and the long rod of the stirring augers passes through and is rotatably connected to the fixed block. A first bevel gear is provided at the end of the stirring augers away from the material receiving bowl, and fixing nails are provided on both sides of the fixed block. A second bevel gear is provided on one of the fixing nails, and the second bevel gear is rotatably connected to the fixing nail. The second bevel gear is engaged with the first bevel gear. A transmission chain is also provided on the second bevel gear, and an auger rotation motor is provided at the other end of the transmission chain away from the second bevel gear.

[0014] In one embodiment, the adjusting member includes a torsion column, which is fixedly connected to a fixing pin on the fixing block away from the second bevel gear. The torsion column is provided with an angle adjustment chain, and an angle adjustment motor is provided at one end of the angle adjustment chain away from the torsion column. The adjusting member also includes three groups of arc-shaped buckle plates, and the two ends of the arc-shaped buckle plates are rotatably connected to the ends of the similar fixing pins on the chip lifting members in a circular array to fix the three groups of chip lifting members.

[0015] In one embodiment, the lifting mechanism includes a lifting support plate, which is located at the center of one side of the support plate away from the supporting platform. Six groups of extension plates are extended from the lifting support plate, and a number of connecting columns are provided on the extension plates. The connecting columns are perpendicular to the supporting platform and are arranged in a circular array around the open heat insulation cover. One end of the connecting column is fixedly connected to the lifting support plate, and the other end of the connecting column away from the lifting support plate is fixedly connected to the auger rotation motor and the angle adjustment motor. A sliding guide column is provided in the middle of the connecting column, and the end of the sliding guide column away from the connecting column is fixedly connected to the open heat insulation cover.

[0016] In one embodiment, a plurality of connecting rods are further provided in the middle of the circular ring of the lifting support plate, one end of the connecting rod is fixedly connected to the lifting support plate, and a lifting connecting block is provided at the other end of the connecting rod away from the lifting support plate, and the lifting connecting block is fixedly connected to the outer periphery of the arc-shaped buckle plate, and a guide column is provided in the middle of the connecting rod, and one end of the guide column is fixedly connected to the side of the hollow rotating toothed disc away from the lifting support plate, and three groups of lifting parts are provided between the lifting support plate and the hollow rotating toothed disc, which are used to lift the lifting support plate and drive the breaking mechanism to move vertically.

[0017] In one embodiment, the lifting member includes a lifting plate, which is attached to the extension plate on the lifting support plate close to the side of the hollow rotating gear disk. A threaded rod is provided in the middle of the lifting plate, and a lifting rotating motor is provided at the other end of the threaded rod away from the lifting support plate.

[0018] In one embodiment, the surface material dispensing mechanism includes a material dispensing support plate, which is located above the inner cavity of the material receiving bowl, and a plurality of telescopic rods are provided on the material dispensing support plate, one end of the telescopic rod is fixedly connected to the material dispensing support plate, and the other end of the telescopic rod is fixedly connected to the hollow rotating gear disk. A pressure spring is provided between the hollow rotating gear disk and the material dispensing support plate and is penetrated by the telescopic rod, and a plurality of arc-shaped through grooves are also provided on the material dispensing support plate, and the arc-shaped through grooves are arranged in a circular array on the material dispensing support plate, and a plurality of material dispensing plates are provided on the other side of the material dispensing support plate away from the telescopic rod, and the material dispensing plates are radially distributed, and a rotating column is provided at one end of the material dispensing plate, and the rotating column is rotatably connected to the material dispensing support plate, and an arc-shaped guide column is provided at the other end of the material dispensing plate away from the rotating column, and the arc-shaped guide column passes into the arc-shaped through groove.

[0019] In one embodiment, the material diverting plate has a trapezoidal structure, and the length of one side of the material diverting plate close to the center of the material diverting support plate is smaller than the other side.

[0020] The beneficial effects of the present invention are as follows: the present invention is an auxiliary device for industrial silicon smelting that assists in crushing the hard product layer, and the auxiliary electrode descends to move the edge of the refined material to the high-temperature area. The operator mixes the silicon material with a reducing agent and puts the mixture into a receiving bowl. After completion, the heating electrode is started to descend to contact the mixture and then heat it for refining. Since the carbon mixture used as a reducing agent will produce hard SiC during the refining process, SiC will lift the heating electrode to reduce the contact area, increase the heating power consumption and the probability of damage to the equipment, and therefore start the auger rotation motor. The auger's self-rotating motor drives the transmission chain to rotate, and at the same time rotates the first bevel gear that meshes with the second bevel gear. The first bevel gear then fixes the rotating stirring auger. Due to the characteristics of the auger, the change in the rotation direction driven by the auger's self-rotating motor will change the function of crushing and lifting and transporting. If the hard and bottom-sinking SiC is crushed, the rotation direction is changed and lifted to the middle, accelerating the reaction rate of SiO2+3C=SiC+2C0(g)↑; 2SiC+SiO2=3Si+2CO(g)↑. If there is still excess SiC, the SiC will be lifted to the surface.

[0021] At the same time, in response to the arc-shaped heat radiation range of the heating electrode, the silicon material at the edge of the receiving bowl reacts slowly and cannot be effectively solved. The angle adjustment motor is started, and the angle adjustment motor drives the angle adjustment chain to rotate the twisting column. The twisting column twists the fixed block fixed on the fixed nail, and then rotates the angle between the stirring auger and the bottom edge of the receiving bowl. The auger structure cooperates with the silicon material at the periphery of the inner cavity of the receiving bowl to the center of the receiving bowl, effectively solving the problem of uneven heating.

[0022] Due to the limited range of motion of the stirring auger, the rotating motor is started to rotate the rotating gear on the extended rod engaged with the rotating motor, which pushes the rotating gear to rotate the hollow rotating toothed disc, driving the lifting connecting rod and the sliding guide column to rotate, and at the same time driving the lifting support plate and the connecting column to rotate. During the rotation process, the crushing mechanism is also driven to rotate at the same time, ensuring that the stirring auger can perform multi-position crushing and transportation. At the same time, multiple ball bearings are provided between the bearing platforms that support the open heat insulation cover, so that the open heat insulation cover and the bottom edge ring can slide freely, reducing its rotation power demand and further saving energy.

[0023] During the downward movement of the heating electrode, since part of the SiC in the silicon material blocks the downward movement and the threaded rod cannot be continuously moved downward, the lifting rotation motor is started to drive the threaded rod to rotate, further increasing the distance between the lifting plate and the hollow rotating toothed disc, and lifting the lifting support plate. The lifting support plate further lifts the connecting column and the connecting rod, and the arc-shaped buckle plate is lifted synchronously with the auger rotation motor and the angle adjustment motor to achieve the upward translation of the overall structure of the material breaking mechanism. Then, the auger rotation motor and the angle adjustment motor are started, and the top of the stirring auger rotor is moved to the vicinity of the heating electrode. The lifting rotation motor is started to lower the lifting plate, and the silicon material is peeled off near the heating electrode to assist its descent. The above steps are repeated to transfer the silicon material to the vicinity of the heating electrode.

[0024] Due to multiple lifting and transportation of silicon materials, some hard SiC floats on the surface. During the rotation of the open heat shield, it is subjected to the elastic force of the pressure spring, causing the material stripping support plate to fit the surface of the silicon material. Furthermore, the rotation of the hollow rotating gear disk drives the material stripping support plate on the telescopic rod to rotate. At the same time, the material stripping plate in contact with the material stripping support plate below the material stripping support plate causes the arc-shaped guide column to slide in the arc-shaped through groove along the connection direction of the rotating column, causing it to deviate from the central radial axis, driving the surface SiC to be crushed and smoothed. Even if the rotation direction of the open heat shield is changed, the same effect can be achieved. At the same time, the height difference between the two ends of the material stripping plate is utilized to accumulate the silicon material from the outside to the inside, and the stirring auger is cooperated to achieve a better transfer effect, which facilitates the acceleration of the reaction rate.

[0025] The equipment has a simple structure and realizes the transfer and transportation of hard SiC by setting up a multi-angle rotating and lifting stirring auger. At the same time, the auxiliary heating electrode descends in the hard silicon material, solving the problem of moving the edge of the refined material to the high-temperature area. It has good practicality and economic value, which is beneficial to the promotion and use of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the cross-sectional three-dimensional structure of the present invention;

[0029] Figure 3 It is a schematic diagram of the three-dimensional structure of the material breaking mechanism of the present invention;

[0030] Figure 4 This is the second partial three-dimensional structural diagram of the material breaking mechanism of the present invention;

[0031] Figure 5 It is a schematic diagram of the cross-sectional three-dimensional structure of the rotary cover of the present invention;

[0032] Figure 6 It is a schematic diagram of the three-dimensional structure of the lifting mechanism of the present invention;

[0033] Figure 7 This is the second three-dimensional structural diagram of the lifting mechanism of the present invention;

[0034] Figure 8 It is a schematic diagram of the three-dimensional structure of the surface material digging mechanism of the present invention;

[0035] Figure 9 It is a schematic diagram of the three-dimensional structure of the surface material diverting mechanism of the present invention from a second viewing angle.

[0036] Description of the drawings: 1. Basic electric furnace; 11. Power unit; 12. Support plate; 13. Heating electrode; 14. Carrying platform; 15. Material receiving bowl; 2. Rotating cover; 21. Open heat shield; 22. Hollow rotating gear disc; 23. Rotating motor; 231. Extension rod; 232. Rotating gear; 233. Fixed frame; 24. Bottom ring; 25. Ball; 3. Material breaking mechanism; 31. Agitator; 32. Fixed block; 321. Fixed nail; 33. First bevel gear; 34. Second bevel gear; 35. Transmission chain; 36. Agitator rotation Motor; 37. Twisting column; 38. Angle adjustment chain; 39. Angle adjustment motor; 310. Arc-shaped buckle plate; 4. Lifting mechanism; 41. Lifting support plate; 42. Connecting column; 43. Sliding guide column; 44. Lifting plate; 45. Lifting rotation motor; 451. Threaded rod; 46. Connecting rod; 47. Guide column; 48. Lifting connection block; 5. Surface feeding mechanism; 51. Feeding support plate; 511. Arc-shaped slot; 52. Telescopic rod; 53. Pressure spring; 54. Feeding plate; 541. Arc-shaped guide column; 55. Rotating column. DETAILED DESCRIPTION

[0037] In order to make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present invention and are not intended to limit the present invention. That is, the embodiments described herein are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and illustrated in the drawings herein may be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely intended to represent selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.

[0039] The following combination Figure 1-9The specific embodiment of the present invention is described, an industrial silicon smelting auxiliary device, comprising

[0040] Reference Figure 1 、 2 As shown, the basic electric furnace 1 includes a carrying platform 14, a material receiving bowl 15 is provided below the carrying platform 14, a support plate 12 is provided above the carrying platform 14, and an electrode heating element is provided in the middle of the support plate 12. The motor heating element includes a power unit 11 and a heating electrode 13. This type of electrode heating element is an existing device, which mainly provides an ultra-high temperature heating electrode 13 through the power unit 11 for melting silicon materials. It does not belong to the improvement of the present invention and will not be described in detail here.

[0041] The rotating cover 2 is located between the support plate 12 and the carrying platform 14 and is used to carry the entire device. The rotating cover 2 includes an open heat insulation cover 21. A hollow rotating gear disc 22 is provided above the open heat insulation cover 21. The middle portion of the hollow rotating gear disc 22 is rotatably connected to the support plate 12.

[0042] Furthermore, the open heat shield 21 is provided with three groups of openings for feeding some materials and introducing equipment;

[0043] As can be seen, the hollow rotating toothed disc 22 can drive the open heat shield 21 below to rotate along the center of the support plate 12, assisting in the observation of different positions and the operation of subsequent equipment;

[0044] Reference Figure 5 As shown, the side of the open heat shield 21 away from the support plate 12 is attached to the carrying platform 14, and the end of the open heat shield 21 attached to the carrying platform 14 is provided with two groups of bottom edge rings 24, the two groups of bottom edge rings 24 are respectively attached to the inner and outer sides of the open heat shield 21, and the ends of the two groups of bottom edge rings 24 away from the support plate 12 are fixedly connected to the carrying platform 14, and a plurality of balls 25 are placed between the carrying platform 14 and the open heat shield 21. The balls 25 are placed between the two groups of bottom edge rings 24 to form a sliding bearing structure, and the outer periphery of the hollow rotating gear disc 22 is meshed with three A rotating member is provided for cooperating with the ball bearing 25 to rotate the open heat shield 21 placed on the supporting platform 14. The rotating member includes a rotating motor 23. An extension rod 231 is provided on the rotating shaft of the rotating motor 23. A fixing bracket 233 is provided in the middle of the extension rod 231. The fixing bracket 233 is fixedly connected to the extension rod 231. One end of the fixing bracket 233 away from the connection with the extension rod 231 is fixedly connected to the supporting platform 14. A rotating gear 232 is provided on the end of the extension rod 231 away from the rotating motor 23. The rotating gear 232 is meshed with a hollow rotating gear disc 22.

[0045] As can be seen, the rotating member cooperates with a number of balls 25 to freely rotate the open heat shield 21, reducing the torsional torque and helping to save energy;

[0046] Reference Figure 3 、 4 As shown, the crushing mechanism 3 is located on one side of the middle of the rotating cover 2 near the supporting platform 14. The crushing mechanism 3 includes a crushing lifting member and an adjusting member, which are used to crush and lift the hard products in the smelting, and assist the electrode heating member in heating pretreatment. The crushing lifting member includes three groups of stirring augers 31. The three groups of stirring augers 31 are arranged in a circular array around the electrode heating member and placed in the inner cavity of the material receiving bowl 15. A stirring augers 31 is provided at one end of the stirring augers 31. The long rod of the stirring augers 31 passes through and is rotatably connected to the fixed block 32. The end of the stirring augers 31 away from the material receiving bowl 15 is provided with a first bevel gear 33. Fixed nails 321 are provided on both sides of the fixed block 32. The fixed nails 321 are fixedly connected On the fixed block 32, a second bevel gear 34 is provided on a fixing pin 321 thereof. The second bevel gear 34 is rotatably connected to the fixing pin 321, and the second bevel gear 34 is meshed with the first bevel gear 33. A transmission chain 35 is also provided on the second bevel gear 34. The transmission chain 35 is a chain group with a transmission function in a broad sense. The accompanying drawings are simplified structures and do not represent the actual implementation scale. One end of the transmission chain 35 is transmission-connected to the second bevel gear 34, and the other end of the transmission chain 35 away from the second bevel gear 34 is provided with an auger rotation motor 36. The auger rotation motor 36 is placed outside the opening of the open heat insulation cover 21, and the rotating shaft of the auger rotation motor 36 is transmission-connected to the transmission chain 35;

[0047] In practice, by starting the auger rotation motor 36, the chain is driven to rotate the second bevel gear 34, which engages the first bevel gear 33 to rotate the stirring auger 31 below. This is beneficial to the unique structure of the stirring auger 31. By changing the rotation direction of the auger rotation motor 36, the material transportation and pushing functions can be achieved, which is perfectly suitable for the crushing of bulk silicon materials for transportation and cleaning, and assists the heating electrode 13 in downward exploration.

[0048] Reference Figure 4 As shown, the adjusting member includes a torsion column 37, which is fixedly connected to a fixing pin 321 on the fixing block 32 away from the second bevel gear 34. An angle adjustment chain 38 is provided on the torsion column 37. The angle adjustment chain 38 is a chain group with a transmission function in a broad sense. The accompanying drawings are simplified structures and do not represent the actual implementation scale. One end of the angle adjustment chain 38 is transmission-connected to the torsion column 37. An angle adjustment motor 39 is provided at the end of the angle adjustment chain 38 away from the torsion column 37. The rotating shaft of the angle adjustment motor 39 is transmission-connected to the angle adjustment chain 38.

[0049] Specifically, the angle adjustment motor 39 is a torque motor with angle self-locking function, which can realize rotation or pause at a fixed angle;

[0050] The adjusting member further includes three sets of arc-shaped gusset plates 310, the ends of which are rotatably connected to the ends of the adjacent fixing pins 321 on the circumferential array of scrap lifting members, so as to fix the three sets of scrap lifting members;

[0051] In practice, since the receiving bowl 15 is large, the fixed angle stirring auger 31 cannot meet the stirring demand. By rotating the angle adjustment motor 39 to drive the twisting column 37 to twist the fixed block 32, the stirring auger 31 on the fixed block 32 is adjusted, and the working angle of the stirring auger 31 is adjusted to better cooperate with the stirring implementation.

[0052] Reference Figure 6 、 7 As shown, the lifting mechanism 4 is located above the support plate 12 and is used to cooperate with the crushing mechanism 3 to change its crushing position. The lifting mechanism 4 includes a lifting support plate 41. The lifting support plate 41 is located at the center of the side of the support plate 12 away from the carrying platform 14. Six groups of extension plates are extended from the lifting support plate 41. A plurality of connecting columns 42 are provided on the extension plate. The connecting columns 42 are perpendicular to the carrying platform 14 and are arranged in a circular array around the open heat insulation cover 21. One end of the connecting column 42 is fixedly connected to the lifting support plate 41, and the other end of the connecting column 42 away from the lifting support plate 41 is fixedly connected to the auger rotation motor 36 and the angle adjustment motor 39. A sliding guide column 43 is provided in the middle of the connecting column 42. The sliding guide column 43 is slidably connected to the connecting column 42, and the other end of the sliding guide column 43 away from the connecting column 42 is fixedly connected to the open heat insulation cover 21.

[0053] Advantageously, a plurality of connecting rods 46 are further provided in the middle of the circular ring of the lifting support plate 41, one end of the connecting rod 46 is fixedly connected to the lifting support plate 41, and a lifting connecting block 48 is provided at the other end of the connecting rod 46 away from the lifting support plate 41, and the lifting connecting block 48 is fixedly connected to the outer periphery of the arc-shaped gusset plate 310, and a guide column 47 is provided in the middle of the connecting rod 46, and the guide column 47 is slidably connected to the connecting rod 46, and one end of the guide column 47 is fixedly connected to the side of the hollow rotating gear disc 22 away from the lifting support plate 41, and the lifting support plate 41 is provided. Three sets of lifting parts are provided between the hollow rotating toothed disc 22 to lift the lifting support plate 41 and drive the crushing mechanism 3 to move vertically. The lifting parts include a lifting plate 44. The lifting plate 44 is attached to the extension plate on the lifting support plate 41 close to the side of the hollow rotating toothed disc 22. A threaded rod 451 is provided in the middle of the lifting plate 44. The threaded rod 451 is rotatably connected to the lifting plate 44. A lifting rotating motor 45 is provided at the other end of the threaded rod 451 away from the lifting support plate 41. The rotating shaft of the lifting rotating motor 45 is fixedly connected to the threaded rod 451.

[0054] In practice, the lifting rotation motor 45 is started to drive the threaded rod 451 to rotate, further increasing the distance between the lifting plate 44 and the hollow rotating toothed disc 22, lifting the lifting support plate 41, and lifting the support plate 41 further lifts the connecting column 42 and the connecting rod 46, and the arc buckle plate 310 is lifted synchronously with the auger rotation motor 36 and the angle adjustment motor 39, thereby realizing the upward translation of the overall structure of the breaking mechanism 3.

[0055] Reference Figure 8 、 9 As shown, the surface material-digging mechanism 5 is located between the material-breaking mechanism 3 and the rotating cover 2, and is used to cooperate with the rotating cover 2 to gather the materials to the center. The surface material-digging mechanism 5 includes a material-digging support plate 51, which is located above the inner cavity of the material-receiving bowl 15. A plurality of telescopic rods 52 are provided on the material-digging support plate 51. One end of the telescopic rod 52 is fixedly connected to the material-digging support plate 51, and the other end of the telescopic rod 52 is fixedly connected to the hollow rotating toothed disc 22. A telescopic rod 5 is provided between the hollow rotating toothed disc 22 and the material-digging support plate 51. 2 passes through the pressure spring 53, the material diverter support plate 51 is further provided with a plurality of arcuate through-slots 511, which are arranged in a circular array on the material diverter support plate 51. A plurality of material diverter plates 54 are provided on the other side of the material diverter support plate 51 away from the telescopic rod 52. The material diverter plates 54 are radially distributed. A rotating column 55 is provided at one end of the material diverter plate 54, which is rotatably connected to the material diverter support plate 51. An arcuate guide column 541 is provided at the other end of the material diverter plate 54 away from the rotating column 55. The arcuate guide column 541 passes into the arcuate through-slot 511.

[0056] Advantageously, the material diverting plate 54 is of a trapezoidal structure, and the length of one side of the material diverting plate 54 close to the center of the material diverting support plate 51 is smaller than the other side;

[0057] In practice, due to multiple lifting and transportation of silicon materials, some hard SiC floats on the surface. During the rotation of the open heat insulation cover 21, the material-dipping support plate 51 is adhered to the surface of the silicon material by the elastic force of the pressure spring 53. Furthermore, the rotation of the hollow rotating gear disc 22 drives the material-dipping support plate 51 on the telescopic rod 52 to rotate. At the same time, the material-dipping plate 54 in contact with the lower side of the material-dipping support plate 51 makes the arc-shaped guide column 541 slide in the arc-shaped through groove 511 along the connection direction of the rotating column 55, so that it deviates from the central radial axis, driving the SiC on the surface to be crushed and smoothed. Even if the rotation direction of the open heat insulation cover 21 is changed, the same effect can be achieved. At the same time, the height difference between the two ends of the material-dipping plate 54 is utilized to stack the silicon material from the outside to the inside, and the stirring auger 31 is used to achieve a better transfer effect, which facilitates the acceleration of the reaction rate and effectively reduces the energy consumption of the electrode.

[0058] The working principle of the present invention is as follows: the operator mixes the silicon material with the reducing agent and puts the mixture into the receiving bowl 15. After completion, the heating electrode 13 is started to descend and contact the mixture for heating and refining. Since the carbon mixture as the reducing agent will produce hard SiC during the refining process, SiC will lift the heating electrode 13 to make the contact area reduced, increase the heating power consumption and the probability of damage to the equipment, so the auger rotation motor 36 is started, and the auger rotation motor 36 drives the transmission chain 35 to rotate, and at the same time rotates the first bevel gear 33 engaged with the second bevel gear 34, and the first bevel gear 33 fixes the rotating stirring auger 31. Due to the characteristics of the auger, the change of the rotation direction driven by the auger rotation motor 36 will change the function of crushing and lifting and transporting. If the hard and sinking SiC is crushed, the rotation direction is changed and lifted to the middle, accelerating the reaction rate of SiO2+3C=SiC+2C0(g)↑; 2SiC+SiO2=3Si+2CO(g)↑. If there is still excess SiC, SiC is lifted to the surface.

[0059] At the same time, in response to the arc-shaped heat radiation range of the heating electrode 13, the silicon material located at the edge of the receiving bowl 15 reacts slowly and cannot be effectively solved. The angle adjustment motor 39 is started, and the angle adjustment motor 39 drives the angle adjustment chain 38 to rotate the twisting column 37. The twisting column 37 twists the fixed block 32 fixed on the fixing nail 321, and then rotates the angle between the stirring auger 31 and the bottom edge of the receiving bowl 15. The auger structure cooperates with the silicon material at the periphery of the inner cavity of the receiving bowl 15 to rotate to the center of the receiving bowl 15, effectively solving the problem of uneven heating.

[0060] Because the range of movement of the stirring auger 31 is limited, the rotating motor 23 is started to rotate the rotating gear 232 on the extended rod 231 engaged on the rotating motor 23, and the rotating gear 232 is pushed to rotate the hollow rotating toothed disc 22, driving the lifting connecting rod 46 and the sliding guide column 43 to rotate, and at the same time driving the lifting support plate 41 and the connecting column 42 to rotate. During the rotation process, the crushing mechanism 3 is also driven to rotate at the same time, ensuring that the stirring auger 31 can perform multi-position crushing and transportation. At the same time, a plurality of balls 25 are provided between the supporting platforms 14 supporting the open heat insulation cover 21, so that the open heat insulation cover 21 and the bottom edge ring 24 can slide freely, reducing its rotation power demand and further saving energy.

[0061] During the downward movement of the heating electrode 13, since part of the SiC in the silicon material blocks the downward movement and the heating electrode 13 cannot be continuously moved downward, the lifting and rotating motor 45 is started to drive the threaded rod 451 to rotate, further increasing the distance between the lifting plate 44 and the hollow rotating toothed disc 22, and lifting the lifting support plate 41. The lifting support plate 41 further lifts the connecting column 42 and the connecting rod 46, and the arc-shaped buckle plate 310 is lifted synchronously with the auger rotation motor 36 and the angle adjustment motor 39 to achieve the upward translation of the overall structure of the material breaking mechanism 3. Then, the auger rotation motor 36 and the angle adjustment motor 39 are started, and the top of the rotating head of the stirring auger 31 is moved to the vicinity of the heating electrode 13. Then, the lifting and rotating motor 45 is started to lower the lifting plate 44, and the silicon material is peeled off near the heating electrode 13 to assist its descent. Then, the above steps are repeated to transfer the silicon material to the vicinity of the heating electrode 13.

[0062] Due to multiple lifting and transportation of silicon materials, some hard SiC floats on the surface. During the rotation of the open heat insulation cover 21, it is subjected to the elastic force of the pressure spring 53, and the material-pickup support plate 51 is attached to the surface of the silicon material. Furthermore, the rotation of the hollow rotating gear disc 22 drives the material-pickup support plate 51 on the telescopic rod 52 to rotate. At the same time, the material-pickup plate 54 in contact with the lower side of the material-pickup support plate 51 makes the arc-shaped guide column 541 slide in the arc-shaped through groove 511 along the connection direction of the rotating column 55, so that it deviates from the central radial axis, driving the SiC on the surface to be crushed and smoothed. Even if the rotation direction of the open heat insulation cover 21 is changed, the same effect can be achieved. At the same time, the height difference between the two ends of the material-pickup plate 54 is utilized to stack the silicon material from the outside to the inside, and the stirring auger 31 is cooperated to achieve a better transfer effect, which facilitates the acceleration of the reaction rate.

[0063] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0064] The above content is merely an example and explanation of the structure of the present invention. Those skilled in the art may make various modifications or additions to the described specific embodiments or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the scope of protection of the present invention.

Claims

1. An industrial silicon smelting auxiliary device, characterized by: include A basic electric furnace (1), the basic electric furnace (1) comprising a carrying platform (14), a material receiving bowl (15) being provided below the carrying platform (14), a support plate (12) being provided above the carrying platform (14), and an electrode heating element being provided in the middle of the support plate (12) for heating smelting raw materials; A rotating cover (2), the rotating cover (2) being located between the support plate (12) and the carrying platform (14) and being used to carry the entire device; The rotating cover (2) comprises an open heat-insulating cover (21), and a hollow rotating toothed disc (22) is provided above the open heat-insulating cover (21). A material breaking mechanism (3), the material breaking mechanism (3) is located on one side of the middle of the rotating cover (2) close to the carrying platform (14), and the material breaking mechanism (3) includes a crushing lifting member and an adjusting member, which are used to break and lift hard products in smelting, and an auxiliary electrode heating member for heating pretreatment; The crushed material lifting member includes three groups of stirring augers (31), which are arranged in a circumferential array around the electrode heating member and placed in the inner cavity of the material receiving bowl (15), one end of the stirring augers (31) is provided with a fixed block (32), a long rod of the stirring augers (31) passes through and is rotatably connected to the fixed block (32), and the end of the stirring augers (31) away from the material receiving bowl (15) is provided with a first bevel gear (33), both sides of the fixed block (32) are provided with fixing nails (321), one of the fixing nails (321) is provided with a second bevel gear (34), and the second bevel gear (34) is rotatably connected to the fixing nail (321); The adjusting member comprises a twisting column (37), the twisting column (37) being fixedly connected to a fixing nail (321) on the fixing block (32) away from the second bevel gear (34), an angle adjustment chain (38) being provided on the twisting column (37), and an angle adjustment motor (39) being provided at one end of the angle adjustment chain (38) away from the twisting column (37); A lifting mechanism (4), the lifting mechanism (4) being located above the support plate (12) and being used to cooperate with the crushing mechanism (3) to change its crushing position; The lifting mechanism (4) comprises a lifting support plate (41), the lifting support plate (41) is located at the center of a side of the support plate (12) away from the carrying platform (14), and six groups of extension plates are extended from the lifting support plate (41); Three groups of lifting members are provided between the lifting support plate (41) and the hollow rotating toothed disc (22), for lifting the lifting support plate (41) to drive the material breaking mechanism (3) to move vertically; The lifting member includes a lifting plate (44), the lifting plate (44) is attached to the extension plate on the lifting support plate (41) near the side of the hollow rotating toothed disc (22), a threaded rod (451) is provided in the middle of the lifting plate (44), and a lifting rotating motor (45) is provided at the other end of the threaded rod (451) away from the lifting support plate (41); A surface material-diverting mechanism (5) is located between the material-breaking mechanism (3) and the rotating cover (2) and is used to cooperate with the rotating cover (2) to gather the materials toward the center.

2. The industrial silicon smelting auxiliary device according to claim 1, characterized in that: The side of the open heat insulation cover (21) away from the support plate (12) is attached to the bearing platform (14), and the end of the open heat insulation cover (21) attached to the bearing platform (14) is provided with two groups of bottom edge rings (24). A plurality of balls (25) are placed between the bearing platform (14) and the open heat insulation cover (21), and the balls (25) are placed between the two groups of bottom edge rings (24). The outer periphery of the hollow rotating gear disc (22) is engaged with three groups of rotating parts for cooperating with the balls (25) to rotate the open heat insulation cover (21) placed on the bearing platform (14).

3. The industrial silicon smelting auxiliary device according to claim 2, characterized in that: The three groups of rotating parts are arranged in a circular array on the circumferential side of the open heat insulation cover (21), and the rotating parts include a rotating motor (23). An extension rod (231) is provided on the rotating shaft of the rotating motor (23), and a fixing frame (233) is provided in the middle of the extension rod (231). One end of the fixing frame (233) away from the connection of the extension rod (231) is fixedly connected to the carrying platform (14), and one end of the extension rod (231) away from the rotating motor (23) is provided with a rotating gear (232), and the rotating gear (232) is engaged with the hollow rotating gear disc (22).

4. The industrial silicon smelting auxiliary device according to claim 2, characterized in that: The second bevel gear (34) is meshed with the first bevel gear (33). A transmission chain (35) is also provided on the second bevel gear (34). An auger rotation motor (36) is provided at the other end of the transmission chain (35) away from the second bevel gear (34).

5. The industrial silicon smelting auxiliary device according to claim 4, characterized in that: The adjusting member further comprises three groups of arc-shaped gusset plates (310), both ends of which are rotatably connected to the ends of the adjacent fixing pins (321) on the circumferential array of the scrap lifting members, so as to fix the three groups of the scrap lifting members.

6. The industrial silicon smelting auxiliary device according to claim 4, characterized in that: A plurality of connecting columns (42) are provided on the extension plate, wherein the connecting columns (42) are perpendicular to the carrying platform (14) and are arranged in a circumferential array around the open heat shield (21), one end of the connecting column (42) is fixedly connected to the lifting support plate (41), and the other end of the connecting column (42) away from the lifting support plate (41) is fixedly connected to the auger rotation motor (36) and the angle adjustment motor (39), and a sliding guide column (43) is provided in the middle of the connecting column (42), and the end of the sliding guide column (43) away from the connecting column (42) is fixedly connected to the open heat shield (21).

7. The industrial silicon smelting auxiliary device according to claim 5, characterized in that: A plurality of connecting rods (46) are further provided in the middle of the circular ring of the lifting support plate (41), one end of the connecting rod (46) is fixedly connected to the lifting support plate (41), and the other end of the connecting rod (46) away from the lifting support plate (41) is provided with a lifting connection block (48), and the lifting connection block (48) is fixedly connected to the periphery of the arc-shaped buckle plate (310), and a guide column (47) is provided in the middle of the connecting rod (46), and one end of the guide column (47) is fixedly connected to the side of the hollow rotating gear disc (22) away from the lifting support plate (41).

8. The industrial silicon smelting auxiliary device according to claim 2, characterized in that: The surface material-digging mechanism (5) comprises a material-digging support plate (51), the material-digging support plate (51) is located above the inner cavity of the material-receiving bowl (15), and a plurality of telescopic rods (52) are provided on the material-digging support plate (51), one end of the telescopic rod (52) is fixedly connected to the material-digging support plate (51), and the other end of the telescopic rod (52) is fixedly connected to the hollow rotating toothed disc (22). A pressure spring (53) penetrated by the telescopic rod (52) is provided between the hollow rotating toothed disc (22) and the material-digging support plate (51), and a plurality of arc-shaped through holes are also provided on the material-digging support plate (51). The arcuate through groove (511) is arranged in a circular array on the material-diverting support plate (51); a plurality of material-diverting plates (54) are provided on the other side of the material-diverting support plate (51) away from the telescopic rod (52); the material-diverting plates (54) are radially distributed; a rotating column (55) is provided at one end of the material-diverting plate (54); the rotating column (55) is rotatably connected to the material-diverting support plate (51); an arcuate guide column (541) is provided at the other end of the material-diverting plate (54) away from the rotating column (55); the arcuate guide column (541) is passed into the arcuate through groove (511).

9. The industrial silicon smelting auxiliary device according to claim 8, characterized in that: The material-diverting plate (54) has a trapezoidal structure, and the length of one side of the material-diverting plate (54) close to the center of the material-diverting support plate (51) is smaller than the other side.

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