CN212024787U

CN212024787U - High-temperature heating device for purifying metallic silicon

Info

Publication number: CN212024787U
Application number: CN202020604598.6U
Authority: CN
Inventors: 戴文伟; 郑维江; 林霞; 胡满根
Original assignee: Jiangle Sanjing New Material Co ltd
Current assignee: Jiangle Sanjing New Material Co ltd
Priority date: 2020-04-21
Filing date: 2020-04-21
Publication date: 2020-11-27
Anticipated expiration: 2030-04-21

Abstract

The utility model discloses a high temperature heating device of purification metallic silicon, including device body, apron and crucible, device body upper end is equipped with the connecting plate, and the other end of connecting plate is connected with the apron to be equipped with the heat insulating board in the connecting plate, the both ends of apron are connected with the slag charge adder, and the upper end of slag charge adder is equipped with the connecting pipe, the slag charge adder outside is connected with the inclined plane pipe, and the other end of inclined plane pipe is connected with the silicon briquette charging means, the apron front end is equipped with closed arc mechanism, and the rear end of apron is equipped with vibrating motor, device body bottom is equipped with the mounting bracket. This high temperature heating device of purification metallic silicon responds with the mechanism of aerifing through closing arc mechanism, makes the continuous stirring that overturns of raw materials in the crucible, and the gas in the mechanism of aerifing simultaneously contains oxygen, argon and steam, promotion stirring effect that can be further to at the in-process of gyration, the raw materials with be heated more evenly, increased holistic practicality.

Description

High-temperature heating device for purifying metallic silicon

Technical Field

The utility model relates to a silicon purification technical field specifically is a high temperature heating device of purification metallic silicon.

Background

Metallic silicon is used for smelting ferrosilicon as an alloy element in the steel industry in a large quantity, is used as a reducing agent in smelting various metals, is also a good component in aluminum alloy, most cast aluminum alloys contain silicon which is a raw material of ultrapure silicon in the electronic industry, and electronic devices made of ultrapure semiconductor monocrystalline silicon have the advantages of small volume, light weight, good reliability, long service life and the like.

However, it is difficult to effectively melt silicon, perform rogue processing and directional solidification in the same apparatus, and a high temperature heating apparatus for purifying silicon metal is required because a large amount of impurities in the crucible continuously enter the silicon melt due to the heat energy provided by the heating source being conducted to the silicon material contained in the crucible through the crucible wall, thereby causing contamination of impurities and affecting the purification effect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high temperature heating device of purification metallic silicon to propose in solving above-mentioned background art and cause crucible impurity constantly to get into silicon melt in a large number, thereby produce impurity and stain the problem that influences the purification effect.

In order to achieve the above object, the utility model provides a following technical scheme: a high-temperature heating device for purifying metallic silicon comprises a device body, a cover plate and a crucible, wherein the upper end of the device body is provided with a connecting plate, the other end of the connecting plate is connected with the cover plate, a heat insulation plate is arranged in the connecting plate, two ends of the cover plate are connected with slag feeders, the upper ends of the slag feeders are provided with connecting pipes, the outer sides of the slag feeders are connected with inclined plane pipes, the other ends of the inclined plane pipes are connected with silicon block feeders, the front end of the cover plate is provided with an arc closing mechanism, the rear end of the cover plate is provided with a vibration motor, the bottom end of the device body is provided with a mounting frame, the bottom end of the mounting frame is connected with a power supply, the mounting frame is sequentially provided with a heating mechanism and a heat sensing mechanism from outside to inside, the upper end of the mounting frame is provided with a filter, and the bottom of the device body is connected with an inflating mechanism, the outer side of the connecting plate is connected with a clamping plate, the two ends of the clamping plate are connected with sleeves, a bidirectional threaded rod is connected in each sleeve, and the middle end of the bidirectional threaded rod is connected with a rotating rod.

Preferably, the connecting plate is fixedly connected with the filter frame, the connecting plate is fixedly connected with the cover plate, and the connecting plate is attached to the heat insulation plate.

Preferably, the heating mechanism and the thermal sensing mechanism are electrically connected with the power supply, and the length of the heating mechanism is greater than that of the crucible.

Preferably, the filter frame is fixedly connected with the mounting frame, and the filter frame is inclined.

Preferably, the inflation mechanism is fixedly connected with the crucible, and the central point of the inflation mechanism and the central point of the arc closing mechanism are positioned on the same vertical line.

Preferably, the upper end and the lower end of the bidirectional threaded rod are symmetrically provided with sleeves, the sleeves are fixedly connected with the clamping plate, and the clamping plate is movably connected with the connecting plate.

Compared with the prior art, the beneficial effects of the utility model are that: the high-temperature heating device for purifying the metallic silicon,

1. the arc closing mechanism corresponds to the inflating mechanism, so that the raw materials in the crucible are continuously turned and stirred, meanwhile, the gas in the inflating mechanism contains oxygen, argon and water vapor, the stirring effect can be further improved, and in the rotating process, the raw materials and the heated materials are more uniform, so that the overall practicability is improved;

2. the crucible and the whole device are heated doubly by the thermal sensing mechanism and the heating mechanism, so that the raw materials in the device are heated rapidly and can be kept to a certain value, the heat-preserving and high melting speed of the materials is increased, and the slagging, refining and purifying efficiency of the high-purity metal silicon is improved by the double heating method;

3. through driving the sleeve with two-way threaded rod simultaneously, make the grip block integrative with the sleeve paste tightly gradually with the vertical direction, can be stable carry out fixed seal to the device connector, the cooperation heat insulating board reduces thermal loss, can also play the buffering effect simultaneously, makes to paste tightly more between the connecting block to fixed knot constructs's stability has been increased.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is an enlarged schematic view of the area A of FIG. 1 according to the present invention;

fig. 3 is a schematic view of the cover plate of the present invention.

In the figure: 1. a device body; 2. a connecting plate; 3. a cover plate; 4. a slag feeder; 5. a connecting pipe; 6. A silicon block feeder; 7. an inclined plane pipe; 8. a closed arc mechanism; 9. a mounting frame; 10. a power supply; 11. a heating mechanism; 12. a protection plate; 13. a crucible; 14. a thermal sensing mechanism; 15. a filter frame; 16. a mixing zone; 17. an inflation mechanism; 18. a heat insulation plate; 19. a clamping plate; 20. a sleeve; 21. a bidirectional threaded rod; 22. Rotating the rod; 23. a vibration motor.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a high-temperature heating device for purifying metallic silicon comprises a device body 1, a cover plate 3 and a crucible 13, wherein the upper end of the device body 1 is provided with a connecting plate 2, the other end of the connecting plate 2 is connected with the cover plate 3, a heat insulation plate 18 is arranged in the connecting plate 2, two ends of the cover plate 3 are connected with a slag feeder 4, the upper end of the slag feeder 4 is provided with a connecting pipe 5, the outer side of the slag feeder 4 is connected with an inclined plane pipe 7, the other end of the inclined plane pipe 7 is connected with a silicon block feeder 6, the front end of the cover plate 3 is provided with an arc closing mechanism 8, the rear end of the cover plate 3 is provided with a vibration motor 23, the bottom end of the device body 1 is provided with a mounting frame 9, the bottom end of the mounting frame 9 is connected with a power supply 10, the mounting frame 9 is sequentially provided with a heating mechanism 11 and a thermal sensing mechanism 14 from outside to inside, protection plate 12 is equipped with in the device body 1 outside, and just device body 1 bottom is connected with mechanism 17 of aerifing, and the outside of connecting plate 2 is connected with grip block 19, and the both ends of grip block 19 are connected with sleeve 20, and sleeve 20 in-connection has two-way threaded rod 21, and the middle-end of two-way threaded rod 21 is connected with dwang 22.

The connecting plate 2 is fixedly connected with the filter frame 15, the connecting plate 2 is fixedly connected with the cover plate 3, the connecting plate 2 is in fit connection with the heat insulation plate 18, the cover plate 3 is driven to vibrate through the vibration motor 23, so that the filter frame 15 connected with the cover plate 3 vibrates together, the filtering efficiency of the filter frame 15 can be accelerated, and the heat insulation plate 18 can play a role in buffering while insulating the connection part of the connecting plate 2, so that the overall stability is improved;

the heating mechanism 11 and the heat sensing mechanism 14 are electrically connected with the power supply 10, the length of the heating mechanism 11 is greater than that of the crucible 13, the heating mechanism 11 and the heat sensing mechanism 14 are powered by the power supply 10, and the heat sensing mechanism 14 is matched with the heating mechanism 11, so that the device body 1 is continuously heated at high temperature, the temperature keeping and high melting speed of the material is increased, and the slagging, refining and purifying efficiency of the high-purity silicon metal is improved by a double heating method;

the filter frame 15 is fixedly connected with the mounting frame 9, the filter frame 15 is inclined, the filter frame 15 is fixed on two sides of the upper end of the device body 1 through the mounting frame 9, the material is filtered through a screen in the filter frame 15, the material containing impurities falls into the filter frame 15, the material is guided by the shape structure of the filter frame 15, the material uniformly falls into the mixing area 16, and the impurities are prevented from continuously entering a large amount of silicon melt to generate impurity contamination, so that the purification effect is improved;

the aeration mechanism 17 is fixedly connected with the crucible 13, the central point of the aeration mechanism 17 and the central point of the arc-closing mechanism 8 are positioned on the same vertical line, the aeration mechanism 17 and the arc-closing mechanism 8 correspond to each other, so that the materials in the mixing area 16 are lifted, turned and mixed, meanwhile, the aeration mechanism 17 is doped with gases such as oxygen, argon, water vapor and the like, so as to purify the molten pool and further strengthen the electromagnetic induction stirring function, thereby increasing the refining efficiency;

the upper and lower both ends symmetry of two-way threaded rod 21 is provided with sleeve 20, and sleeve 20 is fixed connection with grip block 19, and grip block 19 is swing joint with connecting plate 2, through the both ends block with grip block 19 in the outside of connecting plate 2, and make two-way threaded rod 21 at sleeve 20 internal rotation through dwang 22, make grip block 19 and connecting plate 2 paste tightly gradually, can be fine fix device body 1 and apron 3, it is convenient to dismantle, be convenient for maintain device body 1 wholly.

The working principle is as follows: when the high-temperature heating device for purifying the metal silicon is used, firstly, raw materials are put into the device body 1, then, two ends of the clamping plate 19 are clamped at the outer side of the connecting plate 2, the two-way threaded rod 21 rotates in the sleeve 20 through the rotating rod 22, the clamping plate 19 is gradually attached to the connecting plate 2, the device body 1 and the cover plate 3 can be well fixed, the sealing effect can be improved, the disassembly is convenient, the whole device body 1 is convenient to maintain, meanwhile, the materials are added in the slag adding device 4 and the silicon block feeding device 6 according to the proportion, the connecting pipe 5 can increase the sealing performance of the combining surface of the slag adding device 4, the inclined pipe 7 can increase the self circulation, when the raw materials and the fillers enter the device body 1 and pass through the filter frame 15, the filter frame 15 is fixed at two sides of the upper end of the device body 1 through the mounting frame 9, the vibration motor 23 drives the cover plate 3 to vibrate, the filtering frame 15 connected with the cover plate 3 vibrates together, the filtering efficiency of the filtering frame 15 can be accelerated, the heat insulation plate 18 can play a role in buffering while insulating the joint of the connecting plate 2, the materials are filtered through the screen in the filtering frame 15, the materials containing impurities fall into the filtering frame 15 and are guided by the shape structure of the filtering frame 15, the materials uniformly fall into the mixing zone 16, and the impurities are prevented from continuously entering a large amount of silicon melt to generate impurity contamination, so that the purification effect is improved, when heating is needed, the heating mechanism 11 and the heat induction mechanism 14 are powered by the power supply 10, the heat induction mechanism 14 is matched with the heating mechanism 11, the high-temperature heating is continuously carried out in the device body 1, the temperature of the materials is heated to a high melting speed, and by a double heating method, make slagging refining and purification efficiency promotion of high-purity metal silicon, guard plate 12 can separate the temperature protection to device body 1, when preventing the heat loss, can also avoid the staff touching and burn, it corresponds each other with arc closing mechanism 8 to construct through aerifing mechanism 17, make the material in crucible 13 go up and down the upset mix, aerify mechanism 17 simultaneously 16 at the mixed zone and mix oxygen, argon, gas such as steam, carry out purification treatment and further strengthen the electromagnetic induction stirring function to the molten bath, thereby refined efficiency has been increased.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high temperature heating device of purification metallic silicon, includes device body (1), apron (3) and crucible (13), its characterized in that: the device is characterized in that a connecting plate (2) is arranged at the upper end of the device body (1), the other end of the connecting plate (2) is connected with a cover plate (3), a heat insulation plate (18) is arranged in the connecting plate (2), two ends of the cover plate (3) are connected with a slag feeder (4), the upper end of the slag feeder (4) is provided with a connecting pipe (5), the outer side of the slag feeder (4) is connected with an inclined plane pipe (7), the other end of the inclined plane pipe (7) is connected with a silicon block feeder (6), the front end of the cover plate (3) is provided with an arc closing mechanism (8), the rear end of the cover plate (3) is provided with a vibration motor (23), a mounting frame (9) is arranged at the bottom end of the device body (1), the bottom end of the mounting frame (9) is connected with a power supply (10), and the mounting frame (9), and mounting bracket (9) upper end is equipped with filter frame (15), device body (1) in-connection has crucible (13), and is equipped with mixing area (16) in crucible (13), device body (1) outside is equipped with guard plate (12), and device body (1) bottom is connected with inflating mechanism (17), the outside of connecting plate (2) is connected with grip block (19), and the both ends of grip block (19) are connected with sleeve (20), sleeve (20) in-connection has two-way threaded rod (21), and the middle-end of two-way threaded rod (21) is connected with dwang (22).

2. The high-temperature heating apparatus for purifying metallic silicon as set forth in claim 1, wherein: the connecting plate (2) is fixedly connected with the filter frame (15), the connecting plate (2) is fixedly connected with the cover plate (3), and the connecting plate (2) is attached to the heat insulation plate (18).

3. The high-temperature heating apparatus for purifying metallic silicon as set forth in claim 1, wherein: the heating mechanism (11), the heat sensing mechanism (14) and the power supply (10) are electrically connected, and the length of the heating mechanism (11) is greater than that of the crucible (13).

4. The high-temperature heating apparatus for purifying metallic silicon as set forth in claim 1, wherein: the filter frame (15) is fixedly connected with the mounting rack (9), and the filter frame (15) is inclined.

5. The high-temperature heating apparatus for purifying metallic silicon as set forth in claim 1, wherein: the gas charging mechanism (17) is fixedly connected with the crucible (13), and the central point of the gas charging mechanism (17) and the central point of the arc closing mechanism (8) are positioned on the same vertical line.

6. The high-temperature heating apparatus for purifying metallic silicon as set forth in claim 1, wherein: the upper end and the lower end of the bidirectional threaded rod (21) are symmetrically provided with sleeves (20), the sleeves (20) are fixedly connected with the clamping plate (19), and the clamping plate (19) is movably connected with the connecting plate (2).