CN114923001B - Process gas conveying equipment for silicon carbide production - Google Patents
Process gas conveying equipment for silicon carbide production Download PDFInfo
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- CN114923001B CN114923001B CN202210470300.0A CN202210470300A CN114923001B CN 114923001 B CN114923001 B CN 114923001B CN 202210470300 A CN202210470300 A CN 202210470300A CN 114923001 B CN114923001 B CN 114923001B
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- plate
- gas
- side wall
- pair
- silicon carbide
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 29
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 229910010271 silicon carbide Inorganic materials 0.000 title claims abstract description 27
- 238000007789 sealing Methods 0.000 claims abstract description 29
- 238000005192 partition Methods 0.000 claims abstract description 26
- 238000010438 heat treatment Methods 0.000 claims description 49
- 238000001125 extrusion Methods 0.000 claims description 27
- 238000004140 cleaning Methods 0.000 claims description 16
- 238000003860 storage Methods 0.000 claims description 13
- 238000013016 damping Methods 0.000 claims description 7
- 238000007790 scraping Methods 0.000 claims description 4
- 230000002123 temporal effect Effects 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 238000009423 ventilation Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 67
- 238000006243 chemical reaction Methods 0.000 description 29
- 230000000694 effects Effects 0.000 description 12
- 239000000428 dust Substances 0.000 description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 239000011863 silicon-based powder Substances 0.000 description 6
- 239000012495 reaction gas Substances 0.000 description 5
- 239000002994 raw material Substances 0.000 description 4
- 230000000087 stabilizing effect Effects 0.000 description 4
- 238000005243 fluidization Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000002006 petroleum coke Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007500 overflow downdraw method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000005092 sublimation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/16—Rigid blades, e.g. scrapers; Flexible blades, e.g. wipers
- B08B1/165—Scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/34—Excess-flow valves in which the flow-energy of the flowing medium actuates the closing mechanism
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0603—Multiple-way valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/08—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
- F16L53/30—Heating of pipes or pipe systems
- F16L53/35—Ohmic-resistance heating
- F16L53/38—Ohmic-resistance heating using elongate electric heating elements, e.g. wires or ribbons
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Furnace Details (AREA)
- Silicon Compounds (AREA)
Abstract
The invention belongs to the technical field of silicon carbide production, in particular to process gas conveying equipment for silicon carbide production, which comprises a gas pipeline; the inner side wall of the gas pipeline is fixedly connected with a partition plate; the end part of the partition plate is rotatably connected with a drainage plate; a first chute is formed in the position of the drainage plate at the upper end and the lower end of the inner side wall of the gas pipeline; a sealing plate is slidably connected inside each pair of first sliding grooves; the pair of sealing plates are respectively sleeved at the upper end and the lower end of the drainage plate; through utilizing the rotation of drainage board, two sets of valves of cooperation can carry required gas, can directly carry out sealing operation to another passageway through the air current at the in-process of carrying gas simultaneously, make gas piping carry the back to gas and keep sealing state voluntarily, reduce the gas leakage phenomenon that gas appears after carrying, save the uncertainty that automatic valve appears, reduce the loaded down with trivial details operation that the staff opened and shut the pipeline alone simultaneously, increase production efficiency.
Description
Technical Field
The invention belongs to the technical field of silicon carbide production, and particularly relates to process gas conveying equipment for silicon carbide production.
Background
Silicon carbide is a raw material with stable chemical property, high heat conductivity coefficient and good wear resistance, has wide application in the manufacture of high-grade refractory materials, and the preparation of the existing silicon carbide mainly comes from artificial synthesis, and mainly comprises a sublimation method and a fusion method.
One chinese patent publication No. CN112978732a discloses a method and a dedicated production system for producing silicon carbide, comprising purifying a liquid silicon raw material and a liquid carbon raw material in a purifying apparatus; drying the purified liquid mixed raw material in a drying and crushing device through high-temperature inert gas, and then crushing; the crushed materials enter a single-furnace multi-layer fluidization melting furnace, the uppermost fluidized bed layer in the furnace sequentially enters the lower fluidized bed layer, and the melting reaction is gradually carried out on each fluidized bed layer until silicon carbide is produced, wherein inert gas is used as fluidization gas to keep the materials in a fluidization state.
In the prior art, the gas in the reaction furnace is often required to be replaced in the production process of silicon carbide so as to react with carbon powder and silicon powder, meanwhile, the circuit system of the existing pipeline automatic valve can be influenced due to higher temperature in the production process of silicon carbide, the service life of equipment is influenced easily due to the phenomenon of short circuit and the like, and the steps of manually opening and closing the valve of the inlet and outlet pipeline are complicated, so that the production efficiency is influenced.
To this end, the invention provides a process gas delivery apparatus for silicon carbide production.
Disclosure of Invention
In order to overcome the deficiencies of the prior art, at least one technical problem presented in the background art is solved.
The technical scheme adopted for solving the technical problems is as follows: the invention relates to a process gas conveying device for silicon carbide production, which comprises a gas pipeline; the inner side wall of the gas pipeline is fixedly connected with a partition plate; the end part of the partition plate is rotatably connected with a drainage plate; a first chute is formed in the position of the drainage plate at the upper end and the lower end of the inner side wall of the gas pipeline; a sealing plate is slidably connected inside each pair of first sliding grooves; the pair of sealing plates are respectively sleeved at the upper end and the lower end of the drainage plate; the middle parts of the pair of sealing plates are provided with vent holes; a pair of valves are arranged on the side wall of the vent hole; the two groups of valves are arranged in opposite directions; during operation, the rotation of the drainage plate is utilized, two groups of valves are matched to convey required gas, meanwhile, the gas can be directly sealed to another channel through air flow in the process of conveying the gas, so that a gas pipeline automatically maintains a sealing state after the gas is conveyed, the gas leakage phenomenon of the gas after the gas is conveyed is reduced, the uncertainty of an automatic valve is eliminated, and the complicated operation that workers independently open and close the pipeline is reduced, so that the production efficiency is improved.
Preferably, two ends of the side wall of the vent hole are respectively hinged with a pair of one-to-one rotary shafts; the first rotating shaft is connected with the vent hole through a torsion spring; the valve is fixedly connected to the side wall of the first rotating shaft; a first magnet and a second magnet are fixedly connected inside the end part of the valve, which is close to the valve, respectively; the first magnet and the second magnet attract each other magnetically; during operation, the magnetic force of magnet No. one and magnet No. two is inhaled mutually, cooperates torsional spring torsion to contact one-to-one pivot, increases sealed effect, reduces gas and gets into the reacting furnace from gas piping, causes the influence to the reaction, and the sealed space that cooperation drainage board formed simultaneously can make things convenient for the staff to drive gas piping and different reaction gas tank according to required reaction gas's difference to be connected, reduces the gas leakage condition.
Preferably, limiting plates are fixedly connected to the positions, close to the end parts, of the valves, facing the openings; the pair of limiting plates are in contact with each other; a plurality of groups of damping plates are fixedly connected to the side walls of the limiting plates; during operation, the pair of limiting plates can further provide support for sealing the valve, the sealing effect between the pair of valves is enhanced, normal passage of air flow is not blocked, limiting is provided for the valve, deformation of the valve under air flow impact is reduced, and air flow leakage is caused.
Preferably, the top surface of the gas pipeline is fixedly connected with a storage box; the storage box is communicated with the gas pipeline; the inside of the storage box is connected with a heating wire in a sliding manner; an electric push rod is fixedly connected to the inner top surface of the storage box; the top surface of the heating wire is fixedly connected to the output end of the electric push rod; when the device works, the heating wire is used for heating the gas, so that the phenomenon that the colder gas directly enters the reaction furnace to cause damage to the reaction furnace in a sudden-cold and sudden-hot environment to influence the subsequent reaction on carbon powder and silicon powder can be reduced.
Preferably, the top surface of the partition plate is provided with a limit groove corresponding to the plurality of groups of heating wires in a moving way; a second chute is formed between the pair of limit grooves and positioned in the partition plate; the inside of the second chute is connected with an extrusion plate in a sliding way; the extrusion plate is connected with the second chute through a spring; a third sliding groove is formed in the partition plate between the second sliding groove and the limiting groove; a fixed plate is connected inside the third chute in a sliding way; the bottom end of the extrusion plate is fixedly connected with a first connecting rope; the other end of the first connecting rope is wound on the drainage plate shaft; during operation, utilize the extrusion of stripper plate to the fixed plate, can keep the stability of heater strip when the air current passes through, reduce the heater strip and appear sliding and lead to producing the collision between the multiunit heater strip, cause equipment to damage, influence the heating effect of heater strip to required gas.
Preferably, the side walls of the fixed plates, which are close to the limiting grooves, are provided with rubber plates; a fourth chute is formed in the side wall, close to the fixed plate, of the rubber plate; the fixing plate slides in the fourth chute; the fourth sliding groove is connected with the fixing plate through a spring; a fifth chute is formed in the side wall, away from the fixed plate, of the rubber plate; the fifth sliding groove is arranged in a wave shape; during operation, the rubber plate arranged on the side wall of the fixing plate can further contact the fifth sliding groove with the heating wire, the contact area between the fifth sliding groove and the heating wire can be increased, and the stabilizing effect of the heating wire is improved.
Preferably, a pair of sixth sliding grooves are formed in the side walls, close to the limiting grooves, of the rubber plates; the temporal part of the sixth chute is connected with a cleaning plate in a sliding way; the side wall of the cleaning plate far away from the rubber plate is fixedly connected with a plurality of groups of scraping plates; the end parts of the cleaning plates, which are positioned in the sixth sliding chute, are fixedly connected with a second connecting rope; the other end of the second connecting rope penetrates through the fixing plate and is connected to the side wall, close to the fixing plate, of the rubber plate; during operation, the scraper blade can be driven to contact the side wall of the heating wire by utilizing the movement of the cleaning plate, dust existing on the side wall of the heating wire is scraped, dust existing on the side wall of the heating wire is reduced, support is provided for fixing the side wall of the heating wire by the rubber plate, and the fixing effect of the heating wire is further improved.
Preferably, a pair of seventh sliding grooves are formed in the side wall of the drainage plate; a limiting block is connected inside the seventh sliding groove in a sliding manner; the end parts of the pair of limiting blocks are fixedly connected to the upper surface and the lower surface of the partition plate; during operation, the flow guiding plate can be limited by utilizing the rotation of the flow guiding plate on the limiting block, the flow guiding plate is reduced to move in place under the action of air flow, the air flow is leaked, the reaction process of carbon powder and silicon powder in the subsequent reaction furnace is influenced, and the stability of the equipment in operation is improved.
Preferably, a plurality of groups of the side walls of the fifth sliding grooves are provided with eighth sliding grooves; the eighth chute is semicircular and slides in the limiting groove; during operation, the opening of the eighth chute can be used for adsorbing after contacting with the heating wire, so that the stabilizing effect on the heating wire is further improved, the movement of the heating wire in the air flow moving process is reduced, and the stable working environment is maintained.
Preferably, the ends of the fixed plates, which are close to the extrusion plates, are respectively and rotatably connected with a roller; the roller is contacted with the extrusion plate; during operation, the rotation that utilizes the gyro wheel can assist the fixed plate to remove, reduces the condition that the card was duned to appear between fixed plate and the stripper plate, increases equipment stability.
The beneficial effects of the invention are as follows:
1. according to the technical gas conveying equipment for silicon carbide production, required gas can be conveyed by utilizing the rotation of the drainage plate and matching with two groups of valves, and meanwhile, the other channel can be directly sealed by air flow in the process of conveying the gas, so that a gas pipeline can automatically keep a sealing state after the gas is conveyed, the gas leakage phenomenon of the gas after the gas is conveyed is reduced, the uncertainty of an automatic valve is eliminated, the complicated operation that a worker independently opens and closes the pipeline is reduced, and the production efficiency is increased.
2. According to the technical gas conveying equipment for silicon carbide production, the first magnet and the second magnet are attracted by magnetic force and are matched with torsion force of the torsion spring to contact the first rotating shaft, so that the sealing effect is improved, gas is reduced from entering the reaction furnace from the gas pipeline, the reaction is influenced, and meanwhile, the sealing space formed by the matching of the drainage plates can facilitate workers to drive the gas pipeline to connect different reaction gases, so that the gas leakage condition is reduced.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a schematic view of a seal plate according to the present invention;
FIG. 4 is a schematic view of the valve of the present invention;
FIG. 5 is a cross-sectional view of a divider plate in the present invention;
FIG. 6 is a cross-sectional view of a fixing plate according to the present invention;
fig. 7 is a schematic structural view of a second embodiment;
in the figure: 1. a gas conduit; 11. a partition plate; 12. a drainage plate; 13. a first chute; 14. a sealing plate; 15. a vent hole; 2. a valve; 21. a first rotating shaft; 22. a first magnet; 23. a second magnet; 3. a limiting plate; 31. a damping plate; 4. a storage box; 41. a heating wire; 42. an electric push rod; 5. a limit groove; 51. a second chute; 52. an extrusion plate; 53. a third chute; 54. a fixing plate; 55. a first connecting rope; 6. a rubber plate; 61. a fourth chute; 62. a fifth chute; 7. a sixth chute; 71. a cleaning plate; 72. a scraper; 73. a second connecting rope; 8. a limiting block; 81. a seventh chute; 9. a chute No. eight; 101. and a roller.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Example 1
As shown in fig. 1 to 2, a process gas delivery apparatus for silicon carbide production according to an embodiment of the present invention includes a gas pipe 1; the inner side wall of the gas pipeline 1 is fixedly connected with a partition plate 11; the end part of the partition plate 11 is rotatably connected with a drainage plate 12; the upper end and the lower end of the inner side wall of the gas pipeline 1 are provided with a first chute 13 at the position of the drainage plate 12; a sealing plate 14 is slidably connected inside the first sliding groove 13; a pair of sealing plates 14 are respectively sleeved at the upper end and the lower end of the drainage plate 12; a vent hole 15 is formed in the middle of the pair of sealing plates 14; a pair of valves 2 are arranged on the side wall of the vent hole 15; the two groups of valves 2 are arranged in opposite directions; during operation, carry carbon dust, silica flour into the reacting furnace by the staff and carry out the heating reaction, this moment is according to the inside temperature of reacting furnace, add silica and petroleum coke continuously, add salt and saw-dust, after continuing the heating, carry the required gas of reaction through gas duct 1, carry out clockwise rotation under the air current effect at the in-process of sending gas drainage plate 12, it carries out removal at spout 13 inside to drive closing plate 14 according to the removal of drainage plate 12, the air current can push to a pair of valve 2 that laminates each other in division board 11 top this moment, leave the space that enough gas passed through, a pair of valve 2 in division board 11 below because of setting with top valve 2 opposite direction, make valve 2 be close to each other under the air current impact, seal, conversely, in the extraction process, top a pair of valve 2 can seal it under the air current effect of division board 11 below, make the air current pass through, utilize the rotation of drainage plate 12, two sets of cooperation 2 can carry required gas, simultaneously can seal another valve 2 through the air current through direct to carry out the air current to seal operation in the air current in-process, make gas duct 1 carry out sealing operation after the automatic operation, keep the valve 1 to seal independently, the air duct carries out the sealed state, the phenomenon reduces the leak gas, the phenomenon is avoided and the independent operation is carried out, the personnel of the leak gas is reduced, and the automatic operation is reduced.
As shown in fig. 3 to 4, two ends of the side wall of the ventilation hole 15 are respectively hinged with a pair of number-equal rotating shafts 21; the first rotating shaft 21 is connected with the vent hole 15 through a torsion spring; the valve 2 is fixedly connected to the side wall of the first rotating shaft 21; a first magnet 22 and a second magnet 23 are fixedly connected inside the end part of the valve 2, which is close to the valve; the first magnet 22 and the second magnet 23 attract each other by magnetic force; during operation, in the reaction process of the reaction furnace, the gas is conveyed, the pair of valves 2 are attached again under the action of the torsion spring of the first rotating shaft 21, meanwhile, the magnetic force between the first magnet 22 and the second magnet 23 attracts each other to further drive the pair of valves 2 to attach, sealing is carried out, the magnetic force of the first magnet 22 and the magnetic force of the second magnet 23 are used for attracting each other, the torsion spring is matched to contact the first rotating shaft 21, sealing effect is improved, gas is reduced from the gas pipeline 1 to enter the reaction furnace, the reaction is influenced, and meanwhile, the sealing space formed by the drainage plate 12 is matched with the sealing space, so that workers can conveniently drive the gas pipeline 1 and different reaction gas tanks to connect according to different required reaction gases, and the gas leakage condition is reduced.
As shown in fig. 4, a pair of limiting plates 3 are fixedly connected to the positions, close to the end parts, facing the openings, of the valve 2; a pair of limit plates 3 are contacted with each other; a plurality of groups of damping plates 31 are fixedly connected to the side walls of the limiting plates 3; when the valve 2 is unfolded outwards under the impact of air flow, the damping plates 31 can be driven to normally move, the other group of valves 2 can block the air flow, the valve 2 is driven to be in contact with each other more tightly under the impact of the air flow, the limiting plates 3 are enabled to move mutually, the damping plates 31 can provide additional friction force for the limiting plates 3, the sealing of the valve 2 can be further supported by the limiting plates 3, the sealing effect between the valve 2 is enhanced, the normal passing of the air flow can not be blocked, the valve 2 is limited, deformation of the valve 2 under the impact of the air flow is reduced, and air flow leakage is caused.
As shown in fig. 1 to 2, the top surface of the gas pipeline 1 is fixedly connected with a storage box 4; the inside of the storage box 4 is communicated with the inside of the gas pipeline 1; a heating wire 41 is connected inside the storage box 4 in a sliding manner; an electric push rod 42 is fixedly connected to the inner top surface of the storage box 4; the top surface of the heating wire 41 is fixedly connected to the output end of the electric push rod 42; during operation, in the process of conveying the reaction gas through the gas pipeline 1, the electric push rod 42 can drive the heating wire 41 to move downwards, the electric push rod enters the upper part of the partition plate 11 to heat the passing air flow, the heating wire 41 is utilized to heat the gas, the colder gas can be reduced to directly enter the reaction furnace, the damage of the reaction furnace in a sudden-cold environment can be caused, and the subsequent reaction to carbon powder and silicon powder can be influenced.
As shown in fig. 5, the top surface of the partition plate 11 is provided with a limit groove 5 corresponding to the displacement of the plurality of groups of heating wires 41; a second chute 51 is arranged in the partition plate 11 between the pair of limit grooves 5; the second chute 51 is internally and slidably connected with an extrusion plate 52; the extrusion plate 52 is connected with the second chute 51 through a spring; a third sliding groove 53 is formed between the second sliding groove 51 and the limiting groove 5 and positioned in the partition plate 11; the inside of the third chute 53 is slidably connected with a fixing plate 54; a first connecting rope 55 is fixedly connected to the bottom end of the extruding plate 52; the other end of the first connecting rope 55 is wound on the shaft of the drainage plate 12; during operation, in the rotation process of the drainage plate 12, the first connecting rope 55 is pulled, the extrusion plate 52 is driven to move downwards, the side wall of the fixed plate 54 is extruded, the heating wire 41 can be extruded by the fixed plate 54 in the limiting groove 5 to be fixed, the stability of the heating wire 41 is kept when the air flow passes, meanwhile, after the air passes, the drainage plate 12 is normally reset, the extrusion plate 52 is reset under the action of a spring, the fixed plate 54 loses extrusion force, the heating wire 41 is conveniently recycled, the extrusion plate 52 is utilized for extruding the fixed plate 54, the stability of the heating wire 41 can be kept when the air flow passes, the occurrence of sliding of the heating wire 41 is reduced, the occurrence of collision among a plurality of groups of heating wires 41 is avoided, equipment damage is caused, and the heating effect of the heating wire 41 on required air is affected.
As shown in fig. 5 to 6, a plurality of groups of the fixing plates 54 are respectively provided with a rubber plate 6 on the side wall close to the limit groove 5; a fourth sliding groove 61 is formed in the side wall, close to the fixed plate 54, of the rubber plate 6; the fixing plate 54 slides inside the fourth sliding groove 61; the fourth sliding groove 61 is connected with the fixing plate 54 through a spring; a fifth chute 62 is formed on the side wall of the rubber plate 6 far away from the fixed plate 54; the fifth chute 62 is arranged in a wave shape; during operation, in the moving process of the fixing plate 54, the rubber plate 6 and the side wall of the heating wire 41 can be driven to contact, meanwhile, the friction force between the heating wire 41 and the five-number sliding groove 62 formed in the side wall of the rubber plate 6 can be increased, the thrust generated by moving the extruding plate 52 can be buffered by the spring arranged between the four-number sliding groove 61 and the fixing plate 54, the rubber plate 6 arranged on the side wall of the fixing plate 54 can be utilized to further contact the five-number sliding groove 62 with the heating wire 41, the contact area between the five-number sliding groove 62 and the heating wire 41 can be increased, and the stabilizing effect of the heating wire 41 is improved.
As shown in fig. 6, a pair of sixth sliding grooves 7 are formed in the side walls, close to the limiting grooves 5, of the rubber plates 6; the temporal part of the sixth chute 7 is slidably connected with a cleaning plate 71; the side wall of the cleaning plate 71 far away from the rubber plate 6 is fixedly connected with a plurality of groups of scraping plates 72; a second connecting rope 73 is fixedly connected to the end part of the cleaning plate 71 positioned in the sixth chute 7; the other end of the second connecting rope 73 passes through the fixed plate 54 and is connected to the side wall of the rubber plate 6, which is close to the fixed plate 54; during operation, when the heater strip 41 is placed in the limiting groove 5, the second connecting rope 73 can be driven to move by utilizing the movement of the rubber plate 6, the cleaning plate 71 is pulled, the cleaning plate 71 moves in the sixth sliding groove 7, the scraper 72 can contact with the side wall of the heater strip 41 at the moment, dust existing on the side wall is scraped off, the scraper 72 can be driven to contact with the side wall of the heater strip 41 by utilizing the movement of the cleaning plate 71, the dust existing on the side wall of the heater strip 41 is scraped off, the dust existing on the side wall of the heater strip 41 is reduced, support is provided for fixing the side wall of the heater strip 41 by the rubber plate 6, and the fixing effect on the heater strip 41 is further improved.
As shown in fig. 2, a pair of seventh sliding grooves 81 are formed in the side wall of the drainage plate 12; a limiting block 8 is connected inside the seventh sliding groove 81 in a sliding manner; the end parts of the pair of limiting blocks 8 are fixedly connected to the upper surface and the lower surface of the partition plate 11; during operation, in the rotation process of the drainage plate 12, the drainage plate 12 can move on the limiting block 8, the protrusions on the seventh sliding groove 81 can block the drainage plate 12, limit the drainage plate 12 by utilizing the rotation of the drainage plate 12 on the limiting block 8, reduce the leakage of air flow caused by the fact that the drainage plate 12 moves in place under the action of the air flow, influence the reaction process of carbon powder and silicon powder in a subsequent reaction furnace, and improve the stability of equipment in operation.
As shown in fig. 6, a plurality of groups of the side walls of the fifth sliding grooves 62 are provided with eighth sliding grooves 9; the eighth chute 9 is semicircular and slides in the limit groove 5; during operation, after the heater strip 41 is placed in the limiting groove 5, the rubber plate 6 can be driven to displace during movement of the fixing plate 54, the eight sliding grooves 9 are enabled to contact with the side wall of the heater strip 41, the eight sliding grooves 9 deform under the action of extrusion force, internal air is enabled to be discharged outwards, the opening of the eight sliding grooves 9 can be adsorbed after being contacted with the heater strip 41, the stabilizing effect on the heater strip 41 is further improved, movement of the heater strip 41 in the air flow moving process is reduced, and stable working environment is maintained.
Example two
As shown in fig. 7, in comparative example one, another embodiment of the present invention is: the ends of the fixed plates 54, which are close to the extrusion plates 52, are respectively and rotatably connected with a roller 101; the roller 101 is in contact with the pressing plate 52; during operation, in the rotation process of the drainage plate 12, the first connecting rope 55 drives the extrusion plate 52 to move downwards, at this moment, the contact of the roller 101 and the extrusion plate 52 can enable the extrusion plate 52 to rotate, the auxiliary fixing plate 54 moves, the rotation of the roller 101 can assist the fixing plate 54 to move, the situation that a clamping and a blocking phenomenon occurs between the fixing plate 54 and the extrusion plate 52 is reduced, and the equipment stability is improved.
During operation, the staff brings carbon powder and silicon powder into the reaction furnace for heating reaction, at the moment, according to the internal temperature of the reaction furnace, silicon dioxide and petroleum coke are continuously added, salt and wood dust are added, after the continuous heating, gas required by the reaction is conveyed through the gas pipeline 1, the flow guiding plate 12 rotates clockwise under the action of air flow in the air feeding process, the sealing plate 14 is driven to move in the first chute 13 according to the movement of the flow guiding plate 12, at the moment, the air flow pushes a pair of valves 2 attached to each other above the partition plate 11, a gap for enough gas to pass through is reserved, at the moment, a pair of valves 2 below the partition plate 11 are arranged in the opposite direction to the valves 2 above, the valves 2 are mutually close to each other under the impact of the air flow for sealing, the air flow is prevented from passing through, and conversely, the top pair of valves 2 can seal the valves at the angle of the top during the air extraction process, the bottom pair of valves 2 are unfolded under the action of the air flow below the partition plate 11, the air flow passes through, in the reaction process of the reaction furnace, the air is conveyed, the pair of valves 2 are attached again under the action of the torsion spring of the first rotating shaft 21, meanwhile, the magnetic force between the first magnet 22 and the second magnet 23 further drives the pair of valves 2 to attach and seal, when the pair of valves 2 are unfolded outwards under the action of the air flow impact, the other group of valves 2 can block the air flow, the pair of valves 2 are driven to be contacted with each other more tightly under the action of the air flow impact, the pair of limiting plates 3 can move mutually, the damping plates 31 can provide additional friction force for the limiting plates 3, in the process of conveying the reaction gas through the air pipeline 1, the electric push rod 42 can drive the heating wire 41 to move downwards, entering the upper part of the partition plate 11 to heat the passing air flow, in the rotating process of the drainage plate 12, the first connecting rope 55 is pulled to drive the extrusion plate 52 to move downwards, the side wall of the fixed plate 54 is extruded, the heating wire 41 can be extruded and fixed by the fixed plate 54 in the limiting groove 5, the stability of the heating wire 41 is kept when the air flow passes, meanwhile, after the air passes, the drainage plate 12 is normally reset, the extrusion plate 52 is reset under the action of a spring, the fixed plate 54 loses extrusion force, the heating wire 41 is convenient to recycle, in the moving process of the fixed plate 54, the rubber plate 6 and the side wall of the heating wire 41 can be driven to contact, meanwhile, the friction force between the five-number sliding groove 62 arranged on the side wall of the rubber plate 6 and the heating wire 41 can be increased, the spring arranged between the four-number sliding groove 61 and the fixed plate 54 can buffer the thrust generated by the movement of the extrusion plate 52, when the heater strip 41 is placed in the limit groove 5, the second connecting rope 73 can be driven to move by the movement of the rubber plate 6, the cleaning plate 71 is pulled, the cleaning plate 71 moves in the sixth chute 7, at the moment, the scraping plate 72 can be contacted with the side wall of the heater strip 41 to scrape dust on the side wall, the drainage plate 12 can move on the limit block 8 in the rotating process of the drainage plate 12, the protrusion on the seventh chute 81 can block the drainage plate 12 to limit the drainage plate 12, after the heater strip 41 is placed in the limit groove 5, the rubber plate 6 can be driven to move by the movement of the fixing plate 54, the eighth chute 9 is contacted with the side wall of the heater strip 41, the eighth chute 9 deforms under the action of extrusion force, and internal air is discharged outwards.
The front, rear, left, right, up and down are all based on fig. 1 in the drawings of the specification, the face of the device facing the observer is defined as front, the left side of the observer is defined as left, and so on, according to the viewing angle of the person.
In the description of the present invention, it should be understood that the terms "center," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present invention.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A process gas delivery apparatus for silicon carbide production, characterized in that: comprising a gas conduit (1); the inner side wall of the gas pipeline (1) is fixedly connected with a partition plate (11); the end part of the partition plate (11) is rotatably connected with a drainage plate (12); a first chute (13) is formed in the position where the upper end and the lower end of the inner side wall of the gas pipeline (1) are located in the drainage plate (12); a sealing plate (14) is slidably connected inside each pair of first sliding grooves (13); the pair of sealing plates (14) are respectively sleeved at the upper end and the lower end of the drainage plate (12); a vent hole (15) is formed in the middle of the pair of sealing plates (14); a pair of valves (2) are arranged on the side walls of the ventilation holes (15); the two groups of valves (2) are arranged in opposite directions.
2. A process gas delivery apparatus for silicon carbide production according to claim 1 wherein: two ends of the side wall of the vent hole (15) are respectively hinged with a pair of one-to-one rotary shafts (21); the first rotating shaft (21) is connected with the vent hole (15) through a torsion spring; the valve (2) is fixedly connected to the side wall of the first rotating shaft (21); a first magnet (22) and a second magnet (23) are fixedly connected inside the end parts, which are close to the valve (2), respectively; the first magnet (22) and the second magnet (23) attract each other by magnetic force.
3. A process gas delivery apparatus for silicon carbide production according to claim 2 wherein: a limiting plate (3) is fixedly connected to the positions, close to the end parts, of the valve (2) towards the opening; a pair of limit plates (3) are contacted with each other; a plurality of groups of damping plates (31) are fixedly connected to the side walls of the limiting plates (3).
4. A process gas delivery apparatus for silicon carbide production according to claim 3 wherein: the top surface of the gas pipeline (1) is fixedly connected with a storage box (4); the inside of the storage box (4) is communicated with the inside of the gas pipeline (1); the inside of the storage box (4) is connected with a heating wire (41) in a sliding manner; an electric push rod (42) is fixedly connected to the inner top surface of the storage box (4); the top surface of the heating wire (41) is fixedly connected to the output end of the electric push rod (42).
5. A process gas delivery apparatus for silicon carbide production according to claim 4 wherein: the top surface of the partition plate (11) is provided with limiting grooves (5) corresponding to the displacement of the plurality of groups of heating wires (41); a second sliding groove (51) is formed between the pair of limiting grooves (5) and positioned in the partition plate (11); an extrusion plate (52) is connected inside the second chute (51) in a sliding way; the extrusion plate (52) is connected with the second chute (51) through a spring; a third sliding groove (53) is formed in the partition plate (11) between the second sliding groove (51) and the limiting groove (5); a fixed plate (54) is connected inside the third chute (53) in a sliding way; a first connecting rope (55) is fixedly connected to the bottom end of the extruding plate (52); the other end of the first connecting rope (55) is wound on the shaft of the drainage plate (12).
6. A process gas delivery apparatus for silicon carbide production according to claim 5 wherein: the side walls of the fixed plates (54) close to the limiting grooves (5) are provided with rubber plates (6); a fourth sliding groove (61) is formed in the side wall, close to the fixed plate (54), of the rubber plate (6); the fixing plate (54) slides in the fourth sliding groove (61); the fourth sliding groove (61) is connected with the fixing plate (54) through a spring; a fifth sliding groove (62) is formed in the side wall, far away from the fixed plate (54), of the rubber plate (6); the fifth sliding groove (62) is arranged in a wave shape.
7. A process gas delivery apparatus for silicon carbide production according to claim 6 wherein: a pair of sixth sliding grooves (7) are formed in the side walls, close to the limiting grooves (5), of the rubber plates (6); the temporal part of the sixth chute (7) is connected with a cleaning plate (71) in a sliding way; the side wall of the cleaning plate (71) far away from the rubber plate (6) is fixedly connected with a plurality of groups of scraping plates (72); a second connecting rope (73) is fixedly connected to the end part of the cleaning plate (71) positioned in the sixth chute (7); the other end of the second connecting rope (73) penetrates through the fixing plate (54) and is connected to the side wall, close to the fixing plate (54), of the rubber plate (6).
8. A process gas delivery apparatus for silicon carbide production according to claim 7 wherein: a pair of seventh sliding grooves (81) are formed in the side wall of the drainage plate (12); a limiting block (8) is connected inside the seventh sliding groove (81) in a sliding manner; the end parts of the pair of limiting blocks (8) are fixedly connected to the upper surface and the lower surface of the partition plate (11).
9. A process gas delivery apparatus for silicon carbide production according to claim 8 wherein: the side walls of the five groups of sliding grooves (62) are provided with eight sliding grooves (9); the eighth chute (9) is semicircular and slides in the limit groove (5).
10. A process gas delivery apparatus for silicon carbide production according to claim 9 wherein: the ends of the fixed plates (54) close to the extrusion plates (52) are respectively and rotatably connected with rollers (101); the roller (101) is in contact with the pressing plate (52).
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