CN105597928B - Silicon carbide powder production system - Google Patents
Silicon carbide powder production system Download PDFInfo
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- CN105597928B CN105597928B CN201610158296.9A CN201610158296A CN105597928B CN 105597928 B CN105597928 B CN 105597928B CN 201610158296 A CN201610158296 A CN 201610158296A CN 105597928 B CN105597928 B CN 105597928B
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- tank
- slip
- pickling
- homogenizing
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/30—Combinations with other devices, not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/02—Settling tanks with single outlets for the separated liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/805—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis wherein the stirrers or the receptacles are moved in order to bring them into operative position; Means for fixing the receptacle
- B01F27/806—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis wherein the stirrers or the receptacles are moved in order to bring them into operative position; Means for fixing the receptacle with vertical displacement of the stirrer, e.g. in combination with means for pivoting the stirrer about a vertical axis in order to co-operate with different receptacles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/32—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action
- F26B3/34—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects
- F26B3/347—Electromagnetic heating, e.g. induction heating or heating using microwave energy
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Microbiology (AREA)
- Electromagnetism (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Biotechnology (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a silicon carbide powder production system. Silicon carbide is made into slurry in a slurrying tank; the slurry is sequentially subjected to the flotation impurity removal of a flotation machine and the magnetic separation iron removal of a magnetic separator and then enters an acid washing system; after acid washing iron removal of the acid washing system, the slurry enters an overflow classifier for overflow classification; the classified slurry is subjected to the sedimentation and homogenization of a sedimentation and homogenization system and then conveyed into a centrifuge for dehydration; and the dehydrated powder is dried by a drying system to obtain the silicon carbide powder. In the invention, the flotation impurity removal, magnetic separation iron removal and acid washing iron removal are organically combined to remove impurities and trace iron element in the silicon carbide to finally obtain high-purity silicon carbide; and since the acid washing tanks are arranged in a line and the track and movable lift type stirring mechanism are arranged above, the stirring of all acid washing tanks can be realized by one stirring mechanism, and the equipment cost is remarkably reduced.
Description
Technical field
The present invention relates to the production preparation field of carborundum, specifically a kind of sic powder production system.
Background technology
Carborundum is due to stable chemical performance, thermal conductivity factor is high, thermal coefficient of expansion is little, anti-wear performance is good, except being used as abrasive material
Outward, also a lot of other purposes.The industrial making method of carborundum is refined in resistance furnace with high grade quartz sand and petroleum coke.Pure carbon
SiClx for colourless, and the palm fibre of industrial production to black system due to the impurity of iron content, the silicon carbide bulk refined, Jing is crushed, soda acid
Wash, magnetic separation and screening or wet concentration and make the product of various granularities.
Due to often containing the impurity such as iron in the carborundum of industrial production, accordingly, it would be desirable to carry out purification point to carborundum
Level, so as to obtain the silicon carbide powder of homogeneous grain diameter.In the prior art, simply carborundum is rinsed when producing carborundum is removed
It is miscellaneous, obtain except iron, classification, but this mode of production, often lead to still suffer from a small amount of ferro element in carborundum to remove,
And in whole production technology, generally require manpower between each operation and carborundum is transported through, substantial amounts of manpower is wasted,
It is not only inefficient, and period be likely to cause the secondary pollution of carborundum.
The content of the invention
The de-ferrous effect that exists is bad when carborundum is produced in solve prior art, manpower degree of dependence is high, production effect
Rate is low and easilys lead to the problem of secondary pollution, the invention provides a kind of sic powder production system, the system first will
Carborundum slurrying, then successively Jing after flotation removal of impurities, iron removal by magnetic separation, then will add acid to be stirred in silicon carbide slurry, so as to
Remove the micro ferro element in carborundum, finally give highly purified carborundum, and after centrifugation, drying Jing after sedimentation homogenizing
Obtain product.
The present invention for realize technical scheme that above-mentioned technical purpose adopted for：A kind of sic powder production system, bag
Slurrying pond, flotation device, magnetic separator, pickling system, overflow size separation device, sedimentation homogenization system, centrifuge and drying system are included, its
In, carborundum makes slip in slurrying pond, and slip is entered into successively Jing after flotation device flotation removal of impurities and magnetic separator iron removal by magnetic separation
In pickling system, overflow size separation device grading inside overflow is entered Jing after pickling system pickling removes iron, the slip Jing sedimentations after classification are equal
Send in centrifuge after change system sedimentation homogenizing and be dehydrated, after the powder drying system drying after dehydration sic powder is obtained；
The pickling system includes some pickling tanks being arranged in a row and the track being arranged on above pickling tank, track
Upper slip is provided with lifting type stirring mechanism, to be stirred to each pickling tank；
The lifting type stirring mechanism includes being driven the bracket of its motion in orbit, being arranged on bracket by actuating unit
Screw rod, portal frame, hoisting frame and shaft, wherein, the lower end of screw rod is rotated by bearing and bearing block and is fixed on bracket,
Top rotates with portal frame and is connected, and the lifting motor of drive screw synchronous axial system is provided with portal frame, and hoisting frame passes through
Two screwed holes and two screw rods form screw drive, so that screw rod drives hoisting frame to lift in rotation process, the lifting
The shaft driven by rotary electric machine is provided with frame, the bottom of shaft is provided with stirring vane, and the stirring vane includes
At least three blades arranged around shaft same level section and the fixed disk for being arranged on shaft bottom, the side of fixed disk
Edge is evenly arranged with least three pieces of scraper plate, and the blade is the arc being upturned, and its bottom is vertically installed with connection sheet, and
One end that connection sheet bottom connects with shaft is arranged on the upper surface of fixed disk；
The stirring passage passed through for shaft and stirring vane is provided with the top of the pickling tank, is covered on stirring passage and is set
There is cover plate, the top of pickling tank is arch, and the highest point in arch is provided with plastics adapter, plastics are taken over and pass through an acid mist
Collecting hood is connected with negative-pressure pipeline, with the sour gas in collecting tank body；The top of pickling tank is provided with and is connected with charging house steward I
Charging aperture and the acid inlet tube that is connected with acid adding pipeline, arrange in the slip outlet of pickling pot bottom and oriented be passed through compression in it
The air inlet pipe of air, air inlet pipe is connected with compressed air piping；
It is described charging house steward I be used for by after magnetic separator magnetic separation slip import pickling tank in, the slip outlet with row
Slurry house steward I connects, and the slip after pickling is sent into into overflow size separation device internal classification, and the slip after classification sends into sedimentation homogenization system
Inside carry out sedimentation homogenizing, the slip after homogenizing is finished is sent in whizzer and is centrifuged, the powder Jing after separation
Product is obtained after drying；
The drying system include transmission carborundum transporting rail, be arranged on the anterior microwave drying furnace of transporting rail,
Hopper below transporting rail end, conveying worm, skid bed and dumper are arranged on, the transporting rail drives carborundum
Onwards transmission, drops in hopper after the furnace chamber drying of microwave drying furnace, under the feed end and hopper of conveying worm
Material mouth connects, and material receiving tube is connected with discharge end, and material receiving tube is extend on the dumper below skid bed through after skid bed
In pocket, and conveying worm is supported and fixed on skid bed by fixed mechanism；It is provided with side wall in the hopper and scrapes
Glassware, material scraper includes a gripper shoe being fixed on hopper side wall and the rubber mount being arranged at the top of gripper shoe, and rubber
It is close to the surface of transporting rail bottom at the top of cushion, to wipe the silicon carbide powder for adhering to thereon off；
The fixed mechanism includes a clip for fixing conveying worm, and the bottom of clip is provided with insertion skid bed surface
Connecting pin in upper certain through hole, the external rings of connecting pin are cased with spring, and the bottom of spring pushes against with the surface of skid bed；
The helical feed motor spindle is provided with leakage-proof mechanism, and the leakage-proof mechanism includes being set in conveying worm bottom
The collar in portion, the guided plate being arranged on the collar and the pocket being fixed on the collar, described guided plate is arc, and is adjacent to
The outer surface of helical feed motor spindle lowest point is arranged diagonally downward.
The sedimentation homogenization system includes several settling tanks arranged side by side being in a straight line and a homogenizing tank, often
Sedimentation feed pipe on individual settling tank is connected with charging house steward II, and the sedimentation drainage conduit of settling tank connects with plasma discharge house steward II
Connect, and the end of plasma discharge house steward II is connected with the homogenizing feed pipe of homogenizing tank, and above settling tank and homogenizing tank track is also equipped with,
Slide on track and be provided with above-mentioned lifting type stirring mechanism, to be stirred to each settling tank and homogenizing tank, and in sedimentation
Tank and homogenizing tank top offer the stirring passage for shaft and stirring vane turnover, and on stirring passage cover plate is covered with；
The charging house steward II is connected with the overfall of overflow size separation device, and the slip after classification is imported into sedimentation homogenizing system
System, the slip in it is sent in whizzer and is centrifuged by the homogenizing drainage conduit of the homogenizing tank, after separation
Product is obtained after the drying of powder drying system.
The air inlet pipe being connected with compressed air piping is respectively arranged with the discharge gate of the settling tank and homogenizing tank.
The upper limit position switch and lower position switch of control lifting motor are provided with the track of the hoisting frame lifting, so as to
Limit the extreme position of stirring vane raising and lowering.
The edge of the blade free end is inclined-plane, and is from up to down gradually tapered up.
The blade is misaligned in the projection of horizontal plane with scraper plate.
The air inlet pipe is adopted with the slip outlet outer wall of pickling tank and is threadedly coupled, and air inlet pipe is provided with connection
Sleeve, is provided with sealing rubber plug, the end-enclosed of air inlet pipe between air inlet pipe and branch sleeve, and is densely covered with gas distribution in end
Hole.
The cover plate is combined into by symmetrically arranged two blocks semicircular point of plates, and per block, the center on point board diameter side is provided with
Semicircular groove, so as to form the hole for accommodating shaft after two pieces of points of plate splits, a jiao of two pieces of points of plates passes through to turn
Dynamic pin is symmetrically hinged on stirring passage, so as to stirring is closed or opened to two pieces of points of plates in respective rotational pin rotation process lead to
Road.
The both sides of the transporting rail are provided with backplate, and the furnace chamber of microwave drying furnace is connected with backplate, to close transmission rail
The anterior face in road, on the surface at transporting rail rear portion shrouding is provided with, to close the surface at transporting rail rear portion, in shrouding
Surface distributed has louvre.
The bottom part ring of the material receiving tube is cased with the collar, so that the pocket mouth of dumper is fixedly connected with splicing bottom of the tube.
The top of the pickling tank, settling tank and homogenizing tank is provided with drainpipe diagonally downward, and sets on drainpipe
It is equipped with control valve.
The surrounding of the dumper is provided with baffle plate, and so as to surround the haul space for accommodating pocket, the bottom of dumper sets
Universal wheel is equipped with, so that dumper enters under external force or remove skid bed lower section.
The present invention by arranging air inlet pipe in the discharge gate of pickling tank, settling tank and homogenizing tank, by air inlet pipe to row
Compressed air is blasted in material mouth, be its objective is：Carborundum sedimentation blocking discharge gate is prevented, while blasting compressed air energy thereto
Enough play a part of auxiliary stirring.
Beneficial effect：The present invention compared with prior art, with advantages below：
1）The present invention by by flotation removal of impurities, iron removal by magnetic separation and pickling except iron organically combines, so as to remove carbonization
Impurity and micro ferro element in silicon, finally gives highly purified carborundum；
2）The present invention arranges thereon track and moveable lifting type stirring by the way that pickling tank is arranged in a row, then
Mechanism, it is achieved thereby that a rabbling mechanism is stirred to all pickling tanks, drastically reduce the area the cost of equipment；
3）The lifting agitating device of the present invention, can lower and slip is stirred, and stirring departs from tank body after finishing
Inside, will not constitute any impact to slip with the reaction of acid；There is unique texture in the shaft bottom of lifting agitating device
Stirring vane so that make in whipping process tank body slip have an action of stirring upwards, not only act as very
Good stirring action, and souring can be played to the slip of inner tank wall adhesion, it is therefore prevented that a large amount of adhesions of carborundum
Deposition；
4）Acid mist collecting cover is set at the top of pickling tank, not only prevents acid mist from corroding plant and equipment, and restored acid mist
Can also reuse, so as to save raw material, it also avoid pollution of the acid mist to environment；Air inlet pipe is set in slip outlet,
It is intended that prevent carborundum sedimentation blocking slip outlet, and blast thereto compressed air can play auxiliary stirring
Effect；
5）The present invention transmits silicon carbide powder by transporting rail, and arranges microwave drying furnace in the anterior of transporting rail,
So that silicon carbide powder completes to dry operation in transmitting procedure, then skid bed is transported to by hopper and conveying worm
Place, is provided with the dumper of pocket under skid bed, consequently facilitating the pack and transport of carborundum, whole process is fully achieved
Automatically working, greatly reduces the use to manpower, and also improves operating efficiency, it is therefore prevented that carborundum was being transported
Pollution and loss in journey.
Description of the drawings
Fig. 1 is the structural representation of pickling system of the present invention；
Fig. 2 is the structural representation of lifting type stirring mechanism；
Fig. 3 is the structural representation of pickling tank；
Fig. 4 is the structural representation for settling homogenization system；
Fig. 5 is the structural representation of drying system；
Fig. 6 is the structural representation of settling tank；
Fig. 7 is the structural representation of homogenizing tank；
Fig. 8 is the structural representation of stirring vane；
Fig. 9 is the side view of blade and connection sheet；
Figure 10 is the structural representation of fixed disk and scraper plate；
Figure 11 is the structural representation of air inlet pipe；
Figure 12 is the structural representation of cover plate；
Figure 13 is the structural representation of shrouding；
Figure 14 is the structural representation of material scraper；
Figure 15 is the structural representation of fixed mechanism；
Figure 16 is the structural representation of leakage-proof mechanism；
Reference：1st, pickling tank, 101, charging aperture, 102, slip outlet, 103, plastics adapter, 104, acid mist collecting
Cover, 2, negative-pressure pipeline, 3, charging house steward I, 4, plasma discharge house steward I, 5, compressed air piping, 501, air inlet pipe, 5011, adapter sleeve
Cylinder, 5012, sealing rubber plug, 6, acid adding pipeline, 601, acid inlet tube, 7, stirring vane, 701, blade, 702, connection sheet, 703,
Fixed disk, 704, scraper plate, 8, bracket, 801, actuating unit, 9, shaft, 901, rotary electric machine, 902, stirring passage, 903, lid
Plate, 9031, point plate, 9032, groove, 9033, rotational pin, 10, portal frame, 11, hoisting frame, 1101, upper limit position switch, 1102,
Lower position switch, 12, lifting motor, 13, screw rod, 14, track, 15, settling tank, 1501, sedimentation feed pipe, 1502, sedimentation row
Expects pipe, 16, homogenizing tank, 1601, homogenizing feed pipe, 1602, homogenizing drainage conduit, 17, charging house steward II, 18, plasma discharge house steward II,
19th, transporting rail, 1901, backplate, 1902, shrouding, 1903, louvre, 20, microwave drying furnace, 21, hopper, 22, helical feed
Machine, 23, fixed mechanism, 2301, clip, 2302, connecting pin, 2303, spring, 24, material receiving tube, 25, skid bed, 26, dumper,
27th, material scraper, 2701, gripper shoe, 2702, rubber mount, 28, leakage-proof mechanism, 2801, the collar, 2802, guided plate, 2803,
Pocket, 29, drainpipe.
Specific embodiment
As illustrated, a kind of sic powder production system, including slurrying pond, flotation device, magnetic separator, pickling system, overflow
Stream clasfficiator, sedimentation homogenization system, centrifuge and drying system, wherein, carborundum makes slip in slurrying pond, and slip is successively
Enter in pickling system Jing after flotation device flotation removal of impurities and magnetic separator iron removal by magnetic separation, enter Jing after pickling system pickling removes iron and overflow
Stream clasfficiator grading inside overflow, the slip after classification is sent in centrifuge Jing after sedimentation homogenization system sedimentation homogenizing and is dehydrated, dehydration
Sic powder is obtained after powder drying system drying afterwards；
The track 14 that the pickling system includes some pickling tanks 1 being arranged in a row and is arranged on above pickling tank 1,
Slide on track 14 and be provided with lifting type stirring mechanism, to be stirred to each pickling tank 1；
The lifting type stirring mechanism includes being driven bracket 8 that it moves on track 14, being arranged on by actuating unit 801
Screw rod 13, portal frame 10, hoisting frame 11 and shaft 9 on bracket 8, wherein, the lower end of screw rod 13 is by bearing and bearing block
Rotation is fixed on bracket 8, and top rotates with portal frame 10 and is connected, and synchronous turn of drive screw 13 is provided with portal frame 10
Dynamic lifting motor 12, hoisting frame 11 forms screw drive by two screwed holes and two screw rods 13, so that screw rod 13 is turning
Drive hoisting frame 11 to lift during dynamic, the shaft 9 driven by rotary electric machine 901 is provided with the hoisting frame 11, stir
The bottom of axle 9 is provided with stirring vane 7, and the stirring vane 7 includes at least three arranged around the same level section of shaft 9
Piece blade 701 and the fixed disk 703 of the bottom of shaft 9 is arranged on, the edge of fixed disk 703 is evenly arranged with least three pieces and scrapes
Plate 704, the blade 701 is the arc that is upturned, and its bottom is vertically installed with connection sheet 702, and the bottom of connection sheet 702 with
One end that shaft 9 connects is arranged on the upper surface of fixed disk 703；
The top of the pickling tank 1 is provided with the stirring passage 902 passed through for shaft 9 and stirring vane 7, stirs passage
Cover plate 903 is covered with 902, the top of pickling tank 1 is arch, and the highest point in arch is provided with plastics adapter 103, plastics
Adapter 103 be connected with negative-pressure pipeline 2 by an acid mist collecting cover 104, with the sour gas in collecting tank body；Pickling tank 1
Top is provided with the charging aperture 101 being connected with charging house steward I 3 and the acid inlet tube 601 being connected with acid adding pipeline 6, the bottom of pickling tank 1
Slip outlet 102 in the oriented air inlet pipe 501 that compressed air is passed through in it, air inlet pipe 501 and compressed air piping 5 are set
Connection；
The charging house steward I 3 is used to the slip after magnetic separator magnetic separation is imported in pickling tank 1, the slip outlet 102
Connect with plasma discharge house steward I 4, the slip after pickling is sent into into overflow size separation device internal classification, it is equal that the slip after classification sends into sedimentation
Carry out sedimentation homogenizing in change system, the slip after homogenizing is finished is sent in whizzer and is centrifuged, after separation
Product is obtained after powder drying；
The drying system includes the transporting rail 19 of transmission carborundum, is arranged on the microwave drying of the front portion of transporting rail 19
Stove 20, the hopper 21 being arranged on below the end of transporting rail 19, conveying worm 22, skid bed 25 and dumper 26, the biography
Defeated track 19 drives carborundum onwards transmission, drops in hopper 21 after the furnace chamber drying of microwave drying furnace 20, spiral transferring
The feed end for sending machine 22 is connected with the feed opening of hopper 21, and material receiving tube 24 is connected with discharge end, and material receiving tube 24 passes through skid bed
It extend into after 25 in the pocket on the dumper 26 of the lower section of skid bed 25, and conveying worm 22 supports solid by fixed mechanism 23
It is scheduled on skid bed 25；Material scraper 27 is provided with side wall in the hopper 21, material scraper 27 is fixed on hopper 21 including one
Gripper shoe 2701 on the wall of side and the rubber mount 2702 for being arranged on the top of gripper shoe 2701, and the top of rubber mount 2702 is tight
The surface of patch transporting rail 19 bottom, to wipe the silicon carbide powder for adhering to thereon off；
The fixed mechanism 23 includes a clip 2301 for fixing conveying worm 22, and the bottom of clip 2301 is provided with slotting
Enter the connecting pin 2302 in certain through hole on the surface of skid bed 25, the external rings of connecting pin 2302 are cased with spring 2303, and spring
2303 bottom pushes against with the surface of skid bed 25；
The bottom of the conveying worm 22 is provided with leakage-proof mechanism 28, and the leakage-proof mechanism 28 includes being set in spiral transferring
The collar 2801 for sending the bottom of machine 22, the guided plate 2802 being arranged on the collar 2801 and the pocket being fixed on the collar 2801
2803, described guided plate 2802 is arc, and is adjacent to the outer surface of the bottom lowest point of conveying worm 22 and is tilted towards dividing into
Put.
Above for the present invention basic embodiment, can more than on the basis of be further improved, limit or optimize：
Such as, the sedimentation homogenization system includes several settling tanks arranged side by side 15 being in a straight line and a homogenizing
Tank 16, the sedimentation feed pipe 1501 on each settling tank 15 is connected with charging house steward II 17, the sedimentation drainage conduit of settling tank 15
1502 are connected with plasma discharge house steward II 18, and the end of plasma discharge house steward II 18 is connected with the homogenizing feed pipe 1601 of homogenizing tank 16,
Settling tank 15 and the top of homogenizing tank 16 are also equipped with track 14, and sliding on track 14 is provided with above-mentioned lifting type stirring mechanism,
To be stirred to each settling tank 15 and homogenizing tank 16, and offer and supply shaft in settling tank 15 and the top of homogenizing tank 16
9 and stirring vane 7 turnover stirring passage 902, stirring passage 902 on be covered with cover plate 903；
Now, the charging house steward II 17 is connected with the overfall of overflow size separation device, and it is heavy that the slip after classification is imported
Slip in it is sent in whizzer and is centrifuged by drop homogenization system, the homogenizing drainage conduit 1602 of the homogenizing tank 16
Separate, after the powder drying system drying after separation product is obtained；
And for example, it is respectively arranged with what is be connected with compressed air piping 5 in the discharge gate of the settling tank 15 and homogenizing tank 16
Air inlet pipe 501；
And for example, the hoisting frame 11 lifting track on be provided with control lifting motor 12 upper limit position switch 1101 and under
Limit switch 1102, so as to limit the extreme position of the raising and lowering of stirring vane 7.
And for example, the edge of the free end of the blade 701 is inclined-plane, and is from up to down gradually tapered up；
Further, the blade 701 is misaligned in the projection of horizontal plane with scraper plate 704；
And for example, the air inlet pipe 501 is adopted with the outer wall of slip outlet 102 of pickling tank 1 and is threadedly coupled, and around air inlet
Pipe 501 is provided with branch sleeve 5011, and sealing rubber plug 5012, air inlet are provided between air inlet pipe 501 and branch sleeve 5011
The end-enclosed of pipe 501, and it is densely covered with qi-emitting hole in end；
And for example, the cover plate 903 is combined into by symmetrically arranged two blocks semicircular point of plates 9031, point diameter of plate 9031 per block
The center on side is provided with semicircular groove 9032, so as to form the hole for accommodating shaft 9, institute after the split of two pieces of points of plates 9031
State two pieces of points of plates 9031 one jiao is symmetrically hinged on stirring passage 902, so that two pieces of points of plates 9031 by rotational pin 9033
Stirring passage 902 is closed or opened in the rotation process of respective rotational pin 9033；
And for example, the both sides of the transporting rail 19 are provided with backplate 1901, furnace chamber and the backplate 1901 of microwave drying furnace 20
Connection, to close the anterior face of transporting rail 19, on the surface at the rear portion of transporting rail 19 shrouding 1902 is provided with, to close biography
, there is louvre 1903 on the surface at the rear portion of defeated track 19 in the surface distributed of shrouding 1902, so as to prevent sic powder by again
While secondary pollution so as to rapidly radiating；
And for example, the bottom part ring of the material receiving tube 24 is cased with the collar, so that the pocket mouth of dumper 26 and the bottom of material receiving tube 24
It is fixedly connected；
For another example, the top of the pickling tank 1, settling tank 15 and homogenizing tank 16 is provided with drainpipe 29 diagonally downward,
And control valve is provided with drainpipe 29, to discharge water unnecessary in each tank body；
Finally, the surrounding of the dumper 26 is provided with baffle plate, so as to surround the haul space for accommodating pocket, dumper 26
Bottom be provided with universal wheel so that dumper 26 enters under external force or removes the lower section of skid bed 25.
Claims (8)
1. it is a kind of sic powder production system, including slurrying pond, flotation device, magnetic separator, pickling system, overflow size separation device, heavy
Drop homogenization system, centrifuge and drying system, wherein, carborundum makes slip in slurrying pond, and successively Jing flotation devices are floated slip
Blanking is miscellaneous and magnetic separator iron removal by magnetic separation after enter in pickling system, enter in overflow size separation device Jing after pickling system pickling removes iron
Overflow size separation, the slip after classification is sent in centrifuge Jing after sedimentation homogenization system sedimentation homogenizing and is dehydrated, the powder Jing after dehydration
Sic powder is obtained after drying system drying, it is characterised in that：
The pickling system includes some pickling tanks being arranged in a row（1）And it is arranged on pickling tank（1）The track of top
（14）, track（14）Upper slip is provided with lifting type stirring mechanism, with to each pickling tank（1）It is stirred；
The lifting type stirring mechanism is included by actuating unit（801）It is driven in track（14）The bracket of upper motion（8）, arrange
In bracket（8）On screw rod（13）, portal frame（10）, hoisting frame（11）And shaft（9）, wherein, screw rod（13）Lower end lead to
Cross bearing and bearing block is rotated and is fixed on bracket（8）On, top and portal frame（10）Connection is rotated, and in portal frame（10）On set
It is equipped with drive screw（13）The lifting motor of synchronous axial system（12）, hoisting frame（11）By two screwed holes and two screw rods（13）
Screw drive is formed, so that screw rod（13）Hoisting frame is driven in rotation process（11）Lifting, the hoisting frame（11）Upper setting
Have by rotary electric machine（901）The shaft of driving（9）, shaft（9）Bottom be provided with stirring vane（7）, the paddle
Piece（7）Including around shaft（9）At least three blades that same level section is arranged（701）Be arranged on shaft（9）Bottom
The fixed disk in portion（703）, fixed disk（703）Edge be evenly arranged with least three pieces of scraper plate（704）, the blade（701）
For the arc being upturned, its bottom is vertically installed with connection sheet（702）, and connection sheet（702）Bottom and shaft（9）Connect
One end be arranged on fixed disk（703）Upper surface on；The blade（701）The edge of free end is inclined-plane, and from up to down
Gradually taper up, and blade（701）With scraper plate（704）It is misaligned in the projection of horizontal plane；
The pickling tank（1）Top be provided with and supply shaft（9）And stirring vane（7）The stirring passage for passing through（902）, stirring
Passage（902）On be covered with cover plate（903）, pickling tank（1）Top be arch, and the highest point in arch is provided with plastics and connects
Pipe（103）, plastics adapter（103）With by an acid mist collecting cover（104）With negative-pressure pipeline（2）Connection, with collecting tank body
Sour gas；Pickling tank（1）Top be provided with and feed house steward I（3）The charging aperture of connection（101）And with acid adding pipeline（6）
The acid inlet tube of connection（601）, pickling tank（1）The slip outlet of bottom（102）Interior setting oriented is passed through compressed air in it
Air inlet pipe（501）, air inlet pipe（501）With compressed air piping（5）Connection；
The charging house steward I（3）For the slip after magnetic separator magnetic separation to be imported into pickling tank（1）It is interior, the slip outlet
（102）With plasma discharge house steward I（4）Connection, sends the slip after pickling into overflow size separation device internal classification, and the slip after classification is sent into
Sedimentation homogenizing is carried out in sedimentation homogenization system, the slip after homogenizing is finished is sent in whizzer and is centrifuged, point
Product is obtained after powder drying after；
The drying system includes the transporting rail of transmission carborundum（19）, be arranged on transporting rail（19）Anterior microwave drying
Stove（20）, be arranged on transporting rail（19）Hopper below end（21）, conveying worm（22）, skid bed（25）And dumper
（26）, the transporting rail（19）Carborundum onwards transmission is driven, through microwave drying furnace（20）Furnace chamber drying after drop into
Hopper（21）It is interior, conveying worm（22）Feed end and hopper（21）Feed opening connection, material receiving tube is connected with discharge end
（24）, material receiving tube（24）Through skid bed（25）After extend into skid bed（25）The dumper of lower section（26）On pocket in, and
Conveying worm（22）By fixed mechanism（23）It is supported and fixed on skid bed（25）On；The hopper（21）Set on interior side wall
It is equipped with material scraper（27）, material scraper（27）Hopper is fixed on including one（21）Gripper shoe on the wall of side（2701）Be arranged on support
Plate（2701）The rubber mount at top（2702）, and rubber mount（2702）Top be close to transporting rail（19）The table of bottom
Face, to wipe the silicon carbide powder for adhering to thereon off；
The fixed mechanism（23）Conveying worm is fixed including one（22）Clip（2301）, clip（2301）Bottom arrange
There is insertion skid bed（25）Connecting pin on surface in certain through hole（2302）, connecting pin（2302）External rings be cased with spring
（2303）, and spring（2303）Bottom and skid bed（25）Surface push against；
The conveying worm（22）Bottom is provided with leakage-proof mechanism（28）, the leakage-proof mechanism（28）Including being set in spiral
Conveyer（22）The collar of bottom（2801）, be arranged on the collar（2801）On guided plate（2802）Be fixed on the collar（2801）
On pocket（2803）, described guided plate（2802）For arc, and it is adjacent to conveying worm（22）Outside the lowest point of bottom
Surface is arranged diagonally downward.
2. a kind of sic powder production system according to claim 1, it is characterised in that：The sedimentation homogenization system bag
Include several settling tanks arranged side by side being in a straight line（15）With a homogenizing tank（16）, each settling tank（15）On it is heavy
Drop feed pipe（1501）With charging house steward II（17）Connection, settling tank（15）Sedimentation drainage conduit（1502）With plasma discharge house steward
Ⅱ（18）Connection, and plasma discharge house steward II（18）End and homogenizing tank（16）Homogenizing feed pipe（1601）Connection, in settling tank
（15）And homogenizing tank（16）Top is also equipped with track（14）, track（14）Upper slip is provided with above-mentioned lifting-type stirring machine
Structure, with to each settling tank（15）And homogenizing tank（16）It is stirred, and in settling tank（15）And homogenizing tank（16）Open at top
It is provided with and supplies shaft（9）And stirring vane（7）The stirring passage of turnover（902）, stir passage（902）On be covered with cover plate
（903）；
The charging house steward II（17）It is connected with the overfall of overflow size separation device, the slip after classification is imported into sedimentation homogenizing system
System, the homogenizing tank（16）Homogenizing drainage conduit（1602）Slip in it is sent in whizzer carries out centrifugation point
From the powder drying system after separation obtains product after drying.
3. a kind of sic powder production system according to claim 2, it is characterised in that：The settling tank（15）With it is equal
Change tank（16）Discharge gate in be respectively arranged with and compressed air piping（5）The air inlet pipe of connection（501）.
4. a kind of sic powder production system according to claim 1, it is characterised in that：The hoisting frame（11）Lifting
Track on be provided with control lifting motor（12）Upper limit position switch（1101）And lower position switch（1102）.
5. a kind of sic powder production system according to claim 1, it is characterised in that：The air inlet pipe（501）With
Pickling tank（1）Slip outlet（102）Outer wall surround air inlet pipe using threaded connection（501）It is provided with branch sleeve
（5011）, air inlet pipe（501）With branch sleeve（5011）Between be provided with sealing rubber plug（5012）, air inlet pipe（501）End
Portion closes, and is densely covered with qi-emitting hole in end.
6. a kind of sic powder production system according to claim 1, it is characterised in that：The cover plate（903）By right
Claim the two blocks of semicircular point of plates for arranging（9031）It is combined into, point plate per block（9031）The center on diameter side is provided with semicircular
Groove（9032）, so that two pieces of points of plates（9031）Formed after split and accommodate shaft（9）Hole, two pieces of points of plates（9031）'s
One jiao passes through rotational pin（9033）Symmetrically it is hinged on stirring passage（902）On, so that two pieces of points of plates（9031）Around each autorotation
Pin（9033）Stirring passage is closed or opened in rotation process（902）.
7. a kind of sic powder production system according to claim 1, it is characterised in that：The transporting rail（19）'s
Both sides are provided with backplate（1901）, microwave drying furnace（20）Furnace chamber and backplate（1901）Connection, to close transporting rail（19）
Anterior face, transporting rail（19）Shrouding is provided with the surface at rear portion（1902）, to close transporting rail（19）Rear portion
Surface, in shrouding（1902）Surface distributed have louvre（1903）.
8. a kind of sic powder production system according to claim 1, it is characterised in that：The material receiving tube（24）Bottom
Portion's ring set has the collar, so that dumper（26）Pocket mouth and material receiving tube（24）Bottom is fixedly connected.
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| CN201610158296.9A CN105597928B (en) | 2016-03-21 | 2016-03-21 | Silicon carbide powder production system |
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| CN109556359B (en) * | 2018-12-05 | 2024-06-07 | 共享智能铸造产业创新中心有限公司 | Microwave heating and drying equipment and microwave heating and drying method |
| CN112142056A (en) * | 2020-09-24 | 2020-12-29 | 江苏古羽氏科技有限公司 | Quartz sand purification method and purification system based on purification method |
| CN112755931B (en) * | 2020-12-30 | 2022-07-01 | 重庆万盛川东化工有限公司 | Chemical esterification reaction equipment with automatic mechanism of retrieving of material |
| CN113694806B (en) * | 2021-08-26 | 2023-08-29 | 郑州众城润滑科技有限公司 | Test equipment for lubricating grease production or reprocessing |
| CN113680462B (en) * | 2021-10-27 | 2021-12-31 | 苏州锦艺新材料科技有限公司 | Production process of spherical silicon micropowder |
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