CN116174118A - High-pressure airflow crushing equipment for preparing aluminum nitride powder and crushing method thereof - Google Patents
High-pressure airflow crushing equipment for preparing aluminum nitride powder and crushing method thereof Download PDFInfo
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- CN116174118A CN116174118A CN202310273375.4A CN202310273375A CN116174118A CN 116174118 A CN116174118 A CN 116174118A CN 202310273375 A CN202310273375 A CN 202310273375A CN 116174118 A CN116174118 A CN 116174118A
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- pressure air
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/06—Jet mills
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/58—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in parallel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
Abstract
The invention discloses high-pressure air flow crushing equipment for preparing aluminum nitride powder and a crushing method thereof. The beneficial effects are that: according to the invention, an automatic feeding process is realized by arranging the reciprocating motor, the high-pressure air compressor compresses high-pressure air flow to drive aluminum nitride powder to enter the crushing cavity, particles with different sizes in the crushing cavity are subjected to rotary collision to crush the particles, the crushed particles enter the air-powder separator after being crushed to a certain size, the air-powder separator collects the finished aluminum nitride powder through the filter screen, the control of the size of the powder particles is very accurate, the quality of the finished aluminum nitride powder is ensured, and the design of the multi-layer filter screen greatly reduces the pollution to air and has higher popularization.
Description
Technical Field
The invention relates to the technical field of aluminum nitride powder preparation equipment, in particular to high-pressure airflow crushing equipment for preparing aluminum nitride powder and a crushing method thereof.
Background
Aluminum nitride has the advantages of high thermal conductivity, low dielectric constant, low dielectric loss, excellent electrical insulation, thermal expansion coefficient matched with silicon, no toxicity and the like, so that the aluminum nitride is an ideal material for high-density, high-power and high-speed integrated circuit substrates and packages, and has been paid attention in recent years.
The fineness precision of the powder cannot be guaranteed in the existing high-pressure airflow crushing equipment for preparing aluminum nitride powder, the discharged high-pressure gas carries the powder to cause environmental pollution, part of particles flow down to the bottom along with the high-pressure airflow to fluidize, the traditional airflow crusher easily forms dead angles at the bottom of the cylinder body, the cleaning operation is complex, time and labor are consumed, and certain trouble is brought to subsequent preparation.
Disclosure of Invention
The invention aims to solve the problems and provide high-pressure airflow crushing equipment for preparing aluminum nitride powder and a crushing method thereof.
The invention realizes the above purpose through the following technical scheme:
the utility model provides a high-pressure air stream crushing apparatus is prepared to aluminium nitride powder preparation, includes frame, feed arrangement, high-pressure air machine, smashes cavity, air-powder separator and fan device, feed arrangement includes the second inlet pipe, the second inlet pipe is the hose, second inlet pipe one side threaded connection has venturi feeder hopper, it includes first crushing dish and crushing chamber inlet pipe to smash the cavity, it is the metal hard tube to smash the cavity inlet pipe, lower one side flange joint in venturi feeder hopper bottom smash the cavity inlet pipe, smash the cavity inlet pipe and can effectually support venturi feeder hopper, first crushing dish top flange joint has smash the cavity outlet duct, air-powder separator includes separating drum, separating drum air outlet and separator income trachea, separating drum mainly used separates high-pressure air and aluminium nitride powder, separating drum air outlet flange joint has the fan inlet channel, fan inlet channel opposite side flange joint has the fan, fan device includes the fan housing, bolted connection is in on the frame, the fan housing is last for the high-pressure air filter cartridge of air-handling device is used for the high-pressure air to filter the cylinder body.
Further, feed arrangement still includes the feedwell, feeding backup pad, first inlet pipe, slide rail, reciprocating motor, slider and reciprocal feed cylinder, frame top one side bolted connection the feeding backup pad, the feeding backup pad welds on the feedwell outer cylinder, through fixing the feeding backup pad is fixed the feedwell, the frame welds reciprocating motor and slide rail, reciprocating motor is keeping away from fan unit one side, the slide rail is being close to fan unit one side, slide rail top sliding connection the slider, slider top welding reciprocal feed cylinder, reciprocal motor output shaft bolted connection reciprocal feed cylinder, reciprocating motor drives reciprocal feed cylinder carries out reciprocating motion, feedwell bottom threaded connection first inlet pipe, first inlet pipe is the hose, first inlet pipe opposite side threaded connection reciprocal feed cylinder, reciprocal feed cylinder is close to venturi one side threaded connection second, reciprocal feed cylinder is in reciprocating motion carries out inside aluminium nitride granule into the second.
Further, the high-pressure air machine is placed at one side of the bottom of the rack, which is close to the feeding device, a first pressure regulating valve and a second pressure regulating valve are connected to the top of the high-pressure air machine through bolts, the pressure can be regulated through the first pressure regulating valve and the second pressure regulating valve, one side of the first pressure regulating valve is connected with the high-pressure air machine, the other side of the first pressure regulating valve is in threaded connection with a first air pipe, one side of the second pressure regulating valve is connected with the high-pressure air machine, the other side of the second pressure regulating valve is in threaded connection with a second air pipe, and the first air pipe and the second air pipe are hoses.
Further, the flange on the higher side of the bottom of the venturi feeding hopper is connected with a first air conveying pipe connecting pipe, the flange on the other side of the first air conveying pipe connecting pipe is connected with the first air conveying pipe, and the high-pressure air is used for forming negative pressure on the venturi feeding hopper.
Further, the crushing cavity further comprises a fixed plate, a fixed block, a supporting rod, a first locking ring, a second locking ring, a locker, a second crushing disc, an inner cavity upper disc, an inner cavity lower disc, an inner cavity ring, a feeding port, an air inlet and a crushing cavity air inlet pipe, one side of the crushing cavity air inlet pipe is in flange connection with the second air conveying pipe, the top of the first crushing disc is welded with the crushing cavity feeding pipe, the bottom of the second crushing disc is welded with the crushing cavity air inlet pipe, the bottom of the first crushing disc is attached to the top of the second crushing disc, the first locking ring and the second locking ring are circumferentially pressed on the first crushing disc and the second crushing disc, the locker is in bolt connection with two sides of the first locking ring and the second locking ring, the fixed plate is in bolt connection with the frame, the fixed plate is welded with the fixed block, the top of the supporting rod is in threaded connection with the top of the fixed block, the supporting rod is welded at the bottom of the second crushing disc, the inner bearing of the first crushing disc is connected with the inner cavity upper disc, the inner bearing of the second crushing disc is connected with the inner cavity lower disc, high-pressure air moves at high speed in an inner cavity formed by the first crushing disc and the second crushing disc and drives the inner cavity upper disc and the inner cavity lower disc to rotate, the outer circles of the inner cavity upper disc and the inner cavity lower disc are connected with the inner cavity ring through bolts, the top of the inner cavity upper disc is provided with the feeding hole, multiple groups of air inlets are symmetrically arranged in the circumferential direction of the inner cavity, high-pressure air enters the inner cavity formed by the inner cavity upper disc and the inner cavity lower disc through the air inlets, the middle of the inner cavity upper disc and the middle of the first crushing disc are of hollow structures, the middle of the inner cavity lower disc is of solid structures, the middle of the inner cavity upper disc and the inner cavity lower disc are provided with a certain gap, the aluminum nitride particles after collision and crushing become aluminum nitride powder, and the aluminum nitride powder enters the hollow pipeline of the upper disc of the inner cavity through the gap.
Further, the gas-powder separator also comprises a separator cover, a separation barrel fixing plate, a precipitation opening, a filter screen and a steady flow disc, wherein the separator air inlet pipe is welded on one side of the separation barrel close to the middle, the separation barrel air outlet is welded on one side of the separation barrel close to the top, the fixing plate is welded on one side of the separation barrel close to the bottom, the fixing plate is connected with the frame through bolts, the gas-powder separator is fixed through the fixing plate, the top of the separation barrel is in threaded connection with the separator cover, the precipitation opening is welded on the bottom of the separation barrel, the steady flow disc and the filter screen are arranged inside the separation barrel, a plurality of round holes are formed in the steady flow disc and used for stabilizing air flow, the filter screen is positioned on one side of the top of the steady flow disc, the filter screen is made of tough chemical synthetic fiber materials, and the hole size of the filter screen is determined according to the fineness of aluminum nitride powder, so that aluminum nitride powder is prevented from continuously upwards along with high-pressure air.
Further, the sedimentation port bottom threaded connection has the collecting vessel, the collecting vessel top is provided with the collecting vessel venthole, the venthole is used for slowly discharging air.
Further, fan device still includes motor, motor connection pad, carousel, flabellum, the motor is connected the motor connection pad, motor connection pad bolted connection fan housing, motor output shaft key connects the carousel, the carousel welding has the multiunit the flabellum, the motor drives carousel and flabellum rotate, guide high-pressure air discharge.
Further, cartridge filter device still includes filtration top cap, top cap exhaust hole, filter layer, cartridge filter drain pan, filter cylinder bottom welding the cartridge filter drain pan, cartridge filter drain pan bolted connection the fan housing top, filter cylinder top threaded connection the filtration top cap, filtration top cap top circumferencial direction is provided with multiunit top cap exhaust hole, high-pressure air follows the top cap exhaust hole discharges, the inside top one side interference connection that is close to of filtration top cap the filter layer, the filter layer filters the aluminium nitride powder that high-pressure air carried at last, effectively prevents air pollution.
The invention has the beneficial effects that:
1. in order to solve the problem of environmental pollution caused by powder carried in the discharged high-pressure gas in the existing high-pressure gas flow crushing device during the preparation of aluminum nitride powder, the invention greatly reduces the pollution to air while ensuring the preparation speed by arranging the filter screen in the gas-powder separator and the filter layer in the filter cartridge device, thereby having higher popularization;
2. in order to solve the problem that the fineness precision of the prepared powder cannot be guaranteed in the process of preparing aluminum nitride powder by the existing high-pressure airflow crushing device, a certain gap is kept between the middle part of the upper disc of the inner cavity and the middle part of the lower disc of the inner cavity, so that the aluminum nitride particles after collision and crushing are changed into aluminum nitride powder, the particle size of the aluminum nitride powder is greatly reduced to pass through the gap, and the problem that the fineness of the prepared part of powder is overlarge is effectively solved;
3. in order to solve the problem that in the existing high-pressure airflow crushing device for preparing aluminum nitride powder, part of particles flow downwards to the bottom along with high-pressure airflow to fluidize, and an airflow crusher is easy to form dead angles at the bottom of a cylinder.
Drawings
FIG. 1 is an assembly drawing of a high-pressure airflow pulverizing apparatus for preparing aluminum nitride powder according to the present invention;
FIG. 2 is a schematic view of a feeding device in a high-pressure airflow crushing device for preparing aluminum nitride powder according to the invention;
FIG. 3 is a schematic view of a high-pressure air machine and a crushing cavity in a high-pressure airflow crushing device for preparing aluminum nitride powder according to the invention;
FIG. 4 is a schematic view of a pulverizing chamber in a high-pressure airflow pulverizing apparatus for preparing aluminum nitride powder according to the present invention;
FIG. 5 is a cross-sectional view of a pulverizing chamber in a high-pressure airflow pulverizing apparatus for preparing aluminum nitride powder according to the present invention;
fig. 6 is a schematic diagram of a gas-powder separator, a fan device and a filter cartridge device in the high-pressure airflow crushing equipment for preparing aluminum nitride powder according to the invention.
The reference numerals are explained as follows:
1. a frame; 2. a feeding device; 201. a feed barrel; 202. a feed support plate; 203. a first feed tube; 204. a slide rail; 205. a reciprocating motor; 206. a slide block; 207. a reciprocating feed cylinder; 208. a second feed tube; 3. a high-pressure air machine; 4. crushing the cavity; 401. a fixing plate; 402. a fixed block; 403. a support rod; 404. a first locking ring; 405. a second locking ring; 406. a locker; 407. a first shredder plate; 408. a second shredder plate; 409. an inner cavity upper plate; 410. an inner cavity lower plate; 411. an inner cavity ring; 412. a feed inlet; 413. an air inlet; 5. a gas-powder separator; 501. a separator cover; 502. a separation barrel; 503. a separation barrel fixing plate; 504. a precipitation port; 505. a filter screen; 506. a steady flow disk; 507. an air outlet of the separation barrel; 6. a collecting barrel; 601. an air outlet hole of the collecting barrel; 7. a fan device; 701. a blower housing; 702. a motor; 703. a motor connecting disc; 704. a turntable; 705. a fan blade; 8. a filter cartridge assembly; 801. a filter cylinder; 802. a filter top cover; 803. a top cover vent hole; 804. a filter layer; 805. a filter cartridge bottom case; 9. a first pressure regulating valve; 10. a second pressure regulating valve; 11. a first gas pipe; 12. a venturi feed hopper; 13. a first gas pipe connection pipe; 14. a crushing cavity feeding pipe; 15. a second gas pipe; 16. a crushing cavity air inlet pipe; 17. a crushing cavity air outlet pipe; 18. a separator inlet pipe; 19. an air inlet duct of the fan; 20. and a fan connecting disc.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
as shown in fig. 1-6, the high-pressure air flow crushing equipment for preparing aluminum nitride powder comprises a frame 1, a feeding device 2, a high-pressure air machine 3, a crushing cavity 4, a gas-powder separator 5 and a fan device 7.
Wherein, feed arrangement 2 includes the feedwell 201, feeding backup pad 202, first inlet pipe 203, slide rail 204, reciprocating motor 205, slider 206, reciprocal feed cylinder 207, second inlet pipe 208, frame 1 top one side bolted connection feeding backup pad 202, feeding backup pad 202 welding is on the outer cylinder of feedwell 201, frame 1 welding reciprocating motor 205 and slide rail 204, slide rail 204 top sliding connection slider 206, slider 206 top welding reciprocal feed cylinder 207, reciprocating motor 205 output shaft bolted connection reciprocal feed cylinder 207, feedwell 201 bottom threaded connection first inlet pipe 203, first inlet pipe 203 opposite side threaded connection reciprocal feed cylinder 207, reciprocal feed cylinder 207 is close to venturi feeder hopper 12 one side threaded connection second inlet pipe 208 one side threaded connection venturi feeder hopper 12, frame 1 bottom is close to feed arrangement 2 one side and is placed high-pressure air machine 3, high-pressure air machine 3 top bolted connection has first air-vent valve 9 and second air-vent valve 10, high-pressure air machine 3 is connected to one side of first air-vent valve 9 opposite side threaded connection first air-vent pipe 11, second air-vent valve 10 one side is connected high-pressure air machine 3, second air-vent pipe 10 opposite side threaded connection second air-vent pipe 15.
Wherein the crushing cavity 4 comprises a fixed plate 401, a fixed block 402, a supporting rod 403, a first locking ring 404, a second locking ring 405, a locker 406, a first crushing disc 407, a second crushing disc 408, an inner cavity upper disc 409, an inner cavity lower disc 410, an inner cavity ring 411, a feed inlet 412, an air inlet 413, a crushing cavity air inlet pipe 16 and a crushing cavity feed pipe 14, a first air pipe connecting pipe 13 is connected with a flange on the higher side of the bottom of the venturi feed hopper 12, a crushing cavity feed pipe 14 is connected with a flange on the lower side of the bottom of the venturi feed hopper 12, a first air pipe 11 is connected with a flange on the other side of the first air pipe connecting pipe 13, a crushing cavity air outlet pipe 17 is connected with a flange on the top of the first crushing disc 407, a second air pipe 15 is connected with a flange on one side of the crushing cavity air inlet pipe 16, a crushing cavity feed pipe 14 is welded on the top of the first crushing disc 407, a crushing cavity air inlet pipe 16 is welded on the bottom of the second crushing disc 408, the bottom of the first crushing disc 407 is attached to the top of the second crushing disc 408, the first locking ring 404 and the second locking ring 405 are used for surrounding and pressing the first crushing disc 407 and the second crushing disc 408, the locking device 406 is used for connecting the two sides of the first locking ring 404 and the second locking ring 405 by bolts, the fixing plate 401 is connected with the frame 1 by bolts, the fixing plate 401 is used for welding the fixing block 402, the top of the fixing block 402 is connected with the supporting rod 403 by threads, the supporting rod 403 is welded at the bottom of the second crushing disc 408, the inner bearing of the first crushing disc 407 is connected with the inner cavity upper disc 409, the inner bearing of the second crushing disc 408 is connected with the inner cavity lower disc 410, the outer circle of the inner cavity upper disc 409 and the inner cavity lower disc 410 are connected with the inner cavity ring 411 by bolts, the top of the inner cavity upper disc 409 is provided with the feed inlet 412, the inner cavity ring 411 is symmetrically provided with a plurality of groups of air inlets 413, the middle of the inner cavity upper disc 409 and the first crushing disc 407 is of hollow structure, the middle of the inner cavity lower disc 410 is of solid structure, the middle of the upper cavity plate 409 is spaced from the lower cavity plate 410.
Wherein, the gas-powder separator 5 comprises a separator cover 501, a separator barrel 502, a separator barrel fixing plate 503, a sedimentation port 504, a filter screen 505, a steady flow disc 506, a separator barrel air outlet 507 and a separator air inlet pipe 18, the other side of the outlet pipe 17 of the crushing cavity is connected with the separator air inlet pipe 18 in a flange way, the separator air inlet pipe 18 is welded on one side of the separator barrel 502 close to the middle part, the separator barrel air outlet 507 is welded on one side of the separator barrel 502 close to the top, the fixing plate 503 is welded on one side of the separator barrel 502 close to the bottom, the fixing plate 503 is connected with a frame 1 in a bolt way, the top of the separator barrel 502 is connected with the separator cover 501 in a threaded way, the bottom of the separator barrel 502 is welded with the sedimentation port 504, the bottom of the sedimentation port 504 is connected with a collecting barrel 6 in a threaded way, the top of the collecting barrel 6 is provided with a collecting barrel air outlet 601, the inside of the separator barrel 502 is provided with the steady flow disc 506 and the filter screen 505, the filter screen 505 is positioned on one side of the top of the steady flow disc 506, the filter screen 505 is made of tough chemical synthetic fiber material, the flange of the separator barrel air outlet 507 is connected with a fan air inlet 19 in a flange way, the other side of the fan inlet 19 is connected with a fan 20,
wherein, fan unit 7 includes fan housing 701, motor 702, motor connection pad 703, carousel 704, flabellum 705, fan connection pad 20 welding is on fan housing 701, motor 702 connects motor connection pad 703, motor connection pad 703 bolted connection fan housing 701, motor 702 output shaft key connects carousel 704, carousel 704 welding has multiunit flabellum 705, filter cartridge unit 8 includes filter cylinder 801, filter top cap 802, top cap exhaust hole 803, filter layer 804, filter cartridge drain pan 805, filter cylinder 801 bottom welding filter cartridge drain pan 805, filter cartridge drain pan 805 bolted connection fan housing 701 top, filter cylinder 801 top threaded connection filter top cap 802, filter top cap 802 top circumferencial direction is provided with multiunit top cap exhaust hole 803, filter top cap 802 inside is close to top one side interference connection filter layer 804.
The crushing method of the high-pressure airflow crushing equipment for preparing the aluminum nitride powder comprises the following steps of:
s1, starting a reciprocating motor 205, a high-pressure air machine 3 and a motor 702, checking the operation conditions of all mechanisms, disassembling a separator cover 501 and a filter top cover 802, checking the use conditions of a filter screen 505 and a filter layer 804, and timely replacing the filter screen 505 and the filter layer 804 when needed to ensure normal filtration, and after the checking is finished, loading the separator cover 501 and the filter top cover 802 back;
s2, pouring raw material aluminum nitride particles into a feed barrel 201, driving a reciprocating feed cylinder 207 and a sliding block 206 to reciprocate on a sliding rail 204 by a reciprocating motor 205, enabling the aluminum nitride particles to sequentially enter the reciprocating feed cylinder 207 through a first feed pipe 203, enabling the reciprocating feed cylinder 207 to feed the raw material aluminum nitride particles inside into a second feed pipe 208 in the reciprocating motion, and enabling the raw material aluminum nitride particles to enter the venturi feed hopper 12 through the second feed pipe 208;
s3, the high-pressure air machine 3 compresses air to form high-pressure air, the pressure is regulated through the first pressure regulating valve 9, and the high-pressure air is conveyed into the venturi feeding hopper 12 through the first air conveying pipe 11 and the first air conveying pipe connecting pipe 13;
s4, the high-pressure air of the Venturi feeding hopper 12 forms negative pressure, and the negative pressure drives raw material aluminum nitride particles in the Venturi feeding hopper 12 to sequentially pass through the crushing cavity feeding pipe 14, the first crushing disc 407 and the feeding port 412 to enter an inner cavity formed by the inner cavity upper disc 409 and the inner cavity lower disc 410;
s5, the high-pressure air machine 3 regulates the pressure of the high-pressure air through the second pressure regulating valve 10, and the regulated high-pressure air is conveyed into an inner cavity formed by the first crushing disc 407 and the second crushing disc 408 through the second air conveying pipe 15 and the crushing cavity air inlet pipe 16;
s6, high-pressure air moves at high speed in an inner cavity formed by the first crushing disc 407 and the second crushing disc 408 and drives the inner cavity upper disc 409 and the inner cavity lower disc 410 to rotate, the high-pressure air enters the inner cavity formed by the inner cavity upper disc 409 and the inner cavity lower disc 410 through a plurality of groups of air inlets 413, U-shaped air flow is formed due to the hollow structure of the inner cavity upper disc 409 and the solid structure of the inner cavity lower disc 410, aluminum nitride particles collide with each other under the action of the high-pressure air, and according to centrifugal force, large particles rotate on the outer side and small particles rotate on the inner side;
s7, the aluminum nitride particles after collision and crushing are changed into aluminum nitride powder, high-pressure air drives the aluminum nitride powder to enter a hollow pipeline of an inner cavity upper disc 409 through a gap between the inner cavity upper disc 409 and an inner cavity lower disc 410, and the aluminum nitride powder enters the separation barrel 502 through a crushing cavity air outlet pipe 17 and a separator air inlet pipe 18;
s8, in the separation barrel 502, aluminum nitride powder enters the collection barrel 6 through the sedimentation port 504, high-pressure air enters the separation barrel air outlet 507 through the flow stabilizing disc 506, and part of aluminum nitride powder is slowly sedimentated again after being blocked by the filter screen 505 and enters the collection barrel 6;
s9, under the condition that the motor 702 drives the turntable 704 and the fan blades 705 to rotate, high-pressure air is led to enter the fan housing 701 through the fan air inlet duct 19 and enter the filtering cylinder 801, and finally the high-pressure air is discharged from the top cover exhaust hole 803 of the filtering top cover 802, the filtering layer 804 filters aluminum nitride powder carried by the high-pressure air, so that the pollution to the air is greatly reduced while the preparation speed is ensured;
s10, stopping the reciprocating motor 205, the high-pressure air machine 3 and the motor 702, taking down the collecting barrel 6, and collecting aluminum nitride powder in the collecting barrel 6 to finish the preparation work of the aluminum nitride powder.
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 their equivalents.
Claims (10)
1. High-pressure airflow crushing equipment for preparing aluminum nitride powder, which is characterized in that: including frame (1), feed arrangement (2), high-pressure air machine (3), crushing cavity (4), gas powder separator (5) and fan device (7), feed arrangement (2) are including second inlet pipe (208), second inlet pipe (208) one side threaded connection has venturi feeder hopper (12), crushing cavity (4) include first crushing dish (407) and crushing cavity inlet pipe (14), lower one side flange joint in venturi feeder hopper (12) bottom crushing cavity inlet pipe (14), first crushing dish (407) top flange joint has crushing cavity outlet duct (17), gas powder separator (5) are including separation barrel (502), separation barrel air outlet (507) and separator income trachea (18), separation barrel air outlet (507) opposite side flange joint has fan inlet duct (19), fan inlet duct (19) opposite side flange joint has fan (20), fan device (7) include fan shell (701) fan shell (20) fan welding connection pad (701), the top of the fan housing (701) is connected with a filter cylinder body (801) of the filter cylinder device (8).
2. The high-pressure air flow pulverizing apparatus for preparing aluminum nitride powder according to claim 1, wherein: feed arrangement (2) still includes feedwell (201), feeding backup pad (202), first inlet pipe (203), slide rail (204), reciprocating motor (205), slider (206) and reciprocal feed cylinder (207), frame (1) top one side bolted connection feeding backup pad (202), feeding backup pad (202) welding is in on the outer cylinder of feedwell (201), frame (1) welding reciprocating motor (205) and slide rail (204), slide rail (204) top sliding connection slider (206), slider (206) top welding reciprocating feed cylinder (207), reciprocating motor (205) output shaft bolted connection reciprocating feed cylinder (207), feedwell (201) bottom threaded connection first inlet pipe (203), first inlet pipe (203) opposite side threaded connection reciprocating feed cylinder (207), reciprocating feed cylinder (207) are close to venturi feeder hopper (12) one side threaded connection second inlet pipe (208).
3. The high-pressure air flow pulverizing apparatus for preparing aluminum nitride powder according to claim 1, wherein: the high-pressure air machine is characterized in that the high-pressure air machine (3) is placed at one side of the bottom of the frame (1) close to the feeding device (2), a first pressure regulating valve (9) and a second pressure regulating valve (10) are connected to the top of the high-pressure air machine (3) through bolts, the high-pressure air machine (3) is connected to one side of the first pressure regulating valve (9), a first air conveying pipe (11) is connected to the other side of the first pressure regulating valve (9) through threads, the high-pressure air machine (3) is connected to one side of the second pressure regulating valve (10), and a second air conveying pipe (15) is connected to the other side of the second pressure regulating valve (10) through threads.
4. The high-pressure air flow pulverizing apparatus for preparing aluminum nitride powder according to claim 1, wherein: the venturi feeder hopper (12) bottom higher one side flange joint has first gas-supply pipe connecting pipe (13), first gas-supply pipe connecting pipe (13) opposite side flange joint first gas-supply pipe (11).
5. The high-pressure air flow pulverizing apparatus for preparing aluminum nitride powder according to claim 1, wherein: the crushing cavity (4) further comprises a fixing plate (401), a fixing block (402), a supporting rod (403), a first locking ring (404), a second locking ring (405), a locker (406), a second crushing disc (408), an inner cavity upper disc (409), an inner cavity lower disc (410), an inner cavity ring (411), a feed inlet (412), an air inlet (413) and a crushing cavity air inlet pipe (16), one side of the crushing cavity air inlet pipe (16) is connected with the second air conveying pipe (15) in a flange manner, the top of the first crushing disc (407) is welded with the crushing cavity feed pipe (14), the bottom of the second crushing disc (408) is welded with the crushing cavity air inlet pipe (16), the bottom of the first crushing disc (407) is attached to the top of the second crushing disc (408), the first locking ring (404) and the second locking ring (405) are circumferentially pressed together, the locker (406) is connected with the first crushing disc (407) and the second crushing disc (408) in a bolt manner, the two sides of the locking ring (404) and the second locking ring (405) are welded with the two sides of the supporting rod (403), the fixing block (401) is connected with the fixing plate (401), the bracing piece (403) is welded in second crushing dish (408) bottom, first crushing dish (407) inner bearing connects inner chamber upper disc (409), second crushing dish (408) inner bearing connects inner chamber lower disc (410), inner chamber upper disc (409) and inner chamber lower disc (410) excircle bolted connection inner chamber ring (411), inner chamber upper disc (409) top sets up feed inlet (412), inner chamber ring (411) circumferencial direction symmetry sets up multiunit air inlet (413), inner chamber upper disc (409) with first crushing dish (407) middle part is hollow structure, inner chamber lower disc (410) middle part is solid structure, inner chamber upper disc (409) middle part with inner chamber lower disc (410) have certain clearance.
6. The high-pressure air flow pulverizing apparatus for preparing aluminum nitride powder according to claim 1, wherein: the gas-powder separator (5) further comprises a separator cover (501), a separation barrel fixing plate (503), a precipitation opening (504), a filter screen (505) and a steady flow disc (506), wherein the separator gas inlet pipe (18) is welded on one side, close to the middle, of the separation barrel (502), the separation barrel air outlet (507) is welded on one side, close to the top, of the separation barrel (502), the fixing plate (503) is welded on one side, close to the bottom, of the separation barrel (502) is connected with the frame (1) through bolts, the top of the separation barrel is connected with the separator cover (501) through threads, the precipitation opening (504) is welded on the bottom of the separation barrel (502), the steady flow disc (506) and the filter screen (505) are arranged inside the separation barrel, the filter screen (505) is positioned on one side, close to the top, and the filter screen (505) is made of tough synthetic fibers.
7. The high-pressure air flow pulverizing apparatus for preparing aluminum nitride powder according to claim 1, wherein: the bottom of the sedimentation port (504) is connected with a collecting barrel (6) in a threaded mode, and a collecting barrel air outlet hole (601) is formed in the top of the collecting barrel (6).
8. The high-pressure air flow pulverizing apparatus for preparing aluminum nitride powder according to claim 1, wherein: the fan device (7) further comprises a motor (702), a motor connecting disc (703), a rotary disc (704) and fan blades (705), wherein the motor (702) is connected with the motor connecting disc (703), the motor connecting disc (703) is connected with the fan housing (701) through bolts, an output shaft of the motor (702) is connected with the rotary disc (704) through keys, and the rotary disc (704) is welded with a plurality of groups of the fan blades (705).
9. The high-pressure air flow pulverizing apparatus for preparing aluminum nitride powder according to claim 1, wherein: the filter cartridge device (8) further comprises a filter top cover (802), a top cover exhaust hole (803), a filter layer (804) and a filter cartridge bottom shell (805), the filter cartridge bottom shell (805) is welded at the bottom of the filter cartridge body (801), the filter cartridge bottom shell (805) is connected with the top of the fan housing (701) through bolts, the top of the filter cartridge body (801) is connected with the filter top cover (802) through threads, a plurality of groups of top cover exhaust holes (803) are formed in the circumferential direction of the top of the filter top cover (802), and the filter top cover (802) is connected with the filter layer (804) through interference on one side close to the top inside.
10. A pulverizing method of a high-pressure airflow pulverizing apparatus for producing aluminum nitride powder, applied to a high-pressure airflow pulverizing apparatus for producing aluminum nitride powder according to any one of claims 1 to 9, characterized by comprising the steps of:
s1, starting the reciprocating motor (205), the high-pressure air machine (3) and the motor (702), and checking the running conditions of all mechanisms;
s2, pouring aluminum nitride particles into the feeding barrel (201), wherein the reciprocating motor (205) drives the reciprocating feeding barrel (207) and the sliding block (206) to reciprocate on the sliding rail (204), and the aluminum nitride particles sequentially pass through the first feeding pipe (203), the reciprocating feeding barrel (207) and the second feeding pipe (208) to enter the venturi feeding hopper (12);
s3, the high-pressure air machine (3) conveys high-pressure air into the venturi feeding hopper (12) through the first pressure regulating valve (9), the first air conveying pipe (11) and the first air conveying pipe connecting pipe (13);
s4, high-pressure air of the Venturi feeding hopper (12) drives aluminum nitride particles to sequentially pass through the crushing cavity feeding pipe (14), the first crushing disc (407) and the feeding hole (412) to enter an inner cavity formed by the inner cavity upper disc (409) and the inner cavity lower disc (410);
s5, the high-pressure air machine (3) conveys high-pressure air into an inner cavity formed by the first crushing disc (407) and the second crushing disc (408) through the second pressure regulating valve (10), the second air conveying pipe (15) and the crushing cavity air inlet pipe (16);
s6, high-pressure air moves at high speed in an inner cavity formed by the first crushing disc (407) and the second crushing disc (408) and drives the inner cavity upper disc (409) and the inner cavity lower disc (410) to rotate, the high-pressure air enters the inner cavity formed by the inner cavity upper disc (409) and the inner cavity lower disc (410) through the air inlet (413), aluminum nitride particles collide with each other under the action of the high-pressure air, and according to centrifugal force, large particles rotate outside and small particles rotate inside;
s7, changing the aluminum nitride particles after collision and crushing into aluminum nitride powder, wherein high-pressure air drives the aluminum nitride powder to enter a hollow pipeline of the inner cavity upper plate (409) through a gap between the inner cavity upper plate (409) and the inner cavity lower plate (410), and the aluminum nitride powder enters the separation barrel (502) through an air outlet pipe (17) of the crushing cavity and an air inlet pipe (18) of the separator;
s8, aluminum nitride powder enters the collecting barrel (6) through the sedimentation port (504), high-pressure air enters the air outlet (507) of the separating barrel through the steady flow disc (506), and part of aluminum nitride powder is blocked by the filter screen (505);
s9, under the condition that the motor (702) drives the rotary disc (704) and the fan blades (705) to rotate, high-pressure air enters the fan shell (701) through the fan air inlet duct (19) and enters the filter cylinder (801), and finally the high-pressure air is discharged from the top cover exhaust hole (803) of the filter top cover (802), and the filter layer (804) filters aluminum nitride powder carried by the high-pressure air finally;
s10, stopping the reciprocating motor (205), the high-pressure air machine (3) and the motor (702), taking down the collecting barrel (6), collecting aluminum nitride powder in the collecting barrel (6), and completing aluminum nitride powder preparation work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310273375.4A CN116174118A (en) | 2023-03-21 | 2023-03-21 | High-pressure airflow crushing equipment for preparing aluminum nitride powder and crushing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310273375.4A CN116174118A (en) | 2023-03-21 | 2023-03-21 | High-pressure airflow crushing equipment for preparing aluminum nitride powder and crushing method thereof |
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| CN116174118A true CN116174118A (en) | 2023-05-30 |
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| CN202310273375.4A Pending CN116174118A (en) | 2023-03-21 | 2023-03-21 | High-pressure airflow crushing equipment for preparing aluminum nitride powder and crushing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116889917A (en) * | 2023-09-11 | 2023-10-17 | 汕头市捷成生物科技有限公司 | High-pressure air flow back rotary collision type crushing device and application thereof in konjaku flour preparation |
-
2023
- 2023-03-21 CN CN202310273375.4A patent/CN116174118A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116889917A (en) * | 2023-09-11 | 2023-10-17 | 汕头市捷成生物科技有限公司 | High-pressure air flow back rotary collision type crushing device and application thereof in konjaku flour preparation |
| CN116889917B (en) * | 2023-09-11 | 2023-11-17 | 汕头市捷成生物科技有限公司 | High-pressure air flow back rotary collision type crushing device and application thereof in konjaku flour preparation |
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