CN110793302B - Metal powder dryer - Google Patents

Metal powder dryer Download PDF

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Publication number
CN110793302B
CN110793302B CN201911131647.7A CN201911131647A CN110793302B CN 110793302 B CN110793302 B CN 110793302B CN 201911131647 A CN201911131647 A CN 201911131647A CN 110793302 B CN110793302 B CN 110793302B
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CN
China
Prior art keywords
air inlet
blanking
drying tank
fixed ring
inlet pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201911131647.7A
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Chinese (zh)
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CN110793302A (en
Inventor
魏放
张柯
唐跃跃
叶国晨
蒋保林
许荣玉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Vilory Advanced Materials Technology Co Ltd
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Jiangsu Vilory Advanced Materials Technology Co Ltd
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Priority to CN201911131647.7A priority Critical patent/CN110793302B/en
Publication of CN110793302A publication Critical patent/CN110793302A/en
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Publication of CN110793302B publication Critical patent/CN110793302B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B17/00Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
    • F26B17/10Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by fluid currents, e.g. issuing from a nozzle, e.g. pneumatic, flash, vortex or entrainment dryers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/28Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46Constructional details of screens in general; Cleaning or heating of screens
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/001Drying-air generating units, e.g. movable, independent of drying enclosure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00Details of general application not covered by group F26B21/00 or F26B23/00
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/04Agitating, stirring, or scraping devices
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

The metal powder dryer comprises a blanking component and a gas powder mixing component, wherein the blanking component comprises a blanking component and a bulk component; the blanking assembly comprises a dust cover, a blanking bin, a blanking hopper and a blanking belt, and comprises a bulk material plate group, a fixed ring, a transmission assembly and a positioning ring, and further comprises an ultrasonic vibration sieve, wherein the top edge of the ultrasonic vibration sieve is in sealing fit with the bottom surface of the positioning ring; the device also comprises a sealing ring, an air inlet pipe, a drying tank, a discharge pipe, a cyclone collector and a guide plate; the bottom surface of the drying tank is provided with an upwards-protruding guide plate, and the bottom end of the drying tank is fixedly communicated with a discharge pipe which is communicated with the cyclone collector. The drier has the advantages of more uniform metal powder dispersion, higher drying efficiency and less equipment abrasion.

Description

Metal powder dryer
Technical Field
The invention relates to a metal powder dryer, in particular to 3D printing metal powder drying equipment.
Background
The metal powder is usually stored in a sealed storage cylinder or tank after the aerosolization production, but the gas may leak even in the sealed state, and the metal powder is usually kept at a temperature slightly higher than room temperature before the storage, and the air sealed together with the metal powder also contains moisture, and condensation is formed after the temperature is reduced. When the metal powder is mixed or packaged, a small amount or trace amount of moisture can cause serious agglomeration for the metal powder with very small specific surface area. Therefore, re-drying of the metal powder is one of the necessary steps.
The basic idea of the existing metal powder drying equipment is to dry the metal powder by contacting the metal powder with hot dry air or inert gas. As in the prior art, chinese patent CN201810898675.0 is a novel metal powder dryer device, and the technical scheme thereof is as follows: including metal powder dryer device jar body, metal powder dryer device feed inlet right side is equipped with the heater, the heater lower part is connected with the blast blower, the blast blower lower part is fixed with sealing device, sealing device lower part left side is equipped with the draught fan, the draught fan lower part is connected with the jar body, the internal portion of jar is fixed with the guipure, the guipure left side is equipped with the heat preservation and presss from both sides the cover, heat preservation presss from both sides cover lower part right side and is fixed with the wind distributor, heater lower part right side is fixed with the governing valve, the governing valve lower part is fixed with the detection stripe, detection stripe lower part left side is fixed with the bearing, bearing lower part right side is fixed with temperature sensor, temperature sensor inboard is fixed with the heat preservation chamber, the heat preservation chamber lower part is fixed with the heat medium output tube.
There are several significant problems with this device: 1. the blanking and air inducing points of the metal powder are very close, the metal powder basically falls down freely in the tank body, especially in the lower part of the tank body, and the drying efficiency is poor; 2. the density of the metal powder is high, and the direct blanking can impact the internal components of the abrasion equipment; 3. the induced draft direction of draught fan has the problem, and unilateral induced draft can lead to the metal powder to move the orbit irregular in the jar internal, can't effectively guarantee metal powder and the abundant contact of hot dry air.
Disclosure of Invention
The invention aims to provide the metal powder dryer which can fully ensure that metal powder is contacted with hot dry air, and has high drying rate and very small impact and abrasion to equipment.
In order to achieve the above purpose, the invention comprises a blanking component and a gas-powder mixing component, wherein the blanking component comprises a blanking component and a bulk component;
the blanking assembly comprises a dust cover, a blanking bin, a blanking hopper and a blanking belt, wherein the dust cover consists of a cylindrical cylinder and a spherical top surface, and the edge of the spherical top surface is fixed with the top edge of the cylindrical cylinder in a sealing way;
the top opening of the dust cover is communicated with the discharging opening of the discharging bin in a sealing way;
a blanking belt is fixed in the blanking bin, and the belt surface of the blanking belt is positioned right below the blanking opening of the blanking hopper; the discharging end is positioned right above the top opening of the dust cover;
the bulk cargo assembly comprises a bulk cargo plate group, a fixed ring, a transmission assembly and a positioning ring, wherein the bulk cargo plate group 1 consists of 3-6 right-angle triangular plates, one right-angle side of the triangular plates with the same height is overlapped, the other right-angle side of the triangular plates is fixedly connected with the fixed ring through a fixed rod, the extension lines of the right-angle sides overlapped by the triangular plates pass through the center of the fixed ring, the included angle between the top ends of the right-angle sides and the inclined sides of the triangular plates, which are contacted with each other, is 50-70 degrees, and the distance between the top ends of the right-angle sides of the bottom sides of the triangular plates and the fixed ring is 1/4-1/6 of the inner diameter of the fixed ring; the outer circumference of the fixed ring is in sliding fit with the positioning ring, the transmission assembly is matched with the fixed ring, and the transmission assembly drives the fixed ring to rotate on the positioning ring;
the bottom edge of the cylindrical cylinder of the dust cover is in sliding sealing fit with the top surface of the fixed ring or the outer surface of the bottom of the cylindrical cylinder is in sliding sealing fit with the inner annular surface of the fixed ring;
the bulk material assembly also comprises an ultrasonic vibration screen, and the top edge of the ultrasonic vibration screen is in sealing fit with the bottom surface of the positioning ring;
the device also comprises a sealing ring, an air inlet pipe, a drying tank, a discharge pipe, a cyclone collector and a guide plate;
the bottom edge of the ultrasonic vibration screen is fixedly connected with the top edge of the drying tank in a sealing way through a sealing ring;
the number of the air inlet pipes is even and is 2-6, the air inlet pipes are symmetrically arranged relative to the axis of the drying tank, the included angle alpha between the axis of the air inlet pipe and the horizontal plane is 10-18 degrees, the air inlet pipes are obliquely downwards arranged, and the air inlet pipes are tangential to the tank wall of the drying tank;
the bottom surface of the drying tank 60 is provided with an upwardly convex guide plate 66, and the bottom end of the drying tank is fixedly communicated with a discharge pipe which is communicated with the cyclone collector.
Further, the drying tank also comprises a guide cover, a drainage cap, a second air inlet pipe and a communicating pipe;
the guide cover 61 is a conical cover with a hemispherical top end and is coaxial with the drying tank; a gap is reserved between the bottom end of the flow guide plate and the flow guide plate, the surface of the flow guide cover is provided with uniformly arranged flow guide caps, the flow guide caps are protruded towards the outer side of the flow guide cover and are communicated with the inner side and the outer side of the flow guide cover, the opening of the flow guide cap is inclined downwards, and an included angle beta between the opening direction and the horizontal direction is within the range of 5-12 degrees;
the second air inlet pipe is positioned in the air guide sleeve and is coaxial with the air guide sleeve, a ventilation slit which is vertically arranged is arranged on the surface of the second air inlet pipe, air is fed into the inner wall of the air guide sleeve, the air inlet speed is not greater than the air inlet speed of the air inlet pipe, and the communicating pipe is communicated with the bottom end of the second air inlet pipe and is used for feeding air into the second air inlet pipe.
Preferably, the diameter of the bottom edge of the air guide sleeve is 1/2-3/4 of the inner diameter of the drying tank.
Preferably, the longitudinal distance between the bottom surface of the ultrasonic vibration sieve and the top end of the connecting part of the air inlet pipe and the drying tank is 1/10-1/8 of the longitudinal length of the drying tank.
The invention has the beneficial effects that the metal powder can be uniformly dispersed by utilizing the intermittent blanking and the ultrasonic vibration sieve to uniformly blanking, and meanwhile, negative pressure suction and impact on the metal powder are formed by utilizing air flow, so that the drying efficiency of the metal powder is effectively improved, and the impact and abrasion of the dispersed and air flow impact on equipment are very small.
Drawings
Fig. 1 is a schematic diagram of the structure of the present invention.
Fig. 2 is an enlarged view of the data diagram in fig. 1.
Fig. 3 is a schematic view of the structure of the air guide sleeve.
Fig. 4 is a schematic view of a bulk board structure.
In the figure, a blanking assembly 10, a dust cover 11, a blanking bin 12, a blanking hopper 13, a blanking belt 14, a bulk material assembly 20, a bulk material plate group 21, a fixed ring 22, a transmission assembly 23, a positioning ring 24, an ultrasonic vibration sieve 30, a sealing ring 40, an air inlet pipe 50, a drying tank 60, a guide cover 61, a drainage cap 611, a second air inlet pipe 62, a communicating pipe 63, a discharging pipe 64, a cyclone collector 65 and a guide plate 66
Detailed Description
The invention is described in detail below with reference to the accompanying drawings.
The metal powder dryer comprises a blanking component and a gas powder mixing component, and is characterized in that the blanking component comprises a blanking component 10 and a bulk component 20;
the blanking assembly 10 comprises a dust cover 11, a blanking bin 12, a blanking hopper 13 and a blanking belt 14, wherein the dust cover 11 consists of a cylindrical barrel and a spherical top surface, and the edge of the spherical top surface is fixed with the top edge of the cylindrical barrel in a sealing way;
the top opening of the dust cover 11 is communicated with the discharging opening of the discharging bin 12 in a sealing way;
a blanking belt 14 is fixed in the blanking bin 12, and the belt surface of the blanking belt 14 is positioned right below the blanking opening of the blanking hopper 13; the blanking end is positioned right above the top opening of the dust cover 11;
the bulk cargo assembly 20 comprises a bulk cargo plate group 21, a fixed ring 22, a transmission assembly 23 and a positioning ring 24, wherein the bulk cargo plate group 21 consists of 3-6 right-angle triangular plates, one right-angle side of the triangular plates with the same height is overlapped, the other right-angle side of the triangular plates is fixedly connected with the fixed ring 22 through a fixed rod, the extension lines of the right-angle sides overlapped by the triangular plates pass through the center of the fixed ring 22, the included angle between the top ends of the right-angle sides and the inclined sides of the triangular plates which are mutually contacted is 50-70 degrees, and the distance between the tip ends of the right-angle sides of the bottom sides of the triangular plates and the fixed ring is 1/4-1/6 of the inner diameter of the fixed ring; the outer circumference of the fixed ring 22 is in sliding fit with the inner ring of the positioning ring 24, the transmission assembly 23 is matched with the fixed ring 22, and the transmission assembly 23 drives the fixed ring 22 to rotate on the positioning ring 24; the cooperation between the fixed ring 22 and the positioning ring 24 can be that the bottom surface of the fixed ring 22 is provided with an annular bulge, the top surface of the positioning ring 24 is provided with an annular groove for accommodating the annular bulge, the transmission assembly 23 can be a belt or a gear transmission mechanism to cooperate with the fixed ring 22 so as to drive the fixed ring 22 to rotate, the transmission assembly 23 comprises a motor and a gear or a belt pulley, when the gear transmission is used, the gear is meshed with a gear of an outer changing surface of the fixed ring 22, when the belt transmission is used, the belt pulley is positioned on the annular surface of the fixed ring 22, and the motor transmission can drive the fixed ring 22 to rotate;
the bottom edge of the cylindrical cylinder of the dust cover 11 is in sliding sealing fit with the top surface of the fixed ring 22 or the outer surface of the bottom of the cylindrical cylinder is in sliding sealing fit with the inner annular surface of the fixed ring 22;
the bulk material assembly also comprises an ultrasonic vibration screen 30, and the top edge of the ultrasonic vibration screen 30 is in sealing fit with the bottom surface of the positioning ring 24;
also comprises a sealing ring 40, an air inlet pipe 50, a drying tank 60, a discharging pipe 64, a cyclone collector 65 and a guide plate 66;
the bottom edge of the ultrasonic vibration screen 30 is fixedly connected with the top edge of the drying tank 60 in a sealing way through a sealing ring 40;
the number of the air inlet pipes 50 is even and 2-6, the air inlet pipes 50 are symmetrically arranged relative to the axis of the drying tank 60, the included angle alpha between the axis of the air inlet pipe 50 and the horizontal plane is 10-18 degrees, the air inlet pipes 50 are obliquely downwards arranged, and the air inlet pipes 50 are tangential to the tank wall of the drying tank 60; the arrangement can form negative pressure on the lower side of the ultrasonic vibration screen to attract metal powder, so as to avoid or reduce dust in the dust cover 11;
the bottom surface of the drying tank 60 is provided with an upwardly convex deflector 66, and the bottom end of the drying tank 60 is fixedly connected with a discharge pipe 64 which is connected with a cyclone collector 65.
When the drier is used, metal powder can be intermittently fed into the dust cover 11 through the blanking belt 14, the bulk board group 21 rotates along with the fixed ring 22 to scatter the metal powder, the metal powder basically and uniformly falls on the screen mesh of the ultrasonic vibration screen 30, the ultrasonic vibration screen 30 screens the metal powder down, the air inlet pipe 50 is used for air inlet into the drying tank 60, the air inlet can be continuous air inlet, the intermittent air inlet can be matched with the operation of the ultrasonic vibration screen, the air flow speed is 10-50m/s, the temperature is 120-150 ℃, the electromagnetic valve can be fixedly arranged at the pipe orifice of the air inlet pipe 50, the electromagnetic valve is suddenly opened after the air pressure is increased to 1.5-1.8 atmospheres during intermittent air inlet, the instantaneous negative pressure is formed at the lower side of the ultrasonic vibration screen, and the suction is formed on the metal powder to improve the contact area and time of the metal powder and hot dry gas.
In order to improve the drying effect, the drying tank further comprises a guide cover 61, a drainage cap 611, a second air inlet pipe 62 and a communicating pipe 63;
the guide cover 61 is a conical cover with a hemispherical top end and is coaxial with the drying tank 60; a gap is reserved between the bottom end of the flow guide plate and the flow guide plate 66, the surface of the flow guide cover 61 is provided with uniformly arranged flow guide caps 611, the flow guide caps 611 are protruded towards the outer side of the flow guide cover 61 and are communicated with the inner side and the outer side of the flow guide cover 61, the opening of the flow guide caps 611 is inclined downwards, and an included angle beta between the opening direction and the horizontal direction is within the range of 5-12 degrees;
the second air inlet pipe 62 is positioned in the air guide sleeve 61 and is coaxial with the air guide sleeve 61, a vertically arranged ventilation slit is arranged on the surface of the second air inlet pipe 62, air is introduced into the inner wall of the air guide sleeve 61, the air inlet speed is not greater than the air inlet speed of the air inlet pipe 50, and the communicating pipe 63 is communicated with the bottom end of the second air inlet pipe 62 and is used for introducing air into the second air inlet pipe 62;
the diameter of the bottom edge of the guide cover 61 is 1/2-3/4 of the inner diameter of the drying tank 60.
After the guide cover 61 and other parts are added, the dryer becomes slightly more complicated in use, but the effect is better, the air inlet pipe 50 drives the metal powder to rotate, the air outlet inclination angle of the guide cover 61 is small and the air inlet pipe 50 ensures that the metal powder has more residence time in the drying tank, in addition, the guide cover 61 is conical and has air flow inside, so that the actual flowing space of the metal powder is smaller downwards, that is, the lower air flow flowing speed of the drying tank 60 is faster, on one hand, the discharging is convenient, on the other hand, the flow speed is increased, and the drying speed is accelerated.
Through experiments, the longitudinal distance between the bottom surface of the ultrasonic vibration screen 30 and the top end of the air inlet pipe 50 where the air inlet pipe 50 communicates with the drying tank 60 is 1/10-1/8 of the longitudinal length of the drying tank 60.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (1)

1. The metal powder dryer comprises a blanking component and a gas powder mixing component, and is characterized in that the blanking component comprises a blanking component and a bulk component;
the blanking assembly comprises a dust cover, a blanking bin, a blanking hopper and a blanking belt, wherein the dust cover consists of a cylindrical cylinder and a spherical top surface, and the edge of the spherical top surface is fixed with the top edge of the cylindrical cylinder in a sealing way;
the top opening of the dust cover is communicated with the discharging opening of the discharging bin in a sealing way;
a blanking belt is fixed in the blanking bin, and the belt surface of the blanking belt is positioned right below the blanking opening of the blanking hopper; the discharging end is positioned right above the top opening of the dust cover;
the bulk cargo assembly comprises a bulk cargo plate group, a fixed ring, a transmission assembly and a positioning ring, wherein the bulk cargo plate group consists of 3-6 right-angle triangular plates, one right-angle side of each triangular plate with the same height is overlapped, the other right-angle side of each triangular plate is fixedly connected with the fixed ring through a fixed rod, the extension lines of the right-angle sides overlapped by the triangular plates pass through the center of the fixed ring, the included angle between the top ends of the right-angle sides of the triangular plates which are mutually contacted and the inclined sides is 50-70 degrees, and the distance between the top ends of the right-angle sides of the bottom sides of the triangular plates and the fixed ring is 1/4-1/6 of the inner diameter of the fixed ring; the outer circumference of the fixed ring is in sliding fit with the positioning ring, the transmission assembly is matched with the fixed ring, and the transmission assembly drives the fixed ring to rotate on the positioning ring;
the bottom edge of the cylindrical cylinder of the dust cover is in sliding sealing fit with the top surface of the fixed ring or the outer surface of the bottom of the cylindrical cylinder is in sliding sealing fit with the inner annular surface of the fixed ring;
the bulk material assembly also comprises an ultrasonic vibration screen, and the top edge of the ultrasonic vibration screen is in sealing fit with the bottom surface of the positioning ring;
the device also comprises a sealing ring, an air inlet pipe, a drying tank, a discharge pipe, a cyclone collector and a guide plate;
the bottom edge of the ultrasonic vibration screen is fixedly connected with the top edge of the drying tank in a sealing way through a sealing ring;
the number of the air inlet pipes is even and is 2-6, the air inlet pipes are symmetrically arranged relative to the axis of the drying tank, the included angle alpha between the axis of the air inlet pipe and the horizontal plane is 10-18 degrees, the air inlet pipes are obliquely downwards arranged, and the air inlet pipes are tangential to the tank wall of the drying tank;
the bottom surface of the drying tank is provided with an upward-protruding guide plate, the bottom end of the drying tank is fixedly communicated with a discharge pipe, and the discharge pipe is communicated with the cyclone collector;
the drying tank also comprises a guide cover, a drainage cap, a second air inlet pipe and a communicating pipe;
the air guide sleeve is a conical sleeve with a hemispherical top end and is coaxial with the drying tank; a gap is reserved between the bottom end of the flow guide plate and the flow guide plate, the surface of the flow guide cover is provided with uniformly arranged flow guide caps, the flow guide caps are protruded towards the outer side of the flow guide cover and are communicated with the inner side and the outer side of the flow guide cover, the opening of the flow guide cap is inclined downwards, and an included angle beta between the opening direction and the horizontal direction is within the range of 5-12 degrees;
the second air inlet pipe is positioned in the air guide sleeve and is coaxial with the air guide sleeve, a ventilation slit which is vertically arranged is arranged on the surface of the second air inlet pipe, air is fed into the inner wall of the air guide sleeve, the air inlet speed is not greater than the air inlet speed of the air inlet pipe, and the communicating pipe is communicated with the bottom end of the second air inlet pipe and is used for feeding air into the second air inlet pipe;
the diameter of the bottom edge of the air guide sleeve is 1/2-3/4 of the inner diameter of the drying tank;
the longitudinal distance between the bottom surface of the ultrasonic vibration screen and the top end of the connecting part of the air inlet pipe and the drying tank is 1/10-1/8 of the longitudinal length of the drying tank.
CN201911131647.7A 2019-11-19 2019-11-19 Metal powder dryer Active CN110793302B (en)

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Application Number Priority Date Filing Date Title
CN201911131647.7A CN110793302B (en) 2019-11-19 2019-11-19 Metal powder dryer

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Application Number Priority Date Filing Date Title
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CN110793302B true CN110793302B (en) 2023-07-25

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111483075A (en) * 2020-05-02 2020-08-04 袁建国 Rubber drying device
CN112974817A (en) * 2021-02-04 2021-06-18 江苏威拉里新材料科技有限公司 Device for producing metal powder for 3D printing through gas atomization
CN114905046B (en) * 2022-06-20 2023-03-24 江苏威拉里新材料科技有限公司 3D printing metal powder spraying processing system and using method thereof
CN115574563B (en) * 2022-10-13 2023-10-13 江苏威拉里新材料科技有限公司 Metal powder rotary drying device and application method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1320571A (en) * 1969-07-31 1973-06-13 Organic Pollution Control Corp Drier for bulk material
CN206347827U (en) * 2016-12-23 2017-07-21 霍美菊 A kind of industrial chemicals high-efficiency stirring drying chamber
CN106969621B (en) * 2017-04-27 2019-05-21 河北工业大学 A kind of circulating short tube gas flow dryer of anti-clogging powder
CN107514894B (en) * 2017-08-31 2019-04-19 河北工业大学 No sieve stream washes formula battery material drier
CN109225860A (en) * 2018-09-04 2019-01-18 江苏威拉里新材料科技有限公司 A kind of 3D printing metal powder production level Four screening blanking system
CN211120548U (en) * 2019-11-19 2020-07-28 江苏威拉里新材料科技有限公司 Metal powder drying machine

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