CN110124429A - A kind of powder collecting vessel - Google Patents

A kind of powder collecting vessel Download PDF

Info

Publication number
CN110124429A
CN110124429A CN201910424837.1A CN201910424837A CN110124429A CN 110124429 A CN110124429 A CN 110124429A CN 201910424837 A CN201910424837 A CN 201910424837A CN 110124429 A CN110124429 A CN 110124429A
Authority
CN
China
Prior art keywords
outer cylinder
powder collecting
collecting vessel
inner cylinder
powder
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.)
Granted
Application number
CN201910424837.1A
Other languages
Chinese (zh)
Other versions
CN110124429B (en
Inventor
殷柳
魏忠诚
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.)
Sichuan Hongbo New Materials Polytron Technologies Inc
Original Assignee
Sichuan Hongbo New Materials Polytron Technologies Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sichuan Hongbo New Materials Polytron Technologies Inc filed Critical Sichuan Hongbo New Materials Polytron Technologies Inc
Priority to CN201910424837.1A priority Critical patent/CN110124429B/en
Publication of CN110124429A publication Critical patent/CN110124429A/en
Application granted granted Critical
Publication of CN110124429B publication Critical patent/CN110124429B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D45/00Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/02Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising gravity
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D45/00Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/12Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D45/00Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/12Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
    • B01D45/14Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by rotating vanes, discs, drums or brushes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D45/00Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/12Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
    • B01D45/16Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by the winding course of the gas stream, the centrifugal forces being generated solely or partly by mechanical means, e.g. fixed swirl vanes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D50/00Combinations of methods or devices for separating particles from gases or vapours

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Cyclones (AREA)
  • Combined Means For Separation Of Solids (AREA)

Abstract

The invention discloses a kind of powder collecting vessels, it is poor to solve existing powder collection system there are effectiveness of classification, the problem of being difficult to effectively to collect Subnano-class superfine powder below, including outer cylinder, the powder collecting tank being connect with outer cylinder discharge port, to the closed cover board of progress at the top of outer cylinder, outer cylinder side is connected with feed pipe, the other side is connected with discharge pipe, the inner cylinder that sandwich is formed with outer cylinder is coaxially arranged in outer cylinder, inner cylinder is connected to feed pipe, inner cylinder is internally provided with blade group, blade group includes at least two grade blades, motor is provided with above cover board, with the sealing element of motor power output end transmission connection, sealing element extends to inner cylinder and is fixedly connected with blade group, setting is connected with vacuum elements between outer cylinder discharge port and powder collecting tank.The powder collecting vessel of the present invention using the above structure can be realized the classification to specified particle diameter and collect, do not need strainer and blowback system, be applicable to sealing and circulating or need the system of protective gas.

Description

A kind of powder collecting vessel
Technical field
The invention belongs to powder collection devices, and in particular to a kind of powder collecting vessel.
Background technique
Powder classification collection mode is broadly divided into physics sedimentation, cyclonic separation at present, cloth bag is collected, strainer is collected etc..Object Reason sedimentation is to carry powder by air-flow to follow the bulky grain of air motion first to settle due to the effect of gravity, is sunk after little particle Drop, and then realize that the classification of powder is collected, but this method is very limited to the effectiveness of classification of powder, and it is larger out to be only capable of sub-argument Particle;Cyclone collection is to utilize the cyclonic air flow formed in air-flow cyclone collector, by centrifugal force, settle bulky grain, For little particle in vortex center as ascending air enters next stage collection device, cyclone classified device can distinguish physics sedimentation cannot The fine powder of differentiation, but the precision of cyclone classified collection is controlled at most in micron dimension, can not achieve to superfine powder Classification and collection;It is using the reticular structure of polymer fiber material itself formation as classification that cloth bag, which is collected, and strainer is collected Collection device using the material of different mesh diameters, and then achievees the purpose that classification is collected according to the different partial size of powder, but It is since dust can block mesh, it is therefore desirable to which blowback system will also regularly replace screen material, and current screen material It is unsatisfactory to the collecting effect of superfine powder, the limit is collected in submicron order, and grading effect is bad, higher operating costs.
Summary of the invention
For existing powder collection system, that there are effectiveness of classification is poor, it is difficult to effectively collect Subnano-class superfine powder below The problem of, the present invention provides a kind of powder collecting vessels.Sandwich is formed in collecting vessel by the way that inner cylinder is added, on inner cylinder top Portion is formed different added with the blade for generating eddy airstream under the drive of speed regulating motor according to the shape of blade and revolving speed Eddy airstream will make flow area and quiescent centre that vortex is formed in collecting vessel, powder due to the limitation of inner tube structure and shape Feed pipe passes through quiescent centre and enters eddy airstream area, and under the drive of air-flow, dust-containing air stream is shrunk to the air column of rotation, and big Grain is collided in collecting vessel inner cylinder inner wall due to the effect of centrifugal force, then falls into collecting tank along inner wall, little particle is with air-flow Downward spiral movement.By adjusting the dimensional parameters of motor speed, blade construction and collecting vessel interior bucket, of collection can choose Grain partial size.
The present invention to achieve the above object, is achieved through the following technical solutions:
A kind of powder collecting vessel, including outer cylinder, the powder collecting tank being connect with outer cylinder discharge port, closed to carrying out at the top of outer cylinder Cover board, the outer cylinder side are connected with feed pipe, and the other side is connected with discharge pipe, it is characterised in that coaxial arrangement in the outer cylinder There is the inner cylinder that sandwich is formed with outer cylinder, the inner cylinder is connected to feed pipe, and the inner cylinder is internally provided with blade group, institute Stating blade group includes at least two grade blades, motor is provided with above the cover board, be sequentially connected with motor power output end it is close Sealing, the sealing element extend to inner cylinder and are fixedly connected with blade group, are arranged between the outer cylinder discharge port and powder collecting tank It is connected with vacuum elements.
In the above-mentioned technical solutions, the inner cylinder includes upper straight tube, centrum and the lower straighttube for being sequentially connected sealing, it is described on The caliber of straight tube is greater than the caliber of lower straighttube.
In the above-mentioned technical solutions, top setting of the blade group in upper straight tube, feed pipe pass through charging pipe fitting It is connected to upper straight tube.
In the above-mentioned technical solutions, it is shifted to install up and down between every grade blade.
In the above-mentioned technical solutions, the gap settings such as flabellum of the flabellum of an every grade blade grade blade adjacent thereto.
In the above-mentioned technical solutions, the motor is adjustable speed motor.
In the above-mentioned technical solutions, the sealing element is magnetic fluid seal.
In the above-mentioned technical solutions, shaft one end in the magnetic fluid seal is connected to motor, and the other end passes through lid Plate extends to inner cylinder and is fixedly connected with blade group.
In the above-mentioned technical solutions, the discharge port of the outer cylinder is conical opening.
In the above-mentioned technical solutions, the vacuum elements include the level-one Hygiene Ball Valve being successively tightly connected, the first pumping Pipe, second level Hygiene Ball Valve, the second exhaust tube, outer cylinder discharge port are connect with level-one Hygiene Ball Valve, powder collecting tank and the second pumping Pipe connection.
In conclusion by adopting the above-described technical solution, the present invention has the following advantages and beneficial effects:
Powder collecting vessel of the invention is novel in design, is skillfully constructed, can particle classifying to different-grain diameter and collection, it is especially right The classification and collection of submicron order and nano level superfine powder.
Powder collecting vessel of the invention is not necessarily to strainer without vulnerable part, can be avoided and cloth bag or strainer collection occurs largely The phenomenon that powder solid is adsorbed by strainer does not need to be equipped with many and diverse blowback system yet, is applicable to sealing circulation or needs The system for wanting protective gas.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention.
Fig. 2 is inner tube structure schematic diagram of the invention.
Fig. 3 is the overlooking structure diagram that blade group of the present invention rotates under motor effect.
Fig. 4 is the wherein level-one blade side structure schematic view in the present invention.
Wherein: 1, outer cylinder, 2, inner cylinder, 2-1, upper straight tube, 2-2, centrum, 2-3, lower straighttube, 3, feed pipe, 4, discharge pipe, 5, cover board, 6, sealing element, 7, motor cabinet, 8, motor, 9, interior tube stent, 10, charging pipe fitting, 11, level-one Hygiene Ball Valve, 12, Second level Hygiene Ball Valve, the 13, first exhaust tube, the 14, second exhaust tube, 15, powder collecting tank, 16, one grade blade, 17, second level leaf Piece, 18, upper bolt hole, 19, lower bolt hole.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.
As shown in Figure 1, a kind of powder collecting vessel, including outer cylinder, it is arranged in outer cylinder and is formed in sandwich with outer cylinder Cylinder.Inner barrel and outer barrel is prepared using stainless steel material.
The top opening of outer cylinder, is closed by cover board, and cover board is connect by ring flange with outer cylinder, is sealed with O-ring. The side of outer cylinder is welded with the feed pipe extended in outer cylinder, and feed pipe is connected to by feeding pipe connector with inner cylinder, feed pipe Connector can be to be flexible coupling (hose adds anchor ear) or Hard link (clip).The outer cylinder other side is welded with discharge pipe.Outer cylinder goes out Material mouth is connected to powder collecting tank, is slid for convenience of powder particle into powder collecting tank, discharge port uses vertebral body structure, centrum knot Structure is connect by ring flange with outer cylinder, is sealed by O-ring.
Setting is connected with vacuum elements between outer cylinder discharge port and powder collecting tank, and vacuum elements include passing through clip successively Level-one Hygiene Ball Valve, the first exhaust tube, second level Hygiene Ball Valve, the second exhaust tube being connected and fixed, it is close with silicagel pad between clip Envelope.First exhaust tube and the second exhaust tube have the small ball of trachea, and discharge port is connect with level-one Hygiene Ball Valve, and powder is collected Tank is connect with the second exhaust tube.
Motor cabinet and adjustable speed motor are provided with above outer cylinder, motor cabinet, which is fixed by screws in, to be collected on cover plate, Motor is fixed by screws on motor cabinet.
As shown in Fig. 2, inner cylinder is tertiary structure, upper straight tube, centrum and lower straighttube including successively welded seal, inner cylinder is logical It crosses interior tube stent and is arranged in outer cylinder, fixation is bolted.Upper straight tube inner top position is provided with blade group, blade group For multilevel structure, including at least two grade blades, the series of blade can be adjusted as needed.The type of blade can be axis stream One of formula, centrifugal, mixed-flow, vortex.As shown in figure 3, second level leaf may be selected in blade group using axial--flow blading Piece, inferior clearance dislocation installation on the flabellum in two grade blades, a grade blade are located at two grade blades top, and the fan of a grade blade Leaf diameter is greater than the flabellum diameter of two grade blades.One grade blade mainly generates downward spiral thrust, and two grade blades mainly generate Eddy airstream.
Motor power output end is provided with sealing element, and shaft one end in sealing element is connect with motor drive, and the other end is worn It crosses collection cover plate and stretches to inner cylinder, be fixedly connected with blade group, such sealing element is same by the power transmission of motor to inner cylinder When outer cylinder is sealed, magnetic fluid seal can be used in sealing element.If dust collection bucket is it is not necessary that when sealing, sealing element can be used instead Thrust bearing.As shown in figure 4, being provided with upper bolt hole and lower bolt hole in the vertical direction of blade axle sleeve, upper bolt hole is under Bolt hole runs through axle sleeve in the horizontal direction, and corresponding bolt hole is provided in the shaft of sealing element, by bolt by blade and Sealing element is fixedly connected, and guarantees that blade center is overlapped with the center of gravity of sealing element.
When motor works, inner cylinder provides fixed boundary condition to the air-flow that blade generates, and plays the role of duct, passes through The dimensional parameters of inner cylinder are adjusted, can control the granularity of dust collected and quality.If a is the upper straight tube height of inner cylinder, b is inner cylinder Upper straight tube diameter, c are the cone height of inner cylinder, and d is the diameter of inner cylinder lower straighttube, and e is inner cylinder lower straighttube height.The value of a is bigger, Collision probability is bigger between dust, and the time of coarse powder centrifugation is bigger, is conducive to collect bulky grain;The value of d is smaller, and the value of c gets over senior general The collision for reducing aggregate and barrel, increases the precision of classification;The value of e gets over senior general and to segment aggregate in eddy airstream tail portion Residence time is longer, more grows up conducive to aggregate, and then collects the superfine powder of low-density.
The course of work of powder collecting vessel are as follows: driven by the motor, multistage blade high speed rotation is formed inside inner cylinder Eddy airstream, the inside of inner cylinder are eddy airstream area, and the interlayer between collecting vessel outer cylinder and collecting vessel inner cylinder is quiescent centre, contain powder Last air-flow enters eddy airstream area, the distance of charging tube hub line a to grade blade by feed pipe under the effect of external circulating fan Greater than feed tube diameter, but again as close as possible to a grade blade, eddy airstream band that the air-flow containing dust is formed in level-one blade It is dynamic lower to enter eddy airstream area, and downward spiral is shrunk to the air column of rotation, bulky grain due to the effect of centrifugal force with inner cylinder Inner wall collision, then fall into collecting tank along inner wall, little particle is moved downward with flow spiral, by adjust motor speed, The dimensional parameters of blade construction and collecting vessel inner cylinder can choose the grain diameter of collection, and the powder without being collected is gone out The negative pressure in air port sucks next stage collecting vessel, and in nano level superfine powder, air-flow containing powder enters eddy airstream area, and is formed Air column is rotated, nano level superfine powder collides in air column, reunites, and air column bottom is contacted with collecting vessel inner cylinder cone discharge port mouth Afterwards, eddy airstream periphery blocked rotation, aggregate in peripheral air stream with after the collision of collecting vessel inner cylinder inner wall because gravitational settling arrives In collecting tank, eddy airstream center fine particle is moved along collecting vessel inner cylinder lower straighttube, after collecting vessel inner cylinder lower straighttube, by Do not constrained by pipeline in air-flow, in downwardly direction gradually radial diffusion, to lose the constraint to powder, will height according to not Partial size together, current density, the adjustment of powder density, cooperation adjustment air outlet diameter, so that circulating fan was formed in air outlet Negative pressure is insufficiently resistant to the gravity of powder reuniting body itself, and the powder for losing constraint will be in air outlet quiescent centre below with gravity Sedimentation, cleaning gas tream will enter quiescent centre at air outlet, return in circulating system from discharge pipe.
When powder is collected, level-one Hygiene Ball Valve and second level Hygiene Ball Valve are first closed, the first exhaust tube and second level are then unclamped Clip between Hygiene Ball Valve, and second level Hygiene Ball Valve, the second exhaust tube, powder collecting tank are integrally moved into packing case.Installation When collecting tank, if system needs inert gas or vacuum protection, needs first to extract the air in the first exhaust tube out, then open Level-one Hygiene Ball Valve and second level Hygiene Ball Valve.The use of powder collecting tank is threadedly coupled, and other component is all using snapping connection, just Just it dismantles.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.

Claims (10)

1. a kind of powder collecting vessel including outer cylinder, the powder collecting tank connecting with outer cylinder discharge port, is closed outer cylinder top Cover board, the outer cylinder side is connected with feed pipe, and the other side is connected with discharge pipe, it is characterised in that coaxially sets in the outer cylinder It is equipped with the inner cylinder that sandwich is formed with outer cylinder, the inner cylinder is connected to feed pipe, and the inner cylinder is internally provided with blade group, The blade group includes at least two grade blades, be provided with above the cover board motor, with the transmission connection of motor power output end Sealing element, the sealing element extend to inner cylinder and are fixedly connected with blade group, set between the outer cylinder discharge port and powder collecting tank It sets and is connected with vacuum elements.
2. a kind of powder collecting vessel according to claim 1, it is characterised in that the inner cylinder includes being sequentially connected sealing Upper straight tube, centrum and lower straighttube, the caliber of the upper straight tube are greater than the caliber of lower straighttube.
3. a kind of powder collecting vessel according to claim 2, it is characterised in that top of the blade group in upper straight tube Setting, feed pipe are connected to by feeding pipe fitting with upper straight tube.
4. a kind of powder collecting vessel according to claim 1, it is characterised in that shifted to install up and down between every grade blade.
5. according to right want 4 described in a kind of powder collecting vessel, it is characterised in that the flabellum of every grade blade level-one leaf adjacent thereto The gap settings such as the flabellum of piece.
6. a kind of powder collecting vessel according to claim 1, it is characterised in that the motor is adjustable speed motor.
7. a kind of powder collecting vessel according to claim 1, it is characterised in that the sealing element is magnetic fluid seal.
8. a kind of powder collecting vessel according to claim 7, it is characterised in that the shaft one in the magnetic fluid seal End is connected to motor, and the other end extends to inner cylinder across cover board and is fixedly connected with blade group.
9. a kind of powder collecting vessel according to claim 1, it is characterised in that the discharge port of the outer cylinder is conical opening.
10. a kind of powder collecting vessel according to claim 1, it is characterised in that the vacuum elements include that successively sealing connects Level-one Hygiene Ball Valve, the first exhaust tube, second level Hygiene Ball Valve, the second exhaust tube connect, outer cylinder discharge port and level-one Hygiene Ball Valve Connection, powder collecting tank are connect with the second exhaust tube.
CN201910424837.1A 2019-05-21 2019-05-21 Powder collecting barrel Active CN110124429B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910424837.1A CN110124429B (en) 2019-05-21 2019-05-21 Powder collecting barrel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910424837.1A CN110124429B (en) 2019-05-21 2019-05-21 Powder collecting barrel

Publications (2)

Publication Number Publication Date
CN110124429A true CN110124429A (en) 2019-08-16
CN110124429B CN110124429B (en) 2022-02-08

Family

ID=67572021

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910424837.1A Active CN110124429B (en) 2019-05-21 2019-05-21 Powder collecting barrel

Country Status (1)

Country Link
CN (1) CN110124429B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114858967A (en) * 2022-05-05 2022-08-05 殷柳 Aluminum powder stability performance measuring device and method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2920422Y (en) * 2006-05-19 2007-07-11 金苗兴 Dust eliminator set
CN101541394A (en) * 2006-11-30 2009-09-23 西湖朗维尤公司 High-pressure separator
CN103987436A (en) * 2011-10-06 2014-08-13 胡斯华纳有限公司 Dust collector with constant suction force
CN104703706A (en) * 2012-10-09 2015-06-10 纳诺控制股份公司 Device for separation of particles from gas flow
CN106807310A (en) * 2017-02-24 2017-06-09 绵阳市宏扬科技有限公司 The equipment that a kind of discharge-induced explosion legal system takes nanometer powder

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2920422Y (en) * 2006-05-19 2007-07-11 金苗兴 Dust eliminator set
CN101541394A (en) * 2006-11-30 2009-09-23 西湖朗维尤公司 High-pressure separator
CN103987436A (en) * 2011-10-06 2014-08-13 胡斯华纳有限公司 Dust collector with constant suction force
CN104703706A (en) * 2012-10-09 2015-06-10 纳诺控制股份公司 Device for separation of particles from gas flow
CN106807310A (en) * 2017-02-24 2017-06-09 绵阳市宏扬科技有限公司 The equipment that a kind of discharge-induced explosion legal system takes nanometer powder

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
宋晓辉等编著: "《铝合金粉材生产技术》", 31 August 2008, 冶金工业出版社 *
袁惠新主编: "《分离工程》", 31 January 2002, 中国石化出版社 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114858967A (en) * 2022-05-05 2022-08-05 殷柳 Aluminum powder stability performance measuring device and method

Also Published As

Publication number Publication date
CN110124429B (en) 2022-02-08

Similar Documents

Publication Publication Date Title
JPH04215875A (en) Pneumatic centrifugal separator
CN209501889U (en) A kind of fluidized bed air flow crusher of controllable granularity
CN113950364B (en) Cyclone type air filtering device
CN203842821U (en) Particle-grading powder separator
JP2010534117A (en) Cyclone with classifier inlet and small particle bypass
CN106824571A (en) A kind of cyclone separator
CN108480066A (en) Cyclone dust collector
CN104984910A (en) High-dispersibility vortex powder selecting machine
CN111013835B (en) Sewage sludge separation cyclone device
CN110124429A (en) A kind of powder collecting vessel
CN105195341A (en) Double-in and double-out steel ball coal mill shaft diameter combined separator
CN206643008U (en) Mill separator
CN204746644U (en) Formula separator is united to go with each other all time low speed coal mill diameter of axle
CN107755106A (en) A kind of air processor for spinning and weaving workshop
CN107185837A (en) A kind of particle grading device and its method
CN207770008U (en) A kind of milling equipment
CN215026858U (en) Internal and external cyclone reverse shunting type air dust removing device
WO2022134687A1 (en) Gas-phase powder grading device
CN106622617B (en) Tailing separator is used in binary channels rotation
CN212119297U (en) Cyclone separator with particle material reverse cyclone gas flow control and multiple particle size distribution
CN207330975U (en) The tangential multi-pipeline cyclone dust collectors of blast furnace gas primary dedusting
CN209094553U (en) A kind of horizontal atomizer of 3D printing metal powder production
CN113145234A (en) Grading device with angle for vertical grading wheel blade
CN209237525U (en) A kind of cartridge type grain deduster
CN207857151U (en) A kind of high efficiency low pressure drop cyclone separator

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant