CN107159562A - Screening plant and titanium alloy powder screening system - Google Patents
Screening plant and titanium alloy powder screening system Download PDFInfo
- Publication number
- CN107159562A CN107159562A CN201710574339.6A CN201710574339A CN107159562A CN 107159562 A CN107159562 A CN 107159562A CN 201710574339 A CN201710574339 A CN 201710574339A CN 107159562 A CN107159562 A CN 107159562A
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- opening
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- main body
- screen cloth
- screening
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- 239000000843 powder Substances 0.000 title claims abstract description 112
- 238000012216 screening Methods 0.000 title claims abstract description 81
- 229910001069 Ti alloy Inorganic materials 0.000 title claims abstract description 13
- 239000004744 fabric Substances 0.000 claims abstract description 77
- 239000000463 material Substances 0.000 claims abstract description 55
- 230000000712 assembly Effects 0.000 claims abstract description 27
- 238000000429 assembly Methods 0.000 claims abstract description 27
- 238000003860 storage Methods 0.000 claims description 78
- 239000002994 raw material Substances 0.000 claims description 21
- 238000007599 discharging Methods 0.000 claims description 13
- 230000002093 peripheral effect Effects 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 235000021050 feed intake Nutrition 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 230000008676 import Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 10
- 238000007873 sieving Methods 0.000 abstract description 9
- 238000010146 3D printing Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 17
- 241000196324 Embryophyta Species 0.000 description 16
- 239000007789 gas Substances 0.000 description 16
- 230000008569 process Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 8
- 239000007787 solid Substances 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 238000011068 loading method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 108010022579 ATP dependent 26S protease Proteins 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
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- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
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- 230000001681 protective effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING 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
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING 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
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/14—Treatment of metallic powder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/10—Formation of a green body
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/90—Means for process control, e.g. cameras or sensors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING 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
- B07B2201/00—Details applicable to machines for screening using sieves or gratings
- B07B2201/02—Fastening means for fastening screens to their frames which do not stretch or sag the screening surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING 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
- B07B2201/00—Details applicable to machines for screening using sieves or gratings
- B07B2201/04—Multiple deck screening devices comprising one or more superimposed screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/50—Means for feeding of material, e.g. heads
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Analytical Chemistry (AREA)
- Automation & Control Theory (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention provides a kind of screening plant and titanium alloy powder screening system, belong to 3D printing powder sieving production technical field, including the component that feeds intake, Screen assemblies and vacuum feeding component, Screen assemblies include rack, screen cloth main body and guide, guide has the first opening, second opening, surround the guiding wall of guide channel, guide is installed on rack, first opening is configured to accept the material fallen from screen cloth main body, guiding wall is configured to accept the material fallen at the first opening and guides material to the second opening, vacuum feeding component Configuration into by from screen cloth main body sieve after material collection and be thrown to the component that feeds intake.The screening plant is in use, it can put together to drop on next stage Screening Network from the material fallen after screening in screen cloth main body and be sieved again, and material waving to spin and gradually open motion with screen(ing) machine, screening effect is good, it is not easily blocked screen cloth main body, and can repeatedly be sieved, improve yield.
Description
Technical field
The present invention relates to 3D printing powder sieving production technical field, in particular to a kind of screening plant and titanium
Alloy powder screening system.
Background technology
Selective laser fusing metal 3D printing technique (Selective laser melting, SLM) focuses on light using accurate
The preset metal dust from level to level completed of spot rapid melting, can almost directly obtain arbitrary shape and with complete metallurgical junction
The function part of conjunction.Consistency can reach intimate 100%, be a kind of rapid shaping technique of great development prospect, especially in boat
There is particularly important application prospect in the fields such as empty space flight, medical treatment, automobile, mould.SLM technologies use superfine spherical powder as original
Material, usual 30-60 μm of powdering thickness (most thin powdering thickness is up to 20 μm).Even density is obtained in order to shape, performance is consistent
Part, its various performance parameters requirement to powder is extremely harsh, and especially distribution of particles is to evaluate powder property most critical
One of parameter index.Therefore powder in production, selects a kind of stabilization effectively to sieve mode particularly critical.
In actual production, using traditional circular impact screen or the swing sieve that shakes, clogging is also easy to produce in screening,
And exist yield poorly, screen cloth service life is short, the problem of frequently change.In addition, while production efficiency is reduced, also increasing
Multi-pass operation and the quality unstability factor brought, largely have impact on the quality fluctuation of aviation 3D printing powder,
Form the quality unstability factor of follow-up 3D printing process.
The content of the invention
It is an object of the invention to provide a kind of screening plant, to improve traditional powder sieving equipment in screening process
Easily there is screen cloth and block the problem of causing screen cloth service life short and yield poorly.
It is an object of the invention to provide a kind of titanium alloy powder screening system, existed with the powder sieving equipment for improving traditional
Easily occur screen cloth in screening process and block the problem of causing screen cloth service life short and yield poorly.
What embodiments of the invention were realized in：
Based on above-mentioned first purpose, the invention provides a kind of screening plant, including the component that feeds intake, Screen assemblies and true
Empty loading assemblies, the Screen assemblies include rack, screen cloth main body and guide, and the screen cloth main body is installed on the rack
In, the guide has the first opening and the second opening and the guiding wall for surrounding guide channel, the mouth of first opening
Footpath is more than the bore of the described second opening, and the guide is installed on the rack, and first opening is configured to accept from institute
The material that screen cloth main body is fallen is stated, the guiding wall is configured to accept the material fallen at first opening and draws material
It is directed at second opening, the component Configuration that feeds intake is thrown in the screen cloth main body into by material, the vacuum feeding
Component Configuration is into by the material collection after being sieved from the screen cloth main body and being thrown to the component that feeds intake.
In preferred embodiments of the present invention, the area of section perpendicular to its axis of the guide channel along its axis by
Described first is open is gradually reduced to the direction of the described second opening.
In preferred embodiments of the present invention, the Screen assemblies also include screen frame and clip, and the screen frame is provided with
It is multiple, annular slot is formed at the link position of the adjacent screen frame, the rack is connected in the annular slot, and described
Sealing joint strip is provided between the bottom land of the outer peripheral face of rack and the annular slot；The clip is clamped on the adjacent screen frame
Connection gap that is outer and sheltering from the adjacent screen frame；Positioned at the opposite side relative with the guiding piece of the screen cloth main body
The screen cloth at the contact position of the rack with being provided with seal washer.
In preferred embodiments of the present invention, the vacuum feeding component includes the interim storage warehouse of powder and whirlwind point
From device, the interim storage warehouse of powder be provided with the vaccum exhaust outlet for being configured to connect with vavuum pump, storage chamber and with the storage
Deposit powder inlet and powder discharging opening that chamber is connected；The cyclone separator is installed in the storage warehouse, the whirlwind
The import of separator is connected with the powder inlet, and the blanking outlet of the cyclone separator is connected with the storage chamber, institute
The air exit for stating cyclone separator is connected with the vaccum exhaust outlet.
In preferred embodiments of the present invention, the vacuum feeding component also includes feed tube, the two ends of the feed tube
Respectively feed openings and discharge openings, the feed tube is detachably connected with the interim storage warehouse of the powder, and the charging
Opening is connected with the powder discharging opening.
In preferred embodiments of the present invention, the feed tube includes the cylindrical section that is connected and conically shaped section, and described the
One opening is located at conically shaped section positioned at the port of the remote conically shaped section of the cylindrical section, second opening
Port away from the cylindrical section, the port that the bore of the conically shaped section is larger connects the cylindrical section；The cylindrical section
It is connected with the interim storage warehouse of the powder.
In preferred embodiments of the present invention, the component that feeds intake includes mobile feed intake storage tank, raw material storage tank, autofeed
Module and feed promote passage, and the movement storage tank that feeds intake is connected with the raw material storage tank, and the autofeed module is configured
Passage is promoted into accepting the material fallen at the raw material storage tank and being delivered to the feed, the feed promotes passage connection
The charging aperture of the Screen assemblies；The powder discharging opening of the vacuum feeding component connects the raw material storage tank.
In preferred embodiments of the present invention, the component that feeds intake also includes oxygen determination and measuring pressure Instrument assembly.
In preferred embodiments of the present invention, the component that feeds intake also includes feed intake stair and feeding platform.
Based on above-mentioned second purpose, the invention provides a kind of titanium alloy powder screening system, including described screening dress
Put.
The beneficial effect of the embodiment of the present invention is：
In summary, the embodiments of the invention provide a kind of screening plant, its is simple and reasonable, is easy to manufacture to process,
Install with it is easy to use, meanwhile, the screening plant in use, from the material fallen after screening in screen cloth main body
It can put together to drop into and be sieved again on next stage Screening Network, and material waving to spin and gradually open fortune with screen(ing) machine
Dynamic, screening effect is good, is not easily blocked screen cloth main body, and can repeatedly be sieved, and improves yield.It is specific as follows：
The screening plant that the present embodiment is provided, including the component that feeds intake, Screen assemblies and vacuum feeding component, Screen assemblies bag
Included screen cloth main body, the rack for installing screen cloth main body, and in material dropping process be used for directing material make material collection
In guide.When being sieved, material is delivered at the component that feeds intake, material is introduced into upper screen main body, in sieve
In the presence of machine, material completes to sieve for the first time in screen cloth main body, is opened by the material of screen cloth main body from the first of guide
Enter in guide channel, and fall on guiding wall at mouthful, material is slided along guiding wall, and is fallen at the second opening, is fallen
Enter into next stage sieve unit, because material is more concentrated in the presence of guiding wall, drop into next stage screen cloth main body
Material concentrate, material is spinned under the effect of waving of screen(ing) machine and gradually opens motion, and the screening effect of material is good, and in screening process
Middle material can be kept in motion for a long time, i.e., spinning gradually to open on screen cloth is difficult during motion, material screening to stop
In a certain region, screening effect is both improved, while being not easily blocked screen cloth main body.The material fallen from screen cloth main body is by true
The function of empty loading assemblies, is delivered to the component that feeds intake again, can realize the multiple screening of material.
The titanium alloy powder screening system that the present embodiment is provided includes above-mentioned screening plant, with above-mentioned screening plant
All advantages.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be attached to what is used required in embodiment
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore is not construed as pair
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 is the schematic diagram of the screening plant of the embodiment of the present invention；
Fig. 2 is the schematic diagram of the powder sieving system of the embodiment of the present invention；
Fig. 3 is the screen cloth main body of the embodiment of the present invention and the connection diagram of rack；
Fig. 4 be Fig. 3 in A-A to schematic cross-sectional view；
Fig. 5 is the schematic diagram of the rack of the embodiment of the present invention；
Fig. 6 is the schematic cross-sectional view of the guide of the embodiment of the present invention；
Fig. 7 is the schematic diagram of the Screen assemblies of the embodiment of the present invention；
Fig. 8 is the schematic diagram of the vacuum feeding component of the embodiment of the present invention；
Fig. 9 is the schematic diagram of the feed tube of the embodiment of the present invention；
Figure 10 is the schematic diagram of the retaining mechanism of the embodiment of the present invention.
Icon：1- feeds intake component；11- moves the storage tank that feeds intake；12- raw material storage tanks；13- autofeed modules；14-
Feed promotes passage；15- feeds intake stair；16- feeding platforms；2- Screen assemblies；100- sieve units；110- racks；
The annulus of 111- first；The annulus of 112- second；120- screen cloth main bodys；130- guides；131- guiding walls；132- first is opened
Mouthful；133- second is open；200- screen frames；210- conically shapeds portion；220- circular cylinders portion；300- lids；310- charging holes；
400- clips；500- sealing joint strips；600- seal washers；700- rewinding tanks；710- second level rewinding tank；800- vacuum
Loading assemblies；The interim storage warehouse of 810- powder；811- storage chambers；812- vaccum exhaust outlets；813- charging apertures；814- goes out
Material mouth；820- cyclone separators；840- feed tubes；841- cylindrical sections；842- conically shapeds section；843- feed openings；
844- discharge openings；850- retaining mechanisms；851- retaining rings；852- clamping screws；860- exhaust gas filter units；
870- mounting brackets；871- montants；872- cross bars.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.The present invention implementation being generally described and illustrated herein in the accompanying drawings
The component of example can be arranged and designed with a variety of configurations.
Therefore, the detailed description of embodiments of the invention below to providing in the accompanying drawings is not intended to limit claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belongs to the model that the present invention is protected
Enclose.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it further need not be defined and explained in subsequent accompanying drawing.
In the description of the invention, it is necessary to explanation, the orientation or position of the instruction such as term " on ", " under ", " interior ", " outer "
It is or the orientation or position that the invention product is usually put when using based on orientation shown in the drawings or position relationship to put relation
Relation is put, the description present invention is for only for ease of and simplifies description, rather than indicate or imply that the device or element of meaning are necessary
With specific orientation, with specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term
" first ", " second " etc. are only used for distinguishing description, and it is not intended that indicating or implying relative importance.
In the description of the invention, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " setting ",
" installation ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or integratedly be connected
Connect；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, can
To be the connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood with concrete condition
Concrete meaning in the present invention.
It should be noted that in the case where not conflicting, the embodiment in the present invention and the feature in embodiment can phases
Mutually combination.
Screening plant embodiment
Referring to Fig. 1, a kind of screening plant is present embodiments provided, including the component 1 that feeds intake, Screen assemblies 2 and vacuum
Loading assemblies 800.
Referring to Fig. 1, the component 1 that feeds intake include the mobile storage tank 11 that feeds intake, raw material storage tank 12, autofeed module 13, to
Material promotes passage 14, oxygen determination and measuring pressure Instrument assembly, feed intake stair 15 and feeding platform 16.
The mobile storage tank 11 that feeds intake is taper tubular, and one end of the mobile storage tank 11 that feeds intake is feed inlet, and the other end is stored up with raw material
Tank 12 is connected.Raw material storage tank 12 promotes passage 14 to connect by pipeline with feed, and autofeed module 13 is arranged on raw material storage tank
Between 12 and feed propulsion passage 14, the material entered at raw material storage tank 12 in feed propulsion passage 14 can be controlled.Survey
Oxygen and measuring pressure instrument are its 26S Proteasome Structure and Function not to be improved in prior art, the present embodiment, in order to avoid narration is repeated
Burden, herein without describing in detail.The stair 15 that feed intake are arranged on by the mobile storage tank 11 that feeds intake, and workman passes through 15 pairs of the stair that feed intake
The mobile storage tank 11 that feeds intake carries out the addition of material.Feeding platform 16 is arranged on and fed intake on stair 15, is stood for workman.
Referring to Fig. 2, Screen assemblies 2 include sieve unit 100, screen frame 200, lid 300, clip 400, sealing joint strip
500th, seal washer 600, rewinding tank 700 and screen(ing) machine (not shown).
Fig. 3-Fig. 5 is referred to, each sieve unit 100 includes rack 110, screen cloth main body 120 and guide
130。
Refer to Fig. 4 and Fig. 5, rack 110 is annular shape, rack 110 includes integrally formed first annulus 111 and the
Two annulus 112, the section configuration of the first annulus 111 is rectangular-shaped, and the end surface shape of the second annulus 112 is rectangular-shaped, the first circle
Ring 111 is coaxially disposed with the second annulus 112, and the second annulus 112 is located on the end face of the first annulus 111, the first annulus 111
The inner peripheral surface of inner peripheral surface and the second annulus 112 is located on the same face of cylinder, and the outer circumference surface of the first annulus 111 is justified along first
The outer circumference surface of outwardly second annulus 112 of radial direction of ring 111, the i.e. section configuration of rack 110 is L-shaped.It is optional
, the end face of the outer circumference surface of the first annulus 111 and the periphery side face support of the second annulus 112 is set to the conical surface.
Referring to Fig. 3, screen cloth main body 120 is circle, mesh is provided with screen cloth main body 120.Screen cloth main body 120 is arranged on
On rack 110, the external diameter of screen cloth main body 120 is equal with the diameter of the inner peripheral surface of rack 110, the outward flange of screen cloth main body 120
Inner peripheral surface with rack 110 by way of bonding is connected, optionally, and screen cloth main body 120 is arranged on into the second annulus 112
On inner peripheral surface.
Obviously, in actual use, the specification of screen cloth main body 120 is selected on demand, i.e., selected according to being actually needed
The screen cloth main body 120 of different-diameter mesh, realizes different grades of screening.
Referring to Fig. 6, guide 130 is tubular structure, guide 130 is provided with guide channel and with leading to positioned at guiding
First opening 132 at road two ends and the second opening 133, guide channel is surrounded by guiding wall 131.The bore of first opening 132 is big
In the bore of the second opening 133, the first opening 132 is located at the lower section of screen cloth main body 120, for accepting from screen cloth main body 120
The material fallen in mesh, the material entered from the first opening 132 is slided along guiding wall 131, and is slided at the second opening 133
And skidded off at the second opening 133.
Guide 130 is cylinder-like structure, structure and screen cloth main body 120 and the structure phase of rack 110 of guide 130
Adapt to, the cross sectional shape of its axis of the mistake of guide 130 is isosceles trapezoid, namely the first opening 132 and the second opening 133 are
Circular open, the section perpendicular to its axis direction of the guide channel of guide 130 is circle, and guiding wall 131 is circular conical surface,
The pore size of guide channel is gradually reduced along its axis direction from the direction of the first opening 132 to the second opening 133, guide
130 be in funnel-form.One end where first opening 132 of guide 130 is bonded on rack 110, the axis of guide 130
With the axis collinear of screen cloth main body 120, the center of circle of the second opening 133 of guide 130 is located on the axis of screen cloth main body 120,
Namely second opening 133 along its axis direction projection positioned at screen cloth main body 120 center position.
Referring to Fig. 7, screen frame 200 is cylindrical shape, the section perpendicular to its axis direction of screen frame 200 is annular, sieve
Frame 200 is used to install rack 110, and multiple screen frames 200 are arranged in an overlapping arrangement, are formd at the link position of adjacent screen frame 200
Annular slot, the circle that is shaped as perpendicular to its section of annular slot, the axis of annular slot is total to the axis of screen frame 200
Line.Optionally, the two ends along its axis direction of screen frame 200 be respectively arranged with the conically shaped portion 210 turned up and with conically shaped portion
The circular cylinder portion 220 of 210 end connection, the bearing of trend in circular cylinder portion 220 is with the bearing of trend of screen frame 200 on the contrary, taper
Cylinder portion 210, circular cylinder portion 220 and screen frame 200 are coaxially disposed.
Referring to Fig. 2, lid 300 is circular lid, the axis of screen cloth main body 120 is crossed on the center of circle of lid 300, lid 300
Charging hole 310 is provided with, charging hole 310 is located at the center of lid 300.The lid of lid 300 is mounted in the screen cloth positioned at the superiors
In main body 120, lid 300 is connected with screen frame 200.
Clip 400 is with rounded clamping mouthful and two clamping ends, and two clamping ends are close to each other to reduce clamping mouthful
Bore so that realize will be locked positioned at the intraoral screen frame 200 of clamping.
The powder sieving system that the present embodiment is provided, including multilayer screen cloth main body 120, the mesh of multilayer screen cloth main body 120
Aperture is gradually reduced from feed end to discharging extreme direction, realizes the function of fine screen after first primary dcreening operation.Every layer of screen cloth main body 120 is arranged on
On one rack 110, screen cloth main body 120 is adhesively fixed with rack 110.One rack is installed between two neighboring screen frame 200
110, the rack 110 is connected in annular slot, meanwhile, in the end face and corresponding screen frame of the second annulus 112 of rack 110
It is provided between 200 outside seal washer 600, adjacent screen frame 200 and is arranged a clip 400, adjacent screen frame 200 passes through clip
400 are in clamping connection, and are provided with sealing joint strip 500, sealing joint strip between the outer circumference surface and adjacent screen frame 200 of rack 110
500 and the collective effect of seal washer 600, add the sealing of sieve unit 100, it is to avoid powder leakage, and avoid outside
The powder quality on dust and gases affect screen cloth main body 120 that environment enters, in addition, in actual screening process, whole dress
Put and do oscillating motion, relative motion can occur with screen frame 200 for the sealing joint strip 500 between screen frame 200 and rack 110, close
The abrasion that seal strip 500 is produced can enter the powder positioned at screen cloth main body 120 by the space between rack 110 and screen frame 200
In end, and then contaminated powders, therefore, seal washer 600 is provided with the present embodiment between rack 110 and screen frame 200, effectively
The abrasion for improving the generation of sealing joint strip 500 enters screen cloth main body 120, and the powder in screen cloth main body 120 is difficult dirty
Dye.
In screening process, powder material enters from the charging aperture 310 on lid 300, and powder enters screen cloth main body 120
Medium position upper and positioned at screen cloth main body 120, when screen(ing) machine motion drives Screen assemblies 2 to do oscillating motion, powder is helically
Motion is gradually opened, screening effect is good, and material can be kept in motion for a long time in screening process, be not easily blocked mesh.Meanwhile,
Powder in upper screen main body 120 is introduced into guide 130 after screening, is made in the guiding of guide 130
Under, the guiding wall 131 of scattered powder along guide 130 is pooled together to be fallen at the second opening 133, is fallen on
In underlying screen cloth main body 120, and positioned at the medium position of screen cloth main body 120, now, powder material is in screen cloth main body
Spinned on 120 and gradually open motion, sieved, so circulation, realize the screening of powder.In whole screening process, powder is difficult
Mesh is blocked, the service life of screen cloth main body 120 is long, and screening effect is good.
Obviously, when being sieved, the screening per one-level has the powder filtered, namely the larger powder of particle, by mistake
The powder of filter is by pipeline transportation into corresponding rewinding tank 700.Powder material in rewinding tank 700 as needed may be used
To carry out repeating screening again, yield is improved.During actual screening, including three-layer screen main body, i.e., it can realize that three-level is sieved, together
When, three rewinding tanks are provided with, each rewinding tank is used to collect the material left in every grade of screen cloth main body.
Screen(ing) machine drive connection Screen assemblies 2, make Screen assemblies 2 do oscillating motion.It should be noted that sieve is existing skill
Its operation principle and concrete structure are not elaborated in art, the present embodiment.
It should be noted that guide 130 is used for the guiding for realizing material, material is guided to the second opening 133, thing
Material more concentrate, therefore, in other embodiments, guide 130 is made up of four equicrural ladder plates, four equicrural ladder plates according to
Secondary connection surrounds tubular structure, and the side of four equicrural ladder plates surrounds the first opening 132, the opposite side of four equicrural ladder plates
The second opening 133 is surrounded, the section perpendicular to its axis direction of guide 130 is square.The bore of guide 130 along its
Axis direction is gradually reduced from the direction of the first opening 132 to the second opening 133, forms similar funnelform structure.It is corresponding,
Screen cloth main body 120 is square structure, and rack 110 is square structure, and rack 110 has the installing port of square shape.
Referring to Fig. 8, vacuum feeding component 800 includes the interim storage warehouse 810 of powder, cyclone separator 820, vavuum pump
(not shown), feed tube 840, retaining mechanism 850, exhaust gas filter unit 860 and peace pivoted frame 870.
The interim storage warehouse 810 of powder be cylindrical tube structure, the interim storage warehouse 810 of powder perpendicular to its axis direction
Section be annular shape, the interim storage warehouse 810 of powder is provided with the storage chamber 811 of cylindrical shape, is connected with the storage chamber 811
Powder inlet 813 and powder discharging opening 814, and the vaccum exhaust outlet 812 connected with storage chamber 811.In the present embodiment,
Optionally, vaccum exhaust outlet 812 is arranged on an end face along its axis direction for storage warehouse, by powder inlet 813
On the perisporium for being arranged on the interim storage warehouse 810 of powder, optionally, installation is provided with the perisporium of the interim storage warehouse 810 of powder
Projection, installs the outer peripheral face that the raised radial direction along the interim storage warehouse 810 of powder protrudes perisporium, and it is tubulose knot to install raised
Structure, powder inlet 813 is installs raised tube chamber, and tube chamber is connected with storage chamber 811.Powder discharging opening 814 is designed in powder
On one end face of the remote vaccum exhaust outlet 812 of last interim storage warehouse 810, i.e. vaccum exhaust outlet 812, powder inlet 813
Axis direction interval with powder discharging opening 814 along the interim storage warehouse 810 of powder is intervally arranged successively.
Cyclone separator 820 include conical shell, the import connected on conical shell and with the inner chamber of conical shell,
Blanking is exported and air exit, and import is located between air exit and blanking outlet, and blanking outlet is positioned at the straight of conical shell
The less one end in footpath, air exit is located at one end being relatively large in diameter of conical shell.Cyclone separator 820 is to be used for gas-solid system
Or a kind of equipment of the separation of liquid-solid system.Operation principle is that the rotary motion that causes is introduced tangentially into by air-flow, make to have compared with
The solid particle or drop of big centrifugal inertial force, which are got rid of to outside wall surface, to be separated, and cyclone separator 820 uses vertical cylinder structure, internal
It is divided into liquid collecting zone, cyclone separation, area of clean room etc. vertically.The major function of the equipment of cyclone separator 820 is to remove as far as possible
The solid particle polluter and drop carried in mixture is removed, reaches that gas-solid-liquid is separated, to ensure the normal operation of pipeline and equipment.
The separating effect of cyclone separator 820：Under the conditions of design pressure and tolerance, >=10 μm of solid particle can be removed.Whirlwind
Separator 820 is applied to non-sticky of the purification more than 1-3 microns, the dried dust of non-fiber.
Vavuum pump refer to using machinery, physics, chemically or physically chemical method be evacuated to being taken out container and obtained
The device or equipment of vacuum.For popular, vavuum pump is to improve, produce and maintain true in a certain closing space with various methods
Empty device.In the present embodiment, vavuum pump is prior art, and its 26S Proteasome Structure and Function is not improved, in order to avoid narration weight
Multiple burden, herein without describing in detail.
Referring to Fig. 9, feed tube 840 include cylindrical section 841 and conically shaped section 842, cylindrical section 841 perpendicular to it
The section of axis direction is annular, and the two ends of cylindrical section 841 are opening, conically shaped section 842 perpendicular to its axis direction
Section is annular shape, and conically shaped section 842 includes necking end and opening end, and necking end and opening end are opening, conically shaped section 842
Opening end connected with the Single port of cylindrical section 841.One end of the remote conically shaped section 842 of cylindrical section 841 is feed openings
843, one end (necking end) of the remote cylindrical section 841 of conically shaped section 842 is discharge openings 844.Feed openings 843 are circle
Mouthful, discharge openings 844 are circular port.
Optionally, cylindrical section 841 is integrated machine-shaping with conically shaped section 842.
Referring to Fig. 10, retaining mechanism 850 is used to realize the interim storage warehouse 810 of powder and the connection of feed tube 840.Lock
Tight mechanism 850 includes retaining ring 851 and clamping screw 852, and retaining ring 851 has keeper, and the two ends of retaining ring 851 are lock
Tight end, the two ends of retaining ring 851 are spirally connected by clamping screw 852, by adjusting clamping screw 852, can change keeper
Size so realize by keeper object lock, two objects in keeper can also be connected.
Optionally, each locking end is provided with through hole, the screw rod of clamping screw 852 passes through two through holes of two locking ends, then
Be spirally connected nut at the two ends of screw rod respectively, and the locking of two locking ends is realized by screwing nut.
Optionally, retaining ring 851 is bent to form for rectangular strip, and retaining ring 851 has inner peripheral surface and outer peripheral face, in locking
The inner peripheral surface of ring 851 sets elastic layer.
Exhaust gas filter unit 860 includes multistorey strainer mesh, and multistorey strainer mesh is arranged in the way of being laminated.
Peace pivoted frame 870 includes support bar, and support bar includes montant 871 and cross bar 872, and one end of montant 871 is installed
In the stair 15 that feed intake, the other end of montant 871 is vertically installed with cross bar 872.
The titanium alloy powder screening system that the present embodiment is provided, the interim storage warehouse 810 of powder is arranged on cross bar 872,
The interim storage warehouse 810 of powder is vertically arranged, the discharging opening 814 of the interim storage warehouse 810 of powder and the feed openings of cylindrical section 841
843 connections, the interim storage warehouse 810 of powder is connected by retaining ring 851 with cylindrical section 841, the bullet on the inner peripheral surface of retaining ring 851
Property layer simultaneously be fitted in outside the interim storage warehouse 810 of powder and cylindrical section 841, screw clamping screw 852 by the interim storage warehouse of powder
810 and cylindrical section 841 realize connection, now, elastic layer crimp, both play a part of improve sealing, while powder faces
When storage warehouse 810 and cylindrical section 841 it is not easy to wear.Cyclone separator 820 and exhaust gas filter unit 860 are faced installed in powder
When storage warehouse 810 in, the import of cyclone separator 820 is connected with charging aperture 813, and the blanking of cyclone separator 820 is exported with going out
Material mouth 814 is connected, the air exit of cyclone separator 820 by being connected after exhaust gas filter unit 860 with vaccum exhaust outlet 812,
Vavuum pump is connected at vaccum exhaust outlet 812.The interim storage warehouse of powder is arranged on cross bar.
The second level rewinding tank 710 of Screen assemblies 2 passes through hoseline and the charging aperture 813 of the interim storage warehouse 810 of powder
Charging hole pipeline on connection, lid is connected with the necking end of feed tube 840.During work, start vavuum pump, stored up temporarily to powder
Storage 810 is vacuumized, and it is interim that the powder formed in negative pressure, second level rewinding tank 710 is brought to powder due to the formation of pressure difference
Storage warehouse 810, powder is spinned along the outer wall of cyclone separator 820 and moved, and falls on the interim storage warehouse 810 of powder so that solid
Separate, air exit of the gas through cyclone separator 820, then taken out through multiple filtration net at vaccum exhaust outlet 812 with gas
Walk, wherein, there is minimal residue to be blocked on exhaust gas filter unit 860 in gas, the interim storage warehouse 810 of powder is dropped back into again without quilt
Gas is taken away.Powder in the interim storage warehouse 810 of powder is dropped into raw material storage tank 12 by feed tube 840, Ran Houjing
Cross and sieved again in the screen cloth main body that upper strata is entered after autofeed component, feed propulsion passage 14, so circulation.By
There is conically shaped section 842 in feed tube 840, powder is more prone to drop into the charging hole 310 of Screen assemblies 2.
Whole screening plant compact conformation, is not easily blocked screen cloth main body during powder sieving, meanwhile, powder after screening
It can be automatically drawn into raw material storage tank 12 and be sieved herein, improve yield.
, can be with for the ease of vacuumizing and controlling powder towards the blanking speed of Screen assemblies 2 and the number of blanking amount
Valve is set at discharging opening 814 and charging aperture 813.
Optionally, watch window is set on the screen frame of Screen assemblies 2, and Screen assemblies 2 are sieved for three-level, in every grade of screening
One watch window is set on the screen frame of system, the working condition of powder inside screening can be clearly observed.Stored up in screen(ing) machine and raw material
Gas monitor mouthful is set respectively on tank 12, and two gas monitor mouths are respectively connecting to the oxygen determination and measuring pressure instrument group of screening plant
In part, and the oxygen content and pressure inside screening system are automatically controlled using PLC, to ensure working environment in admissible scope
It is interior.
Titanium alloy powder screening system embodiment
Present embodiments provide a kind of titanium alloy powder screening system, including the screening plant that above-described embodiment is provided.
When carrying out titanium alloy powder screening, according to following steps：
1) according to the type of raw materials of required screening and screening specification requirement, selection mesh number suitably preselects screen cloth and fine screen
Screen cloth；Such as 3D printing titanium alloy powder, pre-selection screen cloth selects 100 microns, and fine screen screen cloth selects 45 microns；
2) whether check screening system power supply, gas supply etc. supply normal；Power supply instruction is normal, inert gas pressure
0.2Mpa, opens general supply and supply master switch；
3) protective gas the target set point 500ppm, pressure set points 0.05-0.1Mpa, system of screening system are adjusted
Automatic replacing air function is opened, and the oxygen content in system is dropped to below sets requirement, system pressure difference stabilization is being set
Within provisioning request, whole process about 20min reaches desired value rear substitution and terminated；
4) raw material sieved will be needed to be put into successively into raw material storage tank 12 by the mobile storage tank 11 that feeds intake, opened certainly
Dynamic screening switch, system is in technological parameters such as the ultrasonic frequency vibratory pre-set, delivery rate, swinging screen electric machine frequencies
Lower progress automatic sieving work；
5) powder material falls on autofeed module 13 from raw material storage tank 12 by delivery pipe, and vibrator is promoted in material
Under effect, powder is pushed ahead with given speed, flows to the center of sieving machine, delivery rate is set in 20kg/ hours, is fed
Process can be observed by being fed monitoring mouth, to judge whether feed completes；Powder is fallen on pre-selection screen cloth, with shaking for screen(ing) machine
Pendulum, which is spinned, gradually opens motion, and the powder preselected is fallen on lower floor's fine screen screen cloth, then proceeds by screening；In screening process certainly
Oxygen content and pressure value in dynamic make-up system meeting real-time monitoring system, as being unsatisfactory for, displacement can be fed automatically；
6) first circulation feed terminates, and powder carries out regrading in second level rewinding tank 710, and sieve system is gone back to by automatic cycle
System is completed.Start the powder in vacuum feeding component 800, second level rewinding tank 710 by feed back delivery pipe, through powder inlet
Vacuum feeder is entered, and separates powder and gas by cyclone separator, by powder storage in the interim storage warehouse of powder
In, then in the raw material warehouse through powder discharging opening inflow screening plant, carry out regrading；After regrading terminates, observation the
The blanking situation of three-level rewinding tank, such as blanking amount is less than 300g per hour, then means that screening is completed, i.e., be finely sized to 45 micro-
The powder of rice is all sifted out.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
1. a kind of screening plant, it is characterised in that including the component that feeds intake, Screen assemblies and vacuum feeding component, the screening
Component includes rack, screen cloth main body and guide, and the screen cloth main body is installed in the rack, and the guide has the
One opening and the second opening and the guiding wall for surrounding guide channel, the bore of first opening are more than the described second opening
Bore, the guide is installed on the rack, and first opening is configured to accept the material fallen from the screen cloth main body,
The guiding wall is configured to accept the material fallen at first opening and guided material to second opening, institute
State the component Configuration that feeds intake to be thrown in the screen cloth main body into by material, the vacuum feeding component Configuration is into will be from the screen cloth
Material collection after being sieved in main body is simultaneously thrown to the component that feeds intake.
2. screening plant according to claim 1, it is characterised in that the section perpendicular to its axis of the guide channel
Area is open along its axis from described first and is gradually reduced to the direction of the described second opening.
3. screening plant according to claim 1, it is characterised in that the Screen assemblies also include screen frame and clip,
The screen frame is provided with multiple, annular slot is formed at the link position of the adjacent screen frame, the rack is connected to the ring
In shape neck, and sealing joint strip is provided between the bottom land of the outer peripheral face of the rack and the annular slot；The clip card
Tightly outside the adjacent screen frame and shelter from the connection gap of the adjacent screen frame；Positioned at the screen cloth main body and the guiding
The screen cloth of the relative opposite side of part at the contact position of the rack with being provided with seal washer.
4. the screening plant according to claim any one of 1-3, it is characterised in that the vacuum feeding component includes
The interim storage warehouse of powder and cyclone separator, the interim storage warehouse of powder are provided with the vacuum for being configured to connect with vavuum pump
Exhaust outlet, storage chamber and the powder inlet being connected with the storage chamber and powder discharging opening；The cyclone separator is installed
In the storage warehouse, the import of the cyclone separator is connected with the powder inlet, the blanking of the cyclone separator
Outlet is connected with the storage chamber, and the air exit of the cyclone separator is connected with the vaccum exhaust outlet.
5. screening plant according to claim 4, it is characterised in that the vacuum feeding component also includes feed tube, institute
The two ends for stating feed tube are respectively feed openings and discharge openings, and the feed tube detachably connects with the interim storage warehouse of the powder
Connect, and the feed openings are connected with the powder discharging opening.
6. screening plant according to claim 5, it is characterised in that the feed tube includes the cylindrical section and cone being connected
Shape cylinder section, first opening is located at positioned at the port of the remote conically shaped section of the cylindrical section, second opening
The port of the remote cylindrical section of the conically shaped section, the port that the bore of the conically shaped section is larger connects the cylinder
Section；The cylindrical section is connected with the interim storage warehouse of the powder.
7. screening plant according to claim 1, it is characterised in that the component that feeds intake includes mobile feed intake storage tank, original
Expect that storage tank, autofeed module and feed promote passage, the movement storage tank that feeds intake is connected with the raw material storage tank, it is described oneself
Dynamic feed module is configured to accept the material fallen at the raw material storage tank and be delivered to the feed to promote passage, described to give
Material promotes the charging aperture of the passage connection Screen assemblies；The powder discharging opening of the vacuum feeding component connects the raw material storage
Tank.
8. screening plant according to claim 7, it is characterised in that the component that feeds intake also includes oxygen determination and measuring pressure instrument
Device assembly.
9. screening plant according to claim 7, it is characterised in that the component that feeds intake also includes feed intake stair and throwing
Expect platform.
10. a kind of titanium alloy powder screening system, it is characterised in that including the screening according to claim any one of 1-9
Device.
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| CN201710574339.6A CN107159562A (en) | 2017-07-17 | 2017-07-17 | Screening plant and titanium alloy powder screening system |
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