CN108645760A - A kind of high throughput dusty material detection method, detection device and application process - Google Patents
A kind of high throughput dusty material detection method, detection device and application process Download PDFInfo
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- CN108645760A CN108645760A CN201810427779.3A CN201810427779A CN108645760A CN 108645760 A CN108645760 A CN 108645760A CN 201810427779 A CN201810427779 A CN 201810427779A CN 108645760 A CN108645760 A CN 108645760A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
- G01N23/046—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
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Abstract
A kind of high throughput dusty material detection method, dusty material to be detected is irradiated using radioactive ray, is rebuild to the 3-D view of dusty material to be detected according to the realization of radioactive ray attenuation parameter.The three-dimensional imaging of dusty material may be implemented in the present invention, the information such as shape, grain size, particle diameter distribution and internal soundness defect to obtain dusty material.Ray attenuation and density and the correlation of atomic number is specifically utilized, accurately to obtain the type and Density Distribution information of dusty material.Based on this, the method for the invention is not strict with the type and form of dusty material to be measured, and then eliminates the process especially handled dusty material.The present invention is contained by the independence to dusty material, rotation and lifting multidimensional drives irradiating and detecting, and to obtain the independent information and comprehensive statistics information of each powder material particles, the result is all more accurate either on three-dimensional and statistic mixed-state.
Description
Technical field
The present invention relates to a kind of high-throughput dusty material detection method, detection device and application processes, belong to dusty material
The technical field of detection.
Background technology
The test method of dusty material particle size and its distribution is mainly included at present：Sieve method, microscopic method, sedimentation
Method, air permeability method, electric induction method, optical test method, X-ray transmission method etc..
Wherein, the sieve method is most ancient simplest testing graininess method, using the sieve of different pore size to powder
It is sieved.Screening has two kinds of dry screen and wet screening.Wet screening is applied to easily pockets of fine powder when particulate matter or dry screen in liquid
Material and brittleness powder.The characteristics of sieve method is easy to operate, but repeatability is poor, and the information obtained is single, error
It is larger, the average particle size of dusty material can only be obtained, can not know the information such as the shape of particle.
Wherein, microscopic method is directly to observe grain shape size using optics or electron microscope.Microscopic method measures
Be particle apparent particle size, i.e. the projection size of particle.The particle image analyzer used at present, can be by image
The quantitative measurment of optical projection size has fast come the primitive character for image of seeking knowledge, such as the size of image, distribution, surface area
Fast and reproducible feature.The microscopic method can only be handled by flat image, can not know the three of dusty material
Tie up structural information.Meanwhile this method is larger to hybrid particles intractability.
Wherein, sedimentation is generally divided into two kinds of gravitational settling and centrifugal sedimentation.Gravitational settling is particle in suspension media
By the gravity natural subsidence of itself, centrifugal sedimentation is that the particle in suspension media is settled by centrifugation force effect.
Both of which is that fast, little particle settles slow rule according to bulky grain sedimentation, and grain size is measured from the sinking speed of particle.It is described
Sedimentation is more demanding to sample preparation, it is necessary to prepare finely dispersed suspension.Simultaneously when this method processing hybrid particles, by
Different in variable grain density, sinking speed also differs, and when processing will produce large error.
Wherein, the principle of air permeability method is：After by powder, pressure can reduce the air-flow of constant pressure, and pressure becomes
The size of change with by the fineness of powder it is related.It is equal in powder example weight, and the item that compaction is consistent
Under part, the powder that air-flow passes through particle thick passes through the air-flow pressure intensity values after sample corresponding than being easier to across the small powder of particle
It is larger.The air permeability method measures simply, reproducible, but can only obtain particle mean size, and is unable to measure wet feed.It is different
Error is larger between measuring instrument, average particle size --- and porosity curve figure comparison bothers.
Wherein, the basic principle of electric induction method is that the particle of suspension in the electrolyte is made to pass through an aperture, on aperture both sides
Each leaching there are one electrode, particle when aperture resistance variations by generate voltage pulse, amplitude is directly proportional to the volume of particle.
These pulses are by amplification, examination and count, and the particle size distribution of suspended phase can be measured from the data of calculation.The electric induction
Method is suitable for the test of the hybrid particles of different materials composition, but there are large errors to the test of particle with holes.Meanwhile by
It requires all particles in sample to suspend in the electrolytic solution in electric induction method, sedimentation phenomenon cannot be caused because particle is big, therefore for
The sample of broad particle distribution, such method are difficult to obtain accurate analysis.
Wherein, optic test method refers mainly to laser particle size analyzer.When light beam is irradiated to particle, light is dissipated to all directions
It penetrates, and moment shade is generated behind in particle, irradiation light part is absorbed by particle, and part generates diffraction.The scattering of light and diffraction
There is certain relationship with the granularity of particle, the Size Distribution that particle can be measured using scattered light intensity distribution or photic-energy transfer function is special
Sign.The laser granularity distribution tester requires dusty material quantity too many or very little, diffracted signal can be made too strong too much,
So that photo-electric conversion element is saturated, exceeds test scope；Diffracted signal can be made too weak very little, test is inaccurate.Meanwhile laser particle size
Distribution detector also can only obtain the two-dimensional granular information of dusty material, can not know the three-dimensional structure and powder of dusty material
The internal soundness of powder material particle.
About X-ray transmission method, existing patent document CN201141842 discloses direct for the X-ray of powder material
Digital imaging detection system, wherein describe a kind of method being detected to powder slag inclusion using X-ray, penetrated using X
The method of line transmission imaging, X-ray transparent powder and conveyer belt, are imaged on a display screen, imaging plane and X-ray incidence side
To vertical.X-ray direct digital imaging detecting system for powder material is only used for detecting since its resolution ratio is relatively low
The larger powder of grain size is mainly used for the detection and cleaning of slag inclusion.And since powder is typically stack up on a moving belt
, be formed by image be multiple layer powder image superposition as a result, be likely to cover inside defect cause flase drop.In addition,
The density of tested powder cannot be less than the density of conveyer belt, therefore be particularly suited for the detection of metal powder.
To sum up, there are no can really realize to carry out three dimensional detection to dusty material or dusty material in the prior art
Method.
Invention content
In view of the deficiencies of the prior art, the invention discloses a kind of high-throughput dusty material detection methods.
The invention also discloses a kind of detection devices for realizing above-mentioned detection method.
The invention also discloses the application processes being detected to dusty material.
Technical scheme is as follows：
A kind of high throughput dusty material detection method, dusty material to be detected is irradiated using radioactive ray, which is characterized in that
The 3-D view of dusty material to be detected is rebuild according to the realization of radioactive ray attenuation parameter.
The present invention is further disclosed, is disposed on the direction of radioactive ray irradiation：Radioactive source, powder to be detected
Material, opto-electronic conversion detector, the opto-electronic conversion detector are connected with external computing device, in the radioactive source and to be detected
Dusty material between be provided with preceding collimator；The preceding collimator is used to the pencil-beam of radioactive source being adjusted to right after fladellum
Dusty material is irradiated；The direction of the launch of the i.e. described radioactive ray is parallel with the imaging section of tested powder；Described to be detected
Dusty material and opto-electronic conversion detector between be provided with rear collimator；Collimator is for filtering diffraction and scattering light after described
Line simultaneously focuses to the radioactive ray of direct projection on opto-electronic conversion detector.It is loaded in heretofore described external computing device insighted
The algorithm of other radioactive ray attenuation parameter, the algorithm can also rebuild the graphics of dusty material according to above-mentioned radioactive ray attenuation parameter
Picture, the algorithm are industry CT scanning algorithms commonly used in this field, are not invention which is intended to be protected.Master of the present invention
At the data algorithm to be detected to the grain size of dusty material, particle diameter distribution, internal soundness etc., and pass through external computing device
Reason is realized for statistical analysis to the data of acquisition.The present invention can help dusty material manufacturer and user to dusty material
Quality be detected and control.
The present invention is further disclosed, and the radioactive ray irradiation carries out 360 ° of irradiations to dusty material to be detected, described
Opto-electronic conversion detector is in the radioactive ray on same straight line in real time.The advantages of designing herein is that the radioactive ray shine
It penetrates and irradiation is rotated 360 ° to dusty material to be detected, realize integrated three-dimensional scanning.
The present invention is further disclosed, when the dusty material to be detected is irradiated by the radioactive ray：The powder material
For material in side rotary motion while along being moved perpendicular to the direction of the surfaces of revolution, the internal diameter of the powder container is radioactive ray to powder
The width of the irradiation section of material.The advantages of designing herein is, according to the restriction condition of powder sample property, powder is placed in
In rotation and lifting equipment, realizes and dusty material lifted in rotation, it is flat by setting radiographic source, preceding collimator and detection
The distance between platform makes the radiation exposure width be adapted with powder container internal diameter, is swept comprehensively without dead angle three-dimensional to reach
It retouches, and detection platform position need not be adjusted again.Compared to the indirect scanning mode of rotation, lifting, spiral lift can
To realize continuous scanning, it is further continued for scanning without waiting for sample position adjustment to finish, therefore the frequent of radiographic source need not be carried out
Switch, while reducing the stand-by period, improve detection efficiency.
The present invention is further disclosed, and the dusty material to be detected is filled in a reservoir.This design is, will be to be checked
It surveys powder to fix in a reservoir, the irradiating width of the radioactive ray matches unanimously with container width, convenient for being wanted according to different clients
It asks and obtains dusty material unit of different shapes, to realize the statistics after three-dimensional reconstruction and analysis.
The present invention is further disclosed, and the container for containing powder is cylindrical tubule.Container with fixed form.
The present invention is further disclosed, and the container is the cylindrical tubule of 1~10mm of diameter.The advantages of this design, exists
In, dusty material irradiate without dead angle section using radioactive ray fan beam, greatly reduces scattering, improve accuracy of detection with
Detection efficiency.
The present invention is further disclosed, and the high throughput dusty material detection method further includes：By adjusting transmitted intensity
And focus size, to detect the powder of different-grain diameter range.The type that the present invention can be detected powder is unlimited, and particle size range is minimum
To nanoscale.
The present invention is further disclosed, and the radioactive ray are X-ray, gamma ray or synchrotron radiation X-ray.The present invention can root
Different radiographic sources can be selected according to industry specific requirements, therefore radiographic source is not limited to the shapes such as helical accelerator, linear accelerator
Formula.In the present invention, the divergent-ray with by the section of imaging powder at parallel geometrical relationship, the method with the prior art
It compares, the tomograph and the structure chart inside powder particle that the present invention can be accurately obtained each powder particle, ability
The technical staff in domain realizes by using above-mentioned tomograph to the grain size of dusty material, particle diameter distribution, circularity, volume, close
The accurate statistical analyses of carry out such as degree distribution.
A kind of equipment being detected to above-mentioned high-throughput dusty material, includes at least：Radiographic source, detection platform, photoelectricity
Conversion detector, external computing device and lead room；It is characterized in that, being collimated before being provided between the ray and detection platform
Device；Collimator after being provided between detection platform and opto-electronic conversion detector；The detection platform be can lift in an axial direction, and
It rotates in an axial direction.The present invention is a kind of to have merged numerous advanced skills such as x-ray imaging, opto-electronic conversion, image reconstruction, Machine Design
The integrated system of art.Opto-electronic conversion detector is used for measuring the ray signal across powder, through amplifying and being sent into after analog-to-digital conversion
External computing device carries out image reconstruction.The external computing device is for completing image reconstruction, display and processing etc..The lead
Room is protected for ray safety.Utilize the method for the invention：Multigroup radiographic source and correspondence can be configured in the surrounding of dusty material
Opto-electronic conversion detector, to improve detection efficiency and accuracy of detection.
The present invention is further disclosed, and the equipment that the high throughput dusty material is detected further includes center control system
System, for controlling ray scanning, ray parameter adjustment and opto-electronic conversion detection.
The present invention is further disclosed, and image processing system is loaded in the external computing device.Described image processing
System is used for the three-dimensional reconstruction to dusty material.
Such as the application process of above-mentioned detection device：Metallurgical powder is detected.Such as the application process of above-mentioned detection device：
3D printing powder is detected.Such as the application process of above-mentioned detection device：Powder injection powder is detected.Such as above-mentioned detection
The application process of equipment：Abrasive flour is detected.Such as the application process of above-mentioned detection device：Finished ground cement is examined
It surveys.The present invention for powder metallurgy, 3D printing, dust, grind, the detection of the dusty materials production industry such as cement and user need
It asks, provides a kind of method and apparatus that can powder material particles be carried out with comprehensive detection.
The present invention is further disclosed, and the detection platform includes vertically movable mechanism and rotating mechanism, the vertical shifting
Motivation structure is vertically movable for driving splendid attire powder material container, and the rotating mechanism contains powder material container rotation for driving
Turn；
The vertically movable mechanism includes holder, ball-screw transmission mechanism and the first driving motor, the ball-screw
Transmission mechanism includes guide rail, leading screw and sliding block, and the guide rail and leading screw are rack-mount, and the sliding block can be vertical along guide rail
It slides and coordinates with threads of lead screw, first driving motor is rack-mount and is connect with leading screw；The rotating mechanism packet
Bracket, turntable and the second driving motor are included, the bracket is fixedly connected with a slide block, and the turntable and the second driving motor are respectively mounted
On bracket, second driving motor is connect with turntable, and the splendid attire powder material container is placed on turntable；
The ball-screw transmission mechanism is symmetrically mounted on the both sides of holder, the output shaft of first driving motor and its
In the connection of leading screw, two leading screws are connected by chain-drive mechanism.
The advantages of this design, is that it is vertically movable that the present invention can drive splendid attire powder material container to do by detection platform
With the compound motion rotated around vertical axes, and the height of infinite ray that sends out of preceding collimator with contain powder material container rotation
The distance for turning vertically movable during 360 ° is equal, by enough samples as containing in powder material container, through the invention
360 ° can be carried out to the sample contained in powder material container to scan without dead angle, need not frequently replace sample and switch ray
Source, detection efficiency are high.
The technical advantages of the present invention are that：
The three-dimensional imaging of dusty material may be implemented in the present invention, to obtain the shape of dusty material, grain size, grain size point
The information such as cloth and internal soundness defect.Ray attenuation and density and the correlation of atomic number is specifically utilized, with accurate
Obtain the type and Density Distribution information of dusty material.Based on this, the method for the invention to the type of dusty material to be measured and
Form is not strict with, and then eliminates the process especially handled dusty material.The present invention passes through to dusty material
It is independent contain, rotation and lifting multidimensional drives irradiating and detecting, to obtain the independent information of each powder material particles and comprehensive
Statistical information is closed, the result is all more accurate either on three-dimensional and statistic mixed-state.Method of the present invention can
To help the user of dusty material manufacturer and dusty material to obtain accurate 3-D view and design parameter, make testing result
It is more intuitive and accurate, vital reference role can be played to the application of follow-up powder.
Description of the drawings
Fig. 1 is the overall structure diagram of heretofore described detection device；
Fig. 2 is the Al-12Si powder three-dimensional reconstruction images obtained using the method for the invention, wherein the splendid attire powder
The container of powder material is cuboid container；
Fig. 3 is the powder faultage image measured using the method for the invention and statistic analysis result：Including granule number, sky
Chamber ratio, circularity, average equivalent grain size, equivalent grain size distribution；
Fig. 4 is to be distributed using the powder equivalent grain size that the method for the invention measures；
In Fig. 4, measured powder is Al10SiMg powder, and in figure, abscissa is powder equivalent diameter, and unit is micro-
Rice；
Fig. 5 is the powder particle roundness distribution measured using the method for the invention；
In Fig. 5, abscissa is powder circularity, no unit；
The structural schematic diagram of the heretofore described detection platforms of Fig. 6.
In Fig. 1, Fig. 6,1, radiographic source, 2, preceding collimator, 3, contain powder material container, 4, rear collimator, 5, detection
Device, 6, image processing system, 7, holder, the 8, first driving motor, 9, guide rail, 10, leading screw, 11, sliding block, 12, bracket, 13, turn
Disk, the 14, second driving motor, 15, chain-drive mechanism, 16, collection optics, 17, optical transmission apparatus, 18, opto-electronic conversion detection
Device, 19, front-end electronics circuit, 20, lead room.
Specific implementation mode
The present invention is described in detail with reference to embodiment and Figure of description, but not limited to this.
Embodiment 1,
As shown in Figure 1.
A kind of high throughput dusty material detection method, dusty material to be detected is irradiated using radioactive ray, according to radioactive ray
The 3-D view of dusty material to be detected is rebuild in attenuation parameter realization.
It is disposed on the direction of radioactive ray irradiation：Radioactive source 1, dusty material to be detected, opto-electronic conversion detection
Device 18, the opto-electronic conversion detector 18 are connected with external computing device, the radioactive source 1 and dusty material to be detected it
Between be provided with preceding collimator；The preceding collimator 2 be used for by the radioactive ray of radioactive source 1 expand into after directional light to dusty material into
Row irradiation；Collimator 4 after being provided between the dusty material to be detected and opto-electronic conversion detector 18；Collimation after described
Device 4 is for filtering diffraction and scattering light and focusing to the radioactive ray of direct projection 18 on opto-electronic conversion detector.
The radioactive ray irradiation carries out 360 ° of irradiations to dusty material to be detected, and the opto-electronic conversion detector 18 is real-time
It is on same straight line with the radioactive ray.When using such detection mode, the radioactive ray often irradiate the dusty material
360 °, to get to the scan image of a tomography, are continued 360 ° of irradiating and detecting containers of repetition, the whole of all powder is swept in realization
It retouches.
Embodiment 2,
As a shown in Figure 6.
A kind of high-throughput dusty material detection method as described in Example 1, difference lies in the powder to be detected
When material is irradiated by the radioactive ray：The dusty material is moved in side rotary motion while edge perpendicular to the direction of the surfaces of revolution,
The internal diameter of the powder container is width of the radioactive ray to the irradiation section of dusty material.Dusty material is driven using this mode
When, dusty material lifted in rotation, and lifting unit width and the ray are often rotated by 360 ° by setting dusty material
Irradiate thickness be adapted, and the fladellum ray reach powder container when width and powder container internal diameter be adapted
Condition, to reach comprehensively without dead angle 3-D scanning.
Embodiment 3,
A kind of high-throughput dusty material detection method as described in embodiment 2,3, difference lies in the powder to be detected
Material is filled in container 3.
Such as Fig. 2, the dusty material is filled in a rectangular vessel, then illuminated to scan the graphics come
Shape.The particle of different colours depth all represents the particle of a kind of specific materials.It can clearly find out each particle by Fig. 2
The 3-D graphic of Fig. 2 can also be utilized existing routine techniques by shape and construction if detection side needs more accurate data
It is handled, obtains further parametric statistics data.
Embodiment 4,
A kind of high-throughput dusty material detection method as described in Example 3, difference lies in the appearances for containing powder
Device 3 is cylindrical tubule.The container is the cylindrical tubule of 1~10mm of diameter.Using radioactive ray fan beam to powder material
Material irradiated without dead angle section, greatly reduces scattering, improves accuracy of detection and detection efficiency.
It is the powder faultage image measured using the method for the invention and statistic analysis result such as Fig. 3：Including particle
Number, the distribution of cavity ratio, circularity, average equivalent grain size, equivalent grain size, inner mixture：
Embodiment 5,
A kind of high-throughput dusty material detection method as described in embodiment 1-4, difference lies in the high throughput powder
Material tests method further includes：By adjusting transmitted intensity and focus size, to detect the powder of different-grain diameter range.The present invention
The type that can be detected powder is unlimited, and particle size range is most down to nanoscale.
Embodiment 6,
A kind of high-throughput dusty material detection method as described in embodiment 1-5, the radioactive ray are X-ray.
Alternatively, the radioactive ray are gamma ray.
Alternatively, the radioactive ray are synchrotron radiation X-ray.
Embodiment 7,
As a shown in Figure 6.
It is a kind of to the equipment that high-throughput dusty material is detected described in above-described embodiment 1-6, include at least：Radiographic source 1,
Detection platform, opto-electronic conversion detector 18, external computing device and lead room 20；It is provided between the ray and detection platform
Preceding collimator 2；Collimator 4 after being provided between detection platform and opto-electronic conversion detector 18；The detection platform is can edge
Axial lifting, and rotate in an axial direction.
The equipment that is detected of high throughput dusty material further includes central control system, for control ray scanning,
Ray parameter adjusts and opto-electronic conversion detection.
Image processing system 6 is loaded in the external computing device.Described image processing system is used for dusty material
Three-dimensional reconstruction.
As shown in Figure 1, X-ray is sent out from radiographic source, pencil-beam is adjusted to fladellum by preceding collimator 2, is passed through
The position for adjusting 1 detection platform of radiographic source and opto-electronic conversion detector 18, makes the width of fan-ray beam that can will contain just
Dress powder material container 3 is completely covered, and opto-electronic conversion detector 18 can receive the X-ray projected from sample completely just,
Wherein, the opto-electronic conversion detector 18 is sector.It contains powder material container 3 to be placed in detection platform, ray, which passes through, to be contained
It after filling powder material container 3, is adjusted through collimator 4 later, is received by opto-electronic conversion detector 18 and optical signal is switched into telecommunications
It number stored, converted, is imaged.X-ray radiation center, sample stage center and 18 center of opto-electronic conversion detector should be straight at one
On line.The thickness of fan-ray beam is the thickness of imaging slice.3 spiral escalation of powder material container is contained, is often rotated by 360 °
One layer of scanning is completed, finally Multi Slice Mode result is superimposed to get to the 3-D view of powder sample.
Above-mentioned radiographic source 1 includes X-ray tube, high voltage power supply, control circuit, cooling system, cathode electron gun, anode metal
Target.
The present invention is further disclosed, and the detection platform includes vertically movable mechanism and rotating mechanism, the vertical shifting
Motivation structure is vertically movable for driving splendid attire powder material container 3, and the rotating mechanism contains powder material container 3 for driving
Rotation；
The vertically movable mechanism includes holder 7, ball-screw transmission mechanism and the first driving motor 8, the ball wire
Thick stick transmission mechanism includes guide rail 9, leading screw 10 and sliding block 11, and the guide rail 9 and leading screw 10 are mounted on holder 7, the sliding block 11
Can along 9 vertical sliding of guide rail and with 10 screw-thread fit of leading screw, first driving motor 8 be mounted on holder 7 on and and leading screw
10 connections；The rotating mechanism includes bracket 12, turntable 13 and the second driving motor 14, and the bracket 12 is fixed with sliding block 11 to be connected
It connects, the turntable 13 and the second driving motor 14 are installed on bracket 12, and second driving motor 14 connects with turntable 13
It connects, the splendid attire powder material container 3 is placed on turntable 13；
The ball-screw transmission mechanism is symmetrically mounted on the both sides of holder 7, the output shaft of first driving motor 8 with
Wherein a leading screw connection, two leading screws are connected by chain-drive mechanism.
Embodiment 8,
The application process of detection device as described in Example 7：Metallurgical powder is detected.
Embodiment 9,
The application process of detection device as described in Example 7：3D printing powder is detected.
Embodiment 10,
The application process of detection device as described in Example 7：Powder injection powder is detected.
Embodiment 11,
The application process of detection device as described in Example 7：Abrasive flour is detected.
Embodiment 12,
The application process of detection device as described in Example 7：Finished ground cement is detected.
Application examples：
Specific operating instruction is done to the present invention below by a specific application examples, so that those skilled in the art
It can realize.
Steps are as follows for the execution of the method for the invention：
First, lead room 20 is closed, and opens the roentgen dose X measurement device in monitoring lead room, is then powered on, radiographic source
Send out X-ray：If roentgen dose X is exceeded outside lead room, alarm device sends out alarm, and automatically shuts power off.
Between radiographic source and detection platform there are one or multiple collimators, the openings of sizes of collimator can by manually or
Computer control is adjusted, and the effect of preceding collimator is that X-ray is adjusted to fladellum, and the effect of rear collimator is that filtering dissipates
Penetrate X-ray.Ray is radiated at by preceding collimator on the dusty material in the cylindrical tubule for being contained in 1~10mm of diameter.
Since the shape and diameter of tubule have been fixed, need to only regulate between radiographic source, detection platform and detector
Relative position, you can ensure that the section of sample can be completely covered in X-ray beam, without passing through mobile radiographic source and opto-electronic conversion
Detector realizes the scanning to dusty material, and to keep equipment simpler compact, scanning process is easier.
The present invention completes rotation, lifting indirect type scanning by machine driven system control container, or uses spiral lifting
Integral type scans.Ray is radiated at using rear collimator on opto-electronic conversion detector after being projected in sample.Opto-electronic conversion is visited
After survey device receives ray, electric signal is converted by photoelectric cell, electric signal passes through image procossing after being converted into digital signal
System completes each layer of two dimension or three-dimensional image reconstruction.It counted, analyzed finally by Data Analysis Software, and by result
Output.
Claims (10)
1. a kind of high throughput dusty material detection method, dusty material to be detected is irradiated using radioactive ray, which is characterized in that root
The 3-D view of dusty material to be detected is rebuild according to the realization of radioactive ray attenuation parameter.
2. a kind of high-throughput dusty material detection method according to claim 1, which is characterized in that in radioactive ray irradiation
It is disposed on direction：Radioactive source, dusty material to be detected, opto-electronic conversion detector, the opto-electronic conversion detector with
External computing device is connected, collimator before being provided between the radioactive source and dusty material to be detected；Collimation before described
Device is for the pencil-beam of radioactive source to be adjusted to be irradiated dusty material after fladellum；In the dusty material to be detected
Rear collimator is provided between opto-electronic conversion detector；Collimator is for filtering diffraction and scattering light and by direct projection after described
The radioactive ray crossed focus on opto-electronic conversion detector.
3. a kind of high-throughput dusty material detection method according to claim 1, which is characterized in that the radioactive ray irradiation
360 ° of irradiations are carried out to dusty material to be detected, the opto-electronic conversion detector is in same straight line with the radioactive ray in real time
On.
4. a kind of high-throughput dusty material detection method according to claim 1, which is characterized in that the powder to be detected
When powder material is irradiated by the radioactive ray：The dusty material is transported in side rotary motion while along perpendicular to the direction of the surfaces of revolution
Dynamic, the internal diameter of the powder container is width of the radioactive ray to the irradiation section of dusty material.
5. a kind of high-throughput dusty material detection method according to claim 1, which is characterized in that the powder to be detected
Material is filled in a reservoir；Preferably, it is cylindrical tubule to state and contain the container of powder；Preferably, the container is diameter 1
The cylindrical tubule of~10mm.
6. a kind of high-throughput dusty material detection method according to claim 1, which is characterized in that the high throughput powder
Material tests method further includes：By adjusting transmitted intensity and focus size, to detect the powder of different-grain diameter range；It is preferred that
, the radioactive ray are X-ray, gamma ray or synchrotron radiation X-ray.
7. a kind of equipment being detected to high-throughput dusty material, includes at least：Radiographic source, detection platform, opto-electronic conversion are visited
Survey device, external computing device and lead room；It is characterized in that, collimator before being provided between the ray and detection platform；
Rear collimator is provided between detection platform and opto-electronic conversion detector；The detection platform is to lift in an axial direction, and along axis
To rotation.
8. equipment according to claim 7, which is characterized in that the equipment that the high throughput dusty material is detected also is wrapped
Central control system is included, for controlling ray scanning, ray parameter adjustment and opto-electronic conversion detection；In the external computing device
It is loaded with image processing system.
9. equipment according to claim 7, which is characterized in that the detection platform includes vertically movable mechanism and whirler
Structure, the vertically movable mechanism is vertically movable for driving splendid attire powder material container, and the rotating mechanism is contained for driving
Powder material container rotates；
The vertically movable mechanism includes holder, ball-screw transmission mechanism and the first driving motor, the ball-screw-transmission
Mechanism includes guide rail, leading screw and sliding block, and the guide rail and leading screw are rack-mount, and the sliding block can be along guide rail vertical sliding
And coordinate with threads of lead screw, first driving motor is rack-mount and is connect with leading screw；The rotating mechanism includes support
Frame, turntable and the second driving motor, the bracket are fixedly connected with a slide block, and the turntable and the second driving motor are installed in support
On frame, second driving motor is connect with turntable, and the splendid attire powder material container is placed on turntable；
The ball-screw transmission mechanism is symmetrically mounted on the both sides of holder, the output shaft of first driving motor and wherein one
Root leading screw connects, and two leading screws are connected by chain-drive mechanism.
10. the application process of detection device as described in claim 7-9 any one：Metallurgical powder is detected；It is such as above-mentioned
The application process of detection device：3D printing powder is detected；Such as the application process of above-mentioned detection device：To powder injection powder into
Row detection；Such as the application process of above-mentioned detection device：Abrasive flour is detected；Such as the application process of above-mentioned detection device：
Finished ground cement is detected.
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