CN214150318U - Particle size detection device - Google Patents
Particle size detection device Download PDFInfo
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- CN214150318U CN214150318U CN202022535806.4U CN202022535806U CN214150318U CN 214150318 U CN214150318 U CN 214150318U CN 202022535806 U CN202022535806 U CN 202022535806U CN 214150318 U CN214150318 U CN 214150318U
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Abstract
The utility model discloses a particle size detection device, including the control unit, the control unit is connected with feed unit, visual detection unit, deashing unit and computational element and processing equipment, and visual detection unit is connected with the computational element, the feed unit is including being used for sampling device, conveying platform and the vibrator to the processing equipment sample. This particle size detection device, sample from the processing equipment through feedway, evenly carry the material to visual detection platform's focal plane on, the computational element carries out statistics to the projection image through the material and calculates and obtain particle size distribution, ash removal device clears up the material and passes back to the processing equipment in, obtain the particle size distribution data of particulate matter through detecting material projection area, the control unit feeds back particle size distribution data to the processing equipment in, can satisfy um and to mm level particle size particulate matter's detecting system simultaneously, can reach wider application scope.
Description
Technical Field
The utility model relates to a particle size detection field specifically is a particle size detection device.
Background
In the processing of fine particulate matter (e.g., flour, quartz), particle size distribution data is important and determines product quality. In order to monitor the particle size distribution data, generally, the particle materials need to be screened through sieve pores with different grades, and the screened particle materials are counted to obtain the particle size distribution data, but the method has low efficiency and cannot be obtained online in real time.
Chinese patent application No. 200580020222.9 describes a system and method for characterizing a ground material in a roller mill, which uses an air duct to transmit, obtains images of particles through a camera, and counts the diameters of the particles to obtain particle size distribution data. The method is influenced by the change of air speed, and the material passing uniformity is influenced to a certain degree; meanwhile, in material transmission and pipelines, the pipelines are too thin and can be blocked by large-particle particles, the statistical accuracy of the particles at the positions where the pipelines are too thick and out of focus can be reduced, and the overall detection accuracy is limited.
Chinese patent No. 200610149712.5 describes a dynamic light online particle size measurement and control system, which is based on the principle of laser scattering and is not suitable for measuring particles larger than 300um, and the particle size is between 100nm and 300 um.
Chinese patent application No. 201080061435.7 describes an apparatus for determining particle size by means of which a dispersed particle sample is optically detected in one apparatus by means of two measurement methods, machine vision and scattering principle. Machine vision measures mainly particles larger than 100um, scattering is used to measure particles of 10-100 um. Because the two-path detection method is adopted, the two-path data may have cross distribution, and the problem of inaccurate statistics exists. Meanwhile, the laser module is very high in cost, and the influence of the particle size of large particles on the precision is large.
SUMMERY OF THE UTILITY MODEL
Solves the technical problem
Not enough to prior art, the utility model provides a particle size detection device has solved the problem of mentioning in the background art.
Technical scheme
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the particle size detection device comprises a control unit, wherein the control unit is connected with a feeding unit, a visual detection unit, an ash removal unit, a calculation unit and processing equipment, and the visual detection unit is connected with the calculation unit.
The feeding unit comprises a sampling device, a conveying platform and a vibrator, wherein the sampling device is used for sampling the processing equipment, the conveying platform comprises a rotating platform and an object stage positioned on the rotating platform, the object stage is made of transparent materials, the vibrator is positioned on one side of the rotating platform, and a hopper of the vibrator is positioned above the object stage.
The visual detection unit comprises a background device and an industrial camera, wherein the background device is positioned below the object stage, the industrial camera is positioned above the object stage, lenses at the bottoms of the background device, the industrial camera and the industrial camera are coaxially arranged, and the optical axis of the industrial camera is perpendicular to the object stage.
The deashing unit includes deashing mechanism and the device that gathers materials, and the device that gathers materials is the collecting hopper that is located the objective table below, and deashing mechanism includes the stand on base and the base, installs the sleeve pipe through the bearing on the stand, and this sleeve pipe passes through driving belt and is connected with rotary platform, and sheathed tube top is equipped with the driving lever, driving lever and objective table's upper surface contact.
Further limiting, the bottom of the shifting rod is made of a rubber strip.
Further limited, the vibrator is an electromagnetic vibrator, and the material of the vibrator hopper is mirror surface stainless steel.
Further defined, the industrial camera is an area-array camera, the resolution is better than 4096 x 4096, and the camera field of view is 5-20 mm.
Further, the lens is a macro lens, and the lens aperture is located between 4 and 16.
Further limited, the background device is a transmission background, the background color is a blue background, the size of the background is larger than 1-3 times of the size of the visual field, and the background light is parallel light or diffuse transmission light.
Further defined, the transmission ratio of the rotary platform and the ash removal mechanism is more than 1.
Further limiting, the accuracy of the vertical runout of the rotation is less than 0.3 mm.
Further defined, the visual inspection unit has a resolution of 1um to 4 um.
Compared with the prior art, the utility model discloses possess following beneficial effect: this particle size detection device, sample from the processing equipment through feedway, evenly carry the material to visual detection platform's focal plane on, the computational element carries out statistics to the projection image through the material and calculates and obtain particle size distribution, ash removal device clears up the material and passes back to the processing equipment in, obtain the particle size distribution data of particulate matter through detecting material projection area, the control unit feeds back particle size distribution data to the processing equipment in, can satisfy um and to mm level particle size particulate matter's detecting system simultaneously, can reach wider application scope.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic diagram of the present invention.
In the figure: the device comprises a vibrator 1, an object stage 2, a rotary platform 3, an industrial camera 4, a lens 5, a background device 6, an ash cleaning mechanism 7, an aggregate device 8, a processing device 9, a control unit 10, a feeding unit 11, a visual detection unit 12, an ash cleaning unit 13 and a calculation unit 14.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: a particle size detection device comprises a control unit 10, wherein the control unit 10 is connected with a feeding unit 11, a visual detection unit 12, an ash removal unit 13, a calculation unit 14 and a processing device 9, and the visual detection unit 12 is connected with the calculation unit 14.
The feeding unit 11 comprises a sampling device, a conveying platform and a vibrator 1, wherein the sampling device is used for sampling the processing equipment 9, the conveying platform comprises a rotating platform 3 and an object stage 2 positioned on the rotating platform 3, the object stage 2 is made of transparent materials, the vibrator 1 is positioned on one side of the rotating platform 3, and a hopper of the vibrator 1 is positioned above the object stage 2.
The visual inspection unit 12 includes a background device 6 located below the stage 2 and an industrial camera 4 located above the stage 2, the background device 6, the industrial camera 4 and a lens 5 at the bottom of the industrial camera 4 are coaxially disposed, and an optical axis of the industrial camera 4 is perpendicular to the stage 2.
Deashing unit 13 includes deashing mechanism 7 and collection material device 8, and collection material device 8 is for being located the collecting hopper of objective table 2 below, and deashing mechanism 7 includes the stand on base and the base, installs the sleeve pipe through the bearing on the stand, and this sleeve pipe passes through driving belt and is connected with rotary platform 3, and the sheathed tube top is equipped with the driving lever, driving lever and objective table 2's upper surface contact.
The bottom of the deflector rod adopts a rubber strip, which plays a good role in protecting the objective table 2.
The industrial camera 4 is an area-array camera, such as a black and white camera, with a resolution better than 4096 x 4096, and a field of view of 5-20mm, such as 8 mm.
The lens 5 is a macro lens 5, and the aperture of the lens 5 is between 4 and 16, for example, a telecentric lens 5 with the aperture of the lens 5 being 10 is adopted.
The background device 6 is a transmission background, the background color adopts a blue background, the size of the background is larger than 1-3 times of the size of a visual field, and the background light is parallel light or diffuse transmission light.
The transmission ratio of the rotary platform 3 and the ash cleaning mechanism 7 is more than 1, and the transmission ratio can be adjusted to 2.
The accuracy of the vertical runout of the rotation is less than 0.3mm, for example, 0.1mm is adopted.
The resolution of the visual detection unit 12 is 1um to 4um, if set to 2 um.
During operation, the granule that sampling device followed processing equipment 9 sample gets into vibrator 1, carries to objective table 2 through vibrator 1 tiling the material, and rotary platform 3 drives objective table 2 and rotates, and when granule material passed through visual detection unit 12, visual detection unit 12 acquireed granule material transmission image, and the magnification of establishing the camera is b times, camera single pixel size an, and particulate matter projection pixel total number is p, and the surface dimension size of corresponding particle is b a2And p, the ash removal mechanism 7 removes the materials to the material collection device 8 for collection.
This particle size detection device, sample from processing equipment 9 through feedway, evenly carry the material to visual detection platform's focal plane on, calculating unit 14 carries out statistics calculation to the projection image through the material and obtains particle size distribution, ash removal device clears up the material and passes back to processing equipment 9 in, obtain the particle size distribution data of particulate matter through detecting material projection area, the control unit 10 feeds back particle size distribution data to processing equipment 9 in, can satisfy um and to mm level particle size particulate matter's detecting system simultaneously, can reach wider application scope.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A particle size detection apparatus, comprising a control unit, characterized in that: the control unit is connected with the feeding unit, the visual detection unit, the ash removal unit, the calculation unit and the processing equipment, and the visual detection unit is connected with the calculation unit;
the feeding unit comprises a sampling device for sampling the processing equipment, a conveying platform and a vibrator, wherein the conveying platform comprises a rotating platform and an object stage positioned on the rotating platform, the object stage is made of transparent materials, the vibrator is positioned on one side of the rotating platform, and a hopper of the vibrator is positioned above the object stage;
the visual detection unit comprises a background device and an industrial camera, wherein the background device is positioned below the objective table, the industrial camera is positioned above the objective table, lenses at the bottoms of the background device, the industrial camera and the industrial camera are coaxially arranged, and the optical axis of the industrial camera is vertical to the objective table;
the deashing unit includes deashing mechanism and the device that gathers materials, and the device that gathers materials is the collecting hopper that is located the objective table below, and deashing mechanism includes the stand on base and the base, installs the sleeve pipe through the bearing on the stand, and this sleeve pipe passes through driving belt and is connected with rotary platform, and sheathed tube top is equipped with the driving lever, driving lever and objective table's upper surface contact.
2. A particle size detection apparatus according to claim 1, wherein: the bottom of the shifting lever adopts a rubber strip.
3. A particle size detection apparatus according to claim 2, wherein: the vibrator is an electromagnetic vibrator, and the material of the vibrator hopper is mirror surface stainless steel.
4. A particle size detection apparatus according to claim 3, wherein: the industrial camera is an area-array camera, the resolution is better than 4096 x 4096, and the field of view of the camera is 5-20 mm.
5. A particle size detection apparatus according to claim 4, wherein: the lens is a macro lens, and the lens aperture is positioned between 4 and 16.
6. A particle size detection apparatus according to claim 5, wherein: the background device is a transmission background, the background color adopts a blue background, the size of the background is larger than 1-3 times of the size of a visual field, and the background light is parallel light or diffuse transmission light.
7. A particle size detection apparatus according to claim 6, wherein: the transmission ratio of the rotary platform to the ash removal mechanism is more than 1.
8. A particle size detection apparatus according to claim 7, wherein: the accuracy of the vertical runout of the rotation is less than 0.3 mm.
9. A particle size detection apparatus according to claim 8, wherein: the resolution of the visual detection unit is 1um to 4 um.
10. A particle size detection apparatus according to any of claims 1 to 9, wherein: the objective table is made of self-cleaning glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022535806.4U CN214150318U (en) | 2020-11-05 | 2020-11-05 | Particle size detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022535806.4U CN214150318U (en) | 2020-11-05 | 2020-11-05 | Particle size detection device |
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| Publication Number | Publication Date |
|---|---|
| CN214150318U true CN214150318U (en) | 2021-09-07 |
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| CN202022535806.4U Active CN214150318U (en) | 2020-11-05 | 2020-11-05 | Particle size detection device |
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| CN (1) | CN214150318U (en) |
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- 2020-11-05 CN CN202022535806.4U patent/CN214150318U/en active Active
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