CN105203436A - Granularity detection method - Google Patents
Granularity detection method Download PDFInfo
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- CN105203436A CN105203436A CN201510598838.XA CN201510598838A CN105203436A CN 105203436 A CN105203436 A CN 105203436A CN 201510598838 A CN201510598838 A CN 201510598838A CN 105203436 A CN105203436 A CN 105203436A
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Abstract
The invention relates to a granularity detection method. The method particularly comprises the steps that a sample enters a sample tank from a feeding funnel, and the sample is vibrated into agglomerated granules under the vibration of the sample tank and continuously and stably fed into a cylindrical funnel; dispersing is conducted on the sample through a dispersion system, and the agglomerate granules are dispersed into single granules; the dispersed granule flow composed of the single granules passes through a testing area of a laser diffraction system under the suction effect of a dust collector, the laser diffraction system measures the granules passing through the testing area and transmits a detected result to a computer to be processed, and a result is obtained; the modular design is adopted, it is guaranteed that the obtained result is reliable and accurate, three modules are installed and combined to form a whole device, and moving and assembling are easy; the optics principles are adopted, detection and analysis of the granule distribution of emulsion, suspension, aerosols, powder aerosols, granules and the like are achieved in the fastest way, the testing speed is high, the testing range is wide, repeatability and authenticity are good, and operation is easy and convenient.
Description
Technical field
The present invention relates to a kind of granule detecting method.
Background technology
Laser particle analyzer is the instrument specially referring to be come by the diffraction of particle or the space distribution of scattered light analysing particulates size, and it can make laser produce this physical phenomenon of scattering test size-grade distribution according to particle.Because laser has good monochromaticity and extremely strong directivity, so a branch of parallel laser will be irradiated to the place of infinity in unencumbered infinite space, and in communication process, seldom there is the phenomenon of dispersing.The complex structure of existing laser particle size analyzer, operation is difficult, and does not carry out dispersion treatment to the particle tested, and causes the grain graininess authenticity of testing poor.
Summary of the invention
Technical matters solved by the invention is to provide a kind of granule detecting method, to solve the shortcoming in above-mentioned background technology.
Technical matters solved by the invention realizes by the following technical solutions:
A kind of granule detecting method, adopt granule detecting instrument to detect granularity, concrete steps are as follows:
1) sample enters sample cell from sample funnel, and under the vibration of sample cell, sample is vibrated into agglomerated particle, and sends into cylinder funnel sustainedly and stably;
2) dispersant system disperses sample, and agglomerated particle is dispersed into individual particle;
3) the scattered grain flow be made up of individual particle under the suction of suction cleaner by the test zone of laser diffraction system, laser diffraction system is measured the particle by test zone, and the result detected is transferred to computer processes, obtain a result.
Granule detecting instrument of the present invention, comprise laser diffraction system, sampling system, dispersant system, described laser diffraction system comprises laser system, receiving system and test zone, laser system and receiving system are arranged on the two ends of base respectively, and laser system is connected by cable with receiving system, test zone is the open area be located between laser system and receiving system, lasing light emitter is provided with in laser system, laser beam expander, multiunit detector is provided with in receiving system, turret lens stationary installation, turret lens, turret lens rotation motor, optical lens, the focus place of optical lens is located at by multiunit detector, laser diffraction system connects computer by Ethernet, described sampling system comprises sample introduction main body machine, sample funnel and sample cell, and sampling system is arranged on platform, and the notch of sample cell is positioned at above the bell mouth of sample funnel, rotating disk, cylinder funnel, dispersion pipe, platform that described dispersant system comprises dispersion main body machine and is arranged on dispersant system main body machine, dispersant system main body machine is arranged on laser diffraction system side, platform is arranged on above dispersion pipe, one end of dispersion pipe is stretched in test zone, and dispersant system is connected with laser diffraction system by RS485 bus.
Laser system of the present invention connects power supply, and laser system is provided with fan cooling system.
Receiving system of the present invention be provided with uncap, pneumatic support frame, laser safety close induction installation, detector moving and focusing system.
Dispersant system of the present invention is provided with RS232 interface and the control panel for manipulating.
Sampling system of the present invention is provided with and knocks hammer.
Advantage and beneficial effect:
(1) the present invention is set to laser diffraction system, dispersant system and sampling system three modules, dispersant system and sampling system is adopted to disperse sample before testing, make the grain size of carrying out testing representative, guarantee that the reliable results obtained is accurate, and adopt three block combiner installations to form, be easy to mobile assembling;
(2) test area size of laser diffraction system can regulate, and different test zone width is satisfied with different grain graininess and is detected, and enables the present invention meet different granularity Detection application requirements;
(3) the present invention adopts dry method sampling system, particle enters dispersant system by the form of vibration, make the sample introduction of sample not by quantitative limitation, be provided with voltage stabilizer in sampling system of the present invention simultaneously, ensure sample rate so not by the impact that immediate current/voltage or other component temperatures change;
(4) sampling system of the present invention is provided with control panel and communication interface, and staff not only can directly be controlled sample introduction parameter by control panel, can also arrange communication interface control sample introduction parameter by computer software;
(5) the present invention adopts optical principle, realizes the determination and analysis of the size-grade distribution to particle in the fastest mode, and test speed is fast, test specification is wide, repeated and authenticity is good, easy and simple to handle.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of the present invention.
Fig. 2 is the structural representation of a kind of embodiment of the present invention
Fig. 3 is the external structure schematic diagram of laser diffraction system.
Fig. 4 is the inner structure schematic diagram of the receiving system of laser diffraction system.
Fig. 5 is the fundamental diagram of sampling system.
Embodiment
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.
Fig. 1-5 is the structural representation of a kind of embodiment of the present invention, and it comprises laser diffraction system 1, sampling system 2, dispersant system 3 and suction cleaner 4.
Laser diffraction system 1 comprises laser system 11, receiving system 12 and test zone 13, test zone 13 is between laser system 11 and receiving system 12, it is an open area, the below of test zone 13 has base 14, laser system 11 and receiving system 12 are separately positioned on the two ends of base 14, laser system 11 and receiving system 12 respect thereto 14 move, and the size of test zone 13 can be regulated, and the below of test zone 13 is the bearing of dispersant system 3; Be provided with lasing light emitter, laser beam expander in laser system 11, laser system 11 connects power supply, and laser system is provided with fan cooling system; Receiving system 12 comprises the multiunit detector 16 be arranged in casing 15, turret lens stationary installation, turret lens 17, turret lens rotation motor 18, optical lens 19, multiunit detector 16 is arranged on the focus place of optical lens 19, casing 15 is provided with uncaps 151, uncap and 151 be connected with pneumatic support frame 152, turret lens 17 is fixed on casing 15 inwall by turret lens stationary installation.
Sampling system 2 comprises sampling system main frame 21, sample funnel 22 and sample cell 23, and sampling system main frame 21 is arranged on platform 35, and the notch of sample cell 23 is just in time positioned at above the bell mouth of cylinder funnel 33, and sample funnel 23 side is also provided with two and knocks hammer.
Dispersant system 3 is rotating disc type dispersant system, and adopt cylinder funnel sample introduction, dispersant system 3 comprises dispersant system main frame 31, rotating disk 32, cylinder funnel 33, dispersion pipe 34, platform 35, dispersant system main frame 31 is arranged on the side of laser diffraction system 1, and one end of dispersion pipe 34 is towards the entrance point of test zone 13, platform 35 is arranged on above dispersion pipe 34.
The inlet scoop of suction cleaner 4 is communicated with the endpiece of test zone 13.
Laser system 11 and receiving system 12 pass through Fiber connection, laser diffraction system 1 is connected with dispersant system 3 by RS485 bus, dispersant system 3 provides power supply by laser diffraction system 1 or sampling system 2, dispersant system 3 is provided with for carrying out the RS232 interface that controls and the control panel for manipulating, and laser diffraction system is connected with computer by Ethernet.
Sampling system 2 adopts dry powder sampling system, for powder is sent into dispersant system 3 sustainedly and stably.Sampling system 2 drives sample cell 23 to carry out periodic vibration by magnet and ensures stable sample rate, sample powder enters sample cell 23 by sample funnel 22, the Oscillation Amplitude of sample cell 23 determines the movement rate of sample powder in sample cell 23, the principle of work of sampling system 2 is: (1) particle is in initial position A, (2) sample cell 23 is under the effect of magnet, move obliquely, due to inertia effect, particle can not move along with moving, (3) under gravity, particle straight line drops to position B, (4) when sample cell 23 gets back to initial position A, particle is moved to position C from position A along with this motion.Be provided with voltage stabilizer in sampling system 2, this ensures sample rate not by the impact that immediate current/voltage fluctuation or other component temperatures change.Agglomerated particle, for disperseing sample before test, is dispersed into individual particle by dispersant system 3.Laser diffraction system 1 is the core of whole testing apparatus, by the scattered particle of dispersant system 3 at test zone 13 place with monochromatic collimated beam generation diffraction, light after diffraction arrives multiunit detector 16 after optical lens 19 focuses on, on multiunit detector 16, light intensity is transferred to computer by Ethernet, software in computer processes signal, is then converted into granularity distribution result.
Detection method of the present invention:
1) sample enters sample cell 23 from sample funnel 22, and under the vibration of sample cell 23, sample is vibrated into agglomerated particle, and sends into cylinder funnel 33 sustainedly and stably;
2) dispersant system 3 pairs of samples disperse, and agglomerated particle is dispersed into individual particle;
3) the scattered grain flow be made up of individual particle under the suction of suction cleaner 4 by the test zone 13 of laser diffraction system 1, laser diffraction system 1 is measured the particle by test zone 13, and the result detected is transferred to computer processes, obtain a result.
More than show and describe ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (6)
1. a granule detecting method, is characterized in that, adopt granule detecting instrument to detect granularity, concrete steps are as follows:
1) sample enters sample cell from sample funnel, and under the vibration of sample cell, sample is vibrated into agglomerated particle, and sends into cylinder funnel sustainedly and stably;
2) dispersant system disperses sample, and agglomerated particle is dispersed into individual particle;
3) the scattered grain flow be made up of individual particle under the suction of suction cleaner by the test zone of laser diffraction system, laser diffraction system is measured the particle by test zone, and the result detected is transferred to computer processes, obtain a result.
2. a kind of granule detecting method according to claim 1, it is characterized in that, described granule detecting instrument comprises laser diffraction system, sampling system, dispersant system and suction cleaner, described laser diffraction system comprises laser system, receiving system and test zone, laser system and receiving system are arranged on the two ends of base respectively, and laser system is connected by cable with receiving system, test zone is the open area be located between laser system and receiving system, lasing light emitter is provided with in laser system, laser beam expander, multiunit detector is provided with in receiving system, turret lens stationary installation, turret lens, turret lens rotation motor, optical lens, the focus place of optical lens is located at by multiunit detector, laser diffraction system connects computer by Ethernet,
Described sampling system comprises sample introduction main body machine, sample funnel and sample cell, and sampling system is arranged on platform, and the notch of sample cell is positioned at above the bell mouth of sample funnel; Rotating disk, cylinder funnel, dispersion pipe, platform that described dispersant system comprises dispersion main body machine and is arranged on dispersant system main body machine, dispersant system main body machine is arranged on laser diffraction system side, platform is arranged on above dispersion pipe, one end of dispersion pipe is towards the entrance point of test zone, and dispersant system is connected with laser diffraction system by RS485 bus; The air entry of described suction cleaner is communicated with the endpiece of test zone.
3. a kind of granule detecting method according to claim 2, is characterized in that, described laser system connects power supply, and laser system is provided with fan cooling system.
4. a kind of granule detecting method according to claim 2, is characterized in that, described receiving system be provided with uncap, pneumatic support frame, laser safety close induction installation, detector moving and focusing system.
5. a kind of granule detecting method according to claim 2, is characterized in that, described dispersant system is provided with RS232 interface and the control panel for manipulating.
6. a kind of granule detecting method according to claim 2, it is characterized in that, described sampling system is provided with and knocks hammer.
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| CN201510598838.XA CN105203436A (en) | 2015-09-18 | 2015-09-18 | Granularity detection method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769702A (en) * | 2017-03-01 | 2017-05-31 | 西南大学 | The measurement apparatus and measuring method of a kind of powdered rubber |
| CN108732095A (en) * | 2018-04-25 | 2018-11-02 | 桂林理工大学 | A kind of solid powder sample injection method in emission spectrum spectrograph |
| CN108956461A (en) * | 2018-04-25 | 2018-12-07 | 桂林理工大学 | A kind of solid powder sampling system |
| CN109641238A (en) * | 2016-08-02 | 2019-04-16 | 霍维奥尼技术有限公司 | Analysis method for being modified to reproducible particle size measurement is developed and the method and apparatus of sample preparation |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2285468Y (en) * | 1996-09-12 | 1998-07-01 | 中国科学院化工冶金所 | Device for determining grain size by image precipitation method |
| JP2001337028A (en) * | 2000-05-30 | 2001-12-07 | Nikkiso Co Ltd | Method and apparatus for measuring particle size distribution |
| JP2009156595A (en) * | 2007-12-25 | 2009-07-16 | Nikkiso Co Ltd | Particle size distribution measuring device |
| CN102252944A (en) * | 2011-05-06 | 2011-11-23 | 清华大学 | Measurement method for particle size |
| CN102485352A (en) * | 2010-12-03 | 2012-06-06 | 中国石油天然气集团公司 | Composite separated type sand separation method and sand separation machine |
| CN102768172A (en) * | 2012-07-02 | 2012-11-07 | 清华大学 | Analytical equipment for detecting particle size and/or particle form |
-
2015
- 2015-09-18 CN CN201510598838.XA patent/CN105203436A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2285468Y (en) * | 1996-09-12 | 1998-07-01 | 中国科学院化工冶金所 | Device for determining grain size by image precipitation method |
| JP2001337028A (en) * | 2000-05-30 | 2001-12-07 | Nikkiso Co Ltd | Method and apparatus for measuring particle size distribution |
| JP2009156595A (en) * | 2007-12-25 | 2009-07-16 | Nikkiso Co Ltd | Particle size distribution measuring device |
| CN102485352A (en) * | 2010-12-03 | 2012-06-06 | 中国石油天然气集团公司 | Composite separated type sand separation method and sand separation machine |
| CN102252944A (en) * | 2011-05-06 | 2011-11-23 | 清华大学 | Measurement method for particle size |
| CN102768172A (en) * | 2012-07-02 | 2012-11-07 | 清华大学 | Analytical equipment for detecting particle size and/or particle form |
Non-Patent Citations (4)
| Title |
|---|
| 李雨成 等: "全自动漏斗吸嘴式粉尘发生装置样机研制", 《安全与环境学报》 * |
| 牛占 等: "激光粒度分析仪应用于黄河泥沙颗粒分析的实验研究", 《泥沙研究》 * |
| 耿建芳: "激光粒度仪（干法测试）在水泥质量控制中的应用", 《2005中国水泥技术交流会论文集》 * |
| 黄琳 等: "用激光粒度测量法测定煤粉粒度时分散条件的选择", 《实验室研究与探索》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109641238A (en) * | 2016-08-02 | 2019-04-16 | 霍维奥尼技术有限公司 | Analysis method for being modified to reproducible particle size measurement is developed and the method and apparatus of sample preparation |
| CN106769702A (en) * | 2017-03-01 | 2017-05-31 | 西南大学 | The measurement apparatus and measuring method of a kind of powdered rubber |
| CN106769702B (en) * | 2017-03-01 | 2019-08-30 | 西南大学 | A kind of measuring device and measurement method of powdered rubber |
| CN108732095A (en) * | 2018-04-25 | 2018-11-02 | 桂林理工大学 | A kind of solid powder sample injection method in emission spectrum spectrograph |
| CN108956461A (en) * | 2018-04-25 | 2018-12-07 | 桂林理工大学 | A kind of solid powder sampling system |
| CN108956461B (en) * | 2018-04-25 | 2023-05-30 | 桂林理工大学 | Solid powder sampling system |
| CN108732095B (en) * | 2018-04-25 | 2023-08-11 | 桂林理工大学 | Solid powder sampling method in emission spectrum spectrograph |
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Application publication date: 20151230 |