CN100517140C - Dynamic light on-line particle size measuring and controlling system - Google Patents
Dynamic light on-line particle size measuring and controlling system Download PDFInfo
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- CN100517140C CN100517140C CNB2006101497125A CN200610149712A CN100517140C CN 100517140 C CN100517140 C CN 100517140C CN B2006101497125 A CNB2006101497125 A CN B2006101497125A CN 200610149712 A CN200610149712 A CN 200610149712A CN 100517140 C CN100517140 C CN 100517140C
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Abstract
The invention provides an on-line grain diameter measuring and controlling system for a dynamic light, and consists of a processing device, a capturing unit, a scattering grain diameter detecting unit for the dynamic light and a control unit. The capturing unit is connected with the processing device to capture a sample for detection from the processing device. The scattering grain diameter detecting unit for the dynamic light is connected with the capturing unit, and can analyze the grain diameter distribution of the sample to provide a detecting message. The control unit can receive the detecting message and generate a corresponding control parameter to the processing device. In this way, an on-line realtime detecting and monitoring is realized and the detecting and monitoring outcome is utilized to regulate the processing parameter dynamically to guarantee the quality and production limitation when the processing is carried on.
Description
Technical field
What the present invention relates to is a kind of monitoring and control system, what be particularly related to is a kind of dynamic acquisition sample and detects, then according to testing result FEEDBACK CONTROL process equipment to keep a kind of dynamic light on-line particle size measuring and the control system of the quality of production and efficient.
Background technology
Because nanosecond science and technology are maked rapid progress, the mixed ginseng or the interpolation of nanoscale product are all arranged in every high-tech product, as the well-known for a time therebetween photocatalyst commodity sample of SARS, promptly utilize wet type powder milling apparatus that photocatalyst material is ground to the nanoscale yardstick, make it produce sterilization and effect such as self-cleaning.Present in addition hot far-infrared ray material, utilization is being reeled off raw silk from cocoons into bamboo-carbon fibre after adding the nano bamboo particle, and then is woven into the daily life clothing.Except that this, the pigment as printer dwindles by pigment particle size, can improve the colour vividness of print quality and lightness etc.
In the aforesaid nanoscale product, utilize wet type processing to cooperate suitable spreading agent more, make sample after processing, keep the nano-scale state.In the prior art, the preparation process of can effective monitoring 100nm following particle, often only can therefore the problem because of the parameter setting real-time of process often be arranged with previous processing experience as the reference foundation.Add, artificial careless mistake can make meaningless waste on the hardness ag(e)ing not only delays the timeliness that produces sample, also allows product can't promote on yield.
Therefore, how can be that line measures particle diameter and then control product yield, be the problem of being familiar with people's research and development of this technology.The online detection mode of normal use has following three kinds in the prior art:
(1) centrifugal sedimentation: detect particle size as tw Taiwan patent announcement number No. 593972 disclosed a kind of sedimentation of utilizing.It is to utilize particle sedimentation speed in liquid, extrapolates the size of particle diameter.Opener with the settling velocity of centrifugal force accelerated particle in solution in described case.But in the process of sedimentation, the nanometer particle effect of settling is limited, so it measures particle size range only between 100nm to 300 μ m.In addition, the measurement time of described technology is also longer, detects for online in real time, also is restricted on timeliness.
(2) static light particle size analyzer: it measures principle for utilizing a laser beam by sample, after sample is subjected to the laser light irradiation, produces different diffration figures in the wings on the detector, calculates out particle size by the signal analysis.The shortcoming of traditional static light particle size analyzer is only can do detection with the dilute solution below 0.1% to the particle under the wet type state.Disclosed technology in United States Patent (USP) U.S.Pat.No.5619324 but, be to utilize special scattering receiver (scattering detector) to cooperate sample aerosol device again, sample after the aerosolization is imported in the static light particle size analyzer, obtain the sample particle size values with measurement.Though the method can be detected the higher concentration sample, but sample in the process of aerosolization, may be not enough because of the sample gas fogging degree, cause instrument can't truly record particle diameter mean value.In addition, its equipment also needs larger volume to hold, and the shortcoming that is difficult for installation is also arranged.
(3) ultrasonic particle size measuring equipment: it measures principle is to utilize sound wave by sample the time, and the variation by the reflection wave that produced after the particle encounter in sound wave and the sample records particle size.Described method can detect the sample of flow state, can be one of online test method.But described method needs more sample parameters on sample characteristics of for example cooperates, but that the specimen material parameter obtains is difficult, and its parameter also influences the particle size measuring value.Though the measuring range of described technology can reach 20nm, but to still having very big gap at＜particle below the 5nm.In addition, described the needed cost of technology is also quite high.
(4) the dynamic light granularmetric analysis of desktop: as U.S. Pat .Pat.No.4,990,795 disclosed fixed desktop dynamic light scattering instrument apparatus, its measurement mode is put into described device again and is measured particle diameter for sample is inserted (as cell or sample cell) in the container.Detect if make online particle diameter in this mode, not only do not have preferable sampling timeliness, also need compare under machined parameters changes afterwards, therefore effective dose test sample product particle diameter in real time not only also needs to test in a large number cooperation.
Comprehensively above-mentioned, therefore need a kind of dynamic light on-line particle size measuring badly and control system solves the problem that prior art produces.
Summary of the invention
Fundamental purpose of the present invention is, a kind of dynamic light on-line particle size measuring and control system are provided, it is to utilize dynamic light principle to detect particle size, the advantage that reaches accuracy fast that cooperates dynamic light to detect, after obtaining the sample particle diameter and according to testing result, produce feedback signal and then control process equipment, reach the purpose of dynamic real-time control machining state.
Secondary objective of the present invention is, a kind of dynamic light on-line particle size measuring and control system are provided, and it is to utilize the dynamic light scattering device to analyze particle size, reaches the purpose that can detect nanoscale powder body particle diameter.
Another object of the present invention is to, a kind of dynamic light on-line particle size measuring and control system are provided, it is to utilize humidification device to carry out the humidifying action to form the wet type particle with the sample particle that the dry type process units is produced, reach and to use online detection of dynamic light and the production of control monitoring dry type device, and reach the purpose of crudy monitoring.
To achieve the above object, the technical solution used in the present invention is, a kind of dynamic light on-line particle size measuring and control system are provided, and includes: a process equipment; One acquisition unit, it is to be connected with described process equipment to check a required sample from described process equipment acquisition; One dynamic light scattering particle diameter detecting unit, it is to be connected with described acquisition unit, described dynamic light scattering particle diameter detecting unit can be analyzed the size distribution of described sample so that a detection information to be provided; And a control module, it is to receive described detection information, and produces corresponding controlled variable and feed back to described process equipment.
Preferably, described dynamic light on-line particle size measuring and control system, it is also to include a storage cylinder and described acquisition unit and described process equipment to form a closed circuit.
Preferably, wherein said acquisition unit has more: a main transfer conduit, and it is to have a flowrate control valve, to control the flow of described main transfer conduit; And a transfer conduit, it is to be connected with described main transfer conduit, has more a measurement groove that couples mutually with described dynamic light scattering particle diameter detecting unit on described the transfer conduit.Have more a non-return valve between described transfer conduit and the described main transfer conduit and be back to transfer conduit described time with the product that prevents main transfer conduit.Described flowrate control valve is a throttling valve.
Preferably, described acquisition unit has more: a transparent carrier, and it is to be connected with described process equipment with a passage, detects required sample with acquisition in described process equipment; One clad, it is to be coated on the described transparent carrier; One prism, it is arranged in the described transparent carrier, and it is can reflect a detected light that described dynamic light scattering particle diameter detecting unit produced to described passage; And a receiver, it is arranged in the described transparent carrier, and is connected with described dynamic light scattering particle diameter detecting unit.
Preferably, described acquisition unit has more: a transfer conduit, and it is to form a loop with described process equipment; One transparent carrier, it is to be connected with described loop with a passage, detects required sample with acquisition in described process equipment; One clad, it is to be coated on the described transparent carrier; One prism, it is arranged in the described transparent carrier, and it is can reflect a detected light that described dynamic light scattering particle diameter detecting unit produced to described passage; And a receiver, it is arranged in the described transparent carrier, and is connected with described dynamic light scattering particle diameter detecting unit.
Preferably, described acquisition unit has more: a body, and it is to form a closed circuit with described process equipment, offers a perforate on the described body; One acquisition device, it is arranged in the described perforate, and described acquisition device has: one captures probe, and it is to capture the detection sample with an acquisition groove by described perforate in described body when one first action, and closes described perforate when one second action; And a fibre-optical probe, it is to be connected with described acquisition groove.
Preferably, described process equipment more offers an opening.Described acquisition unit has more: an acquisition device, it is arranged on the described opening, described acquisition device has: an acquisition is popped one's head in, and it is to capture groove acquisition detection sample by described opening with one when one first action, and closes described opening when one second action; And a fibre-optical probe, it is that described acquisition groove is connected, and is connected with described dynamic light scattering particle diameter detecting unit, records the sample particle diameter, is fed back to described control module again.
The present invention more provides a kind of dynamic light on-line particle size measuring and control system, includes: a dry-type processing equipment; One humidifying unit, it is to be connected with described dry-type processing equipment, the product of the described dry-type processing equipment of described humidifying unit fechtable is to form a wet type sample; One dispersal unit, it is to be connected with described humidifying unit, the described wet type sample of described dispersal unit fechtable forms a test sample to disperse described wet type sample; One acquisition unit, it is to be connected with described dispersal unit to capture described test sample; One dynamic light scattering particle diameter detecting unit, it is to be connected with described acquisition unit, described dynamic light scattering particle diameter detecting unit can be analyzed the size distribution of described sample so that a detection information to be provided; And a control module, it is to receive described detection information, and produces corresponding controlled variable and give described process equipment.
Preferably, described humidifying unit is the mode that a water scrubber, a spraying plant or oily formula are collected.
Preferably, described dispersal unit is a stirrer, pearl (ball) mill equipment, high-speed jet equipment or a ultrasonic vibrating device, makes sample reach high dispersion state in solution.
Description of drawings
Figure 1A is dynamic light on-line particle size measuring of the present invention and control system preferred embodiment block schematic diagram;
Figure 1B is the operating process synoptic diagram of dynamic light on-line particle size measuring of the present invention and control system;
Fig. 2 is the acquisition unit first preferred embodiment synoptic diagram of dynamic light on-line particle size measuring of the present invention and control system;
Fig. 3 is the acquisition unit second preferred embodiment synoptic diagram of dynamic light on-line particle size measuring of the present invention and control system;
Fig. 4 A, Fig. 4 B are acquisition unit the 3rd preferred embodiment action synoptic diagram of dynamic light on-line particle size measuring of the present invention and control system;
Fig. 5 is another preferred embodiment synoptic diagram of dynamic light on-line particle size measuring of the present invention and control system.
Description of reference numerals: 1-dynamic light on-line particle size measuring and control system; The 10-process equipment; The 11-acquisition unit; The 11a-acquisition unit; 110a-master's transfer conduit; The 111a-flowrate control valve; 112a-transfer conduit; 113a-measures groove; The 114a-application valve body; The 11b-acquisition unit; The 110b-transparent carrier; The 111b-passage; The 112b-prism; The 113b-receiver; The 114b-clad; The 11c-acquisition unit; The 110c-body; The 111c-acquisition device; 1110-captures probe; 1111-captures groove; The 1112-fibre-optical probe; The 12-storage cylinder; 13-dynamic light scattering particle diameter detecting unit; The 14-control module; The 2-flow process; 20～24-step; 3-dynamic light on-line particle size measuring and control system; 30-dry-type processing equipment; 31-humidifying unit; The 32-dispersal unit; 33-captures detecting unit; The 330-acquisition unit; 331-dynamic light scattering particle diameter detecting unit; The 332-control module; The 90-detected light.
Embodiment
Below in conjunction with accompanying drawing, be described in more detail with other technical characterictic and advantage the present invention is above-mentioned.
See also shown in Figure 1A and Figure 1B, wherein Figure 1A is dynamic light on-line particle size measuring of the present invention and control system preferred embodiment block schematic diagram; Figure 1B is the operating process synoptic diagram of dynamic light on-line particle size measuring of the present invention and control system.Described dynamic light on-line particle size measuring and control system 1 include a process equipment 10, and it is made or milling apparatus for the wet type powder.One side of described process equipment 10 is provided with a closed circuit, and described closed circuit is provided with an acquisition unit 11.Described acquisition unit 11 can carry out step 20 and capture the needed sample of detection from the pipeline of closed circuit.End in the described closed circuit more can be provided with a storage cylinder 12, detects the sample that finishes to deposit, and then is back in the described process equipment 10.
Described acquisition unit 11, it is more to be connected with a dynamic light scattering particle diameter detecting unit 13, its be can carry out step 21 with the size distribution of the sample that measures described acquisition unit 11 and captured so that a detection information to be provided, and described detection information is passed to a control module 14 with step 22.Described control module 14 can step 23 be given described process equipment 10 according to the parameter that described detection information produces FEEDBACK CONTROL, described process equipment 10 can be according to the machined parameters adjustment of processing of feedback, with the quality of control powder manufacturing and enhance productivity.In addition, described control module 14 also can carry out step 24 handles described detection information, and the result that will detect is presented on the display then.Certainly the user also can control or revise the required parameter setting of process equipment 10 runnings according to the state that shows, with the quality of control powder manufacturing and enhance productivity.
Described dynamic light scattering particle diameter detecting unit 13, its detect principle for utilize dynamic light scattering method (Dynamiclight scattering, DLS), be called again the photon correlation method (photon correlation spectroscopy, PCS).Dynamic light scattering method is to utilize laser light to inject to contain in the solution of particle, and laser light is because particle produces scattered light, and the laser light of scattering can change in time, and the change calculations that is risen and fallen by scattered light goes out the size of particle diameter again.By particle in solution because of being in non-absolute zero, so itself contain kinetic energy and produce irregular Brownian movement (Brownianmotion).Because varying in size of particle, its rate of propagation is also different with the Brownian movement degree, in the zone of laser radiation, there are many particles to produce scattered light simultaneously,, have optical path difference when then scattered light arrives detecting device along with the difference of particle position, produce the interference effect scattered light intensity, particle position itself also can so scattered light also changes in time, utilize this signal can calculate mean grain size according to theory along with the time changes again.
The design of described acquisition unit 11 is to capture sample for detecting and analyzing, and next introduces the embodiment of described acquisition unit.See also shown in Figure 2ly, described figure is the acquisition unit first preferred embodiment synoptic diagram of dynamic light on-line particle size measuring of the present invention and control system.Described acquisition unit 11a has more: a main transfer conduit 110a, and it is to have a flowrate control valve 111a, to control the flow of described main transfer conduit 110a, described main transfer conduit 110a more is connected with transfer conduit 112a one time.To be may command enter the flow of described main transfer conduit 111a by process equipment to described flowrate control valve 111a, and in the present embodiment, described flowrate control valve 111a can be a throttling valve.Have more one on described the transfer conduit 112a and measure groove 113a, to collect the sample that is transmitted by described transfer conduit 112a.The sample of producing when process equipment by the adjusting of described flowrate control valve 111a, makes sample be fed to transfer conduit 112a described time when entering main transfer conduit 110a, enters into then in the described measurement groove 113a.Afterwards, carry out particle diameter by described dynamic light scattering particle diameter detecting unit 13 and detect, the sample after will measuring by an application valve body 114a imports in the described main transfer conduit 110a, to finish the action that primary sample measures.Described application valve body 114a can be a non-return valve.
See also shown in Figure 3ly, described figure is the acquisition unit second preferred embodiment synoptic diagram of dynamic light on-line particle size measuring of the present invention and control system.Described acquisition unit 11b is arranged on the described process equipment, and described acquisition unit 11b has a transparent carrier 110b, a prism 112b and a receiver 113b.Described transparent carrier 110b, its inside offers a channel 111b, and described channel 111b can capture the sample in the process equipment to described passage 111b inside by the mode of supplying negative voltage.Described prism 112b is arranged on described transparent carrier 110b inside, to reflect a detected light 90 that described dynamic light scattering particle diameter detecting unit produced to described passage 111b.Described receiver 113b then is arranged in the described transparent carrier 110b, and is connected with described dynamic light scattering particle diameter detecting unit 13.Make described dynamic light scattering particle diameter detecting unit 13 can receive the signal that is transmitted by described receiver 113b and handle calculation, learn the particle diameter of particle at last.And then the supply by malleation, make that the sample in described passage 111b returns in the described process equipment.In addition, disturb the reception of scattered light for fear of external environment condition, so be covered with a clad 114b in described transparent carrier external packets.
Aforementioned second preferred embodiment removes and can be arranged on the online mode that also can adopt direct by acquisition sample in the described process equipment cavity of transfer tube, in addition, described process equipment also can connect a transfer conduit, and described then transparent carrier can detect needed sample by described transfer conduit acquisition.To in the mode of running as noted earlier, do not do at this and to give unnecessary details.
See also shown in Fig. 4 A and Fig. 4 B, be acquisition unit the 3rd preferred embodiment action synoptic diagram of dynamic light on-line particle size measuring of the present invention and control system.Described acquisition unit 11c includes a body 110c and an acquisition device 111c.Described body 110c, it is to form a closed circuit with described process equipment, offers a perforate on the described body 110c.Described acquisition device 111c, it is arranged in the described perforate, described acquisition device 111c has: one captures probe 1110, and it is to capture detection samples with an acquisition groove 1111 by described perforate in described body 110c when one first action, and closes described perforate when one second action.One side of described acquisition groove 1111 is provided with a fibre-optical probe 1112 and is connected with described dynamic light scattering particle diameter detecting unit, with the particle diameter in the detecting acquisition groove.Shown in Fig. 4 A, described body 110c can be by guiding out detection needed sample in the described process equipment.Described then acquisition probe 1110 can make acquisition groove 1111 capture sample in described body 110c by described perforate.Then, shown in Fig. 4 B, capture sample after, described acquisition probe 1110 can withdrawal, to seal described perforate.Then, utilize the sample in 1112 pairs of described acquisition grooves 1111 of described fibre-optical probe to carry out particle size measuring.After the measurement, described acquisition probe 1110 stretches out again, enters in the described body 110c sample is flow back to described body 110c, detects to finish primary particle size.
Described acquisition device 111c also can be set directly on the described process equipment except being arranged on the body.Offer an opening on described process equipment, described then acquisition device 111c is arranged on the described opening, captures stretching out and withdrawal of probe 1110 by controlling, and captures the needed sample of detection in described process equipment.
See also shown in Figure 5ly, described figure is another preferred embodiment synoptic diagram of dynamic light on-line particle size measuring of the present invention and control system.The embodiment of front is the explanation of doing at the process equipment of wet type.To the process equipment in dry type, the present invention more provides a dynamic light on-line particle size measuring and control system 3, and it is to comprise: a dry-type processing equipment 30, a humidifying unit 31, a dispersal unit 32 and an acquisition detecting unit 33.Described humidifying unit 31, it is to be connected with described dry-type processing equipment 30, the product of the described dry-type processing equipment 30 of described humidifying unit 31 fechtables is to form a wet type sample.Described humidifying unit 31 can be the mode that a water scrubber, a spraying plant or oily formula are collected, but not subject to the limits.Described dispersal unit 32, it is to be connected with described humidifying unit 31, the described wet type sample of described dispersal unit 32 fechtables forms a test sample to disperse described wet type sample.In the present embodiment, described dispersal unit 32 can be a stirrer, pearl (ball) mill equipment, high-speed jet equipment or a ultrasonic vibrating device, makes sample reach high dispersion state in solution, makes described wet type sample dispersion so that energy to be provided.Described acquisition verification unit 33 also includes an acquisition unit 330, a dynamic light scattering particle diameter detecting unit 331 and a control module 332.The function mode of described acquisition verification unit 33 is not done at this and to be given unnecessary details as hereinbefore.Utilize dynamic light on-line particle size measuring and control system 3 in the present embodiment, can carry out particle size measuring and control to dry-type processing equipment equally, reach the purpose that promotes mass particle and production efficiency.
The above only is preferred embodiment of the present invention, only is illustrative for the purpose of the present invention, and nonrestrictive.Those skilled in the art is understood, and can carry out many changes to it in the spirit and scope that claim of the present invention limited, revise, even equivalence, but all will fall within the scope of protection of the present invention.
Comprehensively above-mentioned, dynamic light on-line particle size measuring provided by the invention and control system, it is that have can be to doing The process equipment of formula or wet type carries out the advantage of dynamic particle size Detection ﹠ Controling, and then promotes the product of production System and efficient have really met the required important document that possesses of patent of invention method defined application invention, so propose to send out in accordance with the law The application of bright patent.
Claims (12)
1. dynamic light on-line particle size measuring and control system is characterized in that, include:
One process equipment, it is made or milling apparatus for the wet type powder;
One acquisition unit, it is connected with described process equipment to check a required sample from described process equipment acquisition;
One dynamic light scattering particle diameter detecting unit, it is connected with described acquisition unit, and described dynamic light scattering particle diameter detecting unit is analyzed the size distribution of described sample so that a detection information to be provided; And
One control module, it receives described detection information, and produces corresponding controlled variable to described process equipment;
Wherein, described acquisition unit also has:
One transparent carrier, it is connected with described process equipment with a passage, detects required sample with acquisition in described process equipment;
One clad, it is coated on the described transparent carrier;
One prism, it is arranged in the described transparent carrier, and it is can reflect a detected light that described dynamic light scattering particle diameter detecting unit produced to described passage; And
One receiver, it is arranged in the described transparent carrier and with described dynamic light scattering particle diameter detecting unit and is connected.
2. dynamic light on-line particle size measuring as claimed in claim 1 and control system is characterized in that, it also includes a storage cylinder and described acquisition unit and described process equipment and forms a closed circuit.
3. dynamic light on-line particle size measuring as claimed in claim 1 and control system is characterized in that, described acquisition unit also has:
One transfer conduit, itself and described process equipment form a loop.
4. dynamic light on-line particle size measuring and control system is characterized in that it includes:
One dry-type processing equipment;
One humidifying unit, it is connected with described dry-type processing equipment, and described humidifying unit captures the product of described dry-type processing equipment to form a wet type sample;
One dispersal unit, it is connected with described humidifying unit, and described dispersal unit captures described wet type sample and forms a test sample to disperse described wet type sample;
One acquisition unit, it is connected with described dispersal unit to capture described test sample;
One dynamic light scattering particle diameter detecting unit, it is connected with described acquisition unit, and described dynamic light scattering particle diameter detecting unit is analyzed the size distribution of described sample so that a detection information to be provided; And
One control module, it receives described detection information, and produces corresponding controlled variable to described dry-type processing equipment;
Wherein, described acquisition unit also has:
One transparent carrier, it is connected with described process equipment with a passage, detects required sample with acquisition in described process equipment;
One clad, it is coated on the described transparent carrier; And
One prism, it is arranged in the described transparent carrier, and it reflects a detected light that described dynamic light scattering particle diameter detecting unit produced to described passage; And
One receiver, it is arranged in the described transparent carrier, and is connected with described dynamic light scattering particle diameter detecting unit.
5. dynamic light on-line particle size measuring as claimed in claim 4 and control system is characterized in that, described humidifying unit is that water scrubber pattern, spraying plant are collected or oily formula is collected one of them.
6. dynamic light on-line particle size measuring as claimed in claim 4 and control system is characterized in that, described dispersal unit be stirrer, ultrasonic vibrating device, pearl (ball) mill equipment, high-speed jet equipment one of them.
7. dynamic light on-line particle size measuring as claimed in claim 4 and control system is characterized in that, also include a storage cylinder and described acquisition unit and described process equipment and form a closed circuit.
8. dynamic light on-line particle size measuring as claimed in claim 4 and control system is characterized in that, described acquisition unit also has: a transfer conduit, itself and described process equipment form a loop.
9, a kind of dynamic light on-line particle size measuring and control system is characterized in that, include:
One process equipment offers an opening, and described process equipment is manufacturing of wet type powder or milling apparatus;
One acquisition unit, it is connected with described process equipment to check a required sample from described process equipment acquisition;
One dynamic light scattering particle diameter detecting unit, it is connected with described acquisition unit, and described dynamic light scattering particle diameter detecting unit is analyzed the size distribution of described sample so that a detection information to be provided; And
One control module, it receives described detection information, and produces corresponding controlled variable to described process equipment;
Wherein, described acquisition unit also has:
One acquisition device, it is arranged on the described opening, and described acquisition device has:
One acquisition is popped one's head in, and it captures groove acquisition detection sample by described opening with one when one first action, and closes described opening when one second action; And
One fibre-optical probe, it is connected with described acquisition groove, and is connected with described dynamic light scattering particle diameter detecting unit, records the sample particle diameter, feeds back to described control module again.
10, dynamic light on-line particle size measuring as claimed in claim 9 and control system is characterized in that, described system also has a body, and itself and described process equipment form a closed circuit, offer this opening on the described body.
11, a kind of dynamic light on-line particle size measuring and control system is characterized in that, include:
One dry-type processing equipment offers an opening;
One humidifying unit, it is connected with described dry-type processing equipment, and described humidifying unit captures the product of described dry-type processing equipment to form a wet type sample;
One dispersal unit, it is connected with described humidifying unit, and described dispersal unit captures described wet type sample and forms a test sample to disperse described wet type sample;
One acquisition unit, it is connected with described process equipment to check a required sample from described process equipment acquisition;
One dynamic light scattering particle diameter detecting unit, it is connected with described acquisition unit, and described dynamic light scattering particle diameter detecting unit is analyzed the size distribution of described sample so that a detection information to be provided; And
One control module, it receives described detection information, and produces corresponding controlled variable to described process equipment;
Wherein, described acquisition unit also has:
One acquisition device, it is arranged on the described opening, and described acquisition device has:
One acquisition is popped one's head in, and it captures groove acquisition detection sample by described opening with one when one first action, and closes described opening when one second action; And
One fibre-optical probe, it is connected with described acquisition groove, and is connected with described dynamic light scattering particle diameter detecting unit, records the sample particle diameter, feeds back to described control module again.
12, dynamic light on-line particle size measuring as claimed in claim 11 and control system is characterized in that, described system also has a body, and itself and described process equipment form a closed circuit, offer this opening on the described body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNB2006101497125A CN100517140C (en) | 2006-10-23 | 2006-10-23 | Dynamic light on-line particle size measuring and controlling system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101497125A CN100517140C (en) | 2006-10-23 | 2006-10-23 | Dynamic light on-line particle size measuring and controlling system |
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| CN101169630A CN101169630A (en) | 2008-04-30 |
| CN100517140C true CN100517140C (en) | 2009-07-22 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102033036B (en) * | 2010-10-20 | 2013-11-27 | 上海理工大学 | Light full-scattering type on-line granularity measurement device |
| CN103364316B (en) * | 2013-06-29 | 2015-04-08 | 天津大学 | Multi-refractive index particle size multi-point measurement device and method based on optical fiber connection |
| CN104149219B (en) * | 2014-07-31 | 2017-04-26 | 中国科学院重庆绿色智能技术研究院 | Integrated powder body spheroidizing and classifying method |
| CN108532407B (en) * | 2018-05-10 | 2024-05-28 | 河海大学 | Anti-blocking quick-permeation water brick and method for selecting particle size of aggregate in anti-blocking surface layer |
| CN110793450B (en) * | 2019-10-15 | 2022-05-31 | 哈尔滨工程大学 | High-precision particle size measuring device and method based on optical fiber tweezers |
| CN110779836A (en) * | 2019-12-02 | 2020-02-11 | 中国科学院长春光学精密机械与物理研究所 | Atomized particle size testing equipment and method |
| CN115625639A (en) * | 2022-11-09 | 2023-01-20 | 武汉胜安迪科技有限公司 | Grinding fluid particle size measurement counting system |
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